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Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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27-02-2007 дата публикации

УСТРОЙСТВО ДЛЯ ТЕРМОФИКСАЦИИ ПРЯЖИ

Номер: RU0000061293U1
Автор: Баранова Елена Васильевна, Капитанов Анатолий Федорович, Кобраков Константин Иванович, Папилин Николай Михайлович
Принадлежит: Государственное образовательное учреждение высшего профессионального образования "Московский государственный текстильный университет им. А.Н. Косыгина"

Устройство для термофиксации пряжи, содержащее термокамеру в виде цилиндрической трубы, к которой подведен воздуховод, соединенный с пневмопроводом для подачи нагретого воздуха в зону движения обрабатываемой нити, отличающееся тем, что оно снабжено распределителем нагретого воздуха с дополнительными пневмопроводами, каждый из которых соединен с термокамерой и имеет клапан для индивидуального распределения количества подаваемого воздуха в конкретную зону, и торцевыми регуляторами для регулирования общего количества воздуха в термокамере. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 61 293 (13) U1 (51) МПК D02J 1/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (21), (22) Заявка: 2006137025/22 , 19.10.2006 (24) Дата начала отсчета срока действия патента: 19.10.2006 (45) Опубликовано: 27.02.2007 6 1 2 9 3 R U Формула полезной модели Устройство для термофиксации пряжи, содержащее термокамеру в виде цилиндрической трубы, к которой подведен воздуховод, соединенный с пневмопроводом для подачи нагретого воздуха в зону движения обрабатываемой нити, отличающееся тем, что оно снабжено распределителем нагретого воздуха с дополнительными пневмопроводами, каждый из которых соединен с термокамерой и имеет клапан для индивидуального распределения количества подаваемого воздуха в конкретную зону, и торцевыми регуляторами для регулирования общего количества воздуха в термокамере. Ñòðàíèöà: 1 U 1 U 1 (54) УСТРОЙСТВО ДЛЯ ТЕРМОФИКСАЦИИ ПРЯЖИ 6 1 2 9 3 (73) Патентообладатель(и): Государственное образовательное учреждение высшего профессионального образования "Московский государственный текстильный университет им. А.Н. Косыгина" (RU) R U Адрес для переписки: 119071, Москва, ГСП-1, М. Калужская, 1, Московский государственный текстильный университет им. А.Н. Косыгина (72) Автор(ы): Кобраков Константин Иванович (RU), Капитанов Анатолий Федорович (RU), Баранова Елена Васильевна (RU), Папилин Николай Михайлович (RU) RU 5 ...

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Номер записи: 1
10-11-2016 дата публикации

УСТРОЙСТВО ШИРИТЕЛЬНОЕ ДЛЯ ЖГУТОВЫХ ГИДРАТЦЕЛЛЮЛОЗНЫХ ВОЛОКНИСТЫХ МАТЕРИАЛОВ

Номер: RU0000165956U1
Автор: Лазарев Михаил Николаевич, Озолин Александр Александрович
Принадлежит: Российская Федерация, от имени которой выступает Министерство промышленности и торговли Российской Федерации (Минпромторг России)

1. Устройство ширительное для жгутовых гидратцеллюлозных волокнистых материалов, характеризующееся тем, что на металлической раме с размещенным в её внутреннем пространстве узлом смотки подлежащего расправлению и расширению жгутовых гидратцеллюлозных волокнистых материалов жестко закреплена выполненная из металлического материала в форме уголка сварная каркасная рама прямоугольной коробчатой формы, в нижней части которой установлен узел расправления и расширения жгутовых гидратцеллюлозных волокнистых материалов, выполненный в виде установленной на подвижной оси с возможностью качания вверх-вниз рамки расправления и расширения жгутовых гидратцеллюлозных волокнистых материалов в однонаправленный ровинг с равномерной толщиной и поверхностной плотностью, выполненная в виде двух соединенных между собой равноплечих коромысел, плечи которых выполнены под углом 150°, причем сужающиеся концы равноплечих коромысел попарно соединены между собой параболически вогнутыми в направлении движения жгутовых гидратцеллюлозных волокнистых материалов дугами их расширения и расправления, при этом поверхность дуг расширения и расправления жгутовых гидратцеллюлозных волокнистых материалов выполнена с произвольной шероховатостью, а также содержит узел намотки полученного однонаправленного ровинга с равномерной толщиной и поверхностной плотностью перед его последующей пропиткой. 2. Устройство по п. 1, характеризующееся тем, что выполненная из металлического уголкового материала рама коробчатой формы имеет высоту 1500 мм, длину 1700 мм и ширину внутренней части 500 мм. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (51) МПК D02J 1/18 (11) (13) 165 956 U1 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ 2015145575/12, 11.02.2016 (24) Дата начала отсчета срока действия патента: 11.02.2016 (72) Автор(ы): Озолин Александр Александрович (RU), Лазарев Михаил Николаевич (RU) (45) Опубликовано: 10.11.2016 Стр.: 1 U 1 1 6 5 9 5 6 R U U 1 (54) ...

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Номер записи: 2
07-06-2012 дата публикации

Polyolefin member and method of manufacturing

Номер: US20120142834A1
Автор: Gijsbertus Hendrikus Maria Calis, Hendrik Derk Hoving
Принадлежит: DSM IP ASSETS BV

The invention concerns an improved process for producing high performance polyolefin member. The process comprises the steps of preparing a solution comprising a polyolefin and a solvent, extruding or spinning the solution into an air gap to form a fluid member, cooling the fluid member to form a solvent-containing gel member, and removing at least partly the solvent from the gel member to form a solid member before, during and/or after drawing the member. Furthermore, the process involves the presence of an antifoaming agent comprising an aryl sulphonic acid or an alkyl naphtyl sulphonic acid. The invention further concerns the geltruded polyolefin member comprising aryl sulphonic acid or alkyl naphtyl sulphonic acid.

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Номер записи: 3
07-02-2013 дата публикации

Poly-trimethylene terephthalate solid core fibrillation-resistant filament having a substantially triangular cross section, a spinneret for producing the filament, and a carpet made therefrom

Номер: US20130034658A1
Автор: Harry Vaughn Samuelson, Jing-Chung Chang, Kalika Ranjan Samant
Принадлежит: EI Du Pont de Nemours and Co

In a first aspect the invention is a solid core fibrillation-resistant, synthetic polymeric filament having three substantially equal length convex sides. The sides through substantially rounded tips centered by a distance “a” from the axis of the filament. Each rounded tip has a radius substantially equal to a length “b”. Each tip lies on a circumscribed circle having a radius substantially equal to a length (a+b) and the midpoint of each side lies on an inscribed circle having a radius substantially equal to a length “c”. The filament has a denier-per-filament in the range 10<“dpf”<35; the distance “a” lies in the range 0.00025 inches (6 micrometers)<“a”<0.004 inches (102 micrometers); the distance “b” lies in the range from 0.00008 inches (2 micrometers)<“b”<0.001 inches (24 micrometers); the distance “c” lies in the range from 0.0003 inches (8 micrometers)<“c”<0.0025 inches (64 micrometers); and the modification ratio (“MR”) lies in the range from about 1.1<“MR”<about 2.0. In still another aspect the present invention is directed to a spinneret plate having a plurality of orifices formed therein for forming the solid core fibrillation-resistant, synthetic polymeric filament. Each orifice has a center and three sides with each side terminating in a first and a second end point and with a midpoint therebetween. The sides can be either concave or linear connected by either a circular or a linear end contour.

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Номер записи: 4
14-02-2013 дата публикации

Polyester fiber and preparation method for the same

Номер: US20130040522A1
Автор: Dong-Jin Kwak, Hee-jun Kim, Jae-Hyung Kim, Jung-Hoon Youn, Ki-Jeong Kim, Sang-Mok Lee
Принадлежит: KOLON INDUSTRIES INC

The present invention relates to a polyester fiber applicable to an airbag fabric, and more particularly to a polyester fiber, a preparation method for the polyester fiber, and an airbag fabric prepared from the polyester fiber, where the polyester fiber has an elongation of 0.8 to 2.0% under a tensile strength of 1.0 g/d at the room temperature, and an additional elongation of 1.5 to 5% under a tensile strength of 8.8 g/d to the maximum. The polyester fiber of the present invention which secures low initial Young's modulus and good mechanical properties can be used in an airbag fabric not only to provide excellences in air sealing effect as well as packing property and dimensional stability but also to minimize collision impacts on occupants, thereby protecting the occupants with safety.

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Номер записи: 5
14-03-2013 дата публикации

Method for laying carbon nanotube film

Номер: US20130062001A1
Автор: Chen Feng, Kai-Li Jiang, Li Qian, LIANG Liu, Lin Xiao, Qun-Qing Li, Shou-Shan Fan, Yang Wei, Zhuo Chen
Принадлежит: Individual

A method for laying carbon nanotube film includes following steps. A carbon nanotube film is provided. The carbon nanotube film includes a number of carbon nanotube strings substantially parallel to each other and extending along a first direction. The carbon nanotube film is stretched along a second direction substantially perpendicular with the first direction to form a deformation along the second direction. The carbon nanotube film is placed on a surface of a substrate. The deformation along the second direction is kept.

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Номер записи: 6
25-07-2013 дата публикации

YARN TREATMENT CHAMBER

Номер: US20130186152A1
Автор: Brenk Siegfried, Rottgering Jan-Markus, Schnitzler Jurgen, Tetzlaff Georg
Принадлежит: Oerlikon Textile GmbH & Co. KG.

A yarn treatment chamber for thermal treatment of a running yarn, with a centre zone, in which a pressurized hot, gaseous or vaporous medium acts on the yarn, and end zones on both sides of the centre zone, in which a cooling, gaseous medium is active. The end zones have a yarn inlet or outlet openings with a yarn sluice, which seals the associated end zone and the yarn treatment chamber. The yarn inlet and outlet openings () are arranged such that the yarn () must change direction, and the yarn treatment chamber ( has yarn deflection means () to guide the yarn () between the yarn inlet and outlet openings (). Both the yarn sluice (A) and the yarn sluice (B) are accessible without problems to operating staff at an ergonomically favourable height below the yarn deflection means () of the yarn treatment chamber (). 12314211214232322331221. Yarn treatment chamber for the thermal treatment of a running yarn , with a centre zone , in which a hot , gaseous or vaporous medium under pressure acts on the yarn , and end zones arranged on both sides of the centre zone , in which a cooling , gaseous medium is active , the end zones each having a yarn inlet opening or a yarn outlet opening with a yarn sluice , which , in the operating state in conjunction with the running yarn , seals the associated end zone and therefore the yarn treatment chamber , characterised in that the yarn inlet opening () and the yarn outlet opening () are arranged in such a way that the running yarn () has to change its running direction , in that the yarn treatment chamber () , for this purpose , has yarn deflection means () to guide the yarn () fed through the yarn inlet opening () to the yarn outlet opening () and in that both the first yarn sluice (A) arranged in the region of the yarn inlet opening () and the second yarn sluice (B) arranged in the region of the yarn outlet opening () are arranged in a manner accessible without problems to the operating staff at an ergonomically favourable height ...

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Номер записи: 7
15-08-2013 дата публикации

PROCESS AND APPARATUS FOR MAKING ALTERNATE S/Z TWIST PLIED BRAID OR JOINED ALTERNATE S/Z TWIST PLIED YARNS

Номер: US20130205741A1
Автор: Claes Jeroen, Evenepoel Hans, Gilbos Erik, Vermandel Miguel
Принадлежит: GILBOS N.V.

The present invention provides an improved method and device for producing an alternate S/Z twist plied braid and joined alternate S/Z twist plied yarns. The invention further provides an alternate S/Z twist plied braid and joined alternate S/Z twist plied yarns produced according to a process of the invention. 2. The method according to claim 1 , wherein step c) comprises bringing together the alternately S/Z twisted strands via a narrowing claim 1 , in phase: all nodes coinciding claim 1 , and with zones of equal twist direction next to each other.3. The method according to claim 1 , wherein step g) comprises combining the alternate S/Z twist plied yarns via a narrowing in phase: all nodes coinciding claim 1 , and with zones of equal twist direction next to each other.5. The method according to claim 4 , wherein step m) comprises bringing together the alternately S/Z twist plied strandsvia a narrowing, in phase: all nodes coinciding, and with zones of equal twist direction next to each other.6. The method according to claim 4 , wherein step q) comprises combining the alternate S/Z twist plied yarns via a narrowing in counter phase: all nodes coinciding claim 4 , and with zones of opposite twist direction next to each other.7. The method according to claim 1 , wherein the tension of the alternate S/Z twist plied yarns is reduced in a controlled manner with a closed circuit system on the basis of the measured tension of the alternate S/Z twist plied braid respectively the joined alternate S/Z twist plied yarns.8. The method according to claim 1 , wherein the tension of the alternate S/Z twisted yarns is reduced in a controlled manner with a closed circuit system on the basis of the amount of yarn between the step of connecting the nodes of the alternate S/Z twist plied yarns (h claim 1 , r) claim 1 , and the step of leading away the yarn produced (j claim 1 , s).9. The method according to claim 1 , wherein the fibers or filaments of the alternate S/Z twisted yarns ...

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Номер записи: 8
26-09-2013 дата публикации

Device and Method for Producing Interweaving Knots

Номер: US20130247341A1
Автор: Stündl Mathias
Принадлежит: Oerlikon Textile GmbH & Co. KG

A device and a method for producing interweaving knots in a multifilament thread are described. The thread is guided in a circumferential guiding groove of a rotating annular nozzle in contact with the groove base of the guiding ring. An inlet thread guide and an outlet thread guide are arranged such that the contact wrap angle of the thread in the guiding groove of the annular nozzle is greater than the opening angle of the chamber opening on the stator. Thus, the thread is guided with contact before the pressure impulse is generated and the annular nozzle is preferably driven with a circumferential speed that is lower than the speed of the thread in order to influence the thread tension. 1. A device for producing interweaving knots in a multi-filament thread comprising:a stationary stator that includes (i) a chamber opening on its circumference and (ii) a pressure chamber;a rotating annular nozzle disposed about a circumference of the stator, the annular nozzle including a circumferential guiding groove and at least one nozzle bore that is at least intermittently in fluid communication with the chamber opening and the guiding groove;a cover extending over the guiding groove; andan inlet thread guide and an outlet thread guide arranged on both sides of the annular nozzle wherein the thread is guided with contact in a base of the guiding groove of the annular nozzle, such that an opening angle (α) of the chamber opening on the stator and a contact wrap angle (β) of the thread are overlapping in the guiding groove;wherein the inlet thread guide and the outlet thread guide are arranged in such a way that the contact wrap angle (β) of the thread in the guiding groove of the annular nozzle is greater than the opening angle (α) of the chamber opening on the stator.2. The device according to claim 1 , wherein the contact wrap angle (β) of the thread in the guiding groove of the annular nozzle is greater than the opening angle (α) of the chamber opening on the stator by at ...

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Номер записи: 9
10-10-2013 дата публикации

Device For Producing Interlaced Knots

Номер: US20130263414A1
Автор: Kaulitzki Marco, Matthies Claus, Stündl Mathias
Принадлежит:

A device for producing interlaced knots in a multifilament thread is described. The device includes a rotating nozzle ring having a circumferential guide groove and a plurality of nozzle bores opening radially into the base of the guide groove. A stationary pressure chamber, having a chamber opening and an air connection, is associated with the nozzle ring, wherein by rotation of the nozzle ring the nozzle bores can be connected in turn to the chamber opening of the pressure chamber. To permit an intensive air treatment of the thread, the dimension of the chamber opening in the pressure chamber and the spacing of adjacent nozzle bores on the nozzle ring are designed such that as the nozzle ring rotates a plurality of nozzle bores are simultaneously connected to the chamber opening. 1. A device for producing interlaced knots in a multifilament thread comprising:a. a nozzle ring, which includes a circumferential guide groove and a plurality of spaced apart nozzle bores opening radially onto a groove base of the guide groove;b. a stationary pressure chamber associated with the nozzle ring and including an air connection; and,c. a chamber aperture that extends radially over the stationary pressure chamber an amount defined by an aperture angle (α),wherein the chamber aperture and the nozzle bores are configured such that, upon rotation of the nozzle ring, at least two nozzle bores are simultaneously fluidly connected with the chamber aperture.2. The device according to further comprising an input thread guide on a first side of the nozzle ring and an output thread guide on a second side of the nozzle ring claim 1 , wherein the input thread guide and the output thread are configured to guide the thread into contact with the groove base of the guide groove of the nozzle ring such that a contact length of the thread in the groove base defines a contact wrap angle (β).3. The device according to claim 2 , wherein the aperture angle (α) and the contact wrap angle (β) overlap ...

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Номер записи: 10
07-11-2013 дата публикации

SEWING THREAD AND ITS MANUFACTURE

Номер: US20130291286A1
Автор: Kobsa Bernhard, Stuckey William C.
Принадлежит: COATS PLC

A method of manufacturing textured thread textured thread comprises the steps of: processing textured yarn having a zero or near-zero twist by applying a singles twist thereto; plying at least two textured yarns together by twisting them in a direction opposing the singles twist; wherein the singles twists lie in the range 4 to 20 turns per inch and the plying twist lies in the range 2 to 18 turns per inch. 1. A method of manufacturing textured thread textured thread comprising the steps of:processing textured yarn having a zero or near-zero twist by applying a singles twist thereto;plying at least two textured yarns together by twisting them in a direction opposing the singles twist;wherein the singles twists lie in the range 4 to 20 turns per inch and the plying twist lies in the range 2 to 18 turns per inch.2. A method according to wherein the textured yarn is produced with a false twist.3. A method according to wherein the textured yarn is produced by the application of pressured air.4. A method according to wherein the textured yarn is processed at a speed which is lower than for standard continuous filament thread of the same weight.5. A method according to wherein claim 4 , for thread weights of between 18 and 120 Tex claim 4 , the textured yarn is processed at between 82 and 95% of the speed at which continuous filament yarns of the same weight are processed.6. A method according to wherein the textured yarn is processed at a tension which is lower than for standard continuous filament yarns of the same weight.7. A method according to wherein claim 6 , for thread weights of between 18 and 70 Tex claim 6 , the plying step takes place at a tension of between 65% and 40% of the tension for continuous filament thread of the same weight.8. A textured thread comprising a plurality of textured yarns plied together claim 6 , wherein each textured yarn has a twist of 4 to 20 turns per inch and the textured yarns are plied together with an opposing twist of 2 to 18 ...

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Номер записи: 11
13-02-2014 дата публикации

APPARATUS FOR MANUFACTURING OPENING MATTER OF LONG-SIZED FIBER TOW

Номер: US20140041172A1
Автор: Morioka Toshiyuki, SHIGEMATSU Masato
Принадлежит: Daicel Corporation

[Means for Solution] A preliminary opening unit , an opening unit and a swelling/shaping unit are connected so as to form a communicated space for delivering a fiber tow continuously. A fiber tow is contacted with a particulate additive in a nozzle of the opening unit (), is opened in an opening zones Z and Z, is swollen and shaped in the swelling/shaping unit for obtaining a long-sized opening matter in which the fiber tow opening matter and the particulate additive are integrated. 1. A manufacturing apparatus for manufacturing an opening matter of long-sized fiber tow ,the manufacturing apparatus comprising:{'b': '1', 'a preliminary opening unit () having at least one pair of rolls,'}{'b': 2', '1, 'an opening unit () connected to the preliminary opening unit (), and'}{'b': 3', '1, 'a swelling/shaping unit () connected to the preliminary opening unit ();'}{'b': 1', '2', '3', '10, 'the preliminary opening unit (), the opening unit () and the swelling/shaping unit () being connected so as to form a communicated space for delivering a fiber tow () continuously;'}{'b': '2', 'the opening unit () including{'b': '20', 'an adding part () of particulate additives, and'}{'b': 30', '20, 'an opening part () connected to the adding part ();'}{'b': 30', '31', '20', '21', '31', '3', '32', '35', '20', '31', '31, 'i': 'b', 'the opening part () including a cylindrical body part () being opened to both ends, where an opening on one end side (the adding part () side) being connected to an adding part body (), and an opening part () at the other end being connected to the swelling/shaping unit (), a nozzle part () having nozzles (), inside the adding part () of the body part (), which are arranged at regular intervals with an inner peripheral surface of the body part (), and'}{'b': 36', '31', '32', '31, 'a gas supplying pore () which is provided so as to communicate the inside and outside of the body part () and which is opened to face a gap between the nozzle part () and the body part ...

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Номер записи: 12
13-03-2014 дата публикации

METHOD AND APPARATUS FOR PRODUCING INTERTWINED KNOTS IN A MULTIFILAMENT THREAD

Номер: US20140068902A1
Автор: Matthies Claus, Stündl Mathias
Принадлежит:

A method and an apparatus produces intertwining knots in a multifilament thread. In this case, an air-stream pulse is directed through a nozzle opening transversely onto the thread. In order to produce a continuous succession of intertwining knots, the air-stream pulse is produced periodically with an interval between the air-stream pulses. In order to be able to produce an irregular thread structure, the interval between successive air-stream pulses is continuously changed. To this end, the apparatus has a nozzle ring carrying the nozzle opening, the nozzle ring being coupled to a drive. The drive of the nozzle ring is assigned a control device, by way of which a rotary speed of the nozzle ring is controllable for the purpose of changing an interval between the air-stream pulses. 1. Method for producing intertwined knots in a multifilament thread , in which an air flow pulse is directed transversely onto the thread through a nozzle opening , and in which the air flow pulse is generated periodically with a pause time between the air flow pulses so that a continuous sequence of intertwined knots results in the running thread , wherein the pause time between successive air flow pulses for producing intertwined knots is continuously changed.2. Method according to claim 1 , wherein the pause time between the air flow pulses is changed by a rotational speed of a driven nozzle ring claim 1 , the nozzle ring bearing the nozzle opening and periodically connecting same to a pressure source by rotation.3. Method according to claim 1 , wherein the pause time between the air flow pulses is changed by an asymmetrical geometric configuration of multiple nozzle openings formed on a rotating nozzle ring claim 1 , the nozzle openings being connected one after another to a pressure source by rotating the nozzle ring.4. Method according to claim 1 , wherein (i) the pause time between the air flow pulses and (ii) the intensity of the air flow pulses are changed by geometric shapes of ...

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Номер записи: 13
03-04-2014 дата публикации

APPARATUS FOR PRODUCING ENTANGLEMENTS ON A MULTIFILAMENT THREAD

Номер: US20140090220A1
Автор: Matthies Claus, Westphal Jan
Принадлежит:

An apparatus for producing entanglements on a multifilament thread, has a treatment channel, has a nozzle bore that opens into the treatment channel and has an air supply device. The air supply device interacts with the nozzle bore in order to produce pulse-like compressed-air flows, wherein the compressed air is produced via a pressure chamber and a pressure source. In order in particular to control the pressure pulses produced in the pressure chamber, a volume store is arranged between the pressure chamber and the pressure source, wherein the volume store has a storage volume which is greater than a chamber volume of the pressure chamber. 1. Apparatus for producing entanglements on a multifilament thread , having a treatment channel , having a nozzle bore that opens into the treatment channel and having an air supply device which interacts with the nozzle bore in order to produce pulse-like compressed-air flows and which has a pressure chamber which is connected to a pressure source ,wherein a volume store is arranged between the pressure chamber and the pressure source, andwherein the volume store has a storage volume which is greater than a chamber volume of the pressure chamber.2. Apparatus according to claim 1 , wherein the storage volume of the volume store is greater by a multiple claim 1 , preferably by a factor>20 claim 1 , than the chamber volume of the pressure chamber.3. Apparatus according to claim 1 , wherein a pressure regulator is arranged between the pressure source and the volume store.4. Apparatus according to claim 1 , wherein the volume store is formed by at least one of a pressure vessel and a line section.5. Apparatus according to claim 1 , wherein the pressure chamber and the volume store are connected by a short connection line having a length of less than 0.3 m.6. Apparatus according to claim 1 , wherein the air supply device has a rotating nozzle ring having a circumferential guide groove claim 1 ,wherein the nozzle bore opens into the ...

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Номер записи: 14
02-01-2020 дата публикации

MANUFACTURING OF ARTIFICIAL MUSCLE ACTUATORS

Номер: US20200000572A1
Автор: Li Sergey, LIMA Marcio Dias
Принадлежит: Lintec Of America, Inc.

Methods and a device for the continuous manufacturing of artificial muscle actuator device fibers are disclosed. The method includes: threading an untwisted fiber along the axis of a tube and inside the tube that includes a heating means to raise the localized temperature of a cross-section of the tube to a predetermined temperature; providing a tension on the untwisted fiber; and twisting the untwisted fiber while the fiber is within the tube. 1. A method of manufacturing an artificial muscle actuator fiber , the method comprising: threading an untwisted fiber along the axis of a tube and inside the tube;', 'providing a tension on the untwisted fiber; and', 'twisting the untwisted fiber while the fiber is within the tube,', 'wherein the tube comprises a heating means to raise the localized temperature of', 'a cross-section of the tube to a predetermined temperature., 'in a continuous process,'}2. The method of claim 1 , wherein the predetermined temperature is greater than the glass transition temperature of the fiber and less than the melting temperature of the fiber.3. The method of claim 1 , wherein the twisting of the untwisted fiber forms a coiled fiber inside the tube.4. The method of claim 1 , wherein the untwisted fiber comprises a polymer fiber selected from the group consisting of Nylon 6 claim 1 , Nylon 6 claim 1 ,6 claim 1 , polyethylene claim 1 , polyvinylidene fluoride claim 1 , Nylon 6 claim 1 ,10 claim 1 , Nylon 6 claim 1 ,12 claim 1 , liquid crystalline polymers claim 1 , polyarylate claim 1 , and combinations thereof.5. The method of claim 1 , wherein the untwisted fiber comprises carbon nanotubes (CNT).6. The method of claim 1 , further comprising: applying a coating to the twisted or untwisted fiber.7. The method of claim 1 , further comprising: applying a coating to the fiber while the fiber is inside the tube.8. The method of claim 1 , further comprising: removing moisture from the untwisted fiber prior to threading the untwisted fiber along ...

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Номер записи: 15
07-01-2016 дата публикации

DEVICE FOR PNEUMATICALLY CONVEYING AND GUIDING A MULTIFILAMENT THREAD

Номер: US20160002830A1
Автор: Stündl Mathias
Принадлежит:

A device for pneumatically conveying and guiding a multifilament thread has a closed conveying channel which has a thread inlet opening at one end and a thread outlet opening at the opposite end. An injector zone having at least one compressed air channel which opens into the conveying channel is formed between the thread inlet opening and the thread outlet opening, wherein the compressed air channel can be connected to a compressed air source. In order to avoid blowing air from flowing back from the injector zone at the thread inlet opening, a return flow channel is formed in a channel section of the conveying channel between the thread inlet opening and the opening of the compressed air channel, which return flow channel connects the conveying channel to ambient atmosphere. 1. A device for pneumatically conveying and guiding a multifilament synthetic thread by way of a closed conveying duct which at one end has a thread inlet opening and at the opposite end has a thread outlet opening and which between the thread inlet opening and the thread outlet opening has an injector zone having at least one compressed-air duct which opens into the conveying duct , wherein the compressed-air duct is connectable to a compressed-air source , and wherein a return stream duct opens into a duct portion of the conveying duct , between the thread inlet opening and a mouth of the compressed-air duct , the return stream duct connecting the conveying duct to an ambient atmosphere.2. The device as claimed in claim 1 , wherein the return stream duct opens out having an inclination in a conveying direction of the conveying duct.3. The device as claimed in claim 2 , wherein the inclination of the return stream duct is defined by an angle in the range of 5° to 40° between the return stream duct and the duct portion of the conveying duct between the thread inlet opening and the mouth of the compressed-air duct.4. The device as claimed in claim 2 , wherein the return stream duct and the ...

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Номер записи: 16
04-01-2018 дата публикации

EASILY SETTABLE STRETCH FABRICS INCLUDING LOW-MELT FIBER

Номер: US20180002839A1
Автор: ALCOTT Brian Scott, HIETPAS Geoffrey D., Liao Tianyi
Принадлежит: INVISTA NORTH AMERICA S.A R.L.

The present invention provides an easy settable stretch fabric comprising three types of yarns: a rigid fiber, an elastic fiber, and a low-melt fiber, wherein the low-melt fiber comprises low-melt polymer which can be fused in the temperature between 60° C. to 200° C., being higher than the temperature used for normal textile process and household laundry, but lower than the temperature used for heat setting elastic fiber. The low-melt fiber can be selected from a group of fibers made from modified polyester, nylon, and polypropylene and the copolymer from them in the form of staple or filament. 1. An elastic fabric with easy set and shape enhance property , comprising a first type of fibers , a second type of fibers , and a third type of fibers; said first type of fibers being rigid fibers , said second of fibers being elastic fibers , and said third of fibers being low-melt fibers; Said rigid fiber forming the main body of the fabrics; whereini) the low-melt fiber comprises a low melt polymer selected from the group consisting of polyester, polyamide, polyolefin and polypropylene;ii) The melting temperature of the low-melt fiber is between about 60° C. to 200° C.;iii) the content of low-melt fibers is no less than 0.5% and no higher than 55% of the fabric weight;2. The fabric of claim 1 , wherein said low-melt fiber is a filament from 10 denier to 450 denier;3. The fabric of claim 1 , wherein said low-melt fiber is a staple fiber with denier from 0.5 denier to 10 denier;4. The fabric of claim 1 , wherein said low-melt fiber is monopolymer;5. The fabric of claim 1 , wherein said low-melt fiber is bi-component;6. The fabric of claim 1 , wherein said low-melt fiber is bi-component filament with sheath core structure claim 1 , wherein the sheath comprising low-melt polymer. The filament denier is higher than 10 denier claim 1 , but no higher than 450 denier.7. The fabric in claim 1 , where the melting temperature of low-melt fiber is about 100° C. to about 185° C.8. ...

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Номер записи: 17
07-01-2021 дата публикации

RIBBON YARN

Номер: US20210002795A1
Автор: Bongartz Marianne, Cziollek Joachim, Flachenecker Andreas, Thienel Alexander, Vieth Christian
Принадлежит:

Described is a ribbon yarn made of multifilament yarns based on polyamide and/or polyester, wherein not more than 5 filaments overlie one another within the ribbon yarn, wherein the ribbon yarn is fixed by the formation of a matrix comprising one or more fixing agents, wherein the one or more fixing agents are selected from a group consisting of copolyamides, copolyesters, silicones, and mixtures or blends thereof. 1. A ribbon yarn comprising multifilament yarns based on polyamide and/or polyester ,wherein not more than 5 filaments overlie one another within the ribbon yarn, 'wherein the one or more fixing agents are selected from a group consisting of copolyamides, copolyesters, silicones, and mixtures or blends thereof.', 'wherein the ribbon yarn is fixed by the formation of a matrix comprising one or more fixing agents,'}2. The ribbon yarn according to claim 1 , wherein not more than three filaments overlie one another.3. An airbag fabric comprising the ribbon yarn according to .4. The airbag fabric according to claim 3 , wherein the fabric is unsized claim 3 , unwashed claim 3 , and/or uncoated.5. A tire reinforcement comprising the ribbon yarn according to claim 1 , wherein the tire reinforcement optionally comprises at least one adhesion promoter.6. A textile claim 1 , wherein the textile comprises the ribbon yarn according to .7. The ribbon yarn according to claim 1 , wherein the matrix consists of the one or more fixing agents.8. The ribbon yarn according to claim 1 , wherein the individual filaments forming the multifilament yarn are aligned parallel and are side-by-side.9. The ribbon yarn according to claim 1 , wherein the ribbon yarn is suitable for use in an airbag. This is a Division of application Ser. No. 14/377,636 filed Aug. 8, 2014, which in turn is a National Stage Application of PCT Application No. PCT/EP2013/052596 filed Feb. 8, 2013, which claims the benefit of European Patent Application No. 12154856.4 filed Feb. 10, 2012. The disclosure of ...

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Номер записи: 18
27-01-2022 дата публикации

On-line drying of hollow fiber membranes

Номер: US20220023803A1
Автор: Arnd Wochner, Bernd Krause, Helmut Hildwein, Juergen Graf, Markus Storr, Reinhold Buck, Ulrich Bauer
Принадлежит: GAMBRO LUNDIA AB

The present invention relates to a continuous process for preparing permselective hollow fiber membranes being suitable e.g. for hemodialysis, hemodiafiltration and hemofiltration of blood which comprises a two-stage drying and tempering treatment of the hollow fiber membranes. According to a further aspect, the invention relates to a continuous process for drying permselective hollow fiber membranes on-line. The invention also relates to devices for on-line drying of permselective hollow fiber membranes.

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Номер записи: 19
14-01-2021 дата публикации

METHODS OF SEPARATING CARBON FIBER TOWS

Номер: US20210010168A1
Автор: Johnston, VII Christopher
Принадлежит:

A method of separating carbon fiber tows. The method includes separating two or more first carbon fiber tows from a first tow band onto a second elevation to form two or more second carbon fiber tows from a second tow band. The two or more second carbon fiber tows from the second tow band leave gaps next to first adjacent tows of the two or more first carbon fiber tows remaining from the first tow band after the separating step. The first adjacent tows from the first tow band leave gaps next to second adjacent tows of the two or more second carbon fiber tows from the second tow band. 139-. (canceled)40. A method comprising:separating two or more first carbon fiber tows from a first tow band onto a second elevation to form two or more second carbon fiber tows from a second tow band, the two or more second carbon fiber tows from the second tow band leave gaps next to first adjacent tows of the two or more first carbon fiber tows remaining from the first tow band after the separating step, the first adjacent tows from the first tow band leave gaps next to second adjacent tows of the two or more second carbon fiber tows from the second tow band.41. The method of claim 40 , wherein the separating step is performed in-line with a carbon fiber carbonization process.42. The method of claim 40 , wherein the separating step reduces the filament density of one or both of the first and second tow bands by at least 50%.43. The method of claim 40 , wherein the filament density of one or both of the first and second tow bands is less than or equal to 1000 filaments/mm.44. The method of further comprising spreading one or both of the first and second tow bands to eliminate one or more of the gaps between the tows of the one or both of the first and second tow bands.45. The method of claim 44 , wherein one or both of the first and second tow bands are stabilized and/or spooled after the separating step.46. The method of claim 44 , wherein one or both of the first and second tow ...

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Номер записи: 20
10-01-2019 дата публикации

DEVICE AND METHOD FOR SPREADING A FIBER BUNDLE

Номер: US20190010630A1
Автор: Breckner Torsten, Fichtner Stephan, Hartmann Peter, Rossner Martin, Schmidt Roland, Seuß Rainer
Принадлежит:

Described are a device and a method for spreading a fibre bundle. In the case of the device, the fibre bundle is fed from a fibre bundle supply to a fibre consumer by way of a resistance having a first impulse drive that interacts with said resistance said fibre consumer being disposed downstream of said resistance The fibre bundle by means of the impulse drive during spreading is impingeable in an alternating manner in predefinable sequences with an additional speed component in the conveying direction of said fibre bundle and/or with an additional speed component counter to the conveying direction. 1. Device for spreading a fibre bundle which is feedable from a fibre bundle supply to a fibre consumer , by way of a resistance and of at least one first impulse drive that interacts with the resistance ,characterized in thatthe fibre bundle by means of the impulse drive during spreading is impingeable in an alternating manner in predefinable sequences with an additional speed component in the conveying direction of said fibre bundle and with an additional speed component counter to the conveying direction, or said fibre bundle during spreading is impingeable in predefined sequences with an additional speed component only in the conveying direction of the fibre bundle, or is impingeable in predefinable sequences only counter to the conveying direction of the fibre bundle.2. Device according to claim 1 , characterized in that the predefinable sequences of the additional speed components by means of a control installation for the impulse drive for achieving a predefinable weight per unit area are variable in terms of the frequencies and/or amplitudes of said sequences.3. Device according to claim 1 , characterized in that the resistance has at least one spreading rod that is disposed so as to be deflected transversely to the conveying direction of the fibre bundle claim 1 , the fibre bundle being guidable by way of a defined wrapping angle over said spreading rod claim 1 ...

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Номер записи: 21
17-01-2019 дата публикации

METHOD FOR MANUFACTURING FIBER REINFORCED RESIN MATERIAL AND APPARATUS FOR MANUFACTURING FIBER REINFORCED RESIN MATERIAL

Номер: US20190016102A1
Автор: KANEHAGI Junji, MIZUTORI Yukihiro, Samejima Tadao, Watanabe Yasushi
Принадлежит: MITSUBISHI CHEMICAL CORPORATION

The present invention provides a method for manufacturing a fiber reinforced resin material, the method including an opening step of opening an elongated fiber bundle to be widened in a width direction thereof to be put into a flat state; and a heat setting step of heat-setting the opened fiber bundle in the flat state by heating. In addition, the present invention provides an apparatus for manufacturing a fiber reinforced resin material containing a plurality of fiber bundles and a resin, the apparatus including an opening section that opens an elongated fiber bundle to be widened in a width direction thereof to be put into a flat state; and a heat setting section that heat-sets the opened fiber bundle in the flat state by heating. 1. A method for manufacturing a fiber reinforced resin material , the method comprising:an opening step of opening an elongated fiber bundle to be widened in a width direction thereof to be put into a flat state; anda heat setting step of heat-setting the opened fiber bundle in the flat state by heating.2. The method for manufacturing a fiber reinforced resin material according to claim 1 , wherein a fiber bundle attached with a resin is used as the fiber bundle.3. The method for manufacturing a fiber reinforced resin material according to claim 1 , wherein a fiber bundle attached with a sizing agent is used as the fiber bundle.4. The method for manufacturing a fiber reinforced resin material according to claim 1 , further comprising a separating step of separating the opened fiber bundle to be divided in the width direction between the opening step and the heat setting step.5. The method for manufacturing a fiber reinforced resin material according to claim 1 , wherein the method is a method for manufacturing a fiber reinforced resin material containing a plurality of fiber bundles and a resin and includes a step of continuously cutting the fiber bundle after the heat setting step.6. The method for manufacturing a fiber reinforced resin ...

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Номер записи: 22
18-01-2018 дата публикации

HIGH TENACITY HIGH MODULUS UHMWPE FIBER AND THE PROCESS OF MAKING

Номер: US20180016710A1
Автор: ARDIFF HENRY GERARD, Klein Ralf, TALLENT MARK, Tam Thomas, YOUNG JOHN ARMSTRONG
Принадлежит: HONEYWELL INTERNATIONAL INC.

Processes for preparing ultra-high molecular weight polyethylene (“UHMW PE”) filaments and multi-filament yarns, and the yarns and articles produced therefrom. Each process produces UHMW PE yarns having tenacities of 45 g/denier to 60 g/denier or more at commercially viable throughput rates. 120-. (canceled)21. An ultra-high molecular weight polyethylene (UHMW PE) multi-filament yarn fabricated from a UHMW PE polymer having an intrinsic viscosity of at least about 21 dl/g and having a yarn intrinsic viscosity that exceeds 90% relative to the intrinsic viscosity of the UHMW PE polymer , wherein said intrinsic viscosities are measured in decalin at 135° C. according to ASTM D1601-99.22. The yarn of wherein the yarn is fabricated from a UHMW PE polymer having a ratio of weight average molecular weight to number average molecular weight (M/M) of 3 or less.23. The yarn of wherein the yarn intrinsic viscosity exceeds 95% relative to the intrinsic viscosity of the UHMW PE polymer claim 21 , and wherein said yarn is fabricated from a UHMW PE polymer having an intrinsic viscosity of at least 21 dl/g.24. The yarn of wherein said yarn is fabricated from a UHMW PE polymer having an intrinsic viscosity of greater than 21 dl/g claim 21 , and wherein the yarn intrinsic viscosity is at least 21 dl/g.25. The yarn of wherein said yarn is fabricated from a UHMW PE polymer having an intrinsic viscosity of from 30 dl/g to about 100 dl/g claim 21 , and wherein the yarn intrinsic viscosity is at least 28 dl/g.26. A composite formed from a plurality of yarns of .27. The composite of wherein said composite is non-woven and wherein said yarns are substantially coated with a polymeric binder.28. The yarn of wherein the yarn is fabricated from a UHMW PE polymer having an intrinsic viscosity of from 45 dl/g to about 100 dl/g claim 21 , and wherein the UHMW PE polymer has a ratio of weight average molecular weight to number average molecular weight (M/M) of 3 or less.29. The yarn of wherein the ...

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Номер записи: 23
17-01-2019 дата публикации

MACHINE FOR MANUFACTURING ARTIFICIAL TURF

Номер: US20190017206A1
Автор: Jansen Bernd, LESZINSKI Thomas, SANDER Dirk, SICK Stephan
Принадлежит: Polytex Sportbelage Produktions-GmbH

A machine for manufacturing artificial turf includes a fiber inserter configured to incorporate artificial turf fiber into an artificial turf backing to form the artificial turf. The artificial turf includes an underside and an artificial turf surface. The machine further includes a coater configured to coat the underside with a colloidal latex coating. The colloidal latex coating has an exposed surface. The machine further includes an applicator configured to welt an exposed surface of the colloidal latex coating with an anti-blistering agent. The machine further includes a heater configured to heat the underside to cure the colloidal latex coating into a solid latex coating. 124-. (canceled)25. A machine for manufacturing artificial turf , wherein the machine comprises:a fiber inserter configured for incorporating artificial turf fiber into an artificial turf backing to form the artificial turf, wherein the artificial turf comprises an underside and an artificial turf surface;a coater configured for coating the underside with a colloidal latex coating, wherein the colloidal latex coating has an exposed surface;an applicator configured for wetting the exposed surface of the colloidal latex coating with an anti-blistering agent, wherein the applicator is configured for spraying, or atomizing, or aerosoling the anti-blistering agent onto the exposed surface; anda heater configured for heating the underside to cure the colloidal latex coating into a solid latex coating.26. The machine of claim 25 , wherein the coater comprises a lick roll or the coater comprises a dispenser configured for dispensing the colloidal latex with a knife over roll applicator for leveling the dispensed colloidal latex.27. The machine of claim 25 , wherein the heater comprises a first heat control element for maintaining a first temperature range across the underside claim 25 , wherein the heater comprises a second heat control element for maintaining a second temperature range across the ...

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Номер записи: 24
21-01-2021 дата публикации

METHOD FOR PRODUCING FIBER-REINFORCED RESIN MOLDING MATERIAL, AND APPARATUS FOR PRODUCING FIBER-REINFORCED RESIN MOLDING MATERIAL

Номер: US20210017670A1
Автор: KANEHAGI Junji, MIZUTORI Yukihiro, Samejima Tadao
Принадлежит: MITSUBISHI CHEMICAL CORPORATION

What is provided is a method for stably producing a fiber-reinforced resin molding material by splitting a fiber bundle such that a split portion becomes long while anon-split portion is shortened. A method for producing a fiber-reinforced resin molding material in which a cut fiber bundle is impregnated with a resin, the method comprising a splitting step of splitting the fiber bundle with a splitting machine at intervals in a longitudinal direction and a cutting step of cutting the fiber bundle at intervals in the longitudinal direction after the splitting step, in which the splitting machine comprises a rotary blade having a releasing section and a spacer member adjacent to the rotary blade. 1. A splitting machine for splitting a fiber bundle at intervals in a longitudinal direction thereof , the splitting machine comprising a rotary blade for intermittently thrusting through the fiber bundle and a spacer member which is arranged adjacent to and rotates together with the rotary blade , wherein:a cut-off portion is formed in the rotary blade to serve as a releasing section which is not allowed to thrust through the fiber bundle, such that the rotary blade has an outer circumference of a cut-off circle shape; anda length x (mm) and a length y (mm) satisfy x>2y, where the length x is a length of the outer circumference of a portion of the rotary blade other than the cut-off portion, and the length y (mm) is a length obtained by subtracting the length x from a length (mm) of an entire circumference of the rotary blade assumed to be in a state of not having the cut-off portion.2. The splitting machine according to claim 1 ,wherein the number of the cut-off portion formed in the rotary blade is one.3. The splitting machine according to claim 1 ,wherein the cut-off portion has a cut-off angle α (°) and the cut-off angle α satisfies 100≤α≤200.4. The splitting machine according to claim 3 ,wherein the cut-off angle α (°) is 180.5. The splitting machine according to claim ...

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Номер записи: 25
21-01-2021 дата публикации

METHOD FOR MANUFACTURING A MULTI-PLY SEPARABLE FILAMENT YARNS AND MULTI-PLY SEPARABLE TEXTURED YARN

Номер: US20210017677A1
Автор: Gupta Ronak Rajendra
Принадлежит:

A method of manufacturing multi-ply separable textured yarn, the method comprising, passing a multi-ply separable interlaced filament yarn through a texturizing unit to form a multi-ply separable draw textured yarn, wherein the multi-ply separable interlaced filament yarn is separable in to at least two separable interlaced filament yarn, wherein the interlacing 10 of the filaments within each separable interlaced filament yarn is retained during further processing of the yarn to fabric and in the fabric. 1. A high thread/yarn count woven textile fabric comprising:a plurality of warps, anda plurality of wefts,wherein at least one group of separable draw textured yarns are woven in groups together in a weft, wherein each said weft comprises multiple picks,wherein the at least one group of separable draw textured yarns comprises at least two separable draw textured yarns,wherein the at least one group of separable draw textured yarns is made by entering an input of two or more interlaced multi-filament yarns into a texturizing unit, wherein each of the interlaced multi-filament yarns has interlacing strong enough to maintain separability during and after texturizing,; and exiting a group of separable draw textured yarns from the texturizing unit, wherein the group of separable draw textured yarns is separable into the same number of separable draw textured yarns as the number of separable interlaced multi-filament yarns in the input.2. The high thread/yarn count woven textile fabric of claim 1 ,wherein the warp consists of about 50 to 240 ends per inch,wherein the weft consists of about 200 to 3000 picks per inch of separable draw textured yarn picks woven in groups, andwherein the weft consists of at least two separable draw textured yarns of denier range of about 3 to 32 woven in groups.3. The high thread/yarn count woven textile fabric of claim 1 , wherein the high thread/yarn count woven textile fabric comprises a bed sheet.4. A high thread/yarn count woven ...

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Номер записи: 26
16-01-2020 дата публикации

YARN TEXTURIZING APPARATUS AND METHOD

Номер: US20200017998A1
Автор: BEAVERS LARRY ALDON, PLEMMONS JOE
Принадлежит:

A yarn texturizing apparatus and method for texturizing a plurality of yarns, which can include a tack assembly and a jet box assembly. The tack assembly can be configured to receive a bundle of yarns and impart a plurality of twists to each bundle of yarns and subsequently impart a first tack point at a point corresponding to a twist reversal between the twists. The downstream jet box assembly can be configured to place a plurality of additional tack points intermittently along the plurality of twists of each bundle of yarn. 1. A method for texturizing a plurality of yarns , comprising:imparting a plurality of twists to a bundle of yarns, wherein the bundle of yarns comprises at least two yarns, wherein the plurality of twists comprises at least a first twist and a second twist;sequentially setting a plurality of tack points on the bundle of yarns, each tack point being positioned at a point corresponding to a twist reversal between the first and second twists; andsequentially setting a plurality of additional tack points on the bundle of yarns, each additional tack point being positioned intermittently along the respective first and second twists of the bundle of yarns.2. The method of claim 1 , wherein at least one of the additional tack points on the bundle of yarns is positioned between sequential twist reversals.3. The method of claim 1 , wherein a tack assembly receives the bundle of yarns and sets the plurality of tack points onto the bundle of yarns claim 1 , wherein a nip roller is located downstream of the tack assembly along a yarn path claim 1 , wherein the nip roller pulls the bundle of yarns through the tack assembly at a selectively adjustable speed claim 1 , wherein a jet box assembly is positioned downstream of the nip roller relative to the yarn path claim 1 , wherein the jet box assembly sets the plurality of additional tack points onto the bundle of yarns claim 1 , wherein a pull roller assembly is positioned downstream of the jet box assembly ...

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Номер записи: 27
23-01-2020 дата публикации

Fast Torsional Artificial Muscles from Twisted Yarns of Shape Memory Material

Номер: US20200022803A1
Автор: HUNTER Ian W., Mirvakili Seyed M.
Принадлежит:

A torsional actuator formed of a yarn of twisted shape memory material. The yarn has multiple strands of homogeneous shape memory material that have been homochirally twisted. For torsional actuation, a fractional portion of the yarn is heated such as by Joule heating. Various Joule heating mechanisms include passing an electrical current through an unwound segment of the yarn, or by coating a fractional portion of the length of each homogeneous strand with a coating material of higher electrical conductivity than the electrical conductivity of the shape memory material an passing current through the length of the yarn. The shape memory material may be a shape memory alloy such as a NiTi alloy. 1. A torsional actuator comprising:a yarn comprising a homochirally twisted plurality of homogeneous strands of shape memory material; anda controller for programmable heating of at least a portion of the yarn.2. A torsional actuator in accordance with claim 1 , wherein the programmable heating includes Joule heating.3. A torsional actuator in accordance with claim 2 , wherein the Joule heating includes electrical current flow traversing an entire length of the yarn.4. A torsional actuator in accordance with claim 1 , wherein a fractional portion of a length of each homogeneous strand is coated with a coating material of higher electrical conductivity than the an electrical conductivity of the shape memory material.5. A torsional actuator in accordance with claim 1 , wherein the homochirally twisted plurality of homogeneous strands includes at least two strands of shape memory alloy.6. A torsional actuator in accordance with claim 5 , wherein the shape memory alloy includes an alloy comprising nickel and titanium.7. A torsional actuator in accordance with claim 1 , wherein the shape memory material is nitinol microwire.8. A method for torsional actuation claim 1 , the method comprising differentially heating portions of a twisted yarn comprising homochirally twisted ...

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Номер записи: 28
02-02-2017 дата публикации

METHOD FOR PREPARING MACROSCOPIC FIBRES OF TiO2 BY CONTINUOUS ONE-WAY EXTRUSION, FIBRES OBTAINED AND USES

Номер: US20170029979A1
Автор: Backov Renal, KINADJIAN Natacha, LACOMBE-LHOSTE Sylvie, LE BECHEC Mickael, NERI Wilfrid, POULIN Philippe
Принадлежит:

The invention relates to a method for manufacturing macroscopic fibres of titanium dioxide (TiO) by continuous extrusion in a one-way flow, to the macroscopic fibres of TiOthat can be obtained by such a method, to the use of said fibres in heterogeneous photocatalysis for decontamination of organic pollutants from gaseous environments, and to a method for decontaminating gaseous environments, in particular air, using such fibres. 1. A process for preparing a titanium dioxide macroscopic fiber continuously comprising the following steps:i) the preparation of a dispersion of titanium dioxide nanoparticles in a solution of at least one vinyl alcohol polymer dissolved in a solvent,ii) the continuous and unidirectional extrusion of the dispersion obtained above in the preceding step in a coagulation bath suitable for giving rise to the solidification of said polymer, said extrusion being carried out by means of a, or a set of, cylindrical injection needle(s) having a diameter between 250 and 350 μm, in order to form a pre-fiber made of a composite material comprising the titanium dioxide nanoparticles and the solidified vinyl alcohol polymer,iii) the continuous extraction of the pre-fiber formed above in step ii) out of the coagulation bath, said extraction being carried out coaxially relative to the axis of extrusion of the dispersion in said coagulation bath,iv) the continuous washing of the pre-fiber extracted from the coagulation bath,v) the continuous drying of the pre-fiber from the preceding step in order to obtain a dry composite material fiber,vi) the elimination of the vinyl alcohol polymer by calcination of the dry composite material pre-fiber from the preceding step, in order to obtain a titanium dioxide macroscopic fiber.2. The process as claimed in claim 1 , wherein the titanium dioxide nanoparticles used during step i) are spherical nanoparticles claim 1 , the mean diameter of which varies from 2 to 15 nm.3. The process as claimed in claim 1 , wherein the ...

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Номер записи: 29
04-02-2016 дата публикации

MULTI-FIBER CARDING APPARATUS AND METHOD

Номер: US20160032497A1
Автор: PRYNE Wilson H.
Принадлежит:

A method of forming carded fibers of different materials. A feed system has a plurality of separate laterally spaced chambers containing fibers of different materials. The different fibers are fed in separate laterally spaced paths into a carding apparatus having a plurality of rollers and cylinders each having laterally spaced sections in alignment with the laterally spaced paths to receive and maintain the different fibers in the laterally spaced paths thereon as they move through the carding apparatus. The different fibers are combined into a multi-fiber roving or web after they exit the carding apparatus. Depending on the composition of the different fibers, they may be combined by conveying them through a humidifying and heated chamber or chambers. 1. A method of forming carded fibers of different materials , comprising:providing a feed system having a plurality of separate laterally spaced chambers containing fibers of different materials;feeding the different fibers in separate laterally spaced paths onto a plurality of rollers and cylinders in a carding apparatus, said rollers and cylinders each having laterally spaced sections in alignment with the laterally spaced paths to receive and maintain the different fibers in the laterally spaced paths therein as they move through the carding apparatus; andcombining the different fibers into a multi-fiber roving or web after they exit the carding apparatus.2. The method of wherein the laterally spaced sections of the rollers and cylinders are of a width corresponding to a width of the different fiber paths.3. The method of wherein the laterally spaced sections of the rollers and cylinders are separated by raised bands that are in laterally spaced relation thereon.4. The method of wherein the hands are formed of metal and welded onto the rollers and cylinders.5. The method of wherein the laterally spaced sections contain spaced raised wires and the bands are interlocked with the spaced wires.6. The method of wherein ...

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Номер записи: 30
01-05-2014 дата публикации

METHOD FOR PRODUCING CARBON-FIBER-PRECURSOR ACRYLIC FIBER BUNDLE

Номер: US20140115848A1
Автор: Miyauchi Akira, MIZUTORI Yukihiro, OOKI Isao, TADA Akishige
Принадлежит: MITSUBISHI RAYON CO., LTD.

A steam-drawing apparatus has supply roll that transfers carbon-fiber-precursor acrylic fiber bundle (T) in a transfer direction of fiber bundle (T); fiber-opening device for opening fiber bundle (T); width control device for controlling the width of fiber bundle (T); steam box to provide steam for heating fiber bundle (T) to a temperature that allows fiber bundle (T) to be drawn; and haul-off roll that transfers fiber bundle (T) at a speed faster than that of supply roll Using width control device provided at a position between supply roll and steam box the width of fiber bundle (T) after passing through width control device is set to be 65˜110% of the width of fiber bundle (T) before entering the supply roll. The present invention proposes a method for producing a carbon-fiber-precursor acrylic fiber bundle using such a steam-drawing apparatus capable of conducting a high-speed drawing process of carbon-fiber-precursor acrylic fiber bundles at a high draw rate with stable results. 1. A method for producing a carbon-fiber-precursor acrylic fiber bundle , the method comprising:opening a carbon-fiber-precursor acrylic fiber bundle using a fiber-opening device that opens a fiber by jet-spraying fluid from a fluid jet-spray nozzle; andintroducing the carbon-fiber-precursor acrylic fiber bundle into a steam box for heating,whereina gas is used as the jet-sprayed fluid from the fluid jet-spray nozzle,a flow rate of the gas is at least 7 NL/min but at most 16 NL/min per 1000 dtex, anda flow speed of the gas is at least 130 m/sec but at most 350 m/sec.2. The method according to claim 1 , whereina nozzle aperture of the fluid jet-spray nozzle is shaped rectangular to be long in a width direction of the carbon-fiber-precursor acrylic fiber bundle, and{'b': 1', '2', '1', '2, 'a ratio W/W of a width of the nozzle aperture of the fluid jet-spray nozzle W to a width of the fiber bundle on a roll positioned shortly before the fiber-opening device W is at least 1.2 but at most 2.0 ...

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Номер записи: 31
01-02-2018 дата публикации

Modular Furnace, In Particular For The Oxidative Stabilization Of A Carbon Fiber Starting Material

Номер: US20180031321A1
Автор: Decker Daniel, KUNSTMANN Jürgen, LINN Horst, LINN Rudolf, SCHWERDT Phillip, WÖLKI Michael
Принадлежит:

A modular furnace, in particular for the oxidative stabilization of a carbon fiber starting material comprising a cuboidal furnace chamber, on the upper face of which first deflecting rollers are arranged in a mutually spaced and parallel manner and on the lower face of which second deflecting rollers are arranged in a mutually spaced and parallel manner such that the carbon fiber starting material runs upwards and downwards in a laterally adjacent and slightly spaced manner so as to meander vertically in the area of the furnace chamber. A carbon fiber inlet locking device and a carbon fiber outlet locking device are provided on the upper face of the furnace chamber, and an air guiding device is connected to the furnace chamber. A supply air portion of the air guiding device is connected to a vertical air inlet side of the furnace chamber, and a discharge air portion of the air guiding device is fluidically connected to a furnace chamber vertical air outlet side opposite the vertical air inlet side. The air guiding device has an air drive device between the supply air portion and the discharge air portion. 1. A modular furnace comprising a rectangular-block shaped furnace chamber , first deflection rollers being disposed so as to be mutually spaced apart and mutually parallel on the upper side of the furnace chamber , and second deflection rollers being disposed so as to be mutually spaced apart and mutually parallel on the lower side of the furnace chamber in such a manner that the carbon thread starting material in the furnace space of the furnace chamber runs side-by-side and mutually slightly spaced apart in a meandering vertical up-and-down manner , a carbon thread entry lock installation and a carbon thread exit lock installation provided on the upper side of the furnace chamber , an air guiding installation which by way of an intake air portion is connected to a vertical air entry side of the furnace chamber and by way of an exhaust air portion is connected ...

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Номер записи: 32
30-01-2020 дата публикации

Method and Device for Manufacturing Protein Fiber

Номер: US20200031886A1
Автор: Maekawa Takehisa, Morinaga Takashi
Принадлежит:

The present invention relates to a method for manufacturing a protein fiber, including an extension and contraction step of contracting or extending a protein raw fiber containing a protein by bringing the protein raw fiber into contact with a liquid or vapor; and a drying step of drying the protein raw fiber that has undergone the extension and contraction step while adjusting a length of the protein raw fiber to an arbitrary length. 1. A method for manufacturing a protein fiber , comprising:an extension and contraction step of contracting or extending a protein raw fiber containing a protein by bringing the protein raw fiber into contact with a liquid or vapor; anda drying step of drying the protein raw fiber that has undergone the extension and contraction step while adjusting a length of the protein raw fiber to an arbitrary length.2. The method for manufacturing a protein fiber according to claim 1 , wherein the extension and contraction step is a step of naturally contracting the protein raw fiber by bringing the protein raw fiber into contact with the liquid or vapor.3. The method for manufacturing a protein fiber according to claim 2 , wherein the extension and contraction step is performed in a state where the protein raw fiber is not loosened.4. The method for manufacturing a protein fiber according to claim 3 , wherein claim 3 , in the extension and contraction step claim 3 , the protein raw fiber is tensioned such that a contraction amount of the protein raw fiber is substantially the same as a contraction amount of the protein raw fiber in a case where the protein raw fiber is naturally contracted by being brought into contact with the liquid or vapor in a state where the protein raw fiber is loosened.5. The method for manufacturing a protein fiber according to claim 1 , wherein the protein is a structural protein.6. The method for manufacturing a protein fiber according to claim 5 , wherein the structural protein is a spider silk fibroin.7. The method ...

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Номер записи: 33
04-02-2021 дата публикации

PARTIAL SPLIT-FIBER FIBER BUNDLE, INTERMEDIATE BASE MATERIAL, MOLDING, AND METHOD OF PRODUCING SAME

Номер: US20210032067A1
Автор: Kondo Takashi, Kuroda Tetsuya, Shimoyaya Akira
Принадлежит:

A method produces a partial split-fiber fiber bundle capable of stably separating a fiber bundle continuously for a long time even when a splice part is present in the partial split-fiber fiber bundle. The method produces a partial split-fiber fiber bundle in which when the fiber bundle having the splice part formed by joining fiber bundles is allowed to travel along a longitudinal direction, a part of the fiber bundle is separated by thrusting a protruding part of the fiber splitting means into the fiber bundle, and timing at which the fiber splitting means is thrust into the fiber bundle is changed based on position information of the splice part obtained by detecting the splice part. 119.-. (canceled)20. A method of producing a partial split-fiber fiber bundle , comprising:allowing a fiber bundle having a splice part to travel along a longitudinal direction;meanwhile, repeatedly thrusting and extracting a protruding part of a fiber splitting means into and from the fiber bundle in a split-fiber processed part; and thusseparating a part of the fiber bundle in the longitudinal direction of the fiber bundle,wherein the protruding part of the fiber splitting means is extracted from the fiber bundle before the splice part based on position information of the splice part obtained by detecting the splice part, and when the splice part passes through the split-fiber processed part, a condition A or a condition B are satisfied, whereinthe condition A is that thrusting of the protruding part of the fiber splitting means is stopped, andthe condition B is that a moving speed of the protruding part of the fiber splitting means is substantially identical to a traveling speed of the fiber bundle.21. The method according to claim 20 , wherein when the splice part passes through the split-fiber processed part claim 20 , the fiber splitting means moves at a speed substantially identical to a moving speed of the fiber bundle claim 20 , and thus timing at which the protruding part ...

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Номер записи: 34
04-02-2021 дата публикации

METHOD FOR MANUFACTURING A MULTI-PLY SEPARABLE FILAMENT YARNS AND MULTI-PLY SEPARABLE TEXTURED YARN

Номер: US20210032783A1
Автор: Gupta Ronak Rajendra
Принадлежит:

A method of manufacturing multi-ply separable textured yarn, the method comprising, passing a multi-ply separable interlaced filament yarn through a texturizing unit to form a multi-ply separable draw textured yarn, wherein the multi-ply separable interlaced filament yarn is separable in to at least two separable interlaced filament yarn, wherein the interlacing of the filaments within each separable interlaced filament yarn is retained during further processing of the yarn to fabric and in the fabric. 1. A method for manufacturing a high thread/yarn count woven textile fabric comprising the steps:i. entering an input of two or more separable interlaced multi-filament yarns into a texturizing unit, wherein each of the two or more separable interlaced multi-filament yarns has interlacing strong enough to maintain separability during and after texturizing;ii. exiting a group of separable draw textured yarns from the texturizing unit, wherein the group of separable draw textured yarns is separable into the same number of separable draw textured yarns as the number of separable interlaced multi-filament yarns in the input, andiii. inserting on a loom the group of separable draw textured yarns together as weft to form a fabric.2. The method of claim 1 , the method further comprising:passing a yarn through at least one interlacing jet in order to interlace the filaments within the yarn to yield a separable interlaced multi-filament yarn, andoptionally, grouping two or more separable interlaced multi-filament yarns to form a group of separable interlaced multi-filament yarns, wherein each separable interlaced multi-filament yarn is separable from other separable interlaced multi-filament yarns in the group,wherein the steps of passing a yarn through at least one interlacing jet and grouping two or more separable interlaced multi-filament yarns to form a group of separable interlaced multi-filament yarns occur prior to entering the input of the two or more separable ...

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Номер записи: 35
11-02-2016 дата публикации

DEVICE FOR THE THERMAL TREATMENT OF YARNS

Номер: US20160040324A1
Автор: BECKERS Joachim, Brenk Siegfried, DEITLAFF Michael, Singer Sergei, Zischewski Jorg
Принадлежит:

A device for the thermal treatment of yarns comprising at least one inlet opening and at least one outlet opening for at least one transport means, which transports the yarn through the device, and comprising separating elements at the inlet opening and the outlet opening for thermal shielding, in order to minimise the exchange of media to the environment. The separating elements are configured to have a low bending rigidity and are arranged such that a surface load is applied onto the yarn lying on the transport means, for example a conveyor belt, which is not greater than 0.005 kg*cm. 11345231679101145. Device () for the thermal treatment of yarns () comprising at least one inlet opening () and at least one outlet opening () for at least one transport means () , which transports the yarn () through the device () , and comprising separating elements ( , , , , ) at the inlet opening () and the outlet opening () for thermal shielding in order to minimise the exchange of media to the environment ,characterised in that{'b': 6', '7', '9', '10', '11', '3', '2, 'sup': '−2', 'the separating elements (, , , , ) are configured to have a low bending rigidity and are arranged such that a surface load is applied onto the yarn () lying on the transport means () which is not greater than 0.005 kg*cm.'}223. Device according to claim 1 , characterised in that for thermal shielding to minimise the exchange of media the separating elements are made from a flexible material arranged on the side of the transport means () covered with yarn ().37. Device according to claim 2 , characterised in that the separating element is designed as a flexible loop ().487. Device according to claim 3 , characterised in that a loading element () is arranged inside the loop ().56. Device according to claim 2 , characterised in that the yarn-contacting side of the flexible material () has low-friction properties.69. Device according to claim 1 , characterised in that for thermal shielding the separating ...

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Номер записи: 36
09-02-2017 дата публикации

Nylon 66 hollow fiber, method and equipment for manufacturing the same

Номер: US20170037542A1
Автор: Chi-Lu HUANG, Chuan-Shing Lin, Chung-Chen Wu, Yen-Hsiao Chen
Принадлежит: Chain Yarn Co Ltd

A method for manufacturing a nylon 66 hollow fiber includes steps as follows. A plurality of nylon 66 particles are provided. A melting step is provided, wherein the nylon 66 particles are melted so as to form a spun liquid. A fiber spitting step is provided, wherein the spun liquid goes through a hollow spinneret plate so as to form hollow nascent fibers. An evacuating step is provided, wherein the hollow nascent fibers are preliminarily solidified so as to form hollow half-solidified fibers. A cooling step is provided, wherein the hollow half-solidified fibers are cooled and solidified so as to form solidified fibers. A collecting and oiling step is provided. A drawing step is provided. A winding step is provided so as to obtain the nylon 66 hollow fiber.

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Номер записи: 37
09-02-2017 дата публикации

METHOD AND DEVICE FOR SPREADING FIBER STRANDS

Номер: US20170037545A1
Автор: HOLTMANN Thomas, Keppel Jürgen, Rakovac Andy
Принадлежит:

A method and a device for spreading a fiber strand to provide a strip-type fiber strand. In particular, the initial fiber strand is provided with an initial width and thickness, and is then spread to form the strip-type fiber strand having a greater final width and a smaller final thickness as compared to the initial width and thickness. The fiber strand consists of continuous multifilament fibers. 1. A method for spreading a fiber strand with an initial width and with an initial thickness to a strip-type fiber strand with a greater final width and with a smaller final thickness , wherein the fiber strand consists of continuous multifilament fibers , comprising;moving the fiber strand from an unwinding unit to a winding unit in the longitudinal direction (x-direction); andpassing the fiber strand through a spreader station between the unwinding unit and the winding unit, while holding the fiber strand under an adjustable tensionwherein the fiber strand in the spreader station is placed under uniform tension during its entire passage;wherein in the spreader station the fiber strand contacts at least one sonotrode and by means of vibrations introduced into the fiber strand from above and/or from below (z-direction) by a front-side contact surface of the sonotrode, the fiber strand is uniformly spread transverse to the longitudinal direction; and andwherein the vibrations have a frequency is between 15 kHz and 80 kHz,2. The method according to claim 1 , wherein the multifilament fibers of the fiber strand are surrounded by a release agent and a quantity ratio of multifilament fibers to the release agent in the strip-type fiber strand does not change with respect to the fiber strand prior to spreading.3. The method according to claim 1 , wherein when fiber strands are made of tension-resistant fibers claim 1 , the fibers strands are supplied at a work angle to a contact surface of the at least one sonotrode.4. The method according to claim 1 , wherein the fiber strand ...

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Номер записи: 38
24-02-2022 дата публикации

Partially separated fiber bundle and method of manufacturing same

Номер: US20220055857A1
Автор: Akihiko Matsui, Hiroshi Hirano, Kazuma Ura, Masaru Tateyama, Mitsuki Fuse, Satoshi Seike
Принадлежит: TORAY INDUSTRIES INC

A partially separated fiber bundle includes a separated fiber section and an unseparated fiber section, being configured to give a ratio Amax/Amin of 1.1 or larger and 3 or smaller, when the number of fiber bundles contained in the width direction of the partially separated fiber bundle (fiber separating number: Nn) measured at a freely selected point Pn (where, n represents an integer of 1 to 100, and freely selected points Pn and Pn+1, excluding n=100, being 50 cm or more away from each other), is divided by a full width of Wn of the partially separated fiber bundle, to calculate the fiber separating number per unit width An, and assuming its maximum value as Amax and its minimum value as Amin.

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Номер записи: 39
07-02-2019 дата публикации

A METHOD FOR MANUFACTURING A MULTI-PLY SEPARABLE FILAMENT YARNS & MULTI-PLY SEPARABLE TEXTURED YARN

Номер: US20190040552A1
Автор: Gupta Ronak Rajendra
Принадлежит:

A method of manufacturing multi-ply separable textured yarn, the method comprising, passing a multi-ply separable interlaced filament yarn through a texturizing unit to form a multi-ply separable draw textured yarn, wherein the multi-ply separable interlaced filament yarn is separable in to at least two separable interlaced filament yarn, wherein the interlacing of the filaments within each separable interlaced filament yarn is retained during further processing of the yarn to fabric and in the fabric. 1. A method of manufacturing a separable interlaced filament yarn , the method comprising:a) passing a polymer melt through a spinning unit to form a plurality of molten streams;b) cooling the molten streams in a quenching zone to form plurality of polymer filaments; wherein said polymer filaments are not side-by-side or seath-core bi-component filament;c) grouping the filaments to form a yarn; and 'Wherein parameters for strong interlacing are number of interlacing devices, number of filaments in the yarn, type of the filament, denier of the yarn, speed of the yarn passing through the interlacing devices, number of jets in the interlacing devices, number of nozzles in said jet, diameter of nozzles, type of fluid passed through the nozzles of the jets for causing interlacing of filaments and pressure of the fluid.', 'd) passing the yarn through at least one interlacing means for strong interlacing the filaments within the yarn by setting the parameters for strong interlacing to provide a separable interlaced filament yarn; wherein the interlacing of the filaments within the yarn is significantly retained during further processing of the yarn to fabric and in the fabric so that yarn Ply of said Separable Interlaced filament yarn is Separable from other yarn plies in the fabric;'}2. The method as claimed in claim 1 , wherein the separable interlaced filament yarn is converged with at least one more separable interlaced filament yarn to provide a multi-ply separable ...

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Номер записи: 40
18-02-2021 дата публикации

Method to Produce Micro and Nanofibers with Controlled Diameter and Large Yield

Номер: US20210047758A1
Автор: Alhindi Momtaz, Clyne Alisa Morss, Cui Chunxiao, Han Li-Hsin, Han Lin, He Lanziye, Krystek Jeffrey, Micucci Victor, Ostrow Evan, Shafi Sabah, Wang Mingkun
Принадлежит:

In one embodiment, the present invention is a method for producing microfibers comprising the steps of: (a) providing a base material; (b) forming the base material in a ring; (c) gripping opposing ends of the ring; (d) flipping one of the opposing ends relative to the other of the opposing ends, forming an upper portion and a lower portion; (e) folding the upper portion onto the lower portion; (f) stretching the folded upper and lower portions; and (g) repeating steps (d)-(f) as desired. 1. A method for producing microfibers comprising the steps of:(a) providing a base material;(b) forming the base material in a ring;(c) gripping opposing ends of the ring;(d) flipping one of the opposing ends relative to the other of the opposing ends, forming an upper portion and a lower portion;(e) folding the upper portion onto the lower portion;(f) stretching the folded upper and lower portions; and(g) repeating steps (d)-(f) as desired.2. The method according to claim 1 , wherein steps (d)-(f) are performed sufficient times to form fibers with sub-micron diameter.3. The method according to claim 1 , wherein step (a) comprises providing a protein-based base material.4. The method according to claim 1 , wherein step (a) comprises providing a sheath around the base material.5. The method according to claim 4 , wherein the method further comprises the step of:(h) dissolving the sheath.6. The method according to claim 1 , wherein the method is performed manually.7. The method according to claim 1 , wherein the method is performed automatically.8. The method according to claim 7 , wherein the method comprises providing a machine claim 7 , wherein the machine performs steps (c)-(g).9. The method according to claim 8 , wherein step (f) comprises forcing the folded upper and lower portions onto a cone.10. The method according to claim 8 , wherein step (f) comprises placing the folded upper and lower portions around a frame and expanding the frame.11. The method according to claim 10 , ...

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Номер записи: 41
15-02-2018 дата публикации

SPREADER ELEMENT FOR MANUFCTURING UNIDIRECTIONAL FIBER-REINFORCED TAPES

Номер: US20180043580A1
Автор: de Weerd Gerard, Prins Rinus
Принадлежит:

Disclosed is a fiber-reinforced composite and methods and apparatuses for making the same. Some fiber-reinforced composites include a matrix material including a thermoplastic material and a non-woven fibrous region having a plurality of continuous fibers dispersed in the matrix material, wherein the width and the length of the non-woven fibrous region are substantially equal to the width and the length, respectively, of the fiber-reinforced composite, wherein the non-woven fibrous region has a mean relative area fiber coverage (RFAC) (%) of from 65 to 90 and a coefficient of variance (COV) (%) of from 3 to 20, and wherein each of the plurality of continuous fibers is substantially aligned with the length of the fiber-reinforced composite. 1. A spreader element configured to spread a fiber bundle having a plurality of fibers into a spreaded fiber layer , the spreader element comprising:a profile taken perpendicularly to a longitudinal axis of the spreader element;an ellipsoidal first surface that defines a convex portion of the profile; anda second surface that defines a straight or concave portion of the profile;wherein the first and second surfaces meet at an edge.2. The spreader element of claim 1 , wherein the second surface is planar or concave.3. A spreader element configured to spread a fiber bundle having a plurality of fibers into a spreaded fiber layer claim 1 , the spreader element comprising: an ellipsoidal first surface; and', 'a concave or planar second surface;, 'two or more lobes disposed along a longitudinal axis of the spreader element, each havingwherein the two or more lobes are disposed along the longitudinal axis such that the second surfaces of the two or more lobes are contiguous.4. The spreader element of claim 3 , wherein claim 3 , for each of the two or more lobes claim 3 , the first and second surfaces meet at an edge.5. The spreader element of any of - claim 3 , wherein the longitudinal axis of the spreader element extends through first ...

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Номер записи: 42
16-02-2017 дата публикации

Acrylic fibers, method for manufacturing same, and spun yarn and knitted fabric using said fibers

Номер: US20170044693A1
Автор: Naoki OMIYAJI, Shingo NAKAHASHI, Yukio Onohara
Принадлежит: Mitsubishi Rayon Co Ltd

Provided are: acrylic fibers having 2-7% boiling water shrinkage and formed by the side-by-side conjugation of a copolymer A, which contains 5-10 mass % of an unsaturated monomer that can form a copolymer with acrylonitrile units, and a copolymer B, which contains 2-5 mass % of unsaturated monomer units that can form a copolymer with acrylonitrile units and 0.2-1.5 mass % of sulfonic acid group-containing monomer units; a method for manufacturing said fibers; a spun yarn containing said fibers; and a knitted fabric obtained from said spun yarn. The single fiber fineness of the heat-treated acrylic fibers is 1.7-6.6 dtex, the bulkiness is at least 380 cm3/g, the percentage of crimp is at least 15%, and the product (DKSDKE) of the knot strength (cN/dtex) and the knot elongation (%) is 10-25. The acrylic fibers have excellent crimp characteristics and anti-pilling properties.

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Номер записи: 43
16-02-2017 дата публикации

SYSTEMS AND ARTICLES OF MANUFACTURE EMPLOYING LONG-TERM COOLING MATERIAL AND PROCESSES TO GENERATE THE LONG-TERM COOLING MATERIAL AND ARTICLES OF MANUFACTURE

Номер: US20170044695A1
Автор: Hays Tosha, Kolb Mary-Cathryn
Принадлежит:

A long-term cooling material is provided. The long-term cooling material includes: a yarn having a defined denier of less than or equal to approximately 70 denier and a defined yarn count; and a cooling mineral core disposed on the yarn and comprising nanosilver, wherein the cooling material is a material knit on a 28 gauge or greater knitting machine. In some embodiments, the yarn count can be greater than or equal to approximately 36 rows per inch. The yarn can include Nylon 6. An article of manufacture is provided. The article can include a non-cooling material disposed to be positioned over two or more portions of the body; and a cooling material disposed to be positioned on the non-cooling material at selected locations indicative of areas of the body prone to overheating. 1. A cooling material , comprising:a yarn having a defined denier of less than or equal to approximately 70 denier and a defined yarn count; andat least one of a cooling mineral compound powder, a cooling mineral core or nanosilver, wherein the at least one of the cooling mineral compound powder, the cooling mineral core or nanosilver is disposed on or in the yarn, and wherein the cooling material is a material knit on a 28 gauge or greater knitting machine.2. The cooling material of claim 1 , wherein the defined yarn count is greater than or equal to approximately 36 rows per inch.36. The cooling material of claim 1 , wherein the yarn comprises Nylon or polyamide.4. The cooling material of claim 1 , wherein the yarn comprises at least one of polyester claim 1 , polyporopylene claim 1 , polyacrylonitrile or rayon.5. The cooling material of claim 1 , wherein the cooling material is a material knit on a knitting machine having a gauge approximately equal to or greater than a 36 gauge knitting machine and approximately equal to or less than a 50 gauge knitting machine.68-. (canceled)9. The cooling material of claim 1 , wherein the cooling material is configured to lower a skin temperature of a ...

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Номер записи: 44
08-05-2014 дата публикации

APPARATUS FOR PRESSURE STEAM TREATMENT OF CARBON FIBER PRECURSOR ACRYL FIBER BUNDLE AND METHOD FOR PRODUCING ACRYL FIBER BUNDLE

Номер: US20140123713A1
Автор: Inada Hiromasa, Kawamura Atsushi, MIZUTORI Yukihiro
Принадлежит: MITSUBISHI RAYON CO., LTD.

A pressure steam treatment apparatus according to the invention includes a pressure steam treatment chamber and labyrinth sealing chambers. The labyrinth sealing chambers are respectively arranged on a fiber bundle inlet and on a fiber bundle outlet of the steam treatment apparatus, having a running path of the fiber bundle in a horizontal direction and having plural labyrinth nozzles on top and bottom of the running path. The difference between a maximum value and a minimum value of the distance in the perpendicular direction of the top and bottom side labyrinth nozzles, of a pair of opposing labyrinth nozzles is 0.5 mm or smaller when the ambient temperature of the labyrinth sealing chamber is 140° C. This structure ensures that the energy cost can be reduced, the deformation of the apparatus and also, the raise of fuzz on the fiber bundle and fiber bundle breakage can be prevented at the same time. 1. A pressure steam treatment apparatus comprising a pressure steam treatment chamber and a labyrinth sealing chamber , wherein:the labyrinth sealing chamber is arranged on a fiber bundle inlet and on a fiber bundle outlet of the steam treatment apparatus, a running path of a fiber bundle is in a horizontal direction, wherein plural labyrinth nozzles are arranged on top and bottom of the running path; andthe labyrinth nozzles comprise a top side labyrinth nozzle and a bottom side labyrinth nozzle located opposite to each other;a difference between a maximum value and a minimum value of a distance in a perpendicular direction of the top and bottom side labyrinth nozzles, of a pair of opposing labyrinth nozzles is 0.5 mm or smaller when the ambient temperature of the labyrinth sealing chamber is 140° C.2. The pressure steam treatment apparatus of claim 1 , further comprising an external wall member on an upper surface and a lower surface of the pressure steam treatment apparatus excluding a steam inlet claim 1 , having a plate member extending along a top board of the ...

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Номер записи: 45
03-03-2022 дата публикации

STRETCHED FLUOROPOLYMERS

Номер: US20220064821A1
Автор: BUECKER Dirk Heinrich, DE GANS LI Lan, HARTMANN Markus, Wielpuetz Martin
Принадлежит: EVONIK OPERATIONS GMBH

The present invention is directed to stretched filaments based on fluoropolymers, where the filaments were stretched at a temperature between 70° C. and the Vicat temperature and where the filaments are cooled under full tensile load to room temperature. 1. A process for producing stretched filaments comprising at least 80% by weight of at least one fluoropolymer , the process comprising:stretching raw filaments with a stretching factor greater than or equal to 3 at a temperature between 70° C. and a Vicat temperature of the at least one fluoropolymer, which is determined in accordance with DIN EN ISO 306:2004-10 B50, andcooling the raw filaments after stretching under full tensile load to below 50° C.,wherein the stretched filaments have a rectangular cross section where a thickness thereof is less than a width thereof,wherein the stretched filaments are made of non-perfluorinated polymers.2. The process according to claim 1 , where the at least one fluoropolymer is selected from the group consisting of polyvinylidene fluoride (PVDF) claim 1 , ethylene-tetrafluoroethylene copolymer (ETFE) claim 1 , ethylene-chlorotrifluoroethylene copolymer (E-CTFE) claim 1 , polychlorotrifluoroethylene (PCTFE) claim 1 , ETFE modified by a tercomponent or modified by vinylidene fluoride claim 1 , and copolymers based on vinylidene fluoride which comprise up to 40% by weight of other monomers.3. The process according to claim 1 , where the Vicat temperature of the at least one fluoropolymer is at least 80° C.4. Stretched filaments produced by the process according to claim 1 , having a width to thickness ratio of at least 25.5. A composite comprising the stretched filaments according to .6. A winding layer comprising the stretched filaments according to . The present invention is directed to stretched filaments based on non-perfluorinated fluoropolymers, where the filaments were stretched at a temperature between 70° C. and the Vicat temperature and where the filaments are cooled ...

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Номер записи: 46
25-02-2021 дата публикации

METHOD FOR PREPARING NATURAL FIBER COMPOSITE MATERIAL FOR INJECTION MOLDING BY USING CONVERGENT NOZZLE HEATING JIG

Номер: US20210053255A1
Автор: SON KeunSoo
Принадлежит:

The present invention relates to a manufacturing method of a natural fiber composite material for injection molding using a reduced nozzle heating jig, and particularly, to a manufacturing method of a natural fiber composite material for injection molding using a reduced nozzle heating jig, which is configured to include: combining natural fibers and synthetic fibers (S); heat-pressing the combined ply yarn while passing through a reduced nozzle heating jig and melting and pressing the synthetic fibers and fusing the synthetic fibers to the natural fibers (S); and palletizing the mixed ply yarn (S). 1. A manufacturing method of a natural fiber composite material for injection molding using a reduced nozzle heating jig , comprising:{'b': '1', 'combining natural fibers and synthetic fibers (S);'}{'b': 100', '2, 'heat-pressing the combined ply yarn while passing through a reduced nozzle heating jig and melting and pressing the synthetic fibers and fusing the synthetic fibers to the natural fibers (S); and'}{'b': '3', 'palletizing the mixed ply yarn (S).'}2100. The manufacturing method of claim 1 , wherein the reduced nozzle heating jig is configured to include{'b': '110', 'a jig body ,'}{'b': 120', '110, 'one or more reduced nozzles formed in the jig body , and'}{'b': 130', '110, 'one or more heating heaters installed in the jig body , and'}{'b': '120', 'the reduced nozzle is configured to further include'}{'b': '121', 'a derivation introduction unit ,'}{'b': 122', '121, 'a reduced heating pressing unit formed subsequently to the derivation introduction unit and having an inner diameter which is gradually reduced, and'}{'b': 123', '122, 'a heat-pressing unit formed subsequently to the reduced heat-pressing unit .'}311230. The manufacturing method of claim 2 , wherein an inner diameter d of the heat-pressing unit is formed to be smaller than an outer diameter d of the ply yarn.4. The manufacturing method of claim 1 , wherein the natural fiber is configured to include ...

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Номер записи: 47
14-02-2019 дата публикации

PROCESSING METHODS AND APPARATUS TO MANUFACTURE A FUNCTIONAL, MULTI-SCALE, TAPERED FIBER FROM POLYMER FILAMENT

Номер: US20190048495A1
Автор: Brinson L. Catherine, Collinson David W., Hartmann Mitra J.
Принадлежит:

Systems, methods, and apparatus to provide artificial whisker filaments are disclosed and described. An example artificial whisker is tapered to include a tip diameter smaller than a base diameter of the artificial whisker, the artificial whisker formed from a polymer arranged to permit elastic deformation of the artificial whisker, the deformation of the artificial whisker to transmit force to a sensor associated with a base of the artificial whisker. An example method of manufacturing an artificial whisker includes removably affixing a first end of a filament to a heated, non-stick surface; drawing the filament across the surface to form a first, tapered portion, a second portion of the filament remaining on the surface, wherein the filament is to be drawn until the first portion is disengaged from the surface; and separating the first, tapered portion of the filament from the second portion of the filament to form a tapered artificial whisker. 1. A method of manufacturing an artificial whisker , the method comprising:removably affixing a first end of a filament to a heated, non-stick surface;drawing the filament across the heated, non-stick surface to form a first, tapered portion, a second portion of the filament remaining on the heated, non-stick surface, wherein the filament is to be drawn until the first portion is disengaged from the heated, non-stick surface; andseparating the first, tapered portion of the filament from the second portion of the filament to form a tapered artificial whisker.2. The method of claim 1 , wherein the filament includes a cylindrical filament formed from at least one of a polycarbonate or an acrylonitrile-butadiene-styrene material.3. The method of claim 1 , wherein the heated claim 1 , non-stick surface includes a heated polytetrafluoroethylene plate.4. The method of claim 1 , wherein the heated claim 1 , non-stick surface is to raise a temperature of the filament past a glass transition temperature (Tg) of the filament.5. The ...

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Номер записи: 48
23-02-2017 дата публикации

A FIBER PRODUCTION SYSTEM AND PRODUCTION METHOD

Номер: US20170050346A1
Автор: TURKASLAN Ozlem
Принадлежит: KORDSA GLOBAL ENDÜSTRIYEL iPLIK VE KORD BEZI SANAYI VE TICARET ANONIM SIRKETI

The present invention relates to a fiber production system () and production method which enables heat treatment applied during fiber production to be performed as applying laser on the fiber. The objective of the present invention is to provide a fiber production system () and production method which enables to perform momentary heat treatment on the filament (F) via laser beam (L) and which eliminates defected points in the filament structure by heating fast and drawing in fiber production. 1. A fiber production system , for preventing the skin-core structure formed in the fiber and/or eliminating this structure , comprising:at least one molten forming member which enables the polymeric crude material to be used in fiber production to be heated and melted,at least one extrusion member which enables the molten crude material to be passed through at least one spinneret at its end part,at least one cooling unit which provides filament structure to the crude material going out of the extrusion member and passing through the spinnerets by cooling it,a plurality of rollers which enables the crude material to be heated above glass transition temperature or crystallization temperature and the fiber material in filament form to reach a certain crystallinity by being drawn at a certain tension,at least one mobile laser device which enables to form a balanced heat distribution and thus the defect in the filament structure to be eliminated by drawing via heat and the rollers by applying laser beam on the filament during drawing the filaments with the rollers,at least one heated chamber which is located between any two rollers, preferably before the fourth roller, applying heat on the material in order to increase crystallinity in the fiber material drawn with the rollers, and enabling the continuity of the filament structure provided to the material,at least one control member which enables to guide the mobile laser device to the related area according to the data it receives ...

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Номер записи: 49
25-02-2021 дата публикации

TOTAL FIT COTTON FABRIC

Номер: US20210054544A1
Автор: JANARDHANAN Neelamegam Krishnamoorthy, RAJESH Sundaram, RANGANATHAN Vijayaragavan
Принадлежит: K. G. Denim Limited

A woven textile fabric that is lightweight, soft, smooth, supple and durable has a composition including a regenerated cellulosic fiber, cotton and an elastane fiber such as spandex. The fabric includes warp yarn and weft yarn, and the weft yarn is a core spun yarn made of an elastane fiber core surrounded by a sheath of blended regenerated cellulosic fiber and cotton. The fabric construction may range from about 44 ends/inch to about 300 ends/inch and from about 30 picks/inch to about 600 picks/inch. The warp count may range from 2 s count to 140 s count, and the weft count ranges from 2 s count to 170 s count. The fabric, which can be made using a series of innovative process steps, is particularly useful as a bed linen. 1. A woven textile fabric comprising warp yarn and weft yarn and having a composition comprising a regenerated cellulosic fiber , cotton and an elastane fiber.2. The woven textile fabric of claim 1 , wherein the weft yarn is a core spun yarn comprising an elastane fiber core surrounded by a sheath of blended regenerated cellulosic fiber and cotton.3. The woven textile fabric of claim 1 , wherein the elastane fiber is spandex.4. The woven textile fabric of claim 1 , wherein the regenerated cellulosic fiber is lyocell.5. The woven textile fabric of claim 3 , wherein the regenerated cellulosic fiber is present in an amount ranging from about 65% to about 69% claim 3 , the cotton is present in an amount ranging from about 27% to about 33% claim 3 , and the spandex is present in an amount ranging from about 2% to about 4%.6. The woven textile fabric of claim 5 , wherein the regenerated cellulosic fiber is present at about 67% claim 5 , the cotton is present at about 30% claim 5 , and the spandex is present at about 3%.7. The woven textile fabric of claim 1 , wherein the weave is a 4/1 satin weave.8. The woven textile fabric of claim 1 , wherein the thread count ranges from about 80 to about 2000.9. The woven textile fabric of claim 1 , wherein the ...

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Номер записи: 50
05-03-2015 дата публикации

METHOD AND APPARATUS FOR PRODUCING A SCRIM

Номер: US20150059128A1
Автор: HEINECKE Thomas, LEIMCKE Tobias
Принадлежит: KARL MAYER MALIMO TEXTILMASCHINENFABRIK GMBH

Method and apparatus for producing a scrim. The method includes depositing several band sections next to one another on a conveyor device that at least temporarily moves in a direction of transport. The direction of transport is oriented at a predetermined angle to a band direction and each band section has a front edge running in the band direction and a rear edge running in the band direction. The method also includes placing the band sections so that the rear edge of a first band section is adjacent the front edge of a second band section, calculating a rear-edge shape of the first band section and a front-edge shape of the second band section and placing the second band section on the conveyor device relative to the first band section as a function of a relation between the front-edge shape and the rear-edge shape. 1. A method for producing a scrim comprises:depositing several band sections next to one another on a conveyor device that at least temporarily moves in a direction of transport, the direction of transport being oriented at a predetermined angle to a band direction and each band section having a front edge running in the band direction and a rear edge running in the band direction;placing the band sections so that the rear edge of a first band section is adjacent the front edge of a second band section;calculating a rear-edge shape of the first band section and a front-edge shape of the second band section; andplacing the second band section on the conveyor device relative to the first band section as a function of a relation between the front-edge shape and the rear-edge shape.2. The method according to claim 1 , wherein at least one of the front-edge shape and the rear-edge shape is calculated as the difference from a line running in the band direction.3. The method according to claim 2 , wherein at least one of the front-edge shape and the rear-edge shape is calculated at respective sampling points.4. The method according to claim 3 , wherein the ...

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Номер записи: 51
21-02-2019 дата публикации

Methods, processes, and apparatuses for producing dyed and welded substrates

Номер: US20190055675A1
Автор: Amstutz Aaron Kenneth, Choi Jonglak, Haverhals Luke Michael, Molter Michael, Null Spencer Jacob, Tang Xiling
Принадлежит:

A dyeing and welding process may be configured to convert a substrate into a welded substrate having at least some color imparted thereto via a dye and/or coloring agent by applying a process solvent having a dye and/or coloring agent therein to the substrate, wherein the process solvent interrupts one or more intermolecular force between one or more component in the substrate. The substrate may be configured as a natural fiber, such as cellulose, hemicelluloses, and silk. The process solvent may include a binder, such as dissolved biopolymer (e.g., cellulose). After application of a process solvent comprised of a dye and/or coloring agent, the substrate may be exposed to a second application of a process solvent comprised of a binder, which second application may occur before or after a process temperature/pressure zone, process solvent recovery zone, and/or drying zone. 1. A yarn comprising:a. a plurality of fiber substrates adjacent to one another to form said yarn, wherein said plurality of fiber substrates contain a biopolymer;b. a pigment dispersed throughout at least an exterior portion of said yarn, wherein said pigment comprises a plurality of pigment particles;c. a binder surrounding a portion of said plurality of pigment particles and a portion of said plurality of fiber substrates, wherein said binder affixes said portion of said plurality of indigo particles to a portion of said plurality of fiber substrates; and,d. a binder shell surrounding a portion of said binder.2. The yarn according to wherein said binder is further defined as comprising said biopolymer.3. The yarn according to wherein said binder is further defined as comprising a second biopolymer.4. The yarn according to wherein said binder shell does not include any pigment particles therein.5. The yarn according to wherein a modulus of said yarn is at least 25% greater than a modulus of a raw yarn substrate counterpart.6. The yarn according to wherein a modulus of said yarn is at least 50% ...

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Номер записи: 52
21-02-2019 дата публикации

Half-slide matched device and its application of ultra-smoothly reconstructing yarn hairy structure

Номер: US20190055679A1
Автор: Xia Zhigang
Принадлежит:

A half-slide matched device and its application of ultra-smoothly reconstructing yarn hairy structure belong to a textile processing field. According to the half-slide matched device of the present invention, a vortex device static part and a vortex device moving part are symmetrical arranged and are of a half-slide matched. In practice, multiple devices are connected in tandem. When yarn moves, the parts of half-slide matched device are closed, for efficiently constraining and utilizing the vortex airflow. A directional jet tube one-directionally stretches hairiness on yarn surface to avoid hairiness random dispersion and entanglement, remove yarn surface impurities. Tandem-connected devices repeatedly superimpose and strengthen the reconstructed ultra-smooth yarn structure. The half-slide matched device can be opened when the yarn breaks, which facilitates splicing and maintenance. The half-slide matched device has a reasonable structure and is very convenient for wide application. 19101171581246124614321432261412141234347671216589101169101166911610616171522691610171115. A half-slide matched device of ultra-smoothly reconstructing yarn hairy structure , comprising: a first sliding rod () , a second sliding rod () , a third sliding rod () , a fixer () , a connector () , an air inlet tube () , an air outlet tube () , a vortex device static part and a vortex device moving part , wherein the vortex device static part and the vortex device moving part are symmetrical arranged and half-slide matched; the vortex device static part comprises a yarn guide tube right part () , a stationary spindle right part () and a vortex tube tight part (); the yarn guide tube right part () and the stationary spindle right part () are embedded in the vortex tube right part (); the vortex device moving part comprises a yarn guide tube left part () , a stationary spindle left part () and a vortex tube left part (); the yarn guide tube left part () and the stationary spindle left part () ...

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Номер записи: 53
21-02-2019 дата публикации

PROCESS AND SYSTEM OF DEBUNDLING FIBER TOW FOR USE IN PREFORM MATS AND MOLDING COMPOSITIONS CONTAINING SUCH FIBERS

Номер: US20190055680A1
Автор: ASUNCION Michael Z., BONTE Philippe, BOYER Dominique, Guha Probir Kumar, TOITGANS Marc-Philippe
Принадлежит:

A system for debundling fiber tow into chopped fibers is provided that has one or more reels of fiber tow, a cutting element configured to receive the fiber tow to form chopped fiber, and a tube with introduced gas flow configured to receive the chopped fiber. A moving belt is positioned under the tube to collect the chopped fiber. A dispenser is positioned along the moving belt for applying a binder or additive. A treatment chamber receives the treated chopped fiber. A process for debundling fiber tow into chopped fibers is provided that supplies one or more reels of fiber tow to a cutting system, drops the chopped fiber into a tube with introduced gas flow to debundle the chopped fiber with a vortex, collects the chopped fiber exiting the tube onto a moving belt, chemically treats the chopped fiber, and provides the chemically treated chopped to a treatment chamber. 1. A system for debundling fiber tow into chopped fibers comprising:one or more reels of fiber tow;a cutting element configured to receive the fiber tow to form chopped fiber from the one or more reels of fiber tow;a tube with an introduced gas flow configured to receive the chopped fiber and to create a debundling vortex;a moving belt positioned under the tube to collect the chopped fiber exiting the tube under gravity;a dispenser positioned along the moving belt for applying a binder or an additive to the chopped fiber; anda treatment chamber that receives the treated chopped fiber.2. The system of wherein the one or more reels of fiber tow are at least one of glass; carbon; polyimides; polyesters; or polyamides claim 1 , and combinations thereof.3. (canceled)4. The system of wherein the tube further comprises a plasma generator.5. The system of wherein the dispenser includes the binder.6. (canceled)7. (canceled)8. The system of further comprising a particulate reservoir in fluid communication with the gas flow.9. The system of further comprising a rail angled inward relative to a direction of ...

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Номер записи: 54
01-03-2018 дата публикации

HOLLOW FIBER MEMBRANE MANUFACTURING METHOD

Номер: US20180057974A1
Автор: ISHIZAKI Toshiyuki, Iwai Kenta
Принадлежит: Toray Industries, Inc.

An object of the present invention is to provide a stretching method for producing a membrane of narrowed hollow fibers while suppressing hollow fiber crushing (flattening), using a simple stretching process. The present invention relates to a method for manufacturing a hollow fiber membrane that performs narrowing of diameter of a hollow fiber by stretching, that is, includes a step of narrowing diameter of a hollow fiber by stretching the hollow fiber that has been subjected to a spinning step, using rolls each of which is formed with a groove. 16-. (canceled)7. A method for manufacturing a hollow fiber membrane , the method comprising:a spinning step of forming a hollow fiber; anda stretching step of stretching the hollow fiber using stretching rolls each of which has a groove extending in a circumferential direction of the stretching roll,wherein, in the groove of each of the stretching rolls, wall surfaces thereof facing each other come into contact with the hollow fiber.8. The method for manufacturing a hollow fiber membrane according to claim 7 , wherein a distance between the wall surfaces of the groove is larger than an outer diameter of the hollow fiber at an outermost portion in a radial direction of the stretching roll and smaller than the outer diameter of the hollow fiber at an innermost portion in the radial direction.9. The method for manufacturing a hollow fiber membrane according to claim 7 , wherein claim 7 , in the groove claim 7 , the wall surfaces facing each other form an angle that is larger than or equal to 5° and smaller than or equal to 90°.10. The method for manufacturing a hollow fiber membrane according to claim 8 , wherein claim 8 , in the groove claim 8 , the wall surfaces facing each other form an angle that is larger than or equal to 5° and smaller than or equal to 90°.11. The method for manufacturing a hollow fiber membrane according to claim 7 , wherein surfaces of the groove of each of the stretching rolls are subjected to satin ...

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Номер записи: 55
04-03-2021 дата публикации

Hydroentangled Nonwoven Fabrics Including Crimped Continuous Fibers

Номер: US20210062378A1
Автор: Andrew W. Delaney, Michael Mccloskey, Ralph A. Moody, Iii
Принадлежит: US Bank NA

Nonwovens including a plurality of crimped continuous fibers (CCFs) that are physically entangled together, such by hydroentangling. Methods of forming a nonwoven including a plurality of physically entangled CCFs are also provided.

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Номер записи: 56
28-02-2019 дата публикации

FIBER TOW TREATMENT SYSTEM AND METHOD

Номер: US20190062956A1
Автор: Dahl Jeffrey Scott, KNAKAL Charles William, SHAH Bhavesh Suresh, Wang Chen-Shih
Принадлежит:

In one embodiment, a fiber treatment system includes a rotatable nubbed roller including an axis of rotation, a surface, and a number of spaced apart nubs projecting away from the surface, the number of spaced apart nubs imparting a number of spaced apart openings in a fiber tow. In another embodiment, the fiber treatment system further includes an optionally rotatable spreader roller for flattening the fiber tow. In yet another embodiment, the loosened, but still continuous fiber tow is chopped by a downstream chopper to form short fibers with reduced tow sizes. 1. A system for treating fiber tows , comprising:a rotatable nubbed roller including an axis of rotation, a surface, and a plurality of spaced apart nubs projecting away from the surface, the rotatable nubbed roller configured to impart a plurality of openings on a first fiber tow having a first fiber tow size; anda chopper located immediately downstream of the rotatable nubbed roller, the chopper configured to cooperate with a pulling roller to chop the fiber tow having the plurality of openings to produce a second fiber tow having a second fiber tow size less than the first fiber tow size.2. The system of claim 1 , further comprising at least one flattener located upstream of the rotatable nubbed roller and configured to flatten the first fiber tow.3. The system of claim 2 , wherein the at least one flattener includes two flatteners located at different elevations.4. The system of claim 1 , wherein the projections are non-uniformly spaced along the surface claim 1 , enabling the chopper to produce fiber tow segments with non-uniform widths.5. The system of claim 1 , wherein there is no intermediate processing mechanism located between the rotatable nubbed roller and the chopper.6. The system of claim 1 , wherein there is no intermediate spool collecting mechanism located between the rotatable nubbed roller and the chopper. This application is a divisional of U.S. application Ser. No. 14/626,015 filed Feb. ...

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Номер записи: 57
09-03-2017 дата публикации

High crystalline poly(lactic acid) filaments for material-extrusion based additive manufacturing

Номер: US20170066188A1
Автор: Xiaofan Luo, Zhaokun PEI
Принадлежит: Jf Polymers (suzhou) Co Ltd

Provided is a new and better solution to the problems associated with the premature softening of PLA filaments in the additive manufacturing of three dimensional articles. It is based upon the finding that poly (lactic acid) filaments with high crystallinity offer much better resistance to heat-induced softening. The crystalline poly (lactic acid) filament can accordingly be used in the additive manufacturing of three dimensional articles without encountering the problems associated with premature softening, such as poor quality and printer jamming. The crystalline poly (lactic acid) filaments can also be used in additive manufacturing of three dimensional articles without compromising the quality of the ultimate product, reducing printing speed, increasing cost, or leading to increased printer complexity. It more specifically discloses a filament for use in three-dimensional printing which is comprised of crystalized poly (lactic acid), wherein said filament has a diameter which is within the range of 1.65 mm to 1.85 mm.

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Номер записи: 58
27-02-2020 дата публикации

AN APPARATUS AND METHOD FOR SPREADING FIBRES

Номер: US20200063291A1
Автор: ARCIDIACONO Marco, CABALLERO Andrea, Ellis John
Принадлежит: Hexcel Composites Limited

A fiber tow spreading apparatus comprising: fiber supply for supplying a fiber tow; a fiber spreader for spreading the filaments of the fiber tow to form a spread tow having an increased width; a guide member for directing the fiber tow in relation to the fiber spreader; a driver for driving the fiber tow in relation to the fiber spreader; wherein the driver comprises a moveable contacting surface to which the fiber is adhered. 1. A fiber tow spreading apparatus comprising:a. a fiber supply for supplying a fiber tow;b. a fiber spreader for spreading the filaments of the fiber tow to form a spread tow having an increased width;c. a guide member for directing the fiber tow in relation to the fiber spreader;d. a driver for driving the fiber tow in relation to the fiber spreader;wherein the driver comprises a moveable fiber adhering contacting surface to which the fiber is adhered.2. An apparatus according to claim 1 , wherein the spread tow is contacted with the driver without being exposed to any process steps which reduce the width of the tow following its exposure to the spreader.3. An apparatus according to claim 2 , wherein the tow is directly in contact with the contacting surface following its exposure to the fiber spreader.4. An apparatus according to claim 3 , wherein the fiber supply provides a plurality of fiber tows and the fiber spreader spreads the filaments of each of the plurality of fiber tows to form a continuous spread sheet.5. An apparatus according to claim 4 , wherein the contacting surface contacts the spread fiber tow.6. An apparatus according to claim 5 , wherein the contacting surface comprises a tack surface for tacking the spread fiber tows to its surface.7. An apparatus according to claim 6 , wherein the contacting surface is in the form of a resin layer.8. (canceled)9. (canceled)10. An apparatus according to claim 7 , wherein the fiber spreader comprises a spreading surface which contacts the fiber tow claim 7 , the first point of contact ...

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Номер записи: 59
11-03-2021 дата публикации

Methods, processes, and apparatuses for producing welded substrates

Номер: US20210071354A1
Автор: Aaron Kenneth Amstutz, Balmes Tejeda, Jonglak Choi, Luke Michael Haverhals, Matthew Nelson
Принадлежит: Natural Fiber Welding Inc

A welded yarn may have a cross section about a plane that is perpendicular to the longitudinal axis of the welded yarn wherein the cross-sectional area is comprised of two or more distinct portions, wherein the degree of welding in each portion is different, which may also result in different fiber volume ratios compared to raw yarn substrates.

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Номер записи: 60
27-02-2020 дата публикации

Method for manufacturing structure

Номер: US20200067069A1
Автор: Byoungkuk SON, Eunkyung Park, Jang Wook Choi, Minchul Jang, Se Ho Park, Suk Il Youn, Sung Hyeon PARK
Принадлежит: Korea Advanced Institute of Science and Technology KAIST, LG Chem Ltd

A method of preparing a structure, more particularly, a method of preparing a structure capable of ensuring a space for carrying an electrode active material by a simple method which includes an electrospinning process using a double nozzle electrospinning device and a heat treatment process.

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Номер записи: 61
15-03-2018 дата публикации

Carbon Fiber Reinforcements for Sheet Molding Composites

Номер: US20180071958A1
Автор: Ozcan Soydan, Paulauskas Felix L.
Принадлежит:

A method of processing a carbon fiber tow includes the steps of providing a carbon fiber tow made of a plurality of carbon filaments, depositing a sizing composition at spaced-apart sizing sites along a length of the tow, leaving unsized interstitial regions of the tow, and cross-cutting the tow into a plurality of segments. Each segment includes at least a portion of one of the sizing sites and at least a portion of at least one of the unsized regions of the tow, the unsized region including and end portion of the segment. 14-. (canceled)5. A reinforcement component comprising a bundle of carbon filaments , said bundle defining at least one unsized end region wherein said filaments can repel each other and separate , said bundle further defining a sized region wherein said filaments are bound together by a sizing composition.6. The reinforcement component in accordance with wherein said bundle defines two unsized end regions claim 5 , said sized region being disposed between said two unsized end regions.7. A composite comprising a resin matrix and a reinforcement component dispersed therein claim 5 , said reinforcement component comprising a plurality of bundles of carbon filaments claim 5 , each of said bundles defining at least one unsized end region wherein said filaments can repel each other and separate claim 5 , said bundle further defining a sized region wherein said filaments are bound together by a sizing composition.8. The composite in accordance with wherein a majority of said bundles define two unsized end regions claim 7 , said sized region being disposed between said two unsized end regions.9. The reinforcement component in accordance with wherein one end region includes at least a portion of a sized region.10. The reinforcement component in accordance with wherein one unsized end region includes filaments that repel each other and separate.11. The reinforcement component in accordance with wherein the filaments are surface treated to activate the ...

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Номер записи: 62
07-03-2019 дата публикации

COMPOSITE YARN AND ITS MANUFACTURE

Номер: US20190070797A1
Автор: HELMS Kevin, POOL Steven Todd
Принадлежит:

A method of manufacturing comingled yarn of carbon and thermofusible fibres comprises the steps of: feeding a tow of thermofusible fibres from a spool to a blending roller and between the spool and the blending roller, spreading the thermofusible tow; feeding a tow of carbon fibres from a spool to the blending roller; spreading the carbon fibre tow between the spool and the blending roller by applying a flow of air over the tow to urge the tow against a supporting surface over which the carbon fibres pass on their way to the blending roller; combining the thermofusible and carbon fibre tows at the blending roller. 1. A method of manufacturing comingled yarn of reinforcing and thermofusible fibres comprising the steps of:feeding a tow of thermofusible fibres from a spool to a blending roller and between the spool and the blending roller, spreading the thermofusible tow;feeding a tow of reinforcing fibres from a spool to the blending roller;spreading the reinforcing fibre tow between the spool and the blending roller by applying a flow of air over the tow to urge the tow against first and second supporting surfaces overwhich the reinforcing fibres pass on their way to the blending roller;combining the thermofusible and reinforcing fibre tows at the blending roller.2. A method according to wherein the air flow is located between the first and second supporting surfaces.3. A method according to wherein the supporting surfaces extend transverse to a direction of the air flow and to the direction of motion of the reinforcing tow.4. A method according to wherein the supporting surfaces are provided by first and second cylindrical mandrels.5. A method according to claim 2 , wherein the air flow is provided by means of a conduit and the first and second supporting surfaces are provided at the mouth of the conduit.6. A method according to wherein the air flow occurs into the conduit.7. A method according to claim 1 , wherein the thermofusible fibres are spread by the ...

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Номер записи: 63
24-03-2022 дата публикации

ANISOTROPIC HEAT-CONDUCTING RESIN MEMBER AND HEAT-TRANSMITTING SUBSTRATE

Номер: US20220089930A1
Автор: Nomura Masahiro, Takezawa Yoshitaka
Принадлежит:

One aspect of the present invention is an anisotropic heat-conducting resin member provided with a first fiber group including multiple stretched thermoplastic resin fibers that have been bundled and a second fiber group and a third fiber group that the first fiber group branches to. 1. An anisotropic heat-conducting resin member comprising a first fiber group with multiple stretched thermoplastic resin fibers that are bundled , and a second fiber group and a third fiber group that the first fiber group branches to.2. A heat-transmitting substrate comprising a substrate and the anisotropic heat-conducting resin member according to provided on the substrate.3. The heat-transmitting substrate according to claim 2 , further comprising a heat storage member that is thermally connected to the anisotropic heat-conducting resin member.4. The heat-transmitting substrate according to claim 2 , further comprising a heat insulating member that is thermally connected to the anisotropic heat-conducting resin member.5. The heat-transmitting substrate according to claim 2 , further comprising a photothermal conversion member that is thermally connected to the anisotropic heat-conducting resin member.6. The heat-transmitting substrate according to claim 3 , further comprising a heat insulating member that is thermally connected to the anisotropic heat-conducting resin member.7. The heat-transmitting substrate according to claim 3 , further comprising a photothermal conversion member that is thermally connected to the anisotropic heat-conducting resin member.8. The heat-transmitting substrate according to claim 4 , further comprising a photothermal conversion member that is thermally connected to the anisotropic heat-conducting resin member.9. The heat-transmitting substrate according to claim 6 , further comprising a photothermal conversion member that is thermally connected to the anisotropic heat-conducting resin member. The present invention relates to an anisotropic heat- ...

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Номер записи: 64
16-03-2017 дата публикации

HEATING DEVICE FOR PRODUCING CARBON FIBERS

Номер: US20170073846A1
Автор: Decker Daniel, KUNSTMANN Juergen, LINN Horst, LINN Rudolf, SCHWERDT Phillip, WOELKI Michael
Принадлежит:

A heating device for producing carbon fibers from a thread-shaped fiber starting material, wherein the heating device has a central tubular induction heating element through which the fiber starting material is moved. The tubular induction heating element is surrounded by thermal insulation. At least one mid- to high-frequency induction coil is provided outside the thermal insulation, and an inert gas flows through the central induction heating element, in particular, for carbonizing and/or graphitizing the fiber starting material. For energy optimization, a first and a second tube element is provided on the outer side of the thermal insulation. The elements are made of material that is transparent to the induction field of the mid- to high-frequency induction coil and are spaced apart from one another by an annular gap through which the inert gas flows. 1. A heating device for producing carbon fibers from a threadlike fiber starting material , wherein the heating device comprises a central tubular induction heating element through which the fiber starting material is moved , the tubular induction heating element is surrounded by a thermal insulation , the heating device is an induction coil outside the thermal insulation and the central tubular induction heating element receives a flow of inert gas , whereina heating source is formed by at least one medium to high frequency induction coil, and on the outside of the thermal insulation there are provided a first and a second tube element of material transparent to the induction field of the induction coil, which are separated from each other by an annular gap, through which the inert gas flows.2. The heating device as claimed in claim 1 , wherein gas guiding elements are provided in the annular gap between the first and the second tube element.3. The heating device as claimed in claim 1 , wherein the inert gas is guided in counterflow through the annular gap between the first and the second tube element and through ...

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Номер записи: 65
05-03-2020 дата публикации

POLYETHYLENE FIBER, MANUFACTURING METHOD THEREOF, AND MANUFACTURING APPARATUS THEREOF

Номер: US20200071852A1
Автор: CHA DONG-HWAN, Kim Seong-Hoon, PARK JONG-HOON
Принадлежит:

The present disclosure relates to a polyethylene fiber and a method for preparing thereof, and more particularly to a polyethylene fiber, a method for preparing thereof, and an apparatus for preparing thereof, which has excellent wearing and touch sensation with processing convenience into woven fabrics and knitted fabrics in use in applied products by reducing the stiffness of fiber having the same physical properties using an enforced necking method in a spinning process. 1. (canceled)2. (canceled)3. (canceled)4. (canceled)5. A polytheylene fiber obtained by one method of any one of to , having a stiffness index (k) of less than 2.5 and cut-resistance.6. The polytheylene fiber of claim 5 , wherein the fiber has a tenacity of 14 gf/d or more.7. The polytheylene fiber of claim 5 , wherein the fiber has a Max strain of 5.5% or more.8. (canceled)9. (canceled) This application claims the priority of Korean Patent Application No. 10-2014-0195384 filed on Dec. 31, 2014, in the Korean Intellectual Property Office, the disclosure of which is incorporated herein by reference.The present disclosure relates to a polyethylene fiber, a method for preparing thereof, and an apparatus for preparing thereof, and more particularly to, a polyethylene fiber, a method for preparing thereof, and an apparatus for preparing thereof, applying enforced necking to a spinning process of the polyethylene fiber, having low stiffness while maintaining excellent cut-resistance, so as to provide excellent wearing and touch sensation with processing convenience on processing into, e.g., woven fabrics and knitted fabrics.Polyethylene resins are classified into, e.g., high density polyethylene, low density polyethylene, and linear low density polyethylene. They are used as engineering plastics and films, and their fiber utilization is increasing for clothing and industrial use.In recent years, an issue in the field of textiles is superfine fibers that exhibit high performance in extreme environments, ...

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Номер записи: 66
22-03-2018 дата публикации

Method of making an acetate tow band with shape and size used for coding

Номер: US20180078887A1
Автор: Andrew Ervin McLeod, Brian Douglas Seiler, Humberto Collazo, Jeremy Kenneth Steach, Larry Wayne Renfro, Lydia J. Salyer, Scott Gregory Gaynor, Steven Anthony Wilson
Принадлежит: Eastman Chemical Co

Disclosed are fibers comprising identification fibers which can be used for tracking and tracing fibers, yarns, fiber bands, and/or articles comprising the fibers through at least part of the supply chain. Each identification fiber exhibits at least one distinct feature. Each group of distinguishable identification fibers can exhibit a taggant cross-section shape, a taggant cross-section size, or combination of the same taggant cross-section shape and same taggant cross-section size. The distinct features and the number of fibers in each group of distinguishable identification fibers can represent at least one supply chain component of the fibers. The distinct features can be detectable in an article comprising the fibers.

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Номер записи: 67
24-03-2016 дата публикации

METHOD AND DEVICE FOR OPENING FIBER BUNDLE

Номер: US20160083873A1
Автор: Kawabe Kazumasa, KOIZUMI Kenshiro, Tomoda Shigeru
Принадлежит:

A method and a device for opening a fiber bundle, capable of performing a fluctuating operation, at a high speed, of pushing a part of a conveyed fiber bundle by a contact member into a stress state and then separating the contact member from the fiber bundle so as to temporarily relax the fiber bundle, and also capable of reducing damage to the fiber bundle. The device for opening a fiber bundle includes a conveying portion for pulling out a fiber bundle Tm from a yarn feeding body and conveying it in a fiber length direction, a fiber-opening processing portion for opening the fiber bundle by moving a fiber in a width direction while bending the fiber by letting a fluid pass through the conveyed fiber bundle Tm, and a fluctuation imparting portion for rotating a contact member in a direction inclined with respect to a conveyance direction while bringing it into contact with the conveyed fiber bundle Tm and pushing a part of the fiber bundle Tm into a stress state, and then separating the contact member from the fiber bundle Tm in the stress state so as to temporarily bring the fiber bundle Tm into a relaxed state. 1. A method for opening a fiber bundle for opening a fiber bundle by pulling out the fiber bundle from a yarn feeding body and conveying the fiber bundle in a fiber length direction and by moving a fiber in a width direction while bending the fiber by letting a fluid pass through the fiber bundle to be conveyed , the method comprising the step of repeatedly performing a fluctuating operation of moving a contact member in a direction inclined at least with respect to a conveyance direction while bringing it into contact with the fiber bundle to be conveyed so as to push a part of the fiber bundle into a stress state , and then separating the contact member from the fiber bundle in the stress state so as to temporarily bring the fiber bundle into a relaxed state.2. The method for opening a fiber according to claim 1 , whereinan angle between a moving ...

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Номер записи: 68
31-03-2022 дата публикации

METHOD FOR MANUFACTURING ANTIBACTERIAL COPPER NANOFIBER YARN

Номер: US20220098763A1
Автор: LEE Hsing Hsun
Принадлежит:

A method for manufacturing antibacterial copper nanofiber yarn includes steps of: raw material mixing operation and spinning operation, where the raw material mixing operation is to mix dry copper nanopowder having a particle size of no more than 48 nm with fiber slurry; and the spinning operation includes the following steps: mixing and stirring the copper nanopowder and the fiber slurry so that the copper nanopowder is uniformly distributed in the fiber slurry to prepare a mixed material; drying the mixed material; hot-melt drawing the mixed material, i.e. drawing out yarn with the dried mixed material through a drawing machine to form first-stage yarn; stretching and extending, i.e. passing the first-stage yarn through a plurality of rollers to stretch the first-stage yarn; naturally air-cooling the first-stage yarn to form second-stage yarn; and collecting yarn, i.e. collecting the second-stage yarn to fabricate an antibacterial copper nanofiber yarn finished product. 1. A method for manufacturing antibacterial copper nanofiber yarn , comprising the following steps:raw material mixing operation: mixing dry copper nanopowder having an averaged particle size of no more than 48 nm with fiber slurry; andspinning operation, comprising the following steps:mixing and stirring the copper nanopowder and the fiber slurry so that the copper nanopowder is uniformly distributed in the fiber slurry to form a mixed material;drying the mixed material to remove excessive moisture, wherein the temperature for drying is controlled at 100° C.-150° C.;hot-melt drawing the mixed material, i.e. drawing out yarn with the dried mixed material through a drawing machine to form first-stage yarn;stretching and extending, i.e. passing the first-stage yarn through a plurality of rollers to stretch the first-stage yarn;naturally air-cooling the first-stage yarn to shape the first-stage yarn to form second-stage yarn; andcollecting yarn, i.e. collecting the second-stage yarn to fabricate an ...

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Номер записи: 69
31-03-2022 дата публикации

METHOD FOR MANUFACTURING ANTIBACTERIAL COPPER NANOFIBER BY INJECTION MOLDING

Номер: US20220098764A1
Автор: LEE Hsing Hsun
Принадлежит:

A method for manufacturing an antibacterial copper nanofiber by injection molding includes the following steps: raw material mixing operation: mixing dry copper nanopowder having an averaged particle size of not more than 48 nm with a fiber raw material to form a mixed raw material; and injection molding operation, including plasticization, filling, pressurization, cooling, ejection, and product injection. Finally, an antibacterial copper nanofiber injection product is obtained. Or in the raw material mixing operation, after mixing a dry copper nanopowder having an averaged particle size of not more than 48 nm with a fiber raw material to form a mixed raw material, mixing and granulating operation can be added, including heating, blending, extruding and granulating the mixed raw material through a mixer, and then melting to form a plurality of antibacterial copper nano-masterbatches; and then injection molding operation is performed to obtain an antibacterial copper nanofiber injection product. 1. A method for manufacturing an antibacterial copper nanofiber by injection molding , comprising the following steps:raw material mixing operation: mixing dry copper nanopowder having an averaged particle size of not more than 48 nm with a fiber raw material to form a mixed raw material; andinjection molding operation, comprising:plasticization: loading a hopper of an injection machine with the mixed raw material, transferring the mixed raw material from the hopper into a barrel, extruding the mixed raw material with a screw in the barrel to turn the mixed raw material into a molten state by frictional heating, and maintaining the melting temperature of the mixed raw material by using a heater;filling: pushing the screw to pour the molten mixed raw material into a mold cavity of a mold in a closed state through a discharge port of the barrel;pressurization: after filling the mold cavity with the molten mixed raw material, continuing to apply high pressure and adding the ...

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Номер записи: 70
12-03-2020 дата публикации

Additive for fiber strengthening

Номер: US20200079930A1
Автор: Charles Blackwell, Chunhong Lu, Ericka Ford
Принадлежит: North Carolina State University

Compositions that include a polymer and an aldaric acid, such as glucaric acid, are disclosed. The compositions may include polyvinyl alcohol and glucaric acid. The compositions may also include polyacrylonitrile and glucaric acid. In addition, the compositions may further include lignin. Also disclosed are fibers including the compositions, methods of making the fibers, and uses of the fibers.

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Номер записи: 71
25-03-2021 дата публикации

METHOD FOR MANUFACTURING FIBER-REINFORCED RESIN MOLDING MATERIAL, AND DEVICE FOR MANUFACTURING FIBER-REINFORCED RESIN MOLDING MATERIAL

Номер: US20210086404A1
Автор: KAMATA Masatoshi, KANEHAGI Junji, MIZUTORI Yukihiro, Samejima Tadao, Watanabe Yasushi
Принадлежит: MITSUBISHI CHEMICAL CORPORATION

Provided is a method for manufacturing a fiber-reinforced resin molding material having excellent productivity at low cost for manufacturing a fiber-reinforced resin molded article having excellent strength properties. Provided is a method for manufacturing a sheet-shaped fiber-reinforced resin molding material containing a plurality of cut fiber bundles and a resin impregnated between filaments of the cut fiber bundles, the method comprising an integrated material manufacturing step for obtaining an integrated material by collecting a sheet-shaped fiber bundle aggregate obtained by arranging and spreading a plurality of consecutive fiber bundles in a width direction. 1. (canceled)2. A method for manufacturing a winding body comprising:spreading a continuous carbon fiber bundle drawn out from a bobbin in a width direction to obtain an opened continuous carbon fiber bundle;separating the opened continuous carbon fiber bundle intermittently in a longitudinal direction to obtain an intermittently separated continuous carbon fiber bundle; andwinding the intermittently separated continuous carbon fiber bundle on another bobbin.3. The method according to claim 2 , wherein the opened continuous carbon fiber bundle is separated intermittently in a longitudinal direction to satisfy the following condition (1):{'br': None, 'i': 'a/L', '1≤\u2003\u2003(1),'}wherein a represents a length of a separated part in the intermittently separated continuous carbon fiber bundle and L is 5 mm.4. The method according to claim 2 , wherein the opened continuous carbon fiber bundle is separated intermittently in a longitudinal direction to satisfy the following condition (2):{'br': None, 'i': 'a/L≤', '10 \u2003\u2003(2),'}wherein a represents a length of a separated part in the intermittently separated continuous carbon fiber bundle and L is 100 mm.5. The method according to claim 2 , wherein the opened continuous carbon fiber bundle is separated intermittently in a longitudinal direction to ...

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Номер записи: 72
30-03-2017 дата публикации

Method for manufacturing ultrafine fiber

Номер: US20170088980A1
Автор: Atsuo Omaru, Hiroaki Konishi, Taku ICHIBAYASHI
Принадлежит: JX Nippon Oil and Energy Corp

A method for manufacturing ultrafine fibers having an average diameter of less than 1 urn is implemented by an apparatus including a feeder and a drawing chamber in communication with the feeder via an orifice having a pressure difference. The method includes introducing a multifilament to the drawing chamber under the condition that the ratio of the cross-section of the multifilament to the cross-section of the orifice rectifier is 50% or less, and irradiating the discharged multifilament such that the center of the multifilament melted thereby is located I to 15 mm apart vertically below the orifice outlet to melt the leading portion of the multifilament and cause the multifilament to swing at a maximum angle of 5 to 80 degrees to the central orifice axis within a conical space, such that the melted leading portion of the multifilament is drawn by an air stream generated by the pressure difference.

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Номер записи: 73
05-04-2018 дата публикации

TEXTILES AND GARMENTS FORMED USING YARNS SPACE-TREATED WITH FUNCTIONAL FINISHES

Номер: US20180094365A1
Автор: Turner David, Zolman Carmen L.
Принадлежит:

Aspects herein are directed to using a space-treating process to apply functional finishes to a yarn and incorporating the treated yarn into a textile and/or a garment to impart engineered functional properties to the textile and/or garment. 1. A textile comprising:a knit or woven construction formed using at least one space-treated yarn having at least a first yarn segment having a first functional finish applied thereto and a second yarn segment contiguous with the first yarn segment, wherein the second yarn segment does not have the first functional finish applied thereto.2. The textile of claim 1 , wherein the second yarn segment has a second functional finish applied thereto.3. The textile of claim 2 , wherein the second functional finish is different from the first functional finish.4. The textile of claim 2 , wherein the space-treated yarn further comprises a third yarn segment having a third functional finish applied thereto claim 2 , the third yarn segment contiguous with the second yarn segment.5. The textile of claim 4 , wherein the space-treated yarn further comprises a fourth yarn segment having a fourth functional finish applied thereto claim 4 , the fourth yarn segment contiguous with the third yarn segment.6. The textile of claim 1 , wherein between 25% and 75% of the yarn comprises the first functional finish.7. The textile of claim 6 , wherein between 25% and 75% of the textile comprises the first functional finish.8. The textile of claim 1 , wherein the placement of the first yarn segment comprising the first functional finish varies along a length and a width of the textile.9. The textile of claim 8 , wherein the placement of the second yarn segment varies along the length and the width of the textile.10. A garment comprising:a knit or woven construction formed using at least one yarn that has been space-treated such that the yarn comprises at least a first yarn segment having a first functional finish applied thereto and a second yarn segment ...

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Номер записи: 74
28-03-2019 дата публикации

Methods of Generating Highly-Crystalline Recombinant Spider Silk Protein Fibers

Номер: US20190093257A1
Автор: Bakhtiary Davijani Amir Ahmad, BOULET-AUDET Maxime, Guerette Paul Andre, Li Hua, SUBLER Nicole Elizabeth, Tom Steven, WANG Jessica, Wray Lindsay, Zulfiqar Zoya Nasir
Принадлежит:

Provided herein are scalable methods of processing wet-spun fiber comprising recombinant spider silk polypeptides to generate a three-dimensional crystalline lattice of beta-sheet structures in the fiber. 1. A drawn fiber comprising silk polypeptide , wherein the fiber is generated by:dissolving a powder comprising the silk polypeptide into a solvent to generate a spin dope;extruding the spin dope into a coagulation bath to form a precursor fiber;collecting the precursor fiber without drawing the precursor fiber; anddrawing the precursor fiber over a hot surface to generate a drawn fiber,wherein the drawn fiber has a crystallinity index of at least 6% as measured using X-ray diffraction.2. The drawn fiber of claim 1 , wherein said silk polypeptide is a recombinant silk polypeptide.3. The drawn fiber of claim 2 , wherein said recombinant silk polypeptide comprises two or more repeat units of a proteinaceous block copolymer.4. The drawn fiber of claim 1 , wherein said silk polypeptide is a recombinant spider silk polypeptide.5. The drawn fiber of claim 4 , wherein the recombinant spider silk polypeptide is 18B (SEQ ID NO: 1).6. The drawn fiber of claim 1 , wherein the powder comprising the silk polypeptide is comprised of at least 60% silk polypeptide by weight claim 1 , at least 70% silk polypeptide by weight claim 1 , or at least 80% silk polypeptide by weight.7. (canceled)8. (canceled)9. The drawn fiber of claim 1 , wherein the drawn fiber is drawn over the hot surface at a draw ratio of at least 2× claim 1 , at least 3× claim 1 , at least 4× claim 1 , or at least 6×.1012.-. (canceled)13. The drawn fiber of claim 9 , wherein the draw ratio is computed by determining the draw ratio at failure.14. The drawn fiber of claim 13 , wherein determining the draw ratio at failure comprises determining the distribution of maximum elongation at break of one or more precursor fibers using an apparatus designed to draw the fiber over a hot surface while increasing the draw ratio ...

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Номер записи: 75
14-04-2016 дата публикации

APPARATUS FOR STRETCHING ACRYLIC FIBERS IN A PRESSURIZED STEAM ENVIRONMENT AND AUTOMATIC FIBER DRAWING-IN DEVICE FOR SAID APPARATUS

Номер: US20160102421A1
Автор: ROVELLINI Marco
Принадлежит: M.A.E. S.P.A.

A stretching apparatus of fibre tows in a pressurized steam environment includes an elongated stretching chamber having a generally rectangular section of a low height, within which the tows are treated with saturated or overheated steam at high temperature and pressure and simultaneously undergo a mechanical stretching operation. The stretching chamber has a width sufficient to house multiple tows mutually flanked in a running plane and is formed within a stretching chest made of aluminum. The stretching chest is housed in a supporting structure, having a higher structural rigidity than the stretching chest, which includes a plurality of contact elements apt to determine a predefined position of the stretching chest with respect to a direction perpendicular to the tow running plane and to allow a limited mobility of the stretching chest in the other two mutually perpendicular directions which lie in the plane, length and width respectively. 12221391. Stretching apparatus of fibre tows in a pressurized steam environment , of the type comprising an elongated stretching chamber () having a generally rectangular section of a low height , within which the tows (T) are treated with saturated or overheated steam at high temperature and pressure and simultaneously undergo a mechanical stretching operation , wherein said stretching chamber () is of a width sufficient to house multiple tows (T) mutually flanked in a running plane characterised in that said stretching chamber () is formed within a metal stretching chest () , free to expand in the length and width directions within a surrounding rigid , pressure-resistant supporting structure (-) , which supporting structure univocally defines the position of said stretching chest () in the direction of the height of the same.23989111. Stretching apparatus as claimed in claim 1 , wherein said supporting structure (-) comprises a plurality of contact elements (-) apt to determine a predefined position of the stretching chest () ...

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Номер записи: 76
12-04-2018 дата публикации

PROCESS AND APPARATUS FOR EXPANDING MULTIPLE FILAMENT TOW

Номер: US20180100251A1
Автор: Izumi Ryutaro, Takahama Mark
Принадлежит:

A process and apparatus for spreading a multiple filament tow by passing the tow through a series of rotating discs having asymmetrical rollers mounted thereon. 1. A process for spreading a multiple filament tow wound into a spool comprising the steps of:Providing a multiple filament spool to a tensioning creel;Winding a tow from said spool through a series of rotating discs, each disc having four rotating rollers thereon, each roller being asymmetrically positioned on each disc such that the distance between the first and third roller is greater than the distance between second and fourth roller, each disc having rollers which are offset from the rollers of an adjacent disc by up to 90°;Pulling said tow through said rotating discs to spread said tow into a spread tow; andWinding said spread tow onto a take-up winder to form a spread tow spool.2. A process according to wherein said rollers rotate freely.3. The process according to wherein said rollers are locked in position.4. The process according to during said step of pulling said tow is subjected to alternating periods of tension and slack as said tow passes through said rotating discs claim 1 , generating cyclical high velocity impact with the rollers.5. The process according to wherein said multiple filament tow is formed from carbon fibers.6. An apparatus for spreading a multiple filament tow comprising:A tensioning creel having a multiple fiber tow thereon, said tow formed from a multiple filament tow wound thereon;Centering bars for positioning said tow;A series of rollers for receiving said tow from said centering bars;A dancing roller within said series of rollers to dampen vibration of said tow;A series of rotating discs;Each disc of said series of discs having four rollers thereon, each roller being asymmetrically positioned on each disc such that the distance between the first and third roller is greater than the distance between the second and fourth roller;Each disc having rollers which are offset ...

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Номер записи: 77
23-04-2015 дата публикации

POST-EXTRUDED POLYMERIC MAN-MADE SYNTHETIC FIBER WITH COPPER

Номер: US20150107214A1
Автор: Rudinger Richard F.
Принадлежит:

A method of producing synthetic yarn having copper properties. The method providing: applying a copper additive to a partially oriented yarn (POY) during one or more finishing processes of the POY to produce a copper enhanced POY having copper on the surface of the fibers of the copper enhanced POY. 1. A method of producing synthetic yarn having copper properties , the method comprising:applying a copper additive to a partially oriented yarn (POY) during one or more finishing processes of the POY to produce a copper enhanced POY having copper bonded to the surface of the fibers of the copper enhanced POY.2. The method of claim 1 , where applying the copper additive to the partially oriented yarn further comprises:applying the copper additive to the POY during a first finishing process of the one or more finishing processes and prior to one or more subsequent finishing processes of the one or more finishing processes, the one or more subsequent finishing processes being one or more of a texturing process and a spinning/twisting process.3. The method of claim 1 , where applying the copper additive to the partially oriented yarn further comprises:applying the copper additive to an undrawn POY having disoriented polymer fibers during a first finishing process to produce a copper enhanced POY having copper properties and disoriented polymer fibers.4. The method of claim 3 , further comprising:drawing the copper enhanced POY having copper properties and disoriented polymer fibers to produce a copper enhanced POY having copper properties and oriented polymer fibers.5. The method of claim 1 , where applying the copper additive to the partially oriented yarn further comprises:applying the copper additive to the POY during one or more of a texturing process and a spinning/twisting process of the one or more finishing processes.6. The method of claim 5 , where applying the copper additive to the partially oriented yarn further comprises:applying the copper additive to the POY ...

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Номер записи: 78
23-04-2015 дата публикации

POST-EXTRUDED POLYMERIC MAN-MADE SYNTHETIC FIBER WITH POLYTETRAFLUOROETHYLENE (PTFE)

Номер: US20150107215A1
Автор: Rudinger Richard F.
Принадлежит:

A method of producing synthetic yarn having polytetrafluoroethylene (PTFE) properties. The method providing: applying a PTFE additive to a partially oriented yarn (POY) during one or more finishing processes of the POY to produce a PTFE enhanced POY having PTFE on the surface of the fibers of the PTFE enhanced POY. 1. A method of producing synthetic yarn having polytetrafluoroethylene (PTFE) properties , the method comprising:applying a PTFE additive to a partially oriented yarn (POY) during one or more finishing processes of the POY to produce a PTFE enhanced POY having PTFE bonded to the surface of the fibers of the PTFE enhanced POY.2. The method of claim 1 , where applying the PTFE additive to the partially oriented yarn further comprises:applying the PTFE additive to the POY during a first finishing process of the one or more finishing processes and prior to one or more subsequent finishing processes of the one or more finishing processes, the one or more subsequent finishing processes being one or more of a texturing process and a spinning/twisting process.3. The method of claim 1 , where applying the PTFE additive to the partially oriented yarn further comprises:applying the PTFE additive to an undrawn POY having disoriented polymer fibers during a first finishing process to produce a PTFE enhanced POY having PTFE properties and disoriented polymer fibers.4. The method of claim 3 , further comprising:drawing the PTFE enhanced POY having PTFE properties and disoriented polymer fibers to produce a PTFE enhanced POY having PTFE properties and oriented polymer fibers.5. The method of claim 1 , where applying the PTFE additive to the partially oriented yarn further comprises:applying the PTFE additive to the POY during one or more of a texturing process and a spinning/twisting process of the one or more finishing processes.6. The method of claim 5 , where applying the PTFE additive to the partially oriented yarn further comprises:applying the PTFE additive to the ...

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Номер записи: 79
23-04-2015 дата публикации

METHOD FOR MANUFACTURING HEAT RESISTANT SPUN YARN AND HEAT RESISTANT SPUN YARN MANUFACTURED THEREBY

Номер: US20150107216A1
Автор: JEON Soo Hyun, PARK Young Kyoo
Принадлежит:

Disclosed is a method for manufacturing a heat resistant spun yarn having improved elasticity even through low temperature heat treatment as compared to a known technology. 1. A method for manufacturing a heat resistant spun yarn having improved elasticity , comprising:a single yarn manufacturing process of twisting a heat resistant fiber in a first direction with a twist number in a predetermined range;a first heat setting process of applying heat at a first temperature in a predetermined range to a single yarn manufactured according to the single yarn manufacturing process;a ply yarn manufacturing process of combining at least two single yarns subjected to the first heat setting process and twisting the single yarns in the first direction with a first twist number in a predetermined range;a second heat setting process of applying heat at a second temperature in a predetermined range to a ply yarn manufactured according to the ply yarn manufacturing process;a reverse twisting process of twisting the ply yarn subjected to the second heat setting process in a second direction that is contrary to the first direction with a second twist number in a predetermined range; anda third heat setting process of applying heat at a third temperature in a predetermined range to the ply yarn subjected to the reverse twisting process.2. The method of claim 1 , further comprising:a re-twisting process of twisting the ply yarn subjected to the third heat setting process in the first direction with a third twist number in a predetermined range.3. The method of claim 2 , wherein the second twist number is larger than a sum total of the first twist number and the third twist number.4. The method of claim 3 , wherein the second temperature is higher than the first temperature and the third temperature.5. The method of claim 3 , wherein the heat resistant fiber is a blend fiber including a first heat resistant fiber and a second heat resistant fiber.6. The method of claim 3 , wherein the ...

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Номер записи: 80
19-04-2018 дата публикации

Process of debundling carbon fiber tow and molding compositions containing such fibers

Номер: US20180105958A1
Автор: Christopher Hiltunen, Michael J. Hiltunen, Michael J. Siwajek, Patrick Hale, Probir Kumar GUHA, Shane Skop
Принадлежит: Continental Structural Plastics Inc

A process for debundling a carbon fiber tow into dispersed chopped carbon fibers suitable for usage in molding composition formulations is provided. A carbon fiber tow is fed into a die having fluid flow openings, through which a fluid impinges upon the side of the tow to expand the tow cross sectional area. The expanded cross sectional area tow extends from the die into the path of a conventional fiber chopping apparatus to form chopped carbon fibers, or through contacting tines of a mechanical debundler. Through adjustment of the relative position of fluid flow openings relative to a die bore through which fiber tow passes, the nature of the fluid impinging on the tow, the shape of the bore, in combinations thereof, an improved chopped carbon fiber dispersion is achieved. The chopped carbon fiber obtained is then available to be dispersed in molding composition formulations prior to formulation cure.

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Номер записи: 81
02-04-2020 дата публикации

METHOD AND SYSTEM FOR MAKING MICROCOILS AND PRODUCT THEREOF

Номер: US20200102674A1
Автор: DALNOKI-VERESS Karoly Jacob Theodoor, FOWLER Paul David Hodgkins, RAPHAEL Elie, SALEZ Thomas, Schulman Rafael
Принадлежит:

Disclosed is a method for fabricating coils including the steps of providing a liquid droplet having a diameter on length-scales ranging from hundreds of micrometers to nanometers and bringing a fiber into contact with the liquid droplet, wherein the radius of the liquid droplet is sufficiently high in comparison to the bending elastocapillary length which is defined as where E is the Young's modulus of the elastic fiber, r is the radius of the fiber and γ is the interfacial tension between the droplet and surrounding medium, so that capillary forces induce the spontaneous winding of the fiber around the droplet, to fabricate a coil with a diameter in the range from hundreds of micrometers to nanometers. Also disclosed is a system for making microcoils and to the product thereof. 2403040. The method in accordance with further comprising a preliminary step of determining a numerical factor α claim 1 , which depends on the wetting parameters of the system claim 1 , for defining the minimum radius R of the liquid droplet () allowing winding of the fiber () around the droplet () which meets the following relation R>αL.330603040. The method according to claim 1 , wherein at least one end of the fiber () is anchored by a solid support () when the fiber () is brought into contact with the liquid droplet ().430603040. The method according to claim 1 , wherein the two ends of the fiber () are anchored by solid supports () when the fiber () is brought into contact with the liquid droplet ().5303040. The method according to claim 1 , wherein the two ends of the fiber () are free when the fiber () is brought into contact with the liquid droplet ().6. The method according to claim 1 , wherein the fiber material is chosen in the group comprising: a glassy polymeric material; an elastomeric material; carbon nanotubes; metallic wire; or combinations thereof.7. The method according to claim 1 , wherein the droplet material is chosen in the group comprising: water claim 1 , glycerol ...

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Номер записи: 82
05-05-2016 дата публикации

SYSTEM AND METHOD FOR PREPARING TEXTILES WITH VOLUMIZED TOWS FOR FACILITATING DENSIFICATION

Номер: US20160122922A1
Автор: Le Costaouec Jean-Francois, Perea Paul
Принадлежит: GOODRICH CORPORATION

A transport of carbon fiber bundles, in as fabricated carbon fiber tow form, with in-line manipulation of the fiber bundles (spreading or spreading and volumization with manipulators) during fiber bundle transport is described herein. A method including positively transporting and placing a fiber bundle via a moveable fiber bundle delivery mechanism interposed between a fiber bundle supply and a fiber bundle delivery location, manipulating at least one of a fiber volume and an areal weight of the fiber bundle via an air jet device coupled between the fiber bundle delivery location and the fiber bundle supply, and controlling delivery of the fiber bundle tension from the fiber supply through an electronic unwinder is also described. 1. A textile fabrication system comprising:a supply of a fiber bundle, wherein the fiber bundle comprises at least one of a fiber entering a carbon/carbon or a ceramic composite; andan air jet device coupled between the supply of the fiber bundle and a desired lay down location, wherein the air jet device is configured to alter at least one of a fiber volume or an areal weight of the fiber bundle, wherein the air jet device is configured to form a length of volumized fiber bundle, wherein a textile is fabricated from the length of volumized fiber bundle via a fabrication process at the desired lay down location, wherein the fabrication process comprises at least one of a fabric weaving loom, a multi-axial warp knitting apparatus, or a positive delivery fiber placement fabrication process.2. The textile fabrication system of claim 1 , further comprising a first moveable positive fiber bundle delivery mechanism coupled between the desired lay down location and the supply of the fiber bundle to positively deliver the length of volumized fiber bundle to the desired lay down location; andan electronic unwinder coupled to the supply of the fiber bundle, wherein the electronic unwinder is configured to interact with the first moveable positive ...

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Номер записи: 83
24-07-2014 дата публикации

Steam Drawing Device

Номер: US20140201961A1
Автор: MIZUTORI Yukihiro, OOKI Isao, TADA Akishige
Принадлежит: MITSUBISHI RAYON CO., LTD.

A steam drawing apparatus for providing pressurized steam on running yarn to draw the yarn, comprising a steam chamber; first seal chamber adjacent to a yarn entrance of the steam chamber; and second seal chamber adjacent to a yarn exit of the steam chamber, first seal chamber and second seal chamber are each provided with a labyrinth seal section having a plurality of plate pieces, first yarn-position regulating bar is provided to prevent the running yarn from touching the plate pieces, first yarn-position regulating bar extends horizontally intersecting the running direction of the yarn at right angles, and a horizontal plane passing through the point of the first yarn-position regulating bar closest to the yarn is set at least 0.1 mm closer to the yarn than a horizontal plane passing through the tip of the plate piece closest to the yarn. 1. A steam drawing apparatus for providing pressurized steam on running yarn to draw the yarn , comprising:a steam chamber into which pressurized steam is introduced;a first seal chamber adjacent to a yarn entrance of the steam chamber; anda second seal chamber adjacent to a yarn exit of the steam chamber,wherein the steam chamber has a steam introducing portion to introduce the steam,the first seal chamber and the second seal chamber are each provided with a labyrinth seal section having a plurality of plate pieces extending respectively from the upper and lower inner-wall surfaces toward the yarn,a first yarn-position regulating bar is provided to prevent the running yarn from touching the plate pieces,the first yarn-position regulating bar extends horizontally intersecting the running direction of the yarn at right angles, and is located on the other side of the yarn from the steam introducing portion, while being positioned between the steam introducing portion and a plate piece of the second seal chamber located on the same upper or lower side of the yarn as the steam introducing section and positioned closest to the steam ...

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Номер записи: 84
03-05-2018 дата публикации

Method for Producing Yarns Separated From Reinforcing Fiber Strands

Номер: US20180119317A1
Автор: Oosawa Yukino, Ootsubo Makoto
Принадлежит: TEIJIN LIMITED

A method for producing yarns separated from reinforcing fiber strands including a process of intermittently separating fibers of the reinforcing fiber strands. 1. A method for producing yarns separated from reinforcing fiber strands comprising:a process of intermittently separating fibers of the reinforcing fiber strands,wherein the process of intermittently separating fibers of the reinforcing fiber strands is performed using a separating jig, andwherein the separating jig is provided with a separating portion having a concave-convex shape and the following conditions (1) and (2) are satisfied,(1) a height of a convex portion set to one or more times a whole thickness of the strands, and(2) curvature radius R of a distal end of the convex portion set to 0.01 mm to 50 mm.2. (canceled)3. The method for producing yarns separated from the reinforcing fiber strands according to claim 1 ,wherein the separating jig has a plurality of the separating portions.4. The method for producing yarns separated from the reinforcing fiber strands according to claim 1 ,wherein the reinforcing fiber strands are brought into contact with the separating portion of the separating jig a plurality of times.5. The method for producing yarns separated from the reinforcing fiber strands according to claim 1 ,wherein the reinforcing fiber strands are carbon fiber strands.6. The method for producing yarns separated from reinforcing fiber strands according to claim 1 ,wherein, when the reinforcing fiber strands are brought into contact with the separating jig, a whole width of the reinforcing fiber strands is 1 mm to 300 mm.7. The method for producing yarns separated from the reinforcing fiber strands according to claim 1 ,wherein the reinforcing fiber strands are widened by a widening jig before the process of intermittently separating the reinforcing fiber strands.8. The method for producing yarns separated from the reinforcing fiber strands according to claim 1 ,wherein the concave-convex ...

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Номер записи: 85
04-05-2017 дата публикации

Oxidation furnace

Номер: US20170122664A1
Автор: Lars Meinecke
Принадлежит: EISENMANN SE

An oxidation furnace for the oxidative treatment of fibers having a housing which is gas-tight, apart from passage areas for the fibers, and a process chamber located in the interior of the housing. A hot working atmosphere can be generated by an atmosphere-generating device, can be blown into the process chamber and flows through the process chamber in processing conditions in a main direction of flow. Deflecting rollers guide the fibers through the process chamber in a serpentine manner in such a way that the fibers lie next to one another as a fiber carpet ( 22 a ), wherein the fiber carpet spans a plane between opposite deflecting rollers. A flow measuring system is provided, by means of which a flow profile of the working atmosphere in processing conditions can be generated, and which comprises at least one sensor system for determining the speed of flow, the sensor system being arranged in a sensor region between two adjacent fiber carpets.

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Номер записи: 86
16-04-2020 дата публикации

METHOD AND MELT SPINNING APPARATUS FOR PRODUCING A CRIMPED, MULTICOLORED COMPOSITE THREAD

Номер: US20200115824A1
Автор: HOLLE Eike, Stündl Mathias
Принадлежит:

A plurality of colored filament bundles are initially extruded separately, cooled and each combined into a partial thread. The partial threads are then separately pre-swirled and stretched individually or as a partial composite thread formed from a plurality of partial threads. Crimping then occurs. After the crimping, the partial threads and the partial composite thread are combined into a composite thread and wound into a coil. In accordance with certain techniques, a melt spinning apparatus has a pre-swirling apparatus having a plurality of swirling nozzles, a post-swirling device having a plurality of post-swirling nozzles and a crimping device having a plurality of texturing nozzles, wherein the nozzles are designed such that an individual partial thread or a partial composite thread formed from a plurality of partial threads can optionally be processed. 1. A method for producing in a melt spinning method a crimped multicolored composite from a plurality of extruded sub-threads in the following steps:separately extruding a plurality of colored filament bundles, and cooling the filament bundles;separately gathering the filament bundles so as to form the separate sub-threads;separately pre-interlacing the individual sub-threads and/or a composite sub-thread formed from a plurality of sub-threads;drafting the sub-threads and the composite sub-thread;separately post-interlacing the individual sub-threads and/or the composite sub-thread formed from a plurality of sub-threads;separately texturizing the individual sub-threads and/or the composite sub-thread;collecting the sub-threads and/or the composite sub-thread so as to form the composite thread; andwinding the composite thread so as to form a wound package.2. The method as claimed in claim 1 , wherein at least one process parameter for the pre-interlacing of the individual sub-threads and/or the composite sub-thread is freely selectable individually for each of the sub-threads and/or the composite sub-thread.3. ...

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Номер записи: 87
27-05-2021 дата публикации

FIBER SPREADING APPARATUS

Номер: US20210156054A1
Автор: Chen Shih-Ming, Chen Yu-Cheng, Peng Chih-Kang
Принадлежит: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

A fiber spreading apparatus which is configured to spread a carbon fiber bundle, and includes a feeding roll, a winding roll, a vibrating roller, and a first nozzle. The vibrating roller is disposed between the feeding roll and the winding roll, and is in contact with the carbon fiber bundle. The vibrating roller is rotated according to an axis of rotation, and is vibrated along a vibrating direction perpendicular to the axis of rotation. The first nozzle is disposed between the vibrating roller and the winding roll, and blows the carbon fiber bundle. 1. A fiber spreading apparatus configured to spread a carbon fiber bundle , the fiber spreading apparatus comprising:a feeding roll;a winding roll;a vibrating roller disposed between the feeding roll and the winding roll, and the vibrating roller is in contact with the carbon fiber bundle, wherein the vibrating roller is rotated according to an axis of rotation, and the vibrating roller is vibrated along a vibrating direction perpendicular to the axis of rotation; anda first nozzle disposed between the vibrating roller and the winding roll and blowing the carbon fiber bundle.2. The fiber spreading apparatus of claim 1 , further comprising an auxiliary roller claim 1 , wherein the auxiliary roller is disposed between the vibrating roller and the winding roll claim 1 , and the auxiliary roller is in contact with the carbon fiber bundle.3. The fiber spreading apparatus of claim 2 , wherein the first nozzle is located between the vibrating roller and the auxiliary roller claim 2 , the carbon fiber bundle has a first surface and a second surface opposite to the first surface claim 2 , the vibrating roller is in contact with the first surface claim 2 , the auxiliary roller is in contact with the second surface claim 2 , and the first nozzle blows the second surface.4. The fiber spreading apparatus of claim 2 , wherein the auxiliary roller is a first distance from the feeding roll claim 2 , the vibrating roller is a second ...

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Номер записи: 88
12-05-2016 дата публикации

Porous Polyolefin Fibers

Номер: US20160130731A1
Автор: Antonio J. Carrillo, Mark M. Mleziva, Ryan J. McEneany, Vasily A. Topolkaraev
Принадлежит: Kimberly Clark Worldwide Inc

A polyolefin fiber that is formed by a thermoplastic composition containing a continuous phase that includes a polyolefin matrix polymer and nanoinclusion additive is provided. The nanoinclusion additive is dispersed within the continuous phase as discrete nano-scale phase domains. When drawn, the nano-scale phase domains are able to interact with the matrix in a unique manner to create a network of nanopores.

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Номер записи: 89
10-05-2018 дата публикации

Breathable Fire Resistant Fabrics

Номер: US20180127903A1
Автор: Thatcher Tyler M.
Принадлежит:

Lightweight, flexible protective fabrics for protecting a person, animal or other object from hot burning materials, hot high heat capacity and/or hot corrosive materials, such as hot molten metal, hot oily liquids (e.g., heating oil), hot gels, hot solids, hot sparks, and hot acids. The lightweight protective fabrics can be used to protect a person, animal or other object from hot molten metals, such as liquid metal zinc heated to a temperature of about 950° F. (510° C.) or greater, hot molten aluminum heated to a temperature of about 1150° F. (620° C.) or greater, burning phosphorus at temperature of about 1550° F. (843° C.) or greater, hot solid iron having a temperature of about 500° F. (260° C.) or greater, hot heating oil having a temperature of about 500° F. (260° C.) or greater, and hot hydrochloric acid having a temperature of about 300° F. (150° C.) or greater. 1. A protective fabric that is lightweight , breathable , and flexible , the protective fabric comprising:flexible yarn strands woven, knitted or otherwise joined together so as to form a protective fabric that is lightweight, breathable, and flexible,the fabric comprising about 40% to about 95% by weight of oxidized polyacrylonitrile fibers,the fabric comprising about 5% to about 60% by weight of organic strengthening fibers, including at least aramid fibers and rayon fibers,{'sup': 2', '2, 'wherein the protective fabric is free of strengthening filaments and has a weight in a range of about 2 oz/ydto about 20 oz/yd.'}2. The protective fabric of claim 1 , the fabric comprising about 50% to about 90% by weight oxidized polyacrylonitrile.3. The protective fabric of claim 1 , wherein the fabric consists of the oxidized polyacrylonitrile fibers claim 1 , aramid fibers claim 1 , and rayon fibers.4. The protective fabric of claim 1 , wherein the fabric is free of metallic claim 1 , ceramic or O-Pan filaments.5. The protective fabric of claim 1 , wherein the fabric has a weight that is in a range of about ...

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Номер записи: 90
03-06-2021 дата публикации

CONTINUOUS MULTIPLE TOW COATING REACTOR

Номер: US20210164104A1
Автор: Holowczak John E., She Ying
Принадлежит:

A tow coating reactor system includes a reactor for receiving fiber tow, a wedge situated adjacent the reactor and configured to receive the tow at a tip end, such that as the tow moves across the wedge, the wedge spreads the tow into a plurality of sub-tows. 1. A tow coating reactor system comprising:a reactor for receiving fiber tow; anda wedge situated adjacent the reactor and configured to receive the tow at a tip end, such that as the tow moves across the wedge, the wedge spreads the tow into a plurality of sub-tows, wherein the wedge includes a plurality of longitudinal grooves, each of the plurality of longitudinal grooves configured to receive one of the plurality of sub-tows, and the wedge includes a plurality of fins within each of the plurality of longitudinal grooves.2. The tow-coating reactor system as recited in claim 1 , wherein the wedge includes a tapered portion including a tip in line with the fiber tow.3. The tow-coating reactor system as recited in claim 2 , wherein the wedge includes an untapered portion downstream of the tapered portion.4. The tow-coating reactor system as recited in claim 1 , wherein the wedge has a coating.5. The tow-coating reactor system as recited in claim 4 , wherein the coating is a diamond-like carbon coating.6. The tow-coating reactor system as recited in claim 1 , wherein the fiber tow has a tow center axis claim 1 , the wedge having a wedge center axis claim 1 , and the tow center axis and the wedge center axis are aligned.7. The tow-coating reactor system as recited in claim 1 , wherein the wedge includes a first half surface and a second half surface opposite the first half surface claim 1 , and the wedge is positioned such that one of the plurality of sub-tows runs across the first half surface claim 1 , and a second of the plurality of sub-tows runs across the second half surface.8. The tow-coating reactor system as recited in claim 1 , comprising a second wedge opposite the reactor from the first wedge.9. The ...

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Номер записи: 91
18-05-2017 дата публикации

FILAMENT WEB TYPE PRECURSOR FABRIC FOR ACTIVATED CARBON FIBER FABRIC AND METHOD FOR PREPARING SAME

Номер: US20170136443A1
Автор: CHO Eun Jeong, LEE Tae Sang, YOON Joon Young
Принадлежит: KOLON INDUSTRIES, INC.

A filament web type precursor fabric for an activated carbon fiber fabric is produced by (i) spreading precursor filaments for preparing activated carbon fiber in a web state; and (ii) punching the precursor filaments for preparing activated carbon fiber spread in a web state to entangle the precursor filaments for preparing activated carbon fiber with each other. The filament web type precursor fabric has a structure in which the precursor filaments for preparing activated carbon fiber are spread in a web form and entangled with each other, and has a weight per unit area ranging from 50 to 500 g/m. An activated carbon fiber fabric manufactured by activating the filament web type precursor fabric contains yarns with improved and uniform durability and crystallinity, and an shows improved performance of forming microfine pores having a diameter of 1 to 2 nm. 1. A method for preparing a filament web type precursor fabric for an activated carbon fiber fabric , comprising:(i) spreading precursor filaments for preparing activated carbon fiber in a web state; and(ii) punching the precursor filaments for preparing activated carbon fiber spread in a web state to entangle the precursor filaments for preparing activated carbon fiber with each other.2. The method according to claim 1 , wherein the spreading process is executed by passing a bundle form of the precursor filaments for preparing activated carbon fiber between tension bars and repeatedly increasing and decreasing a tension applied to the precursor filaments for preparing activated carbon fiber.3. The method according to claim 2 , wherein 1.2 to 5.0 fold overfeed rate is endowed to the precursor filaments for preparing activated carbon fiber passing between the tension bars.4. The method according to claim 1 , wherein the spreading process is executed by injecting a bundle form of the precursor filaments for preparing activated carbon fiber in a filament web form through an air-ejector.5. The method according to ...

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Номер записи: 92
17-05-2018 дата публикации

FIBERS WITH MODIFIED CROSS SECTIONAL PROFILE

Номер: US20180135206A1
Автор: FORGERON Dean Paul, McNair Shannon
Принадлежит: THE EUCLID CHEMICAL COMPANY

A method for making a fiber reinforcement with variations in transverse cross section is disclosed. The method includes forming a fiber comprising polymeric material and exposing the fiber to a heat treatment, such that at least a portion of the polymeric material at or near said surface of said fiber is at or above the melting point temperature and substantially all of the polymeric material at or near the core is below the melting point temperature. The method further includes cooling the fiber to a temperature below the melting point temperature. 1. A method for making a fiber reinforcement with variations in transverse cross section , comprising:forming a fiber having a surface, a core, and a first transverse cross section, said fiber comprising substantially axially aligned polymeric material having a melting point temperature;exposing said fiber to a heat treatment, such that at least a portion of the polymeric material at or near said surface of said fiber is at or above the melting point temperature and substantially all of the polymeric material at or near the core is below the melting point temperature, wherein said polymeric material above the melting point temperature becomes unaligned, forming at least one fiber area having a second transverse cross section greater than said first transverse cross section and at least one fiber area having a third transverse cross section less than said first transverse cross section; andcooling said fiber to a temperature below the melting point temperature.2. The method of claim 1 , wherein said heat treatment comprises one or more of a flame claim 1 , moving hot air claim 1 , hot fluid claim 1 , a laser claim 1 , an electronic treatment claim 1 , and combinations thereof.3. The method of claim 1 , wherein said fiber reinforcements are composed of continuous filaments.4. The method of claim 1 , wherein said polymeric material is a polyolefin.5. The method of claim 1 , wherein said polymeric material comprises one or ...

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Номер записи: 93
08-09-2022 дата публикации

SYSTEM AND METHOD FOR GUIDING FIBERS

Номер: US20220281707A1
Автор: Geli Maurice, RUMY Arpad
Принадлежит: Zoltek Corporation

A fiber guide that guides fibers in a fiber processing system. The fiber guide has a surface having apertures through which fibers can pass in a direction from an upstream side of the surface to a downstream side of the surface. The apertures include at least one pair of apertures adjacent to and spaced from one another. The inlet of the first aperture is offset from the inlet of the second aperture. The offset is in the direction in which the fibers pass from the upstream side of the surface to the downstream side of the surface. A distance (d1) between the inlet of the first aperture and the inlet of the second aperture is larger than a distance (d2) between the first aperture and the second aperture measured transverse to the direction in which the fibers can pass. 1. A fiber guide configured to guide fibers in a fiber processing system , the fiber guide comprising:a surface defining a plurality of apertures through which fibers can pass in a direction from an upstream side of the surface to a downstream side of the surface, each of the apertures having an inlet positioned to receive fibers from the upstream side of the surface;the plurality of apertures including at least one pair of first and second apertures adjacent to and spaced from one another;the inlet of the first aperture of the at least one pair of first and second apertures being offset from the inlet of the second aperture of the at least one pair of first and second apertures, the offset being in the direction in which the fibers can pass from the upstream side of the surface to the downstream side of the surface, wherein a distance d1 between the inlet of the first aperture and the inlet of the second aperture is larger than a distance d2 between the first aperture and the second aperture measured transverse to the direction in which the fibers can pass.2. The fiber guide of claim 1 , further comprising a board defining the surface and a plurality of eyelets coupled to the board at positions ...

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Номер записи: 94
28-05-2015 дата публикации

PROCESS OF DEBUNDLING CARBON FIBER TOW AND MOLDING COMPOSITIONS CONTAINING SUCH FIBERS

Номер: US20150147543A1
Автор: Guha Probir Kumar, Hiltunen Michael J., Hiltunene Christopher, Siwajek Michael J., Skop Shane
Принадлежит:

A process for debundling a carbon fiber tow into dispersed chopped carbon fibers suitable for usage in molding composition formulations is provided. A carbon fiber tow is fed into a die having fluid flow openings, through which a fluid impinges upon the side of the tow to expand the tow cross sectional area. The expanded cross sectional area tow extends from the die into the path of a conventional fiber chopping apparatus to form chopped carbon fibers, or through contacting tines of a mechanical debundler. Through adjustment of the relative position of fluid flow openings relative to a die bore through which fiber tow passes, the nature of the fluid impinging on the tow, the shape of the bore, in combinations thereof an improved chopped carbon fiber dispersion is achieved. The chopped carbon fiber obtained is then available to be dispersed in molding composition formulations prior to formulation cure. 1. A process for debundling carbon fiber tow into chopped carbon fibers comprising:feeding the carbon fiber tow defined by a bundle cross sectional area and a tow surface into a die having a bore, the die having at least two fluid flow openings, where the bore is sized larger than the bundle cross sectional area with the proviso that if the at least two fluid flow openings are two openings, that the two openings are not diametrically positioned through a circular cross sectional bore;impinging on the carbon fiber tow through a first opening of the at least two fluid flow openings with a fluid at a flow rate to expand carbon fiber tow to an expanded cross sectional area greater than the bundle cross sectional area within said bore;chopping the expanded cross sectional area carbon fiber tow upon exiting said die to form the chopped carbon fiber.2. The process of wherein the carbon fiber tow has at least 1 claim 1 ,000 carbon fibers therein.3. (canceled)4. The process of wherein chopping occurs proximal to a terminal face of said die.5. The process of wherein the bore is ...

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Номер записи: 95
09-05-2019 дата публикации

FIBER BUNDLE JOINING APPARATUS AND FIBER BUNDLE JOINING METHOD

Номер: US20190135576A1
Автор: SYUTO Kazutoshi
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

A fiber bundle joining apparatus includes: a support table configured to hold a terminal end portion side of a first fiber bundle; a roller mechanism having a roller around which a leading end portion side of a second fiber bundle is capable of being wound; a movement mechanism configured to perform a first movement for moving the roller mechanism to the vicinity of the terminal end portion side of the first fiber bundle, and a second movement for further moving the roller mechanism on the terminal end portion side of the first fiber bundle to create a state where the leading end portion side of the second fiber bundle is stacked on the terminal end portion side of the first fiber bundle; and a thermocompression bonding mechanism configured to pressure-bond the first fiber bundle and the second fiber bundle. 1. A fiber bundle joining apparatus comprising:a support table configured to hold a terminal end portion side of a first fiber bundle impregnated with resin;a roller mechanism having a roller around which a leading end portion side of a second fiber bundle impregnated with resin is able to be wound;a movement mechanism configured to perform a first movement for moving the roller mechanism that is in a state where the leading end portion side of the second fiber bundle is wound around the roller, to a vicinity of the terminal end portion side of the first fiber bundle held on the support table, and a second movement for further moving the roller mechanism on the terminal end portion side of the first fiber bundle after the first movement to create a state where the leading end portion side of the second fiber bundle is stacked on the terminal end portion side of the first fiber bundle; anda thermocompression bonding mechanism configured to integrally pressure-bond the terminal end portion side of the first fiber bundle and the leading end portion side of the second fiber bundle stacked on the support table.2. The fiber bundle joining apparatus according to claim ...

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Номер записи: 96
04-06-2015 дата публикации

DEVICE FOR SHAPING A THREAD-LIKE MATERIAL

Номер: US20150152576A1
Автор: Brenk Siegfried, Filz Ingo, Schnitzler Jurgen, Tetzlaff Georg
Принадлежит:

A device for shaping at least one thread-like material (), which is formed in a forming unit and is deposited on a transporting device () for the subsequent thermosetting process, wherein a retaining means () and a drivable, curved depositing tube () are arranged one after the other in the thread transporting direction. 11641415225. Device for shaping at least one thread-like material () , which is formed in a forming unit and is deposited on a transporting device () for the subsequent thermosetting process , characterised in that a retaining means ( , , , ) and a drivable , curved depositing tube () are arranged one after the other in the thread transporting direction.212. Device according to claim 1 , characterised in that a switching element () is present at the workstation to select the alternative operating positions to produce straight set or frieze yarn.3. Device according to claim 1 , characterised in that a central adjusting mechanism is present to select the alternative operating positions.441415. Device according to claim 1 , characterised in that the retaining means is configured as at least one pivotable retaining flap ( claim 1 , claim 1 , ).5225. Device according to claim 1 , characterised in that the retaining means is configured as a side wall () of the depositing tube ().641415. Device according to claim 4 , characterised in that the at least one retaining flap ( claim 4 , claim 4 , ) can alternatively be operated as a frieze mechanism or can be locked in a position pivoted back from the thread path.756. Device according to claim 1 , characterised in that the depositing tube () is alternatively driven or is fixed in an angular position allowing the depositing of the thread material on the transporting device ().85. Device according to claim 7 , characterised in that the depositing tube () can be rotatably driven.95. Device according to claim 7 , characterised in that the depositing tube () can be driven in an oscillating manner.10414155. Device ...

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Номер записи: 97
04-06-2015 дата публикации

METHOD AND DEVICE FOR CONTINUOUSLY PROCESSING A THREAD-LIKE MATERIAL

Номер: US20150152577A1
Автор: Brenk Siegfried, Filz Ingo, Schnitzler Jurgen, Tetzlaff Georg
Принадлежит:

A method for continuously processing a thread-like material with a plurality of method steps and a device for carrying out the method, wherein a feed mechanism (), a treating () and depositing device (), a transporting device (), a thermosetting mechanism () and a length compensating mechanism () are arranged in a common closed system () and the closed system () differs from the surroundings in its interior by at least one first physical property and sub-systems () that are shielded from one another are present within the system () for the various method steps, to which sub-systems supply mechanisms () are connected, which produce at least partially different temperatures in the sub-systems () as the second physical property. 11110353614321375. Method for continuously processing a thread-like material () with a plurality of method steps , characterised in that the thread-like material () is deposited by means of a feed mechanism () and a treating () and depositing device () on a transporting mechanism () to pass a thermosetting mechanism () and in that after the thermosetting , the thread-like material () runs through a length compensating mechanism () to ensure a uniform further processing , the different method steps being carried out in a closed system () , which differs in its interior with respect to at least one first physical property from the surroundings and in that at least two method steps in turn differ from one another with respect to a second physical property.25. Method according to claim 1 , characterised in that the closed system () differs from the surroundings in its interior owing to substantially the same pressure.3. Method according to claim 1 , characterised in that the second physical property is the temperature.4103536143237553132333536375252627313233353637. Device for carrying out the method according to claim 1 , characterised in that a feed mechanism () claim 1 , a treating () and depositing device () claim 1 , a transporting device () ...

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Номер записи: 98
02-06-2016 дата публикации

OPENING APPARATUS OF FIBER BUNDLE

Номер: US20160153126A1
Автор: Kang Hyun Min, Yun Deok Woo
Принадлежит:

An opening apparatus of a fiber bundle includes a horizontal vibration device including a plurality of horizontal vibration rolls to apply horizontal direction vibration to the fiber bundle according to a type of the fiber bundle, where the plurality of horizontal vibration rolls have different shapes. In the opening apparatus, the opening efficiency of the fiber bundle may be increased by applying horizontal vibrations to the fiber bundle through the plurality of horizontal vibration rolls according to a type of the fiber bundle. 1. An opening apparatus of a fiber bundle , comprisinga horizontal vibration device including a plurality of horizontal vibration rolls configured to apply horizontal direction vibration to the fiber bundle according to a type of the fiber bundle,wherein the horizontal vibration rolls have different shapes.2. The opening apparatus of claim 1 , wherein one of the plurality of horizontal vibration rolls comprises a first horizontal vibration roll having a cylindrical shape in which a diameter becomes gradually reduced in a direction of an exterior circumference from a center thereof.3. The opening apparatus of claim 2 , wherein another of the plurality of horizontal vibration rolls comprises a second horizontal vibration roll having a cylindrical shape in which a diameter becomes gradually reduced in a direction of an exterior circumference from a center thereof.4. The opening apparatus of claim 3 , wherein another of the plurality of horizontal vibration rolls comprises a third horizontal vibration roll having a cylindrical shape having a same diameter.5. The opening apparatus of a fiber bundle of claim 4 , wherein another of the plurality of horizontal vibration rolls comprises a fourth horizontal vibration roll having a cylindrical shape having a same diameter and including protrusions and depressions formed at an exterior circumference of the fourth horizontal vibration roll.6. The opening apparatus of claim 5 , wherein when the fiber ...

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Номер записи: 99
15-09-2022 дата публикации

A Process for Manufacturing Lyocell Filament Yarn and an Apparatus Thereof

Номер: US20220290329A1
Автор: DAGUR Harendra Singh, DUTTA Suvankar Madhusudan, KALE Bandu Madhukar, LIMBANI Manishkumar Govindbhai, MOHITE Lalaso Vishnu, Nagarkar Shailesh Prakash, PANKAJ Srivastava, SHARMA Roop Kishore, SHINGOTE Santosh Shivaji, THAKRE Shirish Sheshrao
Принадлежит:

The present invention relates to a process for manufacturing lyocell filament yarn with improved mechanical properties and an apparatus thereof. The process involves washing of filament yarn with sequential decrease in NMMO concentrations and filament yarn drying under relaxed conditions. Additionally, the present invention also provides a compact washing and drying apparatus that uses controlled air gap spinning thereby resulting in production of LFY under relaxed conditions and also having a higher mechanical properties & productivity. 1. A process for manufacturing lyocell filament yarn with improved mechanical properties , the process comprising:a) preparing a homogenous solution of cellulose in concentrated NMMO solution to obtain cellulose dope, and storing said cellulose dope in a lyocell dope vessel;b) pumping stored cellulose dope via a metering pump into a spin pack containing a spinneret that extrudes the cellulose dope as spun filaments;c) stretching extruded spun filament yarn using a winder while passing filaments through an air-gap at controlled conditions and in a regeneration bath containing a solution for partial regeneration of the extruded spun filament yarn;d) guiding the partially regenerated filament yarn to filament guiding drum which passes said filament yarn to a main drum spinning at a speed less than the winder speed, said main drum having a filament yarn washing section and a filament yarn drying section wherein the filament yarn is fully regenerated in the filament yarn washing section by passing it through sequential washing zones, each successive washing zone containing a washing solution of successively decreasing concentration of NMMO, said concentration successively decreasing up to 0% by weight of NMMO in filament, maintained by circulating system, ande) drying the washed filament yarn on the filament yarn drying section at a temperature selected from the range of 40° C. to 100° C.2. The process as claimed in claim 1 , wherein the ...

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