ЦЕЛЛЮЛОЗНОЕ ШТАПЕЛЬНОЕ ВОЛОКНО, ЕГО ПРИМЕНЕНИЕ И НАПОЛНИТЕЛЬ

Изобретение относится к технологии получения химических волокон, в частности к получению множества многолепестковых целлюлозных штапельных волокон, которые могут быть использованы в качестве наполнителя одеял, подушек, матрацев, материала для обивки, одежды и т.д. Целлюлозные штапельные волокна в поперечном сечении имеют три или более лепестков, причем линейная плотность волокна составляет от 1,0 до 3,10 дтекс, предпочтительно больше чем 3,10 дтекс, предпочтительно более 5,10 дтекс и наиболее предпочтительно от 5,6 до 10 дтекс, в частности более 6,10 дтекс, особенно от 6,3 до 10 дтекс. Модуль волокна в мокром состоянии отвечает формуле: ! модуль волокна в мокром состоянии (cN)≥0,5·√T, где Т - линейная плотность волокна в дтекс; прочность на разрыв волокна отвечает формуле: прочность на разрыв волокна (cN)≥1,3·√/T+2·Т, где Т линейная плотность волокна в дтекс. Множество указанных волокон в качестве наполнителя обладает высокой влагопоглощаемостью при низкой плотности и большом объеме. 3 ...

СПОСОБ ПОЛУЧЕНИЯ СМЕШАННОЙ ПРЯЖИ В ВОЗДУШНОМ ПОТОКЕ, УСТРОЙСТВО ДЛЯ ЕГО ОСУЩЕСТВЛЕНИЯ И УСТРОЙСТВО ДЛЯ ПРОМЫШЛЕННОГО ПОЛУЧЕНИЯ СМЕШАННОЙ ПРЯЖИ В ВОЗДУШНОМ ПОТОКЕ

Для получения преимущественно свободной от скручивания смешанной пряжи пневмотекстурированием потоком ударной волны с образованием петель, которая обладает всеми преимуществами комбинации бесконечной комплексной нити со штапельными волокнами и может использоваться в промышленной практике. Согласно способу бесконечную комплексную нить подают в нагнетаемом воздушном потоке с набеганием, направляют ее по расширяющемуся каналу ускорения фильеры пневматического текстурирования и раскрывают в раскрывшуюся комплексную нить воздушным потоком, засасывают и примешивают штапельные волокна с питающего устройства через всасывающе-смесовую головку. Воздушный поток переводят в поток с ударной волной, образующий петли на элементарных нитях, которыми охватываются и ввязываются штапельные волокна, после чего в зоне плетения текстурированную смешанную пряжу стягивают почти под прямым углом. В устройстве для осуществления способа указанный технический результат достигается тем, что оно содержит фильеру для ...

УСОВЕРШЕНСТВОВАНИЯ В КОМПОЗИЦИОННЫХ МАТЕРИАЛАХ И СТРУКТУРАХ, А ТАКЖЕ УСОВЕРШЕНСТВОВАНИЯ, ИМЕЮЩИЕ ОТНОШЕНИЕ К КОМПОЗИЦИОННЫМ МАТЕРИАЛАМ И СТРУКТУРАМ

... 1. Компонент композиционного материала, имеющий отрицательный эффективный коэффициент Пуассона, который содержит первый компонент и второй компонент, упомянутые первый компонент и второй компонент простираются вдоль оси, причем первый компонент предусмотрен вокруг второго компонента в виде одного или более витков, эти один или более витков разнесены в продольном направлении относительно упомянутой оси, а изменение растягивающей или сжимающей нагрузки на первый компонент вызывает изменение радиального положения второго компонента относительно этой оси. 2. Компонент композиционного материала по п.1, отличающийся тем, что первый компонент имеет более высокий модуль упругости, чем второй компонент. 3. Компонент композиционного материала по п.1 или 2, отличающийся тем, что он имеет первый компонент, предусмотренный вокруг второго компонента по спирали так, что изменение растягивающей или сжимающей нагрузки на первый компонент вызывает последующее изменение диаметра спирали первого компонента ...

ФАСОННЫЕ МОНОВОЛОКНА С ПАЗАМИ И ТКАНИ, ИЗГОТОВЛЕННЫЕ ИЗ НИХ

... 1. Моноволокно, имеющее по меньшей мере один проходящий в продольном направлении паз, выполненный на его поверхности. 2. Моноволокно по п.1, в котором каждый паз имеет открытый угол, составляющий меньше 180°. 3. Моноволокно по п.1, в котором форма поперечного сечения паза является одной из следующих: U-образная, форма замочной скважины, С-образная, V-образная, квадратная, прямоугольная или трапецеидальная. 4. Моноволокно по п.1, которое по форме является квадратным или прямоугольным, с верхней поверхностью моноволокна, имеющей такой же профиль, как и нижняя поверхность. 5. Моноволокно по п.1, которое по форме является квадратным или прямоугольным, с верхней поверхностью моноволокна, имеющей профиль, отличающийся от профиля нижней поверхности. 6. Моноволокно по п.5, в котором паз (пазы) в верхней поверхности смещен (смещены) от паза (пазов) в нижней поверхности. 7. Моноволокно по п.4, в котором паз (пазы) в верхней поверхности находится (находятся) на одной линии с пазом (пазами) в нижней ...

Verfahren und Vorrichtung zur Verwirbeln von Garne

TEXTILFAEDEN, VERFAHREN ZU IHRER HERSTELLUNG SOWIE AUS DEN FAEDEN HERGESTELLTE GARNE

TEXTILPRODUKT VON TYP STAPELFASERGARN, VERFAHREN UND VORRICHTUNG ZU SEINER HERSTELLUNG

VERFAHREN UND VORRICHTUNG ZUR HERSTELLUNG VON AUS MEHREREN FAEDEN BESTEHENDEN UND GEGEBENENFALLS VOLUMINISIERTEN ENDLOSGARNEN, INSBESONDERE AUS GLASFAEDEN, SOWIE NACH DEM VERFAHREN HERGESTELLTE GARNE

Improvements in the curling of yarns for weaving

... 501,207. Curling yarns. AMBLER, S. Aug. 24, 1937, No. 23137. [Class 120 (iii)] Warp twisted yarns are curled by a device comprising a hook, corkscrew, or straight rod supported by a stationary hollow guide member between the yarn supply and a takeup bobbin with a flyer or ring twisting device, the yarn pass ing from the supply through the guide member to the curling member. As shown, the yarn Y is threaded through a slot A<1> in the hollow guide member A and passes through the guide member and over the hooked end B<3> of the rod B which is adjustably secured in the member A by a set screw B<2>.

Method and apparatus for the manufacture of a mixed yarn and mixed yarn

Improvements in staple fibre blends

Yarn, which when incorporated into fabrics e.g. carpets, is intended to reduce pilling and fuzzing, is spun from a blend of crimped synthetic staple fibres, one component (constituting 25-90% by weight of the blend) consisting of low-denier, low-toughness, long polyamide fibres and the other of high-denier, high-toughness, short fibres. The respective fibres may have 8-22 and 6-12 crimps per inch, denier 8-15 and 20-40, staple lengths at least three inches and not more than two inches. "loop-toughness" (see U.S.A. Specification 3,050,822) of 2-27 and at least 50, and the longer fibres may comprise frequently spaced weak spots e.g. at least one per inch, along their length. All or some fibres may contain small internal voids and the short fibres may contain 2-20% by weight of a poly (alkyl ether) in order to render the yarns and fabrics resistant to soiling and the accumulation of static changes. The fibres may be initially mixed e.g. manually, and a complete and intimate blend allowed to ...

Improvements relating to artificial textile yarns and fabrics made therefrom

Yarn consists of continuous fine and coarse filaments, the former being from one-third to one-eighth of the denier of the latter and at least twice as numerous and having, suitably, a total denier of twice to one-half that of the coarse filaments. The filaments may be of a cellulose derivative such as cellulose acetate, triacetate, propionate or butyrate, reconstituted cellulose such as viscose and cuprammonium or as produced by saponification of cellulose acetate filaments, or they may be of synthetic materials such as polyhexamethylene adipamide, polyethylene terephthalate or polyacrylonitrile. The fine filaments may be of "roundish" cross-section and the coarse filaments may be of elongated cross-sectional shape having a length-to-breadth ratio of at least 5 : 2 and curved into a horse-shoe or S-form or straight with bulbous ends. The fine and coarse filaments may be extruded through separate jets and associated immediately after extrusion, or they may be extruded simultaneously, through ...

Crimped hollow fibers for fluid separations, bundles containing the hollow fibers, and apparatus and process for separating fluids

Hollow, semi-permeable fibers which are intended for use in fluid separations have crimps with amplitudes up to 50% of the external diameter of the fiber and an average crimp period of less than 5 cms. The fibers are sufficiently rigid to retain its crimp form during fluid separation. Preferred fibers have an outside diameter of 150-800 microns, a wall thickness of 50-200 microns and a crimp amplitude of 15-250 microns. The tensile modulus is at least 40 kg/mm<2>. The relatively low amplitude crimps enable good fluid dispersion through a bundle comprising substantially parallelly-oriented hollow fibers such that shell-side (i.e., the exterior sides of the hollow fibers) feed of the fluid mixture to be treated can be attractive, even when the flow of the feed is predominantly axial to the hollow fibers. Shell-side feed of the fluid mixture to be treated is often particularly advantageous since the fluid mixture can frequently be recovered from the fluid separation with a relatively low pressure ...

TEXTILE THREAD AND PROCEDURE FOR ITS PRODUCTION

GESPINST AUS EINEM GEMISCH VON CHEMIEFASERN

GESPINST FROM A MIXTURE OF CHEMICAL FIBRES

FRAYING RANK AND PROCEDURE FOR ITS PRODUCTION.

MULTIPLE COMPONENTS ROTOR GESPONNENES YARN

HYBRID CABLE, PROCEDURE FOR ITS PRODUCTION AND COMPOUND FABRIC THE SAME CONTAINING

YARN-WELL-BEHAVED PRODUCT AS WELL AS PROCEDURE AND DEVICE FOR THE PRODUCTION OF THE SAME

FIBROUS BUNDLE

YARN OR YARNLIKE PRODUCT KEPT TOGETHER BY CIRCUMJACENT POLYMER MATERIAL, AND METHOD FOR PRODUCING SAID PRODUCT

MULTIFILAMENT YARN HAVING NOVEL CONFIGURATION A METHOD FOR PRODUCING THE SAME

MIXED CROSS-SECTION STAPLE FILAMENT MIXTURES AND YARN THEREFROM

CONTINUOUS FILAMENT YARN WITH WOOL-LIKE HAND

A yarn for producing fabrics with a wool-like hand, by combining textured filaments with longer filaments preferably of larger average denier. The longer filaments thus protrude in loops from the yarn bundle.

PROCESS AND DEVICE FOR UNWINDING PART OF A TEXTILE THREAD

Procédé pour préparer l'extrémité d'un fil textile destinée à être rattachée à l'extrémité d'un autre fil ou à être introduite dans un dispositif de filage selon lequel on défait une portion de ce fil textile en le tenant par une de ses extrémités et en soumettant l'autre extrémité à l'action aérodynamique d'un écoulement gazeux s'écoulant en direction opposée à l'extrémité tenue. L'on met en vibration un élément vibrant, et l'on communique les vibrations de cet élément aux fibres de la portion pour réduire le coefficient de frottement entre ces fibres et provoquer leur dislocation et l'on entraîne les fibres ainsi disloquées, non retenues à ladite extrémité, dans ledit écoulement gazeux. Et un dispositif pour la mise en oeuvre de ce procédé.

MIXED CROSS-SECTION STAPLE FILAMENT MIXTURES AND YARN THEREFROM

Crimped polyamide staple filament mixtures and yarn therefrom having a high bulk, high luster free from objectionable sparkle and glitter, and improved resistance to soiling are produced. The novel yarn is a blend of trilobal polyamide filaments having different cross-sections, i.e., modification rations, within specified ranges and specified proportions for each cross-sectional type of filament. This yarn has particular utility as carpet yarn. The method for producing the novel yarn comprises blending the above-described mixed cross-section filaments.

ARTIFICIAL HAIR

ARTIFICIAL HAIR An artificial hair consisting essentially of a monofilament having a corollaceous cross-section, and a root formed at one end of the monofilament having a corollaceous crosssection larger than that of the monofilament proper.

CRIMPED YARN AND PROCESS FOR MAKING SAME

Fil frisé d'aspect "rond" constitué de brins à double constituant en polymères organiques. Chacun des brins possède une section transversale allongée et la position de l'interface des deux constituants dans cette section varie d'un brin à l'autre de sorte que le fil possède à la fois au moins deux types de brins: ceux dont cette interface est disposée sensiblement selon le petit axe ou une parallèle du petit axe et ceux dont elle est disposée selon le grand axe ou une parallèle au grand axe de la section transversale. Et, précédé d'obtention d'un tel fil caractérisé par le fait que l'on extrude deux compositions filables présentant entre elles une différence de retrait et de module d'élasticité à travers des orifices de filière de forme allongée dont le rapport entre le grand et le petit axe est au moins de deux et que l'on fait arriver les deux compositions de manière différente d'un orifice à l'autre par rapport à sa section, l'interface des deux compositions coupant cette section au ...

FRACTURABLE TEXTILE FILAMENTS FOR PRODUCING YARNS HAVING FREE PROTRUDING ENDS AND PROCESS

Erfassung des Abganges in einer Faservorbereitungsanlage.

Die Erfindung betrifft eine Vorrichtung und ein Verfahren zur Erfassung eines Abganges in einer Faservorbereitungsanlange mit einer Mehrzahl von Reinigungsstellen und einer Transportleitung (12), welche mit den Reinigungsstellen verbunden und in einen zentralen Behälter (21) geführt ist. Der zentrale Behälter (21) ist mit einer Unterdruckquelle (26) verbunden und der Abgang von jeweils einer Reinigungsstelle wird durch die Transportleitung (12) mit Transportluft (22) zum zentralen Behälter (21) gesaugt. Im zentralen Behälter (21) wird der Abgang von der Transportluft (22) getrennt und in eine Waage (24) übergeben und gewogen. Mit einer auf einen Innenraum der Waage (24) gerichteten Kamera (25) wird der sich in der Waage (24) befindliche Abgang optisch erfasst.

Garn.

Yarn spun yarn appearance based on polyamide.

Fil à aspect filé de fibres à base de polyamide.

Verfahren zur Herstellung eines zusammengesetzten Garnes und nach diesem Verfahren hergestelltes Garn

Verfahren zur Herstellung lufthaltiger synthetischer Garne und Verwendung derselben

Synthetisches Garn

Verfahren zur Herstellung von Seilerwaren

Textilware

Verfahren zur Herstellung von Chemiefaser- und/oder Kunststoffgespinsten und nach diesem Verfahren hergestelltes Gespinst

Synthetisches Garn

Bandförmiges mattiertes Monofilament aus synthetischem faserbildendem Material und Verfahren zu dessen Herstellung, sowie Spinndüse zur Ausführung des Verfahrens

Gesponnenes Garn und Verfahren zu seiner Herstellung

Verfahren zur Herstellung von Textilmaterial

Fil textile et procédé pour sa fabrication

Verfahren zur Herstellung von Textilien, bestehend aus voluminösen, elastischen Stapelfasergarnen

Endlosfilamentgarn sowie Verfahren und Vorrichtung zu seiner Herstellung

Verfahren und Vorrichtung zur Herstellung eines mindestens teilweise aus texturierten synthetischen Fäden bestehenden Strickgarnes

Process for making crepe knitted fabric used in making

A process for making an expanding knitted fabric having an improved superficial appearance and composed of a mixed filament in which 2 different, adhering, synthetic, thermoplastic, linear, polymer components having different shrinkage characteristics are disposed side by side or one within the other. A twist is applied to the filament to give at least an average of 20 degrees of rotation in the junction stage in the length of filament corresponding to the length of one stitch of the fabric to be knitted.

Aus Stapelfasern bestehendes Garn

Verfahren zur Herstellung von Garnen aus Endlos- und Fasermaterial

Composite synthetic yarn from more than two types of

Synthetic textile yarn is composed of more than two types of thermoplastic filaments, with different flex resistances, the amount of filaments with the greatest flex resistance being more than 10% and the flex resistance of these filaments being less than 10 x the average flex resistance of the other filaments. The composite yarn has a considerably improved appearance, and excellent mechanical properties. Crimped yarns with high bulkiness can be produced.

Polyamide and polyester continuous filament prodn.

Highly twisted, fixed synthetic continuous filament prodn. comprises (1) highly twisting the quick-spun continuous filaments, which is incompletely drawn, i.e. pre-oriented, on the same quick-spinning machinery, and (2) after-drawing and simultaneously fixing the twisted yarns in a heating chamber.High-twist polyester and polyamide yarns, e.g. for fabrics and curtains, can be produced economically in a 2-step process. Pre-oriented yarn prodn. on quick-spinning machinery pref. takes place at 3000-5000 m/min. After drawing ratio is 1.2-1.6:1.

PROCEDURE FOR SPIDERS OF A YARN FROM TWO DIFFERENT PILE FIBER COMPONENTS AND IN THE PROCEDURE MANUFACTURED YARN.

THREAD HAS SPUN THREAD APPEARANCE BASED ON POLYAMIDE

СПОСОБ ПОЛУЧЕНИЯ КОМПЛЕКСНОЙ ПОЛИОЛЕФИНОВОЙ НИТИ ФОРМОВАНИЕМ ИЗ РАСПЛАВА И ПРЯЖА, ИЗГОТОВЛЕННАЯ ИЗ НЕЁ

Способ получения полиолефиновой комплексной нити (30), включающий подачу полиолефина и зародышеобразующего агента на вход (13) экструдера (12), содержащего смешивающий коллектор (11), посредством которого экструдируют элементарные нити (9) через фильеру (14) в охлаждающую ванну (16); сбор элементарных нитей с помощью вытяжных валиков (18, 20) для образования пучка волокон (28); пропускание пучка волокон (28) через прижимные валики (23, 24, 25, 26) к аппликатору (22) для нанесения отделочного препарата; пропускание пучка волокон (28) через термокамеру (43) и вытяжку с помощью вытяжных валиков (32, 34) для получения комплексной нити (30) и намотку комплексной нити на паковку (40).

СПОСОБ ПОЛУЧЕНИЯ КОМПЛЕКСНОЙ ПОЛИОЛЕФИНОВОЙ НИТИ ФОРМОВАНИЕМ ИЗ РАСПЛАВА И ПРЯЖА, ИЗГОТОВЛЕННАЯ ИЗ НЕЁ

Способ получения полиолефиновой комплексной нити (30), включающий подачу полиолефина и зародышеобразующего агента на вход (13) экструдера (12), содержащего смешивающий коллектор (11), посредством которого экструдируют элементарные нити (9) через фильеру (14) в охлаждающую ванну (16); сбор элементарных нитей с помощью вытяжных валиков (18, 20) для образования пучка волокон (28); пропускание пучка волокон (28) через прижимные валики (23, 24, 25, 26) к аппликатору 22 для нанесения отделочного препарата; пропускание пучка волокон (28) через термокамеру (43) и вытяжку с помощью вытяжных валиков (32, 34) для получения комплексной нити (30) и намотку комплексной нити на паковку (40). A method for producing a polyolefin complex yarn (30), comprising feeding a polyolefin and a nucleating agent to the inlet (13) of an extruder (12) containing a mixing manifold (11), through which the elementary threads (9) are extruded through a die (14) into a cooling bath (16 ); collection of filaments using exhaust rollers (18, 20) to form a bundle of fibers (28); passing the fiber bundle (28) through the pinch rollers (23, 24, 25, 26) to the applicator 22 for applying a finishing agent; passing the fiber bundle (28) through the heat chamber (43) and stretching using exhaust rollers (32, 34) to obtain a multifilament yarn (30) and winding the multifilament yarn on the package (40).

A METHOD OF PRODUCING A YARN AND A FABRIC HAVING THE LOOK AND FEEL OF NATURAL FIBERS

A is composed of a plurality of filament producing fine method

YARN AND A PROCESS FOR ITS MANUFACTURE

MIXTURES OF DISCONTINUOUS FILAMENTS HAVING DIFFERENT CROSS-SECTIONS AND WIRE FORMS FROM THESE MIXTURES

Fil à aspect file de fibres à base de polyamide.

La présente invention concerne un fil à aspect filé de fibres à base de polyamide. Il présente des parties frisées volumineuses et des parties à la fois resserrées et entrelacées, possède un facteur de cohésion compris entre 90 et 140 nùoeuds/mètre, un module de Young compris entre 100 et 150 cN/tex, et une différence d'orientation entre les deux polpulations de brins, évaluée par la mesure du module sonique, comprise entre 25 et 50 cN/tex. Les articles textiles obtenus à partir de ce fil possède à la fois un toucher doux, du volume et de la tenue.

Method of preparation of wire containing of the air

YARNS

Wire with continuous filaments and its manufactoring process

Assembly wound glass filaments - one process of winding and texturising of glass yarns

YARN MANUFACTURING METHOD AND YARN MANUFACTURED BY SAME

The present invention relates to a yarn manufacturing method and yarn manufactured by the same. According to an embodiment of the present invention, the yarn manufacturing method comprises: a step of preparing preparation yarn having a hollow unit; a step of transferring the preparation yarn; and a step of plastic-molding the preparation yarn in a thermal compression state. According to the present invention, the yarn manufacturing method and the yarn manufactured by the same can expand an application range of the yarn. COPYRIGHT KIPO 2018 (S1) Step of preparing preparation yarn (S2) Step of transferring the preparation yarn (S3) Step of plastic-molding the preparation yarn ...

AN IMPROVED COMPOSITE FILTER MEDIA WITH HIGH SURFACE AREA FIBERS

HOLLOW FIBERS CRIMPED FOR FLUID SEPARATION

STRESS MICRO MECHANICAL TEST CELL, DEVICE, SYSTEM AND METHODS

A micro mechanical system for measuring stress and strain in micro- and nano-fibers tubes, and wires as well as for measuring the interface adhesion force and stress in nanofibers and nanotubes embedded in a polymer matrix A sample is attached between freestanding platforms in a MEMS device Relative translational movement between the platforms is created and motion of the platforms is imaged with an optical microscope Mechanical and adhesion properties of the sample are determined by applying a digital image correlation algorithm to the image data.

Process for making multicolor multifilament non commingled yarn

The process includes the sequential steps of supplying in a separated side-by-side parallel relationship to a yarn drawing apparatus first multifilament feed yarn and second multifilament feed yarn which are differently colored or colorable with respect to each other; drawing the first feed yarn and the second feed yarn in the yarn drawing apparatus while keeping the first feed yarn and the second feed yarn in a relatively parallel relationship and separate from each other; making a bundle from the first drawn feed yarn and the second drawn feed yarn by simultaneously imparting false twist to the drawn first feed yarn and the drawn second feed yarn without commingling the first and second drawn feed yarns; and texturing the bundle without commingling to make a nontwisted, noncommingled singles yarn displaying two distinct unblended colors.

Powder-based adsorbents having high adsorption capacities for recovering dissolved metals and methods thereof

A powder-based adsorbent and a related method of manufacture are provided. The powder-based adsorbent includes polymer powder with grafted side chains and an increased surface area per unit weight to increase the adsorption of dissolved metals, for example uranium, from aqueous solutions. A method for forming the powder-based adsorbent includes irradiating polymer powder, grafting with polymerizable reactive monomers, reacting with hydroxylamine, and conditioning with an alkaline solution. Powder-based adsorbents formed according to the present method demonstrated a significantly improved uranium adsorption capacity per unit weight over existing adsorbents.

Glass roving cloth and glass-fiber-reinforced resin sheet

The glass roving cloth includes glass rovings each composed of glass filaments, each having a filament diameter Dt of 9.5 to 30.0 μm, bundled in a number bundled Ft of 400 to 8000 as a warp yarn and glass rovings each composed of glass filaments, each having a filament diameter Dy of 9.5 to 30.0 μm, bundled in a number bundled Fy of 400 to 8000 as weft yarns, wherein the weaving density of the warp yarns and weft yarn is 2.0 to 14.0 yarns/25 mm, the average yarn width of the warp yarn and the weft yarn are each 500 to 8000 μm, the widening rate of the warp yarn and the weft yarn are each 3.0 to 30.0%, the glass occupancy in the warp yarn direction is 90.0 to 106.0%, and the glass occupancy in the weft yarn direction is 75.0 to 99.0%.

ENTANGLED BICOMPONENT YARN AND PROCESS FOR MAKING SAME

The invention provides an entangled continuous filament yarn comprising at least two bicomponent filaments each comprising poly(trimethylene terephthalate) and poly(ethylene terephthalate), wherein the entangled yarn has a node frequency of about 40 to 50 nodes/m, a Crimp Potential of at least about 40%, substantially no twist, and a standard deviation of intervals between nodes of no more than about 1.1 cm. The invention further provides a process for making such an entangled yarn.

TAPELIKE THREADY MATERIAL AND PRODUCTION THEREOF

PURPOSE: To obtain a flexible tapelike thready material having unique appearance without free withdrawing due to fringy ends by fibrillating a woven fabric formed from weft or warp yarns containing fibrillating type conjugate synthetic fibers and cutting the woven fabric in the direction to cut the above-mentioned synthetic fibers. CONSTITUTION: Weft or warp yarns containing fibrillating type conjugate synthetic fibers are woven to prepare a woven fabric, which is then subjected to chemical and/or mechanical treatment and fibrillated. The afore-mentioned woven fabric is subsequently cut in the direction to cut the above-mentioned synthetic fibers to afford a tapelike thready material having fringy cut ends. COPYRIGHT: (C)1990,JPO&Japio ...

Ein- oder mehrfaediges Garn und Verfahren und Vorrichtung zum Herstellen desselben

YARN PRODUCTION METHOD

... 1472931 Simultaneously drawing and false twisting multifilament yarn to produce yarn having fibrils UNITIKA Ltd 26 April 1974 [28 April 1973 30 Aug 1973] 18509/74 Headings D1F and D1W A method of producing a yarn resembling a spun yarn comprising simultaneously falsetwisting and drawing a "feed yarn" at an elevated temperature and at a draw ratio which is less than the "ultimate draw ratio" of the feed yarn wherein, during false-twisting the feed yarn is twisted so as to have (a) not more than 31000/#D' turns per metre and (b) individual filaments flattened along at least part of the length thereof, whereby at least some of the flattened parts of the filaments are broken during the detwisting step of the false twisting. The factor D' is the number obtained by dividing the total denier of the feed yarn by the draw ratio used, the "feed yarn" is defined as a multifilamentary synthetic thermoplastic yarn each of whose filaments has an elongation at break of at least 80%, and the "ultimate ...

LOBATE TEXTILE FILAMENTS AND YARNS THEREFROM

Fibres having a cross-section approximating a polygon

A composite material includes reinforcing fibres embedded in a reinforcing matrix wherein the fibres are high strength, high modulus fibres having a greatest cross-sectional dimension of about 100 mu m or less and a cross-sectional shape which is or approximates to a flat-sided polygon of three or more sides, preferably three sides, the sides of at least some of the fibres adhering to the sides of adjacent fibres. A method of making the fibres is disclosed.

A method of manufacturing knitted fabrics

A knitted fabric, particularly a stocking, is produced from a composite filament in which different components composed of linear thermoplastic synthetic polymers with different shrinkabilities are disposed in side-by-side or in an eccentric sheath-core relationship with one another along the length of the composite filament. The filament is given a twist such that over the length of the filament required for forming a stitch the angle of twist is at least 20 degrees. In one example, polycaproamide and a polymer obtained by polymerizing 15 parts of hexamethylene diammonium terephthalate and 85 parts of e -caprolactam in an atmosphere of nitrogen gas at 260 DEG C were simultaneously spun together through an orifice to form a side-by-side type filament with a conjugation ratio of 1:1 by volume. Having then been drawn to a length 4.4 times its original length it was given a twist of 170 turns per metre which was fixed by heating at 70 DEG C for 10 minutes whereupon the filament was knitted ...

Procedure for the production of voluminösen flexible fiber yarns and from this existing textilen things

Procedure and device for the production of a relatively course-firm thread yarn

CELLULOSESTAPELFASER UND IHRE VERWENDUNG

DEVICE FOR UNTWISTING A LAENGE OF A TEXTILE YARN AND A DEVICE FOR THE APPLICATION OF THIS PROCEDURE.

GESPINST FROM A MIXTURE OF CHEMICAL FIBRES

TEXTILE THREAD AND PROCEDURE FOR ITS PRODUCTION

FIBER COMPOSITE

Cellulosic staple fiber and its use as a filling material

Cellulosic staple fiber and its use as a filling material

Electronically functional yarns

An electronically functional yarn comprises a plurality of carrier fibres (6) forming a core with a series of electronic devices (2) mounted on the core with conductive interconnects (8) extending along the core. A plurality of packing fibres (10) are disposed around the core, the devices and the interconnects, and a retaining sleeve (12) is disposed around the packing fibres. The core, the devices and the interconnects are confined within the plurality of packing fibres retained in the sleeve. In the manufacture of the yarn the electronic devices with interconnects coupled thereto in sequence are mounted on the core; the carrier fibres with the mounted devices and interconnects are fed centrally through a channel with packing fibres around the sides thereof to form a fibre assembly around the core, which is fed into a sleeve forming unit in which a sleeve is formed around the assembly to form the composite yarn.

CELLULOSIC STAPLE FIBER AND ITS USE AS A FILLING MATERIAL

... ²²²The present invention relates to the use of a multilobal cellulosic staple ²fiber as a filling fiber. Furthermore, the ²invention relates to a cellulosic staple fiber which is characterized in that -² the cross-section of the fiber has three or more lobes - the ²titer of the fiber is 1.0 to 30 dtex, preferably more than 3.0 dtex, ²especially more than 5.0 dtex, preferably 5.6 to 10 dtex, especially ²preferred more than 6.0 dtex, especially 6.3 to 10 dtex - the wet modulus of ²the fiber fulfils the following formula: Wet modulus ²(cN/tex) .gtoreq. 0,5*.sqroot.T wherein T is the titer of the fiber in dtex - ²the breaking strength of the fiber in the conditioned state fulfils the ²following formula: Breaking Strength (cN/tex) .gtoreq. 1.3*.sqroot.T + 2*T ²wherein T is the titer of the fiber in dtex.²²²² ...

FALSE TWISTED DIFFERENTIAL TENSION YARN

TITLE False Twisted Differential Tension Yarn A continuous multifilament crimped polyamide or polypropylene yarn suitable for use in loop pile carpeting and the process for making the yarn including feeding the yarn at different tensions and then treating the yarn with saturated steam is disclosed.

ELECTRONICALLY FUNCTIONAL YARNS

An electronically functional yarn comprises a plurality of carrier fibres (6) forming a core with a series of electronic devices (2) mounted on the core with conductive interconnects (8) extending along the core. A plurality of packing fibres (10) are disposed around the core, the devices and the interconnects, and a retaining sleeve (12) is disposed around the packing fibres. The core, the devices and the interconnects are confined within the plurality of packing fibres retained in the sleeve. In the manufacture of the yarn the electronic devices with interconnects coupled thereto in sequence are mounted on the core; the carrier fibres with the mounted devices and interconnects are fed centrally through a channel with packing fibres around the sides thereof to form a fibre assembly around the core, which is fed into a sleeve forming unit in which a sleeve is formed around the assembly to form the composite yarn.

FILLER CORD AND METHOD FOR ITS PRODUCTION

What is described is a filler cord, which comprises a core of (i) paper and (ii) other swellable flat or round filler materials, swellable nonwovens, and/or swellable yarns; optionally a swellable nonwoven as a covering around the core; and, to secure the core, which may or may not have a covering, a swellable yarn, which is wrapped around the core, as well as a method for the production of same. 1. A filler cord comprising a core of (i) paper and (ii) other swellable material selected from the group consisting of swellable flat or round filler materials , swellable nonwovens , swellable yarns , and mixtures thereof; a swellable yarn , which is wrapped around the core , to secure the core.2. A filler cord according to claim 1 , wherein the paper comprises a grammage in the range of 5-70 g/m.3. A filler cord according to claim 1 , which comprises a swellable nonwoven as a covering around the core of (i) paper and (ii) other swellable flat or material.4. A filler cord according to or claim 1 , wherein the ratio of (i) paper to (ii) the other swellable material is in the range of 20:80 to 60:40 claim 1 , based on weight.5. A filler cord according to claim 1 , 20-100% of which consists of materials which swell on contact with water.6. A filler cord according to claim 1 , wherein the filler cord comprises a diameter of 4-140 mm.7. A method for producing a filler cord according to claim 1 , wherein the method comprises the following steps:(1) pulling a mixture of (i) paper in the form of strips and (ii) the other swellable through a die; and then(2) securing the diameter thus obtained by wrapping with the swellable yarn, which is wrapped around the core, to secure the core.8. A method according to claim 7 , wherein claim 7 , before the mixture is pulled through the die claim 7 , a swellable nonwoven is laid around the strand of (i) paper and (ii) the other swellable and then the structure thus obtained is secured with the swellable yarn claim 7 , which is wrapped around ...

FIBER-BASED ADSORBENTS HAVING HIGH ADSORPTION CAPACITIES FOR RECOVERING DISSOLVED METALS AND METHODS THEREOF

A fiber-based adsorbent and a related method of manufacture are provided. The fiber-based adsorbent includes polymer fibers with grafted side chains and an increased surface area per unit weight over known fibers to increase the adsorption of dissolved metals, for example uranium, from aqueous solutions. The polymer fibers include a circular morphology in some embodiments, having a mean diameter of less than 15 microns, optionally less than about 1 micron. In other embodiments, the polymer fibers include a non-circular morphology, optionally defining multiple gear-shaped, winged-shaped or lobe-shaped projections along the length of the polymer fibers. A method for forming the fiber-based adsorbents includes irradiating high surface area polymer fibers, grafting with polymerizable reactive monomers, reacting the grafted fibers with hydroxylamine, and conditioning with an alkaline solution. High surface area fiber-based adsorbents formed according to the present method demonstrated a significantly improved uranium adsorption capacity per unit weight over existing adsorbents. 1. A method comprising:providing a polymer fiber including a substantially circular cross-section and defining a mean diameter of less than 15 microns;exposing the polymer fiber to ionizing radiation to generate a reaction initiating a radical on the polymer fiber;co-grafting polymerizable monomers containing nitrile and hydrophilic groups onto the polymer fiber to form grafted side chains;reacting the nitrile groups in the grafted side chains with a reagent to convert the nitrile groups into compounds adapted to complex metal ions; andconditioning the grafted polymer fiber with an alkaline solution to obtain a fiber-based adsorbent capable of complexing metal ions from an aqueous solution.2. The method according to wherein the polymer fiber cross-section defines a mean diameter less than or equal to about 1 micron.3. The method according to wherein co-grafting polymerizable monomers is performed ...

ENHANCED SUTURE BRAID STRENGTH THROUGH CLICK CHEMISTRY

The present disclosure relates to a method of forming yarns and preparing surgical devices therefrom. The yarns include at least one first filament possessing a polymer core and first reactive members known to have click reactivity on a surface thereof and at least one second filament possessing a polymer core and second reactive members known to have click reactivity on a surface thereof. The first and second reactive members are complementary such that they interact to covalently bond the filaments together. 1. A yarn comprising:at least one first filament possessing a polymer core and a first reactive member known to have click reactivity on a surface of the at least one first filament; andat least one second filament possessing a polymer core and a second reactive member on a surface of the at least one second filament, the second reactive member being known to have complementary click reactivity to the first reactive member of the first filament.2. The yarn according to claim 1 , wherein the polymer core of the first and second filaments are the same polymeric material.3. The yarn according to claim 1 , wherein the polymer core of the first and second filaments are different polymeric materials.4. The yarn according to claim 1 , wherein the first and second reactive members are selected from the group consisting of amine claim 1 , sulfate claim 1 , thiol claim 1 , hydroxyl claim 1 , azide claim 1 , alkyne claim 1 , alkene claim 1 , and combinations thereof.5. The yarn according to claim 1 , wherein the first and second reactive members are selected from the group consisting of carboxyl groups claim 1 , aldehyde groups claim 1 , sulfone groups claim 1 , vinylsulfone groups claim 1 , isocyanate groups claim 1 , acid anhydride groups claim 1 , epoxide groups claim 1 , aziridine groups claim 1 , episulfide groups claim 1 , and combinations thereof.6. A surgical device comprising:first yarns comprising a plurality of filaments possessing a polymer core and reactive ...

CONTINUOUS, HOLLOW POLYMER PRECURSORS AND CARBON FIBERS PRODUCED THEREFROM

The present invention relates to a continuous, multicellular, hollow carbon fiber wherein the fiber structure includes a substantially hollow fiber and multiple internal walls defining multiple integral internal hollow fibers such that the fiber structure comprises a honeycomb-like cross section. 1. A continuous , multicellular , hollow carbon fiber comprising carbon wherein the fiber structure comprises a substantially hollow fiber comprising an outer wall having an outside diameter and multiple internal walls defining multiple integral internal hollow fibers such that the fiber structure comprises a honeycomb-like cross section wherein the outer wall comprises a thickness ranging from about 100 to about 900 nanometers.2. The continuous claim 1 , multicellular claim 1 , hollow carbon fiber according to claim 1 , wherein the outer wall comprises a thickness ranging from about 10 to about 500 nanometers.3. The continuous claim 1 , multicellular claim 1 , hollow carbon fiber according to claim 1 , wherein the internal walls comprise a thickness ranging from about 10 to about 500 nanometers.4. The continuous claim 1 , multicellular claim 1 , hollow carbon fiber according to claim 1 , wherein an outside diameter of the fiber structure comprises from about 1 micron to about 50 microns.5. The continuous claim 4 , multicellular claim 4 , hollow carbon fiber according to claim 4 , wherein the outside diameter of the fiber structure comprises from about 1 micron to about 10 microns.6. The continuous claim 1 , multicellular claim 1 , hollow carbon fiber according to claim 1 , wherein each integral internal hollow fiber comprises an internal diameter ranging from about 10 to about 5000 nanometers.7. A polymer precursor comprising:a first polymer component comprising a melt-spinnable polymer selected from the group consisting of polyacrylonitrile (PAN), pitch, polyphenylene sulfide and combinations thereof anda second polymer component comprising a fugitive polymer which is ...

METHOD OF PREPARING THERMOPLASTICS-CONTINUOUS FIBER HYBRID COMPOSITE

Provided is a method of preparing thermoplastics-continuous fiber hybrid composite, which is easily woven and has excellent uniformity and impregnation at the time of hot melt impregnation after the weaving, including: a) widely and uniformly stretching a bundle of glass fibers; b) heating the stretched glass fibers; c) preparing a thermoplastics-continuous fiber bonding material by binding the heated glass fiber with thermoplastics; d) preparing a multi-layered thermoplastics-continuous fiber bonding material by folding the bonding material in a shape of zigzag; and e) pressing the multi-layered thermoplastics-continuous fiber bonding material. 1. A method of preparing thermoplastics-continuous fiber hybrid composite comprising the following steps of:a) widely and uniformly stretching a bundle of glass fibers;b) heating the stretched glass fibers;c) preparing a thermoplastics-continuous fiber bonding material by binding the heated glass fiber with thermoplastics in a shape of tape;d) preparing a multi-layered thermoplastics-continuous fiber bonding material by folding the bonding material in a shape of zigzag; ande) pressing the multi-layered thermoplastics-continuous fiber bonding material.2. The method of preparing thermoplastics-continuous fiber hybrid composite of claim 1 , wherein the step a) is carried out by uniformly stretching the bundle of glass fibers in a shape of sheet using a guide bar and a convex bar.3. The method of preparing thermoplastics-continuous fiber hybrid composite of claim 1 , wherein the step b) is caned out by heating the stretched glass fibers at 120 to 280° C.4. The method of preparing thermoplastics-continuous fiber hybrid composite of claim 1 , wherein the step c) is carried out by arranging a plurality of the thermoplastics in the shape of tape having a predetermined width in parallel on the same plane without a gap to be stretched claim 1 , and the sum of the widths corresponds to widths of the heated glass fibers.5. The method of ...

Cellulosic staple fiber and its use

The present invention relates to the use of a multilobal cellulosic staple fiber as a filling fiber. Furthermore, the invention relates to a cellulosic staple fiber which is characterized in that the cross-section of the fiber has three or more lobes the titer of the fiber is 1.0 to 30 dtex, preferably more than 3.0 dtex, especially more than 5.0 dtex, preferably 5.6 to 10 dtex, especially preferred more than 6.0 dtex, especially 6.3 to 10 dtex the wet modulus of the fiber fulfils the following formula: Wet modulus (cN/tex)≧0.5*√ T wherein T is the titer of the fiber in dtex the breaking strength of the fiber in the conditioned state fulfils the following formula: Breaking Strength (cN/tex)≧+2* T wherein T is the titer of the fiber in dtex.

MULTIDIRECTIONAL FIBER-REINFORCED TAPE/FILM ARTICLES AND THE METHOD OF MAKING THE SAME

High tenacity, high elongation multi-filament polymeric tapes as well as ballistic resistant fabrics, composites and articles made therefrom. The tapes are fabricated from multi-filament fibers/yarns that are twisted together, bonded together, compressed and flattened. 1. A polymeric tape comprising a flattened multi-filament yarn , said yarn comprising a plurality of continuous polymeric filaments that are twisted together and bonded together; wherein said tape has an ultimate tensile strength of at least 15 g/denier and wherein the value of the ultimate tensile strength (g/denier) of the tape multiplied by the ultimate elongation (%) of the tape (UTS*UE) is at least 150.2. The polymeric tape of wherein the tape comprises polyethylene filaments and has an ultimate tensile strength of at least 20 g/denier.3. The polymeric tape of wherein said tape has an ultimate elongation of at least 5.0%4. The polymeric tape of wherein the tape has an average cross-sectional aspect ratio of at least about 10:1.5. The polymeric tape of wherein said plurality of continuous polymeric filaments are twisted together with at least about 3 twists per inch of yarn length and less than about 11 twists per inch of yarn length.6. The polymeric tape of wherein the tape comprises at least 95% by weight of UHMW polyethylene filaments.7. A non-woven laminate comprising a plurality of tapes of arranged unidirectionally in a side-by-side claim 1 , substantially parallel claim 1 , planar relation to each other and laminated together.8. A non-woven laminate article comprising a plurality of the laminates of claim 7 , wherein said laminates are stacked together and consolidated claim 7 , wherein adjacent laminates are oriented at different angles relative to the central longitudinal axis of the component tapes of each laminate.9. An article fabricated from a plurality of polymeric tapes of claim 1 , wherein said article comprises at least two different polymeric tape types claim 1 , each polymeric ...

In-Fiber Particle Generation

A fiber is provided, including a cladding material that is disposed along a longitudinal-axis fiber length. A plurality of spherical particles are disposed as a sequence along a longitudinal line parallel to the longitudinal fiber axis in at least a portion of the fiber length, and include a spherical particle material that is interior to the fiber cladding material and different than the fiber cladding material. To produce particles, a drawn fiber, having a longitudinal-axis fiber length and including at least one fiber core that has a longitudinal core axis parallel to the longitudinal fiber axis and that is internally disposed to at least one outer fiber cladding layer along the fiber length, is heated for a time that is sufficient to cause a fiber core to break-up into droplets sequentially disposed along the fiber core axis. Fiber cooling solidifies droplets into spherical particles interior to fiber cladding. 1. A fiber comprising:a cladding material disposed along a longitudinal-axis fiber length; anda plurality of spherical particles disposed as a sequence along a longitudinal line parallel to the longitudinal fiber axis in at least a portion of the fiber length, and comprising a spherical particle material that is interior to and different than the fiber cladding material.2. The fiber of wherein the spherical particles are uniformly spaced in sequence along the longitudinal line.3. The fiber of wherein the spherical particles are characterized by a particle diameter claim 1 , and wherein spacing between adjacent spherical particles in the sequence of particles is greater than the particle diameter.4. The fiber of wherein the spherical particles are characterized by a diameter that is less than 1 mm.5. The fiber of wherein the spherical particles are characterized by a diameter that is less than 1 micron.6. The fiber of wherein the spherical particles are characterized by a diameter that is less than 100 nanometers7. The fiber of wherein the fiber cladding ...

METHOD AND APPARATUS FOR MAKING AN IMPROVED HIGH SURFACE AREA FIBER

The present invention is directed to a high surface area fiber and method for making the same. The fiber includes a co-extruded internal fiber and an external sheath that is washed with a solvent to remove the dissolvable external sheath, the resulting fiber having a longitudinal axis and a cross-section, the cross-section having a middle region and projections extending from the middle region. 128-. (canceled)29. A winged fiber comprising:an internal fiber having a cross-section and comprising a middle region, the middle region having between 16 projections and 32 projections extending from the middle region and along a periphery of the middle region;{'sup': 2', '2, 'wherein, the winged fiber has a denier in the range of 1-20 and a specific surface area between 28,000 cm/g and 1,000,000 cm/g.'}30. The winged fiber according to wherein the internal fiber comprises at least one thermoplastic polymer.31. The winged fiber according to wherein the middle region is hollow forming a hub with the projections extending outwardly therefrom.32. The winged fiber according to wherein the projections define channels between the projections claim 29 , and wherein the channels have a channel width of between 200 nanometers and 1000 nanometers.33. The winged fiber according to wherein the winged fiber has a cross-sectional length of between 10 micrometers and 50 micrometers and a cross-sectional width between 5 micrometers and 50 micrometers and a shape factor of at least 10.34. The winged fiber according to wherein the winged fiber further comprises an external sheath claim 29 , wherein the external sheath encompasses the internal fiber claim 29 , and wherein the external sheath is dissolvable.35. A winged fiber comprising:an internal fiber having a cross-section comprising a middle region, the middle region having between 16 projections and 32 projections extending from the middle region and along a periphery of the middle region;{'sup': 2', '2, 'wherein, the winged fiber has a ...

COPPER NANOSTRUCTURES AND METHODS FOR THEIR PREPARATION

Copper nanostructures with relatively small dimensions and method for producing such structures are discloses. The ratios of the various reaction products may be adjusted to produce pentagonal nanowires and other structures such as tadpole shaped nanowires, nanocubes or pentagonal bi-pyramids. 1. A method of producing a copper nanostructure , the method comprising:forming a reaction mixture in a reaction vessel, the reaction mixture comprising a copper-containing compound, a capping agent and a reducing agent; andreducing the copper-containing compound with the reducing agent to cause copper to form a copper nanostructure, wherein (1) the pressure in the reaction vessel is less than about 190 kPa and/or (2) the temperature of the reaction mixture is less than about 115° C.2. The method as set forth in wherein the pressure in the reaction vessel is about atmospheric pressure.3. The method as set forth in wherein the capping agent is an alkylamine.4. The method as set forth in wherein the alkylamine has less than about 25 carbon atoms.5. The method as set forth in wherein the reaction mixture comprises water as a solvent.6. The method as set forth in wherein the temperature of the reaction mixture during formation of the nanostructure is less than about 115° C.7. The method as set forth in wherein the copper-containing compound is selected from the group consisting of copper (II) sulfate claim 1 , copper (II) chloride claim 1 , copper (II) hydroxide and copper (II) nitrate claim 1 , copper (II) acetate and copper (II) trifluoroacetate.8. The method as set forth in wherein the reducing agent is selected from the group consisting of glucose and ascorbic acid.9. The method as set forth in wherein the capping agent is selected from the group consisting of hexadecylamine claim 1 , octadecylamine and oleylamine.10. The method as set forth in wherein the capping agent is hexadecylamine.11. The method as set forth in wherein the concentration of at least one of the reducing ...

HIGH MODULUS POLYOLEFIN FIBERS EXHIBITING UNIQUE MICROSTRUCTURAL FEATURES

A new class of high modulus polypropylene multifilament fiber and/or yarn is provided. Such a multifilament fiber and/or yarn exhibits an exceptional combination of high strength and toughness with low weight and density. The inventive fibers thus permit replacement of expensive polymeric fibers within certain applications with lower cost alternatives, or replacement of high density components with such low density fibers, without sacrificing strength or durability. Such multifilament fibers are produced through melt-spinning processes and exhibit highly unique microstructures therein, including significant void volumes, interspersed and crossed voids, and nanofilament bridges within such voids. Such microstructural characteristics appear to impart the exceptional properties noted above. 1. A polyolefin multifilament fiber exhibiting repeated multiple striations therein , said striations being aligned substantially perpendicularly along the longitudinal axis of said fiber , wherein said striations extend outwardly from the surface of said fiber and wherein at least a portion of said striations extend internally within said fiber toward the longitudinal axis of said fiber , and wherein said internally extending striations define longitudinally extending voids between said striations.2. The polyolefin fiber of claim 1 , wherein said polyolefin is selected from the group consisting of a polypropylene claim 1 , a polyethylene claim 1 , and any blends thereof.3. The polyolefin fiber of claim 2 , wherein said polyolefin is a polypropylene.4. The polyolefin fiber of claim 1 , wherein said fiber exhibits a modulus strength of at least 8 GPa.5. The polyolefin fiber of claim 3 , wherein said fiber exhibits a modulus strength of at least 8 GPa.6. A polyolefin multifilament fiber exhibiting a modulus strength of at least 8 GPa with a fiber diameter of at most 100 microns and further possessing greater than about 80% crystallinity as measured by wide angle X-ray scattering claim ...

ROD ASSEMBLY AND METHOD FOR FORMING ROD ASSEMBLY

Methods for forming fiber reinforced polymer rod assemblies and fiber reinforced polymer rod assemblies are disclosed. In one embodiment, the method includes heating a portion of a first fiber reinforced polymer rod and heating a portion of a second fiber reinforced polymer rod. The method further includes intertwining the portions of the first fiber reinforced polymer rod and the second fiber reinforced polymer rod to form a rod connecting section. The method further includes aligning the first fiber reinforced polymer rod and the second fiber reinforced polymer rod along a linear axis. The method further includes cooling the portions of the first fiber reinforced polymer rod and the second fiber reinforced polymer rod. 1. A method for forming a fiber reinforced polymer rod assembly , the method comprising:heating a portion of a first fiber reinforced polymer rod;heating a portion of a second fiber reinforced polymer rod;intertwining the portions of the first fiber reinforced polymer rod and the second fiber reinforced polymer rod to form a rod connecting section;aligning the first fiber reinforced polymer rod and the second fiber reinforced polymer rod along a linear axis; andcooling the portions of the first fiber reinforced polymer rod and the second fiber reinforced polymer rod.2. The method of claim 1 , further comprising applying a tensile force to the first fiber reinforced rod and the second fiber reinforced rod generally along the linear axis.3. The method of claim 1 , further comprising intertwining a third rod with the portions of the first fiber reinforced polymer rod and the second fiber reinforced polymer rod to form the rod connecting section.4. The method of claim 3 , wherein the third rod is a third fiber reinforced polymer rod.5. The method of claim 3 , wherein the third rod is a fiber string.6. The method of claim 3 , wherein intertwining of the third rod occurs during intertwining of the portions of the first fiber reinforced polymer rod and the ...

EXTRUSION-BASED ADDITIVE MANUFACTURING SYSTEM

In a method of manufacturing an object, a filament is fed to an extrusion head. The filament has a semi-crystalline polymeric reinforcement portion and a polymeric matrix portion. The temperature of the filament is raised in the extrusion head above the melting point of the matrix portion but below the melting point of the reinforcement portion so that the matrix portion of the filament melts within the extrusion head, thereby forming a partially molten filament within the extrusion head. The reinforcement portion of the partially molten filament remains in a semi-crystalline state as it is extruded from the extrusion head. Relative movement is generated between the extrusion head and the substrate as the partially molten filament is extruded onto the substrate in order to form an extruded line on the substrate. The matrix portion of the extruded line solidifies after the extruded line has been formed on the substrate. 1. A method of manufacturing an object , the method comprising:feeding a filament to an extrusion head, the filament comprising a semi-crystalline polymeric reinforcement portion and a polymeric matrix portion which both run continuously along a length of the filament, wherein the reinforcement portion has a higher melting point and a higher crystallinity than the matrix portion;raising the temperature of the filament in the extrusion head above the melting point of the matrix portion but below the melting point of the reinforcement portion so that the matrix portion of the filament melts within the extrusion head, thereby forming a partially molten filament within the extrusion head;extruding the partially molten filament from the extrusion head onto a substrate, the reinforcement portion of the partially molten filament remaining in a semi-crystalline state as it is extruded from the extrusion head; andcausing relative movement between the extrusion head and the substrate as the partially molten filament is extruded onto the substrate in order to ...

STRESS MICRO MECHANICAL TEST CELL, DEVICE, SYSTEM AND METHODS

The present disclosure provides a stress micro mechanical system for measuring stress and strain in micro- and nano-fibers, tubes, and wires as well as for measuring the interface adhesion force and stress in nanofibers and nanotubes embedded in a polymer matrix. Also described are nanofibers comprising a cascade of surface ripples or periodic necks. Such surface features may be formed during cold drawing of electrospun nanofibers. 19-. (canceled)10. A nanostructure comprising:a nanofiber comprising a cascade of surface ripples.11. The nanostructure of claim 10 , wherein the surface ripples comprise a periodicity.12. The nanostructure of claim 11 , wherein an average spacing between the surface ripples is 50 nm.13. The nanostructure of claim 10 , wherein the surface ripples comprise a depth of 20-40 nm.14. The nanostructure of claim 10 , wherein the cascade of surface ripples extends along a length of the nanofiber.15. The nanostructure of claim 10 , wherein the nanofiber comprises an outer surface over a fiber core claim 10 , the outer surface comprising the surface ripples.16. The nanostructure of claim 15 , wherein the outer surface is more brittle than the fiber core.17. The nanostructure of claim 10 , wherein the nanofiber comprises a polymer.18. The nanostructure of claim 17 , wherein the polymer comprises polyacrylonitrile.19. The nanostructure of claim 10 , wherein the nanofiber has a diameter of from 300 nm to 600 nm.20. The nanostructure of claim 10 , wherein the nanofiber has a length of 10-100 microns.21. The nanostructure of claim 10 , wherein the nanofiber comprises an ultimate strain at fiber failure of 60-130%.22. The nanostructure of claim 10 , wherein the nanofiber comprises a strength in the range of 30-130 MPa.23. The nanostructure of claim 10 , wherein the nanofiber comprises an elastic modulus of from 6.1 GPa to 9.3 GPa.24. The nanostructure of claim 10 , wherein the nanofiber is fabricated by electrospinning.25. The nanostructure of claim 10 , ...

Method of manufacturing a composite article using fibers having optimized shapes for improved optical performance

A method of manufacturing a composite article may include providing a plurality of fibers. At least a portion of the plurality of fibers may be substantially optically transparent. The method may further include forming the fibers with at least one base surface and a pair of side surfaces oriented in non-perpendicular relation to the base surface. The method may additionally include positioning the fibers in a layer in side-by-side relation to one another such that the side surfaces overlap one another when viewed along a direction normal to a plane of the layer. The method may also include embedding the fibers at least partially in a substantially optically transparent polymeric matrix.

FILAMENT FOR EXTRUSION-BASED ADDITIVE MANUFACTURING SYSTEM

A filament is fed to an extrusion head. The filament has a semi-crystalline polymeric reinforcement portion and a polymeric matrix portion. The reinforcement and matrix portions run continuously along a length of the filament. The reinforcement portion has a higher melting point and a higher crystallinity than the matrix portion. The temperature of the filament is raised in the extrusion head above the melting point of the matrix portion but below the melting point of the reinforcement portion so that the matrix portion of the filament melts within the extrusion head, thereby forming a partially molten filament within the extrusion head. The partially molten filament is extruded from the extrusion head onto a substrate, the reinforcement portion of the partially molten filament remaining in a semi-crystalline state as it is extruded from the extrusion head. Relative movement is generated between the extrusion head and the substrate as the partially molten filament is extruded onto the substrate in order to form an extruded line on the substrate. The matrix portion of the extruded line solidifies after the extruded line has been formed on the substrate. 1. A filament for use in an extrusion-based additive manufacturing method , the filament comprising:a semi-crystalline polymeric reinforcement portion which runs continuously along a length of the filament; anda solid polymeric matrix portion which runs continuously along a length of the filament,wherein the reinforcement portion has a higher melting point and a higher crystallinity than the matrix portion.2. The filament of wherein the reinforcement portion and the matrix portion are intertwined with each other so that they both follow tortuous paths along the length of the filament.3. The filament of wherein the reinforcement portion and the matrix portion are twisted together so that they both follow helical paths along the length of the filament.4. The filament of wherein the reinforcement portion comprises a ...

BIO-BASED DEGRADABLE KNITTED FABRIC WITH ANTIBACTERIAL EFFECT

A biodegradable antibacterial knitted fabric, a cross section of the knitted fabric includes a front side of cross section made of wool short fiber yarns, an intermediate connection layer of cross section capable of transferring moisture and a rear side of cross section made of antibacterial filaments; the intermediate connection layer of cross section is made of filament yarns having a special shape capable of being inserted into the front side of cross section and the rear side of cross section so that the front side of cross section is connected with the rear side of cross section. The biodegradable antibacterial knitted fabric proposed by the present application has a long time significant antibacterial effect by adopting a cross section structure with three layers and antibacterial material, and does not contain any antimicrobials and metal ions, and has the advantages of low cost, easy manufacturing and long lasting antibacterial effect. 1100101102103102101103101103. A biodegradable antibacterial knitted fabric , wherein , a cross section () includes a front side of cross section () made of wool short fiber yarns , an intermediate connection layer of cross section () capable of transferring moisture and a rear side of cross section () made of antibacterial filaments; the intermediate connection layer of cross section () is made of filament yarns having a special shape capable of being inserted into the front side of cross section () and the rear side of cross section () so that the front side of cross section () is connected with the rear side of cross section () forming a double-sided fabric with different yarn and effect on each side.2200. The biodegradable antibacterial knitted fabric according to claim 1 , wherein claim 1 , the biodegradable antibacterial knitted fabric adopts a compound knitting structure with six rows ().3201204200101202205103203206102. The biodegradable antibacterial knitted fabric according to claim 2 , wherein claim 2 , a first row () ...

PRODUCTION OF MICRO- AND NANO-FIBERS BY CONTINUOUS MICROLAYER COEXTRUSION

A multilayered polymer composite film includes a first polymer material forming a polymer matrix and a second polymer material coextruded with the first polymer material. The second polymer material forms a plurality of fibers embedded within the polymer matrix. The fibers have a rectangular cross-section. 124-. (canceled)25. A method for producing a polymer construct comprising:coextruding a first polymer material with a second polymer material to form a coextruded polymer film having discrete overlapping layers of polymeric material that each extend the entire length of the coextruded polymer film;multiplying the overlapping layers by dividing the coextruded polymer film into portions and stacking the portions to form a multilayered composite film;separating the first polymer material from the second polymer material to form a plurality of first polymer material fibers having a rectangular cross-section; andadhering the first polymer material fibers together to form the polymer construct.26. The method of claim 25 , wherein separating the first polymer material from the second polymer material comprises immersing the multilayered composite film in a solvent to dissolve the second polymer material.27. The method of claim 26 , wherein the solvent comprises water claim 26 , the first polymer material being water insoluble and the second polymer material being water soluble.28. The method of claim 25 , wherein the first polymer material comprises polycaprolactone and the second polymer material comprises polyethylene oxide.29. The method of claim 25 , wherein separating the first polymer material from the second polymer material comprises applying pressurized water to the multilayered composite film.30. The method of claim 25 , further comprising depositing a static electric charge on the first polymer material fibers.31. The method of claim 25 , wherein the first polymer material comprises polystyrene and the second polymer material comprises polyamide 6.32. The ...

YARN

A yarn having characteristics required in a gland packing is obtained by, when the yarn is to be constructed by fibers such as organic fibers, finding relationships between the required characteristics and the value of the limiting oxygen index (LOI), and adequately defining the level of the required characteristics. A yarn is formed by twisting fibers having a limiting oxygen index of 21 to 30, preferably 22 to 26. The fibers contain fibers in which a flat ratio is defined as 1.1 to 2, the flat ratio being a value obtained by dividing the maximum value of an interval between two parallel straight lines in a state where a section of each of the fibers is interposed between the straight lines, by the minimum value. The fibers contain fibers in each of which a sectional shape has one or more recesses having a depth of 0.4 μm or more. 1. A yarn wherein the yarn is formed by twisting fibers having a limiting oxygen index of 21 to 30.2. The yarn according to claim 1 , wherein the limiting oxygen index is 22 to 26.3. The yarn according to claim 1 , wherein the fibers contain fibers in which a flat ratio is defined as 1.1 to 2 claim 1 , the flat ratio being a value which is obtained by dividing a maximum value of an interval between two parallel straight lines in a state where a section of each of the fibers is interposed between the straight lines claim 1 , by a minimum value.4. The yarn according to claim 3 , wherein the flat ratio is defined as 1.4 to 1.6.5. The yarn according to claim 1 , wherein the fibers contain fibers in each of which a sectional shape has one or more recesses.6. The yarn according to claim 5 , wherein a depth of the recess is 0.4 μm or more.7. The yarn according to claim 1 , wherein the fibers contain modacrylic fibers.8. The yarn according to claim 7 , wherein the modacrylic fibers are acrylonitrile-vinyl acetate copolymer fibers.9. The yarn according to claim 2 , wherein the fibers contain fibers in which a flat ratio is defined as 1.1 to 2 ...

CARBON-CONTAINING ARAMID BICOMPONENT FILAMENT YARNS

A yarn comprising a plurality of bicomponent filaments having a first region comprising a first polymer composition and a second region comprising a second polymer composition; the regions being distinct and present in the bicomponent filaments in a sheath-core structure or a side-by-side structure; wherein the first polymer composition comprises aramid polymer containing 0.5 to 20 weight percent homogeneously dispersed discrete carbon particles and the second polymer composition comprises aramid polymer being free of discrete carbon particles and having at least one homogeneously dispersed masking pigment, the yarn having a total content of 0.5 to 5 weight percent discrete carbon particles. 1. A yarn comprising a plurality of bicomponent filaments ,the bicomponent filaments having a first region comprising a first polymer composition and a second region comprising a second polymer composition; each of the first and second regions being distinct and present in the bicomponent filaments in a sheath-core structure or a side-by-side structure;wherein the first polymer composition comprises aramid polymer containing 0.5 to 20 weight percent discrete carbon particles, based on the amount of carbon particles in the first composition, homogeneously dispersed in the first region in the filament; andwherein the second polymer composition comprises aramid polymer being free of discrete carbon particles and having at least one masking pigment homogeneously dispersed in the second region of the filament;the yarn having a total content of 0.5 to 5 weight percent discrete carbon particles.2. The yarn of wherein the bicomponent filaments comprise 5 to 50 weight percent of the first polymer composition and 50 to 95 weight percent of the second polymer composition.3. The yarn of wherein the first polymer composition comprises aramid polymer containing 0.5 to 10 weight percent discrete carbon particles.4. The yarn of wherein the at least one masking pigment is present in the second ...

PRODUCTION OF MICRO- AND NANO-FIBERS BY CONTINUOUS MICROLAYER COEXTRUSION

A multilayered polymer composite film includes a first polymer material forming a polymer matrix and a second polymer material coextruded with the first polymer material. The second polymer material forms a plurality of fibers embedded within the polymer matrix. The fibers have a rectangular cross-section. 1. A multilayered polymer composite film comprising:a first polymer material forming a polymer matrix; anda second polymer material coextruded with the first polymer material and forming a plurality of fibers embedded within the polymer matrix, the fibers having a rectangular cross-section and extending the entire length of the multilayered polymer composite film.2. The multilayered polymer composite film of claim 1 , wherein the first polymer material comprises polycaprolactone and the second polymer material comprises polyethylene oxide.3. A multilayered polymer composite film comprising:a first polymer material forming a polymer matrix;a second polymer material coextruded with the first polymer material and forming a plurality of fibers embedded within the polymer matrix, the fibers having a rectangular cross-section and a Young's Modulus from about 300 MPa to about 3.2 GPa.4. A multilayered polymer composite film comprising:a first polymer material forming a polymer matrix;a second polymer material coextruded with the first polymer material and forming a plurality of fibers embedded within the polymer matrix, the fibers having a rectangular cross-section; anda third polymer material coextruded with the first polymer material and the second polymer material and forming a second plurality of fibers embedded within the polymer matrix and having a rectangular cross-section.5. The multilayered polymer composite film of claim 4 , wherein the first polymer material comprises polystyrene claim 4 , the second polymer material comprises polyamide 6 claim 4 , and the third polymer material comprises poly(ethylene terephthalate).6. The multilayered polymer composite film ...

Hollow Fiber Structure of Aerogel and Method for Manufacturing the Hollow Fiber Structure

A fiber structure includes a fiber thread including a plurality of monofilaments juxtaposed to and combined with each other. Each of the monofilaments has a hollow shape. Each of the monofilaments is made of an aerogel and an artificial polymer. The aerogel and the artificial polymer are mixed together. 1. A fiber structure comprising:a fiber thread including a plurality of monofilaments juxtaposed to and combined with each other;wherein:each of the monofilaments has a hollow shape;each of the monofilaments is made of an aerogel and an artificial polymer; andthe aerogel and the artificial polymer are mixed together.2. The fiber structure of claim 1 , wherein the aerogel of each of the monofilaments has a mass proportion of 0.5-10%.3. The fiber structure of claim 1 , wherein the artificial polymer of each of the monofilaments is made of PP claim 1 , polyester claim 1 , Nylon or acrylic.4. The fiber structure of claim 1 , wherein the fiber thread has a specification of 70D/72F.5. A method for manufacturing a fiber structure claim 1 , comprising:preparing a staple including an aerogel and an artificial polymer,hot melting the staple into a spinning solution and spinning the spinning solution by a plurality of annular injection holes to form a plurality of hollow monofilaments, andjuxtaposing and combining the monofilaments into a fiber thread.6. The method of claim 5 , wherein the step of preparing a staple includes obtaining powder of the aerogel and particles of the artificial polymer claim 5 , and evenly mixing the powder of the aerogel and the particles of the artificial polymer to form the staple.7. The method of claim 5 , wherein the step of preparing a staple includes adding powder of the aerogel and mixing the powder of the aerogel with the artificial polymer during polymerization of the artificial polymer to form the staple.8. The method of claim 5 , further comprising:working the fiber thread after the step of juxtaposing and combining the monofilaments. The ...

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

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.

TWISTED CORD OF LIQUID-CRYSTAL POLYESTER MULTIFILAMENTS, PRODUCTION METHOD THEREFOR, AND PRODUCT COMPRISING SAID TWISTED CORD

The present invention addresses the problem of providing a twisted cord of liquid-crystal polyester multifilaments which gives various high-order processed products capable of retaining desired product shapes and which is suitable for use in general industrial material applications such as high-strength ropes, slings, and nets. The twisted cord of liquid-crystal polyester multifilaments has a coefficient of variation in longitudinal-direction cord diameter, X, of less than 30%. 1. A twisted cord of liquid-crystal polyester multifilaments , the twisted cord having a coefficient of variation in cord diameters in a longitudinal direction , X , of less than 30% , the coefficient of variation in cord diameters that is calculated from (Formula 1) described below:{'br': None, 'Coefficient of variation in cord diameters, X (%)={standard deviation of cord diameters in a longitudinal direction, σ (mm)÷average cord diameter, D (mm)}×100\u2003\u2003(Formula 1)'}2. The twisted cord of liquid-crystal polyester multifilaments according to claim 1 , the twisted cord having a strength of 12 cN/dtex or more.4. The twisted cord of liquid-crystal polyester multifilaments according to claim 3 , wherein a proportion of the structural unit (I) is 40 to 85 mol % based on a total of the structural units (I) claim 3 , (II) claim 3 , and (III) claim 3 , and a proportion of the structural unit (II) is 60 to 90 mol % based on a total of the structural units (II) and (III) claim 3 , and a proportion of the structural unit (IV) is 40 to 95 mol % based on a total of the structural units (IV) and (V).5. A method for producing the twisted cord of liquid-crystal polyester multifilaments according to claim 1 , the method comprising twisting a liquid-crystal polyester multifilament having a yarn flexibility index S of 8.0 or less.6. The method according to claim 5 , wherein a liquid-crystal polyester is melt-spun and then wound into a package claim 5 , the package is subjected to solid-phase ...

Glass roving cloth and glass-fiber-reinforced resin sheet

The glass roving cloth includes glass rovings each composed of glass filaments, each having a filament diameter Dt of 9.5 to 30.0 μm, bundled in a number bundled Ft of 400 to 8000 as a warp yarn and glass rovings each composed of glass filaments, each having a filament diameter Dy of 9.5 to 30.0 μm, bundled in a number bundled Fy of 400 to 8000 as weft yarns, wherein the weaving density of the warp yarns and weft yarn is 2.0 to 14.0 yarns/25 mm, the average yarn width of the warp yarn and the weft yarn are each 500 to 8000 μm, the widening rate of the warp yarn and the weft yarn are each 3.0 to 30.0%, the glass occupancy in the warp yarn direction is 90.0 to 106.0%, and the glass occupancy in the weft yarn direction is 75.0 to 99.0%.

SLIVERS CONTAINING CELLULOSE ACETATE FOR SPUN YARNS

Sliver containing cellulose acetate staple fibres is obtained that exhibits good fibre to fibre cohesion energy and can be successfully drawn and made into spun yarns. Such slivers can be made of cellulose acetate staple fibres that have of round shape, a denier of less than 3.0, a crimp frequency per inch (CPI) from 5 to 30, a good fibre to fibre coefficient of friction and have a low static charge. The textile fabrics made from spun yarns have plant-based renewable resources by containing the cellulose acetate staple fibres, and can exhibit a thermoplastic behaviour to impart better dimensional stability to a textile fabric. The low denier of the cellulose acetate fibres can impart a feel similar to that of cotton, yet can be successfully processed through carding machines to form cohesive slivers and retain their integrity throughout the drawing process, allowing them to be formed into spun yarns. 1. A carded sliver comprising cellulose acetate staple fibers (CA staple fibers) having a round shape , a denier of less than 3.0 , a crimp frequency per inch (CPI) from 5 to 30 , and wherein said sliver either:a. has a fiber-to-fiber cohesion energy of at least 10,000 Joules, orb. is obtained from CA staple fibers having a scroop value of at least 0.2 and not more than 1.2. The carded sliver of claim 1 , wherein said CA staple fibers have an uncrimped fiber to fiber coefficient of dynamic friction (F/F CODF) between 0.11 to less than 0.2 as measured according to ASTM D3412/3412M-13 claim 1 , at one twist claim 1 , a rate of 20 m/min claim 1 , and with an input tension of 10 grams on filaments used to make said CA staple fibers.3. The carded sliver of claim 1 , wherein said CA staple fibers have a static electricity charge of less than 1.0 kV at 65% relative humidity as measured using an electrostatic fieldmeter on a two foot sample length of filaments used to make said CA staple fibers rubbed with three times back and forth.4. The carded sliver of claim 1 , wherein the ...

SILOXANE BASED HOLLOW FIBERS

The present invention provides inventive hollow fibers having defined gas permability characteristics. Hollow fibers of the present invention are characterized by a PMPgreater than 30,000 Barrer*MPa. Curable compositions and silicone elastomers produced by curing the curable compositions are provided by the present invention. Compositions and methods for making the hollow fibers and devices incorporating them are provided by the present invention. 3. The curable composition of claim 1 , wherein for siloxane polymer (a): each R1 claim 1 , R2 claim 1 , R2′ claim 1 , R3 claim 1 , R4 claim 1 , R5 and R6 is independently selected from the group consisting of: CH claim 1 , CHCH claim 1 , CHCHCH claim 1 , CHCHCHCH claim 1 , CHCHF claim 1 , phenyl claim 1 , CH═CH claim 1 , OH claim 1 , OCH claim 1 , epoxy claim 1 , carbinol claim 1 , methacrylate and acrylate claim 1 , x is an integer in the range of 2-2500 claim 1 , inclusive claim 1 , y is absent or is an integer in the range of 1-1000 claim 1 , inclusive claim 1 , and z is absent.4. The curable composition of claim 2 , wherein for siloxane polymer (d): each R1 claim 2 , R2 claim 2 , R2′ claim 2 , R3 claim 2 , R4 claim 2 , R5 and R6 is independently selected from the group consisting of: CH claim 2 , CHCH claim 2 , CHCHCH claim 2 , CHCHCHCH claim 2 , CHCHF claim 2 , phenyl claim 2 , CH═CH claim 2 , OH claim 2 , epoxy claim 2 , carbinol claim 2 , methacrylate claim 2 , acrylate claim 2 , and H claim 2 , x is an integer in the range of 3-100 claim 2 , inclusive claim 2 , and y is absent or is an integer in the range of 1-1000 claim 2 , inclusive.5. The curable composition according to claim 1 , wherein for siloxane polymer (a): each R1 claim 1 , R2 claim 1 , R2′ claim 1 , R3 claim 1 , R4 claim 1 , R5 and R6 is independently selected from the group consisting of: CH claim 1 , OCH claim 1 , CHCH claim 1 , CH═CHand OH; x is an integer in the range of 100-2200 claim 1 , inclusive; y is absent or is an integer in the range of 1- ...

YARN MANUFACTURING APPARATUS

A yarn producing apparatus includes front rollers movable while carbon nanotube (CNT) fibers are running and aggregates the CNT fibers. Each of the front rollers includes a groove provided on an outer circumference thereof to aggregate the CNT fibers. 1. A yarn producing apparatus for producing carbon nanotube yarn from carbon nanotube fibers while causing the carbon nanotube fibers to run , the yarn producing apparatus comprising:an aggregating unit that is movable with the carbon nanotube fibers running and aggregates the carbon nanotube fibers; whereinthe aggregating unit includes a groove provided at a portion thereof to aggregate the carbon nanotube fibers.2. The yarn producing apparatus according to claim 1 , whereinthe aggregating unit includes a pair of rollers that rotate about axes in a direction perpendicular or substantially perpendicular to a direction of the carbon nanotube fibers running and opposed to each other at a position at which the carbon nanotube fibers are sandwiched; andthe groove is provided on an outer circumference of at least one of the pair of rollers and extends in a circumferential direction of the roller.3. The yarn producing apparatus according to claim 2 , whereinthe groove is provided in each of the pair of rollers and has an arc-shaped cross section.4. The yarn producing apparatus according to claim 3 , wherein the groove has an approximately semi-circular cross section.5. The yarn producing apparatus according to claim 4 , further comprising a support including a supporting surface that supports a carbon nanotube assembly from which the carbon nanotube fibers are drawn; whereinthe pair of rollers rotate about axes in a direction perpendicular or substantially perpendicular to the direction of the carbon nanotube fibers running and perpendicular or substantially perpendicular to the supporting surface of the support.6. The yarn producing apparatus according to claim 5 , further comprising a second aggregating unit on a ...

POLYTETRAFLUOROETHYLENE TEXTILE AND MANUFACTURING METHOD THEREOF

A polytetrafluoroethylene textile and manufacturing method thereof is disclosed. The method of manufacturing the polytetrafluoroethylene textile comprises: providing a polytetrafluoroethylene yarn and an artificial fiber yarn; and performing a knitting process to knit the polytetrafluoroethylene yarn and the artificial fiber yarn together to thereby obtain the polytetrafluoroethylene textile. The polytetrafluoroethylene textile comprises: an artificial fiber structural layer comprising a plurality of artificial fiber yarns; and a polytetrafluoroethylene structural layer comprising a plurality of polytetrafluoroethylene yarns, and a part of the polytetrafluoroethylene yarns of the polytetrafluoroethylene structural layer and a part of the artificial fiber yarns of the artificial fiber structural layer are knitted together. 1. A method of manufacturing a polytetrafluoroethylene textile , comprising:providing a polytetrafluoroethylene yarn and an artificial fiber yarn; andperforming a knitting process to knit the polytetrafluoroethylene yarn and the artificial fiber yarn together to thereby obtain the polytetrafluoroethylene textile,wherein a pretreatment process is further performed before performing the knitting process to make the polytetrafluoroethylene yarn have at least one knit-assisting part for assisting knitting the polytetrafluoroethylene yarn and the artificial fiber yarn together and confining the artificial fiber yarn correspondingly to thereby obtain the polytetrafluoroethylene textile, wherein the knit-assisting part is an expanded structure formed by at least two of the polytetrafluoroethylene yarns, and a part of the artificial fiber yarn is configured to pass through the knit-assisting part to thereby knit with the at least two of the polytetrafluoroethylene yarns.2. The method of claim 1 , further comprising performing a laminating process to laminate a water repellent fabric with the polytetrafluoroethylene textile together.3. The method of claim 1 ...

PILE FABRIC AND METHOD FOR MANUFACTURING SAME

A pile fabric includes ground yarns constituting a ground structure; pile fibers that are tangled with the ground yarns, the pile fibers including portions standing on a front surface side of the ground structure; and an organically-modified silicone-based softener adhered to the pile fibers located on a back surface side of the pile fabric. The pile fibers include at least one selected from the group consisting of acrylic fibers and modacrylic fibers, and have a softening point lower than a softening point of the ground yarns. The portions standing on the front surface side of the ground structure are not fused to each other, and on a back surface side of the ground structure, at least part of the pile fibers located outside of the ground yarns are fused to each other. 1. A pile fabric , comprising:ground yarns constituting a ground structure;pile fibers that are tangled with the ground yarns, the pile fibers comprising portions standing on a front surface side of the ground structure; andan organically-modified silicone-based softener adhered to the pile fibers located on a back surface side of the pile fabric,wherein the pile fibers comprise at least one selected from the group consisting of acrylic fibers and modacrylic fibers, and have a softening point lower than a softening point of the ground yarns,wherein the portions standing on the front surface side of the ground structure are not fused to each other, and on a back surface side of the ground structure, at least part of the pile fibers located outside of the ground yarns are fused to each other,wherein an amount of the organically-modified silicone-based softener is 0.4 parts by weight or more with respect to 100 parts by weight of the pile fibers located on the back surface side of the pile fabric, andwherein the organically-modified silicone-based softener is at least one selected from the group consisting of amino-modified silicone-based softeners, epoxy-modified silicone-based softeners, and carboxyl- ...

SYSTEMS AND METHODS FOR MANUFACTURING FIBER-REINFORCED POLYMERIC COMPONENTS

Components may be manufactured by co-extruding a polymer filament and a fiber filament from a nozzle. The polymer filament and the fiber filament may be heated within the nozzle, which may couple the polymer filament to the fiber filament. The co-extruded filament may result in long reinforcing fibers which provide strength to the components. 1. A system comprising:a polymer filament feed reel;a fiber filament feed reel;a nozzle comprising a heating element; anda feeder wheel configured to drive a polymer filament from the polymer filament feed reel and a fiber filament from the fiber filament feed reel into the nozzle.2. The system of claim 1 , further comprising a cutter configured to cut a co-extruded filament exiting the nozzle.3. The system of claim 1 , wherein the heating element is configured to at least partially melt the polymer filament to facilitate coupling of the fiber filament to the polymer filament.4. The system of claim 1 , wherein the polymer filament and the fiber filament are configured to be co-extruded from the nozzle. This application is a divisional of, and claims priority to, and the benefit of U.S. Non-Provisional application Ser. No. 14/559,012, entitled “METHODS FOR MANUFACTURING FIBER-REINFORCED POLYMERIC COMPONENTS,” filed on Dec. 3, 2014. The '012 application claims priority to, and the benefit of U.S. Provisional Application No. 61/915,277, entitled “SYSTEMS AND METHODS FOR MANUFACTURING FIBER-REINFORCED POLYMERIC COMPONENTS,” filed on Dec. 12, 2013, both are hereby incorporated by reference in their entirety.The present disclosure relates generally to the manufacture of polymeric components. More particularly, the present disclosure relates to the manufacture of fiber-reinforced polymeric components.Fused filament fabrication is a three-dimensional printing process commonly used for modeling, prototyping, and production applications. A plastic filament may be unwound from a coil and supply material to produce a component. The plastic ...

Modified deformed reinforcement fibers, methods of making, and uses

The invention relates to modified reinforcement fibers for use in a variety of applications. The modification includes crimping linear or straight reinforcement fibers to create a deformed or different shaped reinforcement fiber. Examples of the shaped fibers resulting from crimping include w-shaped, s-shaped, z-shaped and wedge-shaped.

HYBRID YARNS FORMED WITH FIBERS HAVING ROUNDED TIPS AND METHOD OF MAKING THE SAME

A hybrid yarn and a fabric including the hybrid yarn are provided. The hybrid yarn is formed of a plurality of fibers of a plurality of different fiber compositions. The fibers of different configurations are homogenized and intimate with one another throughout the yarn. The yarn may be formed using fibers made of the same material or a plurality of different materials. The different fiber compositions may include fibers of three or more different cross sections, fibers made of different materials or a combination of the two. Fibers having tips or ends are made so that the tips are rounded rather than squared to improve the manufacture and quality of the yarn. The materials may be synthetic and/or natural materials. Fabrics made with the hybrid yarn will have selectable functional features and also be of lighter weight than previously possible. Hybrid spinnerets may be used to produce hybrid yarns with three or more different fiber cross sections wherein spinneret portals that have tips are made with the tips rounded. 1. A hybrid yarn comprising a plurality of fibers , wherein the plurality of fibers includes fibers of at least three different fiber shapes , wherein three of the different fiber shapes are:one that has a cross section that is at least partially voided,one that is Y-shaped, andone that is W-shaped,wherein the Y-shaped fibers include three tips and the W-shaped fibers include five tips, wherein each of the tips of the Y-shaped fibers and the W-shaped fibers is rounded.2. (canceled)3. The hybrid yarn of wherein the fibers are textured after extrusion so that they are homogenized and intimate with one another throughout the yarn.4. The hybrid yarn of wherein the fibers of the yarn are made of the same material.5. The hybrid yarn of wherein the fiber with a cross section that is at least partially voided comprises between about 15% and about 85% of the total number of fibers of the hybrid yarn.6. The hybrid yarn of wherein the number of fibers of each of ...

MELT-SPINNING PROCESS AND MELT-SPINNING APPARATUS FOR PRODUCING A CRIMPED YARN

A melt-spinning process and a melt-spinning apparatus produce a crimped yarn. By means of a spinning device, a filament bundle is generated from a thermoplastic polymer, is drawn after cooling and is compressed into a yarn plug in a stuffing chamber. The yarn plug is opened up into a crimped yarn and wound into a bobbin. In order to obtain as high a crimp resistance of the yarn as possible, amorphous fractions in the molecular structure of the yarn material are avoided after drawing. This is achieved by means of relaxation treatment after drawing and before compression, a minimum yarn pull force of >0.05 cN/dtex with a relaxation temperature in the range of 120° C. to 245° C. being maintained. 1. A melt-spinning process for producing a crimped yarn , in which at least one filament bundle is generated from a thermoplastic polymer by the spinning of a plurality of filaments , in which the filament bundle is drawn after cooling and is compressed into a yarn plug in a stuffing chamber , and in which the yarn plug is opened up into a crimped yarn and wound into a bobbin , wherein , after drawing and before compression , the filament bundle undergoes relaxation treatment at a relaxation temperature in the range of 120° C. to 245° C. and with a minimum yarn pull force of >0.05 cN/dtex.2. The process as claimed in claim 1 , wherein claim 1 , during relaxation treatment claim 1 , the yarn pull force acting on the filament bundle lies in the range of 0.1 cN/dtex to 2.0 cN/dtex claim 1 , preferably in the range of 0.2 cN/dtex to 0.7 cN/dtex.3. The process as claimed in claim 1 , wherein claim 1 , for relaxation treatment claim 1 , the filament bundle is guided in a plurality of loopings on a godet pair with heated godets and with conical godet casings.4. The process as claimed in claim 1 , wherein claim 1 , after relaxation treatment claim 1 , the filament bundle undergoes fixing treatment at a fixing temperature in the range of 60° C. to 240° C. claim 1 , with a minimum yarn ...

Hybrid yarns, method of making hybrid yarns and fabrics made of hybrid yarns

A hybrid yarn and a fabric including the hybrid yarn are provided. The hybrid yarn is formed of a plurality of fibers of a plurality of different fiber compositions. The different fiber compositions are interspersed throughout the yarn. The yarn may be formed using fibers made of the same material or a plurality of different materials. The different fiber compositions may include fibers of three or more different cross sections, fibers made of different materials or a combination of the two. The materials may be synthetic and/or natural materials. The yarn may be constructed to impart selectable functional characteristics to a fabric without the need to include chemicals to impart those characteristics. Fabrics made with the hybrid yarn will have selectable functional features and also be of lighter weight than previously possible. Hybrid spinnerets may be used to produce hybrid yarns with three or more different fiber cross sections.

METHOD FOR THE MANUFACTURE OF FIBROUS YARN

Disclosed is a method for the manufacture of fibrous yarn including the steps, where an aqueous suspension including fibers and at least one rheology modifier is provided, followed by directing the suspension through at least one nozzle, to form at least one yarn, and then dewatering the yarn. 1. A method for the manufacture of fibrous yarn , wherein said method comprises the steps , where an aqueous suspension comprising fibers and at least one rheology modifier is provided , followed by directing said suspension through at least one nozzle , to form at least one yarn , and then subjecting said yarn to dewatering.2. The method according to claim 1 , wherein said method comprises the steps claim 1 , where the nozzle has an inner diameter of the outlet smaller than or equal to the maximum length weighed fiber length of the fibers.3. The method according to claim 1 , wherein said fibers originate from at least one plant based raw material source.4. The method according to claim 1 , wherein said plant based raw material source is a virgin source or recycled source or any combination thereof.5. The method according to claim 1 , wherein the suspension comprises virgin or recycled fibers originating from synthetic materials claim 1 , or from natural materials claim 1 , or combinations thereof.6. The method according to claim 1 , wherein the rheology modifier is selected from alginic acid claim 1 , alginates claim 1 , pectin claim 1 , carrageenan claim 1 , and nanofibrillar cellulose and combinations thereof.7. The method according to claim 1 , wherein the amount of the rheology modifier is from 0.1 to 20 weight %.8. The method according to claim 1 , wherein the suspension comprises at least one dispersion agent claim 1 , preferably an anionic long chain polymer or NFC or a combination thereof.9. The method according to claim 1 , wherein the suspension comprises additives selected from surfactants claim 1 , hydrophobicity agents claim 1 , hydrophilicity agents claim 1 , ...

Fabric Containing an Intimate Blend of Antistatic Fibers Arranged in a Pattern

A fabric includes base yarns and antistatic spun yarns located in discrete portions of the fabric such that the fabric dissipates static electricity by way of an inductive field and complies with one or more standards for static dissipation in fabric. The antistatic spun yarns may include inductive antistatic staple fibers, and may include less than 20% antistatic fiber. The fabric may be a woven fabric with the antistatic spun yarns inserted into the fabric in both the warp and filling directions in a ratio of antistatic spun yarns to base yarns of from 1:1 to 1:40. The fabrics may be flame resistant and comply with one or more standards for flame resistant fabrics and/or may comply with one or more standards for high visibility apparel. The fabric may have a total antistatic fiber content of less than about 1%. 1. A fabric comprising:base yarns; andantistatic spun yarns comprising inductive antistatic staple fibers,wherein the antistatic spun yarns are located in discrete portions of the fabric such that the fabric complies with one or more standards for static dissipation in fabric.2. The fabric of claim 1 , wherein the standards comprise at least one of EN 1149-5 claim 1 , EN 1149-3 claim 1 , MIL-C-83429B claim 1 , and FTMS 191A Test Method 5931.3. The fabric of claim 1 , wherein the antistatic spun yarns comprise less than 20% inductive antistatic staple fibers.4. The fabric of claim 1 , wherein the antistatic spun yarns are woven or knit into the fabric in a grid pattern or a stripe pattern.5. The fabric of claim 4 , wherein the fabric is a woven fabric and the antistatic spun yarns are inserted into the fabric in both the warp and filling directions.6. The fabric of claim 1 , wherein the fabric is a woven fabric and the antistatic spun yarns are woven into the fabric in one or more of the warp and filling directions in a ratio of antistatic spun yarns to base yarns of from 1:1 to 1:40.7. The fabric of claim 1 , wherein the base yarns are flame resistant yarns ...

Hybrid Composite Yarn

This invention is a hybrid composite yarn comprising: a first polyolefin yarn having >about 80% crystallinity according to WAXS measuring techniques; a second yarn taken from the group consisting of: glass; quartz; carbon; poly(p-phenylene terephthalamide), poly(m-phenylene terephthalamide); poly(vinyl alcohol); poly(1,4-phenylene-2,14-benzibisoxazole) (PBO); poly(1,4-phenylene-2,14-benzobisthiazole) (PBT); poly(benzimidizole) (PBI); poly(ethylene-2,14-naphthalate) (PEN); lyotropic liquid crystalline polymers formed by polycondensation of aromatic organic monomers to form aromatic polyesters, polyamides, aluminia-silicates, basalt, regenerated cellulosic materials and ultra-high molecular weight polyethylene (UHMWPE); and, wherein the first polyolefin yarn and the second yarn are physically combined to form a composite yarn having at least one of the following properties: tenacity greater than about 100% of the expected tenacity based on the volume fraction of the second; an initial modulus >about 100% of the expected modulus based on the volume fraction of the second; elongation at break <about 320% of the elongation at break of the second.

METHOD AND APPARATUS FOR ENTANGLING YARNS

A fluid jet is directed onto a first yarn at least at sonic speed to entangle the first yarn, which is aligned substantially parallel to a main yarn, into the main yarn enabling that yarns having a high yarn count and/or wet yarns can be entangled. 1. A method of entangling a first yarn into a moving main yarn , comprising;aligning the first yarn substantially parallel to the main yarn andsubsequently directing a fluid jet onto the first yarn for separating filaments and/or groups of filaments in the first yarn from each other and to intermingle filaments and/or groups of filaments of the first yarn with filaments and/or groups of filaments of the main yarn to form mechanical friction points between filaments and/or groups of filaments from the first yarn and the main yarn, whereinthe fluid jet is directed onto the first yarn at least at sonic speed.2. The method according to claim 1 , whereina second yarn is aligned substantially parallel to the main yarn andthe fluid jet forms mechanical friction points between filaments and/or groups of filaments from the first yarn, the second yarn and the main yarn.3. The method according to claim 1 , whereinthe first yarn moves at a speed of at least at a speed of 105% of the speed of the main yarn.4. The method according to claim 1 , whereinthe first yarn comprises at least 10 wt. % of a liquid based on the weight of polymer in the first yarn.5. The method according to claim 1 , whereintension on the first yarn is 95% or less of tension on the main yarn.6. The method according to claim 1 , whereinthe fluid jet is directed onto the first yarn for a time period of 0.3 seconds or less.7. The method according to claim 1 , whereinthe fluid jet is reflected, after having intermingled filaments and/or groups of filaments of the first yarn with filaments and/or groups of filaments of the main yarn, such that the fluid jet is redirected onto the main yarn for separating filaments and/or groups of filaments in the main yarn from each ...

Heat Treated Multilayer Knitted Textile of Liquid Crystal Polymer Fibers and Modified Polyacrylonitrile Fibers, and Process for Making Same

The invention relates to a process for manufacturing a multilayer knitted textile by heating a multi-layer knitted textile in the presence of one or more dye compounds, wherein the multilayer knitted textile comprises a fabric outer layer and a fabric inner layer, wherein the fabric outer layer is knit from a first yarn containing a combination of modacrylic fibers and cotton fibers, wherein the fabric inner layer is knit from a second yarn made from 50-90% HBA/HNA filaments, wherein the heating shrinks the outer layer from about 5 to 25% in length, width, or both. 1. A process for manufacturing a multilayer knitted textile , comprising the step of (i) heating a multi-layer knitted textile in the presence of one or more dye compounds at a temperature from 140-350 degrees F. , wherein the multilayer knitted textile comprises a fabric outer layer and a fabric inner layer , wherein the fabric outer layer is knit from a first yarn containing a combination of modacrylic fibers and cotton fibers , wherein the fabric inner layer is knit from a second yarn made from 50-90% HBA/HNA filaments , wherein the heating shrinks the outer layer from about 5 to 25% in length , width , or both.2. The process of claim 1 , wherein the first yarn includes one or more fibers selected from the group consisting of FR rayon fibers claim 1 , Opan fibers claim 1 , and aramid fibers.3. The process of claim 1 , wherein the fabric outer layer is knit having a wale ranging from 17-27 loops per vertical inch and a course ranging from 18-24 loops per horizontal inch claim 1 , and wherein after heating claim 1 , the knit in loops per inch of the fabric outer layer is increased by about 15%.4. The process of claim 1 , wherein the fabric inner layer is attached to the fabric outer layer claim 1 , and the shrinking of the fabric outer layer tightens the knit of the second yarn of the fabric inner layer.5. The process of claim 1 , wherein the heating shrinks the outer layer from about 10 to 20% in length ...

Hygro materials for use in making yarns and fabrics

A process is described wherein pile yarn is woven with cotton weft and warp yarns to produce terry fabrics, such as towels. The fabric is then washed in warm water to dissolve the PVA fibers. The amours of fibers dissolved, depends upon the count of the yarn or yarns used. By dissolving the PVA fibers, a hollow air space is produced throughout the pile yarn, corresponding to an increase in the air space in the pile yarn. By increasing the air space in the pile yarn, the resulting towels are softer and bulkier than standard cotton towels. The present invention further relates to pile yarn in terry woven fabric (warp yarn), or weft yarn, in the case of flat fabrics.

Processing Method of A Non-PVA Hollow Yarn and The Tubular Fabric

The invention discloses the processing method of a non-PVA fiber hollow yarn and the tubular fabric. The fiber shall include filament yarn, staple yarn and ribbon. The processing method applies degradable fiber which is controllable in degradation conditions and has none formaldehyde residue to produce hollow yarn, in contrast with conventional soluble Vinylon hollow yarn, which is environmentally friendly and cheap while has low shrinkage and distinct hollow effect as can be made into high density textile and single yarn textile through sizing process. Furthermore, the tubular fabric as described in this invention spinned with the non-PVA fiber hollow yarn is feature with lightness, fluffy sense, warmth, moisture absorption and softness. 1. Processing method of non-PVA fiber hollow yarn is featured with the following steps:a. Process degradable fiber which is controllable in degradation condition and has none formaldehyde residue. The fiber should include filament yarn, staple yarn and ribbon;b. Cover the degradable fiber which is controllable in degradation condition and has none formaldehyde residue with outer fiber through open-end-spinning or non-open-end-spinning. The outer fiber should include various staple fibers to produce covering yarn;c. Dissolve the degradable fiber which is controllable in degradation condition and has none formaldehyde residue in the covering yarn to produce hollow yarn;Among them, process a shall include preparation of alkaline degradation section, preparation of blended spinning melts and spinning procedure. In process c, the dissolution temperature shall be 20-100° C., the alkaline concentration shall be 1.5-30 g/l, within 20 min-24 hours.2. According to claim 1 , the processing method of non-PVA fiber hollow yarn is featured with that the preparation of alkaline degradation section in process a shall include the following steps: Add sodium sulfonate—isophthalic acid glycol ester at total polymer weight of 1-20% and isophthalic ...

ELECTRONICALLY FUNCTIONAL YARNS

An electronically functional yarn comprises a plurality of carrier fibres () forming a core with a series of electronic devices () mounted on the core with conductive interconnects () extending along the core. A plurality of packing fibres () are disposed around the core, the devices and the interconnects, and a retaining sleeve () is disposed around the packing fibres. The core, the devices and the interconnects are confined within the plurality of packing fibres retained in the sleeve. In the manufacture of the yarn the electronic devices with interconnects coupled thereto in sequence are mounted on the core; the carrier fibres with the mounted devices and interconnects are fed centrally through a channel with packing fibres around the sides thereof to form a fibre assembly around the core, which is fed into a sleeve forming unit in which a sleeve is formed around the assembly to form the composite yarn. 1. An electronically functional yarn having a yarn axis and comprising a plurality of carrier fibres forming a core; a series of electronic devices mounted on the core with conductive interconnects extending along the core; a plurality of packing fibres around the core , the electronic devices and the conductive interconnects; which packing fibres extend generally parallel to the yarn axis to preserve a substantially uniform cross-section along the length of the yarn and between the devices; and a retaining sleeve around the packing fibres , wherein the core , the electronic devices and the conductive interconnects are confined within the plurality of packing fibres retained in the sleeve.2. An electronically functional yarn according to wherein the carrier fibres are arranged in a substantially planar array.3. (canceled)4. An electronically functional yarn according to wherein each of the electronic devices is mounted on at least two carrier fibres.5. An electronically functional yarn according to wherein the packing fibres are independent from one another.6. An ...

HYGRO MATERIALS FOR USE IN MAKING YARNS AND FABRICS

A process is described wherein pile yarn is woven with cotton weft and warp yarns to produce terry fabrics, such as towels. The fabric is then washed in warm water to dissolve the PVA fibers. The amount of fibers dissolved, depends upon the count of the yarn or yarns used. By dissolving the PVA fibers, a hollow air space is produced throughout the pile yarn, corresponding to an increase in the air space in the pile yarn. By increasing the air space in the pile yarn, the resulting towels are softer and bulkier than standard cotton towels. The present invention further relates to pile yarn in terry woven fabric (warp yarn), or weft yarn, in the case of flat fabrics. 1. A method of making a woven fabric , comprising:forming a first sliver comprising water soluble fibers;forming a second sliver comprising natural fibers;combining the first sliver and the second sliver at a draw frame to form a third sliver having water soluble fibers disposed within the natural fibers;forming the third sliver into a roving on a speed frame;spinning the roving into a spun yarn comprising water soluble fibers disposed within the natural fibers;weaving the woven fabric to include the spun yarn; andprocessing the woven fabric with hot water to remove the water soluble fibers from within the natural fibers to create open spaces within the spun yarn in the woven fabric.2. The method of claim 1 , wherein weaving the woven fabric including weaving a terry fabric having a ground and piles that project from the ground claim 1 , wherein the piles comprise the spun yarn; and3. The method of claim 1 , wherein weaving the woven fabric including weaving a flat fabric having a warp yarns and weft yarns claim 1 , wherein either or both of the warp yarns and the weft yarns comprise the spun yarn.4. The method of claim 1 , wherein forming the first sliver comprises:carding the water soluble fibers; anddrawing the water soluble fibers.5. The method of claim 1 , wherein forming the second sliver comprises: ...

POLYAMIDE CRIMPED YARN FOR CLOTHING AND WOVEN OR KNITTED FABRIC FOR CLOTHING COMPRISING SAME

A polyamide crimped yarn for clothing includes a multifilament satisfying conditions (1) to (3): (1) monofilament fineness is at least 1.5 dtex and up to 25 dtex, (2) total fineness is least 400 dtex and up to 1500 dtex, and (3) the monofilament has a multilobal cross section with three or more lobes and a degree of irregularity of at least 1.5 and up to 5.5. 111.-. (canceled)12. A polyamide crimped yarn for clothing comprising a multifilament satisfying conditions (1) to (3):(1) monofilament fineness is at least 1.5 dtex and up to 25 dtex,(2) total fineness is least 400 dtex and up to 1500 dtex, and(3) the monofilament has a multilobal cross section with three or more lobes and a degree of irregularity of at least 1.5 and up to 5.5.13. The polyamide crimped yarn according to claim 12 , wherein the monofilament has a multilobal cross section with 3 or more lobes radially extending from a center of the monofilament cross section claim 12 , a degree of irregularity is at least 1.7 and up to 5.5 claim 12 , and a coefficient of variation (CV claim 12 , %) of the degree of irregularity is less than 7.0 and at least 1.0.14. The polyamide crimped yarn according to claim 12 , wherein the monofilament is a hollow filament having a hollowness of at least 5% and up to 25%.15. The polyamide crimped yarn according to claim 12 , wherein elongation after boiling water treatment is at least 5% and up to 30% claim 12 , and number of interlace nodes is at least 5 nodes/m and up to 50 nodes/m.16. The polyamide crimped yarn according to claim 12 , wherein the yarn is twisted (net twist) claim 12 , and twist factor (K) represented by equation (1) is at least 300 and up to 35 claim 12 ,000{'br': None, 'i': 'K=T×D', 'Twist factor ½\u2003\u2003(1)'}T=twist number per yarn length of 1 m, andD=total fineness (dtex) of the yarn.17. A woven or knitted fabric for clothing containing the polyamide crimped yarn according to .18. The woven or knitted fabric according to claim 17 , containing at ...

Composite materials and structures

The invention provides composite components, structures and method for producing composite components. A composite component has a negative effect Poisson's ratio and comprises a first component and a second component. The first component and the second component extend longitudinally relative to an axis, the first component being provided around the second component through one or more turns which are spaced longitudinally relative to the axis. A variation in the tensile load on the first component causes the radial position of the second component relative to the axis to vary.

SEA-ISLAND COMPOSITE FIBER, MIXED YARN AND FIBER PRODUCT

A sea-island composite fiber includes two or more kinds of island components having different cross section shapes of which an irregularity difference is 0.2 or more in a same fiber cross section, wherein at least one kind of island component has an irregularity of 1.2 to 5.0 and an irregularity coefficient of variation of 1.0 to 10.0%. 1. A sea-island composite fiber comprising two or more kinds of island components having different cross section shapes of which an irregularity difference is 0.2 or more in a same fiber cross section , wherein at least one kind of island component has an irregularity of 1.2 to 5.0 and an irregularity coefficient of variation of 1.0 to 10.0%.2. The sea-island composite fiber according to claim 1 , wherein the at least one kind of island component has an island component diameter of 10 to 1 claim 1 ,000 nm and an island component diameter coefficient of variation of 1.0 to 20.0%.3. The sea-island composite fiber according to claim 1 , wherein the at least one kind of island component has an irregularity of 1.2 to 5.0 claim 1 , an irregularity coefficient of variation of 1.0 to 10.0% claim 1 , an island component diameter of 10 to 1000 nm and an island component diameter coefficient of variation of 1.0 to 20.0%.4. The sea-island composite fiber according to claim 1 , wherein an island component diameter difference of the two or more kinds of island components having different cross section shapes is 300 to 3 claim 1 ,000 nm.5. The sea-island composite fiber according to claim 1 , wherein first island components (A) having an irregularity of 1.2 to 5.0 claim 1 , an irregularity coefficient of variation of 1.0 to 10.0% and an island component diameter of 10 to 1 claim 1 ,000 nm are disposed around a second island component (B) having an island component diameter of 1 claim 1 ,000 to 4 claim 1 ,000 nm.6. A mixed yarn made by removing the sea component from the sea-island composite fiber according to .7. A fiber product made from the sea- ...

APPAREL FABRIC MANUFACTURING PROCESS; SYSTEM AND PRODUCT THEREOF

A process and system for forming an apparel fabric having a predetermined requisite optical colour and pattern effect and predetermined physical fabric properties are disclosed. The process comprises the steps of: (1) providing a first plurality of n yarn; (ii) providing at least one further plurality of m yarn; and (iii) knitting the first plurality of n yarn with the at least one further plurality of m yarn by way of a knitting process to form a multi-ply apparel fabric; wherein each yarn is formed from a plurality of fibers formed from a polymeric material, wherein the fibers are formed from a dope dyeing process and wherein the fibers are colored during the dope dyeing process; wherein upon knitting the first plurality of n yarn with the at least one further plurality of m yarn to form the multi-ply apparel fabric, the apparel fabric is formed having the predetermined requisite optical colour and pattern effect devoid of optically detectable variants in the requisite optical colour and pattern effect; and wherein the first plurality of n yarn and the at least one further plurality of m yarn are selected to provide the predetermined requisite optical colour and pattern effect and the predetermined physical fabric properties. 1. A process of forming an apparel fabric having a predetermined requisite optical colour and pattern effect and having predetermined physical fabric properties , said process comprising the steps of:{'sub': '1', 'providing a first plurality of n yarn, wherein the total denier of n yarn is equal to a first denier (D);'}{'sub': '2', '(ii) providing at least one further plurality of m yarn, wherein the total denier of m yarn is equal to a further Denier (D);'}(iii) forming a plurality of multi-ply yarn each formed from two or more yarn, wherein each multi-ply yarn is formed one of the first plurality of n yarn and the yarn of one of the further plurality of m yarn, whereby the denier of each yarn of the multi-ply yarn collectively provide the ...

MULTIDIRECTIONAL FIBER-REINFORCED TAPE/FILM ARTICLES AND THE METHOD OF MAKING THE SAME

High tenacity, high elongation multi-filament polymeric tapes as well as ballistic resistant fabrics, composites and articles made therefrom. The tapes are fabricated from multi-filament fibers/yarns that are twisted together, bonded together, compressed and flattened. 120-. (canceled)21. A process for forming a layer comprising a plurality of polymeric tapes , the method comprising:a) providing a plurality of polymeric tapes, each polymeric tape comprising a flattened multi-filament yarn, each of said yarns comprising a plurality of continuous polymeric filaments;b) arranging said plurality of polymeric tapes into a side-by-side planar array such that only their edges are in contact with each other;c) optionally applying a polymeric binder material onto said array of tapes; andd) applying heat and/or pressure to said array of tapes under conditions sufficient to consolidate said array of tapes into a substantially planar, unitary layer.22. The process of wherein step c) is conducted.23. A process for forming a multi-layer article comprising performing steps a)-d) of at least twice to thereby form a plurality of layers claim 21 , arranging said plurality of layers into a stack claim 21 , and thereafter applying heat and/or pressure to said stack under conditions sufficient to consolidate said stack into a substantially planar claim 21 , unitary multi-layer article.24. The process of wherein the polymeric tapes comprise at least 95% by weight of ultra-high molecular weight polyethylene filaments and wherein said layer formed from the polymeric tapes comprises at least 95% by weight of ultra-high molecular weight polyethylene filaments.25. The process of wherein each of said yarns comprise a plurality of continuous polymeric filaments that are twisted together and bonded together.26. The process of wherein said yarns comprise a plurality of continuous polymeric filaments that are twisted together and bonded together with at least about 3 twists per inch of yarn length ...

WIPING CLOTH FOR REMOVING MICROBES

A wiping cloth removes microbes and is capable of picking up dirt from the wiped surface of an object and trapping the dirt into the cloth to ensure the retention of the trapped dirt. The wiping cloth is made of a fabric including 50 to 80% by weight of synthetic microfibers with a single fiber fineness of below 1.0 dtex and having a bulk of 2.0 cm/gr or more. 19.-. (canceled)10. A wiping cloth for removing microbes , the wiping cloth made of a fabric comprising 50 to 80% by weight of synthetic microfibers with a single fiber fineness of below 1.0 dtex and having a bulk of 2.0 cm/g or more.11. The wiping cloth according to claim 10 , wherein the single fiber fineness of the synthetic microfibers is 0.1 dtex or less.12. The wiping cloth according to claim 10 , wherein the fabric comprises high shrinkage fibers.13. The wiping cloth according to claim 10 , wherein at least some of the fibers in the fabric are false-twisted.14. The wiping cloth according to claim 10 , wherein the fabric is treated by water jet punching.15. The wiping cloth according to claim 10 , made of a fabric made from a composite yarn consisting of 50 to 80% by weight of synthetic microfibers with a single fiber fineness of below 1.0 dtex and 50 to 20% by weight of synthetic high denier fibers with a single fiber fineness of 1 dtex or more.16. The wiping cloth according to claim 15 , wherein the single fiber fineness of the synthetic microfibers is 0.1 dtex or less.17. The wiping cloth according to claim 10 , which has an ATP level of 100 RLU or less claim 10 , the ATP level serving as an indicator of an amount of dirt in accordance with the abundance of organisms.18. A method of removing microbes comprising wiping with the wiping cloth according to that is wetted with water.19. The wiping cloth according to claim 11 , wherein the fabric comprises high shrinkage fibers.20. The wiping cloth according to claim 11 , wherein at least some of the fibers in the fabric are false-twisted.21. The wiping ...

NYLON FLOORCOVERINGS EMPLOYING VAT DYESTUFFS AND METHODS OF MAKING THE SAME

In one aspect, floor coverings are described herein comprising nylon fibers dyed with at least one vat dyestuff, the dyed nylon fibers exhibiting enhancements to lightfastness, color fastness, wet fastness and/or resistance to household bleach. 1. A dyed fiber composition comprising:nylon fibers dyed with at least one vat dyestuff, the dyed nylon fibers exhibiting a lightfastness rating of at least 3 according to American Association of Textile Chemists and Colorists (AATCC) Test Method 16, Option 3.2. The dyed fiber composition of claim 1 , wherein the lightfastness rating is at least 4.3. The dyed fiber composition of claim 1 , wherein the dyed nylon fibers exhibit a color fastness to ozone rating of at least 4 after 5 exposure cycles according to AATCC 129.4. The dyed fiber composition of claim 3 , the color fastness to ozone rating is 5.5. The dyed fiber composition of claim 1 , wherein the dyed nylon fibers exhibit a wet fastness gray scale rating of at least 4/5 for transfer to an undyed control.6. The dyed fiber composition of claim 5 , wherein the wet fastness gray scale rating is 5/5.7. The dyed fiber composition of claim 1 , wherein the nylon fibers form greige fabric prior to dyeing.8. The fiber composition of claim 1 , wherein the nylon fibers comprise cationic nylon.9. The fiber composition of claim 1 , wherein the nylon fibers are nylon-6 claim 1 ,6.10. The fiber composition of claim 1 , wherein the nylon fibers are nylon-6.11. A method of dyeing a fiber composition comprising:providing greige comprising nylon fibers;contacting the nylon fibers with a dyeing composition comprising at least one vat dyestuff in reduced form; andoxidizing the vat dyestuff applied to the nylon fibers by drying the nylon fibers in air.12. The method of claim 11 , wherein the air has a temperature of 200-300° F.13. The method of claim 11 , wherein the dyed nylon fibers exhibit a lightfastness rating of at least 4 according to AATCC Test Method 16 claim 11 , Option 3.14. The ...

In-Fiber Particle Generation

There is provided a fiber including a cladding material that is disposed along a longitudinal-axis fiber length. A plurality of spherical particles are provided, separated from one another and disposed in a longitudinal line parallel to the longitudinal fiber axis. The particles are in a sequence with controlled periodic spacing between particles along at least a portion of the fiber length. Each spherical particle has a spherical particle material that is embedded within and elementally different than the fiber cladding material.

METHOD OF MAKING TEXTILE PRODUCTS FROM HYGRO MATERIAL

A process is described wherein pile yarn is woven with cotton weft and warp yarns to produce terry fabrics, such as towels. The fabric is then washed in warm water to dissolve the PVA fibers. The amount of fibers dissolved, depends upon the count of the yarn or yarns used. By dissolving the PVA fibers, a hollow air space is produced throughout the pile yarn, corresponding to an increase in the air space in the pile yarn. By increasing the air space in the pile yarn, the resulting towels are softer and bulkier than standard cotton towels. The present invention further relates to pile yarn in terry woven fabric (warp yarn), or weft yarn, in the case of flat fabrics. 124-. (canceled)25. A method of making a textile product , comprising: (i) a first sliver made from one of cotton; blends of polyester and cotton; blends of polyester and viscose; blends of cotton and modal; blends of cotton; silk and modal; blends of cotton and bamboo; blends of cotton and sea weed fibers; blends of cotton and silver fibers; blends of cotton and charcoal fibers; and any combination thereof, and', '(ii) a water-soluble sliver made from water-soluble fibers;, '(a) forming a plurality of slivers comprising,'}(b) forming a roving from the plurality of slivers, comprising forming a twist in the roving by wrapping the plurality of slivers such that the water-soluble sliver forms a core of the roving, and such that a sheath is formed around the core, the sheath comprising the first sliver;(c) spinning the roving into a yarn; and(d) using the yarn to make the textile product, including dissolving the water-soluble fibers from the water-soluble sliver of the yarn to provide space within the yarn itself for absorbing water.26. The method of claim 25 , wherein the spinning of the roving is performed using a ring spinning frame.27. The method of claim 25 , wherein the forming of the roving is performed using a speed frame28. The method of claim 27 , wherein the forming of the twist in the roving is ...

Method for Operating a Spinning Machine with Handling Elements of their Own Work Station for Spinning Back in a Thread along and a Spinning Machine with Handling elements of their Own Work Station

With a method for operating a spinning machine (), with a multiple number of work stations () arranged next to each other, each work station (), as a work element (), features at least one spinning unit () with a spinning device (), one winding device () and handling elements () of their own work station for spinning back in the thread (F). If the spinning process is interrupted, a thread end () on the coil side is provided in a defined receiving position (A) at the work station (). For spinning back in a thread (F), the thread end () on the coil side is cut to length by work elements () of the work station (), in particular the handling elements () of their own work station, received from the receiving position (A), prepared for spinning back in and spun in. A thread end () accumulated on the coil () is sought out by means of a thread seeking device () on the surface of the coil () deliverable by means of multiple work stations () of the spinning machine (), and the thread end () is subsequently moved into the receiving position (A) at the work station (), from which it is received by a work element () of the work station (), in particular by a handling element () of its own work station. A corresponding spinning machine () features at least one thread seeking device () movable in the area of multiple work stations () of the spinning machine (), with a suction nozzle () subjected to negative pressure. At least one transfer element () is provided for moving the thread end () that is sought out from the suction nozzle () to the receiving position (A) at the work station (). 11212328410161718328451016171862632841016171821016171866575262328410161718210161718. Method for operating a spinning machine () , with a multiple number of work stations () arranged next to each other in a longitudinal direction of the spinning machine () , whereas each work station () , as a work element ( , , , , , , ) , features at least one spinning unit () with a spinning device () for ...

Hygro Textile Structures And Related Processes

A woven fabric includes a plurality of warp yarns and a plurality of weft yarns interwoven with the plurality of warp yarns to define the woven fabric. Multiple weft yarns are inserted through the shed during weaving cycle to form higher thread count fabrics. 1. A package dyed plied staple yarn that is elongated along a length , the package dyed plied staple yarn comprising:a first package dyed staple yarn having a first outer sheath of staple fibers twisted together and a first hollow core within the first outer sheath of the staple fibers, wherein the first hollow core extends along the length; anda second package dyed staple yarn having a second outer sheath of staple fibers twisted together and a second hollow core within the first outer sheath of the staple fibers, wherein the second hollow core extends along the length,wherein the first packaged dyed staple yarn and the second package dyed staple yarn are twisted around each other and about a yarn central axis that is aligned with the length of the plied staple yarn.2. The package dyed plied staple yarn of claim 1 , wherein each package dyed staple yarn includes color agents disposed in each of the staple fibers.3. The package dyed plied staple yarn of claim 1 , wherein each package dyed staple yarn is a single end staple yarn.4. The package dyed plied staple yarn of claim 1 , wherein the staple fibers include a) cotton fibers claim 1 , or b) cotton fiber and blends of one or more other fibers.5. The package dyed plied staple yarn of claim 1 , wherein the first and second hollow cores each include water soluble fibers.6. The package dyed plied staple yarn of claim 1 , wherein the water soluble fibers are polyvinyl alcohol fibers.7. The package dyed plied staple yarn of claim 1 , wherein each of the package dyed staple yarn is a ring-spun yarn.8. A process for manufacturing a textile structure claim 1 , comprising:spinning a first staple yarn to include a first outer sheath of staple fibers twisted around a ...

MULTIDIRECTIONAL FIBER-REINFORCED TAPE/FILM ARTICLES AND THE METHOD OF MAKING THE SAME

High tenacity, high elongation multi-filament polymeric tapes as well as ballistic resistant fabrics, composites and articles made therefrom. The tapes are fabricated from multi-filament fibers/yarns that are twisted together, bonded together, compressed and flattened. 120-. (canceled)21. An article fabricated from a plurality of polymeric tapes , wherein each of said polymeric tapes comprises a flattened multi-filament yarn , said yarn comprising a plurality of continuous polymeric filaments that are twisted together and bonded together; which tapes have an ultimate tensile strength of at least 15 g/denier and wherein the value of the ultimate tensile strength (g/denier) of each tape multiplied by the ultimate elongation (%) of each tape is at least 150.22. The article of wherein the article is a non-woven laminate comprising a plurality of said tapes arranged unidirectionally in a side-by-side claim 21 , substantially parallel claim 21 , planar relation to each other and laminated together.23. The article of wherein the article comprises a plurality of non-woven laminates that are stacked together and consolidated claim 21 , wherein adjacent laminates are oriented at different angles relative to the central longitudinal axis of the component tapes of each laminate claim 21 , and wherein each non-woven laminate comprises a plurality of said tapes arranged unidirectionally in a side-by-side claim 21 , substantially parallel claim 21 , planar relation to each other and laminated together.24. The article of wherein said article comprises tapes formed from aramid filaments and tapes formed from polyethylene filaments.25. The article of wherein each of said tapes comprise polyethylene filaments and have an ultimate tensile strength of at least 20 g/denier.26. The article of wherein each of said tapes have an ultimate elongation of at least 5.0%27. The article of wherein each of said tapes has an average cross-sectional aspect ratio of at least about 10:1.28. The article ...

Acetate tow and filters with shape and size used for coding

Disclosed are acetate tow bands comprising identification fibers which can be used for tracking and tracing the acetate tow band 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 acetate tow band, including the manufacturer of the acetate tow band and the customer of the acetate tow band. The distinct features are detectable in a filter comprising the acetate tow band.

FIBERS WITH SHAPE AND SIZE USED FOR CODING

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. 1. Fibers comprising identification fibers ,wherein each of the identification fibers exhibits at least one distinct feature,wherein the identification fibers consist of one or more groups of distinguishable identification fibers, each group of the distinguishable identification fibers being formed by the identification fibers having the same distinct feature or a same combination of distinct features,wherein a number of the identification fibers in each group of the distinguishable identification fibers is defined as a fiber count, wherein at least one of the fiber counts corresponds to a taggant fiber count, andwherein (i) the distinct features in each group of the distinguishable identification fibers and (ii) the one or more taggant fiber counts are representative of at least one supply chain component of the fibers.2. The fibers of claim 1 , further comprising standard fibers.3. The fibers of claim 1 , wherein the distinct features comprise one or more taggant cross-section shapes or one or more taggant cross-section sizes and wherein a number of taggant fiber counts for each group of the distinguishable identification fibers ranges from 1 to 10.4. The fibers of claim 3 , wherein a number of the taggant cross-section shapes ranges from 1 to ...

WOVEN TWILL OR PERCALE TEXTILE FABRIC

An aspect of the present disclosure relates to a woven twill or percale textile fabric, the fabric including: from about 90 to about 2400 ends per inch warp of texturized polyester yarn; and from about 45 to about 600 picks per inch Cotton yarn, wherein total content of cotton present in the fabric is at least about 50% by weight of the fabric, further wherein total thread count in the fabric ranges from about 135 to about 3000. The advantageous fabric realized in accordance with embodiments of the present disclosure can find utility as home textiles. 1. A woven twill or percale textile fabric , the fabric comprising:from 90 to 2400 ends per inch warp of texturized polyester yarn; andfrom 45 to 600 picks per inch cotton yarn,wherein total content of cotton present in the fabric is at least 50% by weight of the fabric, further wherein total thread count in the fabric ranges from 135 to 3000.2. The fabric as claimed in claim 1 , wherein cotton content in the cotton yarn is 100%.3. The fabric as claimed in claim 1 , wherein the cotton yarn is a blend of cotton and any or a combination of a synthetic fibre and a natural fibre.4. The fabric as claimed in claim 1 , wherein the cotton yarn is a blend of cotton and any or a combination of a synthetic fibre and a natural fibre claim 1 , further wherein content of cotton in the blend is at least 90%.5. The fabric as claimed in claim 1 , wherein the texturized polyester yarn is a draw textured yarn.6. The fabric as claimed in claim 1 , wherein the warp of texturized polyester yarn has a denier ranging from 7 to 50.7. The fabric as claimed in claim 1 , wherein the warp of texturized polyester yarn are wound on a multi-pick yarn package at a type A shore hardness ranging from 65 to 80.8. The fabric as claimed in claim 1 , wherein the warp of texturized polyester yarn are wound on the multi-pick yarn package at an angle ranging from about 15 degrees to about 25 degrees.9. The fabric as claimed in claim 1 , wherein number of ...

IMPROVED STIFFNESS AND LUMINESCENT TEXTILES FOR GARMENTS

A garment for watersports formed with at least one textile. The textile comprising a face fabric and a membrane. The membrane being fixed to the face fabric and wherein the textile comprises primary yarns and secondary yarns in which the secondary yarns have a higher stiffness relative to the primary yarns. 2. The garment as claimed in claim 1 , wherein the secondary yarns comprise at least one filament selected from the following group: glass claim 1 , aramid claim 1 , ceramic claim 1 , graphite (or carbon) claim 1 , metal alloys and metal fibres.3. The garment as claimed in claim 1 , wherein a knitted layer is disposed adjacent to the membrane.4. The garment as claimed in claim 3 , wherein the knitted layer and the first layer are disposed on respective sides of the membrane.5. The garment as claimed in claim 1 , wherein luminescent materials may be provided to at least one face fabric and the membrane.6. The garment as claimed in claim 1 , further comprising a hood.7. The garment as claimed in claim 1 , wherein the stiffening yarn is a first stiffening yarn claim 1 , such that a seat region of the coat is formed with a second stiffening yarn of a relatively larger denier than the first stiffening yarn.8. The garment as claimed in claim 1 , wherein predetermined regions of the garment are formed with a reinforcing structure.9. The garment as claimed in claim 8 , wherein the reinforcing structure is formed from the secondary yarns.11. The textile as claimed in claim 10 , wherein the secondary yarns are resiliently biased.12. The textile as claimed in claim 10 , wherein the secondary yarns are a reinforcing structure.13. The textile as claimed in claim 10 , wherein the secondary yarns form an abrasion resistant structure.14. The textile as claimed in claim 10 , wherein the first layer comprises a film layer and a base layer.15. The textile as claimed in claim 10 , wherein the film layer is a chromic material. This application claims priority to Australian ...

METHOD FOR MANUFACTURING FIBROUS YARN

Disclosed is a method for the manufacture of fibrous yarn including the steps, where an aqueous suspension including fibers and at least one rheology modifier is provided, followed by directing the suspension through at least one nozzle, to form at least one yarn, and then dewatering the yarn. 1. A method for producing a fibrous yarn , the method comprising:creating an aqueous suspension comprising virgin plant-based fibers and water; (1) increasing strength of the gel, such that the moist fibrous yarn maintains form during dewatering, by exposing the rheology modifier to an aqueous solution comprising a cation; and', '(2) shear thinning the aqueous suspension by adding, in the aqueous suspension, a dispersion agent configured to modify suspension rheology, wherein the dispersion agent is an anionic long chained polymer;, 'generating a moist fibrous yarn in gel form by crosslinking the aqueous suspension using a rheology modifier, wherein the generating further comprisesdewatering the moist fibrous yarn to a target water concentration, to produce the fibrous yarn.2. The method of claim 1 , wherein dewatering the moist fibrous yarn to produce the fibrous yarn further comprises:drying the moist fibrous yarn using heated vacuum cylindrical drums; andremoving the fibrous yarn from the heated vacuum cylindrical drums when the target water concentration is reached.3. The method of claim 1 , further comprising:collecting water released during dewatering; andreusing the collected water in a subsequent aqueous suspension to produce an additional fibrous yarn.4. The method of claim 1 , wherein the cation is selected from a group consisting of Ca2+ claim 1 , Mg2+ claim 1 , Sr2+ and Ba2+.5. The method of claim 1 , wherein the rheology modifier is selected from: alginic acid claim 1 , sodium alginate claim 1 , pectin claim 1 , carrageenan claim 1 , and nanofibrillar cellulose.6. The method of claim 1 , wherein the aqueous suspension is directed through at least one nozzle.7. The ...

Method for forming melt spun multifilament polyolefin yarn and yarn formed by this method

通过连续微米层的共挤出来制备微米和纳米纤维

多层聚合物复合物膜，包括：形成聚合物基质的第一聚合物材料；以及和所述第一聚合物材料共挤出的第二聚合物材料。所述第二聚合物材料形成多个嵌入所述聚合物基质的纤维。所述纤维具有矩形横截面。

Manufacture of yarn spun on closed-end, high draft spinning systems

A twisted yarn structure includes constituent fibers which extend between a surface and a core of the yarn structure so that at least one portion of each fiber is trapped and bound within the yarn structure by portions of other fibers. The fibers can extend cyclically or in random fashion between an inner region and an outer region of the yarn, and can be twisted in subgroups along the length of the yarn structure to be locked in position therein. To produce the yarn structure having fibers which cyclically extend between the inner and outer regions, the fibers of a drafted strand of fibers from front drafting rollers are spun and passed through an oscillating guide before being wound on a spindle. To produce the yarn structure having fibers which randomly extend between the inner and outer regions, a strand of fibers is passed from a nip between first roller pair into a buckling zone between the first roller pair and a second roller pair whose rollers are rotating at a surface speed slower than the rollers of the first roller pair, and thereafter twisted.

A multi-functional textile consisting of two different layers

본 발명은 해조추출물 성분을 함유하는 폴리에스테르계 섬유로 구성되어 있는 이면층 및 나일론계 섬유로 구성되어 있는 표면층의 이중표면구조를 이루고 , 4방향으로 신축되며, 상기 폴리에스테르계 섬유 및 나일론계 섬유는 해조추출물 및 은나노 성분을 함유하는 것을 특징으로 하는 다기능성 섬유에 관한 것이다. The present invention is consisting of a polyester containing a seaweed extract component textile layer and a nylon-based forms a double-surface structure of a surface layer consisting of a fiber, and expand and contract in four directions, wherein the polyester fibers and nylon fibers The present invention relates to a multifunctional fiber comprising seaweed extract and silver nano component. 4방향 신축, 폴리에스테르, 나일론, 항균섬유, 해조섬유 4-way stretch, polyester, nylon, antibacterial fiber, seaweed fiber

어망용 폴리에스테르 원사

본 발명은 다양한 어획 작업 및 해양 목장용 등의 양식업 분야에 사용되는 어망사에 관한 것으로, 특히, 인장강도가 7.8 g/d 이상이고, 절단신도가 18% 이상인 폴리에스테르 섬유를 포함하고, 원사의 표면에 잔털 모양의 기모가 형성되어 있는 폴리에스테르 섬유를 포함하는 어망용 폴리에스테르 원사에 관한 것이다. 본 발명의 어망용 폴리에스테르 원사는 고강력, 저모듈러스, 고신율의 폴리에스테르 섬유를 포함함으로써, 해양 목장용 어망 제조시 기존의 어망사 등에 비해 현저히 향상된 우수한 기계적 강도, 내마모성, 및 형태안정성 등을 제공하며 장시간 동안 사용이 가능하다.

Production of micro- and nano-fibers by continuous microlayer coextrusion

A multilayered polymer composite film includes a first polymer material forming a polymer matrix and a second polymer material coextruded with the first polymer material. The second polymer material forms a plurality of fibers embedded within the polymer matrix. The fibers have a rectangular cross-section.

Production of micro- and nano-fibers by continuous microlayer coextrusion

A multilayered polymer composite film includes a first polymer material forming a polymer matrix and a second polymer material coextruded with the first polymer material. The second polymer material forms a plurality of fibers embedded within the polymer matrix. The fibers have a rectangular cross-section.

Production of micro- and nano-fibers by continuous microlayer coextrusion

A multilayered polymer composite film includes a first polymer material forming a polymer matrix and a second polymer material coextruded with the first polymer material. The second polymer material forms a plurality of fibers embedded within the polymer matrix. The fibers have a rectangular cross-section.

包含脂族聚酯共混物的纤维以及由其形成的纱、丝束和织物

本公开提供热塑性纤维，所述纤维包含具有不同程度的同分异构纯度的聚乳酸(PLA)聚合物的均质共混物。所述纤维呈现降低的收缩性并且可以提高的生产力形成，特别是利用提高的拉伸比。均质共混物可包含第一PLA聚合物和第二PLA聚合物，其中所述第一PLA聚合物具有对于D‑异构体或L‑异构体而言至少约99％的同分异构纯度，而所述第二PLA聚合物具有对于D‑异构体或L‑异构体而言不大于约98.5％的同分异构纯度。本文进一步包括由所述纤维形成的纱和织物和由所述纱或织物形成的组合物以及制备PLA材料的方法。

Process of making a continuous, multicellular, hollow carbon fiber

The present invention relates to a continuous, multicellular, hollow carbon fiber wherein the fiber structure includes a substantially hollow fiber and multiple internal walls defining multiple integral internal hollow fibers such that the fiber structure comprises a honeycomb-like cross section.

Insulation system from composite material

FIELD: pipe insulation. SUBSTANCE: invention relates to an insulating system for pipes for use in industrial vehicles and cars, which provide for the movement of fluids through pipes and pipelines. The composite system contains one or more layers that can form a rigid laminate upon curing. One or more layers of the composite system include a base layer, which is a woven, knitted or non-woven fibrous backing, an intermediate matrix layer, and a custom surface coating. The customized surface coating can be a solvent-based polymer solution including various additives, which can include color pigments, additives for additional protection against abrasion, additives for thermal protection and / or additives for imparting different textures or appearance to system made of composite material. The self-forming composite system can be cured to form any desired shape for insulation and coating forming operations. EFFECT: invention provides a customizable insulation system that can be configured in an infinite variety of configurations for various applications. 15 cl, 16 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 746 507 C2 (51) МПК B29C 63/06 (2006.01) B29C 70/30 (2006.01) F16L 59/02 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК B29C 63/06 (2021.01); B29C 70/30 (2021.01); F16L 59/02 (2021.01) (21)(22) Заявка: 2019118633, 20.11.2017 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и): САПРЕКС, ЭлЭлСи (US) Дата регистрации: 14.04.2021 Приоритет(ы): (30) Конвенционный приоритет: 18.11.2016 US 62/424,164 (43) Дата публикации заявки: 18.12.2020 Бюл. № 35 (45) Опубликовано: 14.04.2021 Бюл. № 11 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 18.06.2019 2 7 4 6 5 0 7 (56) Список документов, цитированных в отчете о поиске: US 2010154917 A1, 24.06.2010. US 2013306186 A1, 21.11.2013. US 9145627 B2, 29.09.2015. US 20090050256 A1, 26.02.2009. US 6572723 B1, 03.06.2003. US 2688895 A, 14. ...

Absorbable bulky multi-filament draw textured yarn, manufacturing method thereof and medical use using them

본 발명은 벌키 구조를 가지는 생분해성 멀티필라멘트 가연사, 그의 제조방법 및 그를 이용한 의료용 용도에 관한 것이다. The present invention relates to a biodegradable multifilament twisted yarn having a bulky structure, a method for producing the same, and a medical use using the same. 본 발명의 생분해성 멀티필라멘트 가연사는 생분해성 고분자 소재로 이루어진 멀티필라멘트를 가연처리한 것으로서, 가연사 본연의 벌키성과 우수한 소프트감에 더불어, 상기 생분해성 고분자 소재로 이루어진 멀티필라멘트 가연사에 부분적으로 150 내지 1000%의 벌키성을 더 부여함으로써, 상기 벌키 구조에서 세포배양이 가능하며, 세포전달 또는 약물전달 용도에 적합하다. The biodegradable multifilament twisted yarn according to the present invention is a multi-filament made of a biodegradable polymer material, and has a bulkiness and excellent softness of the false twisted yarn, and is part of the multifilament twisted yarn made of the biodegradable polymer material. By further imparting a bulky property of 1000%, cell culture is possible in the bulky structure, and is suitable for cell or drug delivery applications. 생분해성 고분자, 벌키구조, 멀티필라멘트가연사, 세포배양, 봉합사 Biodegradable polymer, bulky structure, multifilament twisted yarn, cell culture, suture

Composite elastomeric yarns and fabric

The present invention relates to composite elastomeric yarns and fabrics, to methods of making same, and to articles in which such yarns and fabrics are used. The composite yarns of the present invention comprise a elastomeric core, an elastomeric thermoplastic sheath disposed about the core and, preferably, fibers mechanically anchored in the sheath. The composite fabrics of the present invention comprise the composite yarns of the present invention and conventional fibers arranged to form a fabric.

C形复合纤维、通过其的c形中空纤维、包含其的面料及其的制备方法

本发明涉及C形复合纤维、通过其的C形中空纤维、包含其的面料及其的制备方法，更详细地涉及C形复合纤维、通过其的C形中空纤维、包含其的面料及其的制备方法，具有得到提高的中空率，并具有优秀的强度及伸度，从而在制备工序中，复合纤维和/或中空纤维几乎不发生变形，在洗脱工序中，将中空纤维的品质下降的现象最小化，当制备为面料时，无需在面料状态下经过减量工序，且制备而成的面料具有优秀的保温性、轻量性。

The manufacture method of the polyester section polar yarn to have uneven fineness and a section

본 발명은 불균일한 섬도 및 단면을 갖는 폴리에스터계 극세사를 제조하는 방법으로, 일반 폴리에스터 대비 알칼리 용출속도가 5∼15배 빠른 개질 폴리에스터와 일반 및 개질 폴리에스터를 각각 용융하여, 구금팩내에 설치된 정지형 혼합장치를 통해 8∼15층으로 적층시키고 이를 12개 이상의 이형 방사공을 구비한 방사구금을 통해 방사한 후 제조한 원사를 제직하여 감량공정에서 알칼리 용출속도가 빠른 개질 폴리에스터를 용출시킴으로써 단섬유 각각이 3∼10로 불균일하게 분할되며 이들중 일부가 직물 표면에 돌출되어 천연실크와 같은 광택과 촉감을 갖게 한다. The present invention is a method for producing a polyester-based microfiber having a non-uniform fineness and cross section, and melts the modified polyester and the general and modified polyester, respectively, 5 to 15 times faster alkali dissolution rate compared to the general polyester, in the detention pack By stacking into 8-15 layers through the stationary mixing device installed and spinning them through spinnerets with 12 or more heterospinning spinnerets, weaving the produced yarn and eluting the modified polyester with high alkali elution rate in the weight loss process. Each of the short fibers is unevenly divided into 3 to 10, and some of them protrude from the surface of the fabric to give a gloss and feel like natural silk.

METHOD FOR PRODUCING A MONOFILENT PRODUCT

复合绝缘系统

本发明的实施例提供了一种用于绝缘和覆盖操作的自成型复合系统。该自成型复合系统可以固化以形成任何所需的形状以用于绝缘和覆盖操作。该复合系统包括一层或多层，其在固化时可形成刚性层状复合材料。该复合系统的一个或多层可包括基底层，该基底层为编织的、针织的或非纺织的基于纤维的基材、间隙基质层和可定制的外涂层。可定制的外涂层可以为溶剂基聚合物溶液，其包含各种添加剂，该添加剂可包括有色颜料，用于额外磨损保护的添加剂，用于热保护的添加剂，和/或用于为复合系统产生各种纹理或可见外观的添加剂。

Melt-spun multifilament polyolefin yarn formation processes and yarns formed therefrom

Disclosed is a method of forming multifilament polyolefin yarns and yarns formed according to the disclosed method. The yarns can be polypropylene yarns and can exhibit any of a high modulus, high tenacity, and a unique crystalline structure for multifilament polyolefin yarns. The process can generally include extruding a polymeric melt including the polyolefin at a relatively high throughput and low spinline tension and quenching the filaments in a liquid bath prior to drawing the fiber bundle at a relatively high draw ratio, for example greater than 10, in some embodiments.

Melt-spun multifilament polyolefin yarn formation processes and yarns formed therefrom

Disclosed is a method of forming multifilament polyolefin yarns and yarns formed according to the disclosed method. The yarns can be polypropylene yarns and can exhibit any of a high modulus, high tenacity, and a unique crystalline structure for multifilament polyolefin yarns. The process can generally include extruding a polymeric melt including the polyolefin at a relatively high throughput and low spinline tension and quenching the filaments in a liquid bath prior to drawing the fiber bundle at a relatively high draw ratio, for example greater than 10, in some embodiments.

Melt-spun multifilament polyolefin yarn formation processes and yarns formed therefrom

Disclosed is a method of forming multifilament polyolefin yarns and yarns formed according to the disclosed method. The yarns can be polypropylene yarns and can exhibit any of a high modulus, high tenacity, and a unique crystalline structure for multifilament polyolefin yarns. The process can generally include extruding a polymeric melt including the polyolefin at a relatively high throughput and low spinline tension and quenching the filaments in a liquid bath prior to drawing the fiber bundle at a relatively high draw ratio, for example greater than 10, in some embodiments.

Melt-spun multifilament polyolefin yarn for mation processes and yarns for med therefrom

Disclosed is a method of forming multifilament polyolefin yarns and yarns formed according to the disclosed method. The yarns can be polypropylene yarns and can exhibit any of a high modulus, high tenacity, and a unique crystalline structure for multifilament polyolefin yarns. The process can generally include extruding a polymeric melt including the polyolefin at a relatively high throughput and low spinline tension and quenching the filaments in a liquid bath prior to drawing the fiber bundle at a relatively high draw ratio, for example greater than 10, in some embodiments.

熔纺聚烯烃复丝纱的形成方法和由其形成的纱线

一种制备聚烯烃复丝纱(30)的方法(10)，包括将聚烯烃和成核剂引入到具有混合歧管(11)的挤出机(12)的入口(13)，经由喷丝头(14)将长丝(9)挤出到冷却浴(16)，用卷取辊(18，20)收集长丝以形成纤维束(28)，使纤维束(28)通过轧辊(23，24，25，26)至油剂敷贴器(22)，使纤维束(28)通过烘箱(43)并用拉伸辊(32，34)拉伸以形成复丝纱(30)和将该复丝纱卷绕到卷取辊(40)上。

High modulus polyolefin fibers exhibiting unique microstructural features

A new class of high modulus polypropylene multifilament fiber and/or yarn is provided. Such a multifilament fiber and/or yarn exhibits an exceptional combination of high strength and toughness with low weight and density. The inventive fibers thus permit replacement of expensive polymeric fibers within certain applications with lower cost alternatives, or replacement of high density components with such low density fibers, without sacrificing strength or durability. Such multifilament fibers are produced through melt-spinning processes and exhibit highly unique microstructures therein, including significant void volumes, interspersed and crossed voids, and nanofilament bridges within such voids. Such microstructural characteristics appear to impart the exceptional properties noted above.

Melt-spun multifilament polyolefin yarn formation processes and yarns formed therefrom

A process (10) of making polyolefin multiflament yarn (30) including feeding a polyolefin and a nucleating agent to the inlet (13) of an extruder (12) having a mixing manifold (11), extruding filaments (9) through a spinneret (14) into a cooling bath (16), collecting the filaments with take-up rolls (18, 20) to form a fiber bundle (28), passing the fiber bundle (28) through nip rolls (23, 24, 25, 26) to a finish applicator (22), passing the fiber bundle (28) through an oven (43) and drawing with draw rolls (32, 34) to form a multifilament yarn (30) and winding the multifilament yarn onto a take-up roll (40).

Melt-spun multifilament polyolefin yarn formation processes and yarns formed therefrom

This invention describes a drawn multifilament yarn having high modulus and high tenacity properties. The drawn multifilament yarn has at least three filaments, each filament including a polyolefin and each filament having a denier of less than about 300 grams/9000 meters, the drawn multifilament yarn having been drawn at a draw ratio of greater than about 6 and the drawn multifilament yarn having a modulus greater than about 40 grams/denier, wherein at least one of the filaments possesses greater than about 80% crystallinity according to WAXS measuring techniques.

Melt-spun multifilament polypropylen yarn formation processes and yarns formed therefrom

Melt-spun multifilament polyolefin yarn formation processes and yarns formed therefrom

method of forming a melted polymer composition, method of forming a multifilament yarn from forming a melted polymer composition, multifilament yarn and reinforcing material

método para formar um fio multifilamentar,fio multifilamentar, e, material de reforço.um processo (10) de fazer fio multifilamentar de poliolefina(30) incluindo suprir uma poliolefina e um agente de nucleação à entrada (13)de um extrusor (12) tendo um distribuidor de mistura (11), extrusar filamentos(9) através de fiandeiras (14) em um banho de resfriamento (16), coletar osfilamentos com rolos de recolha (18, 20) para formar um feixe de fibras (28),passar o feixe de fibras (28) através de espaçamento entre rolos (23, 24, 25,26) para um aplicador de acabamento (22), passar o feixe de fibras (28)através de um forno (43) e estirarcom rolos de laminação (32, 34) para formar um fio multifilamentar (30) e enrolar o fio multifilamentar sobre um rolo de coleta (40). Method for forming a multifilament yarn, multifilament yarn, and reinforcing material. A process (10) for making polyolefin multifilament yarn (30) including supplying a polyolefin and nucleating agent to the inlet (13) of an extruder (12) having a mixing manifold (11), extruding filaments (9) through spinners (14) into a cooling bath (16), collecting the filaments with collection rollers (18, 20) to form a fiber bundle (28), pass the fiber bundle (28) through roll spacing (23, 24, 25,26) to a finishing applicator (22), pass the fiber bundle (28) through an oven (43) and stretch with rollers of lamination (32, 34) to form a multifilament yarn (30) and wind the multifilament yarn over a take-up reel (40).

Multilayer polypropylene yarn formation processes by melt spinning and threads formed from them

Un método que comprende: - formar una composición polimérica fundida que comprende al menos un polipropileno y un agente de nucleación: - extrudir la composición polimérica fundida a través de múltiples orificios para formar múltiples filamentos (9) de lacomposición polimérica, describiendo cada uno de los filamentos extrudidos (9) un hinchamiento a la salida (31)adyacente al orificio; - enfriar los filamentos (9) en un baño líquido (16), calentándose el baño líquido a una temperatura que se encuentraentre 50 °C y 130 °C y cerca de la temperatura de cristalización (Tc) máxima de la composición polimérica y estandola superficie del baño líquido (16) dentro de la distancia del hinchamiento a la salida (31); - recoger los filamentos (9) para formar un haz de fibras multifilamento (28); y - estirar el haz de fibras multifilamento (28) con una relación de estirado superior a aproximadamente 6 para formarun hilo multifilamento estirado (30), en el que el haz de fibras multifilamento (28) se estira mientras se calienta,estando la fuente de calor a una temperatura de entre aproximadamente 120 °C y aproximadamente 150 °C y siendoel tiempo de residencia de los filamentos (9) en el baño líquido (16) lo suficientemente largo como para asegurar lacristalización de los filamentos (9). A method comprising: - forming a molten polymer composition comprising at least one polypropylene and a nucleating agent: - extruding the molten polymer composition through multiple holes to form multiple filaments (9) of the polymer composition, each of which is described extruded filaments (9) a swelling at the outlet (31) adjacent to the hole; - cooling the filaments (9) in a liquid bath (16), the liquid bath being heated to a temperature between 50 ° C and 130 ° C and near the maximum crystallization temperature (Tc) of the polymer composition and being the surface of the liquid bath (16) within the distance of the swelling at the exit (31); - collecting the filaments (9) to form a bundle of ...

Drawn multifilament yarn and method of producing same

A new class of high modulus polypropylene multifilament fiber and/or yarn is provided. Such a multifilament fiber and/or yarn exhibits an exceptional combination of high strength and toughness with low weight and density. The inventive fibers thus permit replacement of expensive polymeric fibers within certain applications with lower cost alternatives, or replacement of high density components with such low density fibers, without sacrificing strength or durability. Such multifilament fibers are produced through melt-spinning processes and exhibit highly unique microstructures therein, including significant void volumes, interspersed and crossed voids, and nanofilament bridges within such voids. Such microstructural characteristics appear to impart the exceptional properties noted above.

Processos para produção de fios multifilamento de polipropileno através de enrolamento por fusão e fios formados destes

Hybrid yarns, methods of making hybrid yarns and fabrics made of hybrid yarns

A hybrid yarn and a fabric including the hybrid yarn are provided. The hybrid yarn is formed of a plurality of fibers of a plurality of different fiber compositions. The different fiber compositions are interspersed throughout the yarn. The yarn may be formed using fibers made of the same material or a plurality of different materials. The different fiber compositions may include fibers of three or more different cross sections, fibers made of different materials or a combination of the two. The materials may be synthetic and/or natural materials. The yarn may be constructed to impart selectable functional characteristics to a fabric without the need to include chemicals to impart those characteristics. Fabrics made with the hybrid yarn will have selectable functional features and also be of lighter weight than previously possible. Hybrid spinnerets may be used to produce hybrid yarns with three or more different fiber cross sections.

Melt-spun multifilament polyolefin yarn formation processes and yarns formed therefrom

Disclosed is a method of forming multifilament polyolefin yarns and yarns formed according to the disclosed method. The yarns can be polypropylene yarns and can exhibit any of a high modulus, high tenacity, and a unique crystalline structure for multifilament polyolefin yarns. The process can generally include extruding a polymeric melt including the polyolefin at a relatively high throughput and low spinline tension and quenching the filaments in a liquid bath prior to drawing the fiber bundle at a relatively high draw ratio, for example greater than 10, in some embodiments.

High Modulus Polyolefin Fibers Exhibiting Unique Microstructural Features

A new class of high modulus polypropylene multifilament fiber and/or yarn is provided. Such a multifilament fiber and/or yarn exhibits an exceptional combination of high strength and toughness with low weight and density. The inventive fibers thus permit replacement of expensive polymeric fibers within certain applications with lower cost alternatives, or replacement of high density components with such low density fibers, without sacrificing strength or durability. Such multifilament fibers are produced through melt-spinning processes and exhibit highly unique microstructures therein, including significant void volumes, interspersed and crossed voids, and nanofilament bridges within such voids. Such microstructural characteristics appear to impart the exceptional properties noted above.

High modulus polyolefin fibers exhibiting unique microstructural features

A new class of high modulus polypropylene multifilament fiber and/or yarn is provided. Such a multifilament fiber and/or yarn exhibits an exceptional combination of high strength and toughness with low weight and density. The inventive fibers thus permit replacement of expensive polymeric fibers within certain applications with lower cost alternatives, or replacement of high density components with such low density fibers, without sacrificing strength or durability. Such multifilament fibers are produced through melt-spinning processes and exhibit highly unique microstructures therein, including significant void volumes, interspersed and crossed voids, and nanofilament bridges within such voids. Such microstructural characteristics appear to impart the exceptional properties noted above.

Melt-spun multifilament polyolefin yarn formation processes and yarns formed therefrom

This invention describes a drawn multifilament yarn having high modulus and high tenacity properties. The drawn multifilament yarn has at least three filaments, each filament including a polyolefin and each filament having a denier of less than about 300 grams/9000 meters, the drawn multifilament yarn having been drawn at a draw ratio of greater than about 6 and the drawn multifilament yarn having a modulus greater than about 40 grams/denier, wherein at least one of the filaments possesses greater than about 80% crystallinity according to WAXS measuring techniques.

Melt-spun multifilament polypropylen yarn formation processes and yarns formed therefrom

Melt-spun multifilament polyolefin yarn formation processes and yarns formed therefrom

一种制备聚烯烃复丝纱(30)的方法(10)，包括将聚烯烃和成核剂引入到具有混合歧管(11)的挤出机(12)的入口(13)，经由喷丝头(14)将长丝(9)挤出到冷却浴(16)，用卷取辊(18，20)收集长丝以形成纤维束(28)，使纤维束(28)通过轧辊(23，24，25，26)至油剂敷贴器(22)，使纤维束(28)通过烘箱(43)并用拉伸辊(32，34)拉伸以形成复丝纱(30)和将该复丝纱卷绕到卷取辊(40)上。