ВАТКА, СОДЕРЖАЩАЯ ИЗВИТЫЕ ДВУХ- ИЛИ МНОГОКОМПОНЕНТНЫЕ ВОЛОКНА, И СПОСОБ ЕЁ ИЗГОТОВЛЕНИЯ

В заявке описана ватка, содержащая извитые двух- или многокомпонентные волокна, состоящие по меньшей мере из двух частей, которые содержат полимер или смесь полимеров в качестве основного компонента и расположение которых в поперечном сечении волокна способствует формированию извитости волокна в процессе его отверждения, причем эти основные компоненты отличаются теплотой кристаллизации. Разница величин теплоты кристаллизации находится в диапазоне от 30 Дж/г до 5 Дж/г, и основные компоненты отличаются по меньшей мере еще одной характеристикой, выбранной из группы, состоящей и индекса текучести расплава, степени полидисперсности и модуля упругости при изгибе, причем разница величин характеристик основных компонентов: для индекса текучести расплава находится в диапазоне от 100 г/10 мин до 5 г/10 мин; и/или для степени полидисперсности не превышает 1 и выше 0,3; и/или для модуля упругости при изгибе находится в диапазоне от 300 МПа до 50 МПа; причем разница величин индекса текучести расплава ...

ЭКСТРУЗИОННЫЙ СПОСОБ ПОЛУЧЕНИЯ ПЛОСКОЙ НИТИ ИЗ СИНТЕТИЧЕСКОГО СЫРЬЯ

Изобретение относится к способу переработки полимеров, в частности к способу получения из полимеров методом экструзии плоских синтетических нитей с заранее заданными характеристиками. Способ включает в себя формирование по меньшей мере двух расплавов с различными свойствами и распределение этих расплавов, по меньшей мере, по трем слоям для образования синтетической пленки, охлаждение этой пленки, резку ее на полосы, а также вытягивание нарезанных полос для образования нитей и намотку полученных таким образом нитей на сердечники. Синтетическое сырье используют в виде гранул, порошка или агломерата. Полученную пленку охлаждают в ванне с водой. После охлаждения пленки проводят удаление воды с ее поверхности. Внутренний слой пленки формируют с наполнителем на основе карбоната кальция в количестве 0,1-50% от массы основного сырья внутреннего слоя. Техническим результатом изобретения является снижение себестоимости изготавливаемой продукции, а также снижение износа экструзионной линии. 12 з.п ...

УСОВЕРШЕНСТВОВАННЫЕ ВОЛОКНА ИЗ ПОЛИМОЛОЧНОЙ КИСЛОТЫ

Изобретение относится к химической технологии волокнистых материалов и касается волокна из модифицированной полимолочной кислоты. Многокомпонентное волокно включает внутренний компонент, окруженный отчетливо выраженным оболочечным компонентом. Внутренний компонент образован полимолочной кислотой, а оболочечный компонент образован полимерной добавкой, повышающей ударную прочность. Конфигурация волокна, включающая внутреннюю часть/оболочку придает получаемому волокну множество различных полезных свойств. Введение полимерной добавки, повышающей ударную прочность, повышает способность волокна поглощать энергию напряжений, возникающих в процессе вытягивания волокна, что повышает общую жесткость и прочность волокон. Кроме того, присутствие в оболочечном компоненте добавки, повышающей ударную прочность, повышает степень связывания с другими волокнами, например, при образовании нетканого полотна. Другой полезный эффект изобретения состоит в том, что конфигурация внутренняя часть/оболочка может ...

ПЛАВКОЕ КЛЕЯЩЕЕ ПОЛИЭФИРНОЕ БИКОМПОНЕНТНОЕ ВОЛОКНО

Изобретение относится к производству химических волокон и касается плавкого клеящего полиэфирного бикомпонентного волокна. Плавкое клеящее бикомпонентное волокно получено посредством вытяжки невытянутой нити, содержащей сложный полиэфир в качестве первого компонента и олефиновый полимер с температурой плавления ниже температуры плавления первого компонента в качестве второго компонента. Двойное лучепреломление в первом компоненте из сложного полиэфира составляет не более 0,150, а отношение двойного лучепреломления в первом компоненте к двойному лучепреломлению во втором компоненте составляет не более 3,0. Степень ориентации оси С кристаллического элемента второго компонента плавкого клеящего бикомпонентного волокна составляет не менее 90%, а прочность одной нити плавкого клеящего бикомпонентного волокна составляет не менее 1,7 сН/дтекс. Изобретение обеспечивает получение сверхтонкого термоусадочного бикомпонентного волокна с высокой производительностью, при котором состояние вытяжки-течения ...

МНОГОКОМПОНЕНТНЫЕ ВОЛОКНА И НЕТКАНЫЕ МАТЕРИАЛЫ, РАЗРУШАЮЩИЕСЯ ПОД ДЕЙСТВИЕМ ВОДЫ

Описываются многокомпонентные волокна, в которых, по меньшей мере, один компонент будет обеспечивать связывание волокон между собой и с другими видами волокон и в котором этот первый компонент способен также разрушаться в водной среде. Такие волокна могут быть использованы для образования волокнистых нетканых материалов, которые могут применяться в качестве составных частей в таких готовых изделиях, как предметы медико-санитарного назначения, полотенца и впитывающие изделия личной гигиены. Технический результат: возможность удаления изделий после использования альтернативными существующими методами. 10 с. и 5 з.п.ф-лы, 3 ил., 1 табл.

ТЕРМОСВЯЗЫВАЕМОЕ ГИДРОФИЛЬНОЕ ДВУХКОМПОНЕНТНОЕ ПОЛИОЛЕФИНОВОЕ ВОЛОКНО И СПОСОБ ЕГО ПОЛУЧЕНИЯ

Использование: получение пушистых волокнистых гигиенических поглощающих материалов. Сущность изобретения: расплавляют два полиолефина, взятых в соотношении 30 : 70 - 70 : 30. Полиолефин ядра имеет более высокую температуру плавления, а в расплав компонента оболочки вводят 0,1 - 5,0% от массы сформованного волокна поверхностно-активного вещества. Элементы формуют в пучок, вытягивают и разрезают на отрезки длиной <35 мм. В качестве поверхностно-активного вещества может неионогенное, катионное, сложный эфир жирной кислоты и глицерина, амид жирной кислоты, полигликолевый амид. Двухкомпонентное термосвязываемое гидрофильное волокно имеет тонину 1 - 7 дтекс и может иметь до 4 извивов. 2 с. и 13 з.п. ф-лы, 4 табл., 4 ил.

НЕТКАНЫЙ МАТЕРИАЛ И СПОСОБ ЕГО ФОРМИРОВАНИЯ

СПОСОБ ИЗГОТОВЛЕНИЯ ЦЕЛЛЮЛОЗНОГО ВОЛОКНА

Изобретение относится к способу изготовления целлюлозного волокна, при котором раствор целлюлозы в третичной аминоокиси выжимается через прядильные отверстия фильеры и выжатые элементарные нити через воздушную щель подаются с вытяжением в осадительную ванну, отличающемуся тем, что способ осуществляется таким образом, чтобы математическое выражение 51,4+0,033•D+1937•М-7,18•Т-0,094•L, -2,50•F+0,045•F, где D - диаметр отверстия, мм; М - вытеснение прядильной массы на отверстие в г/мин, Т - титр отдельной нити, dtex; L - ширина воздушной щели, мм; F - влажность воздуха в воздушной щели, г воды/кг воздуха, давало максимально число 10, при условии, что ширина воздушной щели предусматривается больше 30 мм. Этот способ позволяет получить целлюлозное волокно с очень незначительной склонностью к фибриллированию.

ТЕРМОСКРЕПЛЯЕМОЕ БИКОМПОНЕНТНОЕ ВОЛОКНО С ОТЛИЧНОЙ МЯГКОСТЬЮ И НЕТКАНЫЙ МАТЕРИАЛ, В КОТОРОМ ОНО ИСПОЛЬЗУЕТСЯ

РАСЩЕПЛЯЮЩЕЕСЯ СОПРЯЖЕННОЕ ВОЛОКНО, ЕГО АГРЕГАТ И ВОЛОКНИСТАЯ ФОРМА, ВЫПОЛНЕННАЯ ИЗ РАСЩЕПЛЯЮЩЕГОСЯ СОПРЯЖЕННОГО ВОЛОКНА

... 1. Расщепляющееся сопряженное волокно, содержащее сложнополиэфирный сегмент и полиолефиновый сегмент, в котором расщепляющееся сопряженное волокно содержит две или более частей сложнополиэфирного сегмента, идущего из центра волокна к наружному краю волокна в конфигурации поперечного сечения перпендикулярно его продольному направлению, где, по меньшей мере, одна из двух или более частей сложнополиэфирного сегмента, идущего из центра волокна к наружному краю волокна, находится на наружном краю волокна, и, по меньшей мере, одна из двух или более частей полиэфирного сегмента, идущего из центра волокна к наружному краю волокна, не находится на наружном краю волокна. ! 2. Расщепляющееся сопряженное волокно по п. 1, которое имеет полость. ! 3. Расщепляющееся сопряженное волокно по п. 1 или 2, которое имеет значение W/R 0,1-0,4, где W представляет собой длину дуги сложнополиэфирного сегмента, и R представляет собой длину окружности волокна. ! 4. Агрегат из расщепляющихся сопряженных волокон, содержащих ...

Punktgebundener Vliesstoff

Schmetzklebende Verbundfasern, Verfahren zu ihrer Herstellung und daraus hergestellter schmelzgebundener Stoff oder Oberflächenmaterial

THERMISCH-VERSCHWEISSBARE POLYOLEFINFASERN ENTHALTENDE STATISTISCHE POLYMERE AUS PROPYLEN

HYDROPHILE BINDERFASERN

Separatormaterial für Speicherbatterien und Verfahren zu dessen Herstellung.

Separatormaterial für Speicherbatterien und Verfahren zu dessen Herstellung.

Verbundfäden und damit hergestellte Produkte

Heiss-verschweissbare Faser mit hoher Festigkeit

Verbundfolie

Die Erfindung betrifft eine Verbundfolie (1), vorzugsweise vorgesehen für den Einsatz in der Bauwirtschaft und/oder vorzugsweise zur Verwendung als Baufolie, mit wenigstens einer Funktionsschicht (2), wenigstens einer äußeren Schutzschicht (3) und wenigstens einer inneren Schutzschicht (4), wobei die Funktionsschicht (2) zwischen der äußeren Schutzschicht (3) und der inneren Schutzschicht (4) angeordnet ist. Erfindungsgemäß ist vorgesehen, dass die Funktionsschicht (2) als wenigstens einlagige Membranschicht ausgebildet ist, dass die äußere Schutzschicht (3) als eine Polyolefin aufweisende Vliesschicht und die innere Schutzschicht (4) als eine Polyester aufweisende Vliesschicht ausgebildet sind.

SCHMELZGEBLASENER VLIESSTOFF

Polymermischung

Die vorliegende Erfindung betrifft ein Vlies wie auch eine Vliesfaser, die eine Polymermischung aufweist, die als Basispolymer ein Polyethylen mit einem MFI zwischen 15 und 35, vorzugsweise zwischen 15 und 20 g/10 min nach ISO 1133 und einer Dichte von 0,935 bis 0,965 g/cm3 nach ASTM D-792 hat und die zumindest als zweites Polymer ein LLDPE mit einer Dichte zwischen 0,85 und 0,900 g/cm3 nach ASTM D-762 aufweist. Des Weiteren werden verschiedene Anwendungen zur Nutzung des Vlieses vorgeschlagen.

VLIESSCHICHTSTOFFE MIT VERBESSERTEM SCHÄLWIDERSTAND

Kräuselverstärkungszusatz für Mehrfachkomponentenfilamente

WASSERSTABILE FASERN UND ARTIKEL MIT STÄRKE, SOWIE HERSTELLUNGSVERFAHREN

Verfahren zur Herstellung von thermoadhäsiven Konjugatfasern und von dieselben verwendenden Vlies"

Verfahren zur Herstellung von thermoadhäsiven Konjugatfasern, wobei das Verfahren umfasst: Bereitstellen einer ersten thermoplastischen Harzkomponente (I), die ein mit mindestens einer Art an reaktiver funktioneller Gruppe modifiziertes Polyolefin enthält, und einer zweiten thermoplastischen Harzkomponente (II), umfassend Polyester oder Polyolefin, mit einem höheren Schmelzpunkt als der Schmelzpunkt der ersten thermoplastischen Harzkomponente (I), wobei das mit mindestens einer Art an reaktiver funktioneller Gruppe modifizierte Polyolefin ein Copolymer aus einem Olefinmonomer und einer ungesättigten Carbonsäure, deren Ester oder deren Anhydrid ist, und das Komponentenverhältnis der ersten Komponente und der zweiten Komponente des Faserquerschnitts im Bereich von 10/90 bis 90/10 liegt, Verspinnen der ersten thermoplastischen Harzkomponente (I) und der zweiten thermoplastischen Harzkomponente (II) bei einer Temperatur von 180 bis 350°C, so dass Konjugatfasern erhalten werden, welche die erste ...

Solar reflective fibre

Multi-component polymeric strands including a butene polymer and nonwoven fabric and articles made therewith

In a multi-component polymeric strand having first and second components arranged in distinct zones across the strand cross-section and extending continuously along the length of the strand, the first component, constituting at least a portion of the peripheral surface of the strand, comprises a blend of a butene polymer, a first polyolefin other than a butene polymer and up to Ca. 10%wt ethylene polymer. Non-woven fabrics formed from such multi-component strands have enhanced softness without loss of durability and may be laminated with a further polymeric layers, e.g. a melt-blown layer. The produced fabrics may be used in the manufacture of medical garments, dressings, coverings, wraps, wipes and absorbent personal care products such as diapers, training pants, sanitary napkins and incontinence products.

Bicomponent fibers and textiles made therefrom

A bicomponent sheath core fiber is used to make a polymeric non-woven material having textile qualities. The sheath is an oriented polymer and the core is a polymer that flows or melts at a temperature lower than the melting point of the sheath. Non-woven mats are made of these fibers by heating the mat so that the core material melts, flows, and bonds to adjacent fibers in the non-woven mat The non-woven material may have the qualities of a synthetic leather.

Nonwoven fabric formed from alloy fibres

Pattern densified fabric comprising conjugate fibers

A nonwoven fabric comprising at least 15 percent conjugate fibers having a low melting point component and method of making the same, said fabric comprising high loft regions immediately adjacent densified regions produced by compressing the web at a temperature below the softening point of the low melting point component of the conjugate fiber and at a temperature and pressure sufficient to deform and compact the fibers of the web in only the densified regions.

Low-VOC natural fiber composite material, preparation method therefor and application thereof

In the method, a nanoclay and a resin are blend-spun to prepare modified synthetic fibers, the modified synthetic fibers are mixed with natural fibers or with natural fibers and other fibers to prepare mixed fibers. The mixed fibers may be shredded, mixed, lapped, needle punched or hot pressed, so as to prepare the low-VOC natural fiber composite material. The low-VOC natural fiber composite material can be applied to automobile interior trims after hot pressing. The low-VOC natural fiber composite material has features of low VOC, low density, light weight, low cost, high strength, good toughness, high deformability, high safety, and being environmentally-friendly and recyclable. In preferred embodiments the clay is montmorillonite blend-spun with polypropylene. The preferred natural fibre is hemp.

Methods for making a biodegradable thermoplastic composition

Hot-melt adhesive fibers

Hot melt-adhesive fibers for nonwoven fabrics are provided which (i) comprise a polyethylene resin composition (C) alone, consisting of 50 to 100% by weight of a polyethylene (A) having a density of 0.910 to 0.940 g/cm<3> and a Q value (Q=Mw/Mn) of 4.0 or less and 50 to 0% by weight of a polyethylene (B) having a density of 0.910 to 0.930 g/cm<3> and a Q value of 7.0 or more, or (ii) are composite fibers which contain said composition (C) as one of the composite components and in which said composition (C) forms continuously at least a part of the composite fiber surface. The composite fibres may be obtained by co-spinning with, for example, high density polyethylene, polypropylene or polyester.

Crimped synthetic fibres

... 1,129,399. Composite polypropylene filaments. HERCULES Inc. 25 Sept., 1967 [26 Sept., 1966], No. 43537/67. Heading B5B. A composite filament capable of spontaneous crimping (as defined below) comprises at least two components, one of which is unmodified stereoregular polypropylene, and one of which is stereoregular polypropylene containing an additive to modify the crystallinity thereof, and may be made by extruding the components in a mutually adherent relationship, drawing the resultant filament at a draw ratio of at least 2:1, and relaxing the drawing tension. By spontaneous crimping it is meant that crimp develops immediately upon relaxing the tension or when the filament is heated under tensionfree conditions. The crimp may be heat set. The crystallinity reducing additive may be a nucleating agent, e.g. sodium benzoate, or a crosslinking agent, e.g. a bis-sulphonazide or bis-azidoformate such as decamethylene bis (azidoformate). Side-by-side and sheath-core component arrangements are ...

FIBERS FOR NON-WOVEN FABRICS HAVING BLENDS OF POLYMERS WITH HIGH AND LOW MELT FLOW RATES

Fibrous web and surge layer made from same

Nonwoven webs having excellent fluid handling characteristics are disclosed. The nonwoven webs are made from a combination of binder fibers and structure fibers. The nonwoven webs can be made exclusively from polyolefin polymers without having to contain polyester fibers. Although the webs can be used in numerous applications, the nonwoven materials are particularly well suited as a surge layer in an absorbent article.

FLEXIBLE SPIN FLEECE MATERIAL AS WELL AS EQUIPMENT COMPOUND FLEECE MATERIAL WITH IT

FIBERS FROM ISO-TACTICAL PROPYLENE COPOLYMER, THEIR PRODUCTION AND USE

CIGARETTE FILTER AND PROCEDURE FOR THEIR PRODUCTION

MULTI-COMPONENT PILE FIBER WITH POLYARYLENSULFIDKOMPONENTE

MULTIKOMPONENTFASERN FROM STRENGTH AND POLYMERS

BIKOMPONENTFASERN WITH THE STRONG OAKS CORE SURROUNDINGS THERMOPLASTIC POLYMERS

MULTI-COMPONENT FIBERS WITH LANGKETTIGEN PP

VERFAHREN ZUR HERSTELLUNG VON CELLULOSEFASERN

SEPARABLE KONJUGATFASER WITH POLYACETAL AND FROM THIS WINNING FIBER FORM AS WELL AS WINNING FIBER PRODUCT FROM THIS

POLYMER MIXTURE

PROCEDURE FOR THE PRODUCTION OF A FUNKTIONALISIERTEN POLYOLEFIN, FUNKTIONALISIERTES POLYOLEFIN, TWO-COMPONENT FIBER, FLEECE MATERIAL AND HYGENIC ABSORPTION PRODUCT

FISSILE ELASTOMERS MULTI-COMPONENT FIBERS

WATER-PROOF FIBERS AND ARTICLES WITH STRENGTH, AS WELL AS MANUFACTURING PROCESS

LIQUID-IMPERMEABLE FLEECE MATERIAL FROM BIKOMPONENTEN FILAMENTS

FUSIONBLOWN FLEECE MATERIAL FROM AN ELASTOMER CONTAINING FIBER.

BRANDFÖRMIGES YARN FROM A POLYESTER/CPOLYPROPYLENE MIXTURE AND FROM THIS WEAVING CARPET BASIC FABRIC.

YIELD BONDED FABRICS FROM THREADS.

FIBERS FOR FLEECE MATERIAL PRODUCTION WITH IMPROVED FIRMNESS AND SOFTNESS

SYNTHETIC BIKOMPONENTENFASER AND PROCEDURES FOR YOUR PRODUCTION.

MUSTERMAESSIG CONSOLIDATING, CONJUGATED FIBERS CONTAINING MATERIAL.

CONTINUOUS ONE AND/OR INTERMITTENT ONE THREE-COMPONENT POLYMER FIBERS FOR BONDED FABRICS, AND MANUFACTURING PROCESSES

POLYETHYLENE TEREPHTHALATE SLEEVE/THERMOPLASTIC POLYMER CORE FROM TWO-COMPONENT FIBERS AND PRODUCTS

SPIN FLEECE FROM REUSED PLASTIC AND ITS MANUFACTURING PROCESSES

POROUS ELEMENT

IMPLANTIERBARE FIBERS AND MEDICAL ARTICLES

BIKOMPONENTENFASERN IN COAT NUCLEAR STRUCTURE, WHICH FLUORINE OF POLYMERS CONTAINING AND PROCEEDING TO THEIR PRODUCTION AND USE

FINE FIBERS MADE FROM POLYMER CROSSLINKED WITH RESINOUS ALDEHYDE COMPOSITION

A fine fiber can be made having a structure with an axial core and a coating layer. The fiber can have a polymer core and one or two layers surrounding the core. The fine fiber can be made from a polymer material and a resinous aldehyde (e.g., melamine-aldehyde) composition such that the general structure of the fiber has a polymer core surrounded by at least a layer of the resinous aldehyde composition. WO 2013/043987 PCT/US2012/056511 At' 4 y c4i ...

Ultra-high molecular weight polyethylene fiber with ultra-high cut resistance and preparation method thereof

The present invention relates to an ultra-high molecular weight polyethylene fiber with ultra-high cut resistance, including: an ultra-high molecular weight polyethylene matrix and carbon fiber powder particles dispersed therein. The content of the carbon fiber powder particles is 0.25-10 wt%. The present invention further relates to a method for preparing the ultra-high molecular weight polyethylene fiber with the ultra-high cut resistance and a cut-resistant glove woven therefrom. The test proves that the glove woven from the ultra-high molecular weight polyethylene fiber with the ultra-high cut resistance is soft and comfortable, and does not have prickling sensation. According to the test of the Standard EN388-2003, the level of the cut-resistant grade ranges from 4 to 5. Compared with the application of other existing inorganic high-hardness reinforcing materials, the production process of the ultra-high molecular weight polyethylene fiber with the ultra-high cut resistance of the ...

BICOMPONENT SYNTHETIC FIBRE AND PROCESS FOR PRODUCING SAME

Elastomeric fibers comprising controlled distribution block copolymers

Fibers formed from immiscible polymer blends

MULTICOMPONENT FIBERS COMPRISING A DISSOLVABLE STARCH COMPONENT, PROCESSES THEREFOR, AND FIBERS THEREFROM

Dental floss

FIBERS, TAPES AND FILMS PREPARED FROM OLEFINIC AND SEGMENTED ELASTOMERS

MULTI-COMPONENT FIBERS AND NON-WOVEN WEBS MADE THEREFROM

Degradable multilayer melt blown microfibers

A yarn for articifial grass, a method of manufacturing said yarn and a field of artificial grass in which said yarn is incorporated

Process for producing fine fibers and fabrics thereof

FIBRE REINFORCED HYDRAULIC OR RESIN MATRIX

BONDED FABRIC

High speed spinning of sheath/core bicomponent fibers

Nonwoven fabric made with multicomponent polymeric strands including a blend of polyolefin and elastomeric thermoplastic material

Hydrophilic, multicomponent polymeric strands and nonwoven fabrics made therewith

ARTICLES HAVING ELEVATED TEMPERATURE ELASTICITY MADE FROM IRRADIATED AND CROSSLINKED ETHYLENE POLYMERS AND METHOD FOR MAKING THE SAME

The present invention relates to heat resistance elastic articles comprising a cured, irradiated, or crosslinked or ethylene polymer and a method for making the same. In particular, the invention relates to a shaped article (for example, film or fiber) characterized by improved elasticity at elevated temperatures and comprising a substantially cured, irradiated, or crosslinked homogeneously branched ethylene polymer. The improved elastic article of the present invention is particularly suitable for use in applications where good elasticity must be maintained at elevated temperatures such as, for example, personal hygiene items and disposable infection-control garments at body temperatures of about 100 ~F (38 ~C).

POLYPROPYLENE FIBROUS ELEMENTS AND PROCESSES FOR MAKING SAME

Polypropylene fibrous elements and more particularly polypropylene microfiber fibrous elements, fibrous structures including polypropylene fibrous elements, and processes for making same are provided.

CONJUGATE FIBERS AND NONWOVEN MOLDING THEREOF

A conjugate fiber obtained by melt spinning (A) a crystalline poly-.alpha.-olefin and (B) an ethylene copolymer containing from 40 to 95% by weight of an ethylene unit and from 5 to 60% by weight of at least one dialkylaminoalkylacrylamide comonomer unit represented by formula (I): (I) wherein R1 represents a hydrogen atom or a methyl group, R2 and R3 each represents an alkyl group having from 1 to 4 carbon atoms; and n represents an integer of from 2 to 5, said ethylene copolymer having a melt index of from 10 to 1000 g/10 min as measured according to JIS K-6760, either by aligning the components (A) and (B) in parallel or by aligning the component (A) as a core and the component (B) as a sheath. The conjugated fiber is excellent in thermal adhesion, absorptivity by an acid aqueous solution, and dyeability and can easily be fabricated into a nonwoven fabric or nonwoven molding suited for various applications including separators of lead accumulators.

MELT BLOWN NONWOVEN WEB FROM FIBER COMPRISING AN ELASTOMER

A nonwoven web is prepared from a polymeric blend comprising at least one elastomer and at least one thermoplastic resin. The nonwoven web comprises fibers produced by melt blowing the polymeric blend. Conventional techniques are used to accomplish the melt blowing but due to high viscosity of certain elastomers it is frequently necessary to degrade the polymer blend prior to melt blowing. The nonwoven web exhibits improved extensibility, texture and hand.

SINGLE INGREDIENT, MULTI-STRUCTURAL FILAMENTS

A multi-structural filament comprises a single ingredient having two or more morphologies after extrusion through a die pack wherein one discrete region of the filament comprises one morphology of the ingredient and at least another discrete region of the filament comprises another morphology of the same ingredient, and wherein each region of the filament comprises at least about (7) percent of the filament. A process for the production of the filament is also described.

HIGH ELONGATION SPLITTABLE MULTICOMPONENT FIBERS COMPRISING STARCH AND POLYMERS

Splittable multicomponent fibers, to split fibers made from such splittable fibers, to processes for making such splittable and split fibers, and to nonwovens and other substrates made from the split fibers. The splittable multicomponent fibers can comprise one component comprising thermoplastic starch and another component comprising a non-starch thermoplastic polymer. wherein: (i) said second component is capable of being split or removed from said first component to provide at least one split fiber consisting essentially of said first component; and (ii) wherein the split fiber of said first component can have good elongation properties. The splittable multicomponent fibers can also provide split fibers of the thermoplastic starch component. The split fibers corresponding to the thermoplastic polymer component will have a greater elongation than directly spun thermoplastic fibers which have an equivalent mass through put as the thermoplastic polymer component of the multicomponent fiber ...

MULTICOMPONENT FIBERS COMPRISING A DISSOLVABLE STARCH COMPONENT, PROCESSES THEREFOR, AND FIBERS THEREFROM

A melt spinnable fiber is provided that comprises a first component comprising a thermoplastic polymer, and a second component comprising thermoplastic starch where the second component is not encompassed by another component or components or if encompassed by another component or components then the second component encompasses a hollow core. A particular use of such a fiber is for removal of the second component in the presence of a solvent in order to produce fibers with desired properties. An agent may be present in the second component for controlling the rate of removal of the second component thereby allowing for physical manipulation of the fiber prior to complete removal of the component. The invention is also directed to nonwoven webs and disposable articles comprising the fibers.

STRUCTURES AND FABRICATED ARTICLES HAVING SHAPE MEMORY MADE FROM .ALPHA.-OLEFIN/VINYL OR VINYLIDENE AROMATIC AND/OR HINDERED ALIPHATIC VINYL OR VINYLIDENE INTERPOLYMERS

The present invention pertains to structures and fabricated articles having shape/reshape behavior (and processes for their preparation) comprising: (A) from 1 to 100 weight percent (based on the combined weights of Components A and B) of at least one substantially random interpolymer having an I2 of 0.1 to 1,000 g/10 min and an Mw/Mn of from 1.5 to 20, which comprises: (1) from 38 to 65 mol percent of polymer units derived from: (a) at least one vinyl or vinylidene aromatic monomer, or (b) at least one hindered aliphatic or cycloaliphatic vinyl or vinylidene monomer, or (c) a combination of at least one aromatic vinyl or vinylidene monomer and at least one hindered aliphatic or cycloaliphatic vinyl or vinylidene monomer, and (2) from 35 to 62 mol percent of polymer units derived from ethylene and/or at least one C3-20 .alpha.-olefin; and (B) from 0 to 99 weight percent (based on the combined weights of Components A and B) of at least one polymer other than that of Component A; and (C) ...

BICOMPONENT FIBER AND NONWOVENS MADE THEREFROM

STRETCHABLE NONWOVEN WEB AND METHOD THEREFOR

The invention relates to nonwoven fabrics containing polymeric multiple component fibers which include a core component and a plurality of wing components attached to the core. The polymeric core component has an elasticity that is greater than the elasticity of at least one of the wing polymeric components. The fibers assume a spiral twist configuration in which the plurality of wings substantially spiral about the core. In a preferred embodiment, the nonwoven fabrics have elastic stretch and recovery properties with a textile-like hand.

MONOFILAMENT TAPE

A bicomponent monofilament tape wherein the tape is made from the fusion of the sheaths of at least about 60 bicomponent core-sheath fibers and the bonding of the fused sheaths to the core fibers is disclosed. A process for preparing a bicomponent monofilament tape by providing at least about 60 bicomponent core-sheath fibers; fusing the sheaths; and bonding the fused sheaths to the core fibers is also disclosed.

ARTIFICIAL TURF

An artificial turf has a base layer, a multiplicity of blades fixed to and projecting upward from the base layer, and a mass of infill between the blades and on the base layer. The infill is formed of elongated plastic fibers each having a longitudinally extending inner part of a predetermined first plastic and a longitudinally extending outer part bonded to the inner part and of a predetermined second plastic different from the first plastic.

BICOMPONENT FIBERS, PRODUCTS FORMED THEREFROM AND METHODS OF MAKING THE SAME

Melt blown bicomponent fibers comprising a first thermoplastic polymeric material and a second thermoplastic polymeric material comprising homo- or co-polymer(s) of poly(m-xylene adipamide) or polyphenylene sulfide. The first thermoplastic polymeric material may be one or more homo- or co-polymer(s) of nylon 6 (polycaprolactam), nylon 6,6 (poly(hexamethylene adipamide)), polypropylene, and/or polybutylene terephthalate. A plurality of bicomponent fibers may thermally bonded to one another at spaced apart points of contact to define a porous structure that substantially resists crushing. The nonwoven fabric webs and ravings and self-supporting, three-dimensional porous elements may be formed from the plurality of bicomponent fibers.

PRODUCTION OF DYED TEXTILE MATERIALS COMPRISING POLYPROPYLENE FIBER

The invention relates to a method for producing dyed textiles comprising polypropylene fibres, according to which polypropylene is first mixed into t he melt together with a polyester with a melting point of between 50 and 200 °C, and the mixture is then processed to form undyed polypropylene fibres. S aid fibres are processed to form textiles and the textiles are then dyed in an aqueous bath or printed. The invention also relates to undyed polypropyle ne fibres that are particularly suitable for carrying out said method. ...

DURABLY HYDROPHILIC, THERMOPLASTIC FIBER

... 45848CAN6A Durably hydrophilic, thermoplastic fibers comprising thermoplastic polymer and fluoroaliphatic group-containing non-ionic compound are provided. Methods of preparation are also disclosed.

POINT BONDED NONWOVEN FABRICS

The present invention provides a point bonded polyolefin nonwoven fabric fabricated from conjugate fibers containing a polyolefin and a polyamide. Advantageously, the nonwoven fabric can be point bonded at a temperature significantly below conventional polyolefin nonwoven web bonding temperatures and in a wide range of different bonding temperatures without significantly sacrificing its tensile strength. Additionally provided is a process for producing the point bonded nonwoven fabric.

Process for Producing Fibers for High Strength Non-Woven Materials, and the Resulting Fibers and Non-Wovens

NONWOVEN FABRIC MADE WITH MULTICOMPONENT POLYMERIC STRANDS INCLUDING A BLEND OF POLYOLEFIN AND ELASTOMERIC THERMOPLASTIC MATERIAL

A nonwoven fabric made with multicomponent polymeric strands includes a blend of a polyolefin and elastomeric thermoplastic material in one side or the sheath of the multicomponent polymeric strands. The fabric has improved abrasion resistance and comparable strength and softness properties. The thermoplastic elastomeric copolymer is preferably A-B-A' block copolymer wherein A and A' are each a thermoplastic endblock which includes a styrenic moiety and wherein B is an elastomeric poly(ethylene-butylene) mid block. Composite materials including such multicomponent material bonded to both sides of an inner meltblown layer are also disclosed. 48 ...

LOW DENSITY MICROFIBER NONWOVEN FABRIC

The present invention provides a lofty nonwoven web containing pneumatically drawn filaments, wherein the web has a density from about 0.01 g/cc to about 0.075 g/cc and the microfilaments have a weight-per - unit length between about 0.1 dtex and about 1.5 dtex. The invention also provides a process for producing the lofty nonwoven web.

WATER-DEGRADABLE MULTICOMPONENT FIBERS AND NONWOVENS

Disclosed herein are multicomponent fibers wherein at least one component will permit bonding of the fibers to themselves and other types of fibers and wherein the same first component is also degradable in an aqueous medium. Such fibers can be used to form fibrous nonwoven webs which can be used as components in such end-use products as medical and health care related items, wipes and personal care absorbent articles.

SUPERFINE MICROFIBER NONWOVEN WEB

The present invention provides a web containing superfine microfibers. The web contains a blend of a first group of split microfibers which contains a first polymer component and a second group of split microfibers which contains a second polymer component, wherein at least one of the polymer components is hydrophilic. The invention additionally provides a meltblown fiber web having at least two groups of fibers, wherein each group of the fibers has a distinct cross-sectional configuration.

Water stable compositions and articles comprising starch and methods of making the same

Thermoplastic polymer compositions comprising starch and articles made therefrom are water stable or may be rendered so. One method of making water stable thermoplastic compositions comprises the steps of mixing destructured starch with polyhydric alcohol and acid, and forming an ester condensation reaction product from at least a portion of the polyhydric alcohol and acid. In some embodiments, a pre-polymer formed from the ester condensation reaction may be provided as a pre-polymer that is mixed with the starch.

Elastic nonwoven cloth and fiber product

To provide an elastic nonwoven cloth that is excellent in elastic recovery property and has pleasant texture without stickiness, and a fiber product using the elastic nonwoven cloth, by an elastic nonwoven cloth containing fibers that are spun at a spinning speed of from 500 to 2,500 m/min and contain a low crystalline polypropylene that satisfies (a) [mmmm]=20 to 60% by mol, (b) [rrrr]/(1−[mmmm])≦0.1, (c) [rmrm]>2.5% by mol, (d) [mm]×[rr]/[mr] 2 ≦2.0, (e) weight average molecular weight (Mw)=10,000 to 200,000, and (f) molecular weight distribution (Mw/Mn)<4, and a fiber product using the elastic nonwoven cloth.

Bio-Polymers In Multicomponent Fibers

Multicomponent fibers comprising bio-based thermoplastic polymers, and optionally thermoplastic starch are disclosed. Also disclosed are nonwoven webs and articles formed from these fibers.

Thermoplastic organic fiber, method for preparing the same, fiber composite board using the same and method for preparing the board

Provided are thermoplastic organic fibers including a copolymerized resin of maleic anhydride with polypropylene, a method for preparing the same, a fiber composite board using the thermoplastic organic fibers as a matrix, and a method for manufacturing the fiber composite board. The thermoplastic organic fibers solve the problem of a limitation in improvement of strength caused by low wettability and adhesion between the thermoplastic organic materials used as a matrix according to the related art and reinforcing fibers.

BICOMPONENT FIBER

The present invention relates to a new bicomponent fiber, a nonwoven fabric comprising said new bicomponent fiber and sanitary articles made therefrom. The bicomponent fiber contains a polyethylene-based resin forming at least part of the surface of the fiber longitudinally continuously and is characterized by a Co-monomer Distribution Constant greater than about 45, a recrystallization temperature between 85° C. and 110° C., a tan delta value at 0.1 rad/sec from about 15 to 50, and a complex viscosity at 0.1 rad/second of 1400 Pa.sec or less. The nonwoven fabric comprising the new bicomponent fiber according to the instant invention are not only excellent in softness, but also high in strength, and can be produced in commercial volumes at lower costs due to higher thoughputs and requiring less energy. 1. A bicomponent fiber composed of a polyethylene-based resin (A) and a high-melting point resin (B) whose melting point is higher than that of the above polyethylene-based resin (A) by at least 10° C. , the component ratio by weight of the polyethylene-based resin (A) to the high-melting point resin (B) being in the range of 50/50 to 10/90 , and the polyethylene-based resin (A) forming at least part of the surface of the fiber longitudinally continuously wherein the polyethylene-based resin (A) is characterized by a Co-monomer Distribution Constant greater than about 45 , a recrystallization temperature between 85° C. and 110° C. , a tan delta value at 0.1 rad/sec from about 15 to 50 , and a complex viscosity at 0.1 rad/second of 1400 Pa.sec or less.2. The bicomponent fiber as claimed in claim 1 , wherein the fiber is a core-sheath-type bicomponent fiber claim 1 , and/or a side-by-side-type bicomponent fiber.3. The bicomponent fiber as claimed in claim 1 , wherein the polyethylene-based resin (A) has a single differential scanning calorimetry (DSC) melting peak within the temperature range from 85° C. to 110° C.4. The bicomponent fiber as claimed in claim 1 , wherein ...

Fabricated articles comprising polyolefins

Fabricated articles are disclosed which comprise a polypropylene impact copolymer. The propylene impact copolymer composition comprises from 60 to 90 percent by weight of the impact copolymer composition of a matrix phase, which can be a homopolymer polypropylene or random polypropylene copolymer having from 0.1 to 7 mol percent of units derived from ethylene or C 4 -C 10 alpha olefins. The propylene impact copolymer composition also comprises from 10 to 40 percent by weight of the impact copolymer composition of a dispersed phase, which comprises a propylene/alpha-olefin copolymer having from 6 to 40 mol percent of units derived from ethylene or C 4 -C 10 alpha olefins, wherein the dispersed phase has a comonomer content which is greater than the comonomer content in the matrix phase. The propylene impact copolymer composition is further characterized by having the ratio of the matrix MFR to the dispersed phase MFR being 1.2 or less. The fabricated articles of the present invention can be made at high speeds and are characterized by their soft feel, as compared to fabricated articles made from other propylene impact copolymers.

POLYOLEFIN-BASED ANTISTATIC FIBER, BEING A SINGLE COMPONENT OR A CONJUGATE TYPE FIBER, AND NONWOVEN FABRIC INCLUDING THE SAME

A polyolefin-based antistatic fiber, wherein a polyethylene resin composition containing polyethylene resin (A) obtained using a metallocene catalyst and high molecular antistatic agent (B) forms a fiber surface, and the total amount (at 90° C. for 30 minutes) of volatile organic compounds having up to 20 carbon atoms is 10 ug/g or less. The polyolefin-based antistatic fiber may be in the form of a sheath-core type conjugate fiber in which the polyolefin resin composition forms the sheath. A nonwoven fabric formed from the polyolefin-based antistatic fiber, preferably having a defined surface resistance value, as well as a composite nonwoven fabric and formed body obtained using the nonwoven fabric are further disclosed. 1. A polyolefin-based antistatic fiber , wherein a polyethylene resin composition containing polyethylene resin (A) obtained using a metallocene catalyst and high molecular antistatic agent (B) forms a fiber surface , and the total amount , at 90° C. for 30 minutes , of volatile organic compounds having up to 20 carbon atoms is 10 μg/g or less.2. The polyolefin-based antistatic fiber according to claim 1 , wherein polyethylene resin (A) is a high density polyethylene having a density of 0.94 to 0.97 g/cm.3. The polyolefin-based antistatic fiber according to claim 1 , wherein a melt index claim 1 , measured at 190° C. under 2.16 kg load claim 1 , of polyethylene resin (A) is 10 to 100 g/10 minutes.4. The polyolefin-based antistatic fiber according to claim 1 , wherein the polyethylene resin composition further contains 5 to 20 parts by weight of at least one kind of low density polyethylene resin (C) selected from low density polyethylene resin (c1) obtained using a metallocene catalyst and having a melt index claim 1 , measured at 190° C. under 2.16 kg load claim 1 , of 10 to 100 g/10 minutes and a density of 0.87 to 0.92 g/cm claim 1 , and linear low density polyethylene resin (c2) obtained using the metallocene catalyst and having a melt index ...

CRIMPED CONJUGATED FIBER AND NON-WOVEN FABRIC COMPRISING THE FIBER

It is an object of the present invention to obtain crimped conjugated fibers having excellent crimp properties. The present invention provides a crimped conjugated fiber having a crimpable cross-sectional configuration, wherein a cross section of the fiber includes at least two portions: a portion (a) and a portion (b); the portion (a) includes an olefin polymer (A) and the portion (b) includes an olefin polymer (B); the olefin polymer (A) differs from the olefin polymer (B) in at least any one of Mz/Mw, melting point and MFR; and a specific fatty acid amide is added to the olefin polymer (A) and/or the olefin polymer (B). The present invention also provides a non-woven fabric including said crimped conjugated fiber. 1. A crimped conjugated fiber having a crimpable cross-sectional configuration , wherein a cross section of the fiber comprises at least two portions: a portion (a) and a portion (b); the mass ratio of the portion (a) to the portion (b) [(a):(b)] is in the range of 10:90 to 60:40; the portion (a) comprises an olefin polymer (A) and the portion (b) comprises an olefin polymer (B); the olefin polymer (A) differs from the olefin polymer (B) in at least any one of Mz/Mw , melting point and MFR; and a fatty acid amide having 19 or less carbon atoms is added to the olefin polymer (A) and/or the olefin polymer (B).2. The crimped conjugated fiber according to claim 1 , wherein the difference between the melting points of the olefin polymer (A) and the olefin polymer (B) is less than 20° C.3. The crimped conjugated fiber according to claim 1 , wherein the blended amount of the fatty acid amide having 19 or less carbon atoms is in the range of 0.1 to 10 parts by weight based on 100 parts by weight of the olefin polymer (A) and/or the olefin polymer (B).4. The crimped conjugated fiber according to claim 1 , wherein the crimped conjugated fiber has an eccentric core-sheath configuration in which the portion (a) is a core (a′) and the portion (b) is a sheath (b′).5. ...

Shaped Nonwoven

A nonwoven fabric. The nonwoven fabric can include a first surface and a second surface and a visually discernible pattern of three-dimensional features on one of the first or second surface. Each of the three-dimensional features can define a microzone comprising a first region and a second region. The first and second regions can have a difference in values for an intensive property. The nonwoven further has a plurality of apertures, wherein at least a portion of the aperture abuts at least one of the first region and the second region of the microzone. 1. A nonwoven fabric comprising a first surface , a second surface , and at least first and second visually discernible zones on one of the first or second surface , each of the first and second zones having a visually different pattern of three-dimensional features that each comprise at least two distinct three-dimensional features , each of the patterns of three-dimensional features defining a microzone comprising a first region and a second region that correspond to the at least two distinct three-dimensional features , wherein the difference in values for an intensive property for the first region and the second region of the microzone in the first zone is different than the difference in values for the intensive property for the first region and the second region of the microzone in the second zone , wherein the intensive property is one or more of:a. thickness,b. basis weight,c. volumetric density; andwherein the first surface has a first TS7 value, wherein the second surface has a second TS7 value, and wherein the first TS7 value is different than the second TS7 value.2. The nonwoven fabric of claim 1 , wherein the first TS7 value is in the range of about 3 to about 14 dB V2 rms.3. The nonwoven fabric of claim 1 , wherein the second TS7 value is in the range of about 2 dB V2 rms to about 12 dB V2 rms.4. The nonwoven fabric of claim 1 , wherein the intensive property is thickness claim 1 , and wherein the ...

Method For Making A Spunbonded High Loft Nonwoven Web

The invention relates to a method for making a spunbonded high loft nonwoven web comprising crimped multicomponent fibers, the process comprising continuously spinning the fibers, directing the fibers to a spin-belt by deflectors and/or air streams, laying down the fibers on the spinbelt and pre-consolidating the fibers after laydown using one or more pre-consolidation rollers to form a pre-consolidated web, wherein a first component of the fibers comprises a PP homopolymer and a second component of the fibers comprises a PP/PE copolymer, wherein the pre-consolidation rollers are operated at a temperature of smaller 110° C. and/or a linear contact force of smaller 5 N/mm. 1. A method for making a high loft spunbonded nonwoven web comprising crimped multicomponent fibers , the process comprising continuously spinning the fibers , directing the fibers to a spin-belt by deflectors and/or air streams , laying down the fibers on the spin-belt and pre-consolidating the fibers after laydown using one or more pre-consolidation rollers to form a pre-consolidated web ,characterized in thata first component of the fibers comprises a PP homopolymer and a second component of the fibers comprises a PP/PE copolymer, wherein the pre-consolidation rollers are operated at a temperature of smaller 110° C. and/or a linear contact force of smaller 5 N/mm.2. The method of claim 1 , wherein the pre-consolidation rollers are operated at a temperature of 20-<110° C.3. The method of claim 1 , wherein the pre-consolidation rollers are operated at a linear contact force of 1-4 N/mm.4. The method of claim 1 , wherein the content of ethylene-stemming repetitive units in the PP/PE copolymer is >0-5 wt %.5. The method of claim 1 , wherein the PP/PE copolymer is a random copolymer.6. The method of claim 1 , wherein the PP homopolymer is isotactic.7. The method of claim 1 , wherein the melt flow rates or the polydispersities of the PP homopolymer and the PP/PE copolymer or both differ by less than ...

POLYMERS FOR USE IN FIBERS AND NONWOVEN FABRICS, ARTICLES THEREOF, AND COMPOSITES THEREOF

An ethylene/alpha-olefin interpolymer suitable for use in fibers and nonwovens having a density of from 0.911 to 0.939 g/cc, a Brookfield viscosity of less than or equal to 50,000 cP, and a molecular weight distribution (M/M) of 1.8 to 3.5, and articles thereof. 1. An ethylene/alpha-olefin interpolymer suitable for use in fibers and nonwovens having a density of from 0.911 to 0.939 g/cc , a Brookfield viscosity of less than or equal to 50 ,000 cP , and a molecular weight distribution (M/M) of 1.8 to 3.5.2. The interpolymer of claim 1 , wherein the ethylene/alpha-olefin interpolymer has an M/Mis less than 5.25.3. The interpolymer of claim 1 , wherein the ethylene/alpha-olefin interpolymer has a weight fraction (w) of molecular weight greater than 10g/mole claim 1 , based on the total weight of interpolymer claim 1 , as determined by conventional gel permeation chromatography claim 1 , of less than 2.5%.4. The interpolymer of claim 1 , wherein the ethylene/alpha-olefin interpolymer has a comonomer distribution breadth index of greater than 50%.5. A meltblown nonwoven comprising an ethylene/alpha-olefin interpolymer claim 1 , wherein the ethylene/alpha-olefin interpolymer has:a density of from 0.911 to 0.939 g/cc,a Brookfield viscosity of less than or equal to 50,000 cP, and{'sub': w,cc', 'n,cc, 'a molecular weight distribution (M/M) of 1.8 to 3.5.'}6. The meltblown nonwoven of claim 5 , wherein the ethylene/alpha-olefin interpolymer has an M/Mof less than 5.25.7. The meltblown nonwoven of claim 5 , wherein the ethylene/alpha-olefin interpolymer has a weight fraction (w) of molecular weight greater than 10g/mole claim 5 , based on the total weight of interpolymer claim 5 , and as determined by conventional gel permeation chromatography claim 5 , of less than 2.5%.8. The meltblown nonwoven of claim 5 , wherein the ethylene/alpha-olefin interpolymer has a comonomer distribution breadth index of greater than 50%.9. A composite structure comprising the meltblown nonwoven ...

THREAD AND FABRIC FOR INSECT SCREENS

In order to provide a thread () for producing fabrics () for insect screens (), comprising a core, the core having a coating () which comprises a heat-activatable adhesive for integrally bonding to itself or to other threads of the fabric (), and said core having a higher melting point than the adhesive, to provide a fabric () for insect screens () with a stitch/web structure (), comprising warp threads () and weft threads () which are interconnected at node points () by means of adhesives, to provide an insect screen () comprising a frame () and a fabric () which is clamped by means of the frame (), and to provide a method for producing fabrics () for insect screens (), comprising the steps of a) providing threads () as warp threads () and weft threads (), b) weaving a fabric () using the warp threads () and weft threads (), and c) heating the fabric () to a temperature that is higher than the melting point of the adhesive and lower than the melting point of the core so as to create integral bonds between the warp threads () and the weft threads () at the node points () thereof, which fabric can be processed into a transparent fabric () for insect screens () in a particularly efficient manner, it is proposed that that the coating () comprises hydrophobic repellents. 1452111211. Thread (, ) for producing fabrics () for insect screens (), comprising a core, the core having a coating () which comprises heat-activatable adhesives for integrally bonding to itself or to other threads of the fabric (), and the core having a higher melting point than the adhesive, characterized in that the coating () comprises hydrophobic repellents. This application is the national phase under 371 of International Application No. PCT/EP2012/076004, filed Dec. 18, 2012, which claims priority to German Application No. 102011057150.7, filed Dec. 29, 2011, which applications are hereby incorporated herein by reference in their entireties and from which applications priority is hereby claimed. ...

Shaped Nonwoven

A nonwoven fabric. The nonwoven fabric can include a first surface and a second surface and a visually discernible pattern of three-dimensional features on one of the first or second surface. Each of the three-dimensional features can define a microzone comprising a first region and a second region. The first and second regions can have a difference in values for an intensive property. The nonwoven further has a plurality of apertures, wherein at least a portion of the aperture abuts at least one of the first region and the second region of the microzone. 2. The nonwoven fabric of claim 1 , wherein the first surface has a TS7 value of about 3 to about 14 dB V2 rms and the second surface has a TS7 value different than the TS7 value of the first surface.3. The nonwoven fabric of claim 1 , wherein the second surface has a TS7 value of about 2 dB V2 rms to about 12 dB V2 rms and the first surface has a TS7 value different than the TS7 value of the first surface.4. The nonwoven fabric of claim 1 , wherein the intensive property is thickness claim 1 , and the difference in thickness between the first and second regions is greater than 25 microns.5. The nonwoven fabric of claim 1 , wherein the intensive property is basis weight claim 1 , and the difference in basis weight between the first and second regions is greater than 5 gsm.6. The nonwoven fabric of claim 1 , wherein the intensive property is volumetric density claim 1 , and the difference in volumetric density between the first and second regions is greater than 0.042 g/cc.7. The nonwoven fabric of claim 1 , wherein loose fibers extend into the aperture.8. The nonwoven fabric of claim 7 , wherein the loose fibers extending into the aperture originate in at least one of the abutting first or second regions.10. The nonwoven fabric of claim 9 , wherein the difference in values for the intensive property for one of the microzones in the first zone is an order of magnitude different from the difference in values for at ...

Method for Making a Shaped Nonwoven

A method for making nonwoven fabric. The nonwoven fabric can include three-dimensional features that define a microzone comprising a first region and a second region. The first and second regions can have a difference in values for an intensive property. The nonwoven further has a plurality of apertures, wherein at least a portion of the aperture abuts at least one of the first region and the second region of the microzone. 1. A method for making an apertured nonwoven fabric , the method comprising the steps of:a. providing a fiber laydown surface in the form of a first side of a continuous belt, the continuous belt comprising a reinforcing member and a pattern of three-dimensional raised elements extending outwardly from the reinforcing member on the first side of the continuous belt, the continuous belt further comprising a plurality of openings, each opening allowing fluid communication between the first side of the continuous belt and a second side of the continuous belt;b. providing a fiber melt spinning apparatus above the first side of the continuous belt and a vacuum source below the second side of the continuous belt, wherein the continuous belt can be moved in a machine direction between the fiber spinning apparatus and the vacuum source;c. providing a compaction nip between a first pair of rolls, at least one of the rolls of the first pair of rolls being heated;d. providing an aperturing nip between a second pair of rolls;e. providing a bonding operation comprising a calendar nip;f. melt spinning fibers from the melt spinning apparatus onto the fiber laydown surface as the continuous belt moves in the machine direction over the vacuum source to collect the melt spun fibers onto the fiber laydown surface, the collected melt spun fibers forming a nonwoven web having three-dimensional features, each three-dimensional feature defining a microzone comprising a first region and a second region, the first and second regions having a difference in values for an ...

INTAKE FILTER FOR VEHICLE AND MANUFACTURING METHOD THEREOF

A shaped cross-section composite fiber for an intake filter is manufactured from a single material of polypropylene, without separate binder processing by using the single material of polypropylene as a filter material. The shaped cross-section composite fiber includes: a sheath comprising a reformed polypropylene resin; and a core comprising a polypropylene resin, where the sheath and the core are combined to provide a sheath-core structure. 1. A shaped cross-section composite fiber for an intake filter , the shaped cross-section composite fiber comprising:a sheath comprising a reformed polypropylene resin; anda core comprising a polypropylene resin,wherein the sheath and the core are combined to provide a sheath-core structure.2. The shaped cross-section composite fiber according to claim 1 , wherein the content of the sheath ranges from 40 wt % to 60 wt % claim 1 , and the content of the core ranges from 40 wt % to 60 wt %.3. The shaped cross-section composite fiber according to claim 1 , wherein the reformed polypropylene resin comprises one selected from the group consisting of propylene claim 1 , ethylene claim 1 , butene claim 1 , and combinations thereof.4. The shaped cross-section composite fiber according to claim 1 , wherein the reformed polypropylene resin comprises one selected from the group consisting of random copolymer claim 1 , random terpolymer claim 1 , and combinations thereof.5. The shaped cross-section composite fiber according to claim 1 , wherein the sheath further comprises peroxide.6. The shaped cross-section composite fiber according to claim 1 , wherein the reformed polypropylene resin has a melting point of 130° C. to 135° C. and a melt flow rate of 17 g/10 min to 23 g/10 min.7. The shaped cross-section composite fiber according to claim 1 , wherein the polypropylene resin has a melting point of 160° C. to 163° C. and a melt flow rate of 13 g/10 min to 19 g/10 min.8. The shaped cross-section composite fiber according to claim 1 , ...

Airlaid substrates having at least one bicomponent fiber

An airlaid substrate includes at least one bicomponent fiber having a first region and a second region. The first region includes polypropylene and the second includes a blend of an ethylene-base polymer and an ethylene acid copolymer. The ethylene-base polymer has a density from 0.920 g/cm3 to 0.970 g/cm3 and a melt index (I2) from 0.5 g/10 min to 150 g/10 min. The ethylene acid copolymer includes the polymerized reaction product of from 60 wt % to 99 wt % ethylene monomer and from 1 wt % to 40 wt % unsaturated dicarboxylic acid comonomer, based on the total weight of the monomers in the ethylene acid copolymer. The ethylene acid copolymer having a melt index (I2) from 0.5 g/10 min to 500 g/10 min.

BI-COMPONENT CONTINUOUS FILAMENTS AND ARTICLES MADE THEREFROM

The present disclosure generally relates to bi-component continuous filaments and articles made therefrom. In one embodiment, a bi-component continuous filament is disclosed, comprising a first polymer component forming a sheath; a second polymer component comprising a core that is surrounded by the sheath; and a binding agent adhering the first polymer component to the second polymer component along a length of the filament; wherein an elongation of the bi-component continuous filament is between 33.6±5.0−60.4±5.0 percent; and wherein a tenacity of the bi-component continuous filament is between 1.9±0.2−3.9±0.2 grams per denier (GPD). In some embodiments, the first polymer component comprises a polyamide, polyester, or polyolefin material, preferably a cationic polyamide or a cationic polyester, the second polymer component comprises polyethylene terephthalate (PET), and the binding agent comprises a polyolefin modified by maleic anhydride. 1. A bi-component continuous filament , comprising:a first polymer component forming a sheath;a second polymer component comprising a core that is surrounded by the sheath; anda binding agent adhering the first polymer component to the second polymer component along a length of the filament;wherein an elongation of the bi-component continuous filament is between 33.6±5.0−60.4±5.0 percent; andwherein a tenacity of the bi-component continuous filament is between 1.9±0.2−3.9±0.2 grams per denier (GPD).2. The bi-component continuous filament of claim 1 , wherein the first polymer component comprises a polyamide claim 1 , polyester claim 1 , or polyolefin material.3. The bi-component continuous filament of claim 1 , wherein the first polymer component comprises a cationic polyamide or a cationic polyester.4. The bi-component continuous filament of claim 1 , wherein at least one of the first polymer component and the second polymer component comprises polyamide claim 1 , wherein the polyamide comprises nylon 6; nylon 6 claim 1 ,6; ...

SPUN-LAID WEBS WITH AT LEAST ONE OF LOFTY, ELASTIC AND HIGH STRENGTH CHARACTERISTICS

A continuous filament spun-laid web includes a plurality of polymer fibers within the web, the web having a first thickness and the web being free of any thermal or mechanical bonding treatment. Activation of the web results in at least one of an increase from the first thickness prior to activation to a second thickness post activation in which the second thickness is at least about two times greater than the first thickness, a decrease in density of the web post activation in relation to a density of the web prior to activation, the web being configured to withstand an elastic elongation from about 10% to about 350% in at least one of a machine direction (MD) of the web and a cross-direction (CD) of the web, and the web having a tensile strength from about 50 gram-force/cmto about 5000 gram-force/cm. 1. A continuous filament spun-laid web comprising:{'sup': 3', '3', '2', '2, 'a plurality of polymer fibers entangled within the web such that the web has a thickness from about 0.05 mm to about 76 mm, a density from about 0.002 g/cmto about 0.25 g/cm, and at least one of a tensile strength of at least about 300 gram-force/cmand an indentation force deflection (IFD) of at least about 5 gram-force/cmwhen the web is deflected to reduce web thickness by 65%.'}2. The continuous filament spun-laid web of claim 1 , wherein the polymer fibers include two or more different polymer components.3. The continuous filament spun-laid web of claim 2 , wherein at least two of the polymer components comprise polypropylene and polylactic acid.4. The continuous filament spun-laid web of claim 2 , wherein the fibers have cross-sections selected from the group consisting of side-by-side claim 2 , multilobal claim 2 , sheath-core claim 2 , islands-in-the-sea claim 2 , solid round claim 2 , and hollow round.5. The continuous filament spun-laid web of claim 4 , wherein two or more fibers within the web have different fiber cross-sections.6. The continuous filament spun-laid web of claim 1 , ...

BI-COMPONENT FIBER FOR THE PRODUCTION OF SPUNBOND FABRIC

A bi-component fiber (), in particular for the production of spunbond fabrics (), has a first component () and a second component (), whereby the first component () has a first polymer as an integral part and the second component has a second polymer as an integral part. It is provided that the difference between the melting points of the first component () and the second component () is less than or equal to 8° C. 1. Bicomponent fiber for the production of spunbond fabrics , with a first component and a second component , whereby the first component has a first polymer as an integral part and the second component has a second polymer as an integral part ,characterized in thatthe first component and the second component have melting points that differ from each other by an amount that is less than or equal to 8° C.2. Bicomponent fiber according to claim 1 , characterized in that the difference between the melting points of the first component and the second component is between 1° C. to 8° C.3. Bicomponent fiber according to claim 1 , characterized in that the difference between the melting points of the first component and the second component is in a range from 1° C. to 6° C.4. Bicomponent fiber according to claim 1 , characterized in that the first component and the second component have melt-flow indices that differ by an amount that is less than or equal to 25 g/10 minutes.5. Bicomponent fiber according to claim 4 , characterized in that the melt-flow indices of the first component and the second component in each case are less than or equal to 50 g/10 minutes.6. Bicomponent fiber according to claim 1 , characterized in that the component that forms an outer surface of the bicomponent fiber viewed in the cross-section of the fiber has a lower melt-flow indice than the other component.7. Bicomponent fiber according to characterized in that the component with the lower melting point surrounds the component with the higher melting point.8. Bicomponent fiber ...

BI-COMPONENT FIBER FOR THE PRODUCTION OF SPUNBONDED FABRIC

A bi-component fiber (), in particular for the production of spunbond fabrics (), with a first component () and a second component (), whereby the first component () has a first polymer as an integral part and the second component has a second polymer as an integral part. The first component () has an additive, and the second component () has a percentage by weight of the additive that is smaller than that in the first component (). 1. Bicomponent fiber for the production of spunbond fabrics , with a first component and a second component , whereby the first component has a first polymer as an integral part and the second component has a second polymer as an integral part ,characterized in thatthe first component has an additive, and the second component has a proportion by weight of the additive that is smaller than that in the first component.2. Bicomponent fiber according to claim 1 , characterized in that the proportion by weight of the first component in the bicomponent fiber is less than 50%.3. Bicomponent fiber according to claim 1 , characterized in that the proportion by weight of the first component in the bicomponent fiber is less than 25%.4. Bicomponent fiber according to claim 1 , characterized in that the proportion by weight of the first component in the bicomponent fiber is less than 15%.5. Bicomponent fiber according to claim 1 , characterized in that the proportion by weight of the additive in the second component is at most 33.3% of the proportion by weight of the additive in the first component.6. Bicomponent fiber according to claim 1 , characterized in that the additive is selected from the group consisting of a primary antioxidant claim 1 , a secondary antioxidant claim 1 , a UV absorber claim 1 , a UV stabilizer claim 1 , a flame retardant claim 1 , an antistatic agent claim 1 , a lubricating agent claim 1 , a metal deactivator claim 1 , a hydrophilizing agent claim 1 , a hydrophobizing agent claim 1 , an anti-fogging additive claim 1 , a ...

BI-COMPONENT FIBER FOR THE PRODUCTION OF SPUNBONDED FABRIC

A bi-component fiber (), in particular for the production of spunbond fabrics (), with a first component () and a second component (), whereby the first component () has a first polymer as an integral part and the second component has a second polymer as an integral part. It is provided that the difference between the melt-flow indices of the first component () and the second component () is less than or equal to 25 g/10 minutes and that the melt-flow indices of the first component () and the second component () in each case are less than or equal to 50 g/10 minutes. 1. Bicomponent fiber for the production of spunbond fabrics , with a first component and a second component , whereby the first component has a first polymer as an integral part and the second component has a second polymer as an integral part ,characterized in thatmelt-flow indices of the first component and the second component differ by an amount that is less than or equal to 25 g/10 minutes, and in that the melt-flow indices of both of the first component and the second component are less than or equal to 50 g/10 minutes.2. Bicomponent fiber according to claim 1 , characterized in that the component with the higher melt-flow index forms an outer surface of the bicomponent fiber viewed in a cross-sectional direction of the fiber.3. Bicomponent fiber according to claim 1 , characterized in that the component with the higher melt-flow index completely surrounds the component with a higher melting point.4. Bicomponent fiber according to claim 1 , characterized in that the difference between the melt-flow indices of the first component and the second component is less than or equal to 20 g/10 minutes.5. Bicomponent fiber according to claim 1 , characterized in that the difference between the melt-flow indices of the first component and the second component is 15 g/10 minutes.6. Bicomponent fiber according to claim 1 , characterized in that the difference between the melt-flow indices of the first ...

BI-COMPONENT FIBER FOR THE PRODUCTION OF SPUNBONDED FABRIC

A bi-component fiber (), in particular for the production of spunbond fabrics (), with a first component () and a second component (), whereby the first component () has a first polymer as an integral part and the second component has a second polymer as an integral part. The polymer of one of the two components () has been polymerized with a metallocene catalyst and the polymer of the other component () has been polymerized with a Ziegler-Natta catalyst and subjected to a subsequent visbreaking treatment. 1. Bicomponent fiber for the production of spunbond fabrics , with a first component and a second component , whereby the first component has a first polymer as an integral part and the second component has a second polymer as an integral part ,characterized in thatthe polymer of one of the two components has been polymerized with a metallocene catalyst and in that the polymer of the other component has been polymerized with a Ziegler-Natta catalyst and subjected to a subsequent visbreaking treatment.2. Bicomponent fiber according to claim 1 , characterized in that the difference between the melting points of the first component and the second component is less than or equal to 8° C.3. Bicomponent fiber according to claim 1 , characterized in that the difference between the melting points of the first component and the second component is at most 6° C.4. Bicomponent fiber according to claim 1 , characterized in that the difference between the melting points of the first component and the second component is between 1° C. to 8° C.5. Bicomponent fiber according to claim 1 , characterized in that the difference between the melting points of the first component and the second component is between 1° C. to 6° C.6. Bicomponent fiber according to claim 1 , characterized in that the component whose polymer has been polymerized with a metallocene catalyst forms an outer surface of the bicomponent fiber viewed in a cross-sectional direction of the fiber.7. Bicomponent fiber ...

FABRIC SYSTEM

A composite yarn comprising one or more ultra-high molecular weight polyethylene fibres wrapped around one or more polyurethane-polyurea copolymer fibres.

Method for manufacturing fishing net

Provided is a method for manufacturing a fishing net formed from a plastic net that can be handled by winding or folding although the net has plastic rigidity. The fishing net is manufactured by (1) a step of preparing a multifilament yarn formed by bundling a plurality of core-sheath type composite filaments, in each of which a core component is made of polyethylene terephthalate and a sheath component is made of polyolefin, (2) a step of preparing a yarn thread obtained by paralleling a plurality of the multifilament yarns, (3) a step of twisting or braiding four yarn threads 11, 12, 13, 14 to obtain a net constructed with strands 1 and intersections 2 , (4) a step of heat-treating the net under without pressure to melt the sheath component of the yarn threads 11, 12, 13, 14 constituting the strands 1 and the intersections 2 , followed by solidifying, thus obtaining a plastic net, and (5) a step of forming the fishing net using the plastic net.

Nonwoven cleaning substrate

The presently disclosed subject matter relates to nonwoven materials and their use in cleaning articles. More particularly, the nonwovens are layered structures, which can include a tacky additive. The nonwoven materials can be used to attract and collect particles, and can have improved cleaning efficiency.

LOW-VOC NATURAL FIBER COMPOSITE MATERIAL, PREPARATION METHOD THEREFOR AND APPLICATION THEREOF

The present invention relates to a low-volatile organic compound (VOC) natural fiber composite material, a preparation method therefor and an application thereof. In the method, a nanoclay and a resin are blend-spun to prepare modified synthetic fibers, the modified synthetic fibers are mixed with natural fibers or with natural fibers and other fibers to prepare mixed fibers, and the mixed fibers are shredded, mixed, lapped, needle punched or hot pressed, so as to prepare the low-VOC natural fiber composite material. The low-VOC natural fiber composite material can be applied to automobile interior trims after hot pressing. The low-VOC natural fiber composite material has features of low VOC, low density, light weight, low cost, high strength, good toughness, high deformability, high safety, and being environmentally-friendly and recyclable. 1. A method for preparing a low-volatile organic compound (VOC) natural fiber composite material , comprising:{'b': '1', 'step S: blend-spinning a nanoclay and a resin to prepare modified synthetic fibers; and'}{'b': '2', 'step S: mixing the modified synthetic fibers with natural fibers or with natural fibers and other fibers to prepare mixed fibers, thereby forming the low-VOC natural fiber composite material.'}22. The preparation method according to claim 1 , wherein after the step S claim 1 , the method further comprises:{'b': '3', 'step S: spraying a nanoclay-coupling agent liquid mixture into the mixed fibers, thereby forming the low-VOC natural fiber composite material.'}31. The preparation method according to claim 1 , wherein the step S comprises:blend-pelletizing a nanoclay and resin particles at a high temperature to prepare nanocomposite resin particles;blend-spinning nanocomposite resin particles and resin particles of the same kind to prepare modified synthetic fibers.41. The preparation method according to claim 1 , wherein in the step S claim 1 , the nanoclay is 0.1%-2% of the total weight of the modified ...

MONOFILAMENT STRING FOR USE IN STRING RACKET SPORTS

A monofilament string for use in string racket sports, wherein the monofilament string comprises: a covering material; a core material embedded in the covering material, wherein the core material comprises: a sea region comprising a thermoplastic elastomer; and a plurality of island regions comprising a thermoplastic plastic doped with one or more doping agents, wherein the plurality of island regions is embedded in the sea region; and wherein a geometry and/or a distribution of the island regions in the sea region is such that a tangent modulus of a stress-strain curve of the monofilament string increases with increasing strain in a playing stress range. 1. A monofilament string for use in string racket sports , wherein said monofilament string comprises:a covering material;a core material embedded in said covering material, wherein said core material comprises:a sea region comprising a thermoplastic elastomer; anda plurality of island regions comprising a thermoplastic plastic doped with one or more doping agents, wherein said plurality of island regions is embedded in said sea region; andwherein a geometry and/or a distribution of said island regions in said sea region is such that a tangent modulus of a stress-strain curve of said monofilament string increases with increasing strain in a playing stress range.2. The monofilament string according to claim 1 , wherein said distribution of said island regions is such that said island regions are arranged in a geometrical pattern relative to each other and/or to a longitudinal axis of said monofilament string.3. The monofilament string according to claim 1 , wherein said geometry of said island regions is such that each of said island regions comprises a cross-section with a semi-circular shape and with one surface side leaning close against a surface of said covering material of said monofilament string such said surface side displays a curvature which lines said curvature of said surface of said covering material ...

BICOMPONENT FIBER AND POLYMER COMPOSITION THEREOF

The present disclosure provides for a bicomponent fiber that includes a first region formed of a condensation polymer and a second region formed from a polypropylene blend. The polypropylene blend includes (i) a propylene-based polymer having a density of 0.895 g/cmto 0.920 g/cmand a melt index, I, as determined by ASTM D1238 at 230° C. and 2.16 kg of 0.5 to 150 g/10 minutes; (ii) a maleic anhydride-grafted polypropylene; and (iii) an inorganic Brønsted-Lowry acid having an acid strength pKa value at 25° C. of 1 to 6.5, wherein the polypropylene blend has a 0.03 to 0.3 weight percent of grafted maleic anhydride based on the total weight of the polypropylene blend. The first region is a core region of the bicomponent fiber and the second region is a sheath region of the bicomponent fiber, where the sheath region surrounds the core region. 1. A bicomponent fiber , comprising:a first region formed of a condensation polymer; anda second region formed from a polypropylene blend of:{'sup': 3', '3, 'sub': '2', '(i) a propylene-based polymer having a density of 0.895 g/cmto 0.920 g/cmand a melt index, I, as determined by ASTM D1238 at 230° C. and 2.16 kg of 0.5 to 150 g/10 minutes;'}(ii) a maleic anhydride-grafted polypropylene; and(iii) an inorganic Brønsted-Lowry acid having an acid strength pKa value at 25° C. of 1 to 6.5, wherein the polypropylene blend has a 0.03 to 0.3 weight percent of grafted maleic anhydride based on the total weight of the polypropylene blend.2. The bicomponent fiber of claim 1 , wherein the first region is a core region of the bicomponent fiber and the second region is a sheath region of the bicomponent fiber claim 1 , where the sheath region surrounds the core region.3. The biocomponent fiber of claim 1 , wherein the condensation polymer is selected from the group consisting of polyethylene terephthalate claim 1 , polyethylene terephthalate glycol-modified claim 1 , polybutylene terephthalate claim 1 , polylactic acid claim 1 , polytrimethylene ...

MLTILAYER FIBERS

A multilayer fiber ABA comprising: 1. A multilayer fiber ABA comprising:A) at least two top layers (layer A) comprising propylene copolymer with ethylene having an ethylene derived units content ranging from 3.5 wt % to 6.5 wt %; a melt flow rate according to ISO 1133 (230° C., 2.16 Kg) ranging from 0.5 g/10 min to 5 g/10 min; a fraction of polymer soluble in xylene at 25° C. ranging from 10 wt % to 17wt % based on the total weight of said copolymer:{'sup': 3', '3, 'B) at least one core layer (layer B) comprising a high density polyethylene having a density ranging from 0.942 g/cmto 0.958 g/cm; and having a melt flow rate (MFR measured at 190° C. 5.0 kg) ranging from 0.3 g/10 min to 5 g/10 min.'}2. The multilayer fiber according to claim 1 , wherein the propylene copolymer with ethylene (A) has an ethylene derived units content ranging from 4.0 wt % to 6.5 wt %.3. The multilayer fiber according to claim 1 , wherein the high density polyethylene (B) has a density ranging from 0.945 g/cmto 0.952 g/cm.4. The multilayer film according to claim 1 , wherein the propylene copolymer with ethylene (A) has a melt flow rate according to ISO 1133 (230° C. claim 1 , 2.16 Kg) ranging from 1.5 g/10 min to 4 g/10 min.5. The multilayer film according to claim 1 , wherein the high density polyethylene (B) has a melt flow rate (MFR measured at 190° C. 5.0 kg) ranging from 1.0 g/10 min to 3.0 g/10 min.6. The multilayer film according to claim 1 , wherein the propylene copolymer A) has a tensile modulus in the range of from 500 to 900 MPa.7. The multilayer film according to claim 1 , wherein the propylene copolymer with ethylene (A) has an ethylene derived units content ranging from 4.0 wt % to 6.5 wt %; the high density polyethylene (B) has a density ranging from 0.945 g/cmto 0.952 g/cm; the propylene copolymer with ethylene (A) has a melt flow rate according to ISO 1133 (230° C. claim 1 , 2.16 Kg) ranging from 1.5 g/10 min to 4 g/10 min; and the high density polyethylene (B) has a ...

FIBERS AND ARTICLES INCLUDING THEM

A multi-component fiber including at least first and second components. In some cases, at least a portion of the first component is opaque and microporous, and the second component is different from the first component. In some cases, at least a portion of the second component can be seen through at least a portion of the first component. A fiber having an opaque, microporous region and a see-through region of lower porosity is also disclosed. Fibrous webs including such fibers are also disclosed. In some cases, the fibrous web has at least one first region where first portions of the multiple fibers are opaque and microporous and at least one second region where second portions of the multiple fibers form a see-through region of lower porosity. Articles and laminates including the fibrous webs are disclosed. Methods of making the fibers, fibrous webs, and articles are also disclosed. 1. A multi-component fiber comprising at least first and second components , wherein at least a portion of the first component is opaque and microporous , and wherein the second component is different from the first component.2. The multi-component fiber of claim 1 , wherein the first component further comprises a see-through region of lower porosity than the portion that is opaque and microporous.3. The multi-component fiber of claim 2 , wherein at least a portion of the second component can be seen through the see-through region of lower porosity.4. The multi-component fiber of claim 1 , wherein the multi-component fiber is a core-sheath fiber claim 1 , wherein the sheath comprises the first component claim 1 , and wherein the core comprises the second component.5. The multi-component fiber of claim 1 , wherein the first component and second component are different colors or different shades of the same color.6. A fiber comprising an opaque claim 1 , microporous region and a see-through region of lower porosity.7. The fiber of claim 6 , wherein the fiber comprises a beta-nucleating ...

Shaped Nonwoven

A nonwoven substrate. The nonwoven substrate can have a first surface defining a plane of the first surface and a plurality of three-dimensional features extending outwardly from the plane of the first surface. The plurality of three-dimensional features can have a first three-dimensional feature having a first intensive property having a first value and a second three-dimensional feature having the first intensive property having a second value different from the first value. The nonwoven substrate can have an MD Fuzz Value of less than 0.25 mg/cmwhen tested according to the Fuzz Level Test herein. 1. A nonwoven substrate comprising:a first surface defining a plane of the first surface; and a first three-dimensional feature having a first intensive property having a first value; and', 'a second three-dimensional feature having the first intensive property having a second value different from the first value;, 'a plurality of three-dimensional features extending outwardly from the plane of the of the first surface, wherein the plurality of three-dimensional features comprise{'sup': '2', 'wherein the nonwoven substrate has an MD Fuzz Value of less than 0.25 mg/cmwhen tested according to the Fuzz Level Test herein.'}2. The spunbond nonwoven substrate of claim 1 , comprising monocomponent fibers.3. The spunbond nonwoven substrate of claim 1 , comprising bicomponent fibers.4. The spunbond nonwoven substrate of claim 1 , consisting essentially of continuous spunbond fibers that are mono-component or bicomponent fibers.5. The spunbond nonwoven substrate of claim 1 , further comprising meltblown fibers.6. The spunbond nonwoven substrate of claim 1 , wherein the first intensive property is basis weight.7. The spunbond nonwoven substrate of claim 1 , where in the first intensive property is basis weight and the first value is at least 1.5 times higher than the second value.8. The spunbond nonwoven substrate of claim 1 , wherein the first intensive property is selected from ...

CRIMPED MULTI-COMPONENT FIBERS

Disclosed is a curly fiber having a fiber centroid and comprising a first region having a first centroid and a second region wherein the first region comprises an ethylene/alpha olefin interpolymer composition in an amount of at least 75 weight percent based on total weight of the first region and wherein the ethylene/alpha olefin interpolymer composition is characterized by a low temperature peak and a high temperature peak on an elution profile via improved comonomer composition distribution (ICCD) procedure, and a full width at half maximum of the high temperature peak is less than 6.0° C. and the second region is a material comprising a polymer which is different from the ethylene/alpha-olefin interpolymer of the first region and wherein the regions are arranged such that at least one of the first centroid and the second centroid is not the same as the fiber centroid. 1. A curly fiber having a fiber centroid and comprising a first region having a first centroid and a second region having a second centroid wherein the first region comprises an ethylene/alpha olefin interpolymer composition in an amount of at least 75 weight percent based on total weight of the first region and wherein the ethyl ene/alpha olefin interpolymer composition is characterized by a low temperature peak and a high temperature peak on an elution profile via improved comonomer composition distribution (ICCD) procedure , and a full width at half maximum of the high temperature peak is less than 6.0° C. and the second region is a material comprising a polymer which is different from the ethyl ene/alpha-olefin interpolymer of the first region and wherein the regions are arranged such that at least one of the first centroid and the second centroid is not the same as the fiber centroid.2. The fiber of wherein the ethyl ene/alpha olefin interpolymer composition is further characterized by one or more of: a density in the range of 0.930 to 0.965 g/cm3 claim 1 , a melt index (I2) in the range of ...

LITHIUM ION BATTERY SEPARATOR AND MANUFACTURING METHOD THEREFOR

The present invention relates to a new lithium ion battery separator and a manufacturing method therefor, composite fine-denier POY fibers with polypropylene PP acting as a core and alkali-soluble polyester COPET and polyethylene PE acting as a skin are produced by means of a chemical fiber composite spinning technology, wherein the COPET and PE are distributed as an islands-in-the-sea form, then the POY fibers are arranged as a fabric with a certain breadth by means of beam-warping, the fabric is subjected to stretching and hot-pressing by a hot roll such that the PE component having a low melting point is melted and joined to form a film, and then the COPET is dissolved away by means of an alkali solution such that a place where the COPET is present in the film become pores and PP fibers become the skeleton of the film, thus forming a lithium ion battery separator. 1. A lithium ion battery separator , characterized in that: composite fine-denier POY fibers with polypropylene PP acting as a core and alkali-soluble polyester COPET and polyethylene PE acting as a skin are produced by means of a chemical fiber composite spinning technology , wherein the COPET and PE are distributed as an islands-in-the-sea form , with the COPET being islands and the PE being the sea , then the POY fibers are arranged as a fabric with a certain breadth by means of beam-warping , the fabric is subjected to stretching and hot-pressing by a hot roll such that the PE component having a low melting point is melted and joined to form a film , while the PP and COPET components having higher melting points are formed as a lot of tiny fibers evenly distributed in the PE film , and then the COPET is dissolved away by means of an alkali solution such that a place where the COPET is present in the film become pores and PP fibers become the skeleton of the film , thus finally forming the lithium ion battery separator.2. A manufacturing method of the lithium ion battery separator according to claim ...

POLYMER ALLOY FIBER AND FIBER STRUCTURE FORMED FROM SAME

A polymer alloy fiber that includes a polyolefin (A), a polyester (B) and a styrene-ethylene-butylene-styrene copolymer (C), and is characterized by the fiber diameter CV % being 0.1-2.5% and the dispersion diameter of island components in the fiber cross-sectional surface being 1-1000 nm. It is possible to provide a polymer alloy fiber that is provided with the characteristics of both polyolefin and polyester, in which variations in fiber diameter among single threads are suppressed and also dyeing unevenness are suppressed, that has superior mechanical characteristics and abrasion resistance, and that can be suitably used for a fiber structure. 19-. (canceled)10. A polymer alloy fiber comprising a polyolefin (A) , a polyester (B) , and a styrene-ethylene-butylene-styrene copolymer (C) , having a fiber diameter CV % of 0.1% to 2.5% , and containing an island component with a dispersion diameter of 1 to 1 ,000 nm in a transverse cross section of the fiber.11. The polymer alloy fiber as set forth in claim 10 , wherein the styrene-ethylene-butylene-styrene copolymer (C) accounts for 0.1 to 30.0 parts by weight relative to the total quantity claim 10 , which accounts for 100 parts by weight claim 10 , of the polyolefin (A) claim 10 , the polyester (B) claim 10 , and the styrene-ethylene-butylene-styrene copolymer (C).12. The polymer alloy fiber as set forth in claim 10 , wherein the styrene-ethylene-butylene-styrene copolymer (C) contains 15.0 to 45.0 parts by weight of the styrene block (C1).13. The polymer alloy fiber as set forth in claim 10 , wherein the styrene-ethylene-butylene-styrene copolymer (C) has a weight ratio (C2/C3) between the ethylene block (C2) and the butylene block (C3) of 0.1 to 1.0.14. The polymer alloy fiber as set forth in claim 10 , wherein the styrene-ethylene-butylene-styrene copolymer (C) contains at least one functional group selected from the group consisting of anhydride groups claim 10 , amino groups and imino groups.15. The polymer ...

POLYMETHYLPENTENE CONJUGATE FIBER OR POROUS POLYMETHYLPENTENE FIBER AND FIBER STRUCTURE COMPRISING SAME

Provided are a polymethylpentene conjugate fiber, which is capable of imparting to a lightweight polymethylpentene fiber an ability to develop a vivid and deep color, and a porous polymethylpentene fiber, which has a lightweight, a high pore diameter uniformity and a high porosity retention ratio against an external force, said polymethylpentene conjugate fiber and said porous polymethylpentene fiber being appropriately usable as a fiber structure for woven knitted goods, non-woven fabrics, yarns, cotton waddings, etc. The polymethylpentene conjugate fiber is characterized by having an island-in-sea structure wherein the sea component comprises a polymethylpentene-based resin and the island component comprises a thermoplastic resin. The porous polymethylpentene fiber, which comprises a polymethylpentene-based resin, is characterized in that the coefficient of variation (CV) of pore diameter at the fiber cross section is 1-50%. 1. Polymethylpentene conjugate fiber having a sea-island structure comprising polymethylpentene based resin as sea component and thermoplastic resin as island component.2. Polymethylpentene conjugate fiber as set forth in claim 1 , wherein the thermoplastic resin of the island component comprises one or more compounds selected from the group consisting of polyester claim 1 , polyamide claim 1 , thermoplastic polyacrylonitrile claim 1 , thermoplastic polyurethane claim 1 , and cellulose derivatives.3. Polymethylpentene conjugate fiber as set forth in claim 1 , wherein the coefficient of variation CV of the dispersion diameter of the island domains in a fiber cross section is 1 to 50%.4. Polymethylpentene conjugate fiber as set forth in claim 1 , wherein the content ratio (by weight) of the sea component to the island component is 20/80 to 99/1.5. Polymethylpentene conjugate fiber as set forth in claim 1 , wherein the dispersion diameter of the island domains in a fiber cross section is 0.001 to 2 μm.6. Polymethylpentene conjugate fiber as set ...

METHOD FOR PREPARING SIMULATED LAWN

A method for preparing a simulated lawn is provided, which comprises wiredrawing, coiling, weaving and post-processing raw materials, to obtain a simulated lawn product, wherein the weaving is straight yarn-curled yarn-interlacing weaving, in which one line of curled yarn is weaved between two adjacent straight yarns, and spacing between adjacent straight yarns is ⅜ to ¾ inches and knitting needle number is 150 to 350 needles/meter. 1. A method for preparing a simulated lawn , comprising:wiredrawing, coiling, weaving and post-processing raw materials, to obtain the simulated lawn,wherein the weaving is straight yarn-curled yarn-interlacing weaving, in which one line of curled yarn is weaved between two adjacent straight yarns, a spacing between adjacent straight yarns is ⅜ to ¾ inches and a knitting needle number is 150 to 350 needles/meter.2. The preparation method of claim 1 , wherein the wiredrawing comprises: after mixing the raw materials claim 1 , extruding claim 1 , stretching claim 1 , shaping and winding successively to obtain a straight grass yarn.3. The preparation method of claim 1 , wherein claim 1 , by mass claim 1 , the raw materials comprises 90 to 100 parts of linear low-density polyethylene claim 1 , 0 to 10 parts of low-density polyethylene claim 1 , 4 to 10 parts of color masterbatch claim 1 , 1 to 2 parts of smooth masterbatch claim 1 , and 0.7 to 1 part of PPA.4. The preparation method of claim 2 , wherein the shaping is water mist shaping claim 2 , and the temperature of the water mist shaping is 40° C. to 100° C.5. The preparation method of claim 2 , wherein the curled yarn is obtained by circular-knitting shaping and rewinding of the straight grass yarn and height of the curled yarn is less than 60% of that of the straight grass yarn.6. The preparation method of claim 5 , wherein the preparation method further comprising twisting; and the straight grass yarn and the curled yarn are subjected to twisting before the weaving.7. The preparation ...

DYEABLE POLYOLEFIN FIBER AND FIBROUS STRUCTURE COMPRISING SAME

A dyeable polyolefin fiber is a polymer alloy fiber having a sea-island structure in which the sea ingredient comprises a polyolefin (A) and the island ingredient comprises a polyester (B), the fiber having a degree of elongation of 10-80%. The polyester (B) in the dyeable polyolefin fiber has an orientation parameter, as determined by Raman spectroscopy, of 1.1-10.0. The dyeable polyolefin fiber is a highly lightweight polyolefin fiber capable of being brightly and deeply colored, is excellent in terms of color fastness and evenness in dyeing, and is suitable for use as a fibrous structure. 17-. (canceled)8. A dyeable polyolefin fiber comprising a polymer alloy fiber having a sea-island structure comprising a polyolefin (A) as a sea component and a polyester (B) as an island component and having a degree of elongation of 10 to 80% , wherein the polyester (B) in the dyeable polyolefin fiber has an orientation parameter , as determined by Raman spectroscopy , of 1.1 to 10.0.9. The dyeable polyolefin fiber according to claim 8 , wherein the polyester (B) in the dyeable polyolefin fiber has a crystallinity claim 8 , as determined by Raman spectroscopy claim 8 , of 1 to 40%.10. The dyeable polyolefin fiber according to claim 8 , wherein a main constituent component of the polyester (B) is a dicarboxylic acid component (B1) and a diol component (B2) claim 8 , the dicarboxylic acid component (B1) is at least one dicarboxylic acid component (B1) selected from an aliphatic dicarboxylic acid (B1-1) claim 8 , an alicyclic dicarboxylic acid (B1-2) and an aromatic dicarboxylic acid (B1-3).11. The dyeable polyolefin fiber according to claim 10 , wherein the diol component (B2) is at least one diol component (B2) selected from an aliphatic diol (B2-1) claim 10 , an alicyclic diol (B2-2) and an aromatic diol (B2-3).12. The dyeable polyolefin fiber according to claim 8 , wherein a main constituent component of the polyester (B) is at least one selected from the group consisting of ...

Method for thermoforming product of filaments

To provide a thermoforming method for obtaining a thermoformed article that exhibits excellent abrasion resistance at melt-bonded portions, and excellent adhesive strength between woven fabrics or to another kind of article. Polyethylene having a melt flow rate, measured under conditions of a temperature of 280° C. and a load of 2.16 kg, of 10 to 15 g/10 min and polyethylene terephthalate are prepared. By a conjugate melt spinning method using the polyethylene terephthalate as a core component and the polyethylene as a sheath component, multi-filament yarn in which core-sheath composite filaments having a core component:sheath component mass ratio of 1 to 4:1 are bundled is obtained. A product of filaments is obtained by weaving, knitting, braiding or winding using the multi-filament yarn. Thermoforming of the product of filaments is carried out by heating the product of filaments to melt the polyethylene, thereby melt-bonding the core-sheath composite filaments to each other, with the polyethylene terephthalate retaining its initial filament form.

METHOD OF MANUFACTURING HIGH STRENGTH SYNTHETIC FIBERS, AND HIGH STRENGTH SYNTHETIC FIBERS MANUFACTURED USING THE SAME

Provided is a method of manufacturing high strength synthetic fibers, and high strength synthetic fibers manufactured using the same. More particularly, the method involves a localized heating process by raising the temperature of a molten spinning fiber to a temperature higher than that of a pack body during a short period of time with no degradation through a heating zone located in the immediate vicinity of capillary in the spinning nozzle, so as to effectively control the molecular entanglement structure in the molten polymer without reducing the molecular weight and thus to enhance the drawability of the as-spun fibers, thereby improving the mechanical properties of the as-spun fibers, such as strength, elongation, etc., using the existing processes of melt spinning and drawing and thus enabling a mass production of a high-performance fiber at low cost. 1. A method of manufacturing high strength synthetic fiber , comprising:melt-spinning a thermoplastic polymer through a spinning nozzle containing at least one capillary to form molten fiber;{'b': 40', '80', '12', '52, 'passing the molten fiber through a heating zone or located in the immediate vicinity of the spinning nozzle or to heat the fiber;'}cooling down the heated fiber; anddrawing the cooled fiber and then winding the drawn fiber,{'b': 40', '80', '41', '81', '41', '81', '41', '81, 'i': a', 'a', 'b', 'b, 'wherein the fiber is locally heated by passing through the heating zone or including a high-temperature heater or provided in the form of a hole-type heating channel or or a band-type heating channel or formed on the periphery of the capillary of the spinning nozzle.'}2. The method as claimed in claim 1 , wherein the thermoplastic polymer comprises any one selected from a polyester-based polymer selected from the group consisting of polyethylene terephthalate (PET) claim 1 , polybutylene terephthalate (PBT) claim 1 , polytrimethylene terephthalate (PTT) claim 1 , polycyclohexane dimethanol terephthalate ...

ELASTIC NONWOVEN FABRIC, PROCESS FOR PRODUCING THE SAME, AND TEXTILE PRODUCT COMPRISING THE ELASTIC NONWOVEN FABRIC

(1) An elastic nonwoven fabric and a fiber product using the elastic nonwoven fabric, the elastic nonwoven fabric containing a crystalline resin composition containing low crystalline polypropylene and high crystalline polypropylene, the low crystalline polypropylene satisfying items (a) and (b) below, and a crystallization temperature (Tc) of the crystalline resin composition measured with a differential scanning calorimeter (DSC) being from 20 to 100° C.: 1: An elastic nonwoven fabric comprising a crystalline resin composition that comprises a combination of from 80 to 99% by mass of low crystalline polypropylene and from 20 to 1% by mass of high crystalline polypropylene ,wherein a crystallization temperature (Tc) of the crystalline resin composition measured with a differential scanning calorimeter (DSC) is from 20 to 100° C.:a melting point (Tm-D) of the low crystalline polypropylene is from 0 to 120° C., defined as a peak top of a peak observed on a highest temperature side of a melt endothermic curve obtained by maintaining at −10° C. for 5 minutes and increasing in temperature at 10° C. per minute in a nitrogen atmosphere with a differential scanning calorimeter (DSC); and(b) a stereoregularity index of the low crystalline polypropylene is from 50 to 90% by mol.2: The elastic nonwoven fabric according to claim 1 , wherein the crystalline resin composition comprises a combination of from 85 to 99% by mass of the low crystalline polypropylene and from 15 to 1% by mass of the high crystalline polypropylene.3: The elastic nonwoven fabric according to claim 1 , whereina meso pentad fraction [mmmm] of the low crystalline polypropylene is from 20 to 60% by mol;a quotient [rrrr]/(1 [mmmm]) of a racemic pentad fraction [rrrr] divided by a quantity (1−[mmmm]) in the low crystalline polypropylene is less than or equal to 0.1;a racemic-meso-racemic-meso pentad fraction [rmrm] of the low crystalline polypropylene is greater than 2.5% by mol;{'sup': 2', '2, 'a quotient [ ...

Shaped Nonwoven

A nonwoven substrate. The nonwoven substrate can have a first surface defining a plane of the first surface and a plurality of three-dimensional features extending outwardly from the plane of the first surface. The plurality of three-dimensional features can have a first three-dimensional feature having a first intensive property having a first value and a second three-dimensional feature having the first intensive property having a second value different from the first value. The nonwoven substrate can have an MD Fuzz Value of less than 0.25 mg/cmwhen tested according to the Fuzz Level Test herein. 1. A spunbond nonwoven substrate comprising:a first surface defining a plane of the first surface;a second surface defining a plane of the second surface; and a first three-dimensional feature having a first intensive property having a first value; and', 'a second three-dimensional feature having the first intensive property having a second value different than the first value;, 'a plurality of three-dimensional features extending outwardly from the plane of the first surface or the plane of the second surface, wherein the plurality of three-dimensional features comprise the first three-dimensional feature having a second intensive property having a third value; and', 'the second three-dimensional feature having the second intensive property having a fourth value different than the third value;, 'wherein the first intensive property is basis weight or density;'}wherein the second intensive property is caliper or opacity; and{'sup': '2', 'wherein the nonwoven substrate has an MD Fuzz Value of less than 0.25 mg/cmwhen tested according to the Fuzz Level Test.'}2. The spunbond nonwoven substrate of claim 1 , comprising monocomponent fibers.3. The spunbond nonwoven substrate of claim 1 , comprising bicomponent fibers.4. The spunbond nonwoven substrate of claim 1 , consisting essentially of continuous spunbond fibers that are mono-component or bicomponent fibers.5. The ...

STRETCHABLE STRUCTURE, MULTILAYERED STRETCHABLE SHEET, SPUN YARN, AND FIBER STRUCTURE

An object of the present invention is to provide a stretchable structure that has stretchability together with high stress relaxation properties, and provides fit feeling with less tightening by recovering slowly after stretching. The object is achieved by a stretchable structure having the following characteristics: a tensile permanent set (PS ) of 1% or more and 50% or less, wherein the tensile permanent set (PS) is a value obtained 10 minutes after 150% elongation at a tension rate of 200 mm/minute in accordance with JIS K and a ratio PS/PSof 1.10 or more, wherein the PSis the tensile permanent set obtained 10 minutes after the elongation and the PSis the tensile permanent set obtained 1 minute after the elongation. 1. A stretchable structure having following characteristics:{'sub': 10M', '10M, 'a tensile permanent set (PS) of 1% or more and 50% or less, wherein the tensile permanent set (PS) is a value obtained 10 minutes after 150% elongation at a tension rate of 200 mm/minute in accordance with JIS K7127, and'}{'sub': 1M', '10M', '10M', '1M, 'a ratio PS/PSof 1.10 or more, wherein the PSis the tensile permanent set obtained 10 minutes after the elongation and the PSis the tensile permanent set obtained 1 minute after the elongation.'}2. The stretchable structure according to claim 1 , wherein a surface layer (Z) including a thermoplastic elastomer (C) is laminated on a surface of a core layer (Y) including a resin composition (X) which contains a 4-methyl-1-pentene/α-olefin copolymer (A) satisfying the following requirement (a):Requirement (a): the copolymer (A) contains 50 to 90 mol % of a structural unit (i) derived from 4-methyl-1-pentene and 10 to 50 mol % of a structural unit (ii) derived from an α-olefin (excluding 4-methyl-1-pentene), a total of the structural unit (i) and the structural unit (ii) being 100 mol %.3. The stretchable structure according to claim 2 , wherein the thermoplastic elastomer (C) is at least one member selected from a polyolefin- ...

SPUN-BONDED FABRIC MATERIAL, OBJECT COMPRISING A SPUN-BONDED FABRIC MATERIAL, FILTER MEDIUM, FILTER ELEMENT, AND USE THEREOF

A filter medium () for filtering a fluid, in particular for use in an interior air filter (), comprises a spun-bonded nonwoven formed at least in part of multi-component segmented pie fibers () having at least a first plastic component () and a second plastic component (). The multi-component fibers () are largely non-split and in order to manufacture same, segmented pie filaments are spun in a spun-bonding process (S) to form a spun-bonded nonwoven (). The segmented pie filaments then form the multi-component fibers (), the first plastic component () and/or the second plastic component () being made in particular of a polypropylene. 1123112341. A spun-bonded nonwoven which is formed at least partially from multi-component segmented pie fibers () having at least a first plastic component () and a second plastic component () , wherein the multi-component fibers () have a pie-shaped cross-section , and wherein a portion of multi-component fibers () whose pie segments ( , ) are interconnected at inner segment boundaries () of the multi-component fibers () along their length extension (L) , is at least 50% , and wherein the spun-bonded nonwoven is thermally solidified.2. The spun-bonded nonwoven of claim 1 , wherein{'b': 1', '2', '3', '4', '1, 'a proportion of multi-component fibers () in which the pie segments (, ) are joined together at the inner segment boundaries () of the multi-component fibers () along their length extension (L) is at least 70%.'}3. The spun-bonded nonwoven according to claim 1 , wherein{'b': 1', '7', '2', '3', '7', '1, 'a respective multi-component segmented pie fiber () has a sheath surface (), and the plastic components (, ) adjoin one another on the sheath surfaces () of the multi-component fibers ().'}4. The spun-bonded nonwoven of claim 3 , wherein{'b': 7', '6', '6', '2', '3, 'the sheath surface () has longitudinal grooves (′) along boundary surfaces () between the plastic components (, ).'}5. The spun-bonded nonwoven according to claim 4 , ...

LOW-ELUTION POLYETHYLENE-BASED FIBERS AND NONWOVEN FABRIC USING SAME

The invention is contemplated for providing polyethylene-based fibers in which elution of metal from polyethylene is suppressed as much as possible. The invention relates to polyethylene-based fibers, composed of at least one kind of polyethylene resin, in which a total of content of metal elements such as Na, K, Ca, Fe, Cu, Mg, Mn, Li, Al, Cr, Ni and Zn contained inside the fibers is 40 ppm or less. Moreover, the invention relates to a nonwoven fabric using the polyethylene-based fibers. 1. Polyethylene-based fibers , composed of at least one kind of polyethylene resin , wherein a total of content of metal elements of Na , K , Ca , Fe , Cu , Mg , Mn , Li , Al , Cr , Ni and Zn contained inside the fibers is 40 ppm or less.2. The polyethylene-based fibers according to claim 1 , being sheath-core conjugate fibers composed of polyethylene resins claim 1 , wherein a core component thereof is composed of a polyethylene resin having a density of 0.94 g/cmor more claim 1 , a sheath component thereof is composed of a polyethylene resin having a density of 0.90 g/cmor more claim 1 , and the density of the core component is higher than the density of the sheath component.3. The polyethylene-based fibers according to claim 2 , wherein a difference in a melting point between the core component and the sheath component is 5° C. or more.4. The polyethylene-based fibers according to claim 2 , wherein a difference in a Vicat softening point between the core component and the sheath component is 15° C. or more.5. The polyethylene-based fibers according to claim 1 , being staple fibers having crimps.6. The polyethylene-based fibers according to claim 1 , being fibers that constitute a liquid filtration filter used in a process of manufacturing a semiconductor.7. The polyethylene-based fibers according to claim 1 , used as fibers that constitute a nonwoven fabric being a material for a medical product.8. A nonwoven fabric claim 1 , comprising the polyethylene-based fibers according to ...

ENABLING END OF TRANSACTION DETECTION USING SPECULATIVE LOOK AHEAD

A transaction within a computer program or computer application comprises program instructions performing multiple store operations that appear to run and complete as a single, atomic operation. The program instructions forming a current transaction comprise a transaction begin indicator, a plurality of instructions (e.g., store operations), and a transaction end indicator. A near-end of transaction indicator is triggered based on a speculative look ahead operation such that an interfering transaction requiring a halt operation may be delayed to allow the current transaction to end. A halt operation, also referred to as an abort operation, as used herein refers to an operation responsive to a condition where two transactions have been detected to interfere where at least one transaction must be aborted and the state of the processor is reset to the state at the beginning of the aborted transaction by performing a rollback. 1. A method for enabling end of transaction detection using speculative look ahead , the method comprising:setting an indicator to indicate a current transaction is being processed;monitoring a speculative look ahead operation to detect whether an end-transaction instruction corresponding to the current transaction is likely to occur; andresponsive to detecting the end-transaction instruction, enabling a near-end-transaction processing mode.2. The method of claim 1 , wherein the current transaction comprises a begin-transaction instruction and program instructions immediately following the begin-transaction instruction up to claim 1 , and including claim 1 , the end-transaction instruction claim 1 , wherein the end-transaction instruction corresponds to the begin-transaction instruction.3. The method of claim 1 , wherein the speculative look ahead operation comprises decoding one or more program instructions prior to executing the one or more program instructions.4. The method of claim 1 , further comprising:receiving a notification of an ...

RECYCLED DEINKED SHEET ARTICLES

A wet-laid fibrous product is provided that comprises recycled cellulosic fibers, cellulose ester staple fibers, and residual recycled ink, where the fibrous product has less ink content compared to the ink content for a 100% cellulose comparative fiber wet-laid product, when processed under similar conditions. The wet-laid fibrous product can be formed from a deinked recycled paper pulp slurry, the pulp slurry comprising recycled cellulosic fibers, cellulose ester staple fibers, and ink. A deinking process for the slurry is also provided. 1. A wet-laid fibrous product comprising recycled cellulosic fibers , cellulose ester staple fibers , and residual recycled ink , wherein the fibrous product has less residual ink content compared to the residual ink content for a 100% Cellulose Comparative composition , when processed under similar conditions.2. The wet-laid fibrous product according to claim 1 , wherein the product comprises recycled cellulosic fibers in an amount of 50 wt % or more claim 1 , based on the total dry weight of fibers in the product.3. The wet-laid fibrous product according to claim 1 , wherein the cellulose ester staple fiber has an average DPF of less than 3.0 and an average cut length of less than 6 mm claim 1 , and wherein the cellulose ester staple fiber is crimped and has an average of 5 CPI or more.4. The wet-laid fibrous product according to claim 1 , wherein the cellulose ester staple fiber has a multi-lobal cross-sectional shape.5. The wet-laid fibrous product according to claim 1 , wherein the cellulose ester staple fibers are present in an amount in the range from about 1 to 25 wt % claim 1 , based on the dry weight of the total fibers.6. The wet-laid fibrous product according to claim 1 , wherein the recycled cellulosic fibers and cellulose ester staple fibers are co-refined.7. The wet-laid fibrous product according to claim 1 , wherein the wet laid product has at least 2% higher brightness compared to a 100% Cellulose Comparative ...

ENHANCEMENT OF REINFORCING FIBERS, THEIR APPLICATIONS, AND METHODS OF MAKING SAME

The invention relates to composite reinforcing fibers infused or compounded with pulp fibers and/or nano-fibers. The composite reinforcing fibers are composed of polymer, e.g., polymer resin. The pulp fibers and/or nano-fibers impart improved tensile strength to the composite reinforcing fibers, as well as a resulting product formed by the fibers. The composite reinforcing fibers may be used in a variety of cementitious applications, wherein traditional reinforcing fibers are typically used. 1. A composite reinforcing fiber , comprising:a synthetic polymer resin; anda fiber component selected from the group consisting of pulp fiber, nano-fiber, and mixtures or blends thereof.2. The composite reinforcing fiber of claim 1 , wherein the fiber component is composed of a material selected from the group consisting of carbon claim 1 , mica claim 1 , aramid claim 1 , polyacrylonitrile claim 1 , carbon nano-fiber claim 1 , carbon nano-tube claim 1 , graphene nano-ribbon and mixtures thereof.3. The composite reinforcing fiber of claim 1 , wherein the fiber component has a higher tensile strength claim 1 , as compared to a reinforcing fiber absent of said fiber component.4. The composite reinforcing fiber of claim 1 , wherein the pulp fiber comprises aramid.5. The composite reinforcing fiber of claim 1 , wherein the fiber component has a length from about 0.5 to about 1.0 mm.6. The composite reinforcing fiber of claim 1 , wherein the synthetic polymer resin is selected from the group consisting of polyethylene claim 1 , polypropylene claim 1 , and mixtures or blends thereof.7. A method of preparing a composite reinforcing fiber claim 1 , comprising:obtaining a synthetic polymer resin;compounding the synthetic polymer resin with a fiber component selected from the group consisting of pulp fiber, nano-fiber and mixtures thereof;forming a resin/fiber blend;melting the resin/fiber blend; andextruding the resin/fiber blend to form the composite reinforcing fiber.8. The method of ...

BI-COMPONENT MICROFIBERS WITH HYDROPHILIC POLYMERS ON THE SURFACE WITH ENHANCED DISPERSION IN ALKALINE ENVIRONMENT FOR FIBER CEMENT ROOFING APPLICATION

The present invention provides bi-component core-shell polymeric microfibers for reinforcing concrete comprising as a first component (shell) ethylene-vinyl alcohol (EVOH) polymer and at least one plasticizer, preferably, polyethylene glycol, and as a second component (core) a polymer chosen from a polyamide, a polyester, such as polyethylene terephthalate, and a polymer blend of a polyolefin and an anhydride grafted polyolefin and having an aspect ratio of length to diameter (L/D) or equivalent diameter of from 300 to 1000. The bi-component polymeric microfibers comprise from 5 to 45 wt. % of the first component, are easily processed, and provide fiber cements having improved mechanical properties at relatively low microfiber loadings. 1. A composition comprising bi-component polymeric microfibers for reinforcing concrete having as an outer or first component or shell ethylene-vinyl alcohol (EVOH) polymer having from 30 mol % to 50 mol % of ethylene , and at least one plasticizer , and as a second component or core a polymer chosen from a polyamide , a polyester , and a polymer blend of , on one hand , a polyolefin , and , on the other hand , an anhydride grafted polyolefin , the bi-component polymeric microfibers having an aspect ratio of length to diameter (L/D) or equivalent diameter of from 300 to 1000.2. The composition of bi-component polymeric microfibers as claimed in claim 1 , wherein the at least one plasticizer is a polyalkylene glycol claim 1 , a methoxypolyalkylene glycol claim 1 , or their admixture claim 1 , and claim 1 , wherein the microfibers have an equivalent diameter of <0.3 mm or less than 30 microns per ASTM D7580/D7580M (2015).3. The composition of bi-component polymeric microfibers as claimed in claim 1 , wherein in the first component the total amount of the plasticizer ranges from 1 to 10 wt. % claim 1 , based on the total weight of the first component of the bi-component polymeric microfibers.4. The composition of bi-component polymeric ...

DYEABLE POLYOLEFIN FIBER AND FIBROUS STRUCTURE COMPRISING SAME

A dyeable polyolefin fiber includes a sea-island structure in which a polyolefin (A) is the sea component and a copolyester (B) obtained by copolymerizing cyclohexanedicarboxylic acid is the island component, the polyolefin fiber characterized in that the dispersion diameter of the island component in a lateral cross section of the fiber is 30 to 1000 nm. The dyeable polyolefin fiber is bright, deep coloring is imparted to the lightweight polyolefin fiber, oxidative decomposition during tumbler drying and yellowing during long-term storage are minimized, and the polyolefin fiber can be suitably used as a fibrous structure. 114.-. (canceled)15. A dyeable polyolefin fiber comprising a polymer alloy fiber having an islands-in-the-sea structure comprising a polyolefin (A) as a sea component and a copolymerized polyester (B) with cyclohexanedicarboxylic acid copolymerized as an island component , wherein a dispersion diameter of the island component in a lateral fiber cross section of the fiber is 30 to 1000 nm.16. The dyeable polyolefin fiber according to claim 15 , wherein cyclohexanedicarboxylic acid is copolymerized at a ratio of 10 to 100 mol % relative to all dicarboxylic acid components in the copolymerized polyester (B).17. The dyeable polyolefin fiber according to claim 15 , further comprising a compatibilizer (C).18. The dyeable polyolefin fiber according to claim 17 , wherein the compatibilizer (C) is one or more compounds selected from the group consisting of a polyolefin-based resin claim 17 , an acrylic resin claim 17 , a styrene-based resin claim 17 , and a conjugated diene-based resin each containing at least one functional group selected from the group consisting of an acid anhydride group claim 17 , a carboxyl group claim 17 , a hydroxyl group claim 17 , an epoxy group claim 17 , an amino group claim 17 , and an imino group.19. The dyeable polyolefin fiber according to claim 17 , wherein the compatibilizer (C) is a styrene-ethylene-butylene-styrene ...

SEMIPERMEABLE MEMBRANE SUPPORT

A semipermeable membrane support containing polyolefin-based fibers, which can withstand repeated washing and backwashing, makes it easy for a semipermeable membrane component to permeate thereinto and difficult for the component to strike therethrough, and is excellent in adhesion to the semipermeable membrane and adhesion between a non-coating surface thereof and a resin frame. The semipermeable membrane support which is used by forming the semipermeable membrane thereon is a wet-laid nonwoven fabric containing core-sheath type conjugate fibers composed of polypropylene as a core component and polyethylene as a sheath component and has a burst strength of 300 to 1,000 kPa, or the Bekk smoothness and 75° mirror surface glossiness of the coating surface on which the semipermeable membrane is to be formed of the semipermeable membrane support being more than the Bekk smoothness and 75° mirror surface glossiness of a non-coating surface on the opposite side. 1. A semipermeable membrane support used by forming a semipermeable membrane thereon , which is a wet-laid nonwoven fabric containing core-sheath type conjugate fibers composed of polypropylene as a core component and polyethylene as a sheath component and has a burst strength of 300 to 1 ,000 kPa.2. A semipermeable membrane support used by forming a semipermeable membrane thereon , which is a wet-laid nonwoven fabric containing core-sheath type conjugate fibers composed of polypropylene as a core component and polyethylene as a sheath component , wherein the Bekk smoothness and 75° mirror surface glossiness of the coating surface on which a semipermeable member is to be formed of the semipermeable membrane support are more than the Bekk smoothness and 75° mirror surface glossiness of a non-coating surface on the opposite side.3. The semipermeable membrane support according to claim 2 , wherein the Bekk smoothness of the coating surface on which the semipermeable membrane is to be formed of the semipermeable ...

MULTICOMPONENT FILAMENTS AND ARTICLES THEREOF

Aspects of the present disclosure relate to a multicomponent filament and articles thereof. The multicomponent filament comprises at least a first component and a second component. The first component includes a thermoplastic polymer. The second component includes a hydrophilic thermoplastic polymer comprising 65% (w/w) to 90% (w/w) (inclusive) hydrophilic segments. The first component is capable of forming a continuous filament with the second component. 1. A multicomponent filament , comprising:a first component comprising a hydrophobic thermoplastic polymer; anda second component comprising a hydrophilic thermoplastic polymer comprising 65% (w/w) to 90% (w/w), inclusive, hydrophilic segments;wherein the first component is capable of forming a continuous filament with the second component.2. The multicomponent filament of claim 1 , wherein the thermoplastic polymer comprises a thermoplastic olefin having a melt flow index from 10 g/10 min to 100 g/10 min at 190° C. (inclusive).3. The multicomponent filament of claim 2 , wherein the hydrophilic segments comprise a polyalkylene oxide.4. The multicomponent filament of claim 3 , wherein the hydrophilic segments are selected from the group consisting of polyethylene glycol claim 3 , polypropylene glycol claim 3 , polybutylene oxide claim 3 , random poly(C2-C4)alkylene oxide claim 3 , polyester claim 3 , amine-terminated polyester claim 3 , amine-terminated polyamide claim 3 , polyester-amide claim 3 , polycarbonate claim 3 , and combinations thereof.5. The multicomponent filament of claim 2 , wherein the first component is a core and second component is a sheath in a core/sheath multicomponent filament.6. A first yarn comprising the multicomponent filament of .7. An article comprising the first yarn of claim 6 , wherein the article is selected from a group consisting of a knitted article claim 6 , a woven article claim 6 , nonwoven article claim 6 , and combinations thereof.8. The article of claim 7 , further ...

Bicomponent Polymeric Fibers

A bicomponent fiber comprising a sheath, where the sheath includes a propylene-based elastomer, said propylene-based elastomer including propylene-derived units and from about 3.0 to about 15 wt % alpha-olefin-derived units other than propylene-derived units, based upon the entire weight of the copolymer, said propylene-based elastomer having a triad tacticity of greater than 75%, and a heat of fusion, as determined by DSC, of less than 75 J/g; and a core, where the melt temperature of the core, as determined by DSC, is at least 5% greater than the melt temperature of the sheath. 1. A bicomponent fiber comprising:a sheath, where the sheath includes a propylene-based elastomer, said propylene-based elastomer including propylene-derived units and from about 3.0 to about 15 wt % alpha-olefin-derived units other than propylene-derived units, based upon the entire weight of the copolymer, said propylene-based elastomer having a triad tacticity of greater than 75%, and a heat of fusion, as determined by DSC, of less than 75 J/g; anda core, where the melt temperature of the core, as determined by DSC, is at least 5% greater than the melt temperature of the sheath.2. The bicomponent fiber of claim 1 , where the melt temperature of the core claim 1 , as determined by DSC claim 1 , that is greater than 125° C. and the flexural modulus of the core claim 1 , as determined by ASTM D-790 claim 1 , is greater than 1 claim 1 ,000 MPa.3. The bicomponent fiber of claim 1 , where the melt temperature of the core is at least 20% greater than the melt temperature of the sheath.4. The bicomponent fiber of claim 1 , where the melt temperature of the core is at least 15° C. greater than the melt temperature of the sheath.5. The bicomponent fiber of claim 1 , where the melt temperature of the core is at least 30° C. greater than the melt temperature of the sheath.6. The bicomponent fiber of claim 1 , where the flexural modulus of the core is at least 1 claim 1 ,000 MPa greater than the ...

Crimped fibers and nonwoven fabric

The present invention relates to a crimped fiber including one component thereof containing a thermoplastic resin (A) and another component thereof containing a thermoplastic resin (B) and a thermoplastic resin (C), wherein a half-crystallization time at 25° C. of the thermoplastic resin (A) is shorter than a half-crystallization time at 25° C. of the thermoplastic resin (B), and a half-crystallization time at 25° C. of the thermoplastic resin (C) is longer than the half-crystallization time at 25° C. of the thermoplastic resin (B).

Fine Hollow Fibers Having a High Void Fraction

A hollow fiber that extending along at least a portion of the fiber along a longitudinal axis thereof and is defined by an interior wall is provided. Through selective control over the manner in which it is formed, the present inventors have discovered that the hollow fiber can exhibit a unique combination of a high void fraction and small fiber size that makes it particularly suitable for use in certain applications, such as in nonwoven webs for absorbent articles. 19-. (canceled)10. A spinneret for forming a hollow fiber , the spinneret containing a spin plate that defines a plurality of capillaries having one or more spaced apart slots , wherein at least a portion of the slots have a width and length such that the ratio of the length to the width is greater than 5 , the width of the slots being from 0.08 to 0.2 millimeters , wherein the slots further have an outer diameter that is defined as the distance between outer edges of the slots , the outer diameter being greater than 0.6 millimeters , wherein the slots occupy a total open area of from 0.10 to 0.40 square millimeters.11. The spinneret of claim 10 , wherein the length of the slots is from 0.4 to 2.0 millimeters.12. The spinneret of claim 10 , wherein the slots have an inner diameter that is from 0.2 to 2.0 millimeters.13. The spinneret of claim 10 , wherein the slots have a C-shape14. The spinneret of claim 10 , wherein the capillaries contain from 2 to 10 slots.15. A method for forming a hollow fiber claim 10 , the method comprising extruding a thermoplastic composition through the capillaries of the spinneret of . Fibrous materials are used in a wide variety of different components to help control the flow of fluids. In absorbent articles, for instance, fibrous materials (e.g., nonwoven webs) can be used to rapidly absorb bodily fluids (e.g., urine) and allow them to flow into an absorbent layer without permitting or facilitating re-transmission of the fluids to the wearer. Unfortunately, fibrous ...

MICRO/NANO-LAYERED FILAMENTS

The present invention is a process for converting a multilayer filament to a plurality of nano-ribbons. The process includes co-extruding a first layer and a second layer to form the multilayer filament, and separating the multilayer filaments to form a plurality of nano-ribbons having substantially flat cross-sections.

NOVEL NANO-RIBBONS FROM MULTILAYER COEXTRUDED FILM

The present invention is a process for converting a multilayer film to a plurality of nano-ribbons. The process includes co-extruding a first film and a second film to form the multilayer film, slitting the multilayer film to form a plurality of multilayer ribbons, and separating the multilayer ribbons to form a plurality of nano-ribbons having substantially flat cross-sections.

Fibre

A fibre comprising a core, a component, for example a liquid crystal, which is susceptible to a change in properties or structure in response to application of the external stimulus and an outer sheath is provided. The component is electrically conductive or adapted to undergo a structural change in response to the applied stimulus. 1. A fibre comprising a core which is electrically conductive and adapted to selectively receive electric current to heat the core such that the fibre provides a thermochromic effect or undergoes a structural change , the core being sheathed in an outer polymeric layer the fibre further comprising a responsive component interposed between the core and the outer polymeric layer or within the outer polymeric layer which responsive component is susceptible to a change in properties or structure in response to application of the electric current.2. (canceled)3. A fibre according to wherein the responsive component comprises a colour component within the outer polymeric layer and/or disposed in a region between the core and the outer polymeric layer4. A fibre according to wherein the colour component comprises a liquid crystal.5. A fibre according to wherein the colour component comprises a liquid crystal and colour is initiated by application of electric power to the core which thereby heats and provides a selectively applied stimulus to prompt colour-change.6. A fibre according to wherein the liquid crystal comprises an unencapsulated liquid disposed between the core and the outer layer.7. A fibre according to wherein the liquid crystal is encapsulated and dispersed in the outer polymeric layer.8. (canceled)9. A fibre according to wherein the electrically conductive core comprises a metal selected from a steel claim 1 , aluminium or copper wire.10. A fibre according to wherein the electrically conductive core has a pre-selected colour whereby the colour contributes to the visual appearance of the colour-change fibre.11. A fibre according to ...

POLYPROPYLENE COMPOSITION WITH IMPROVED TENSILE PROPERTIES, FIBERS AND NONWOVEN STRUCTURES

A polypropylene composition is described having an MFI measured according to ISO 1133 for polypropylene of 1 to 3 g/10 min and a xylene soluble content in the range from 1 wt % to 4.5 wt % or 1.5 wt % to 4.5 wt %, which can be used to produce spun and drawn fibres having an average MFI measured according to ISO 1133 for polypropylene of 1 to 5 g/min, a xylene soluble content in the range from 1 wt % to 4.5 wt % or 1.5 wt % to 4.5 wt %, the spun and drawn fibres having an average elongation of at least 65% as measured by ISO 5079 with an adjusted testing speed of 80 mm/min, and/or an average tenacity/tensile strength of at least 56 c N/tex as measured by ISO 5079 with an adjusted testing speed of 80 mm/min. 1. Spun and drawn fibres comprising a polypropylene composition of a polypropylene homopolymer , the spun and drawn fibres having an average MFI measured according to ISO 1133 for polypropylene of 1 to 5 g/10 min and a xylene soluble content in the range from 1 wt % to 4.5 wt % or 1.5 wt % to 4.5 wt % , the spun and drawn fibres having:an average elongation of at least 65% as measured by ISO 5079 with an adjusted testing speed of 80 mm/min, and/oran average tenacity/tensile strength of at least 56 cN/tex as measured by ISO 5079 with an adjusted testing speed of 80 mm/min.2. The spun and drawn fibres of claim 1 , wherein the polypropylene composition consists of one or more polypropylene homopolymers.3. The spun and drawn fibres of claim 1 , wherein the fibres are staple fibres or short cut fibres.4. The spun and drawn fibres of claim 1 , wherein the spun and drawn fibres have an average MFI of 2 to 4 g/10 min.5. The spun and drawn fibres of claim 1 , wherein the fibres have a multilobal cross-section.6. The spun and drawn fibres of claim 5 , wherein the fibres have a trilobal claim 5 , cross-section.7. The spun and drawn fibres of claim 1 , wherein the fibres are multicomponent fibres.8. The spun and drawn fibres of claim 7 , wherein the fibres are bicomponent ...

HIGH PERFORMANCE FIBRES HYBRID SHEET

The present invention relates to hybrid sheet comprising: i) high-performance polyethylene (HPPE) fibers; ii) a polymeric resin, wherein the polymeric resin is selected from a group consisting of a homopolymer of ethylene, a homopolymer of propylene, a copolymer of ethylene, and a copolymer of propylene and wherein said polymeric resin has a density as measured according to ISO1183-2004 in the range from 860 to 970 kg/m, a peak melting temperature in the range from 40 to 140° C. and a heat of fusion of at least 5 J/g; iii) non-polymeric fibers; and iv) optionally, a matrix material. Furthermore, the present invention relates to a process to manufacture the hybrid sheet and to the use of the hybrid sheet in various fields, such as in automotive field, in aerospace field, in sports equipment, in marine field, in military field; and in wind and renewable energy field. 1. A hybrid sheet comprising:i) high-performance polyethylene (HPPE) fibers;{'sup': '3', 'ii) a polymeric resin, wherein the polymeric resin is selected from a group consisting of a homopolymer of ethylene, a homopolymer of propylene, a copolymer of ethylene, and a copolymer of propylene, wherein the polymeric resin has a density as measured according to ISO1183-2004 in the range from 860 to 970 kg/m, a melting temperature in the range from 40 to 140° C. and a heat of fusion of at least 5 J/g; and'}iii) non-polymeric fibers.2. The hybrid sheet according to claim 1 , wherein the non-polymeric fibers are selected from a group consisting of carbon fibers claim 1 , glass fibers claim 1 , wollastonite fibers claim 1 , basalt fibers and/or mixtures thereof.3. The hybrid sheet according to claim 1 , wherein the HPPE fibers are continuous filaments or staple fibers.4. The hybrid sheet according to claim 1 , wherein the HPPE fibers are prepared by a melt spinning process claim 1 , a gel spinning process or solid state powder compaction process.5. The hybrid sheet according to claim 1 , wherein the polymeric resin ...

Splittable chargeable fiber, split multicomponent fiber, a split multicomponent fiber with a durable charge, nonwoven fabric, filter, and yarn containing, and manufacturing processes therefor

A process for forming a splittable fiber having the steps of providing a multicomponent fiber; or a multicomponent staple fiber, providing a finish material, and at least partially coating the multicomponent fiber with the finish material to form a splittable fiber. The multicomponent fiber; or a multicomponent staple fiber, contains a first thermoplastic segment comprising polymer component A and a second thermoplastic segment comprising polymer component B. The finish material has an evaporation point of less than about 160° C. A process for forming a nonwoven fabric, a split multicomponent fiber, a split multicomponent fiber with a durable charge, a nonwoven fabric, and a filter and/or a spun yarn formed by the fibers herein is also described.

Multi-Functional Fabric

A fabric that includes porous fibers is provided. The porous fibers are formed from a thermoplastic composition containing a continuous phase that includes a matrix polymer. A microinclusion additive and nanoinclusion additive may also be dispersed within the continuous phase in the form of discrete domains, wherein a porous network is defined in the composition that includes a plurality of nanopores having an average cross-sectional dimension of about 800 nanometers or less.

ULTRA-FINE FIBROUS CARBON FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, ULTRA-FINE FIBROUS CARBON AGGREGATE, COMPOSITE, AND ELECTRODE ACTIVE MATERIAL LAYER

The purpose of the present invention is to provide an electrode active material layer exhibiting excellent mechanical strength. This electrode material for a non-aqueous electrolyte secondary battery includes at least an electrode active material, a carbon-based conductive auxiliary agent, and a binder. The carbon-based conductive auxiliary agent has a linear structure, and includes ultra-fine fibrous carbon having an average fibre diameter of more than 200 nm but not more than 900 nm. The electrode material configures an electrode active material layer in which the maximum tensile strength (σ) in a planar direction and the tensile strength (σ) in an in-plane direction orthogonal to the maximum tensile strength (σ) satisfy relational expression (a), namely σ/σ≤1.6. 1. Ultrafine fibrous carbonswherein the ultrafine fibrous carbons having a linear structure and an average fiber diameter of more than 200 nm to 900 nm,wherein at least a part of the surface of said ultrafine fibrous carbons is modified with a surfactant, and/orwherein at least a part of the surface of said ultrafine fibrous carbons is oxidatively treated.2. The ultrafine fibrous carbons according to claim 1 , which are disintegrated.3. The ultrafine fibrous carbons according to claim 2 , which are disintegrated by a dry pulverizer and/or a wet pulverizer.4. The ultrafine fibrous carbons according to claim 1 , wherein the aspect ratio of said ultrafine fibrous carbons is from 1 to 1 claim 1 ,000.5. A production method of the ultrafine fibrous carbons according to claim 1 , comprising the steps of:modifying with a surfactant at least a part of the surface of said ultrafine fibrous carbons, and/or oxidatively treating at least a part of the surface of said ultrafine fibrous carbons,wherein the ultrafine fibrous carbons having a linear structure and an average fiber diameter of more than 200 nm to 900 nm.6. The production method of the ultrafine fibrous carbons according to claim 5 , wherein the ultrafine ...

Elastic nonwovens with improved haptics and mechanical properties

The present invention is an extensible nonwoven comprising a polyolefin elastomer fiber wherein the surface of the fiber further comprises an inorganic filler or PDMS or combinations thereof, wherein the inorganic filler, if present, has D-90 particle size of 5 microns or less.

SELF-CRIMPED MULTI-COMPONENT FIBERS AND METHODS OF MAKING THE SAME

Self-crimped multi-component fibers (SMF) are provided that include (i) a first component comprising a first polymeric material, in which the first polymeric material comprises a first melt flow rate (MFR) that is less than 50 g/10 min; and (ii) a second component comprising a second polymeric material, in which the second component is different than the first component. The SMF includes one or more three-dimensional crimped portions. Also provided are nonwoven fabrics comprising a plurality of SMFs. Methods of manufacturing SMFs and nonwoven fabrics including SMFs are also provided. 1. A self-crimped multi-component fiber (SMF) , comprising:(i) a first component comprising a first polymeric material, wherein the first polymeric material comprises a first melt flow rate (MFR) less than 50 g/10 min; and(ii) a second component comprising a second polymeric material, wherein the second component is different than the first component; whereinthe SMF comprises one or more three-dimensional crimped portions; and wherein optionally the second polymeric material comprises a second MFR less than 50 g/10 min.2. The SMF fiber of claim 1 , wherein the SMF comprises a staple fiber claim 1 , a discontinuous meltblown fiber claim 1 , or a continuous fiber.3. The SMF of claim 2 , wherein the SMF comprises a bicomponent spunbond fiber.4. The SMF of claim 1 , wherein the SMF comprises an average free crimp percentage from about 30% to about 300.5. The SMF of claim 1 , wherein the one or more three-dimensional crimped portions include at least one discrete zig-zag configured crimped portion claim 1 , at least one discrete helically configured crimped portion claim 1 , or a combination thereof6. The SMF of claim 1 , wherein the SMF comprises a sheath/core configuration claim 1 , a side-by-side configuration claim 1 , a pie configuration claim 1 , an islands-in-the-sea configuration claim 1 , a multi-lobed configuration claim 1 , or any combinations thereof.7. The SMF of claim 6 , ...

HEAT-BONDABLE CONJUGATE FIBER WITH EXCELLENT SOFTNESS AND NONWOVEN FABRIC USING THE SAME

The present invention are a heat-bondable conjugate fiber ensuring that the crimp configuration stability can be maintained even in the state of leaving elongation of the fiber and bulkiness and softness are imparted to the nonwoven fabric, and a nonwoven fabric using the same. A heat-bondable conjugate fiber comprises a first component containing a polyester-based resin and a second component containing a polyolefin-based resin having a melting point lower than the melting point of said polyester-based resin, wherein said second component is a heat-bondable conjugate fiber accounting for a specific range of the outer fiber circumference and having a side-by-side or eccentric sheath-core structure and the fiber has a specific elongation, a specific range of a three-dimensional actualized crimp and a specific range of a crimp modulus. 1. A heat-bondable conjugate fiber comprising a first component containing a polyester-based resin and a second component containing a polyolefin-based resin having a melting point lower by 15° C. or more than the melting point of said polyester-based resin , wherein said second component is a heat-bondable conjugate fiber accounting for 30% or more of the outer fiber circumference in the fiber cross-section intersecting the length direction of the fiber and having a side-by-side or eccentric sheath-core structure and the fiber has an elongation of 50 to 120% , a three-dimensional actualized crimp with 10 to 20 crests/2.54 cm and a crimp modulus of 85 to 100%.2. The heat-bondable conjugate fiber as claimed in claim 1 , wherein said polyester-based resin is at least one member selected from the group consisting of polyethylene terephthalate claim 1 , polypropylene terephthalate claim 1 , polybutylene terephthalate claim 1 , polylactic acid claim 1 , polybutylene succinate claim 1 , and polybutylene adipate terephthalate.3. The heat-bondable conjugate fiber as claimed in claim 1 , wherein said polyolefin-based resin is at least one member ...

Shaped Nonwoven

A nonwoven fabric is provided. The nonwoven fabric can include a first surface and a second surface and a visually discernible pattern of three-dimensional features on one of the first or second surface. Each of the three-dimensional features can define a microzone comprising a first region and a second region. The first and second regions can have a difference in values for an intensive property, wherein at least one of the surfaces has a TS7 value of less than about 15 dB Vrms, and wherein the first surface has a TS7 value that is higher than the second surface TS7 value. 1. A spunbond nonwoven fabric comprising:{'sup': '2', 'claim-text': wherein the intensive property is basis weight; and', 'wherein the difference in values for the basis weight for the first region and the second region is from about 1.2× to about 10× different., 'a first surface, a second surface, and a visually discernible zone on at least one of the first surface and second surface, the visually discernible zone having a pattern of three-dimensional features, each of the three-dimensional features defining a microzone comprising a first region and a second region, the first and second regions having a difference in values for an intensive property, wherein at least one of the surfaces has a TS7 value of less than about 15 dB Vrms;'}2. The spunbond nonwoven fabric of claim 1 , wherein the first surface has a TS7 value of about 2 dB Vrms to about 12 dB Vrms claim 1 , and wherein the second surface has a TS7 value different than the TS7 value of the first surface.3. The spunbond nonwoven fabric of claim 1 , wherein the second surface has a TS7 value that is lower than the first surface TS7 value.4. The spunbond nonwoven fabric of claim 1 , wherein the second surface has a TS7 value that is different than the first surface TS7 value.5. The spunbond nonwoven fabric of claim 1 , wherein the second surface has a TS7 value of about 3 dB Vrms to about 8 dB Vrms claim 1 , and wherein the first surface ...

Bicomponent fibers, products formed therefrom and methods of making the same

Melt blown bicomponent fibers comprising a first thermoplastic polymeric material and a second thermoplastic polymeric material comprising homo- or co-polymer(s) of poly(m-xylene adipamide) or polyphenylene sulfide. The first thermoplastic polymeric material may be one or more homo- or co-polymer(s) of nylon 6 (polycaprolactam), nylon 6,6 (poly(hexamethylene adipamide)), polypropylene, and/or polybutylene terephthalate. A plurality of bicomponent fibers may thermally bonded to one another at spaced apart points of contact to define a porous structure that substantially resists crushing. The nonwoven fabric webs and rovings and self-supporting, three-dimensional porous elements may be formed from the plurality of bicomponent fibers.

POLYER/FILLER/METAL COMPOSITE FIBER AND PREPARATION METHOD THEREOF

The present invention relates to a polymer/filler/metal composite fiber, including a polymer fiber comprising a metal short fiber and a filler; the metal short fiber is distributed as a dispersed phase within the polymer fiber and distributed in parallel to the axis of the polymer fiber; the filler is dispersed within the polymer fiber and distributed between the metal short fibers; the filler does not melt at the processing temperature of the polymer; said metal is a low melting point metal and selected from at least one of single component metals and metal alloys, and has a melting point which ranges from 20 to 480° C., and, at the same time, which is lower than the processing temperature of the polymer; the metal short fiber and the polymer fiber have a volume ratio of from 0.01:100 to 20:100; the filler and the polymer have a weight ratio of from 0.1:100 to 30:100. The composite fiber of the present invention has reduced volume resistivity and decreased probability of broken fibers, and has a smooth surface. The present invention is simple to produce, has a lower cost, and would be easy to industrially produce in mass. 1. A polymer/filler/metal composite fiber , including a polymer fiber comprising a metal short fiber and a filler , and having the microstructure that the metal short fiber is distributed as a dispersed phase within the polymer fiber , and the metal short fiber as the dispersed phase is distributed in parallel to the axis of the polymer fiber , the filler is dispersed within the polymer fiber and is distributed between the metal short fibers , wherein the polymer is a thermoplastic resin , the filler does not melt at the processing temperature of the polymer , the metal is a low melting point metal and selected from at least one of single component metals and metal alloys , and has a melting point which ranges from 20 to 480° C. and at the same time which is lower than the processing temperature of the polymer.2. The polymer/filler/metal composite ...

BI-COMPONENT STAPLE OR SHORT-CUT TRILOBAL FIBRES AND THEIR USES

A bi-component staple or short-cut fibre includes a core and a sheath, the sheath and the core have different melting points, with the sheath melting point being lower than the core melting point, the bi-component fibre having an outer trilobal shaped cross-section. The core of the bi-component fibre can have a cross-section whereby the outer trilobal shaped cross-section is created by a conformal layer of sheath material applied to the core. 117.-. (canceled)18. A bi-component staple or short-cut fibre comprising a core and a sheath , the sheath and the core have different melting points , with the sheath melting point being lower than the core melting point , the bi-component fibre having an outer trilobal shaped cross-section.19. The bi-component staple or short-cut fibre according to claim 18 , wherein the sheath is a conformal layer on a core.20. The bi-component staple or short-cut fibre of wherein the fibre has a triangular symmetry claim 19 , with each lobe of the sheath material having an axis radiating out from the core claim 19 , and three axes of the trilobal shape being spaced angularly from each other claim 19 , and the core has a triangular symmetry.21. The bi-component staple or short-cut fibre of wherein the core of the bi-component fibre has a delta or trilobal shaped cross-section conformal with the outer trilobal shaped cross-section.22. The bi-component staple or short-cut fibre of wherein a polymer used for the sheath is a co-polyester claim 18 , a polyolefin claim 18 , or an olefin copolymer and a polymer used for the core is a polyolefin claim 18 , an olefin copolymer or a polyester or a co-polyester.23. The bi-component staple or short-cut fibre of wherein the sheath has between 10-90% by weight of the fibre and the core has between 90-10% by weight of the fibre.24. The bi-component staple or short-cut fibre of claim 18 , wherein the sheath is made from polyethylene and has between 30-70% by weight of the fibre and wherein the core is made ...

BALL-SHAPED PHOTOHEATING FIBER COMPOSITE AND METHOD FOR PRODUCING SAME

A ball-shaped light heat generating fiber aggregate and a method for producing the same include a light heat generating material that is sprayed and applied to any one filament or a mixture of two or more filaments selected from the group consisting of a polyamide-based filament, a polyester-based filament, and a polypropylene-based filament, opening and mixing the same to separate the filaments, and producing a ball-shaped fiber aggregate. 1. A ball-shaped light heat generating fiber aggregate comprising:a light heat generating material sprayed and applied to any one filament or a mixture of two or more filaments selected from the group consisting of a polyamide-based filament, a polyester-based filament, and a polypropylene-based filament, the same opened and mixed to separate the filaments and produce the ball-shaped fiber aggregate,wherein the light heat generating material is any one or a mixture of two or more of ATO, ITO, and Group 4 metal oxides, andthe standard deviation of the average diameter of the fiber aggregate is 1 to 1.5, and the kurtosis thereof is 3 or more.2. The fiber aggregate according to claim 1 , wherein the ball-shaped fiber aggregate has a density of 3.5 g/l to 6 g/l.3. The fiber aggregate according to claim 1 , wherein the ball-shaped fiber aggregate has 600 counts to 1200 counts per 1 g.4. The fiber aggregate according to claim 1 , wherein the ball-shaped fiber aggregate has an average diameter of 3 mm to 20 mm.5. The fiber aggregate according to claim 1 , wherein the filament of the fiber aggregate includes at least 50% by weight of a side-by-side-typed conjugated fiber.6. The fiber aggregate according to claim 5 , wherein the conjugated fiber is a hollow conjugated fiber.7. The fiber aggregate according to claim 1 , wherein the any one filament or the mixture of two or more filaments selected from the group consisting of a polyamide-based filament claim 1 , a polyester-based filament claim 1 , and a polypropylene-based filament has a ...

A method for preparing masterbatch and fiber with composite antibacterial and deodorizing functions

The present invention provides a method for preparing a masterbatch and fibers with composite antibacterial and deodorizing functions including surface modifying a copper powder; functionalizing resin powder; and preparing the composite antibacterial and deodorizing masterbatch. The present invention provides a new antibacterial compounding mechanism to prepare new antibacterial and deodorizing masterbatch and fibers which have permanent antibacterial function, and the mechanical properties thereof can reach the standard of general fibers; fully meets the requirements of various weaving; the cost thereof is comparable to that on antibacterial post-treatment; and the pollution is reduced. The present invention can increase the export volume and additional value of the textiles.

Bi-component fibers with evoh on the surface for concrete reinforcement

The present invention provides bi-component polymeric macrofibers having an ethylene-vinyl alcohol (EVOH) outer component and a core or second component comprising a polymer blend of polypropylene grafted with maleic anhydride and polypropylene or polyethylene. The bi-component polymeric macrofibers provide excellent fiber reinforcement in concrete applications.

Porous Polyolefin Fibers

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

COMPOSITE FIBER FOR INORGANIC BINDER APPLICATIONS

Fibers of diverse materials find widespread use in inorganic binder compositions to improve the properties of the final cured composite materials. When using high amounts of fiber in inorganic binder slurries, problems arise due to the loss of workability because of unevenly distributed fiber content. The novel fibers according to the invention allow the use of large amounts of fiber without loss of workability and are particularly useful to control the rheology of the composite slurry mixtures. 1. A process for making a bicomponent fiber , wherein said fiber comprises a first hydrophobic polymer , optionally selected from polyolefins , and a second hydrophilic polymer , optionally selected from polyvinyl alcohol or polyacrylic acid , comprising the following steps:uniaxially stretching a sheet of said first polymer,oxidizing one side of the sheet of said first polymer,coating the oxidized side of the sheet of said first polymer with said second polymer to form a bicomponent substrate,drying the bicomponent substrate, andcutting the dried bicomponent substrate into fibers of desired dimensions.2. A bicomponent fiber obtained according to the process of claim 1 , wherein the first hydrophobic polymer is polypropylene and the second hydrophilic polymer is polyvinyl alcohol.3. A bicomponent fiber obtained according to the process of claim 1 , wherein the ratio of layer thickness of a first or upper layer of the bicomponent fiber to a second or lower layer of the bicomponent fiber is not greater than three.4. A method of utilizing the bicomponent fiber obtained by the process of comprising mixing the bicomponent fiber as an additive in inorganic binder formulations or compositions.5. The method of wherein the inorganic binder formulations or compositions comprises cement claim 4 , aluminosilicate claim 4 , gypsum or geopolymer-based binders.6. A method of utilizing the bicomponent fiber obtained by the process of comprising controlling the rheology of hydraulic binder ...

ULTRAFINE FIBER PRODUCTION METHOD

A method for producing ultrafine fibers of the present invention includes forming an electric field between an discharging nozzle from which a raw resin is discharged and a charging electrode which is disposed apart from the discharging nozzle, and supplying the raw resin which has been heated and melted into the electric field from the discharging nozzle to spin the raw resin. The raw resin is a resin mixture which contains a resin having a melting point and an additive, and satisfies a relation (I) below: 1. A method for producing ultrafine fibers , the method comprising:forming an electric field between a discharging nozzle from which a raw resin is discharged and a charging electrode which is disposed apart from the discharging nozzle, and supplying the raw resin which has been heated and melted into the electric field from the discharging nozzle to spin the raw resin, {'br': None, 'i': 'A/B≥', 'sup': '2', '1.0×10\u2003\u2003(I)'}, 'wherein the raw resin is a resin mixture which contains a resin having a melting point and an additive, and satisfies a relation (I) belowwherein A represents an absolute value (Ω) of electrical impedance of the raw resin at 50° C., andB represents an absolute value (Ω) of electrical impedance of the raw resin at a temperature 50° C. higher than a melting point of the raw resin.2. The method for producing ultrafine fibers according to claim 1 , wherein the discharging nozzle is earthed claim 1 , and the charging electrode is connected to a high-voltage generator.3. The method for producing ultrafine fibers according to claim 1 , wherein a collecting portion which collects fibers of the raw resin is disposed separately from the discharging nozzle and the charging electrode claim 1 , and the collecting portion is electrically connected.4. The method for producing ultrafine fibers according to claim 1 , wherein the method further comprising:preparing the raw resin by heating and melting the resin and the additive, followed by mixing the ...

MULTICOMPONENT LATENT-CRIMPING STAPLE FIBER AND METHOD THEREFOR

A multicomponent latent-crimping staple fiber, or a non-mechanically-crimped staple fiber contains a first component and a second component which each have their own differing lengths and a shrinkage differential therebetween and eccentric cross-sectional centers of mass. The staple fibers herein have a tenacity after crimping of at least 90% as compared to the tenacity prior to crimping. Processes for making such a fiber are also described. 1. A multicomponent latent-crimping staple fiber comprising: i. a first length; and', 'ii. a first cross-sectional center of mass; and, 'A. a first component comprising i. a second length; and', 'ii. a second cross-sectional center of mass,, 'B. a second component comprisingwherein the shrinkage differential between the first length and the second length is at least 0.01%, and wherein the first cross-sectional center of mass and the second cross-sectional center of mass are eccentric, wherein the first component and the second component are extruded and combined to form a multicomponent latent-crimping fiber, wherein the multicomponent latent-crimping fiber is cut to form a multicomponent latent-crimping staple fiber, wherein the multicomponent latent-crimping staple fiber is crimped either before, during, or after cutting, and wherein the multicomponent latent-crimping staple fiber has a tenacity of at least about 90% as compared to the tenacity of the multicomponent latent-crimping fiber prior to crimping.2. The multicomponent latent-crimping staple fiber according to claim 1 , wherein the first component comprises a polymer selected from the group consisting of a polyamide claim 1 , a sulfur-containing polymer claim 1 , an aromatic polyester claim 1 , an aliphatic polyester claim 1 , a polyolefin claim 1 , and a combination thereof.3. The multicomponent latent-crimping staple fiber according to claim 1 , wherein the second component comprises a polymer selected from the group consisting of a polyamide claim 1 , a sulfur- ...

THERMO-REGULATED FIBER AND PREPARATION METHOD THEREOF

The present invention provides a thermo-regulated fiber and a preparation method thereof by using a new polymeric phase-change material and adopting a new fiber preparation method, and the resulting thermo-regulated fiber has good thermo-regulating properties and a good thermal stability. The thermo-regulated fiber has a composite structure, and the cross-sectional structure is an sea-island type or a concentric sheath/core type, characterised in that the polymeric phase-change material is a polyethylene glycol n-alkyl ether (structural formula: H(OCHCH)OCH), where the repeating unit number m of the ethylene glycol is 1 to 100, the number n of carbon atoms in the n-alkyl is 11 to 30. The present invention further relates to a preparation method of a thermo-regulated fiber which includes one of the following processes: (1) A melt composite spinning process; (2) Solution composite spinning process; (3) Electrostatic solution composite spinning process. Further, the present invention is characterised as follows: (1) a new polymeric phase-change material polyethylene glycol n-alkyl ether is used; (2) Component A of the thermo-regulated fiber may form a continuous crystallization region; (3) The thermo-regulated fiber can be prepared in various forms by many preparation methods such as melt composite spinning, solution composite spinning and solution static composite spinning. 1. A thermo-regulated fiber , comprising a polymeric phase-change material as an ingredient A and a fiber-forming polymer as an ingredient B , wherein the mass fraction of the ingredient A in the fiber is 20% to 60% , the mass fraction of the ingredient B in the fiber is 80% to 40% , and the fiber is prepared by a melt composite spinning , solution composite spinning or solution static composite spinning process , the thermo-regulated fiber has a composite structure , the cross-sectional structure is a sea-island type or a concentric sheath/core type , characterized in that the polymeric phase- ...

Homogeneous filled yarn

The invention is concerned with filled multifilament yarn according to the present invention whereby the filler ratio, χ, in the yarn is greater than 0.004 times the IV of the UHMWPE present in the multifilament yarn (IV Y UH ), i.e. χ≥ 0.004 g/dL*IVy H* and whereby the tenacity (TEN, in cN/dtex) of the filled multifilament yarn is such that TEN≥IV Y UH *(1.5-3.25*χ), or whereby the tenacity of a filled monofilament in the yarn is ten≥IV Y UH *(2-4.35* X ). The invention is further concerned with a method to manufacture said multifilament yarn and articles comprising said multifilament yarn.

INFRARED RADIATION TRANSPARENT SUBSTRATES AND SYSTEMS AND METHODS FOR CREATION AND USE THEREOF

Substrates with transparency to infrared body radiation and opacity in the visible light spectrum are provided and systems and methods for creation thereof are provided. The IR radiation transparent substrate is IR radiation transparent and visible light opaque with enough breathability and softness to make it suitable for use in garments for body thermal regulation. Further, the IR radiation transparent substrate is created utilizing nanofiber technology to form specific sized micro pores between the nanofibers. 1. A method for creating an infrared radiation transparent and visible light opaque substrate , the method comprising:selecting an infrared radiation transparent and visible light transparent polymer;creating nanofibers out of the polymer, wherein micro pores are formed between the nanofibers,the micro pores scatter visible light to change the polymer from being visible light transparent to being visible light opaque;the micro pores are large enough to be air permeable, andforming an infrared radiation transparent and visible light opaque fabric from the nanofibers.2. The method of claim 1 , further comprising:creating a garment from the infrared radiation transparent and visible light opaque fabric,wherein the infrared radiation transparent and visible light opaque fabric is non-woven.3. The method of claim 1 , further comprising:creating a garment from the infrared radiation transparent and visible light opaque fabric,wherein the infrared radiation transparent and visible light opaque fabric is woven.4. The method of claim 1 , wherein the polymer is polyethylene or polypropylene.5. The method of claim 1 , wherein creating nanofibers out of the polymer comprises electrospinning the polymer.6. The method of claim 5 , wherein the electrospinning is melt based or solution based.7. The method of claim 1 , wherein the polymer is a hydrocarbon claim 1 , and applying island-in-the-sea extrusion to the polymer to form microfibers; and', 'applying a solvent to the ...

HEMP-BASED CHAR OR OILS AND POLYMERS FORMED AS FIBERS OR FILMS HAVING ENHANCED PROPERTIES

A process of forming a fiber comprised of a plurality of bio-char particles, comprising: combining a portion of a polymer with a hemp derivative, said hemp derivative selected form a hemp carbon made by pyrolyzing a quantity of hemp stalk at between 1100-1500° C. to create a char; adding the char to a milling vessel and milling the char for a period of between 1 to 16 hours, and a full spectrum hemp extract, or combinations thereof, wherein the polymer and hemp derivative are extruded to form a fiber. 1. A method of manufacturing a nonmetallic conductive fiber comprising:carbonizing a portion of hemp in a furnace, said furnace being flushed with nitrogen and then heated to at least 1100° C., wherein the at least 1100° C. temperature is held for at least 60 minutes and wherein nitrogen flow is maintained over the heating and hold times to maintain a low oxygen environment;removing the hemp from the furnace and cooling it to room temperature;milling the cooled hemp to an average particle size of less than 2 microns; andcombining the milled hemp with a polymer and postprocessing the hemp and polymer into a fiber;wherein the fiber comprises between 0.1 and 20 weight percent of the milled hemp.2. The method of wherein said fiber is a single component yarn claim 1 , a bicomponent yarn claim 1 , or a tricomponent yarn.3. The method of wherein the fiber is a thread having a denier size of between 0.1 and 40.4. The method of wherein the polymer is selected from the group consisting of: a thermoset polymer claim 1 , a thermoplastic polymer claim 1 , and combinations thereof.5. The method of further comprising a full spectrum hemp extract wherein said full spectrum hemp extract comprises between 0.1 and 2.0 weight percent of the fiber.6. The method of wherein the polymer and portion of hemp derivative are further mixed with at least one excipient selected from the group consisting of: pigments claim 1 , UV stabilizers claim 1 , antioxidants claim 1 , heat stabilizing ...

FALSE TWIST YARN COMPRISING DYEABLE POLYOLEFIN FIBERS

A false twist yarn includes dyeable polyolefin fibers characterized as being polymer alloy fibers each having a sea-island structure in which a polyolefin (A) is the sea component and a polyester (B) having cyclohexanedicarboxylic acid compolymerized therein is the island component, and in which the dispersion diameter of the island component in a fiber cross section is 30-1000 nm, wherein the number of the polymer alloy fibers is three or more, and the polymer alloy fibers have physical properties (1) and (2): (1) crimp recovery (CR) being 10-40%; and (2) hot-water dimensional change being 0.0-7.0%. The polyolefin false twist yarn is capable of developing vivid and profound colors even though the polyolefin fibers therein are light in weight. 13.-. (canceled)4. A false-twisted yarn of a dyeable polyolefin fiber comprising three or more filaments of a polymer alloy fiber having a sea-island structure composed mainly of a polyolefin (A) as a sea component and a polyester (B) copolymerized with cyclohexanedicarboxylic acid as an island component , the island component having a dispersed particle diameter of 30 to 1 ,000 nm in fiber cross section and having physical features (1) and (2):(1) a crimp recovery rate (CR) of 10% to 40%, and(2) hot-water dimensional change rate of 0.0% to 7.0%.5. The false-twisted yarn as set forth in claim 4 , wherein claim 4 , in the polyester (B) claim 4 , 10 to 50 mol % of the dicarboxylic acid component is copolymerized with cyclohexanedicarboxylic acid.6. The false-twisted yarn as set forth in claim 4 , further comprising a compatibilizer (C) claim 4 , wherein the polyester (B) accounts for 3.0 to 20.0 parts by weight based on 100 parts by weight of the polyolefin (A) claim 4 , polyester (B) claim 4 , and compatibilizer (C).7. The false-twisted yarn as set forth in claim 5 , further comprising a compatibilizer (C) claim 5 , wherein the polyester (B) accounts for 3.0 to 20.0 parts by weight based on 100 parts by weight of the polyolefin ...

Multicomponent self-bulking fibers

The present invention provides multicomponent fibers designed to curl in response to external stimuli such as heat or moisture. The multicomponent fiber can have cross-sectional area comprising the first polymer component and the second polymer component, wherein the first polymer component and the second polymer component are configured in an eccentric sheath/core arrangement and wherein the core component has a non-circular shape. Also, the multicomponent fiber has a first cross-sectional center of mass and a cross-sectional periphery, the core component has a second cross-sectional center of mass; and the second cross-sectional center of mass is positioned from about 20 percent to about 70 percent of the distance from the first cross-sectional center of mass to a point on the cross-sectional periphery. Furthermore, the present disclosure provides a fabric including a plurality of multicomponent fibers designed to curl in response to external stimuli such as heat or moisture.

METHOD FOR PRODUCING DRAWN CONJUGATED FIBER, AND DRAWN CONJUGATED FIBER

Provided are a method for producing a drawn conjugated fiber, capable of producing a conjugated fiber having a high strength and a thin fineness, and a drawn conjugated fiber. A drawn conjugated fiber is produced by performing a spinning step of obtaining an undrawn fiber having a core-sheath structure in which a core material is a resin containing, as a main component, a crystalline propylene polymer and a sheath material is a resin containing, as a main component, an olefin polymer having a melting point lower than that of the core material, by means of melt-spinning (step S); and a drawing step of drawing the undrawn fiber (step S). During the production, a fineness of the undrawn fiber is adjusted to 1.5 dTex or less, and, in the spinning step, a melt flow rate of the core material discharged from the spinneret is adjusted to 70 to 170 g/10 minutes at 230° C. and a load of 21.18 N, and a ratio (=a core material MFR/a sheath material MFR) of the melt flow rate of the core material discharged from the spinneret at 230° C. and a load of 21.18 N to a melt flow rate of the sheath material discharged from the spinneret at 230° C. and a load of 21.18 N is adjusted to 1 to 2.2. 1. A method for producing a drawn conjugated fiber comprising:a spinning step of obtaining an undrawn fiber having a core-sheath structure in which a core material is a resin containing, as a main component, a crystalline propylene polymer and a sheath material is a resin containing, as a main component, an olefin polymer having a melting point lower than that of the core material, by means of melt-spinning; anda drawing step of drawing the undrawn fiber, whereinthe undrawn fiber has a fineness of 1.5 dTex or less, andin the spinning step, the core material discharged from a spinneret has a melt flow rate of 70 to 170 g/10 minutes at 230° C. and a load of 21.18 N, and a ratio of the melt flow rate of the core material discharged from the spinneret at 230° C. and a load of 21.18 N to a melt flow ...

CORE-SHEATH FILAMENTS INCLUDING DIENE-BASED RUBBERS AND METHODS OF PRINTING THE SAME

Core-sheath filaments are provided that comprise cores having diene-based rubbers that are crosslinked by multifunctional acrylates, resulting in superior high-temperature performance adhesives. The adhesive compositions have excellent durability against oxygen and moisture, low and stable dielectric properties, and superior high-temperature performance. Methods of making core-sheath filaments having cores including diene-based rubbers that are crosslinked by multifunctional acrylates and uses for such core-sheath filaments. 1. A core-sheath filament comprising:a non-tacky sheath, wherein the non-tacky sheath exhibits a melt flow index of less than 15 grams per 10 minutes (g/10 min); and at least 20 wt. to % 60 wt. % of a polymer selected from the group consisting of a styrene-isoprene block copolymer and an isobutylene-isoprene copolymer; and', 'a multifunctional (meth)acrylate., 'an adhesive core, wherein the adhesive core comprises2. The core-sheath filament of claim 1 , wherein the non-tacky sheath comprises LDPE.3. The core-sheath filament of claim 1 , wherein the core-sheath filament comprises 1 to 10 weight percent sheath and 90 to 99 weight percent hot-melt processable adhesive core based on a total weight of the core-sheath filament.4. The core-sheath filament of claim 1 , wherein the polystyrene-polyisoprene-polystyrene block copolymer further comprises a polyvinyl aromatic end block.5. The core-sheath filament of claim 1 , wherein the adhesive core further comprises a tackifier.6. The core-sheath filament of claim 1 , wherein the adhesive core further comprises an additive selected from the group consisting of a plasticizer claim 1 , an anti-oxidant claim 1 , a thermal stabilizer claim 1 , a UV blocker claim 1 , and combinations thereof.7. The core-sheath filament of claim 6 , wherein the core comprises 1 weight percent to 60 weight percent of the tackifier based on a total weight of the adhesive core.8. The core-sheath filament of claim 7 , wherein the ...

MULTI-COMPONENT FIBERS WITH IMPROVED INTER-COMPONENT ADHESION

Nonwoven fabrics are provided that include at least a first nonwoven layer. The first nonwoven layer includes multi-component fibers densely arranged and compacted against one another. The multi-component fibers comprise at least a first component comprising a first polymeric material including a first polyolefin and a second component comprising a second polymeric material including a second polyolefin, in which the first polymeric material is different than the second polymeric material. The first polymeric material, the second polymeric material, or both include a compatibilizer comprising a copolymer having a comonomer content including (i) at least 10% by weight of the compatibilizer of a first monomer corresponding to the first polyolefin and (ii) at least 10% by weight of the compatibilizer of a second monomer corresponding to the second polyolefin. 1. A nonwoven fabric , comprising:at least a first nonwoven layer comprising multi-component fibers densely arranged and compacted against one another to form a substantially smooth outer surface on at least a first side of the nonwoven fabric;the multi-component fibers comprising at least a first component comprising a first polymeric material including a first polyolefin and a second component comprising a second polymeric material including a second polyolefin; wherein the first polymeric material is different than the second polymeric material;wherein the first polymeric material, the second polymeric material, or both comprise a compatibilizer comprising a copolymer having a comonomer content including (i) at least 10% by weight of the compatibilizer of a first monomer corresponding to the first polyolefin and (ii) at least 10% by weight of the compatibilizer of a second monomer corresponding to the second polyolefin.2. The nonwoven fabric of claim 1 , wherein the multi-component fibers comprise a sheath/core configuration claim 1 , a side-by-side configuration claim 1 , a pie configuration claim 1 , an ...

Non-woven fabric and process for forming the same

The present invention relates to a nonwoven fabric comprising a nonwoven web which is formed from a plurality of trilobal fibers, wherein the lobes of the trilobal fibers each have a ratio of length to width in the range of from 1.5-4. The present invention also relates to the use of the non-woven fabric in a closure system in an absorbent article or in a reinforcement layer of an absorbent article. In addition, the present invention provides an absorbent article comprising the nonwoven fabric.

Halogen-Free Flame Retardant TPU Composition for Wire and Cable

The present disclosure provides a wire or cable comprising a flame retardant-free thermoplastic inner sheath and an outer sheath composition comprising, based on the weight of the composition, (a) 10 wt % to 90 wt % of a TPU based resin, (b) 5 wt % to 90 wt % of a metal hydrate, (c) 2 wt % to 50 wt % of a nitrogen-based phosphorus flame retardant, and (d) 2 wt % to 50 wt % liquid phosphate modifier, wherein the outer sheath is in contact with the insulation covering, and wherein the outer sheath has a thickness from greater than zero to 0.8 mm. 1. A cable comprising:a flame retardant-free thermoplastic inner sheath; and (a) 10 wt % to 90 wt % of a TPU based resin,', '(b) 5 wt % to 90 wt % of a metal hydrate,', '(c) 2 wt % to 50 wt % of a nitrogen-based phosphorus flame retardant, and', '(d) 2 wt % to 20 wt % of a liquid phosphate modifier,, 'an outer sheath composition comprising, based on the total weight of the composition,'}wherein the outer sheath is in contact with the inner sheath,wherein the outer sheath has a thickness greater than zero to 0.8 mm.2. The wire or cable of wherein the outer sheath comprises(a) 30 wt % to 50 wt % of a TPU based resin,(b) 20 wt % to 40 wt % of a metal hydrate,(c) 5 wt % to 20 wt % of a nitrogen-based phosphorus flame retardant, and(d) 3 wt % to 10 wt % of a liquid phosphate modifier.3. The wire or cable of wherein the metal hydrate is aluminum trihydrate.4. The wire or cable of wherein the nitrogen-based phosphorus flame retardant is selected from the group consisting of ammonium polyphosphate (APP) claim 1 , melamine polyphosphate (MPP) claim 1 , and piperazine pyrophosphate.5. The wire or cable of wherein the liquid phosphate modifier is selected from the group consisting of resorcinol diphenol phosphate (RDP) claim 1 , bisphenol A diphosphate (BDP) claim 1 , triphenol phosphate (TPP) claim 1 , tributoxyethyl phosphate (TBEP) claim 1 , and resorcinol bis(xylenol phosphate) (XDP).6. The wire or cable of wherein the outer sheath ...

Shaped Nonwoven

A nonwoven fabric. The nonwoven fabric can include a first surface and a second surface and a visually discernible pattern of three-dimensional features on one of the first or second surface. Each of the three-dimensional features can define a microzone comprising a first region and a second region. The first and second regions can have a difference in values for an intensive property, and wherein in at least one of the microzones, the first region is hydrophobic and the second region is hydrophilic. 2. The nonwoven fabric of claim 1 , wherein the first zone at least partially surrounds the second zone.3. The nonwoven fabric of claim 1 , wherein the difference in values for the intensive property for one of the microzones in the first zone is from about 1.2× to about 10× different from the difference in values for at least one of the microzones in the second zone.4. The nonwoven fabric of claim 1 , wherein the intensive property is thickness claim 1 , and wherein the thickness of every region is greater than zero.5. The nonwoven fabric of claim 4 , wherein the difference in thickness in the first zone is greater than about 25 microns.6. The nonwoven fabric of claim 1 , wherein the intensive property is basis weight claim 1 , and wherein the basis weight of every region is greater than zero.7. The nonwoven fabric of claim 6 , wherein the difference in basis weight in the first zone is greater than about 5 gsm.8. The nonwoven fabric of claim 1 , wherein the intensive property is volumetric density claim 1 , and wherein the volumetric density of every region is greater than zero.9. The nonwoven fabric of claim 8 , wherein the difference in volumetric density in the first zone is greater than about 0.042 g/cc.10. The nonwoven fabric of claim 1 , wherein at least one of the surfaces has a TS7 value of less than about 15 dB Vrms.11. The nonwoven fabric of claim 10 , wherein the first surface has a TS7 value of about 2 to about 12 dB Vrms claim 10 , and wherein the second ...

FINE FIBERS MADE FROM POLYMER CROSSLINKED WITH RESINOUS ALDEHYDE COMPOSITION

A fine fiber can be made having a structure with an axial core and a coating layer. The fiber can have a polymer core and one or two layers surrounding the core. The fine fiber can be made from a polymer material and a resinous aldehyde (e.g., melamine-aldehyde) composition such that the general structure of the fiber has a polymer core surrounded by at least a layer of the resinous aldehyde composition. 130.-. (canceled)31. A filter media comprising a filtration substrate and a layer comprising a plurality of fine fibers , the fine fibers comprising a core phase and a coating phase; wherein the core phase comprises a polymer and the coating phase comprises a resinous aldehyde composition; wherein at least a portion of the polymer is crosslinked by the resinous aldehyde composition; and further wherein the fine fiber does not include polyvinyl alcohol crosslinked with melamine-formaldehyde.32. The filter media of wherein the fine fibers are prepared from a resinous aldehyde composition comprising reactive alkoxy groups and a polymer comprising active hydrogen groups claim 31 , wherein the molar ratio of resinous aldehyde composition to polymer is such that the molar ratio of reactive alkoxy groups to active hydrogen groups is greater than 10:100.33. The filter media of wherein the active hydrogen groups comprise amido or amino groups.34. The filter media of wherein the fine fibers are prepared from the resinous aldehyde composition and the polymer in amounts such that the resinous aldehyde composition is present in an amount of greater than 20 parts by weight per 100 parts by weight of the polymer.35. The filter media of wherein the core phase comprises a mixture of the polymer and the resinous aldehyde composition.36. The filter media of wherein the fine fibers comprise three phases claim 31 , wherein the core phase comprises the polymer claim 31 , the coating phase comprises the resinous aldehyde composition claim 31 , and a transition phase comprises a mixture of ...

ENHANCEMENT OF REINFORCING FIBERS, THEIR APPLICATIONS, AND METHODS OF MAKING SAME

The invention relates to composite reinforcing fibers infused or compounded with pulp fibers and/or nano-fibers. The composite reinforcing fibers are composed of polymer, e.g., polymer resin. The pulp fibers and/or nano-fibers impart improved tensile strength to the composite reinforcing fibers, as well as a resulting product formed by the fibers. The composite reinforcing fibers may be used in a variety of cementitious applications, wherein traditional reinforcing fibers are typically used. 1. A method of preparing a composite reinforcing fiber , comprising:obtaining a synthetic polymer resin;compounding the synthetic polymer resin with a fiber component selected from the group consisting of pulp fiber, nano-fiber and mixtures thereof;forming a resin/fiber blend;melting the resin/fiber blend; andextruding the resin/fiber blend to form the composite reinforcing fiber.2. The method of claim 1 , further comprising compounding the fiber component with a water soluble resin prior to compounding the synthetic polymer resin with the fiber component.3. The method of claim 2 , further comprising extruding the fiber component with the water soluble resin and creating a master batch in pellet form.4. The method of claim 2 , wherein the water soluble resin is selected from the group consisting of polyethylene claim 2 , polypropylene and mixtures thereof.5. The method of claim 1 , wherein the melting of the resin/fiber blend is conducted in an extruder barrel and screw. This divisional patent application claims priority from U.S. patent application Ser. No. 15/700,261, filed on Sep. 11, 2017, which claims priority from provisional patent application No. 62/385,410, entitled “ENHANCEMENT OF REINFORCING FIBERS, THEIR APPLICATIONS, AND METHODS OF MAKING SAME”, filed on Sep. 9, 2016, the contents of which are incorporated herein by reference.The invention generally relates to reinforcing fibers for cementitious applications and, more particularly, to reinforcing fibers that are ...

CORE-SHEATH FILAMENTS INCLUDING POLYISOBUTYLENE COMPOSITIONS AND METHODS OF PRINTING THE SAME

Provided are amorphous polyolefin compositions that can be dispensed digitally as the core in a core-sheath construction. These formulations provide dependable adhesion to both polar and non-polar surface in addition to providing a high barrier to air and moisture which is beneficial in many applications. These formulations and the method of processing these formulations provide many benefits, including low VOCs, avoiding die cutting, design flexibility, achieving intricate nonplanar bonding patterns, printing on thin and/or delicate substrates, and printing on an irregular and/or complex topography, no need for release liners or low-adhesion backsize, and no need for a post-processing step. 1. A core-sheath filament comprising:a non-tacky sheath, wherein the non-tacky sheath exhibits a melt flow index of less than 15 grams per 10 minutes (g/10 min); and 'a polyisobutylene polymer having a weight average molecular weight of 125000 grams per mole (g/mol) to 800000 g/mol.', 'an adhesive core, wherein the adhesive core comprises2. The core-sheath filament of claim 1 , wherein the non-tacky sheath comprises LDPE.3. The core-sheath filament of claim 1 , wherein the core-sheath filament comprises 1 to 10 weight percent sheath and 90 to 99 weight percent hot-melt processable adhesive core based on a total weight of the core-sheath filament.4. The core-sheath filament of claim 1 , wherein the polyisobutylene-polymer has a weight average molecular weight of 150000 g/mol to 790000 g/mol claim 1 , 200000 g/mol to 780000 g/mol claim 1 , or 245000 g/mol to 770000 g/mol.5. The core-sheath filament of claim 1 , wherein the adhesive core comprises 10 weight percent to 60 weight percent of the polyisobutylene polymer based on a total weight of the adhesive core.6. The core-sheath filament of claim 1 , wherein the polyisobutylene polymer comprises a first polyisobutylene polymer having a weight average molecular weight of 3000000 grams per mole (g/mol) to 2500000 g/mol and a second ...

METHODS OF CREATING SOFT AND LOFTY NONWOVEN WEBS

A method of creating a soft and lofty continuous fiber nonwoven web is provided. The method includes providing molten polymer to a spinneret defining a plurality of orifices, and flowing a fluid intermediate the spinneret and a moving porous member. The moving porous member is positioned below the spinneret. The method includes using the fluid to draw or push the molten polymer, in a direction that is toward the moving porous member, through at least some of the plurality of orifices to form a plurality of individual continuous fiber strands. The method includes depositing the continuous fiber strands on the moving porous member at a first location to create an intermediate continuous fiber nonwoven web, and removing and/or diverting some of the fluid proximate to the first location to maintain loft and softness in the deposited intermediate continuous fiber nonwoven web. 1. A method of manufacturing a soft and lofty continuous fiber nonwoven web , the method comprising:providing molten polymer to a spinneret defining a plurality of orifices;flowing a fluid intermediate the spinneret and a moving porous member, wherein the moving porous member is positioned below the spinneret;using the fluid to draw or push the molten polymer, in a direction that is toward the moving porous member, through at least some of the plurality of orifices to form a plurality of individual continuous fiber strands;depositing the continuous fiber strands on the moving porous member at a first location to produce an intermediate continuous fiber nonwoven web;first removing some of the fluid under the first location;second removing and/or diverting some of the fluid proximate to, but downstream of, the first location to maintain loft and softness in the deposited intermediate continuous fiber nonwoven web; andreorienting the continuous fibers of the intermediate continuous fiber nonwoven web downstream of the first location.2. The method of claim 1 , comprising blowing-off the second removed ...

Fibers for non-woven fabrics having blends of polymers with high and low melt flow rates

A spunbond non-woven fabric includes a plurality of fibers. The fibers are formed from a polymer blend that includes at least one first polymer and at least one second polymer. A melt flow rate of the at least one first polymer is greater than a melt flow rate of the at least one second polymer, and the melt flow rate of the at least one second polymer is about 9 g/10 min to less than 18 g/10 min. The blend may include a percentage by weight of the second polymer that is greater than a percentage by weight of the first polymer.

Method for Making a Shaped Nonwoven

A method for making nonwoven fabric. The nonwoven fabric can include three-dimensional features that define a microzone comprising a first region and a second region. The first and second regions can have a difference in values for an intensive property. The nonwoven further has a plurality of apertures, wherein at least a portion of the aperture abuts at least one of the first region and the second region of the microzone. 1. A method for making an apertured nonwoven fabric , the method comprising the steps of:a. providing a fiber laydown surface in the form of a first side of a belt, the belt comprising a reinforcing member and a pattern of three-dimensional raised elements extending outwardly from the reinforcing member on the first side of the belt, the belt comprising a plurality of openings, each opening allowing fluid communication between the first side of the belt and a second side of the belt;b. providing a fiber melt spinning apparatus above the first side of the belt and a vacuum source below the second side of the belt, wherein the belt is moved in a machine direction between the fiber spinning apparatus and the vacuum source;c. providing a compaction nip between a first pair of rolls, at least one of the rolls of the first pair of rolls being heated;d. providing a bonding operation;e. melt spinning fibers from the melt spinning apparatus onto the fiber laydown surface as the belt moves in the machine direction over the vacuum source to collect the melt spun fibers onto the fiber laydown surface, the collected melt spun fibers forming a nonwoven web having three-dimensional features, each three-dimensional feature defining a microzone comprising a first region and a second region, the first and second regions having a difference in values for an intensive property, wherein the intensive property is one or more of thickness, basis weight, and volumetric density, wherein in each microzone, the second region comprises a portion of the nonwoven web that is ...

Multifilament, Monofilament, Non-Woven or Tape

A multifilament, a monofilament, a non-woven or a tape, each having 1 to 2000 Denier per filament and a draw ratio of 1:2 to 1:11 and each made of a composition containing the components 2. A multifilament claim 1 , a monofilament claim 1 , a non-woven or a tape according to claim 1 , wherein E is a group —O-E-OH.3. A multifilament claim 1 , a monofilament claim 1 , a non-woven or a tape according to claim 1 , wherein component (A) is polyethylene claim 1 , polypropylene claim 1 , an ethylene copolymer or a propylene copolymer or mixtures thereof.6. A multifilament claim 5 , a monofilament claim 5 , a non-woven or a tape according to claim 5 , wherein the radicals R claim 5 , R claim 5 , Rand Rare hydrogen claim 5 , C-Calkyl or C-Calkoxy.8. A multifilament claim 1 , a monofilament claim 1 , a non-woven or a tape according to claim 1 , containing the components (A) claim 1 , (B) claim 1 , (C) and (D).9. A multifilament claim 1 , a monofilament claim 1 , a non-woven or a tape according to claim 1 , containing as additional component (E) an UV absorber.10. A multifilament claim 9 , a monofilament claim 9 , a non-woven or a tape according to claim 9 , wherein the UV absorber is 2-(2′-hydroxyphenyl)benzotriazole claim 9 , a 2-hydroxybenzophenone claim 9 , an ester of substituted or unsubstituted benzoic acid claim 9 , an acrylate claim 9 , an oxamide claim 9 , a 2-(2-hydroxyphenyl)-1 claim 9 ,3 claim 9 ,5-triazine claim 9 , a monobenzoate of resorcinol or a formamidine.11. An article comprising a multifilament claim 1 , a monofilament claim 1 , a non-woven or a tape according to and being selected from the group consisting of a carpet claim 1 , a roofing membrane claim 1 , a geotextile claim 1 , an automotive polyolefin structure and a shade cloth.12. An artificial turf comprising a multifilament claim 8 , a monofilament claim 8 , a non-woven or a tape according to .13. An artificial turf comprising a multifilament claim 8 , a monofilament claim 8 , a non-woven or a tape ...

Extruded Component With Antimicrobial Glass Particles

An extruded component formed from an extruded material having antimicrobial components is disclosed. The extruded material may be formed from polymers and formed into a generally elongated shape. The antibacterial components may be included within at least a portion of the material forming the extruded component. The extruded component may be a filament and may include silver glass particles. In some embodiments, the extruded component may be a single component system, a bi-component system, or a tri-component system. 1. An extruded filament , comprising: an extruded core component including an antimicrobial component comprising silver glass particles, said core component being generally sector shaped in cross section and having two sides and an arc; and', 'a second component co-extruded with said core component that does not include any antimicrobial component, said second component also being generally sector shaped in cross section and having two sides and an arc;, 'an extruded multi-component material comprisingwherein a plurality of said core components and a plurality of said second components are positioned side to side with said arcs of said pluralities of components forming a perimeter of said filament; andwherein said core component and said second component each comprise a hydrophobic polymer.2. The extruded component of claim 1 , wherein said hydrophobic polymer comprises polyethylene.3. The extruded component of claim 1 , wherein said core component and said second component each include dye.4. The extruded component of claim 1 , wherein a viscosity of said core component is at least ninety percent of a viscosity of said second component.5. The extruded component of claim 1 , further comprising:a third component, said third component being generally sector shaped in cross section and having two sides and an arc;wherein said filament further comprises said third component;wherein said third component also comprises a hydrophobic polymer.6. The extruded ...

BI-COMPONENT FIBER AND FABRICS MADE THEREFROM

The instant invention provides bi-component fibers and fabrics made therefrom. The bi-component fiber according to the present invention comprises: (a) from 5 to 95 percent by weight of a first component comprising at least one or more first polymers, based on the total weight of the bi-component fiber; (b) from 5 to 95 percent by weight of a second component comprising at least an ethylene-based polymer composition, based on the total weight of the bicomponent fiber, wherein said ethylene-based polymer composition comprises; (i) less than or equal to 100 percent by weight of the units derived from ethylene; and (ii) less than 30 percent by weight of units derived from one or more α-olefin comonomers; wherein said ethylene-based polymer composition is characterized by having a Comonomer Distribution Constant in the range of from greater than from 100 to 400, a vinyl unsaturation of less than 0.1 vinyls per one thousand carbon atoms present in the backbone of the ethylene-based polymer composition; a zero shear viscosity ratio (ZSVR) in the range from 1 to less than 2; a density in the range of 0.920 to 0.970 g/cm, a melt index (I) in the range of from 10 to 40 g/10 minutes, a molecular weight distribution (M/M) in the range of from 1.8 to 3.0, and a molecular weight distribution (M/M) in the range of from less than 2; and wherein said bi-component fiber has a denier per filament in the range of from 0.5 to 10 g/9000 m. 1. A bi-component fiber comprising:from 5 to 95 percent by weight of a first component comprising at least one or more first polymers, based on the total weight of the bi-component fiber; less than or equal to 100 percent by weight of the units derived from ethylene; and', 'less than 30 percent by weight of units derived from one or more a-olefin comonomers;', {'sup': '3', 'sub': 2', 'w', 'n', 'z', 'w, 'wherein said ethylene-based polymer composition is characterized by having a Comonomer Distribution Constant in the range of from greater than from ...

SEA-ISLAND COMPOSITE FIBER

Provided is a sea-island composite fiber having excellent spinnability and thermoplastic deformability. The sea-island composite fiber comprises an island component and a sea component having a lower melting point than that of the island component, wherein the fiber has an aspect ratio of from 2.0 to 5.0 in a fiber cross section; and the sea component has a sea component thickness of from 0.2 to 2.0 μm, the sea component thickness being defined as a distance between an outer periphery of the fiber and an island component closest to the outer periphery on a minor axis of the fiber cross section. 1. A sea-island composite fiber comprising an island component and a sea component having a lower melting point than that of the island component , whereinthe fiber has an aspect ratio of from 2.0 to 5.0 in a fiber cross section; andthe sea component has a sea component thickness of from 0.2 to 2.0 μm, the sea component thickness being defined as a distance between an outer periphery of the fiber and an island component closest to the outer periphery on a minor axis of the fiber cross section.2. The sea-island composite fiber according to claim 1 , wherein the island component contains an ethylene-vinyl alcohol copolymer.3. The sea-island composite fiber according to claim 1 , wherein the sea component contains a polyolefinic resin.4. The sea-island composite fiber according to claim 2 , wherein the sea component contains a polyolefinic resin.5. The sea-island composite fiber according to claim 1 , wherein the sea-island composite fiber has a single fiber fineness of 50 dtex or lower.6. The sea-island composite fiber according to claim 1 , wherein the island component has an aspect ratio of 5.0 or lower.7. The sea-island composite fiber according to claim 5 , wherein the aspect ratio of the island component has a CV value of 45% or lower.8. The sea-island composite fiber according to claim 1 , wherein the sea-island composite fiber has a fiber length of from 0.5 to 30 mm.9. ...

ULTRA-HIGH MOLECULAR WEIGHT POLYETHYLENE FUSED YARN

A fused yarn () including an ultra-high molecular weight polyethylene multifilament contains a liquid paraffin having an average molecular weight of 400 or more in an amount 15% by weight or more. The ultra-high molecular weight polyethylene fused yarn () of the present invention is excellent in fusibility. 16-. (canceled)7. An ultra-high molecular weight polyethylene fused yarn comprising:an ultra-high molecular weight polyethylene multifilament, wherein the fused yarn includes a liquid paraffin having an average molecular weight of 400 or more in an amount of 15% by weight or more.8. The ultra-high molecular weight polyethylene fused yarn according to claim 7 , wherein the liquid paraffin has an average molecular weight of 430 or more.9. The ultra-high molecular weight polyethylene fused yarn according to claim 7 , wherein the liquid paraffin has an average molecular weight of 450 or more and 490 or less.10. The ultra-high molecular weight polyethylene fused yarn according to claim 7 , wherein a single yarn fineness of the fused yarn is 0.7 dtex or more and 2.5 dtex or less.11. The ultra-high molecular weight polyethylene fused yarn according to claim 8 , wherein a single yarn fineness of the fused yarn is 0.7 dtex or more and 2.5 dtex or less.12. The ultra-high molecular weight polyethylene fused yarn according to claim 9 , wherein a single yarn fineness of the fused yarn is 0.7 dtex or more and 2.5 dtex or less.13. The ultra-high molecular weight polyethylene fused yarn according to claim 7 , wherein the fused yarn is twisted with a twist coefficient of more than 0 and 2 claim 7 ,200 or less.14. The ultra-high molecular weight polyethylene fused yarn according to claim 8 , wherein the fused yarn is twisted with a twist coefficient of more than 0 and 2 claim 8 ,200 or less.15. The ultra-high molecular weight polyethylene fused yarn according to claim 9 , wherein the fused yarn is twisted with a twist coefficient of more than 0 and 2 claim 9 ,200 or less.16. The ...

POLYPROPYLENE-BASED RESIN COMPOSITION, AND FIBER AND NONWOVEN FABRIC USING SAME

The present invention relates to [1] a polypropylene-based resin composition satisfying the following requirements (1) and (2) in a differential molecular weight distribution curve which is obtained from measurement by the gel permeation chromatography using polystyrene as a conversion standard, and in which the abscissa represents a logarithmic value log(M) of a molecular weight M, and the ordinate represents a dw/d log(M) value obtained by differentiating a concentration fraction w by the logarithmic value log(M) of the molecular weight: 1: A polypropylene-based resin composition satisfying the following requirements (1) and (2) in a differential molecular weight distribution curve which is obtained from measurement by gel permeation chromatography using polystyrene as a conversion standard , and in which an abscissa represents a logarithmic value log(M) of a molecular weight M , and an ordinate represents a dw/d log(M) value obtained by differentiating a concentration fraction w by the logarithmic value log(M) of the molecular weight M:(1) In the differential molecular weight distribution curve, a value obtained by integrating the dw/d log(M) values in a range of (5.5≤log(M)) is 25% or less relative to a value obtained by integrating the dw/d log(M) values over an entire range of log(M); and(2) In the differential molecular weight distribution curve, a value obtained by integrating the dw/d log(M) values in a range of (log(M)≤4.5) is more than 10% relative to a value obtained by integrating the dw/d log(M) values over the entire range of log(M).2: The polypropylene-based resin composition of claim 1 , comprising a polypropylene-based resin (A) satisfying the following requirement (3) and a polypropylene-based resin (B) satisfying the following requirement (4) in respective differential molecular weight distribution curves which are each obtained from measurement by gel permeation chromatography using polystyrene as a conversion standard claim 1 , and in each of ...