ВИНИЛОВОЕ НАПОЛЬНОЕ ПОКРЫТИЕ

МАТЕРИАЛ ОСНОВАНИЯ ДЛЯ ВИНИЛОВОГО НАПОЛЬНОГО ПОКРЫТИЯ

Структура-основа дл сшиваемых тканей дл бумагоделательных машин

Нетканый материал для медицинского и хирургического компресса

Изобретение относится к текстильной промышленности и позволяет повысить абсорбционную способность и эластичность материала при сохра нении его упругости. Материал 1 со держит синтетическую сетку из продольных 2 и поперечных 3 элементов и скрепленный термически с сеткой настил 4 из целлюлозных волокон, который имеет ряды волнистостей. Последние равномерно расположены в продольном направлении. Смежные выпуклости и волнистостей 5 расположены выше и ниже плоскости сетки. Выпуклости двух соседних рядов волнистое- СО : тей выполнены в виде подушечек. 5 з. п. 1Ф-ЛЫ, 4 ил. to sl со sl СП ...

ABDECKVLIES.

WASSERDISPERGIERBARE FASERVLIES-COFORMCOMPOSITE

A COMPOSITE NON-WOVEN FABRIC FOR ONE-PIECE SHOE COUNTERS

A non-woven fabric for making shoe counters is produced by dispersing a thermoplastic resin throughout the interstitial space of a non-woven fabric having two fabric surfaces, the first of which has a velvety or felt texture and the second of which has a lightly fused surface, and heating sad fabric in a manner which impregnates said fabric to form a non-woven composite with one velvety or felt surface substantially free of thermoplastic resin and without buffing. Preferably a carded crosslapped polypropylene web is needled with the needle up stroke reduced to produce the velvety surface, fused on the other surface, impregnated with an acrylate or styrene homopolymer or copolymer squeezed to remove excess resin then heated to cause the resin to flow. The fused side is coated with ethylene vinyl acetate hot melt adhesive to allow the counter to be stuck to the rear of the shoe. ...

Methods of making composite nonwoven webs

Disclosed herein are improvements to processes and equipment for the manufacture of composite nonwoven webs comprising a mixture of two or more different fibers and formed from at least two streams of air-entrained fibers. Adjacent the perimeter of an exit port of one of the fiber streams are located a series of spaced tabs and apertures. As a first stream of air-entrained fibers pass the series of tabs and apertures, vortices are formed therein. When mixed with a second stream of air-entrained fibers, the vortices within the first stream of fibers causes increased mixing of the fibers, helping to drive the first fibers deeper into the second stream of air-entrained fibers.

Improved surge management fibrous nonwoven web for personal care absorbent articles and the like

INTER-LINING FIBROUS MATERIAL

Co-mingling of particulate material and spun-blown fibers

Web forming apparatus 1000 for forming commingled web 1900 of particulate material selected from short fibres, pulp fibres and particles, and synthetic spun-blown fibres. The apparatus comprises particulate material supply system 1410 to deliver downwardly moving stream of particulate material; a polymer supply system 1210, 1310 providing polymer material to first and second multi-row spin-blowing systems comprising an array of polymer releasing orifices with cross-directionally extending rows of orifices 1225, 1325; a forming box 1100 with a particulate material inlet connected to the particulate material supply system, two spun-blown fibre inlets each connected to one of the spin-blowing systems, and a commingled web outlet; a collecting device 1600 for collecting commingled short and spun-blown fibres, adapted to move along a machine direction of the apparatus. The spin-blowing inlets are upstream and downstream of the particulate material inlet. The array of polymer releasing orifices ...

A nonwoven for medicine pads.

Nonwoven fabric for medicine pads.

ESSENTIAL STRUCTURE FOR BESÄUMTE PAPER-MACH-SUPPL.-WEAVES

BIOLOGICALLY DEGRADABLE ONE NON-WOVEN CLOTH MATERIAL

SCHICHTSTOFF

PRODUCTION OF A NETWORK FOIL

PROCEDURE FOR THE PRODUCTION OF ENNOBLED SPIN FLEECES.

MICRO NON-WOVEN CLOTH PRODUCT.

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

Water-dispersible fibrous nonwoven coform composites

ELECTRIC BLANKET SHELL AND METHOD OF PRODUCTION

BASE STRUCTURE FOR SEAMED PAPERMAKER'S FABRICS

An on-machine-seamable papermaker's fabric that does not require the weaving of a complete base fabric having a length and a width specified by a papermaker is disclosed. The on-machine-seamable papermaker's fabric has a base structure which is a flattened array of spirally wound multicomponent yarn. The flattened array has two layers, two sides, a length, a width and two widthwise edges. In each turn of the spiral winding, the multicomponent yarn has a substantially lengthwise orientation and is joined side-by-side to those adjacent thereto by a fusible thermoplastic material in each of the two layers. The multicomponent yarn forms seaming loops along the two widthwise edges. At least one layer of staple fiber material is needled into one of the two sides of the base structure and through the two layers.

REINFORCEMENT COMPRISING PARALLEL ROVINGS OF GLASS STRANDS

Le renfort selon l'invention comporte une couche de renfort (2) à base de mèches (2a) parallèles de fils de verre continus, et une ou deux couches de liaison (3) à tronçons de fibres à surface thermofusible. L'ensemble est solidarisé par des tronçons pénétrants (3b) de fibres à surface thermofusible, qui pénètrent selon une partie de leur longueur dans la couche de renfort (2) et qui adhèrent aux fils de verre continus des mèches (2a).

FIBRILLATED WEATHERPROOF WEBS HAVING NETWORK STRUCTURE, NONWOVEN FABRICS MADE FROM THE WEBS, AND PROCESSES FOR THE PRODUCTION OF THE WEBS AND NONWOVEN FABRICS

Disclosed herein is a fibrillated weatherproof web having a network structure, which can be produced with ease and is economical. The web comprises a multilayer composite film composed of at least two layers, one being a first layer (I) made of a first thermoplastic resin and the other a second layer (II) made of a second thermoplastic resin having a melting point lower than the first thermoplastic resin and containing at least 300 ppm of a light resistance imparting agent. A number of slits have been formed in a longitudinal or transverse direction. The web has been oriented at a draw ratio in a range of from 1.1 to 15 times. A nonwoven fabric making use of one or more fibrillated webs of the above sort and processes for the production of the web and nonwoven fabric are also disclosed.

PARALLELIZATION OF STAPLE FIBERS BY ELECTROSTATIC MEANS

FIBRILLATED WEATHERPROOF WEBS HAVING NETWORK STRUCTURE, NONWOVEN FABRICS MADE FROM THE WEBS, AND PROCESSES FOR THE PRODUCTION OF THE WEBS AND NONWOVEN FABRICS

MICROFIBRE WEB PRODUCT

A method of making a non-woven web of melt blown polymeric fibres wherein the melt blown fibres have particles introduced into the stream of-micro-fibres after the microfibres have been extruded. If the particles are of super absorbent material they are distributed substantially individually and spaced throughout the web and provide effective results when used for example in a sanitary napkin, diaper or incontinence pad. If the particles are for example, clay, calcium carbonate, kaolin chalk or the like, then a wiper product made from the web has improved wiping properties.

NON-WOVEN FABRIC FOR MEDICAL COMPRESSES

WEB OF BLENDED MICROFIBERS AND CRIMPED BULKING FIBERS

ABSORBENT ARTICLE HAVING A MULTILAYER BLENDED CORE AND A METHOD OF FORMING

An absorbent article, such as a thin incontinence pad or pantyliner, is disclosed which has an absorbent core formed from multiple layers of blended material for providing protection against involuntary urine loss. A method of forming the absorbent article is also disclosed. The absorbent article includes a liquid permeable bodyside liner, a liquid-impermeable baffle, and first and second absorbents positioned between the liner and the baffle. The first absorbent is a stabilized material containing a superabsorbent and has a predetermined basis weight. The second absorbent is also a stabilized material containing a superabsorbent. The second absorbent is positioned below the first absorbent and has a basis weight that is at least equal to the basis weight of the first absorbent.

MELTBLOWN-SPUNBONDED-MELTBLOWN LAMINATED FABRIC

There is disclosed a laminated, nonwoven fabric and a process for producing such a laminated, nonwoven fabric having desirable fluid holding and fluid release characteristics. The process provides that two sheets of meltblown fiber fabric are produced on forming wire assemblies, cooled at a cooling area, and are then laminated on opposite sides of a sheet of spunbonded fibers using to form the laminated, nonwoven fabric.

SURGE MANAGEMENT FIBROUS NONWOVEN WEB FOR PERSONAL CARE ABSORBENT ARTICLES AND THE LIKE

Disclosed herein is a fibrous nonwoven web which is particularly well-suited for use as a surge layer in personal care absorbent articles including, but not limited to, diapers, training pants, incontinence garments, sanitary napkins, bandages and the like. The fibrous nonwoven web is made from a plurality of fibers heat bonded to one another to form a nonwoven web having a basis weight of at least 20 grams per square meter, a void volume of between about 40 and about 60 centimeters per gram of web while under a pressure of 689 dynes per square centimeter, a permeability of about 5,000 to about 8,000 darcy, a porosity of about 97.2 percent to about 98.8 percent and a surface area per void of about 24 to about 49 square centimeters per cubic centimeter. The fibrous nonwoven web will have a saturation capacity of between about 30 and about 50 grams of 0.9 percent saline solution per gram of web and a compression resilience in both the wet and dry state of at least about 60 percent.

METHOD AND DEVICE FOR MAKING COMPOSITE SHEETS

La présente invention concerne un procédé de fabrication de plaques composites dans lequel: on introduit en continu au moins une nappe de fils, cette nappe comprenant au moins deux matières présentant des points de fusion différents, dans une zone où elle est chauffée à une température comprise entre lesdits points de fusion et inférieure à la température de dégradation de la matière présentant le point de fusion le plus bas; on fait passer la nappe sur au moins une barre tournante chauffée à une température comprise entre lesdits points de fusion et inférieure à la température de dégradation de la matière présentant le point de fusion le plus bas; on comprime la nappe au sortir de la ou des barres et on la refroidit de façon à former une bande composite; on collecte la bande sous forme d'une ou plusieurs nappes composites. La présente invention concerne également un dispositif de mise en oeuvre du procédé ainsi que les produits obtenus.

Support à base de nappe non tissée pour article plat et son procédé de fabrication.

Support based nonwoven web for flat article and method of making same.

Machine automatique pour la fabrication en continu de filtres à cigarettes

Procédé de fabrication de fils floches, appareil pour sa mise en oeuvre et fil obtenu par ce procédé

Appareil pour la fabrication d'une étoffe non tissée

Abrieb- und knickfestes Kunstleder sowie Verfahren zu dessen Herstellung

Procédé de fabrication d'une étoffe non tissée

Verfahren zur Herstellung von verstärkten Kanten und/oder Nähten zur Fertigung konfektionierter Erzeugnisse aus einem aus Plastfäden gebildeten Material und Einrichtung zur Durchführung des Verfahrens

Verfahren zur Herstellung von Hüllmaterial für Damenbinden

Process for producing a nonwoven consolidated in a patterned manner

WIPING FLEECE, IN PARTICULAR AS INSERT INTO A COMPUTER DISK.

Support based nonwoven web for flat article and method of making same.

Procédé de fabrication d'une étoffe non tissée

REINFORCED TEXTILE BASE FROM CELLULOSE MUCH FIBER THREADS, INTENDED, IN PARTICULAR, FOR BITUMEN MEMBRANES

METHOD OF THE PRODUCTION OF FLEECY LAMINAR OF MATERIAL FROM AT LEAST TWO EXTERNAL OF MATERIALS AND AVERAGE CELLULOSE LAYER

Apertured fiber net and manufacturing method thereof

Laminated non-woven fabric sheet

nonwoven fabrics and manufacturing method thereof

NON-WOVEN MATERIAL IN PARTICULAR FOR COMPRESSES STERILISABLES

NON-WOVEN MATERIAL FOR MEDICAL COMPRESSES

ELEMENTS FILIFORMES, LEUR PROCEDE DE FABRICATION ET LEURS APPLICATIONS DANS LE DOMAINE DES STRUCTURES COMPOSITES

Ces éléments filiformes sont constitués de lanières retordues ou non de feutre aiguilleté, d'aspect uniforme ou multicouches. Ils peuvent être appliqués à l'état continu ou discontinu, à la réalisation de sols et de murs, ainsi qu'à la réalisation de structures décoratives telles que : tissus, tricots, tresses ou toute autre structure composite.

PROCESS AND DEVICE OF MANUFACTURE OF COMPOSITE PLATES

La présente invention concerne un procédé de fabrication de plaques composites dans lequel: - on introduit en continu au moins une nappe de fils, cette nappe comprenant au moins deux matières présentant des points de fusion différents, dans une zone où elle est chauffée à une température comprise entre lesdits points de fusion et inférieure à la température de dégradation de la matière présentant le point de fusion le plus bas, - on fait passer la nappe sur au moins une barre tournante chauffée à une température comprise entre lesdits points de fusion et inférieure à la température de dégradation de la matière présentant le point de fusion le plus bas, - on comprime la nappe au sortir de la ou des barres et on la refroidit de façon à former une bande composite, - on collecte la bande sous forme d'une ou plusieurs nappes composites. La présente invention concerne également un dispositif de mise en oeuvre du procédé ainsi que les produits obtenus. par ...

REINFORCEMENT HAS WIRE WICK OF GLASS PARRALLELES.

Le renfort selon l'invention comporte une couche de renfort (2) à base de mèches (2a) parallèles de fils de verre continus, et une ou deux couches de liaison (3) à tronçons de fibres à surface thermofusible. L'ensemble est solidarisé par des tronçons pénétrants (3b) de fibres à surface thermofusible, qui pénètrent selon une partie de leur longueur dans la couche de renfort (2) et qui adhèrent aux fils de verre continus des mèches (2a).

POROUS SUPPORTED ARTICLES AND METHODS OF MAKING

BASE STRUCTURE FOR SEAMED PAPERMAKER'S FABRICS

An on-machine-seamable papermaker's fabric has a base structure (50) which is a flattened array (30) of spirally wound multicomponent yarn (16). The flattened array (30) -has two layers, two sides, a length, a width and two widthwise edges (32). In each turn of the spiral winding, the multicomponent yarn (16) has a substantially lengthwise orientation and is joined side-by- side to those adjacent thereto by a fusible thermoplastic material in each of the two layers. The multicomponent yarn forms seaming loops (36), along the two widthwise edges (32). At least one layer of staple fiber material is needled into one of the two sides of the base structure (50) and through_ the two-layers. © KIPO & WIPO 2007 ...

Fiber-containing structure, method for manufacturing the same and uses thereof

The present invention relates to a fiber-containing structure comprising a cross-woven and welded woven base material and a welded elastomer layer, and at least one part of the woven base material and the welded elastomer layer is welded to each other. The invention also relates to a method for manufacturing the fiber-containing structure and a shoes structure containing the fiber-containing structure.

NONWOVEN FABRIC.

Tissu non tissé pour essuyage comprenant : une couche interne (10) de fibres pratiquement thermoplastiques, choisies parmi les fibres d'acétate, les fibres acryliques, les fibres de vinyon, les fibres de polyoléfines, les fibres de polyamides, parmi lesquels le Nylon 6, et des mélanges de celles-ci,et au moins une couche externe (12) de fibres de longueur textile pratiquement non-thermoplastique, les fibres de ladite couche interne (10) ayant un point de fusion plus bas que les fibres de ladite couche externe (12) lesdites couches internes et externes étant liées thermiquement ensemble en une pluralité de points de liaison séparés (20), en retrait.

Disposable absorbent mat material - has abrasion resistant pervious nonwoven web bonded to absorbent underlayer

The material comprises an abrasion-resistant pervious nonwoven web of bonded filaments, and an absorbent layer of microfibres. The layers are bonded intermittently with the bonds penetrating through the pervious layer and joining the fibres of that layer to those in the absorbent layer. The absorbent layer pref. incorporates absorbent particles and/or fibres and is pref. od 30% polypropylene fibres and 70% wood pulp with a basis wt. of 190 g/m2. The pervious layer is pref. of spun-bonded polypropylene treated with or containing a surfactant. Bonds are pref. formed by ultrasound or heat and form pockets to provide enhanced roughness, with the bonds in a diamond or square pattern. There may be a waterproof backing layer over the exposed side of the absorbent layer, e.g. of polyethylene.

BIODEGRADABLE FILM AND LAMINATE

Disclosed are a biodegradable film and an enhanced biodegradable fabric and laminate prepared by laminated biodegradable films, which mainly comprise PBAT or PBS, or a mixture thereof, PLA and other degradable high molecular polymers, such as PBSA, PCL, PCL-BS and ΡΗΑ, to prepare PLA, and a new mixture of PLA and PHAs, or a mixture of PLA with PBAT and PBS, or a mixture of PLA and PHAs with PBAT and PBS or other degradable high molecular polymers. The new fabrics and laminates have a stronger biodegradability in an environment containing microorganisms and have a good shelf life, and good strength, agility and flexibility.

NONWOVEN WEB LAMINATE HAVING RELATIVELY HYDROPHILIC ZONE AND RELATED METHOD FOR ITS MANUFACTURE

A zone treated spunbonded/meltblown/spunbonded (SMS) or spunbonded/spunbonded (SS) fabric laminate (2') that combines the separate functions of the topsheet and cuff in one component of an absorbent article. The SMS fabric laminate is treated with surfactant to form one or more hydrophilic zones (A, B or C). The untreated areas of the fabric laminate remain hydrophobic and perform the function of the cuff. The fabric laminate is treated with surfactant on both sides using a foam applicator. The application of foam produces sharp transitions (80) between the hydrophilic and hydrophobic zones.

MULTICOMPONENT FIBERS AND FABRICS MADE USING THE SAME

The present invention provides multicomponent fibers arranged in structured domains. At least one of the polymer components is formed of a multipolymer blend. The present invention also provides nonwoven fabrics formed of the multicomponent fibers, the fabrics having a superior combination of extensibility, tensile properties and abrasion resistance. A second layer can be laminated to this coherent extensible nonwoven web.

COMPOSITE FABRICS COMPRISING CONTINUOUS FILAMENTS LOCKED IN PLACE BY INTERMINGLED MELT BLOWN FIBERS AND METHODS AND APPARATUS FOR MAKING

A low cost, high web integrity fabric (44) that can be economically produced and tailored to provide a variety of different combinations of characteristics and properties for different end uses. It is a fabric wherein the strength in any direction can be predetermined and also wherein the elasticity in any direction can be varied in a predetermined fashion. It is also a fabric that combines continuous filaments (16), ranging from elastomeric to non-elastic but elongatable to at least a minimum extent, for strength and elasticity with the predetermined indepth intermingling of fibrous melt blown webs (22, 28) for interlocking of the said continuous filaments in the formation of the integrated, fibrous and continuous filament matrix.

FINE FIBER COMPOSITE WEB LAMINATES

A multilayer laminate (10) comprising a fine fiber nonwoven composite web (12) which is a mixture of a first group of fibers and a second group of fibers such that the first and second fibers comprise polymers that are incompatible with each other. The fine fiber nonwoven composite web is bonded to a barrier layer (14) such as a microporous film or a nonwoven web of meltblown fibers.

ABSORBENT ARTICLE HAVING A MULTILAYER BLENDED CORE AND A METHOD OF FORMING

An absorbent article, such as a thin incontinence pad or pantyliner, is disclosed which has an absorbent core formed from multiple layers of blended material for providing protection against involuntary urine loss. A method of forming the absorbent article is also disclosed. The absorbent article includes a liquid permeable bodyside liner, a liquid-impermeable baffle, and first and second absorbents positioned between the liner and the baffle. The first absorbent is a stabilized material containing a superabsorbent and has a predetermined basis weight. The second absorbent is also a stabilized material containing a superabsorbent. The second absorbent is positioned below the first absorbent and has a basis weight that is at least equal to the basis weight of the first absorbent.

PROCESS FOR MANUFACTURING NEEDLED SPUNBONDEDS

Process for manufacturing needled spunbondeds from thermoplastic fibers wherein, prior to the needling, the as-spun web is thermally sealed at the surfaces and provided with a lubricant.

TEXTILE BASE MATERIAL, IN WOVEN OR WEFT KNITTED FABRIC, FOR THERMOBINDING INTERLINING

The base material for thermobinding interlining is constituted of a woven fabric or of a weft knitted fabric or weft knit. According to the invention, at least the weft of the woven fabric or of the weft knit is in synthetic yarns, for example of 35 to 500 dtex, composed of thin filaments having a unit count less than 1.3 dtex. Preferably, these yarns are textured yarns. The thermobinding interlining is constituted of the woven fabric or of the weft knit, on one face of which dots of thermofusible polymer have been deposited.

MOISTURE-ABSORBENT COMPOSITE NONWOVEN FABRIC AND ARTICLE THEREOF

A composite nonwoven fabric can have a population of spunmelt fibers. The population of spunmelt fibers can include a first spunmelt fiber comprising a first polymer and a second polymer. The first polymer is a hydrophilic thermoplastic polymer comprising 65% (w/w) to 90% (w/w), inclusive, hydrophilic segments. The second polymer is a hydrophobic thermoplastic elastomer. The first spunmelt fiber comprises 20% (w/w) to 80% (w/w), inclusive, of the first polymer.

Elastic nonwoven fabric and fiber products manufactured therefrom

Problem to be Solved: To provide an elastic nonwoven fabric with a good elasticity, adequate strength under elongation, good antiblocking property and favorable feeling, suitable for fiber products, at low cost, as well as fiber products using the same. Solution: An elastic nonwoven fabric comprising long elastomeric fiber and nonelastomeric fiber in a weight ratio within a range from 50/50 to 95/5, which has an elongation recovery rate of the elastic nonwoven fabric after 50% elongation equal to or higher than 70%, and a resistance to peel two sheets of the nonwoven fabric apart equal to or lower than the strength of the fabric under 50% elongation; as well as fiber products using the same.

In-line heat treatment of homofilament crimp fibers

Stable, heat-set, helically crimped fibers are economically produced with in-line fabric deposition and heat setting and are uncompacted to retain their loft.

NONWOVEN FABRICS WITH ADDITIVE ENHANCING BARRIER PROPERTIES

Nonwoven fabrics having liquid barrier properties are provided. The nonwoven fabrics may include one or more nonwoven layers, in which one or more of the nonwoven layers may include a liquid-barrier-enhancing-additive (LBEA) comprising an amide. The nonwoven fabrics may be suitable for use in a wide variety of liquid barrier applications, including facemasks, surgical gowns, surgical drapes, lab coats, and barrier components of absorbent articles (e.g., barrier leg cuffs). 1. A nonwoven fabric , comprising: one or more nonwoven layers; wherein at least one of the one or more nonwoven layers comprises a liquid-barrier-enhancing-additive (LBEA) comprising an amide.2. The nonwoven fabric of claim 1 , wherein the LBEA comprises a primary amide claim 1 , a secondary amide claim 1 , a tertiary amide claim 1 , a bis-amide claim 1 , or any combination thereof.3. The nonwoven fabric of claim 1 , wherein the LBEA comprises one or more primary amides comprising erucamide claim 1 , oleamide claim 1 , strearamide claim 1 , behenamide claim 1 , or any combination thereof.4. The nonwoven fabric of claim 1 , wherein the LBEA comprises one or more bis-amide comprising an ethylene bis-amide.5. The nonwoven fabric of claim 1 , wherein the one or more nonwoven layers comprises a plurality of nonwoven layers claim 1 , wherein the plurality of nonwoven layers includes a first nonwoven layer comprising a plurality of first layer fibers having a first average fiber diameter and a second nonwoven layer comprising a plurality of second layer fibers having a second average fiber diameter claim 1 , the first average fiber diameter being larger than the second average fiber diameter.6. The nonwoven fabric of claim 5 , wherein the second nonwoven layer comprises an interior portion of the nonwoven fabric and is directly or indirectly sandwiched between the first nonwoven layer and a third nonwoven layer.7. The nonwoven fabric of claim 6 , wherein the first nonwoven layer claim 6 , the third ...

Nonwoven Materials Containing Polylactic Acid

The present invention relates to the field of nonwoven textile products and is applied to the manufacture of nonwoven fabrics, particularly general nonwoven products, for various applications such as household use, personal and hygienic care. In particular, the present invention is applied to the manufacture of wipes and cleaning cloths. In particular, the invention relates to a nonwoven fabric material comprising at least one layer of long fibres or of continuous filaments of a biodegradable material and at least one layer of fibers of a water-absorbent, characterised in that the biodegradable material comprises polylactic acid in an amount greater than 5% by weight and in that the nonwoven fabric material has a ratio of MD/CD average tensile strength in the range of 1:1 and 4:1.

Process for making a spunbond nonwoven fabric from filaments

Laminating a non-woven, e.g. for absorbent wiping cloths, involves pre-consolidating a filament web layer and bonding a hydrophilic surface layer to it A directly spun filament web is pre-consolidated, e.g. by hot calendering, up to 50% of the maximum obtainable strength. A layer of hydrophilic fibers is then applied, e.g. from a card or by air-laying, and the layers consolidated hydrodynamically by water-jet bonding. The pre-consolidating process gives a maximum free path between bonding points of less than 15 mm. Prior to final consolidation of the layers, the filament layer is deformed to increase its thickness, e.g. by pleating on a hot air drum, and a tenside wetting agent can be applied. Further layers can also be laminated to the structure.

Carbon fibers containing non-woven fibre web for use as gas diffusion electrode substrate in fuel cells

A novel non-woven fibre web comprising a plurality of first fibres orientated in the x-, y-, and optionally z-directions, said first fibres being bonded with a polymeric substance, characterised in that one or more continuous strands are embedded within the sub-surface layer of the non-woven fibre web, each continuous strand comprising a plurality of second carbon fibres, is disclosed. A gas diffusion substrate, electrode and membrane electrode assembly comprising said web is also disclosed, all of which may have application in electrochemical devices, for example in a fuel cell.

МАТЕРИАЛ ОСНОВАНИЯ ДЛЯ ВИНИЛОВОГО НАПОЛЬНОГО ПОКРЫТИЯ

Изобретение относится к материалу основания для винилового напольного покрытия и композиционному продукту, такому как композиционный продукт для кровельного материала, напольного материала или коврового материала. Материал основания включает один или более нетканых слоев волокон, причем каждый нетканый слой волокон состоит из термопластиковых волокон, по меньшей мере, на 50 % масс. относительно общей массы волокон в соответствующем нетканом слое волокон, и сетчатый холст, включающий в себя уточные нити пряжи из стекловолокна или из высокомодульного полиэфирного волокна, при этом уточные нити стеклянной пряжи имеют линейную плотность 28 текс или менее, уточные нити высокомодульной полиэфирной пряжи имеют линейную плотность 50 текс или менее. Изобретение обеспечивает создание материала основания для упругого винилового напольного покрытия, содержащего нетканый слой, включающий в себя термопластиковые волокна, который предотвращает образование морщин в упругом виниловом напольном покрытии ...

СПОСОБ ИЗГОТОВЛЕНИЯ ЛАМИНАТА И ЛАМИНАТ

Группа изобретений относится к изготовлению ламината из нетканого материала. Изготавливают первый слой нетканого материала с более высокой усадочной способностью в направлении его поверхностного растяжения, чем у второго слоя нетканого материала. Первый слой нетканого материала изготавливают по фильерной технологии и/или по фильерно-раздувной технологии из многокомпонентных элементарных нитей и/или из монокомпонентных элементарных нитей. Второй слой изготавливают из многокомпонентных элементарных нитей и/или из монокомпонентных элементарных нитей и составляют или комбинируют его по площади с первым слоем нетканого материала. Агрегат из обоих слоев нетканого материала скрепляют таким образом, чтобы распределить на поверхности агрегата участки скрепления и участки без скрепления. После скрепления активируют усадку первого слоя нетканого материала, так что в результате усадки образуется смещение участков без скрепления второго слоя нетканого материала поперек, в частности перпендикулярно, ...

ВПИТЫВАЮЩИЙ МНОГОСЛОЙНЫЙ МАТЕРИАЛ

Раскрыты впитывающие многослойные материалы, которые включают в себя два слоя спанбонда с целлюлозным слоем, расположенным между слоями спанбонда. Разные слои впитывающего многослойного материала скреплены посредством ультразвуковой обработки и могут дополнительно подвергаться этапу тиснения. Кроме того, впитывающие многослойные материалы могут быть использованы в качестве одноразовых изделий для вытирания среди прочих применений. 3 н. и 17 з.п. ф-лы, 4 табл., 3 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 743 183 C1 (51) МПК B32B 5/26 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК B32B 5/26 (2020.08) (21)(22) Заявка: 2019134207, 16.05.2017 (24) Дата начала отсчета срока действия патента: Дата регистрации: (73) Патентообладатель(и): СЕЛЛАРЗ АБСОРБЕНТ МАТИРИАЛЗ, ИНК. (US) 15.02.2021 (56) Список документов, цитированных в отчете о поиске: US 2012177888 A1, 12.07.2012. US 4784892 A, 15.11.1988. RU 2364668 C2, 20.08.2009. RU 2415659 C1, 10.04.2011. 27.03.2017 US 62/477,242 (45) Опубликовано: 15.02.2021 Бюл. № 5 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 28.10.2019 (86) Заявка PCT: WO 2018/182761 (04.10.2018) Адрес для переписки: 129090, Москва, ул. Б.Спасская, 25, строение 3, ООО "Юридическая фирма Городисский и Партнеры" (54) ВПИТЫВАЮЩИЙ МНОГОСЛОЙНЫЙ МАТЕРИАЛ (57) Реферат: Раскрыты впитывающие многослойные обработки и могут дополнительно подвергаться материалы, которые включают в себя два слоя этапу тиснения. Кроме того, впитывающие спанбонда с целлюлозным слоем, расположенным многослойные материалы могут быть между слоями спанбонда. Разные слои использованы в качестве одноразовых изделий впитывающего многослойного материала для вытирания среди прочих применений. 3 н. и скреплены посредством ультразвуковой 17 з.п. ф-лы, 4 табл., 3 ил. R U 2 7 4 3 1 8 3 (87) Публикация заявки PCT: Стр.: 1 C 1 C 1 US 2017/032955 (16.05.2017) 2 7 4 3 1 8 3 Приоритет(ы): (30) Конвенционный приоритет: R U 16.05 ...

Структурированные перфорированные полотна, ламинаты и способы их изготовления

ПРОЧНОЕ ВПИТЫВАЮЩЕЕ ПРОТИРОЧНОЕ СРЕДСТВО

Перфорированные полотна и способы их изготовления

Maschine zur Herstellung vorkonfektionierter Verstärkungsgelege

WASSERDISPERGIERBARE, FASERIGE, IN DER FORM GLEICHE VERBUNDVLIESSTOFFE

Strukturiertes Fasermaterial und seine Herstellung

ELASTISCHE BANDAGE ZUR FIXIERUNG VON KOERPERTEILEN UND VERFAHREN ZU IHRER HERSTELLUNG

WEB MATERIAL

Particle-containing meltblown webs

A meltblown web having meltblown fibers and particles is provided. The particles are embedded in and retained by one or more meltblown fibers as a result of surface penetration of the particles into one or more meltblown fibers. The surface penetration of any particle into one or more meltblown fibers is generally slight thus leaving a substantial amount of the surface area of any particle available for interaction with any medium to which the web is exposed.

Hand and surface cleaning wet wipe and method of manufacturing

A composite product for one-piece shoe counters

NON-WOVEN MICROFIBRE WEB

Water dispersible nonwoven fabric material

Non-woven multi-layered fabric materials which include two external layers made of continuous filaments of a water-soluble or water dispersible polymer having an internal layer of a water-absorbent, flushable material are provided. Methods for making such non-woven multi-layered fabric materials, are also provided.

Reinforced textile support with cellulosic fiber multi-filaments, particularly for bituminous membranes

A reinforced textile support, particularly for bituminous membranes, made of at least one layer of polyester non woven web and continuous high modulus reinforcement yarns longitudinally set with respect to said layer. The reinforcement yarns consist of cellulosic fibre multi-filaments of the Lyocell type. The assembly is bound by mechanical needling or water entangling, stabilised by means of thermal treatment at a temperature of 200-250° C. and consolidated by means of a chemical binder.

COMPOSITE FIBER HAVING ELASTOMER AND METHOD FOR MAKING THE SAME, AND A SUBSTRATE HAVING THE COMPOSITE FIBER AND METHOD FOR MAKING THE SAME

A composite fiber having elastomer and method for making the same, and a substrate having the composite fiber and method for making the same are provided. The composite fiber includes a first composition and a second composition. The first composition is thermoplastic non-elastomer, and the second composition is thermoplastic elastomer (TPE). The second composition is in an amount of 5 to 70 weight % of the composite fiber. The first composition and the second composition are alternately distributed in a circumference of a cross-section of the composite fiber, and the length of the second composition is less than 50% of the total length of the circumference. The TPE can be dispersed uniformly and increase the adhesion between fibers, and the segmented fiber cross-section thereof further prevents the TPE from becoming too adhesive and affecting the processing during the fabrication of fibers and non-woven fabric substrates. Therefore, the non-woven fabric substrate or artificial leather made from the composite fiber has excellent textile feeling and physical properties. 1. An artificial leather substrate , comprising a plurality of composite fibers , wherein each of the composite fibers comprises a first composition and a second composition , the first composition is thermoplastic non-elastomer , the second composition is thermoplastic elastomer (TPE) , and the second composition is in an amount of 5 to 70 weight % of the composite fiber; the first composition and the second composition are alternately distributed in a circumference of a cross-section of each of the composite fibers , and the length of the second composition is less than 50% of the total length of the circumference; and cross-points between the composite fibers are elastic bonding points formed by softening the second composition , and the composite fibers are in an amount of 5 to 75 weight % of the substrate.2. The substrate according to claim 1 , further comprising a plurality of mixed fibers claim ...

Nonwoven wipe with bonding pattern

A nonwoven wipe has multiplicity of fibers, bonded portions, and unbonded portions. The bonded portions are spaced apart from one another, each bonded portion comprises portions of the fibers that are bonded together, and each bonded portion has a thickness extending perpendicularly between opposite faces of the nonwoven wipe. Each unbonded portion comprises portions of the fibers that are not bonded together, and each unbonded portion has a thickness extending perpendicularly between the opposite faces of the nonwoven wipe. The thicknesses of the unbonded portions is greater than the thicknesses of the bonded portions. The bonded portions are sized and arranged for providing a desirable balance of properties.

PROCESS FOR PRODUCING WOVEN-NON-WOVEN PARTICULARLY SOFT, RESISTANT AND WITH A VALUABLE APPEARANCE

A manufacturing plant for non-woven web including: a hydro-embossing device and a thermo-embossing device for treating the non-woven web, a drive system for advancing the non-woven web along the hydro-embossing device and the thermo-embossing device system, and a control and command unit operatively connected to the hydro-embossing device and the thermo-embossing device, such that respective treatments are carried out on dedicated portions of the non-woven web. 1. A manufacturing plant for non-woven web comprising:a treatment system including at least one hydro-embossing device and at least one thermo-embossing device,a drive system for advancing the non-woven web along said treatment system, anda control and command unit operatively connected to each of said at least one hydro-embossing device and at least one thermo-embossing device, wherein the control and command unit operates the treatment system to cause hydro-embossing device to treat a first portion of the non-woven web and the thermo-embossing device to treat a second portion of the non-woven web wherein the first portion and second portion do not overlap.2. The plant according to claim 1 , wherein the control and command unit includes a video camera system monitoring the non-woven web moving along the treatment system and images generated by the video camera system of the web are analyzed by the control and command unit and used to continuously monitor and adjust the advancement of the web by the drive system.3. The plant according to claim 1 , further comprising a plurality of sensors positioned along a path of the non-woven web through the treatment system claim 1 , wherein the sensor are configured to detect stretching of the non-woven web and generate a stretching signal provided to the control and command unit.4. The plant according to claim 1 , further comprising an alignment device configured to align the non-woven web with a defined path through the treatment system.5. The plant according to claim ...

METHODS FOR MAKING PATTERNED APERTURED WEBS

A method of producing a patterned apertured web is provided. The method comprises providing a web having a central longitudinal axis. The web comprises a plurality of overbonds extending substantially parallel to the central longitudinal axis. The method comprises conveying the web in a machine direction that is substantially parallel to a direction of extension of the central longitudinal axis of the web. The method comprises stretching the web in a cross-machine direction to cause at least some of the overbonds to at least partially rupture and at least partially form patterned apertures in the web. At least some of the patterned apertures have Absolute Feret Angles, according to the Aperture Test herein, of at least about 20 degrees. At least some of the patterned apertures have an Aspect Ratio, according to the Aperture Test herein, in the range of about 2:1 to about 6:1. 1. A patterned apertured web comprising:a plurality of land areas in the patterned apertured web; anda plurality of apertures defined in the patterned apertured web, wherein at least some land areas of the plurality of land areas surround at least some apertures of the plurality of apertures;wherein the patterned apertured web has an Effective Open Area in the range of about 3% to about 30%, according to the Aperture Test herein;wherein the patterned apertured web has a plurality of Interaperture Distances, according to the Aperture Test herein, wherein the Interaperture Distances have a distribution having a median and a mean, and wherein the mean is different than the median;wherein the patterned apertured web comprises at least two layers;wherein the at least two layers comprise a first layer and a second layer;wherein the second layer has a different hydrophobicity than the first layer;wherein the patterned apertured web comprises bicomponent spunbond fibers, bicomponent staple fibers, meltblown fibers, nanofibers, and/or crimped fibers;wherein the bicomponent spunbond fibers, the ...

PRE-STRAINED LAMINATES AND METHODS FOR MAKING THE SAME

A laminate comprising a first nonwoven layer comprising a plurality of apertures and a second nonwoven layer is provided. One of the first and second nonwoven layers is a pre-strained layer and is joined to the other one of the first and second nonwoven layers. The other one of the first and second nonwoven layers is a non-pre-strained layer. The pre-strained layer and the non-pre-strained layer together form a three-dimensional laminate. 1. A diaper comprising: a plurality of land areas in the patterned apertured nonwoven material; and', 'a plurality of apertures defined in the patterned apertured nonwoven material, wherein at least some land areas of the plurality of land areas surround at least some apertures of the plurality of apertures;', 'wherein the plurality of apertures are non-homogeneous in a repeat unit such that at least two apertures of the plurality of apertures have a different size or a different shape;', 'wherein the patterned apertured nonwoven material has an Effective Open Area in the range of about 3% to about 30%, according to the Aperture Test herein;', a first nonwoven layer; and', 'a second nonwoven layer;', 'wherein the plurality of apertures are formed through the first nonwoven layer and the second nonwoven layer;, 'wherein the patterned apertured nonwoven material comprises, 'wherein the plurality of apertures each comprise a perimeter;', 'wherein portions of the perimeter of at least some apertures of the plurality of apertures comprise melt-fused portions;', 'wherein a first group of apertures of the plurality of apertures forms a heart shape;', 'wherein a second group of apertures of the plurality of apertures at least partially surrounds the heart shape; and', 'wherein at least one land area of the plurality of land areas is present intermediate the first group of apertures and the second group of apertures;, 'a patterned apertured nonwoven material comprising, 'a liquid permeable topsheet comprisinga liquid impermeable backsheet; ...

ABSORBENT ARTICLES COMPRISING GARMENT-FACING LAMINATES

An absorbent article is provided. The absorbent article comprises a liquid permeable topsheet on a wearer-facing side of the absorbent article and a garment-facing laminate on a garment-facing side of the absorbent article. The garment-facing laminate comprises a first nonwoven layer and a second layer joined to the first nonwoven layer. The first nonwoven layer comprises a plurality of apertures. At least 3 of the plurality of apertures in a repeat unit have a different Effective Aperture Area, according to the Aperture Test herein, a different shape, or a different Absolute Feret Angle, according to the Aperture Test herein. The absorbent article comprises an absorbent core disposed at least partially intermediate the liquid permeable topsheet and the garment-facing laminate. 1. A patterned apertured web comprising:a plurality of land areas in the patterned apertured web; anda plurality of apertures defined in the patterned apertured web, wherein at least some land areas of the plurality of land areas surround at least some apertures of the plurality of apertures;wherein the patterned apertured web has an Effective Open Area in the range of about 3% to about 30%, according to the Aperture Test herein;wherein the patterned apertured web has a plurality of Interaperture Distances, according to the Aperture Test herein, wherein the Interaperture Distances have a distribution having a median and a mean, and wherein the mean is different than the median;wherein the plurality of apertures comprise a first set of apertures defining a first shape and a second set of apertures defining a second shape;wherein the first shape is positioned within the second shape;{'sup': 2', '2, 'wherein at least some apertures of the plurality of apertures have an Effective Aperture Area in a range of about 0.3 mmto about 15 mm, according to the Aperture Test herein;'}wherein at least one land area of the plurality of land areas separates the first shape from the second shape, wherein the ...

MELTBLOWN-SPUNBONDED-MELTBLOWN LAMINATED FABRIC

There is disclosed a laminated, nonwoven fabric and a process for producing such a laminated, nonwoven fabric having desirable fluid holding and fluid release characteristics. The process provides that two sheets of meltblown fiber fabric are produced on forming wire assemblies, cooled at a cooling area, and are then laminated on opposite sides of a sheet of spunbonded fibers using to form the laminated, nonwoven fabric. 1. A process for making a laminated , nonwoven fabric having a fluid retention effectiveness and favorable fluid delivery uniformity characteristics , the process comprising:forming a first meltblown layer from extruded polymer fiber having a preselected fiber diameter range on a first forming wire assembly;cooling the first meltblown layer to a temperature below its melting point;providing a spunbonded layer of fibers composed of a polymer having a preselected fiber diameter range larger than the fiber diameter of the first layer;cooling the spunbonded layer to a temperature below its melting point;forming a second meltblown layer from extruded polymer fiber having the preselected fiber diameter range of the first layer on a second forming wire assembly;cooling the second layer to a temperature below its melting point; andlaminating the spunbonded layer between the first and second meltblown layers on a thermal calendar apparatus to form a single laminated, nonwoven fabric.2. The process for making a laminated claim 1 , nonwoven fabric of claim 1 , wherein the polymer used in the first and second layers of meltblown fiber and the layer of spunbonded fibers is the same.3. The process for making a laminated claim 2 , nonwoven fabric of claim 2 , wherein the polymer comprises homopolymer polypropylene.4. The process for making a laminated claim 1 , nonwoven fabric of claim 1 , further comprising forming a three-dimensional pattern on one surface of each of the first and second layers of meltblown polymer fibers with the three-dimensional pattern ...

Soft Nonwoven Fabric and Method of Manufacturing Thereof

Fabrics having a desirable softness and exhibiting a low lint level are provided. The fabrics include an embossed bonding pattern, in which the embossed bonding pattern includes a plurality of icons (e.g., geometric shapes, caricatures, etc.). The plurality of icons may be defined by a plurality of perimeter bonding points. Additionally, from 1 to about 10 internal bonding points may be located within at least one of the plurality of icons. 114-. (canceled)15. An embossing roll , comprising: a cylindrical base surface area and a plurality of embossing protrusions extending outwardly from the cylindrical base surface and defining an embossing protrusion pattern; the embossing protrusion pattern comprising a (i) a plurality of icons , each of the plurality of icons being defined by a first group of embossing protrusions comprising a plurality of perimeter embossing protrusions and (ii) a plurality of internal embossing protrusions located within at least one of the plurality of icons;wherein the plurality of icons includes a first discrete icon comprising a first plurality of perimeter embossing protrusions and a second discrete icon comprising a second plurality of perimeter embossing protrusions.16. The embossing roll according to claim 15 , wherein the plurality of icons each comprise an icon area from about 1 mmto about 50 mm.17. The embossing roll according to claim 15 , wherein the first discrete icon comprises a first icon area and the second discrete icon comprises a second icon area; wherein the first icon area is different than the second icon area.18. The embossing roll according to claim 15 , wherein each of the plurality of icons include from 2 to 5 internal embossing protrusions.19. The embossing roll according to claim 15 , wherein the embossing roll comprises a total embossing protrusion area comprising from about 3% to about 25% of a total area of the embossing roll.20. (canceled)21. The embossing roll according to claim 15 , wherein each of the ...

NONWOVEN FABRIC WEB

A nonwoven fabric web having an excellent sound absorption coefficient in a frequency range from 800 Hz to 1000 Hz when used as a sound absorbing member for a vehicle exterior. The nonwoven fabric web including a nonwoven fabric having meltblown fibers and binder fibers arranged so as to be confounded with the meltblown fibers and fused with the meltblown fibers at some of the confounding points at the very least, the weight per unit area of the nonwoven fabric being from 400 g/mto 1500 g/m, and the flexural rigidity of the nonwoven fabric being from 2.0 N/50 mm to 20.0 N/50 mm. 1. A nonwoven fabric web provided with a nonwoven fabric having:meltblown fibers; andbinder fibers arranged so as to be confounded with the meltblown fibers and fused with the meltblown fibers at some of the confounding points at the very least;{'sup': 2', '2, 'the weight per unit area of the nonwoven fabric being from 400 g/mto 1500 g/m, and the flexural rigidity of the nonwoven fabric being from 2.0 N/50 mm to 20.0 N/50 mm, as measured according to the three-point flexural test (method A) of JIS K7074 (1998).'}2. The nonwoven fabric web according to claim 1 , wherein the content of the binder fibers is from 30 parts by mass to 85 parts by mass per 100 parts by mass of a total amount of the meltblown fibers and the binder fibers.3. The nonwoven fabric web according to having a solidity of at least 15%.4. The nonwoven fabric web according to any claim 3 , wherein the nonwoven fabric is a laminate of a plurality of nonwoven fabrics provided with the meltblown fibers and the binder fibers.5. The nonwoven fabric web according to claim 4 , wherein the nonwoven fabric is a laminate of first and second nonwoven fabrics provided with the meltblown fibers and the binder fibers claim 4 , with the first nonwoven fabric having a weight per unit area of at least 400 g/mand less than 1500 g/m claim 4 , and the second nonwoven fabric having a weight per unit area of greater than 0 g/mand at most 400 g/m.6 ...

Laminated nonwoven fabric

An object of the present invention is to provide a nonwoven fabric having high tensile strength and high tear strength. The laminate nonwoven fabric of the present invention is a laminated nonwoven fabric obtained by thermally press-contacting a thermoplastic continuous fiber layer as an outer layer with both surfaces of an interlayer, wherein the ratio (F1/F2) between the average oblateness (F1) of the thermoplastic continuous fiber present on the surface side and the average oblateness (F2) of the thermoplastic continuous fiber present on the inner side is 1.20 or more.

EXTENSIBLE NONWOVEN FABRIC

Extensible nonwoven fabrics having improved elongation, extensibility, abrasion resistance and toughness. In particular, embodiments of the invention are directed to extensible spunbond fabrics comprising a polymeric blend of a metallocene catalyzed polypropylene, polyethylene, and a third polymer component. 1. A calendering roll configured for thermally bonding fibers of a nonwoven fabric to each other to define a coherent web , the calendering roll comprising a pair of cooperating rolls in which one of the rolls comprises a plurality of 3-dimensional geometric cylindrical or rod shaped bonding patterns extending in a cross-direction of said roll , said bonding patterns having a length that is from about 1.5 to 10 times the width.2. The roll of claim 1 , wherein the cross-directional cylindrical or rod shaped bond patterns have an aspect ratio defined by a length of the bond pattern divided by the width of the bond pattern that is from about 2 to 10.3. The roll of claim 1 , wherein the aspect ratio of the bond patterns is from about 4 to 8.4. The roll of claim 1 , wherein the bond patterns cover from about 8 to 25% of the surface area of the calendering roll.5. The roll of claim 1 , wherein the bond patterns cover from about 8 to 20% of the surface area of the calendering roll.6. The roll of claim 1 , wherein the bond patterns cover from about 8 to 12% of the surface area of the calendering roll.7. A system for preparing a nonwoven fabric claim 1 , the system comprising:a first polymer source configured to provide a stream of molten or semi-molten resin;a first spin beam in fluid communication with the first polymer source, the spin beam configured to extrude and draw a plurality of continuous filaments;a collection surface disposed below an outlet of the spin beam onto which the continuous filaments are deposited to form a nonwoven fabric;a calender roll positioned downstream of the first spin beam, the calender roll comprising a pair of cooperating rolls in which ...

Patterned apertured webs and methods for making the same

A disposable absorbent article having a topsheet, a backsheet, and an absorbent core disposed therebetween is described. The topsheet includes a plurality of apertures arranged in a first zone and a first plurality of structures which are disposed adjacent to the first plurality of apertures. The plurality of apertures have an Effective Aperture Area of from between 0.5 mm2 to about 8 mm2 as measured by the Aperture/Feret Angle test as described herein, and the topsheet has a top layer and a lower layer, wherein the top layer is more hydrophobic than the lower layer.

CERAMIC-COATED FIBERS INCLUDING A FLAME-RETARDING POLYMER, AND METHODS OF MAKING NONWOVEN STRUCTURES

Dimensionally-stable fibrous structures including ceramic-coated melt-blown nonwoven fibers made of a flame-retarding polymer and processes for producing such fire-resistant nonwoven fibrous structures. The melt-blown fibers include poly(phenylene sulfide) in an amount sufficient for the nonwoven fibrous structures to pass one or more fire-resistance test, e.g. UL 94 V0, FAR 25.853 (a), FAR 25.856 (a), and CA Title 19, without any halogenated flame-retardant additive, and have a ceramic coating. The melt-blown fibers are subjected to a controlled in-flight heat treatment at a temperature below a melting temperature of the poly(phenylene sulfide) immediately upon exiting from at least one orifice of a melt-blowing die, in order to impart dimensional stability to the fibers. The nonwoven fibrous structures including the in-flight heat-treated melt-blown fibers exhibit a Shrinkage less than a Shrinkage measured on a nonwoven fibrous structure including only fibers not subjected to the controlled in-flight heat treatment operation, generally less than 15%. 1. A fire-resistant ceramic-coated nonwoven fibrous structure comprising:a plurality of melt-blown fibers comprising poly(phenylene sulfide) in an amount sufficient for the nonwoven fibrous structure to exhibit fire-resistance by passing one or more test selected from UL 94 V0, FAR 25.853 (a), FAR 25.856 (a), AITM20007A, and AITM 3-0005, without any halogenated flame-retardant additive; anda ceramic coating on a surface of the plurality of melt-blown fibers, wherein the nonwoven fibrous structure is dimensionally stable and exhibits a Shrinkage less than 15%, optionally wherein the plurality of melt-blown fibers do not contain a nucleating agent in an amount effective to achieve nucleation, optionally wherein the ceramic coating comprises a ceramic selected from the group consisting of a metal oxide, a metal nitride, a metal carbide, a metal oxynitride, a metal oxyboride, or a combination thereof.2. The nonwoven ...

FIBER ASSEMBLY

A fiber assembly that is obtained by melt-spinning a thermoplastic resin, in which a fiber diameter of the fiber assembly has a median diameter of 1 μm or less, and a melt viscosity of the fiber assembly is 100 mPa·s or more and 1000 mPa·s or less. 1. A fiber assembly that is obtained by melt-spinning a thermoplastic resin ,wherein a fiber diameter of the fiber assembly has a median diameter of 1 μm or less, anda melt viscosity of the fiber assembly is 100 mPa·s or more and 1000 mPa·s or less.2. The fiber assembly of claim 1 ,wherein the melt viscosity of the fiber assembly is 100 mPa·s or more and 1000 mPa·s or less in a temperature range of 400° C. or lower.3. The fiber assembly of claim 1 ,wherein the melt viscosity of the fiber assembly is 100 mPa·s or more and 1000 mPa·s or less in a temperature range of 10° C. or higher from a melting point of the thermoplastic resin.4. The fiber assembly of claim 1 ,wherein in a case where T is a melting temperature of the fiber assembly,{'sup': 11', '−3.6', '12', '−3.6, 'the melt viscosity of the fiber assembly is 10TmPa·s or more and 10TmPa·s or less.'}5. The fiber assembly of claim 1 ,{'sup': 11', '−3.6', '12', '−3.6, 'wherein in a case where T is a melting temperature of the fiber assembly, the melt viscosity of the fiber assembly is 200 mPa·s or more and 600 mPa·s or less, and 2×10TmPa·s or more and 10TmPa·s or less in a temperature range of 10° C. or higher and 400° C. or lower from the melting point of the thermoplastic resin.'}6. The fiber assembly of claim 1 ,{'sup': 11', '−3.6', '12', '−3.6, 'wherein in a case where T is the melting temperature of the fiber assembly, the melt viscosity of the fiber assembly is 200 mPa·s or more and 600 mPa·s or less, and 2×10TmPa·s or more and 10TmPa·s or less in a temperature range of 10° C. or higher and 350° C. or lower from the melting point of the thermoplastic resin.'}7. The fiber assembly of claim 1 ,{'sup': 3', '3, 'wherein the fiber assembly has a density of 0.01 g/cmor ...

Process for Making Fibrous Structures

Processes for making fibrous structures and more particularly processes for making fibrous structures comprising filaments are provided.

Nonwoven web material including fibers formed of rcecycled polyester, and methods for producing

A nonwoven web material including fibers formed of a polyolefin and a polyester is disclosed. The fibers may include fine fibers produced by, for example, a meltblowing process. The polyolefin may be polypropylene and the polyester may be polylactic acid. The polylactic acid may be obtained and included by recycling scrap nonwoven material containing a polylactic acid component, hydrolyzing the polylactic acid component to reduce its viscosity, blending the hydrolyzed polylactic acid with a polyolefin resin, and melt-spinning the blended material to form fibers. A related process is disclosed.

Thermally Stable Nonwoven Web Comprising Meltblown Blended-Polymer Fibers

A thermally stable nonwoven web including blended-polymer meltblown fibers containing a blend of poly (butylene terephthalate) and poly (ethylene terephthalate).

ZONAL PATTERNED APERTURED WEBS, LAMINATES, AND METHODS FOR MAKING THE SAME

A patterned apertured web comprises a layer comprising a plurality of apertures and a plurality of land areas. The plurality of apertures comprise a first set of apertures in a first zone and a second set of apertures in a second zone. The first set of apertures in the first zone have Interaperture Distances, according to the Aperture Test herein. The Interaperture Distances of the first set of apertures have a first distribution having a first mean and a first median. The first mean is different than the first median. The second set of apertures in the second zone have Interaperture Distances, according to the Aperture Test herein. The Interaperture Distances of the second set of apertures have a second distribution having a second mean and a second median. The second mean is different than the second median. The first and second sets of apertures have different patterns. 1. A patterned apertured web comprising: a first plurality of land areas; and', 'a first plurality of apertures, wherein at least some of the first plurality of land areas surround at least some of the first plurality of apertures;', 'wherein the first plurality of apertures of the first zone have a plurality of Interaperture Distances, according to the Aperture Test herein, wherein the Interaperture Distances of the first zone have a first distribution having a first mean and a first median, and wherein the first mean is greater than the first median by at least 4%; and', 'wherein the first arrays comprise an Effective Open Area in the range of about 5% to about 50%, according to the Aperture Test herein; and, 'a plurality of first arrays forming a first zone in the patterned apertured web, wherein at least some of the first arrays comprise a second plurality of land areas; and', 'a second plurality of apertures, wherein at least some of the second land areas surround at least some of the second plurality of apertures;', 'wherein the second plurality of apertures of the second zone have a ...

Nonwoven thermal bonding pattern with low fuzz

A nonwoven comprising a pattern of thermal bonds with anti-fuzz properties according to at least three and preferably all four of the following conditions: a) the pattern comprises thermal bonds disposed in parallel rows having a pitch angle (P) of from 0.5° to 15° relative to the machine direction or the cross-machine direction; and/or b) the bonding area of all the thermal bonds ranges from 17% to 30% of the area of the nonwoven, and/or c) the pattern comprises larger bonds and smaller bonds having different individual area, and/or d) the pattern comprises elongated bonds having different major directions.

Methods of making composite nonwoven webs

Disclosed herein are improvements to processes and equipment for the manufacture of composite nonwoven webs comprising a mixture of two or more different fibers and formed from at least two streams of air-entrained fibers. Adjacent the perimeter of an exit port of one of the fiber streams are located a series of spaced tabs and apertures. As a first stream of air-entrained fibers pass the series of tabs and apertures, vortices are formed therein. When mixed with a second stream of air-entrained fibers, the vortices within the first stream of fibers causes increased mixing of the fibers, helping to drive the first fibers deeper into the second stream of air-entrained fibers.

SOUND ABSORPTION AND INSULATION PAD FOR VEHICLE AND MANUFACTURING METHOD THEREOF

Disclosed are, inter alia, a sound absorption and insulation material including a polyester hollow fiber, a polyester low-melting-point composite fiber and a polyester base fiber, a sound absorption and insulation pad for a floor including the same, and a manufacturing method thereof for improving the elasticity and sound absorption and insulation performance of the sound absorption and insulation material. The sound absorption and insulation material is an environmentally friendly material that can reduce discomfort due to the generation of volatile organic compounds (VOCs) and the emission of toxic gases during combustion. Also, the sound absorption and insulation pad including the sound absorption and insulation material can exhibit superior sound absorption performance, sound insulation performance and actual vehicle performance compared to a conventional sound absorption and insulation pad of the same thickness. 1. A sound absorption and insulation material , comprising:a hollow fiber;a low-melting-point composite fiber; anda base fiber.2. The sound absorption and insulation material of claim 1 , comprising:an amount of 10 to 50 wt % of the hollow fiber;an amount of 20 to 40 wt % of the low-melting-point composite fiber; andan amount of 20 to 50 wt % of the base fiber,all wt % are based on the total weight of the sound absorption and insulation material.3. The sound absorption and insulation material of claim 1 , wherein the hollow fiber has a fineness of about 5 to 15 denier claim 1 , a fiber length of 50 to 70 mm claim 1 , a hollow core ratio of 25 to 29% claim 1 , a bulkiness of 12 claim 1 ,300 to 12 claim 1 ,800 cm/g and 4 to 10 crimps/inch.4. The sound absorption and insulation material of claim 1 , wherein the low-melting-point composite fiber has a fineness of 3 to 5 denier claim 1 , a fiber length of 40 to 60 mm and a melting point of 100 to 200° C.5. The sound absorption and insulation material of claim 1 , wherein the base fiber has a fineness of 5 to ...

ABSORBENT MATERIAL

An absorbent material, such as a non-woven web or a tissue paper, includes continuous filaments and short fibers, the short fibers including natural and/or synthetic fibers or staple fibers. The absorbent material exhibits an absorbency speed of equal to or less than 2 s and a weight loss when washed of equal to or less than 5%. The absorbent material can be incorporated into a wipe. 1. An absorbent material , comprising continuous filaments and short fibers , the short fibers comprising pulp fibers and/or staple fibers ,wherein the absorbent material exhibits an absorbency speed when measured with ISO 12625-8, of equal to or less than 2 s and a weight loss when washed in the Washing Machine Test as described herein, of equal to or less than 5%.2. The absorbent material according to claim 1 , wherein the absorbent material further exhibits an absorbency of at least 5 g/g.3. The absorbent material according to claim 1 , wherein the pulp fibers are present in an amount of at least 5 wt % of the absorbent material.4. The absorbent material according to . wherein the continuous filaments have a diameter of 15 μm or less.5. The absorbent material according to claim 1 , further comprising a wet strength agent in the amount of claim 1 , 0.2-1.0 wt %.6. The absorbent material according to claim 1 , wherein the staple fibers have a length of 5-20 mm.7. The absorbent material according to claim 1 , wherein the staple fibers are claim 1 , at least one of claim 1 , polylactic fibers claim 1 , regenerated cellulose fibers claim 1 , pulp fibers claim 1 , cotton fibers claim 1 , hemp fibers claim 1 , flax fibers claim 1 , polypropylene fibers claim 1 , polyester fibers claim 1 , or bicomponent fibers.8. The absorbent material according to claim 1 , wherein the natural fibers are claim 1 , at least one of claim 1 , pulp fibers claim 1 , cotton fibers claim 1 , hemp fibers claim 1 , or flax fibers.9. The absorbent material according to claim 1 , wherein continuous filaments are ...

SOFT NONWOVEN FABRIC AND METHOD OF MANUFACTURING THEREOF

Fabrics having a desirable softness and exhibiting a low lint level are provided. The fabrics include an embossed bonding pattern, in which the embossed bonding pattern includes a plurality of icons (e.g., geometric shapes, caricatures, etc.). The plurality of icons may be defined by a plurality of perimeter bonding points. Additionally, from 1 to about 10 internal bonding points may be located within at least one of the plurality of icons. 1. A fabric , comprising:a nonwoven web comprising an embossed bonding pattern,the embossed bonding pattern comprising (i) a plurality of icons, each of the plurality of icons being defined by a plurality of perimeter bonding points and (ii) from 1 to about 5 internal bonding points located within at least one of the plurality of icons.2. The fabric according to claim 1 , wherein the plurality of icons each comprise an icon area from about 1 mmto about 50 mm.3. The fabric according to claim 1 , wherein the plurality of icons include a first icon comprising a first icon area and a second icon comprising a second icon area; wherein the first icon area is different than the second icon area.4. The fabric according to claim 1 , wherein each of the plurality of perimeter bonding points comprises an individual perimeter bonding point area comprising from about 0.01 to about 0.25 mmand wherein each of the internal bonding points comprise an individual internal bonding point area comprising from about 0.01 to about 0.25 mm.5. The fabric according to claim 1 , wherein each of the plurality of perimeter bonding points comprise an individual perimeter bonding point area and each of the internal bonding points comprise an individual internal bonding point area; wherein the individual perimeter bonding point area is different than the individual internal bonding point area.6. The fabric according to claim 1 , wherein each of the icons include from 1 to about 3 internal bonding points.7. The fabric according to claim 1 , wherein the nonwoven ...

Constructs for distribution of fill material

In some embodiments, the inventive subject matter is directed to an arrangement of discrete elements of fill material on a substrate consisting of a sheet material wherein the discrete elements are fixed relative to the sheet material by pilings, fusion, and/or entanglement to fix the insulating elements in a layered arrangement over the sheet material. A second sheet of material may be used to create a sandwiched assembly of the discrete elements. In some embodiments, the inventive subject matter is generally directed to discrete elements of fill material that are engaged together to form a cohesive sheet-like or layered arrangement of the elements.

CARRIER MATERIAL FOR VINYL FLOOR COVERING

A carrier material for vinyl floor covering is provided where the carrier includes a nonwoven layer of fibers containing thermoplastic fibers and a scrim for eliminating wrinkles in the vinyl floor covering. The scrim includes weft threads configured to match the shrinkage in cross machine direction of the nonwoven layer of fibers including thermoplastic fibers for preventing the formation of printing errors and/or surface irregularities in the vinyl floor covering. 1. A carrier for vinyl floor coverings comprising:a nonwoven layer of fibers comprising thermoplastic fibers, anda scrim comprising weft threads, wherein the shrinkage of the weft threads is configured to match the shrinkage in cross machine direction of the nonwoven layer of fibers comprising thermoplastic fibers.2. The carrier for vinyl floor coverings according to claim 1 , wherein the scrim comprised in the carrier has a free shrinkage in weft direction at a temperature in the range of 140° C. to 170° C. that differs at most by 1.00% from the free shrinkage in cross machine direction of the nonwoven layer of fibers comprised in the carrier at the same temperature to prevent buckling of the weft threads of the scrim.3. The carrier for vinyl floor coverings according to claim 1 , wherein the scrim has a free shrinkage claim 1 , at a temperature of 150° C. and a residence time of 1 minute claim 1 , of at least 0.01%.4. A method comprising: producing a roofing membrane comprising the carrier according to .5. A method comprising: producing a roofing underlayment sheet comprising the carrier according to .6. The carrier for vinyl floor coverings according to claim 1 , wherein the scrim comprised in the carrier has a free shrinkage in weft direction at a temperature in the range of 140° C. to 170° C. that differs at most by 0.50% from the free shrinkage in cross machine direction of the nonwoven layer of fibers comprised in the carrier at the same temperature to prevent buckling of the weft threads of the ...

PROCESS FOR FORMING A HIGH LOFT, NONWOVEN WEB EXHIBITING EXCELLENT RECOVERY

A process for forming a high loft, nonwoven web exhibiting excellent recovery. 1. A process for forming a high loft , nonwoven web , comprising the steps of:a) introducing a molten polymer to a die having a plurality of nozzles;b) emitting said molten polymer through said plurality of nozzles to form a plurality of filaments;c) using air streams to facilitate movement and drawing of said plurality of filaments;d) directing said filaments towards a pair of moving surfaces located at a distance of from between about 10 cm to about 150 cm from said plurality of nozzles, and said pair of moving surfaces forming a convergent passage having an entry and an exit;e) depositing said plurality of filaments into said entry of said convergent passage;f) routing said plurality of filaments through said convergent passage from said entry to said exit and between said pair of moving surfaces in a machine direction to form a 3-dimensional structure with said filaments transformed into fibers oriented in the x, y and z directions; and{'sup': 2', '2, 'g) bonding said 3-dimensional structure to form a high loft, nonwoven web having a thickness of less than about 250 millimeters and a basis weight ranging from between about 50 g/mto about 3,000 g/m, and a vertical cross-section of said high loft, nonwoven web, when taken parallel to said machine direction, exhibiting a plurality of snugly stacked, approximately V, U or C-shaped structures, with each V, U or C-shaped structure having an apex facing in said machine direction, and said high loft, nonwoven web having a recovery value ranging from between about 20% to about 99% after being compressed under a pressure of 0.25 psi for a time period of 30 minutes.'}2. The process of wherein said 3-dimensional structure is bonded using thermal bonding claim 1 , through air bonding claim 1 , oven bonding claim 1 , chemical bonding claim 1 , wet bonding claim 1 , mechanical bonding or hydro-mechanical bonding.3. The process of further comprising ...

LAMINATE AND METHOD OF MAKING SAME

A laminate is made by first making by melt-blowing or spunbonding of multicomponent, thermoplastic, and endless filaments a first nonwoven layer lying generally in a plane and having a predetermined shrinkage capacity or potential parallel to the plane and making of thermoplastic and endless filaments a second nonwoven layer also lying generally in a respective plane and having a shrinkage capacity or potential that is smaller than that of the first nonwoven layer. The two layers are directly juxtaposed flatly on each other, and the directly juxtaposed first and second layer are bonded together only at bonded regions while leaving an array of unbonded regions distributed over a surface of the two bonded-together nonwoven layers. Then only the first nonwoven layer is shrunk so that the second layer bunches in the unbonded regions and is there raised transverse to a plane of the bonded-together layers. 1. A method of making a laminate , the method comprising the steps of:making by melt-blowing or spunbonding of multicomponent, thermoplastic, and endless filaments a first nonwoven layer lying generally in a plane and having a predetermined shrinkage capacity or potential parallel to the plane;making of thermoplastic and endless filaments a second nonwoven layer also lying generally in a respective plane and having a shrinkage capacity or potential that is smaller than that of the first nonwoven layer;directly juxtaposing one of the first and second layers flatly on the other of the first and second layers;bonding the directly juxtaposed first and second layer together only at bonded regions while leaving an array of unbonded regions distributed over a surface of the two bonded-together nonwoven layers; and thereaftershrinking the first nonwoven layer so that the second layer bunches in the unbonded regions and is there raised transverse to a plane of the bonded-together layers.2. The laminate-making method defined in claim 1 , herein the different shrinkage capacities ...

Reinforced thermoplastic articles, compositions for the manufacture of the articles, methods of manufacture, and articles formed therefrom

A composition for the manufacture of a porous, compressible article, the composition comprising a combination of: a plurality of reinforcing fibers; a plurality of thermoplastic fibers; optionally a plurality of polymeric binder fibers; and continuous spaced carrier fibers; wherein the polymeric binder fibers have a melting point lower than the thermoplastic fibers; methods for forming the porous, compressible article; and articles containing the porous, compressible article. An article comprising a thermoformed composite is also disclosed, wherein the composite is not supported by a scrim layer and the composite exhibits improved conformation to fine mold details to which the scrim layer could not accurately conform.

Non-woven web having hydro and thermal embossments

A non-woven web including: a first surface area of the web including hydro-embossments and devoid of thermo-embossments, wherein the first surface area covers five to ninety-five percent of a total surface area of the non-woven web, and a second surface area of the web including thermo-embossments and devoid of hydro-embossments, wherein the second surface area covers at least two percent of the total surface area of the non-wove web and wherein the first surface area does not overlap the second surface area.

PRE-STRAINED LAMINATES AND METHODS FOR MAKING THE SAME

A laminate comprises a first layer comprising a plurality of lower opacity zones positioned within a higher opacity zone is provided. The plurality of lower opacity zones form a first pattern. The laminate comprises a second layer comprising a second pattern. The laminate comprises a non-joined span of the first and second layers having a dimension of at least about 20 mm. A first portion of the second pattern is visible through at least some of the plurality of lower opacity zones when the first layer, within the non-joined span, is in a first position relative to the second layer, within the non-joined span. A second portion of the second pattern is visible through at least some of the plurality of lower opacity zones when the first layer, within the non-joined span, is in a second position relative to the second layer, within the non-joined span. 1. A patterned apertured web comprising:a plurality of land areas in the patterned apertured web; anda plurality of apertures defined in the patterned apertured web, wherein at least some of the land areas surround at least some of the apertures;wherein the patterned apertured web has an Effective Open Area in the range of about 5% to about 50%, according to the Aperture Test; andwherein the patterned apertured web has a plurality of Interaperture Distances, according to the Aperture Test, wherein the Interaperture Distances have a distribution having a median and a mean, and wherein the mean is greater than the median.2. The patterned apertured web of claim 1 , wherein the plurality of apertures have an Average Absolute Feret Angle of at least about 20 degrees claim 1 , according to the Aperture Test.3. The patterned apertured web of claim 1 , wherein the difference between the mean and the median is at least about 4% and less than about 25%.4. The patterned apertured web of claim 1 , wherein at least some of the plurality of apertures have an Aspect Ratio greater than about 2 claim 1 , according to the Aperture Test.5. ...

SKIN MATERIAL AND CONVEYANCE SEAT

It is intended to improve texture of a decoration using a stitch line while improving workability in sewing for forming the stitch line at a skin material, to promote manufacturing efficiency as compared to formation of a stepped shape only by sewing, and to reduce the number of steps. A skin material is used for a conveyance seat, and is molded using a die. The skin material includes a linearly-extending stepped portion having a stepped shape transferred from the die, and a stitch line sewn along the stepped portion. The stepped portion serves as a guide upon formation of the stitch line. 1. A skin material used for a conveyance seat and molded using a die , comprising:a linearly-extending transferred extension having a stepped shape transferred from the die; anda stitch line sewn along the transferred extension,wherein the transferred extension serves as a guide upon formation of the stitch line.2. The skin material according to claim 1 , whereina thickness of the transferred extension and a periphery thereof is a constant thickness.3. The skin material according to claim 1 , whereinthe transferred extension is formed in a vicinity of a standing wall of the conveyance seat.4. The skin material according to claim 1 , whereinthe stitch line is formed on one side with respect to the transferred extension.5. The skin material according to claim 1 , whereinthe stitch line is formed at a portion formed continuously to a lower side of the stepped shape of the transferred extension.6. The skin material according to claim 1 , further comprising:a seal material configured to cover, from a back side, a sewing hole formed by the stitch line.7. The skin material according to claim 6 , whereinthe seal material covers the stitch line to extend over the transferred extension.8. A conveyance seat comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the skin material according to .'} This application is based on and claims the benefit of priority from the prior Japanese ...

ABSORBENT LAMINATED MATERIAL

Absorbent laminated materials that include two spunbond nonwoven layers with a cellulose layer arranged in between the spunbond nonwoven layers are disclosed. The different layers of the absorbent laminated material are bonded through an ultrasonic treatment, and can further undergo an embossing step. In addition, the absorbent laminated materials may be used as disposable wiping products, among other applications. 112-. (canceled)13. A method of making an absorbent laminated material , the method comprising:{'b': '1', 'providing a first spunbond nonwoven layer having a basis weight of from about gsm to about 30 gsm and comprising a thermoplastic polymer, a second spunbond nonwoven layer having a basis weight of from about 1 gsm to about 30 gsm and comprising a thermoplastic polymer, and a cellulose layer having a basis weight of from about 10 gsm to about 100 gsm;'}arranging the cellulose layer such that it is between the first and second spunbond nonwoven layers; andperforming an ultrasonic treatment on the arranged layers to provide an absorbent laminated material,wherein the cellulose layer is free of bonding agents and has a peel strength of greater than 10 grams/inch.14. The method of claim 13 , wherein the cellulose layer is provided at a ratio of about 4:1 to about 1:2 relative to the weight of the first and second spunbond nonwoven layers combined.15. The method of claim 13 , wherein the cellulose layer is formed by a paper-making process or by an air forming process.16. The method of claim 13 , wherein the method comprises a single ultrasonic treatment.17. The method of claim 13 , wherein the method further comprises embossing the absorbent laminated material.18. The method of claim 13 , wherein the absorbent laminated material has an absorbency of greater than 300% relative to the dry weight of the absorbent laminated material.19. The method of claim 13 , wherein the absorbent laminated material comprises layers having the same length and width.20. ( ...

Patterned Apertured Webs

A patterned apertured web is disclosed. The patterned apertured web includes a plurality of land areas in the patterned apertured web and a plurality of apertures defined in the patterned apertured web. At least some land areas of the plurality of land areas surround at least some apertures of the plurality of apertures. The patterned apertured web has an Effective Open Area in the range of about 3% to about 30%, according to the Aperture Test herein. The plurality of apertures include a first set of apertures defining a first shape and a second set of apertures defining a second shape. The first shape is positioned within the second shape.

High Strength Hydroentangled Scrim Sheet and Methods of Producing the Same

Methods for forming a hydroentangled scrim sheet are provided. The method can include hydroentangling a scrim sheet having a first layer of staple fibers on a first side of the scrim sheet and a second layer of staple fibers on a second side of the scrim sheet to form a hydroentangled scrim sheet; calendaring the hydroentangled scrim sheet to form a calendared hydroentangled scrim sheet; impregnating the hydroentangled scrim sheet with a saturant composition; drying the saturant composition impregnated into the calendared hydroentangled scrim sheet; applying a bond coat onto a surface of the calendared hydroentangled scrim sheet; and applying a top coat onto the bond coat. The top coat is, in one embodiment, configured to provide a surface for further coatings thereon. 1. A method of forming a hydroentangled scrim sheet , the method comprising:hydroentangling a scrim sheet having a first layer of staple fibers on a first side of the scrim sheet and a second layer of staple fibers on a second side of the scrim sheet to form a hydroentangled scrim sheet;calendaring the hydroentangled scrim sheet to form a calendared hydroentangled scrim sheet;impregnating the hydroentangled scrim sheet with a saturant composition;drying the saturant composition impregnated into the calendared hydroentangled scrim sheet;applying a bond coat onto a surface of the calendared hydroentangled scrim sheet; andapplying a top coat onto the bond coat, wherein the top coat is configured to provide a surface for further coatings thereon.2. The method of claim 1 , wherein the top coat comprises a styrene butadiene latex claim 1 , an acrylic latex claim 1 , and a clay claim 1 , and wherein the bond coat comprises a polyurethane dispersion claim 1 , and a wetting agent and/or a viscosity modifier and/or a rheology modifier.3. The method of claim 1 , wherein the scrim sheet comprises a fibrous web that includes polyester fibers claim 1 , or wherein the scrim sheet comprises a fibrous web that ...

NONWOVEN FABRIC WITH BONDING PATTERN

A nonwoven fabric has multiplicity of fibers, bonded portions, and unbonded portions. The bonded portions are spaced apart from one another, each bonded portion comprises portions of the fibers that are bonded together, and each bonded portion has a thickness extending perpendicularly between opposite faces of the nonwoven fabric. Each unbonded portion comprises portions of the fibers that are not bonded together, and each unbonded portion has a thickness extending perpendicularly between the opposite faces of the nonwoven fabric. The thicknesses of the unbonded portions is greater than the thicknesses of the bonded portions. The bonded portions are sized and arranged for providing a desirable balance of properties. 1. A nonwoven fabric comprising:a multiplicity of fibers;a plurality of bonded portions, the bonded portions being spaced apart from one another, each bonded portion comprising portions of the fibers that are bonded together, and each bonded portion having a thickness extending perpendicularly between opposite faces of the nonwoven fabric;a plurality of unbonded portions, each unbonded portion comprising portions of the fibers that are not bonded together, and each unbonded portion having a thickness extending perpendicularly between the opposite faces of the nonwoven fabric;the thicknesses of the unbonded portions being greater than the thicknesses of the bonded portions; andthe bonded portions being sized and arranged in a pattern configured so that the unbonded portions occupy more than 5.55 times as much space as the bonded portions in a plan view of an area of a face of the opposite faces of the nonwoven fabric, wherein the area contains more than one hundred of the bonded portions.2. The nonwoven fabric according to claim 1 , wherein the fibers comprise meltspun filaments.3. The nonwoven fabric according to claim 1 , wherein the thicknesses of the unbonded portions are more than twice as large as the thicknesses of the bonded portions.4. The ...

FIBER MATERIAL AND METHOD FOR MANUFACTURING THE SAME

A fiber material contains an assembly of a plurality of nanofiber coated polymer fibers in which a polymer fiber serving as a core fiber is coated with polymer nanofibers, in which the polymer fibers and the polymer nanofibers are fusion-bonded and two or more of the polymer fibers are fusion-bonded to each other in at least one portion. 2. The process according to claim 1 , wherein an amount of the electro-spun polymer nanofibers of the electro-spun polymer fiber coated with the electro-spun polymer nanofibers claim 1 , is 5 parts by weight or more and 90 parts by weight or less.3. The process according to claim 1 , wherein temperature of the heating in the step (iv) is equal to or higher than the melting point of the polymer material forming the electro-spun polymer fiber claim 1 , and is equal to or less than the glass transition point of the polymer material forming the electro-spun polymer nanofibers. This application is a divisional of U.S. patent application Ser. No. 14/604,489, filed Jan. 23, 2015, which claims the benefit of Japanese Patent Application No. 2014-012756, filed Jan. 27, 2014, each of which is hereby incorporated by reference herein in its entirety.The present invention relates to a fiber material and a method for manufacturing the same and more specifically relates to a fiber material coated with nanofiber and a method for manufacturing the same.In recent years, a fiber material has drawn attention as a material having a large specific surface area. In particular, an increase in specific surface area based on surface treatment of fibers and a development of a material employing the same have been energetically examined in and outside Japan.Japanese Patent Laid-Open No. 2009-219952 discloses a fiber material for filters having a large specific surface area in which nanofibers to which a functional group is given are ejected to a core fiber while applying a high voltage to coat the core fiber. Herein, an increase in specific surface area is ...

APPARATUS FOR FABRICATING AN ELASTIC NONWOVEN MATERIAL

An apparatus for fabricating an elastic nonwoven material generally includes a first bonding module and a second bonding module. The second bonding module is positionable in close proximity to the first bonding module for receiving a first nonwoven fabric, a second nonwoven fabric, and at least one elastic strand therebetween. The second bonding module has a face with a width dimension and a circumferential axis and is rotatable about a rotation axis. The face has a plurality of ridges includes a first ridge and a pair of second ridges positioned on opposing sides of the first ridge along the circumferential axis. The first ridge defines a plurality of interspaced lands and notches, and the second ridges are configured to sever the at least one elastic strand when in close proximity to the first bonding module. 1. An apparatus for fabricating an elastic nonwoven material , the apparatus comprising:a first bonding module; anda second bonding module positionable, in close proximity to the first bonding module, for receiving a first nonwoven fabric, a second nonwoven fabric, and at least one elastic strand therebetween, wherein the second bonding module has a face with a width dimension and a circumferential axis and is rotatable about a rotation axis, the face having a plurality of ridges comprising a first ridge and a pair of second ridges positioned on opposing sides of the first ridge along the circumferential axis, the first ridge defining a plurality of interspaced lands and notches, and the pair of second ridges configured to sever the at least one elastic strand when in close proximity to the first bonding module.2. The apparatus of claim 1 , wherein the first ridge is configured to form at least one pair of first bond points on the elastic nonwoven material claim 1 , the first bond points configured to entrap the at least one elastic strand therebetween claim 1 , and the second ridges each configured to form at least one second bond point configured to sever ...

MOIRÉ EFFECT LAMINATES AND METHODS FOR MAKING THE SAME

A laminate comprises a first layer comprising a plurality of lower opacity zones positioned within a higher opacity zone is provided. The plurality of lower opacity zones form a first pattern. The laminate comprises a second layer comprising a second pattern. The laminate comprises a non-joined span of the first and second layers having a dimension of at least about 20 mm. A first portion of the second pattern is visible through at least some of the plurality of lower opacity zones when the first layer, within the non-joined span, is in a first position relative to the second layer, within the non-joined span. A second portion of the second pattern is visible through at least some of the plurality of lower opacity zones when the first layer, within the non-joined span, is in a second position relative to the first layer, within the non-joined span. 1. An absorbent article comprising:a liquid permeable topsheet on a wearer-facing side of the absorbent article; a backsheet film; and', 'a nonwoven layer joined to the backsheet film, wherein the nonwoven layer comprises a plurality of apertures, wherein at least 3 of the plurality of apertures in a repeat unit have a different Effective Aperture Area, according to the Aperture Test herein, a different shape, and a different Absolute Feret Angle, according to the Aperture Test herein; and, 'a garment-facing laminate on a garment-facing side of the absorbent article, the garment-facing laminate comprisingan absorbent core is disposed at least partially intermediate the liquid permeable topsheet and the garment-facing laminate.2. The absorbent article of claim 1 , wherein the backsheet film or the nonwoven layer is pre-strained prior to the joining of the backsheet film to the nonwoven layer.3. The absorbent article of claim 1 , wherein the nonwoven layer forms an outermost layer of the garment-facing laminate.4. The absorbent article of claim 1 , wherein the at least 3 of the plurality of apertures are non-homogeneous ...

THERMOCOMPRESSION-BONDING FILAMENT NONWOVEN FABRIC HAVING EXCELLENT MOLDING PROPERTIES

Provided is a thermocompression-bonding filament nonwoven fabric, which is inexpensive, has excellent molding properties and design properties, and is suitable as surface materials for automotive acoustic absorbing materials. 1. A thermocompression-bonding filament nonwoven fabric comprising a polyester-based resin having a melting point of 250° C. or more , wherein the filament nonwoven fabric has a weight of 20 to 80 g/m , a sum of 5% tensile loads in a MD and CD per weight of 1.0 to 1.9 (N/5 cm)/(g/m) , and a 180° C. dry heat shrinkage of 3.5% or less in both the MD and CD , and is not mechanically interlaced.2. The thermocompression-bonding filament nonwoven fabric according to claim 1 , wherein the polyester-based resin comprises 2.0 wt % or less of a styrene-methyl methacrylate-maleic anhydride copolymer or styrene-maleic acid copolymer in polyethylene terephthalate.3. The thermocompression-bonding filament nonwoven fabric according to claim 1 , having an apparent density of from 0.12 to 0.20 g/cm.4. The thermocompression-bonding filament nonwoven fabric according to claim 2 , having an apparent density of from 0.12 to 0.20 g/cm3. The present invention relates to a thermocompression-bonding filament nonwoven fabric having excellent molding properties and suitable for use as surface materials for automotive acoustic absorbing materials. In more details, the present invention relates to a thermocompression-bonding filament nonwoven fabric that makes easy integral molding of surface materials for protecting core materials, that has reduced breaks of embossed marks after molding and that has less fluffing.Acoustic absorbing materials integrally made from a nonwoven fabric layered at least on one side of glass fiber mats, urethane chips, and the like processed by binder resins such as phenol resins are now available (see, for example, Patent Document 1). To improve the covering properties of the acoustic absorbing materials, the fluffing resistance and design ...

NONWOVEN FABRIC STRUCTURE AND METHOD FOR PRODUCING THE SAME

Provided is a nonwoven fabric structure containing an odd-shaped fiber. The odd-shaped fiber has bubbles inside and has a cross-sectional shape that is an irregular, non-circular cross-section. Further, it is preferable that the cross-sectional shape of the odd-shaped fiber changes in the fiber length direction, the odd-shaped fiber has a crystallinity of 40% or less, and the odd-shaped fiber is made of at least two kinds of thermoplastic resins. It is also preferable that that the nonwoven fabric structure contains a heat fusible fiber, the odd-shaped fiber is present in the form of a net-like fiber sheet, and the odd-shaped fiber is in the form of short fibers. In addition, a method for producing such a nonwoven fabric structure is a method in which a thermoplastic resin containing a foaming agent is extruded through a slit die to give an odd-shaped fiber having bubbles inside, followed by three-dimensional shaping. 1. A nonwoven fabric structure comprising an odd-shaped fiber , characterized in that the odd-shaped fiber has bubbles inside and has a cross-sectional shape that is an irregular , non-circular cross-section.2. The nonwoven fabric structure according to claim 1 , wherein the cross-sectional shape of the odd-shaped fiber changes in the fiber length direction.3. The nonwoven fabric structure according to claim 1 , wherein the odd-shaped fiber has a crystallinity of 40% or less.4. The nonwoven fabric structure according to claim 1 , wherein the odd-shaped fiber is made of at least two kinds of thermoplastic resins.5. The nonwoven fabric structure according to claim 1 , wherein the odd-shaped fiber contains at least two kinds of thermoplastic resins having melting points that are at least 30° C. apart from each other.6. The nonwoven fabric structure according to claim 1 , wherein the nonwoven fabric structure contains a heat fusible fiber.7. The nonwoven fabric structure according to claim 1 , wherein the odd-shaped fiber is present in the form of a net- ...

EXTENSIBLE NONWOVEN FABRIC

Extensible nonwoven fabrics having improved elongation, extensibility, abrasion resistance and toughness. In particular, embodiments of the invention are directed to extensible spunbond fabrics comprising a polymeric blend of a metallocene catalyzed polypropylene, polyethylene, and a third polymer component. 1. A nonwoven fabric comprising a plurality of fibers that are bonded together to form a coherent web , the fibers comprising a polymeric blend of a metallocene catalyzed polypropylene component , a polyethylene component , and a third polymer component that is at least partially miscible in the metallocene catalyzed polypropylene component and polyethylene component , wherein the nonwoven fabric exhibits a 15 to 45% increase in toughness in comparison to a similar nonwoven fabric comprising a Ziegler-Natta catalyzed polypropylene in place of the metallocene catalyzed polypropylene.2. The fabric of claim 1 , wherein the third polymer component comprises a polypropylene copolymer or terpolymer.3. The fabric of claim 1 , wherein the plurality of fibers are point bonded to each other with a bonding pattern having a cross-direction rod shape.4. The fabric of claim 1 , wherein the bonds cover 8 to 25% of a surface are of the nonwoven fabric.5. The fabric of claim 1 , wherein the nonwoven fabric has been subject to a solid state deformation such that the fibers have become permanently elongated.6. The fabric of claim 1 , wherein the fibers are multicomponent fibers having a sheath/core arrangement in which the sheath comprises polyethyelene and the core comprises said polymeric blend.7. The fabric of claim 1 , wherein the fibers are monocomponent fibers.8. The fabric of claim 1 , wherein the blend comprises greater than 50 percent by weight of the polypropylene component claim 1 , 1 to 10 percent of the polyethylene component and 10 to 40 percent of the third polymer component.9. An absorbent article comprising the fabric of .10. A nonwoven fabric comprising a ...

Absorbent material

FIELD: textile and paper. SUBSTANCE: present invention relates to an absorbent material, such as a non-woven fabric or a thin paper, comprising continuous filaments and short fibers, wherein the short fibers contain natural and/or synthetic fibers or staple fibers, wherein the absorbent material has an absorption rate which is equal to or less than 2 s, and weight loss when washing is equal to or less than 5 %. EFFECT: present invention also relates to a method for preparing an absorbent material and a tissue containing said material. 12 cl, 2 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 696 642 C1 (51) МПК D04H 1/12 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК D04H 1/12 (2019.05) (21)(22) Заявка: 2018122226, 20.11.2015 (24) Дата начала отсчета срока действия патента: Дата регистрации: (73) Патентообладатель(и): ЭССИТИ ХАЙДЖИН ЭНД ХЕЛТ АКТИЕБОЛАГ (SE) 05.08.2019 (56) Список документов, цитированных в отчете о поиске: WO 2014104956 A1, 03.07.2014. US 20050112980 A1, 26.05.2005. WO 2008066417 A1, 05.06.2008. (45) Опубликовано: 05.08.2019 Бюл. № 22 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 20.06.2018 (86) Заявка PCT: SE 2015/051252 (20.11.2015) 2 6 9 6 6 4 2 Приоритет(ы): (22) Дата подачи заявки: 20.11.2015 R U 20.11.2015 (72) Автор(ы): БОГРЕН, Мария (SE), ФИНГАЛ, Ларс (SE), НИЛЬСТРАНД, Анна (SE) 2 6 9 6 6 4 2 R U WO 2017/086851 (26.05.2017) C 1 C 1 (87) Публикация заявки PCT: Адрес для переписки: 129090, ООО 'Юридическая фирма Городисский и Партнеры' ул. Большая Спасская, д.25, строение 3 Москва 129090 (54) ВПИТЫВАЮЩИЙ МАТЕРИАЛ (57) Реферат: Настоящее изобретение относится к впитывающему материалу, такому как нетканое полотно или тонкая бумага, содержащему непрерывные элементарные нити и короткие волокна, при этом короткие волокна содержат натуральные и/или синтетические волокна или штапельные волокна, при этом впитывающий Стр.: 1 материал имеет скорость впитывания, которая равна или ...

Crosslinked elastic material formed from a branched block copolymer

An elastic material for use in an absorbent article is provided. The elastic material contains a crosslinked network formed from a branched block copolymer having a monoalkenyl aromatic midblock positioned between conjugated diene endblocks (e.g., butadiene-styrene-butadiene (“B-S-B”) triblock copolymer). Prior to crosslinking, the branched block copolymers have a relatively low viscosity and thus may be readily formed into a precursor elastic material (e.g., film, strands, web, etc.) that is subsequently crosslinked to achieve the desired elastic and mechanical properties. Crosslinking is typically achieved through the formation of free radicals (unpaired electrons) that link together to form a plurality of carbon-carbon covalent bonds at the conjugated diene endblocks.

Nonwoven Web Material Containing Crosslinked Elastic Component Formed from a Pentablock Copolymer

A nonwoven web material that includes an elastic component or material (e.g., nonwoven web, nonwoven web laminated to an elastic material, etc.) is provided. The elastic component contains a crosslinked network formed from a pentablock copolymer containing at least two monoalkenyl aromatic midblocks positioned between conjugated diene endblocks, such as butadiene-styrene-butadiene-styrene-butadiene (“BSBSB”) or isoprene-styrene-isoprene-styrene-isoprene (“ISISI”). Prior to crosslinking, the pentablock copolymers have a relatively low viscosity and thus may be readily formed into a precursor elastic material (e.g., film, strands, web, etc.) that is subsequently crosslinked to achieve the desired elastic and mechanical properties.

Nonwoven web material containing a crosslinked elastic component formed from a linear block copolymer

A nonwoven web material that contains an elastic component is provided. The elastic component contains a crosslinked network formed from a linear block copolymer having a monoalkenyl aromatic midblock positioned between conjugated diene endblocks (e.g., butadiene-styrene-butadiene (“B-S-B”) triblock copolymer). Prior to crosslinking, such linear block copolymers have a relatively low viscosity and thus may be readily formed into a precursor elastic component that is subsequently crosslinked to achieve the desired elastic and mechanical properties. Crosslinking is typically achieved through the formation of free radicals (unpaired electrons) that link together to form a plurality of carbon-carbon covalent bonds at the conjugated diene endblocks.

Nonwoven web material containing a crosslinked elastic component formed from a linear block copolymer

A nonwoven web material that contains an elastic component is provided. The elastic component contains a crosslinked network formed from a linear block copolymer having a monoalkenyl aromatic midblock positioned between conjugated diene endblocks (e.g., butadiene-styrene-butadiene (“B-S-B”) triblock copolymer). Prior to crosslinking, such linear block copolymers have a relatively low viscosity and thus may be readily formed into a precursor elastic component that is subsequently crosslinked to achieve the desired elastic and mechanical properties. Crosslinking is typically achieved through the formation of free radicals (unpaired electrons) that link together to form a plurality of carbon-carbon covalent bonds at the conjugated diene endblocks.

Crosslinked elastic material formed from a branched block copolymer

An elastic material for use in an absorbent article is provided. The elastic material contains a crosslinked network formed from a branched block copolymer having a monoalkenyl aromatic midblock positioned between conjugated diene endblocks (e.g., butadiene-styrene-butadiene (“B-S-B”) triblock copolymer). Prior to crosslinking, the branched block copolymers have a relatively low viscosity and thus may be readily formed into a precursor elastic material (e.g., film, strands, web, etc.) that is subsequently crosslinked to achieve the desired elastic and mechanical properties. Crosslinking is typically achieved through the formation of free radicals (unpaired electrons) that link together to form a plurality of carbon-carbon covalent bonds at the conjugated diene endblocks.

Nonwoven web material containing crosslinked elastic component formed from a pentablock copolymer

A nonwoven web material that includes an elastic component or material (e.g., nonwoven web, nonwoven web laminated to an elastic material, etc.) is provided. The elastic component contains a crosslinked network formed from a pentablock copolymer containing at least two monoalkenyl aromatic midblocks positioned between conjugated diene endblocks, such as butadiene-styrene-butadiene-styrene-butadiene (“BSBSB”) or isoprene-styrene-isoprene-styrene-isoprene (“ISISI”). Prior to crosslinking, the pentablock copolymers have a relatively low viscosity and thus may be readily formed into a precursor elastic material (e.g., film, strands, web, etc.) that is subsequently crosslinked to achieve the desired elastic and mechanical properties.

Fine multicomponent fiber webs and laminates thereof

The present invention provides multicomponent fine fiber webs and multilayer laminates thereof having an average fiber diameter less than about 7 micrometers and comprising a first olefin polymer component and a second distinct polymer component such as an amorphous polyolefin or polyamide. Multilayer laminates incorporating the fine multicomponent fiber webs are also provided such as, for example, spunbond/meltblown/spunbond laminates or spunbond/meltblown/meltblown/spunbond laminates. The fine multicomponent fiber webs and laminates thereof provide laminates having excellent softness, peel strength and/or controlled permeability.

Fine multicomponent fiber webs and laminates thereof

The present invention provides multicomponent fine fiber webs and multilayer laminates thereof having an average fiber diameter less than about 7 micrometers and comprising a first olefin polymer component and a second distinct polymer component such as an amorphous polyolefin or polyamide. Multilayer laminates incorporating the fine multicomponent fiber webs are also provided such as, for example, spunbond/meltblown/spunbond laminates or spunbond/meltblown/meltblown/spunbond laminates. The fine multicomponent fiber webs and laminates thereof provide laminates having excellent softness, peel strength and/or controlled permeability.

Filament-meltblown composite materials, and methods of making same

An elastic composite material that does not require facing materials. The elastic composite material includes a first elastic meltblown layer, an array of continuous filament strands deposited on the first elastic meltblown layer, and a second elastic meltblown layer deposited on the continuous filaments strands opposite the first elastic meltblown layer. One or both meltblown layers and/or the continuous filament strands may include an elastic polyolefin-based meltblown polymer having a degree of crystallinity between about 3% and about 40%. Also included is a method of making the elastic composite material.

Fine fiber composite web laminates

A multilayer laminate comprising a fine fiber nonwoven composite web which is a mixture of a first group of fibers and a second group of fibers such that the first and second fibers comprise polymers that are incompatible with each other. The fine fiber nonwoven composite web is bonded to a barrier layer such as a microporous film or a nonwoven web of meltblown fibers.

一种静电纺纳米多组分纤维非织造材料及其制备方法和应用

本发明提供了一种静电纺纳米多组分纤维非织造材料及其制备方法和应用，涉及非织造材料技术领域，所述静电纺多组分非织造材料包括下至上依次层叠设置的第一长纤维层、短纤维层和第二长纤维层，所述第一长纤维层、所述短纤维层和所述第二长纤维层通过热轧依次复合，所述短纤维层由熔喷纳米短纤维制备而成，所述第一长纤维层和第二长纤维层均由纺粘纳米长纤维制备而成，缓解了现有纺粘非织造材料和熔喷非织造材料均无法满足人们对亲肤纺织品技术问题，本发明提供的静电纺纳米多组分纤维非织造材料不仅具有良好的机械强度，而且蓬松柔软，吸水性好，能够满足人们对于亲肤吸水纺织品的要求。

Extensible nonwoven fabric

Extensible nonwoven fabrics having improved elongation, extensibility, abrasion resistance and toughness. In particular, embodiments of the invention are directed to extensible spunbond fabrics comprising a polymeric blend of a metallocene catalyzed polypropylene, polyethylene, and a third polymer component.

Extensible nonwoven fabric

Extensible nonwoven fabrics having improved elongation, extensibility, abrasion resistance and toughness. In particular, embodiments of the invention are directed to extensible spunbond fabrics comprising a polymeric blend of a metallocene catalyzed polypropylene, polyethylene, and a third polymer component.

Process for making fibrous structures

Processes for making fibrous structures and more particularly processes for making fibrous structures comprising filaments are provided.

Non woven fabric

Tela no tejida que comprende una pluralidad de fibras que están unidas conjuntamente para formar una banda coherente, en la que las fibras comprenden una mezcla polimérica de un componente de polipropileno catalizado con metaloceno, un componente de polietileno, y un tercer componente polimérico que es al menos parcialmente miscible en el componente de polipropileno catalizado con metaloceno y el componente de polietileno, en la que el tercer componente polimérico comprende un copolímero o terpolímero de polipropileno, las fibras comprenden más de un 50 por ciento en peso del componente de polipropileno, de un 1 a un 10 por ciento del componente de polietileno y de un 10 a un 40 por ciento del tercer componente polimérico, y las fibras se han unido por calandrado con patrones en forma de varilla que se extienden en la dirección transversal (CD) de la banda, en la que los patrones de varilla en CD tienen una longitud que es aproximadamente de 1,5 a 10x el ancho y los patrones de varilla en CD están presentes en una cantidad que varía aproximadamente de un 8 a un 12 % en base al área superficial de la banda no tejida. Nonwoven fabric comprising a plurality of fibers that are joined together to form a coherent web, in which the fibers comprise a polymeric mixture of a metallocene-catalyzed polypropylene component, a polyethylene component, and a third polymeric component that is at less partially miscible in the metallocene-catalyzed polypropylene component and the polyethylene component, wherein the third polymer component comprises a polypropylene copolymer or terpolymer, the fibers comprise more than 50 percent by weight of the polypropylene component, of a 1 to 10 percent of the polyethylene component and 10 to 40 percent of the third polymer component, and the fibers have been joined by calendering with rod-shaped patterns that extend in the transverse (CD) direction of the band, in which the rod patterns on CD have a length that is approximately 1.5 to 10x the ...

Process for making fibrous structures

Processes for making fibrous structures and more particularly processes for making fibrous structures comprising filaments are provided.

Process for making fibrous structures

Processes for making fibrous structures and more particularly processes for making fibrous structures comprising filaments are provided.

Нетканые материалы с добавкой, улучшающей барьерные свойства

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2018 133 610 A (51) МПК A61F 13/494 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2018133610, 24.02.2017 (71) Заявитель(и): ЭЙВИНТИВ СПЕШИАЛТИ МАТИРИАЛЗ ИНК. (US) Приоритет(ы): (30) Конвенционный приоритет: 25.02.2016 US 62/299,821 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 25.09.2018 R U (43) Дата публикации заявки: 25.03.2020 Бюл. № 9 (72) Автор(ы): МУДИ III Ральф А. (US), СЫНАНГЫЛ Мехмет Селджук (US), ДИЦ III Альберт Дж. (US), ГРОНДЕН Пьер (US) (86) Заявка PCT: (87) Публикация заявки PCT: WO 2017/147444 (31.08.2017) A Адрес для переписки: 129090, Москва, ул. Б. Спасская, 25, стр. 3, ООО "Юридическая фирма Городисский и Партнеры" R U (57) Формула изобретения 1. Нетканый материал, содержащий: множество нетканых слоев, включающих два наружных слоя и один или более внутренних слоев между двумя наружными слоями, при этом, по меньшей мере, один из одного или более внутренних слоев содержит добавку, повышающую непроницаемость для жидкостей (LBEA), содержащую амид. 2. Нетканый материал по п. 1, в котором LBEA содержит первичный амид, вторичный амид, третичный амид, бис-амид или их любую комбинацию. 3. Нетканый материал по п. 2, в котором два наружных слоя включает в себя первый нетканый слой, содержащий множество волокон первого слоя, имеющих первый средний диаметр волокон, и третий нетканый слой, содержащий множество волокон третьего слоя, имеющих третий средний диаметр волокон, а один или более внутренних слоев включает второй нетканый слой, содержащий множество волокон второго слоя, имеющих второй средний диаметр волокон, и при этом первый средний диаметр волокон и третий средний диаметр волокон больше второго среднего диаметра волокон. 4. Нетканый материал по п. 3, в котором второй средний диаметр волокон второго нетканого слоя составляет от приблизительно 0,1 до приблизительно 10 микрон, и при этом каждый из первого среднего диаметра волокон ...

Fibrous web comprising microfibers dispersed among bonded meltspun fibers

부직 섬유 웨브는 응집성의 자립식 형태로 결합된 연속적인 멜트스펀 섬유의 매트릭스, 및 멜트스펀 섬유들 사이에 분산된 별도로 제조된 마이크로 섬유를 포함한다. 마이크로 섬유는 1 또는 2 마이크로미터 미만의 중간 직경을 가질 수 있다. 그러한 부직 섬유 웨브를 제조하기 위한 방법은, 종축을 갖는 연속적인 배향된 멜트스펀 섬유의 스트림을 확보하는 단계, 멜트스펀 섬유의 스트림 부근의 지점에서 멜트블로잉 다이를 나오는 멜트블로운 마이크로 섬유의 스트림(멜트블로운 스트림은 멜트스펀 스트림과 병합하도록 향하게 하고 멜트스펀 스트림의 종축에 대해 0도 내지 90도의 각도를 형성하는 종축을 가짐)을 확보하는 단계, 멜트블로운 섬유를 멜트스펀 섬유의 스트림 내에 포획하는 단계, 및 멜트스펀 및 멜트블로운 스트림들의 교차점 부근에서 이격된 수집기 상에 병합된 스트림을 웨브로서 수집하는 단계를 포함한다. The nonwoven fibrous web comprises a matrix of continuous melt spun fibers bonded together in a cohesive, self-supporting fashion, and separately produced microfibers dispersed among the melt spun fibers. The microfibers may have a median diameter of less than 1 or 2 micrometers. A method for making such a nonwoven fibrous web comprises the steps of securing a stream of continuously oriented melt spun fibers having a longitudinal axis, a stream of meltblown microfibers coming out of the meltblowing die at a point near the stream of melt spun fibers Wherein the meltblown stream is directed to coalesce with the melt spun stream and has a longitudinal axis to form an angle of 0 to 90 degrees with respect to the longitudinal axis of the melt spun stream; And collecting the merged stream as a web on a spacer spaced near the intersection of the melt spun and meltblown streams. 섬유 웨브, 멜트스펀, 멜트블로운, 마이크로 섬유, 스트림 Fiber web, melt spun, meltblown, microfibre, stream

复合纤维及由其制得的非织造织物

公开了一种易于制成细纤度、柔软、具有良好手感和足够强度的纤维并适用于各种用途的复合纤维以及包含上述复合纤维的非织造织物。提供至少部分由分子量分布(Mw/Mn)为1.5—3.5的丙烯聚合物构成的复合纤维以及由其制成的非织造织物。上述的丙烯聚合物较好是用单点催化剂制得的聚合物。复合纤维可具有芯部分含丙烯聚合物和皮部分含乙烯聚合物的皮芯型结构或包含含丙烯聚合物的纤维部分和含乙烯聚合物的纤维部分的并列结构。

Bulky nonwoven fabric

내용 없음. No content.

Filter media with nanoweb layer

공기 또는 기타 가스로부터 미립자를 여과하기 위한 필터 매체는 막과 이 막의 상류에서 이와 유체 접촉하는 심부 여과 층을 포함한다. 심부 여과 층은 나노웨브 층과 이 나노웨브 층의 상류에서 이와 유체 연통하는 전처리 여과 층을 포함한다. 전처리 여과 층은 부직포일 수 있으며, 일 실시 형태에서는 구체적으로 멜트블로운 부직포일 수 있고 이는 또한 대전될 수 있다. Filter media for filtering particulates from air or other gases include a membrane and a deep filtration layer upstream of the membrane and in fluid contact therewith. The depth filtration layer comprises a nanoweb layer and a pre-filtration layer upstream of and in fluid communication with the nanoweb layer. The pre-filtration layer may be a nonwoven, and in one embodiment specifically a meltblown nonwoven, which may also be charged.

車両の内張用の音響的効果を有する不織布

【課題】音の吸収性が良く且つ容易に調整可能で、形態安定特性を有しており、しかも、軽量で薄く、耐久性に優れ、容易にリサイクルすることが可能な多孔性の不織布を提供することにある。 【解決手段】自動車の内張用の音響的効果を有する不織布は、粗い繊維（８）から成る多孔性の繊維骨格を含んでおり、これらの粗い繊維（８）は、特に、短繊維またはスパンボンド繊維を含んでいる。また、連続的に重量割合値が変化する熱融着超極細繊維材料（７）が、前面および／または後面領域（４）において使用されている。そして、この熱融着超極細繊維材料（７）が、粗い繊維（８）に付着し、不織布が所定の空気流抵抗を有し且つ少なくともその表面領域（４）において強化されるように、これらの粗い繊維を結合している。

Base structure for seamed papermaker's fabrics

기계상에서 솔기잇기를 할 수 있는 제지기용 직물은 나선형으로 감긴 멀티컴포넌트사의 편평해진 어레이형 베이스 구조체를 갖는다. 이 편평해진 어레이는 두 층, 두 면, 하나의 길이, 하나의 폭 및 두 개의 폭방향 에지를 갖는다. 나선형으로 감겨진 각각의 회전에서, 멀티컴포넌트사는 본질적으로 길이방향의 배향을 가지고, 두 층의 각각에서 용융가능한 열가소성 물질에 의해 인접한 것들끼리 나란히 결합된다. 멀티컴포넌트사는 두 개의 폭방향 에지를 따라서 시밍 루프를 형성한다. 스테이플 섬유 물질로 된 적어도 한 층은 베이스 구조체의 두면 중 하나와 두 층을 관통하도록 니들링된다. Paper machine fabrics that can seam on machines have a flattened array base structure of spirally wound multicomponent yarns. This flattened array has two layers, two sides, one length, one width and two width edges. In each spiral wound, the multicomponent yarns have an essentially longitudinal orientation and are joined side by side adjacent by meltable thermoplastics in each of the two layers. Multicomponent yarns form a seaming loop along two widthwise edges. At least one layer of staple fiber material is needled to penetrate both layers and one of the two sides of the base structure.

高耐水压热风拒水无纺布及其生产方法和生产系统

本发明公开了一种高耐水压热风拒水无纺布，包括第一纤维网、第二纤维网和熔喷层，熔喷层位于第一纤维网和第二纤维网之间，第一纤维网、第二纤维网和熔喷层通过热风粘合。相应地，本发明还提供了高耐水压热风拒水无纺布的生产系统和生产方法。本发明的高耐水压热风拒水无纺布的纤维层与熔喷层采用热风粘合，纤维网可保持疏松度，提高拒水无纺布的柔软度。采用热风粘合，使得纤维网与熔喷层有较好的粘合效果，而且不会破坏熔喷层，得到的拒水无纺布有较强的耐水压性能。并且其生产系统结构简单、易于操作，其生产方法步骤简单。

Non woven fabric having Rayon and Manufacturing Method for the Same

본 발명의 레이온 섬유를 포함하는 부직포는 용융방사되는 폴리프로필렌의 표면에 레이온 단섬유와 친수성을 가지는 단섬유를 혼합한 물질을 부착한 것으로, 레이온 단섬유가 90%이하 함유하고, 상기 친수성을 가지는 단섬유는 친수 PP 단섬유, 친수 PET 단섬유, 천연 단섬유 적어도 하나 이상의 물질을 포함하는 것을 특징으로 한다. The nonwoven fabric comprising the rayon fiber of the present invention is obtained by adhering a material obtained by mixing short fibers of rayon and short fibers having hydrophilicity on the surface of a melt-spun polypropylene. The nonwoven fabric contains not more than 90% of rayon staple fibers, The staple fiber is characterized by comprising at least one material of hydrophilic PP staple fiber, hydrophilic PET staple fiber, natural staple fiber.

一种长网成形在线纺粘的水刺复合无纺布及其制备方法

本发明公开了一种长网成形在线纺粘的水刺复合无纺布，包括在线湿法长网成形第一纤维层和在线纺粘成网第二纤维层，并由第一纤维层和第二纤维层叠合水刺而成。本发明不仅生产过程中仅需在线长网成形和在线纺粘同步一次成型即可制得，工艺简单方便，并利用长网成形和纺粘成形均能实现400～1200m/min的较高生产速度，可以突破目前PP纺粘复合木浆水刺无纺布生产线最高生产线速在160m/min的极限，长网成形在线纺粘的水刺复合无纺布生产线成卷线速度达到350m/min以上，极大的提高了产能、节约了能耗、降低了物料损耗，降低生产成本，同时由于纺粘固结的可控性，产品摩擦吸附力高，吸液性好，去污能力强，特性可根据终端使用需求个性化定制。

High loft nonwoven sheet material and method of construction thereof

아시아 판지 및 스크림 층을 포함하는 부직 음향 시트 재료 및 그 제조방법이 제공된다. 제조방법은 아시아 판지를 제공하는 단계 및 판지들을 정해진 크기의 조각들로 분쇄하는 단계를 포함한다. 또한, 판지의 감소된 크기의 조각들을 열 결합성 텍스타일 섬유 및 스테이플 섬유와 조합하여 실질적으로 균질한 혼합물을 형성한 다음, 혼합물로부터 웹을 형성한다. 다음에, 웹의 구성물 성분들을 열에 의해 결합하여 원하는 두께의 매트를 제조한다. 또한, 초기에 제조된 대로의 매트의 두께를 유지하면서 매트의 적어도 한 면에 스크림 층을 적층한다. A non-woven acoustical sheet material including an Asian paperboard and a scrim layer, and a method for manufacturing the same. The manufacturing method includes providing an Asian paperboard and crushing the cartons into pieces of a predetermined size. Also, reduced-size pieces of cardboard are combined with thermally-binding textile fibers and staple fibers to form a substantially homogeneous mixture, and then a web is formed from the mixture. Next, the constituent components of the web are joined together by heat to produce a mat of desired thickness. Also, a scrim layer is laminated on at least one side of the mat while maintaining the thickness of the mat as initially produced.

Insulating material

An insulating material is constructed in weight percent from about 20-60% low melt bicomponent fiber, 10-40% high melt bicomponent fiber and 20-60% staple fiber. The material provides a unique combination of strength, acoustical insulating and even thermal insulating properties heretofore unavailable in the art.

具有改进的结构、声学和热性能的非织造织物

提供形成多层绝缘材料(10)的方法，所述多层绝缘材料(10)由声音复合层(12)和第一热层(14)形成。声音和绝缘层由聚合物基热塑性材料和增强纤维形成。优选地，增强纤维是湿法应用的短切单纱玻璃纤维(WUCS)。可通过开松WUCS纤维，共混增强纤维与聚合物纤维，将增强纤维与聚合物纤维成形为片材，然后粘结该片材，从而形成声音复合层。然后，由一种或更多种聚合物基热塑性有机材料形成的第一热层位于声音复合层的第一主表面上。聚合物纤维中的第二热层(16)可任选地位于声音复合层的第二主表面上。可在半结构和声音应用中使用多层声音材料。

Conjugate fibers and non-woven fabrics therefrom

Conjugate fibers which are easy to make into fibers of small denier and soft, have a good feel and adequate strength and consequently are suitable for use as the material for various applications and non-woven fabrics comprising the said conjugate fibers. The conjugate fibers at least a part of which comprise a propylene polymer having a molecular weight distribution (Mw/Mn) of 1.5 to 3.5, and non-woven fabrics made thereof. The propylene polymer may, preferably, be a polymer obtained by a single site catalyst. The conjugate fibers may have a core-sheath structure containing core parts comprising the propylene polymer and sheaths comprising an ethylene polymer, or have a side-by-side structure containing the fiber part comprising the propylene polymer and the fiber part comprising an ethylene polymer.

一体成型帽子的制作工艺及其制作的帽子

本发明公开了一体成型帽子的制作工艺及其制作的帽子，包括以下步骤：1）制作布料A和定型模具；2）裁剪，将步骤1）中得到的布料A裁剪成设定的大小尺寸；3）热塑定型，将步骤2）中经裁剪完毕后的布料A紧贴覆盖于定型模具上，然后再通过一容器对布料A进行热塑定型，进而使得布料A一体成型为帽子，进而得到所需要的产品。由于本发明通过采用面布B和能够热塑定型的里布C紧贴在一起形成布料A，然后再将布料A热塑定型成帽子，不但大大地提高了帽子的生产速度，有效保证帽子质量的稳定性，而且不需要将布料剪裁成多块拼接件，大大地减少了布碎，节约了布料，不仅降低生产成本，还节能环保。

Manufacturing method of skin material, vehicle sheet and skin material

Process for manufacturing nonwoven web material

A nonwoven web material including fibers formed of a polyolefin and a polyester is disclosed. The fibers may include fine fibers produced by, for example, a meltblowing process. The polyolefin may be polypropylene and the polyester may be polylactic acid. The polylactic acid may be obtained and included by recycling scrap nonwoven material containing a polylactic acid component, hydrolyzing the polylactic acid component to reduce its viscosity, blending the hydrolyzed polylactic acid with a polyolefin resin, and melt-spinning the blended material to form fibers. A related process is disclosed.

Nonwoven web with improved adhesion and reduced dust formation

Making suitable nonwoven webs requires good adhesion between the binder and the absorbent material. The present invention relates to a nonwoven web having improved adhesion based on tackifiers present in the binder. Optionally, the binder with tackifier may also contain an adhesion promoter, usually grafted polyolefins, and an enhancement agent, usually inactive inorganic compounds in powder form. The web comprises from about 5 to about 25% by weight binder fiber and from about 75 to 95% by weight absorbent. The absorbent may be a natural absorbent or a super absorbent polymer or a combination of these. The binder fiber contains less than about 40% by weight tackifier. Tackifier is selected form the class of rosin, rosin esters, terpene based, piperylene based, and hydrocarbon based compounds.

Full-surface bonded multiple component melt-spun nonwoven web

A full-surface bonded multiple component nonwoven fabric is provided that has an improved combination of tear strength and tensile strength at lower thicknesses than known in the art. The full-surface bonded multiple component webs have a void percent between about 3% and 56% and a Frazier permeability of at least 0.155 m 3 /min-m 2 . The full-surface bonded multiple component nonwoven fabrics can be prepared in a smooth-calendering process.

Extensible nonwoven fabric

Nonwoven wiper laminate

Nonwoven wiper having improved absorbency characteristics and streak free wiping properties having a laminate construction including a relatively high basis weight middle layer of meltblown thermoplastic microfibers and, on either side, a lightweight layer of generally continuous filament thermoplastic fibers having a larger average diameter. These wipers are strong, fabric-like, and are useful for a wide variety of applications including industrial uses, food services, as well as many others. The continuous filament layers provide strength and low lint properties while the combination exhibits improved wiping characteristics. The laminate is preferably bonded by application of heat and pressure and the individual components are preferably treated with a surfactant. The preferred combination of a layer of meltblown polypropylene microfibers having on either side a spunbonded polypropylene filament layer is particularly effective as an all purpose wiper.

Biodegradable polylactic acids for use in forming fibers

A method for forming a biodegradable polylactic acid suitable for use in fibers is provided. Specifically, a polylactic acid is melt processed at a controlled water content to initiate a hydrolysis reaction. Without intending to be limited by theory, it is believed that the hydroxyl groups present in water are capable of attacking the ester linkage of polylactic acids, thereby leading to chain scission or "depolymerization" of the polylactic acid molecule into one or more shorter ester chains. The shorter chains may include polylactic acids, as well as minor portions of lactic acid monomers or oligomers, and combinations of any of the foregoing. By selectively controlling the hydrolysis conditions (e.g., moisture and polymer concentrations, temperature, shear rate, etc.), a hydrolytically degraded polylactic acid may be achieved that has a molecular weight lower than the starting polymer. Such lower molecular weight polymers have a higher melt flow rate and lower apparent viscosity, which are useful in a wide variety of fiber forming applications, such as in the meltblowing of nonwoven webs.

Base structure for seamed papermaker's fabrics

一种可在机器上接缝的造纸机织物，包括基本构件，该基本构件是螺旋缠绕的多成分纱的压平阵列。该压平的阵列有两层、两侧、长度、宽度以及两宽度方向边缘。在两层中的各层中，在螺旋缠绕的各圈中，多成分纱定向成基本纵向，并通过可熔的热塑性材料与相邻的多成分纱并排连接。该多成分纱沿两宽度方向边缘形成接缝环。至少一层短纤维材料针剌到该基本构件的这两侧中的一侧上，并穿过这两层。

Nonwoven laminate for recreation fabric

Laminate of nonwoven fabric having unique properties suitable especially for use as a recreational fabric in the manufacture of tents, outer garments, tarpaulins and the like. The laminate includes, as essential components, an outer spunbonded layer treated for resistance to ultraviolet radiation and intended as the exposure surface, an inner microporous meltblown layer, preferably densified for resistance to liquid strike-through, and, on the unexposed surface, another nonwoven layer treated for flame retardancy. The combination optionally includes additional pigments in the exposed surface layers for desired appearance as well as pigments and/or ultraviolet radiation resistance treatment in the inner meltblown layer. As additional options, further layers of meltblown or spunbonded nonwovens may be included to attain desired physical properties. The resulting material provides a unique combination having excellent properties for recreational fabric uses, especially water repellency, breathability, resistance to degradation by ultraviolet radiation and flame retardancy.

Wet wipe and wipe dispensing arrangement

A wet wipe which is elastic in at least one direction, and includes an elastic sheet having at least one non-elastic non-woven web joined thereto at least at two areas. The non-elastic web is gathered between said two areas and a liquid is distributed within the sheet and/or the web. The sheet is preferably a nonwoven web of meltblown ethylene vinyl acetate fibers and the non-elastic web is preferably a nonwoven web of spunbonded fibers. The liquid may include a fragrance and/or a preservative. An arrangement for dispensing an interleaved stack of the wet wipes is also provided.

Semi-permeable nonwoven laminate

A house wrap consists of a three-layer, semi-permeable, nonwoven laminate. The two exterior layers are spun-bond polypropylene having a melt flow of 35 grams per ten minutes at 230° C. The interior layer is a two-component melt-blown layer of polyethylene and polypropylene. The polypropylene has a melt flow of 260 and the polyethylene has a melt flow of 350. The laminate is calendered after formation so that the polyethylene melts and flows to close up the interstitial space and to bond the layers together to create a strong semi-permeable laminate.

Biodegradable polylactic acids for use in forming fibers

A method for forming a biodegradable polylactic acid suitable for use in fibers is provided. Specifically, a polylactic acid is melt processed at a controlled water content to initiate a hydrolysis reaction. Without intending to be limited by theory, it is believed that the hydroxyl groups present in water are capable of attacking the ester linkage of polylactic acids, thereby leading to chain scission or “depolymerization” of the polylactic acid molecule into one or more shorter ester chains. The shorter chains may include polylactic acids, as well as minor portions of lactic acid monomers or oligomers, and combinations of any of the foregoing. By selectively controlling the hydrolysis conditions (e.g., moisture and polymer concentrations, temperature, shear rate, etc.), a hydrolytically degraded polylactic acid may be achieved that has a molecular weight lower than the starting polymer. Such lower molecular weight polymers have a higher melt flow rate and lower apparent viscosity, which are useful in a wide variety of fiber forming applications, such as in the meltblowing of nonwoven webs.

Surge management fibrous nonwoven web for personal care absorbent articles and the like

Disclosed herein is a fibrous nonwoven web which is particularly well-suited for use as a surge layer in personal care absorbent articles including, but not limited to, diapers, training pants, incontinence garments, sanitary napkins, bandages and the like. The fibrous nonwoven web is made from a plurality of fibers heat bonded to one another to form a nonwoven web having a basis weight of at least 20 grams per square meter, a void volume of between about 40 and about 60 centimeters per gram of web while under a pressure of 689 dynes per square centimeter, a permeability of about 5,000 to about 8,000 darcy, a porosity of about 97.2 percent to about 98.8 percent and a surface area per void of about 24 to about 49 square centimeters per cubic centimeter. The fibrous nonwoven web will have a saturation capacity of between about 30 and about 50 grams of 0.9 percent saline solution per gram of web and a compression resilience in both the wet and dry state of at least about 60 percent.

Biodegradable polylactic acids for use in forming fibers

A method for forming a biodegradable polylactic acid suitable for use in fibers is provided. Specifically, a polylactic acid is melt processed at a controlled water content to initiate a hydrolysis reaction. Without intending to be limited by theory, it is believed that the hydroxyl groups present in water are capable of attacking the ester linkage of polylactic acids, thereby leading to chain scission or 'depolymerization' of the polylactic acid molecule into one or more shorter ester chains. The shorter chains may include polylactic acids, as well as minor portions of lactic acid monomers or oligomers, and combinations of any of the foregoing. By selectively controlling the hydrolysis conditions (e.g., moisture and polymer concentrations, temperature, shear rate, etc.), a hydrolytically degraded polylactic acid may be achieved that has a molecular weight lower than the starting polymer. Such lower molecular weight polymers have a higher melt flow rate and lower apparent viscosity, which are useful in a wide variety of fiber forming applications, such as in the meltblowing of nonwoven webs.

An embossed composite nonwoven web material

FIBROUS NON-WOVEN FABRIC WITH IMPROVED LIQUID SPILL CONTROL FOR ABSORBENT PERSONAL HYGIENE AND SIMILAR ITEMS.

AQUI SE DESCRIBE UN TEJIDO NO HILADO FIBROSO QUE ESTA PARTICULARMENTE BIEN ADAPTADO PARA UTILIZARLO COMO UNA CAPA DE OSCILACION EN ARTICULOS ABSORBENTES DE CUIDADO PERSONAL QUE INCLUYE, PERO QUE NO SE LIMITA A, COMPRESAS, CALZONES DE DEPORTE, PRODUCTOS DE INCONTINENCIA, PAÑALES SANITARIOS, VENDAJES Y SIMILARES. EL TEJIDO NO HILADO FIBROSO SE ELABORA A PARTIR DE UNA PLURALIDAD DE FIBRAS QUE UNIDAS POR CALOR UNA A OTRA PARA FORMAR UN TEJIDO NO HILADO QUE TIENE UN PESO BASE DE AL MENOS 20 GRAMOS POR METRO CUADRADO, UN VOLUMEN DE VACIO DE ENTRE ALREDEDOR DE 40 Y 60 CENTIMETROS POR GRAMO DE TEJIDO Y AL MISMO TIEMPO BAJO UNA PRESION DE 689 DINAS POR CENTIMETRO CUADRADO, UNA PERMEABILIDAD DE ALREDEDOR DE 5.000 A 8.000 DARCY, UNA POROSIDAD DE ALREDEDOR DEL 97,2 AL 98,8 POR CIENTO Y UN AREA DE SUPERFICIE POR VACIO DE ALREDEDOR DE 24 A 49 CENTIMETROS POR CENTIMETRO CUBICO. EL TEJIDO NO HILADO FIBROSO TENDRA UNA CAPACIDAD DE SATURACION DE ENTRE ALREDEDOR DE 30 Y 50 GRAMOS DE 0,9 POR CIENTO DE SOLUCIONSALINA POR GRAMO DE TEJIDO Y UNA ELASTICIDAD DE COMPRESION TANTO EN EL ESTADO HUMEDO COMO EN EL SECO DE AL MENOS ALREDEDOR DEL 60 POR CIENTO. DESCRIBED HERE IS A FIBROUS NON-YARN FABRIC THAT IS PARTICULARLY WELL ADAPTED FOR USE AS A LAYER OF OSCILLATION IN ABSORBENT PERSONAL CARE ITEMS, INCLUDING, BUT NOT LIMITED TO, COMPRESSES, SPORTS SHOES, VINTAGE PRODUCTS AND SIMILAR. FIBROUS NON-YARN FABRIC IS MADE FROM A PLURALITY OF FIBERS THAT ARE UNITED BY HEAT ONE TO THE OTHER TO FORM A NON-YARN FABRIC THAT HAS A BASE WEIGHT OF AT LEAST 20 GRAMS PER SQUARE METER, A VACUUM VOLUME OF AROUND 40 AND 60 CENTIMETERS PER GRAM OF TISSUE AND AT THE SAME TIME UNDER A PRESSURE OF 689 DINAS PER SQUARE CENTIMETER, A PERMEABILITY AROUND 5,000 TO 8,000 DARCY, A POROSITY AROUND 97.2 TO 98.8 PERCENT AND A SURFACE AREA BY VACUUM AROUND 24 TO 49 CENTIMETERS PER CUBIC CENTIMETER. FIBROUS NON-YARN FABRIC WILL HAVE A SATURATION CAPACITY OF AROUND 30 AND 50 GRAMS OF 0.9 PERCENT OF SALINE SOLUTION PER GRADE OF ...

Nonwoven fabrics containing yarns with varying filament characteristics

The subject invention provides non-woven fabrics having yarns of varying characteristics. In a preferred embodiment the subject invention provides nonwoven fabrics that comprise yarns of different deniers or cross sections. The use of these yarns gives the nonwoven fabric a unique appearance and advantageous properties. The subject invention further pertains to the processes used to produce these fabrics.

BIODEGRADABLE NONTISSE

Preparation method and product of PLA/PP double-component fiber filtering material

本发明公开一种PLA/PP双组份纤维过滤材料的制备方法及其制品。该制备方法采用以下工艺：1.制备PLA梳理纤维流：把PLA纤维喂入气流梳理机，经气流梳理后，形成有序的PLA梳理纤维流；2.制备PP熔喷纤维流：将PP原料喂入螺杆挤压机内，在180-290℃下熔融挤出熔体，经预过滤器输送到计量泵内，计量后输送到喷丝模头，在喷丝孔两侧加入250-300℃的热空气对PP纤维进行拉伸，形成PP熔喷纤维流；3.制备PLA/PP双组份纤维过滤材料：将所述PLA梳理纤维流与PP熔喷纤维流按照PLA∶PP＝40-85∶60-15的质量百分比混合，经冷却，在收集器上形成纤网，并依靠PP纤维的余热粘合加固成型，形成PLA/PP双组份过滤材料；所述的PLA/PP混合比通过控制PLA纤维的原料喂入量和熔喷PP纤维的计量泵两个方面来实现。该制品由本发明所述制备方法制得。