Entries |
Document | Title | Date |
20080220681 | FLASH-SPUN SHEET MATERIAL - This invention relates to improved plexifilamentary sheet material useful in protective apparel and filtration media, which material is comprised of substantially continuous polyethylene plexifilamentary fiber strands and has a Frazier Permeability, normalized to 1.0 oz/yd | 09-11-2008 |
20080261476 | Nonwoven Material and a Method for Producing Nonwoven Material - A nonwoven material for use as an absorbent wiping material produced by hydroentangling of a substrate web including at least one layer of fibres selected from amongst synthetic fibres, regenerated fibres and natural fibres, wherein the nonwoven material has a base level h | 10-23-2008 |
20080274658 | Needlepunched nanoweb structures - A composite sheet of a nanoweb bonded to a second web, such that fibers from the second web protrude through the nanoweb in a multiplicity of discontinuous regions. | 11-06-2008 |
20090004941 | Bio-disintegratable board comprising polyactic acid conjugate fiber and natural fiber and its preparation method - The present invention relates to a biodegradable board comprising laminates of nonwoven fabric, which comprises natural fiber and a sheath-core type composite fiber having double layers of inner part and surface layer and its preparation method, and particularly to a biodegradable board comprising at least two layers of nonwoven fabric, which comprises natural fiber and sheath-core type composite fiber comprising biodegradable polylactic acid as a sheath component and resins such as polyethyleneterephthalate, polypropylene and polyethylene as a core component, and its preparation method. | 01-01-2009 |
20090029619 | Cellulosic Fiber Containing Hydroentangled Nonwoven and Method for Producing It - The invention is directed to a low-dusting, soft hydroentangled nonwoven with improved strength, which comprises cellulosic fiber with a pre-determined average length as well as staple fibers, which are either synthetic fibers and/or modified cellulose fibers, as well as a method for making this nonwoven. | 01-29-2009 |
20090047856 | Area bonded nonwoven fabric from single polymer system - A nonwoven fabric is provided having a plurality of semi-crystalline filaments that are thermally bonded to each other and are formed of the same polymer and exhibit substantially the same melting temperature. The fabric is produced by melt spinning an amorphous crystallizable polymer to form two components having different levels of crystallinity. During spinning, a first component of the polymer is exposed to conditions that result in stress-induced crystallization such that the first polymer component is in a semi-crystalline state and serves as the matrix or strength component of the fabric. The second polymer component is not subjected to stress induced crystallization and thus remains in a substantially amorphous state which bonds well at relatively low temperatures. In a bonding step, the fabric is heated to soften and fuse the binder component. Under these conditions, the binder component undergoes thermal crystallization so that in the final product, both polymer components are semi-crystalline. | 02-19-2009 |
20090053960 | Roof Liner for Vehicle and Manufacturing Method of Same - The present disclosure is directed to a roof lining for a vehicle and a manufacturing method thereof, and in particular, to the roof lining for a vehicle using a composite material having basalt fibers mixed into a thermoplastic resin as a substrate. The resulting roof lining can be lightweight, have enhanced sound absorbency and increased heat insulating properties. Due to the use of basalt fibers, which do not coat incinerator walls like glass fibers do, the roof lining is more easily recycled. | 02-26-2009 |
20090068913 | Low Porosity Facings For Acoustic Applications - A fibrous blanket material is provided having a first fibrous layer selected from a group of fibers consisting of polyester, polypropylene, polyethylene, fiberglass, natural fibers, nylon, rayon and blends thereof and a layer of meltblown polypropylene fibers. In an alternative embodiment the blanket may also include a second fibrous layer made of the same material as the first layer where the layer of meltblown polypropylene fibers is sandwiched between the two fibrous layers. | 03-12-2009 |
20090111347 | SOFT AND EXTENSIBLE POLYPROPYLENE BASED SPUNBOND NONWOVENS - The present invention relates to nonwoven webs or fabrics. In particular, the present invention relates to nonwoven webs having superior abrasion resistance and excellent softness characteristics. The nonwoven materials comprise fibers made from of a polymer blend of isotactic polypropylene and reactor grade propylene based elastomers or plastomers together with from about 100 to about 2500 ppm (by weight of the fiber) of a slip agent. The isotactic polypropylene can be homopolymer polypropylene, and/or random copolymers of propylene and one or more alpha-olefins. The reactor grade propylene based elastomers or plastomers have a molecular weight distribution of less than about 3.5, and a heat of fusion less than about 90 joules/gm. In particular, the reactor grade propylene based elastomers or plastomers contains from about 3 to about 15 percent by weight of units derived from an ethylene and a melt flow rate of from about 2 to about 200 grams/10 minutes. Erucamide is the preferred slip additive. | 04-30-2009 |
20090258559 | STAPLE FIBER DURABLE NONWOVEN FABRICS - The invention provides durable nonwoven fabrics comprising staple fibers. Methods of preparing durable nonwoven fabrics based on staple fibers are also provided. The methods can include the steps of at least one of needle punching and hydroentangling. The durable nonwoven fabric can be subjected to additional bonding techniques, such as resin bonding and/or thermal bonding. The durable nonwoven fabrics of the invention provide improved durability over conventional nonwoven fabrics. Further advantages of the inventive nonwoven fabrics include maintaining the smooth surface qualities of the fabric and desirable feel of the fabric even with the enhanced durability. The inventive nonwoven fabrics can also be subjected to additional post-processing techniques that conventional nonwoven fabrics would otherwise be unable to withstand. Further, inks and/or dyes can more readily become adhered to the smooth nature of the surfaces of the inventive durable nonwoven fabrics. | 10-15-2009 |
20100099320 | Pet yarns with improved loop tensile properties - Poly(ethylene terephthalate) monofilaments having improved loop strength and toughness as well as improved tensile strength and tensile toughness. The yarns can have a loop toughness of at least 2 gf/den, a loop tenacity of at least 7 gf/den, a tensile toughness of at least 0.9 gf/den, a tensile tenacity of at least 4 gf/den, and a DSC crystallinity of at least 35%. A process for the production of poly(ethylene terephthalate) monofilaments includes melt extrusion, orientation of the extrudates by stretching, and further stretching as well as heat treating the stretched monofilaments. Industrial fabrics, especially fabrics for paper machine clothing, can be made of such monofilaments as load bearing yarns that resist loop failure and that resist fabric creep at high temperature and high load. | 04-22-2010 |
20100261399 | CONJUGATE FIBER HAVING LOW-TEMPERATURE PROCESSABILITY, NONWOVEN FABRIC AND FORMED ARTICLE USING THE CONJUGATE FIBER - To provide a conjugate fiber that demonstrates low-temperature processability and excellent thermal adhesiveness without shrinking significantly, can be processed with excellent card passability when processed into a nonwoven fabric, and can produce a bulky nonwoven fabric having excellent uniformity. Bulky nonwoven fabric and a formed article having excellent low-temperature processability and excellent feeling are also provided. A conjugate fiber in which a first component that contains at least 75% by weight of an ethylene α-olefin copolymer having a melting point of 70 to 100° C. and a second component that contains a crystalline polypropylene form a side-by-side cross section, wherein, in a fiber cross section perpendicular to a fiber axis, the first component accounts for 55 to 90% of an outer periphery of the fiber, a borderline between the first component and the second component forms a curve bulging toward the first component, and an area ratio between the first component and the second component (first component/second component) is in a range of 70/30 to 30/70; a nonwoven fabric obtained by processing the conjugate fiber into a nonwoven fabric; and a formed article obtained using the conjugate fiber. | 10-14-2010 |
20110151737 | DIMENSIONALLY STABLE NONWOVEN FIBROUS WEBS AND METHODS OF MAKING AND USING THE SAME - Dimensionally stable nonwoven fibrous webs include a multiplicity of continuous fibers formed from one or more thermoplastic polyesters and polypropylene in an amount greater than 0% and no more than 10% by weight of the web. The webs have at least one dimension which decreases by no greater than 10% in the plane of the web when heated to a temperature above a glass transition temperature of the fibers. A spunbond process may be used to produce substantially continuous fibers that exhibit molecular orientation. A meltblown process may be used to produce discontinuous fibers that do not exhibit molecular orientation. The webs may be used as articles for filtration, sound absorption, thermal insulation, surface cleaning, cellular growth support, drug delivery, personal hygiene, medical apparel, or wound dressing. | 06-23-2011 |
20110151738 | DIMENSIONALLY STABLE NONWOVEN FIBROUS WEBS, MELT BLOWN FINE FIBERS, AND METHODS OF MAKING AND USING THE SAME - Dimensionally stable nonwoven fibrous webs include a multiplicity of continuous fibers formed from one or more thermoplastic polyesters and polypropylene in an amount greater than 0% and no more than 10% by weight of the web. The webs have at least one dimension which decreases by no greater than 10% in the plane of the web when heated to a temperature above a glass transition temperature of the fibers. A spunbond process may be used to produce substantially continuous fibers that exhibit molecular orientation. A meltblown process may be used to produce discontinuous fibers that do not exhibit molecular orientation. In some embodiments, the fibers comprise a viscosity modifier and/or an anionic surfactant. The webs may be used as articles for filtration, sound absorption, thermal insulation, surface cleaning, cellular growth support, drug delivery, personal hygiene, medical apparel, or wound dressing. | 06-23-2011 |
20110171868 | MULTILAYER COMPOSITE FIBER - The present invention has an object of providing a novel multilayer composite fiber using polyacetal mainly derived from methanol, which is a petroleum-independent raw material, and having a low environmental load, and also providing a nonwoven fabric obtained by thermally bonding such fibers. According to the present invention, a multilayer composite fiber comprising a resin containing polylactic acid as a main component and a resin containing polyacetal as a main component, in which the components both form continuous layers in an axial direction of the fiber, and also a nonwoven fabric obtained by thermally bonding such fibers, can be provided. | 07-14-2011 |
20120003894 | ELECTRET FILTER FOR VEHICULAR COMPARTMENT INTERIOR AND PRODUCTION METHOD THEREOF - The electret filter for vehicular compartment interior of the present invention has a nonwoven fabric which contains a polyolefin resin having a melt flow rate of 1,000 to 3,000 g per 10 minutes, and a heat generation amount of 2.0 to 10.0 J/g in a temperature range from 80° C. to 120° C. when the temperature of the polyolefin resin is elevated at a rate of 10° C. per minute in a differential scanning calorimetric analysis. The electret filter for vehicular compartment interior is manufactured by a method including a process for producing the nonwoven fabric by melt-blowing method, and a process for electrostatic charging the nonwoven fabric by means of corona discharge. | 01-05-2012 |
20120040582 | Modified Polylactic Acid Fibers - A method for forming biodegradable fibers is provided. The method includes blending polylactic acid with a polyepoxide modifier to form a thermoplastic composition, extruding the thermoplastic composition through a die, and thereafter passing the extruded composition through a die to form a fiber. Without intending to be limited by theory, it is believed that the polyepoxide modifier reacts with the polylactic acid and results in branching of its polymer backbone, thereby improving its melt strength and stability during fiber spinning without significantly reducing glass transition temperature. The reaction-induced branching can also increase molecular weight, which may lead to improved fiber ductility and the ability to better dissipate energy when subjected to an elongation force. To minimize premature reaction, the polylactic acid and polyepoxide modifier are first blended together at a relatively low temperature(s). Nevertheless, a relatively high shear rate may be employed during blending to induce chain scission of the polylactic acid backbone, thereby making more hydroxyl and/or carboxyl groups available for subsequent reaction with the polyepoxide modifier. Once blended, the temperature(s) employed during extrusion of the blended composition can be selected to both melt the composition and initiate a reaction of the polyepoxide modifier with hydroxyl and/or carboxyl groups of the polylactic acid. Through selective control over this method, the present inventors have discovered that the resulting fibers may exhibit good mechanical properties, both during and after melt spinning. | 02-16-2012 |
20120156956 | ELECTRICAL INSULATION MATERIAL - Provided in at least one embodiment is a nonwoven paper layer directly fused on one or both sides with a nonwoven fabric layer wherein one or both of the nonwoven paper and nonwoven fabric are electrically insulating. | 06-21-2012 |
20120190264 | SELF-ADHESIVE FIBER MAT - A self-adhesive fiber mat may include glass and/or polymer fibers and bi-component fibers intermixed therewith. The bi-component fibers may include a core material and an outer material surrounding the core material. The outer material may have a low melting point temperature relative to the core material that may soften when exposed to heat enabling the bi-component fiber to bond with fibers and/or surfaces adjacent to the bi-component fibers. Alternatively, the self-adhesive fiber mat may use a heat sensitive resin (bonding resin) as a binder instead of, or in addition to, the bi-component fibers. The heat sensitive resin may bind the fibers together and may also bond the self-adhesive fiber mat with an adjacent film or sheet. Bonding between the film or sheet and the self-adhesive fiber mat may occur as a result of the bi-component fibers or heat sensitive resin being exposed to heat and/or pressure. | 07-26-2012 |
20120208421 | PROCESS OF MAKING CORE-SHEATH NANOFIBERS BY COAXIAL ELECTROSPINNING - Exemplary embodiments provide core-sheath nanofibers produced by coaxial electrospinning, fuser members comprising core-sheath nanofibers, and methods for forming core-sheath nanofibers that can include a core solution comprising a high performance polymer and sheath solutions comprising a solvent-soluble fluoropolymer or solvent-insoluble fluororesins and a sacrificial polymeric binder. | 08-16-2012 |
20120238172 | ADHESIVE TAPE FOR JACKETING ELONGATE MATERIAL SUCH AS ESPECIALLY CABLE LOOMS AND JACKETING METHOD - An adhesive tape, especially for jacketing elongate material such as cable looms in a motor vehicle, having a carrier material which is provided at least on one side with an adhesive coating, characterized in that the carrier material consists of a laminate, the laminate being formed from a textile carrier in the form of a staple fiber web or a spunbonded web and from a film which is located on the underside of the textile carrier and is made preferably of polyolefins, TPU or PVC such as plasticized PVC, more preferably of polyolefins, the film having a thickness of 15 to 80 μm. | 09-20-2012 |
20130017748 | POROUS SHEET AND METHOD FOR MANUFACTURING THE SAMEAANM NA; Jin WookAACI Gyunggi-doAACO KRAAGP NA; Jin Wook Gyunggi-do KRAANM RYOO; Jae SikAACI Gyunggi-doAACO KRAAGP RYOO; Jae Sik Gyunggi-do KRAANM YOO; Jun HwanAACI SeoulAACO KRAAGP YOO; Jun Hwan Seoul KRAANM KIM; Sun OkAACI SeoulAACO KRAAGP KIM; Sun Ok Seoul KR - Disclosed herein is a porous sheet, including a fine fiber web, wherein the fine fiber web is formed by bonding fine fibers with each other using an adhesive material. | 01-17-2013 |
20130023176 | NON-WOVEN FABRIC COMPOSITES FROM COIR FIBERS - A non-woven fabric composite containing coir fibers and a method for producing such composites. The non-woven fabric composite is comprised of coir fibers, which are large diameter, lignin-rich fibers, with a high viscous flow temperature and a high degradation temperature combined with fibers made of a thermoplastic polymer with a lower viscous flow temperature such as polypropylene (“PP”), polyethylene (“PE”), polylactic acid (“PLA”), and polyester (“PET”) or mixtures thereof. A hot-pressed non-woven fabric composite material prepared from the non-woven fabric composite. | 01-24-2013 |
20130210308 | Renewable Polyester Fibers having a Low Density - Fibers that are formed from a thermoplastic composition that contains a rigid renewable polyester and has a voided structure and low density are provided. To achieve such a structure, the renewable polyester is blended with a polymeric toughening additive in which the toughening additive can be dispersed as discrete physical domains within a continuous matrix of the renewable polyester. Fibers are thereafter formed and then stretched or drawn at a temperature below the glass transition temperature of the polyester (i.e., “cold drawn”). | 08-15-2013 |
20130210309 | MULTILAYER STRUCTURE FOR A VEHICLE INTERIOR MATERIAL, AND METHOD FOR MANUFACTURING - A multilayer structure for a vehicle interior material, and a method for manufacturing same. A multilayer structure for a vehicle interior material comprises: a polypropylene foam sheet; a reinforcement sheet stacked on at least one surface of the polypropylene foam sheet, wherein the reinforcement sheet includes a natural fiber and a synthetic fiber and is produced by being needle-punched and then subjected to a heat roller process; and a coating layer formed on the outer surface of the reinforcement sheet. | 08-15-2013 |
20130252500 | NON-WOVEN FABRIC COMPOSITES FROM COIR FIBERS - A non-woven fabric composite containing coir fibers and a method for producing such composites. The non-woven fabric composite is comprised of coir fibers, which are large diameter, lignin-rich fibers, with a high viscous flow temperature and a high degradation temperature combined with fibers made of a thermoplastic polymer with a lower viscous flow temperature such as polypropylene (“PP”), polyethylene (“PE”), polylactic acid (“PLA”), and polyester (“PET”) or mixtures thereof. A hot-pressed non-woven fabric composite material prepared from the non-woven fabric composite. | 09-26-2013 |
20130260631 | NON-WOVEN FABRIC COMPOSITES FROM COIR FIBERS - A non-woven fabric composite containing coir fibers and a method for producing such composites. The non-woven fabric composite is comprised of coir fibers, which are large diameter, lignin-rich fibers, with a high viscous flow temperature and a high degradation temperature combined with fibers made of a thermoplastic polymer with a lower viscous flow temperature such as polypropylene, polyethylene or a biodegradable thermoplastic polymer fiber such as polylactic acid, or mixture thereof. A hot-pressed non-woven fabric composite material prepared from the non-woven fabric composite. | 10-03-2013 |
20130288556 | DIMENSIONALLY STABLE NONWOVEN FIBROUS WEBS, AND METHODS OF MAKING AND USING THE SAME - Dimensionally stable nonwoven fibrous webs include a plurality of fibers formed from one or more thermoplastic polyesters and an antishrink additive, preferably in an amount greater than 0% and no more than 10% by weight of the web. The webs have at least one dimension which decreases by no greater than 12% in the plane of the web when heated to a temperature above a glass transition temperature of the fibers. The webs may be used as wipes. | 10-31-2013 |
20140235128 | BIOMASS-DERIVED POLYESTER WET-LAID NONWOVEN FABRIC - The present invention has an object to provide staple fibers suitable for manufacturing a wet-laid nonwoven fabric having excellent adhesive strength and heat resistance at a reduced environmental burden, a manufacturing method of the same, and a nonwoven fabric using the staple fibers. The object can be achieved by polyalkylene terephthalate or polyalkylene naphthalate staple fiber wet nonwoven fabric having excellent adhesive strength and heat resistance that are provided by blending and thermal-compression bonding of low oriented yarn and fully oriented yarn, wherein a specific ratio of biomass-derived carbon, fineness, fiber length, and a weight ratio between fully oriented staple fibers and low oriented staple fibers in the wet-laid nonwoven fabric are used to obtain a fine low oriented yarn having excellent binder performance and a fine fully oriented yarn having an unprecedented level of fineness. | 08-21-2014 |
20140273701 | AEROGEL BLANKET AND METHOD OF PRODUCTION - A method of making a nonwoven wet laid aerogel blanket is provided. The aerogel blanket can exhibit improved thermal conductivity, lower corrosivity, lower dust production and a uniform structure. The blanket can be made from an aerogel floc that is formed from a slurry of aerogel particles. | 09-18-2014 |
20140349539 | NONWOVEN FABRIC HAVING IMPROVED AIR PERMEABILITY AND MANUFACTURING METHOD THEREOF - A nonwoven fabric having improved air permeability and manufacturing method thereof are presented. The nonwoven fabric has improved air permeability and is formed with long fiber nonwoven fabric of single or multi layer, wherein the long fiber nonwoven fabric is produced by spinning polytrimethylene terephthalate having viscosity of 0.8 to 1.2 and polyethylene terephthalate having viscosity of 0.6 to 0.8 to sheath/core shape with using each spinneret pack which can spin filaments having different denier from each other and arranged in parallel with each other, and then heat pressing with free-embossing or embossing pattern to bind the filaments. | 11-27-2014 |
20150024650 | FIBER GRADE WITH IMPROVED SPINNING PERFORMANCE AND MECHANICAL PROPERTIES - The present invention is directed to a new polypropylene composition, polypropylene fibres comprising said polypropylene composition, a spunbonded fabric comprising said polypropylene fibres and/or polypropylene composition, an article comprising said polypropylene fibres and/or said spunbonded fabric as well as to a process for the preparation of such spunbonded fabric and the use of such polypropylene composition for improving the stability of a fibre spinning line. | 01-22-2015 |
20150065003 | NONWOVEN FABRIC COMPOSITE AND METHOD FOR MAKING THE SAME - A nonwoven fabric composite includes a spunbond nonwoven fabric layer having a plurality of bonded fibers, an air-laid nonwoven pulp web layer having a plurality of pulp fibers and overlying the spunbond nonwoven fabric layer to cooperatively form an inner laminate with the pulp web layer, and a pair of nonwoven carded fiber web layers each having a plurality of carded fibers. The nonwoven carded fiber web layers sandwich the inner laminate therebetween. The bonded fibers, the pulp fibers, and the carded fibers are entangled with one another. A ratio of tensile strength of the nonwoven fabric composite in a machine direction to tensile strength of the nonwoven fabric composite in a cross-machine direction is not greater than 4. | 03-05-2015 |
20160017518 | Fiber Comprising Polyethylene Blend - The present disclosure is directed to a fiber that is composed of a polymeric blend including (i) 95 wt % to 99 wt % of a high density ethylene-based polymer having a Mw/Mn from 2.0 to 3.0 and (ii) from 5 wt % to 1 wt % of a low density ethylene-based polymer having a melt index from 5 g/10 min to 15 g/10 min. The fiber has a density from 1 denier to 2 denier and a 3% secant modulus from 8.5 g/denier to 20 g/denier. | 01-21-2016 |
20160060116 | METHOD FOR PRODUCING CARBON NANOTUBE ARRAY, SPINNING SOURCE MEMBER, AND STRUCTURE PROVIDED WITH CARBON NANOTUBES - A method for producing a carbon nanotube array is provided as a means for enhancing productivity of a CNT array to be produced by a gas-phase catalyst process and a means for enhancing spinning properties of the CNT array, comprising: a first step for allowing a substrate having a base surface being a surface formed of a silicon oxide-containing material, as at least part of a surface thereof, to exist in an atmosphere including a gas-phase catalyst; and a second step for allowing a material gas and a gas-phase co-catalyst to exist in the atmosphere including the gas-phase catalyst to allow a plurality of carbon nanotubes to grow on the base surface of the substrate to obtain on the base surface the carbon nanotube array formed of the plurality of carbon nanotubes. | 03-03-2016 |
20160201239 | ENTANGLED SUBSTRATE OF SHORT INDIVIDUALIZED BAST FIBERS | 07-14-2016 |
20160376737 | FABRICS AND METHODS OF MAKING THEM FROM CULTURED CELLS - Methods of using of natural or engineered proteins such as collagen to form tanned and/or crosslinked fibers suitable for a wide range of textile manufacturing processes, including non-woven, woven and knitted fabrics. In particular, described herein are methods of forming collagen fibers formed from cell-cultured materials by forming a solution of collagen, tanning agent and in some variations cross-linker, and shortly thereafter, extruding collagen fibers. Also described herein are collagen fibers formed by these methods. | 12-29-2016 |