Abstract: A filtration fabric which is composed of 15.0 to 100.0% binder fiber, 0.0 to 85.0% pulp portion, 0.0% to 15.0% latex binder or other stiffening agent. A filter media made of the fabric has an improved flow rate averaging no more than 21 seconds, while maintaining an average sediment retention of 70% and minimum wet burst strength of about 40 psi to about 50 psi, preferably about 50 psi.

Abstract: A high specific strength, light-weight, low elongation, high peeling strength and burst strength imitation leather with suede hand touch or embossed pattern suitable for manufacturing of gloves, garments, shoes, bags, wallets, couches, seat cover, suitcases, balls and the like, by mixing an adhesion fiber with regular fiber or microfiber to mechanically form nonwoven, then filled with PU composition to become the base material, the surface of the base material is either ground, embossed or bound with a release paper to be coated with PU epoxy composition, or at lease one PU layer with micro-pores is applied on the surface of the base material before the grinding, embossing, or binding.

Abstract: A targeted elastic laminate material having different zones of tension across a width of a material roll and methods for making the same. At least two polymers or polymer blends having different set properties are used to produce varying tension zones across the material. The targeted elastic laminate material has elastic properties that provide improved fit characteristics to disposable personal care products, while maintaining a flat roll profile that allows the material to be easily processed at a high speed.

Abstract: Disclosed is an absorbent material which is used as ink pads of ink-jet and bubble-jet printers, various building materials and materials for civil engineering work, said absorbent material comprising a non-woven fabric containing water-absorptive fibers, wherein a water absorption percentage is not less than 400% by weight and a change in volume is less than 10% in a state where water is absorbed in the amount of not less than 400% by weight.

Abstract: This invention concerns lasable bond-ply materials comprising a nonwoven reinforcing material and at least one resin material. The present invention also includes methods for using the bond-ply of this invention to manufacture high density multilayer printed wiring boards.

Abstract: A spun nonwoven fabric contains monofilaments and bicomponent filaments, the spun nonwoven fabric having, over its cross section, different quantities of the bicomponent filaments. The bicomponent filaments contain at least two outward-facing segments made of a binding component. The proportions of bicomponent filaments over the cross sectional planes of the spun nonwoven fabric can be in a range of approximately 1% to 100% by weight. The cross sectional planes of the nonwoven fabric containing the different proportions of bicomponent filaments transition into one another without detectable phase boundaries. The apparatus for manufacturing the nonwoven fabric contains at least one, and may contain up to forty or more, spinneret devices, such as rectangular spinneret plates or round spinneret disks. The spinneret devices may be arranged in rows or in staggered arrangement above a linearly moving collector belt.

Abstract: Disclosed is a liquid absorbing body and a method of manufacturing the liquid absorbing body which has an excellent swelling property and absorbed liquid holding ability in a vertical state and which is suitable to a mass production at a low manufacturing cost. This liquid absorbing body includes natural cellulose fibers and/or synthetic fibers, a thermally fusible material and a thickening material. This liquid absorbing body is formed by defibering natural cellulose fibers and/or synthetic fibers, a thermally fusible material and a thickening material in air and mixing them to form a mat, heating thus formed mat at a temperature higher than a fusible point of the thermally fusible material and then fixing the thickening material in a web by compressing the mat with a press roller.

Abstract: A rigid air duct is provided for conducting flowing air. The air duct includes a fiber glass board that is deformed to define a channel for conducting flowing air. A mat facing is adhered to an interior surface of the board and is made of a fabric including glass fibers. Uncured portions of a binder material in the fiber glass board are heated and cured to adhere the mat facing to the board.

Abstract: A spunbond nonwoven fabric is provided which has superior strength characteristics to conventional fabrics yet is comparably soft. The fabric is a laminate having a web made from a high melt flow rate polyolefin polymer and a low melt flow rate polymer. The spunbond laminate fabric of this invention may have therebetween a layer of meltblown nonwoven fabric or film. The laminate produced according to this invention has a strength which is at least 10% greater than a comparable fabric made without the high melt flow rate polymer web. The nonwoven fabric of this invention may be used in products such as, for example, garments, personal care products, medical products, protective covers and outdoor fabrics.

Abstract: A non-woven fabric comprising a principal component of para-aramid fiber chops bonded with each other by a binder, the para-aramid fiber chops having a mixture of (a) poly-p-phenylene-3,4′-diphenylether-terephthalamide fibers and (b) poly-p-phenylene-terephthalamide fibers and having a blend ratio by weight of (a)/(b)=10/90˜90/10 and preferably (a)/(b)=30/70˜70/30.

Abstract: A short fiber-containing down-feather wadding in which the short fibers are entangled in barbs of the down-feathers. In this wadding, the short fibers are uniformly mixed with the down-feathers, and the properties of the down-feathers, and the short fibers are effectively imparted to the wadding.

Abstract: An article for absorbing fluid includes a fluid-storage region and a fluid receiving region. The fluid receiving region releases fluid to the fluid storage and has a dry laid web of staple fibers with a high bulkiness. The article may be used for treating female incontinence.

Abstract: The invention includes fibrous nonwoven multiple layer mats having at least two layers with a body portion layer and a surface portion layer having fine fibers and/or particles therein, both layers being bonded together and to each other with a same resin binder. Preferably most or essentially all of the particles and/or fibers in the surface layer are larger than openings between the fibers in the body portion of the mat. The mats produced according to this invention are useful as a facer for all types of boards such as wood boards, wood product boards, insulating boards and hard boards of all types, and also as reinforcement and dimensional stabilizers for making a large number of novel laminate products and for a myriad of other uses. These mats are made on a wet laid nonwoven mat machine with a modification to the binder preparation system, an inventive step in the preparation of the binder and in the selection of ingredients for a binder slurry.

Abstract: The invention relates to a fibrous acoustical material for reducing noise transmission. This fibrous acoustical material comprises first, second and third fibers. The first fiber has a first fineness of 1.5-20 deniers and a first softening point. The second fiber has a second fineness of 1.5-15 deniers. At least a surface of the second fiber has a second softening point which is at least 30.degree. C. lower than the first softening point. The third fiber has a third fineness of 1.5-15 deniers. At least a surface of the third fiber has a third softening point which is lower than the second softening point and at least 80.degree. C. lower than the first softening point. The first, second and third fibers are respectively in amounts of 10-90 wt %, 5-85 wt % and 5-85 wt %, based on a total weight of the first, second and third fibers. The first, second and third fibers are each within a range of from 20 to 100 mm in average fiber length. The fibrous acoustical material has an average apparent density of from 0.

Abstract: Disclosed herein is an entangled nonwoven composite made from absorbent fibers such as wood pulp fibers and matrix fibers such as polyolefin staple fibers. The absorbent fibers are entangled with the matrix fibers in such a manner so that the composite has an absorbent-rich side and a matrix-rich side. Intermediate the two exterior sides there is an entangled interior portion made from a mixture of the absorbent and matrix fibers. The composite is particularly well-suited for use in multifunctional handling of fluids such as, for example, body fluids which are absorbed by personal care absorbent articles. The matrix fiber portion of the composite acts as a fluid intake region while the absorbent fiber portion acts as a fluid retention region and the portion of the composite intermediate the two exterior surfaces acts as a fluid transfer region.

Abstract: The present invention relates to a fibrous base material comprising a primary layer of less fibrillated aramid fibers, carbon particles, carbon fibers, phenolic novoloid fibers, and at least one filler material, optionally cotton fibers, and a secondary layer of carbon particles on at least one surface of the fibrous base material for use in a non-asbestos friction material. In certain embodiments, the fibrous base material is impregnated with a phenolic or phenolic-based resin material, including, for example, a mixture of a phenolic resin and a silicone resin to form a friction material having an extended high speed durability life, good "break-in" characteristics, good heat dissipation characteristics, and good noise or squawk resistance.

Abstract: This invention relates to a filter and a method of making a filter. The filter is made of randomly orientated fibers made from an interpenetrating network formed from at least two polymers which are substantially water soluble in their salt form and which ionically interact in an aqueous solution to form the interpenetrating network. The filter is made without organic solvents, particularly, volatile organic compounds, and the filter is sufficiently water soluble to biodegrade upon disposal. A desired use of the filter is a cigarette filter.

Abstract: There is provided a fully elastic, breathable, barrier fabric comprising a nonwoven web layer of fibers of less than 40 microns in average diameter, where the web has a hydrohead of at least 10 mbar, a Frazier Permeability of at least 100 CFM, a basis weight of less than 68 gsm and which is made from an elastic polymer. If the fabric is a laminate it may be an SMS, SBL or NBL laminate. This fabric is particularly well suited to use as a containment flap for personal care products such as diapers, incontinence products and feminine hygiene products and in infection control products.

Abstract: A laminate base material of aromatic polyamide fiber non-woven fabric which comprises a combined non-woven fabric of para-aramid fibers and meta-aramid fibers bonded with each other by a resin binder such as an epoxy resin binder and meta-aramid fibres being thermally adhered to each other and meta-aramid fibers being thermally adhered to para-aramid fibers while they are passing through a pair of thermal rolls and heated and pressed by them and the meta-aramid fibers being included preferably by 5 through 30 weight %.

Abstract: The invention relates to a fabric used for preparing a base member of a trim member. This fabric is prepared by heating a mixture of a vegetable stiff fiber and a thermoplastic fiber. With this heating, the thermoplastic fiber becomes soft, and thus the vegetable stiff fiber and the thermoplastic fiber are united together. Examples of the vegetable stiff fiber are hemp fiber, coconut fiber and bamboo fiber. An example of the thermoplastic fiber is a composite fiber made of polyethylene and polypropylene. The fabric is superior in strength and workability and becomes advantageously low in heating temperature for molding the fabric.

Abstract: A nonwoven composite web suitable for use as a battery separator is formed by a wet process on a papermaking machine. The nonwoven composite material is made from a furnish of nylon binder fibers and nylon staple fibers. The web coming off the papermaking machine is dried using infra-red dryers followed by heated dryer cans. After drying, the web is thermally bonded using heated calendar rolls. The nylon binder fibers melt as the web passes through the calendar rolls and thermally bond the nylon staple fibers of the web when the melted binder fiber material fuses upon cooling. The use of dryer cans to dry and partially bond the web eliminates the need for surfactant treatment to improve potassium hydroxide absorption.

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

Abstract: A water-disintegrable sheet having biodegradability. The sheet comprises one or more kinds of biodegradable synthetic fibers, and one or more kinds of natural fibers and/or regenerated fibers, all the fibers being bound together by a binder such that the binding power of the binder will be substantially lost in water. The sheet has a given degree of tensile strength and good softness, coupled with a required degree of liquid absorbency, and still has some biodegradation property. Therefore, the sheet can be flushed in a flush toilet without involving any appreciable increase in the volume of solid residues in a septic tank and/or in a sewage disposal plant and is therefore suitable for use in the form of a wet wiper in particular.

Abstract: Non-woven fiber fabrics are described, suitable for use in self-supporting dust filter units having at least one passage (10) defined by wall portions (12) made from air permeable fiber fabric through which wall portions (12) air can pass a d be drawn off along the passage (10) but which prevent the passage therethrough of dust and/or other debris carried by the air. The non-woven fabrics are blends of high temperature resistant fibers. A preferred blend consists of 50% by weight polyimide fibers and 50% by weight aramid fibers, but may include glass fibers, polytetrafuoroethylene fibers, or others and may optionally include an amount of heat activated fibers having a relatively high melting point for example, polyphenylene sulphide fibers.

Abstract: Articles made from melamine fibers and aramid fibers are dyed at selected conditions and with selected dyes such that the aramid fiber is dyed but the melamine fiber is not.

Abstract: An anisotropic elastic web, particularly an anisotropic elastic film layer having a machine direction and a cross direction and having a thickness of from 20 to 300 microns formed of an extruded blend of a block copolymer elastomer portion and a polyolefin polymer portion blended in a ratio of from 10:1 to 0.4:1, respectively. The elastomer portion generally is a block copolymer elastomer formed of A blocks and B blocks, the A blocks are formed predominately of monoalkenyl arene and the B blocks are formed predominately of conjugated diene. The polyolefin portion is comprised predominately of an inelastic fiber forming polyolefin polymer, copolymer or blend. The anisotropic film layer has a F10 force Ratio (MD to CD) of at least 1.5. This anisotropic elastic web is usable in a variety of garment applications where an elastic is supplied in roll form and requires strength in a machine direction and elastic properties in a cross direction.

Abstract: A web, formed from dielectric fibers and non-dielectric fibers, which has been subjected to corona discharge to improve the particulate filtration properties of the web is provided. The dielectric and non-dielectric fibers may be intermingled within the web such that the distribution of the dielectric and non-dielectric fibers within the web is generally uniform. In one embodiment, the dielectric fibers may be formed from a thermoplastic polymer, and particularly polyolefin and the non-dielectric fibers may be formed from cellulose, and particularly wood pulp.

Abstract: A method for producing asphalt fibers includes supplying molten asphalt to a rotating asphalt spinner, centrifuging asphalt fibers from the asphalt spinner, and collecting the asphalt fibers. The molten asphalt is supplied to the asphalt spinner at a temperature within the range of from about 270.degree. to about 500.degree. F. Also disclosed is a method for integrating asphalt with reinforcement fibers including the steps of establishing a downwardly moving veil of reinforcement fibers, such as glass fibers, and centrifuging asphalt fibers from a rotating asphalt spinner positioned within the veil of reinforcement fibers to integrate the asphalt with the reinforcement fibers. A method for making an asphalt roofing shingle includes the steps of assembling together a mat of asphalt fibers with a mat of reinforcement fibers, coating the assembled mats to form an asphalt coated sheet, applying granules to the asphalt coated sheet, and cutting the asphalt coated sheet into roofing shingles.

Abstract: A nonwoven web having improved particulate barrier properties is provided. A surface treatment having a breakdown voltage no greater than 13 KV direct current is present on the nonwoven web. The particulate barrier properties are improved by subjecting said surface treatment treated nonwoven web to corona discharge.

Abstract: Articles made from melamine fibers and aramid fibers are dyed at selected conditions and with selected dyes such that the aramid fiber is dyed but the melamine fiber is not.

Abstract: A nonwoven fabric characterized in that it contains:1) a fiber comprising a copolymer of propylene and ethylene; and2) a fiber comprising a polypropylene homopolymer is disclosed.

Abstract: This invention relates to a filter and a method of making a filter. The filter is made of randomly orientated fibers made from an interpenetrating network formed from at least two polymers which are substantially water soluble in their salt form and which ionically interact in an aqueous solution to form the interpenetrating network. The filter is made without organic solvents, particularly, volatile organic compound, and the filter is sufficiently water soluble to biodegrade upon disposal. A desired use of the filter is a cigarette filter.

Abstract: The present invention relates to a nonwoven fabric including a fine denier filament having a plexifilamentary structure in which the disadvantages of polyolefins and of polyesters are offset each other while advantages of them are well utilized with a fine fibrillated structure comprising said filament. The filament comprises a mixture which is at least composed of polyolefin and polyester which are immiscible with each other and has a plexifilamentary structure. The filament is so highly fibrillated that the fibril has not been available yet and, in addition, the filament is with high strength and modulus and exhibits a good dyeing ability. The above-mentioned nonwoven fabric contains the filaments having a plexifilamentary structure in which a mixture of polyolefin and polyester which are immiscible with each other in a mixing ratio within a range of from 5/95 to 95/5 by weight and said filaments are entirely or partially bonded.

Abstract: A rigid fiber glass duct board for air ducts in which the air contacting surface is a mat facing formed from a saturated polyester/glass mat which presents a smooth surface to flowing air and hence avoids surface degradation at very high air velocities. A method of forming such a board is also disclosed.

Abstract: A wholly aromatic polyamide staple fiber fabric having excellent insulation and superior dimensional stability at a high temperature and/or a high humidity, includes 70 to 96 parts by weight of a staple fiber web made from a blend of 5 to 30% by weight of m-type wholly aromatic polyamide staple fibers and 70 to 95% by weight of p-type wholly aromatic polyamide staple fibers, and 4 to 30 parts by weight of an organic resin binder incorporated into the staple fiber web.

Abstract: Robust, large area selective infrared line emitters can be made using composites of rare earth metal oxide fibers dispersed and interlocked in a network of connected structure-forming fibers, especially alumina fibers, where the fibers are adhesively connected by a ceramic bonding agent. Articles where the composite is formed of rare earth metal oxide fibers in a network of alumina fibers and where the two types of fibers are connected by alumina a the ceramic bonding agent show narrow bandwidth emissions with good thermal conversion efficiencies and with improved tensile strength and lower brittleness than in the absence of the ceramic bonding agent.

Abstract: The present invention teaches a textile structure and method of making thereof which is useful for fire blocking a structure and insulating it from sound and heat. The textile structure includes at least one composite having three layers which are placed upon one another to form top, middle and bottom layers. The middle layer is a densified matt or batting having at least 10% by weight of carbonaceous fibers. The top and bottom layers are less densified matts or battings which have at least 10% by weight of carbonaceous fibers. Multiple composites may be secured together for increased protection against fire, sound and heat.

Abstract: A flame retardant biodegradable non-woven article which is safe and comfortable to wear as apparel can be fabricated from a flame retardant non-woven textile. The flame retardant non-woven textile is prepared by bonding a fleece comprising cellulosic fibers incorporating at least one phosphorous containing flame retardant compound.

Abstract: A mat made on the basis of a nonwoven comprising fibrous parts predominantly of plastic which are in part thermoplastic and of low-melting point and in part high-melting point, and wherein coherence is obtained by superficial melting of the low-melting point thermoplastic fibers.

Abstract: The present invention provides a splittable conjugate fiber containing at least two incompatible polymers that are arranged in distinct segments across the cross-section of the fiber, wherein the segments are continuous along the length of the fiber. The fiber can be characterized in that the segments of the fiber dissociate in less than about 30 seconds when contacted with a hot aqueous fibrillation-inducing medium. The invention also provides a fabric containing the split fibers produced from the precursor splittable conjugate fiber and laminates containing the split fiber fabric. Additionally provided is a process for producing the split fibers.

Abstract: A method for manufacturing a mineral fiber product includes establishing a stream of mineral fibers, directing polymeric fibers toward the stream of mineral fibers to cause intermingling of the polymeric material, and applying heat to the polymer fibers so that some of them become softened to the extent that they lose their fibrous form and become attached to the mineral fibers as non-fibrous particles, whereas some of the polymer fibers retain their fibrous form.

Abstract: Described is a rollable thermal insulation comprising synthetic fiber material and having a thermal conductivity of not more than 0.04 W/m*K (determined in accordance with DIN 4108 Part 1) and a DIN 4102 Part 1 fire behavior corresponding to building material class B1, wherein the synthetic fiber material is composed of carrier and bonding fibers made of polyester, preferably polyethylene terephthalate, the bonding fibers consisting in at least parts of the surface of a polyester having a melting point which is below the melting point of the carrier fibers.

Abstract: A fibrous, non-woven thermal insulation comprises synthetic polymeric resin microfibers, staple fibers and bonding fibers which are randomly oriented and randomly intermingled in a single layer. The microfibers comprise between 0% and 95% by weight virgin synthetic polymeric resin and between 5% and 100% by weight recycled polyethylene teraphthalate. In one embodiment the microfibers have an average diameter between 1 to 10 microns and comprise between 5% and 80% by weight of the insulation; the staple fibers have an average diameter between 10 and 30 microns and comprise between 5% and 90% by weight of the insulation; and the bonding fibers have an average diameter between 0.9 and 15 denier and comprise between 5% and 95% by weight of the insulation. The bonding fibers have thermoplastic surfaces with a lower temperature softening point than the microfibers and staple fibers and bond the fibers together to form the insulation material.

Abstract: An adsorber material for collecting, concentrating and/or recovering gaseous and/or particle-shaped trace substances from an air or gas flow, in which the adsorber material is composed of fibrous elements made of natural and/or synthetic, organic, textile fibers which are worked into a nonwoven web having a planar geometry, the nonwoven web having a thickness of between 100 .mu.m and 2 mm and a weight per unit area of between 20 and 200 g/m.sup.2. Preferably the fibers have a fiber size between 1 and 10 dtex and are composed of cellulose and/or polyester, and if desired, the fibers may be provided with a binding agent and/or a moisture resistance agent. In preferred embodiments the nonwoven adsorber web is a fiber mixture of 80 parts polyester fibers, 20 parts viscose rayon staple fibers, and 20 parts polyvinyl alcohol fibers or a fiber mixture of 50 parts viscose rayon staple fibers and 50 parts linters, which are provided with an epichlorohydrin resin binder.

Abstract: A fibrous structure including a carded web of fibers that have higher individual-fiber linear density and which exhibit a spring characteristic. The web is sprayed with glass fibers or continuous glass filaments that randomly spread out flat on the web, and the web is subsequently needle-punched through a surface thereof to drive the glass fiber or glass filaments through the thickness of the web such that the glass fibers or glass filaments emerge through an opposite surface of the web.

Abstract: The invention features a nonwoven composite material which includes a layer of staple fiber aligned surface-to-surface with a spunbonded continuous filament web layer, the layers being continuously thermally bonded.

Abstract: A nonwoven fabric having good heat bondability which is suitable for use as interlining and cushioning material, and a binder fiber for use in such nonwoven fabric. The binder fiber is a polyester copolymer which includes .epsilon.-caprolacton as a polyester component and has a melting point of not less than 100.degree. C. In the nonwoven fabric, principal fibers are bonded by the binder fiber. The nonwoven fabric has soft feel and is highly resistant to flattening during prolonged use or while in use under high temperature atmosphere.

Abstract: A process is provided for preparing recyclable reinforced composite structures having enhanced surface appearance by heating a self-supporting porous batt comprised of an intimate homogenous blend of high modulus reinforcing fibers and thermoplastic resin fibers to a temperature sufficient to melt the resin component and convert the batt into moldable form, placing the moldable batt into a heated mold to flow, solidify and substantially crystallize the component, introducing a thermosetting resin-containing coating material into the mold adjacent at least one surface of the crystallized structure to provide a coating on the one surface and dwelling the coated structure in the mold for a time sufficient to set the coating material.

Abstract: Nonwoven sheet materials, and pressure sensitive adhesive tapes formed from nonwoven sheet materials are provided. The nonwoven sheet materials comprise a randomly interlaced fibrous web of tensilized nonfracturable staple fibers and binder fibers, wherein the fibrous web is pattern embossed, and is interbonded by a chemical bonding agent, physical entanglement, or a combination thereof, and further wherein the nonwoven sheet material is readily finger-tearable in the cross web direction. Methods of making nonwoven sheet materials and adhesive tapes are also provided.

Abstract: An absorbent material suitable for use as a medical or hygienic absorbent and comprises a non-woven fibre sheet having dense surface layers 10 and between these layers a less dense region where most of the fibres extend in the plane of the sheet. Transversely extending fibres 16 help to bind the material, the fibres also being bonded to some extent by a hot melt bonding material, e.g. core/sheath-type bi-component fibres. The material is made by forming a blend of fibres, including a minor weight of hot melt fibres, by cross-lapping a plurality of layers 14 to form a web, subjecting the web to needling at low punch density with penetration through the web, thereafter subjecting surface regions 10 of the web to higher punch density needling to form the dense surface layer 10 at each face from the web. The web is then heated, e.g.