Abstract: A perineal bandage for preventing and treating tears that occur during childbirth. The perineal bandage includes a flexible bandage having a first side and a second side, wherein the second side includes an adhesive configured to adhere the bandage to the skin of a patient. The perineal bandage may further include a plurality of tearing zones that tear before the bandage. The perineal bandage may further include a reinforced region disposed along a portion of a bottom edge of the bandage, wherein the reinforced region requires a greater amount of force to tear than the bandage and the tearing zones.

Abstract: An absorbent article includes a topsheet, a backsheet, and an absorbent core disposed between the topsheet and backsheet; and a fastening system. The fastening system has a fastening component disposed on an article component. A plurality of layers overlap at least a portion of the fastening component in an overlapping region. The fastening component includes a first plurality of fastening elements integrally formed from a first set of layers and a second plurality of fastening elements integrally formed from a second set of layers.

Abstract: A composite filtering medium comprising a precision fabric, of the type with weft and warp, on the surface of which nanofibres are deposited by electrospinning. A method for producing the composite filtering medium, comprising a step of electrospinning for formation of nanofibres and a subsequent step of deposition of said nanofibres on a base fabric; the method comprises injection of the material for formation of the nanofibres, dissolved in a solvent or mixture of solvents, through a nozzle in order to spread it on an electrode; the method comprising application of a difference of potential between the nozzle and an electrode; the nanofibres being formed as a result of evaporation of the solvent or mixture of solvents, due to the electrical field, and stretching of the polymer deposited on the electrode, by means of the nozzle; the nanofibres thus formed being subsequently stretched and deposited on said base fabric.

Abstract: A spunbond nonwoven textile is made of endless crimped bicomponent or multicomponent filaments having an eccentric core-sheath configuration. The sheath of the filaments in the filament cross-section has a substantially constant thickness of 0.1 to 5 ?m over at least 20% of the filament outer surface.

Abstract: A method of preparing PAN-based carbon fibers relates to the technical field of materials. The method includes: S1. acrylonitrile, a second monomer and an unsaturated UV-sensitive cross-linking agent are mixed, an initiator is then added and a reaction is performed to obtain a meltable PAN-based copolymer; S2. the meltable PAN-based copolymer and a flow modifier are mixed to obtain a mixture, the mixture is extruded and pelletized, and then melt spinning is performed to obtain nascent fibers, the nascent fibers are stretched and annealed to obtain a PAN-based carbon fiber precursor; S3. ultraviolet irradiation is performed on the PAN-based carbon fiber precursor; S4. the PAN-based carbon fiber precursor after ultraviolet irradiation is pre-oxidized and carbonized to obtain PAN-based carbon fibers.

Abstract: A flash spinning method for preparing non-woven fabrics based on microwave thermal fusion, a microwave thermal fusion device, and a non-woven fabric preparation device are provided. The flash spinning method includes: step S1, collecting filament bundles to form a non-woven fabric precursor, adding a microwave heating liquid to the non-woven fabric precursor; the microwave heating liquid being configured to absorb microwave energy and convert the microwave energy into thermal energy; and step S2, performing microwave heating on the non-woven fabric precursor containing the microwave heating liquid obtained in the step S1 to obtain a heated non-woven fabric, and performing a hot press forming treatment on the heated non-woven fabric to obtain a finished non-woven fabric. There is no temperature gradient in layers of the non-woven fabric precursor, thereby significantly improving the peeling strength of the finished non-woven fabric.

Abstract: An absorbent article having a nonwoven topsheet, a backsheet, an absorbent core disposed therebetween, and a fluid management layer disposed between the topsheet and the absorbent core is disclosed. The fluid management layer is an integrated nonwoven material having a basis weight in a range of from 40 gsm to 75 gsm and has 10 percent to about 60 percent by weight of absorbent fibers, from between about 15 percent to about 70 percent of resilient fibers, and from between about 25 percent to about 70 percent stiffening fibers. The absorbent article exhibits a third dose acquisition time of less than 10 seconds, more preferably less than 8 seconds, and most preferably less than 7 seconds, and a Rewet of no greater than 0.40 g, more preferably less than about 0.3 grams, or most preferably less than about 0.2 grams.

Abstract: A method for tuning characteristics of a polyamide nanofiber nonwoven comprising the step of targeting a specific average nanofiber diameter and/or a specific relative viscosity for the polyamide nanofiber nonwoven. The specific average nanofiber diameter is within a range from 100 nm to 1000 nm and/or the specific relative viscosity is within a range from 5 to 75, e.g., from 15 to 50. The process further comprises the steps of extruding a polyamide composition having a moisture content with a pressurized gas through a fiber forming channel having a channel temperature to form the polyamide nanofiber nonwoven having the target average nanofiber diameter and/or relative viscosity and controlling the moisture content, the pressure of pressurized gas, and/or the channel temperature based on the specific average nanofiber diameter and/or the specific relative viscosity.

Abstract: A thermal insulation article includes a thermally insulating pad shaped to be positioned in a cavity of a rectangular prism shipping container. The pad includes a solid compostable panel formed primarily of starch and/or plant fiber pulp that holds together as a single unit, and a water-proof or water-resistant film forming a pocket enclosing the panel. The panel includes a first section, a second section, and a third section connecting the first section to the second section, the first and second section each having a central portion and two flaps that extend from the central portion beyond the third section, and wherein the panel is foldable into an open box.

Abstract: The present disclosure relates to silicone-coated mineral wool insulation materials, methods for making them using specific coating methods, and methods for using them. One aspect of the disclosure is a method for making a silicone-coated mineral wool, the method comprising: providing a mineral wool comprising a collection of mineral wool fibers; applying to the mineral wool a solvent-borne coating composition comprising a silicone, the silicone of the coating composition having a number-average molecular weight of at least 25 kDa; and allowing the solvent to evaporate to provide silicone-coated mineral wool.

Abstract: A method for making nonwoven fabric. The nonwoven fabric can include three-dimensional features that define a microzone comprising a first region and a second region. The first and second regions can have a difference in values for an intensive property. The nonwoven further has a plurality of apertures, wherein at least a portion of the aperture abuts at least one of the first region and the second region of the microzone.

Abstract: A nonwoven web comprising a layer of polymeric fibers, wherein, based on the total number of polymeric fibers, at least 10% the polymeric fibers in said layer are coarse fibers having a fiber diameter of 4 ?m or more, and at least 10% of the polymeric fibers in said layer are fine fibers having a fiber diameter of 2 ?m or less. Also described herein is a method for making the nonwoven web, comprising melt-blowing a polymer mixture comprising two immiscible or partially miscible polymers.

Abstract: A nonwoven fabric. The nonwoven fabric can include a first surface and a second surface and a visually discernible pattern of three-dimensional features on one of the first or second surface. Each of the three-dimensional features can define a microzone comprising a first region and a second region. The first and second regions can have a difference in values for an intensive property, and wherein in at least one of the microzones the first region exhibits a Contact Angle of greater than 90 degrees, as measured by the Contact Angle Test Method detailed herein.

Abstract: A nonwoven fabric. The nonwoven fabric can include a first surface and a second surface and a visually discernible pattern of three-dimensional features on one of the first or second surface. Each of the three-dimensional features can define a microzone comprising a first region and a second region. The first and second regions can have a difference in values for an intensive property, and wherein in at least one of the microzones, the first region is hydrophobic and the second region is hydrophilic.

Abstract: A nonwoven fabric. The nonwoven fabric can include a first surface and a second surface and a visually discernible pattern of three-dimensional features on one of the first or second surface. Each of the three-dimensional features can define a microzone comprising a first region and a second region. The first and second regions can have a difference in values for an intensive property. The nonwoven further has a plurality of apertures, wherein at least a portion of the aperture abuts at least one of the first region and the second region of the microzone.

Abstract: The present invention provides an anisotropic, thermal conductive, electromagnetic interference (EMI) shielding composite including a plurality of aligned polymer nanofibers to form a polymer mat or scaffold having a first and second planes of orientation of the polymer nanofibers. The first plane of orientation of the polymer nanofibers has a thermal conductivity substantially the same as or similar to that of the second plane, and the thermal conductivity of the first or second plane of orientation of the polymer nanofibers is at least 2-fold of that of a third plane of orientation of the polymer nanofibers which is about 90 degrees out of the first and second planes of orientation of the polymer nanofibers, respectively, while the electrical resistance of each of the first and second planes is at least 3 orders lower than that of the third plane. A method for preparing the present composite is also provided.

Abstract: Soft point bonded nonwoven webs, and methods of making the same, are described that utilize a pattern of small, discrete bond points in a sequent pattern that together form macro-elements. The macro-elements are themselves positioned and aligned within a pattern such that mechanical stretching operations on the point bonded nonwoven webs yields soft and bulky fabrics but with reduced incidence of tearing or rupturing of the individual bond points.

Abstract: Disclosed are an embedded co-cured composite material with large-damping and electromagnetic wave absorbing properties and a preparation method and an application thereof, belonging to damping composite materials. The embedded co-cured composite material is formed by interlacing a plurality of electromagnetic wave absorbing prepreg layers and a plurality of electromagnetic wave absorbing damping layers. Each of the electromagnetic wave absorbing prepregs layers includes a fiber cloth, a micro-nano electromagnetic wave absorbing material and a resin. Contents of the micro-nano electromagnetic wave absorbing material in the electromagnetic wave absorbing prepreg layers and the electromagnetic wave absorbing damping layers have a gradient increase or decrease according to a sequence of the electromagnetic wave absorbing prepreg layers. Each of the electromagnetic wave absorbing damping layers includes a viscoelastic damping material and the micro-nano electromagnetic wave absorbing material.

Abstract: Nonwoven fabrics are provided that include at least a first nonwoven layer. The first nonwoven layer includes multi-component fibers densely arranged and compacted against one another. The multi-component fibers comprise at least a first component comprising a first polymeric material including a first polyolefin and a second component comprising a second polymeric material including a second polyolefin, in which the first polymeric material is different than the second polymeric material. The first polymeric material, the second polymeric material, or both include a compatibilizer comprising a copolymer having a comonomer content including (i) at least 10% by weight of the compatibilizer of a first monomer corresponding to the first polyolefin and (ii) at least 10% by weight of the compatibilizer of a second monomer corresponding to the second polyolefin.

Abstract: The present application generally relates to support articles and methods of making and using them. Some embodiments of the support articles of the present disclosure provide compression and/or stabilization to sore joints, tendons, or muscles. In some embodiments, the compression and/or enhanced stabilization is provided, at least in part, by one or more reinforcing portions. In some embodiments, the support articles can easily be applied by a non-trained user and can be worn in many conditions (including, for example, in the shower or during exercise) for up to three days. In some embodiments, the support articles or support articles also have a relatively slim profile and are thus discreet such that they can be worn under clothing without being noticeable. In some embodiments, the support articles eliminate or reduce joint or muscle pain or soreness.

Abstract: The present invention provides a sheet-like material having soft texture, durability capable of withstanding practical use, and abrasion resistance. The sheet-like material of the present invention is a sheet-like material containing a nonwoven fabric composed of an ultrafine fiber having an average single fiber diameter 0.

Abstract: The present invention relates to methods of producing polymer fibers and polymer fiber products and materials recovery from these processes. It is an object of this invention to produce polymer fibers and products that include these fibers using selective dissolution of multicomponent fiber and to recover the dissolved polymer and solvent for subsequent use.

Abstract: Embodiments of the present disclosure are directed ethylene/alpha-olefin interpolymer compositions including a polyethylene and an alpha-olefin comonomer, where the polyethylene is from 70 wt % to 100 wt % of the interpolymer composition based on a total weight of the interpolymer composition and the interpolymer composition is characterized by a Comonomer Distribution Constant (CDC) in a range of from 100 to 500, a vinyl unsaturation of less than 0.15 vinyls per one thousand total carbon atoms present in the interpolymer composition, a zero shear viscosity ratio (ZSVR) in a range from 1.5 to 5, a density in a range of from 0.903 to 0.950 g/cm3, a melt index (I2) in a range of from 0.1 to 15 g/10 minutes, a molecular weight distribution (Mw/Mn) in a range of from 1.8 to 4.5, and a separation index of from 0.50 to 1.10.

Abstract: The present invention provides an electret fiber sheet having superior recovery of airflow volume by heat treatment and having high air permeability. The electret fiber sheet of the present invention is a nonwoven fabric formed from long fibers that are formed from a thermoplastic resin and have an average single fiber diameter of 0.1 to 8.0 ?m, wherein a bulk density of the nonwoven fabric is 0.05 to 0.30 g/cm3 and the long fibers contain a crystal nucleating agent at 0.005 to 1.0% by mass.

Abstract: An object of the present invention is to provide a stretchable structure that has stretchability together with high stress relaxation properties, and provides fit feeling with less tightening by recovering slowly after stretching. The object is achieved by a stretchable structure having the following characteristics: a tensile permanent set (PS10M) of 1% or more and 50% or less, wherein the tensile permanent set (PS10M) is a value obtained 10 minutes after 150% elongation at a tension rate of 200 mm/minute in accordance with JIS K7127, and a ratio PS1M/PS10M of 1.10 or more, wherein the PS10M is the tensile permanent set obtained 10 minutes after the elongation and the PS1M is the tensile permanent set obtained 1 minute after the elongation.

Abstract: Provided is a molded body of a resin composition, which has improved easy wiping-off properties and scratch resistance. This resin composition contains (1) a thermoplastic resin and (2) a fluorine-containing copolymer; and the fluorine-containing copolymer (2) is a copolymer which comprises (a) a repeating unit formed from a fluorine-containing monomer represented by formula CH2?C(—X)—C(?O)—Y—Z—Rf, and (b) a repeating unit formed from a non-fluorine monomer having a hydrocarbon group with 14 or more carbon atoms, and which has a weight average molecular weight of 2,500-20,000.

Abstract: It is an object of the present invention to obtain crimped conjugated fibers having excellent crimp properties. The present invention provides a crimped conjugated fiber having a crimpable cross-sectional configuration, wherein a cross section of the fiber includes at least two portions: a portion (a) and a portion (b); the portion (a) includes an olefin polymer (A) and the portion (b) includes an olefin polymer (B); the olefin polymer (A) differs from the olefin polymer (B) in at least any one of Mz/Mw, melting point and MFR; and a specific fatty acid amide is added to the olefin polymer (A) and/or the olefin polymer (B). The present invention also provides a non-woven fabric including said crimped conjugated fiber.

Abstract: Filter pipette tip with a small tube with a relatively large aperture at one end for attaching to a pipette, a relatively small aperture at the other end for the passage of liquid and a through-channel between the large aperture and the small aperture and a porous filter arranged in the through-channel, filling up a portion of the through-channel and comprising at least two layers arranged in series in the direction of the through-channel of which a fine-pore layer has a pore size of a maximum of approximately 20 ?m and a coarse-pore layer a pore size of approximately 20 to 50 ?m, the two layers having different pore sizes.

Abstract: Compositions of biobased polymer blends of polymers of polybutylene succinate (PBS) or polybutylene-adipate-terephthalate (PBAT) and a polyhydroxyalkanoate copolymer are described. In certain embodiments, the copolymer is a multiphase copolymer blend having one phase a glass transition temperature of about ?5° C. to about ?50° C. Methods of making the compositions of the invention are also described. The invention also includes articles, films and laminates comprising the compositions.

Abstract: The present invention includes a moldable, flame retardant acoustical fiber system including a nonwoven, moldable layer of a blend of fibers, with a flame retardant coating applied on both top and bottom sides of the moldable layer. The system also includes a spun bond nonwoven black surface adhered to the flame retardant coating on one side of the nonwoven layer. The moldable, flame retardant acoustical fiber system is configured to meet the UL 94 V-0 flame test standard.

Abstract: Non-woven fabrics are made in a spun-melt process, in which a PLA resin blend is melt-spun into filaments, which are pneumatically drawn and then deposited onto a surface to produce the fabric. The PLA resin includes 1-25% of certain aliphatic or aliphatic-aromatic polyesters that have a number average molecular weight from 4,000 to 70,000 g/mol.

Abstract: An insect repellent compound that includes naturally occurring oil that emits an odor which repels insects is described. The compound is not harmful to animals, to humans or to the environment. The compound may be incorporated into materials such as yarn that is woven to form a mesh. The material may be used for making an animal mask, for screen doors and other applications. A method of making the compound and incorporating it into materials and products is described.

Abstract: A method of making a biocompatible, implantable medical device, including a vascular closure device is disclosed. The method includes forming a biocompatible polymer into at least one fiber and randomly orienting the at least one fiber into a fibrous structure having at least one interstitial spaces. Polymeric materials may be utilized to fabricate any of these devices. The polymeric materials may include additives such as drugs or other bioactive agents as well as antibacterial agents. In such instances, at least one agent, in therapeutic dosage, is incorporated into at least one of the fibrous structure and the at least one fiber.

Abstract: The invention concerns a hygiene product comprising at least one layer of a nonwoven wherein the nonwoven layer comprises man-made cellulosic fibers wherein the layer or the layers has or have a rewet value of equal to or less than 30% and a liquid strike through time of equal to or less than 6 seconds for the use in disposable hygiene products, such as diapers, feminine pads and incontinence products or in wet wipes like toilet wipes, facial wipes, cosmetic wipes, baby wipes and sanitary wipes for cleaning and disinfection.

Abstract: A bi-component fiber (1), in particular for the production of spunbond fabrics (4), has a first component (2) and a second component (3), whereby the first component (2) has a first polymer as an integral part and the second component has a second polymer as an integral part. It is provided that the difference between the melting points of the first component (2) and the second component (3) is less than or equal to 8° C.

Abstract: A bi-component fiber (1), in particular for the production of spunbond fabrics (4), with a first component (2) and a second component (3), whereby the first component (2) has a first polymer as an integral part and the second component has a second polymer as an integral part. It is provided that the difference between the melt-flow indices of the first component (2) and the second component (3) is less than or equal to 25 g/10 minutes and that the melt-flow indices of the first component (2) and the second component (3) in each case are less than or equal to 50 g/10 minutes.

Abstract: A bi-component fiber (1), in particular for the production of spunbond fabrics (4), with a first component (2) and a second component (3), whereby the first component (2) has a first polymer as an integral part and the second component has a second polymer as an integral part. The first component (2) has an additive, and the second component (3) has a percentage by weight of the additive that is smaller than that in the first component (2).

Abstract: A composite material assembly (1) comprises a) a surface enhancing layer (5) comprising at least one layer of fibers, having a length to width aspect ratio of more than 5:1 and b) a structural layer (7) comprising at least one reinforcing fiber and at least one polymeric matrix.

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

Abstract: Fibers having two or more alternating polymer layers are formed by co-extrusion followed by electroprocessing. The fibers can be used as a non-woven mat or other substrate for a variety of applications. Delamination of the fibers using ultrasonication yields separated, micro and nanolayer, fiber ribbons which may also be used a non-woven mat or other substrate.

Abstract: The present invention relates to a new bicomponent fiber, a nonwoven fabric comprising said new bicomponent fiber and sanitary articles made therefrom. The bicomponent fiber contains a polyethylene-based resin forming at least part of the surface of the fiber longitudinally continuously and is characterized by a Co-monomer Distribution Constant greater than about 45, a recrystallization temperature between 85° C. and 110° C., a tan delta value at 0.1 rad/sec from about 15 to 50, and a complex viscosity at 0.1 rad/second of 1400 Pa·sec or less. The nonwoven fabric comprising the new bicomponent fiber according to the instant invention are not only excellent in softness, but also high in strength, and can be produced in commercial volumes at lower costs due to higher thoughputs and requiring less energy.

Abstract: The present invention relates to a fiber assembly obtained by electrifying a resin in a melted state by application of voltage between a supply-side electrode and a collection-side electrode so as to extend the resin into an ultrafine composite fiber by electrospinning, and accumulating the ultrafine composite fiber, wherein the ultrafine composite fiber includes at least two polymeric components and the ultrafine composite fiber includes at least one type of composite fiber selected from a sea-island structure composite fiber and a core-sheath structure composite fiber as viewed in fiber cross section, at least one selected from an island component and a core component has a volume specific resistance of 1015?·cm or less, and at least one selected from a sea component and a sheath component has a volume specific resistance exceeding 1015?·cm.

Abstract: A multicomponent fiber having an exposed outer surface with the fiber having at least a first component of polyarylene sulfide polymer; and at least a second component of a thermoplastic polymer free of polyarylene sulfide polymer, wherein said thermoplastic polymer forms the entire exposed surface of the multicomponent fiber and is a copolymer of norbornene with polyethylene.

Abstract: The present invention provides multicomponent thermoplastic fibers that are biodegradable and that are capable of forming strong bonds in air bonding processes. In various embodiments, the multicomponent fibers can include a first polymer component that includes a first aliphatic polyester, and a second polymer component also including an aliphatic polyester, wherein the first polymer component comprises at least a portion of an exposed surface of the multicomponent fiber. The first polymer component can be a fully amorphous polylactic acid and the second polymer component can be a semicrystalline polylactic acid. The multicomponent fiber can have cross-sectional area comprising the first polymer component and the second polymer component in about a 1:1 ratio, wherein the first polymer component and the second polymer component are configured in a sheath/core arrangement.

Abstract: The instant invention provides bi-component fibers and fabrics made therefrom. The bi-component fiber according to the present invention comprises: (a) from 5 to 95 percent by weight of a first component comprising at least one or more first polymers, based on the total weight of the bi-component fiber; (b) from 5 to 95 percent by weight of a second component comprising at least an ethylene-based polymer composition, based on the total weight of the bicomponent fiber, wherein said ethylene-based polymer composition comprises; (i) less than or equal to 100 percent by weight of the units derived from ethylene; and (ii) less than 30 percent by weight of units derived from one or more ?-olefin comonomers; wherein said ethylene-based polymer composition is characterized by having a Comonomer Distribution Constant in the range of from greater than from 100 to 400, a vinyl unsaturation of less than 0.

Abstract: A non-woven mono-component, mono-constituent poly lactic acid (PLA) web is disclosed. The web material is useful for production of tea bags and other infusion beverages. The nonwoven network of PLA fibers in mono-component, mono-constituent configuration provides infusion properties, strength and weight properties that surpass current beverage bags and pouches because of its unique composition and structure.

Abstract: The invention is directed to coextruded tapes, films, yarns and the likes of polylactic acid (PLA) and methods of preparation thereof. The present invention is directed to an extruded tape, film or yarn comprising a first phase, in particular a first layer, based on PLA and a second phase, in particular a second layer, also based on PLA, but having different sealing properties, wherein the peak melt temperature or seal initiation temperature of the second layer is lower than the peak melt temperature and/or the melt seal initiation temperature of the first layer, or wherein the Vicat softening point of the second layer is lower than the Vicat softening point of the first layer.

Abstract: Composite materials having favorable acoustic and vibration damping properties, while maintaining or improving other composite mechanical properties, include an interleaf layer comprising at least two different nonwoven materials in a specific sequence such that a gradient is formed in the z direction upon curing or an interleaf with a compositional gradient within its structure such that a resin interpenetration gradient is achieved upon curing. Composite materials that contain multilayered nonwoven interleaves are useful, for example, in structures found in aircrafts, such as fuselage skins, stringers and frames. Also contemplated are methods of making the composite material and the structures and aircrafts that contain the composite material.

Abstract: A polyester or polyester copolymer based composition, such as a polylactic acid based composition, is provided herein. The polyester or polyester copolymer based composition may include a plasticizer, such as an ether based, an ester based, and/or an ether-ester based plasticizer.

Abstract: The present invention relates to a fiber having starch and a high polymer, and a web employing such a fiber.