D04H1/5418

Polishing pad and method for manufacturing same

The present invention addresses the problem of providing: a polishing pad that is long-lasting, has a high polish rate, and is capable of producing a high degree of flatness on polished articles; and a method for manufacturing the polishing pad. The solution provided is to eliminate a sea component from a non-woven fabric that includes a binder fabric and a sea-island type composite fiber composed of the sea component and an island component, the island component having a diameter of 10-2500 nm, and to add a polymer elastic body to the non-woven fabric.

SPACE FILLING MATERIAL, METHOD FOR MANUFACTURING SAME, AND SPACE FILLING STRUCTURE

Provided is a space filling material having excellent strength in reinforcing a predetermined space to be filled with the space filling material and/or strength in fixing a material to be fixed therewith. The space filling material (11) includes reinforcing fibers and a thermoplastic resin, wherein the reinforcing fibers form a plurality of intersections at least a part of which are bonded with the thermoplastic resin, and among all of the reinforcing fibers, a proportion in volume of reinforcing fibers each having a bent ratio of 1.004 or higher is 20 vol % or more relative to a total volume of the reinforcing fibers, the bent ratio being defined as a ratio of fiber length/shortest distance between opposite ends of fiber. The space filling material (11) expands to fill a predetermined space (13) when the thermoplastic resin is softened by heating to release bending loads of the reinforcing fibers.

Nonwoven material with high core bicomponent fibers

Nonwoven materials having at least one layer comprising high core bicomponent fibers are provided. The nonwoven materials can have multiple layers and are suitable for use in a variety of applications, including in absorbent products. Such nonwoven materials can be patterned to create a three-dimensional topography including indentations formed of valleys and ridges. The nonwoven materials can have improved resiliency and strength and can retain their structure under wetted conditions and after tension and compression. The nonwoven materials can further facilitate the transfer of the liquid through the nonwoven material for improved liquid distribution and can also have improved liquid retention properties.

FLAME-RETARDANT NON-WOVEN FIBROUS WEBS
20220396903 · 2022-12-15 ·

A nonwoven fibrous web and a method of making thereof. The nonwoven fibrous web includes greater than 0% but no greater than 30 wt % of a plurality of melt-blown fibers comprised of a crystalline (co)polymer; and at least 70 wt % of a plurality of randomly-oriented staple fibers, the plurality of randomly-oriented staple fibers including: at least 60 wt % of oxidized polyacrylonitrile fibers; and from 0 to 40 wt % of reinforcing fibers having an outer surface comprised of a (co)polymer with a melting temperature of from 100° C. to 350° C.; wherein the plurality of melt-blown fibers and the plurality of randomly-oriented staple fibers are bonded together to form a cohesive non-woven fibrous web.

METHOD FOR PRODUCING FIBER MOLDED BODY, FIBER MOLDED BODY, SOUND-ABSORBING MATERIAL, VEHICLE INTERIOR MATERIAL AND MICROFIBER

There are provided microfibers that generate less formaldehyde and acetaldehyde and have a favorable fiber openness, a fiber molded body using the microfibers, and a method for producing the same. The method for producing a fiber molded body of the present invention is a method for producing a fiber molded body comprising molding of a fiber mixture, wherein the fiber mixture comprises microfibers, wherein the content of the microfibers in the fiber mixture is 5 mass % or more, wherein, in the microfibers, an amount of an oil adhered is 0.1 to 1 mass %, a total amount of ethylene oxide units and propylene oxide units generated is 0.01 to 0.5 mass %, and a single fiber fineness is 0.01 to 0.5 dtex.

FIBER MOLDED BODY FOR SOUND ABSORBING/SOUND INSULATION MATERIALS

There is provided a fiber molded body for sound absorbing/sound insulation materials, which is lightweight and has excellent sound absorption performance. The fiber molded body for sound absorbing/sound insulation materials of the present invention is a fiber molded body for sound absorbing/sound insulation materials comprising uncolored ultrafine chemical fibers and colored fibers or reclaimed fibers, wherein the single fiber fineness of the ultrafine chemical fibers is 0.01 to 0.5 dtex, the content of the ultrafine chemical fibers is 5 to 70 mass % and the content of the colored fibers or the reclaimed fibers is 20 to 60 mass %, in the fiber molded body for sound absorbing/sound insulation materials.

ABSORBENT ARTICLE COMPRISING AN INTERMEDIATE LAYER

The present disclosure relates to an absorbent article comprising a topsheet, a backsheet, and a layer of absorbent material disposed between the topsheet and the backsheet, wherein the layer of absorbent material comprises superabsorbent polymer, and an intermediate layer comprising a nonwoven web. The intermediate layer is disposed between the layer of absorbent material and the backsheet, wherein the intermediate layer has a MD tensile/basis weight no greater than about 0.75 N/5 cm/g/m.sup.2 as measured according to Tensile Strength Test, and a thickness/basis weight no less than about 0.078 mm/g/m.sup.2, as measured FTT Test.

NONWOVEN FABRIC FOR LEAD ACID BATTERIES USING GLASS FIBER AND HEAT-FUSIBLE BINDER FIBER
20230077235 · 2023-03-09 · ·

[Problem] To provide a nonwoven fabric (pasting mat) that does not undergo bonding between the nonwoven fabrics (pasting mats) even under severe conditions (a pressure in winding and a high temperature and a high humidity in transportation, storage, and production).

[Means for Resolution] A pasting mat for lead acid batteries, containing a microglass fiber and a heat-fusible binder fiber, the pasting mat having a thickness under a pressure of 20 kPa of 0.1 mm or more and 0.5 mm or less, and having a bonding strength between the pasting mats after being left for 48 hours under a pressure of 5 to 10 kPa in an environment of a temperature of 70 to 90° C. and a humidity of 75% of less than 0.05 N.

LINER FOR UPHOLSTERED FURNITURE
20230068055 · 2023-03-02 ·

A liner, comprising a layered material in which a carded nonwoven wadding is thermally bonded to a thin carded nonwoven top layer, for upholstered furniture. In the liner, a high proportion of the staple fibers in the top layer are thin bi-component binder fibers. Further, at least 20 wt % of the staple fibers in the wadding is thick staple fibers. Furthermore, also the wadding comprises bi-component binder fibers.

MIGRATION RESISTANT BATTING WITH STRETCH AND METHODS OF MAKING AND ARTICLES COMPRISING THE SAME
20170370037 · 2017-12-28 · ·

The invention provides migration resistant batting that includes a nonwoven web comprising a first surface parallel to a second surface, and a fiber mixture that includes: 35 to 65 wt % synthetic polymeric fibers having a denier of less than or equal to 1.0, wherein 50 to 100 wt % of said synthetic polymeric fibers are siliconized fibers; 10 to 30 wt % spiral-crimped synthetic polymeric fibers having a length of greater than or equal to 60 mm, wherein 50 to 100 wt % of said spiral-crimped synthetic polymeric fibers are siliconized fibers; 20 to 50 wt % elastomeric fibers having a denier between 2.0 and 7.0; and 5 to 25 wt % synthetic binder fibers having a denier of 1.5 to 4.0, said binder fibers have a bonding temperature lower than the softening temperature of the synthetic polymeric fibers, wherein said first and second surfaces comprise a cross-linked resin. Also provided are articles comprising the batting and methods of making the batting.