Abstract: A separation membrane support substrate characterized by being composed of a laminated nonwoven fabric comprising a front layer as the resin coating layer, a middle layer and a back layer which are integrally formed by heat bonding, and by satisfying the following conditions (1) to (5): (1) The front layer has at least one layer comprising thermoplastic resin filaments with a single filament diameter of 7-30 ?m; (2) the middle layer has at least one layer comprising melt blown fibers with a single fiber diameter of no greater than 5 ?m, and a fiber basis weight of at least 1 g/m2 and comprising no more than 30 wt % of the total fiber basis weight; (3) the back layer has at least one layer comprising thermoplastic resin filaments with a single filament diameter of 7-20 ?m, and has a fiber basis weight of 3-40 g/m2; (4) the laminated nonwoven fabric has an apparent density of 0.67-0.91 g/cm3; and (5) the laminated nonwoven fabric has a thickness of 45-110 ?m.

Abstract: The present invention provides a laminated nonwoven fabric wherein the nonwoven fabric is a laminated one formed by integrating, through compressive bonding, a stacked nonwoven fabric structure comprising an upper and a lower thermoplastic synthetic filamentary fiber layer that have a fiber diameter from 7 ?m or more to 20 ?m, and an intermediate layer composed of thermoplastic synthetic fine fibers that have a fiber diameter of 5 ?m or less, the laminated nonwoven fabric having an intimately mixed structure in which a portion of the fine fibers is intruded into at least one face side of the filamentary fiber layers with an intrusion index of 0.36 or more to bond, surround or interlace the filamentary fibers, a basis of weight of from 10 g or more to 250 g/m2, and a bulk density of 0.20 g/cm3 or more.

Abstract: A flameproof artificial leather comprising an artificial leather base fabric in which thermoplastic synthetic fibers are three dimensionally interlaced with each other and a water-soluble polyurethane resin, and having a layer (A) that is a surface layer and a layer (B) that is other than the layer (A), the fiber forming the layer (A) is an extremely fine thermoplastic synthetic fiber having a size of 0.5 dtex or less and excellent in a resistance to abrasion and/or a resistance to light, the extremely fine thermoplastic synthetic fiber being formed from a polyester homopolymer that has an intrinsic viscosity (IV) of 0.50 to 0.70, the content of the extremely fine thermoplastic synthetic fiber being from 10 to 60% by weight based on the artificial leather base fabric, at least one layer of the layer (B) having a phosphorus-containing flameproof thermoplastic synthetic fiber, the content of phosphorus being 0.

Abstract: A sheet material for a seat characterized in that the stress at 5% elongation (A) is from 40 to 300 N/4 cm width wherein A is a larger value between a stress measured in the longitudinal direction and a stress measured in the lateral direction, that the ratio A/B is from 1.5 to 15.0 wherein B is the smaller value obtained in the above measurement, and that the reduction in width (H) is from 0 to 15% when the sheet material is fixed on a frame at the one end and the opposite end while stretched and pressured.

Abstract: A fabric for clothes that has a decreased flow resistance shows a compression ratio of a micro-area in the fabric surface, on the surface side opposite to a body, of from 8 to 90%, and has streaky protruded portions on the surface side opposite to body. The protruded portions preferably have a width of 100 to 2,500 mm, and a height of 30 to 300% of the width of the protruded portions. Moreover, the protruded portions are preferably wavy, streaky ones in one direction on the surface side opposite to a body.

Abstract: There is provided a polyketone comprising repeating units, 95-100 mole % of which are 1-oxotrimethylene and having an intrinsic viscosity of 2.5-20 dl/g, wherein the content of Pd element is 0-20 ppm, terminal structures include an alkyl ester group (terminal group A) and an alkyl ketone group (terminal group B), and the equivalent ratio of terminal group A/terminal group B is 0.1-8.0. The polyketone of the present invention can be used in any forms, such as fibers and films, and can be applied to a wide variety of the uses such as clothing, reinforcing materials for rubbers, resins, cements, and optical fibers, electronic materials, battery materials, civil engineering materials, medical materials, daily commodities, fishery materials, and packaging materials.

Abstract: The present invention provides a heat-resistant nonwoven fabric wherein the nonwoven fabric is formed from a poly(phenylene sulfide) fiber, and 30% by weight or more of the poly(phenylene sulfide) fiber has a crystallinity of 25 to 50%. Moreover, the properties of the heat-resistant nonwoven fabric can be further improved by making the nonwoven fabric have a multilayer structure in which layers composed of a poly(phenylene sulfide) filamentary fiber and layers composed of a poly(phenylene sulfide) fine fiber are stacked and integrated.

Abstract: A simple warmth-retaining article comprising a heat insulating material, a cover material and an exothermic article that generates heat in the presence of air and that is inserted between the heat insulating material and the cover material, and a warmth-retaining cloth formed by connecting a plurality of the simple warmth-retaining articles in a plane-like state.

Abstract: A nonwoven fabric characterized in that the nonwoven fabric is a thermoplastic synthetic fiber nonwoven fabric having a fabric weight of 7 to 50 g/m2, an average yarn diameter of 7 to 40 ?m, a partial heat contact bonding ratio of 5 to 30% and a content of a delustering agent of 0.5% by weight or less, or a nonwoven fabric laminate the major component of which is the thermoplastic synthetic fiber nonwoven fabric, and that the nonwoven fabric has a maximum opening diameter of 200 to 2,000 ?m, and shows a transparency of 50% or more, a powder leakage ratio of 10% by weight or less and a hydrophilicity of less than 10 sec, and a tea bag in which the nonwoven fabric is used.

Abstract: A polyurethane elastic fiber, containing inorganic compound particles that have an average particle size of 0.5 to 5 mm and that show a refractive index of 1.4 to 1.6, having at least one protruded portion that has a maximum width of 0.5 to 5 ?m, in the fiber surface, per 120-?m length in the fiber axis direction.

Abstract: Polyketone fibers comprising, on the basis of the entire repeating units, 95% by mole of a repeating unit of the formula (1) shown below, and showing a minimum value (Amin(F)) of a UV absorbance of 0.5 or less in a wavelength region of 210 to 240 nm.

Abstract: The present invention provides a bleachable stretch woven fabric which is excellent in stretchability even after bleaching and a woven product obtained by using the same. A stretch woven fabric characterized by comprising an elastic polyurethane fiber(s) containing two or more metals selected from Mg, Al and Zn in part of a yarn. The metal compound contained in the elastic polyurethane fiber is preferably a composite oxide or a composite hydroxide containing two or more metals, for example, hydrotalcite or a composite oxide obtained by firing hydrotalcite. The stretch woven fabric of the present invention can be suitably used for a bleached stretch denim product.

Abstract: Poly(trimethylene terephthalate) composition particles comprising 80% by weight or more of trimethylene terephthalate units based on the entire repeating units, having an intrinsic viscosity from 0.8 to 2 dl/g, and satisfying the following conditions (a) to (c): (a) the composition particles have a particle size of 3 mm or less and a weight of less than 1 mg/particle; (b) the composition particles have a terminal carboxyl group content of 25 meq/kg or less; and (c) the composition particles have a cyclic dimer content of 1.5% by weight or less.

Abstract: A polyurethane elastic fiber, containing inorganic compound particles that have an average particle size of 0.5 to 5 mm and that show a refractive index of 1.4 to 1.6, having at least one protruded portion that has a maximum width of 0.5 to 5 ?m, in the fiber surface, per 120-?m length in the fiber axis direction.

Abstract: An elastic knitted fabric having a multilayer structure, made by binding separate front and back two-layer ground knitted fabrics together, wherein the above described two-layer ground knitted fabrics are bound together with only a bare string(s) of polyurethane based elastic fibers of 17 to 3000 decitexes.

Abstract: A package of polyester type conjugate fiber of either a side-by-side type or an eccentric sheath/core type in which two kinds of polyester components are adhered to each other to form a single filament, wherein at least one of the components consisting of the single filament is polytrimethylene terephthalate containing repeating units of trimethylene terephthalate of 90 mol % or more, which package is formed of 2 kg or more of the conjugate fiber and satisfies the following items (1) to (3): (1) the difference in diameter between a selvage portion and a central portion of the package is 10 mm or less, (2) a winding width of the package is in a range from 60 to 250 mm and a diameter of the package is in a range from 100 to 400 mm, and (3) the difference in dry-heat shrinkage stress value between the conjugate fibers layered in the selvage portion and the central portion of the package is 0.05 cN/dtex or less.

Abstract: A circularly knitted fabric for fashioning clothes prior to heat treatment, formed out of a polyurethane elastic fiber and a non-elastic fiber, the polyurethane elastic fiber satisfying the condition, 1?R/S?12, wherein R/S (%)=(R3/S1)×100, S1 is the forward stress when the fiber is expanded by 200% at the first expansion in a 300% expansion-recovery repetition test, and R3 is the reverse stress when the fiber is recovered at the third 200% recovery in the 300% expansion-recovery repetition test.

Abstract: A fabric for clothes that has a decreased flow resistance shows a compression ratio of a micro-area in the fabric surface, on the surface side opposite to a body, of from 8 to 90%, and has streaky protruded portions on the surface side opposite to body. The protruded portions preferably have a width of 100 to 2,500 mm, and a height of 30 to 300% of the width of the protruded portions. Moreover, the protruded portions are preferably wavy, streaky ones in one direction on the surface side opposite to a body.

Abstract: A package of polyester type conjugate fiber of either a side-by-side type or an eccentric sheath/core type in which two kinds of polyester components are adhered to each other to form a single filament, wherein at least one of the components consisting of the single filament is polytrimethylene terephthalate containing repeating units of trimethylene terephthalate of 90 mol % or more, which package is formed of 2 kg or more of the conjugate fiber and satisfies the following items (1) to (3): (1) the difference in diameter between a selvage portion and a central portion of the package is 10 mm or less, (2) a winding width of the package is in a range from 60 to 250 mm and a diameter of the package is in a range from 100 to 400 mm, and (3) the difference in dry-heat shrinkage stress value between the conjugate fibers layered in the selvage portion and the central portion of the package is 0.05 cN/dtex or less.