Abstract: A woven or knit fabric containing crimped composite fibers having its air permeability enhanced by water wetting and being useful in clothes such as outerwear, which woven or knit fabric contains 10 to 100 mass % of composite fibers of side-by-side type or eccentric core sheath type composed of polyester resin component and polyamide resin component whose thermal shrinkages are different from each other, the composite fibers having crimps developed by heat treatment. The composite fibers exhibit humid crimp factor HCF (%), as measured through a procedure comprising immersing the same in water of 30° C. for 2 hr, pulling them up, interposing them between a pair of filter papers at 30° C. in a humidity of 90% RH within 60 sec of the pulling up and applying a pressure of 0.69 mN/cm2 for 5 sec, of ?10% lower than the dry crimp factor DCF (%) after dying by allowing them to stand still at 20° C.

Abstract: A nonwoven fabric of polyester composite fibers which has a satisfactory color tone (low value of b*). It is formed from short composite fibers obtained from a polyester polymer obtained with the following catalyst and a fusion-bondable polymer.

Abstract: A woven or knitted fabric with a air space which is reversibly decreased by wetting with water compared to its dry state, comprises crimped filaments A whose percentage of crimp decreases upon wetting with water, and filaments B selected from among filaments with no crimps and crimped filaments which undergo substantially no change in percentage of crimp upon wetting with water, wherein the difference between the dry percentage of crimp DCf(%) and the wet percentage of crimp (HCf) (DCf?HCf) of a crimped filament A taken from the woven or knitted fabric is at least 10%, and the average value RA between the change in dimensions RP(%) of the woven or knitted fabric in the warp (or wale) direction when wet and when dry, and the change in dimensions RF(%) in the weft (or course) direction when wet and when dry (=(RP?RF)/2)(%) is at least 5%.

Abstract: A web comprising a matrix fiber containing a non-elastic polyester based short fiber and an elastic composite fiber which is made of a thermoplastic elastomer having a melting point of at least 40° C. lower than a melting point of a polyester polymer constituting the short fiber and a non-elastic polyester, with the former being at least exposed on a surface of the fiber, and optionally a hygroscopic and exothermic fiber is heat molded such that the fibers are aligned in a thickness direction thereof, thereby obtaining a mat layer, onto which is then stuck a surface skin material to form an internal material of shoe, and a shoe insole and a boot are obtained by using the internal material of shoe.

Abstract: The invention is an insect pest behavioral disturbance inducer which comprises an organic ester compound having a vapor pressure of 10?3 Pa (25° C.) order or less as an active ingredient, a functional fiber and a functional fabric, which hold aforementioned insect pest behavioral disturbance inducer, and a functional fiber product comprising the aforementioned functional fiber or a functional fabric, which can add excellent insect pest behavioral disturbance inducing effect to the applying place for a prolonged period of time.

Abstract: The pile fabric having a very soft hand, a high abrasion resistance and a good bathochromic effect comprises a ground structure portion constituted from a polyester filament yarns and having a knitted or woven structure and a pile portion comprising polyester filaments knitted or woven into the ground structure portion. The polyester filaments for the pile portion have a flat cross-sectional profile with a flat ratio of 2 to 6, and an individual filament thickness of 0.5 to 1.5 dtex. In the flat cross-sectional profile, least two pairs of mutually opposite concavities (valley portions) are formed.

Abstract: A woven or knitted fabric, having a roughness which is manifested when wetted with water and disappears when dried, comprises crimped filaments A whose percentage of crimp decrease when wetted with water, and filaments B composed of non-crimped filaments and/or crimped filaments which undergo substantially no change in percentage of crimp when wetted with water, wherein the change of the roughness is 5% or more, determined in accordance with the following equation: Change in Roughness (%)=((TW?TD)/TD)×100 in which TD: a thickness upon drying and TW: a thickness upon wetting with water, of the woven or knitted fabric.

Abstract: A polyester combined filament yarn composed of a self-extending polyester multifilament yarn A and a heat-shrinkable polyester multifilament yarn B, wherein the polyester multifilament yarn A comprises a core portion and a plurality of fin portions protruding in a radial fashion from the core portion along the lengthwise direction of the core portion, and the following conditions (a) to (c) arc simultaneously satisfied. 1/20?SB/SA????(a) 0.6?LB/DA?3.0??(b) WB/DA?¼??(c) (where SA represents the cross-sectional area of the core portion, DA represents the diameter of the core portion when the cross-section is a circle and the circumscribed circle diameter when it is not a circle, and SB, LB and WB represent the cross-sectional area, maximum length and maximum width, respectively, of the fin portions.

Abstract: A novel conjugate fiber with a fine and an optical interference color-generating function, suitable for application in product fields which require aesthetic qualities, the fiber being characterized by having a structure wherein an alkali-soluble polymer with a thickness of 2.0 ?m or greater surrounds an alternating laminated section with a thickness of no greater than 10 ?m, comprising alkali-insoluble polymer layers with different refractive indices alternately laminated parallel to the long axis direction of the flat cross-section, wherein the ratio (SP1/SP2) between the solubility parameter value of the higher refractive index polymer (SP1) and the solubility parameter value of the lower refractive index polymer (SP2) is in the range of 0.8–1.1.

Abstract: A knitted/woven fabric of polyester fibers is produced from a polyester polymer obtained by condensation-polymerizing an aromatic dicarboxylate in the presence of a catalyst which comprises a mixture of a titanium compound ingredient (A) comprising a titanium alkoxide and at least one product of the reaction of the titanium alkoxide with a specific carboxylic acid or anhydride thereof and a specific phosphorus compound ingredient (B) and/or comprises a product of the reaction of a titanium compound ingredient (C) with a specific phosphorus compound ingredient (D). The knitted/woven fabric obtained has a satisfactory color tone (low value of b*) and is excellent in suitability for knitting/weaving and dyeability.

Abstract: The polyester composition giving formed articles, such as fibers or films, exhibiting improved color depth and clarity, when dyed, has characteristics comprising an intrinsic viscosity of not less than 0.60, a methyl terminal group concentration of less than 1.0 equivalent/ton, and a carboxyl group concentration of not more than 60 equivalents/ton, and contains 0.1 to 5 percent by weight of a metal-containing phosphorous compound produced by reacting a phosphate ester with an alkali metal and/or alkaline earth metal-containing compound in an amount of 0.5 to 3 parts by mole converted into the alkali metal per part by mole of said phosphate ester. Therein, the “amount converted into the alkali metal” is the double of the molar number of the alkaline earth metal, when the alkaline earth metal is used, or the sum of the double of the mole number of the alkaline earth metal and the mole number of the alkali metal, when the alkali metal and the alkaline earth metal are simultaneously used.

Abstract: Polyester fibers having an individual fiber thickness of 0.1 to 10 dtex are produced from a polyester polymer produced by polycondensing an aromatic dicarboxylate ester in the presence of a catalyst including a mixture of a Ti compound component (A) including at least one member selected from titanium alkoxides and reaction products of the titanium alkoxides with a specific type of carboxylic acids or anhydrides thereof, with a specific P compound component (B), and/or a reaction product of a Ti compound component (C) with a specific P compound component (D). The resultant fibers have a good color tone (a low b value) a stable drawing and false-twisting processability and exhibit excellent appearance and performance.

Abstract: There are provided a process for producing a polyester fine multifilament yarn having a single filament fineness of 0.9 dtex or below, a total number of single filaments of 100 to 400 and a birefringence of 0.03 to 0.06 comprising passing polymer streams of a polyester polymer melt extruded from a spinneret surface through an atmosphere wherein a distance of 0 to 40 mm from the spinneret surface is regulated to a temperature within the range of 100 to 300° C., further cooling the polymer streams and then converging the cooled filaments into a filament bundle at a position of 350 to 500 mm from the spinneret surface; a process for producing a polyester fine false twist textured yarn comprising subjecting a polyester fine multifilament yarn having a single filament fineness of 0.9 dtex or below, a total number of single filaments of 100 to 400 and a bifringence of 0.03 to 0.

Abstract: The multi-colored fiber pile fabric of the present invention has at least one cut pile layer comprising a plurality of cut piles extending from at least one surface side of a knit or weave structure formed from organic fiber yarns, the cut pile layer comprises non-crimped pile fibers 5 formed from non-crimped organic fibers, crimped pile fibers 6 formed from crimped organic fibers and having a pile height lower than that of the non-crimped pile fibers 5 and crimped or non-crimped pile fibers 7 formed from crimped or non-crimped organic fibers and having a pile height lower than that of the crimped pile fibers 6, at least one type of pile fibers of the piles fibers 5, 6 and 7 having a color different in lightness or hue or lightness and hue from the other(s),

Abstract: There are provided a process for producing a polyester fine multifilament yarn having a single filament fineness of 0.9 dtex or below, a total number of single filaments of 100 to 400 and a birefringence of 0.03 to 0.06 comprising passing polymer streams of a polyester polymer melt extruded from a spinneret surface through an atmosphere wherein a distance of 0 to 40 mm from the spinneret surface is regulated to a temperature within the range of 100 to 300° C., further cooling the polymer streams and then converging the cooled filaments into a filament bundle at a position of 350 to 500 mm from the spinneret surface; a process for producing a polyester fine false twist textured yarn comprising subjecting a polyester fine multifilament yarn having a single filament fineness of 0.9 dtex or below, a total number of single filaments of 100 to 400 and a bifringence of 0.03 to 0.

Abstract: A recycling method which comprises constructing a membership computer system comprising appending to products identification displays showing that the products satisfy the standards for products scarcely giving loads to environments, easily recyclable products, highly healthy and safe products, or the like, connecting members comprising the producers A of the products to which the identification displays can be appended, product seller B, purchasers or consumers C, waste-collecting members D, collected commodity-transporting members E, and intermediate raw material producers F to an information network manager G through an information network, and totally monitoring and managing the production of the products, sales, wastes and the production of the intermediate raw materials by the information network manager G, and recycling the used products as wastes to the intermediate raw materials for producing the products, and by which the products can be produced with reduced energy, and the system thereof.

Abstract: A flat multifilament yarn knitted fabric having excellent bulkiness, drape, and water•sweat-absorbability is a knitted fabric comprising multifilament yarns each comprising a plurality of flat cross section shape-having filaments comprising a fiber-forming thermoplastic polymer as a main component. In the above-described flat cross section, three or more expanded portions expanded toward the outside of the longitudinal central line of the flat cross section per half side of the flat cross section, and two or more constricted portions formed between the expanded portions per half side are approximately symmetrically formed on both the sides of the longitudinal central line with respect to the above-described longitudinal central line.