Patent ID: 7387976
Filing Date: 2008-06-17
Classification: A41D,B32B,Y10T

Abstract:
1. A composite fiber structure comprising a polyester elastic fiber structure having adhered on both surfaces thereof polyester woven or knitted fabrics with a polyester adhesive, characterized in that the polyester elastic fiber structure satisfies the following requirements (1) to (5): (1) the polyester elastic fiber structure contains side-by-side or eccentric core/shell conjugate short fibers A, which contain two kinds of polyester different from each other in intrinsic viscosity, have microcrimps of from 30 to 60 crimps per 25 mm exhibited by latent crimps, and are applied with mechanical crimps of from 7 to 15 crimps per 25 mm, as a matrix, and dispersed and mixed therein elastic conjugate fibers B, which contain a thermoplastic elastomer having a melting point lower by 40° C. or more than the two kinds of polyester, and a nonelastic polyester, with at least the thermoplastic elastomer being exposed on a surface of the fibers, (2) has thermally fixed points formed by heat-melting the conjugate short fibers A and the elastic conjugate fibers B intersecting with each other, (3) has thermally fixed points formed with the elastic conjugate fibers B intersecting with each other, (4) has a mixing ratio of the conjugate short fibers A and the elastic conjugate fibers B of from 90/10 to 10/90, and (5) has a single filament fineness of the conjugate short fibers A of from 2 to 15 dtex.