Patent attributes
A web containing comprising side-by-side or eccentric core/shell conjugate short fibers A, which contain two kinds of polyester different from each other in intrinsic viscosity, and 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, is subjected to a heat treatment at a temperature equal to or higher than the melting point of the thermoplastic elastomer, so as to obtain a polyester elastic fiber structure, and then polyester woven or knitted fabrics are laminated adhered on both surfaces of the polyester elastic fiber structure with a polyester adhesive, followed by heat molding into a curved shape by a molding process depending on necessity, so as to obtain a composite fiber structure.
