POLYESTERFIBER STRUCTURE HAVING SHAPE-MEMORY ABILITY

摘要

PROBLEM TO BE SOLVED: To provide a fiber structure excellent in bulkiness recovery by the sun light or heat by forming it of a polyester-based fiber having shape memory performance and a polyester-based core-sheath composite binder fiber. ;SOLUTION: This polyester structure consists of 90-50 wt.% of a polyester fiber having 10-40% hollowness and 10-40 de monofilament denier and 10-50 wt.% of a polyester-based core sheath composite binder fiber, which is a copolyester consisting of a core part with a polyalkylene terephthalate having ≥220°C melting point and a sheath part of a copolyester having 20-80°C glass transition temperature, 90-130°C crystallization-starting temperature and 130-180°C melting point and comprising a terephthalic acid component, an aliphatic lactone component, an ethylene glycol component and 1, 4-butanediol component.;COPYRIGHT: (C)1999,JPO