Polyester type thermal adhesiveness compound briefly the sheath-core die compound which

摘要

PROBLEM TO BE SOLVED: To obtain both a polyester-based heat bonding conjugate staple fiber suitable for obtaining a nonwoven fabric having pliability and stretchability and the nonwoven fabric. ;SOLUTION: This polyester-based heat bonding conjugate staple fiber is a core-sheath type conjugate staple fiber composed of a polyester in which a core part is a polyester comprising a main recurring unit composed of trimethylene terephthalate and a sheath part is a polyetherester comprising a hard segment composed of a polybutylene terephthalate and a soft segment composed of a linear polyalkylene glycol and having ≤160 Pa.s melt viscosity at 250°C and 1,000/s shear rate and 160-195°C melting point.;COPYRIGHT: (C)2001,JPO