SHEATH-CORE CONJUGATE FILAMENT YARN, FABRIC PRODUCED BY USING THE SAME, HOLLOW FIBER FABRIC AND METHOD FOR PRODUCING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a hollow polyamide fiber having light weight and excellent heat-retaining property in high productivity without generating the collapse of the hollow part in a higher order fabrication process.;SOLUTION: The thermoplastic resin constituting the core part of the sheath-core conjugate filament yarn is a polylactic acid, the thermoplastic resin constituting the sheath part is a polyamide, the core/sheath conjugation ratio is 20/80 to 60/40 wt.%, and the outer shape of the fiber has a 3 to 8-lobed cross-section having a non-circularity degree of 1.3-2.5 or a flat cross-section having a flatness of 1.3-3.5.;COPYRIGHT: (C)2006,JPO&NCIPI