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 and to reduce the cost of the fiber by shortening the dissolution time of a polylactic acid.;SOLUTION: The thermoplastic resin constituting the core part of the sheath-core conjugate filament yarn is a polylactic acid, the easily soluble polyester contains 0.5-25 mmol of magnesium in 100 g of the polyester, the thermoplastic resin constituting the sheath part is a polyamide, the core/sheath conjugation ratio is 20/80 to 60/40 wt.%, and the fiber surface is completely covered with the sheath part.;COPYRIGHT: (C)2006,JPO&NCIPI