TEXTURED YARN HAVING HEAT-ACCUMULATING CONJUGATE STRUCTURE AND CLOTH PRODUCED BY USING THE YARN

摘要

PROBLEM TO BE SOLVED: To produce the subject yarn giving a sportswear with beautiful color, comfortability and warmness and achieving high temperature-increasing effect even in a low-temperature environment or in a windy day and prepare a cloth produced by using the yarn. SOLUTION: This textured conjugate yarn is composed of a polyester fiber yarn and/or a polyamide fiber yarn and has a structure consisting of a sheath yarn wound around a core yarn. The core yarn contains >=0.4wt.% of a heat- accumulating agent based on the whole textured yarn having the conjugate structure and the fineness of the sheath yarn is 40-80% of the total fineness of the textured conjugate yarn. The sheath yarn is a modified cross-section single fiber having a circumferential length ratio Lr of >=1.25. The value Lr is defined by the formula Lr=L1 /L2 wherein L1 is the circumferential length (cm) of the single sheath yarn and L2 is the circumferential length (cm) of a circular cross-section yarn having a cross-sectional area equal to that of the single sheath yarn [S1 (cm<2> )] and is calculated by L2 =2×(π×S1 )<0.5> .