POLYESTER COMBINED FILAMENT YARN HAVING EXCELLENT DEEP COLOR DYEABILITY AND WOVEN OR KNIT FABRIC PRODUCED BY USING THE FILAMENT YARN

摘要

PROBLEM TO BE SOLVED: To provide a polyester combined filament yarn having high bulkiness and excellent level dyeing property free from deep dyeing effect and glittering luster and a woven or knit fabric made of the yarn. ;SOLUTION: This combined polyester multifilament yarn is composed of a heat-shrinkable multifilament yarn and a heat-extensible multifilament yarn. The yarn length difference between the heat-shrinkable multifilament yarn and the heat-extensible multifilament yarn is 10-25% and minute recesses satisfying the following formulas are present on the surface of a filament constituting at least one of the multifilaments at a density of 80-600 recesses per 10 μm square; 0.05 μm≤W≤-1.0 μm, 0.4 μm≤L≤5.0 μm and 0.1 μm≤X≤0.8 μm wherein W is minor diameter of the recess, L is major diameter of the recess and X is distance between the centers of adjacent recesses.;COPYRIGHT: (C)2000,JPO