HIGH SHRINKAGE ATMOSPHERIC PRESSURE CATION DYEABLE POLYESTER FIBER AND COMBINED FILAMENT YARN USING SAME AND FABRIC USING SAME

摘要

PROBLEM TO BE SOLVED: To provide a high shrinkage atmospheric pressure cation dyeable polyester fiber capable of obtaining a fabric having good color development property, high fastness and good thickness; a combined filament yarn capable of obtaining the fabric; and the fabric.;SOLUTION: The high shrinkage atmospheric pressure cation dyeable polyester fiber is characterized by that the fiber comprises a resin which is composed of a polyester A containing 2.0-3.0 mole% of isophthalic acid component having metal sulfonate group to an acid component of the polyester A and 2.0-3.5 mass% of a polyalkylene glycol having an average molecular weight of 150-400 to the polyester A and a polyester B containing 15-35 mole% of a spiroglycol to a glycol component of the polyester B, at a mixture ratio (mass ratio) of 80:20-95:5, and the fiber has hot water shrinkage of 40% or over. Also claimed is a combined filament yarn using the fiber. Also claimed is a fabric using the combined filament yarn.;SELECTED DRAWING: None;COPYRIGHT: (C)2019,JPO&INPIT