MANUFACTURING METHOD OF POLYESTER FIBER HAVING EXCELLENT DYEING PROPERTY

摘要

PURPOSE: A manufacturing method of polyester fiber which is capable of dyeing at under 100deg.C without a falling-off in physical properties and dyeing fabric blended with natural fiber or weak fiber for high temperature without damage is provided. CONSTITUTION: Polyester fiber having excellent dyeing property is obtained by the steps of: preparing a copolymerized polyester resin composition comprising at least 95mol% of terephthalic acid as dicarbonic acid, 92-85mol% of ethylene glycol as a diol ingredient, 5-13mol% of 1,4-cyclo hexane dimethanol and 2-10mol% of 2,2'-bis£4-(2-hydroxy-2-alkyl ethoxy)phenyl|propanol; and then spinning.