DYEING OF POLYESTER/POLYAMIDE MIXED FIBER STRUCTURE AND ITS DYED PRODUCT

摘要

PROBLEM TO BE SOLVED: To obtain a dyed product that has satisfactory color concentration and high color fastness by dyeing the cationic dye-dyeable polyester side with a cationic dye and the polyamide side with a specific reactive dye in a polyester/polyamide mixed ultrafine fiber structure. ;SOLUTION: A mixed fiber structure comprising a cationic dye-dyeable polyester fiber and a polyamide fiber each of which has a filament fineness of ≤1 denier is dyed with a combination of a dispersion type cationic dye with a reactive dye bearing at least one of reactive groups selected from bromoacrylamide group, monochlorotriazine group, monofluorotriazine group, carboxypyridiniotriazine group and fluoro-chloropyrimidine group in a dyeing bath of a pH 7-3 and washed in an alkaline bath of a pH of 7-14 whereby the objective dyed product is obtained.;COPYRIGHT: (C)2000,JPO