RETARDERS

AVCO-RETARDER CAT
CATIONIC DYE RETARDER
AVCO-RETARDER CAT is a levelling agent with affinity to acrylic fibres, which in the beginning of the dyeing process goes on to fibre dyeing sites faster than the dyestuff molecule, herewith lessening the absorption rate of the dyestuffs. It slows down the rate of exhaustion of the cationic dyes in the critical range of the heating phase (above 80°C). Due to this retarding effect it promotes the even uptake of the dyes.details