The aftertreatment of acid dyes on nylon 6,6 fibres Part 1.1:2 pre-metallised acid dyes

摘要

Nylon 6,6 knitted fabric was dyes using a total of eight, commercial, 1:2 pre-metallised acid dyes and the dyed samples were aftertreated using three different commercial systems, namely a syntan, a syntan/cation process and a newly developed full backtan. When all dyeings wee subjected to five consecutive ISO C061C2 wash tests, it was found that while all three aftertreatments impared improved wash fastness, the newly developed backtanning system bestowed greated wash fastness improvement towards repeated wash testing.