The aftertreatment of acid dyes on nylon 6,6 fibres:Part 2.Non-metallised acid dyes

摘要

Nylon6,6 knitted fabric was dyed using three,levelling dyes and three milling dyes and the dyeings were aftertreated with a commercial syntan as well as a newly developed full bacdtan.When the dyed samples were subjected ot five,consecutive ISO 105:C06/C2 wash tests,it was found that while the syntan was effective in improving wash fastness,the new backtanning process imparted greatest wash fastness improvement.