PROCESS FOR DYEING AND STAIN-PROOFING NYLON CARPETS

摘要

This invention relates to a process for increasing the stain resistance of a n acid dyeable nylon filament or staple fiber, especially in the form of a textile or floor covering article such as a carpet. The invention involves t he addition of a stain blocker to the dye bath through which the textile articl e is passed. The stain blocker contains phenolic groups and is free of sulfoni c and carboxylic groups. After the dyeing process, the carpet is subjected to sequential heat treatments.