PROCESS FOR DYEING AND STAIN-PROOFING NYLON CARPETS

摘要

This invention relates to a process for increasing the stain resistance of an 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 the addition of a stain blocker to the dye bath through which the textile article is passed. The stain blocker contains phenolic groups and is free of sulfonic and carboxylic groups. After the dyeing process, the carpet is subjected to sequential heat treatments.