Light-fast dyeing of synthetic polyamide fibers: anionic dye, oxazolo-anilide and a copper complex

摘要

The present invention relates to a process for dyeing polyamide comprising a) one or more oxanilide U.V. absorbers (hereinafter defined as component a); b) one or more copper complexes, (hereinafter defined as component b); and c) one or more metal-free or metallized acid dyes in particular 1:2 metal complex dyes (hereinafter defined as component c) optionally together with one or more dyeing assistants.