Dyed nonfelting keratin fibres and preparation thereof

摘要

A process for dyeing and anti-felt finishing of keratin fibres, in which the keratin fibres are exposed to three treatment steps, (a) plasma treatment; (b) treatment with an aqueous dispersion of a cationic polyurethane; and (c) dyeing. The steps are effected in any order. The process can utilize a wide variety of types of keratin fibres, preferably wool, but including animal hairs other than wool and also human hair.