A method of treating natural or synthetic polyamide or cellulosic textiles comprises applying an effective amount of an arylating agent, preferably to the dyebath. The arylating agent may be of a formula Ar--(X--Y).sub.n wherein Ar is an aromatic residue such as substituted or unsubstituted benzene or...http://www.google.com.au/patents/US4950301?utm_source=gb-gplus-sharePatent US4950301 - Keratinous textile treatment with arylating compounds containing fibre reactive groups
