Patent ID: 6805718
Filing Date: 2004-10-19
Classification: D06P,Y10S

Abstract:
A method for dyeing a material, said method comprising contacting the material with a dyeing system which comprises:(a) a mixture of (i) at least one aromatic diamine and (ii) at least one compound selected from the group consisting of a naphthol and an aminonaphthalene; wherein said naphthol is not unsubstituted alpha-naphthol, halogenated 1-naphthol, or an unsubstituted dihydroxynaphthalene and (b) an oxidation system comprising (i) a hydrogen peroxide source and an enzyme exhibiting peroxidase activity or (ii) an enzyme exhibiting oxidase activity on one or more of the compounds of mixture (a), under conditions in which a colored material is produced.