Enzymatic method for textile dyeing

D - Textiles – Paper – 06 – P

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D06P 1/00 (2006.01) D06P 1/32 (2006.01)

Patent

CA 2394349

The present invention relates to methods of dyeing a material which involve contacting the material with a dyeing system which comprises: (a) a mixture of (i) an aromatic diamine and (ii) one or more of a naphthol and an aminonaphthalene and (b) an oxidation system comprising (i) a hydrogen peroxide source and an enzyme exhibiting peroxidase activity or (ii) an enzyme exibiting oxidase activity on one or more of the compounds of mixture (a). The material may be a fabric, yarn, fiber, garment or film made of fur, hide, leather, silk or wool, or made of cationic polysaccharide, cotton, diacetate, flax, linen, lyocel, polyacrylic, synthetic polyamide, polyester, ramie, rayon, triacetate, or viscose.

La présente invention concerne un procédé permettant de colorer une matière et consistant à mettre cette matière en contact avec un système de coloration comprenant (a) un mélange (i) d'une diamine aromatique et (ii) d'un naphtol et/ou d'un aminonaphtalène, et (b) un système d'oxydation comprenant (i) une source de peroxyde d'hydrogène et une enzyme présentant un activité de peroxydase ou (ii) une enzyme présentant une activité d'oxydase sur l'un au moins des composés du mélange (a). Cette matière peut être un tissu, un fil, une fibre, un vêtement ou un revêtement constitué de fourrure, de cuir, de soie ou de laine, ou constitué de polysaccharide cationique, de coton, de diacétate, de lin, de lyocel, de polyacryle, de polyamide synthétique, de polyester, de ramie, de rayonne, de triacétate ou de viscose.

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