Oxidation dyeing composition for keratin fibres and dyeing...

C - Chemistry – Metallurgy – 09 – B

Patent

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C09B 67/00 (2006.01)

Patent

CA 2271980

The invention concerns a ready-to-use oxidation dyeing composition for keratin fibres, and in particular for human keratin fibres such as hair comprising, in a medium appropriate for dyeing, at least an oxidation base, at least a substituted meta-phenylenediamine as first coupling agent, and at least a second coupling agent selected among meta-aminophenols and meta-diphenols, and at least an oxidoreductase type enzyme with 2 electrons in the presence of at least a donor for said enzyme, and the dyeing method using said composition.

L'invention a pour objet une composition prête à l'emploi pour la teinture d'oxydation des fibres kératiniques, et en particulier des fibres kératiniques humaines telles que les cheveux comprenant, dans un milieu approprié pour la teinture, au moins une base d'oxydation, au moins une méta-phenylènediamine substituée à titre de premier coupleur, au moins un deuxième coupleur choisi parmi les méta-aminophénols et les méta-diphénols, et au moins une enzyme de type oxydo-réductase à 2 électrons en présence d'au moins un donneur pour ladite enzyme, ainsi que le procédé de teinture mettant en oeuvre cette composition.

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