Oxidation dyeing composition for keratinous fibres and...

Details Oxidation dyeing composition for keratinous fibres and... Oxidation dyeing composition for keratinous fibres and...

C - Chemistry, Metallurgy

07

D

C07D 487/04 (2006.01)

Patent

CA 2301101

The invention concerns an oxidation dyeing composition for keratinous fibres, and in particular human keratinous fibres such as hair comprising, in a suitable dyeing medium, at least a first oxidation base selected among pyrazolo-[1,5-a]-pyrimidines, N,N-bis-(.beta.-hydroxyethyl) paraphenylenediamine as second oxidation base, and at least a coupling agent selected among the meta-aminophenols and the meta-phenylenediamines, and the dyeing method using said composition.

L'invention a pour objet une composition 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 première base d'oxydation choisie parmi les pyrazolo-[1,5-a]- pyrimidines, de la N,N-bis-(.beta.-hydroxyéthyl) paraphénylènediamine à titre de deuxième base d'oxydation, et au moins un coupleur choisi parmi les méta- aminophénols et les méta-phénylénediamines, ainsi que le procédé de teinture mettant en oeuvre cette composition.

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