Method for dyeing keratin fibres with oxidation dye...

Details Method for dyeing keratin fibres with oxidation dye... Method for dyeing keratin fibres with oxidation dye...

A - Human Necessities

61

K

A61K 8/49 (2006.01) A45D 19/00 (2006.01) A61K 8/41 (2006.01) A61Q 5/06 (2006.01) A61Q 5/10 (2006.01)

Patent

CA 2252499

A method for dyeing keratin fibres, particularly human keratin fibres, and more particularly hair, is disclosed. It is characterised by the fact that when it is used, an extemporaneous mixture is applied on the keratin fibres of a composition (A) containing one or more oxidation dye precursors and optionally one or more couplers, of a composition (B), in powder form, containing one or more direct dyes, preferably cationic, optionally dispersed in an organic pulverulent excipient and/or a mineral pulverulent excipient, and a composition (C) containing one or more oxidizing agents. The invention also features a ready-to-use composition of three components (A), (B), and (C) stored separately and mixed at the time of use to be applied on keratin fibres.

L'invention concerne un procédé de teinture des fibres kératiniques, en particulier des fibres kératiniques humaines et notamment les cheveux, charactérisé par le fait qu'on applique sur les fibres kératiniques, au moment de l'emploi, un mélange extemporané: d'une composition (A) contenant au moins un précurseur de colorant d'oxydation et éventuellement au moins un coupleur, d'une composition (B), sous forme de poudre, contenant au moins un colorant direct, de préférence cationique, éventuellement dispersé dans un excipient pulvérument organique et/ou un excipient pulvérulent minéral, et d'une composition (C) contenant au moins un agent oxydant. L'invention a également pour objet une composition prête à l'emploi à trois composants (A), (B) et (C), stockés de façon séparée et mélangés au moment de l'emploi, pour l'application sur les fibres kératiniques.

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