Composition for the oxidation dyeing of human keratinous fibres

A - Human Necessities – 61 – K

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A61K 8/25 (2006.01) A61Q 5/10 (2006.01)

Patent

CA 2480817

The subject of the invention is a composition for the oxidation dyeing of human keratinous fibres and in particular hair comprising, in a cosmetically acceptable medium based on water and at a basic pH, at least one oxidation dye and an alkalinizing agent consisting of sodium metasilicate and aqueous ammonia, and the dyeing method using this composition.

L'invention concerne une composition de coloration par oxydation pour fibres de kératine humaine, et en particulier pour la chevelure, qui comprend, dans un milieu acceptable du point de vue cosmétique à base d'eau, et à un pH basique, au moins un colorant par oxydation et un agent alcalinisant renfermant du métasilicate de sodium et de l'ammoniaque. L'invention concerne également un procédé de coloration correspondant qui repose sur l'utilisation de cette composition.

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