Use of cationic azacyanine dyes for coloring keratin fibers

Details Use of cationic azacyanine dyes for coloring keratin fibers Use of cationic azacyanine dyes for coloring keratin fibers

C - Chemistry, Metallurgy

09

B

C09B 55/00 (2006.01) A61K 8/49 (2006.01) A61Q 5/06 (2006.01)

Patent

CA 2595249

The present invention relates to the use of cationic azacyanine dyes of the formula (Ia) or (Ib) for coloring keratin fibers, and to a method of coloring hair with various degrees of damage.

L'invention porte sur l'utilisation de colorants d'azacyanine cationique de formule (Ia) ou (Ib) pour la coloration de fibres de kératine, et sur une méthode de coloration de cheveux ayant subi différents types de dommages.

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