Dyestuffs and hair dye compositions

Details Dyestuffs and hair dye compositions Dyestuffs and hair dye compositions

C - Chemistry, Metallurgy

09

B

C09B 69/00 (2006.01) A61K 8/35 (2006.01) A61Q 5/10 (2006.01)

Patent

CA 2641863

The present invention refers to dyestuffs of the general Formula (I) wherein R, X, Y and Z are defined as given in claim 1, dyestuff mixtures and hair dye compositions comprising them, as well as a process for colouring hair.

La présente invention concerne des colorants de formule générale (I), dans laquelle R, X, Y et Z sont tels que définis dans la revendication 1, des mélanges de colorants et des compositions de coloration capillaire les contenant, ainsi qu'un procédé de coloration des cheveux.

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