| abstract |
The subject of the invention is new derivatives of 4-hydroxyindole comprising at least at least one cationic group Z, Z being chosen from chains aliphatic quaternized, aliphatic chains comprising at least one saturated ring quaternized, and aliphatic chains comprising at least one unsaturated ring quaternized, their use as a coupler for oxidation dyeing fibers keratin, the dye compositions containing them, as well as the processes oxidation dye using them. |