| abstract |
The present invention relates to a process for preparing a pigment by reacting one or more ortho-dihydroxy-1,2-diphenylethylene derivatives, one or more manganese and / or zinc derivatives chosen from salts or oxides of manganese and salts or oxides of zinc, one or more hydroxides and / or (hydrogen carbonates), and one or more additional metal salts different from manganese salts and zinc salts. The subject of the invention is also a pigment obtainable by this process, a coloring composition comprising such a pigment and the use of such a composition in a process for the cosmetic treatment of keratin materials. |