PROCESS FOR DYING KERATINIC FIBERS BASED ON MONOHYDROXYINDOLE AND 5,6-DIHYDROXYINDOLE AND COMPOSITION IMPLEMENTED

摘要

The invention relates to a process for dyeing keratinous fibers, comprising the application to these fibers, initially, of a composition A containing, in a medium suitable for dyeing, / P P (i) at least one monohydroxyindole corresponding to formula I: BR/ (CF DRAWING IN BOPI) BR/ in which: / P P R1 denotes hydrogen or alkyl; / P R2 and R3 denote hydrogen, NH2, OH, COOH, CH2COOH, CONH2, alkyl optionally substituted by OH or NH2; alkoxy, CONHR4, CON R5 R6, CO2 R4, wherein R4, R5, R6 denote alkyl; halogen, and / P P (ii) at least 5,6-dihydroxyindole; - that it proceeds, in a second time, rinsing treated fibers; and third, a composition B containing an aqueous medium containing periodic acid or one of its salts is applied.