Patent ID: 8268015

Claim:
Kit for dyeing and decolorizing keratin-containing fibers comprising: at least one cosmetic multicomponent dyeing agent having at least one cosmetic agent A1 and at least one cosmetic agent A2, and at least one cosmetic decolorizing agent B comprising hydrogen peroxide in a cosmetic carrier, and optionally at least one set of instructions, wherein the at least one agent A1 and at least one agent A2 are mixed to yield a ready-to-use dyeing agent for dyeing keratin-containing fibers, wherein the ready-to-use dyeing agent contains at least one CH-acidic compound and at least one reactive carbonyl compound in a cosmetic carrier, and wherein keratin-containing fibers dyed with the ready-to-use dyeing agent can be decolorized with the decolorizing agent B, with the proviso that agents A1, A2 and B are present in separately formulated form, wherein the CH-acidic compound is choked from at least one compound of formula (CH-1) and/or at least one compound of formula (CH-2), wherein R 6 is a linear or cyclic (C 1 to C 6 alkyl group, a (C 2 to C 6 )alkenyl group, an optionally substituted aryl group, an optionally substituted heteroaryl group, an aryl-(C 1 to C 6 )-alkyl group, a (C 1 to C 6 ) hydroxyalkyl group, a (C 2 to C 6 ) polyhydroxyalkyl group, a (C 1 to C 6 )-alkoxy-(C 1 to C 6 )-alkyl group, a group R I R II N—(CH 2 ) m —, wherein R I and R II mutually independently are a hydrogen atom, a (C 1 to C 6 ) alkyl group, a (C 1 to C 4 )hydroxyalkyl group or an aryl-(C 1 to C 6 )-alkyl group, wherein R I and R II together with the mitrogen atom can from a 5-, 6- or 7-membered ring, and m is 2, 3, 4, 5, or 6, R 7 is a(C 1 to C 6 )alkyl group, X is a physiologically acceptable anion, the cycle of formula (CH-1 is a ring structure comprising heteroatoms and capable of bearing additional substituents, Het is an optionally substituted heteroaromatic, and X 1 is a direct bond or a carbonl bony group.