| 摘要 |
<p>The invention relates to a means for blackening or darkening keratin fibers, particularly human hair, comprising, in a cosmetic carrier: at least one reactive carbonyl compound of formula (I) where precisely one of the two remainders from R1 and R2 is a hydrogen atom and precisely one of the two remainders from R1 and R2 is a halogen atom (in particular for chlorine, fluorine, bromine or iodine); and at least one CH-acid compound of formula (II) where: R3 and R4 are independently a (C1 to C6) linear or cyclic alkyl group, a (C2 to C6) alkenyl group, a substituted aryl group where applicable, a substituted heteroaryl group where applicable, an aryl (C1 to C6) alkyl group, a (C1 to C6) hydroxyalkyl group, a (C1 to C6) polyhydroxyalkyl group, a (C1 to C6) alkoxy (C1 to C6) alkyl group, a RIRIIN-(CH2)m- group, where RI and RII are independently a hydrogen atom, a (C1 to C4) alkyl group, a (C1 to C4) hydroxyalkyl group or an aryl (C1 to C4) alkyl group, where RI and RII together with the nitrogen atom can form a 5, 6, or 7-member ring and m is a number 2, 3, 4, 5 or 6; and X- is a physiologically compatible anion.</p> |
