| abstract |
The invention relates to an agent for dyeing fibres containing keratin, especially human hairs, containing N-halogen imines of formula (I), wherein R<1>, R<2>, R<3> and R<4> represent a hydrogen atom, a halogen atom, a C1-C4-alkyl group and a C1-C4-alkoxy group. Two of the radicals can also form a fused aromatic or heteroaromatic ring together. X represents oxygen or an aryl imine and Hal represents fluorine, chlorine, bromine or iodine. |