Patent ID: 7070625

Claim:
An agent (A) for coloring fibers which is prepared before use by mixing two components (A1) and (A2), characterized in that component (A1) contains at least one 2-benzothiazolinone hydrazone derivative of formula (I) or a physiologically tolerated salt thereof wherein R1 and R2 can be equal or different and independently of each other denote hydrogen, a halogen atom, a (C 1 -C 4 )-alkyl group, a halogen-substituted (C 1 -C 4 )-alkyl group, a (C 1 -C 4 )-alkoxy group, a sulfo group, a sulfamoyl group, a carboxyl group, a nitro group, an acetamido group or an NR a R b group wherein the R a and R b groups can be equal or different and independently of each other denote hydrogen, a (C 1 -C 6 )-alkyl group, a carbocyclic or heterocyclic, substituted or unsubstituted aromatic grouping, or R a and R b together with the nitrogen atom form a saturated or unsaturated, substituted or unsubstituted heterocyclic (C 3 -C 6 ) group; or R1 and R2 together with the remainder of the molecule form a heterocyclic or carbocyclic, substituted or unsubstituted ring system; R3 denotes a (C 1 -C 4 )-alkyl group, a halogen-substituted (C 1 -C 4 )-alkyl group, a sulfo-(C 1 -C 4 )-alkyl group, an acetyl group, a formyl group, a substituted or unsubstituted benzyl group or an isocyclic or heterocyclic grouping; and component (A2) contains at least one ortho-quinone of formula (II) or para-quinone of formula (III) wherein R4, R5, R6 and R7 independently of each other denote hydrogen, chlorine, bromine, fluorine, a hydroxyl group, a straight-chain or branched (C 1 -C 6 )-alkyl group, a straight-chain or branched monohydroxy-(C 1 -C 6 )-alkyl group, a straight-chain or branched polyhydroxy-(C 2 -C 6 )-alkyl group, a straight-chain or branched (C 1 -C 6 )-alkoxy group, a straight-chain or branched mono-(C 1 -C 6 )-alkoxy-(C 1 -C 6 )-alkyl group, a straight-chain or branched-poly-(C 1 -C 6 )-alkoxy-(C 2 -C 6 )-alkyl group, a (C 1 -C 2 )-alkylenedioxy group, a sulfo group, a cyano group, a straight-chain or branched amino-(C 1 -C 6 )-alkyl group, an —NR a R b amino group wherein the R a and R b groups can be equal or different and independently of each other denote hydrogen, a (C 1 -C 6 )-alkyl group, a carbocyclic or heterocyclic, substituted or unsubstituted aromatic grouping, or R a and R b together with the nitrogen atom form a saturated or unsaturated, substituted or unsubstituted heterocyclic (C 3 -C 6 )-group; or in o-quinones of formula (II) R4 and R5 and/or R6 and R7 or R5 and R6, or in p-quinones of formula (III) R4 and R5, and/or R6 and R7 always together with the remainder of the molecule form a heterocyclic or carbocyclic, substituted or unsubstituted ring.