| abstract |
New 2,4-diamino-m-xylenes of the formula wherein one of the groups R 'or R 2 is hydrogen, the other a C 1-4 alkyl group, a C 1-4 alkylsulfonyl group, a C 2-4 mono- or dihydroxyalkyl group, a C 1-4 alkoxy-C 2 -4- alkyl group or a C 2 - 4 aminoalkyl group, which may be substituted on the N atom by one or two C 1-4 alkyl groups or C 2-4 hydroxyalkyl groups, are suitable as coupler components for oxidation hair colorants. The hair colorants contain a combination of the new coupler components with developer components known per se and possibly known coupler substances in amounts of 0.5-5% by weight, based on the hair colorant. The hair dyes provide intense shades with green-gray and red-brown to black-blue and dark purple shades with good fastness properties. |