Diaminobenzoquinones in hair dye compositions

Claim 1

A composition for dyeing keratinic fibers comprising a solution in a solvent selected from the group consisting of water and an aqueous alcoholic solution of a diaminobenzoquinone selected from the group consisting of 1. a diaminobenzoquinone having the formula ##STR42## wherein R 1 , R 2 , R 3 and R 4 each independently represent a member selected from the group consisting of hydrogen, halogen, lower alkyl and lower alkoxy; R 5 represents a member selected from the group consisting of hydrogen, lower alkyl, hydroxy lower alkyl and amino alkyl of the formula ##STR43## wherein n is 2-6 and R 8 and R 9 each independently represent a member selected from the group consisting of hydrogen, lower alkyl and hydroxy lower alkyl or together with the nitrogen atom to which they are attached form a six-membered heterocycle selected from the group consisting of piperidinyl and morpholinyl; and Z is selected from the group consisting of a. hydroxyl b. ##STR44## wherein R 6 and R 7 each independently are selected from the group consisting of hydrogen, lower alkyl, hydroxy lower alkyl, carbamyl lower alkyl, acetylamino ethyl, mesylamino lower alkyl and benzoylamino lower alkyl, and c. ##STR45## wherein n is 2-6 and R 10 and R 11 each independently are selected from the group consisting of lower alkyl, hydroxy lower alkyl and acetylamino, or together with the nitrogen atom to which they are attached from a six-membered heterocycle selected from the group consisting of piperidinyl and morpholinyl; 2.