| abstract |
Ready to use composition for oxidation dyeing of keratinic fibres, especially human hair comprises (in a suitable medium): (a) at least one oxidation base selected from p-phenylenediamines, bisphenylalkylenediamines and their acid addition salts; (b) at least one meta-diphenol type coupler or its acid addition salt; (c) at least one direct cationic dye e.g. of formula (I); and (d) at least one oxidising agent: R1 = H, 1-4 C alkoxy, halo or amino; R2 = H or 1-4 C alkyl; or may form a benzene or a heterocyclic ring (optionally containing O and/or substituted by one or more 1-4 C alkyl) with a carbon in the benzene ring; R3 = H or halo; D1, D2 = N or CH; m = 0 or 1; provided that when R1 = a non-substituted amino group, then D1 and D2 are both CH and m = 0; X<-> = an anion, especially chloride, methylsulphate or acetate; A = a group of formula (a) or (h) etc.; R' = 1-4C alkyl. |