abstract |
The invention relates to agents for dyeing keratin fibres, in particular human hair, containing, in a cosmetic carrier (a) at least one direct dye of formula (I), wherein Het1, Het2 represent a cationic heterocycle; and A1, A2 independently represent a grouping of formulae (VIII) or (IX), n represents a whole number of between 2 - 6, m, p independently represent the numbers 2 or 3. |