| abstract |
Cationic polymeric dyes having a hue value of h=210°-330° are disclosed, comprising: (a) a polymer backbone, (b) organic dye residues and (c) optionally colorless organic groups, wherein (b) and (c) are covalently bound to the polymer backbone (a), and wherein the cationic charge may independently be part of a dye or leuco organic group. The dyes are characterized by their depth of shade and by their good wash fastnesses, eg to light, shampooing and drying. |