| abstract |
The invention relates to a water-soluble polymeric dye comprising annanionic or nonionic chromophore unit covalently bound to a polymer backbone, whereinnthe polymer backbone is based on a water-soluble anionic or nonionic polymer and thenpolymer backbone comprises a) at least 2.5 anionic functional groups or at least 5nhydroxyl functional groups, or a combination thereof, per average chromophore unit fornan anionic chromophore unit or b) at least 3.5 anionic functional groups or at least 7nhydroxyl functional groups, or a combination thereof, per average chromophore unit, fornan nonionic chromophore unit. The polymeric dye according to the invention has goodnskin and fabric washability, and can be applied in paints and ink formulations for usenmarkers and ink jet cartridges. |