| abstract |
The invention concerns water-insoluble pigments based on double-layer hydroxides and water-soluble dyes, the pigments being obtained by reacting double-layer hydroxides formed in situ and water-soluble anionic dyes. The invention also concerns suitable processes for the production of pigments of this kind for use as the colour medium in washing and cleaning agents, soaps, cosmetics, lacquers, paints, foddstuffs, plastics and other polymers. |