| abstract |
The present invention relates to particles comprising substrates and an anion-binding layer, wherein the anion-binding layer comprises one or more anion-forming organic active compounds or active compound/colorant mixtures. The present invention furthermore relates to processes for the production of particles and to the use thereof in cosmetics, pharmaceuticals, formulations, paints, coatings, plastics, films, in security printing, in security features in documents and identity papers, for colouring seed, for colouring foods or in medicament coatings and for the preparation of pigment compositions and dry preparations. |