METHOD FOR FIXING ON MINERAL PARTICLES OF TALC, QUINONE OR INDOLE ORGANIC MOLECULES, IN PARTICULAR ORGANIC DYEING AGENT MOLECULES

摘要

The invention concerns a method for fixing on mineral particles of talc, quinone or indole organic molecules, in particular, molecules of an organic dyeing agent. Said method consists in solubilizing the organic molecules in an aqueous reducing medium; in adding to said medium the mineral particles such that the weight proportion of the organic molecules relative to the talc ranges substantially between 0.05 % and 2 %; and in separating the solid phase from the liquid phase to obtain composite talc/ organic molecule particles. The inventive method enables to fix in stable manner the organic molecules on the mineral particles of talc, in particular for dyeing the latter or provide them with specific properties such as a protective function for the epidermis against ultraviolet radiation.