METHOD FOR THE SYNTHESIS OF NANOSTRUCTURED HYBRID PIGMENTS HAVING PROPERTIES THAT CAN BE SYNTONIZED

摘要

The invention relates to a method for the synthesis of a nanostructured hybrid pigment having syntonizable colloidal and optical properties, comprising: the dispersion of at least one phyllosilicate-type inorganic material in water; and the subsequent addition of at least one water-soluble organic colouring agent, subjected to agitation, the concentration of the phyllosilicate-type inorganic material varying between 25 g/l - 3 g/l, the concentration of the organic colouring agent varying between 1.5 x 10^-6 - 2 x 10^-4 M, the ionic strength varying with the addition of NaCl at a concentration varying between 6.50 x 10^-3 - 1.5 x 10^-4 M, the pH varying between 7 - 11 and the temperature in the dispersion from the above step is at least 25°C. The invention also relates to the pigment obtained from this method and to the use thereof in ink, paint and coating products.