USE OF PRECIPITATED SILICOALUMINATE FOR OBTAINING A DYE BY MIXING OR BY IMPREGNATING THE SAME WITH AN INORGANIC PIGMENT, DYE THUS OBTAINED, AND APPLICATION THEREOF FOR DYEING CERAMIC MATERIALS

摘要

The invention relates to the use of precipitated silicoaluminate as a raw material for obtaining a dye, by mixing or by impregnating the same with an inorganic pigment, especially an inorganic pigment based on an iron component. The invention also relates to a dye that can be obtained by calcination, then possible grinding, of a mixture of precipitated silicoaluminate and an inorganic pigment or a precipitated silicoaluminate having an oil absorption DOP of at least 150 ml/100g, which has been previously impregnated by means of an inorganic pigment in the form of a soluble salt. The dye obtained can be used for dyeing ceramic materials such as ceramic tiles, and materials containing hydraulic binders or bituminous materials.