INCLUSION PIGMENTS BASED ON ZIRCONIUM SILICATE WITH INCLUSIONS OF WHEELS, THEIR PREPARATION AND USE.

摘要

THE INVENTION CONCERNS INCLUSION PIGMENTS BASED ON ZIRCUM SILICATE AS A COVERING SUBSTANCE AND SPINELS FREE OF COBALT, PREFERABLY ZNFE2O4, NIFE2O4 OR (FE, CR) 3O4, AS A DISCRETELY INCLUDED COLOR COMPOUND. PRODUCTION TAKES PLACE THROUGH THE COOKING OF A MIXTURE OF A SOURCE FOR ZIRCONIUM DIOXIDE, A SOURCE FOR SILICON DIOXIDE, MINERALIZERS AND COBALT-FREE OXIDES FOR THE FORMATION OF SPINELS. PIGMENTS ARE CHARACTERIZED BY THEIR GOOD VARIETY AND COLOR STRENGTH AS WELL AS BLEEDING RESISTANCE UNDER USUAL FIRE DECORATION CONDITIONS.