Use of pigments based on specific crystal phases of system

摘要

Use of pigments based on the crystal phases in the system: Fe2O3-FeO-CuO-Cu2O-TiO2 in the mfr. of black of blackish glass enamels is claimed, in which the pigments allow later recycling of glass products, decorated with these enamels, produced from the building and automobile industries in a glass melting bath for the mfr. of green flat glass.