Method to produce decorations, substrates decorated according to the method and the use of an additive to the decorative colour

摘要

Fired decoration production, using a ceramic color containing a UV sensitive optical brightener, is new. Fired decorations are produced on glass, glass-ceramic or ceramic substrates using decoration colors containing, in addition to base enamel and pigments, UV sensitive optical brightener additives which, on UV irradiation, produce a sufficiently high color contrast relative to the substrates that decoration flaws can be detected even in extremely finely patterned decorations before firing. Preferred Features: The additive is added in finely divided form in an amount of 0.05-10 (especially 0.1-1.0) wt.%.