Precious metal decoration matting composition, especially for producing matt gold decorations on porcelain, ceramic or glass, contains a non-softening titanium dioxide-free oxidic and-or silicate matting agent

摘要

A precious metal decoration matting composition, comprising titanium dioxide-free oxidic and/or silicate matting agent of softening temperature above the decoration firing temperature, is new. A composition, for forming a reflection reducing layer under or on a lustrous precious metal preparation-containing layer for producing a precious metal decoration by firing the layers on a silicate substrate, comprises 20-80 wt.% glass frit of 1-10 mu average particle diameter and 20-80 wt.% matting agent selected from oxidic and/or silicate materials and/or their precursors, excluding titanium dioxide, of softening temperature above the firing temperature of the layers and of 1-20 mu average particle diameter. Independent claims are also included for the following: (i) a printing paste comprising 40-80 wt.% of the above composition and 20-60 wt.% of a liquid or thermoplastic printing medium; (ii) production of a precious metal decoration using a reflection reducing layer comprising the above composition; and (iii) a decalcomania comprising the above dried printing paste.