Verfahren zum Färben von Keramikoberflächen

摘要

The present invention relates to a method for the colouring of ceramic surfaces. According to said method the surfaces are treated with an aqueous solution of an alkali metal or ammonium dithiosulphatoaurates (I) with a gold concentration of 0.1-10 % by weight, the water is evaporated and the dithiosulphatoaurate (I) is decomposed at temperatures of 300-1400 DEG C.