Patent ID: 6286278
Filing Date: 2001-09-11
Classification: C04B

Abstract:
Tile of vitrified stoneware colored in shades from yellow ocher to sienna, obtained starting from ceramic material added with 1% to 10% by wt. of TiO.sub.2 and wherein the surface of the molded tile is treated before ceramic firing with an aqueous or hydroalcoholic solution containing W and Cr inorganic compounds or organic derivatives, in such amount that the applied W is from 5 to 100 g/m.sup.2 of ceramic surface are the applied Cr is from 0.8 to 30g/m.sub.2 and wherein the W and Cr applied on the ceramic surface are in a ratio are in a ratio comprised between 12/1 and 2/1 by w.