Ceramic glaze, method for obtaining age-resistant glazed tiles and resulting tile

N. de solicitud: WO2007ES00352
N. de publicación: WO2008152154 A1

The invention relates to a ceramic glaze of the type that contains water, a frit or mixture of melting frits, a pigment and kaolin, having the following composition:

a) between 30 and 40 wt.-% water; b) between 50 and 65 wt.-% of a frit or mixture of high-melting frits; c) between 0 and 5 wt.-% of a pigment which develops a colour similar to that of the fired substrate; and d) between 3 and 8 wt.-% kaolin.

When used to render ceramic glaze on tiles age resistant, the method comprises the following steps: a ceramic glaze having the above-mentioned composition is applied to the raw ceramic tile; the tiles are subjected to a normal firing cycle; the surface is treated with a cleaning solution; the fired tiles are covered with an inorganic photocatalytic coating containing TiO2; and a heat treatment is performed for between 5 and 20 minutes at temperatures of between 100 and 200 DEG C.

Si desea obtener más información sobre este contenido contacte con nuestro Centro de Documentación

Regístrate para leer más