METHOD OF PRODUCING TILES BY SINGLE FIRING

• Main Authors: MATSUBARA, TAKANARI, TOKI, TAKAO, OHNUKI, TOHRU, HATANAKA, KIMITATSU
• Format: Patent
• Language: English
• Published: 07.01.1993
• Subjects: ARTIFICIAL STONE; CEMENTS; CERAMICS; CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS; CHEMISTRY; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; GLASS; JOINING GLASS TO GLASS OR OTHER MATERIALS; LIME, MAGNESIA; METALLURGY; MINERAL OR SLAG WOOL; REFRACTORIES; SLAG; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS; SURFACE TREATMENT OF GLASS; TREATMENT OF NATURAL STONE

Disclosed herein are (1) a frit for tile glaze which comprises: SiO2 55 to 65 wt% Al2O3 10 to 18 wt% CaO 18 to 25 wt% Alkali metal oxides 0.5 to 4 wt% ZrO2 0 to 10 wt% B2O3 0 to 2 wt% One or more of MgO, BaO, SrO, and ZnO 0 to 10 wt% in total (2) a tile glaze which comprises 100 parts by weight of the following glaze components (a) to (i) and 0 to 15 parts by weight of pigment. (a) Frit of the following composition: 50 to 90 parts by weight SiO2 55 to 65 wt% Al2O3 10 to 18 wt% CaO 18 to 25 wt% Alkali metal oxides 0.5 to 4 wt% ZrO2 0 to 10 wt% B2O3 0 to 2 wt% One or more of MgO, BaO, SrO, and ZnO 0 to 10 wt% in total (b) Feldspar: 8 to 25 parts by weight (c) Clay: 0.5 to 10 parts by weight (d) Zircon: 0 to 20 parts by weight (e) Quartz: 0 to 10 parts by weight (f) Alumina: 0 to 5 parts by weight (g) Titania: 0 to 10 parts by weight (h) Barium carbonate: 0 to 10 parts by weight (i) Zinc oxide: 0 to 5 parts by weight and (3) a method for producing interior wall tile which comprises applying said tile gaze to green bodies, followed by firing.