Full-glazed porcelain tile as well as preparation method thereof

Abstract

The invention discloses a full-glazed porcelain tile as well as a preparation method thereof. The tile comprises a blank body and an overglaze on the surface of the blank body, wherein a full-glaze is applied to the overglaze. The full-glazed porcelain tile is characterized in that the overglaze comprises the following chemical components in percent by weight: 13-15% of Al2O3, 60-63% of SiO2, 0.9-1.1% of B2O3, 0.7-0.9% of CaO, 13-14% of MgO, 1.3-1.5% of ZnO, 1.3-1.45% of K2O, 1.4-1.45% of Na2O, 1.38-1.45% of ZrO2 and 3-4% of the balance; the full-glaze comprises the following chemical components in percent by weight: 19-22% of Al2O3, 49-51% of SiO2, 0.2-0.3% of B2O3, 16-18% of CaO, 1.4-1.5% of MgO, 1.5-1.8% of K2O, 2.5-2.7% of NaO2 and 6-7% of the balance. The invention provides a porcelain tile glazing technology which is simple in process and low in cost, and the full-glazed porcelain tile product is high in surface gloss, transparent in glaze layer, clear in pattern and good in antifouling effect, and the yield of superior products in quality is remarkably increased.

Description

technical field [0001] The invention relates to the technical field of porcelain tile production, in particular to a fully glazed porcelain tile and a preparation method thereof. Background technique [0002] Full polish glaze is a kind of special formula glaze that can be polished on the glaze surface. It is the last glaze applied to antique tiles. Full polish glaze porcelain tiles can better realize the physical properties and decorative properties of ceramic tiles. Combining the advantages of antique tiles and polished tiles, the glazed surface is as smooth and bright as polished tiles, and its glazed surface is rich in patterns, heavy or gorgeous in color like antique tiles. After more than 30 years of development, Chinese ceramics have high density, wear resistance, and easy care. From the perspective of their physical properties, they have greatly surpassed natural stone. However, before the emergence of full-glazing technology, the overall decorative function of ceram...

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Problems solved by technology

Although this patent adds ethylene glycol and printing oil in the glaze production process to minimize the occurrence of sticking problems during production, it cannot fundamentally avoid the "snowflake" defect that is easy to stick to the screen in screen printing and occur during glaze polishing etc., and more than three screen printing glaze process costs are high, the process is complicated, the excellent rate is low, the average is only about 90-94%

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