A kind of slurry for forming ceramic tile and porcelain polishing surface by wet spraying process and its application method

Abstract

The invention provides a slurry for forming a ceramic polishing surface of a ceramic brick through a wet spray process. The slurry comprises SiO2, Al2O3, K2O and Na2O, wherein the SiO2 / Al2O3 / (K2O+Na2O) weight ratio is (65-74):(17-22):(79); and K2O+Na2O represents the total content of the both. The invention also provides a method for preparing a ceramic brick from the slurry. The ceramic brick with a ceramic polishing surface prepared from the slurry has better strength, hardness, wear resistance and chemical etching resistance.

Description

technical field [0001] The invention relates to the field of architectural ceramic tiles, in particular to a slurry for forming a polished surface of ceramic tiles by a wet spraying process and a method for preparing a polished surface of ceramic tiles by using the slurry. Background technique [0002] With the gradual improvement of people's aesthetic vision, they are more and more inclined to the series of physical and chemical performance ceramic tiles with rich patterns on the surface, especially high wear resistance, high hardness and good flatness. Traditional micro-powder polished tiles have good anti-fouling, wear-resistant and high hardness, but limited by mechanical distribution equipment, there has been little breakthrough in more realistically simulating the fine decorative texture and texture of natural stone, so it can be passed on its surface. Ink-jet printing equipment prints out exquisite patterns of spray-printed ceramic tiles, which are increasingly used o...

AI Technical Summary

Problems solved by technology

In this technical solution, the spray-printed pattern is on the surface of the non-transparent glaze layer, and the glaze is covered on the spray-printed ink pattern layer. First, in order to have better recognition and clarity when spray-printing the pattern, The surface glaze contains a certain proportion of zirconium ions to enhance the whiteness, but the cost of zirconium ions is relatively high; secondly, because the conventional ceramic ink only covers the surface instead of penetrating into the surface glaze layer, in order to prevent the pigment from being exposed and easy to be trampled Therefore, a transparent glaze layer must be added to the surface layer, so that the pattern is protected and the color pattern can be transparently presented. Therefore, the transparent glaze layer, that is, the full glaze layer, contains silicon-aluminum components as the skeleton of the body. Both the body and the surface glaze layer are greatly reduced, so it is not wear-resistant and the hardness is not high, but it is also used in places where the surface contacts are often trampled

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