Full-body color-changing light-transmitting ceramic tile and preparation method thereof

Abstract

The invention discloses a full-body color-changing light-transmitting ceramic tile and a preparation method thereof. The preparation method comprises the following steps: distributing light-transmitting powder on powder conveying equipment; sucking out the light-transmitting powder in a corresponding area according to a predetermined pattern texture, and backfilling the light-transmitting color-changing powder in the area corresponding to the pattern texture at the same time; conveying the powder on the conveying equipment to forming equipment, and pressing and forming to obtain a ceramic green body; and firing the ceramic green body to obtain the full-body color-changing light-transmitting ceramic tile with at least part of textures having a color-changing and light-transmitting effect. According to the preparation method of the full-body color-changing light-transmitting ceramic tile provided by the invention, a color-changing pigment is added into the light-transmitting powder for coloring to form the light-transmitting color-changing powder, and the light-transmitting color-changing powder is distributed in a special distribution mode to form required textures and show full-body texture.

Description

technical field [0001] The invention relates to a whole-body color-changing light-transmitting ceramic brick and a preparation method thereof, belonging to the technical field of ceramic brick production and manufacturing. Background technique [0002] Due to the difficulty of mining and processing natural stone and the high market price, its widespread use is limited. Therefore, it has become a trend to use ceramic tiles or ceramic plate products similar to natural stone patterns to replace natural stone. Existing ordinary ceramic tiles are usually glazed, inkjet printed, protected glazed, fired and polished to obtain whole-body ceramic tiles, or multi-tube fabrics are used to form a whole body, but there is a certain gap between the texture and natural stone. [0003] In addition, in order to achieve the discoloration effect, neodymium oxide is usually directly applied to the glaze in the existing ceramic tiles, which mainly has the following problems: first, rare earth ne...

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Problems solved by technology

Existing ordinary ceramic tiles usually use surface glaze, inkjet printing, protective glaze, firing and polishing to obtain whole-body ceramic tiles, or use multi-tube fabrics to form a whole body, but there is a certain gap between the texture and natural stone.

[0003] In addition, in order to achieve the discoloration effect, neodymium oxide is usually directly applied to the glaze in the existing ceramic tiles, which mainly has the following problems: first, rare earth neodymium oxide is easy to absorb moisture and carbon dioxide in the air, and neodymium oxide is made into Color-changing glaze, in the firing process, the glaze surface is prone to foaming, which seriously affects the quality of the glaze surface; secondly, neodymium oxide is easy to react with other components in the glaze, and the color of the glaze of different systems is not easy to control; finally, direct application of oxidation Neodymium, which is less effective for color development

In addition, adding color-changing pigments such as neodymium oxide to ceramic ink or glaze, neodymium oxide will react with ceramic ink and glaze to form Nd 2 Si 2 o 7 Color the glaze layer, which is not conducive to the transparency of the glaze layer

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