阅读说明：本技术 一种陶瓷干粒釉、晶钻闪光陶瓷砖及其制备方法 (Ceramic dry grain glaze and crystal diamond flashing ceramic tile and preparation method thereof ) 是由 柯善军 蒙臻明 田维 马超 范伟峰 于 2021-11-16 设计创作，主要内容包括：本发明属于建筑陶瓷技术领域,具体公开了一种陶瓷干粒釉、晶钻闪光陶瓷砖及其制备方法。陶瓷干粒釉的原料组成包括含锆透明熔块干粒和锆英砂,所述含锆透明熔块干粒的锆源为氧氯化锆。晶钻闪光陶瓷砖包括坯体层和面釉层,面釉层由陶瓷干粒釉烧制而成。本发明采用含锆透明干粒釉为基础釉,通过外加锆英砂颗粒,由于含锆透明干粒釉中存在少量均匀分布的锆,使釉熔体中的锆处于熔解饱和状态,可有效防止外加锆英砂颗粒在釉熔体中的高温熔融。同时,含锆透明干粒釉在冷却过程中形成的硅酸锆晶体以锆英砂颗粒为析晶载体,使锆英砂颗粒进一步长大,晶体形貌棱角更为分明,使制得的陶瓷干粒釉在光照条件下可呈现类似钻石的闪光效果。(The invention belongs to the technical field of building ceramics, and particularly discloses a ceramic dry grain glaze and crystal diamond flashing ceramic tile and a preparation method thereof. The raw material composition of the ceramic dry particle glaze comprises zirconium-containing transparent frit dry particles and zircon sand, wherein a zirconium source of the zirconium-containing transparent frit dry particles is zirconium oxychloride. The crystal diamond glittering ceramic tile comprises a green body layer and a surface glaze layer, wherein the surface glaze layer is formed by firing ceramic dry grain glaze. The invention adopts the zirconium-containing transparent dry granular glaze as the basic glaze, and by adding zircon sand particles, because a small amount of uniformly distributed zirconium exists in the zirconium-containing transparent dry granular glaze, the zirconium in the glaze melt is in a molten saturated state, and the high-temperature melting of the added zircon sand particles in the glaze melt can be effectively prevented. Meanwhile, zirconium silicate crystals formed in the cooling process of the zirconium-containing transparent dry grain glaze take zircon sand particles as crystallization carriers, so that the zircon sand particles are further grown, the edges and corners of the crystal appearance are more distinct, and the prepared ceramic dry grain glaze can have a diamond-like flash effect under the illumination condition.)

1. The ceramic dry particle glaze is characterized by comprising the raw material components of zirconium-containing transparent frit dry particles and zircon sand, wherein a zirconium source of the zirconium-containing transparent frit dry particles is zirconium oxychloride.

2. The ceramic dry-grain glaze according to claim 1, wherein the mass ratio of the zirconium-containing transparent frit dry grains to the zircon sand is (94-97): (3-6).

3. The dry ceramic grain glaze of claim 1, wherein the zircon sand has a purity of not less than 95 wt%; the grain diameter of the zircon sand is 80-120 meshes.

4. The dry ceramic glaze according to claim 1, wherein the glaze contains iron oxideThe chemical composition of the zirconium transparent frit dry particles comprises the following components in percentage by weight: 48.21-58.93% SiO₂16.12-19.71 percent of Al₂O₃0.18-0.22% Fe₂O₃0.03 to 0.04 percent of TiO₂12.53-15.31% of CaO, 2.22-2.71% of MgO, 1.04-1.28% of ZnO and 1.67-2.05% of K₂O, 5.51-6.74% of Na₂O, 0.55-1.05% ZrO₂1.72-2.10% of loss on ignition; the particle size of the zirconium-containing transparent frit dry particles is 80-120 meshes.

5. A preparation method of the dry ceramic glaze particles is characterized in that the preparation method of the dry ceramic glaze particles is used for preparing the dry ceramic glaze particles as claimed in any one of claims 1 to 4.

6. The method for preparing the dry particle glaze of claim 5, wherein the preparation process of the dry particles of the zirconium-containing transparent frit comprises the following steps:

(1) mixing zirconium oxychloride with other raw materials for preparing zirconium-containing transparent frit dry particles, melting, pouring into water, and quenching, wherein the melting temperature is 1450-;

(2) and crushing and grading the frit particles to obtain the zirconium-containing transparent frit dry particles.

7. A crystal-diamond sparkling ceramic tile, which comprises a green body layer and a glaze layer, wherein the glaze layer is formed by firing the ceramic dry grain glaze of any one of claims 1 to 4.

8. The crystal diamond sparkling ceramic tile according to claim 7, wherein a ground glaze layer, an ink-jet printing pattern layer and a protective glaze layer are sequentially arranged between the green body layer and the overglaze layer from bottom to top, and raw materials for preparing the protective glaze layer comprise zirconium-containing transparent frit dry particles and stamp-pad ink, and the stamp-pad ink comprises polyhydric alcohol.

9. The method for preparing the crystal-drilled sparkling ceramic tile is used for preparing the crystal-drilled sparkling ceramic tile according to claim 8.

10. The method for preparing the crystal-diamond sparkling ceramic tile according to claim 9, wherein the method comprises the following steps:

mixing the zirconium-containing transparent frit dry particles with stamp-pad ink, and grinding to obtain a protective glaze;

sequentially applying ground coat, ink-jet printing pattern, protective glaze and ceramic dry grain glaze on the green body layer to form a ground coat layer, an ink-jet printing pattern layer, a protective glaze layer and a surface glaze layer to obtain a semi-finished product;

and firing the semi-finished product, and then edging, polishing and waxing to obtain the crystal diamond sparkling ceramic tile.

Technical Field

The invention belongs to the technical field of building ceramics, and particularly relates to a ceramic dry grain glaze and crystal diamond flashing ceramic tile and a preparation method thereof.

Background

Natural stone is a building material decorative material, which is highly popular with consumers due to its abundant pattern colors and line textures. But the exploitation of natural stone as a non-renewable resource is gradually limited. The ceramic ink-jet printing technology enables ceramic tiles with the effect of imitating natural stone to be more and more vivid. However, the flashing effect of the special natural stone is difficult to be expressed by adopting the ceramic tile process technology.

At present, the preparation method with the flash effect mainly comprises three methods: the first is to adopt dry glaze particles with different particle sizes and different high temperature resistances to combine with a half-polishing process to realize the glittering effect on the surface of the glaze layer; secondly, high-temperature-resistant flash mica is introduced into the glaze to realize the flash effect of the glaze layer; the third is to introduce special zircon sand directly into the glaze layer to realize the glitter of the glaze layer. In the mode, the first sparkling point is on the surface of the glaze layer, so that the stereoscopic impression and the layering impression are lacked, and the decorative effect is poor. The second type of the flashing-resistant mica has few varieties, most colors are golden yellow and silver, the color is single, and the flashing effect of the flashing mica is greatly reduced due to the erosion of the high-temperature glaze layer melt. The third decorative effect is closer to the natural flash stone, and the process utilizes the characteristics of the zircon sand to realize the flash effect of the ceramic glaze.

At present, the preparation of the sparkling effect glaze material by adopting zircon sand mainly comprises two preparation methods: one is mixing zircon sand with high purity with transparent glaze raw material, melting at high temperature, quenching with water, etc. to prepare flash dry grain glaze; and the other method is to mix the transparent glaze raw materials, prepare dry granular glaze through processes of high-temperature melting, water quenching and the like, and then mix the zircon sand and the dry granular glaze to obtain the flash dry granular glaze. In the flash dry granular glaze prepared by the first method, because the zircon sand is melted at high temperature for a long time, and the edges and corners of the zircon sand particles are melted, the flash effect of the glaze prepared by using the flash dry granular glaze is greatly reduced, and the problem of unstable flash effect is easy to occur. The flash glaze prepared by the second method has the advantages that zircon sand particles are added externally, the fusion degree of the zircon sand particles and the glaze is relatively poor, so that the glaze prepared by the flash dry particle glaze is easy to crack between partial particles and a glaze layer, the surface is easy to hide dirt, the flash effect of the glaze is unnatural, and partial edges and corners of zircon sand are fused in the high-temperature sintering process, so that the flash effect is poor.

Disclosure of Invention

The invention provides a ceramic dry grain glaze, a crystal diamond sparkling ceramic tile and a preparation method thereof, which are used for solving one or more technical problems in the prior art and at least providing a beneficial selection or creation condition.

In order to overcome the technical problems, the first technical scheme of the invention is to provide a ceramic dry grain glaze.

The raw material composition of the ceramic dry grain glaze comprises zirconium-containing transparent frit dry grains and zircon sand, and the zirconium source of the zirconium-containing transparent frit dry grains is zirconium oxychloride.

The invention adopts the zirconium-containing transparent dry grain glaze as the basic glaze, and zircon sand particles are added to realize the crystal diamond flashing effect. Because a small amount of uniformly distributed zirconium exists in the zirconium-containing transparent dry-particle glaze, the zirconium in the glaze melt is in a melting saturation state, and the high-temperature melting of the added zircon sand particles in the glaze melt can be effectively prevented. Meanwhile, zirconium ions in the zirconium-containing transparent dry-particle glaze are mixed with silicon in the glaze melt in the high-temperature cooling process to form zirconium silicate crystals to be separated out. Because the atoms on the crystal boundary are disorderly arranged and have a plurality of defects of vacancy, dislocation, bond deformation and the like, the crystal boundary is in a stress distortion state, so the energy level on the crystal boundary is higher, and the crystal boundary becomes a region which is preferentially nucleated when solid phase transformation is carried out, therefore, zirconium silicate crystals formed by the zirconium-containing transparent dry grain glaze in the cooling process take zircon sand particles as crystallization carriers, so that the zircon sand particles are further grown, the edges and corners of the crystal appearance are more clear, and the glittering effect can be greatly enhanced. Because the zircon sand crystal is in a square cone shape or a hexagonal cone shape, the cone structure is similar to the shape of a diamond, the refractive index of the zircon sand is 1.9-2.0, the refractive index of the glass glaze is about 1.5, and the relative light refractive index difference of the zircon sand and the glass glaze is large, the ceramic dry grain glaze can present a diamond-like crystal diamond flashing effect under the illumination condition.

Meanwhile, zirconium oxychloride is selected as a zirconium source in the zirconium-containing transparent frit dry particles, so that a uniform high-temperature transparent melt can be formed, and if zirconium silicate or zirconium oxide is introduced as the zirconium source, the glaze is easily opacified, the permeability of the ceramic dry particle glaze is affected, and the glittering effect of the glaze is reduced. In addition, the solubility of zirconium oxychloride in the glass glaze melt is low, a small amount of zirconium oxychloride is melted in the glass glaze, a uniform high-temperature transparent melt saturated by zirconium is formed, the melting of external zircon sand particles in the glass glaze melt is prevented, and the realization of the glittering effect of the ceramic dry particle glaze is effectively guaranteed.

In addition, the base glaze of the invention is the zirconium-containing transparent dry particle glaze, which has better fusion with zircon sand particles, and can effectively prevent the defect that microcracks occur due to incompatibility between the zircon sand and the base after the ceramic dry particle glaze is polished, thereby effectively improving the antifouling performance of the glaze layer.

As a further improvement of the above scheme, the mass ratio of the zirconium-containing transparent frit dry particles to the zircon sand is (94-97): (3-6).

Specifically, by adding a proper amount of zircon sand in the basic glaze containing zirconium transparent frit dry particles, the glittering effect of the ceramic dry particle glaze can be improved on the premise of ensuring the transparency of the glaze. If the added zircon sand is too little, enough glittering particles cannot be formed, so that the glittering effect is influenced; excessive zircon sand is added, so that the transparency of the glaze surface is easily influenced due to excessive crystallization, and the flash effect is reduced.

Preferably, the purity of the zircon sand is not less than 95 wt%. Specifically, the purity of the zircon sand refers to the mass percentage of pure zircon sand contained in the zircon sand raw material; the zircon sand with low purity contains more impurities, which is not beneficial to the color and the transparent feeling of the glaze layer.

Preferably, the particle size of the zircon sand is 80-120 meshes, and if the particle size of the zircon sand is too small, agglomeration is easy to generate, so that the zircon sand is not uniformly mixed with the dry particles of the zirconium-containing transparent frit; the particle size of the zircon sand is too large, the glaze layer is easy to be rough due to the high-temperature resistance of the zircon sand, and the large-particle zircon sand is easy to fall off integrally in the polishing stage of the glaze, so that the glaze has defects.

As a further improvement of the above scheme, the chemical composition of the zirconium-containing transparent frit dry particles comprises, by weight: 48.21-58.93% SiO₂16.12-19.71 percent of Al₂O₃0.18-0.22% Fe₂O₃0.03 to 0.04 percent of TiO₂12.53-15.31% of CaO, 2.22-2.71% of MgO, 1.04-1.28% of ZnO and 1.67-2.05% of K₂O, 5.51-6.74% of Na₂O, 0.55-1.05% ZrO₂1.72-2.10% of loss on ignition.

In particular, the invention controls SiO in the dry particles of the zirconium-containing transparent frit₂、Al₂O₃And the dosage relation of the fusing agent, so as to ensure the transparency of the dry particles of the fusion cakes; meanwhile, a certain amount of zirconium is introduced to ensure that the zirconium in the glaze melt is in a molten saturated state, thereby laying a foundation for the flashing effect of the ceramic dry particle glaze.

Preferably, the particle size of the zirconium-containing transparent frit dry particles is 80-120 meshes, and the zirconium-containing transparent frit dry particles with proper particle size are beneficial to obtaining the optimal glaze flashing effect.

The second technical scheme of the invention is to provide a preparation method of the ceramic dry grain glaze.

In particular to a preparation method of a ceramic dry-particle glaze, which is used for preparing the ceramic dry-particle glaze.

As a further improvement of the above scheme, the preparation process of the zirconium-containing transparent frit dry particles comprises the following steps:

(1) mixing zirconium oxychloride with other raw materials for preparing zirconium-containing transparent frit dry particles, melting, pouring into water, and quenching, wherein the melting temperature is 1450-;

(2) and crushing and grading the frit particles to obtain the zirconium-containing transparent frit dry particles.

Specifically, in the step (1), the melting temperature and the heat preservation time are controlled within a proper range, so that dry fritted particles with good comprehensive performance can be obtained, the melting temperature is too low, the heat preservation time is too short, volatile components in the fritted glaze cannot be decomposed and removed well, and the glaze quality of the dry ceramic particle glaze can be affected.

Preferably, the crushing in the step (2) is carried out by a jet mill, and the zirconium-containing transparent dry particles with the particle size of 80-120 meshes are obtained after classification treatment.

The third technical scheme of the invention is to provide application of the ceramic dry particle glaze.

The crystal diamond glittering ceramic tile comprises a green body layer and a surface glaze layer, wherein the surface glaze layer is formed by firing the ceramic dry grain glaze.

Preferably, a ground coat layer, an inkjet printing pattern layer and a protective glaze layer are sequentially arranged between the body layer and the cover glaze layer from bottom to top, raw materials for preparing the protective glaze layer comprise zirconium-containing transparent frit dry particles and stamp-pad ink, and the stamp-pad ink comprises polyhydric alcohol.

Specifically, in order to further enrich the decorative effect of the crystal diamond glittering ceramic tile, patterns can be printed between the green body layer and the overglaze layer in an ink-jet mode to form an ink-jet printing pattern layer, and base glaze is applied to the green body layer and the ink-jet printing pattern layer in an adaptive mode, wherein the base glaze only can be the base glaze of a common ceramic tile to form a base glaze layer; and applying a protective glaze between the ink-jet printing pattern layer and the surface glaze layer to form a protective glaze layer.

The raw materials for preparing the protective glaze are added with the stamp-pad ink, and the stamp-pad ink contains the polyalcohol, and the main purposes are as follows: the polyol stamp-pad ink and the oily ink-jet printing ink have good compatibility, can effectively overcome the defect of pattern texture diffusion caused by the incompatibility between an oil solvent in the ink-jet printing ink and an aqueous glaze material, and is favorable for protecting the compatibility between glaze and ceramic dry particle glaze, thereby reducing the defect of the fired glaze surface.

Preferably, the polyol is selected from ethylene glycol or glycerol.

Preferably, the mass ratio of the zirconium-containing transparent frit dry particles to the stamp-pad ink in the protective glaze is 1: (1-1.5).

The fourth technical scheme of the invention is to provide a preparation method of the crystal-drilled sparkling ceramic tile.

Particularly, the preparation method of the crystal diamond sparkling ceramic tile is used for preparing the crystal diamond sparkling ceramic tile.

Preferably, the preparation method of the crystal-drilled sparkling ceramic tile comprises the following steps:

mixing the zirconium-containing transparent frit dry particles with stamp-pad ink, and grinding to obtain a protective glaze;

preparing the dry ceramic grain glaze according to the preparation method of the dry ceramic grain glaze;

sequentially applying ground coat, ink-jet printing pattern, protective glaze and ceramic dry grain glaze on the green body layer to form a ground coat layer, an ink-jet printing pattern layer, a protective glaze layer and a surface glaze layer to obtain a semi-finished product;

and firing the semi-finished product, and then edging, polishing and waxing to obtain the crystal diamond sparkling ceramic tile.

Further preferably, the glaze applying mode of the ground glaze adopts a glaze pouring process.

Further preferably, the accuracy of the inkjet printed pattern is 360-540 dpi.

Further preferably, the particle size of the protective glaze is 250-325 meshes.

Further preferably, the glazing mode of the protective glaze adopts screen printing, and the hole particles of the screen are 200 meshes.

Preferably, the ceramic dry particle glaze is applied by a belt dry particle machine, and the ceramic dry particle glaze is sprayed and fixed by glue special for the ceramic dry particle glaze, wherein the application amount of the ceramic dry particle glaze is 800 g/square meter and the spraying amount of the glue is 180 g/square meter.

More preferably, the sintering temperature is 1200-1220 ℃, and the sintering period is 50-55 minutes.

The technical scheme provided by the embodiment of the application at least has the following technical effects or advantages:

the invention adopts the zirconium-containing transparent dry granular glaze as the basic glaze, and by adding zircon sand particles, because a small amount of uniformly distributed zirconium exists in the zirconium-containing transparent dry granular glaze, the zirconium in the glaze melt is in a molten saturated state, and the high-temperature melting of the added zircon sand particles in the glaze melt can be effectively prevented. Meanwhile, zirconium silicate crystals formed in the cooling process of the zirconium-containing transparent dry grain glaze take zircon sand particles as crystallization carriers, so that the zircon sand particles are further grown, the edges and corners of the crystal appearance are more distinct, and the prepared ceramic dry grain glaze can have a diamond-like flash effect under the illumination condition.

Zirconium oxychloride is selected as a zirconium source in the dry particles of the zirconium-containing transparent frit, so that a uniform high-temperature transparent melt can be formed, the permeability of the dry particles of the zirconium-containing transparent frit can be guaranteed, the solubility of the zirconium oxychloride in a glass glaze melt is low, a small amount of zirconium oxychloride is melted in a glass glaze, the melting of additional zircon sand particles in the glass glaze melt can be prevented, and the edges and corners of zircon sand are kept, so that the realization of the glittering effect of the ceramic dry particle glaze is effectively guaranteed.

The zirconium-containing transparent dry glaze particles have good fusion with zircon sand particles, and can effectively prevent the zircon sand from generating micro cracks due to incompatibility with a foundation after the ceramic dry glaze particles are polished, thereby improving the antifouling property of a glaze layer.

Drawings

FIG. 1 is a sample plot of a ceramic tile prepared according to comparative example 1;

FIG. 2 is a sample view of a brilliant diamond sparkling ceramic tile prepared in example 1;

FIG. 3 is a micrograph of a ceramic tile prepared according to comparative example 1;

FIG. 4 is a micrograph of a brilliant diamond sparkling ceramic tile prepared according to example 1.

Detailed Description

The present invention is described in detail below by way of examples to facilitate understanding of the present invention by those skilled in the art, and it is to be specifically noted that the examples are provided only for the purpose of further illustrating the present invention and are not to be construed as limiting the scope of the present invention.

Example 1

A ceramic dry particle glaze comprises the raw material components of zirconium-containing transparent frit dry particles and zircon sand, wherein: the mass ratio of the zirconium-containing transparent frit dry particles to the zircon sand is 95: 5; the chemical composition of the zirconium-containing transparent frit dry particles comprises 53.57% by weight of SiO₂17.92% of Al₂O₃0.20% of Fe₂O₃0.03% of TiO₂13.92 percent of CaO, 2.47 percent of MgO, 1.16 percent of ZnO and 1.86 percent of K₂O, 6.13% of Na₂O, 0.85% ZrO₂1.89 percent of loss on ignition, wherein the zirconium source of the dry particles of the zirconium-containing transparent frit is zirconium oxychloride, and the particle size of the dry particles of the zirconium-containing transparent frit is 120 meshes of sieve; the purity of the zircon sand is 96wt%, and the particle size of the zircon sand is 120 meshes.

A preparation method of a ceramic dry grain glaze comprises the following steps:

(1) mixing zirconium oxychloride with other raw materials for preparing zirconium-containing transparent frit dry particles according to the raw material ratio, placing the mixture in a frit furnace to melt for 8 hours at 1500 ℃, and then pouring high-temperature melt into water to quench so as to obtain frit particles;

(2) carrying out dry crushing and grading treatment on the frit granules prepared in the step (1) by adopting an airflow mill to obtain the frit granules

Dry particles of zirconium-containing transparent frit;

(3) and mixing the zirconium-containing transparent frit dry particles with zircon sand to prepare the ceramic dry particle glaze.

The utility model provides a crystal brill ceramic tile that glistens, from lower to upper includes body layer, ground coat layer, ink jet printing pattern layer, protection glaze layer and overglaze layer in proper order, wherein: the overglaze layer was obtained by firing the ceramic dry-grain glaze obtained in the present example.

A preparation method of crystal-drilled sparkling ceramic tile comprises the following steps:

(1) dry pressing the blank, drying, and spraying a ground coat on the blank by adopting a glaze spraying process to form a ground coat layer; then, ink-jet printing is carried out on the decorative pattern with the precision of 360dpi on the ground coat layer to form an ink-jet printing pattern layer;

(2) mixing zirconium-containing transparent frit dry particles with ethylene glycol according to the weight ratio of 1:1, and grinding for 6 hours in a ball mill to obtain protective glaze with the particle size of 325 meshes;

(3) uniformly mixing the zirconium-containing transparent frit dry particles with zircon sand to obtain ceramic dry particle glaze;

(4) forming a protective glaze layer on the ink-jet printing pattern layer prepared in the step (1) by adopting a screen printing protective glaze prepared in the step (2) with the aperture of 200 meshes; then, distributing the dry ceramic grain glaze prepared in the step (3) on the protective glaze layer by adopting a belt dry grain machine, wherein the distribution amount of the dry ceramic grain glaze is 800 g/square meter; spraying glue containing acrylic resin, wherein the spraying amount of the glue is 180 g/square meter, and obtaining a semi-finished product;

(5) placing the semi-finished product prepared in the step (4) in a roller kiln, and firing at the firing temperature of 1200 ℃ for 50 minutes; after edging, polishing and waxing, the crystal diamond sparkling ceramic tile sample of the embodiment is obtained.

Example 2

A ceramic dry particle glaze comprises the raw material components of zirconium-containing transparent frit dry particles and zircon sand, wherein: the mass ratio of the zirconium-containing transparent frit dry particles to the zircon sand is 97: 3; the chemical composition of the zirconium-containing transparent frit dry particles comprises 48.80% by weight of SiO₂19.71% of Al₂O₃0.22% of Fe₂O₃0.03% of TiO₂15.31% CaO, 2.71% MgO, 1.28% ZnO, 2.05% K₂O, 6.74% Na₂O, 1.05% ZrO₂2.10 percent of loss on ignition, wherein the zirconium source of the zirconium-containing transparent frit dry particles is zirconium oxychloride, and the particle size of the zirconium-containing transparent frit dry particles is 120 meshes of sieve; zircon sand purity of 97wt% of zircon sand, and the grain diameter of zircon sand is 100 meshes.

A preparation method of a ceramic dry grain glaze comprises the following steps:

(1) mixing zirconium oxychloride with other raw materials for preparing zirconium-containing transparent frit dry particles according to the raw material ratio, placing the mixture in a frit furnace to melt for 9 hours at the temperature of 1480 ℃, and then pouring high-temperature melt into water to quench so as to obtain frit particles;

(2) carrying out dry crushing and grading treatment on the frit particles prepared in the step (1) by adopting an airflow mill to obtain zirconium-containing transparent frit dry particles;

(3) and mixing the zirconium-containing transparent frit dry particles with zircon sand to prepare the ceramic dry particle glaze.

The utility model provides a crystal brill ceramic tile that glistens, from lower to upper includes body layer, ground coat layer, ink jet printing pattern layer, protection glaze layer and overglaze layer in proper order, wherein: the overglaze layer was obtained by firing the ceramic dry-grain glaze obtained in the present example.

A preparation method of crystal-drilled sparkling ceramic tile comprises the following steps:

(1) dry pressing the blank, drying, and spraying a ground coat on the blank by adopting a glaze spraying process to form a ground coat layer; then, ink-jet printing is carried out on the decorative pattern with the precision of 540dpi on the ground coat layer to form an ink-jet printing pattern layer;

(2) mixing the zirconium-containing transparent frit dry particles with glycerol according to the weight ratio of 1:1.5, and grinding for 5.5 hours in a ball mill to obtain protective glaze with the particle size of 325 meshes;

(3) uniformly mixing the zirconium-containing transparent frit dry particles with zircon sand to obtain ceramic dry particle glaze;

(4) forming a protective glaze layer on the ink-jet printing pattern layer prepared in the step (1) by adopting a screen printing protective glaze prepared in the step (2) with the aperture of 200 meshes; then, distributing the dry ceramic grain glaze prepared in the step (3) on the protective glaze layer by adopting a belt dry grain machine, wherein the distribution amount of the dry ceramic grain glaze is 800 g/square meter; spraying acrylic resin containing glue with the spraying amount of 180 g/square meter to obtain a semi-finished product;

(5) placing the semi-finished product prepared in the step (4) in a roller kiln, and firing at 1180 ℃ for 50 minutes; after edging, polishing and waxing, the crystal diamond sparkling ceramic tile sample of the embodiment is obtained.

Example 3

A ceramic dry particle glaze comprises the raw material components of zirconium-containing transparent frit dry particles and zircon sand, wherein: the mass ratio of the zirconium-containing transparent frit dry particles to the zircon sand is 94: 6; the chemical composition of the zirconium-containing transparent frit dry particles comprises 58.42% by weight of SiO₂16.12% of Al₂O₃0.18% of Fe₂O₃0.04% of TiO₂12.53% CaO, 2.22% MgO, 1.04% ZnO, 1.67% K₂O, 5.51% of Na₂O, 0.55% ZrO₂1.72 percent of loss on ignition, wherein the zirconium source of the dry particles of the zirconium-containing transparent frit is zirconium oxychloride, and the particle size of the dry particles of the zirconium-containing transparent frit is 100 meshes; the purity of the zircon sand is 97wt%, and the particle size of the zircon sand is 100 meshes.

A preparation method of a ceramic dry grain glaze comprises the following steps:

(1) mixing zirconium oxychloride with other raw materials for preparing zirconium-containing transparent frit dry particles according to the raw material ratio, placing the mixture in a frit furnace to melt for 10 hours at 1520 ℃, and then pouring high-temperature melt into water to quench so as to obtain frit particles;

(2) carrying out dry crushing and grading treatment on the frit particles prepared in the step (1) by adopting an airflow mill to obtain zirconium-containing transparent frit dry particles;

(3) and mixing the zirconium-containing transparent frit dry particles with zircon sand to prepare the ceramic dry particle glaze.

The utility model provides a crystal brill ceramic tile that glistens, from lower to upper includes body layer, ground coat layer, ink jet printing pattern layer, protection glaze layer and overglaze layer in proper order, wherein: the overglaze layer was obtained by firing the ceramic dry-grain glaze obtained in the present example.

A preparation method of crystal-drilled sparkling ceramic tile comprises the following steps:

(1) dry pressing the blank, drying, and spraying a ground coat on the blank by adopting a glaze spraying process to form a ground coat layer; then, ink-jet printing is carried out on the decorative pattern with the precision of 360dpi on the ground coat layer to form an ink-jet printing pattern layer;

(2) mixing zirconium-containing transparent frit dry particles with ethylene glycol according to the weight ratio of 1:1, and grinding for 5 hours in a ball mill to obtain protective glaze with the particle size of 325 meshes;

(3) uniformly mixing the zirconium-containing transparent frit dry particles with zircon sand to obtain ceramic dry particle glaze;

(4) forming a protective glaze layer on the ink-jet printing pattern layer prepared in the step (1) by adopting a screen printing protective glaze prepared in the step (2) with the aperture of 200 meshes; then, distributing the dry ceramic glaze particles prepared in the step (3) on the protective glaze layer by adopting a belt dry particle machine, wherein the distribution amount of the dry ceramic glaze particles is 750 g/square meter; spraying glue containing acrylic resin, wherein the spraying amount of the glue is 160 g/square meter, and obtaining a semi-finished product;

(5) placing the semi-finished product prepared in the step (4) in a roller kiln, and firing the semi-finished product at the firing temperature of 1220 ℃ for 55 minutes; after edging, polishing and waxing, the crystal diamond sparkling ceramic tile sample of the embodiment is obtained.

Example 4

The ceramic dry-grain glaze of example 4 is different from that of example 1 in that the mass ratio of the zirconium-containing transparent frit dry grains to the zircon sand in the ceramic dry-grain glaze of example 4 is 98: 2; the chemical composition of the zirconium-containing transparent frit dry particles, the zirconium source and particle size of the zirconium-containing transparent frit dry particles, and the purity and particle size of the zircon sand were the same as in example 1.

The preparation method of the ceramic dry grain glaze, the crystal diamond sparkling ceramic tile and the preparation method of the ceramic dry grain glaze in the embodiment 4 are the same as those in the embodiment 1.

Example 5

The ceramic dry-grain glaze of example 5 is different from that of example 1 in that the mass ratio of the zirconium-containing transparent frit dry grains to the zircon sand in the ceramic dry-grain glaze of example 5 is 93: 7; the chemical composition of the zirconium-containing transparent frit dry particles, the zirconium source and particle size of the zirconium-containing transparent frit dry particles, and the purity and particle size of the zircon sand were the same as in example 1.

The preparation method of the ceramic dry grain glaze, the crystal diamond sparkling ceramic tile and the preparation method of the ceramic dry grain glaze in the embodiment 5 are the same as those in the embodiment 1.

Comparative example 1

A ceramic dry particle glaze comprises the raw material components of transparent frit dry particles and zircon sand, wherein: the transparent frit dry particles do not contain zirconium, and the mass ratio of the transparent frit dry particles to the zircon sand is 95: 5; the chemical composition of the transparent frit dry particles comprises 54.03% by weight of SiO₂18.08% of Al₂O₃0.20% of Fe₂O₃0.03% of TiO₂14.04% of CaO, 2.49% of MgO, 1.17% of ZnO and 1.88% of K₂O, 6.18% of Na₂O, 1.90 percent of loss on ignition, and the particle size of the transparent frit dry particles is 120 meshes of sieve; the purity of the zircon sand is 96 percent, and the particle size of the zircon sand is 120 meshes.

The ceramic dry-grain glaze of comparative example 1 differs from example 1 in that the transparent frit dry grains in the ceramic dry-grain glaze of comparative example 1 do not contain zirconium; the mass ratio of the transparent frit dry particles to the zircon sand, the particle size of the transparent frit dry particles, and the purity and particle size of the zircon sand were the same as in example 1.

The preparation method of the dry ceramic glaze, the ceramic tile and the preparation method of the ceramic tile in the comparative example 1 are the same as those in the example 1.

Comparative example 2

A ceramic dry particle glaze comprises the raw material components of zirconium-containing transparent frit dry particles and zircon sand, wherein: the mass ratio of the zirconium-containing transparent frit dry particles to the zircon sand is 95: 5; the chemical composition of the zirconium-containing transparent frit dry particles comprises 53.57% by weight of SiO₂17.92% of Al₂O₃0.20% of Fe₂O₃0.03% of TiO₂13.92 percent of CaO, 2.47 percent of MgO, 1.16 percent of ZnO and 1.86 percent of K₂O, 6.13% of Na₂O, 0.85% ZrO₂1.89 percent of loss on ignition, wherein the zirconium source of the dry particles of the zirconium-containing transparent frit is zirconium oxide, and the particle size of the dry particles of the zirconium-containing transparent frit is 120 meshes of sieve; the purity of the zircon sand is 96 percent, and the particle size of the zircon sand is 120 meshes.

The ceramic dry-grain glaze of comparative example 2 differs from example 1 in that the zirconium source of the zirconium-containing transparent frit dry grains in the ceramic dry-grain glaze of comparative example 1 is zirconia; the mass ratio of the dry particles of the zirconium-containing transparent frit to the zircon sand, the chemical composition of the dry particles of the zirconium-containing transparent frit, the particle size of the dry particles of the zirconium-containing transparent frit, and the purity and particle size of the zircon sand were the same as in example 1.

The preparation method of the ceramic dry-grain glaze of comparative example 2, the ceramic tile and the preparation method thereof are the same as those of example 1.

Performance testing

When the ceramic tile samples prepared in example 1 and comparative example 1 were observed under the illumination condition, as shown in fig. 1-2, and by comparing fig. 1 and fig. 2, it can be seen that the glaze of example 1 containing zirconium in the dry particles of the transparent frit has a better glittering effect of diamond (white dots in the figure) with a significantly more uniform distribution of glittering particles than the glaze of comparative example 1 containing no zirconium in the dry particles of the transparent frit.

Scanning electron microscope analysis is carried out on the samples prepared in the example 1 and the comparative example 1, as shown in fig. 3, the edge angle of the crystal particle of the comparative example 1 which does not contain zirconium in the dry particle of the transparent frit is relatively round, no obvious edge angle is seen, and further, the macroscopic flashing effect is not good; as shown in fig. 4, in example 1 containing zirconium in the dry particles of the transparent frit, the crystal particles are not only more densely distributed, but also the edges and corners of the respective crystal grains are well defined, so that the crystal can exhibit excellent glittering effect macroscopically.

Meanwhile, the antifouling performance of the ceramic tile samples prepared by the embodiments and the comparative examples is tested, and the test method comprises the following steps: preparing 10% acetic acid solution, scrubbing the brick surface for 50 times by adopting the acetic acid solution, and after the brick surface is washed clean, detecting the antifouling performance of the brick surface of the sample obtained in the embodiment and the comparative example by adopting cement ink and an oil pen, wherein: the cement ink comprises: mixing carbon-based black water-based common ink with cement, wherein the addition amount of the ink is 15% of the total weight of the cement ink in percentage by weight. And the glaze quality of each sample was observed, and the results are shown in table 1 below.

Table 1: comparative table of product performance test of each example and comparative example

From the results of the product performance tests of the examples and comparative examples in table 1, it can be seen that: the samples corresponding to the embodiments 1, 2 and 3 have more and uniformly distributed glaze flashing particles, can show the crystal diamond flashing effect under the illumination condition, and have transparent glaze without obvious glaze defects; after acid washing, the antifouling effect is good. Examples 4 and 5 were inferior to examples 1 to 3 in the glittering effect, because the mass ratio of the zirconium-containing transparent frit dry particles to the zircon sand was not (94-97): (3-6), resulting in agglomeration or a smaller number of glittering particles. Comparative example 1, however, has much less sparkle than examples 1-3 because the dry particles of the transparent frit do not contain zirconium and the additional zircon is partially melted in the glaze melt, resulting in a reduced number of zircon crystals and rounded corners. In comparative example 2, zirconium source in the dry particles of the zirconium-containing transparent frit is introduced by zirconium oxide, zirconium silicate crystals are easily separated out from the glaze melt, so that the glaze is slightly opaque, and the transparency and flashing effect of the glaze are further influenced.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are intended to be within the scope of the invention.