Flashing ceramic dry granular glaze, ceramic tile and preparation method thereof

Abstract

The present invention belongs to the field of architectural ceramic technology, and specifically discloses a flashing ceramic dry granule glaze, ceramic tile and preparation method thereof. The raw material composition of the flashing ceramic dry granule includes frit dry granule and flashing material, wherein: the flashing material includes CeO2, and the chemical composition of the frit dry granule contains ZrO2; the particle gradation of the frit dry granule is 15-20wt% for 10-30 mesh, 45-55wt% for 30-60 mesh, and 30-35wt% for 60-120 mesh. During the firing process of the flashing ceramic dry granule glaze of the present invention, CeO2 and zircon crystals will be precipitated, and the two will work together to form reflections on different crystal planes, thereby achieving a crystal flash effect at different angles. At the same time, the frit dry granule is composed of frit particles of different particle sizes, which is not only conducive to further enhancing the flashing effect of the glaze, but also conducive to enhancing the warm and delicate texture of the glaze, and improving the wear resistance and anti-slip performance of the glaze.

Description

Technical Field

[0001] The invention belongs to the technical field of building ceramics, and in particular relates to a flashing ceramic dry granular glaze, a ceramic tile and a preparation method thereof. Background Art

[0002] Since the widespread application of digital inkjet printers, architectural ceramic tile decoration has primarily relied on inkjet patterns to create decorative patterns on the surface of the tiles. These patterns can mimic the surface textures and colors of various natural materials, rivaling even natural stone. While current architectural ceramic decoration technology can faithfully reproduce the patterns, textures, and colors of natural materials, the surface textures of some materials are difficult to replicate. For example, some natural stones contain naturally crystallized shimmering particles, which reflect light in varying directions depending on the angle of view, creating a shimmering effect.

[0003] In order to make the texture closer to that of natural stone, some natural or artificially prepared glittering granular materials are generally added to the ceramic glaze during the production of ceramic tiles, and fired at high temperature together with the ceramic tile glaze in the hope of obtaining this reflective glittering effect.

[0004] Current production methods include the following: First, adding a certain proportion of artificially prepared dry particles, such as pearlescent dry particles and glitter dry particles, to ceramic glazes. However, these artificially prepared dry particles lack a crystalline glitter texture or have a weak glitter effect after firing. Second, adding natural glitter raw materials, such as muscovite, biotite, phlogopite, and lepidolite, to ceramic glazes. However, these dry particles and natural glitter raw materials are all used in glazes, and their properties differ, making their use difficult and often difficult to achieve the desired effect. Third, mixing artificially prepared dry particles with natural glitter raw materials and adding them to ceramic glazes results in limited glitter effects and can also introduce defects such as pinholes and glaze pits. Fourth, directly adding zircon sand and long-lasting luminescent powder to the glaze via wet ball milling to produce a glitter glaze. However, zircon sand is radioactive, and the luminescent powder has poor moisture resistance and is easily hydrolyzed in aqueous solutions, significantly reducing its luminescent effect.

[0005] Therefore, it is urgent to develop a flash ceramic glaze that has a good flash effect without affecting the overall performance and glaze quality of the tile. Summary of the Invention

[0006] The present invention aims to address at least one of the technical problems existing in the aforementioned prior art. To this end, the present invention provides a shimmering ceramic dry granule glaze, a ceramic tile, and a method for preparing the same. The shimmering ceramic dry granule glaze primarily comprises frit dry granules and a shimmering material. By selecting a specific shimmering material, CeO2, adding a certain amount of zirconium oxide to the frit dry granules, and controlling the particle size distribution of the frit dry granules, a shimmering effect with distinct shimmering particle boundaries and a smooth, mellow texture is achieved.

[0007] In order to solve the above technical problems, the first aspect of the present invention provides a flashing ceramic dry particle glaze, wherein the raw materials of the flashing ceramic dry particles include frit dry particles and flashing materials, the flashing materials include CeO2, and the chemical composition of the frit dry particles contains ZrO2; the particle grading of the frit dry particles is 15-20wt% for 10-30 mesh, 45-55wt% for 30-60 mesh, and 30-35wt% for 60-120 mesh.

[0008] Specifically, the flashing ceramic dry granule glaze of the present invention uses zirconium-containing frit dry granules and the flashing material CeO2 as the main raw materials to achieve a good flashing glaze effect. The particle size distribution of the frit dry granules is controlled to enhance the texture of the glaze and further improve its flashing effect. During the glaze firing process, CeO2 precipitates CeO2 crystals with a face-centered cubic structure. The (200) face of the CeO2 crystals is a close-packed atomic plane with low interfacial energy. When CeO2 precipitates from the melt, the face tends to grow. Therefore, the CeO2 crystals that precipitate and grow during the glaze firing process have the (200) face as the main exposed face. Under certain crystal growth conditions (such as temperature field), the CeO2 crystals will precipitate directionally from the glaze melt and preferentially orient on the glaze surface with the (200) face parallel to the glaze surface, forming a macroscopically ordered structure. At the same time, because the (200) face is a close-packed atomic plane, it has good reflective properties for visible light, thereby giving the glaze surface a special mirror-like reflective effect, namely a flashing effect.

[0009] At the same time, the frit dry particles of the present invention are selected to contain zirconium frit dry particles, that is, a certain amount of zirconium oxide is added during preparation. After the zirconium oxide is sintered, zircon crystals will form on the glaze surface. The zircon crystals and CeO2 crystals work together to form reflections on different crystal surfaces, thereby achieving a flashing effect at different angles, that is, a crystal flash effect.

[0010] In addition, the frit dry particles of the present invention are composed of frit dry particles of different particle sizes. On the one hand, the frit particles of different particle sizes will form more reflective surfaces after firing, so as to further enhance the glittering effect of the glaze surface. On the other hand, the frit dry particles of different particle sizes have certain differences in their sintering temperatures, and the particle texture of the glaze surface will also be different. If there are too many large particles, the glaze surface will be rough and slightly uneven after firing; if there are too many small particles, the dry particles will be completely melted flat after firing, and the hand feel will be too smooth and the texture will be slightly poor. The frit dry particles with a specific gradation are more conducive to the warm and delicate texture of the glaze surface, and are conducive to improving the wear resistance and anti-slip properties of the glaze surface.

[0011] As a further improvement of the above scheme, the chemical composition of the frit dry particles includes, by weight percentage: 50-65% SiO2, 5-10% Al2O3, 8-12% CaO, 1-3% MgO, 2-5% K2O, 1-3% Na2O, 2-7% B2O3, 8-12% ZnO, and 3-5% ZrO2.

[0012] As a further improvement of the above solution, the mass ratio of the frit dry particles to the flash material is (12-24):1.

[0013] Specifically, a certain content of CeO2 is more conducive to obtaining the best sparkling effect. When the CeO2 content is too low, the number of CeO2 crystals with suitable morphology obtained after firing is too small; only when there is a sufficient amount of CeO2 can CeO2 crystals form a continuous spread on the glaze surface; but when the CeO2 content is too high, the viscosity of the sparkling ceramic dry particles increases at the glaze firing temperature, the orientation of the CeO2 crystals is difficult, and the sparkling effect will also decrease accordingly.

[0014] As a further improvement of the above solution, the raw material composition of the flashing ceramic dry particles also includes a luminescent material, the luminescent material is a silicate-based long-afterglow luminescent powder, and the mass ratio of the flashing material to the luminescent material is (1-4):1.

[0015] Specifically, long-lasting luminescent materials can be categorized by material type: sulfide, aluminate, and silicate. Sulfide luminescent materials have a short afterglow time and poor high-temperature resistance, making them difficult to mix with glazes and dry granules. Aluminate luminescent materials have a single color and poor thermal stability, losing their luminescent properties above 900°C and easily deliquescing in water. Silicate luminescent materials have excellent chemical stability and can be used to prepare medium-temperature and even high-temperature glazes. Furthermore, silicate luminescent materials exhibit good compatibility with the flashing ceramic dry granule glaze of the present invention. Furthermore, the high silicon content in the flashing ceramic dry granule glaze inhibits the melting of the silicate luminescent material, thus not affecting its luminescent properties.

[0016] Preferably, the silicate-based long-lasting luminescent powder is selected from Sr2MgSi2O7 co-doped with Eu and Dy or Sr2CaSi2O7 co-doped with Eu and Dy.

[0017] The second aspect of the present invention provides a method for preparing a flashing ceramic dry granular glaze, which is used to prepare the flashing ceramic dry granular glaze according to the first aspect of the present invention, comprising the following steps:

[0018] (1) Mixing the raw materials for preparing frit dry particles, melting them, pouring them into water and quenching them to obtain frit particles;

[0019] (2) crushing the frit particles and performing classification treatment to obtain frit dry particles;

[0020] (3) Dry-mixing the flash material, the luminescent material and the frit dry particles to obtain the flash ceramic dry particle glaze.

[0021] Specifically, traditional glitter ceramic tiles are often manufactured by mixing glitter powder, luminescent powder, and glaze through wet ball milling before glazing. However, luminescent powder has poor moisture resistance and easily hydrolyzes in aqueous solutions, significantly reducing its luminous effect. The present invention uses a dry mixing method, which greatly enhances the luminous effect of the glitter glaze layer, resulting in a good glitter effect both during the day and at night.

[0022] As a further improvement of the above solution, in step (1), the melting temperature is 1450-1550° C., and the melting time is 8-12 hours.

[0023] As a further improvement of the above scheme, in step (2), the classification treatment refers to classifying the crushed frit particles according to particle size so that they meet the particle grading of 15-20wt% for 10-30 mesh, 45-55wt% for 30-60 mesh, and 30-35wt% for 60-120 mesh.

[0024] The third aspect of the present invention provides a flashing ceramic tile, which comprises, from bottom to top, a body, a surface glaze layer, a pattern layer, a transparent glaze layer, a glue layer and a flashing glaze layer, wherein the flashing glaze layer is formed by firing the flashing ceramic dry granular glaze described in the first aspect of the present invention.

[0025] The fourth aspect of the present invention provides a method for preparing a flashing ceramic tile, which is used to prepare the flashing ceramic tile according to the third aspect of the present invention, comprising the following steps:

[0026] (1) applying a top glaze, inkjet printing a pattern, applying a transparent glaze, spraying glue, and applying a flashing ceramic dry granular glaze on the blank in sequence, and then absorbing excess glue and flashing ceramic dry granular glaze to form a top glaze layer, a pattern layer, a transparent glaze layer, a glue layer, and a flashing glaze layer to obtain a semi-finished product;

[0027] (2) The semi-finished product is put into a kiln for firing and polishing to obtain the flashing ceramic tile.

[0028] Specifically, the present invention sprays glue through a multifunctional inkjet machine, and applies the glittering ceramic dry granular glaze on the glue according to the pattern texture, and then uses an exhaust fan to remove the excess glue and glittering ceramic dry granular glaze to form a concave and convex texture, which can further enhance the glittering effect of the glaze.

[0029] As a further improvement of the above solution, the thickness of the flash glaze layer is 1-2 mm.

[0030] Specifically, the thickness of the flashing glaze layer has a great influence on the shape and quantity of the precipitated crystals. Only when the thickness of the flashing glaze layer is appropriate can CeO2 and zirconium oxide crystals of appropriate quantity and shape be obtained through firing, thereby producing a good flashing effect; if the flashing glaze layer is too thin, there is insufficient space for the crystals to grow and develop; if the glaze layer is too thick, the crystals grow too large, which is not conducive to obtaining a better flashing glaze surface.

[0031] As a further improvement of the above solution, the firing temperature is 1200-1250° C., and the firing period is 50-70 minutes.

[0032] Preferably, the glue is digital glue used for ordinary inkjet printing, and the viscosity of the digital glue is 15-20mPas.

[0033] The present invention has no special requirements on the body, surface glaze and transparent glaze, and the body, surface glaze and transparent glaze of ordinary polished ceramic tiles can be used.

[0034] Compared with the prior art, the above technical solution of the present invention has at least the following technical effects or advantages:

[0035] (1) The present invention's shimmering ceramic dry granule glaze uses zirconium-containing frit dry granules and the shimmering material CeO2 as its main raw materials. During the firing process, CeO2 and zircon crystals are precipitated. The two interact to form reflections on different crystal planes, thereby achieving a shimmering effect at different angles. Furthermore, the frit dry granules of the present invention are composed of frit particles of different particle sizes, which not only further enhances the shimmering effect of the glaze, but also helps to improve the glaze's warm and delicate texture, and enhances the glaze's wear resistance and anti-slip properties.

[0036] (2) The flashing ceramic dry granular glaze of the present invention is prepared by a dry mixing process. Compared with the traditional wet ball milling process, it can prevent the hydrolysis of the luminescent material, thereby improving the luminescent effect of the glaze, making it have an obvious flashing effect both during the day and at night.

[0037] (3) When preparing the flashing ceramic tiles of the present invention, the flashing ceramic dry granular glaze is applied on the glue according to the pattern texture, and then the excess glue and flashing ceramic dry granular glaze are removed to form a concave and convex texture on the glaze surface, thereby further enhancing the flashing effect of the glaze surface. DETAILED DESCRIPTION

[0038] The present invention is described in detail below with reference to the examples to facilitate understanding of the present invention by those skilled in the art. It is necessary to point out that the examples are only used to further illustrate the present invention and are not to be construed as limiting the scope of protection of the present invention. Non-essential improvements and adjustments made to the present invention by those skilled in the art based on the above-mentioned invention should still fall within the scope of protection of the present invention. At the same time, the raw materials mentioned below that are not described in detail are all commercially available products; the process steps or preparation methods that are not mentioned in detail are all process steps or preparation methods known to those skilled in the art.

[0039] The green body, top glaze and transparent glaze used in the examples and comparative examples of the present invention are all the green body, top glaze and transparent glaze of ordinary polished ceramic tiles.

[0040] Example 1

[0041] The invention discloses a flashing ceramic dry granule glaze, whose raw materials include frit dry granules, CeO2 and luminescent powder (Sr2MgSi2O7 co-doped with Eu and Dy), and the mass ratio of the three is 94:4:2.

[0042] The chemical composition of the frit dry particles, by weight, includes: 58.7% SiO2, 7.8% Al2O3, 10.5% CaO, 1.6% MgO, 3.8% K2O, 1.5% Na2O, 3.7% B2O3, 9.4% ZnO, and 3% ZrO2. The particle size distribution of the frit dry particles is 18.3% by weight for 10-30 mesh, 50% by weight for 30-60 mesh, and 31.7% by weight for 60-120 mesh.

[0043] A method for preparing a flashing ceramic dry granular glaze comprises the following steps:

[0044] (1) Mix the raw materials for preparing frit dry particles, melt them at 1500°C for 10 hours, and then pour them into water for quenching to obtain frit particles;

[0045] (2) crushing the frit particles obtained in step (1) and performing classification treatment according to the particle grading of this embodiment to obtain frit dry particles;

[0046] (3) CeO2, the luminescent material and the frit dry particles obtained in step (2) are mixed according to a mass ratio to obtain the flashing ceramic dry particle glaze of this embodiment.

[0047] A method for preparing a flashing ceramic tile comprises the following steps:

[0048] (1) Using a multifunctional inkjet machine, a top glaze is applied on the blank, a pattern is printed by inkjet, a transparent glaze is applied, glue is sprayed, and the flashing ceramic dry granular glaze of this embodiment is applied, and then excess glue and flashing ceramic dry granular glaze are sucked away to form a top glaze layer, a pattern layer, a transparent glaze layer, a glue layer, and a flashing glaze layer to obtain a semi-finished product; wherein the thickness of the flashing glaze layer is 1 mm;

[0049] (2) The semi-finished product obtained in step (1) is placed in a kiln and fired at 1200° C. for 50 minutes. After polishing, the flashing ceramic tile of this embodiment is obtained.

[0050] Example 2

[0051] The invention discloses a flashing ceramic dry granule glaze, whose raw materials include frit dry granules, CeO2 and luminescent powder (Sr2CaSi2O7 co-doped with Eu and Dy), and the mass ratio of the three is 92:5:3.

[0052] The chemical composition of the frit dry particles, by weight, includes: 57.7% SiO2, 7.8% Al2O3, 10.5% CaO, 1.6% MgO, 3.8% K2O, 1.5% Na2O, 3.7% B2O3, 9.4% ZnO, and 4% ZrO2. The particle size distribution of the frit dry particles is 15.5% by weight for 10-30 mesh, 53% by weight for 30-60 mesh, and 31.5% by weight for 60-120 mesh.

[0053] A method for preparing a flashing ceramic dry granular glaze comprises the following steps:

[0054] (1) Mix the raw materials for preparing frit dry particles, melt them at 1520° C. for 12 hours, and then pour them into water for quenching to obtain frit particles;

[0055] (2) crushing the frit particles obtained in step (1) and performing classification treatment according to the particle grading of this embodiment to obtain frit dry particles;

[0056] (3) CeO2, the luminescent material and the frit dry particles obtained in step (2) are mixed according to a mass ratio to obtain the flashing ceramic dry particle glaze of this embodiment.

[0057] A method for preparing a flashing ceramic tile comprises the following steps:

[0058] (1) Using a multifunctional inkjet machine, a top glaze is applied on the blank, a pattern is printed by inkjet, a transparent glaze is applied, glue is sprayed, and the flashing ceramic dry granular glaze of this embodiment is applied, and then excess glue and flashing ceramic dry granular glaze are sucked away to form a top glaze layer, a pattern layer, a transparent glaze layer, a glue layer, and a flashing glaze layer to obtain a semi-finished product; wherein the thickness of the flashing glaze layer is 1.5 mm;

[0059] (2) The semi-finished product obtained in step (1) is put into a kiln and fired at 1230° C. for 60 minutes. After polishing, the flashing ceramic tile of this embodiment is obtained.

[0060] Example 3

[0061] The invention discloses a flashing ceramic dry granule glaze, whose raw materials include frit dry granules, CeO2 and luminescent powder (Sr2MgSi2O7 co-doped with Eu and Dy), and the mass ratio of the three is 89:7:4.

[0062] The chemical composition of the frit dry particles, by weight, includes: 56.7% SiO2, 7.8% Al2O3, 10.5% CaO, 1.6% MgO, 3.8% K2O, 1.5% Na2O, 3.7% B2O3, 9.4% ZnO, and 5% ZrO2. The particle size distribution of the frit dry particles is 20% by weight for 10-30 mesh, 47.5% by weight for 30-60 mesh, and 32.5% by weight for 60-120 mesh.

[0063] A method for preparing a flashing ceramic dry granular glaze comprises the following steps:

[0064] (1) Mix the raw materials for preparing frit dry particles, melt them at 1550° C. for 8 hours, and then pour them into water for quenching to obtain frit particles;

[0065] (2) crushing the frit particles obtained in step (1) and performing classification treatment according to the particle grading of this embodiment to obtain frit dry particles;

[0066] (3) CeO2, the luminescent material and the frit dry particles obtained in step (2) are mixed according to a mass ratio to obtain the flashing ceramic dry particle glaze of this embodiment.

[0067] A method for preparing a flashing ceramic tile comprises the following steps:

[0068] (1) Using a multifunctional inkjet machine, a top glaze is applied on the blank, a pattern is printed by inkjet, a transparent glaze is applied, glue is sprayed, and the flashing ceramic dry granular glaze of this embodiment is applied, and then excess glue and flashing ceramic dry granular glaze are sucked away to form a top glaze layer, a pattern layer, a transparent glaze layer, a glue layer, and a flashing glaze layer to obtain a semi-finished product; wherein the thickness of the flashing glaze layer is 2 mm;

[0069] (2) The semi-finished product obtained in step (1) is placed in a kiln and fired at 1250° C. for 55 minutes. After polishing, the flashing ceramic tile of this embodiment is obtained.

[0070] Example 4

[0071] The only difference between Example 4 and Example 1 is that the mass ratio of the frit dry particles, CeO2 and luminescent powder (Sr2MgSi2O7 co-doped with Eu and Dy) in the flashing ceramic dry particle glaze of Example 4 is 96:2:2, and the types and addition amounts of other raw materials and the preparation methods of the flashing ceramic dry particle glaze and flashing ceramic tiles are the same as those in Example 1.

[0072] Example 5

[0073] The only difference between Example 5 and Example 1 is that when preparing the flashing ceramic tiles of Example 5, the thickness of the flashing glaze layer is 0.5 mm, the flashing ceramic dry granular glaze is prepared by wet ball milling, and the raw material composition of the flashing ceramic dry granular glaze and the preparation method of the flashing ceramic dry granular glaze are the same as those in Example 1.

[0074] Comparative Example 1

[0075] The only difference between Comparative Example 1 and Example 1 is that the particle gradation of the frit dry material in the flashing ceramic dry granular glaze of Comparative Example 1 is 40wt% of 10-30 mesh, 40wt% of 30-60 mesh, and 20wt% of 60-120 mesh. The types and addition amounts of other raw materials and the preparation methods of flashing ceramic dry granular glaze and flashing ceramic tiles are the same as those in Example 1.

[0076] Comparative Example 2

[0077] The only difference between Comparative Example 2 and Example 1 is that the flashing material in the flashing ceramic dry granular glaze of Comparative Example 2 is muscovite, and the types and addition amounts of other raw materials and the preparation methods of the flashing ceramic dry granular glaze and flashing ceramic tiles are the same as those in Example 1.

[0078] Comparative Example 3

[0079] Comparative Example 3 differs from Example 1 only in that the chemical composition of the fritted dry particles in the flashing ceramic dry granule glaze of Comparative Example 3 does not contain zirconium oxide. Instead, the chemical composition of the fritted dry particles, by weight, comprises: 61.7% SiO2, 7.8% Al2O3, 10.5% CaO, 1.6% MgO, 3.8% K2O, 1.5% Na2O, 3.7% B2O3, and 9.4% ZnO. The types and amounts of other raw materials, as well as the preparation methods of the flashing ceramic dry granule glaze and flashing ceramic tile, are the same as those in Example 1.

[0080] Comparative Example 4

[0081] A method for preparing a flashing ceramic dry granular glaze comprises the following steps:

[0082] (1) Mix the raw materials for preparing frit dry particles, melt them at 1500°C for 10 hours, and then pour them into water for quenching to obtain frit particles;

[0083] (2) crushing the frit particles obtained in step (1) and performing classification treatment according to the particle grading of this embodiment to obtain frit dry particles;

[0084] (3) CeO2, the luminescent material and the frit dry particles obtained in step (2) were mixed in a mass ratio and added into water (the mass ratio of the material to water was 100:35) for wet ball milling to obtain the flashing ceramic glaze slurry of this comparative example.

[0085] A method for preparing a flashing ceramic tile comprises the following steps:

[0086] (1) using a multifunctional inkjet machine to sequentially apply a top glaze, inkjet print a pattern, apply a transparent glaze, and apply the flashing ceramic glaze slurry of this embodiment on the green body to form a top glaze layer, a pattern layer, a transparent glaze layer, a glue layer, and a flashing glaze layer to obtain a semi-finished product;

[0087] (2) The semi-finished product obtained in step (1) is placed in a kiln and fired at 1200° C. for 50 minutes. After polishing, the flashing ceramic tile of this embodiment is obtained.

[0088] The only difference between Comparative Example 4 and Example 1 is that the preparation method of the flashing ceramic dry granular glaze and the flashing ceramic tiles in Comparative Example 4 adopts wet ball milling, and the raw material composition of the flashing ceramic dry granular glaze is the same as that of Example 1.

[0089] Performance Testing

[0090] The glittering ceramic tile samples prepared in Examples 1-5 and Comparative Examples 1-4 were tested for wear resistance, static friction coefficient, and decay time. The glaze surface protrusion height was measured, and the glaze surface glitter was observed. The wear resistance and static friction coefficient of the samples were tested according to GB / T 4100-2015 Ceramic Tiles, and the luminescence decay time was tested according to GB / T 24981.2-2020 Test Method for Rare Earth Long-Persistence Phosphors. The test results are shown in Table 1.

[0091] Table 1: Performance comparison of samples of Examples 1-5 and Comparative Examples 1-4

[0092]

[0093] It can be seen from Table 1 that the flashing ceramic tile samples prepared in Examples 1-3 have clear boundaries of the flashing grains on the glaze, a warm and delicate glaze texture, and an obvious crystal diamond flash effect. They also have good wear resistance and anti-slip properties, as well as a long-lasting luminous effect.

[0094] In Examples 4 and 5, the glitter effect is not as good as that in Example 1 because the CeO2 content is too low and the glitter glaze layer is too thin, resulting in insufficient number of glitter grains.

[0095] In Comparative Example 1, the proportion of large particles in the dry particle grading increased, resulting in a rough and uneven glaze surface and a decreased sparkling effect.

[0096] Comparative Examples 2-3 use other types of glitter materials or the chemical composition of the frit dry particles does not contain zirconium oxide, so the glitter effect of the glaze is not as good as that of Example 1.

[0097] In Comparative Example 4, since the glittering ceramic dry granular glaze is prepared by wet ball milling, not only does the glaze surface have no concave-convex texture, but the glittering effect is also significantly reduced compared with Example 1. At the same time, the wear resistance, anti-slip and luminous properties are all inferior to Example 1.

[0098] For those skilled in the art to which the present invention belongs, a number of simple deductions or substitutions can be made without departing from the concept of the present invention, without having to resort to creative work. Therefore, based on the disclosure of the present invention, simple improvements made by those skilled in the art to the present invention should be within the scope of protection of the present invention. The above embodiments are preferred embodiments of the present invention, and all processes similar to the present invention and equivalent changes made should fall within the scope of protection of the present invention.

Claims

1. A flash ceramic dry granular glaze, characterized in that: The raw materials of the flash ceramic dry particles include frit dry particles, flash material and luminescent material, the flash material includes CeO2, and the chemical composition of the frit dry particles contains ZrO2; the mass ratio of the frit dry particles to the flash material is (12-24):1; The particle size distribution of the frit dry particles is 15-20 wt% for 10-30 mesh, 45-55 wt% for 30-60 mesh, and 30-35 wt% for 60-120 mesh; The chemical composition of the frit dry particles comprises, by weight percentage: 50-65% SiO2, 5-10% Al2O3, 8-12% CaO, 1-3% MgO, 2-5% K2O, 1-3% Na2O, 2-7% B2O3, 8-12% ZnO, and 3-5% ZrO2; The luminescent material is a silicate-based long-lasting luminescent powder, and the mass ratio of the flash material to the luminescent material is (1-4):

1.

2. The flash ceramic dry granular glaze according to claim 1, characterized in that: The silicate-based long-lasting luminescent powder is selected from Sr2MgSi2O7 co-doped with Eu and Dy or Sr2CaSi2O7 co-doped with Eu and Dy.

3. A method for preparing a flashing ceramic dry granular glaze, characterized in that: The preparation method is used to prepare the flashing ceramic dry granular glaze according to claim 1 or 2, comprising the following steps: (1) Mixing the raw materials for preparing frit dry particles, melting them, pouring them into water and quenching them to obtain frit particles; (2) crushing the frit particles and performing classification treatment to obtain frit dry particles; (3) Dry-mixing the flash material, the luminescent material and the frit dry particles to obtain the flash ceramic dry particle glaze.

4. A flashing ceramic tile, characterized in that: From bottom to top, it comprises a body, a surface glaze layer, a pattern layer, a transparent glaze layer, a glue layer and a flash glaze layer. The flash glaze layer is formed by firing the flash ceramic dry granular glaze according to any one of claims 1 or 2.

5. A method for preparing a flashing ceramic tile, characterized in that: The preparation method is used to prepare the flashing ceramic tile according to claim 4, comprising the following steps: (1) applying a top glaze, inkjet printing a pattern, applying a transparent glaze, spraying glue, and applying a flashing ceramic dry granular glaze on the body in sequence, and then absorbing excess glue and flashing ceramic dry granular glaze to form a top glaze layer, a pattern layer, a transparent glaze layer, a glue layer, and a flashing glaze layer to obtain a semi-finished product; the flashing glaze layer has a thickness of 1-2 mm; (2) The semi-finished product is put into a kiln for firing and polishing to obtain the flashing ceramic tile.

6. The method for preparing the flashing ceramic tile according to claim 5, characterized in that: The firing temperature is 1200-1250° C., and the firing period is 50-70 minutes.

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