High-wear-resistant pearl-faced ceramic tile and preparation method thereof

Abstract

The application provides a high-wear-resistant pearl surface ceramic tile and a preparation method thereof, and relates to the technical field of ceramic tiles. The high-wear-resistant pearl surface ceramic tile comprises a surface glaze layer and a polishing glaze layer attached on the surface of a body in sequence; the raw materials of the surface glaze layer comprise, in parts by weight, 30-40 parts of kaolin, 15-30 parts of lithium feldspar powder, 10-20 parts of flint, 10-20 parts of dolomite, 5-10 parts of zirconium silicate, 3-8 parts of strontium carbonate, 3-6 parts of zinc oxide and 2-6 parts of steel jade; the raw materials of the polishing glaze layer comprise polishing glaze and stone, and the stone comprises oolitic particles and rutile. The preparation method of the ceramic tile comprises the following steps: applying the surface glaze slip and the mixed glaze slip on the surface of the body in sequence, and firing. The pearl surface ceramic tile prepared by the application has a pearl surface decoration effect, has a flashing effect under the irradiation of light, and has the advantages of wear resistance, pressure resistance, acid and alkali resistance, anti-static, anti-skid and the like.

Description

Technical Field

[0001] This application relates to the field of ceramic tile technology, and in particular to a high wear-resistant pearl-finish ceramic tile and its preparation method. Background Technology

[0002] With the advancement of modern technology and the continuous development of mainstream social values, consumers have increasingly higher decorative requirements for ceramic building materials. This necessitates that ceramic manufacturers accelerate the pace of new product research and development, continuously launching new products to meet diverse consumer needs. Decorative ceramics have undergone a series of developments and changes, from micro-ceramics and wear-resistant ceramics to polished ceramics and polished microcrystalline ceramics. Due to the diversification of research and development technologies, ceramic tiles can also feature numerous patterns and present different glaze effects, such as glossy, soft-gloss, and frosted textures.

[0003] Therefore, the ceramic industry has always aimed to develop ceramic tiles with different decorative effects and mechanical properties by selecting different raw materials. Summary of the Invention

[0004] The purpose of this application is to provide a high wear-resistant pearl-finish ceramic tile and its preparation method. The prepared pearl-finish ceramic tile has a shimmering decorative effect on its surface. Under light irradiation, it has a crystal-clear luster and also has the advantages of wear resistance, pressure resistance, acid and alkali resistance, antistatic properties, and slip resistance.

[0005] To achieve the above objectives, the technical solution of this application is as follows:

[0006] This application provides a high wear-resistant pearl-finish ceramic tile, comprising a surface glaze layer and a polished glaze layer sequentially attached to the surface of the body;

[0007] The raw materials for the surface glaze layer, by weight, include: 30-40 parts kaolin, 15-30 parts lithium feldspar powder, 10-20 parts flint, 10-20 parts dolomite, 5-10 parts zirconium silicate, 3-8 parts strontium carbonate, 3-6 parts zinc oxide, and 2-6 parts corundum.

[0008] The raw materials for the polished glaze layer include polishing glaze and stone materials, wherein the stone materials include oolitic particles and rutile.

[0009] Preferably, in the stone, the mass ratio of the oolitic particles to the rutile is (60-80):(6-8);

[0010] The oolitic particles have a fineness of 200-300 mesh, and the rutile particles have a fineness of 300-400 mesh.

[0011] Preferably, the polishing glaze, by weight, comprises: 20-30 parts nepheline, 20-30 parts glass powder, 10-20 parts wollastonite, 10-20 parts washed clay, 10-20 parts albite, 4-8 parts potassium carbonate, 3-6 parts calcite, and 2-6 parts barium sulfate.

[0012] Preferably, the method for preparing the polished glaze layer includes: preparing the polished glaze material into a polished glaze slurry, mixing it with the stone material, and then applying the slurry;

[0013] The mass ratio of the polishing glaze to the stone is (80-90):(10-20).

[0014] More preferably, the polishing glaze paste comprises, by weight, 100 parts of the polishing glaze material, 1-3 parts of methylcellulose, 1-3 parts of sodium tripolyphosphate, and 40-70 parts of water.

[0015] Preferably, an inkjet pattern layer is provided between the surface glaze layer and the polished glaze layer.

[0016] This application also provides a method for preparing the above-mentioned high wear-resistant pearl-finish ceramic tiles, including:

[0017] The raw materials for the surface glaze layer are ball-milled to obtain a surface glaze slurry;

[0018] The polishing glaze is made into a polishing glaze slurry, and then mixed with the stone to obtain a mixed glaze slurry;

[0019] The surface glaze slurry and the mixed glaze slurry are applied sequentially to the surface of the blank, and then fired to obtain the high wear-resistant pearl-faced ceramic tile.

[0020] Preferably, the preparation method satisfies at least one of the following conditions:

[0021] a. The fineness of the surface glaze slurry is 250-300 mesh;

[0022] b. The specific gravity of the surface glaze slurry is 1.9-1.95;

[0023] c. The thickness of the surface glaze slurry is 1.5mm-3mm;

[0024] d. The specific gravity of the polishing glaze slurry is 1.8-2.0;

[0025] e. The thickness of the mixed glaze slurry is 1.5mm-3mm;

[0026] f. After the surface glaze slurry is applied, the method further includes: after inkjet printing on the surface glaze slurry, the mixed glaze slurry is applied again;

[0027] g. Before firing, the process further includes: placing the blank to be fired in a drying kiln at 200℃-300℃ for drying treatment;

[0028] h. After firing, the process also includes polishing and edge grinding.

[0029] More preferably, after the inkjet printing is completed, when applying the mixed glaze, the following steps are included:

[0030] The mixed glaze is screen-printed in the blank areas of the inkjet-printed pattern, and the polishing glaze is screen-printed in the texture areas of the inkjet-printed pattern.

[0031] Preferably, the firing temperature is 1165℃-1180℃ and the firing time is 60min-70min.

[0032] The beneficial effects of this application are:

[0033] This application presents high-wear-resistant pearl-finish ceramic tiles, which feature rich, shimmering ceramic decorations, low water absorption, and excellent material properties, overcoming the shortcomings of ordinary ceramic glazes, such as poor wear resistance and chemical corrosion resistance. Compared to traditional ceramic products, high-wear-resistant pearl-finish ceramics produce a pearl-like shimmering effect after high-temperature firing. The addition of rutile enhances the wear and pressure resistance of the glaze. Furthermore, the combination of the surface glaze and polished glaze layers gives the ceramic tiles advantages such as acid and alkali resistance, anti-static properties, slip resistance, no radiation or pollution, and low water absorption. In addition, after artistic styling and polishing, the pearl-finish ceramic tiles, especially under light, exhibit a shimmering effect on the polished glaze layer containing pearl particles, resulting in a crystal-clear luster and a strong three-dimensional effect.

[0034] The preparation method of the high wear-resistant pearl-faced ceramic tile of this application is simple and easy to carry out large-scale production. Attached Figure Description

[0035] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation on the scope of this application.

[0036] Figure 1 A photograph of the high wear-resistant pearl-faced ceramic tile prepared in Example 1;

[0037] Figure 2 A photograph of the high wear-resistant pearl-faced ceramic tile prepared in Example 2;

[0038] Figure 3 This is a photograph of the ceramic tile prepared in Comparative Example 3. Detailed Implementation

[0039] As used in this article:

[0040] "Prepared from" is synonymous with "comprising". The terms "comprising", "including", "having", "containing", or any other variations thereof as used herein are intended to cover non-exclusive inclusion. For example, a composition, step, method, article, or apparatus that includes the listed elements is not necessarily limited to those elements, but may include other elements not expressly listed or elements inherent to such a composition, step, method, article, or apparatus. The conjunction "composed of" excludes any unnamed elements, steps, or components.

[0041] When a quantity, concentration, or other value or parameter is expressed as a range, a preferred range, or a range defined by a series of upper and lower preferred values, this should be understood as specifically disclosing all ranges formed by any pair of any upper or preferred value with any lower or preferred value, regardless of whether the range is disclosed individually. For example, when the range “1–5” is disclosed, the described range should be interpreted as including ranges “1–4”, “1–3”, “1–2”, “1–2 and 4–5”, “1–3 and 5”, etc. When numerical ranges are described herein, unless otherwise stated, the range is intended to include its endpoints and all integers and fractions within that range.

[0042] In these embodiments, unless otherwise specified, the portions and percentages are all by weight.

[0043] "Parts by mass" refers to the basic unit of measurement that expresses the mass ratio of multiple components. One part can represent any unit mass, such as 1g or 2.689g. If we say that component A has "a" parts by mass and component B has "b" parts by mass, it means the ratio of the mass of component A to the mass of component B is a:b. Alternatively, it can mean that the mass of component A is aK and the mass of component B is bK (where K is any number representing a multiplier). It is important to understand that, unlike parts by mass, the sum of the mass parts of all components is not limited to 100 parts.

[0044] "And / or" is used to indicate that one or both of the described situations may occur, for example, A and / or B includes (A and B) and (A or B).

[0045] This application provides a high wear-resistant pearl-finish ceramic tile, comprising a surface glaze layer and a polished glaze layer sequentially attached to the surface of the body.

[0046] The raw materials for the glaze layer, by weight, include: 30-40 parts kaolin (e.g., 30, 32, 35, 38, 40, or any value between 30 and 40); 15-30 parts lithium feldspar powder (e.g., 15, 18, 20, 22, 25, 28, 30, or any value between 15 and 30); 10-20 parts flint (e.g., 10, 12, 15, 18, 20, or any value between 10 and 20); and 10-20 parts dolomite (e.g., 10, 12, 15, 18, 20, or any value between 10 and 20). 15, 18, 20 parts, or any value between 10 and 20 parts; 5 to 10 parts of zirconium silicate, for example, 5, 6, 7, 8, 9, 10 parts, or any value between 5 and 10 parts; 3 to 8 parts of strontium carbonate, for example, 3, 4, 5, 6, 7, 8 parts, or any value between 3 and 8 parts; 3 to 6 parts of zinc oxide, for example, 3, 4, 5, 6 parts, or any value between 3 and 6 parts; 2 to 6 parts of corundum, for example, 2, 3, 4, 5, 6 parts, or any value between 2 and 6 parts.

[0047] The raw materials for the polished glaze layer include polishing glaze and stone materials, among which the stone materials include oolitic particles and rutile.

[0048] It is understood that the oolitic particles used in this application are not mined raw stones, but processed and refined oolitic particles, the main component of which is calcium carbonate. Oolitic particles have a long history of use in my country and are also known as "oolitic stone" or "fish pebbles." They belong to the monoclinic crystal system, have a layered structure, and are small, round or oval growths resembling fish eggs, with a particle diameter of 0.25mm-2mm, generally 0.5mm-1mm. The formation principle of oolitic particles is that under the action of waves and tides, water is agitated, and detritus particles such as biological debris and spherules are in a suspended state. Carbon dioxide in the water escapes, and supersaturated calcium carbonate precipitates around the detritus particles, forming a shell. With repeated agitation, oolitic particles with concentric rings are formed. When the mass exceeds the wave mass, they accumulate on the seabed and are cemented by crystalline calcite, forming crystalline oolitic limestone. Thin oolitic flakes are elastic and possess high electrical insulation, heat resistance, and good mechanical properties.

[0049] Rutile is mainly composed of TiO2 and has a density of 2.29 g / cm³. 3 It has a hardness of 6-6.5. Adding rutile to the polished glaze improves the wear resistance and pressure resistance of the glaze layer.

[0050] In a preferred embodiment of this application, the mass ratio of oolitic particles to rutile in the stone is (60-80):(6-8), for example, it can be any value between 60:6, 62:6, 65:7, 68:7, 70:7.5, 75:8, 80:6 or (60-80):(6-8).

[0051] In a preferred embodiment of this application, the oolitic particles have a fineness of 200-300 mesh, and the rutile particles have a fineness of 300-400 mesh.

[0052] The purpose of mixing oolitic particles and rutile to form stone powder is to make it easier for the oolitic particles to be incorporated into the polishing glaze after high-temperature sintering, thereby improving the wear resistance and hardness of the glaze surface.

[0053] In a preferred embodiment of this application, the polishing glaze, by weight, comprises: 20-30 parts of nepheline (e.g., 20, 22, 25, 28, 30, or any value between 20 and 30 parts), 20-30 parts of glass powder (e.g., 20, 22, 25, 28, 30, or any value between 20 and 30 parts), 10-20 parts of wollastonite (e.g., 10, 12, 15, 18, 20, or any value between 10 and 20 parts), and 10-20 parts of washed clay (e.g., 10 or 12 parts). 15 parts, 18 parts, 20 parts, or any value between 10 and 20 parts; 10 to 20 parts of albite, for example, 10, 12, 15, 18, 20 parts, or any value between 10 and 20 parts; 4 to 8 parts of potassium carbonate, for example, 4, 5, 6, 7, 8 parts, or any value between 4 and 8 parts; 3 to 6 parts of calcite, for example, 3, 4, 5, 6 parts, or any value between 3 and 6 parts; 2 to 6 parts of barium sulfate, for example, 2, 3, 4, 5, 6 parts, or any value between 2 and 6 parts.

[0054] In a preferred embodiment of this application, the method for preparing the polished glaze layer includes: preparing the polished glaze material into a polished glaze slurry, mixing it with the stone material, and then applying it.

[0055] The mass ratio of the polishing glaze slurry made from polishing glaze to the stone is (80-90):(10-20), for example, it can be any value between 80:10, 85; 10, 90; 10, 82; 15, 86:18, 88:20, 90:20 or (80-90):(10-20).

[0056] More preferably, the polishing glaze slurry, by weight, comprises: 100 parts polishing glaze material, 1-3 parts methylcellulose (e.g., 1 part, 1.5 parts, 2 parts, 2.5 parts, 3 parts, or any value between 1 and 3 parts), 1-3 parts sodium tripolyphosphate (e.g., 1 part, 1.5 parts, 2 parts, 2.5 parts, 3 parts, or any value between 1 and 3 parts), and 40-70 parts water (e.g., 40 parts, 45 parts, 50 parts, 55 parts, 60 parts, 65 parts, 70 parts, or any value between 40 and 70 parts).

[0057] In a preferred embodiment of this application, an inkjet pattern layer is further provided between the top glaze layer and the polished glaze layer.

[0058] This application also provides a method for preparing the above-mentioned high wear-resistant pearl-finish ceramic tiles, including:

[0059] S1. The raw materials for the surface glaze are ball-milled to obtain the surface glaze slurry;

[0060] S2. Prepare the polishing glaze material into a polishing glaze slurry, and then mix it with the stone material to obtain a mixed glaze slurry;

[0061] S3. Apply the surface glaze slurry and the mixed glaze slurry sequentially to the surface of the blank, and fire to obtain the high wear-resistant pearl-faced ceramic tile.

[0062] In a preferred embodiment of this application, when preparing the surface glaze slurry by ball milling, the ball-milled slurry needs to be aged for 20-28 minutes.

[0063] In a preferred embodiment of this application, the fineness of the surface glaze slurry is 250-300 mesh, and the specific gravity of the surface glaze slurry is 1.9-1.95.

[0064] In a preferred embodiment of this application, ball milling is also required when preparing the polishing glaze into a polishing glaze slurry, and the specific gravity of the resulting polishing glaze slurry is 1.8-2.0.

[0065] After the ball-milled polishing glaze slurry and stone are mixed, they need to be stirred evenly and aged for 20-28 minutes before the glaze is applied.

[0066] In a preferred embodiment of this application, in step S3, when applying the surface glaze slurry, the thickness of the slurry is 1.5mm-3mm, for example, it can be 1.5mm, 2mm, 2.5mm, 3mm or any value between 1.5mm and 3mm.

[0067] After the surface glaze slurry is applied, the process also includes: inkjet printing on the surface of the blank after the surface glaze slurry has been applied, followed by the application of a mixed glaze slurry.

[0068] More preferably, after inkjet printing, the application of the mixed glaze paste specifically includes: screen printing the mixed glaze paste on the blank areas of the inkjet-printed pattern, and screen printing the polishing glaze paste on the texture areas of the inkjet-printed pattern.

[0069] Understandably, the polished glaze paste of this application becomes a transparent glaze layer after high-temperature firing. However, the mixed glaze paste, due to the addition of oolitic particles and rutile, does not become a transparent glaze layer after high-temperature firing; instead, it exhibits a pearlescent effect. Therefore, after inkjet printing, if the polished glaze paste is printed separately onto the pattern texture area, the glaze layer will not obscure the inkjet pattern after firing. However, if the mixed glaze paste is printed onto the pattern texture area, the glaze surface will exhibit a pearlescent effect after firing, making it difficult to clearly display the shape of the underlying inkjet-printed pattern. This obviously wastes the inkjet printing process.

[0070] It is particularly important to note that when performing screen printing, the printing thickness of the mixed glaze paste and the printing thickness of the polishing glaze paste must be consistent, both being 1.5mm-3mm. For example, it can be 1.5mm, 2mm, 2.5mm, 3mm, or any value between 1.5mm and 3mm.

[0071] In a preferred embodiment of this application, before firing in S3, the process further includes: placing the green body to be fired in a drying kiln at 200℃-300℃ for drying. This is mainly to remove as much moisture as possible from the green body and the glaze slurry on its surface.

[0072] After firing, the process also includes polishing and edge grinding. Specifically, during polishing, tooth-shaped elastic abrasive blocks are mainly used, with 6 groups of 400 grit, 8 groups of 600 grit, 10 groups of 800 grit, 10 groups of 1000 grit, 6 groups of 1500 grit, 6 groups of 2000 grit, and 6 groups of 3000 grit. The belt drive is 26 Hz, the pressure is 3 kg, the oscillation speed is 40 Hz, and the delay is 16 s.

[0073] In a preferred embodiment of this application, the firing temperature in S3 is 1165℃-1180℃, for example, it can be 1165℃, 1170℃, 1175℃, 1180℃ or any value between 1165℃ and 1180℃, and the firing time is 60min-70min, for example, it can be 60min, 62min, 65min, 68min, 70min or any value between 60min and 70min.

[0074] The implementation schemes of this application will be described in detail below with reference to specific embodiments. However, those skilled in the art will understand that the following embodiments are only for illustrating this application and should not be regarded as limiting the scope of this application. Unless otherwise specified in the embodiments, conventional conditions or conditions recommended by the manufacturer shall apply. Reagents or instruments used without specified manufacturers are all conventional products that can be purchased commercially.

[0075] Example 1

[0076] This embodiment provides a high wear-resistant pearl-finish ceramic tile, comprising a surface glaze layer and a polished glaze layer sequentially attached to the surface of the body.

[0077] The raw materials for the surface glaze, by weight, include: 30 parts kaolin, 15 parts lithium feldspar powder, 10 parts flint, 10 parts dolomite, 5 parts zirconium silicate, 3 parts strontium carbonate, 3 parts zinc oxide, and 2 parts corundum.

[0078] The raw materials for the polished glaze layer include: polishing glaze material and stone. Among them, the stone is oolitic grains and rutile, and the mass ratio of oolitic grains to rutile is 10:1; the polishing glaze material, by weight, includes: 20 parts nepheline, 20 parts glass powder, 10 parts wollastonite, 10 parts washed clay, 10 parts albite, 4 parts potassium carbonate, 3 parts calcite, and 2 parts barium sulfate.

[0079] The preparation method of this high wear-resistant pearl-finish ceramic tile, wherein all parts are by weight, includes:

[0080] (1) After weighing and screening the polishing glaze material of this embodiment, it is ball-milled to make a slurry. 100 parts of polishing glaze material, 1.5 parts of methylcellulose, 3 parts of sodium tripolyphosphate and 50 parts of water are added to the ball mill and ball-milled to obtain polishing glaze slurry.

[0081] (2) After weighing and screening the raw materials of the surface glaze layer in this embodiment, the glaze is ball-milled and slurry is prepared. The ratio of glaze, auxiliary materials and water in the slurry is the same as in step (1). After ball milling, the glaze is aged for 25 minutes to obtain a surface glaze slurry with a specific gravity of 1.9.

[0082] (3) Weigh 80 parts of the polishing glaze slurry from step (1), add 15 parts of stone material to it, stir evenly, and let it age for 25 minutes to obtain the mixed glaze slurry.

[0083] (4) On the surface of ordinary antique brick blanks, first apply a 2mm thick layer of surface glaze slurry, and then apply a 2mm thick layer of mixed glaze slurry.

[0084] (5) After printing, the blank is sent into a drying kiln and dried at 200°C. Then it is sent into the kiln for firing. The firing temperature is 1165°C and the firing time is 70 minutes.

[0085] (6) After the kiln cools down, the semi-finished product is polished and ground to make ceramic brick finished product.

[0086] Example 2

[0087] The high wear-resistant pearl-faced ceramic tile provided in this embodiment includes a surface glaze layer and a polished glaze layer that are sequentially attached to the surface of the body. The raw materials of the polished glaze layer are the same as those in Embodiment 1, while the raw materials of the surface glaze layer, by weight, include: 40 parts of kaolin, 30 parts of lithium feldspar powder, 20 parts of flint, 20 parts of dolomite, 10 parts of zirconium silicate, 8 parts of strontium carbonate, 6 parts of zinc oxide, and 6 parts of corundum.

[0088] The preparation method of this high wear-resistant pearl-finish ceramic tile is the same as in Example 1, except that:

[0089] After applying a 2mm thick surface glaze layer in step (4), inkjet printing was performed. Then, in the blank areas of the inkjet-printed pattern, screen printing technology was used to print the mixed glaze paste prepared in step (3) onto the blank areas, with a glaze layer printing thickness of 2mm. Then, screen printing technology was used again to print the polished glaze paste prepared in step (1) on the remaining areas, with a printing thickness of 2mm as well.

[0090] Example 3

[0091] The high wear-resistant pearl-finish ceramic tile provided in this embodiment includes a surface glaze layer and a polished glaze layer sequentially attached to the surface of the body. The raw materials for the surface glaze layer and the preparation method of the ceramic tile are the same as in Embodiment 2, except that:

[0092] The polished glaze layer in this embodiment includes polishing glaze and stone material, wherein the stone material is still oolitic particles and rutile in a mass ratio of 10:1; and the polishing glaze, by weight, includes: 30 parts nepheline, 30 parts glass powder, 20 parts wollastonite, 20 parts washed clay, 20 parts albite, 8 parts potassium carbonate, 65 parts calcite, and 6 parts barium sulfate.

[0093] Example 4

[0094] The high wear-resistant pearl-finish ceramic tile provided in this embodiment includes a surface glaze layer and a polished glaze layer sequentially attached to the surface of the body. The raw materials for the surface glaze layer and the preparation method of the ceramic tile are the same as in Embodiment 3, except that:

[0095] The polished glaze layer in this embodiment includes polishing glaze and stone material. The polishing glaze is the same as in embodiment 3, while the stone material is oolitic particles and rutile in a mass ratio of 15:2.

[0096] Comparative Example 1

[0097] This comparative example provides a ceramic tile, comprising a surface glaze layer and a polished glaze layer sequentially attached to the surface of a body. The raw materials for the surface glaze layer, the polishing glaze in the polished glaze layer, and the preparation method of the ceramic tile are the same as in Example 2, except that:

[0098] The stone used in the glazed layer is sunset red ore and rutile in a mass ratio of 10:1.

[0099] Comparative Example 2

[0100] This embodiment provides a pearl-finish ceramic tile, comprising a surface glaze layer and a polished glaze layer sequentially attached to the surface of the ceramic body. The raw materials for the polished glaze layer and the preparation method of the ceramic tile are the same as in Embodiment 2, except that:

[0101] The raw materials for the surface glaze are those commonly used in antique bricks. By weight, they include: 5 parts kaolin, 22 parts potassium feldspar powder, 8 parts sodium feldspar, 15 parts limestone, 7 parts wollastonite, 22 parts calcined talc, 10 parts alumina, 4 parts zirconium silicate, 3 parts zinc oxide, and 4 parts barium carbonate.

[0102] Comparative Example 3

[0103] This embodiment provides a polished glazed ceramic tile, wherein the raw materials for the surface glaze layer, the polishing glaze in the polished glaze layer, and the preparation method of the ceramic tile are the same as in Embodiment 2, except that:

[0104] The raw materials for the polished glaze layer only contain polishing glaze material, and do not contain oolitic particles or rutile.

[0105] Figure 1 A photograph of the high wear-resistant pearl-faced ceramic tile prepared in Example 1 is provided. Figure 2 A photograph of the high wear-resistant pearl-finish ceramic tile prepared in Example 2 is provided. Figure 3 A physical image of the ceramic brick prepared in Comparative Example 3 is provided.

[0106] The ceramic tiles prepared in Examples 1-4 of this application all exhibited a pearlescent surface effect. In Example 1, because a mixed glaze was applied to the polished glaze layer, a pearlescent effect was observed across the entire glaze surface. Figure 1 As shown. In Example 2, after inkjet printing, only specific locations were printed with a mixed glaze containing stone, while other locations were printed with a polishing glaze. Therefore, only some areas of the fired glaze exhibited a noticeable pearlescent effect, such as... Figure 2 As shown.

[0107] In Comparative Examples 1-3, the raw materials for the glaze layer in Comparative Example 2 remained unchanged, resulting in a pearlescent effect on the ceramic tile surface. However, due to the effect of the glaze, the pearlescent sheen was not pronounced. In Comparative Example 1, although stones containing sunset red ore and rutile were added to the glaze layer, no pearlescent sheen appeared after firing. In Comparative Example 3, because no stones were added to the glaze layer, only the glaze material, the ceramic tile surface also failed to exhibit a pearlescent effect after firing. Figure 3 As shown.

[0108] The ceramic tiles prepared in Examples 1-4 and Comparative Examples 1-3 were tested for friction coefficient, compressive strength, water absorption, acid and alkali resistance, and hardness. The test results are shown in Table 1.

[0109] Table 1 Performance test results of Examples 1-4 and Comparative Examples 1-3

[0110]

[0111] In Comparative Example 1, sunset red ore, whose main component is calcium carbonate, was selected. Although its composition is similar to that of oolitic particles, it did not form a pearl-like surface after firing, and its coefficient of friction, compressive strength, and hardness were all low. In Comparative Example 2, because conventional surface glaze was used, the compressive strength and hardness of the ceramic tile glaze were slightly lower. In Comparative Example 3, no stone containing oolitic particles and rutile was added, only polishing glaze was used, and the surface of the ceramic tile prepared also did not show a pearl-like decorative effect.

[0112] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

[0113] Furthermore, those skilled in the art will understand that although some embodiments herein include certain features included in other embodiments but not others, combinations of features from different embodiments are intended to be within the scope of this application and form different embodiments. For example, any of the embodiments claimed above can be used in any combination. The information disclosed in this background section is intended only to enhance the understanding of the general background of this application and should not be construed as an admission or in any way implying that such information constitutes prior art known to those skilled in the art.

Claims

1. A high wear-resistant pearl-finish ceramic tile, characterized in that, This includes a surface glaze layer and a polished glaze layer that are sequentially attached to the surface of the body; The raw materials for the surface glaze layer, by weight, include: 30-40 parts kaolin, 15-30 parts lithium feldspar powder, 10-20 parts flint, 10-20 parts dolomite, 5-10 parts zirconium silicate, 3-8 parts strontium carbonate, 3-6 parts zinc oxide, and 2-6 parts corundum. The raw materials for the polished glaze layer include polishing glaze and stone materials, wherein the stone materials include oolitic particles and rutile. In the stone, the mass ratio of oolitic particles to rutile is (60-80):(6-8); The oolitic particles have a fineness of 200-300 mesh, and the rutile particles have a fineness of 300-400 mesh. The polishing glaze, by weight, includes: 20-30 parts nepheline, 20-30 parts glass powder, 10-20 parts wollastonite, 10-20 parts washed clay, 10-20 parts albite, 4-8 parts potassium carbonate, 3-6 parts calcite, and 2-6 parts barium sulfate. The method for preparing the polished glaze layer includes: making the polished glaze material into a polished glaze slurry, mixing it with the stone material, and then applying the slurry; The mass ratio of the polishing glaze to the stone is (80-90):(10-20). The polishing glaze paste, by weight, comprises: 100 parts of the polishing glaze material, 1-3 parts of methylcellulose, 1-3 parts of sodium tripolyphosphate, and 40-70 parts of water.

2. The high wear-resistant pearl-finish ceramic tile as described in claim 1, characterized in that, An inkjet pattern layer is also provided between the surface glaze layer and the polished glaze layer.

3. A method for preparing a high wear-resistant pearl-finish ceramic tile as described in claim 1 or 2, characterized in that, include: The raw materials for the surface glaze layer are ball-milled to obtain a surface glaze slurry; The polishing glaze is made into a polishing glaze slurry, and then mixed with the stone to obtain a mixed glaze slurry; The surface glaze slurry and the mixed glaze slurry are applied sequentially to the surface of the blank, and then fired to obtain the high wear-resistant pearl-faced ceramic tile.

4. The preparation method according to claim 3, characterized in that, At least one of the following conditions must be met: a. The fineness of the surface glaze slurry is 250-300 mesh; b. The specific gravity of the surface glaze slurry is 1.9-1.95; c. The thickness of the surface glaze slurry is 1.5mm-3mm; d. The specific gravity of the polishing glaze slurry is 1.8-2.0; e. The thickness of the mixed glaze slurry is 1.5mm-3mm; f. After the surface glaze slurry is applied, the method further includes: after inkjet printing on the surface of the blank, the mixed glaze slurry is applied again; g. Before firing, the process further includes: placing the blank to be fired in a drying kiln at 200℃-300℃ for drying treatment; h. After firing, the process also includes polishing and edge grinding.

5. The preparation method according to claim 4, characterized in that, After inkjet printing, the application of the mixed glaze includes: The mixed glaze is screen-printed at the blank areas of the inkjet-printed pattern, and the polishing glaze is screen-printed at the texture areas of the inkjet-printed pattern.

6. The preparation method according to any one of claims 3-5, characterized in that, The firing temperature is 1165℃-1180℃, and the firing time is 60min-70min.

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