Combined surface ceramic tile capable of digitally regulating and controlling multi-surface-domain texture and preparation method of combined surface ceramic tile

Abstract

The invention belongs to the field of architectural ceramics, and discloses a combined surface ceramic tile capable of digitally regulating and controlling multi-surface-domain texture and a preparation method thereof.The combined surface ceramic tile sequentially comprises a green brick layer, a ground coat layer, a color pattern layer and surface domain areas distributed on the color pattern layer, and the surface domain areas comprise a plurality of first surface domains and a plurality of second surface domains; the first surface domain is formed by matte glaze; the second area is formed by a positioning glue layer and dry particles distributed in the positioning glue layer. Differentiation of dry particle heights at different preset positions is realized through spray printing gray level regulation and control of positioning glue, and in cooperation with selection of dry particles of specific components and unified polishing and grinding parameters, various gloss expressions after application of the dry particles and areas of various gloss expressions formed through different polishing and grinding degrees can be formed on the surface of the combined surface ceramic tile; and a matte natural surface domain formed by spraying matte glaze can be presented, so that the limitation of single surface effect of a traditional ceramic tile is broken through, and the requirements of modern consumers on ceramic tile decoration diversity and aesthetic high-order property are fully met.

Description

Technical Field

[0001] This invention belongs to the field of architectural ceramics technology, and specifically relates to a composite ceramic tile with digitally controlled multi-faceted texture and its preparation method. Background Technology

[0002] As living standards improve, people's aesthetic preferences for decoration and building materials are becoming increasingly personalized, with a greater emphasis on surface texture and visual and tactile effects. Ceramic tiles, which can imitate many stone patterns, colors, textures, and other effects, and have superior physical and chemical properties, are increasingly being used in modern decoration.

[0003] Existing glazed ceramic tiles mainly include antique tiles and polished glazed tiles. Antique tiles utilize a combination of glaze, colored inks, and functional inks, sometimes with pre-polishing, to create an antique, naturally eroded, uneven, and low-gloss effect, giving a rustic and elegant feel. Polished glazed tiles, on the other hand, use a combination of glaze and colored inks, along with pre-polishing, to create a smooth, medium-to-high gloss surface with rich patterns and textures; these patterns and textures are visible but not tangible. Additionally, there are surface finishes that combine glaze and functional inks to create a textured surface, but these methods produce relatively fixed and less varied effects. In summary, the surface effects of these methods are repetitive, monotonous, and predictable; almost every tile has a similar appearance, failing to offer the visual and tactile variations that different areas of each tile can provide, thus limiting their effectiveness. Summary of the Invention

[0004] The present invention aims to improve at least one technical problem in the prior art.

[0005] The first aspect of the present invention provides a digitally controlled multi-faceted textured composite ceramic tile, which sequentially includes a brick body layer, a base glaze layer, a color and pattern layer, and faceted areas distributed on the color and pattern layer, wherein the faceted areas include multiple first faceted areas and multiple second faceted areas. The first surface area is formed by a matte glaze; The second surface area is formed by a positioning adhesive layer and dry particles distributed in the positioning adhesive layer. The dry particles used to form a single second surface area are any one of the first dry particles, second dry particles, third dry particles, fourth dry particles, or fifth dry particles. The silicon-to-aluminum mass ratio of the first dry granules is (2.18~2.78):1; The silicon-to-aluminum mass ratio of the second dry granule is (2.46~3.16):1; The silicon-aluminum mass ratio of the third dry granule is (2.73~3.52):1; The silicon-to-aluminum mass ratio of the fourth dry granule is (3.10~4.01):1; The silicon-to-aluminum mass ratio of the fifth dry granule is (3.42~4.39):1; The particle size distribution of the first dry granules, by mass percentage, includes: 50% 100μm~120μm particles, 40% 60μm~70μm particles, and 10% 5μm~10μm particles; The particle size distribution of the second dry granules, by mass percentage, includes: 40% 100μm~120μm particles, 40% 60μm~70μm particles, and 20% 5μm~10μm particles; The particle size distribution of the third dry granule, by mass percentage, includes: 30% 100μm~120μm particles, 40% 60μm~70μm particles, and 30% 5μm~10μm particles; The particle size distribution of the fourth dry granule, by mass percentage, includes: 20% 100μm~120μm particles, 40% 60μm~70μm particles, and 40% 5μm~10μm particles; The particle size distribution of the fifth dry granule, by mass percentage, includes: 10% 100μm~120μm particles, 40% 60μm~70μm particles, and 50% 5μm~10μm particles.

[0006] This application enables diverse decorative effects and a high-end aesthetic experience on the surface of ceramic tiles. The digitally controlled, multi-faceted textured composite ceramic tile, with each layer and facet working in synergy, ensures structural stability while enriching the visual and tactile layers of the surface. The distribution of multiple first and second facets in this application can be planned digitally using software. By setting preset coordinates and area proportions, and employing different materials (matte glaze or different dry granules) in different facets according to preset gloss requirements, a naturally staggered effect is ultimately achieved.

[0007] In this application, the first surface area is formed by a matte glaze. Its material properties give this surface area a soft and delicate matte texture, presenting a dark and deep natural visual effect, laying a warm tone for the overall decorative style of the tile, while forming a sharp contrast with the second surface area, enhancing the decorative layering. The first surface area corresponds to a matte effect with a gloss level of 2° to 10°.

[0008] In this application, the second surface area is composed of a positioning adhesive layer and dry granules distributed therein. The positioning adhesive layer provides a stable adhesion base for the dry granules, ensuring a tight bond between the dry granules and the color pattern layer, the base glaze layer, and the tile body layer, thus preventing problems such as detachment and peeling during use. In this application, the dry granules used in a single second surface area are any one of the first to fifth types, and each dry granule achieves differentiated gloss performance through a specific silicon-to-aluminum mass ratio design. The silicon-to-aluminum mass ratio is a key factor affecting the surface gloss characteristics after the dry granules melt. Silicon is the core skeletal component of the glass phase formed after the dry granules melt, while aluminum directly affects the degree of crystallinity, density, and precipitation of the glass phase. Different silicon-to-aluminum (SiA) mass ratios result in varying contents and types of crystalline phases within the granulated dry particles after firing. The presence of these crystalline phases has a crucial impact on gloss. A high SiA mass ratio promotes the formation of a continuous and dense glassy phase, reducing the precipitation of mullite, corundum, and other crystalline phases, lowering surface porosity, and allowing light to undergo regular specular reflection, resulting in superior gloss. Conversely, increasing the alumina content (lower SiA mass ratio) easily promotes the precipitation of mullite, corundum, and other crystalline phases during high-temperature melting, while also easily forming micropores, causing diffuse reflection of a large amount of light and thus reducing gloss. As the SiA mass ratio gradually increases from (2.18~2.78):1 in the first dry particle to (3.42~4.39):1 in the fifth dry particle, the proportion of silicon increases while the proportion of aluminum relatively decreases. The resulting glassy phase structure after firing becomes more complete and dense, the proportion of crystalline phase decreases, and the reflection of light gradually shifts from diffuse reflection to specular reflection, laying the core foundation for the differentiated gloss effects of each second surface region.

[0009] However, both silica and alumina are high-bond-energy oxides with high chemical stability, making them difficult to melt. Furthermore, the higher the silica-to-alumina mass ratio, the more difficult it is to melt the dry particles. This leads to a decrease in the overall surface smoothness of the dry particles and a more pronounced grainy texture, which in turn affects gloss improvement. To address this issue, this application does not design the silica-to-alumina mass ratio or particle size distribution in isolation. Instead, it precisely matches the corresponding ratio of coarse to fine dry particles based on the melting characteristics of different silica-to-alumina mass ratios. For example, for dry particles with a slightly lower silica-to-alumina mass ratio and relatively easy melting, the low-gloss effect is enhanced based on the partial melting and scattering characteristics of coarse particles (100μm~120μm), and since the dry particles themselves are easy to melt, there is no need for an excessively high proportion of easily fusible fine particles (5μm~10μm). Therefore, a particle size distribution with more coarse particles and fewer fine particles is designed. For dry particles with a higher silica-to-alumina mass ratio and difficult melting, a particle size distribution with more fine dry particles and fewer coarse dry particles is designed. The characteristic that fine particles are easier to completely melt compensates for the melting shortcomings of dry particles with a high silica-to-alumina mass ratio, improving surface density and gloss. Therefore, the particle size distribution of each dry particle in this application is precisely planned. By mass percentage, the first dry particle contains 50% coarse particles of 100μm~120μm, 40% medium particles of 60μm~70μm, and 10% fine particles of 5μm~10μm. As the dry particle type transitions from the first to the fifth, the proportion of fine particles gradually increases from 10% to 50%, while the proportion of coarse particles decreases from 50% to 10%, forming a particle size distribution gradient that matches the silicon-aluminum mass ratio. During the firing and melting process, the differences in properties between particles of different sizes further refine the gloss performance: coarse particles have a large particle size, with only partial melting at the edges, while the unmelted solid particles inside have a particle size of 40μm~60μm. The interaction between the reflected light from the molten phase and the disordered refraction and diffuse reflection caused by the uneven surface of the solid particles significantly weakens the gloss. Medium particles have most of their edges melted, while the unmelted solid particles inside have a particle size of 1μm~10μm. The reflected light from the molten phase is affected by the scattering of the fine solid particles, resulting in a slight decrease in gloss. Fine particles are almost completely melted, forming a pure homogeneous phase. The dense and flat surface achieves pure reflection of most of the incident light, greatly improving the gloss. This dual synergistic design of composition and particle size distribution allows for precise gloss control from matte to glossy. A high silica-alumina ratio combined with a high proportion of fine dry particles constitutes the optimal gloss combination, while a low silica-alumina ratio combined with a high proportion of coarse dry particles results in the lowest gloss performance. The gradient of coarse and fine particle ratios and the uniform proportion of medium particles ensure that the dry particles can be evenly distributed, stabilizing the packing gaps and achieving reasonable gradation filling. Ultimately, each dry particle exhibits a clear gloss gradient: the first dry particle corresponds to a soft gloss effect of 10°~20°, the second dry particle corresponds to a soft gloss effect of 20°~35°, the third dry particle corresponds to a low-to-medium gloss effect of 35°~55°, the fourth dry particle corresponds to a medium gloss effect of 55°~70°, and the fifth dry particle corresponds to a high-to-medium gloss effect of 70°~85°.

[0010] In this application, multiple first surfaces and multiple second surfaces with different gloss levels are arranged in a staggered manner on the color pattern layer. The rich texture of the color pattern layer is organically integrated with the differences in gloss and texture of each surface, which not only avoids visual fragmentation but also makes the surface effect of each tile unique and random. Ultimately, it achieves a visual and tactile decorative effect that combines different visual gloss and tactile experience, fully meeting the modern decoration demand for personalized, high-quality tiles.

[0011] In some preferred embodiments, the first dry granules comprise, by mass percentage: 44.5%~49.5% SiO2, 17.8%~20.4% Al2O3, 7.2%~8.8% CaO, 3.6%~4.4% MgO, 4.6%~5.6% K2O, 1.8%~2.2% Na2O, 2.7%~3.3% BaO, 6.3%~7.6% SrO, and 4.6%~5.6% ZnO; The second dry granule, by mass percentage, comprises: SiO2 47.5%~52.7%, Al2O3 16.7%~19.3%, CaO 7.2%~8.8%, MgO 2.7%~3.3%, K2O 4.6%~5.6%, Na2O 2.8%~3.4%, BaO 1.8%~2.1%, SrO 5.5%~6.6%, and ZnO 4.5%~5.5%. The third dry granule, by mass percentage, includes: SiO2 50.0%~55.6%, Al2O3 15.8%~18.3%, CaO 6.4%~7.8%, MgO 2.7%~3.3%, K2O 6.3%~7.6%, Na2O 0.9%~1.1%, SrO 6.3%~7.7%, and ZnO 4.5%~5.5%. The fourth dry granule, by mass percentage, includes: SiO2 53.3%~59.0%, Al2O3 14.7%~17.2%, CaO 5.5%~6.7%, MgO 3.6%~4.4%, K2O 7.3%~8.9%, SrO 4.5%~5.5%, and ZnO 4.5%~5.5%. The fifth dry granule, by mass percentage, includes: SiO2 55.0%~61.0%, Al2O3 13.9%~16.1%, CaO 5.4%~6.6%, MgO 3.6%~4.4%, K2O 7.2%~8.7%, SrO 2.7%~3.3%, and ZnO 5.4%~6.6%.

[0012] In some preferred embodiments, the raw materials for the matte glaze include, by weight: 24-28 parts of albite, 10.5-13.5 parts of kaolin, 7-9 parts of dolomite, 4.5-5.5 parts of calcined kaolin, 4.5-5.5 parts of calcined talc, 3.5-4.5 parts of zinc oxide, and 37-43 parts of matte frit.

[0013] In some preferred embodiments, the matte glaze comprises, by mass percentage: 49.0%~54.0% SiO2, 18.8%~21.6% Al2O3, 5.0%~6.0% CaO, 4.8%~5.7% MgO, 1.5%~1.9% K2O, 3.3%~4.0% Na2O, 3.7%~4.5% BaO, 0.4%~0.6% SrO, and 5.5%~6.7% ZnO.

[0014] In some preferred embodiments, the surface area further includes a plurality of recessed third surface areas disposed on the color pattern layer, the third surface areas being formed by a hydrophobic ink layer, a base glaze layer, a color pattern layer, and a matte glaze.

[0015] This application further enriches the surface texture and decorative diversity of composite ceramic tiles with digitally controlled multi-faceted textures through a third surface area. The third surface area complements the first and second surface areas, enhancing the high-level aesthetic effect of "visual and tactile integration." The third surface area is composed of a hydrophobic ink layer, a base glaze layer, a color pattern layer, and a matte glaze. The hydrophobic ink layer itself has low surface energy material properties. When it comes into contact with the base glaze layer, it changes the interface bonding state at the corresponding contact point, preventing the base glaze layer from forming a complete, flat, continuous structure in that area, thus naturally presenting a locally concave texture. This concave texture differs from the matte, flat texture of the first surface area and the raised, glossy texture of the second surface area, forming a three-dimensional tactile contrast of concave-flat-convex, making the tactile experience of the tile surface more layered and varied.

[0016] In some preferred embodiments, a first protective glaze layer is also provided on the surface area.

[0017] The first protective glaze layer is formed by a first protective glaze, which, by mass percentage, comprises: SiO2 59.0%~64.0%, Al2O3 14.0%~16.2%, CaO 10.0%~12.0%, K2O 5.2%~6.3%, Na2O 1.5%~2.2%, and ZnO 3.8%~4.6%. The raw materials for the first protective glaze, by weight, include: 42-49 parts potassium feldspar, 16-19 parts quartz, 15-18 parts wollastonite, 10-12 parts calcite, 6-7 parts alumina, and 3-4 parts zinc oxide.

[0018] In this application, the first protective glaze has a fine particle size, which can quickly penetrate and fill the gaps between the dry particles, and further promote the low-temperature co-melting of the dry particle layer. This ensures transparency without affecting the color of the bottom pattern, resulting in a ceramic tile with high transparency and better stain resistance after firing.

[0019] A second aspect of this invention provides a method for preparing the aforementioned digitally controlled multi-faceted textured composite ceramic tile, wherein the base glaze layer is formed by a base glaze, the color pattern layer is formed by color ink, and the positioning adhesive layer is formed by positioning adhesive; the preparation method includes the following steps: A base glaze is applied to the surface of the brick body, colored ink is sprayed on, and then matte glaze is applied to multiple preset first surface areas according to a preset digital pattern file. Subsequently, positioning adhesive is sprayed on multiple preset second surface areas according to a preset digital pattern file, and dry granules are applied to multiple preset second surface areas according to a preset digital pattern file. The brick is then fired and polished to obtain a composite surface ceramic tile with digitally controlled multi-surface texture.

[0020] The grayscale of the positioning adhesive is 20% to 90%, and the grayscale of the positioning adhesive at at least two preset positions of the second surface area is different.

[0021] The polishing pressure is 1 bar to 4 bar, and the polishing depth is 0.02 mm to 0.1 mm.

[0022] The method for preparing composite ceramic tiles with digitally controlled multi-faceted texture provided in this application achieves diverse gloss and height differences in different second-faced areas through the synergy of grayscale control of positioning adhesive and uniform polishing process.

[0023] This application allows for the pre-drawing of a partitioned pattern of the surface area using digital design software, clearly defining the specific location, boundary coordinates, and area proportion of each surface area. Simultaneously, the application of process parameters corresponding to each surface area is linked to the digital pattern file (such as the amount of matte glaze applied to each first surface area, the grayscale of the positioning adhesive spraying for each second surface area, and the type of dry granules applied to each second surface area). Subsequently, when applying the matte glaze and spraying the positioning adhesive, the corresponding spraying and printing equipment directly reads the digital pattern file and, according to the precise instructions in the file, accurately applies the matte glaze to the preset first surface area position and precisely sprays the positioning adhesive to the preset second surface area position. When applying the dry granules, the dry granule application equipment, according to the precise instructions in the file, applies the first, second, third, fourth, and fifth dry granules to the corresponding positions.

[0024] When spraying positioning adhesive at preset positions in the second surface area, this application limits the spraying grayscale to 20%~90%, and the grayscale of at least two preset positions is different. The grayscale value directly corresponds to the amount of positioning adhesive sprayed. The amount of adhesive is directly proportional to the adhesion thickness of the dry particles applied later: the higher the grayscale, the more adhesive, the more dry particles are adhered, and the higher the height of the raised structure formed after firing; the lower the grayscale, the less adhesive, the thinner the adhesion thickness of the dry particles, and the lower the height of the raised structure. Ultimately, each second surface area forms a height difference of 0.5mm~3mm, laying the structural foundation for the differentiated effect of subsequent polishing.

[0025] This application employs a uniform parameter design for the polishing process after firing, eliminating the need to adjust parameters for different preset positions. Under this uniform polishing condition, the height of the raised structure in the second surface region directly determines the degree of abrasion. Areas with lower raised heights do not reach the polishing depth threshold and may retain the original gloss state after firing the dry granules; while areas with higher raised heights will fully withstand the polishing action, resulting in uniform abrasion of the surface dry granule layer and further optimization of gloss. Crucially, the second surface region using the fifth dry granule already possesses a medium-high gloss effect of 70°~85° after firing. After polishing, the surface glass phase structure becomes denser and smoother, and light reflection is closer to specular reflection, further increasing the gloss to above 85° (such as 88°, 90°, 95°, etc.), forming a distinct high-gloss effect and creating a richer contrast with the soft, medium-low, and medium gloss effects of other dry granule areas.

[0026] The preparation method described in this application achieves precise multi-faceted tile distribution through a sequential process involving base glaze application, digital printing of color patterns, digital application of matte glaze, digital grayscale positioning adhesive printing, digital dry granule application, firing, and digital parameter polishing. This results in a diverse combination of matte, glossy, and high-gloss surfaces, offering rich visual layers and tactile differences, achieving a high-level decorative effect that is random, natural, and visually and tactilely integrated. This entire preparation process is digitally controlled and repeatable, making it suitable for large-scale industrial production.

[0027] The highest firing temperature is 1140℃~1160℃.

[0028] The amount of base glaze applied was 440 g / m. 2 ~460 g / m 2 .

[0029] The amount of matte glaze applied was 210 g / m. 2 ~250 g / m 2 .

[0030] Polishing is performed using elastic grinding blocks and fiber grinding blocks.

[0031] The elastic abrasive blocks used in this application have excellent abrasive properties and can closely adhere to the surface of areas with higher dry granule layers, ensuring uniform pressure transmission during the abrasive process and avoiding excessive or insufficient abrasion in certain areas. The fiber abrasive blocks, on the other hand, have a delicate abrasive effect, which can improve the smoothness and fineness of the surface of digitally controlled multi-faceted textured composite ceramic tiles after abrasive polishing, and reduce surface scratches and other defects.

[0032] In some preferred embodiments, brush polishing is performed before or after polishing, using a brush-type abrasive block, with a pressure of 0 bar to 0.5 bar.

[0033] This application further utilizes brush polishing as a supplementary step in the polishing process to optimize the tactile and visual effects of the multi-faceted textured composite tile surface, which is digitally controlled. Using a brush-type polishing block for brush polishing, and applying it under low or no pressure, avoids damaging the surface effect created by the main polishing process. Brush polishing before the main polishing process effectively removes dust and small protrusions from the dry granule layer, providing a more uniform surface base for subsequent polishing processes and improving the stability of the polishing effect. Brush polishing after the main polishing process allows for micro-processing of areas below the polishing depth, creating a soft, micro-polished effect and enhancing the overall tactile smoothness of the composite tile surface. The flexible timing of brush polishing can adapt to different process design requirements and work in conjunction with the polishing process to further enrich the tactile layers of the digitally controlled multi-faceted textured composite tile surface.

[0034] In some preferred embodiments, the surface area further includes a plurality of recessed third surface areas distributed on the color pattern layer, the third surface areas being formed by a hydrophobic ink layer, a base glaze layer, a color pattern layer, and a matte glaze. At this point, the preparation method of the composite surface tile with digital control of multi-faceted texture also includes the following steps: before or after applying the base glaze, spraying hydrophobic ink at the positions of multiple preset third facets according to the preset digital pattern file.

[0035] In some preferred embodiments, a first protective glaze layer is further provided on the surface area, the first protective glaze layer being formed of a first protective glaze; At this point, the preparation method of composite surface ceramic tiles with digital control of multi-faceted texture also includes the following steps: after applying dry granules, apply a first protective glaze.

[0036] The application amount of the first protective glaze is 180 g / m². 2 ~220 g / m 2 .

[0037] In some preferred embodiments, a second protective glaze is applied after the color ink is printed.

[0038] This application further utilizes a second protective glaze to provide physical protection for the color pattern layer formed by the colored ink, preventing subsequent processes such as positioning adhesive spraying and dry granule application from causing wear or contamination to the color pattern layer, while also preventing the high-temperature environment during firing from affecting color stability. The composition of the second protective glaze in this application is the same as that of the first protective glaze.

[0039] The beneficial effects of this invention are as follows: This invention achieves differentiation in the height of dry granules at different preset positions by controlling the grayscale of the inkjet printing of the positioning adhesive. Combined with the selection of specific dry granule components and unified polishing parameters, the digitally controlled multi-faceted textured tile surface can form various gloss effects resulting from the application of dry granules and different degrees of polishing. It can also present a matte, natural surface formed by matte glaze printing, and create unique recessed textured surfaces using hydrophobic inks. These various surfaces combine with each other while maintaining a suitable, continuous area, avoiding visual fragmentation. These processed surfaces exhibit rich differences in depth, gloss, and tactile feel, ranging from deep, muted matte effects and delicate textured surfaces to diverse gloss levels from soft to high gloss. This ensures that the surface effect of each tile is unique, achieving a high-level aesthetic experience that is random, natural, and visually and tactilely integrated. At the same time, the organic integration of colors, patterns and various process surfaces further enriches the decorative layers, breaks the limitation of the single surface effect of traditional tiles, and provides more personalized and high-quality choices for decoration and renovation, fully meeting the needs of modern consumers for the diversity and high aesthetic level of tile decoration. Attached Figure Description

[0040] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0041] Figure 1 The image shows a physical photograph of the digitally controlled multi-faceted textured composite ceramic tile prepared in Example 1. Figure 2 The image shows the actual ceramic tile produced in Comparative Example 2. Figure 3 This is a photograph of the actual ceramic tile produced in Comparative Example 4. Detailed Implementation

[0042] The present invention will be further described below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, it should be understood that after reading the description of this invention, those skilled in the art can make various alterations or modifications to the invention, and these equivalent forms also fall within the scope defined by the appended claims.

[0043] Example 1 A digitally controlled multi-faceted textured composite ceramic tile, comprising, in sequence, a tile body layer, a base glaze layer, a color and pattern layer, and multiple first facets and multiple second facets distributed on the color and pattern layer; The first surface area is formed by a matte glaze, which, by weight percentage, comprises: SiO2 51.48%, Al2O3 20.1%, CaO 5.52%, MgO 5.26%, K2O 1.66%, Na2O 3.64%, BaO 4.13%, SrO 0.53%, ZnO 6.05%, with the remainder being loss on ignition and impurities. The raw materials for the matte glaze, by weight, comprise: albite 26 parts, kaolin 12 parts, dolomite 8 parts, calcined kaolin 5 parts, calcined talc 5 parts, zinc oxide 4 parts, and matte frit 3 parts. The preparation method of the matte glaze includes the following steps: mixing the raw materials for the matte glaze, water, methylcellulose (thickener), and sodium tripolyphosphate (dispersant) in a mass ratio of 100:30:0.15:0.35, followed by ball milling, sieving, and aging to obtain the matte glaze.

[0044] The second surface region is formed by a positioning adhesive layer and dry granules distributed in the positioning adhesive layer. The dry granules used to form a single second surface region are any one of the first dry granules, second dry granules, third dry granules, fourth dry granules, or fifth dry granules. The particle size distribution of the first dry granules, by mass percentage, includes: 50% 100μm~120μm particles, 40% 60μm~70μm particles, and 10% 5μm~10μm particles; The particle size distribution of the second dry granules, by mass percentage, includes: 40% 100μm~120μm particles, 40% 60μm~70μm particles, and 20% 5μm~10μm particles; The particle size distribution of the third dry granule, by mass percentage, includes: 30% 100μm~120μm particles, 40% 60μm~70μm particles, and 30% 5μm~10μm particles; The particle size distribution of the fourth dry granule, by mass percentage, includes: 20% 100μm~120μm particles, 40% 60μm~70μm particles, and 40% 5μm~10μm particles; The particle size distribution of the fifth dry granule, by mass percentage, includes: 10% 100μm~120μm particles, 40% 60μm~70μm particles, and 50% 5μm~10μm particles.

[0045] The first dry granules, by mass percentage, comprise: 46.86% SiO2, 19.1% Al2O3, 7.98% CaO, 4.01% MgO, 5.05% K2O, 1.99% Na2O, 2.97% BaO, 6.96% SrO, and 5.05% ZnO, with the remainder being loss on ignition and impurities; the silicon-to-aluminum mass ratio of the first dry granules is 2.45:1; the raw materials for the first dry granules, by weight, comprise: 27 parts potassium feldspar, 15 parts sodium feldspar, 9 parts kaolin, 15 parts limestone, 13 parts calcined talc, 5.3 parts zinc oxide, 4 parts barium carbonate, 10 parts strontium carbonate, and 1.7 parts alumina; the preparation method of the first dry granules comprises the following steps: mixing the above-mentioned raw materials for the first dry granules, calcining and melting them at 1450℃ to obtain a glass melt, cooling the molten glass melt with water-cooled metal rollers, crushing it, and obtaining the above-mentioned first dry granules; The second dry granules, by mass percentage, comprise: 49.82% SiO2, 18.01% Al2O3, 8.02% CaO, 2.96% MgO, 5.03% K2O, 3.1% Na2O, 1.93% BaO, 5.97% SrO, and 5.02% ZnO, with the remainder being loss on ignition and impurities; the silicon-to-aluminum mass ratio of the second dry granules is 2.77:1; the raw materials for the second dry granules, by weight, comprise: 27 parts potassium feldspar, 22 parts sodium feldspar, 9 parts kaolin, 15 parts limestone, 10 parts calcined talc, 5.3 parts zinc oxide, 3 parts barium carbonate, and 8.7 parts strontium carbonate; the preparation method of the second dry granules includes the following steps: mixing the above-mentioned raw materials for the second dry granules, calcining and melting them at 1450℃ to obtain a glass melt, cooling the molten glass melt with water-cooled metal rollers, crushing it, and obtaining the above-mentioned second dry granules; The third dry granules, by mass percentage, comprise: 52.87% SiO2, 17.06% Al2O3, 7.1% CaO, 3.03% MgO, 6.93% K2O, 1.0% Na2O, 7.0% SrO, and 4.97% ZnO, with the remainder being loss on ignition and impurities; the silicon-to-aluminum mass ratio of the third dry granules is 3.10:1; the raw materials for the third dry granules, by weight, comprise: 37 parts potassium feldspar, 8 parts sodium feldspar, 9 parts kaolin, 13 parts limestone, 10 parts calcined talc, 7.7 parts quartz, 5.3 parts zinc oxide, and 10 parts strontium carbonate; the preparation method of the third dry granules includes the following steps: mixing the above-mentioned raw materials for the third dry granules, calcining and melting them at 1450℃ to obtain a glass melt, cooling the molten glass melt with water-cooled metal rollers, crushing it, and obtaining the above-mentioned third dry granules; The fourth dry granule, by mass percentage, comprises: 55.89% SiO2, 15.97% Al2O3, 6.0% CaO, 4.03% MgO, 7.98% K2O, 4.93% SrO, and 4.97% ZnO, with the remainder being loss on ignition and impurities; the silicon-to-aluminum mass ratio of the fourth dry granule is 3.50:1; the raw materials of the fourth dry granule, by weight, comprise: 45 parts potassium feldspar, 9 parts kaolin, 11 parts limestone, 13 parts calcined talc, 9.2 parts quartz, 5.3 parts zinc oxide, and 7.5 parts strontium carbonate; the preparation method of the fourth dry granule includes the following steps: mixing the above-mentioned raw materials of the fourth dry granule, calcining and melting them at 1450℃ to obtain a glass melt, cooling the molten glass melt with water-cooled metal rollers, crushing it, and obtaining the above-mentioned fourth dry granule; The fifth dry granule, by mass percentage, comprises: 57.9% SiO2, 15.0% Al2O3, 5.88% CaO, 3.98% MgO, 7.89% K2O, 2.97% SrO, and 5.98% ZnO, with the remainder being loss on ignition and impurities; the silicon-to-aluminum mass ratio of the fifth dry granule is 3.86:1; the raw materials for the fifth dry granule, by weight, comprise: 45 parts potassium feldspar, 9 parts kaolin, 11 parts limestone, 13 parts calcined talc, 11.4 parts quartz, 6.3 parts zinc oxide, and 4.3 parts strontium carbonate; the preparation method of the fifth dry granule includes the following steps: mixing the above-mentioned raw materials for the fifth dry granule, calcining and melting them at 1450℃ to obtain a glass melt, cooling the molten glass melt with water-cooled metal rollers, crushing it, and obtaining the above-mentioned fifth dry granule.

[0046] The preparation method of this digitally controlled multi-faceted textured composite ceramic tile includes the following steps: The brick blank layer (with a moisture content of less than 0.3%) is fed into the first glaze spraying equipment, and a base glaze (with a specific gravity of 1.86 g / cm³) is applied to the surface of the brick blank layer. 3 The application rate is 460g / m 2 ); It enters the first inkjet printing equipment and is printed with colored ink; The second glaze spraying device is used to apply matte glaze (with a specific gravity of 1.2 g / cm³) to multiple pre-defined first surface areas according to a preset digital pattern file. 3 The application rate is 230g / m 2 ); Enter the second printing device and spray positioning adhesive at multiple preset second surface areas according to the preset digital pattern file (the printing grayscale of the positioning adhesive is 20%~90%, and the printing grayscale of the positioning adhesive at at least two preset positions of the second surface area is different). Enter the dry granule application device and apply dry granules (apply the first, second, third, fourth, and fifth dry granules respectively according to the preset position of the second surface area). It is then placed in a kiln for firing (the maximum firing temperature is 1150℃). The ceramic tile is first polished using an elastic grinding block (pressure 3.5 bar, depth 0.08 mm), then polished using a fiber grinding block (pressure 1.5 bar, depth 0.03 mm), and finally lightly brushed using a brush-shaped grinding block (pressure 0.1 bar) to obtain a digitally controlled multi-faceted textured composite ceramic tile.

[0047] The base glaze, by mass percentage, comprises: SiO2 57.17%, Al2O3 22.39%, CaO 3.13%, MgO 0.28%, K2O 2.82%, Na2O 4.0%, BaO 0.91%, ZnO 2.03%, ZrO 24.75%, with the remainder being loss on ignition and impurities.

[0048] It should be noted that after applying the dry granules, a first protective glaze can be applied (the first protective glaze covers both the first and second surface areas). The amount of the first protective glaze applied is 200 g / m². 2 The first protective glaze, by weight percentage, comprises: 61.5% SiO2, 15.1% Al2O3, 11.0% CaO, 5.8% K2O, 1.8% Na2O, and 4.2% ZnO, with the remainder being loss on ignition and impurities. The raw materials of the first protective glaze, by weight, comprise: 45.5 parts potassium feldspar, 17.5 parts quartz, 16 parts wollastonite, 11 parts calcite, 6.5 parts alumina, and 3.5 parts zinc oxide.

[0049] A physical image of the digitally controlled multi-faceted textured composite ceramic tile prepared in Example 1 is shown below. Figure 1 As shown.

[0050] Example 2 A digitally controlled multi-faceted textured composite ceramic tile differs from Example 1 in that: The matte glaze, by weight percentage, comprises: SiO2 49.53%, Al2O3 21.2%, CaO 5.5%, MgO 5.35%, K2O 1.58%, Na2O 3.4%, BaO 4.31%, SrO 0.55%, ZnO 6.13%, with the remainder being loss on ignition and impurities; the raw materials for the matte glaze, by weight, comprise: albite 24 parts, kaolin 12.5 parts, dolomite 8 parts, calcined kaolin 5 parts, calcined talc 5 parts, zinc oxide 4 parts, and matte frit 41.5 parts; The first dry granule, by mass percentage, comprises: SiO2 44.6%, Al2O3 20.0%, CaO 8.61%, MgO 4.27%, K2O 4.63%, Na2O 1.82%, BaO 3.18%, SrO 7.44%, ZnO 5.4%, with the remainder being loss on ignition and impurities; the silicon-to-aluminum mass ratio of the first dry granule is 2.23:1; the raw materials of the first dry granule, by weight, comprise: potassium feldspar 25 parts, sodium feldspar 13.5 parts, kaolin 9.5 parts, limestone 16 parts, calcined talc 13.5 parts, zinc oxide 5.5 parts, barium carbonate 4.5 parts, strontium carbonate 10.5 parts, and alumina 2 parts; The second dry granule, by mass percentage, comprises: SiO2 47.8%, Al2O3 18.89%, CaO 8.56%, MgO 3.12%, K2O 4.7%, Na2O 2.89%, BaO 2.06%, SrO 6.5%, ZnO 5.41%, with the remainder being loss on ignition and impurities; the silicon-to-aluminum mass ratio of the second dry granule is 2.53:1; the raw materials of the second dry granule, by weight, comprise: potassium feldspar 25 parts, sodium feldspar 20 parts, kaolin 10 parts, limestone 16 parts, calcined talc 11 parts, zinc oxide 5.6 parts, barium carbonate 3.2 parts, and strontium carbonate 9.2 parts; The third dry granule, by mass percentage, comprises: SiO2 50.5%, Al2O3 17.9%, CaO 7.66%, MgO 3.16%, K2O 6.43%, Na2O 0.91%, SrO 7.54%, ZnO 5.36%, with the remainder being loss on ignition and impurities; the silicon-to-aluminum mass ratio of the third dry granule is 2.82:1; the raw materials of the third dry granule, by weight, comprise: potassium feldspar 35 parts, sodium feldspar 7 parts, kaolin 10 parts, limestone 13.5 parts, calcined talc 11 parts, quartz 7 parts, zinc oxide 5.5 parts, and strontium carbonate 11 parts; The fourth dry granule, by mass percentage, comprises: SiO2 53.8%, Al2O3 16.91%, CaO 6.53%, MgO 4.34%, K2O 7.48%, SrO 5.35%, ZnO 5.36%, with the remainder being loss on ignition and impurities; the silicon-to-aluminum mass ratio of the fourth dry granule is 3.18:1; the raw materials of the fourth dry granule, by weight, comprise: potassium feldspar 43.5 parts, kaolin 10 parts, limestone 11 parts, calcined talc 14 parts, quartz 8 parts, zinc oxide 5.5 parts, and strontium carbonate 8 parts; The fifth dry granule, by mass percentage, comprises: 55.5% SiO2, 15.9% Al2O3, 6.47% CaO, 4.67% MgO, 7.36% K2O, 3.26% SrO, and 6.48% ZnO, with the remainder being loss on ignition and impurities; the silicon-to-aluminum mass ratio of the fifth dry granule is 3.49:1; the raw materials of the fifth dry granule, by weight, comprise: 42 parts potassium feldspar, 10 parts kaolin, 12 parts limestone, 14 parts calcined talc, 10.5 parts quartz, 7 parts zinc oxide, and 4.5 parts strontium carbonate.

[0051] Everything else is the same as in Example 1.

[0052] Example 3 A digitally controlled multi-faceted textured composite ceramic tile differs from Example 1 in that: The matte glaze, by weight percentage, includes: SiO2 53.5%, Al2O3 19.2%, CaO 5.53%, MgO 5.42%, K2O 1.72%, Na2O 3.94%, BaO 3.92%, SrO 0.47%, ZnO 5.71%, with the remainder being loss on ignition and impurities; the raw materials for the matte glaze, by weight, include: albite 28 parts, kaolin 12 parts, dolomite 8 parts, calcined kaolin 5 parts, calcined talc 5 parts, zinc oxide 4 parts, and matte frit 38 parts.

[0053] The first dry granule, by mass percentage, comprises: SiO2 48.6%, Al2O3 18.1%, CaO 7.7%, MgO 3.87%, K2O 5.36%, Na2O 2.08%, BaO 2.8%, SrO 6.62%, ZnO 4.83%, with the remainder being loss on ignition and impurities; the silicon-to-aluminum mass ratio of the first dry granule is 2.69:1; the raw materials of the first dry granule, by weight, comprise: potassium feldspar 29 parts, sodium feldspar 16.5 parts, kaolin 8.5 parts, limestone 14 parts, calcined talc 12.5 parts, zinc oxide 5 parts, barium carbonate 3.5 parts, strontium carbonate 9.5 parts, and alumina 1.5 parts; The second dry granule, by mass percentage, comprises: SiO2 51.8%, Al2O3 17.05%, CaO 7.62%, MgO 2.83%, K2O 5.21%, Na2O 3.22%, BaO 1.82%, SrO 5.67%, ZnO 4.71%, with the remainder being loss on ignition and impurities; the silicon-to-aluminum mass ratio of the second dry granule is 3.04:1; the raw materials of the second dry granule, by weight, comprise: potassium feldspar 29 parts, sodium feldspar 24 parts, kaolin 8 parts, limestone 14 parts, calcined talc 9 parts, zinc oxide 5 parts, barium carbonate 2.7 parts, and strontium carbonate 8.3 parts; The third dry granule, by mass percentage, comprises: SiO2 54.8%, Al2O3 16.0%, CaO 6.73%, MgO 2.82%, K2O 7.22%, Na2O 1.08%, SrO 6.62%, ZnO 4.71%, with the remainder being loss on ignition and impurities; the silicon-to-aluminum mass ratio of the third dry granule is 3.43:1; the raw materials of the third dry granule, by weight, comprise: potassium feldspar 39.5 parts, sodium feldspar 9 parts, kaolin 8 parts, limestone 12.5 parts, calcined talc 9.5 parts, quartz 7 parts, zinc oxide 5 parts, and strontium carbonate 9.5 parts. The fourth dry granule, by mass percentage, comprises: SiO2 57.8%, Al2O3 15.05%, CaO 5.72%, MgO 3.81%, K2O 8.18%, SrO 4.63%, ZnO 4.7%, with the remainder being loss on ignition and impurities; the silicon-to-aluminum mass ratio of the fourth dry granule is 3.84:1; the raw materials of the fourth dry granule, by weight, comprise: potassium feldspar 48 parts, kaolin 8 parts, limestone 10 parts, calcined talc 12 parts, quartz 10 parts, zinc oxide 5 parts, and strontium carbonate 7 parts; The fifth dry granule, by mass percentage, comprises: 60.1% SiO2, 14.0% Al2O3, 5.55% CaO, 3.63% MgO, 8.26% K2O, 2.75% SrO, and 5.68% ZnO, with the remainder being loss on ignition and impurities; the silicon-to-aluminum mass ratio of the fifth dry granule is 4.29:1; the raw materials of the fifth dry granule, by weight, comprise: 48 parts potassium feldspar, 8 parts kaolin, 10 parts limestone, 12 parts calcined talc, 12.5 parts quartz, 5.7 parts zinc oxide, and 3.8 parts strontium carbonate.

[0054] Everything else is the same as in Example 1.

[0055] Example 4 A digitally controlled multi-faceted textured composite ceramic tile differs from Example 1 in that it further includes multiple recessed third facets disposed on the color pattern layer. Each third facet is formed by a hydrophobic ink layer, a base glaze layer, a color pattern layer, and a matte glaze. The preparation method further includes the following steps: before or after applying the base glaze, hydrophobic ink is sprayed onto the positions of the multiple preset third facets. Everything else is the same as in Example 1.

[0056] Comparative Example 1 A ceramic tile, differing from Example 1 in that all dry particles in the second surface region are first dry particles. Otherwise, it is the same as Example 1.

[0057] Comparative Example 2 A ceramic tile, differing from Example 1 in that all dry particles in the second surface region are second dry particles. Otherwise, it is the same as Example 1.

[0058] A physical image of the ceramic tile produced in Comparative Example 2 is shown below. Figure 2 As shown.

[0059] Comparative Example 3 A ceramic tile, differing from Example 1 in that all dry particles in the second surface area are third dry particles. Otherwise, it is the same as Example 1.

[0060] Comparative Example 4 A ceramic tile, differing from Example 1 in that all dry particles in the second surface region are fourth-order dry particles. Otherwise, it is the same as Example 1.

[0061] A picture of the actual ceramic tile produced in Comparative Example 4 is shown below. Figure 3 As shown.

[0062] Comparative Example 5 A ceramic tile, differing from Example 1 in that all dry particles in the second surface region are fifth-generation dry particles. Otherwise, it is the same as Example 1.

[0063] Comparative Example 6 A type of ceramic tile, differing from Example 1 in that it is not polished or brushed. Otherwise, it is the same as Example 1.

[0064] Comparative Example 7 A type of ceramic tile differs from Example 1 in that the inkjet grayscale of the positioning adhesive is any fixed value between 20% and 90%, and the inkjet grayscale of the positioning adhesive is the same for all second surface areas. Everything else is the same as in Example 1.

[0065] Comparative Example 8 A ceramic tile differs from Example 1 in that the particle size distribution of all dry particles (first dry particle, second dry particle, third dry particle, fourth dry particle, and fifth dry particle) comprises 100% 100% 100μm~120μm particles by mass percentage. Everything else is the same as in Example 1.

[0066] Comparative Example 9 A ceramic tile differs from Example 1 in that the particle size distribution of all dry particles (first dry particle, second dry particle, third dry particle, fourth dry particle, and fifth dry particle) comprises 100% 60μm to 70μm particles by mass percentage. Everything else is the same as in Example 1.

[0067] Comparative Example 10 A ceramic tile differs from Example 1 in that the particle size distribution of all dry particles (first dry particle, second dry particle, third dry particle, fourth dry particle, and fifth dry particle) comprises 100% 5μm to 10μm particles by mass percentage. Everything else is the same as in Example 1.

[0068] Comparative Example 11 A ceramic tile, differing from Example 1 in that: the particle size distribution of the first dry granules, by mass percentage, comprises: 10% 100μm~120μm particles, 40% 60μm~70μm particles, and 50% 5μm~10μm particles; The particle size distribution of the second dry granules, by mass percentage, includes: 20% 100μm~120μm particles, 40% 60μm~70μm particles, and 40% 5μm~10μm particles; The particle size distribution of the third dry granule, by mass percentage, includes: 30% 100μm~120μm particles, 40% 60μm~70μm particles, and 30% 5μm~10μm particles; The particle size distribution of the fourth dry granule, by mass percentage, includes: 40% 100μm~120μm particles, 40% 60μm~70μm particles, and 20% 5μm~10μm particles; The particle size distribution of the fifth dry granule, by mass percentage, includes: 50% 100μm~120μm particles, 40% 60μm~70μm particles, and 10% 5μm~10μm particles.

[0069] Everything else is the same as in Example 1.

[0070] Comparative Example 12 A ceramic tile, differing from Example 1 in that: the particle size distribution of the first dry granules, by mass percentage, comprises: 30% 100μm~120μm particles, 40% 60μm~70μm particles, and 30% 5μm~10μm particles; The particle size distribution of the second dry granules, by mass percentage, includes: 30% 100μm~120μm particles, 40% 60μm~70μm particles, and 30% 5μm~10μm particles; The particle size distribution of the third dry granule, by mass percentage, includes: 30% 100μm~120μm particles, 40% 60μm~70μm particles, and 30% 5μm~10μm particles; The particle size distribution of the fourth dry granule, by mass percentage, includes: 30% 100μm~120μm particles, 40% 60μm~70μm particles, and 30% 5μm~10μm particles; The particle size distribution of the fifth dry granule, by mass percentage, includes: 30% 100μm~120μm particles, 40% 60μm~70μm particles, and 30% 5μm~10μm particles.

[0071] Everything else is the same as in Example 1.

[0072] Performance testing The performance of the digitally controlled multi-faceted textured composite ceramic tiles prepared in Examples 1-4 and the ceramic tiles prepared in Comparative Examples 1-12 were tested, specifically including surface gloss and surface effect tests. Gloss was tested using a gloss meter, and surface effect was tested by observation and touch. The specific test results are shown in Table 1.

[0073] Table 1 As can be seen from the test data in Table 1 above, the digitally controlled multi-faceted textured composite ceramic tile prepared using the technical solution of this invention, through the superposition of various processes and materials, has multiple process areas on the product surface that have rich differences in depth, gloss and touch. It has both a dark and deep matte effect and a delicate textured surface, as well as a variety of gloss expressions from soft light to high gloss, making the surface visual and tactile effects of each tile rich.

[0074] Referring to Table 1 and the data from Example 1 and Comparative Example 1, it can be seen that all the dry particles in the second surface area are the first dry particles, resulting in a soft light effect of 15° gloss on the tile surface formed by the first dry particles at different preset positions. There are no other gloss effects, which leads to a single gloss level in the dry particle area (second surface area) of the tile surface. Although a slight change in gloss can be produced by polishing later, the change is small and there is no rich and large range of gloss changes, resulting in a poor overall visual effect.

[0075] Referring to Table 1 and the data from Example 1 and Comparative Example 2, it can be seen that when all the dry particles in the second surface region are the second dry particles, the surface of the tile forms a soft gloss effect of 28° caused by the second dry particles at different preset positions. There are no other gloss effects, resulting in a uniform gloss in the dry particle area (second surface region) of the tile surface. Although a slight change in gloss can be produced by subsequent polishing, the change is small and there is no rich and large range of gloss variation, resulting in a poor overall visual effect. Referring to Table 1 and the data from Example 1 and Comparative Example 3, it can be seen that all the dry particles in the second surface area are third dry particles, resulting in a low to medium gloss effect of 45° formed by the third dry particles at different preset positions on the tile surface. There are no other gloss effects, which leads to a single gloss level in the dry particle area (second surface area) of the tile surface. Although a slight change in gloss can be produced by polishing later, the change is small and there is no rich and large range of gloss changes, resulting in a poor overall visual effect.

[0076] Referring to Table 1 and the data from Example 1 and Comparative Example 4, it can be seen that all the dry particles in the second surface area are the fourth type of dry particles. This results in a medium gloss effect of 63° formed by the fourth dry particles at different preset positions on the tile surface. There are no other gloss effects, which leads to a single gloss level in the dry particle area (second surface area) of the tile surface. Although a slight change in gloss can be produced by polishing later, the change is small and there is no rich and large range of gloss changes, resulting in a poor overall visual effect.

[0077] Referring to Table 1 and the data from Example 1 and Comparative Example 5, it can be seen that all the dry particles in the second surface area are the fifth dry particles. This results in a medium-high gloss effect of 78° formed by the fifth dry particles at different preset positions on the tile surface. There are no other gloss effects, which leads to a single gloss level in the dry particle area (second surface area) of the tile surface. Although a slight change in gloss can be produced by polishing later, the change is small and there is no rich and large range of gloss changes, resulting in a poor overall visual effect.

[0078] Referring to Table 1 and the data from Example 1 and Comparative Example 6, it can be seen that when the surface of the tile is not polished, the gloss of the higher areas of the raised positions formed by the dry particles does not change. Therefore, the gloss is not improved by the polishing of the elastic abrasive block, and there is no smoothness and fineness tactile effect produced by the polishing of the fiber abrasive block and the brush polishing of the brush-type abrasive block. As a result, the visual and tactile effects of the tile surface are poor.

[0079] Referring to Table 1 and the data from Example 1 and Comparative Example 7, it can be seen that when the printing grayscale of the positioning adhesive is set to only one fixed value, the height of the raised areas formed by the dry granules will be basically the same, and there will be no raised areas of varying heights. As a result, all raised areas will be polished, but not the higher raised areas will be polished while the lower raised areas will not be polished. The polished effect is uniform, resulting in poor visual and tactile effects on the tile surface.

[0080] Referring to Table 1 and the data from Example 1 and Comparative Example 8, it can be seen that all dry particles are coarse particles of the same size, and there is no change in particle gradation gradient, which leads to an overall weakening of the gloss of the second surface region and a smaller range of gloss in the second surface region, resulting in a generally poor visual and tactile effect.

[0081] Referring to Table 1 and the data from Example 1 and Comparative Example 9, it can be seen that all dry particles are medium-sized particles of the same particle size, and there is no change in particle gradation gradient, which leads to an overall decrease in the gloss of the second surface region, and the range of gloss of the second surface region becomes smaller, resulting in a generally poor visual and tactile effect.

[0082] Referring to Table 1 and the data from Example 1 and Comparative Example 10, it can be seen that all dry particles are fine particles of the same size, and there is no change in particle gradation gradient, which leads to an overall increase in the gloss of the second surface region, and the range of gloss of the second surface region becomes smaller, resulting in a generally poor visual and tactile effect.

[0083] Referring to Table 1 and the data from Example 1 and Comparative Example 11, it can be seen that in the first to fifth dry granules, the proportion of fine particles (5μm~10μm) gradually decreases from 50% to 10%, while the proportion of coarse particles (100μm~120μm) increases from 10% to 50%. Although a particle size distribution gradient is formed, it does not match the effect formed by the silicon-aluminum mass ratio. This results in an increase in the gloss of the second surface regions formed by the first and second dry granules, while a decrease in the gloss of the second surface regions formed by the fourth and fifth dry granules. Consequently, the range of gloss between the second surface regions formed by the first to fifth dry granules becomes smaller, resulting in a generally poor visual and tactile effect.

[0084] Referring to Table 1 and the data from Example 1 and Comparative Example 12, it can be seen that in the first to fifth dry granules, the proportions of coarse particles (100μm~120μm) and fine particles (5μm~10μm) are each 30%, and no particle size gradient is formed. The melting process of each dry particle is basically similar, and the effect formed by the silicon-aluminum mass ratio is not matched. As a result, the gloss of the second surface regions formed by the first and second dry granules increases, while the gloss of the second surface regions formed by the fourth and fifth dry granules decreases. This leads to a smaller range of gloss between the second surface regions formed by the first to fifth dry granules, resulting in a generally poor visual and tactile effect.

[0085] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature.

[0086] The above description is only a preferred embodiment of the present invention. It should be noted that those skilled in the art can make several improvements and additions without departing from the method of the present invention, and these improvements and additions should also be considered within the scope of protection of the present invention.

Claims

1. A composite ceramic tile with digitally controlled multi-faceted texture, characterized in that, It sequentially includes a brick blank layer, a base glaze layer, a color pattern layer, and surface areas distributed on the color pattern layer, wherein the surface areas include multiple first surface areas and multiple second surface areas; The first surface region is formed of a matte glaze; The second surface area is formed by a positioning adhesive layer and dry particles distributed in the positioning adhesive layer, wherein the dry particles used to form a single second surface area are any one of a first dry particle, a second dry particle, a third dry particle, a fourth dry particle, or a fifth dry particle; The silicon-to-aluminum mass ratio of the first dry granules is (2.18~2.78):1; The silicon-to-aluminum mass ratio of the second dry granule is (2.46~3.16):1; The silicon-to-aluminum mass ratio of the third dry granule is (2.73~3.52):1; The silicon-to-aluminum mass ratio of the fourth dry granule is (3.10~4.01):1; The silicon-to-aluminum mass ratio of the fifth dry granule is (3.42~4.39):1; The particle size distribution of the first dry granules, by mass percentage, comprises: 50% 100μm~120μm particles, 40% 60μm~70μm particles, and 10% 5μm~10μm particles; The particle size distribution of the second dry granules, by mass percentage, comprises: 40% 100μm~120μm particles, 40% 60μm~70μm particles, and 20% 5μm~10μm particles; The particle size distribution of the third dry granules, by mass percentage, comprises: 30% 100μm~120μm particles, 40% 60μm~70μm particles, and 30% 5μm~10μm particles; The particle size distribution of the fourth dry granules, by mass percentage, comprises: 20% 100μm~120μm particles, 40% 60μm~70μm particles, and 40% 5μm~10μm particles; The particle size distribution of the fifth dry granule, by mass percentage, includes: 10% 100μm~120μm particles, 40% 60μm~70μm particles, and 50% 5μm~10μm particles.

2. The composite ceramic tile with digitally controlled multi-faceted texture as described in claim 1, characterized in that, The first dry granules, by mass percentage, comprise: SiO2 44.5%~49.5%, Al2O3 17.8%~20.4%, CaO 7.2%~8.8%, MgO 3.6%~4.4%, K2O 4.6%~5.6%, Na2O 1.8%~2.2%, BaO 2.7%~3.3%, SrO 6.3%~7.6%, and ZnO 4.6%~5.6%. The second dry granules, by mass percentage, comprise: SiO2 47.5%~52.7%, Al2O3 16.7%~19.3%, CaO 7.2%~8.8%, MgO 2.7%~3.3%, K2O 4.6%~5.6%, Na2O 2.8%~3.4%, BaO 1.8%~2.1%, SrO 5.5%~6.6%, and ZnO 4.5%~5.5%. The third dry granule comprises, by mass percentage: SiO2 50.0%~55.6%, Al2O3 15.8%~18.3%, CaO 6.4%~7.8%, MgO 2.7%~3.3%, K2O 6.3%~7.6%, Na2O 0.9%~1.1%, SrO 6.3%~7.7%, and ZnO 4.5%~5.5%; The fourth dry granule comprises, by mass percentage: SiO2 53.3%~59.0%, Al2O3 14.7%~17.2%, CaO 5.5%~6.7%, MgO 3.6%~4.4%, K2O 7.3%~8.9%, SrO 4.5%~5.5%, and ZnO 4.5%~5.5%. The fifth dry granule comprises, by mass percentage: SiO2 55.0%~61.0%, Al2O3 13.9%~16.1%, CaO 5.4%~6.6%, MgO 3.6%~4.4%, K2O 7.2%~8.7%, SrO 2.7%~3.3%, and ZnO 5.4%~6.6%.

3. The composite ceramic tile with digitally controlled multi-faceted texture as described in claim 1, characterized in that, The raw materials for the matte glaze, by weight, include: 24-28 parts of albite, 10.5-13.5 parts of kaolin, 7-9 parts of dolomite, 4.5-5.5 parts of calcined kaolin, 4.5-5.5 parts of calcined talc, 3.5-4.5 parts of zinc oxide, and 37-43 parts of matte frit.

4. The composite ceramic tile with digitally controlled multi-faceted texture as described in claim 1, characterized in that, The surface area also includes a plurality of recessed third surface areas disposed on the color pattern layer, the third surface areas being formed by a hydrophobic ink layer, the base glaze layer, the color pattern layer and the matte glaze.

5. The composite ceramic tile with digitally controlled multi-faceted texture as described in claim 1, characterized in that, A first protective glaze layer is also provided on the surface area.

6. A method for preparing a composite ceramic tile with digitally controlled multi-faceted texture as described in any one of claims 1-3, characterized in that, The base glaze layer is formed by a base glaze, the color pattern layer is formed by color ink, and the positioning adhesive layer is formed by positioning adhesive; the preparation method includes the following steps: The base glaze is applied to the surface of the brick blank, the color ink is sprayed, and then the matte glaze is applied to the positions of a plurality of preset first surface areas according to the preset digital pattern file. Subsequently, the positioning adhesive is sprayed to the positions of a plurality of preset second surface areas according to the preset digital pattern file, and the dry granules are applied to the positions of a plurality of preset second surface areas according to the preset digital pattern file. The brick is then fired and polished to obtain the digitally controlled multi-surface texture composite ceramic tile. The grayscale of the positioning adhesive is 20% to 90%, and the grayscale of the positioning adhesive at at least two preset positions of the second surface area is different. The polishing pressure is 1 bar to 4 bar, and the polishing depth is 0.02 mm to 0.1 mm.

7. The method for preparing composite surface ceramic tiles with digitally controlled multi-faceted texture according to claim 6, characterized in that, The polishing process uses elastic grinding blocks and fiber grinding blocks.

8. The method for preparing composite ceramic tiles with digitally controlled multi-faceted texture according to claim 7, characterized in that, Before or after polishing, brush polishing is performed using a brush-type abrasive block, and the pressure of brush polishing is 0 bar to 0.5 bar.

9. The method for preparing composite ceramic tiles with digitally controlled multi-faceted texture according to claim 6, characterized in that, The surface area also includes a plurality of recessed third surface areas disposed on the color pattern layer, the third surface areas being formed by a hydrophobic ink layer, the base glaze layer, the color pattern layer and the matte glaze; The method for preparing the composite surface ceramic tile with digitally controlled multi-faceted texture further includes the following steps: before or after applying the base glaze, spraying hydrophobic ink at the positions of multiple preset third faceted areas according to a preset digital pattern file.

10. The method for preparing composite ceramic tiles with digitally controlled multi-faceted texture according to claim 6, characterized in that, A first protective glaze layer is also provided on the surface area, and the first protective glaze layer is formed by the first protective glaze. The preparation method of the digitally controlled multi-faceted textured composite ceramic tile further includes the following steps: after applying the dry granules, the first protective glaze is applied.

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