Multi-matrix stereoscopic distributed rainbow crystal grain ceramic tile and preparation method thereof

Abstract

The application discloses a kind of multi-matrix stereoscopic distribution's rainbow crystal grain ceramic tile and preparation method, belong to building ceramic technical field.The ceramic tile of the application includes body layer, face glaze layer, pattern layer, glue pattern layer, rainbow crystal grain layer, protective glaze layer, transparent dry grain layer and glue protection layer in order from bottom to top.Rainbow crystal grain layer is mixed by rainbow crystal grain and transparent dry grain according to certain proportion, and protective glaze layer is mixed by protective glaze and glue.Chemical composition, glazing amount and particle grading of each layer are all optimized design.Preparation method includes ceramic body preparation, multi-layer application, inkjet printing, firing and subsequent processing and the like.This technology aims to solve the contradiction of existing stone-like material technology in simulation degree, performance and cost, and provides an industrialized production scheme with high simulation degree, excellent physical properties and environmental friendliness.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building materials, in particular to a multi-matrix three-dimensional distributed rainbow crystal grain ceramic tile and a preparation method thereof. BACKGROUND

[0002] Natural luxury stone is widely used in the fields of architectural decoration, interior design and landscape engineering due to its unique texture, color and texture. For example, natural agate often has a fantasy effect, and common examples include rainbow agate and fire agate. Rainbow agate has a fine layered structure, and when light passes through the thin layers of the strip, diffraction and interference occur, resulting in a multi-color phenomenon and forming a fantasy effect similar to a rainbow.

[0003] However, there are many defects in the mining, processing and use of natural luxury stone with a fantasy effect. First, stone deposits are non-renewable resources, and overexploitation can lead to ecological destruction and resource depletion. Second, the processing cost of natural luxury stone is high, including high energy consumption in cutting, polishing and other processes, and low yield. In addition, natural luxury stone also has performance limitations, such as difficulty in transportation and installation due to high density, high porosity and easy staining in some varieties, and poor frost resistance. At the same time, the risk of exceeding the standard of radioactive elements in natural luxury stone needs to be detected additionally.

[0004] To replace natural luxury stone, existing technologies for simulating natural luxury stone mainly include artificial synthetic stone, paint stone and cement-based composite material. However, these technologies also have their own shortcomings. Artificial synthetic stone such as resin-based artificial stone is prone to yellowing and has poor weather resistance, and is highly flammable. Paint stone such as real stone paint has a single texture, insufficient wear resistance, and a short service life, making it difficult to meet the high-end decoration requirements. Although cement-based composite materials have lower costs, they have high self-weight, insufficient surface fineness, and are difficult to reproduce the fantasy effect of natural luxury stone.

[0005] The current technical pain points lie in the contradiction between simulation and performance. High-simulation texture often relies on complex processes, leading to a sharp increase in cost, while low-cost solutions are difficult to reproduce the three-dimensional level of natural luxury stone. Existing forming technologies cannot simultaneously achieve large-size panel preparation and fine texture reproduction, restricting the efficiency of engineering applications. Therefore, it is urgent to develop a preparation technology for simulating natural luxury stone that has high-simulation fantasy effect, excellent physical properties, is environmentally friendly, and is suitable for industrial production. SUMMARY

[0006] Therefore, in order to solve one of the above technical problems, the present application provides a multi-matrix three-dimensional distributed rainbow crystal grain ceramic tile and a preparation method thereof, and the specific technical solutions are as follows:

[0007] A multi-matrix three-dimensional distributed rainbow crystal grain ceramic tile, which comprises, from bottom to top, a body layer, a surface glaze layer, a pattern layer, a glue pattern layer, a rainbow crystal grain layer, a protective glaze layer, a transparent dry grain layer, and a glue protection layer in sequence.

[0008] The rainbow crystal grain layer is prepared by mixing the rainbow crystal grains and the transparent dry grains in a mass ratio of 1: (0.5-0.8).

[0009] The rainbow crystal grain comprises the following components in percentage by mass: SiO2: 25-40%, ZrO2: 60-75%.

[0010] The rainbow crystal grain has a grading distribution as follows: 60 mesh or more: none, 60-80 mesh: 35-50%, 80-100 mesh: 15-30%, 100-120 mesh: 8-18%, 120-150 mesh: 5-15%, 150-200 mesh: 5-15%, and 200 mesh or less: 1-5%.

[0011] The transparent dry grain layer is prepared by the transparent dry grains, which are the same as the transparent dry grains in the rainbow crystal grain layer.

[0012] The transparent dry grain comprises the following chemical components in percentage by mass:

[0013] SiO2: 55-65%, Al2O3: 5-10%, CaO: 8-15%, MgO: 0-2%, K2O: 3-8%, Na2O: 0.5-4%, ZnO: 8-15%, and loss on ignition: 1-3%.

[0014] The transparent dry grain has a grading distribution as follows: 30 mesh or more: none, 30-60 mesh: 20-40%, 60-80 mesh: 15-30%, 80-100 mesh: 18-30%, 100-120 mesh: 10-25%, and 120 mesh or less: 0-10%.

[0015] Further, the protective glaze layer is prepared by mixing the protective glaze and the glue in a glaze slurry in a mass ratio of (0.3-0.5): 1.

[0016] The specific gravity of the glaze slurry is 1.05-1.2 g / cm 3 , and the application amount is 150-200 g / m 2 .

[0017] The protective glaze comprises the following components in percentage by mass:

[0018] SiO2: 60~70%, Al2O3: 8~15%, CaO: 5~10%, MgO: 0.5~4%, K2O: 0.5~3%, Na2O: 4~8%, ZnO: 2~5%, SrO: 1~3%, loss on ignition: 2~5%.

[0019] Further, the glue includes the following ingredients in the following mass percentages:

[0020] Thickening agent: 15~25%, dispersing agent: 5~15%, wetting agent: 5~15%, leveling agent: 5~15%, defoaming agent: 3~7%, water: 35~48%.

[0021] Further, the face glaze layer is prepared from a face glaze, and the specific gravity of the face glaze is 1.75~1.85 g / cm 3 , and the glazing amount is 450~550 g / m 2 .

[0022] Further, the face glaze includes the following ingredients in the following mass percentages:

[0023] SiO2: 55~65%, Al2O3: 18~26%, CaO: 1~3%, K2O: 2~5%, Na2O: 2~4%, ZnO: 0.7~2%, ZrO2: 3~8%, loss on ignition: 0.8~2%.

[0024] Further, the glue pattern layer is formed according to the glue of a set texture color;

[0025] The gray scale of the glue pattern changes regularly in a gradient manner, and the accumulation of dry particles also changes regularly in a gradient increasing and / or decreasing manner, and the rainbow effect of the ceramic tile surface after firing presents a multi-matrix three-dimensional distribution.

[0026] Further, the gray scale of the glue pattern changes in a range of 40%~100%, and the glue application amount is 35~55 g / m 2 .

[0027] Further, the application amount of the mixed dry particles is 150~200 g / m 2 .

[0028] The rainbow crystal particles are obtained by crushing ore, and the initial melting point is 1250℃~1280℃.

[0029] Further, in the transparent dry particle layer, the application amount of the transparent dry particles is 700~950 g / m 2 , and the initial melting point of the transparent dry particles is 1130℃~1180℃.

[0030] In addition, the application also provides a preparation method of the multi-matrix three-dimensional distributed rainbow crystal grain ceramic tile, and the preparation method comprises the following steps:

[0031] S1, after the green body powder is pressed and treated, drying is carried out at 150-200 DEG C for 30-45 min, so that the green body with a water content of 0.5-0.7 is obtained;

[0032] S2, a surface glaze is sprayed on the surface of the green body to form a surface glaze layer;

[0033] S3, a preset pattern and a glue pattern are printed on the surface glaze layer by inkjet printing to form a pattern layer and a glue pattern layer;

[0034] S4, the mixed dry grains formed by mixing the rainbow crystal grains and the transparent dry grains are applied on the glue pattern layer, and the dry grains not adhered to the glue pattern are recovered through an absorption system to form a rainbow crystal grain layer;

[0035] S5, the glaze slurry formed by mixing the protective glaze and the glue is sprayed on the rainbow crystal grain layer to form a protective glaze layer;

[0036] S6, the transparent dry grains are applied on the protective glaze layer to form a transparent dry grain layer;

[0037] S7, the glue is sprayed on the transparent dry grain layer to fix the dry grains, the dry grains are subjected to drying treatment of a drying kiln to form a glue protection layer, the dry grains are protected from being sucked away, and then the firing temperature of a roller kiln is 1170-1210 DEG C, the holding time is 10-20 min, the polished, edge-ground and packed tile body is obtained, and the multi-matrix three-dimensional distributed rainbow crystal grain ceramic tile is obtained.

[0038] Compared with the prior art, the application has the following beneficial effects:

[0039] 1. The chemical composition, particle size distribution and process of the ceramic tile are optimized, the appearance of the prepared ceramic tile is rich in color and excellent in level effect, the surface gloss of the ceramic tile is high, the texture is delicate, the simulation degree is extremely high, the texture and color of the natural luxury stone can be perfectly simulated, meanwhile, the wear resistance, stain resistance and anti-skid performance of the ceramic tile are significantly improved, so that the ceramic tile is more durable and easy to clean in use.

[0040] 2. The preparation method is simple in process and easy to operate, is suitable for large-scale industrial production, and has high economic benefits and market prospects. BRIEF DESCRIPTION OF DRAWINGS

[0041] Figure 1 is a structural schematic view of a multi-matrix three-dimensional distributed rainbow crystal grain ceramic tile in the embodiment 1 of the application;

[0042] Figure 2An electron micrograph of the rainbow crystal grains in Example 1 after high-temperature calcination at 1250°C;

[0043] Figure 3 A schematic diagram of the "rainbow effect" of the multi-matrix three-dimensional distributed rainbow crystal grain ceramic tile prepared in Example 1 under high magnification of a microscope;

[0044] Figure 4 A vertical reflection photograph of the multi-matrix three-dimensional distributed rainbow crystal grain ceramic tile prepared in Example 1 under low magnification of a microscope;

[0045] Figure 5 An inclined angle photograph of the multi-matrix three-dimensional distributed rainbow crystal grain ceramic tile prepared in Example 1 under low magnification of a microscope;

[0046] Figure 6 A schematic diagram of the multi-matrix three-dimensional distributed rainbow crystal grain ceramic tile prepared in Example 1;

[0047] Figure 7 A local enlarged photograph of the multi-matrix three-dimensional distributed rainbow crystal grain ceramic tile prepared in Example 1;

[0048] Figure 8 A photograph of the ceramic tile prepared in Comparative Example 2;

[0049] Figure 9 A photograph of the ceramic tile prepared in Comparative Example 3;

[0050] Figure 10 A photograph of the ceramic tile prepared in Comparative Example 4;

[0051] Figure 11 A photograph of the ceramic tile prepared in Comparative Example 6;

[0052] BRIEF DESCRIPTION OF DRAWINGS

[0053] 100 - body; 200 - surface glaze layer; 301 - pattern layer; 302 - glue pattern layer, 303 - rainbow crystal grain layer; 304 - protective glaze layer; 305 - transparent dry grain layer, 400 - glue protective layer. DETAILED DESCRIPTION

[0054] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in combination with its embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the protection scope of the present application.

[0055] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0056] A multi-matrix three-dimensional distributed rainbow crystal ceramic tile in an embodiment of the application comprises, from bottom to top, a body layer, a surface glaze layer, a pattern layer, a glue pattern layer, a rainbow crystal layer, a protective glaze layer, a transparent dry particle layer, and a glue protective layer.

[0057] The rainbow crystal layer is prepared by mixing the rainbow crystal and the transparent dry particle in a mass ratio of 1: (0.5-0.8).

[0058] The rainbow crystal comprises the following components in mass percentage: SiO2: 25-40%, ZrO2: 60-75%.

[0059] The rainbow crystal has a grading of: 60 mesh or more: none, 60-80 mesh: 35-50%, 80-100 mesh: 15-30%, 100-120 mesh: 8-18%, 120-150 mesh: 5-15%, 150-200 mesh: 5-15%, and 200 mesh or less: 1-5%.

[0060] The transparent dry particle layer is prepared by the transparent dry particle, which is the same as the transparent dry particle in the rainbow crystal layer.

[0061] The preferred rainbow crystal in the application has a high melting point and is mainly composed of crushed zirconium silicate ore, which does not melt during the firing of the ceramic tile and maintains the original irregular morphology after firing. The rainbow color effect is caused by the different expansion coefficients of the zirconium silicate particles and the glaze glass phase during the firing process, the stress caused by the shrinkage difference in the glaze during cooling, the change of the refractive index around the zirconium silicate particles, and the formation of diffraction, interference, and reflection stripes, which form a rainbow-like color effect.

[0062] The transparent dry particle is mixed with the rainbow crystal in the application, which helps to disperse the rainbow crystal and separate the rainbow crystal. On the one hand, it avoids the problem of excessive stress caused by the mutual stacking of the rainbow crystal, and on the other hand, the melting point of the transparent dry particle is relatively low compared to the rainbow crystal, which can prevent the problem of voids or pores caused by the sintering between the rainbow crystals. Since the melting point of the rainbow crystal is relatively high, it almost does not melt at normal firing temperature, so the use of mixed transparent dry particles can effectively solve the problem of poor stain resistance caused by the dense and non-melting of single rainbow crystal at high temperature.

[0063] The transparent dry particles of the present application are preferably closer to the expansion coefficient of the rainbow crystal particles, which can achieve better matching effect and effectively avoid the deformation and instability of the brick in the later use. Through this improvement, the performance of the brick is more stable, and the service life is also prolonged, thereby ensuring the user experience.

[0064] In addition, the rainbow crystal particles are evenly distributed on the surface of the brick body by using a digital inkjet glue and cloth machine. First, the pattern is finely processed in the computer software, and the glue pattern is extracted, and then it is preset in the digital inkjet machine. The inkjet machine then prints the preset pattern, which presents a stepped increasing or decreasing effect according to the different inkjet gray scale values. Secondly, the particle size distribution of the mixed dry particles is in the range of 30 to 200 meshes, and since the rainbow crystal particles are composed of different particle sizes, this combination enables the rainbow crystal particles to present a multi-matrix three-dimensional distribution effect. This effect makes the surface look more three-dimensional, as if it has a kind of embossing texture.

[0065] In one embodiment, the protective glaze layer is prepared from a glaze slurry mixed with glue in a mass ratio of (0.3-0.5):1;

[0066] The specific gravity of the glaze slurry is 1.05-1.2 g / cm 3 , and the application amount is 150-200 g / m 2 ;

[0067] The protective glaze comprises the following components by mass percentage:

[0068] SiO2: 60-70%, Al2O3: 8-15%, CaO: 5-10%, MgO: 0.5-4%, K2O: 0.5-3%, Na2O: 4-8%, ZnO: 2-5%, SrO: 1-3%, loss on ignition: 2-5%.

[0069] The protective glaze layer in the present application can greatly improve the color performance of the inkjet printed pattern, ensuring its brightness and clarity. The protective glaze layer is applied by spraying, which does not damage the inkjet pattern on the brick body and can effectively fix the rainbow crystal particles applied in front. In addition, the protective glaze layer can effectively block the potential influence of the transparent dry particles used in the subsequent process on the color of the printed pattern, ensuring the stability and durability of the printing effect. Through this protective measure, the printed pattern can better resist environmental interference and maintain its original aesthetic and color saturation.

[0070] In one embodiment, the glue comprises the following raw materials by mass percentage:

[0071] Thickening agent: 15-25%, dispersing agent: 5-15%, wetting agent: 5-15%, leveling agent: 5-15%, defoaming agent: 3-7%, water: 35-48%.

[0072] In one embodiment, the surface glaze layer is prepared from a surface glaze, and the specific gravity of the surface glaze is 1.75-1.85 g / cm 3 , and the glazing amount is 450-550 g / m 2 ,

[0073] In one embodiment, the surface glaze includes the following ingredients by mass percentage:

[0074] SiO2: 55-65%, Al2O3: 18-26%, CaO: 1-3%, K2O: 2-5%, Na2O: 2-4%, ZnO: 0.7-2%, ZrO2: 3-8%, loss on ignition: 0.8-2%.

[0075] In one embodiment, the glue pattern layer is formed according to the set texture color extraction glue;

[0076] The gray scale of the glue pattern changes regularly in a gradient manner, and the accumulation of dry particles also changes regularly in a gradient increasing and / or decreasing manner, and the brick surface rainbow effect of the fired ceramic tile presents a multi-matrix three-dimensional distribution.

[0077] In one embodiment, the gray scale of the glue pattern changes in the range of 40-100%, and the glue application amount is 35-55 g / m 2 .

[0078] In one embodiment, the application amount of the mixed dry particles is 150-200 g / m 2 ;

[0079] The rainbow crystal particles are obtained by crushing ore, and the initial melting point is 1250-1280°C.

[0080] In one embodiment, in the transparent dry particle layer, the application amount of the transparent dry particles is 700-950 g / m 2 , and the initial melting point of the transparent dry particles is 1130-1180°C.

[0081] The transparent dry particles include the following chemical components by mass percentage:

[0082] SiO2: 55-65%, Al2O3: 5-10%, CaO: 8-15%, MgO: 0-2%, K2O: 3-8%, Na2O: 0.5-4%, ZnO: 8-15%, loss on ignition: 1-3%.

[0083] The size distribution of the transparent dry particles is as follows: 30 mesh or more: none, 30 mesh to 60 mesh: 20-40%, 60 mesh to 80 mesh: 15-30%, 80 mesh to 100 mesh: 18-30%, 100 mesh to 120 mesh: 10-25%, and 120 mesh or less: 0-10%.

[0084] In addition, the application further provides a preparation method of the multi-matrix three-dimensional distributed rainbow crystal grain ceramic tile, and the preparation method comprises the following steps:

[0085] S1, after the green body powder is pressed and treated, drying is performed at 150-200 DEG C for 30-45 min to obtain a green body with a water content of 0.5-0.7;

[0086] S2, a surface glaze is applied to the surface of the green body to form a surface glaze layer;

[0087] S3, a preset pattern and a glue pattern are printed on the surface glaze layer by inkjet printing to form a pattern layer and a glue pattern layer;

[0088] S4, a mixed dry particle formed by mixing the rainbow crystal grain and the transparent dry particle is applied to the glue pattern layer, and the dry particle not adhered to the glue pattern is recovered through an absorption system to form a rainbow crystal grain layer;

[0089] S5, a glaze slurry formed by mixing the protective glaze and the glue is sprayed on the rainbow crystal grain layer to form a protective glaze layer;

[0090] S6, the transparent dry particle is applied to the protective glaze layer to form a transparent dry particle layer;

[0091] S7, the glue is sprayed on the transparent dry particle layer to fix the dry particle, the dry particle is subjected to drying treatment in a drying kiln, a glue protection layer is formed to protect the dry particle from being sucked away, and then the tile body is subjected to polishing treatment, edge grinding and packaging after being fired at a temperature of 1170-1210 DEG C for 10-20 min, so that a multi-matrix three-dimensional distributed rainbow crystal grain ceramic tile is obtained.

[0092] The embodiments of the application will be described in detail below with reference to specific examples.

[0093] Example 1

[0094] A multi-matrix three-dimensional distributed rainbow crystal grain ceramic tile, the ceramic tile comprises, from bottom to top, a green body layer, a surface glaze layer, a pattern layer, a glue pattern layer, a rainbow crystal grain layer, a protective glaze layer, a transparent dry particle layer and a glue protection layer.

[0095] The surface glaze layer is prepared from a surface glaze, and the specific gravity of the surface glaze is 1.82 g / cm 3 , and the glaze application amount is 500±5 g / m 2The face glaze comprises the following chemical components in mass percentage:

[0096] SiO2: 61.55%, Al2O3: 23.66%, CaO: 1.42%, K2O: 2.19%, Na2O: 3.02%, ZnO: 1.15%, ZrO2: 5.82%, loss on ignition: 1.19%;

[0097] The glue pattern layer is formed according to the glue of the set texture color extraction; the gray scale of the glue pattern has a regular gradient change, and the accumulation of dry particles also has a regular gradient increase and / or decrease change, and the rainbow effect of the tile surface after firing presents a multi-matrix three-dimensional distribution, the gray scale change range of the glue pattern is 40%~100%, and the glue application amount is 40±2g / m 2 ;

[0098] The rainbow crystal layer is obtained by mixing the rainbow crystal and the transparent dry particles at a mass ratio of 1:0.6 to obtain mixed dry particles, and the transparent dry particles in the rainbow crystal layer and the transparent dry particles in the transparent dry particle layer are the same kind; the application amount of the mixed dry particles is 167±2g / m 2 , wherein the rainbow crystal is obtained by crushing ore, and the initial melting point is 1260°C, the rainbow crystal comprises the following chemical components in mass percentage: SiO2: 32.91%, ZrO2: 67.09%; the size distribution of the rainbow crystal is as follows: 60 mesh and above: none, 60 mesh~80 mesh: 43%, 80 mesh~100 mesh: 23%, 100 mesh~120 mesh: 11%, 120 mesh~150 mesh: 10%, 150 mesh~200 mesh: 10%, 200 mesh and below: 3%;

[0099] The protective glaze layer is prepared from the glaze slurry obtained by mixing the protective glaze and the glue at a mass ratio of 0.35:1; the specific gravity of the glaze slurry is 1.13g / cm 3 , the glazing amount is 167±2g / m 2 ; the protective glaze comprises the following chemical components in mass percentage: SiO2: 64.69%, Al2O3: 10.94%, CaO: 8.64%, MgO: 1.58%, K2O: 0.84%, Na2O: 5.52%, ZnO: 3.07%, SrO: 1.4%, loss on ignition: 3.31%;

[0100] The glue in the protective glaze layer comprises the following raw materials in mass percentage: thickening agent: 23.81%, dispersing agent: 9.52%, wetting agent: 9.52%, leveling agent: 9.52%, defoaming agent: 4.76%, water: 42.86%;

[0101] The application amount of the transparent dry particles in the transparent dry particle layer is 833±5g / m 2The initial melting point of the transparent dry granule is 1160 DEG C; the transparent dry granule comprises the following chemical components in mass percentage: SiO2: 58.09%, Al2O3: 8.53%, CaO: 11.22%, MgO: 0.66%, K2O: 6.54%, Na2O: 1.07%, ZnO: 11.9%, loss on ignition: 1.98%; the grading of the transparent dry granule is: 30 mesh or more: none, 30-60 mesh: 32%, 60-80 mesh: 23%, 80-100 mesh: 24%, 100-120 mesh: 16%, 120 mesh or less: 5%.

[0102] A preparation method of a multi-matrix three-dimensional distributed rainbow crystal granule ceramic tile, comprising the following steps:

[0103] S1, after the green body powder is pressed and treated, drying at 190 DEG C for 35 min to obtain a green body with a water content of 0.5-0.7;

[0104] S2, spraying a surface glaze on the surface of the green body to form a surface glaze layer;

[0105] S3, printing a preset pattern and a glue pattern on the surface glaze layer by inkjet printing to form a pattern layer and a glue pattern layer;

[0106] S4, applying a mixed dry granule composed of rainbow crystal granules and transparent dry granules on the glue pattern layer, and recycling the dry granules not adhered to the glue pattern through an absorption system to form a rainbow crystal granule layer;

[0107] S5, spraying an ink slurry composed of a protective glaze and glue on the rainbow crystal granule layer to form a protective glaze layer;

[0108] S6, applying transparent dry granules on the protective glaze layer to form a transparent dry granule layer;

[0109] S7, spraying glue on the transparent dry granule layer to fix the dry granules, drying treatment in a drying kiln, forming a glue protection layer to protect the dry granules from being blown away, then firing in a roller kiln at a temperature of 1195 DEG C for 15 min, and then polishing the fired tile body, edge grinding, and packaging to obtain a multi-matrix three-dimensional distributed rainbow crystal granule ceramic tile.

[0110] As Figure 2As shown, rainbow crystals are particles sorted after the crushing of natural minerals. They possess original polyhedral morphologies such as tetragonal bipyramidal structures, as well as irregular morphologies caused by crushing. Rainbow crystals have a high melting point and retain their original morphology even after firing at 1250℃. In rainbow crystal ceramic tiles, the rainbow crystals are embedded in the effect layer of the glaze. Due to the difference in expansion coefficients between the crystals and the glaze, the stress caused by the difference in shrinkage within the glaze causes a change in the refractive index around the rainbow crystal particles, resulting in diffraction, interference, and reflection fringes, forming a rainbow-like iridescent effect. Figure 3 As shown, Figure 3 This is an example of the "rainbow effect" of the multi-matrix three-dimensionally distributed rainbow crystalline ceramic tile under a microscope at high magnification. Under the naked eye or a low-magnification microscope, the rainbow crystalline ceramic tile presents different color effects when viewed from different angles, realistically simulating the iridescent effect of natural luxury stone. Figure 4 and Figure 5 These are different iridescent effects observed at the same location of the multi-matrix three-dimensionally distributed rainbow crystalline ceramic tile in Example 1 from both vertical and tilted angles using a microscope. Figure 6 This is an overall photograph of the rainbow crystalline ceramic tile with a multi-matrix three-dimensional distribution, as shown in Example 1, under natural light.

[0111] Example 2:

[0112] The difference between Example 2 and Example 1 is that in Example 2, the mass ratio of rainbow crystals to transparent dry particles in the rainbow crystal layer is 1:0.8, while the rest is the same as in Example 1.

[0113] Example 3:

[0114] The difference between Example 3 and Example 1 is that the rainbow crystals in Example 3 include the following chemical composition by mass percentage: SiO2: 38.1%, ZrO2: 61.9%; the rest is the same as in Example 1.

[0115] Example 4:

[0116] The difference between Example 4 and Example 1 is that in Example 4, the mass ratio of protective glaze to adhesive in the protective glaze layer is 0.5:1, while the rest is the same as in Example 1.

[0117] Example 5:

[0118] The difference between Example 5 and Example 1 is that the transparent dry granules in Example 5 include the following chemical composition by mass percentage: SiO2: 60.5%, Al2O3: 8.32%, CaO: 9.6%, MgO: 1.7%, K2O: 6.1%, Na2O: 1.02%, ZnO: 10.6%, and loss on ignition: 2.16%; the rest is the same as in Example 1.

[0119] Comparative Example 1:

[0120] Comparative Example 1 differs from Example 1 in that the mass ratio of rainbow grains to transparent dry grains in the rainbow grain layer of Comparative Example 1 is 1:0.25, and other aspects are the same as Example 1.

[0121] Comparative Example 2:

[0122] Comparative Example 2 differs from Example 1 in that the gradation of rainbow grains in Comparative Example 2 is 150-250 mesh, and other aspects are the same as Example 1.

[0123] Comparative Example 3:

[0124] Comparative Example 3 differs from Example 1 in that zircon sand dry grains are used to replace rainbow grains in Comparative Example 3, and the zircon sand dry grains include the following mass percentages of chemical components: SiO2: 56.55%, MgO: 2.52%, CaO: 8.22%, B2O3: 1.67%, Cr2O3: 1.88%, Al2O3: 7.32%, K2O: 2.56%, CuO: 2.78%, CaF2: 0.14%, Na2O: 3.24%, TiO2: 0.26%, BaO: 8.44%, ZrO2: 5.30%, P2O5: 0.32%; and other aspects are the same as Example 1.

[0125] Comparative Example 4:

[0126] Comparative Example 4 differs from Example 1 in that no protective glaze layer is provided in Comparative Example 4, and other aspects are the same as Example 1.

[0127] Comparative Example 5:

[0128] Comparative Example 5 differs from Example 1 in that the transparent dry grains in Comparative Example 5 have a particle size range of 10-30 mesh, and other aspects are the same as Example 1.

[0129] Comparative Example 6:

[0130] Comparative Example 6 differs from Example 1 in that the transparent dry grains in Comparative Example 6 include the following mass percentages of chemical components:

[0131] SiO2: 54.87%, Al2O3: 8.32%, CaO: 20.3%, MgO: 1.53%, K2O: 2.7%, Na2O: 1.58%, ZnO: 8.47%, loss on ignition: 2.23%.

[0132] The samples of ceramic tiles prepared in Examples 1-5 and comparative samples of ceramic tiles prepared in Comparative Examples 1-6 were subjected to performance tests, wherein the abrasion resistance was tested according to GB / T 3810.7-2016 to detect the abrasion resistance: the abrasion of the tile surface after a certain number of grinding revolutions was observed, and the abrasion was classified into 0-5 levels, wherein the visible abrasion after 100 revolutions was 0 level, the visible abrasion after 150 revolutions was 1 level, the visible abrasion after 600 revolutions was 2 level, the visible abrasion after 750 / 1500 revolutions was 3 level, the visible abrasion after 2100 / 6000 / 12000 revolutions was 4 level, and more than 12000 revolutions was 5 level; the stain resistance was tested according to GB / T 3810.14-2016 to detect the stain resistance: the stain resistance of the tile surface treated with a surface treatment agent was tested, the test principle was that the stain agent (chromium green, iodine liquor and olive oil, etc.) was contacted with the front surface of the tile and allowed to act for a certain time, then the tile surface was cleaned according to the specified cleaning method, the change of the tile surface was observed to determine the stain resistance of the tile, and the level was classified into 1-5 levels, and the 5 level had the best stain resistance; the glaze effect was observed by the naked eye and recorded by the person skilled in the art, and if necessary, a microscope or magnifying glass was used as a tool. The results are shown in Table 1 below.

[0133] Table 1: Performance test results

[0134]

[0135] From Table 1, it can be seen that:

[0136] Through detailed comparative analysis of Example 1, Comparative Example 1 and Table 1, it can be clearly seen that during the use of the mixture of rainbow crystals and transparent dry particles, if the content of transparent dry particles is too low, the rainbow crystals are prone to stacking. This stacking will cause gaps and pores between the mixed dry particles, thereby affecting the overall stain resistance. Specifically, when the amount of transparent dry particles is insufficient, the rainbow crystals cannot be evenly dispersed on the body, thereby causing unevenness and voids on the surface of the body. These pores and uneven areas will reduce the density of the glaze, making it easier for dirt and impurities to adhere to the surface of the body, thereby weakening the stain resistance of the glaze. Therefore, in order to ensure that the glaze has good stain resistance, the proportion of rainbow crystals and transparent dry particles must be controlled, and the content of transparent dry particles must be sufficient to avoid the formation of too many gaps and pores.

[0137] Through detailed comparative analysis of Example 1, Comparative Example 2, Table 1, Figure 5 and Figure 8Detailed comparative analysis shows that the particle size of the rainbow grains is too fine, which can easily cause blockage during use and uneven distribution of the dry particles. Since the particle size of the dry particles is overall small, the surface area of the dry particles increases, the friction between the particles increases, the rest angle increases, and the flowability also deteriorates. In addition, the rainbow grains with too fine particle size cannot exhibit the three-dimensional effect and the color-changing effect in practical applications. This is because when the rainbow grains are too fine, the refraction effect produced when they are melted or subjected to stress is minimal, and no obvious visual effect can be formed.

[0138] Detailed comparative analysis of Example 1, Comparative Example 3, Table 1, Figure 5 and Figure 9 Detailed comparative analysis shows that although the zircon sand has a certain sparkling effect, it does not have any color effect. This sparkling effect mainly comes from the unique physical structure of the zircon sand, which can produce subtle reflection and scattering under light irradiation, giving a sparkling visual effect. However, in terms of color performance, the zircon sand is relatively single, and it cannot exhibit rich and colorful color changes like the rainbow grains.

[0139] Detailed comparative analysis of Example 1, Comparative Example 4, Table 1, Figure 5 and Figure 10 Detailed comparative analysis shows that the protective glaze layer significantly enhances the color performance of the inkjet printed pattern, ensuring its brightness and clarity. Using the spray glazing method, the protective glaze layer does not damage the pattern and fixes the rainbow grains. It also prevents the transparent dry particles from affecting the pattern color, ensuring stable and long-lasting printing effects. This protective measure enables the pattern to resist environmental interference and maintain its aesthetic appearance and color saturation. The Comparative Example 4 sample, without a protective layer, has a much darker color compared to the Example 1 sample.

[0140] Detailed comparative analysis of Example 1, Comparative Example 5, and Table 1 shows the influence of the particle size distribution of the transparent dry particles on the glaze. Since the transparent dry particles in Comparative Example 5 are relatively coarse, the surface of the fired brick has obvious waves, affecting the flatness. The transparent dry particles in Example 1, which have been carefully selected, have a more reasonable particle size distribution, and the surface of the fired ceramic tile is smooth and flat without waves, greatly improving the aesthetic appearance and overall quality of the ceramic tile. The particle size distribution of the transparent dry particles not only affects the appearance of the ceramic tile, but also has an important influence on the wear resistance, stain resistance, and other properties of the ceramic tile.

[0141] Detailed comparative analysis of Example 1, Comparative Example 6, Table 1, Figure 5 and Figure 11Detailed comparative analysis shows that when the content of transparent dry granular calcium is too high, the sintered ceramic tile glaze appears milky white state, and the transparency is greatly reduced, which affects the aesthetic and gloss of the ceramic tile. Therefore, the content of calcium in the transparent dry granules is one of the important factors affecting the transparency of the ceramic tile glaze, and reasonable component ratio control also plays an important role in improving the overall quality of the ceramic tile.

[0142] The technical features of the above-described embodiments can be combined in any manner. To make the description concise, all possible combinations of the technical features in the above-described embodiments are not described, but as long as the combinations of the technical features do not exist contradictions, they should be considered as the scope of the present disclosure.

[0143] The above-described embodiments only express several implementation manners of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the scope of the patent. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A multi-matrix three-dimensionally distributed rainbow crystalline ceramic tile, characterized in that, The multi-matrix three-dimensional distribution of rainbow crystalline ceramic tiles, from bottom to top, includes a body layer, a surface glaze layer, a pattern layer, an adhesive pattern layer, a rainbow crystalline layer, a protective glaze layer, a transparent dry granule layer, and an adhesive protective layer. The rainbow crystalline layer is prepared by uniformly mixing rainbow crystalline particles and transparent dry particles in a mass ratio of 1:(0.5~0.8), and the initial melting point of the rainbow crystalline particles is 1250℃~1280℃, while the initial melting point of the transparent dry particles is 1130℃~1180℃; the firing temperature of the rainbow crystalline ceramic tile is 1170℃~1210℃, and the holding time is 10min~20min. The rainbow grains comprise the following components by mass percentage: SiO2: 25~40%, ZrO2: 60~75%; The gradation of the rainbow crystals is as follows: above 60 mesh: none; 60-80 mesh: 35-50%; 80-100 mesh: 15-30%; 100-120 mesh: 8-18%; 120-150 mesh: 5-15%; 150-200 mesh: 5-15%; below 200 mesh: 1-5%. The transparent dry granule layer is prepared from transparent dry granules and is the same as the transparent dry granules in the rainbow crystalline layer; The transparent dry granules contain the following chemical components by weight percentage: SiO2: 55~65%, Al2O3: 5~10%, CaO: 8~15%, MgO: 0.66~1.7%, K2O: 3~8%, Na2O: 0.5~4%, ZnO: 8~15%, Loss on ignition: 1~3%; The gradation of transparent dry granules is as follows: above 30 mesh: none; 30-60 mesh: 20-40%; 60-80 mesh: 15-30%; 80-100 mesh: 18-30%; 100-120 mesh: 10-25%; below 120 mesh: 0-10%. The protective glaze layer is prepared by mixing the protective glaze and glue in a mass ratio of (0.3~0.5):

1. The protective glaze comprises the following components by weight percentage: SiO2: 60~70%, Al2O3: 8~15%, CaO: 5~10%, MgO: 0.5~4%, K2O: 0.5~3%, Na2O: 4~8%, ZnO: 2~5%, SrO: 1~3%, Loss on ignition: 2~5%; The adhesive protective layer is formed by spraying adhesive onto the transparent dry granule layer to fix the dry granules, followed by drying in a drying kiln.

2. The multi-matrix three-dimensionally distributed rainbow crystalline ceramic tile according to claim 1, characterized in that, The specific gravity of the glaze slurry is 1.05~1.2 g / cm³. 3 The application rate is 150~200g / m². 2 .

3. The rainbow-grained ceramic tile with multi-matrix three-dimensional distribution according to claim 2, characterized in that, The adhesive comprises the following raw materials by weight percentage: Thickener: 15-25%, Dispersant: 5-15%, Wetting agent: 5-15%, Leveling agent: 5-15%, Defoamer: 3-7%, Water: 35-48%.

4. The multi-matrix three-dimensionally distributed rainbow crystalline ceramic tile according to claim 1, characterized in that, The surface glaze layer is prepared from a surface glaze, and the specific gravity of the surface glaze is 1.75~1.85 g / cm³. 3 The glaze application rate is 450~550g / m². 2 .

5. The multi-matrix three-dimensionally distributed rainbow grain ceramic tile according to claim 4, characterized in that, The glaze comprises the following components by weight percentage: SiO2: 55~65%, Al2O3: 18~26%, CaO: 1~3%, K2O: 2~5%, Na2O: 2~4%, ZnO: 0.7~2%, ZrO2: 3~8%, Loss on ignition: 0.8~2%.

6. The rainbow-grained ceramic tile with multi-matrix three-dimensional distribution according to claim 1, characterized in that, The adhesive pattern layer extracts adhesive according to the set texture color to form an adhesive pattern; The grayscale of the glue pattern changes in a regular gradient, and the areas where dry granules are piled up also change in a regular gradient, increasing and / or decreasing. The rainbow effect on the surface of the fired tile presents a multi-matrix three-dimensional distribution.

7. The multi-matrix three-dimensionally distributed rainbow grain ceramic tile according to claim 6, characterized in that, The grayscale variation range of the adhesive pattern is 40%~100%, and the application amount of adhesive is 35~55g / m². 2 .

8. The multi-matrix three-dimensionally distributed rainbow grain ceramic tile according to claim 1, characterized in that, The application rate of the mixed dry granules is 150~200g / m³. 2 ; The rainbow-colored crystals are obtained by crushing ore.

9. The multi-matrix three-dimensionally distributed rainbow grain ceramic tile according to claim 1, characterized in that, In the transparent dry granule layer, the application rate of transparent dry granules is 700~950g / m³. 2 .

10. A method for preparing a multi-matrix three-dimensionally distributed rainbow grain ceramic tile, characterized in that, The preparation method is used to prepare rainbow grain ceramic tiles with multi-matrix three-dimensional distribution as described in any one of claims 1 to 9, and the preparation method includes the following steps: S1. After pressing the green body powder, dry it at 150℃~200℃ for 30~45min to obtain a green body with a moisture content of 0.5%~0.7%. S2. Apply a surface glaze to the surface of the blank to form a surface glaze layer; S3. Inkjet print a preset pattern and an adhesive pattern onto the surface glaze layer to form a pattern layer and an adhesive pattern layer. S4. Apply mixed dry particles, consisting of rainbow crystals and transparent dry particles, onto the adhesive pattern layer, and recover the dry particles that are not adhered to the adhesive pattern through an absorption system to form a rainbow crystal layer. S5. Spray a glaze slurry made of a mixture of protective glaze and glue onto the rainbow grain layer to form a protective glaze layer; S6. Apply transparent dry granules onto the protective glaze layer to form a transparent dry granule layer; S7. Spray glue onto the transparent dry granule layer to fix the dry granules. After drying in a drying kiln, a protective glue layer is formed to protect the dry granules from being absorbed. Then, the granules are fired in a roller kiln at a temperature of 1170℃~1210℃ for 10min~20min. The fired granules are then polished, edged, and packaged to obtain a multi-matrix three-dimensional rainbow crystalline ceramic tile.

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