Candy dry granule glaze, candy effect ceramic tile and preparation method

Abstract

This application belongs to the field of ceramic tile technology and specifically discloses a candy dry granule glaze, a candy-effect ceramic tile, and a preparation method. The candy dry granule glaze comprises candy dry granules, and its raw materials, by weight, include: 11-15 parts kaolin, 21-31 parts soda-lime silicate glass powder, 7-13 parts nano-silicon dioxide, 12-18 parts alpha-alumina, 2-5 parts calcium fluoride, 5-13 parts nano-zinc oxide, 2-6 parts borax, 3-5 parts sodium carbonate, 4-6 parts potassium carbonate, 1-3 parts lithium carbonate, and 8-10 parts calcium carbonate; a glaze layer formed on the surface of the ceramic tile by the candy dry granule glaze is obtained to obtain a ceramic tile with a candy effect. The candy dry granule glaze provided in this application takes into account both good transparency and good physical properties, with a more three-dimensional and natural texture and high wear and stain resistance.

Description

Technical Field

[0001] The present application belongs to the technical field of ceramic tiles, and specifically relates to a candy dry granule glaze, a candy effect ceramic tile and a preparation method. Background Art

[0002] Traditional candy-glazed ceramic tiles are made by applying a transparent dry granular glaze to the surface of the tile. After firing, a transparent or translucent glaze layer forms, creating a candy-like sheen and three-dimensional effect. However, existing technologies suffer from the following issues: 1. Monotonous texture: The glaze's uneven surface is random and cannot precisely match the natural texture of the stone; 2. Poor stain resistance: The glaze's micropores easily harbor dirt, and particles can easily become stuck together; 3. Inadequate wear resistance: This type of glaze uses a multi-glass phase glaze formula, resulting in a low glaze hardness and easy wear over time, resulting in a less durable product and causing surface dirt absorption; 4. Uneven transparency: Fluctuations in glaze thickness lead to varying light transmittance. Summary of the Invention

[0003] The purpose of the present application is to address at least one deficiency in the prior art. Based on this, the present application provides a candy dry particle glaze, including candy dry particles. The raw materials of the candy dry particles include, by weight: 11-15 parts of kaolin, 21-31 parts of soda-lime silicate glass powder, 7-13 parts of nano-silicon dioxide, 12-18 parts of α-alumina, 2-5 parts of calcium fluoride, 5-13 parts of nano-zinc oxide, 2-6 parts of borax, 3-5 parts of sodium carbonate, 4-6 parts of potassium carbonate, 1-3 parts of lithium carbonate, and 8-10 parts of calcium carbonate.

[0004] The above-mentioned candy dry particle glaze provided in the present application, on the one hand, designs the ternary synergistic effect of SiO2-Al2O3-CaF2, nano-SiO2 fills the gaps, α-Al2O3 strengthens the skeleton, and CaF2 reduces the surface energy, thereby increasing the wear resistance and having good light transmittance, and solves the problems of easy sticking and hiding of dirt between dry particles, achieving the effect of "high transmittance + wear resistance + hydrophobicity"; on the other hand, it designs the viscosity regulation effect of ZnO-B2O3, through the local viscosity increase of ZnO and the global melting balance of B2O3, to ensure that the glaze layer maintains the preset texture clarity during firing, and the concave and convex texture formed when combined with the deep ink of the digital glaze can still maintain a certain three-dimensional texture after firing.

[0005] In addition, in the formula of the above-mentioned candy dry granule glaze provided by the present application, kaolin mainly provides Al2O3 and SiO2, providing the main skeleton; sodium calcium silicate glass powder serves as the basic melting carrier to form a transparent glaze layer matrix, optimizes the CaO / Na2O ratio (approximately 1.5:1), and reduces the melting temperature to 1150 ℃-1200 ℃; nano-silicon dioxide improves the transparency of the glaze surface, fills micropores with a particle size of ≤50 nm, forms a dense network structure with the glass powder, and reduces the microporosity to 0.3%; α-alumina enhances wear resistance, improves the hardness of the glaze layer, and enhances scratch resistance due to directional arrangement; calcium fluoride is hydrophobic and anti-fouling, adjusts the gloss of the glaze surface, and can form a fluoride gas phase after high-temperature decomposition, reducing the surface energy of the glaze layer (≤25 mN / m); Nano-zinc oxide regulates melt viscosity and stabilizes uneven textures; nanoparticles adsorb on the surface of dry particles, forming localized high-viscosity areas and inhibiting excessive leveling of the glaze; borax acts as a low-temperature flux to promote uniform melting of the glaze; the composite addition of lithium carbonate (replacing part of the borax) further reduces the firing temperature (ΔT≈30°C); sodium carbonate and potassium carbonate mainly provide monovalent oxides, providing Na2O and K2O as flux; calcium carbonate mainly provides divalent oxides, CaO, which form anorthite crystals after firing.

[0006] In summary, the candy dry particles provided in this application achieve high transparency and suitable glossiness of the candy dry particle glaze through the control and design of the silicon-aluminum ratio, acidity coefficient, etc., and well realize the effect of candy glaze. At the same time, it also has good physical properties, such as high wear resistance and anti-fouling performance, which solves the problem of difficulty in balancing good transparency and good wear resistance.

[0007] The particle size D97 of the α-alumina is 1 μm to 3 μm, the particle size D97 of the nano zinc oxide is 20 nm to 50 nm, and the particle size D97 of the nano silicon dioxide is no greater than 50 nm.

[0008] The preparation method of the above-mentioned candy dry particles includes the following steps: mixing the above-mentioned raw materials and melting them into a uniform glass liquid at 1350°C-1450°C, quenching, crushing, and passing through a 250-mesh sieve to obtain the above-mentioned candy dry particles with a particle size D97 of 80 μm-120 μm.

[0009] The chemical composition of the above-mentioned dry candy particles includes, by mass percentage: Al2O3 15.23%-17.85%, SiO2 55.21%-57.36%, ZnO 4.35%-10.24%, B2O3 2.04%-5.52%, K2O 1.98%-3.04%, Na2O 1.54%-2.67%, Li2O 0.51%-1.47%, CaO 4.65%-9.12%; the remainder is trace impurities and loss on ignition.

[0010] In some implementations, the candy dry particle glaze further includes a suspending agent, and the mass ratio of the candy dry particles to the suspending agent is 1:(3-4).

[0011] Based on the above-mentioned candy dry particle glaze formula, the present application also provides a candy effect ceramic tile, which comprises: a body layer, a surface glaze layer, a pattern and texture layer, a water-based isolation glaze layer, and a candy dry particle glaze layer;

[0012] The candy dry grain glaze layer is formed by the above-mentioned candy dry grain glaze; the texture in the pattern and texture layer is formed by printing matte deep ink; the surface glaze layer is formed by surface glaze; and the water-based isolation glaze layer is formed by water-based isolation glaze.

[0013] The present application also provides a method for preparing the above-mentioned candy effect ceramic tile, comprising the following steps:

[0014] Apply the above-mentioned glaze on the surface of the above-mentioned green body layer, then print the pattern, then print the above-mentioned matte deep ink, then apply the above-mentioned water-based isolation glaze, then apply the above-mentioned candy dry particle glaze, and fire to obtain the above-mentioned candy effect ceramic tiles.

[0015] The specific gravity of the water-based isolation glaze is 1.30 g / mL-1.50 g / mL, and the application amount is 200 g / m 2 -220g / m 2 The specific gravity of the above candy granule glaze is 1.15 g / mL-1.25 g / mL, and the application amount is 300 g / m 2 -350g / m 2 The sintering temperature is 1180°C-1190°C and the sintering time is 50 min-60 min.

[0016] When the water-based barrier glaze is applied, it creates a undulating effect similar to the texture of the matte engraving ink. Because the matte engraving ink is highly hydrophobic, it creates a repulsive force when it encounters the water-based barrier glaze, creating an undulating effect similar to the texture printed with the matte engraving ink. When the candy granule glaze is applied, the candy granule glaze overlays the undulating areas created by the water-based barrier glaze in areas where the matte engraving ink is present, creating a surface with a undulating texture, enriching the surface effects of the granule glaze.

[0017] The beneficial effects of the present application are as follows: the candy dry particle glaze provided by the present application takes into account both good transparency and good physical properties, has a more three-dimensional and natural texture, and has high wear resistance and anti-fouling properties. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Shown is a physical picture of the candy effect ceramic tile prepared in Example 1;

[0019] Figure 2 Shown is a surface SEM image of the candy effect ceramic tile prepared in Example 1. DETAILED DESCRIPTION

[0020] The following will be combined with the embodiments and drawings to clearly and completely describe the concept and technical effects of this application so as to fully understand the purpose, scheme and effect of this application. It should be noted that the embodiments and features in the embodiments of this application can be combined with each other unless there is a conflict.

[0021] Example 1

[0022] A candy granule glaze comprises candy granules and a suspending agent (9022A suspending agent from Jiangxi Qiantao Glaze Company). The glaze is obtained by uniformly mixing the candy granules and the suspending agent in a ratio of 1:3. The raw materials, by weight, include: 13 parts kaolin, 26 parts soda-lime silicate glass powder, 10 parts nano-silicon dioxide (particle size D97: 10nm-50nm), 15 parts α-alumina (particle size D97: 1μm-3μm), 3.5 parts calcium fluoride, 9 parts nano-zinc oxide (particle size D97: 20nm-50nm), 4 parts borax, 4 parts sodium carbonate, 5 parts potassium carbonate, 2 parts lithium carbonate, and 9 parts calcium carbonate.

[0023] The preparation method of the candy granules of this embodiment includes the following steps: mixing the raw materials, melting them at 1450°C to form a homogeneous glassy liquid, quenching them by uniformly pouring them into cold water, pulverizing them, and passing them through a 250-mesh sieve to obtain candy granules with a particle size of 80 μm to 120 μm. The chemical composition of the candy granules, by mass percentage, is as follows: Al2O3 16.54%, SiO2 56.28%, ZnO 7.29%, B2O3 3.78%, K2O 2.51%, Na2O 2.10%, Li2O 0.99%, and CaO 6.88%; the remainder is trace impurities and loss on ignition.

[0024] This embodiment also provides a candy effect ceramic tile, which comprises in sequence: a body layer, a surface glaze layer, a pattern and texture layer, a water-based isolation glaze layer, and a candy dry granule glaze layer;

[0025] The candy granule glaze layer is formed from the candy granule glaze of this embodiment; the texture in the pattern and texture layer is formed by printing matte engraving ink; the top glaze layer is formed from top glaze; and the aqueous barrier glaze layer is formed from aqueous barrier glaze. The specific chemical composition of the top glaze is as follows: Al2O3 24.67%, SiO2 58.71%, K2O 2.46%, Na2O 4.45%, CaO 1.58%, MgO 1.2%, Fe2O3 0.22%, ZrO2 5.51%, the remainder is loss on ignition. The chemical composition of the aqueous barrier glaze is as follows: Al2O3 16.84%, SiO2 54.98%, ZnO 6.27%, B2O3 4.88%, K2O 2.11%, Na2O 3.12%, Li2O 1.09%, CaO 7.13%, the remainder is loss on ignition. The matte engraving ink was purchased from Foshan Mailis Technology Co., Ltd. and is numbered Matt Engraving Ink 131-8.

[0026] The preparation method of the candy effect ceramic tile of this embodiment comprises the following steps:

[0027] A top glaze is applied to the surface of the green body layer (moisture content of 0.3% by weight; strength of 2.0 MPa), and then a pattern is printed, followed by matte deep ink printing, and then a water-based isolation glaze is applied, followed by a candy dry granular glaze, and then the tiles are fired in a roller kiln to obtain candy-effect ceramic tiles.

[0028] Among them, the specific gravity of water-based isolation glaze is 1.4 g / mL, and the application amount is 210g / m 2 The specific gravity of candy granular glaze is 1.20g / mL and the application amount is 300g / m 2 The sintering temperature is 1185°C and the sintering time is 60 min.

[0029] The actual picture of the candy effect ceramic tile of this embodiment is as follows Figure 1 As shown in the SEM image of its surface Figure 2 shown.

[0030] Example 2

[0031] This embodiment provides a candy dry grain glaze and a candy-effect ceramic tile formed therefrom. This embodiment differs from Example 1 in that the nano-silicon dioxide in the candy dry grain raw material is 7 parts by weight; the chemical composition of the candy dry grain, by mass percentage, comprises: Al2O3 17.54%, SiO2 55.28%, ZnO 7.24%, B2O3 3.88%, K2O 2.54%, Na2O 2.12%, Li2O 0.99%, and CaO 6.85%. The remainder is trace impurities and loss on ignition. Other components are the same as in Example 1.

[0032] Example 3

[0033] This embodiment provides a candy dry grain glaze and a candy-effect ceramic tile formed therefrom. This embodiment differs from Example 1 in that the nano-silicon dioxide in the candy dry grain raw material is 13 parts by weight; the chemical composition of the candy dry grain, by mass percentage, comprises: Al2O3 15.54%, SiO2 57.28%, ZnO 7.26%, B2O3 3.75%, K2O 2.57%, Na2O 2.18%, Li2O 1.08%, and CaO 6.85%. The remainder is trace impurities and loss on ignition. Other components are the same as in Example 1.

[0034] Example 4

[0035] This embodiment provides a candy dry grain glaze and a candy-effect ceramic tile formed therefrom. This embodiment differs from Example 1 in that the α-alumina content of the candy dry grain raw material is 12 parts by weight. The chemical composition of the candy dry grain, by mass percentage, includes: Al2O3 15.52%, SiO2 57.20%, ZnO 7.39%, B2O3 3.98%, K2O 2.47%, Na2O 2.15%, Li2O 0.97%, and CaO 6.78%. The remainder is trace impurities and loss on ignition. Other components are the same as in Example 1.

[0036] Example 5

[0037] This embodiment provides a candy dry grain glaze and a candy-effect ceramic tile formed therefrom. This embodiment differs from Example 1 in that the α-alumina content of the candy dry grain raw material is 18 parts by weight. The chemical composition of the candy dry grain, by mass percentage, comprises: Al₂O₃ 17.84%, SiO₂ 55.28%, ZnO 7.31%, B₂O₃ 3.58%, K₂O 2.54%, Na₂O 2.00%, Li₂O 1.11%, and CaO 6.81%. The remainder is trace impurities and loss on ignition. Other components are the same as in Example 1.

[0038] Example 6

[0039] This embodiment provides a candy dry grain glaze and a candy-effect ceramic tile formed therefrom. This embodiment differs from Example 1 in that the calcium fluoride content in the candy dry grain raw material is 2 parts by weight. The chemical composition of the candy dry grain, by mass percentage, includes: Al2O3 16.56%, SiO2 56.48%, ZnO 7.23%, B2O3 3.70%, K2O 2.57%, Na2O 2.19%, Li2O 0.89%, and CaO 4.98%. The remainder is trace impurities and loss on ignition. Other components are the same as in Example 1.

[0040] Example 7

[0041] This embodiment provides a candy dry grain glaze and a candy-effect ceramic tile formed therefrom. This embodiment differs from Example 1 in that the calcium fluoride content in the candy dry grain raw material is 5 parts by weight. The chemical composition of the candy dry grain, by mass percentage, comprises: Al2O3 16.53%, SiO2 56.29%, ZnO 7.26%, B2O3 3.75%, K2O 2.49%, Na2O 2.30%, Li2O 0.97%, and CaO 8.88%. The remainder is trace impurities and loss on ignition. Other components are the same as in Example 1.

[0042] Example 8

[0043] This embodiment provides a candy dry granule glaze and a candy-effect ceramic tile formed therefrom. This embodiment differs from Example 1 in that the nano-zinc oxide in the candy dry granule raw material is 5 parts by weight; the chemical composition of the candy dry granules, by mass percentage, comprises: Al2O3 16.95%, SiO2 56.98%, ZnO 4.39%, B2O3 4.08%, K2O 3.01%, Na2O 2.80%, Li2O 1.29%, and CaO 6.88%. The remainder is trace impurities and loss on ignition. Other components are the same as in Example 1.

[0044] Example 9

[0045] This embodiment provides a candy dry granule glaze and a candy-effect ceramic tile formed therefrom. This embodiment differs from Example 1 in that the nano-zinc oxide in the candy dry granule raw material is 13 parts by weight. The chemical composition of the candy dry granules, by mass percentage, includes: Al2O3 15.58%, SiO2 55.78%, ZnO 10.19%, B2O3 2.78%, K2O 2.47%, Na2O 2.05%, Li2O 0.89%, and CaO 6.18%. The remainder is trace impurities and loss on ignition. Other aspects are the same as Example 1.

[0046] Comparative Example 1

[0047] This comparative example provides a candy dry grain glaze and a ceramic tile formed therefrom. This comparative example differs from Example 1 in that the nano-silicon dioxide in the candy dry grain raw material is 5 parts by weight; the chemical composition of the candy dry grain, by mass percentage, comprises: Al2O3 16.58%, SiO2 54.98%, ZnO 7.18%, B2O3 2.89%, K2O 2.58%, Na2O 2.15%, Li2O 0.89%, and CaO 6.17%. The remainder is trace impurities and loss on ignition. Other conditions are the same as in Example 1.

[0048] Comparative Example 2

[0049] This comparative example provides a candy dry grain glaze and a ceramic tile formed therefrom. This comparative example differs from Example 1 in that the nano-silicon dioxide in the candy dry grain raw material is 15 parts by weight; the chemical composition of the candy dry grain, by mass percentage, comprises: Al2O3 15.38%, SiO2 58.74%, ZnO 7.11%, B2O3 2.70%, K2O 2.46%, Na2O 1.95%, Li2O 0.79%, and CaO 6.08%. The remainder is trace impurities and loss on ignition. Other conditions are the same as in Example 1.

[0050] Comparative Example 3

[0051] This comparative example provides a candy dry grain glaze and a ceramic tile formed therefrom. This comparative example differs from Example 1 in that the α-alumina content of the candy dry grain raw materials is 10 parts by weight. The chemical composition of the candy dry grains, by mass percentage, comprises: Al₂O₃ 14.38%, SiO₂ 56.73%, ZnO 7.19%, B₂O₃ 2.68%, K₂O 2.57%, Na₂O 2.55%, Li₂O 1.29%, and CaO 6.08%. The remainder is trace impurities and loss on ignition. Other components are the same as in Example 1.

[0052] Comparative Example 4

[0053] This comparative example provides a candy dry grain glaze and a ceramic tile formed therefrom. This comparative example differs from Example 1 in that the α-alumina content of the candy dry grain raw materials is 19 parts by weight. The chemical composition of the candy dry grains, by mass percentage, comprises: Al₂O₃ 18.53%, SiO₂ 54.78%, ZnO 7.25%, B₂O₃ 2.98%, K₂O 2.74%, Na₂O 2.65%, Li₂O 1.49%, and CaO 6.08%. The remainder is trace impurities and loss on ignition. Other components are the same as in Example 1.

[0054] Comparative Example 5

[0055] This comparative example provides a candy dry grain glaze and a ceramic tile formed therefrom. This comparative example differs from Example 1 in that the weight percentage of calcium fluoride in the candy dry grain raw material is 0. The chemical composition of the candy dry grain, by mass percentage, comprises: Al2O3 16.54%, SiO2 55.98%, ZnO 8.10%, B2O3 3.48%, K2O 2.87%, Na2O 2.45%, Li2O 1.21%, and CaO 4.55%. The remainder is trace impurities and loss on ignition. Other conditions are the same as in Example 1.

[0056] Comparative Example 6

[0057] This comparative example provides a candy dry grain glaze and a ceramic tile formed therefrom. This comparative example differs from Example 1 in that the calcium fluoride content of the candy dry grain raw materials is 7 parts by weight. The chemical composition of the candy dry grains, by mass percentage, comprises: Al2O3 15.61%, SiO2 56.18%, ZnO 7.13%, B2O3 2.73%, K2O 2.27%, Na2O 2.35%, Li2O 0.89%, and CaO 9.28%. The remainder is trace impurities and loss on ignition. Other components are the same as in Example 1.

[0058] Comparative Example 7

[0059] This comparative example provides a candy dry granule glaze and a ceramic tile formed therefrom. This comparative example differs from Example 1 in that the nano-zinc oxide in the candy dry granule raw material is 3 parts by weight; the chemical composition of the candy dry granule, by mass percentage, comprises: Al2O3 15.89%, SiO2 55.48%, ZnO 4.09%, B2O3 3.48%, K2O 2.57%, Na2O 3.05%, Li2O 1.69%, and CaO 7.18%. The remainder is trace impurities and loss on ignition. Other conditions are the same as in Example 1.

[0060] Comparative Example 8

[0061] This comparative example provides a candy dry granule glaze and a ceramic tile formed therefrom. This comparative example differs from Example 1 in that the nano-zinc oxide in the candy dry granule raw material is 15 parts by weight. The chemical composition of the candy dry granules, by mass percentage, comprises: Al2O3 16.58%, SiO2 54.98%, ZnO 10.69%, B2O3 3.08%, K2O 2.14%, Na2O 3.01%, Li2O 0.79%, and CaO 6.18%. The remainder is trace impurities and loss on ignition. Other conditions are the same as in Example 1.

[0062] Performance test

[0063] Relevant tests were conducted on the candy effect ceramic tiles prepared in Examples 1-9 and the ceramic tiles prepared in Comparative Examples 1-8, including: the concave-convex texture effect on the product surface, the transparency of the candy dry particle glaze layer, the surface hardness and wear resistance, the surface hydrophobicity and anti-permeability and other properties.

[0064] Among them, (1) Detection method of concave-convex texture effect: mainly through surface profilometer, through detection of 3D morphology analysis, detection of concave-convex texture edge gradient angle and concave-convex depth for characterization. (2) Detection method of transparency of candy dry granule glaze layer: using spectrophotometer, according to standard ASTM D1003 (transmittance test) for detection. (3) Surface hardness detection method: using Mohs hardness detection method, according to standard ASTM C1327, using standard Mohs hardness pen (1-10 level) to apply vertical pressure across the glaze surface; observing the scratches under a microscope, and determining the highest damage-free level (target ≥6 level). (4) Wear resistance detection method: Taber wear resistance test, according to national standard (GB / T 3810.7-2016) (5) Hydrophobicity detection method: static contact angle measurement (sessile drop method), using contact angle meter, the test objects are deionized water and olive oil. (6) Anti-penetration performance test: Standard: GB / T3810.14-2016 (anti-fouling properties of ceramic tiles); pollutants: soy sauce, coffee, red wine, let stand for 24 hours after coating; cleaning: wipe with a wet cloth 30 times; evaluation: residual area ≤5% (Class A anti-fouling).

[0065] The results are shown in Tables 1 and 2.

[0066] Table 1

[0067]

[0068] Table 2

[0069]

[0070] As shown in Tables 1-2, the candy granules in Comparative Example 1 contain too little nanosilica, resulting in a small amount of crystalline phase. There is insufficient SiO₂ to combine with Al₂O₃ to form a mullite phase, resulting in a shallow concave-convex texture and poor light transmittance, antifouling properties, hardness, and wear resistance. In Comparative Example 2, there is too much nanosilica, and there is insufficient flux to melt the SiO₂, resulting in poor transparency and high haze in the candy granules. After firing, antifouling properties, wear resistance, and hardness are relatively low. In Comparative Example 3, there is too little α-alumina, which reduces the skeleton required to form the granules. The concave-convex texture collapses, is shallow, and has a low profile. The lack of a skeleton causes the glaze to collapse, and the hardness and wear resistance are also low. In Comparative Example 4, there is too much α-alumina, resulting in a high temperature for the dry granules. After firing, there is a burning phenomenon, which causes opacity, low transparency, high haze, and a poor surface effect. Comparative Example 5 lacked calcium fluoride in the formulation, resulting in insufficient reaction of the candy granules during firing. Furthermore, the glaze surface of the granules exhibited poor hydrophobicity and antifouling properties. Comparative Example 6 used an excessive amount of calcium fluoride, resulting in a high loss on ignition after firing. The excessive amount of CaO also caused crystallization and devitrification, resulting in poor glaze transmittance and high haze. Comparative Example 7 used a low amount of nano-zinc oxide, resulting in insufficient flux strength, which led to insufficient crystal formation after firing and poor performance across the board. Comparative Example 8 used an excessive amount of nano-zinc oxide, resulting in excessive melting performance, resulting in unclear and relatively collapsed glaze textures. Furthermore, the glaze surface also exhibited low wear resistance and hardness.

[0071] The above is only a preferred embodiment of the present application. The present application is not limited to the above-mentioned embodiments. As long as the technical effects of the present application are achieved by the same means, they shall fall within the scope of protection of the present application. Within the scope of protection of the present application, the technical solutions and / or implementation methods may be modified and varied in various ways.

Claims

1. A candy dry granule glaze, characterized in that: The candy dry particles are prepared from the following raw materials in parts by weight: 11-15 parts of kaolin, 21-31 parts of soda-lime silicate glass powder, 7-13 parts of nano silicon dioxide, 12-18 parts of alpha-alumina, 2-5 parts of calcium fluoride, 5-13 parts of nano zinc oxide, 2-6 parts of borax, 3-5 parts of sodium carbonate, 4-6 parts of potassium carbonate, 1-3 parts of lithium carbonate, and 8-10 parts of calcium carbonate.

2. The candy dry granule glaze according to claim 1, characterized in that The particle size D97 of the α-alumina is 1 μm-3 μm.

3. The candy dry granule glaze according to claim 1, characterized in that The particle size D97 of the nano zinc oxide is 20 nm to 50 nm; and / or the particle size D97 of the nano silicon dioxide is not greater than 50 nm.

4. The candy dry granule glaze according to claim 1, characterized in that The preparation method of the candy dry particles comprises the following steps: mixing the raw materials, melting them at 1350° C.-1450° C. into a uniform glass liquid, quenching, crushing, and passing through a 250-mesh sieve to obtain the candy dry particles with a particle size D97 of 80 μm-120 μm.

5. The candy dry granule glaze according to any one of claims 1 to 4, characterized in that The candy dry particle glaze further includes a suspending agent, and the mass ratio of the candy dry particles to the suspending agent is 1:(3-4).

6. A candy effect ceramic tile, characterized in that: Including in order: Body layer, glaze layer, pattern and texture layer, water-based isolation glaze layer, candy dry granule glaze layer; The candy dry particle glaze layer is formed by the candy dry particle glaze according to any one of claims 1 to 5; the texture in the pattern and texture layer is formed by printing matte deep ink; the surface glaze layer is formed by surface glaze; and the water-based isolation glaze layer is formed by water-based isolation glaze.

7. A method for preparing the candy effect ceramic tile according to claim 6, characterized in that: The following steps are involved: The top glaze is applied on the surface of the green body layer, and then a pattern is printed, followed by printing the matte deep ink, and then the water-based isolation glaze is applied, followed by applying the candy dry particle glaze, and firing to obtain the candy effect ceramic tile.

8. The preparation method according to claim 7, characterized in that The specific gravity of the water-based isolation glaze is 1.30 g / mL-1.50 g / mL, and the application amount is 200 g / m 2 -220 g / m 2 .

9. The preparation method according to claim 7, characterized in that The specific gravity of the candy dry granule glaze is 1.15 g / mL-1.25 g / mL, and the application amount is 300 g / m 2 -350 g / m 2 .

10. The preparation method according to claim 7, characterized in that The sintering temperature is 1180° C.-1190° C., and the sintering time is 50 min-60 min.

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