A method for preparing high-transparency and wear-resistant glazed bricks and the high-transparency and wear-resistant glazed bricks themselves.

Abstract

This invention discloses a method for preparing high-transparency and wear-resistant polished glazed tiles, comprising the following steps: (1) preparing ceramic blanks, pressing the ceramic blanks, and drying them to obtain a body layer; (2) applying a base glaze to the surface of the body layer to obtain a base glaze layer; (3) performing inkjet printing on the surface of the base glaze layer to obtain an inkjet printed layer; (4) applying a first glaze slurry to the surface of the inkjet printed layer to obtain a first glaze layer; (5) applying a second glaze slurry to the surface of the first glaze layer to obtain a second glaze layer; (6) applying a third glaze slurry to the surface of the second glaze layer to obtain a third glaze layer; (7) drying and firing in a kiln, and polishing to obtain the high-transparency and wear-resistant polished glazed tiles. In this scheme, a three-layer glaze system of a first glaze layer, a second glaze layer, and a third glaze layer is used to form the polished glaze layer. 806-1 frit, NM-03 frit, and 906X frit are selected in combination with a specific formula structure so that the fired polished glazed tiles can take into account color, transparency, and wear resistance, and are especially suitable for dark-colored polished glazed tiles.

Description

Technical Field

[0001] This invention relates to the field of building ceramics, and in particular to a method for preparing high-transparency and wear-resistant polished glazed tiles and the high-transparency and wear-resistant polished glazed tiles themselves. Background Technology

[0002] Polished glazed tiles are a popular high-end building decoration material in recent years. They are typically produced by printing patterns on the tile blank or applying a base glaze followed by printing, then applying a layer of fully polished glaze, usually a transparent glaze or a transparent embossed glaze. After firing in a kiln, the glaze layer is polished to obtain the finished product. They combine the advantages of porcelain glazed tiles and polished tiles, offering not only rich patterns but also a smooth and glossy surface with underglaze / in-glaze effects. The printed layer is largely protected from wear under the glaze layer, and after polishing, it becomes even more lustrous, resulting in excellent decorative effects.

[0003] To ensure a strong decorative effect from the printed pattern, the glaze layer typically needs good transparency and color development. However, its hardness and wear resistance are usually poor, making the surface easily scratched and damaged. Some companies have addressed this by increasing the glaze thickness, but this increases costs and also affects the printed layer, leading to problems like bubbles after polishing. Therefore, some companies have increased the aluminum-silicon ratio in the chemical composition of the glaze layer to enhance its wear resistance. However, a higher aluminum-silicon ratio severely impacts the surface finish of glazed tiles. Firstly, the higher aluminum-silicon ratio increases the firing temperature, making underfiring of the glaze more likely and affecting the tile's flatness. Secondly, the increased aluminum content results in excessive aluminum crystalline phase residue, causing the glaze to become cloudy and significantly reducing its transparency. Furthermore, because the inner surface of dark-colored tiles shows more wear than that of light-colored tiles, it is generally more difficult to improve the wear resistance of dark-colored glazed tiles. Currently, the highest wear resistance rating for dark-colored tiles is typically only level 3 (750 revolutions).

[0004] Therefore, there is an urgent need for a method to prepare high-transparency and wear-resistant glazed tiles that can simultaneously achieve good transparency, color, and wear resistance. Summary of the Invention

[0005] The main objective of this invention is to propose a method for preparing high-transparency, wear-resistant polished glazed tiles. The resulting high-transparency, wear-resistant polished glazed tiles have high transparency, good color development, and excellent wear resistance, thus overcoming the problem in the prior art that transparency, color development, and wear resistance cannot be simultaneously achieved.

[0006] To achieve the above objectives, the present invention provides a method for preparing high-transparency, wear-resistant glazed bricks, comprising the following steps:

[0007] (1) Prepare ceramic blanks, press the ceramic blanks, and dry them to obtain the blank layer;

[0008] (2) Apply a base glaze to the surface of the body layer to obtain a base glaze layer;

[0009] (3) Inkjet printing is performed on the surface of the base glaze layer to obtain an inkjet printed layer;

[0010] (4) According to the formula of the first glaze paste raw materials, add 50-70 parts of printing paste, 8-15 parts of printing oil, and 2-5 parts of water, and ball mill to obtain the first glaze paste. Apply the first glaze paste to the surface of the inkjet printing layer to obtain the first glaze layer. The raw material components of the first glaze paste, by mass parts, include 26-35 parts of 806-1 frit, 20-28 parts of potassium feldspar, 2-7 parts of calcined zinc oxide, 2-5 parts of calcined alumina, 11-16 parts of dolomite, 12-18 parts of quartz, 2-5 parts of barium carbonate, 4-9 parts of kaolin, and 2-5 parts of zirconium oxide.

[0011] (5) According to the formula of the second glaze paste raw materials, add 50-70 parts of printing paste, 8-15 parts of printing oil, and 2-5 parts of water, and ball mill to obtain the second glaze paste. Apply the second glaze paste to the surface of the first glaze layer to obtain the second glaze layer. The raw material components of the second glaze paste, by mass parts, include 12-18 parts of NM-03 frit, 30-38 parts of potassium feldspar, 2-7 parts of calcined zinc oxide, 4-10 parts of white corundum, 4-10 parts of calcined alumina, 11-16 parts of dolomite, 9-13 parts of quartz, 2-5 parts of barium carbonate, 2-6 parts of calcined kaolin, and 6-10 parts of kaolin.

[0012] (6) According to the formula of the third glaze paste raw materials, add 45 to 60 parts of printing oil and 8 to 12 parts of the second glaze paste. After ball milling, the third glaze paste is obtained. The third glaze paste is coated on the surface of the second glaze layer to obtain the third glaze layer. The raw material components of the third glaze paste, in parts by mass, include 6 to 12 parts of NM-03 frit and 12 to 18 parts of 906X frit.

[0013] (7) After drying, the bricks are fired in a kiln and then polished to obtain the high-transparency, wear-resistant glazed bricks.

[0014] This solution applies a three-layer glaze system in stages on the inkjet printing layer. Through the specific formula structure of the three glazes, they work synergistically to obtain polished glazed tiles with high transparency, good color development, and wear resistance. Especially for dark-colored polished glazed tiles where it is difficult to improve wear resistance, it ensures good color development performance of dark inks while also having good hardness and wear resistance.

[0015] Preferably, the chemical composition of the 806-1 frit, by mass percentage, includes: SiO2 38-43%, Al2O3 15-20%, CaO 0-3%, MgO 0-1%, K2O 0-3%, Na2O 4-8%, BaO 15-20%, ZnO 5-10%, and SrO 3-8%.

[0016] The chemical composition of the NM-03 frit, by mass percentage, includes: SiO2 55-60%, Al2O3 26-30%, CaO 3-8%, MgO 0-3%, K2O 0-0.5%, Na2O 3-6%, BaO 0-0.2%, and ZnO 0-3%.

[0017] The chemical composition of the 906X ingot, by mass percentage, includes: SiO2 63-68%, Al2O3 4-8%, CaO 20-25%, MgO 0-5%, K2O 0-5%, Na2O 0-0.6%, BaO 0-0.2%, and ZnO 0-3%.

[0018] The first glaze layer, made with low-temperature frit 806-1 and other components, has high transparency, improving the color transparency of the inkjet printing layer. The second glaze layer uses high-temperature frit NM-03, which, combined with the raw material formula of the second glaze paste, improves wear resistance while maintaining transparency, preventing opacity caused by increasing the aluminum-silicon ratio. The third glaze layer combines NM-03 frit with 906X medium-temperature frit and incorporates a certain amount of the second glaze paste to adjust and lower the firing temperature. This not only avoids underfiring of the glaze surface at high firing temperatures but also improves the melting effect. The combination of the second and third glaze layers significantly improves wear resistance.

[0019] Preferably, in step (4), the first glaze slurry has a fineness of 0-0.05% residue on a 325-mesh sieve and a specific gravity of 1.58-1.63 g / cm³. 3 The glaze application rate is 80-150 g / m². 2 .

[0020] Preferably, in step (5), the second glaze slurry has a fineness of 0-0.05% residue on a 325-mesh sieve and a specific gravity of 1.58-1.63 g / cm³. 3 The glaze application rate is 80-150 g / m². 2 .

[0021] Preferably, in step (6), the third glaze slurry has a fineness of 0.1-0.4% residue on a 325-mesh sieve and a specific gravity of 1.28-1.32 g / cm³. 3 The glaze application rate is 250–400 g / m². 2 .

[0022] Adjusting the fineness and specific gravity of the slurry improves the smoothness of the glaze surface after firing. The third glaze layer has a much higher glaze application rate than the first and second glaze layers, which helps to adjust and lower the firing temperature and improve the melting effect.

[0023] Preferably, in step (4), the first glaze slurry is formed by printing the first glaze layer using a 100-mesh full-through screen.

[0024] Preferably, in step (5), the second glaze slurry is formed by screen printing with a 100-mesh screen.

[0025] Preferably, in step (6), the third glaze layer is formed by spraying with a glaze sprayer.

[0026] The first and second glaze layers are printed using a 100-mesh full-through screen printing process, while the third glaze layer is applied using a spray glaze spraying process, which can better balance color transparency and wear resistance.

[0027] Preferably, in step (7), the polishing step is any one of full polishing, half polishing, or sweep polishing.

[0028] On the other hand, the present invention also proposes a high-transparency, wear-resistant polished glazed tile, which is prepared by the above-mentioned method for preparing high-transparency, wear-resistant polished glazed tiles. The high-transparency, wear-resistant polished glazed tile comprises, from bottom to top, a body layer, a base glaze layer, an inkjet printing layer, and a polished glaze layer; the polished glaze layer comprises, from bottom to top, a first glaze layer, a second glaze layer, and a third glaze layer. The polished glaze layer adopts a three-layer glaze system. The first layer enhances transparency and color development, while the second and third layers jointly improve wear resistance. Furthermore, the three-layer glaze system, as a composite layer structure, exhibits greater wear resistance compared to the single-layer glaze in existing technologies.

[0029] The technical solution provided by this invention has at least the following advantages compared to the prior art:

[0030] 1. The high-transparency and wear-resistant polished glazed tiles prepared by this scheme include a body layer, a base glaze layer, an inkjet printing layer, and a polished glaze layer with a three-layer glaze system. The high-transparency first glaze layer promotes the color development of the inkjet printing layer. The composite effect of the second and third glaze layers achieves high transparency and wear resistance. At the same time, the firing temperature is adjusted to avoid underfiring of the glaze surface. By adjusting the formula structure of the three-layer glaze system, the polished glazed tiles prepared by this scheme have high transparency, good color development, and good hardness and wear resistance.

[0031] 2. The three-layer glaze system used in this solution is particularly suitable for dark-colored glazed tiles, which helps to enhance the color development and transparency of dark inks or prints, and can significantly improve the wear resistance of dark-colored glazed tiles. This solves the problem in existing technologies where dark-colored glazed tiles are difficult to balance color development, transparency, and wear resistance.

[0032] 3. Avoid using the high-alumina silicon system in existing technologies, thereby avoiding the problem of turbidity and reduced transparency of the glaze due to excessive aluminum crystalline phase residue, and achieving better color development and brightness. Detailed Implementation

[0033] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0034] Furthermore, the technical solutions of the various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0035] This invention proposes a method for preparing high-transparency, wear-resistant glazed bricks, comprising the following steps:

[0036] (1) Prepare ceramic blanks, press the ceramic blanks, and dry them to obtain the blank layer;

[0037] (2) Apply a base glaze to the surface of the body layer to obtain a base glaze layer;

[0038] (3) Inkjet printing is performed on the surface of the base glaze layer to obtain an inkjet printed layer;

[0039] (4) According to the formula for the first glaze paste, add 50-70 parts of printing paste, 8-15 parts of printing oil, and 2-5 parts of water, and ball mill to obtain the first glaze paste. The first glaze paste has a fineness of 0-0.05% residue on a 325-mesh sieve and a specific gravity of 1.58-1.63 g / cm³. 3 The glaze application rate is 80-150 g / m². 2 A first glaze is applied to the surface of the inkjet printing layer to obtain a first glaze layer; preferably, the first glaze is formed by screen printing with a 100-mesh screen. The raw material components of the first glaze, by mass parts, include 26-35 parts of 806-1 frit, 20-28 parts of potassium feldspar, 2-7 parts of calcined zinc oxide, 2-5 parts of calcined alumina, 11-16 parts of dolomite, 12-18 parts of quartz, 2-5 parts of barium carbonate, 4-9 parts of kaolin, and 2-5 parts of zirconium oxide.

[0040] (5) According to the formula for the second glaze paste, add 50-70 parts of printing paste, 8-15 parts of printing oil, and 2-5 parts of water, and ball mill to obtain the second glaze paste. The second glaze paste has a fineness of 0-0.05% residue on a 325-mesh sieve and a specific gravity of 1.58-1.63 g / cm³. 3 The glaze application rate is 80-150 g / m². 2A second glaze is applied to the surface of the first glaze layer to obtain a second glaze layer; preferably, the second glaze is formed by screen printing with a 100-mesh screen. The raw material components of the second glaze, by mass parts, include 12-18 parts NM-03 frit, 30-38 parts potassium feldspar, 2-7 parts calcined zinc oxide, 4-10 parts white corundum, 4-10 parts calcined alumina, 11-16 parts dolomite, 9-13 parts quartz, 2-5 parts barium carbonate, 2-6 parts calcined kaolin, and 6-10 parts kaolin.

[0041] (6) According to the formula for the third glaze paste, 45-60 parts of printing ink and 8-12 parts of the second glaze paste are added and ball-milled to obtain the third glaze paste. The third glaze paste has a fineness of 0.1-0.4% residue on a 325-mesh sieve and a specific gravity of 1.28-1.32 g / cm³. 3 The glaze application rate is 250–400 g / m². 2 A third glaze slurry is applied to the surface of the second glaze layer to obtain a third glaze layer; preferably, the third glaze layer is formed by spraying with a glaze sprayer. The raw material components of the third glaze slurry, by mass parts, include 6-12 parts of NM-03 frit and 12-18 parts of 906X frit.

[0042] (7) After drying, the product is fired in a kiln at a temperature of 1210–1230℃ for 1.2–1.4 hours. After polishing, the high-transparency, wear-resistant glazed brick is obtained. Preferably, the polishing step is any one of full polishing, semi-polishing, or sweep polishing.

[0043] To obtain polished glazed tiles that simultaneously achieve both bright color and wear resistance, this solution proposes a method for preparing high-transparency, wear-resistant polished glazed tiles. The resulting high-transparency, wear-resistant polished glazed tiles include a body layer, a base glaze layer, an inkjet printing layer, and a polished glaze layer consisting of a three-layer glaze system composed of a first glaze layer, a second glaze layer, and a third glaze layer. By adjusting the formulation structure of the first, second, and third glaze layers, the first glaze layer achieves high transparency, allowing dark ink to diffuse into the first glaze slurry and clearly display, thus promoting color development. The second and third glaze layers work synergistically to maintain transparency while the third glaze layer adjusts the firing temperature, preventing underfiring of the glaze surface, improving melting effect, enhancing glaze surface smoothness, and significantly improving the wear resistance of the polished glaze layer, resulting in polished glazed tiles with excellent color development, transparency, hardness, and wear resistance.

[0044] It should be noted that existing technologies for improving the wear resistance of glazes typically employ a high-alumina-silicon system formulation, increasing the aluminum content to enhance the glaze's wear resistance. However, this increased aluminum content leads to excessive residual aluminum crystalline phases, causing the glaze to become cloudy and reducing its transparency. Furthermore, the high-alumina-silicon system reduces the glaze's transparency, making it difficult to balance transparency and wear resistance. In contrast, the three-layer glaze system formulation in this solution, through the composite effect of the three layers, maintains transparency while also providing excellent wear resistance.

[0045] Furthermore, the wear resistance of dark-colored glazed tiles is generally more pronounced on their inner surface after wear than that of light-colored tiles. Therefore, improving the wear resistance of dark-colored glazed tiles is usually more difficult, and dark inks or prints require higher standards for color development and transparency. The three-layer glaze system provided in this solution does not contain any dark-colored components. After being applied to the surface of the dark ink or print layer, the dark ink can diffuse into the highly transparent first glaze, thus promoting color development. Through the combination of the second and third glaze layers, transparency is maintained while wear resistance is improved. The three-layer transparent glaze system is also more wear-resistant than a single-layer glaze. Therefore, this solution has a more significant advantage in improving color development, transparency, and wear resistance in the field of dark-colored glazed tiles.

[0046] Specifically, this solution uses low-temperature frit 806-1 frit, combined with other components, to create a first glaze layer with high transparency, improving the color transparency of the inkjet printing layer; the second glaze layer uses high-temperature frit NM-03 frit, combined with the raw material formula of the second glaze slurry, to improve overall wear resistance while maintaining transparency, and to prevent opacity caused by increasing the aluminum-silicon ratio; the third glaze layer is a combination of NM-03 frit and 906X medium-temperature frit, mixed with a certain amount of the second glaze slurry, to adjust and lower the firing temperature, which not only avoids underfiring of the glaze surface at high firing temperatures, but also improves the melting effect. The combination of the second and third glaze layers significantly improves wear resistance.

[0047] Specifically, by mass percentage, the chemical composition of the 806-1 frit includes: SiO2 38-43%, Al2O3 15-20%, CaO 0-3%, MgO 0-1%, K2O 0-3%, Na2O 4-8%, BaO 15-20%, ZnO 5-10%, and SrO 3-8%;

[0048] The chemical composition of the NM-03 frit, by mass percentage, includes: SiO2 55-60%, Al2O3 26-30%, CaO 3-8%, MgO 0-3%, K2O 0-0.5%, Na2O 3-6%, BaO 0-0.2%, and ZnO 0-3%.

[0049] The chemical composition of the 906X ingot, by mass percentage, includes: SiO2 63-68%, Al2O3 4-8%, CaO 20-25%, MgO 0-5%, K2O 0-5%, Na2O 0-0.6%, BaO 0-0.2%, and ZnO 0-3%.

[0050] It should be noted that the body layer in step (1) is made by pressing and drying conventional ceramic body material in the ceramic field, and the base glaze layer in step (2) is a conventional base glaze material in the field. The base glaze layer can cover the body layer and prevent the body layer from affecting the color of the inkjet printing layer. The inkjet printing layer in step (3) is made by inkjet printing or printing conventional color ink in the field according to a preset pattern. The ceramic body material, base glaze and color ink will not be further described here.

[0051] Furthermore, in this scheme, the glaze application rate of the third glaze layer is 250–400 g / m². 2 The third glaze layer is significantly higher than the first and second glaze layers. The firing temperature can be adjusted through the third glaze layer to avoid underfiring of the glaze surface. At the same time, the third glaze layer is mixed with an appropriate amount of the second glaze slurry, which helps the second and third glaze layers to fuse together. This helps to ensure the hardness and wear resistance of the glazed tiles after firing. This ensures that the surface of the glazed tiles, whether fully polished or treated with sweeping / semi-polishing methods, can meet the hardness and wear resistance requirements of production.

[0052] The technical solution of the present invention will be further described in detail below with reference to specific embodiments. It should be understood that the following embodiments are only used to explain the present invention and are not intended to limit the present invention.

[0053] The specific chemical composition of each raw material in the following examples is detailed in the table below (in mass percentage, unit is %):

[0054] Raw material name <![CDATA[SiO2]]> <![CDATA[Al2O3]]> <![CDATA[Fe2O3]]> <![CDATA[TiO2]]> CaO MgO <![CDATA[K2O]]> <![CDATA[Na2O]]> ZnO SrO Potassium feldspar 63.19 21.77 0.44 - 0.48 0.30 12.76 0.42 - - Calcination of zinc oxide 0.05 0.02 - - 0.02 0.03 0.01 0.01 99.70 - Calcinated alumina 0.20 99.70 - - - - - - - - dolomite 0.68 0.50 0.10 - 57.25 41.36 0.04 0.05 - - quartz 99.73 0.19 - - 0.03 0.04 - - - - Kaolin 58.68 28.36 0.12 - 0.44 0.09 4.25 6.16 - - White corundum 0.04 99.14 0.01 - 0.05 - 0.07 0.30 - - Calcinated kaolin 52.14 45.18 0.43 1.02 0.56 0.34 0.14 0.10 - - 806-1 Fusing 51.46 19.89 - - 2.65 1.79 2.72 6.37 8.49 6.08 NM-03 frit 57.61 28.01 - - 5.61 1.19 0.29 4.81 1.98 - 906X Fuse 64.55 6.11 - - 22.05 2.48 2.39 0.36 1.2 -

[0055] Note: If the chemical composition of the raw materials in the table above is less than 100%, it is mainly due to the presence of other undetected impurities.

[0056] Those skilled in the art should know that the ceramic raw materials and frit-like raw materials used in this solution will produce gaseous products such as water of crystallization, CO2, and SO2 when calcined at high temperatures, which means that a small amount of loss on ignition will be generated.

[0057] To better compare the performance of this solution when applied to dark-colored and light-colored glazed tiles, the following examples and comparative examples all use two types of body materials: Deep Plain White and Yashi White, from Qingyuan Jianyi Ceramics Co., Ltd.

[0058] Example 1

[0059] A method for preparing a high-transparency, wear-resistant glazed tile includes the following steps:

[0060] (1) Prepare ceramic blanks, press the ceramic blanks, and dry them to obtain the blank layer;

[0061] (2) Apply a base glaze to the surface of the body layer to obtain a base glaze layer;

[0062] (3) Inkjet printing is performed on the surface of the base glaze layer to obtain an inkjet printed layer;

[0063] (4) Weigh out 26 parts of 806-1 frit, 24 parts of potassium feldspar, 5 parts of calcined zinc oxide, 3 parts of calcined alumina, 14 parts of dolomite, 16 parts of quartz, 3 parts of barium carbonate, 9 parts of kaolin, and 3 parts of zirconium oxide. Add 60 parts of printing paste, 11 parts of printing oil, and 3 parts of water. After ball milling for 10 minutes, obtain a fineness of 0.03% residue on a 325-mesh sieve and a specific gravity of 1.58 g / cm³. 3 The first glaze slurry is printed onto the body layer using a 100-mesh full-through screen to obtain the first glaze layer, with a glaze application amount of 80g / m². 2 ;

[0064] (5) Weigh 12 parts of NM-03 frit, 35 parts of potassium feldspar, 3 parts of calcined zinc oxide, 6 parts of white corundum, 6 parts of calcined alumina, 14 parts of dolomite, 11 parts of quartz, 3 parts of barium carbonate, 6 parts of calcined kaolin, and 9 parts of kaolin. Add 60 parts of printing paste, 11 parts of printing oil, and 3 parts of water. After ball milling for 10 minutes, the resulting product has a fineness of 0.03% residue on a 325-mesh sieve and a specific gravity of 1.58 g / cm³. 3 The second glaze is applied by printing a layer of the second glaze onto the first glaze layer using a 100-mesh full-through screen, with a glaze application rate of 80g / m². 2 ;

[0065] (6) Weigh 6 parts of NM-03 frit and 12 parts of 906X frit, add 53 parts of printing ink and 8 parts of the second glaze slurry, and ball mill for 30 minutes to obtain a fineness of 0.2% residue on a 325-mesh sieve and a specific gravity of 1.28 g / cm³. 3 The third glaze layer is obtained by spraying the third glaze layer onto the second glaze layer using a glazing sprayer, with an application rate of 250g / m². 2 ;

[0066] (7) After drying, the bricks are fired in a kiln at a temperature of 1210℃ for 1.2 hours. After polishing, the high-transparency and wear-resistant glazed bricks are obtained.

[0067] Example 2

[0068] A method for preparing a high-transparency, wear-resistant glazed tile includes the following steps:

[0069] (1) Prepare ceramic blanks, press the ceramic blanks, and dry them to obtain the blank layer;

[0070] (2) Apply a base glaze to the surface of the body layer to obtain a base glaze layer;

[0071] (3) Inkjet printing is performed on the surface of the base glaze layer to obtain an inkjet printed layer;

[0072] (4) Weigh out 26 parts of 806-1 frit, 20 parts of potassium feldspar, 7 parts of calcined zinc oxide, 3 parts of calcined alumina, 14 parts of dolomite, 17 parts of quartz, 3 parts of barium carbonate, 9 parts of kaolin, and 3 parts of zirconium oxide. Add 60 parts of printing paste, 11 parts of printing oil, and 3 parts of water. After ball milling for 10 minutes, obtain a fineness of 0.03% residue on a 325-mesh sieve and a specific gravity of 1.58 g / cm³. 3 The first glaze slurry is applied to the body layer using a 100-mesh screen to form the first glaze layer, with a glaze application rate of 100g / m². 2 ;

[0073] (5) Weigh 12 parts of NM-03 frit, 35 parts of potassium feldspar, 2 parts of calcined zinc oxide, 6 parts of white corundum, 7 parts of calcined alumina, 16 parts of dolomite, 12 parts of quartz, 3 parts of barium carbonate, 4 parts of calcined kaolin, and 8 parts of kaolin. Add 60 parts of printing paste, 11 parts of printing oil, and 3 parts of water. After ball milling for 10 minutes, the resulting product has a fineness of 0.03% residue on a 325-mesh sieve and a specific gravity of 1.58 g / cm³. 3 The second glaze is applied by printing a layer of the second glaze onto the first glaze layer using a 100-mesh screen, with an application rate of 100g / m². 2 ;

[0074] (6) Weigh 6 parts of NM-03 frit and 12 parts of 906X frit, add 60 parts of printing ink and 8 parts of the second glaze slurry, and ball mill for 30 minutes to obtain a fineness of 0.2% residue on a 325-mesh sieve and a specific gravity of 1.28 g / cm³. 3 The third glaze layer is obtained by spraying the third glaze layer onto the second glaze layer using a glazing sprayer, with an application rate of 250g / m². 2 ;

[0075] (7) After drying, the bricks are fired in a kiln at a temperature of 1210℃ for 1.2 hours. After polishing, the high-transparency and wear-resistant glazed bricks are obtained.

[0076] Example 3 (This example is a formulation example)

[0077] A method for preparing a high-transparency, wear-resistant glazed tile includes the following steps:

[0078] (1) Prepare ceramic blanks, press the ceramic blanks, and dry them to obtain the blank layer;

[0079] (2) Apply a base glaze to the surface of the body layer to obtain a base glaze layer;

[0080] (3) Inkjet printing is performed on the surface of the base glaze layer to obtain an inkjet printed layer;

[0081] (4) Weigh out 30 parts of 806-1 frit, 24 parts of potassium feldspar, 5 parts of calcined zinc oxide, 3 parts of calcined alumina, 14 parts of dolomite, 15 parts of quartz, 3 parts of barium carbonate, 6 parts of kaolin, and 3 parts of zirconium oxide. Add 60 parts of printing paste, 11 parts of printing oil, and 3 parts of water. After ball milling for 10 minutes, obtain a fineness of 0.03% residue on a 325-mesh sieve and a specific gravity of 1.60 g / cm³. 3 The first glaze slurry is printed onto the body layer using a 100-mesh full-through screen to obtain the first glaze layer, with a glaze application amount of 115g / m². 2 ;

[0082] (5) Weigh out 15 parts of NM-03 frit, 35 parts of potassium feldspar, 3 parts of calcined zinc oxide, 6 parts of white corundum, 6 parts of calcined alumina, 14 parts of dolomite, 11 parts of quartz, 3 parts of barium carbonate, 4 parts of calcined kaolin, and 8 parts of kaolin. Add 60 parts of printing paste, 11 parts of printing oil, and 3 parts of water. After ball milling for 10 minutes, obtain a fineness of 0.03% residue on a 325-mesh sieve and a specific gravity of 1.60 g / cm³. 3 The second glaze is applied by printing a layer of the second glaze onto the first glaze layer using a 100-mesh screen, with a glaze application rate of 115g / m². 2 ;

[0083] (6) Weigh 9 parts of NM-03 frit and 15 parts of 906X frit, add 53 parts of printing ink and 10 parts of the second glaze slurry, and ball mill for 30 minutes to obtain a fineness of 0.2% residue on a 325-mesh sieve and a specific gravity of 1.30 g / cm³. 3 The third glaze layer is obtained by spraying the third glaze layer onto the second glaze layer using a glazing sprayer, with an application rate of 283 g / m². 2 ;

[0084] (7) After drying, the bricks are fired in a kiln at a temperature of 1220℃ for 1.3 hours. After polishing, the high-transparency and wear-resistant glazed bricks are obtained.

[0085] Example 4

[0086] A method for preparing a high-transparency, wear-resistant glazed tile includes the following steps:

[0087] (1) Prepare ceramic blanks, press the ceramic blanks, and dry them to obtain the blank layer;

[0088] (2) Apply a base glaze to the surface of the body layer to obtain a base glaze layer;

[0089] (3) Inkjet printing is performed on the surface of the base glaze layer to obtain an inkjet printed layer;

[0090] (4) Weigh out 35 parts of 806-1 frit, 24 parts of potassium feldspar, 3 parts of calcined zinc oxide, 3 parts of calcined alumina, 14 parts of dolomite, 13 parts of quartz, 2 parts of barium carbonate, 4 parts of kaolin, and 3 parts of zirconium oxide. Add 70 parts of printing paste, 15 parts of printing oil, and 3 parts of water. After ball milling for 10 minutes, obtain a fineness of 0.03% residue on a 325-mesh sieve and a specific gravity of 1.63 g / cm³. 3 The first glaze slurry is printed onto the body layer using a 100-mesh full-through screen to obtain the first glaze layer, with a glaze application amount of 135g / m². 2 ;

[0091] (5) Weigh out 18 parts of NM-03 frit, 35 parts of potassium feldspar, 3 parts of calcined zinc oxide, 6 parts of white corundum, 6 parts of calcined alumina, 14 parts of dolomite, 11 parts of quartz, 3 parts of barium carbonate, 6 parts of calcined kaolin, and 9 parts of kaolin. Add 70 parts of printing paste, 15 parts of printing oil, and 3 parts of water. After ball milling for 10 minutes, obtain a fineness of 0.03% residue on a 325-mesh sieve and a specific gravity of 1.63 g / cm³. 3 The second glaze is applied by printing a layer of the second glaze onto the first glaze layer using a 100-mesh screen, with a glaze application rate of 135g / m². 2 ;

[0092] (6) Weigh 12 parts of NM-03 frit and 18 parts of 906X frit, add 60 parts of printing ink and 12 parts of the second glaze slurry, and ball mill for 30 minutes to obtain a fineness of 0.2% residue on a 325-mesh sieve and a specific gravity of 1.32 g / cm³. 3 The third glaze layer is obtained by spraying the third glaze layer onto the second glaze layer using a glazing sprayer, with an application rate of 325g / m². 2 ;

[0093] (7) After drying, the bricks are fired in a kiln at a temperature of 1230℃ for 1.4 hours. After polishing, the high-transparency and wear-resistant glazed bricks are obtained.

[0094] Example 5

[0095] A method for preparing a high-transparency, wear-resistant glazed tile includes the following steps:

[0096] (1) Prepare ceramic blanks, press the ceramic blanks, and dry them to obtain the blank layer;

[0097] (2) Apply a base glaze to the surface of the body layer to obtain a base glaze layer;

[0098] (3) Inkjet printing is performed on the surface of the base glaze layer to obtain an inkjet printed layer;

[0099] (4) Weigh out 35 parts of 806-1 frit, 28 parts of potassium feldspar, 4 parts of calcined zinc oxide, 2 parts of calcined alumina, 11 parts of dolomite, 12 parts of quartz, 2 parts of barium carbonate, 4 parts of kaolin, and 2 parts of zirconium oxide. Add 70 parts of printing paste, 15 parts of printing oil, and 3 parts of water. After ball milling for 10 minutes, obtain a fineness of 0.03% residue on a 325-mesh sieve and a specific gravity of 1.63 g / cm³. 3 The first glaze slurry is printed onto the body layer using a 100-mesh full-through screen to obtain the first glaze layer, with a glaze application amount of 150g / m². 2 ;

[0100] (5) Weigh out 18 parts of NM-03 frit, 35 parts of potassium feldspar, 3 parts of calcined zinc oxide, 6 parts of white corundum, 6 parts of calcined alumina, 14 parts of dolomite, 11 parts of quartz, 3 parts of barium carbonate, 6 parts of calcined kaolin, and 9 parts of kaolin. Add 70 parts of printing paste, 15 parts of printing oil, and 3 parts of water. After ball milling for 10 minutes, obtain a fineness of 0.03% residue on a 325-mesh sieve and a specific gravity of 1.63 g / cm³. 3 The second glaze is applied by printing a layer of the second glaze onto the first glaze layer using a 100-mesh full-through screen, with a glaze application rate of 150g / m². 2 ;

[0101] (6) Weigh 12 parts of NM-03 frit and 18 parts of 906X frit, add 60 parts of printing ink and 12 parts of the second glaze slurry, and ball mill for 30 minutes to obtain a fineness of 0.2% residue on a 325-mesh sieve and a specific gravity of 1.32 g / cm³. 3 The third glaze layer is obtained by spraying the third glaze layer onto the second glaze layer using a glazing sprayer, with an application rate of 400g / m². 2 ;

[0102] (7) After drying, the bricks are fired in a kiln at a temperature of 1230℃ for 1.4 hours. After polishing, the high-transparency and wear-resistant glazed bricks are obtained.

[0103] Comparative Example 1

[0104] This comparative example uses the same parameters and preparation process as Example 3, the only difference being that the 806-1 frit in the first glaze slurry raw material component is adjusted to 15 parts.

[0105] Comparative Example 2

[0106] This comparative example uses the same parameters and preparation process as Example 3, the only difference being that the NM-03 frit in the second glaze slurry raw material component is adjusted to 10 parts, and the NM-03 frit in the third glaze slurry raw material component is adjusted to 5 parts.

[0107] Comparative Example 3

[0108] A method for preparing a high-transparency, wear-resistant glazed tile includes the following steps:

[0109] (1) Prepare ceramic blanks, press the ceramic blanks, and dry them to obtain the blank layer;

[0110] (2) Apply a base glaze to the surface of the body layer to obtain a base glaze layer;

[0111] (3) Inkjet printing is performed on the surface of the base glaze layer to obtain an inkjet printed layer;

[0112] (4) Weigh out 30 parts of 806-1 frit, 24 parts of potassium feldspar, 5 parts of calcined zinc oxide, 3 parts of calcined alumina, 14 parts of dolomite, 15 parts of quartz, 3 parts of barium carbonate, 6 parts of kaolin, and 3 parts of zirconium oxide. Add 60 parts of printing paste, 11 parts of printing oil, and 3 parts of water. After ball milling for 10 minutes, obtain a fineness of 0.03% residue on a 325-mesh sieve and a specific gravity of 1.60 g / cm³. 3 The first glaze slurry is printed onto the body layer using a 100-mesh full-through screen to obtain the first glaze layer, with a glaze application amount of 115g / m². 2 ;

[0113] (5) After drying, the bricks are fired in a kiln at a temperature of 1220℃ for 1.3 hours. After polishing, the high-transparency and wear-resistant glazed bricks are obtained.

[0114] Comparative Example 4

[0115] A method for preparing a high-transparency, wear-resistant glazed tile includes the following steps:

[0116] (1) Prepare ceramic blanks, press the ceramic blanks, and dry them to obtain the blank layer;

[0117] (2) Apply a base glaze to the surface of the body layer to obtain a base glaze layer;

[0118] (3) Inkjet printing is performed on the surface of the base glaze layer to obtain an inkjet printed layer;

[0119] (4) Weigh out 30 parts of 806-1 frit, 24 parts of potassium feldspar, 5 parts of calcined zinc oxide, 3 parts of calcined alumina, 14 parts of dolomite, 15 parts of quartz, 3 parts of barium carbonate, 6 parts of kaolin, and 3 parts of zirconium oxide. Add 60 parts of printing paste, 11 parts of printing oil, and 3 parts of water. After ball milling for 10 minutes, obtain a fineness of 0.03% residue on a 325-mesh sieve and a specific gravity of 1.60 g / cm³. 3 The first glaze slurry is printed onto the body layer using a 100-mesh full-through screen to obtain the first glaze layer, with a glaze application amount of 115g / m². 2 ;

[0120] (5) Weigh out 15 parts of NM-03 frit, 35 parts of potassium feldspar, 3 parts of calcined zinc oxide, 6 parts of white corundum, 6 parts of calcined alumina, 14 parts of dolomite, 11 parts of quartz, 3 parts of barium carbonate, 4 parts of calcined kaolin, and 8 parts of kaolin. Add 60 parts of printing paste, 11 parts of printing oil, and 3 parts of water. After ball milling for 10 minutes, obtain a fineness of 0.03% residue on a 325-mesh sieve and a specific gravity of 1.60 g / cm³. 3 The second glaze is applied by printing a layer of the second glaze onto the first glaze layer using a 100-mesh screen, with a glaze application rate of 115g / m². 2 ;

[0121] (6) After drying, the bricks are fired in a kiln at a temperature of 1220℃ for 1.3 hours. After polishing, the high-transparency and wear-resistant glazed bricks are obtained.

[0122] Comparative Example 5

[0123] A method for preparing a high-transparency, wear-resistant glazed tile includes the following steps:

[0124] (1) Prepare ceramic blanks, press the ceramic blanks, and dry them to obtain the blank layer;

[0125] (2) Apply a base glaze to the surface of the body layer to obtain a base glaze layer;

[0126] (3) Inkjet printing is performed on the surface of the base glaze layer to obtain an inkjet printed layer;

[0127] (4) Weigh out 30 parts of 806-1 frit, 24 parts of potassium feldspar, 5 parts of calcined zinc oxide, 3 parts of calcined alumina, 14 parts of dolomite, 15 parts of quartz, 3 parts of barium carbonate, 6 parts of kaolin, and 3 parts of zirconium oxide. Add 60 parts of printing paste, 11 parts of printing oil, and 3 parts of water. After ball milling for 10 minutes, obtain a fineness of 0.03% residue on a 325-mesh sieve and a specific gravity of 1.60 g / cm³. 3 The first glaze slurry is printed onto the body layer using a 100-mesh full-through screen to obtain the first glaze layer, with a glaze application amount of 115g / m². 2 ;

[0128] (5) Weigh out 15 parts of NM-03 frit, 35 parts of potassium feldspar, 3 parts of calcined zinc oxide, 6 parts of white corundum, 6 parts of calcined alumina, 14 parts of dolomite, 11 parts of quartz, 3 parts of barium carbonate, 4 parts of calcined kaolin, and 8 parts of kaolin. Add 60 parts of printing paste, 11 parts of printing oil, and 3 parts of water. After ball milling for 10 minutes, obtain a fineness of 0.03% residue on a 325-mesh sieve and a specific gravity of 1.60 g / cm³. 3 The second glaze is applied by printing a layer of the second glaze onto the first glaze layer using a 100-mesh screen, with a glaze application rate of 115g / m². 2 ;

[0129] (6) Weigh 9 parts of NM-03 frit and 15 parts of 906X frit, add 53 parts of printing ink and 10 parts of the second glaze slurry, and ball mill for 30 minutes to obtain a fineness of 0.2% residue on a 325-mesh sieve and a specific gravity of 1.30 g / cm³. 3 The third glaze layer is obtained by printing a layer of the third glaze onto the second glaze layer using a 100-mesh full-through screen, with a glaze application rate of 283g / m². 2 ;

[0130] (7) After drying, the bricks are fired in a kiln at a temperature of 1220℃ for 1.3 hours. After polishing, the high-transparency and wear-resistant glazed bricks are obtained.

[0131] Performance testing

[0132] The glaze effects of the high-transparency, wear-resistant polished glazed tiles prepared in Examples 1-3 and Comparative Examples 1-5 were observed, and their performance parameters were tested according to conventional wear resistance testing methods in the ceramics field. The testing methods are as follows:

[0133] Abrasion resistance test: The abrasion resistance of the glaze surface of the product is tested using the test method in GB / T3810.7-2016 "Test methods for ceramic tiles - Part 7: Determination of abrasion resistance of glazed tile surfaces". The abrasion resistance of the ceramic tile is evaluated by placing abrasive media on the glaze surface and rotating it, and observing and comparing the worn sample with the unworn sample.

[0134] The test results of Examples 1-3 and Comparative Examples 1-5 are shown in Table 1.

[0135] Table 1

[0136]

[0137]

[0138] Note: Glaze effect grading definition: Level 5: Bright color, high transparency; Level 4: Relatively bright color, relatively high transparency; Level 3: Ordinary color, average transparency; Level 2: Poor color, poor transparency, surface slightly milky; Level 1: Poor color, poor transparency, surface severely milky.

[0139] As shown in Table 1, the high-transparency and wear-resistant glazed tiles prepared in Examples 1-5 exhibit better glaze effects and wear resistance than Comparative Examples 1 and 2. This indicates that when the amount of 806-1 floc added to the first glaze slurry is adjusted outside the range specified in this scheme, the glaze effect of the resulting glazed tiles decreases significantly. Similarly, when the amount of NM-03 floc added to the second and third glaze slurries is adjusted outside the range specified in this scheme, the wear resistance of the resulting glazed tiles decreases. It should be noted that Comparative Examples 1 and 2 are only illustrative examples. To save space, after similar adjustments to the remaining components in the formulation system described in this invention, the glazed tiles obtained after firing all show varying degrees of decrease in glaze effects and wear resistance, which will not be elaborated here.

[0140] The glazed tile prepared in Comparative Example 3 only has a first glaze layer. Although it has bright color and high transparency, its wear resistance is low. The glazed tile prepared in Comparative Example 4 only has a first glaze layer and a second glaze layer. It has bright color and high transparency, and its wear resistance is improved compared to Comparative Example 3, but it is still low. A comparison of the results of Example 3 with Comparative Examples 3 and 4 shows that only when the first glaze layer, the second glaze layer, and the third glaze layer are present simultaneously can the glazed tile prepared have both bright color and high transparency while maintaining good wear resistance.

[0141] Although Comparative Example 5 has a first glaze layer, a second glaze layer, and a third glaze layer, the third glaze layer is also printed using a 100-mesh full-through screen, which has excellent wear resistance. The resulting brick surface has ordinary color and average glaze transparency, indicating that the preparation process of the third glaze layer using a spray glaze sprayer is more conducive to improving the color and brightness of the polished glazed brick.

[0142] It should be noted that since the test results compare worn and unworn samples, the wear resistance of glazed tiles is evaluated by whether visible wear marks are observed. The inner surface of light-colored tiles shows less wear than that of dark-colored tiles. Therefore, the wear resistance of light-colored tiles (light-colored tiles) is higher than that of dark-colored tiles (dark-colored tiles). Improving the wear resistance of dark-colored tiles is a well-known industry challenge. Table 2 shows that the polished glazed tiles made using the three-layer glaze system of this scheme improve the wear resistance of dark-colored tiles to level 3 at 1500 revolutions, a significant improvement. This indicates that this scheme has a significant effect on improving the wear resistance of dark-colored polished glazed tiles.

[0143] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A method for preparing a high-transparency, wear-resistant polished glazed tile, characterized in that, Includes the following steps: (1) Prepare ceramic blanks, press the ceramic blanks, and dry them to obtain the blank layer; (2) Apply a base glaze to the surface of the body layer to obtain a base glaze layer; (3) Inkjet printing is performed on the surface of the base glaze layer to obtain an inkjet printed layer; (4) According to the formula of the first glaze paste raw materials, add 50-70 parts of printing paste, 8-15 parts of printing oil, and 2-5 parts of water, and ball mill to obtain the first glaze paste. Apply the first glaze paste to the surface of the inkjet printing layer to obtain the first glaze layer. The raw material components of the first glaze paste, by mass parts, include 26-35 parts of 806-1 frit, 20-28 parts of potassium feldspar, 2-7 parts of calcined zinc oxide, 2-5 parts of calcined alumina, 11-16 parts of dolomite, 12-18 parts of quartz, 2-5 parts of barium carbonate, 4-9 parts of kaolin and 2-5 parts of zirconium oxide. (5) According to the formula of the second glaze paste raw materials, add 50-70 parts of printing paste, 8-15 parts of printing oil, and 2-5 parts of water. After ball milling, the second glaze paste is obtained. The second glaze paste is then coated on the surface of the first glaze layer to obtain the second glaze layer. The raw material components of the second glaze paste, by mass parts, include 12-18 parts of NM-03 frit, 30-38 parts of potassium feldspar, 2-7 parts of calcined zinc oxide, 4-10 parts of white corundum, 4-10 parts of calcined alumina, 11-16 parts of dolomite, 9-13 parts of quartz, 2-5 parts of barium carbonate, 2-6 parts of calcined kaolin, and 6-10 parts of kaolin. (6) According to the formula of the third glaze paste raw materials, add 45 to 60 parts of printing oil and 8 to 12 parts of the second glaze paste. After ball milling, the third glaze paste is obtained. The third glaze paste is coated on the surface of the second glaze layer to obtain the third glaze layer. The raw material components of the third glaze paste, by mass, include 6 to 12 parts of NM-03 frit and 12 to 18 parts of 906X frit. (7) After drying, the bricks are fired in a kiln and polished to obtain the high-transparency and wear-resistant glazed bricks. The chemical composition of the 806-1 ingot, by mass percentage, includes: SiO2 38-43%, Al2O3 15-20%, CaO 0-3%, MgO 0-1%, K2O 0-3%, Na2O 4-8%, BaO 15-20%, ZnO 5-10%, and SrO 3-8%; The chemical composition of the NM-03 frit, by mass percentage, includes: SiO2 55-60%, Al2O3 26-30%, CaO 3-8%, MgO 0-3%, K2O 0-0.5%, Na2O 3-6%, BaO 0-0.2%, and ZnO 0-3%. The chemical composition of the 906X ingot, by mass percentage, includes: SiO2 63-68%, Al2O3 4-8%, CaO 20-25%, MgO 0-5%, K2O 0-5%, Na2O 0-0.6%, BaO 0-0.2%, and ZnO 0-3%.

2. The method for preparing a high-transparency, wear-resistant polished glazed tile as described in claim 1, characterized in that, In step (4), the first glaze slurry has a fineness of 0-0.05% residue on a 325-mesh sieve and a specific gravity of 1.58-1.63 g / cm³. 3 The glaze application amount is 80-150g / m². 2 .

3. The method for preparing a high-transparency, wear-resistant polished glazed tile as described in claim 1, characterized in that, In step (5), the second glaze slurry has a fineness of 0-0.05% residue on a 325-mesh sieve and a specific gravity of 1.58-1.63 g / cm³. 3 The glaze application amount is 80-150g / m². 2 .

4. The method for preparing a high-transparency, wear-resistant polished glazed tile as described in claim 1, characterized in that, In step (6), the third glaze slurry has a fineness of 0.1-0.4% residue on a 325-mesh sieve and a specific gravity of 1.28-1.32 g / cm³. 3 The glaze application rate is 250–400 g / m². 2 .

5. The method for preparing a high-transparency, wear-resistant polished glazed tile as described in claim 1, characterized in that, In step (4), the first glaze paste is formed by printing the first glaze layer using a 100-mesh full-through screen.

6. The method for preparing a high-transparency, wear-resistant polished glazed tile as described in claim 1, characterized in that, In step (5), the second glaze is formed by printing the second glaze layer using a 100-mesh full-through screen.

7. The method for preparing a high-transparency, wear-resistant glazed brick as described in claim 1, characterized in that, In step (6), the third glaze layer is formed by spraying with a glaze sprayer.

8. The method for preparing a high-transparency, wear-resistant polished glazed tile as described in claim 1, characterized in that, In step (7), the polishing step is any one of full polishing, half polishing or sweep polishing.

9. A high-transparency, wear-resistant glazed tile, characterized in that, The high-transparency, wear-resistant polished glazed tile is prepared by the preparation method of any one of claims 1-8, wherein the high-transparency, wear-resistant polished glazed tile comprises a body layer, a base glaze layer, an inkjet printing layer and a polished glaze layer arranged sequentially from bottom to top; the polished glaze layer comprises a first glaze layer, a second glaze layer and a third glaze layer arranged sequentially from bottom to top.

Images