A method for preparing three-dimensional colored glazed tiles and three-dimensional colored glazed tiles

Abstract

This invention provides a method for preparing three-dimensional colored glazed tiles and the three-dimensional colored glazed tiles themselves. The method for preparing three-dimensional colored glazed tiles includes: preparing colored porcelain particles of different colors, and mixing the colored porcelain particles of different colors in a predetermined ratio to obtain a colored porcelain particle mixture; adding a base glaze and printing paste to the colored porcelain particle mixture, and stirring to obtain a printing glaze of a predetermined color system; printing the printing glaze onto a ceramic body coated with slip by screen printing to obtain a glazed body; and firing the glazed body at high temperature to obtain a three-dimensional colored glazed tile. This invention, by mixing the prepared colored porcelain particles of different colors in different proportions and combining this with screen printing to form different patterns, results in a wide variety of pattern colors and produces a 3D three-dimensional effect on the body surface, solving the problem of small color differences in patterns among various ceramic products in the prior art.

Description

Technical Field

[0001] This invention relates to the field of ceramic production technology, and in particular to a method for preparing three-dimensional colored glazed tiles and the three-dimensional colored glazed tiles themselves. Background Technology

[0002] With the increasing maturity of inkjet printing technology in the ceramic building materials industry, it has quickly replaced traditional screen printing and roller printing, becoming the main printing method. However, firstly, inkjet printing controls the printed pattern through inkjet software. As long as the inkjet file is the same, the resulting pattern texture will be almost identical. Furthermore, inkjet files can be obtained by scanning products already on the market. This leads to severe homogenization of product pattern designs, resulting in low added value. Secondly, because the solid particles of inkjet ink are extremely small, they react more easily with glazes. Therefore, the color gamut of inkjet ink is far smaller than that of traditional screen printing. This narrow color gamut significantly limits the expression of texture, making it difficult to personalize the color tones of products; that is, the color differences between patterns on various ceramic products are minimal. Additionally, both traditional screen printing and roller printing, as well as current inkjet printing, produce flat patterns, which is another important reason for the severe homogenization of products in the current market.

[0003] Therefore, existing technologies have shortcomings and need to be improved and developed. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a method for preparing three-dimensional colored glazed tiles and three-dimensional colored glazed tiles in view of the above-mentioned defects of the prior art. It aims to solve the problem that the color gamut of inkjet ink is too narrow and the pattern effect is planar in the prior art, which leads to small differences in the pattern color of various ceramic products.

[0005] The technical solution adopted by this invention to solve the technical problem is as follows:

[0006] The first aspect of this application provides a method for preparing three-dimensional colored glazed tiles, comprising:

[0007] Different colored ceramic particles were prepared, and the different colored ceramic particles were mixed in a predetermined ratio to obtain a colored ceramic particle mixture.

[0008] Add a base glaze and printing paste to the mixture of colored ceramic particles, and stir to obtain a printing glaze of a predetermined color.

[0009] The printing glaze is printed onto a ceramic body coated with slip by screen printing to obtain a glazed body.

[0010] The glazed body is fired at high temperature to obtain a three-dimensional colored glazed tile.

[0011] Based on the above technical means, the embodiments of this application mix different colored ceramic particles of different colors in different proportions and then combine them with screen printing to form different patterns, resulting in a variety of pattern colors and a 3D effect on the blank surface. This solves the problem that the color gamut of inkjet ink is too narrow and the pattern effect is planar in the prior art, which leads to small differences in the pattern colors of various ceramic products.

[0012] In one embodiment of this application, the preparation of colored ceramic particles of different colors includes:

[0013] The colored paste was prepared according to the predetermined colored paste raw material formula;

[0014] The colored slurry is processed into a colored ceramic plate with a predetermined water absorption rate;

[0015] The colored ceramic slab is crushed and sieved to obtain colored ceramic particles within a predetermined particle size range.

[0016] Based on the aforementioned technical means, the colored ceramic particles in this application's embodiments compensate for the narrow color gamut of current ceramic inks, resulting in richer and more natural texture expression. The color combinations of different colored ceramic particles can express more layers, producing a three-dimensional effect and greater artistry. Furthermore, because ceramic inkjet inks are highly oily, when the ink volume is large, ink droplets are prone to mutual dissolution, which is detrimental to the expression of fine details. However, using colored ceramic particles can achieve artistic effects that current inkjet technology cannot achieve.

[0017] In one embodiment of this application, processing the colored slurry into a colored ceramic plate with a predetermined water absorption rate includes:

[0018] The colored slurry is spray-granulated and pressed into shape to obtain a colored preform.

[0019] The colored blank is fired to obtain a colored porcelain plate with a predetermined water absorption rate.

[0020] Based on the above-mentioned technical means, the embodiments of this application can ensure that the colored slurry can be rapidly formed into tiny, uniformly sized particles in a short time through spray granulation technology, which not only improves the uniformity of the particles, but also makes the physicochemical properties of the particles more excellent; through pressing molding, the density and uniformity of the colored body can be further ensured, laying the foundation for subsequent firing of high-quality colored ceramic plates.

[0021] In one embodiment of this application, the predetermined water absorption rate is less than or equal to 0.3%, and the predetermined particle size range is from the aperture of a 60-mesh sieve to the aperture of a 30-mesh sieve.

[0022] Based on the aforementioned technical means, the low water absorption rate of the colored ceramic slabs produced in this application indicates a higher density and a more compact internal structure, resulting in better physical and chemical stability. This ensures the stability and dispersibility of the colored ceramic particles in the glaze, thereby improving the durability of the final product. Furthermore, the low water absorption rate also makes the colored ceramic slabs less prone to absorbing moisture, reducing the impact of moisture on the colored ceramic particles and glaze, and preventing problems such as cracking and deformation during firing. The choice of particle size range directly affects the fineness and layering of the pattern. A 60-mesh sieve has a relatively small pore size, producing a delicate effect, while a 30-mesh sieve has a relatively large pore size, producing a rougher texture. This allows the patterns in this application to possess both delicate details and an overall sense of layering. Moreover, by selecting particle sizes within this range, this invention can present different patterns and design styles.

[0023] In one embodiment of this application, the colored slurry raw material formula includes: a colored slurry raw material formula and a white slurry raw material formula.

[0024] Based on the above technical means, the colored slurry raw material formula of this application embodiment includes a colored slurry raw material formula and a white slurry raw material formula, thereby preparing colored porcelain particles and white porcelain particles to improve the glaze layer.

[0025] In one embodiment of this application, the colored slurry raw material formula, by weight, includes: 80-90 parts of preform powder, 9-11 parts of inorganic pigment, and 0-10 parts of calcined talc.

[0026] Based on the above technical means, the embodiments of this application utilize raw material powder, inorganic pigments and calcined talc to prepare colored slurries of different colors, thereby obtaining colored ceramic particles of different colors and improving the diversity of surface colors of ceramic products.

[0027] In one embodiment of this application, the white slurry raw material formula, by weight, includes: 80-90 parts of preform powder, 9-11 parts of zirconium silicate, and 0-10 parts of calcined talc.

[0028] According to the above-mentioned technical means, the embodiments of this application use raw material powder, zirconium silicate and calcined talc to prepare white slurry, obtain white porcelain particles, and then combine them with colored porcelain particles to form a pattern effect with a sharp contrast.

[0029] In one embodiment of this application, the whiteness of the blank powder after firing is greater than or equal to 50 degrees.

[0030] Based on the above technical means, the embodiments of this application, by using high-whiteness blank powder, can more clearly present the color of colored slurry, resulting in higher color reproduction of colored porcelain particles.

[0031] In one embodiment of this application, the chemical composition of the base glaze paste, by mass percentage, includes:

[0032] Loss on ignition 5-11%, SiO2 47-50%, Al2O3 8-9%, Fe2O3 0-0.2%, CaO 11-13%, MgO 2-3%, K2O 2-4%, Na2O 1-2%, ZnO 4-5%, SrO 4-5%, BaO 2-4%.

[0033] Based on the above-mentioned technical means, the embodiments of this application obtain high-quality printing glaze by using reasonable basic glaze chemical composition.

[0034] This application also provides a three-dimensional colored glazed tile, wherein the three-dimensional colored glazed tile is prepared by the three-dimensional colored glazed tile preparation method described above.

[0035] The embodiments of this application achieve the following beneficial effects:

[0036] First, the embodiments of this application mix different colored ceramic particles in different proportions and then combine them with screen printing to form different patterns, resulting in a variety of pattern colors and a 3D effect on the blank surface. This solves the problem in the prior art that the color gamut of inkjet ink is too narrow and the pattern effect is planar, which leads to small differences in the pattern colors of various ceramic products.

[0037] Secondly, the colored ceramic particles in this application's embodiments compensate for the narrow color gamut of current ceramic inks, resulting in richer and more natural texture expression. The color combinations of different colored ceramic particles can create more layers, producing a three-dimensional effect and greater artistry. Furthermore, because ceramic inkjet inks are highly oily, ink droplets are prone to mutual dissolution when the ink volume is large, hindering the expression of fine details. However, using colored ceramic particles can achieve artistic effects that current inkjet technology cannot. Attached Figure Description

[0038] Figure 1 This is a flowchart of a preferred embodiment of a method for preparing three-dimensional colored glazed tiles according to the present invention.

[0039] Figure 2 This is a schematic diagram of a preferred embodiment of a method for preparing three-dimensional colored glazed tiles according to the present invention. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of this invention clearer and more explicit, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0041] In this embodiment, colored ceramic particles of different colors are mixed in different proportions and then combined with screen printing or particle stacking to form a specific pattern that produces a 3D effect on the surface of the blank. This results in a 3D effect in both visual and tactile aspects, making the product more personalized, increasing its added value, and enhancing its competitiveness.

[0042] Please see Figure 1 , Figure 1 This is a flowchart of the preparation method of the three-dimensional colored glazed tile in this invention. For example... Figure 1 As shown, the preparation method of the three-dimensional colored glazed tile according to the embodiment of the present invention includes the following steps:

[0043] Step S100: Prepare colored porcelain particles of different colors, and mix the colored porcelain particles of different colors in a predetermined ratio to obtain a colored porcelain particle mixture.

[0044] The colored ceramic particles used in this application embodiment are prepared in a way that is highly operable, saves energy, and ensures stable color development of the encapsulated pigment, resulting in a wider color gamut, unlike the dry frit particles in the prior art.

[0045] In this embodiment of the application, the step of "preparing colored ceramic particles of different colors" in step S100 specifically includes:

[0046] Step S110: Prepare the colored paste according to the predetermined colored paste raw material formula;

[0047] Step S120: Process the colored slurry into a colored ceramic plate with a predetermined water absorption rate;

[0048] Step S130: The colored ceramic plate is crushed and sieved to obtain colored ceramic particles within a predetermined particle size range.

[0049] In this embodiment, conventional inorganic pigments for ceramics and conventional body powders are mixed in a certain proportion, and then wet-milled, spray-dried granulated, pressed, fired, crushed, and sorted to obtain colored ceramic particles of a certain particle size. Specifically, colored ceramic particles of a specific color are produced according to a pattern design. Ceramic pigments and body powders are mixed in a certain proportion and wet-milled into a colored slurry. The colored slurry is spray-dried and pressed into a colored body. The colored body is fired under a conventional firing regime to produce a colored ceramic slab with a certain water absorption rate. The colored ceramic slab is then crushed and sieved to obtain colored ceramic particles of a certain particle size.

[0050] This application embodiment produces a colored slurry according to a predetermined colored slurry raw material formula, which allows for precise color control and ensures that the color of each colored ceramic particle meets the design requirements, providing a foundation for achieving rich and diverse patterns and colors on three-dimensional colored glazed tiles. This application embodiment processes the colored slurry into colored ceramic slabs with a predetermined water absorption rate, ensuring the stability and dispersibility of the colored ceramic particles in the glaze, thereby further influencing the color and three-dimensional effect of the final product. This application embodiment crushes and sieves the colored ceramic slabs to obtain colored ceramic particles within a predetermined particle size range, ensuring particle uniformity and consistency, which is crucial for the clarity and delicacy of the patterns during screen printing. Simultaneously, colored ceramic particles of different particle sizes can produce different visual effects, providing more possibilities for the design of three-dimensional colored glazed tiles. This application embodiment also combines screen printing to form various complex and intricate patterns. These patterns are not only rich in color but also have a 3D effect, greatly enhancing the artistic value and aesthetic appeal of ceramic products.

[0051] The colored ceramic particles in this application overcome the limitation of the narrow color gamut of current ceramic inks, resulting in richer and more natural texture expression. The color combinations of different colored ceramic particles can create more layers, producing a three-dimensional effect and greater artistry. Furthermore, because ceramic inkjet inks are highly oily, ink droplets are prone to mutual dissolution when the ink volume is large, hindering the expression of fine details. However, using colored ceramic particles can achieve artistic effects that are currently impossible with inkjet technology.

[0052] In one embodiment of this application, step S120 specifically includes:

[0053] Step S121: Spray granulation of the colored slurry and press molding to obtain a colored preform;

[0054] Step S122: Fire the colored blank to obtain a colored ceramic plate with a predetermined water absorption rate.

[0055] Specifically, the control parameters for processes such as ball milling, spray granulation, pressing and drying, and firing in the production of colored ceramic slabs are controlled according to the large-scale production control.

[0056] The embodiments of this application utilize spray granulation technology to ensure that the color paste rapidly forms tiny, uniformly sized particles in a short time, which not only improves the uniformity of the particles but also makes the physicochemical properties of the particles superior. Through pressing molding, the density and uniformity of the colored body can be further ensured, laying the foundation for subsequent firing of high-quality colored ceramic slabs.

[0057] In one embodiment of this application, the predetermined water absorption rate is less than or equal to 0.3%, and the predetermined particle size range is from the aperture of a 60-mesh sieve to the aperture of a 30-mesh sieve.

[0058] Specifically, the colored ceramic slabs fired in the embodiments of this application have a water absorption rate of ≤0.3%, and the particle size range of the colored ceramic particles obtained after the colored ceramic slabs are crushed is from the aperture of a 60-mesh sieve to the aperture of a 30-mesh sieve.

[0059] The low water absorption rate of the colored ceramic slabs produced in this application indicates a higher density and a more compact internal structure, resulting in better physical and chemical stability. This ensures the stability and dispersibility of the colored ceramic particles in the glaze, thereby improving the durability of the final product. Furthermore, the low water absorption rate also makes the colored ceramic slabs less prone to absorbing moisture, reducing the impact of moisture on the colored ceramic particles and glaze, and preventing problems such as cracking and deformation during firing. The choice of particle size range directly affects the fineness and layering of the pattern. The relatively small pore size of a 60-mesh sieve produces a delicate effect, while the relatively large pore size of a 30-mesh sieve produces a rougher texture, thus enabling the patterns in this application to possess both delicate details and an overall sense of layering. Moreover, by selecting a particle size within this range, this invention can present different patterns and design styles.

[0060] In this embodiment of the application, the colored slurry raw material formula includes: a colored slurry raw material formula and a white slurry raw material formula.

[0061] Specifically, combining colored and white pigment formulations can create striking pattern effects. By layering and mixing different colored pigments, patterns with rich depth and texture can be created.

[0062] The colored slurry raw material formulation of this application includes a colored slurry raw material formulation and a white slurry raw material formulation, thereby preparing colored porcelain particles and white porcelain particles to improve the glaze layer.

[0063] In one embodiment of this application, the colored slurry raw material formula, by weight, includes: 80-90 parts of preform powder, 9-11 parts of inorganic pigment, and 0-10 parts of calcined talc.

[0064] Specifically, the inorganic pigments mentioned are conventional ceramic inorganic pigments. As widely used colorants in the ceramic industry, inorganic pigments possess a series of advantages such as high temperature resistance, excellent weather resistance, strong hiding power, and excellent solvent resistance, enabling colored pastes to exhibit a rich variety of colors and meeting the market's demand for diverse colors in ceramic products. Inorganic pigments do not undergo chemical reactions, volatilize, or escape within the ceramic firing temperature range, and their mineral structure is not damaged by the erosion of the molten material, thus preventing color changes. Therefore, colored pastes can maintain stable color effects during firing and are not prone to fading or discoloration. Calcined talc, as a hard flux, acts as a fluxing agent at high temperatures.

[0065] This application embodiment utilizes raw material powder, inorganic pigments, and calcined talc to prepare colored slurries of different colors, thereby obtaining colored ceramic particles of different colors and improving the diversity of surface colors of ceramic products.

[0066] In one embodiment of this application, the white slurry raw material formula, by weight, includes: 80-90 parts of preform powder, 9-11 parts of zirconium silicate, and 0-10 parts of calcined talc.

[0067] Specifically, to improve the glaze layering, in addition to colored porcelain particles, white porcelain particles are also needed. That is, the colored porcelain particles in the embodiments of this application include both white and colored porcelain particles. Zirconium silicate is an important ceramic raw material with excellent opacifying and whitening effects.

[0068] In this embodiment, a white slurry is prepared by using raw material powder, zirconium silicate and calcined talc to obtain white porcelain particles, which are then combined with colored porcelain particles to form a striking pattern effect.

[0069] In this embodiment of the application, the whiteness of the raw material powder after firing is greater than or equal to 50 degrees. Specifically, in this embodiment of the application, the whiteness of the raw material powder after firing alone is ≥50 degrees.

[0070] The embodiments of this application use high-whiteness body powder, which can more clearly present the color of colored slurry, resulting in higher color reproduction of colored porcelain particles.

[0071] like Figure 1 As shown, the method for preparing three-dimensional colored glazed tiles according to embodiments of the present invention further includes:

[0072] Step S200: Add basic glaze and printing paste to the ceramic particle mixture, and stir to obtain a printing glaze of the predetermined color system.

[0073] Specifically, by mixing colored porcelain particles of different colors in different proportions, porcelain particle mixtures of different color systems can be obtained. Adding a base glaze and printing paste to these mixtures yields printing glazes of different color systems. Printing paste is a paste-like substance prepared from various raw materials through a specific process, used for decorating and printing patterns on ceramic surfaces.

[0074] In this embodiment of the application, the chemical composition of the base glaze slurry, by mass percentage, includes:

[0075] Loss on ignition 10.04%, SiO2 48.93%, Al2O3 8.99%, Fe2O3 0.16%, CaO 12.86%, MgO 2.37%, K2O 3.03%, Na2O 1.52%, ZnO 4.14%, SrO 4.68%, BaO 3.28%.

[0076] In a further embodiment, the chemical composition of the base glaze slurry, by mass percentage, includes:

[0077] Loss on ignition 10.04%, SiO2 48.93%, Al2O3 8.99%, Fe2O3 0.16%, CaO 12.86%, MgO 2.37%, K2O 3.03%, Na2O 1.52%, ZnO 4.14%, SrO 4.68%, BaO 3.28%.

[0078] The embodiments of this application obtain high-quality printing glaze by using a reasonable basic glaze chemical composition.

[0079] like Figure 1 As shown, the method for preparing three-dimensional colored glazed tiles according to embodiments of the present invention further includes:

[0080] Step S300: The printing glaze paste is printed onto the ceramic body with slip by screen printing to obtain a glazed body.

[0081] Specifically, the ceramic body is prepared according to the conventional tile production process, that is, conventional powder is pressed, dried, and then coated with slip to obtain a ceramic body with slip. The printing glaze is then printed onto the surface of the slip-coated ceramic body using screen printing to form a specific design pattern.

[0082] In one embodiment of this application, a 20-mesh screen is used, thickened three times. The screen printing pattern is designed according to requirements. After screen printing, inkjet printing can be combined as needed to embellish the pattern and enrich its content.

[0083] like Figure 1 As shown, the method for preparing three-dimensional colored glazed tiles according to embodiments of the present invention further includes:

[0084] Step S400: The glazed body is fired at high temperature to obtain a three-dimensional colored glazed tile.

[0085] Specifically, the glazed ceramic body is fired at high temperature in a kiln. After firing, the surface is polished or left unpolished to obtain a three-dimensional colored glazed tile. Polishing can be performed using soft polishing, matte polishing, full polishing, etc., according to market demand to obtain products with different glaze effects. The flowchart for preparing three-dimensional colored glazed tiles is as follows: Figure 2 As shown.

[0086] The following are specific examples for illustration.

[0087] Example 1

[0088] Step A1: By weight, mix 80 parts of raw material powder, 9 parts of inorganic pigment, and 1 part of calcined talc to prepare colored pastes of different colors; mix 80 parts of raw material powder, 9 parts of zirconium silicate, and 1 part of calcined talc to prepare white paste.

[0089] Step A2: Spray granulation of the colored slurry and the white slurry, respectively, followed by pressing to obtain colored and white green bodies;

[0090] Step A3: Fire the colored body and the white body to obtain colored porcelain slabs and white porcelain slabs with a water absorption rate of ≤0.3%;

[0091] Step A4: The colored porcelain plate and the white porcelain plate are crushed and sieved respectively to obtain colored porcelain particles of different colors and white porcelain particles with a sieve aperture of 60 mesh to 30 mesh.

[0092] Step A5: Prepare the first ceramic particle mixture. The proportions of the ceramic particles in the first ceramic particle mixture are as follows: 88.5 parts white ceramic particles, 5 parts coated with golden yellow ceramic particles, 3 parts coated with orange yellow ceramic particles, 1.5 parts cobalt blue ceramic particles, and 2 parts chrome green ceramic particles.

[0093] Step A6: Prepare a second ceramic particle mixture. The proportions of the ceramic particles in the second ceramic particle mixture are as follows: 60 parts of bright red ceramic particles, 14 parts of cobalt black ceramic particles, 7 parts of golden yellow ceramic particles, 6 parts of white ceramic particles, 5 parts of orange-yellow ceramic particles, and 8 parts of apple green ceramic particles.

[0094] Step A7: Prepare the third ceramic particle mixture. The proportions of the ceramic particles in the second ceramic particle mixture are as follows: 55 parts cobalt black ceramic particles, 8 parts coated orange-yellow ceramic particles, 11 parts cobalt blue ceramic particles, 5 parts apple green ceramic particles, 8 parts chrome green ceramic particles, 7 parts golden brown ceramic particles, and 6 parts praseodymium yellow ceramic particles.

[0095] Step A8: The base glaze and printing ink are ball-milled to a fineness of ≤0.4% on a 325-mesh sieve, and then printing paste is added to adjust the specific gravity to 1.55g / ml to obtain the base glaze slurry;

[0096] Step A9: Prepare the first printing glaze, the second printing glaze, and the third printing glaze according to the ratio of base glaze slurry to porcelain particle mixture = 100:30-40;

[0097] Step A10: The first, second, and third printing glazes are printed onto the ceramic body coated with slip using screen printing. The first printing glaze serves as the main color for a large area, resulting in a light-colored 3D three-dimensional colored glazed tile.

[0098] Example 2

[0099] Step B1: By weight, mix 85 parts of raw material powder, 10 parts of inorganic pigment, and 5 parts of calcined talc to prepare colored pastes of different colors; mix 85 parts of raw material powder, 10 parts of zirconium silicate, and 5 parts of calcined talc to prepare white paste.

[0100] Step B2: Spray granulation of the colored slurry and the white slurry, respectively, followed by pressing to obtain a colored green body and a white green body;

[0101] Step B3: Fire the colored and white blanks to obtain colored and white porcelain plates with a water absorption rate of ≤0.3%.

[0102] Step B4: The colored porcelain plate and the white porcelain plate are crushed and sieved respectively to obtain colored porcelain particles of different colors and white porcelain particles with a sieve aperture of 60 mesh to 30 mesh.

[0103] Step B5: Prepare the fourth ceramic particle mixture. The proportions of the ceramic particles in the first ceramic particle mixture are as follows: 45 parts of golden yellow ceramic particles, 10 parts of golden brown ceramic particles, 5 parts of apple green ceramic particles, 10 parts of white ceramic particles, 10 parts of cobalt black ceramic particles, 12 parts of praseodymium yellow ceramic particles, and 8 parts of bright red ceramic particles.

[0104] Step B6: Prepare the fifth ceramic particle mixture. The proportions of the ceramic particles in the second ceramic particle mixture are as follows: 12 parts of golden yellow ceramic particles, 26 parts of reddish-brown ceramic particles, 6 parts of cobalt blue ceramic particles, 6 parts of white ceramic particles, 15 parts of cobalt black ceramic particles, 6 parts of tea-red ceramic particles, 4 parts of bright red ceramic particles, and 25 parts of golden-brown ceramic particles.

[0105] Step B7: Prepare the sixth ceramic particle mixture. The proportions of the ceramic particles in the second ceramic particle mixture are as follows: 10 parts of golden yellow ceramic particles, 2 parts of golden brown ceramic particles, 16 parts of tea-red ceramic particles, 28 parts of reddish-brown ceramic particles, 10 parts of cobalt black ceramic particles, 7 parts of chrome green ceramic particles, 8 parts of bright red ceramic particles, 8 parts of orange-yellow ceramic particles, and 11 parts of white ceramic particles.

[0106] Step B8: The base glaze and printing ink are ball-milled to a fineness of ≤0.4% on a 325-mesh sieve, and then printing paste is added to adjust the specific gravity to 1.55g / ml to obtain the base glaze slurry;

[0107] Step B9: Prepare the fourth, fifth, and sixth printing glazes according to the ratio of base glaze: porcelain particle mixture = 100: 30-40;

[0108] Step B10: The fourth, fifth, and sixth printing glazes are printed onto the ceramic body with slip by screen printing. The sixth printing glaze is used as the main color for a large area, resulting in a 3D three-dimensional colored glaze tile with coffee as the main color.

[0109] This application also provides a three-dimensional colored glazed tile, wherein the three-dimensional colored glazed tile is prepared by the three-dimensional colored glazed tile preparation method described above.

[0110] The embodiments of this application achieve the following effects:

[0111] First, compared with traditional floor tiles, the three-dimensional colored glazed tiles provided in this application have distinctive features in terms of glaze decoration. Through the combination of various colored porcelain particles, the surface decoration layer of the tile can have a 3D three-dimensional effect, which is more artistic.

[0112] Secondly, the embodiments of this application use colored ceramic particles to express the pattern colors on the product surface, which has a wider color gamut and richer content compared to ink.

[0113] Third, because the embodiments of this application use colored ceramic particles with larger particle size, the surface of the product after firing has a stronger particle size, and the 3D three-dimensional feel effect can still be achieved after the polishing process.

[0114] This invention provides a method for preparing three-dimensional colored glazed tiles and the three-dimensional colored glazed tiles themselves. The method for preparing three-dimensional colored glazed tiles includes: preparing colored porcelain particles of different colors, and mixing the colored porcelain particles of different colors in a predetermined ratio to obtain a porcelain particle mixture; adding a base glaze and printing paste to the porcelain particle mixture, and stirring to obtain a printing glaze of a predetermined color system; printing the printing glaze onto a ceramic body coated with slip by screen printing to obtain a glazed body; and firing the glazed body at high temperature to obtain a three-dimensional colored glazed tile. This invention, by mixing the prepared colored porcelain particles of different colors in different proportions and combining this with screen printing to form different patterns, results in a wide variety of pattern colors and produces a 3D effect on the body surface. This solves the problem in the prior art where the color gamut of inkjet ink is too narrow and the pattern effect is planar, leading to small differences in the pattern colors of various ceramic products.

[0115] It should be understood that the application of the present invention is not limited to the examples above. Those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A method for preparing three-dimensional colored glazed tiles, characterized in that, include: Different colored ceramic particles were prepared, and the different colored ceramic particles were mixed in a predetermined ratio to obtain a colored ceramic particle mixture. Add a base glaze and printing paste to the mixture of colored ceramic particles, and stir to obtain a printing glaze of a predetermined color. The printing glaze is printed onto a ceramic body coated with slip by screen printing to obtain a glazed body. The glazed body is fired at high temperature to obtain a three-dimensional colored glazed tile; Preparation of colored ceramic particles of different colors, including: The colored paste was prepared according to the predetermined colored paste formula; The colored slurry is processed into a colored ceramic plate with a predetermined water absorption rate; The colored ceramic slab is crushed and sieved to obtain colored ceramic particles within a predetermined particle size range. The predetermined water absorption rate is less than or equal to 0.3%, and the predetermined particle size range is from the aperture of a 60-mesh sieve to the aperture of a 30-mesh sieve. The colored paste formulation includes: a colored paste raw material formulation and a white paste raw material formulation; The colored slurry raw material formula, by weight, includes: 80-90 parts of preform powder, 9-11 parts of inorganic pigment, and 0-10 parts of calcined talc; The white slurry raw material formula, by weight, includes: 80-90 parts of preform powder, 9-11 parts of zirconium silicate, and 0-10 parts of calcined talc.

2. The method for preparing three-dimensional colored glazed tiles according to claim 1, characterized in that, Processing the colored slurry into a colored ceramic plate with a predetermined water absorption rate includes: The colored slurry is spray-granulated and pressed into shape to obtain a colored preform. The colored blank is fired to obtain a colored porcelain plate with a predetermined water absorption rate.

3. The method for preparing three-dimensional colored glazed tiles according to claim 1, characterized in that, The whiteness of the powder used for the blank after firing is greater than or equal to 50 degrees.

4. The method for preparing three-dimensional colored glazed tiles according to claim 1, characterized in that, The chemical composition of the base glaze slurry, by mass percentage, includes: Loss on ignition 5-11%, SiO2 47-50%, Al2O3 8-9%, Fe2O3 0-0.2%, CaO 11-13%, MgO 2-3%, K2O 2-4%, Na2O 1-2%, ZnO 4-5%, SrO 4-5%, BaO 2-4%.

5. A three-dimensional colored glazed tile, characterized in that, The three-dimensional colored glazed tile is prepared by the method for preparing three-dimensional colored glazed tiles as described in any one of claims 1 to 4.

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