Ceramic rock plate with three-dimensional color pattern and texture and preparation method thereof

Abstract

The present invention provides a ceramic rock plate with three-dimensional color patterns and textures and a preparation method thereof. The ceramic rock plate has a concave-convex texture structure, a patterned texture structure, and a laminated texture structure; wherein the concave-convex texture structure is formed on the surface of the green body layer by the combination of ceramic powder and ceramic granules, and the density of the ceramic powder region is 1.86-1.90 g / cm 3 The density of the granular material region is 1.94 to 1.98 g / cm 3 ; wherein, the functional ink layer is formed by hydrophobic ink, the transparent glaze layer is formed by hydrophilic transparent glaze, and the graphic texture structure is a texture with a concave depth formed by the displacement effect of the hydrophobic ink and the hydrophilic transparent glaze; wherein, the laminated texture structure is a superimposed texture formed by the graphic texture structure on the concave and convex texture structure.

Description

Technical Field

[0001] The present invention relates to the technical field of building ceramics, and in particular to a ceramic rock slab with three-dimensional color patterns and textures and a preparation method thereof. Background Art

[0002] As people's living standards continue to improve, their aesthetic preferences for decoration and furnishing materials are becoming increasingly personalized, with a greater emphasis on style, taste, and visual effects. Ceramic panels, which can replicate a wide range of stone-like patterns, colors, and textures, and offer superior physical and chemical properties, are increasingly being used in modern decoration. Granular ceramic tiles, in particular, are highly favored for their elegant, stable, random, and natural appearance, as well as their embossed, three-dimensional, layered surface.

[0003] Ceramic plates with a concave-convex effect on the surface produced by existing technology are either produced by a combination of glaze and functional ink (inkjet technology), or produced by pressing the surface concave-convex effect with a press mold. The concave-convex effects formed by the above schemes are relatively fixed, that is, the replication effect of the inkjet pattern model or the press mold model, and cannot produce a random change effect, nor is it a natural effect produced by the elemental material of the blank itself. Therefore, the concave-convex effects of these schemes are repetitive, single, and regular, and the surface effect of almost every plate product is basically the same, so there are limitations.

[0004] CN114227880A discloses a colored ceramic rock plate with texture modeling and a preparation method thereof; the ceramic rock plate improves the bonding force, density and strength of the green body layer and the slurry layer by adopting a green body layer and a slurry layer with 90% to 100% similar raw material chemical composition; a colored slurry with high purity, high concentration and high brightness is combined with functional ink printed by a ceramic inkjet printer and a transparent glaze to produce a colored ceramic rock plate with a surface having a distinct concave and convex touch, texture modeling of varying depths and a visual bright and matte effect, thereby meeting people's requirements for diversified and personalized decorative ceramic plates.

[0005] CN110746203A discloses a ceramic product with a mold-effect texture produced by a digital process. The surface of the product contains a three-dimensional concave-convex mold-effect texture, and the mold-effect texture is produced by digital art. The mold-effect texture is formed by a glaze layer including a pattern layer producing a texture shape with a depth of 0.5 to 3 mm on the surface of the product. The ceramic product and its production method of this solution use a new digital process to produce a mold-effect texture with a controllable depth of 0.5 to 3 mm to replace the traditional physical mold.

[0006] In view of this, the present invention is proposed. Summary of the Invention

[0007] One of the purposes of the present invention is to provide a ceramic rock plate with three-dimensional color patterns and textures. Due to the different densities of ceramic powder and ceramic granular materials in the blank, the surface of the dried and fired plate product has a random concave and convex texture of varying depths, and a graphic texture is formed by printing a predetermined pattern with hydrophobic functional ink and cooperating with a transparent glaze layer, and then superimposed with a combination of an inkjet pattern layer and a protective glaze layer to form a three-dimensional color pattern and texture that is visually and tactilely integrated, so that the texture effect of each plate product is not repeated, thereby achieving a high-level aesthetic effect of randomness, nature, and visual and tactile integration.

[0008] The second object of the present invention is to provide a method for preparing a ceramic rock slab with three-dimensional color patterns and textures, the preparation method comprising the following steps: mixing ceramic powder and ceramic granules, pressing, and drying to obtain the green body; digitally printing hydrophobic ink, applying hydrophilic transparent glaze, inkjet printing patterns, and applying protective glaze on the surface of the green body in sequence to obtain a glazed green body; firing the glazed green body to obtain the ceramic rock slab with three-dimensional color patterns and textures.

[0009] In order to achieve the above-mentioned purpose of the present invention, the following technical solutions are adopted:

[0010] In a first aspect, the present invention provides a ceramic rock plate having a three-dimensional color pattern and texture, wherein the ceramic rock plate having a three-dimensional color pattern and texture comprises a body layer, a functional ink layer, a transparent glaze layer, an inkjet pattern layer, and a protective glaze layer stacked in sequence, and the ceramic rock plate has a concave-convex texture structure, a graphic texture structure, and a laminated texture structure;

[0011] Wherein, the concave-convex texture structure is a texture formed on the surface of the green body layer by the combination of ceramic powder and ceramic granules;

[0012] The functional ink layer is formed of hydrophobic ink, the transparent glaze layer is formed of hydrophilic transparent glaze, and the graphic texture structure is a texture with a concave depth formed by the displacement effect of the hydrophobic ink and the hydrophilic transparent glaze;

[0013] The laminated texture structure is a superimposed texture formed by the graphic texture structure on the concave-convex texture structure.

[0014] In the present invention, the ceramic rock plate contains a random concave and convex texture of varying depths formed on the surface of the green body layer by ceramic powder and ceramic granules of different densities, and a graphic texture formed on the green body layer by the combined action of a predetermined graphic printed with hydrophobic functional ink and a transparent glaze layer (the functional ink layer is a graphic layer formed by printing with a hydrophobic functional ink having a physical separation function, that is, the water-based transparent glaze layer is peeled off by the oily characteristics of the functional ink to form a texture pattern), or also includes a stacked texture formed by the graphic texture on the concave and convex texture, and then a color pattern with concave and convex three-dimensional layers is formed by the application of inkjet patterns and protective glaze (the color pattern is composed of the color pattern of the green body element material itself and the inkjet color pattern), so that the texture formed on the surface of the rock plate has both a single texture and a stacked texture, and is changeable, thereby enriching the layering and visual effect of the texture.

[0015] In the present invention, the different densities of the ceramic powder and ceramic particles in the green body result in the surface of the rock slab product having a randomly distributed concave and convex texture effect of varying depths after drying and firing; the random distribution of the particles in the green body layer makes the concave and convex texture formed on the surface of each rock slab non-repetitive, and although the position of the graphic texture formed by the hydrophobic functional ink and the transparent glaze layer is fixed on the surface of the rock slab, the position of the concave and convex texture is not fixed due to the random distribution characteristics of the particles, so that the texture formed on the surface of the rock slab has both single texture and layered texture, and has the characteristics of change, thereby enriching the layering of the texture and the visual and tactile effects.

[0016] Wherein, in the green body layer, the density of the ceramic powder region is 1.86-1.90 g / cm 3 , for example, it can be 1.86 g / cm 3 , 1.87g / cm 3 , 1.88g / cm 3 、1.90g / cm 3 wait.

[0017] Wherein, in the green body layer, the density of the granular material region is 1.94-1.98 g / cm 3 , for example, it can be 1.94 g / cm 3 , 1.95g / cm 3 , 1.96g / cm 3 , 1.97g / cm 3 、1.98g / cm 3 wait.

[0018] In the present invention, the above-mentioned density refers to the bulk density of the ceramic powder or granular material after pressing, which is measured by weighing method, specifically including the following steps: preparing at least 10 regular small samples after pressing, measuring their respective masses and volumes, and calculating the corresponding bulk density, and then taking the average value to obtain the bulk density of the ceramic powder or granular material.

[0019] The following Figure 1 Specifically, an enlarged view of the local structure between the concave-convex texture and the graphic texture of the ceramic rock slab described in the present invention is given; wherein, h1 represents the vertical distance between the depression and the protrusion at the position of the concave-convex texture structure, h2 represents the vertical distance between the depression and the protrusion at the position of the graphic texture structure, and H represents the vertical distance of the superposition of the concave-convex texture and the graphic texture (that is, the vertical distance between the depression and the protrusion at the position of the superimposed texture structure).

[0020] Preferably, the vertical distance h1 between the depression and the protrusion of the ceramic rock plate at the position where the concave-convex texture structure is formed is 0.1 to 1 mm, for example, it can be 0.1 mm, 0.2 mm, 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 1 mm, etc.

[0021] Preferably, the vertical distance h2 between the depression and the protrusion of the ceramic rock plate at the position where the graphic texture structure is formed is 0.2 to 1.5 mm, for example, it can be 0.2 mm, 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm, 0.8 mm, 1 mm, 1.2 mm, 1.4 mm, 1.5 mm, etc.

[0022] Preferably, the vertical distance H between the depression and the protrusion of the ceramic rock plate at the position where the superimposed texture structure is formed is less than 2.5 mm, for example, it can be 2.5 mm, 2.4 mm, 2.2 mm, 2 mm, 1.8 mm, 1.6 mm, 1.4 mm, 1.2 mm, 1 mm, 0.5 mm, 0.4 mm, 0.2 mm, etc.

[0023] In the present invention, the position of the concave and convex texture formed by the random distribution of the granular material is random, while the position of the graphic texture is basically fixed, so the graphic texture can form a texture in the concave part of the concave and convex texture, and can also form a superimposed texture in the convex part. The graphic texture is dot-shaped and / or line-shaped.

[0024] Preferably, the drying shrinkage ratio of the ceramic powder and ceramic granules is (1.05-1.1):1, for example, it can be 1.05:1, 1.06:1, 1.07:1, 1.08:1, 1.09:1, 1.1:1, etc.

[0025] In the present invention, the drying shrinkage ratio of ceramic powder and ceramic granules is further limited to (1.05-1.1):1. The reason is that: the granules have a higher density than the ceramic powder. When pressed into a green body, the density of the granules in the green body layer is slightly higher than that of the conventional ceramic powder. The higher the density, the more compact it is. Therefore, the granules are relatively compact. During the drying process of the green body, about 7% of the free water in the green body evaporates from the green body, causing the green body to shrink. The compacted area has a relatively large mass and a relatively small shrinkage rate. The drying shrinkage of the granules is similar to that of the conventional ceramic powder. The shrinkage ratio is 1: (1.05 ~ 1.1), and the shrinkage rate of the granular material is slightly smaller than that of the conventional ceramic powder, so that the granular material on the surface of the green body forms a preliminary bulge on the surface of the green body after drying; and in the firing process, the green body shrinks as a whole, so that the granular material on the surface of the green body after firing forms bulges of varying depths, and the depth of the position of the granular material in the green body is inversely proportional to the height of the bulge (that is, the shallower the position, that is, the closer to the surface, the more obvious the bulge), and the size or thickness of the granular material is proportional to the height of the bulge (that is, the larger or thicker the granular material, the more obvious the bulge).

[0026] Preferably, based on the mass of the raw materials for preparing the green body layer being 100%, the raw materials for preparing the green body layer include: 50-95% of ceramic powder and 5-50% of ceramic granules.

[0027] Taking the mass of the raw materials for preparing the green body layer as 100%, the content of the ceramic powder is 50-90%, for example, it can be 50%, 55%, 60%, 65%, 70%, 75%, 80%, 85%, 90%, etc.

[0028] Taking the mass of the raw materials for preparing the green body layer as 100%, the content of the ceramic particles is 5-50%, for example, 5%, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%, 50%, etc.

[0029] In the present invention, the ceramic powder may be any conventional ceramic powder.

[0030] Preferably, the raw materials for preparing the ceramic powder include the following components by weight: 23-27 parts of ball clay, 18-22 parts of sodium aluminum sand, 13-17 parts of potassium sodium water abrasive, 10-12 parts of ultra-white stone powder, 6-10 parts of polishing mud, 5-7 parts of medium-temperature sand, 3-5 parts of pyrophyllite, 4-6 parts of diopside, 3-5 parts of high clay, 1-3 parts of ultra-white mud, 0.1-0.5 parts of optional debonding agent, 0.1-0.5 parts of optional water reducer, and 0.1-0.5 parts of optional reinforcing agent.

[0031] In the raw materials for preparing the ceramic powder, the content of ball clay is 23 to 27 parts, for example, 23 parts, 24 parts, 25 parts, 26 parts, 27 parts, etc.

[0032] In the raw materials for preparing the ceramic powder, the content of sodium aluminum sand is 18 to 22 parts, for example, it can be 18 parts, 19 parts, 20 parts, 21 parts, 22 parts, etc.

[0033] In the raw materials for preparing the ceramic powder, the content of potassium-sodium aqueous abrasive is 13 to 17 parts, for example, 13 parts, 14 parts, 14.5 parts, 15 parts, 15.5 parts, 16 parts, 17 parts, etc.

[0034] In the raw materials for preparing the ceramic powder, the content of the ultra-white stone powder is 10 to 12 parts, for example, 10 parts, 10.5 parts, 11 parts, 11.5 parts, 12 parts, etc.

[0035] In the raw materials for preparing the ceramic powder, the content of the polishing mud is 6 to 10 parts, for example, 6 parts, 7 parts, 8 parts, 9 parts, 10 parts, etc.

[0036] In the raw materials for preparing the ceramic powder, the content of the medium-temperature sand is 5 to 7 parts, for example, 5 parts, 5.5 parts, 6 parts, 6.5 parts, 7 parts, etc.

[0037] In the raw materials for preparing the ceramic powder, the content of pyrophyllite is 3 to 5 parts, for example, 3 parts, 3.5 parts, 4 parts, 4.5 parts, 5 parts, etc.

[0038] In the raw materials for preparing the ceramic powder, the content of diopside is 4 to 6 parts, for example, 4 parts, 4.5 parts, 5 parts, 5.5 parts, 6 parts, etc.

[0039] In the raw materials for preparing the ceramic powder, the content of high clay is 3 to 5 parts, for example, 3 parts, 3.5 parts, 4 parts, 4.5 parts, 5 parts, etc.

[0040] In the raw materials for preparing the ceramic powder, the content of the ultra-white cement is 1 to 3 parts, for example, 1 part, 1.5 parts, 2 parts, 2.5 parts, 3 parts, etc.

[0041] In the raw materials for preparing the ceramic powder, the content of the optional debonding agent is 0.1 to 0.5 parts, for example, 0.1 parts, 0.2 parts, 0.3 parts, 0.4 parts, 0.5 parts, etc.

[0042] In the raw materials for preparing the ceramic powder, the content of the optional water reducer is 0.1 to 0.5 parts, for example, 0.1 parts, 0.2 parts, 0.3 parts, 0.4 parts, 0.5 parts, etc.

[0043] In the raw materials for preparing the ceramic powder, the content of the optional reinforcing agent is 0.1 to 0.5 parts, for example, 0.1 parts, 0.2 parts, 0.3 parts, 0.4 parts, 0.5 parts, etc.

[0044] Preferably, the ceramic granules include: granules and / or flakes prepared by pressing the ceramic powder; and / or granules and / or flakes prepared by drying a slurry. (The slurry may be a mixture of any ceramic powder raw materials and water, ball-milled.)

[0045] Preferably, the ceramic powder has a particle size of more than 95% of the residue passing through a 100-mesh sieve.

[0046] Preferably, the ceramic particles are granular and / or flaky ceramic particles with a thickness of less than 3 mm (for example, 3 mm, 2.8 mm, 2.6 mm, 2.4 mm, 2.2 mm, 2 mm, 1.5 mm, 1 mm, 0.5 mm, etc.) and a maximum width of less than 10 mm (for example, 10 mm, 9 mm, 8 mm, 7 mm, 6 mm, 5 mm, 4 mm, 2 mm, 1 mm, etc.).

[0047] Preferably, the transparent glaze layer comprises the following components by mass percentage: SiO2 45-47.5%, Al2O3 16.5-19.3%, CaO 8.7-9.8%, MgO 3.3-4.1%, K2O 3.3-4.2%, Na2O 1.9-2.5%, BaO 0.8-1.3%, ZnO 1.6-2.2%, SrO 3-3.6%, and the rest are ignition loss and impurities.

[0048] Taking the total mass of the chemical composition of the transparent glaze layer as 100%, the content of SiO2 is 45-47.5%, for example, it can be 45%, 45.5%, 46%, 46.5%, 47%, 47.5%, etc.

[0049] Taking the total mass of the chemical composition of the transparent glaze layer as 100%, the content of Al2O3 is 16.5-19.3%, for example, it can be 16.5%, 17%, 17.5%, 18%, 18.5%, 19.3%, etc.

[0050] Taking the total mass of the chemical composition of the transparent glaze layer as 100%, the CaO content is 8.7-9.8%, for example, 8.7%, 8.8%, 9%, 9.2%, 9.4%, 9.6%, 9.8%, etc.

[0051] Taking the total mass of the chemical composition of the transparent glaze layer as 100%, the content of MgO is 3.3-4.1%, for example, 3.3%, 3.4%, 3.5%, 3.6%, 3.8%, 4%, 4.1%, etc.

[0052] Based on the total mass of the chemical composition of the transparent glaze layer being 100%, the content of K2O is 3.3-4.2%, for example, 3.3%, 3.4%, 3.5%, 3.6%, 3.8%, 4%, 4.2%, etc.

[0053] Taking the total mass of the chemical composition of the transparent glaze layer as 100%, the content of Na2O is 1.9-2.5%, for example, it can be 1.9%, 2%, 2.1%, 2.2%, 2.3%, 2.4%, 2.5%, etc.

[0054] Based on the total mass of the chemical composition of the transparent glaze layer being 100%, the content of BaO is 0.8-1.3%, for example, 0.8%, 0.9%, 1%, 1.1%, 1.2%, 1.3%, etc.

[0055] Based on the total mass of the chemical composition of the transparent glaze layer being 100%, the content of ZnO is 1.6-2.2%, for example, 1.6%, 1.7%, 1.8%, 1.9%, 2%, 2.1%, 2.2%, etc.

[0056] Based on the total mass of the chemical composition of the transparent glaze layer being 100%, the SrO content is 3-3.6%, for example, 3%, 3.1%, 3.2%, 3.3%, 3.4%, 3.5%, 3.6%, etc.

[0057] Preferably, the raw materials for preparing the hydrophilic transparent glaze include the following components in parts by weight: 34-38 parts of potassium feldspar, 13-17 parts of sodium feldspar, 7-9 parts of wollastonite, 10-14 parts of calcite, 15-18 parts of kaolin, 5-7 parts of calcined talc, 0.5-2 parts of barium carbonate, 1-3 parts of zinc oxide, 3-4 parts of strontium carbonate, 24-32 parts of water, 0.05-0.35 parts of suspending agent, and 0.1-0.6 parts of degumming agent.

[0058] In the raw materials for preparing the hydrophilic transparent glaze, the content of potassium feldspar is 34 to 38 parts, for example, 34 parts, 35 parts, 35.5 parts, 36 parts, 36.5 parts, 37 parts, 38 parts, etc.

[0059] In the raw materials for preparing the hydrophilic transparent glaze, the content of albite is 13 to 17 parts, for example, 13 parts, 14 parts, 14.5 parts, 15 parts, 15.5 parts, 16 parts, 17 parts, etc.

[0060] In the raw materials for preparing the hydrophilic transparent glaze, the content of wollastonite is 7 to 9 parts, for example, 7 parts, 7.5 parts, 8 parts, 8.5 parts, 9 parts, etc.

[0061] In the raw materials for preparing the hydrophilic transparent glaze, the content of calcite is 10 to 14 parts, for example, 10 parts, 11 parts, 11.5 parts, 12 parts, 12.5 parts, 13 parts, 14 parts, etc.

[0062] In the raw materials for preparing the hydrophilic transparent glaze, the content of kaolin is 15 to 18 parts, for example, 15 parts, 16 parts, 16.5 parts, 17 parts, 17.5 parts, 18 parts, etc.

[0063] In the raw materials for preparing the hydrophilic transparent glaze, the content of calcined talc is 5 to 7 parts, for example, 5 parts, 5.5 parts, 6 parts, 6.5 parts, 7 parts, etc.

[0064] In the raw materials for preparing the hydrophilic transparent glaze, the content of barium carbonate is 0.5 to 2 parts, for example, it can be 0.5 parts, 0.6 parts, 0.8 parts, 1 part, 1.2 parts, 1.5 parts, 2 parts, etc.

[0065] In the raw materials for preparing the hydrophilic transparent glaze, the content of zinc oxide is 1 to 3 parts, for example, 1 part, 1.5 parts, 2 parts, 2.5 parts, 3 parts, etc.

[0066] In the raw materials for preparing the hydrophilic transparent glaze, the content of strontium carbonate is 3 to 4 parts, for example, 3 parts, 3.2 parts, 3.4 parts, 3.6 parts, 3.8 parts, 4 parts, etc.

[0067] Preferably, the raw materials for preparing the hydrophilic transparent glaze further include the following components: 24 to 32 parts of water, 0.05 to 0.35 parts of an optional suspending agent, and 0.1 to 0.6 parts of an optional disintegrator.

[0068] In the raw materials for preparing the hydrophilic transparent glaze, the content of water is 23 to 32 parts, for example, 23 parts, 24 parts, 26 parts, 28 parts, 30 parts, 32 parts, etc.

[0069] In the raw materials for preparing the hydrophilic transparent glaze, the content of the optional suspending agent is 0.05 to 0.5 parts, for example, 0.05 parts, 0.1 parts, 0.2 parts, 0.3 parts, 0.4 parts, 0.5 parts, etc.

[0070] In the raw materials for preparing the hydrophilic transparent glaze, the content of the optional disintegrator is 0.1 to 0.6 parts, for example, 0.1 parts, 0.2 parts, 0.3 parts, 0.4 parts, 0.5 parts, 0.6 parts, etc.

[0071] Preferably, the functional ink layer comprises the following components by mass percentage: SiO2 62-65%, Al2O3 4.7-5.5%, CaO 14.8-15.6%, MgO 1.1-1.5%, K2O 2.3-2.7%, Na2O 0.1-0.3%, ZnO 9-11%, and the rest are ignition loss and impurities.

[0072] Taking the total mass of the chemical composition of the functional ink layer as 100%, the content of SiO2 is 62-65%, for example, 62%, 63%, 63.5%, 64%, 65%, etc.

[0073] Taking the total mass of the chemical composition of the functional ink layer as 100%, the content of Al2O3 is 4.7-5.5%, for example, 4.7%, 4.8%, 5%, 5.2%, 5.4%, 5.5%, etc.

[0074] Based on the total mass of the chemical composition of the functional ink layer being 100%, the CaO content is 14.8-15.6%, for example, 14.8%, 15%, 15.2%, 15.4%, 15.6%, etc.

[0075] Based on the total weight of the chemical composition of the functional ink layer being 100%, the content of MgO is 1.1-1.5%, for example, 1.1%, 1.2%, 1.3%, 1.4%, 1.5%, etc.

[0076] Based on the total mass of the chemical composition of the functional ink layer being 100%, the content of K2O is 2.3-2.7%, for example, 2.3%, 2.4%, 2.5%, 2.6%, 2.7%, etc.

[0077] Based on the total mass of the chemical composition of the functional ink layer being 100%, the content of Na2O is 0.1-0.3%, for example, 0.1%, 0.15%, 0.2%, 0.25%, 0.3%, etc.

[0078] Based on the total weight of the chemical composition of the functional ink layer being 100%, the content of ZnO is 9-11%, for example, 9%, 9.5%, 10%, 10.5%, 11%, etc.

[0079] Preferably, the raw materials for preparing the hydrophobic ink include the following components in percentage by mass: 38-42 parts of base glaze, 3-5 parts of hydrophobic agent, 44-48 parts of solvent, 6-8 parts of dispersant, 1-2 parts of defoaming agent, and 1-2 parts of anti-settling agent.

[0080] In the raw materials for preparing the hydrophobic ink, the content of the base glaze is 38 to 42 parts, for example, 38 parts, 39 parts, 40 parts, 41 parts, 42 parts, etc.

[0081] Among them, the raw materials for preparing the basic glaze include, by weight: 33-37 parts of quartz, 23-27 parts of potassium feldspar, 3-5 parts of kaolin, 11-13 parts of limestone, 3-5 parts of calcined talc, 9-11 parts of wollastonite, and 9-11 parts of zinc oxide.

[0082] In the raw materials for preparing the basic glaze, the content of quartz is 33 to 37 parts, for example, 33 parts, 34 parts, 35 parts, 36 parts, 37 parts, etc.

[0083] In the raw materials for preparing the basic glaze, the content of potassium feldspar is 23 to 27 parts, for example, 23 parts, 24 parts, 25 parts, 26 parts, 27 parts, etc.

[0084] In the raw materials for preparing the basic glaze, the content of kaolin is 3 to 5 parts, for example, 3 parts, 3.5 parts, 4 parts, 4.5 parts, 5 parts, etc.

[0085] In the raw materials for preparing the basic glaze, the content of limestone is 11 to 13 parts, for example, 11 parts, 11.5 parts, 12 parts, 12.5 parts, 13 parts, etc.

[0086] In the raw materials for preparing the basic glaze, the content of the burned talc is 3 to 5 parts, for example, 3 parts, 3.5 parts, 4 parts, 4.5 parts, 5 parts, etc.

[0087] In the raw materials for preparing the basic glaze, the content of wollastonite is 9 to 11 parts, for example, 9 parts, 9.5 parts, 10 parts, 10.5 parts, 11 parts, etc.

[0088] In the raw materials for preparing the basic glaze, the content of zinc oxide is 9 to 11 parts, for example, 9 parts, 9.5 parts, 10 parts, 10.5 parts, 11 parts, etc.

[0089] In the raw materials for preparing the hydrophobic ink, the content of the hydrophobic agent is 3 to 5 parts, for example, 3 parts, 3.5 parts, 4 parts, 4.5 parts, 5 parts, etc.

[0090] In the raw materials for preparing the hydrophobic ink, the content of the solvent is 44 to 48 parts, for example, 44 parts, 45 parts, 46 parts, 47 parts, 48 ​​parts, etc.

[0091] In the raw materials for preparing the hydrophobic ink, the content of the dispersant is 6 to 8 parts, for example, 6 parts, 6.5 parts, 7 parts, 7.5 parts, 8 parts, etc.

[0092] In the raw materials for preparing the hydrophobic ink, the content of the defoaming agent is 1 to 2 parts, for example, 1 part, 1.2 parts, 1.4 parts, 1.6 parts, 1.8 parts, 2 parts, etc.

[0093] In the raw materials for preparing the hydrophobic ink, the content of the anti-settling agent is 1 to 2 parts, for example, 1 part, 1.2 parts, 1.4 parts, 1.6 parts, 1.8 parts, 2 parts, etc.

[0094] Preferably, the inkjet pattern area of ​​the inkjet pattern layer accounts for 5% to 100% of the surface area of ​​the green body layer, for example, it can be 5%, 10%, 15%, 20%, 25%, 30%, 40%, 50%, 60%, 80%, 100%, etc.

[0095] In the present invention, the inkjet pattern can be predetermined and applied according to the color and pattern requirements of the blank element material itself to form an overlapping, supplementary or full coverage effect.

[0096] Preferably, the inkjet pattern layer further includes a bright functional ink layer.

[0097] In the present invention, the inkjet pattern layer also includes a bright functional ink layer that can produce a bright-matt change effect, which can be consistent with the graphic protection of the hydrophobic functional ink layer, and by adjusting the printing ink amount (grayscale), the bright-matt change effect of the convex and concave areas can be controlled.

[0098] Preferably, the bright functional ink layer comprises the following components by mass percentage: SiO2 19.5-23%, Al2O3 7-9.5%, Na2O 1.1-2.1%, CaO 6-7.1%, MgO 0.2-0.3%, ZnO 2-2.7%, and the rest are ignition loss and impurities.

[0099] Taking the total mass of the chemical composition of the bright functional ink layer as 100%, the SiO2 content is 19.5-23%, for example, it can be 19.5%, 20%, 20.5%, 21%, 21.5%, 22%, 23%, etc.

[0100] Taking the total mass of the chemical composition of the bright functional ink layer as 100%, the Al2O3 content is 7-9.5%, for example, it can be 7%, 7.2%, 7.5%, 7.8%, 8%, 8.2%, 8.5%, 9%, etc.

[0101] Taking the total mass of the chemical composition of the bright functional ink layer as 100%, the content of Na2O is 1.1-2.1%, for example, it can be 1.1%, 1.2%, 1.4%, 1.6%, 1.8%, 2%, 2.1%, etc.

[0102] Taking the total mass of the chemical composition of the bright functional ink layer as 100%, the CaO content is 6-7.1%, for example, 6%, 6.2%, 6.4%, 6.6%, 6.8%, 7%, 7.1%, etc.

[0103] Taking the total mass of the chemical composition of the bright functional ink layer as 100%, the MgO content is 0.2-0.3%, for example, 0.2%, 0.22%, 0.24%, 0.26%, 0.28%, 0.3%, etc.

[0104] Taking the total mass of the chemical composition of the bright functional ink layer as 100%, the ZnO content is 2-2.7%, for example, 2%, 2.2%, 2.3%, 2.4%, 2.5%, 2.6%, 2.7%, etc.

[0105] Preferably, the thickness of the protective glaze layer is less than 0.2 mm, for example, it can be 0.2 mm, 0.18 mm, 0.16 mm, 0.14 mm, 0.12 mm, 0.1 mm, 0.05 mm, 0.02 mm, etc.

[0106] In the present invention, a thin protective glaze layer is used, which can not only play an anti-fouling and wear-resistant effect, but also does not affect the presentation of texture and pattern effects because it is thin and transparent.

[0107] Preferably, the protective glaze layer comprises the following components by mass percentage: SiO2 46.5-49%, Al2O3 20-22.5%, CaO 10-11.2%, MgO 3.6-4.8%, K2O 3.8-4.6%, Na2O 1.2-2.1%, BaO 3.4-4.2%, ZnO 1.5-2.4%, and the rest are ignition loss and impurities.

[0108] Taking the total mass of the chemical composition of the protective glaze as 100%, the content of SiO2 is 46.5-49%, for example, it can be 46.5%, 47%, 47.5%, 48%, 48.5%, 49%, etc.

[0109] Taking the total mass of the chemical composition of the protective glaze as 100%, the content of Al2O3 is 20-22.5%, for example, it can be 20%, 20.5%, 21%, 21.5%, 22%, 22.5%, etc.

[0110] Taking the total mass of the chemical composition of the protective glaze as 100%, the CaO content is 10-11.2%, for example, 10%, 10.2%, 10.4%, 10.6%, 10.8%, 11%, 11.2%, etc.

[0111] Taking the total mass of the chemical composition of the protective glaze as 100%, the content of MgO is 3.6-4.8%, for example, it can be 3.6%, 3.8%, 4%, 4.2%, 4.4%, 4.6%, 4.8%, etc.

[0112] Based on the total mass of the chemical composition of the protective glaze being 100%, the content of K2O is 3.8-4.6%, for example, 3.8%, 4%, 4.2%, 4.4%, 4.6%, etc.

[0113] Taking the total mass of the chemical composition of the protective glaze as 100%, the content of Na2O is 1.2-2.1%, for example, it can be 1.2%, 1.4%, 1.6%, 1.8%, 2%, 2.1%, etc.

[0114] Based on the total mass of the chemical composition of the protective glaze being 100%, the content of BaO is 3.4-4.2%, for example, 3.4%, 3.6%, 3.8%, 4%, 4.2%, etc.

[0115] Based on the total mass of the chemical composition of the protective glaze being 100%, the content of ZnO is 1.5-2.4%, for example, 1.5%, 1.6%, 1.8%, 2%, 2.2%, 2.4%, etc.

[0116] Preferably, the raw materials for preparing the protective glaze include, by weight: 38-42 parts of potassium feldspar, 10-14 parts of sodium feldspar, 8-12 parts of dolomite, 11-15 parts of calcite, 6-10 parts of kaolin, 4-8 parts of calcined kaolin, 4-6 parts of burned talc, 3-5 parts of barium carbonate, and 1-3 parts of zinc oxide.

[0117] In the raw materials for preparing the protective glaze, the content of potassium feldspar is 38 to 42 parts, for example, 38 parts, 39 parts, 40 parts, 41 parts, 42 parts, etc.

[0118] In the raw materials for preparing the protective glaze, the content of albite is 10 to 14 parts, for example, 10 parts, 11 parts, 12 parts, 13 parts, 14 parts, etc.

[0119] In the raw materials for preparing the protective glaze, the content of dolomite is 8 to 12 parts, for example, 8 parts, 9 parts, 10 parts, 11 parts, 12 parts, etc.

[0120] In the raw materials for preparing the protective glaze, the content of calcite is 11 to 15 parts, for example, 11 parts, 12 parts, 13 parts, 14 parts, 15 parts, etc.

[0121] In the raw materials for preparing the protective glaze, the content of kaolin is 6 to 10 parts, for example, 6 parts, 7 parts, 8 parts, 9 parts, 10 parts, etc.

[0122] In the raw materials for preparing the protective glaze, the content of calcined kaolin is 4 to 8 parts, for example, 4 parts, 5 parts, 6 parts, 7 parts, 8 parts, etc.

[0123] In the raw materials for preparing the protective glaze, the content of the burned talc is 4 to 6 parts, for example, 4 parts, 4.5 parts, 5 parts, 5.5 parts, 6 parts, etc.

[0124] In the raw materials for preparing the protective glaze, the content of barium carbonate is 3 to 5 parts, for example, 3 parts, 3.5 parts, 4 parts, 4.5 parts, 5 parts, etc.

[0125] In the raw materials for preparing the protective glaze, the content of zinc oxide is 1 to 3 parts, for example, 1 part, 1.5 parts, 2 parts, 2.5 parts, 3 parts, etc.

[0126] Preferably, the raw materials for preparing the protective glaze include the following components: 24-32 parts of water, 0.05-0.5 parts of an optional suspending agent, and 0.1-0.6 parts of an optional disintegrator.

[0127] In the raw materials for preparing the protective glaze, the content of water is 24 to 32 parts, for example, 24 parts, 25 parts, 26 parts, 28 parts, 30 parts, 32 parts, etc.

[0128] In the raw materials for preparing the protective glaze, the content of the optional suspending agent is 0.05 to 0.5 parts, for example, 0.05 parts, 0.1 parts, 0.2 parts, 0.3 parts, 0.4 parts, 0.5 parts, etc.

[0129] In the raw materials for preparing the protective glaze, the content of the optional disintegrator is 0.1 to 0.6 parts, for example, 0.1 parts, 0.2 parts, 0.3 parts, 0.4 parts, 0.5 parts, 0.6 parts, etc.

[0130] In the above raw material formula of the present invention, the suspending agent is preferably methylcellulose.

[0131] In the above raw material formula of the present invention, the disintegrator is preferably sodium tripolyphosphate and / or acrylic acid polymer.

[0132] In the above raw material formula of the present invention, the water reducing agent is preferably sodium silicate.

[0133] In the above raw material formula of the present invention, the reinforcing agent is preferably vinyl acetate.

[0134] In the raw material formula of the functional ink layer of the present invention, the hydrophobic agent is preferably a fluorosilane coupling agent.

[0135] In the raw material formula of the functional ink layer of the present invention, the solvent is preferably ethyl acetate.

[0136] In the raw material formula of the functional ink layer of the present invention, the dispersant is preferably polyacrylamide.

[0137] In the raw material formula of the functional ink layer of the present invention, the defoaming agent is preferably polyether-modified silicone.

[0138] In the raw material formula of the functional ink layer of the present invention, the anti-settling agent is preferably aluminate.

[0139] In a second aspect, the present invention provides a method for preparing a ceramic rock plate having a three-dimensional color pattern and texture as described in the first aspect, the preparation method comprising the following steps:

[0140] The ceramic powder and ceramic granules are mixed, pressed and dried to obtain the green body;

[0141] Digitally printing hydrophobic ink, applying hydrophilic transparent glaze, inkjet printing patterns, and applying protective glaze are sequentially performed on the surface of the green body to obtain a glazed green body;

[0142] The glazed body is fired to obtain the ceramic rock slab with three-dimensional color patterns and textures.

[0143] Preferably, the method for preparing the ceramic rock slab having three-dimensional color patterns and textures comprises the following steps:

[0144] (1) Preparation of green body: mixing ceramic powder and ceramic granules, pressing, and drying to obtain the green body layer;

[0145] (2) Glazing: digitally printing hydrophobic ink, applying hydrophilic transparent glaze, inkjet printing patterns, and applying protective glaze on the surface of the body layer in sequence to obtain a glazed body;

[0146] (3) Firing: The glazed body is fired to obtain the ceramic rock slab having the three-dimensional color pattern and texture.

[0147] Preferably, the green body layer is prepared by the following method:

[0148] (a) preparing the powder: weighing the raw materials for preparing the ceramic powder according to the proportion, adding them to a ball mill, adding water, mixing, ball milling, spraying and sieving, to obtain the ceramic powder;

[0149] (b) preparing granular materials: pre-pressing the ceramic powder to prepare granular and / or flaky ceramic granular materials;

[0150] and / or directly drying the ball-milled slurry to prepare granular and / or flaky ceramic particles;

[0151] (c) Fabrication: Mixing the ceramic powder and ceramic granules according to a certain ratio to form a mixed fabric;

[0152] (d) pressing: pressing the above-mentioned structure material into a full-body green body;

[0153] (e) Drying: Drying the green body to evaporate water, thereby obtaining the green body layer having a preliminary concave-convex texture structure on the surface.

[0154] Preferably, the mass ratio of the raw material of the ceramic powder to water is (2.7-3.3):1, for example, it can be 2.7:1, 2.8:1, 3:1, 3.2:1, 3.3:1, etc.

[0155] Preferably, during the preparation of the green body layer, the raw materials are ball milled using a 60T ball mill.

[0156] Preferably, during the preparation of the green body layer, the ball milling time is 14 to 16 hours, for example, it can be 14 hours, 14.5 hours, 15 hours, 15.5 hours, 16 hours, etc., and the ball milling speed is 11 to 13 r / min, for example, it can be 11 r / min, 11.5 r / min, 12 r / min, 12.5 r / min, 13 r / min, etc.

[0157] Preferably, the screening is to pass through a 100-mesh sieve with a sieve residue of more than 95%, for example, the sieve residue of a 100-mesh sieve may be ≥95%, the sieve residue of an 80-mesh sieve may be ≥90%, the sieve residue of a 60-mesh sieve may be ≥85%, etc.

[0158] Preferably, the pressing uses a press to press the above-mentioned layout material into a full-body green body, and the granular material forms a randomly distributed position in the green body.

[0159] Preferably, the drying temperature of the green body is 150-200°C, for example, 150°C, 160°C, 170°C, 180°C, 190°C, 200°C, etc., and the drying time of the green body is 50-80min, for example, 50min, 60min, 70min, 80min, etc.

[0160] Preferably, the hydrophilic transparent glaze is prepared by the following method:

[0161] According to the element ratio of the hydrophilic transparent glaze, raw materials of corresponding elements, water, optional suspending agent, and optional disintegrating agent are added into a ball mill for mixing, ball milling and aging to obtain the hydrophilic transparent glaze.

[0162] Preferably, during the preparation of the hydrophilic transparent glaze, the raw materials are ball milled using a 10T ball mill.

[0163] Preferably, during the preparation of the hydrophilic transparent glaze, the ball milling time is 8 to 10 hours, for example, 8 hours, 8.5 hours, 9 hours, 9.5 hours, 10 hours, etc., and the ball milling speed is 16 to 18 r / min, for example, 16 r / min, 16.5 r / min, 17 r / min, 17.5 r / min, 18 r / min, etc.

[0164] Preferably, during the preparation of the hydrophilic transparent glaze, a sieving step is required after ball milling (ie, the ball-milled glaze slurry is sieved through a 325-mesh sieve).

[0165] Preferably, during the preparation process of the hydrophilic transparent glaze, the aging time is 30 to 35 hours, for example, 30 hours, 31 hours, 32 hours, 33 hours, 34 hours, or 35 hours, and the aging temperature is room temperature.

[0166] Preferably, the protective glaze is prepared by the following method:

[0167] According to the element ratio of the protective glaze, raw materials of corresponding elements, water, optional suspending agent, and optional debonding agent are added into a ball mill for mixing, ball milling and aging are performed to obtain the protective glaze.

[0168] Preferably, during the preparation of the protective glaze, the raw materials are ball milled using a 10T ball mill.

[0169] Preferably, during the preparation of the protective glaze, the ball milling time is 8 to 10 hours, for example, 8 hours, 8.5 hours, 9 hours, 9.5 hours, 10 hours, etc., and the ball milling speed is 16 to 18 r / min, for example, 16 r / min, 16.5 r / min, 17 r / min, 17.5 r / min, 18 r / min, etc.

[0170] Preferably, during the preparation of the protective glaze, a screening step is required after ball milling (ie, the ball-milled slurry is screened through a 325-mesh sieve).

[0171] Preferably, during the preparation process of the protective glaze, the aging time is 30 to 35 hours, for example, 30 hours, 31 hours, 32 hours, 33 hours, 34 hours, or 35 hours, and the aging temperature is room temperature.

[0172] Preferably, the printing grayscale of the digitally printed hydrophobic ink is 20% to 90%, for example, it can be 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, etc.

[0173] Preferably, the amount of the hydrophilic transparent glaze applied is 320-360 g / m 2 , for example, it can be 320g / m 2 , 325g / m 2, 330g / m 2 , 335g / m 2 , 340g / m 2 , 345g / m 2 , 350g / m 2 , 355g / m 2 , 360g / m 2 etc., with a specific gravity of 1.4-1.5 g / cm 3 , for example, it can be 1.4 g / cm 3 , 1.42g / cm 3 , 1.44g / cm 3 , 1.46g / cm 3 , 1.48g / cm 3 , 1.5g / cm 3 wait.

[0174] Preferably, the step of inkjet printing a pattern also includes a step of printing a bright functional ink, and the printing grayscale of the bright functional ink is 30 to 100%, for example, it can be 30%, 40%, 50%, 60%, 70%, 80%, 90%, 100%, etc.

[0175] In the present invention, the printing grayscale of the hydrophobic functional ink and the spraying amount of the transparent glaze jointly determine the depth of the depression of the graphic texture, and by adjusting the printing grayscale of the glossy functional ink, the bright and matte change effect of the predetermined area is controlled.

[0176] Preferably, the amount of the protective glaze applied is 70 to 120 g / m 2 , for example, it can be 70g / m 2 , 80g / m 2 , 90g / m 2 , 100g / m 2 , 110g / m 2 , 120g / m 2 etc., with a specific gravity of 1.16~1.2g / cm 3 , for example, it can be 1.16 g / cm 3 , 1.17g / cm 3 , 1.18g / cm 3 , 1.19g / cm 3 , 1.2g / cm 3 wait.

[0177] Preferably, the glazed body is fired, and the maximum firing temperature is 1150-1200°C, for example, 1150°C, 1160°C, 1170°C, 1180°C, 1190°C, 1200°C, etc.

[0178] Compared with the prior art, the present invention has the following beneficial effects:

[0179] (1) The present invention produces a concave-convex texture with varying depths and random distribution on the surface of the rock slab after drying and firing by utilizing the difference in density between the ceramic powder and ceramic granules in the green body, the random distribution and position of the ceramic granules in the green body, and their fully visible or semi-visible state on the surface, thereby making the concave-convex texture effect of the rock slab surface natural.

[0180] (2) The graphic texture formed by the interaction of the hydrophobic functional ink and the transparent glaze layer, although the position of the graphic texture on the surface of the rock plate is relatively fixed, the position of the concave and convex texture formed by the random distribution of the particles is not fixed. Moreover, the graphic texture formed by the interaction of the hydrophobic functional ink and the transparent glaze layer can form a single texture in the concave part of the concave and convex texture formed by the random distribution of the particles and form a superimposed texture in the convex part, and has the characteristics of change, thereby enriching the layering of the texture and the visual and tactile effect;

[0181] (3) The present invention achieves both the presentation of multi-layer texture effects and the predetermined superposition of inkjet color patterns (or also containing bright matte effect changes) by superimposing an inkjet pattern layer (or also containing bright functional ink) and a protective glaze layer. Since the transparent glaze layer and the protective glaze layer are transparent, they do not affect the presentation of the concave and convex texture of the entire body. As a result, the ceramic rock slab achieves a high-level aesthetic effect of visual and tactile integration produced by the combination of three-dimensional color patterns and textures. BRIEF DESCRIPTION OF THE DRAWINGS

[0182] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0183] Figure 1 This is an enlarged schematic diagram of the local structure between the concave-convex texture and the graphic texture of the ceramic rock plate of the present invention;

[0184] Among them, 1 is ceramic powder, 2 is ceramic granular material, and 3 is transparent glaze layer;

[0185] Among them, h1 represents the vertical distance between the depression and the protrusion in the concave-convex texture, h2 represents the vertical distance between the depression and the protrusion in the graphic texture, and H represents the vertical distance of the superposition of the concave-convex texture and the graphic texture.

[0186] Figure 2 This is a partial surface view of the full-body ceramic rock slab prepared in Example 1.

[0187] Figure 3 This is a partial surface image of the green body prepared in Example 1 after drying.

[0188] Figure 4 This is a partial surface view of the full-body ceramic rock slab prepared in Example 2.

[0189] Figure 5 This is a partial surface view of the full-body ceramic rock slab prepared in Example 3.

[0190] Figure 6 This is a partial surface view of the full-body ceramic rock slab prepared in Example 4.

[0191] Figure 7 This is a partial surface image of the ceramic rock slab prepared in Comparative Example 1.

[0192] Figure 8 This is a partial surface image of the ceramic rock slab prepared in Comparative Example 2.

[0193] Figure 9 This is a partial surface image of the ceramic rock slab prepared in Comparative Example 3.

[0194] Figure 10 This is a partial surface image of the ceramic rock slab prepared in Comparative Example 4.

[0195] Figure 11 This is a partial surface image of the ceramic rock slab prepared in Comparative Example 5.

[0196] Figure 12 This is a partial surface image of the ceramic rock slab prepared in Comparative Example 6. DETAILED DESCRIPTION

[0197] Unless otherwise defined herein, scientific and technical terms used in conjunction with the present invention shall have the meanings commonly understood by those of ordinary skill in the art. The meaning and scope of the terms should be clear; however, in the event of any potential ambiguity, the definitions provided herein take precedence over any dictionary or external definitions. In this application, the use of "or" means "and / or" unless otherwise stated. In addition, the use of the term "including" and other forms is non-limiting.

[0198] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0199] The present invention is further described below by way of examples. Unless otherwise specified, the materials in the examples were prepared according to existing methods or directly purchased from the market.

[0200] The pattern inks in the following embodiments were purchased from Taolixi Ceramic Glaze Color Co., Ltd. and Yangzi Pigment Co., Ltd., and the models were: Taolixi White 60123, Taolixi Blue 10767, Taolixi Cobalt Blue 10767, Taolixi Black 40118, Taolixi Brown 54861, Taolixi Lemon Yellow 31359, Taolixi Beige 31685, Yangzi Package Red 82016, Yangzi Package Yellow 82012, and the like.

[0201] Example 1

[0202] This embodiment provides a ceramic rock plate with a three-dimensional color pattern and texture. The ceramic rock plate with a three-dimensional color pattern and texture is prepared by the following method:

[0203] Preparation of S1 green body:

[0204] (1) Preparation of powder: weigh the following raw materials: 25 parts of ball clay, 20 parts of sodium aluminum sand, 15 parts of potassium sodium water abrasive, 11 parts of ultra-white stone powder, 8 parts of polishing mud, 6 parts of medium-temperature sand, 4 parts of pyrophyllite, 5 parts of diopside, 4 parts of high clay, 2 parts of ultra-white mud, 0.3 parts of debonding agent (Duramax D-3019), 0.3 parts of water reducer (sodium silicate), and 0.3 parts of reinforcing agent (vinyl acetate). Put the above raw materials and water into a ball mill (60T) at a ratio of 3:1 and mill at a speed of 15r / min for 12h. After ball milling into slurry, add colorant according to the required color requirements and stir evenly to obtain a slurry of the predetermined color. Then, use a spray tower to prepare a green body powder of the predetermined color from the slurry of the predetermined color. The moisture content of the powder is 6.5%, and the powder particle size is such that the residue on the sieve of the 100-mesh sieve is more than 95%;

[0205] (2) Preparation of granular materials:

[0206] ① Feed the powder of predetermined color into the granulator and pre-press it into flakes;

[0207] ② Drying the slurry of the predetermined color into a sheet;

[0208] Then, the flakes in ① or / and ② are crushed by cutting or rolling to form granular materials with a thickness of no more than 3 mm and a maximum diameter of no more than 10 mm, and the moisture content of the granular materials is 6.5%;

[0209] (3) Fabrication: Evenly mix 75% of the green body powder and 25% of the granular material to form a mixed fabric;

[0210] (4) Pressing the green body: The above-mentioned layout material is pressed into a full green body by a press, and the granular material forms a randomly distributed position in the green body, wherein the density of the granular material area is 1.96g / cm 3 The density of the conventional powder area is 1.88g / cm3 ;

[0211] (5) Drying the green body: The green body (moisture content 6.5%) is transported to a drying kiln for drying at a drying temperature of 180°C for 60 minutes. The moisture in the green body is dried and evaporated. After drying, the shrinkage ratio of the granular material to the conventional ceramic powder is 1: (1.05-1.1). The shrinkage rate of the granular material is slightly smaller than that of the conventional ceramic powder. As a result, the granular material on the surface of the green body forms a preliminary bulge on the surface of the green body after drying.

[0212] Preparation of S2 transparent glaze and protective glaze:

[0213] (1) Preparation of transparent glaze: According to the composition of the raw materials of the transparent glaze, the following components were weighed: 36 parts of potassium feldspar, 15 parts of sodium feldspar, 8 parts of wollastonite, 12 parts of calcite, 16.5 parts of kaolin, 6 parts of calcined talc, 1 part of barium carbonate, 2 parts of zinc oxide, and 3.5 parts of strontium carbonate; 100 parts of the above raw materials, 27 parts of water, 0.15 parts of methyl cellulose, and 0.35 parts of sodium tripolyphosphate were added to a ball mill (10T) in proportion, and ball milled for 9 hours, and passed through a 325-mesh sieve. The residue on the sieve was measured to be 0.3%, and then passed through a 325-mesh sieve and aged for 32 hours to obtain a transparent glaze;

[0214] The chemical composition of the transparent glaze, calculated by mass percentage, includes: SiO2 46.21%, Al2O3 17.89%, CaO 9.27%, MgO 3.7%, K2O 3.72%, Na2O 2.2%, BaO 1.04%, ZnO 1.88%, SrO 3.31%, and the remainder is ignition loss and impurities;

[0215] (2) Preparation of protective glaze: According to the composition of the raw materials of the protective glaze, the following components were weighed: 40 parts of potassium feldspar, 12 parts of sodium feldspar, 10 parts of dolomite, 13 parts of calcite, 8 parts of kaolin, 6 parts of calcined kaolin, 5 parts of burned talc, 4 parts of barium carbonate, and 2 parts of zinc oxide; 100 parts of the above raw materials, 28 parts of water, 0.15 parts of methyl cellulose, and 0.35 parts of sodium tripolyphosphate were added to a ball mill (10T) in proportion, and the mixture was ball-milled for 9 hours, passed through a 325-mesh sieve, and the sieve residue was measured to be 0.3%. The mixture was then passed through a 325-mesh sieve and aged for 32 hours to obtain the protective glaze;

[0216] The chemical composition of the protective glaze, calculated by mass percentage, includes: SiO2 47.73%, Al2O3 21.18%, CaO 10.62%, MgO 4.17%, K2O 4.25%, Na2O 1.66%, BaO 3.8%, ZnO 1.96%, and the rest is ignition loss and impurities.

[0217] S3 digital printing functional ink layer:

[0218] Digitally printing hydrophobic functional ink on the surface of the green body layer to form a hydrophobic functional ink layer, wherein the hydrophobic functional ink is designed to have a printing grayscale between 20% and 90% according to the needs of the graphics;

[0219] The functional ink layer comprises the following components by mass percentage: SiO2 63.5%, Al2O3 5.1%, CaO 15.2%, MgO 1.3%, K2O 2.5%, Na2O 0.2%, ZnO 10%, and the remainder is ignition loss and impurities;

[0220] Preparation of hydrophobic functional ink: weigh the components according to the composition of the raw materials of the ink: 40 parts of base glaze, 4 parts of hydrophobic agent (fluorosilane coupling agent), 46 parts of solvent (ethyl acetate), 7 parts of dispersant (polyacrylamide), 1.5 parts of defoaming agent (polyether modified silicone), and 1.5 parts of anti-settling agent (aluminate) are evenly mixed to obtain the functional ink; wherein, the preparation of the base glaze includes the following raw materials in parts by weight: 35 parts of quartz, 25 parts of potassium feldspar, 4 parts of kaolin, 12 parts of limestone, 4 parts of calcined talc, 10 parts of wollastonite, and 10 parts of zinc oxide. The above raw materials are mixed evenly and calcined at 1100°C until melted, then quickly poured into cold water and quenched to form a frit, and then ground into powder with a particle size of 300 nm to obtain the base glaze.

[0221] S4 transparent glaze:

[0222] A transparent glaze is sprayed on the hydrophobic functional ink layer to form a transparent glaze layer, wherein the specific gravity of the transparent glaze is 1.4 g / cm 3 , spraying amount is 340g / m 2 ;

[0223] S5 printing inkjet pattern layer:

[0224] Printing inkjet color patterns on the surface of the transparent glaze layer (printing grayscale is designed to be between 10% and 100%) to form an inkjet pattern layer, wherein the inkjet pattern can be predetermined according to the color and pattern requirements of the blank element material itself to form a superimposed, supplementary or full coverage effect;

[0225] S6 protective glaze:

[0226] A protective glaze is sprayed on the surface of the inkjet pattern to form a protective glaze layer, wherein the specific gravity of the protective glaze is 1.18 g / cm 3 , spraying amount is 95g / m 2 ;

[0227] S7 firing

[0228] The glazed body is sent into a kiln with a maximum temperature of 1180°C for firing to obtain the ceramic rock plate. During the firing process, the body shrinks as a whole, so that the particles on the surface of the body after firing form a concave-convex texture with a protrusion height of 0.1 to 1 mm. At the same time, the hydrophobic functional ink and the transparent glaze layer work together to form a graphic texture with a recessed depth of 0.2 to 1.5 mm. The graphic texture formed by the hydrophobic functional ink and the transparent glaze layer can form a single texture in the concave part of the concave-convex texture formed by the random distribution of the particles, and can form a superimposed layered texture with a maximum drop of no more than 2.5 mm in the convex part. In addition, through the superposition of the inkjet pattern layer and the protective glaze layer, it is achieved that both the presentation of multi-layer texture effects and the predetermined superposition of inkjet color patterns are achieved, so that the ceramic rock plate achieves a high-level aesthetic effect of visual and tactile integration produced by the combination of three-dimensional color patterns and textures. Figure 2 、 3 shown.

[0229] Example 2

[0230] This embodiment provides a ceramic rock plate with a three-dimensional color pattern and texture. Compared with Example 1, the difference of this embodiment is that in Example 1, while printing the inkjet color pattern in step S5, the bright functional ink is printed, and the printed pattern is consistent with the pattern of the hydrophobic functional ink layer, and the light-matt change effect of the convex and concave areas is controlled by adjusting the printing ink amount (grayscale) (designed between 30 and 100%). Figure 4 As shown;

[0231] The manufacturer of the above-mentioned bright functional ink is: Taolixi Ceramic Glaze Color Co., Ltd., and the model is: Taolixi Bright 00127.

[0232] Example 3

[0233] This embodiment provides a ceramic rock plate with three-dimensional color patterns and textures. Compared with Example 1, the difference of this embodiment is that in Example 1, the fabric is: 50% of the green body powder and 50% of the granular material are evenly mixed to form a mixed layout material, so that the granular material in the prepared ceramic rock plate has more concave and convex textures, thereby making the content richer and the three-dimensional sense stronger. Figure 5 shown.

[0234] Example 4

[0235] This embodiment provides a ceramic rock plate with three-dimensional color patterns and textures. Compared with Example 1, the difference of this embodiment is that in Example 1, the fabric is: 95% of the green body powder and 5% of the granular material are evenly mixed to form a mixed layout material, so that the graphic texture in the prepared ceramic rock plate accounts for a larger proportion, and the concave and convex texture formed by the granular material is embellished therein, such as Figure 6 shown.

[0236] Comparative Example 1

[0237] This comparative example provides a ceramic rock plate. The difference from Example 1 is that the density of the particle area in the blank of this comparative example is 2.1g / cm 3 The density of the conventional powder area is 1.88g / cm 3 (normally they remain basically unchanged), the increase in the density of the particle material area expands the density range of the green body. Although the surface of the rock plate products after drying and firing has a more obvious concave and convex texture, the expansion of the green body density range leads to uneven overall density of the green body and is prone to stratification or particle cracking, thereby affecting product quality. Figure 7 shown.

[0238] Comparative Example 2

[0239] This comparative example provides a ceramic rock plate, which is different from Example 1 in that the surface of the green body layer of this comparative example is not printed with hydrophobic functional ink (i.e., the hydrophobic functional ink layer is cancelled). Although the surface of the product has a concave-convex texture effect of varying depths formed by random distribution of particles, the texture content is too monotonous, and there is no graphic texture formed by the interaction of the hydrophobic functional ink and the transparent glaze layer, and the changing effect formed by the concave-convex texture, so the texture layering is not rich, such as Figure 8 shown.

[0240] Comparative Example 3

[0241] This comparative example provides a ceramic rock plate. The difference from Example 1 is that the use of granular materials is eliminated in the green body of this comparative example. Instead, 100% conventional ceramic powder is used to make the surface of the green body layer smoother and without a concave-convex texture effect. Although the hydrophobic functional ink and the transparent glaze layer work together to form a graphic texture, the position of the graphic texture on the surface of the rock plate is relatively fixed, and there is no laminated texture, so there is no variability and the texture layering is not rich. Figure 9 shown.

[0242] Comparative Example 4

[0243] This comparative example provides a ceramic rock plate. The difference from Example 1 is that the use of ceramic powder is cancelled in the green body of this comparative example, and 100% ceramic granular material is used instead. Since the density of the granular material is basically the same, the concave and convex texture on the surface of the ceramic rock plate is not obvious, and it is basically flat. The surface only has a graphic texture formed by the interaction of hydrophobic functional ink and a transparent glaze layer. However, the position of the graphic texture on the surface of the rock plate is relatively fixed, and there is no laminated texture, so there is no variability, and the texture layering is not rich. Figure 10 shown.

[0244] Comparative Example 5

[0245] This comparative example provides a ceramic rock plate, which is different from Example 1 in that the particle size of the ceramic powder is 80% of the residue after passing through a 30-mesh sieve. Since the particle size of the powder is relatively coarse as a whole, the difference between it and the particle size of the granular material is not too large, so that the concave and convex texture on the surface of the prepared ceramic rock plate is not too obvious, resulting in little difference between the concave and convex texture and the graphic texture. Figure 11 shown.

[0246] Comparative Example 6

[0247] This comparative example provides a ceramic rock plate. The difference from Example 1 is that the thickness of the granular material is 3.5 mm. Although the concave and convex texture of the surface of the ceramic rock plate is obvious, the thick granular material leads to poor molding and easy cracking of the particle edges, thereby affecting the product quality. Figure 12 shown.

[0248] From Example 1 Figures 2-3 It can be seen that the surface of the ceramic rock plate prepared by the technical solution of the present invention has a concave and convex texture of varying depths formed by the random distribution characteristics of the granular material, and a graphic texture formed by the interaction of the hydrophobic functional ink and the transparent glaze layer. The combination of the two forms a multi-layer texture with rich layers and variability, and the superposition of the predetermined inkjet pattern makes the texture have a strong three-dimensional sense of layering and rich visual and tactile effects.

[0249] Combined with Example 1, Comparative Example 1 and Figure 7 It can be seen that when the volume density of the granular material area in the comparative green body layer increases, the volume density range of the green body is correspondingly expanded, resulting in uneven overall density of the green body and easy occurrence of stratification or particle cracking, which leads to poor molding and affects product quality.

[0250] Combined with Example 1, Comparative Example 2 and Figure 8 It can be seen that when the surface of the comparative green body layer is not printed with hydrophobic functional ink (i.e. the hydrophobic functional ink layer is cancelled), although the surface of the stone slab product has a concave and convex texture effect of varying depths formed by the random distribution of particles, the texture content is too monotonous, and there is no graphic texture formed by the joint action of the hydrophobic functional ink and the transparent glaze layer, and the changing effect formed by the concave and convex texture, so the texture layering is not rich.

[0251] Combined with Example 1, Comparative Example 3 and Figure 9 It can be seen that when the granular material is eliminated from the green body layer of the comparative example and only 100% conventional ceramic powder is used, the surface of the green body layer is relatively smooth and there is no concave-convex texture effect. Although the hydrophobic functional ink and the transparent glaze layer work together to form a graphic texture, the position of the graphic texture on the surface of the rock plate is relatively fixed, and there is no laminated texture, so there is no variability and the texture layering is not rich.

[0252] Combined with Example 1, Comparative Example 4 and Figure 10 It can be seen that when the comparative example uses 100% ceramic particles, because the density of the particles is basically the same, the concave and convex texture of the surface of the ceramic rock plate is not obvious, and it is basically flat. There is only graphic texture on the surface, and the position of the graphic texture on the surface of the rock plate is relatively fixed. There is no layered texture, so there is no variability and the texture layering is not rich.

[0253] Combined with Example 1, Comparative Example 5 and Figure 11 It can be seen that when the comparative example uses a coarser particle size powder, the difference between its particle size and that of the granular material is not too large, so that the concave and convex texture on the surface of the ceramic rock plate is not too obvious, and then the concave and convex texture is not much different from the graphic texture.

[0254] Combined with Example 1, Comparative Example 6 and Figure 12 It can be seen that when the thickness of the comparative granular material is 3.5 mm, although the concave and convex texture of the surface of the ceramic rock plate is more obvious, the granular material is thicker, resulting in poor molding and easy cracking of the particle edges, thus affecting product quality.

[0255] The ceramic rock slab of the present invention produces a surface with uneven textures of varying depths and random distribution after drying and firing by the difference in density of ceramic powder and ceramic granular material in the green body, the random distribution and position of ceramic granular material in the green body, and its fully visible, semi-hidden and semi-visible states on the surface, so that the surface of the rock slab has a natural uneven texture effect; and the graphic texture is formed by the combined action of hydrophobic functional ink and transparent glaze layer. Although the position of the graphic texture on the surface of the rock slab is relatively fixed, the position of the uneven texture formed by it is not fixed due to the random distribution characteristics of the granular material, and the hydrophobic functional ink and transparent glaze layer work together to form a The resulting graphic texture can form a single texture in the concave part of the concave and convex texture formed by the random distribution of the granular material, and can also form a superimposed texture in the convex part, and it has variability, which enriches the layering of the texture and the visual and tactile effect; then through the superposition of the inkjet pattern layer (or also containing bright functional ink) and the protective glaze layer, and because the transparent glaze layer and the protective glaze layer are transparent, it will not affect the presentation of the concave and convex texture of the whole body, and realizes the presentation of multi-layer texture effects and the predetermined superposition of inkjet color patterns (or also containing bright and matte effect changes), so that the ceramic rock plate achieves a high-level aesthetic effect of visual and tactile integration produced by the combination of three-dimensional color patterns and textures.

[0256] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A ceramic rock plate with three-dimensional color patterns and textures, characterized in that: The ceramic rock plate with three-dimensional color patterns and textures comprises a body layer, a functional ink layer, a transparent glaze layer, an inkjet pattern layer and a protective glaze layer stacked in sequence, and the ceramic rock plate has a concave-convex texture structure, a graphic texture structure and a laminated texture structure; The concave-convex texture structure is formed on the surface of the green body layer by the combination of ceramic powder and ceramic granules, and the density of the ceramic powder region is 1.86-1.90 g / cm 3 The density of the granular material region is 1.94-1.98 g / cm 3 ; The ceramic powder is a ceramic powder with a particle size of more than 95% of the residue passing through a 100-mesh sieve; the ceramic granules are granular and / or flaky ceramic granules with a thickness of less than 3 mm and a maximum width of less than 10 mm; The functional ink layer is formed of hydrophobic ink, the transparent glaze layer is formed of hydrophilic transparent glaze, and the graphic texture structure is a texture with a concave depth formed by the displacement effect of the hydrophobic ink and the hydrophilic transparent glaze; The laminated texture structure is a superimposed texture formed by the graphic texture structure on the concave-convex texture structure.

2. The ceramic rock slab with three-dimensional color patterns and textures according to claim 1, characterized in that: The vertical distance between the depression and the protrusion of the ceramic rock plate at the position where the concave-convex texture structure is formed is 0.1-1 mm; The vertical distance between the depression and the protrusion of the ceramic rock plate at the position where the graphic texture structure is formed is 0.2-1.5 mm; The vertical distance between the depression and the protrusion of the ceramic rock plate at the position where the superimposed texture structure is formed is less than 2.5 mm.

3. The ceramic rock plate with three-dimensional color patterns and textures according to claim 1 is characterized in that: The drying shrinkage ratio of the ceramic powder and the ceramic granules is (1.05-1.1):

1.

4. The ceramic rock plate with three-dimensional color patterns and textures according to claim 3 is characterized in that: Taking the mass of the raw materials for preparing the green body layer as 100%, the raw materials for preparing the green body layer include: 50-95% of ceramic powder and 5-50% of ceramic granules.

5. The ceramic rock slab with three-dimensional color patterns and textures according to claim 1, characterized in that: The transparent glaze layer comprises the following components by mass percentage: SiO2 45-47.5%, Al2O3 16.5-19.3%, CaO 8.7-9.8%, MgO 3.3-4.1%, K2O 3.3-4.2%, Na2O 1.9-2.5%, BaO 0.8-1.3%, ZnO 1.6-2.2%, SrO 3-3.6%, and the remainder is ignition loss and impurities; The raw materials for preparing the hydrophilic transparent glaze include the following components in parts by weight: 34-38 parts of potassium feldspar, 13-17 parts of sodium feldspar, 7-9 parts of wollastonite, 10-14 parts of calcite, 15-18 parts of kaolin, 5-7 parts of calcined talc, 0.5-2 parts of barium carbonate, 1-3 parts of zinc oxide, 3-4 parts of strontium carbonate, 24-32 parts of water, 0.05-0.35 parts of suspending agent, and 0.1-0.6 parts of degumming agent.

6. The ceramic rock slab with three-dimensional color patterns and textures according to claim 1, characterized in that: The functional ink layer comprises the following components by mass percentage: SiO2 62-65%, Al2O3 4.7-5.5%, CaO 14.8-15.6%, MgO 1.1-1.5%, K2O 2.3-2.7%, Na2O 0.1-0.3%, ZnO 9-11%, and the remainder is ignition loss and impurities; Among them, the raw materials for preparing the hydrophobic ink include the following components in percentage by mass: 38-42 parts of base glaze, 3-5 parts of hydrophobic agent, 44-48 parts of solvent, 6-8 parts of dispersant, 1-2 parts of defoaming agent, and 1-2 parts of anti-settling agent.

7. The ceramic rock plate with three-dimensional color patterns and textures according to claim 6, characterized in that: The raw materials for preparing the basic glaze include, by weight, 33-37 parts of quartz, 23-27 parts of potassium feldspar, 3-5 parts of kaolin, 11-13 parts of limestone, 3-5 parts of calcined talc, 9-11 parts of wollastonite, and 9-11 parts of zinc oxide.

8. The ceramic rock plate with three-dimensional color patterns and textures according to claim 1, characterized in that: The inkjet pattern area of ​​the inkjet pattern layer accounts for 5 to 100% of the surface area of ​​the green body layer.

9. The ceramic rock plate with three-dimensional color patterns and textures according to claim 1 or 8, characterized in that: The inkjet pattern layer further includes a bright functional ink layer; The bright functional ink layer includes the following components by mass percentage: SiO2 19.5-23%, Al2O3 7-9.5%, Na2O 1.1-2.1%, CaO 6-7.1%, MgO 0.2-0.3%, ZnO 2-2.7%, and the rest is ignition loss and impurities.

10. The ceramic rock slab with three-dimensional color patterns and textures according to claim 1, characterized in that: The thickness of the protective glaze layer is less than 0.2 mm; The protective glaze layer comprises the following components by mass percentage: SiO2 46.5-49%, Al2O3 20-22.5%, CaO 10-11.2%, MgO 3.6-4.8%, K2O 3.8-4.6%, Na2O 1.2-2.1%, BaO 3.4-4.2%, ZnO 1.5-2.4%, and the rest are ignition loss and impurities.

11. A method for preparing a ceramic rock plate having a three-dimensional color pattern and texture according to any one of claims 1 to 10, characterized in that: The preparation method comprises the following steps: The ceramic powder and ceramic granules are mixed, pressed and dried to obtain the green body; Digitally printing hydrophobic ink, applying hydrophilic transparent glaze, inkjet printing patterns, and applying protective glaze are sequentially performed on the surface of the green body to obtain a glazed green body; The glazed body is fired to obtain the ceramic rock slab with three-dimensional color patterns and textures.

12. The method for preparing a ceramic rock plate with a three-dimensional color pattern and texture according to claim 11, characterized in that: The printing grayscale of the digital printing hydrophobic ink is 20-90%.

13. The method for preparing a ceramic rock slab having a three-dimensional color pattern and texture according to claim 11, characterized in that: The amount of the hydrophilic transparent glaze applied is 320-360 g / m 2 , specific gravity is 1.4~1.5 g / cm 3 .

14. The method for preparing a ceramic rock plate with a three-dimensional color pattern and texture according to claim 11, characterized in that: The step of inkjet printing a pattern also includes a step of printing a bright functional ink, and the printing grayscale of the bright functional ink is 30-100%.

15. The method for preparing a ceramic rock plate having a three-dimensional color pattern and texture according to claim 11, characterized in that: The amount of the protective glaze applied is 70-120 g / m 2 , specific gravity is 1.16~1.2 g / cm 3 .

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