Ceramic rock plate with decorative effect and production process thereof

Abstract

The invention discloses a ceramic rock plate with a decorative effect and a production process thereof, and belongs to the technical field of ceramics. The rock plate is composed of a green body layer, a ground glaze layer, a cover glaze layer and an ink jet pattern layer, and after firing, a micro-nano rough and low-surface-energy synergistic protection layer is formed through oxygen-nitrogen plasma activation, a hydrothermal reaction of aluminum salt and an ammonia source compound, high-temperature calcination and silane derivative dipping and curing. The green body takes wollastonite, quartz sand and the like as raw materials, and the ground glaze and the cover glaze adopt a feldspar-quartz-nepheline system; after firing, performing plasma treatment and hydrothermal treatment to generate needle-shaped aluminum oxide, and introducing a silane derivative to realize double functions of super-hydrophobicity and wear resistance. Compared with the prior art, the anti-fouling and wear-resistant coating reaches the national standard 5 level, the process is simple, and the coating can be directly connected to an existing production line and is suitable for high-end wall floor decoration.

Description

Technical Field

[0001] The present invention relates to the field of ceramic technology, and in particular to a ceramic rock slab with decorative effect and a production process thereof. Background Art

[0002] As a high-performance building material, ceramic rock slabs are widely used in architectural decoration due to their excellent wear resistance, corrosion resistance, and decorative effects. However, existing ceramic rock slabs still have certain limitations in terms of anti-fouling and wear resistance. For example, while existing ceramic rock slabs have a certain glossiness and wear resistance, their anti-fouling performance still needs to be improved. Other ceramic rock slabs with transparent linear textures that imitate stone decorative effects, while visually impressive, are easily contaminated and difficult to clean in actual use, affecting their service life and aesthetics.

[0003] Furthermore, the existing production process for ceramic rock slabs is complex, typically requiring multiple steps, including body preparation, glaze formulation, glazing, and firing. These processes are not only time-consuming and energy-intensive, but also require high equipment requirements, increasing production costs. Furthermore, while some existing post-processing methods, such as simple coatings, can improve surface properties to a certain extent, the coatings often lack sufficient adhesion and durability to meet the needs of long-term use.

[0004] Chinese patent application CN114276016A discloses a soft glaze ceramic rock plate and its preparation method. and The ratio is adjusted, and CaO, MgO, ZnO and SrO are added as composite flux matte agents to achieve the natural soft light effect of soft glazed ceramic rock plate, with a delicate and smooth surface and a glossiness of , and has excellent wear resistance. At the same time, this technical solution simplifies the process of preparing soft polished tiles, saves process time, and has high efficiency and economic benefits.

[0005] Another Chinese patent application, CN118420332A, discloses a ceramic rock slab with a large-area transparent linear pattern and a method for preparing it. This invention uses inkjet printing to remove the ink and the glaze on the surface of the transparent powder, leaving the transparent powder layer uncovered by the glaze. This results in a ceramic rock slab with an inkjet pattern and a transparent linear pattern.

[0006] While these two patents have achieved significant progress in terms of soft light effects and stone-like decorative effects, they still have shortcomings in terms of anti-fouling and wear resistance. While soft-glazed ceramic slabs have a smooth surface, they are easily contaminated and difficult to clean when exposed to oil and stains. While ceramic slabs with stone-like decorative effects offer visually impressive results, in practice, they are easily contaminated and difficult to clean, impacting their lifespan and aesthetics. Summary of the Invention

[0007] In order to address the deficiencies in the prior art, the present invention aims to provide a ceramic rock slab with decorative effects and a production process thereof.

[0008] In order to achieve the above-mentioned object of the invention, the present invention adopts the following technical solutions: A ceramic rock plate with decorative effect: the ceramic rock plate includes a three-layer structure from the inside to the outside, which is a body layer, a base glaze layer, and a surface glaze layer in sequence; the ceramic rock plate also includes an inkjet pattern layer, and the inkjet pattern layer covers the surface of the surface glaze layer. The ceramic rock plate is post-processed after firing.

[0009] The post-processing method is as follows: The polished rock slab is first activated by oxygen-nitrogen plasma, then immersed in a treatment solution composed of aluminum sulfate 18-hydrate and an ammonia source compound, taken out after a hydrothermal reaction, dried and calcined; then immersed in a tetrahydrofuran coating solution containing a silane derivative and a curing agent, and cured to obtain the ceramic rock slab.

[0010] The production process of a ceramic rock plate with decorative effect is as follows: Step 1, green body preparation: the green body layer raw materials are composed of the following mass percentages: wollastonite 35%-45%, quartz sand 15%-20%, potassium feldspar powder 5%-15%, mica powder 4%-8%, bauxite 4%-8%, pyrophyllite 2%-6%, sodium borate 1%-3%, zirconia ceramic sand 3%-7%, diopside 4%-8%, high clay 2%-4%, ceramic dispersant 0.3%-0.8%, and sodium silicate 0.3%-0.8%; The raw materials and water are mixed in a mass ratio of 2-4:1, refined by a ball mill, and spray-dried to obtain a green body material; Molding and drying: The blank is pressed and formed under 300-400 bar hydraulic pressure and then dried for later use; Step 2: Glaze preparation (1) Preparation of base glaze: The raw materials are composed of the following mass percentages: albite 20%-40%, quartz 25%-35%, nepheline syenite 10%-20%, kaolin 5%-15%, dolomite 5%-10%, and anorthite 5%-10%; Processing technology, in parts by weight: 80-120 parts of raw materials, add 20-40 parts of water, 0.1-0.3 parts of sodium polyacrylate, 0.1-0.5 parts of sodium tripolyphosphate, ball mill, sieve, and age; (2) Glaze preparation: The raw materials are composed of the following mass percentages: nepheline syenite 30%-35%, spodumene 12%-20%, wollastonite 10%-20%, diopside 5%-15%, apatite 2%-6%, celsium feldspar 1%-5%, quartz 5%-10%, calcined α-alumina powder 2%-6%, calcined zinc oxide 3%-8%, and strontium carbonate 1%-5%; Processing technology: same bottom glaze ball milling, screening and aging process; Step 3: Glazing and decoration Bottom glaze layer: applied to the surface of the body; Top glaze layer: covers the bottom glaze layer; Inkjet pattern: Digital inkjet printing is performed on the surface of the glaze layer to form a decorative texture; Step 4: Firing and post-processing High temperature firing: the glaze layer is melted, combined and vitrified, and after firing, it is subjected to edge grinding and polishing, and then post-processing to obtain the ceramic rock plate.

[0011] In the green body preparation of step 1, the green body material obtained by spray drying has a moisture content of 6%-7% and a particle size of 0.3-0.8% or less after sieving through a 300-400 mesh sieve.

[0012] In the preparation of the base glaze in step 2, the base glaze is ball-milled for 5-8 hours until the fineness is less than 0.5-1% on a 300-400 mesh sieve, and then aged for 24-72 hours.

[0013] The base glaze layer in step 3 is applied to the surface of the green body with a specific gravity of 1.8-2.0 g / m³ and a dosage of 400-600 g / m².

[0014] The top glaze layer in step 3 covers the bottom glaze layer, has a specific gravity of 1.6-2.0 g / m³, and a dosage of 350-450 g / m².

[0015] The high temperature firing in the firing and post-treatment of step 4 is performed by stepwise heating: 20-40°C / min to 480-520°C, 15-25°C / min to 800-900°C, 5-15°C / min to 1000-1150°C, and firing at 1000-1150°C for 20-80 minutes.

[0016] The post-treatment method is as follows, in parts by weight: The polished rock slab is placed in a plasma device with a volume ratio of oxygen and nitrogen of 0.5-2:1, with a processing power of 200-400W and an air pressure of 40-60Pa, and the treatment is carried out for 10-20 minutes; 1-2 parts of aluminum sulfate 18hydrate and 10-15 parts of an ammonia source compound are added to 80-120 parts of water and mixed evenly to obtain a treatment liquid, the above-mentioned rock slab after plasma treatment is immersed in the treatment liquid, and treated at 180-220°C under closed conditions for 10-30 hours, taken out and dried at 80-120°C for 1-3 hours, and calcined at 550-600°C for 1-3 hours; 1-2 parts of a silane derivative and 0.2-0.4 parts of a curing agent are added to 80-100 parts of tetrahydrofuran and stirred evenly to obtain a coating liquid, the above-mentioned calcined rock slab is immersed in the coating liquid for 10-20 minutes, and then taken out and cured at 100-120°C for 0.5-3 hours to obtain the ceramic rock slab.

[0017] The ammonia source compound is at least one of hexamethylenetetramine, diammonium hydrogen phosphate, and triethanolamine; The silane derivative is at least one of methyltrimethoxysilane, perfluorodecyltriethoxysilane and octamethylcyclotetrasiloxane.

[0018] The effects of the various substances in the post-treatment method are as follows: Aluminum sulfate 18hydrate reacts with an ammonia source to form a micro-nano structure, thereby enhancing surface roughness.

[0019] The ammonia source compound provides an alkaline environment to promote the growth of needle-shaped alumina.

[0020] Silane derivatives form low surface energy coatings that impart superhydrophobicity.

[0021] Curing agents promote silane cross-linking and curing, improving coating durability.

[0022] Tetrahydrofuran is used as a solvent to evenly disperse the silane and the curing agent.

[0023] Compared with the existing technology, it has the following beneficial effects: 1) Through an innovative post-processing process, the present invention constructs a synergistic protective layer of micro-nano structure and low surface energy coating on the surface of the ceramic rock slab, which significantly enhances the anti-fouling and wear resistance of the ceramic rock slab, enabling it to reach the highest level in both pollution resistance and wear resistance tests.

[0024] 2) The micro-nano structure and low surface energy coating formed by the post-processing process of the present invention not only improve the surface's anti-fouling ability, but also enhance the durability of the ceramic rock slab, enabling it to maintain stable performance in harsh environments such as high temperature and friction, thereby reducing maintenance costs.

[0025] 3) The production process of the present invention is simple and easy to operate, and the raw materials used are all commercially available products. It can be directly connected to the existing ceramic production process without the need for additional complex equipment or process adjustments, and has high industrial application value. DETAILED DESCRIPTION

[0026] Main sources of substances: Curing agent, brand: SYLGARD® 184, Merck.

[0027] Ceramic dispersant, model: DURAMAX D-3019, brand: Dow, USA.

[0028] Zirconia ceramic sand, model: B20-B505, Dongguan Lianzhiyan Surface Treatment Materials Co., Ltd.

[0029] Calcined α-alumina powder, model: FR-YHLQ, Henan Fengkai Refractory Materials Co., Ltd.

[0030] Polydimethylsiloxane, model: PMX-200 1000CS, brand: Dow Corning, USA.

[0031] The remaining raw materials in the examples and comparative examples of the present invention are all commercially available products.

[0032] Example 1

[0033] The production process of a ceramic rock plate with decorative effect is as follows: Step 1, green body preparation: the green body layer raw materials are composed of the following mass percentages: wollastonite 39%, quartz sand 18%, potassium feldspar powder 10%, mica powder 6%, bauxite 6%, pyrophyllite 4%, sodium borate 2%, zirconia ceramic sand 5%, diopside 6%, high clay 3%, ceramic dispersant 0.5%, sodium silicate 0.5%; The raw materials and water are mixed in a mass ratio of 3:1, refined by a ball mill, and spray-dried to obtain the green body. The control parameters are: moisture 6%, particle size residue on a 325-mesh sieve ≤ 0.5%; Molding and drying: The blank is pressed and formed under 320bar hydraulic pressure and then dried for later use; Step 2: Glaze preparation (1) Preparation of base glaze: The base glaze raw materials are composed of the following mass percentages: 30% albite, 29% quartz, 15% nepheline syenite, 10% kaolin, 8% dolomite, and 8% anorthite; Processing technology, by weight: add 30 parts of water, 0.2 parts of sodium polyacrylate, and 0.3 parts of sodium tripolyphosphate to 100 parts of raw materials, ball mill for 6 hours until the fineness exceeds 0.7% on a 325 mesh sieve, and age for 48 hours; (2) Glaze preparation The glaze raw materials are composed of the following mass percentages: nepheline syenite 32%, spodumene 16%, wollastonite 15%, diopside 10%, apatite 4%, celsium feldspar 3%, quartz 8%, calcined α-alumina powder 4%, calcined zinc oxide 5.5%, and strontium carbonate 2.5%; Processing technology: same bottom glaze ball milling, screening and aging process; Step 3: Glazing and decoration Base glaze layer: applied to the surface of the body, specific gravity 1.92 g / m³, dosage 500 g / m²; Top glaze layer: covers the bottom glaze layer, with a specific gravity of 1.80 g / m³ and a dosage of 390 g / m²; Inkjet pattern: Digital inkjet printing is performed on the surface of the glaze layer to form a decorative texture; Step 4: Firing and post-processing High temperature firing: using step-by-step heating, 30℃ / min to 500℃, 20℃ / min to 850℃, 10℃ / min to 1100℃, firing at 1100℃ for 50 minutes to melt and combine the glaze layer and vitrify it. After firing, it is edge-grinded and polished, and then post-processed to obtain the ceramic rock plate.

[0034] The post-treatment method is as follows, in parts by weight: The polished rock slab is placed in a plasma equipment with a volume ratio of oxygen and nitrogen of 1:1, with a processing power of 300W and an air pressure of 50Pa, and the treatment is carried out for 15 minutes; 1.8 parts of aluminum sulfate 18hydrate and 12 parts of diammonium hydrogen phosphate are added to 100 parts of water and mixed evenly to obtain a treatment liquid, and the above-mentioned rock slab after plasma treatment is immersed in the treatment liquid, and treated at 200°C for 20 hours under closed conditions, and then taken out and dried at 100°C for 2 hours, and calcined at 560°C for 2 hours; 1.5 parts of perfluorodecyltriethoxysilane and 0.3 parts of curing agent are added to 90 parts of tetrahydrofuran and stirred evenly to obtain a coating liquid, and the above-mentioned calcined rock slab is immersed in the coating liquid for 15 minutes, and then taken out and cured at 110°C for 1 hour to obtain the ceramic rock slab.

[0035] Example 2

[0036] The production process of a ceramic rock slab with decorative effect is basically the same as that of Example 1, the only difference being the different post-processing method.

[0037] The post-treatment method is as follows, in parts by weight: The polished rock slab is placed in a plasma equipment with a volume ratio of oxygen and nitrogen of 1:1, with a processing power of 300W and an air pressure of 50Pa, and the treatment is carried out for 15 minutes; 1.8 parts of aluminum sulfate 18hydrate and 12 parts of triethanolamine are added to 100 parts of water and mixed evenly to obtain a treatment liquid, and the above-mentioned rock slab after plasma treatment is immersed in the treatment liquid, and treated at 200°C under closed conditions for 20 hours, and then taken out and dried at 100°C for 2 hours, and calcined at 560°C for 2 hours; 1.5 parts of perfluorodecyltriethoxysilane and 0.3 parts of curing agent are added to 90 parts of tetrahydrofuran and stirred evenly to obtain a coating liquid, and the above-mentioned calcined rock slab is immersed in the coating liquid for 15 minutes, and then taken out and cured at 110°C for 1 hour to obtain the ceramic rock slab.

[0038] Example 3

[0039] The production process of a ceramic rock slab with decorative effect is basically the same as that of Example 1, the only difference being the different post-processing method.

[0040] The post-treatment method is as follows, in parts by weight: The polished rock slab is placed in a plasma equipment with oxygen and nitrogen in a volume ratio of 1:1, with a processing power of 300W and an air pressure of 50Pa, and the treatment is carried out for 15 minutes; 1.8 parts of aluminum sulfate 18hydrate and 12 parts of hexamethylenetetramine are added to 100 parts of water and mixed evenly to obtain a treatment liquid, and the above-mentioned rock slab after plasma treatment is immersed in the treatment liquid, and treated at 200°C under closed conditions for 20 hours, taken out and dried at 100°C for 2 hours, and calcined at 560°C for 2 hours; 1.5 parts of perfluorodecyltriethoxysilane and 0.3 parts of curing agent are added to 90 parts of tetrahydrofuran and stirred evenly to obtain a coating liquid, and the above-mentioned calcined rock slab is immersed in the coating liquid for 15 minutes, and then taken out and cured at 110°C for 1 hour to obtain the ceramic rock slab.

[0041] Example 4

[0042] The production process of a ceramic rock slab with decorative effect is basically the same as that of Example 1, the only difference being the different post-processing method.

[0043] The post-treatment method is as follows, in parts by weight: The polished rock slab is placed in a plasma equipment with a volume ratio of oxygen and nitrogen of 1:1, with a processing power of 300W and an air pressure of 50Pa, and the treatment is carried out for 15 minutes; 1.8 parts of aluminum sulfate 18hydrate and 12 parts of diammonium hydrogen phosphate are added to 100 parts of water and mixed evenly to obtain a treatment liquid, and the above-mentioned rock slab after plasma treatment is immersed in the treatment liquid, and treated at 200°C for 20 hours under closed conditions, and then taken out and dried at 100°C for 2 hours, and calcined at 560°C for 2 hours; 1.5 parts of octamethylcyclotetrasiloxane and 0.3 parts of curing agent are added to 90 parts of tetrahydrofuran and stirred evenly to obtain a coating liquid, and the above-mentioned calcined rock slab is immersed in the coating liquid for 15 minutes, and then taken out and cured at 110°C for 1 hour to obtain the ceramic rock slab.

[0044] Example 5

[0045] The production process of a ceramic rock slab with decorative effect is basically the same as that of Example 1, the only difference being the different post-processing method.

[0046] The post-treatment method is as follows, in parts by weight: The polished rock slab is placed in a plasma equipment with a volume ratio of oxygen and nitrogen of 1:1, with a processing power of 300W and an air pressure of 50Pa, and the treatment is carried out for 15 minutes; 1.8 parts of aluminum sulfate 18hydrate and 12 parts of diammonium hydrogen phosphate are added to 100 parts of water and mixed evenly to obtain a treatment liquid, and the above-mentioned rock slab after plasma treatment is immersed in the treatment liquid, and treated at 200°C for 20 hours under closed conditions, and then taken out and dried at 100°C for 2 hours, and calcined at 560°C for 2 hours; 1.5 parts of methyltrimethoxysilane and 0.3 parts of curing agent are added to 90 parts of tetrahydrofuran and stirred evenly to obtain a coating liquid, and the above-mentioned calcined rock slab is immersed in the coating liquid for 15 minutes, and then taken out and cured at 110°C for 1 hour to obtain the ceramic rock slab.

[0047] Comparative Example 1 The production process of a ceramic rock slab with decorative effect is basically the same as that of Example 1, the only difference being the different post-processing method.

[0048] The post-treatment method is as follows, in parts by weight: The polished rock slab is placed in a plasma equipment with a volume ratio of oxygen and nitrogen of 1:1, with a processing power of 300W and an air pressure of 50Pa, and the treatment is carried out for 15 minutes; 1.8 parts of aluminum sulfate 18hydrate and 12 parts of urea are added to 100 parts of water and mixed evenly to obtain a treatment liquid, and the above-mentioned rock slab after plasma treatment is immersed in the treatment liquid, and treated at 200°C for 20 hours under closed conditions, and then taken out and dried at 100°C for 2 hours, and calcined at 560°C for 2 hours; 1.5 parts of perfluorodecyltriethoxysilane and 0.3 parts of curing agent are added to 90 parts of tetrahydrofuran and stirred evenly to obtain a coating liquid, and the above-mentioned calcined rock slab is immersed in the coating liquid for 15 minutes, and then taken out and cured at 110°C for 1 hour to obtain the ceramic rock slab.

[0049] Comparative Example 2 The production process of a ceramic rock slab with decorative effect is basically the same as that of Example 1, the only difference being the different post-processing method.

[0050] The post-treatment method is as follows, in parts by weight: The polished rock slab is placed in a plasma equipment with a volume ratio of oxygen and nitrogen of 1:1, with a processing power of 300W and an air pressure of 50Pa, and the treatment is carried out for 15 minutes; 1.8 parts of aluminum sulfate 18hydrate and 12 parts of diammonium hydrogen phosphate are added to 100 parts of water and mixed evenly to obtain a treatment liquid, and the above-mentioned rock slab after plasma treatment is immersed in the treatment liquid, and treated at 200°C for 20 hours under closed conditions, and then taken out and dried at 100°C for 2 hours, and calcined at 560°C for 2 hours; 1.5 parts of polydimethylsiloxane and 0.3 parts of curing agent are added to 90 parts of tetrahydrofuran and stirred evenly to obtain a coating liquid, and the above-mentioned calcined rock slab is immersed in the coating liquid for 15 minutes, and then taken out and cured at 110°C for 1 hour to obtain the ceramic rock slab.

[0051] Comparative Example 3 The production process of a ceramic rock slab with decorative effect is basically the same as that of Example 1, the only difference being that the post-processing method is not used.

[0052] Test Example 1 Antifouling: The anti-fouling performance was tested with reference to the national standard GB / T 3810.14-2016 "Test methods for ceramic tiles - Part 14: Determination of pollution resistance": the anti-fouling performance of the ceramic rock slabs prepared in the embodiments of the present invention and the comparative examples was tested. The testing principle is to bring the pollutant (chrome green, iodine tincture, olive oil, etc.) into contact with the front of the ceramic rock slab and allow it to act for a certain period of time, then clean the front of the ceramic rock slab according to the prescribed cleaning method, observe the surface changes to determine the pollution resistance of the brick, and the grades are divided into 1 to 5, with grade 5 having the best pollution resistance.

[0053] The test results are shown in Table 1.

[0054] Table 1

[0055] Test Example 2 Wear resistance: A reciprocating friction and wear tester was used to conduct wear tests on the ceramic rock plates prepared in the embodiments of the present invention and the comparative examples under the test conditions of a test load of 50 N, a stroke of 4 mm, a frequency of 2 Hz, and a duration of 40 min to measure the friction and wear performance, and the wear resistance was measured by the wear volume.

[0056] The test results are shown in Table 2.

[0057] Table 2

[0058] This invention constructs a stable antifouling interface layer through a multi-step synergistic process: first, oxygen-nitrogen plasma is used to activate the surface, forming active sites at the micro-nano level. Subsequently, aluminum salts and an ammonia source compound (preferably diammonium hydrogen phosphate) react under high-temperature hydrothermal conditions to form a needle-like micro-nano composite structure, significantly improving surface roughness. Finally, hydrophobic modification with a silane derivative (preferably perfluorodecyltriethoxysilane) forms a low-surface-energy coating on the rough surface, achieving a stable hydrophobic state on the ceramic slab. This hierarchical structure prevents contaminants from penetrating through the air film, thereby achieving long-lasting self-cleaning and antifouling properties.

[0059] Example 1 uses a combination of diammonium hydrogen phosphate as an ammonia source compound and perfluorodecyltriethoxysilane as a silane derivative, which produces the best effect in the post-processing process, significantly improving the anti-fouling and wear resistance of the ceramic rock plate. The pollution resistance reaches the highest performance level of 5, and the wear volume is minimized. This is due to the fact that diammonium hydrogen phosphate optimizes the chemical reaction of the surface treatment liquid to form a dense inorganic protective layer, while perfluorodecyltriethoxysilane provides excellent hydrophobicity and stain resistance, which together enhance the durability of the rock plate.

Claims

1. A ceramic rock plate with decorative effect, characterized in that: The ceramic rock plate comprises a three-layer structure from the inside to the outside, namely, a body layer, a bottom glaze layer, and a top glaze layer; the ceramic rock plate further comprises an inkjet pattern layer, which covers the surface of the top glaze layer. The ceramic rock plate is post-processed after firing; The post-processing method is as follows: The polished rock plate is first activated by oxygen-nitrogen plasma, then immersed in a treatment solution composed of aluminum sulfate 18hydrate and an ammonia source compound, and after a hydrothermal reaction, taken out, dried, and calcined; then immersed in a tetrahydrofuran coating solution containing a silane derivative and a curing agent, and cured to obtain the ceramic rock plate; The ammonia source compound is at least one of hexamethylenetetramine, diammonium hydrogen phosphate, and triethanolamine; The silane derivative is at least one of methyltrimethoxysilane, perfluorodecyltriethoxysilane, and octamethylcyclotetrasiloxane.

2. A process for producing a ceramic rock plate with decorative effect as claimed in claim 1, characterized in that: The process is as follows: Step 1, green body preparation: the green body layer raw materials are composed of the following mass percentages: wollastonite 35%-45%, quartz sand 15%-20%, potassium feldspar powder 5%-15%, mica powder 4%-8%, bauxite 4%-8%, pyrophyllite 2%-6%, sodium borate 1%-3%, zirconia ceramic sand 3%-7%, diopside 4%-8%, high clay 2%-4%, ceramic dispersant 0.3%-0.8%, and sodium silicate 0.3%-0.8%; The raw materials and water are mixed in a mass ratio of 2-4:1, refined by a ball mill, and spray-dried to obtain a green body material; Molding and drying: The blank is pressed and formed under 300-400 bar hydraulic pressure and then dried for later use; Step 2: Glaze preparation (1) Preparation of base glaze The raw materials are composed of the following mass percentages: albite 20%-40%, quartz 25%-35%, nepheline syenite 10%-20%, kaolin 5%-15%, dolomite 5%-10%, and anorthite 5%-10%; Processing technology, in parts by weight: 80-120 parts of raw materials, add 20-40 parts of water, 0.1-0.3 parts of sodium polyacrylate, 0.1-0.5 parts of sodium tripolyphosphate, ball mill, sieve, and age; (2) Glaze preparation The raw materials are composed of the following mass percentages: nepheline syenite 30%-35%, spodumene 12%-20%, wollastonite 10%-20%, diopside 5%-15%, apatite 2%-6%, celsium feldspar 1%-5%, quartz 5%-10%, calcined α-alumina powder 2%-6%, calcined zinc oxide 3%-8%, and strontium carbonate 1%-5%; Processing technology: same bottom glaze ball milling, screening and aging process; Step 3: Glazing and decoration Bottom glaze layer: applied to the surface of the body; Top glaze layer: covers the bottom glaze layer; Inkjet pattern: Digital inkjet printing is performed on the surface of the glaze layer to form a decorative texture; Step 4: Firing and post-processing High temperature firing: the glaze layer is melted, combined and vitrified, and after firing, it is subjected to edge grinding and polishing, and then post-processing to obtain the ceramic rock plate.

3. The production process of the ceramic rock plate with decorative effect as claimed in claim 2, characterized in that: In the green body preparation of step 1, the green body material obtained by spray drying has a moisture content of 6%-7% and a particle size of 0.3-0.8% or less after sieving through a 300-400 mesh sieve.

4. The production process of the ceramic rock plate with decorative effect as claimed in claim 2, characterized in that: In the preparation of the base glaze in step 2, the base glaze is ball-milled for 5-8 hours until the fineness is less than 0.5-1% on a 300-400 mesh sieve, and then aged for 24-72 hours.

5. The production process of the ceramic rock plate with decorative effect as claimed in claim 2, characterized in that: The base glaze layer in step 3 is applied to the surface of the green body with a specific gravity of 1.8-2.0 g / m³ and a dosage of 400-600 g / m².

6. The production process of the ceramic rock plate with decorative effect as claimed in claim 2, characterized in that: The top glaze layer in step 3 covers the bottom glaze layer, has a specific gravity of 1.6-2.0 g / m³, and a dosage of 350-450 g / m².

7. The production process of the ceramic rock plate with decorative effect as claimed in claim 2, characterized in that: The high temperature firing in the firing and post-treatment of step 4 is performed by stepwise heating: 20-40°C / min to 480-520°C, 15-25°C / min to 800-900°C, 5-15°C / min to 1000-1150°C, and firing at 1000-1150°C for 20-80 minutes.

8. The production process of the ceramic rock plate with decorative effect as claimed in claim 2, characterized in that: The post-treatment method is as follows, in parts by weight: The polished rock slab is placed in a plasma device with a volume ratio of oxygen and nitrogen of 0.5-2:1, with a processing power of 200-400W and an air pressure of 40-60Pa, and the treatment is carried out for 10-20 minutes; 1-2 parts of aluminum sulfate 18hydrate and 10-15 parts of an ammonia source compound are added to 80-120 parts of water and mixed evenly to obtain a treatment liquid, the above-mentioned rock slab after plasma treatment is immersed in the treatment liquid, and treated at 180-220°C under closed conditions for 10-30 hours, taken out and dried at 80-120°C for 1-3 hours, and calcined at 550-600°C for 1-3 hours; 1-2 parts of a silane derivative and 0.2-0.4 parts of a curing agent are added to 80-100 parts of tetrahydrofuran and stirred evenly to obtain a coating liquid, the above-mentioned calcined rock slab is immersed in the coating liquid for 10-20 minutes, and then taken out and cured at 100-120°C for 0.5-3 hours to obtain the ceramic rock slab.

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