Ultra-fine soft-light marble glaze, preparation method thereof, and marble tile

Abstract

The present invention relates to the field of marble glaze technology, and in particular to an ultra-fine and soft-gloss marble glaze, a preparation method thereof, and marble tiles. The present application discloses an ultra-fine and soft-gloss marble glaze, which comprises the following raw materials, in percentage by weight: calcium fluoride compound: 5-15%, basic glaze: 70-80%, fluxing glaze: 10-15%; the calcium fluoride compound, in parts by weight, comprises the following raw materials: 32-50 parts of calcium fluoride, 10-15 parts of potassium salt, 1-5 parts of vanadium trioxide, 10-20 parts of wollastonite, 2-5 parts of titanium dioxide, 1-6 parts of albite, 10-15 parts of magnesium hydroxide, 10-15 parts of corundum, and 0.1-0.6 parts of sodium tripolyphosphate. The marble glaze described in the present application, by adding calcium fluoride composite marble glaze to the existing glaze, makes the glaze surface layer have matte properties, anti-fouling properties, improves the high temperature resistance of the glaze, and also has a certain improvement effect on the anti-fouling performance.

Description

Technical Field

[0001] The invention relates to the technical field of marble glaze, in particular to an ultra-fine and soft-light marble glaze and a preparation method thereof, and marble tiles. Background Art

[0002] New era, new look. Ceramic tiles and marble tiles are indispensable decorative materials for a better home life. As people's aesthetic requirements continue to improve, tiles not only have decorative functions, but also allow people to enjoy a warm and quiet space feeling. Ceramic tiles are not just simple patterns. When people are in them, the demand for physical and mental health is imminent. Providing a healthy and hygienic living environment is the top priority at present.

[0003] Calcium fluoride crystallizes in the isometric system, forming cubes, octahedrons, or dodecahedrons. It occurs as colorless crystals or white powder. Natural ores contain impurities, giving it a slight green or purple tint. It glows when heated. Calcium fluoride is extremely insoluble in water, but soluble in hydrochloric acid, hydrofluoric acid, sulfuric acid, nitric acid, and ammonium salt solutions, and insoluble in acetone. Calcium fluoride forms complexes when dissolved in aluminum and iron salt solutions, reacting with hot concentrated sulfuric acid to generate hydrofluoric acid. It can form eutectics with various metal oxides.

[0004] Calcium fluoride is a safe, reliable, broad-spectrum negative matting agent, antifouling agent, high-temperature resistant, and stable performance agent that is easily used in many fields. However, calcium fluoride as a high-temperature matting agent for ceramics has not been reported. Therefore, how to add calcium fluoride as a raw material to the glaze layer and apply it to the surface of the green body after sintering to make marble tiles have ultra-fine and high-temperature resistance, low light refractive index, and good antifouling properties is a technical problem to be solved by the present invention.

[0005] To this end, the present application provides an ultra-fine soft-light marble glaze, a preparation method thereof, and marble tiles. Summary of the Invention

[0006] In order to overcome the shortcomings of the existing technology, the present invention provides an ultra-fine soft-light marble glaze, a preparation method thereof, and marble tiles. The marble glaze is made by adding calcium fluoride composite marble glaze to the existing glaze, so that the glaze layer has matte properties, anti-fouling properties, and improves the high-temperature resistance of the glaze, while also having a certain improvement effect on the anti-fouling performance.

[0007] The technical solution adopted by the present invention to solve its technical problem is:

[0008] The first object of the present application is to provide an ultra-fine soft-gloss marble glaze comprising the following raw materials, calculated by weight percentage:

[0009] Calcium fluoride complex: 5-15%;

[0010] Basic glaze: 70-80%;

[0011] Flux glaze: 10-15%;

[0012] The calcium fluoride composite comprises the following raw materials in parts by weight:

[0013] 32-50 parts of calcium fluoride, 10-15 parts of potassium salt, 1-5 parts of vanadium trioxide, 10-20 parts of wollastonite, 2-5 parts of titanium dioxide, 1-6 parts of albite, 10-15 parts of magnesium hydroxide, 10-15 parts of corundum, and 0.1-0.6 parts of sodium tripolyphosphate. In this application, the calcium fluoride composite, by combining calcium fluoride with various raw materials, can improve the stability of the calcium fluoride composite glaze slurry, increase the original melting point of the base glaze, and widen the firing range of the base glaze, which is beneficial for production. At the same time, the calcium fluoride composite has the functions of matting and fluxing, achieving better delicate and soft properties.

[0014] Furthermore, the basic glaze comprises the following raw materials in parts by weight:

[0015] 35-45 parts of potassium feldspar, 5-10 parts of wollastonite, 5-10 parts of quartz, 1-5 parts of corundum, 5-10 parts of strontium carbonate, 1-5 parts of spodumene, 2-6 parts of nepheline, 1-5 parts of dolomite, 1-5 parts of kaolin, and 5-10 parts of zinc oxide.

[0016] In this application, the base glaze is the main component of the glaze surface. It can form a uniform, smooth, and hard glaze layer on the surface of the ceramic body, giving the ceramic a good appearance and texture. The base glaze can improve the mechanical strength of the ceramic, making it more durable. The base glaze can also improve the chemical stability of the ceramic, making it more corrosion-resistant. The base glaze can also increase the thermal stability of the ceramic, making it more heat-resistant. The base glaze can also improve the optical properties of the ceramic, making it more transparent and lustrous.

[0017] Furthermore, the fluxing glaze comprises the following raw materials in parts by weight:

[0018] 30-50 parts of lithium feldspar, 5-10 parts of ball clay, 20-25 parts of barium carbonate, 1-5 parts of zinc oxide, 10-20 parts of potassium carbonate, 6-13 parts of lithium porcelain stoneware, 10-15 parts of talc, 0.1-0.25 parts of methyl cellulose, 0.2-0.45 parts of sodium tripolyphosphate, and 30-40 parts of water.

[0019] In this application, fluxing glaze can lower the melting point of the glaze, allowing it to melt at a lower temperature, thereby reducing the firing temperature and saving energy. Fluxing glaze can increase the fluidity of the glaze, allowing it to more evenly cover the surface of the body during firing, thereby improving the quality of the glaze surface. Fluxing glaze can also improve the gloss of the glaze, making the glaze surface softer and more delicate. Fluxing glaze can also improve the chemical stability of the glaze, making the glaze surface more corrosion-resistant.

[0020] Furthermore, the preparation method of the calcium fluoride composite comprises the following steps:

[0021] Calcium fluoride and vanadium trioxide are placed in a reaction kettle with water as solvent, titanium dioxide is added, and the reaction is carried out at 80-85°C for 1-2 hours. After the reaction is completed, the temperature is cooled to room temperature and passed through a 150-mesh sieve; dried, and the corresponding potassium salt, sodium feldspar, magnesium hydroxide, and corundum are added according to weight parts and mixed evenly to obtain a solid powder of a calcium fluoride complex.

[0022] The second object of the present application is to provide a method for preparing an ultra-fine soft marble glaze, comprising the following steps:

[0023] S1. Preparation of calcium fluoride complex

[0024] S2. Preparation and ball milling of mixed glaze

[0025] Prepare materials according to the weight percentages of the basic glaze, the calcium fluoride compound, and the fluxing glaze; add the calcium fluoride compound, the fluxing glaze, and an appropriate amount of water to the basic glaze to obtain a mixed glaze; and ball-mill the mixed glaze;

[0026] S3. Glazing

[0027] The glaze produced by ball milling in step S2 is glazed on the surface of the green body, and the mixed glaze is printed on the surface of the green body.

[0028] Furthermore, in step S2, the ball milling process is: using 800-1000g high-aluminum ball mill, performing mixed ball milling for 20-30 minutes.

[0029] Furthermore, in step S3, glazing is applied on the surface of the green body. The process is as follows: the mesh number of the screen is 60-80 mesh, the glazing specific gravity is 1.50-1.70, each brick is printed three times, and the glazing amount of each printing is 180-210g / m 2 ; The vibrating screen fineness standard for protecting the glaze layer is 60 mesh, and the sieve residue is 10-15g.

[0030] The third purpose of this application is to provide an ultra-fine soft-light ceramic tile, including the above-mentioned ultra-fine soft-light marble glaze or the ultra-fine soft-light marble glaze prepared by the above-mentioned preparation method.

[0031] Furthermore, the method for preparing the ultra-fine soft light ceramic tile further includes the following steps:

[0032] S4. Sintering

[0033] The green body after glazing is sintered to obtain a semi-finished product;

[0034] S5. Gloss setting

[0035] The semi-finished products are tested with a photometer to ensure that the brightness of the tiles is controlled at 8-10° after leaving the kiln.

[0036] Furthermore, in step S4, the sintering temperature is 1180-1210°C.

[0037] Compared with the prior art, the present invention has the following beneficial effects:

[0038] 1. The marble glaze described in this application has an ultra-fine and soft function based on the following principle: a base glaze and a calcium fluoride complex react to form a fine new glaze layer, which is then fluxed by a fluxing glaze (potassium carbonate and strontium carbonate) to form a new potassium-strontium bond compound. The zinc oxide in the base glaze and the lithium porcelain stone in the fluxing glaze then fuse and react to form a larger layer of ultra-fine particles, which are adsorbed on the surface of the tile body to form a refractory protective film.

[0039] 2. The marble glaze described in this application adds calcium fluoride composite marble glaze to the existing glaze, so that the glaze layer has matte properties, anti-fouling properties, and improves the high temperature resistance of the glaze, while also having a certain improvement effect on the anti-fouling performance.

[0040] 3. The marble tiles prepared in this application have a light refractive index of 0.5-1.0, high temperature resistance up to 1150°C, anti-fouling grade AA, wear resistance up to 2100 revolutions level 4, acid and alkali resistance up to A, which expands the application range of marble tiles. In addition, the preparation method is simple, the process is easy to operate, and it has broad market prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The present invention will be further described below with reference to the accompanying drawings and examples.

[0042] Figure 1 This is a process flow chart of the preparation method of the ultra-fine soft marble glaze described in this application. DETAILED DESCRIPTION

[0043] In order to facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the embodiments. The contents mentioned in the embodiments are not intended to limit the present invention.

[0044] As used herein, the term "and / or" includes all combinations of any one or more of the associated listed items. The terms used herein are only used to describe specific embodiments and are not intended to limit the present invention. As used herein, the singular forms "a", "an", "an" and "the" are also intended to include the plural forms, unless the context clearly indicates otherwise. It is further understood that "including", when used in this specification, specifies the stated features, integers, steps, operations, elements and / or components, but does not preclude the existence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0045] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It is further understood that terms, such as those defined in commonly used dictionaries, are interpreted in accordance with their meanings in the context of the relevant art and are not idealized or overly formalized unless expressly defined otherwise herein.

[0046] The exemplary inventions described herein may suitably lack any one or more element limitations not specifically disclosed herein. Therefore, terms such as "comprises," "includes," "contains," and the like should be understood broadly and non-restrictively. In addition, the terminology used herein is used as a description, not a limitation, and it is unintentional to use these terminology expressions that do not include any equivalent characteristics, but only describe a portion of their characteristics, but various modifications are possible within the scope of the invention according to the rights. Therefore, although the present invention has been specifically disclosed through preferred embodiments and optional features, the modifications disclosed herein to embody the changes of the invention may be recorded by those skilled in the art, and such modifications and changes will be considered to be within the scope of the invention.

[0047] The raw materials or reagents used in the embodiments of the present invention and the comparative examples are all purchased from market mainstream manufacturers. The manufacturer or concentration is not specified. They are all analytically pure raw materials or reagents that can be routinely obtained. As long as the desired effect can be achieved, there are no particular restrictions. The reactor and rotary evaporator and other instruments used in the present embodiment are all purchased from market major manufacturers. As long as the desired effect can be achieved, there are no particular restrictions. In the present embodiment, if specific techniques or conditions are not specified, the technology or conditions described in the literature in this area or the product specifications are used.

[0048] Example 1

[0049] An ultra-fine soft-gloss marble glaze, comprising the following raw materials by weight percentage:

[0050] Calcium fluoride complex: 5%;

[0051] Basic glaze: 80%;

[0052] Marble slurry: 15%.

[0053] The calcium fluoride composite comprises the following raw materials in parts by weight:

[0054] 32 parts of calcium fluoride, 10 parts of potassium salt, 1 part of vanadium trioxide, 10 parts of wollastonite, 2 parts of titanium dioxide, 1 part of albite, 10 parts of magnesium hydroxide, 10 parts of corundum, and 0.1 part of sodium tripolyphosphate.

[0055] The basic glaze comprises the following raw materials in parts by weight:

[0056] 35 parts of potassium feldspar, 5 parts of wollastonite, 5 parts of quartz, 1 part of corundum, 5 parts of strontium carbonate, 1 part of spodumene, 2 parts of nepheline, 1 part of dolomite, 1 part of kaolin, and 5 parts of zinc oxide.

[0057] The fluxing glaze is prepared by mixing the following raw materials in parts by weight and then ball milling:

[0058] 30 parts of lithium feldspar, 5 parts of ball clay, 20 parts of barium carbonate, 1 part of zinc oxide, 10 parts of potassium carbonate, 6 parts of lithium porcelain stoneware, 10 parts of talc, 0.1 parts of methylcellulose, 0.2 parts of sodium tripolyphosphate, and 30 parts of water.

[0059] A method for preparing ultra-fine soft-light marble tiles comprises the following steps:

[0060] S1. Preparation of calcium fluoride complex

[0061] Calcium fluoride and vanadium trioxide are placed in a reaction kettle with water as a solvent and titanium dioxide as a colorant, and reacted at 80°C for 2 hours. After the reaction, the temperature is cooled to room temperature and passed through a 150-mesh sieve. After drying, the corresponding potassium salt, sodium feldspar, magnesium hydroxide, and corundum are added according to weight parts and mixed evenly to obtain a solid powder of calcium fluoride complex.

[0062] S2. Preparation and ball milling of mixed glaze

[0063] Prepare materials according to the weight percentages of the basic glaze, the calcium fluoride compound, and the fluxing glaze; add the calcium fluoride compound, the fluxing glaze, and an appropriate amount of water to the basic glaze to obtain a mixed glaze; and ball-mill the mixed glaze;

[0064] S3. Glazing

[0065] The glaze obtained by ball milling in step S2 is directly glazed on the surface of the green body by printing the mixed glaze on the surface of the green body by screen printing;

[0066] S4. Sintering

[0067] The glazed body was sintered in a kiln at a temperature of 1180°C for 55 minutes to obtain a semi-finished product.

[0068] S5. Gloss setting

[0069] The semi-finished products are tested with a photometer to ensure that the photometry of the tiles is controlled at 8-10 degrees after leaving the kiln;

[0070] In step S2, the ball milling process is: using 800-1000g of high-aluminum ball mill (320g of ball mill with a diameter of 5-8mm, 380g of ball mill with a diameter of 10-12mm, and 200g of ball mill with a diameter of 15-18mm) to perform mixed ball milling for 20 minutes.

[0071] In step S3, the mesh number of the screen is 60-80 mesh, the glaze density is 1.50-1.70, each brick is printed three times, and the glaze amount of each printing is 180-210g / m 2 The vibrating screen fineness standard for protecting the glaze layer is 60 mesh, and the sieve residue is 10-15g;

[0072] Example 2

[0073] An ultra-fine soft-gloss marble glaze, comprising the following raw materials by weight percentage:

[0074] Calcium fluoride complex: 15%;

[0075] Basic glaze: 70%;

[0076] Marble slurry: 15%.

[0077] The calcium fluoride composite comprises the following raw materials in parts by weight:

[0078] 50 parts of calcium fluoride, 15 parts of potassium salt, 5 parts of vanadium trioxide, 20 parts of wollastonite, 5 parts of titanium dioxide, 6 parts of albite, 15 parts of magnesium hydroxide, 15 parts of corundum, and 0.6 parts of sodium tripolyphosphate.

[0079] The basic glaze comprises the following raw materials in parts by weight:

[0080] 45 parts of potassium feldspar, 10 parts of wollastonite, 10 parts of quartz, 5 parts of corundum, 10 parts of strontium carbonate, 5 parts of spodumene, 6 parts of nepheline, 5 parts of dolomite, 5 parts of kaolin, and 10 parts of zinc oxide.

[0081] The fluxing glaze is prepared by mixing the following raw materials in parts by weight and then ball milling:

[0082] 50 parts of lithium feldspar, 10 parts of ball clay, 25 parts of barium carbonate, 5 parts of zinc oxide, 20 parts of potassium carbonate, 13 parts of lithium porcelain stoneware, 15 parts of talc, 0.25 parts of methylcellulose, 0.45 parts of sodium tripolyphosphate, and 40 parts of water.

[0083] A method for preparing ultra-fine soft-light marble tiles comprises the following steps:

[0084] S1. Preparation of calcium fluoride complex

[0085] Calcium fluoride and vanadium trioxide are placed in a reaction kettle with water as a solvent and titanium dioxide as a colorant, and reacted at 85°C for 1 hour. After the reaction, the temperature is cooled to room temperature and passed through a 150-mesh sieve. After drying, the corresponding potassium salt, sodium feldspar, magnesium hydroxide, and corundum are added according to weight parts and mixed evenly to obtain a solid powder of calcium fluoride complex.

[0086] S2. Preparation and ball milling of mixed glaze

[0087] Prepare materials according to the weight percentages of the basic glaze, the calcium fluoride compound, and the fluxing glaze; add the calcium fluoride compound, the fluxing glaze, and an appropriate amount of water to the basic glaze to obtain a mixed glaze; and ball-mill the mixed glaze;

[0088] S3. Glazing

[0089] The glaze obtained by ball milling in step S2 is directly glazed on the surface of the green body by printing the mixed glaze on the surface of the green body by screen printing;

[0090] S4. Sintering

[0091] The glazed body was sintered in a kiln at a temperature of 1210°C for 55 minutes to obtain a semi-finished product.

[0092] S5. Gloss setting

[0093] The semi-finished products are tested with a photometer to ensure that the photometry of the tiles is controlled at 8-10 degrees after leaving the kiln;

[0094] In step S2, the ball milling process is: using 800-1000g of high-aluminum ball mill (320g of ball mill with a diameter of 5-8mm, 380g of ball mill with a diameter of 10-12mm, and 200g of ball mill with a diameter of 15-18mm) to perform mixed ball milling for 20-30min.

[0095] In step S3, the mesh number of the screen is 60-80 mesh, the glaze density is 1.50-1.70, each brick is printed three times, and the glaze amount of each printing is 180-210g / m 2; The vibrating screen fineness standard for protecting the glaze layer is 60 mesh, and the sieve residue is 10-15g.

[0096] Example 3

[0097] An ultra-fine soft-gloss marble glaze, comprising the following raw materials by weight percentage:

[0098] Calcium fluoride complex: 10%;

[0099] Basic glaze: 80%;

[0100] Flux glaze: 10%.

[0101] The calcium fluoride composite comprises the following raw materials, in parts by weight: 40 parts of calcium fluoride, 14 parts of potassium salt, 4 parts of vanadium trioxide, 14 parts of wollastonite, 4 parts of titanium dioxide, 5 parts of sodium feldspar, 10 parts of magnesium hydroxide, 10 parts of aluminum oxide, and 0.6 parts of sodium tripolyphosphate.

[0102] The basic glaze comprises the following raw materials, in parts by weight: 42 parts of potassium feldspar, 10 parts of wollastonite, 10 parts of quartz, 3 parts of corundum, 8 parts of strontium carbonate, 5 parts of dolomite, 6 parts of nepheline, 10 parts of zinc oxide, and 9 parts of kaolin.

[0103] The fluxing glaze is prepared by mixing and then ball-milling the following raw materials, in parts by weight: 44 parts of lithium feldspar, 9 parts of ball clay, 25 parts of barium carbonate, 1 part of zinc oxide, 10 parts of potassium carbonate, 6 parts of lithium porcelain stone, 15 parts of talc, 0.1 parts of methyl cellulose, 0.45 parts of sodium tripolyphosphate, and 40 parts of water.

[0104] A method for preparing ultra-fine soft-light marble tiles comprises the following steps:

[0105] S1. Preparation of calcium fluoride complex

[0106] Calcium fluoride and vanadium trioxide were placed in a reaction kettle with water as solvent and titanium dioxide as colorant, and the mixture was reacted at 83°C for 1.5 hours. After the reaction, the mixture was cooled to room temperature and passed through a 150-mesh sieve. After drying, the corresponding potassium salt, sodium feldspar, magnesium hydroxide, and corundum were added according to weight parts and mixed evenly to obtain a solid powder of calcium fluoride complex.

[0107] S2. Preparation and ball milling of mixed glaze

[0108] Prepare materials according to the weight percentages of the basic glaze, the calcium fluoride compound, and the fluxing glaze; add the calcium fluoride compound, the fluxing glaze, and an appropriate amount of water to the basic glaze to obtain a mixed glaze; and ball-mill the mixed glaze;

[0109] S3. Glazing

[0110] The glaze obtained by ball milling in step S2 is directly glazed on the surface of the green body by printing the mixed glaze on the surface of the green body by screen printing;

[0111] S4. Sintering

[0112] The glazed body was sintered in a kiln at a temperature of 1200°C for 57 minutes to obtain a semi-finished product.

[0113] S5. Gloss setting

[0114] The semi-finished products are tested with a photometer to ensure that the photometry of the tiles is controlled at 8-10 degrees after leaving the kiln;

[0115] In step S2, the ball milling process is: using 800-1000g of high-aluminum ball mill (320g of ball mill with a diameter of 5-8mm, 380g of ball mill with a diameter of 10-12mm, and 200g of ball mill with a diameter of 15-18mm) to perform mixed ball milling for 25 minutes.

[0116] Wherein, in step S2, the mesh number of the screen is 60-80 mesh, the glaze density is 1.50-1.70, each brick is printed three times, and the glaze amount of each printing is 180-210g / m 2 The vibrating screen fineness standard for protecting the glaze layer is 60 mesh, and the sieve residue is 10-15g;

[0117] Example 4

[0118] An ultra-fine soft-gloss marble glaze, comprising the following raw materials by weight percentage:

[0119] Calcium fluoride complex: 8%;

[0120] Basic glaze: 78%;

[0121] Marble slurry: 14%.

[0122] The calcium fluoride composite comprises the following raw materials in parts by weight:

[0123] 42 parts of calcium fluoride, 12 parts of potassium salt, 4 parts of vanadium trioxide, 16 parts of wollastonite, 2 parts of titanium dioxide, 2 parts of albite, 11 parts of magnesium hydroxide, 11 parts of corundum, and 0.6 parts of sodium tripolyphosphate.

[0124] The basic glaze comprises the following raw materials in parts by weight:

[0125] 43 parts of potassium feldspar, 9 parts of wollastonite, 6 parts of quartz, 3 parts of corundum, 10 parts of strontium carbonate, 5 parts of dolomite, 4 parts of nepheline, 5 parts of wollastonite, 5 parts of zinc oxide, and 10 parts of kaolin.

[0126] The fluxing glaze is prepared by mixing the following raw materials in parts by weight and then ball milling:

[0127] 35 parts of lithium feldspar, 10 parts of ball clay, 20 parts of barium carbonate, 5 parts of zinc oxide, 14 parts of potassium carbonate, 6 parts of lithium porcelain stoneware, 10 parts of talc, 0.1 parts of methyl cellulose and 0.45 parts of sodium tripolyphosphate, 40 parts of water.

[0128] A method for preparing ultra-fine soft-light marble tiles comprises the following steps:

[0129] S1. Preparation of calcium fluoride complex

[0130] Calcium fluoride and vanadium trioxide were placed in a reaction kettle with water as solvent and titanium dioxide as colorant, and the mixture was reacted at 80°C for 1.5 hours. After the reaction, the mixture was cooled to room temperature and passed through a 150-mesh sieve. After drying, the corresponding potassium salt, sodium feldspar, magnesium hydroxide, and corundum were added according to weight parts and mixed evenly to obtain a solid powder of calcium fluoride complex.

[0131] S2. Preparation and ball milling of mixed glaze

[0132] Prepare materials according to the weight percentages of the basic glaze, the calcium fluoride compound, and the fluxing glaze; add the calcium fluoride compound, the fluxing glaze, and an appropriate amount of water to the basic glaze to obtain a mixed glaze; and ball-mill the mixed glaze;

[0133] S3. Glazing

[0134] The glaze obtained by ball milling in step S2 is directly glazed on the surface of the green body by printing the mixed glaze on the surface of the green body by screen printing;

[0135] S4. Sintering

[0136] The glazed body was sintered in a kiln at a temperature of 1180°C for 55 minutes to obtain a semi-finished product.

[0137] S5. Gloss setting

[0138] The semi-finished products are tested with a photometer to ensure that the photometry of the tiles is controlled at 8-10 degrees after leaving the kiln;

[0139] In step S2, the ball milling process is: using 800-1000g of high-aluminum ball mill (320g of ball mill with a diameter of 5-8mm, 380g of ball mill with a diameter of 10-12mm, and 200g of ball mill with a diameter of 15-18mm) to perform mixed ball milling for 22 minutes.

[0140] In step S3, the mesh number of the screen is 60-80 mesh, the glaze density is 1.50-1.70, each brick is printed three times, and the glaze amount of each printing is 180-210g / m 2 The vibrating screen fineness standard for protecting the glaze layer is 60 mesh, and the sieve residue is 10-15g;

[0141] Comparative Example 1

[0142] No calcium fluoride complex was added, and the other conditions were the same as in Example 1;

[0143] Comparative Example 2

[0144] Calcium fluoride complex does not contain vanadium trioxide, potassium salt, wollastonite,

[0145] Magnesium hydroxide and corundum (i.e., the raw materials of the calcium fluoride complex do not include: vanadium trioxide, potassium salt, wollastonite, magnesium hydroxide, and corundum), and the other conditions are the same as those in Example 1;

[0146] The performance of the tiles prepared in Examples 1-4 and Comparative Examples 1-2 was tested, and the results are shown in Table 1:

[0147] Among them, the acid and alkali resistance test, acid resistance is to soak in 18% mass concentration of hydrochloric acid for 12 hours, and alkali resistance is to soak in 18% mass concentration of sodium hydroxide solution for 20 hours;

[0148] Glossiness, tested by photometer;

[0149] The touch test is to test the surface of the tile by touching it with a coin. The ratings are divided into: super fine, very fine, fine, and rough;

[0150] The anti-fouling grade test is carried out by using an oily test pen and then wiping with clean water to determine the degree of ink absorption.

[0151] Table 1

[0152]

[0153] From Table 1, it can be seen that the tiles prepared in this application have a wear resistance of level 4 (2100 revolutions), acid and alkali resistance of level A, a super-fine touch test, a glossiness of 9-10, and an anti-fouling grade of AA, showing a delicate and soft light performance.

[0154] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present invention is within the scope of protection of the present invention.

Claims

1. An ultra-fine soft marble glaze, characterized by: Calculated by weight percentage, it includes the following raw materials: Calcium fluoride complex: 5-15% Base glaze: 70-80% Flux glaze: 10-15%; The calcium fluoride composite comprises the following raw materials in parts by weight: 32-50 parts of calcium fluoride, 10-15 parts of potassium salt, 1-5 parts of vanadium trioxide, 10-20 parts of wollastonite, 2-5 parts of titanium dioxide, 1-6 parts of albite, 10-15 parts of magnesium hydroxide, 10-15 parts of corundum, and 0.1-0.6 parts of sodium tripolyphosphate.

2. The ultra-fine soft marble glaze according to claim 1, characterized in that: The basic glaze comprises the following raw materials in parts by weight: 35-45 parts of potassium feldspar, 5-10 parts of wollastonite, 5-10 parts of quartz, 1-5 parts of corundum, 5-10 parts of strontium carbonate, 1-5 parts of spodumene, 2-6 parts of nepheline, 1-5 parts of dolomite, 1-5 parts of kaolin, and 5-10 parts of zinc oxide.

3. The ultra-fine soft marble glaze according to claim 1, characterized in that: The fluxing glaze comprises the following raw materials in parts by weight: 30-50 parts of lithium feldspar, 5-10 parts of ball clay, 20-25 parts of barium carbonate, 1-5 parts of zinc oxide, 10-20 parts of potassium carbonate, 6-13 parts of lithium porcelain stoneware, 10-15 parts of talc, 0.1-0.25 parts of methyl cellulose, 0.2-0.45 parts of sodium tripolyphosphate, and 30-40 parts of water.

4. The ultra-fine soft marble glaze according to claim 1, characterized in that: The preparation method of the calcium fluoride composite comprises the following steps: Calcium fluoride and vanadium trioxide are added to a reaction kettle, titanium dioxide is added using water as a solvent, and the reaction is carried out at 80-85°C for 1-2 hours. After the reaction is completed, the temperature is cooled to room temperature and passed through a 150-mesh sieve; dried, and corresponding potassium salts, sodium feldspar, magnesium hydroxide, and corundum are added according to weight parts, and the mixture is evenly mixed to obtain a solid powder of a calcium fluoride complex.

5. The method for preparing an ultra-fine soft marble glaze according to any one of claims 1 to 4, characterized in that: The following steps are involved: S1. Preparation of calcium fluoride complex S2. Preparation and ball milling of mixed glaze Prepare materials according to the weight percentages of the basic glaze, the calcium fluoride compound, and the fluxing glaze; add the calcium fluoride compound, the fluxing glaze, and an appropriate amount of water to the basic glaze to obtain a mixed glaze; and ball-mill the mixed glaze; S3. Glazing The glaze produced by ball milling in step S2 is glazed on the surface of the green body, and the mixed glaze is printed on the surface of the green body.

6. The preparation method according to claim 5, characterized in that In step S2, the ball milling process is: using 800-1000g high-aluminum ball mill, performing mixed ball milling for 20-30 minutes.

7. The preparation method according to claim 5, characterized in that In step S3, glaze is applied on the surface of the green body. The process is as follows: the mesh number of the screen is 60-80 mesh, the glaze density is 1.50-1.70, each brick is printed three times, and the glaze amount of each printing is 180-210g / m 2 .

8. An ultra-fine soft light tile, characterized by: The invention comprises the ultra-fine and soft-light marble glaze according to any one of claims 1 to 4 or the ultra-fine and soft-light marble glaze prepared by the preparation method according to any one of claims 5 to 7.

9. The ultra-fine soft light ceramic tile according to claim 8, characterized in that: The method for preparing the ultra-fine soft light ceramic tile further comprises the following steps: S4. Sintering The green body after glazing is sintered to obtain a semi-finished product; S5. Gloss setting The semi-finished products are tested with a photometer to ensure that the brightness of the tiles is controlled at 8-10° after leaving the kiln.

10. The ultra-fine soft light ceramic tile according to claim 9, characterized in that: In step S4, the sintering temperature is 1180-1210°C.

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