CN112759258B - Antibacterial rock plate and preparation method thereof - Google Patents
Antibacterial rock plate and preparation method thereof Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/16—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silicates other than clay
- C04B35/18—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silicates other than clay rich in aluminium oxide
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- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
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- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
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- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
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- C04B41/89—Coating or impregnation for obtaining at least two superposed coatings having different compositions
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- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2204/00—Glasses, glazes or enamels with special properties
- C03C2204/02—Antibacterial glass, glaze or enamel
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Abstract
The invention discloses an antibacterial rock plate and a preparation method thereof. The antibacterial rock plate is provided with a rock plate blank at the bottom layer and matte dry-particle antibacterial glaze on the surface layer, wherein the matte dry-particle antibacterial glaze comprises: 12-15% of matte dry particles, 34-38% of low-viscosity roller printing oil, 12-15% of high-viscosity roller printing oil, 24-28% of antibacterial glaze powder and 10-14% of water by mass; the antibacterial glaze powder comprises the following raw materials: 38-43% of potash albite, 7-10% of kaolin, 3-6% of calcined kaolin, 8-12% of dolomite, 6-9% of wollastonite, 4-7% of zinc oxide, 6-10% of barium carbonate, 8-12% of calcined talc, 2-4% of silver-loaded zirconium phosphate antibacterial agent, 1-3% of bismuth oxide and 0.4-1% of cerium oxide by mass; the firing period of the antibacterial rock plate is 130-150 minutes, and the maximum firing temperature is 1190-1210 ℃.
Description
The application is a divisional application of invention patent applications with the application number of 202010637823.0, the application date of 2020, 7 and 6, and the invention name of "antibacterial glaze powder, antibacterial rock plate and preparation method thereof".
Technical Field
The invention relates to antibacterial glaze powder with an antibacterial function, a ceramic rock plate and a preparation method thereof, and belongs to the technical field of ceramic tile production and manufacturing.
Background
With the increasing requirements of consumers on living quality and living environment, personalized customization, health and environmental protection become key words of future home decoration materials. And the single decorative material is difficult to meet the consumption demand, and the material characterized by the color value and health becomes a great trend. The decorative materials have also evolved from traditional natural stone to ceramic tiles, artificial stone to today's rock boards. At present, the main application fields of the ceramic rock plates are kitchen countertops, dining tables, cabinet panels, wardrobes and the like, and the ceramic rock plates are in close contact with food, tableware, clothes and the like of people, so that the rock plate products with the antibacterial function are developed, the practical value is high, and the risk of infecting bacteria can be reduced.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide an antibacterial glaze powder, an antibacterial rock plate produced using the antibacterial glaze powder, and a method for producing the same.
In a first aspect, the present application provides an antibacterial glaze powder, wherein the chemical composition of the antibacterial glaze powder comprises: SiO 22：46.0～52.0％、Al2O3：18.0～22.0％、CaO：6.0～8.0％、K2O：3.0～5.0％、ZnO：5.5～10.0％、Na2O：2.0～3.0％、MgO：0.3～0.6％、BaO：5.0～7.0％、Bi2O3：1.0～2.0％、CeO2：0.2～0.5％、P2O5：0.6～1.5％、ZrO2: 0.4-1.3%, Ag: 0.1-0.3%, loss on ignition: 3.0 to 4.0 percent.
According to the invention, the antifouling grade of the glaze layer prepared by using the antibacterial glaze powder can reach 5 grades, the wear resistance can reach 6000 revolutions (4 grades), the antibacterial rate of escherichia coli is more than 90%, and the antibacterial rate of staphylococcus aureus is more than 90%.
Preferably, the chemical components of the antibacterial glaze powder also comprise La2O3、Nd2O3。
In a second aspect, the present application provides an antibacterial rock plate, wherein a surface glaze layer of the antibacterial rock plate is made of a dry antibacterial glaze material, and the dry antibacterial glaze material contains the above antibacterial glaze powder.
According to the invention, the antibacterial function of the rock plate is realized by using the antibacterial glaze powder, the antifouling grade of the antibacterial rock plate can reach 5 grades, the wear-resisting property can reach 6000 revolutions (4 grades), the antibacterial rate of escherichia coli is more than 90 percent, and the antibacterial rate of staphylococcus aureus is more than 90 percent.
Preferably, the dry-particle antibacterial glaze comprises: 12-15% of matte dry particles, 34-38% of low-viscosity roller printing oil, 12-15% of high-viscosity roller printing oil, 24-28% of antibacterial glaze powder and 10-14% of water, wherein the chemical components of the matte dry particles comprise SiO2：52.0～55.0％、Al2O3：18.0～20.0％、CaO：15.0～17.0％、K2O：2.0～2.5％、Na2O：2.5～3.5％、ZnO：4.0～5.0％、SrO：0.5～1.0％、MgO：0.3～0.6％、BaO：0.1～0.5％，ZrO2：0.1～0.5％。
Preferably, the particle fineness of the matte dry particles is as follows: 100-250 mesh ratio: 80-90%, and the ratio of 250-325 meshes is as follows: 10 to 20 percent.
Preferably, the blank formula of the antibacterial rock plate is as follows: the method comprises the following steps of selecting 6-9% of albite powder, 8-12% of terrazzo powder, 10-15% of high-strength washing mud, 1.5-3% of black talc, 6-10% of bauxite, 20-25% of potassium feldspar powder, 12-16% of washing ball clay, 13-18% of potassium aluminum sand and 6-9% of albite powder.
Preferably, the chemical composition of the body of the antibacterial rock plate comprises: SiO 22：60～65％、Al2O3：22～24％、Fe2O3：0.4～0.6％、TiO2：0.2～0.4％，CaO：0.3～0.5％、MgO：0.4～0.6％、K2O：2.5～3.5％、Na2O: 3-3.5% and loss on ignition 4.5-5.5%.
In a third aspect, the present application provides a method for preparing any one of the above-mentioned antibacterial rock plates, which is characterized by comprising the following steps: preparing materials according to a blank formula, carrying out ball milling, carrying out slurry color matching according to a design pattern, adjusting the color to be consistent with the design pattern by adjusting the adding amount of a pigment, and then spraying powder to prepare powder;
distributing the obtained powder, and then performing press molding to obtain a blank;
printing a pattern layer on the blank;
applying dry antibacterial glaze on the pattern layer;
and (5) firing.
Preferably, a swing type glaze cabinet is adopted to spray dry antibacterial glaze, the specific gravity of the glaze is 1.32-1.35, the flow rate is 20-25 seconds, and the glazing amount is as follows: 250 to 300g/m2。
Preferably, the sintering period is 130-150 minutes, and the maximum sintering temperature is 1190-1210 ℃.
Drawings
Fig. 1 shows a surface of an antibacterial rock plate according to an embodiment of the present invention.
Detailed Description
The present invention is further illustrated by the following examples, which are to be understood as merely illustrative and not restrictive. The following percentages are by mass unless otherwise specified.
The chemical composition of the antibacterial glaze powder of one embodiment of the invention comprises: by mass, SiO2：46.0～52.0％、Al2O3：18.0～22.0％、CaO：6.0～8.0％、K2O: 3.0-5.0%, ZnO: 5.5 to 10.0% (preferably 6.0 to 10.0%) of Na2O：2.0～3.0％、MgO：0.3～0.6％、BaO：5.0～7.0％、Bi2O3：1.0～2.0％、CeO2：0.2～0.5％、P2O5：0.6～1.5％、ZrO2: 0.4-1.3%, Ag: 0.1-0.3%, loss on ignition: 3.0 to 4.0 percent. Besides the above-mentioned oxide, trace rare earth element La can be existent in the antimicrobial glaze powder2O3、Nd2O3。
In some embodiments, the raw material formula of the antibacterial glaze powder can be as follows: 38-43% of potash-sodalite, 7-10% of kaolin, 3-6% of calcined kaolin, 8-12% of dolomite, 6-9% of wollastonite, 4-7% of zinc oxide, 6-10% of barium carbonate, 8-12% of calcined talc, 2-4% of silver-loaded zirconium phosphate antibacterial agent, 1-3% of bismuth oxide and 0.4-1% of cerium oxide.
The antibacterial glaze powder contains Ag, so that the antibacterial glaze powder can play an antibacterial role, and in addition, Bi exists in the glaze as a compound and is combined with trace rare earth elements in the glaze, so that the antibacterial performance of the product can be improved. Compared with nano silver, the silver-loaded zirconium phosphate antibacterial agent has the advantage that the silver-loaded zirconium phosphate antibacterial agent can be added into glaze and fired together with green bricks at high temperature.
The matte dry particle antibacterial glaze material comprises the following components in percentage by weight: 12-15% of matte dry particles, 34-38% of low-viscosity roller printing oil, 12-15% of high-viscosity roller printing oil, 24-28% of antibacterial glaze powder and 10-14% of water by mass.
The chemical components of the matte dry granules comprise: by mass, SiO2：52.0～55.0％、Al2O3：18.0～20.0％、CaO：15.0～17.0％、K2O：2.0～2.5％、Na2O：2.5～3.5％、ZnO：4.0～5.0％、SrO：0.5～1.0％、MgO：0.3～0.6％、BaO：0.1～0.5％，ZrO2: 0.1 to 0.5 percent. The raw material formula of the matte dry granules can be as follows: by mass, quartz: 12-18%, potassium feldspar: 12-15%, albite: 13-18%, zinc oxide: 2.5-4%, barium carbonate: 0.5-1.5%, strontium carbonate: 0.5-1.5%, zirconium silicate: 0.5-1%, calcite: 25-30%, talc: 0.5-2.0%, 15-20% of kaolin and 3-5% of corundum. The matte dry particles mainly use anorthite crystals and willemite crystals as substances for reducing the gloss of the dry particles, and in order to further reduce the gloss of the dry particles, reduce the content of alkali substances and simultaneously improve Al2O3The content of the glaze improves the initial melting point of the glaze, and reduces the phenomena of pinholes and cracking of a glaze layer.
The particle fineness of the matte dry particles may be: by mass, 100-250 meshes are as follows: 80-90%, and the ratio of 250-325 meshes is as follows: 10-20% and no fine powder below 325 meshes. The matte dry granules with the particle fineness can effectively reduce the phenomena of over-strong fluxing capacity caused by premature melting of the dry granules and over-high glossiness of a frit glaze surface of over-melted dry granules.
The low viscosity roll printing oil has a viscosity of 110.5 to 117.5 mPas.
The viscosity of the high-viscosity roller printing oil is 1928.0-2147.5 mPas.
The matte dry grain antibacterial glaze contains a certain content of low-viscosity roller printing oil and a certain content of high-viscosity roller printing oil, so that the suspension property of the glaze slip can be effectively adjusted, the phenomena of agglomeration and precipitation of the glaze slip in the using process are reduced, and the dispersion uniformity of the matte dry grains in the glaze slip is ensured.
For silver-based antibacterial, silver oxide is easily formed at a high temperature state, so that the antibacterial effect is lost, the content of univalent alkali metal in the matte dry-particle antibacterial glaze material is low, divalent alkaline earth metal is used as a solvent, the melting temperature of the glaze material is increased, the influence of molten liquid on the antibacterial agent in the firing process is reduced, and the antibacterial capability of silver ions is maximized.
The formula of the rock plate blank body in one embodiment of the invention is as follows: by mass, 6-9% of sodalite powder, 8-12% of terrazzo powder, 10-15% of high-strength washing mud, 1.5-3% of black talc, 6-10% of high-alumina bauxite, 20-25% of potassium feldspar powder, 12-16% of washing ball clay, 13-18% of potassium aluminum sand and 6-9% of sodalite powder are selected.
The chemical components of the formula comprise: by mass, SiO2：60～65％、Al2O3：22～24％、Fe2O3：0.4～0.6％、TiO2：0.2～0.4％，CaO：0.3～0.5％、MgO：0.4～0.6％、K2O：2.5～3.5％、Na2O: 3-3.5% and loss on ignition 4.5-5.5%.
The selected sodalite powder refers to sodalite powder with the sodium content of more than 8.5 percent.
The high-strength washing mud is prepared by washing raw slime to remove impurities such as branches and the like, and has the drying strength of more than 15Kg/cm2The clay of (2).
The "dawsonite" refers to an aluminum crystal having a reduced-temperature whiteness of 57 ° or more.
The rock plate prepared by the formula has excellent cutting performance, and Al is excellent compared with the traditional conventional formula2O3The content is basically about 20 percent, and the hair is treatedAl in Ming formula2O322-24% (basically about 23%) of high Al content2O3The method is beneficial to forming a large amount of mullite crystals on the blank, and the mullite crystals have the characteristics of uniform expansion and shrinkage in each direction, excellent thermal shock stability and high hardness, so that the internal stress uniformity of the blank is greatly improved, and the phenomenon of cracking caused by stress concentration in the later cold machining process is reduced.
The rock board according to one embodiment of the present invention includes a blank, a pattern decorative layer, and a surface antibacterial glaze layer. The following illustrates the preparation of the rock plate.
First, a green body is prepared. Proportioning according to the formula of the blank, ball-milling, carrying out slurry color matching according to the design pattern, and adjusting the color to be consistent with the design pattern by adjusting the adding amount of the pigment. Then powder is obtained by powder spraying. And (3) distributing the powder in a die cavity of a press, and forming by using the press to obtain a blank. The blank can be dried at 100-150 ℃.
Then, a pattern layer decoration is formed on the blank. The patterned layer decoration can be formed, for example, using a digital printer to jet ink.
Then, a matte dry-particle antibacterial glaze is applied. The glaze can be distributed by adopting a swinging glaze spraying cabinet to spray glaze. By adopting the method, the glaze surface has higher uniformity and flatness. Glazing parameters may include: glaze material proportion is 1.32-1.35, flow rate is 20-25 seconds (the flow rate is that a 100mL flow rate cup (volt cup) is filled with an object to be tested, a small hole below the flow rate cup is opened, and the time from the beginning to the end of the flow of the object to be tested is recorded as the flow rate of the object to be tested), glazing amount: 250 to 300g/m2. By adopting the glazing parameters, the glaze surface flatness can be ensured, the thickness of the glaze layer is reduced, the discharge of blank and cover glaze layer gas is facilitated, and the production cost is effectively reduced.
Then, the mixture is put into a roller kiln to be slowly fired. The sintering period can be 130-150 minutes, and the maximum sintering temperature can be 1190-1210 ℃. By adopting the firing process, the product has excellent cutting performance, the firing time is delayed, full reaction of various substances is facilitated, the existence of large pores is greatly reduced, small pores are wrapped, the internal stress diffusion of the green body in the cutting process can be effectively blocked by the existence of the small pores, and the brittleness probability of the green body caused by excessive stress concentration is reduced.
After sintering, the carbon fiber flexible brush module can be used for flexibly brushing the surface of the green brick, so that the hand feeling comfort degree of the surface of the rock plate is improved.
According to the embodiment, the matte dry-particle antibacterial glaze is applied to realize the functionalization of the rock plate surface layer glaze, the antifouling grade reaches 5 grades, the wear resistance reaches 6000 revolutions (4 grades), the antibacterial rate of escherichia coli is more than 93 percent, and the antibacterial rate of staphylococcus aureus is more than 91 percent.
The specification of the antibacterial rock plate of the invention can be as follows: 760X 2550X 13.5mm, 1200X 2400X 15.5mm, 1600X 3600X 15.5mm and the like.
The present invention will be described in detail by way of examples. It is also to be understood that the following examples are illustrative of the present invention and are not to be construed as limiting the scope of the invention, and that certain insubstantial modifications and adaptations of the invention by those skilled in the art may be made in light of the above teachings. The specific process parameters and the like of the following examples are also only one example of suitable ranges, i.e., those skilled in the art can select the appropriate ranges through the description herein, and are not limited to the specific values exemplified below.
Example 1
The method comprises the following steps: the formula of the blank body is as follows: 8.5% of selected albite powder, 11% of terrazzo powder, 12% of high-strength washing mud, 1.5% of black talc, 6% of bauxite, 25% of potassium feldspar powder, 12% of washing ball clay, 15% of potassium aluminum sand and 9% of albite powder. The chemical composition of the formula is as follows: SiO 22：64％、Al2O3：23％、Fe2O3：0.4％、TiO2：0.3％、CaO：0.3％、MgO：0.5％、K2O：3％、Na2O: 3.5 percent and 5 percent of loss on ignition. Proportioning according to a blank formula, ball-milling, carrying out slurry color matching according to a design pattern, adjusting the color to be consistent with the design pattern by adjusting the adding amount of a pigment, wherein the adding amount of an extra-black pigment is 2.5%, and then spraying powder for later use.
Step two: forming a blank body with the specification of 1600 multiplied by 3600 multiplied by 15.5mm by adopting a large-tonnage press HT36000 type press; drying the blank for 80min at 120 ℃.
Step three: and (3) spraying white ink and other color inks by using a digital printer to form pattern layer decoration.
Step four: spraying matte dry-grain antibacterial glaze by using a swing type glaze cabinet. The matte dry-particle antibacterial glaze comprises the following components: 15% of matte dry particles, 35% of low-viscosity roller printing oil, 14% of high-viscosity roller printing oil, 24% of antibacterial glaze powder and 12% of water. The matte dry particle comprises the following chemical components: SiO 22：53.5％、Al2O3：18.2％、CaO：16.7％、K2O：2.3％、Na2O：2.8％、ZnO：4.4％、SrO：0.8％、MgO：0.5％、BaO：0.4％、ZrO2: 0.4 percent. The particle fineness of the matte dry particles is 100-250 meshes: 85%, the ratio of 250 meshes to 325 meshes: 15% and no fine powder below 325 mesh. The low-viscosity roller printing oil is obtained from Star-Ma glaze Co., Ltd, of the Fushan City, and the model is MT-108, and the high-viscosity roller printing oil is obtained from famous ink glaze science Co., Ltd, of the Fushan City, and the model is MJ-9803. The formula of the antibacterial glaze powder comprises 41 percent of potash albite, 9 percent of kaolin, 5 percent of calcined kaolin, 10 percent of dolomite, 8 percent of wollastonite, 5 percent of zinc oxide, 8 percent of barium carbonate, 9 percent of calcined talc, 2.5 percent of zirconium phosphate silver-carrying antibacterial agent, 2 percent of bismuth oxide and 0.5 percent of cerium oxide. The silver-loaded zirconium phosphate antibacterial agent is purchased from Jinda nanometer technology (Xiamen) Co., Ltd, and has the model of JDGKP-010Y. The antibacterial glaze powder comprises the following chemical components: SiO 22：46.8％、Al2O3：18.7％、CaO：8.2％、K2O：3.1％、ZnO：6.4％、Na2O：2.2％、MgO：0.4％、BaO：6.5％、Bi2O3：1.6％、CeO2：0.2％、P2O5：1.3％，ZrO2: 1.2%, Ag: 0.2%, loss on ignition: 3.2 percent. The specific gravity of the matte dry-particle antibacterial glaze material is 1.33, the flow rate is 22s, and the glazing amount is as follows: 280g/m2。
Step five: the roller kiln is used for slow firing, the firing period is 150min, and the maximum firing temperature is 1195 ℃.
Step six: adopt the gentle brush module of carbon fiber to brush gentle the adobe surface, improve the comfort level of feeling on rock plate surface.
Step seven: and (5) edging and packaging in a grading manner.
Fig. 1 shows the surface of the resulting antibacterial rock plate.
The antifouling performance and the wear resistance of the product are tested according to the GB/T4100-2015 (appendix G) detection standard method, and the result shows that the antifouling grade is 5 and the wear resistance reaches 6000 revolutions (4).
The results of detection by a microbiological analysis and detection center in Guangdong province show that the antibacterial rate of escherichia coli is 98.45% and the antibacterial rate of staphylococcus aureus is 99.91%.
Example 2
The difference from example 1 is that the formulation of the green body is: 9% of selected albite powder, 11% of terrazzo powder, 13% of high-strength washing mud, 2% of black talc, 6% of high-white alundum, 25% of potassium feldspar powder, 12% of washing ball clay, 14% of potassium aluminum sand and 9% of albite powder. The chemical composition of the formula is as follows: SiO 22：65％、Al2O3：22.5％、Fe2O3：0.4％、TiO2：0.3％、CaO：0.3％、MgO：0.5％、K2O：3.5％、Na2O: 3% and loss on ignition 4.5%. Tests show that the obtained rock plate has the antifouling grade of 5 grade, the wear resistance of 6000 turns (4 grade), the antibacterial rate of escherichia coli of 95.38 percent and the antibacterial rate of staphylococcus aureus of 98.52 percent.
Example 3
The difference from example 1 is that the formulation of the antibacterial glaze powder is 43% of potash albite, 8% of kaolin, 5% of calcined kaolin, 10% of dolomite, 8% of wollastonite, 5% of zinc oxide, 8% of barium carbonate, 9% of calcined talc, 2.0% of zirconium phosphate silver-carrying antibacterial agent, 1.5% of bismuth oxide and 0.5% of cerium oxide. The antibacterial glaze powder comprises the following chemical components: SiO 22：47.8％、Al2O3：18.8％、CaO：8.4％、K2O：3.12％、ZnO：5.5％、Na2O：2.2％、MgO：0.4％、BaO：6.1％、Bi2O3：1.6％、CeO2：0.2％、P2O5：1.2％、ZrO2: 1.0%, Ag: 0.18%, loss on ignition: 3.6 percent.
Tests show that the antibacterial rate of escherichia coli is 93.56%, and the antibacterial rate of staphylococcus aureus is 92.74%.
Example 4
The difference from the example 1 is that the chemical composition of the matte dry particles is as follows: SiO 22：53.6％、Al2O3：18.3％、CaO：16.3％、K2O：2.3％、Na2O：3.2％、ZnO：4.2％、SrO：0.8％、MgO：0.5％、BaO：0.4％、ZrO2: 0.4 percent. Tests show that the antibacterial rate of Escherichia coli is 93.12%, and the antibacterial rate of Staphylococcus aureus is 91.59%.
Claims (9)
1. The utility model provides an antibiotic rock plate which characterized in that, possesses the rock plate body of bottom and the matte dry grain antibiotic glaze on top layer, the matte dry grain antibiotic glaze includes: 12-15% of matte dry particles, 34-38% of low-viscosity roller printing oil, 12-15% of high-viscosity roller printing oil, 24-28% of antibacterial glaze powder and 10-14% of water by mass;
the antibacterial glaze powder comprises the following raw materials: 38-43% of potash albite, 7-10% of kaolin, 3-6% of calcined kaolin, 8-12% of dolomite, 6-9% of wollastonite, 4-7% of zinc oxide, 6-10% of barium carbonate, 8-12% of calcined talc, 2-4% of silver-loaded zirconium phosphate antibacterial agent, 1-3% of bismuth oxide and 0.4-1% of cerium oxide by mass;
the matte dry granules comprise the following raw materials: by mass, quartz: 12-18%, potassium feldspar: 12-15%, albite: 13-18%, zinc oxide: 2.5-4%, barium carbonate: 0.5-1.5%, strontium carbonate: 0.5-1.5%, zirconium silicate: 0.5-1%, calcite: 25-30%, talc: 0.5-2.0%, 15-20% of kaolin and 3-5% of corundum;
the particle fineness of the matte dry particles is as follows: by mass, 100-250 meshes are as follows: 80-90%, and the ratio of 250-325 meshes is as follows: 10-20%; the firing period of the antibacterial rock plate is 130-150 minutes, and the maximum firing temperature is 1190-1210 ℃.
2. The antibacterial rock plate according to claim 1, wherein the chemical composition of the antibacterial glaze powder comprises: by mass, SiO2：46.0～52.0%、Al2O3：18.0～22.0%、CaO：6.0～8.4%、K2O：3.0～5.0%、ZnO：5.5～10.0%、Na2O：2.0～3.0%、MgO：0.3～0.6%、BaO：5.0～7.0%、Bi2O3：1.0～2.0%、CeO2：0.2～0.5%、P2O5：0.6～1.5%、ZrO2: 0.4-1.3%, Ag: 0.1-0.3%, loss on ignition: 3.0 to 4.0 percent.
3. The antibacterial rock plate of claim 2, wherein the chemical composition of the antibacterial glaze powder further comprises La2O3、Nd2O3。
4. The antimicrobial rock panel of claim 1, wherein the chemical composition of the matte dry pellets comprises: by mass, SiO2：52.0～55.0%、Al2O3：18.0～20.0%、CaO：15.0～17.0%、K2O：2.0～2.5%、Na2O：2.5～3.5%、ZnO：4.0～5.0%、SrO：0.5～1.0%、MgO：0.3～0.6%、BaO：0.1～0.5%，ZrO2：0.1～0.5%。
5. The antimicrobial rock panel of claim 1, wherein the blank formulation of the antimicrobial rock panel is: by mass, 6-9% of selected albite powder with sodium content of more than 8.5%, 8-12% of terrazzo powder, 10-15% of high-strength washing mud, 1.5-3% of black talc, 6-10% of albite with cooling whiteness of more than 57 degrees, 20-25% of potassium feldspar powder, 12-16% of washing ball clay, 13-18% of potassium aluminum sand and 6-9% of albite powder; wherein the high-strength water washing mud is prepared by washing raw slime to remove sundries such as branches and the like, and the drying strength is more than 15Kg/cm2The clay of (2).
6. The antibacterial rock plate of claim 1, wherein the formulation of the blank of the antibacterial rock plate is Al2O3The content is 22-24%.
7. The antibacterial rock plate of claim 1, wherein the antibacterial rock plate has a specification of: 760X 2550X 13.5mm, 1200X 2400X 15.5mm, 1600X 3600X 15.5 mm.
8. A method of producing an antibacterial rock panel according to any one of claims 1 to 7, characterized by comprising the steps of:
preparing materials according to the formula of the blank, carrying out ball milling, carrying out color matching on the slurry according to the design pattern, adjusting the color to be consistent with the design pattern by adjusting the adding amount of the pigment, and then spraying powder to obtain powder;
distributing the obtained powder, and then performing press molding to obtain a blank;
printing a pattern layer on the blank;
applying dry antibacterial glaze on the pattern layer;
and (5) firing.
9. The method for preparing an antibacterial rock plate according to claim 8, wherein the glazing parameters for applying the matte dry-grain antibacterial glaze comprise: glaze material proportion is 1.32-1.35, flow rate is 20-25 seconds, glazing amount: 250 to 300g/m2。
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