CN111393026A - Preparation method of enamel product with antibacterial property and enamel product with antibacterial property - Google Patents
Preparation method of enamel product with antibacterial property and enamel product with antibacterial property Download PDFInfo
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- CN111393026A CN111393026A CN202010114657.6A CN202010114657A CN111393026A CN 111393026 A CN111393026 A CN 111393026A CN 202010114657 A CN202010114657 A CN 202010114657A CN 111393026 A CN111393026 A CN 111393026A
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- C—CHEMISTRY; METALLURGY
- 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
- C03C8/00—Enamels; Glazes; Fusion seal compositions being frit compositions having non-frit additions
- C03C8/02—Frit compositions, i.e. in a powdered or comminuted form
- C03C8/06—Frit compositions, i.e. in a powdered or comminuted form containing halogen
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23D—ENAMELLING OF, OR APPLYING A VITREOUS LAYER TO, METALS
- C23D5/00—Coating with enamels or vitreous layers
- C23D5/02—Coating with enamels or vitreous layers by wet methods
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- C—CHEMISTRY; METALLURGY
- 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 a preparation method of an enamel product with antibacterial property and the enamel product with antibacterial property, wherein the preparation method comprises the following steps: mixing a basic glaze formula and zinc oxide powder according to a certain proportion, then obtaining a frit through high-temperature melting and water quenching, mixing and grinding the frit and an electrostatic wrapping agent to obtain electrostatic dry powder, mixing the electrostatic dry powder with water to prepare a glaze slurry meeting the requirement, coating the glaze slurry on the surface of a metal product and firing the metal product through an electrostatic dry process, or wet grinding the frit prepared from the basic glaze formula and the zinc oxide powder according to a certain proportion, preparing the ground powder and water into the glaze slurry meeting the requirement, coating the glaze slurry on the surface of the metal product and firing the metal product through a wet process, wherein compared with a common enamel product, the effect of resisting escherichia coli and staphylococcus aureus reaches more than 99.9%, the zinc oxide powder is easy to obtain and the manufacturing cost is low, so that the manufacturing cost of the enamel product with antibacterial property can be reduced.
Description
Technical Field
The invention relates to the technical field of manufacturing of enamel products, in particular to a preparation method of an antibacterial enamel glaze material for a metal surface and a metal product with an antibacterial enamel coating.
Background
Because of the characteristics of no toxicity, high temperature resistance and the like, enamel products are widely applied to products which are in direct contact with food, such as washbasins, cups, dishes, water heater liners, oven liners, barbecue oven bodies and the like at present; however, the conventional ceramic products have no antibacterial property, and microorganisms such as bacteria or molds are easily generated and propagated in kitchens and toilets, and easily pollute food and cause harm to human bodies after a long time.
In addition, at present, the enamel product can be provided with antibacterial property by adding an organic antibacterial agent or an inorganic antibacterial agent into the surface glaze of the enamel product; however, the organic antibacterial agent has poor chemical stability, higher requirements on use and storage conditions and short antibacterial effect, so the organic antibacterial agent is rarely applied to enamel products; the inorganic antibacterial agent is metal ions, wherein silver ions, zinc ions and copper ions are most commonly used, but the cost is higher, and the color rendering property of the inorganic antibacterial agent in enamel glaze is stronger, so that the color of a product is easily influenced; how to produce enamel products with low cost and good antibacterial performance is a subject to be researched at present.
Disclosure of Invention
In view of the defects of the prior art, the invention aims to provide a preparation method of an antibacterial enamel product with low manufacturing cost and better antibacterial effect, and the antibacterial enamel product.
The present invention achieves the above object by:
the invention provides a preparation method of an enamel product with antibacterial property, which comprises the following steps:
s1, weighing the basic glaze formula and the zinc oxide powder according to the proportion of the basic glaze formula and the zinc oxide powder, and uniformly mixing the basic glaze formula and the zinc oxide powder to obtain a mixture; s2, placing the mixture into a crucible, placing the crucible into a high-temperature electric furnace at 1250-1300 ℃ to melt the mixture, obtaining glaze clinker by water quenching after the mixture is melted to be wiredrawing endless, and performing water quenching on the glaze clinker to obtain the glaze clinkerDrying the frit of the glaze material; s3, grinding the glaze frit and the electrostatic wrapping agent together to obtain electrostatic dry powder, and uniformly mixing the electrostatic dry powder and a proper amount of water to obtain glaze slurry; s4, coating the glaze slip on the surface of a workpiece according to an electrostatic dry method, and then placing the workpiece in a high-temperature environment of 840 ℃ for firing; wherein the basic glaze formula is prepared from Na2O、 K2O、Li2o、CaO、BaO、MnO2、CoO、NiO、Na2SiF6、CaF2、B2O3、Al2O3、 SiO2、ZnO、ZrO2、TiO2The glaze is prepared by weighing and mixing, and the proportions of the raw materials of the basic glaze formula are as follows: 11.87-14.5 weight ratio, 0.4-5.15 weight ratio, 1.07-5.09 weight ratio, 0.8-2.14 weight ratio, 2.51-3.56 weight ratio, 0.5-1.52 weight ratio, 1.8-2.68 weight ratio, 1.5-3.61 weight ratio, 1.8-7.29 weight ratio, 1.21-2.29 weight ratio, 5.5-8.39 weight ratio, 2.1-5.11 weight ratio, 49.8-58.45 weight ratio, 2.87-5.72 weight ratio, 0.24-1.89 weight ratio, 1.89-5.14 weight ratio.
Further, the proportion ratio of the basic glaze formula to the zinc oxide powder is that the weight ratio of the zinc oxide powder to the basic glaze formula is 3: 100.
further, the fineness of the electrostatic dry powder is 90-110 um.
Further, the density of the glaze slip is not less than 1.65g/cm3。
The invention also provides another preparation method of the enamel product with antibacterial property, which comprises the following steps:
s1, putting the basic glaze which is prepared by uniformly mixing according to the basic glaze formula into a crucible, putting the crucible into a high-temperature electric furnace at 1250-1300 ℃ to melt the basic glaze, and obtaining a frit by water quenching after the basic glaze is melted to be wiredrawing endless; s2, according to the proportion of the frit to the zinc oxide powder, carrying out wet grinding on the frit and a proper amount of zinc oxide powder to obtain mixed powder, and mixing the mixed powder with a proper amount of water to obtain glaze slurry; s3, coating the glaze slip on the surface of a workpiece according to a wet process,placing the workpiece at 120 ℃ for drying, and then placing the workpiece in a high-temperature environment of 840 ℃ for firing; wherein, the basic glaze is made of Na2O、K2O、Li2o、CaO、 BaO、MnO2、CoO、NiO、Na2SiF6、CaF2、B2O3、Al2O3、SiO2、ZnO、ZrO2、 TiO2The glaze is prepared by weighing and mixing, and the proportions of the raw materials of the basic glaze formula are as follows: 11.87-14.5 weight ratio, 0.4-5.15 weight ratio, 1.07-5.09 weight ratio, 0.8-2.14 weight ratio, 2.51-3.56 weight ratio, 0.5-1.52 weight ratio, 1.8-2.68 weight ratio, 1.5-3.61 weight ratio, 1.8-7.29 weight ratio, 1.21-2.29 weight ratio, 5.5-8.39 weight ratio, 2.1-5.11 weight ratio, 49.8-58.45 weight ratio, 2.87-5.72 weight ratio, 0.24-1.89 weight ratio, 1.89-5.14 weight ratio.
Further, the ratio of the frit to the zinc oxide powder is that the weight of the zinc oxide powder is not less than 2% of the weight of the frit.
Further, the fineness of the mixed powder is 90-110 um.
Further, the density of the glaze slip is not less than 1.65g/cm3。
The invention also provides an enamel product with antibacterial property, and the antibacterial coating on the surface of the enamel product is prepared by adopting any one of the methods.
The invention has the beneficial effects that: by adopting the technical scheme provided by the invention, the frit prepared from the zinc oxide powder and the basic glaze formula and the glaze slurry prepared from the electrostatic wrapping agent are coated on the surface of the metal product, then the metal product is treated according to an electrostatic dry method, or the frit prepared from the basic glaze formula and the zinc oxide powder are coated on the surface of the metal product, and then the metal product is treated according to a wet process, so that the antibacterial coating is covered on the surface of the prepared metal product, and compared with a common enamel product, the antibacterial coating has the effects of resisting escherichia coli and staphylococcus aureus of more than 99.9 percent and has lower manufacturing cost.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not to be construed as limiting the present invention.
The method for preparing the enamel product with the antibacterial property, which is an embodiment of the invention, is a melting method, and specifically comprises the following steps:
and S1, weighing and uniformly mixing the basic glaze formula and the zinc oxide powder to obtain a mixture according to the proportion of the basic glaze formula and the zinc oxide powder.
Specifically, the components of the basic glaze formula and the weight ratio of each component are as shown in table 1 below, a basic glaze formula with a certain mass is prepared, and then, according to the prepared weight of the basic glaze formula, zinc oxide powder with a weight of 3% of the weight of the basic glaze formula is mixed into the basic glaze formula, that is, the weight ratio of the zinc oxide powder to the basic glaze formula is 3: 100, and uniformly mixing the two.
Table 1 basic glaze formulation
S2, placing the mixture into a crucible, placing the crucible into a high-temperature electric furnace at 1250-1300 ℃, obtaining glaze frit through water quenching after the mixture is melted to be wiredrawing nodes-free, and drying the glaze frit.
Further, the frit prepared in step S2 can also be directly used in a conventional wet enamel manufacturing process.
S3, grinding the glaze frit and the electrostatic wrapping agent together to obtain electrostatic dry powder, and uniformly mixing the electrostatic dry powder and a proper amount of water to obtain glaze slurry.
Specifically, the frit and electrostatic wrapping agent were as in table 2 belowProportionally placing the raw materials into a rapid ball mill, mixing the raw materials and the ground material by the rapid ball mill, grinding the mixture into electrostatic dry powder, taking out the electrostatic dry powder from the mill and uniformly mixing the electrostatic dry powder and a proper amount of water to obtain the glaze slurry when the particle fineness of the powder of the electrostatic dry powder reaches 90-110um, wherein the density of the glaze slurry is required to be not less than 1.65g/cm3(ii) a When the electrostatic dry powder is prepared by directly adopting the formula proportion shown in the following table 2, the electrostatic dry powder and 50g of water can be uniformly mixed to obtain the electrostatic dry powder with the density not less than 1.65g/cm3The glaze slip.
TABLE 2 Electrostatic Dry powder formulation
| Composition (I) | Fusion cake | Electrostatic coating agent |
| Weight/g | 100 | 5.20 |
S4, coating the glaze slip on the surface of a workpiece according to an electrostatic dry method, and then placing the workpiece in a high-temperature environment of 840 ℃ for firing.
The preparation method of the enamel product with antibacterial property, which is another embodiment of the invention, is a grinding addition method, and specifically comprises the following steps:
s1, putting the basic glaze which is prepared by uniformly mixing according to the basic glaze formula into a crucible, putting the crucible into a high-temperature electric furnace at 1250-1300 ℃ to melt the basic glaze, and obtaining the frit by water quenching after the basic glaze is melted to be wiredrawing-free.
Specifically, the basic glaze is made of Na2O、K2O、Li2o、CaO、BaO、MnO2、CoO、NiO、Na2SiF6、CaF2、B2O3、Al2O3、SiO2、ZnO、ZrO2、TiO2The glaze is prepared by weighing and mixing, and the proportions of the raw materials of the basic glaze are as follows: 11.87-14.5 weight ratio, 0.4-5.15 weight ratio, 1.07-5.09 weight ratio, 0.8-2.14 weight ratio, 2.51-3.56 weight ratio, 0.5-1.52 weight ratio, 1.8-2.68 weight ratio, 1.5-3.61 weight ratio, 1.8-7.29 weight ratio, 1.21-2.29 weight ratio, 5.5-8.39 weight ratio, 2.1-5.11 weight ratio, 49.8-58.45 weight ratio, 2.87-5.72 weight ratio, 0.24-1.89 weight ratio, 1.89-5.14 weight ratio.
S2, according to the proportion of the frit to the zinc oxide powder, carrying out wet grinding on the frit and a proper amount of zinc oxide powder to obtain mixed powder, and mixing the mixed powder with a proper amount of water to obtain the glaze slurry.
Specifically, zinc oxide powder which is not less than 2% of the weight of the frit and the frit are put into a rapid ball mill, according to the wet grinding process, a proper amount of Suzhou soil and sodium nitrite are put into the rapid ball mill according to the following table 3, the mixture powder is obtained by wet grinding together with the rapid ball mill, when the particle fineness of the mixture powder reaches 90-110um, the powder is milled and evenly mixed with a proper amount of water to obtain glaze slurry, and the density of the glaze slurry is required to be not less than 1.65g/cm3(ii) a When the wet grinding was performed directly using the formulation of Table 3 below, the powder obtained by grinding was uniformly mixed with 50g of water to obtain a powder having a density of not less than 1.65g/cm3The glaze slip.
TABLE 3 additive grinding recipe
| Composition (I) | Fusion cake | Suzhou soil | Sodium nitrite | Zinc oxide powder |
| Weight/g | 100 | 5 | 0.2 | 2 |
S3, coating the glaze slip on the surface of a workpiece according to a wet process, placing the workpiece at 120 ℃ for drying moisture, and then placing the workpiece at 840 ℃ for firing.
The antibacterial enamel product of one embodiment of the invention can be prepared by any one of the above mentioned melting and adding methods or grinding methods.
The specific test method is as follows:
1. fuse-addition method
According to the table 1, various raw materials mentioned in the table 1 are converted into the formula in the table 1, accurately weighed and uniformly mixed to obtain a basic glaze formula, zinc oxide powder is used as an antibacterial agent, 3% of the zinc oxide powder in weight of the formula is added into the formula and uniformly mixed, then the mixture is put into a crucible and put into a high-temperature electric furnace at 1250 ℃ to melt the mixture into a frit, and when the frit is in a drawable and stepless state, the frit is cooled by water quenching; taking out the frits from the cold quenching water, drying, putting the dried frits and the electrostatic wrapping agent into a rapid ball mill according to the proportion shown in the table 2, grinding to obtain electrostatic dry powder with the particle fineness of 100um, and mixing the electrostatic dry powder with a proper amount of water to obtain the electrostatic dry powder with the density of not less than 1.65g/cm3The glaze slip of (2); then evenly coating the glaze slip prepared by the above melting method on steel with the thickness of 50mm x 50mm in the same weight modeOn the plate, and the a steel plate was left to be fired in a high-temperature environment of 840 degrees for 4 minutes by an electrostatic dry method.
2. Grinding and adding method
Weighing and uniformly mixing the basic glaze formula shown in the table 1 to respectively prepare two parts of basic glaze, then putting one part of the basic glaze into a crucible and putting the crucible into a high-temperature electric furnace at 1250 ℃ to melt the mixture to prepare a frit, and cooling the frit by water quenching when the frit is in a drawable state and is not in a section state; taking out the clinker from cold quenching water, drying, proportioning the dried clinker, Suzhou soil, sodium nitrite and zinc oxide powder serving as an antibacterial agent according to the proportion in the table 3, putting the mixture into a rapid ball mill, carrying out wet grinding on the mixture by the rapid ball mill to obtain mixed powder with the particle fineness of 100um, and mixing the mixed powder with a proper amount of water to obtain a mixture with the density of not less than 1.65g/cm3The glaze slip of (2); then, the obtained glaze slip is uniformly coated on a steel plate with the thickness of 50mm x 50mm by the same weight as the glaze slip prepared by the above melting method to obtain a B steel plate, the B steel plate is placed at the temperature of 120 ℃ for drying, and then the workpiece is placed at the high temperature environment of 840 ℃ for firing for 4 minutes.
3. Conventional wet process
And (2) putting the other part of the basic glaze in the method 2 into a crucible, putting the crucible into a high-temperature electric furnace at 1250 ℃, melting the mixture into a frit, cooling the frit through water quenching when the frit is in a drawable state and is in an unsmooth state, grinding the frit into powder according to a conventional wet process, adding water into the powder to prepare a glaze slurry, uniformly coating the glaze slurry on a steel plate with the thickness of 50mm by the same weight as that of the glaze slurry prepared by the melting method to obtain a C steel plate, drying the C steel plate at 120 ℃, and then putting the workpiece into a high-temperature environment with the temperature of 840 ℃ for firing for 4 minutes.
Wiping the surfaces of the A, B and C steel plates prepared in the mode with 70% ethanol solution, washing with sterile distilled water after 5min, naturally drying, putting into a sterilized culture dish, respectively reducing the test bacterial liquid with strains prepared in advance to the surfaces of the 3 steel plates in equal amount, making a plurality of parallel samples for each sample, respectively covering the covering surfaces on the surfaces of the samples with sterilized tweezers, paving until no bubbles exist, ensuring that the bacterial liquid uniformly contacts the surfaces of the stone plates, covering the culture dish, and culturing for 24h under the conditions that the temperature is about 37 ℃ and the relative humidity is 90%.
Repeatedly eluting the sample and the covering film with quantitative eluent when the sample meets the requirement of contact culture time, shaking the eluent in a triangular flask to properly dilute and fix the volume, inoculating two culture dishes in parallel with each liquid, adding a liquid nutrient agar medium, and putting the culture dishes into a constant-temperature incubator at about 37 ℃ after the medium is solidified to repeat viable bacteria culture counting.
The results of the samples obtained in the above test manner and the antibacterial properties thereof are shown in the following table.
TABLE 4 results of antibacterial property of steel sheet of sample A
TABLE 5 results of antibacterial property of steel sheet of sample B
In order to study the influence of the addition amount of the zinc oxide powder on the antibacterial property, the addition amount of the zinc oxide powder was adjusted, the other operation procedures were the same, and the specific test conditions and antibacterial results are shown in the following table:
TABLE 6 influence of Zinc oxide powder on antibacterial Properties in the melting method
TABLE 7 influence of Zinc oxide powder on antibacterial Properties in grinding addition
From the test data, the zinc oxide with the concentration of 2% is introduced in the grinding and adding process to generate obvious antibacterial effect, and the maximum value can be reached when the addition amount reaches 2%; in the melting process, the antibacterial effect is general when 2% of zinc oxide is added, and the optimal antibacterial effect is achieved when the addition amount reaches 3%.
By adopting the technical scheme provided by the invention, the frit prepared from the zinc oxide powder and the basic glaze formula, the glaze slip prepared together with the electrostatic wrapping agent is coated on the surface of the metal product, then the metal product is treated according to the electrostatic dry method, or glaze slip prepared by mixing frit prepared by basic glaze formula and zinc oxide powder is coated on the surface of a metal product, then the metal product is treated according to the wet hair process, so that the surface of the prepared metal product is covered with an antibacterial coating, the effect of resisting escherichia coli and staphylococcus aureus can reach more than 99.9 percent compared with the common enamel product, moreover, the zinc oxide powder is easy to obtain, has lower manufacturing cost, lower toxicity and lower color rendering index, therefore, the manufacturing cost of the enamel product with antibacterial property can be reduced, and the color of the enamel product can not be influenced.
It is to be understood that the foregoing examples, while indicating the preferred embodiments of the invention, are given by way of illustration and description, and are not to be construed as limiting the scope of the invention; it should be noted that, for those skilled in the art, the above technical features can be freely combined, and several changes and modifications can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention; therefore, all equivalent changes and modifications made within the spirit and scope of the present invention should be covered by the appended claims.
Claims (10)
1. A preparation method of an enamel product with antibacterial property is characterized by comprising the following steps:
s1, weighing and uniformly mixing the basic glaze formula and the zinc oxide powder to obtain a mixture according to the proportion of the basic glaze formula and the zinc oxide powder, wherein the basic glaze formula is prepared from Na2O、K2O、Li2o、CaO、BaO、MnO2、CoO、NiO、Na2SiF6、CaF2、B2O3、Al2O3、SiO2、ZnO、ZrO2、TiO2The glaze is prepared by weighing and mixing, and the proportions of the raw materials in the basic glaze formula are respectively as follows: 11.87-14.5 weight ratio, 0.4-5.15 weight ratio, 1.07-5.09 weight ratio, 0.8-2.14 weight ratio, 2.51-3.56 weight ratio, 0.5-1.52 weight ratio, 1.8-2.68 weight ratio, 1.5-3.61 weight ratio, 1.8-7.29 weight ratio, 1.21-2.29 weight ratio, 5.5-8.39 weight ratio, 2.1-5.11 weight ratio, 49.8-58.45 weight ratio, 2.87-5.72 weight ratio, 0.24-1.89 weight ratio, 1.89-5.14 weight ratio;
s2, placing the mixture into a crucible, placing the crucible into a high-temperature electric furnace at 1250-1300 ℃ to melt the mixture, obtaining glaze frit through water quenching after the mixture is melted to be wiredrawing nodes-free, and drying the glaze frit;
s3, grinding the glaze frit and the electrostatic wrapping agent together to obtain electrostatic dry powder, and uniformly mixing the electrostatic dry powder and a proper amount of water to obtain glaze slurry;
s4, coating the glaze slip on the surface of a workpiece according to an electrostatic dry method, and then placing the workpiece in a high-temperature environment of 840 ℃ for firing.
2. The method for preparing the enamel product with the antibacterial property according to claim 1, wherein the method comprises the following steps: the base glaze material comprises a base glaze material formula and zinc oxide powder, wherein the ratio of the zinc oxide powder to the base glaze material formula is 3: 100.
3. the method for preparing the enamel product with the antibacterial property according to claim 2, characterized in that: the fineness of the electrostatic dry powder is 90-110 um.
4. The method for preparing the enamel product with antibacterial property according to claim 3, characterized in that: the density of the glaze slip is not less than 1.65g/cm3。
5. A preparation method of an enamel product with antibacterial property is characterized by comprising the following steps:
s1, putting the basic glaze which is prepared by uniformly mixing according to the basic glaze formula into a crucible, putting the crucible into a high-temperature electric furnace at 1250-1300 ℃ to melt the basic glaze, and obtaining the frit by water quenching after the basic glaze is melted to be wiredrawing-free, wherein the basic glaze is prepared by Na2O、K2O、Li2o、CaO、BaO、MnO2、CoO、NiO、Na2SiF6、CaF2、B2O3、Al2O3、SiO2、ZnO、ZrO2、TiO2The glaze is prepared by weighing and mixing, and the proportions of the raw materials of the basic glaze formula are as follows: 11.87-14.5 weight ratio, 0.4-5.15 weight ratio, 1.07-5.09 weight ratio, 0.8-2.14 weight ratio, 2.51-3.56 weight ratio, 0.5-1.52 weight ratio, 1.8-2.68 weight ratio, 1.5-3.61 weight ratio, 1.8-7.29 weight ratio, 1.21-2.29 weight ratio, 5.5-8.39 weight ratio, 2.1-5.11 weight ratio, 49.8-58.45 weight ratio, 2.87-5.72 weight ratio, 0.24-1.89 weight ratio, 1.89-5.14 weight ratio;
s2, according to the proportion of the frit to the zinc oxide powder, carrying out wet grinding on the frit and a proper amount of zinc oxide powder to obtain mixed powder, and mixing the mixed powder with a proper amount of water to obtain glaze slurry;
s3, coating the glaze slip on the surface of a workpiece according to a wet process, placing the workpiece at 120 ℃ for drying moisture, and then placing the workpiece at 840 ℃ for firing.
6. A method for preparing an enamel product with antibacterial property according to claim 5, characterized in that: the frit and the zinc oxide powder are mixed according to a proportion that the weight of the zinc oxide powder is not less than 2% of that of the frit.
7. The method for preparing the enamel product with the antibacterial property according to claim 6, wherein the method comprises the following steps: the fineness of the mixed powder is 90-110 um.
8. The method of claim 7, wherein the enamel product with antibacterial property is prepared by the following steps: the density of the glaze slip is not less than 1.65g/cm3。
9. An enamel product with antibacterial property is characterized in that: the enamel product is obtained by a method according to any of claims 1-4.
10. An enamel product with antibacterial property is characterized in that: the enamel product is obtained by a method according to any of claims 5-8.
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