Antibacterial frits, methods of making and using the same

Abstract

The present application relates to the technical field of ceramic frit, and particularly relates to antibacterial frit, a preparation method and application thereof, the antibacterial frit comprises an antibacterial compound and a frit base material, the antibacterial compound is composed of nano cerium oxide and nano zinc oxide, and the frit base material comprises the following chemical components in percentage by mass: SiO2 44-55%, Al2O3 18-20%, K2O+Na2O=5-7%, ZnO+BaO+SrO=2.5-24%, CaO+MgO=5-10.5%, and K2O / Na2O=2-5, CaO / MgO=1.2-4; the mass ratio between the antibacterial compound and the frit base material is 0.08-0.15:1. The antibacterial frit can effectively avoid problems such as loss, local enrichment or vacancy of antibacterial components in glaze slurry, and the antibacterial effect of the prepared antibacterial ceramic product is more efficient, stable and persistent.

Description

Technical Field

[0001] This invention relates to the field of ceramic frit technology, and in particular to an antibacterial frit, its preparation method, and its application. Background Technology

[0002] In existing technologies, inorganic antibacterial products are usually added directly to ceramic glaze raw materials during use, and then uniformly made into glaze slurry for direct glazing. However, due to their extremely fine particle size (usually nano-sized particles), inorganic antibacterial products are water-soluble to varying degrees. During the glazing process, they can easily penetrate into the body, causing a reduction in the effective antibacterial components on the glaze surface. At the same time, there are problems such as the enrichment or absence of effective antibacterial components on the glaze surface, resulting in weakened and unstable antibacterial effects, or even loss of antibacterial effect. Summary of the Invention

[0003] The purpose of this invention is to provide an antibacterial frit, its preparation method and application, in view of the existing technology. This antibacterial frit can effectively avoid problems such as loss, local enrichment or vacancies of antibacterial components in the glaze slurry, and the antibacterial effect of the resulting antibacterial ceramic products is more efficient, stable and long-lasting.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] On one hand, the present invention provides an antibacterial frit, comprising an antibacterial complex and a frit base material. The antibacterial complex is composed of nano-cerium oxide and nano-zinc oxide. The chemical composition of the frit base material by mass percentage includes: SiO2 44-55%, Al2O3 18-20%, K2O+Na2O=5-7%, ZnO+BaO+SrO=2.5-24%, CaO+MgO=5-10.5%, and K2O / Na2O=2-5, CaO / MgO=1.2-4.

[0006] The mass ratio between the antibacterial complex and the fused aggregate is 0.08 to 0.15:1.

[0007] In some preferred embodiments, the mass ratio of the nano-cerium oxide to the nano-zinc oxide is 1:(3-5).

[0008] In some preferred embodiments, the ZnO content is 0–5%, the BaO content is 1–11%, and the SrO content is 1.5–8% based on the total mass of the frit base material.

[0009] In some preferred embodiments, the ZnO content is 1–3%, the BaO content is 6–11%, and the SrO content is 1.5–6% based on the total mass of the frit base material.

[0010] In some preferred embodiments, the CaO content is 3-8% and the MgO content is 2-2.5% based on the total mass of the frit base material.

[0011] On the other hand, the present invention provides a method for preparing the above-mentioned antibacterial frit, comprising:

[0012] Weigh out each raw material according to the proportion, mix them thoroughly, melt them, and then quench them in water, dry them, and pulverize them into a powdered finished product.

[0013] In some preferred embodiments, the melting temperature is 1550–1600°C.

[0014] Furthermore, the present invention also provides the application of the above-mentioned antibacterial frit in antibacterial ceramic products, the application including:

[0015] The antibacterial frit is added to the ceramic glaze to form a glaze slurry, which is then applied to the surface of the ceramic body and sintered.

[0016] In some preferred embodiments, the amount of antibacterial frit added is 10% to 12% of the total mass of the ceramic glaze.

[0017] The beneficial effects of this invention are as follows:

[0018] In this invention, on the one hand, by incorporating nano-scale antibacterial composites into the frit base material to form antibacterial frit, the antibacterial composites can be uniformly dispersed in the antibacterial frit. The resulting antibacterial frit can be stably and uniformly dispersed in the glaze slurry, resulting in a more efficient, stable, and long-lasting antibacterial effect on the glaze surface of the antibacterial ceramic products. On the other hand, this invention uses an antibacterial composite composed of nano-cerium oxide and nano-zinc oxide, which synergistically inhibits bacteria through multiple mechanisms, thereby effectively improving the broad-spectrum, long-lasting, and efficient antibacterial effect of the antibacterial ceramic products. At the same time, the antibacterial frit uses a variety of raw materials in combination and controls the ratio between the raw materials, so that the antibacterial frit has a wider firing range and higher transparency, and is conducive to color development. Adding it to the ceramic glaze will not affect the normal use of the ceramic glaze, resulting in better adaptability and a wider range of applications and versatility. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be described in further detail below.

[0020] On one hand, the present invention discloses an antibacterial frit, comprising an antibacterial complex and a frit base material. The antibacterial complex is composed of nano-cerium oxide and nano-zinc oxide. The chemical composition of the frit base material by mass percentage includes: SiO2 44-55%, Al2O3 18-20%, K2O+Na2O=5-7%, ZnO+BaO+SrO=2.5-24%, CaO+MgO=5-10.5%, and K2O / Na2O=2-5, CaO / MgO=1.2-4;

[0021] The mass ratio between the antibacterial compound and the fused aggregate is 0.08 to 0.15:1.

[0022] In this invention, a nano-sized antibacterial complex is mixed into the frit base material to form an antibacterial frit. The antibacterial complex can be uniformly dispersed in the antibacterial frit. The antibacterial frit is not easily soluble in water after being crushed. When added to ceramic glaze to form a glaze slurry, the antibacterial frit can be stably and uniformly dispersed in the glaze slurry, avoiding the seepage of antibacterial components into the ceramic body and thus preventing the loss of antibacterial components in the glaze slurry. At the same time, it avoids the phenomenon of local enrichment or void of antibacterial components in the glaze slurry. The resulting antibacterial ceramic products have a more efficient, stable and long-lasting antibacterial effect on the glaze surface.

[0023] The antibacterial mechanism of this invention is as follows:

[0024] 1) Active oxygen antibacterial: Metal ions in the glaze of antibacterial ceramic products react with water in the air to produce active H2O2, achieving a bactericidal effect;

[0025] 2) Photocatalytic reaction: Under light conditions, the superoxide radicals generated on the glaze of antibacterial ceramic products react with organic matter in microorganisms and oxidize them into CO2 and H2O, thereby achieving the effects of antibacterial, anti-mildew and killing microorganisms;

[0026] 3) Metal ion leaching: The released metal ions react with the (SH-) sulfhydryl groups on the bacterial proteases, causing the proteases to lose their activity and killing the bacteria;

[0027] This invention utilizes an antibacterial complex composed of nano-cerium oxide and nano-zinc oxide, which synergistically enhances the antibacterial effect of the prepared antibacterial ceramic products through multiple mechanisms, thereby effectively improving the broad-spectrum, long-lasting, and efficient antibacterial effect.

[0028] On the other hand, since the antibacterial compound of the present invention is prepared by first making an antibacterial frit and then adding it to the ceramic glaze for use, the antibacterial frit needs to ensure a wide firing range and high transparency so as not to affect the normal use of the ceramic glaze. In the present invention, ZnO, BaO, SrO, CaO and MgO are added to the frit base material, with ZnO+BaO+SrO=2.5-24%, CaO+MgO=5-10.5%, and K2O / Na2O=2-5, which effectively broadens the firing range. Combined with the use of a large proportion of SiO2 and Al2O 3. The CaO / MgO ratio is 1.2-4, which makes the antibacterial frit exhibit high transparency. At the same time, the combination of ZnO and BaO is beneficial for color development. A larger proportion of Al2O3 can also reduce defects and facilitate the formation of a smooth, high-strength glaze. It also works with BaO to improve the wear resistance of the glaze. However, the content of Al2O3 and ZnO+BaO+SrO should not be too high, otherwise it will easily cause devitrification. The mass ratio between the antibacterial complex and the frit base material is 0.08-0.15:1. The antibacterial complex can be well dispersed in the frit base material to achieve a better antibacterial effect.

[0029] In this invention, on the one hand, by incorporating nano-scale antibacterial composites into the frit base material to form antibacterial frit, the antibacterial composites can be uniformly dispersed in the antibacterial frit. The resulting antibacterial frit can be stably and uniformly dispersed in the glaze slurry, resulting in a more efficient, stable, and long-lasting antibacterial effect on the glaze surface of the antibacterial ceramic products. On the other hand, this invention uses an antibacterial composite composed of nano-cerium oxide and nano-zinc oxide, which synergistically inhibits bacteria through multiple mechanisms, thereby effectively improving the broad-spectrum, long-lasting, and efficient antibacterial effect of the antibacterial ceramic products. At the same time, the antibacterial frit uses a variety of raw materials in combination and controls the ratio between the raw materials, so that the antibacterial frit has a wider firing range and higher transparency, and is conducive to color development. Adding it to the ceramic glaze will not affect the normal use of the ceramic glaze, resulting in better adaptability and a wider range of applications and versatility.

[0030] The mass ratio between nano-cerium oxide and nano-zinc oxide is 1:(3-5). For example, the mass ratio between nano-cerium oxide and nano-zinc oxide is 1:3, 1:4 or 1:5, but it is not limited to these. Within this range, the antibacterial effect is better.

[0031] Of these, based on the total mass of the frit base material, ZnO is 0–5%, BaO is 1–11%, and SrO is 1.5–8%.

[0032] Among them, based on the total mass of the frit base material, ZnO is 1-3%, BaO is 6-11%, and SrO is 1.5-6%. By using a higher proportion of BaO and a lower proportion of ZnO and SrO, the antibacterial frit has better overall performance in terms of firing range and color development, and the gloss is not too high or too low, thus avoiding the impact of excessively high or low gloss on the glaze gloss.

[0033] Of these, based on the total mass of the frit base material, CaO is 3-8% and MgO is 2-2.5%. CaO combined with MgO can play a fluxing role at high temperatures, broaden the firing range, and promote melting. However, excessive MgO content can easily cause devitrification.

[0034] On the other hand, the present invention discloses a method for preparing the above-mentioned antibacterial frit, comprising:

[0035] Weigh out each raw material according to the proportion, mix them thoroughly, melt them, and then quench them in water, dry them, and pulverize them into a powdered finished product.

[0036] The melting temperature is 1550 to 1600°C. For example, the melting temperature is 1550°C, 1580°C or 1600°C, but is not limited to these. Preferably, the melting temperature is 1580 to 1600°C.

[0037] The mixing time is 2 hours to ensure that the raw materials are fully mixed and that the antibacterial complex is evenly dispersed in the fused aggregate.

[0038] Furthermore, this invention also discloses the application of the aforementioned antibacterial frit in antibacterial ceramic products, the application including:

[0039] Antibacterial frit is added to ceramic glaze to form a glaze slurry, which is then applied to the surface of the ceramic body and sintered. The ceramic glaze can be a conventional product or a commercially available product. After adding the antibacterial frit to the ceramic glaze, the ceramic glaze mixed with the antibacterial frit is then processed according to conventional slurry preparation, glazing, and sintering procedures. The antibacterial frit is simple to use and highly versatile. It can be stably and evenly dispersed in the glaze slurry, preventing the antibacterial components from seeping into the ceramic body and causing loss of antibacterial components in the glaze slurry. It also avoids local enrichment or voids of antibacterial components in the glaze slurry, resulting in a more efficient, stable, and long-lasting antibacterial effect on the glaze surface of the antibacterial ceramic products.

[0040] The amount of antibacterial frit added is 10% to 12% of the total mass of the ceramic glaze.

[0041] The present invention will be further described below with reference to embodiments:

[0042] Example 1

[0043] An antibacterial frit, comprising an antibacterial complex and a frit base material, wherein the antibacterial complex is composed of nano-cerium oxide and nano-zinc oxide, and the frit base material comprises, by mass percentage: 50% SiO2, 20% Al2O3, 5% K2O+Na2O, 20% ZnO+BaO+SrO, 5% CaO+MgO, and K2O / Na2O = 4, CaO / MgO = 1.5;

[0044] The mass ratio between the antibacterial compound and the fused aggregate is 0.1:1.

[0045] Of which, based on the total mass of the frit base material, K₂O accounts for 4%, Na₂O 1%, ZnO 3%, BaO 11%, SrO 6%, CaO 3%, and MgO 2%.

[0046] The mass ratio of nano-cerium oxide to nano-zinc oxide is 1:5.

[0047] The above-mentioned method for preparing antibacterial frit includes:

[0048] Weigh out each raw material according to the proportion, mix them thoroughly, melt them, then quench them in water, dry them, and pulverize them into a powdered finished product. The mixing time is 2 hours and the melting temperature is 1600℃.

[0049] The above-mentioned antibacterial frit is used in antibacterial ceramic products, including:

[0050] Antibacterial frit is added to ceramic glaze to form a glaze slurry, which is then applied to the surface of the ceramic body and sintered at a temperature of 1200℃. The ceramic glaze is a commercially available product.

[0051] Example 2

[0052] An antibacterial frit, comprising an antibacterial complex and a frit base material, wherein the antibacterial complex is composed of nano-cerium oxide and nano-zinc oxide, and the frit base material comprises, by mass percentage: 55% SiO2, 18% Al2O3, 6% K2O+Na2O, 11% ZnO+BaO+SrO, 10% CaO+MgO, and K2O / Na2O = 5, CaO / MgO = 3.2;

[0053] The mass ratio between the antibacterial compound and the fused aggregate is 0.1:1.

[0054] Of which, based on the total mass of the frit base material, K₂O accounts for 5%, Na₂O 1%, ZnO 5%, BaO 4%, SrO 2%, CaO 8%, and MgO 2.5%.

[0055] The mass ratio of nano-cerium oxide to nano-zinc oxide is 1:5.

[0056] The above-mentioned method for preparing antibacterial frit includes:

[0057] Weigh out each raw material according to the proportion, mix them thoroughly, melt them, then quench them in water, dry them, and pulverize them into a powdered finished product. The mixing time is 2 hours and the melting temperature is 1600℃.

[0058] The above-mentioned antibacterial frit is used in antibacterial ceramic products, including:

[0059] Antibacterial frit is added to ceramic glaze to form a glaze slurry, which is then applied to the surface of the ceramic body and sintered at a temperature of 1200℃. The ceramic glaze is a commercially available product.

[0060] Example 3

[0061] An antibacterial frit, comprising an antibacterial complex and a frit base material, wherein the antibacterial complex is composed of nano-cerium oxide and nano-zinc oxide, and the frit base material comprises, by mass percentage: 50% SiO2, 20% Al2O3, 5% K2O+Na2O, 20% ZnO+BaO+SrO, 5% CaO+MgO, and K2O / Na2O = 4, CaO / MgO = 1.5;

[0062] The mass ratio between the antibacterial compound and the fused aggregate is 0.1:1.

[0063] Of which, based on the total mass of the frit base material, K₂O accounts for 4%, Na₂O 1%, ZnO 3%, BaO 11%, SrO 6%, CaO 3%, and MgO 2%.

[0064] The mass ratio of nano-cerium oxide to nano-zinc oxide is 1:3.

[0065] The above-mentioned method for preparing antibacterial frit includes:

[0066] Weigh out each raw material according to the proportion, mix them thoroughly, melt them, then quench them in water, dry them, and pulverize them into a powdered finished product. The mixing time is 2 hours and the melting temperature is 1600℃.

[0067] The above-mentioned antibacterial frit is used in antibacterial ceramic products, including:

[0068] Antibacterial frit is added to ceramic glaze to form a glaze slurry, which is then applied to the surface of the ceramic body and sintered at a temperature of 1200℃. The ceramic glaze is a commercially available product.

[0069] Example 4

[0070] The difference between this embodiment and Embodiment 1 lies in the application of the antibacterial frit in antibacterial ceramic products, including:

[0071] Antibacterial frit is added to ceramic glaze to form a glaze slurry, which is then applied to the surface of the ceramic body and sintered at a temperature of 1170℃. The ceramic glaze is a commercially available product.

[0072] Comparative Example 1

[0073] An antibacterial frit, comprising an antibacterial complex and a frit base material, wherein the antibacterial complex is composed of nano-cerium oxide and nano-zinc oxide, and the frit base material comprises, by mass percentage: 50% SiO2, 25% Al2O3, 5% K2O+Na2O, 5% ZnO+BaO+SrO, 15% CaO+MgO, and K2O / Na2O = 4, CaO / MgO = 1.5;

[0074] The mass ratio between the antibacterial compound and the fused aggregate is 0.1:1.

[0075] Of which, based on the total mass of the frit base material, K₂O accounts for 4%, Na₂O 1%, ZnO 3%, BaO 3%, SrO 4%, CaO 9%, and MgO 6%.

[0076] The mass ratio of nano-cerium oxide to nano-zinc oxide is 1:5.

[0077] The above-mentioned method for preparing antibacterial frit includes:

[0078] Weigh out each raw material according to the proportion, mix them thoroughly, melt them, then quench them in water, dry them, and pulverize them into a powdered finished product. The mixing time is 2 hours and the melting temperature is 1600℃.

[0079] The above-mentioned antibacterial frit is used in antibacterial ceramic products, including:

[0080] Antibacterial frit is added to ceramic glaze to form a glaze slurry, which is then applied to the surface of the ceramic body and sintered at a temperature of 1200℃. The ceramic glaze is a commercially available product.

[0081] Comparative Example 2

[0082] An antibacterial frit, comprising an antibacterial complex and a frit base material, wherein the antibacterial complex is composed of nano-cerium oxide and nano-zinc oxide, and the frit base material comprises, by mass percentage: 50% SiO2, 20% Al2O3, 5% K2O+Na2O, 20% ZnO+BaO+SrO, 5% CaO+MgO, and K2O / Na2O = 4, CaO / MgO = 1.5;

[0083] The mass ratio between the antibacterial compound and the fused aggregate is 0.1:1.

[0084] Of which, based on the total mass of the frit base material, K₂O accounts for 4%, Na₂O 1%, ZnO 3%, BaO 11%, SrO 6%, CaO 3%, and MgO 2%.

[0085] The mass ratio of nano-cerium oxide to nano-zinc oxide is 1:5.

[0086] The above-mentioned antibacterial frit is used in antibacterial ceramic products, including:

[0087] Weigh out the raw materials of the antibacterial frit according to the proportions, add them directly to the ceramic glaze to make a glaze slurry, apply it to the surface of the ceramic body, and sinter it at a temperature of 1200℃. The ceramic glaze is a commercially available product.

[0088] Comparative Example 3

[0089] An antibacterial frit, comprising an antibacterial complex and a frit base material, wherein the antibacterial complex is composed of nano-cerium oxide, and the frit base material comprises, by mass percentage: SiO2 50%, Al2O3 20%, K2O+Na2O=5%, ZnO+BaO+SrO=20%, CaO+MgO=5%, and K2O / Na2O=4, CaO / MgO=1.5;

[0090] The mass ratio between the antibacterial compound and the fused aggregate is 0.1:1.

[0091] Of which, based on the total mass of the frit base material, K₂O accounts for 4%, Na₂O 1%, ZnO 3%, BaO 11%, SrO 6%, CaO 3%, and MgO 2%.

[0092] The above-mentioned method for preparing antibacterial frit includes:

[0093] Weigh out each raw material according to the proportion, mix them thoroughly, melt them, then quench them in water, dry them, and pulverize them into a powdered finished product. The mixing time is 2 hours and the melting temperature is 1600℃.

[0094] The above-mentioned antibacterial frit is used in antibacterial ceramic products, including:

[0095] Antibacterial frit is added to ceramic glaze to form a glaze slurry, which is then applied to the surface of the ceramic body and sintered at a temperature of 1200℃. The ceramic glaze is a commercially available product.

[0096] Comparative Example 4

[0097] An antibacterial frit, comprising an antibacterial complex and a frit base material, wherein the antibacterial complex is composed of nano-zinc oxide, and the frit base material comprises, by mass percentage: SiO2 50%, Al2O3 20%, K2O+Na2O=5%, ZnO+BaO+SrO=20%, CaO+MgO=5%, and K2O / Na2O=4, CaO / MgO=1.5;

[0098] The mass ratio between the antibacterial compound and the fused aggregate is 0.1:1.

[0099] Of which, based on the total mass of the frit base material, K₂O accounts for 4%, Na₂O 1%, ZnO 3%, BaO 11%, SrO 6%, CaO 3%, and MgO 2%.

[0100] The above-mentioned method for preparing antibacterial frit includes:

[0101] Weigh out each raw material according to the proportion, mix them thoroughly, melt them, then quench them in water, dry them, and pulverize them into a powdered finished product. The mixing time is 2 hours and the melting temperature is 1600℃.

[0102] The above-mentioned antibacterial frit is used in antibacterial ceramic products, including:

[0103] Antibacterial frit is added to ceramic glaze to form a glaze slurry, which is then applied to the surface of the ceramic body and sintered at a temperature of 1200℃. The ceramic glaze is a commercially available product.

[0104] Comparative Example 5

[0105] The difference between this comparative example and Comparative Example 1 is that the above-mentioned antibacterial frit is used in antibacterial ceramic products, and the applications include:

[0106] Antibacterial frit is added to ceramic glaze to form a glaze slurry, which is then applied to the surface of the ceramic body and sintered at a temperature of 1170℃. The ceramic glaze is a commercially available product.

[0107] (I) Antibacterial performance testing:

[0108] Testing Institution: Guangdong Provincial Center for Microbiology Analysis and Testing

[0109] Testing basis and methods: JC / T897-2014

[0110] Test report number: 2022FM21924R01

[0111] Test Sample: Example 1

[0112] The test results are shown in the table below:

[0113]

[0114] (II) Comprehensive Performance Comparison Test:

[0115] 1) Comparative test of antibacterial properties

[0116] Testing basis and methods: JC / T897-2014

[0117] Test samples: Examples 1 to 3, Comparative Examples 1 to 4

[0118] The test results are shown in the table below:

[0119]

[0120] 2) Transparency Contrast Detection

[0121] Testing basis and method: After the sample is fired, the body is removed, and the visible light linear transmittance of the glaze layer (1mm thick) is tested;

[0122] Test samples: Examples 1 to 4, Comparative Example 1;

[0123] The test results are shown in the table below:

[0124] experimental group Linear transmittance of visible light (%) Example 1 70 Example 2 63 Example 3 69 Example 4 67 Comparative Example 1 42

[0125] 3) Stability test

[0126] Testing criteria and methods: After firing, observe the appearance of the sample to check for quality problems such as bubbles, glaze shrinkage, cracks, and color differences.

[0127] Tested samples: Example 1, Example 4, Comparative Example 1, Comparative Example 5

[0128]

[0129] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. An antibacterial frit, characterized in that, This is used for antibacterial ceramic products. The green body of the antibacterial ceramic product is a ceramic green body. The antibacterial frit includes an antibacterial composite and a frit base material. The antibacterial composite is composed of nano-cerium oxide and nano-zinc oxide. The chemical composition of the frit base material by mass percentage includes: SiO2 44~55%, Al2O3 18~20%, K2O+Na2O=5~7%, ZnO+BaO+SrO=2.5~24%, CaO+MgO=5~10.5%, and K2O / Na2O=2~5, CaO / MgO=1.2~4. The mass ratio of the antibacterial compound to the fused aggregate is 0.08~0.15:1; Based on the total mass of the frit base material, ZnO is 1~3%, BaO is 6~11%, and SrO is 1.5~6%.

2. The antibacterial frit according to claim 1, characterized in that, The mass ratio of the nano-cerium oxide to the nano-zinc oxide is 1:(3~5).

3. The antibacterial frit according to claim 1, characterized in that, Based on the total mass of the frit base material, CaO is 3-8% and MgO is 2-2.5%.

4. A method for preparing an antibacterial frit according to any one of claims 1 to 3, characterized in that, include: Weigh out each raw material according to the proportion, mix them thoroughly, melt them, and then quench them in water, dry them, and pulverize them into a powdered finished product.

5. The method for preparing the antibacterial frit according to claim 4, characterized in that, The melting temperature is 1550~1600℃.

6. The application of an antibacterial frit according to any one of claims 1 to 3 in antibacterial ceramic products, characterized in that, The applications include: The antibacterial frit is added to the ceramic glaze to form a glaze slurry, which is then applied to the surface of the ceramic body and sintered.

7. The application according to claim 6, characterized in that, The amount of antibacterial frit added is 10% to 12% of the total mass of the ceramic glaze.

Images