High-temperature-resistant invisible anti-counterfeiting material for sanitary ceramics, preparation method and application thereof

Abstract

This application relates to a high-temperature resistant invisible anti-counterfeiting material for sanitary ceramics, its preparation method, and its application. The raw materials of this high-temperature resistant invisible anti-counterfeiting material include, by weight percentage: 90wt%-95wt% of component A and 5wt%-10wt% of component B. Component A contains 25wt%-32wt% quartz, 7wt%-12wt% kaolin, 5wt%-10wt% dolomite, 25wt%-30wt% feldspar, 6wt%-11wt% calcite, 5wt%-8wt% wollastonite, and 10wt%-14wt% zirconium silicate. Component B contains 38wt%-47wt% alumina, 29wt%-37wt% strontium carbonate, 2wt%-5wt% barium carbonate, 8wt%-11wt% thulium oxide, 2wt%-5wt% gadolinium oxide, 1wt%-2wt% ytterbium oxide, and 5wt%-8wt% ammonium dihydrogen phosphate. The high-temperature resistant invisible anti-counterfeiting material prepared in this application conceals product information under natural light irradiation and displays clear product information under ultraviolet light irradiation, thereby achieving the invisible effect of anti-counterfeiting and anti-counterfeiting information.

Description

Technical Field

[0001] This application belongs to the field of ceramic anti-counterfeiting materials technology, specifically relating to high-temperature resistant invisible anti-counterfeiting materials for sanitary ceramics, their preparation methods and applications. Background Technology

[0002] Anti-counterfeiting technology is a powerful means to protect brand reputation, safeguard public safety, protect consumer rights, and ensure food safety. With economic development and technological advancements, the fight against counterfeiting and imitation has been ongoing for a long time, making effective anti-counterfeiting measures particularly important.

[0003] The most common anti-counterfeiting technologies for sanitary ceramics include paper anti-counterfeiting and anti-counterfeiting labels and high-temperature clear code anti-counterfeiting. Paper anti-counterfeiting is easily damaged, while high-temperature clear code anti-counterfeiting, because the code is clearly visible, can be directly altered by dealers, making it impossible to prevent counterfeiting or cross-selling.

[0004] The only reported technology for high-temperature invisible anti-counterfeiting of sanitary ceramics is patent CN113831018A. In this patent, the invisible anti-counterfeiting information is displayed under infrared light and requires a special display to show the information. Summary of the Invention

[0005] To address the aforementioned issues, this application provides a high-temperature resistant invisible anti-counterfeiting material for sanitary ceramics, its preparation method, and its application. The high-temperature resistant invisible anti-counterfeiting material of this application utilizes the unique electronic structure and abundant energy levels of thulium oxide, gadolinium oxide, and ytterbium oxide, which produce a fluorescent effect under ultraviolet light irradiation, thereby displaying information. The high-temperature resistant invisible anti-counterfeiting material prepared in this application conceals product information under natural light irradiation but displays clear product information under ultraviolet light irradiation, thus achieving an invisible effect for anti-counterfeiting and anti-counterfeiting information.

[0006] In one aspect, this application provides a high-temperature resistant invisible anti-counterfeiting material for sanitary ceramics, the raw materials of which comprise: 90wt%-95wt% of component A and 5wt%-10wt% of component B, wherein component A comprises 25wt%-32wt% of quartz, 7wt%-12wt% of kaolin, 5wt%-10wt% of dolomite, 25wt%-30wt% of feldspar, 6wt%-11wt% of calcite, 5wt%-8wt% of wollastonite, and 10wt%-14wt% of zirconium silicate; and component B comprises 38wt%-47wt% of alumina, 29wt%-37wt% of strontium carbonate, 2wt%-5wt% of barium carbonate, 8wt%-11wt% of thulium oxide, 2wt%-5wt% of gadolinium oxide, 1wt%-2wt% of ytterbium oxide, and 5wt%-8wt% of ammonium dihydrogen phosphate.

[0007] In the embodiments of this application, the raw materials of the high-temperature resistant invisible anti-counterfeiting material include: 90-93 wt% of component A and 7-10 wt% of component B; component A includes 25 wt%-32 wt% of quartz, 7 wt%-12 wt% of kaolin, 5 wt%-10 wt% of dolomite, 25 wt%-30 wt% of feldspar, 6 wt%-11 wt% of calcite, 5 wt%-8 wt% of wollastonite, and 10 wt%-14 wt% of zirconium silicate; component B includes 38 wt%-47 wt% of alumina, 29 wt%-37 wt% of strontium carbonate, 2 wt%-5 wt% of barium carbonate, 8 wt%-11 wt% of thulium oxide, 2 wt%-5 wt% of gadolinium oxide, 1 wt%-2 wt% of ytterbium oxide, and 5 wt%-7 wt% of ammonium dihydrogen phosphate.

[0008] In an embodiment of this application, the raw materials of the high-temperature resistant invisible anti-counterfeiting material comprise: 90-93 wt% of component A and 7-10 wt% of component B; component A comprises 29 wt%-32 wt% quartz, 7 wt%-10 wt% kaolin, 6 wt%-8 wt% dolomite, 27 wt%-30 wt% feldspar, 6 wt%-8 wt% calcite, 5 wt%-6.5 wt% wollastonite, and 11.5 wt%-14 wt% zirconium silicate; component B comprises 38 wt%-43 wt% alumina, 31 wt%-37 wt% strontium carbonate, 2 wt%-4 wt% barium carbonate, 9.5 wt%-11 wt% thulium oxide, 4 wt%-5 wt% gadolinium oxide, 1.5 wt%-2 wt% ytterbium oxide, and 5 wt%-7 wt% ammonium dihydrogen phosphate; or

[0009] The raw materials of the high-temperature resistant invisible anti-counterfeiting material include: 90 wt% component A and 10 wt% component B; component A includes 32 wt% quartz, 7 wt% kaolin, 6 wt% dolomite, 30 wt% feldspar, 6 wt% calcite, 5 wt% wollastonite, and 14 wt% zirconium silicate; component B includes 38 wt% alumina, 37 wt% strontium carbonate, 2 wt% barium carbonate, 11 wt% thulium oxide, 5 wt% gadolinium oxide, 2 wt% ytterbium oxide, and 5 wt% ammonium dihydrogen phosphate; or

[0010] The raw materials of the high-temperature resistant invisible anti-counterfeiting material include: 95 wt% component A and 5 wt% component B; component A includes 25 wt% quartz, 12 wt% kaolin, 10 wt% dolomite, 25 wt% feldspar, 10 wt% calcite, 8 wt% wollastonite, and 10 wt% zirconium silicate; component B includes 47 wt% alumina, 29 wt% strontium carbonate, 5 wt% barium carbonate, 8 wt% thulium oxide, 2 wt% gadolinium oxide, 1 wt% ytterbium oxide, and 8 wt% ammonium dihydrogen phosphate; or

[0011] The raw materials of the high-temperature resistant invisible anti-counterfeiting material include: 93 wt% of component A and 7 wt% of component B; component A includes 29 wt% quartz, 10 wt% kaolin, 8 wt% dolomite, 27 wt% feldspar, 8 wt% calcite, 6.5 wt% wollastonite, and 11.5 wt% zirconium silicate; component B includes 43 wt% alumina, 31 wt% strontium carbonate, 4 wt% barium carbonate, 9.5 wt% thulium oxide, 4 wt% gadolinium oxide, 1.5 wt% ytterbium oxide, and 7 wt% ammonium dihydrogen phosphate.

[0012] On the other hand, this application provides a method for preparing the above-mentioned high-temperature resistant invisible anti-counterfeiting material for sanitary ceramics, the method comprising the following steps:

[0013] (1) Weigh raw material components A and B according to their weight percentages;

[0014] (2) Mix the B component of the above raw materials and then calcine them. After calcination, ball mill them to 80-120 mesh and dry them for later use.

[0015] (3) Mix the above raw material component A and calcined component B with water, ball mill, and dry to obtain a high-temperature resistant invisible anti-counterfeiting material for sanitary ceramics.

[0016] In the embodiments of this application, the calcination time in step (2) is 2-3 hours, and the calcination temperature is controlled at 1240-1260℃.

[0017] In the embodiments of this application, in step (3), the raw material component A and the calcined component B are mixed and ball-milled until the particle size is below 10 μm, wherein the powder accounts for 65wt%-75wt% by mass.

[0018] On the other hand, this application provides a sanitary ceramic product with invisible anti-counterfeiting function, which includes the above-mentioned high-temperature resistant invisible anti-counterfeiting material for sanitary ceramics.

[0019] In another aspect, this application provides a sanitary ceramic product with invisible anti-counterfeiting function, which includes a high-temperature resistant invisible anti-counterfeiting material prepared by the above method.

[0020] In another aspect, this application provides a method for preparing a sanitary ceramic product with invisible anti-counterfeiting function, including the following steps: printing the above-mentioned high-temperature resistant invisible anti-counterfeiting material onto the glaze surface of the sanitary ceramic that has been glazed, and firing it in a kiln using a sintering process to obtain a sanitary ceramic product with invisible anti-counterfeiting function.

[0021] In the embodiments of this application, the sintering temperature of the sintering process is 1210-1240℃, and the firing time is 14-17h.

[0022] In the high-temperature resistant invisible anti-counterfeiting material of this application, component A is the base glaze, used to prepare a white glaze paste for writing white characters on the white glaze surface of ceramics, achieving an invisible effect to the naked eye. Furthermore, component A acts as a solvent for component B, enabling component B to integrate with the ceramic product. Component B is a red invisible powder; calcination is used to ensure the uniform fusion of various chemical materials, making the anti-counterfeiting information identifiable.

[0023] The beneficial effects of this application are:

[0024] 1. Component A of this application is the same as the glaze composition of sanitary ceramics, which makes the high-temperature resistant invisible anti-counterfeiting material used in sanitary ceramics form an integral part with the ceramic product, thus presenting an invisible effect to the naked eye;

[0025] 2. This application utilizes the unique electronic structure and abundant energy levels of thulium oxide, gadolinium oxide, and ytterbium oxide to produce a fluorescent effect under ultraviolet light irradiation, thereby enabling the display of product information;

[0026] 3. The high-temperature resistant invisible anti-counterfeiting material for sanitary ceramics prepared in this application conceals product information under natural light irradiation and displays clear product information under ultraviolet light irradiation, thereby achieving the invisible effect of anti-counterfeiting and anti-counterfeiting information.

[0027] Other features and advantages of this application will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the application. Other advantages of this application may be realized and obtained by means of the methods described in the description. Attached Figure Description

[0028] The accompanying drawings are used to provide an understanding of the technical solutions of this application and constitute a part of the specification. They are used together with the embodiments of this application to explain the technical solutions of this application and do not constitute a limitation on the technical solutions of this application.

[0029] Figure 1 The product information is hidden under natural light when the sanitary ceramic product with invisible anti-counterfeiting function prepared in Example 1 of this application is exposed.

[0030] Figure 2 This is a product information display image of the sanitary ceramic product with invisible anti-counterfeiting function prepared in Example 1 of this application under ultraviolet light irradiation. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in detail below. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be arbitrarily combined with each other.

[0032] This application provides a high-temperature resistant invisible anti-counterfeiting material for sanitary ceramics. The raw materials of the high-temperature resistant invisible anti-counterfeiting material include: 90wt%-95wt% of component A and 5wt%-10wt% of component B. Component A includes 25wt%-32wt% of quartz, 7wt%-12wt% of kaolin, 5wt%-10wt% of dolomite, 25wt%-30wt% of feldspar, 6wt%-11wt% of calcite, 5wt%-8wt% of wollastonite, and 10wt%-14wt% of zirconium silicate. Component B includes 38wt%-47wt% of alumina, 29wt%-37wt% of strontium carbonate, 2wt%-5wt% of barium carbonate, 8wt%-11wt% of thulium oxide, 2wt%-5wt% of gadolinium oxide, 1wt%-2wt% of ytterbium oxide, and 5wt%-8wt% of ammonium dihydrogen phosphate.

[0033] In the embodiments of this application, the raw materials of the high-temperature resistant invisible anti-counterfeiting material include: 90-93 wt% of component A and 7-10 wt% of component B; component A includes 25 wt%-32 wt% of quartz, 7 wt%-12 wt% of kaolin, 5 wt%-10 wt% of dolomite, 25 wt%-30 wt% of feldspar, 6 wt%-11 wt% of calcite, 5 wt%-8 wt% of wollastonite, and 10 wt%-14 wt% of zirconium silicate; component B includes 38 wt%-47 wt% of alumina, 29 wt%-37 wt% of strontium carbonate, 2 wt%-5 wt% of barium carbonate, 8 wt%-11 wt% of thulium oxide, 2 wt%-5 wt% of gadolinium oxide, 1 wt%-2 wt% of ytterbium oxide, and 5 wt%-7 wt% of ammonium dihydrogen phosphate.

[0034] In the embodiments of this application, the raw materials of the high-temperature resistant invisible anti-counterfeiting material comprise: 90-93 wt% of component A and 7-10 wt% of component B; component A comprises 29 wt%-32 wt% quartz, 7 wt%-10 wt% kaolin, 6 wt%-8 wt% dolomite, 27 wt%-30 wt% feldspar, 6 wt%-8 wt% calcite, 5 wt%-6.5 wt% wollastonite, and 11.5 wt%-14 wt% zirconium silicate; component B comprises 38 wt%-43 wt% alumina, 31 wt%-37 wt% strontium carbonate, 2 wt%-4 wt% barium carbonate, 9.5 wt%-11 wt% thulium oxide, 4 wt%-5 wt% gadolinium oxide, 1.5 wt%-2 wt% ytterbium oxide, and 5 wt%-7 wt% ammonium dihydrogen phosphate; or

[0035] The raw materials of the high-temperature resistant invisible anti-counterfeiting material include: 90 wt% component A and 10 wt% component B; component A includes 32 wt% quartz, 7 wt% kaolin, 6 wt% dolomite, 30 wt% feldspar, 6 wt% calcite, 5 wt% wollastonite, and 14 wt% zirconium silicate; component B includes 38 wt% alumina, 37 wt% strontium carbonate, 2 wt% barium carbonate, 11 wt% thulium oxide, 5 wt% gadolinium oxide, 2 wt% ytterbium oxide, and 5 wt% ammonium dihydrogen phosphate; or

[0036] The raw materials of the high-temperature resistant invisible anti-counterfeiting material include: 95 wt% component A and 5 wt% component B; component A includes 25 wt% quartz, 12 wt% kaolin, 10 wt% dolomite, 25 wt% feldspar, 10 wt% calcite, 8 wt% wollastonite, and 10 wt% zirconium silicate; component B includes 47 wt% alumina, 29 wt% strontium carbonate, 5 wt% barium carbonate, 8 wt% thulium oxide, 2 wt% gadolinium oxide, 1 wt% ytterbium oxide, and 8 wt% ammonium dihydrogen phosphate; or

[0037] The raw materials of the high-temperature resistant invisible anti-counterfeiting material include: 93 wt% of component A and 7 wt% of component B; component A includes 29 wt% quartz, 10 wt% kaolin, 8 wt% dolomite, 27 wt% feldspar, 8 wt% calcite, 6.5 wt% wollastonite, and 11.5 wt% zirconium silicate; component B includes 43 wt% alumina, 31 wt% strontium carbonate, 4 wt% barium carbonate, 9.5 wt% thulium oxide, 4 wt% gadolinium oxide, 1.5 wt% ytterbium oxide, and 7 wt% ammonium dihydrogen phosphate.

[0038] This application also provides a method for preparing the above-mentioned high-temperature resistant invisible anti-counterfeiting material for sanitary ceramics, the method comprising the following steps:

[0039] (1) Weigh raw material components A and B according to their weight percentages;

[0040] (2) Mix the B component of the above raw materials and then calcine them. After calcination, ball mill them to 80-120 mesh and dry them for later use.

[0041] (3) Mix the above raw material component A and calcined component B with water, ball mill, and dry to obtain a high-temperature resistant invisible anti-counterfeiting material for sanitary ceramics.

[0042] In the embodiments of this application, the calcination time in step (2) is 2-3 hours, and the calcination temperature is controlled at 1240-1260℃.

[0043] In the embodiments of this application, in step (3), the raw material component A and the calcined component B are mixed and ball-milled until the particle size is below 10 μm, wherein the powder accounts for 65wt%-75wt% by mass.

[0044] This application also provides a sanitary ceramic product with invisible anti-counterfeiting function, which includes the above-mentioned high-temperature resistant invisible anti-counterfeiting material for sanitary ceramics.

[0045] This application also provides a sanitary ceramic product with invisible anti-counterfeiting function, which includes a high-temperature resistant invisible anti-counterfeiting material prepared by the above method.

[0046] This application also provides a method for preparing a sanitary ceramic product with invisible anti-counterfeiting function, including the following steps: printing the above-mentioned high-temperature resistant invisible anti-counterfeiting material onto the glazed surface of the sanitary ceramic that has been glazed, and firing it in a kiln using a sintering process to obtain a sanitary ceramic product with invisible anti-counterfeiting function.

[0047] In the embodiments of this application, the sintering temperature of the sintering process is 1210-1240℃, and the firing time is 14-17h.

[0048] Example 1

[0049] This embodiment provides a high-temperature resistant invisible anti-counterfeiting material for sanitary ceramics. The raw materials of the high-temperature resistant invisible anti-counterfeiting material include: 90 wt% of component A and 10 wt% of component B. Component A includes 32 wt% quartz, 7 wt% kaolinite, 6 wt% dolomite, 30 wt% feldspar, 6 wt% calcite, 5 wt% wollastonite, and 14 wt% zirconium silicate. Component B includes 38 wt% alumina, 37 wt% strontium carbonate, 2 wt% barium carbonate, 11 wt% thulium oxide, 5 wt% gadolinium oxide, 2 wt% ytterbium oxide, and 5 wt% ammonium dihydrogen phosphate.

[0050] The high-temperature resistant invisible anti-counterfeiting material for sanitary ceramics in this embodiment is prepared by the following method:

[0051] (1) Weigh raw material components A and B according to their weight percentages;

[0052] (2) Mix the B component of the above raw materials and then calcine for 2 hours. The sintering temperature is controlled at 1260℃. After calcination, ball mill to 80-120 mesh and dry for later use.

[0053] (3) Mix the above raw material component A and calcined component B with water and ball mill until the particle size is below 10μm. The powder accounts for 70.5wt% by mass. After drying, a high-temperature resistant invisible anti-counterfeiting material for sanitary ceramics is obtained.

[0054] This embodiment also provides a sanitary ceramic product with invisible anti-counterfeiting function, which includes the above-mentioned high-temperature resistant invisible anti-counterfeiting material for sanitary ceramics.

[0055] This embodiment also provides a sanitary ceramic product with invisible anti-counterfeiting function, which includes a high-temperature resistant invisible anti-counterfeiting material prepared by the above method.

[0056] A sanitary ceramic product with invisible anti-counterfeiting function is prepared according to the following method:

[0057] The above-mentioned high-temperature resistant invisible anti-counterfeiting material is printed onto the glazed surface of sanitary ceramics that have already been glazed. The sanitary ceramics are then fired in a kiln using a sanitary ceramics sintering process to obtain sanitary ceramic products with invisible anti-counterfeiting functions. The sintering temperature of the sintering process is 1240℃ and the firing time is 14h.

[0058] The prepared sanitary ceramic products with invisible anti-counterfeiting features have product information hidden images under natural light, as shown in the image. Figure 1 As shown; the product information display of sanitary ceramic products with invisible anti-counterfeiting function under ultraviolet light is shown in the image. Figure 2 As shown, from Figure 2 The red letters "JOMOO" are clearly visible.

[0059] Example 2

[0060] This embodiment provides a high-temperature resistant invisible anti-counterfeiting material for sanitary ceramics. The raw materials of the high-temperature resistant invisible anti-counterfeiting material include: 95 wt% of component A and 5 wt% of component B. Component A includes 25 wt% quartz, 12 wt% kaolinite, 10 wt% dolomite, 25 wt% feldspar, 10 wt% calcite, 8 wt% wollastonite, and 10 wt% zirconium silicate. Component B includes 47 wt% alumina, 29 wt% strontium carbonate, 5 wt% barium carbonate, 8 wt% thulium oxide, 2 wt% gadolinium oxide, 1 wt% ytterbium oxide, and 8 wt% ammonium dihydrogen phosphate.

[0061] The high-temperature resistant invisible anti-counterfeiting material for sanitary ceramics in this embodiment is prepared by the following method:

[0062] (1) Weigh raw material components A and B according to their weight percentages;

[0063] (2) Mix the B component of the above raw materials and then calcine for 3 hours. The sintering temperature is controlled at 1240℃. After calcination, ball mill to 80-120 mesh and dry for later use.

[0064] (3) The above raw material component A and calcined component B are mixed with water and ball-milled to a particle size of less than 10 μm, wherein the powder accounts for 73.8 wt% by mass. After drying, a high-temperature resistant invisible anti-counterfeiting material for sanitary ceramics is obtained.

[0065] This embodiment also provides a sanitary ceramic product with invisible anti-counterfeiting function, which is made of the above-mentioned high-temperature resistant invisible anti-counterfeiting material for sanitary ceramics or the high-temperature resistant invisible anti-counterfeiting material prepared by the above method.

[0066] A sanitary ceramic product with invisible anti-counterfeiting function is prepared according to the following method:

[0067] The above-mentioned high-temperature resistant invisible anti-counterfeiting material is printed onto the glazed surface of sanitary ceramics using a printing method. The sanitary ceramics are then fired in a kiln using a sanitary ceramics sintering process to obtain sanitary ceramic products with invisible anti-counterfeiting functions. The sintering temperature of the sintering process is 1210℃ and the firing time is 17h.

[0068] Example 3

[0069] The contents of components A and B of the high-temperature resistant invisible anti-counterfeiting material for sanitary ceramics in Example 3 are shown in Table 1 below, while the compositions and contents of components A and B are shown in Tables 2 and 3, respectively. Furthermore, the high-temperature resistant invisible anti-counterfeiting material for sanitary ceramics in Example 3 was prepared according to the method described in Example 1.

[0070] Comparative Examples 1-6

[0071] The contents of components A and B of the anti-counterfeiting materials of Comparative Examples 1-6 are shown in Table 1 below, and the compositions and contents of components A and B are shown in Tables 2 and 3, respectively. Furthermore, the anti-counterfeiting materials of Comparative Examples 1-6 were prepared according to the method described in Example 1 above.

[0072] Table 1.

[0073] Table 2.

[0074] Table 3.

[0075]

[0076]

[0077] Table 4 shows the product information of sanitary ceramic products prepared using the anti-counterfeiting materials of Examples 1 to 3 and Comparative Examples 1 to 6 under natural light and ultraviolet light.

[0078] Table 4.

[0079]

[0080] As shown in Table 4, the sanitary ceramic products with invisible anti-counterfeiting function prepared using the anti-counterfeiting materials of Examples 1-3 have unclear product information under natural light, but clear product information under ultraviolet light. Conversely, the sanitary ceramic products prepared using the anti-counterfeiting materials of Comparative Examples 1-6 have unclear product information under both natural and ultraviolet light.

[0081] Although the embodiments disclosed in this application are as described above, the content described is merely for the purpose of understanding this application and is not intended to limit this application. Any person skilled in the art to which this application pertains may make any modifications and changes in the form and details of the implementation without departing from the spirit and scope disclosed in this application; however, the scope of patent protection of this application shall still be determined by the scope defined in the appended claims.

Claims

1. A high-temperature resistant, invisible anti-counterfeiting material for sanitary ceramics, characterized in that, The raw materials of the high-temperature resistant invisible anti-counterfeiting material include: 90wt%-95wt% of component A and 5wt%-10wt% of component B. Component A includes 25wt%-32wt% of quartz, 7wt%-12wt% of kaolin, 5wt%-10wt% of dolomite, 25wt%-30wt% of feldspar, 6wt%-11wt% of calcite, 5wt%-8wt% of wollastonite, and 10wt%-14wt% of zirconium silicate. Component B includes 38wt%-47wt% of alumina, 29wt%-37wt% of strontium carbonate, 2wt%-5wt% of barium carbonate, 8wt%-11wt% of thulium oxide, 2wt%-5wt% of gadolinium oxide, 1wt%-2wt% of ytterbium oxide, and 5wt%-8wt% of ammonium dihydrogen phosphate.

2. The high-temperature resistant invisible anti-counterfeiting material for sanitary ceramics according to claim 1, wherein, The raw materials of the high-temperature resistant invisible anti-counterfeiting material include: 90wt%-93wt% of component A and 7wt%-10wt% of component B; component A includes 25wt%-32wt% of quartz, 7wt%-12wt% of kaolin, 5wt%-10wt% of dolomite, 25wt%-30wt% of feldspar, 6wt%-11wt% of calcite, 5wt%-8wt% of wollastonite, and 10wt%-14wt% of zirconium silicate; component B includes 38wt%-47wt% of alumina, 29wt%-37wt% of strontium carbonate, 2wt%-5wt% of barium carbonate, 8wt%-11wt% of thulium oxide, 2wt%-5wt% of gadolinium oxide, 1wt%-2wt% of ytterbium oxide, and 5wt%-7wt% of ammonium dihydrogen phosphate.

3. The high-temperature resistant invisible anti-counterfeiting material for sanitary ceramics according to claim 1, wherein, The raw materials of the high-temperature resistant invisible anti-counterfeiting material include: 90wt%-93wt% of component A and 7wt%-10wt% of component B; component A includes 29wt%-32wt% quartz, 7wt%-10wt% kaolin, 6wt%-8wt% dolomite, 27wt%-30wt% feldspar, 6wt%-8wt% calcite, 5wt%-6.5wt% wollastonite, and 11.5wt%-14wt% zirconium silicate; component B includes 38wt%-43wt% alumina, 31wt%-37wt% strontium carbonate, 2wt%-4wt% barium carbonate, 9.5wt%-11wt% thulium oxide, 4wt%-5wt% gadolinium oxide, 1.5wt%-2wt% ytterbium oxide, and 5wt%-7wt% ammonium dihydrogen phosphate; or The raw materials of the high-temperature resistant invisible anti-counterfeiting material include: 90 wt% component A and 10 wt% component B; component A includes 32 wt% quartz, 7 wt% kaolin, 6 wt% dolomite, 30 wt% feldspar, 6 wt% calcite, 5 wt% wollastonite, and 14 wt% zirconium silicate; component B includes 38 wt% alumina, 37 wt% strontium carbonate, 2 wt% barium carbonate, 11 wt% thulium oxide, 5 wt% gadolinium oxide, 2 wt% ytterbium oxide, and 5 wt% ammonium dihydrogen phosphate; or The raw materials of the high-temperature resistant invisible anti-counterfeiting material include: 95 wt% component A and 5 wt% component B; component A includes 25 wt% quartz, 12 wt% kaolin, 10 wt% dolomite, 25 wt% feldspar, 10 wt% calcite, 8 wt% wollastonite, and 10 wt% zirconium silicate; component B includes 47 wt% alumina, 29 wt% strontium carbonate, 5 wt% barium carbonate, 8 wt% thulium oxide, 2 wt% gadolinium oxide, 1 wt% ytterbium oxide, and 8 wt% ammonium dihydrogen phosphate; or The raw materials of the high-temperature resistant invisible anti-counterfeiting material include: 93 wt% of component A and 7 wt% of component B; component A includes 29 wt% quartz, 10 wt% kaolin, 8 wt% dolomite, 27 wt% feldspar, 8 wt% calcite, 6.5 wt% wollastonite, and 11.5 wt% zirconium silicate; component B includes 43 wt% alumina, 31 wt% strontium carbonate, 4 wt% barium carbonate, 9.5 wt% thulium oxide, 4 wt% gadolinium oxide, 1.5 wt% ytterbium oxide, and 7 wt% ammonium dihydrogen phosphate.

4. A method for preparing a high-temperature resistant, invisible anti-counterfeiting material for sanitary ceramics according to any one of claims 1-3, characterized in that, The method includes the following steps: (1) Weigh raw material components A and B according to their weight percentages; (2) Mix the B component of the above raw materials and then calcine them. After calcination, ball mill them to 80-120 mesh and dry them for later use. (3) Mix the above raw material component A and calcined component B with water, ball mill, and dry to obtain a high-temperature resistant invisible anti-counterfeiting material for sanitary ceramics.

5. The method according to claim 4, wherein, The calcination time in step (2) is 2-3 hours, and the calcination temperature is controlled at 1240-1260℃.

6. The method according to claim 4, wherein, In step (3), the raw material component A and the calcined component B are mixed and ball-milled until the particle size is below 10 μm, wherein the powder accounts for 65wt%-75wt% by mass.

7. A sanitary ceramic product with invisible anti-counterfeiting function, comprising the high-temperature resistant invisible anti-counterfeiting material for sanitary ceramics as described in any one of claims 1-3.

8. A sanitary ceramic product with invisible anti-counterfeiting function, comprising a high-temperature resistant invisible anti-counterfeiting material prepared by any one of claims 4-6.

9. The method for preparing a sanitary ceramic product with invisible anti-counterfeiting function as described in claim 7 or 8, characterized in that, Includes the following steps: The high-temperature resistant invisible anti-counterfeiting material is printed onto the glazed surface of sanitary ceramics using a printing method, and then fired in a kiln using a sintering process to obtain sanitary ceramic products with invisible anti-counterfeiting functions.

10. The preparation method according to claim 9, wherein, The sintering temperature of the sintering process is 1210-1240℃, and the firing time is 14-17h.

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