Temperable micro-nano textured glass panel and method of making the same

Abstract

The application provides a kind of toughenable micro-nano textured glass panel and its preparation method, belong to glass preparation field, wherein, preparation method includes cutting and grinding processing and cleaning to glass, high temperature UV transfer printing and solidification to the front surface of glass, complete texture production, then heat after edge cleaning glass, smoke, toughen, get the toughened glass with micro-nano texture, finally, low temperature colored topcoat printing and bottom sealing protection are carried out on the back of the glass, and the glass product is obtained. The application solves the problem of low temperature UV product texture, which cannot withstand high temperature, cannot adapt to the toughening process, affects the physicochemical properties of the prepared toughened glass, and has poor weather resistance and low adhesion by using high temperature UV transfer printing for glass texture production. By cooperating with the smoke process, the organic solvent is fully volatilized, the ink is more transparent, and the glass surface texture is more delicate and rich than ordinary high temperature ink screen printing texture, providing a new method for toughened glass texture processing.

Description

Technical Field

[0001] This invention relates to the field of glass preparation technology, specifically to a temperable micro-nano textured glass panel and its preparation method. Background Technology

[0002] Tempered glass, also known as reinforced glass, is glass with a compressive stress layer on its surface. Compared to ordinary glass, it exhibits significantly improved strength, heat resistance, and mechanical properties. This is because the presence of a high compressive stress layer allows it to partially offset tensile stress when subjected to external forces, preventing breakage. Consequently, tempered glass technology has been widely adopted and is now extensively used in the automotive, construction, aerospace, and electronics industries.

[0003] Tempered glass is made by first cutting ordinary annealed glass to the required size, then heating it to near its softening point, and finally rapidly and evenly cooling it. Currently, methods for processing surface textures or prints on tempered glass include: acid etching, where an adhesive template is applied to the tempered glass surface, followed by an acid etching solution that dissolves the glass outside the adhesive, creating the pattern; sandblasting, which creates a rough texture on the glass surface, enhancing both aesthetics and safety; laser engraving, a novel method for processing textures on tempered glass, offering advantages such as high processing speed, high precision, and diverse patterns; and embossing, which involves placing a texture template on the tempered glass surface and then tempering both the template and the glass together to create textured tempered glass. Of the above processing methods, except for the embossing method, all require further processing of the tempered glass products. The process is complex and can easily affect the properties of the tempered glass itself. The embossing method tempers the mold and the glass together, which will affect the tempering process parameters and effect of the glass.

[0004] In existing technologies, some studies have disclosed the use of inorganic inks from Anmi Micro-Nano Technology to apply a coating before glass tempering via screen printing (texture color-adjustable overprinting), rolling, spraying, or thermal transfer, followed by furnace tempering. However, low-temperature UV transfer of textures to the glass surface results in textures that are not heat-resistant, have poor weather resistance, poor hardness, and poor adhesion. Summary of the Invention

[0005] In view of the technical problems existing in the background art, this application provides a temperable micro-nano textured glass panel and its preparation method, aiming to solve the technical problems of existing tempered glass texture processing difficulties, low temperature UV transfer textures having poor high temperature resistance, poor weather resistance, poor hardness, and poor adhesion.

[0006] In a first aspect, embodiments of this application provide a method for preparing a temperable micro / nano textured glass panel, comprising the following steps:

[0007] S1. Cutting, grinding, and cleaning the glass;

[0008] S2. Apply high-temperature UV transfer and curing to the front of the glass after cleaning in step S1 to complete the texture production, and then clean the edges of the glass.

[0009] S3. The glass that has been cleaned in step S2 is heated to 400-500°C to remove smoke. After the smoke is removed, the glass is put into a tempering furnace for tempering to obtain a tempered glass panel with micro-nano texture.

[0010] In the technical solution of this application embodiment, high-temperature UV transfer printing is used to create glass textures, which solves the problems of low-temperature UV textures being unable to withstand high temperatures, adapting to tempering processes, affecting the physical and chemical properties of the prepared tempered glass, and exhibiting poor weather resistance and adhesion. Furthermore, a fume extraction process is used before tempering to allow organic solvents to fully evaporate, making the ink more transparent. The resulting glass surface texture is finer and richer than that obtained by ordinary high-temperature ink screen printing, providing a new method for tempered glass texture processing.

[0011] In some embodiments, during step S3, when venting smoke from the glass, the heating time is 100–300 s and the smoke venting time is 50–150 s. During glass tempering, the heating temperature is 680–700 °C, the time is 80–300 s, and the quenching air pressure is 55%–95%.

[0012] In this embodiment, by controlling the exhaust heating temperature, time, and exhaust time, the organic solvents in the high-temperature UV ink are fully volatilized, making the ink more transparent and the resulting glass surface texture clearer. By controlling the tempering temperature, time, and rapid cooling air pressure, the glass tempering process is ensured, thereby improving the glass performance.

[0013] In some embodiments, in step S2, the high-temperature UV transfer and curing process is as follows: first, high-temperature UV ink is printed on the front side of the glass using a 100-200 mesh screen; then, a flatbed texturing device is used to imprint the texture of the mold surface onto the printed coating; simultaneously, ultraviolet light is used for curing, with the light source being a UV-LED lamp and an energy of 400-1000 millijoules / square centimeter. The components of the high-temperature UV ink, by mass percentage, include 25%-35% ink thinner, 60%-70% glass powder, and 0.3%-0.5% initiator.

[0014] In this embodiment, high-temperature UV ink is used instead of ordinary low-temperature UV products, which solves the problems of poor high-temperature resistance, poor weather resistance, poor hardness, and poor adhesion of the front low-temperature UV products.

[0015] In some embodiments, the method for preparing a temperable micro / nano textured glass panel further includes the following steps:

[0016] S4. Clean the tempered glass panel from step S3, and use a 150-250 mesh screen to print a low-temperature colored topcoat on the back of the tempered glass; the heating temperature for low-temperature colored topcoat printing is 165-185℃, and the heating time is 6-8 minutes.

[0017] S5. After printing in step S4, seal the tempered glass with protective ink. Use a 100-500 mesh screen to print the protective ink on the cured colored topcoat to obtain the tempered glass product. The heating temperature for printing the protective ink is 180-200℃ and the heating time is 8-10 minutes.

[0018] Secondly, this application provides a temperable micro-nano textured glass panel, which is prepared by the method described in any one of the above-mentioned temperable micro-nano textured glass panels. The temperable micro-nano textured glass panel has the characteristics of fine and rich texture, high adhesion of texture coating, high weather resistance, and excellent high temperature resistance.

[0019] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, specific embodiments of this application are given below. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of this application, the accompanying drawings used in this application will be briefly described below. Obviously, the drawings described below are merely some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without any creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of the tempered glass product in the embodiments of this application. Detailed Implementation

[0022] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0024] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0025] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0026] In existing technologies, surface texture or printing processes for tempered glass are often complex and can easily affect the inherent properties of the tempered glass, impacting the tempering process parameters and results. Some studies have explored applying a coating using inorganic inks from Anmi Micro-Nano technology via screen printing (texture color matching), rolling, spraying, or thermal transfer before tempering, followed by furnace tempering. However, low-temperature UV transfer texturing on the glass surface results in textures that are not heat-resistant, have poor weather resistance, poor hardness, and poor adhesion.

[0027] To address the technical problems of difficult texture processing in existing tempered glass and the poor heat resistance, weather resistance, hardness, and adhesion of low-temperature UV transfer textures, this application provides a temperable micro / nano textured glass panel and its preparation method. By employing high-temperature UV transfer for glass texture fabrication, the method overcomes the issues of low-temperature UV textures being unable to withstand high temperatures, adapting to tempering processes, and affecting the physical and chemical properties of the resulting tempered glass, as well as poor weather resistance and adhesion. Furthermore, a fume extraction process is used before tempering to ensure the complete evaporation of organic solvents, resulting in more transparent inks. This produces a finer and richer texture on the glass surface compared to ordinary high-temperature ink screen printing, providing a new method for tempered glass texture processing. The prepared temperable micro / nano textured glass panel features fine and rich textures, high adhesion of the textured coating, high weather resistance, and excellent high-temperature resistance.

[0028] For ease of explanation, the following embodiments use a method for preparing a temperable micro / nano textured glass panel as an example. This preparation method includes the following steps:

[0029] S1. Cutting, grinding, and cleaning the glass;

[0030] S2. Apply high-temperature UV transfer and curing to the front of the glass after cleaning in step S1 to complete the texture production, and then clean the edges of the glass.

[0031] S3. The glass that has been cleaned in step S2 is heated to 400-500°C to remove smoke. After the smoke is removed, the glass is put into a tempering furnace for tempering to obtain a tempered glass panel with micro-nano texture.

[0032] In the technical solution of this application embodiment, high-temperature UV transfer printing is used to create glass textures, which solves the problems of low-temperature UV textures being unable to withstand high temperatures, adapting to tempering processes, affecting the physical and chemical properties of the prepared tempered glass, and exhibiting poor weather resistance and adhesion. Furthermore, a fume extraction process is used before tempering to allow the organic solvents to fully evaporate, making the ink more transparent. The resulting glass surface texture is finer and richer than that of ordinary high-temperature ink screen printing, providing a new method for tempered glass texture processing.

[0033] Furthermore, in some embodiments, during step S3, when venting smoke from the glass, the heating time is 100–300 s, and the smoke venting time is 50–150 s. During glass tempering, the heating temperature is 680–700 °C, the time is 80–300 s, and the quenching air pressure is 55%–95%.

[0034] In the technical solution of this application embodiment, by controlling the exhaust heating temperature, time and exhaust time, the organic solvent in the high-temperature UV ink is fully volatilized, making the ink more transparent and the resulting glass surface texture clearer; by controlling the tempering temperature, time and rapid cooling air pressure, the glass tempering process is ensured, thereby improving the physical and chemical properties of the glass.

[0035] Furthermore, in some embodiments, in step S2, the high-temperature UV transfer and curing process is as follows: first, high-temperature UV ink is printed on the front side of the glass using a 100-200 mesh screen; then, a flatbed texturing device is used to imprint the texture of the mold surface onto the printed coating; simultaneously, UV lamps are used for curing, with the lamp source being a UV-LED lamp with an energy of 400-1000 millijoules / square centimeter. The components of the high-temperature UV ink, by mass percentage, include 25%-35% ink thinner, 60%-70% glass powder, and 0.3%-0.5% initiator.

[0036] In this embodiment, high-temperature UV ink is used instead of ordinary low-temperature UV products, which solves the problems of poor high-temperature resistance, poor weather resistance, poor hardness, and poor adhesion of the front low-temperature UV products.

[0037] Furthermore, in some embodiments, the method for preparing a temperable micro / nano textured glass panel further includes the following steps:

[0038] S4. Clean the tempered glass panel from step S3, and use a 150-250 mesh screen to print a low-temperature colored topcoat on the back of the tempered glass; the heating temperature for low-temperature colored topcoat printing is 165-185℃, and the heating time is 6-8 minutes.

[0039] S5. After printing in step S4, seal the tempered glass with protective ink. Use a 100-500 mesh screen to print the protective ink onto the cured colored topcoat to obtain the tempered glass product. Figure 1 As shown; the heating temperature for printing the protective ink for the back cover is 180-200℃, and the heating time is 8-10 minutes.

[0040] In this embodiment, the colored paint layer and protective ink layer on the back of the tempered glass product can be processed according to the actual product requirements, or the tempered glass panel prepared in step S3 can be directly decorated and processed by other processes.

[0041] Secondly, this application provides a temperable micro-nano textured glass panel, which is prepared by the above-mentioned method for preparing temperable micro-nano textured glass panels. The temperable micro-nano textured glass panel has fine and rich textures, and the textured coating has high adhesion, high weather resistance, and excellent high temperature resistance.

[0042] The following are some specific embodiments. It should be noted that the embodiments described below are exemplary and are only used to explain this application, and should not be construed as limiting this application. Where specific techniques or conditions are not specified in the embodiments, they shall be performed in accordance with the techniques or conditions described in the literature in this field or according to the product instructions. Reagents or instruments whose manufacturers are not specified are all conventional products that can be obtained commercially.

[0043] Example 1

[0044] This embodiment provides a method for preparing a temperable micro / nano textured glass panel, including the following steps:

[0045] S1. Cutting, grinding, and cleaning the glass;

[0046] S2. High-temperature UV transfer and curing are performed on the cleaned glass front surface in step S1 to complete the texture production, and then the glass is cleaned at the edges. The high-temperature UV transfer and curing process is as follows: First, high-temperature UV ink is printed on the glass front surface using a 150-mesh screen. Then, the texture on the mold surface is pressed onto the printed coating using a flatbed texturing equipment. At the same time, it is cured by irradiation with a UV lamp (the lamp source is a UV-LED lamp with an energy of 500 millijoules / square centimeter). The components of the high-temperature UV ink include 32% ink oil, 67.5% glass powder and 0.5% initiator by mass percentage.

[0047] S3. The glass that has been cleaned in step S2 is heated to 500°C for smoke removal. The heating time is 120s and the smoke removal time is 100s. After the smoke removal is completed, the glass is put into a tempering furnace for tempering. The heating temperature is 680°C and the time is 100s. The rapid cooling air pressure is 95%, and a tempered glass panel with micro-nano texture is obtained.

[0048] S4. Clean the tempered glass panel from step S3, and use a 150-250 mesh screen to print a low-temperature colored topcoat on the back of the tempered glass. The heating temperature is 170℃ and the heating time is 6 minutes.

[0049] S5. After printing in step S4, seal the tempered glass with protective ink. Use a 300-mesh screen to print the protective ink on the cured colored topcoat. The heating temperature is 200℃ and the heating time is 10 minutes to obtain the tempered glass product.

[0050] Examples 2-4

[0051] Examples 2-4 disclose a method for preparing a temperable micro-nano textured glass panel. Compared with Example 1, the difference is that the parameters for smoke extraction and tempering in step S3 are different, as shown in Table 1. The rest are roughly the same as in Example 1, and will not be repeated here.

[0052] Comparative Examples 1-4

[0053] Comparative Examples 1 to 4 disclose a method for preparing a temperable micro-nano textured glass panel. The difference between the method and Example 1 is that the parameters for smoke extraction and tempering in step S3 are different, as shown in Table 1. The rest are roughly the same as Example 1 and will not be repeated here.

[0054] Table 1. Parameter settings for Examples 2-4 and Comparative Examples 1-4

[0055]

[0056]

[0057] Comparative Example 5

[0058] Comparative Example 5 discloses a method for preparing a temperable micro-nano textured glass panel. The difference from Example 1 is that smoke is not emitted in step S3. The rest is roughly the same as Example 1 and will not be repeated here.

[0059] The tempered glass products prepared in Examples 1-4 and Comparative Examples 1-5 were tested for relevant properties. Particle size refers to the number of fragments within a 50mm×50mm unit after the glass is broken. The results are shown in the table below. Tempered glass products with a transmittance of over 80%, a curvature of less than 0.3, and a particle size of 60-100 pieces are considered to have good performance.

[0060] Table 2. Properties of tempered glass in Examples 1-4 and Comparative Examples 1-5

[0061] Example 1 85％ 0.21％ 80 Example 2 80％ 0.16％ 72 Example 3 86％ 0.35％ 113 Example 4 87％ 0.47％ 134 Comparative Example 1 78％ 0.17％ 82 Comparative Example 2 85％ 0.33％ 87 Comparative Example 3 76％ 0.15％ 81 Comparative Example 4 85％ 0.21％ 80 Comparative Example 5 70％ 0.21％ 80

[0062] Table 2 shows that changes in tempering time and air pressure have a certain impact on the transparency, curvature, and particle size of tempered glass after breakage. Shorter tempering time affects the light transmittance, while lower air pressure increases the curvature, thus affecting the stability and safety of the tempered glass during use. Low exhaust heating temperature, insufficient time, or no exhaust heating will result in incomplete evaporation of organic solvents, reducing the transparency of the ink and thus affecting the light transmittance of the tempered glass. Excessive exhaust heating temperature will adversely affect the curvature of the glass, while excessive exhaust heating time will affect production efficiency and reduce economic benefits.

[0063] Comparative Example 6

[0064] Comparative Example 6 discloses a method for preparing a temperable micro-nano textured glass panel. The difference from Example 1 is that in step S2, a low-temperature UV product is used instead of a high-temperature UV ink, as shown in Table 1. The rest is roughly the same as Example 1 and will not be repeated here.

[0065] Comparative Example 7

[0066] Comparative Example 7 discloses a method for preparing a temperable micro-nano textured glass panel. Compared with Example 1, the difference is that in step S2, the composition and content of the high-temperature UV ink are 49.5% ink oil, 50% glass powder, and 0.5% initiator, as shown in Table 1. The rest are roughly the same as in Example 1 and will not be repeated here.

[0067] Comparative Example 8

[0068] Comparative Example 8 discloses a method for preparing a temperable micro-nano textured glass panel. Compared with Example 1, the difference is that in step S2, the composition and content of the high-temperature UV ink are as follows: ink oil ratio 19.5%, glass powder ratio 80%, and initiator ratio 0.5%, as shown in Table 1. The rest are roughly the same as in Example 1 and will not be repeated here.

[0069] Comparative Example 9

[0070] Comparative Example 9 discloses a method for preparing a temperable micro-nano textured glass panel. Compared with Example 1, the difference is that in step S2, the composition and content of the high-temperature UV ink are 30% ink oil, 69% glass powder, and 1% initiator, as shown in Table 1. The rest are roughly the same as in Example 1 and will not be repeated here.

[0071] The tempered glass products prepared in proportions 6 to 9 were tested for relevant properties, including separation, transparency, three-dimensionality, and physical and chemical properties (including a comprehensive evaluation of adhesion, hardness, and weather resistance). The results are shown in the table below.

[0072] Table 3. Performance of tempered glass in Comparative Examples 6–9

[0073] Comparative Example 6 good Good transparency Good three-dimensionality Difference Comparative Example 7 good Good transparency Poor three-dimensionality good Comparative Example 8 Difference Poor transparency Poor three-dimensionality good Comparative Example 9 good Poor transparency Poor three-dimensionality good

[0074] As shown in Table 3, when low-temperature UV products are applied to glass panel textures, there are problems with poor adhesion, hardness, and weather resistance. On the other hand, changes in the component ratio of high-temperature UV inks will affect the performance of tempered glass. Too much ink will reduce the three-dimensionality of the glass, while too much glass powder and too little ink will reduce the separation, transparency, and three-dimensionality of the tempered glass. Too much initiator will affect the transparency and three-dimensionality of the tempered glass.

[0075] It should be noted that this application is not limited to the above-described embodiments. The above embodiments are merely examples, and any embodiments with the same structure and effect as the technical concept within the scope of this application are included in the technical scope of this application. Furthermore, various modifications that can be conceived by those skilled in the art to the embodiments, and other ways of constructing by combining some of the constituent elements of the embodiments, without departing from the spirit of this application, are also included in the scope of this application.

Claims

1. A method for preparing a temperable micro / nano textured glass panel, characterized in that, Includes the following steps: S1. Cutting, grinding, and cleaning the glass; S2. Apply high-temperature UV ink transfer and curing to the front of the glass after cleaning in step S1 to complete the texture production, and then clean the edges of the glass. S3. The glass that has been cleaned in step S2 is heated to 400-500°C to remove smoke. After the smoke is removed, the glass is put into a tempering furnace for tempering to obtain a tempered glass panel with micro-nano texture. The high-temperature UV ink comprises, by mass percentage, 25%–35% ink oil, 60%–70% glass powder, and 0.3%–0.5% initiator.

2. The method for preparing a temperable micro / nano textured glass panel according to claim 1, characterized in that, In step S3, when venting smoke from the glass, the heating time is 100-300s and the smoke venting time is 50-150s.

3. The method for preparing a temperable micro / nano textured glass panel according to claim 1, characterized in that, In step S3, during glass tempering, the heating temperature is 680–700°C, the time is 80–300 s, and the quenching air pressure is 55%–95%.

4. The method for preparing a temperable micro / nano textured glass panel according to claim 1, characterized in that, In step S2, the process of high-temperature UV ink transfer and curing is as follows: first, high-temperature UV ink is printed on the front of the glass using a 100-200 mesh screen, then the texture of the mold surface is imprinted onto the printed coating using a flatbed texturing device, and simultaneously cured by UV irradiation.

5. The method for preparing a temperable micro / nano textured glass panel according to claim 1, characterized in that, The preparation method further includes the following steps: S4. Clean the tempered glass panel from step S3, and use a 150-250 mesh screen to print a low-temperature colored topcoat on the back of the tempered glass. S5. After the tempered glass printing in step S4 is completed, seal the bottom of the glass with protective ink by printing the protective ink on the cured colored topcoat using a 100-500 mesh screen to obtain the tempered glass product.

6. The method for preparing a temperable micro / nano textured glass panel according to claim 5, characterized in that, In step S4, the heating temperature for low-temperature colored topcoat printing is 165–185°C, and the heating time is 6–8 minutes.

7. The method for preparing a temperable micro / nano textured glass panel according to claim 5, characterized in that, In step S5, the heating temperature for printing the back cover protective ink is 180–200°C, and the heating time is 8–10 min.

8. The method for preparing a temperable micro / nano textured glass panel according to claim 4, characterized in that, The curing process uses UV-LED lamps with an energy of 400-1000 millijoules per square centimeter.

9. A temperable micro / nano textured glass panel, characterized in that, The temperable micro-nano textured glass panel is prepared using any one of claims 1 to 8.

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