Tempering micro-nano texture glass panel and preparation method thereof

Abstract

The invention provides a temperable micro-nano texture glass panel and a preparation method thereof, and belongs to the field of glass preparation.The preparation method comprises the steps that cutting, grinding and cleaning are conducted on glass, high-temperature UV transfer printing and curing are conducted on the front face of the glass, texture manufacturing is completed, heating, smoke exhausting and tempering are conducted on the glass after edge cleaning, and the temperable micro-nano texture glass panel is obtained. Finally, low-temperature colored finish paint printing and bottom sealing protection are conducted on the back face of the glass, and a glass product is obtained. According to the invention, the glass texture is manufactured by adopting high-temperature UV transfer printing, so that the problems that the texture of a low-temperature UV product is not resistant to high temperature, cannot adapt to a tempering process, affects the physical and chemical properties of the prepared tempered glass, and is poor in weather resistance and low in adhesive force are solved; the organic solvent is fully volatilized by matching with a smoke exhaust process, so that the printing ink is more transparent, the obtained glass surface texture is finer and richer than the common high-temperature printing ink silk-screen printing texture, and a new method is provided for tempered glass texture processing.

Description

Technical Field

[0001] The present invention relates to the technical field of glass preparation, and in particular to a temperable micro-nano textured glass panel and a preparation method thereof. Background Art

[0002] Tempered glass refers to glass with stress on the surface, also known as strengthened glass. Compared with ordinary glass, its strength, heat resistance and mechanical properties are significantly improved. Because of the presence of the high compressive stress layer, when the glass is subjected to external force, this compressive stress layer can offset part of the tensile stress and avoid the breakage of the glass. Therefore, the tempered glass technology has been fully promoted and popularized, and tempered glass is widely used in the fields of automobiles, construction, aviation, electronics, etc.

[0003] Tempered glass is obtained by cutting ordinary annealed glass into the required size, then heating it to a near softening point, and then cooling it quickly and evenly. At present, the processing methods for the surface texture or printing of tempered glass include acid etching, which is to apply glue with a pattern as a template on the surface of the tempered glass, and then apply acid etching liquid on the glue. The acid etching liquid can dissolve the glass outside the glue to form a pattern; sandblasting, which forms a rough texture by sandblasting on the glass surface, which is both beautiful and practical, and can also increase the safety performance of the tempered glass itself; laser engraving, which is a new method for processing textures of tempered glass. Its advantages are fast processing speed, high precision, and diversified patterns; embossing, which can form textured tempered glass by placing a texture template on the surface of the tempered glass, and then tempering the template and the glass together. Among the above processing methods, except for the embossing method, all require reprocessing of the tempered glass products. The process is complicated and easily affects the performance of the tempered glass itself. The embossing method tempers the template together with the glass, which will affect the tempering process parameters and effects of the glass.

[0004] In the prior art, there are studies that disclose using inorganic inks of Anmi Micro-Nano technology to apply a coating by screen printing (texture adjustable color overprinting), roller coating, spray coating or film thermal transfer before tempering the glass, and then tempering it in the furnace. However, the low-temperature UV transfer texture on the glass surface has problems such as poor high temperature resistance, poor weather resistance, poor hardness, and poor adhesion. Summary of the invention

[0005] In view of the technical problems existing in the background technology, the present application provides a tempered micro-nano textured glass panel and a preparation method thereof, aiming to solve the technical problems that the existing tempered glass texture is difficult to process, and the low-temperature UV transfer texture has poor high temperature resistance, poor weather resistance, poor hardness, and poor adhesion.

[0006] In a first aspect, an embodiment of the present application provides 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, performing high-temperature UV transfer and curing on the front surface of the glass cleaned in step S1 to complete the production of the texture, and then performing edge cleaning on the glass;

[0009] S3, heating the glass whose edges have been cleaned in step S2 to 400-500°C for smoke exhaust, and the glass after smoke exhaust is put into a tempering furnace for tempering to obtain a tempered glass panel with micro-nano texture.

[0010] In the technical solution of the embodiment of the present application, high-temperature UV transfer is used to produce glass textures, which solves the problem that low-temperature UV product textures are not resistant to high temperatures and cannot adapt to the tempering process, affecting the physical and chemical properties of the prepared tempered glass, and have poor weather resistance and low adhesion. In addition, before the glass texture is produced and tempered, the smoke exhaust process is used to fully volatilize the organic solvent, making the ink more transparent. The obtained glass surface texture is finer and richer than the ordinary high-temperature ink screen printing texture, providing a new method for tempered glass texture processing.

[0011] In some embodiments, in step S3, when exhausting smoke from the glass, the heating time is 100-300 seconds, the exhaust time is 50-150 seconds. When tempering the glass, the heating temperature is 680-700°C, the time is 80-300 seconds, and the quenching wind pressure is 55%-95%.

[0012] In this embodiment, by controlling the exhaust heating temperature, time and exhaust time, the organic solvent in the high-temperature UV ink can be fully volatilized, making the ink more transparent and the surface texture of the obtained glass clearer; by controlling the tempering temperature, time and rapid cooling wind pressure, the glass tempering process is guaranteed, thereby improving the performance of the glass.

[0013] In some embodiments, in step S2, the process of high-temperature UV transfer and curing is: first, high-temperature UV ink is printed on the front of the glass using a 100-200 mesh screen, and then the texture of the mold surface is imprinted onto the printed coating using a flat-plate texturing device, and then cured by ultraviolet light, and the light source used during curing is a UV-LED lamp with an energy of 400-1000 mJ / cm2. The components of the high-temperature UV ink include 25% to 35% of varnish, 60% to 70% of glass powder, and 0.3% to 0.5% of initiator by mass percentage.

[0014] In this embodiment, high-temperature UV ink is used to replace the common low-temperature UV product, which solves the problems of the front low-temperature UV product being not resistant to high temperatures, having poor weather resistance, poor hardness, and poor adhesion.

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

[0016] S4, cleaning the tempered glass panel of step S3, and printing low-temperature colored topcoat on the back of the tempered glass using a 150-250 mesh screen; the heating temperature during the low-temperature colored topcoat printing is 165-185° C., and the heating time is 6-8 minutes;

[0017] S5, performing bottom protection on the tempered glass after printing in step S4, using a 100-500 mesh screen to print bottom protection ink on the cured colored topcoat to obtain a tempered glass product; the heating temperature when printing the bottom protection ink is 180-200° C., and the heating time is 8-10 minutes.

[0018] In the second aspect, an embodiment of the present application provides a temperable micro-nano textured glass panel, which is prepared by the preparation method of a temperable micro-nano textured glass panel described in any one of the above-mentioned methods. The temperable micro-nano textured glass panel has the characteristics of fine and rich texture, high adhesion of the texture coating, high weather resistance, and excellent high temperature resistance.

[0019] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solution of the present application, the following is a brief introduction to the drawings used in the present application. Obviously, the drawings described below are only some embodiments of the present application, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 This is a schematic diagram of the structure of the tempered glass product in the embodiment of the present application. DETAILED DESCRIPTION

[0022] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0024] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0025] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0026] In the prior art, the surface texture or printing processing technology of tempered glass is often complicated and easily affects the performance of the tempered glass itself, affecting the tempering process parameters and effects of the glass. Some studies have used inorganic inks of Anmi Micro-Nano Technology to apply a coating by screen printing (texture adjustable color overprinting), roller coating, spraying or film thermal transfer before tempering the glass, and then tempering it in the furnace. However, the low-temperature UV transfer texture on the glass surface has problems such as poor high temperature resistance, poor weather resistance, poor hardness, and poor adhesion.

[0027] In order to solve the technical problems that the existing tempered glass texture is difficult to process, and the low-temperature UV transfer texture has poor high temperature resistance, poor weather resistance, poor hardness, and poor adhesion, the present application provides a temperable micro-nano texture glass panel and a preparation method thereof, wherein, by adopting high-temperature UV transfer to produce glass texture, the problem that the low-temperature UV product texture is not resistant to high temperatures, cannot adapt to the tempering process, affects the physical and chemical properties of the prepared tempered glass, and has poor weather resistance and low adhesion is solved. In addition, before the glass texture is produced and tempered, the smoke exhaust process is used to fully volatilize the organic solvent, making the ink more transparent, and the obtained glass surface texture is finer and richer than the ordinary high-temperature ink screen printing texture, providing a new method for tempered glass texture processing. The prepared temperable micro-nano texture glass panel has the characteristics of fine and rich texture, and the texture coating has high adhesion, high weather resistance, and excellent high temperature resistance.

[0028] For the convenience of description, the following embodiments are described by taking a method for preparing a tempered micro-nano textured glass panel according to an embodiment of the present application as an example. The preparation method comprises the following steps:

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

[0030] S2, performing high-temperature UV transfer and curing on the front surface of the glass cleaned in step S1 to complete the production of the texture, and then performing edge cleaning on the glass;

[0031] S3, heating the glass whose edges have been cleaned in step S2 to 400-500°C for smoke exhaust, and the glass after smoke exhaust is put into a tempering furnace for tempering to obtain a tempered glass panel with micro-nano texture.

[0032] In the technical solution of the embodiment of the present application, high-temperature UV transfer is used to produce glass textures, which solves the problem that low-temperature UV product textures are not resistant to high temperatures and cannot adapt to the tempering process, affecting the physical and chemical properties of the prepared tempered glass, and have poor weather resistance and low adhesion. In addition, before the glass texture is produced and tempered, the smoke exhaust process is used to fully volatilize the organic solvent, making the ink more transparent. The resulting glass surface texture is finer and richer than the ordinary high-temperature ink screen printing texture, providing a new method for tempered glass texture processing.

[0033] Furthermore, in some embodiments, in step S3, when exhausting smoke from the glass, the heating time is 100-300 seconds, the exhaust time is 50-150 seconds. When tempering the glass, the heating temperature is 680-700°C, the time is 80-300 seconds, and the quenching wind pressure is 55%-95%.

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

[0035] Further, in some embodiments, in step S2, the process of high temperature UV transfer and curing is: firstly, high temperature UV ink is printed on the front of the glass using a 100-200 mesh screen, and then the texture of the mold surface is imprinted onto the printed coating using a flat pattern making device, and then cured by ultraviolet light, and the light source used during curing is a UV-LED lamp with an energy of 400-1000 mJ / cm2. The components of the high temperature UV ink include 25% to 35% of varnish, 60% to 70% of glass powder and 0.3% to 0.5% of initiator by mass percentage.

[0036] In this embodiment, high-temperature UV ink is used to replace the common low-temperature UV product, which solves the problems of the front low-temperature UV product being not resistant to high temperatures, having poor weather resistance, poor hardness, and poor adhesion.

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

[0038] S4, cleaning the tempered glass panel of step S3, and printing low-temperature colored topcoat on the back of the tempered glass using a 150-250 mesh screen; the heating temperature during the low-temperature colored topcoat printing is 165-185° C., and the heating time is 6-8 minutes;

[0039] S5, performing back cover protection on the tempered glass after printing in step S4, using a 100-500 mesh screen to print back cover protection ink on the cured colored topcoat to obtain a tempered glass product, such as Figure 1 As shown; the heating temperature when printing the back cover protection ink is 180-200°C, and the heating time is 8-10 minutes.

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

[0041] In the second aspect, an embodiment of the present application provides a temperable micro-nano textured glass panel, which is prepared by the above-mentioned method for preparing a temperable micro-nano textured glass panel. The temperable micro-nano textured glass panel has the characteristics of fine and rich texture, high adhesion of the texture coating, high weather resistance, and excellent high temperature resistance.

[0042] Some specific embodiments are listed below. It should be noted that the embodiments described below are exemplary and are only used to explain the present application, and should not be construed as limiting the present application. If specific techniques or conditions are not specified in the embodiments, the techniques or conditions described in the literature in this area or the product specifications are used. The reagents or instruments used without specifying the manufacturer 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, comprising the following steps:

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

[0046] S2, performing high-temperature UV transfer and curing on the front of the glass cleaned in step S1 to complete the production of the texture, and then performing edge cleaning on the glass; wherein, the process of high-temperature UV transfer and curing is: firstly, using a 150-mesh screen to print high-temperature UV ink on the front of the glass, and then using a flat-plate texturing device to emboss the texture on the surface of the mold onto the printed coating, and simultaneously using an ultraviolet lamp (the light source is a UV-LED lamp with an energy of 500 mJ / cm2) for irradiation and curing, wherein the components of the high-temperature UV ink include 32% of varnish, 67.5% of glass powder and 0.5% of initiator by mass percentage;

[0047] S3, heating the glass after edge cleaning in step S2 to 500°C for smoke exhaust, the heating time is 120s, the smoke exhaust time is 100s, and the glass after smoke exhaust is put into a tempering furnace for tempering, the heating temperature is 680°C, the time is 100s, and the rapid cooling wind pressure is 95%, so as to obtain a tempered glass panel with micro-nano texture;

[0048] S4, cleaning the tempered glass panel of step S3, and printing low-temperature colored topcoat on the back of the tempered glass using a 150-250 mesh screen, with a heating temperature of 170° C. and a heating time of 6 minutes;

[0049] S5. Performing bottom protection on the tempered glass after printing in step S4, using a 300-mesh screen to print bottom protection ink on the cured colored topcoat, heating at 200° C. for 10 minutes, to obtain a tempered glass product.

[0050] Embodiments 2 to 4

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

[0052] Comparative Examples 1 to 4

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

[0054] Table 1 Parameter settings of Examples 2 to 4 and Comparative Examples 1 to 4

[0055]

[0056]

[0057] Comparative Example 5

[0058] Comparative Example 5 discloses a method for preparing a temperable micro-nano textured glass panel. Compared with Example 1, the difference is that in step S3, smoke exhaust is not performed, and the rest is substantially the same as Example 1, which will not be repeated here.

[0059] The tempered glass products prepared in Examples 1 to 4 and Comparative Examples 1 to 5 were tested for relevant properties, wherein the particle size refers to the number of fragments within a unit of 50 mm×50 mm after the glass is broken. The results are shown in the following table; the tempered glass products with a transparency of more than 80%, a curvature of less than 0.3, and a particle size of 60 to 100 particles are relatively good in performance.

[0060] Table 2 Properties of tempered glass of Examples 1 to 4 and Comparative Examples 1 to 5

[0061] Transparency / % Curvature / % Particle size / particle 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] As shown in Table 2, changes in tempering time and wind pressure will have a certain impact on the transmittance, curvature and particle size of tempered glass after breaking. Short tempering time affects the transmittance of tempered glass, and reduced wind pressure increases the curvature of tempered glass, which in turn affects the stability and safety of tempered glass during use. When the exhaust heating temperature is low, the time is too short, or there is no exhaust, the organic solvent will not evaporate fully, which will reduce the permeability of the ink and affect the transmittance of the tempered glass. Excessive exhaust heating temperature will have an adverse effect on the curvature of the glass, and too long 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. Compared with Example 1, the difference 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 tempered 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% of varnish, 50% of glass powder, and 0.5% of initiator, as shown in Table 1. The rest is roughly the same as Example 1 and will not be repeated here.

[0067] Comparative Example 8

[0068] Comparative Example 8 discloses a method for preparing a tempered 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 19.5% of varnish, 80% of glass powder, and 0.5% of initiator, as shown in Table 1. The rest is roughly the same as Example 1 and will not be repeated here.

[0069] Comparative Example 9

[0070] Comparative Example 9 discloses a method for preparing a tempered 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% of varnish oil, 69% of glass powder, and 1% of initiator, as shown in Table 1. The rest is roughly the same as Example 1 and will not be repeated here.

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

[0072] Table 3 Properties of tempered glass of comparative examples 6 to 9

[0073] Separability Transparency Three-dimensional Physical and chemical properties Comparative Example 6 good Good transparency Good three-dimensional effect Difference Comparative Example 7 good Good transparency Poor stereoscopic effect good Comparative Example 8 Difference Poor transparency Poor stereoscopic effect good Comparative Example 9 good Poor transparency Poor stereoscopic effect good

[0074] It can be seen from Table 3 that when low-temperature UV products are applied to glass panel textures, there are problems with poor adhesion, hardness and weather resistance; and changes in the component proportions of high-temperature UV inks will change the performance of tempered glass. Too much varnish will deteriorate the three-dimensional effect of the glass. Too much glass powder and too little varnish will deteriorate the separation, transparency and three-dimensional effect of the tempered glass. Too much initiator will affect the transparency and three-dimensional effect of the tempered glass.

[0075] It should be noted that the present application is not limited to the above-mentioned embodiments. The above-mentioned embodiments are only examples, and the embodiments having the same structure as the technical idea and exerting the same effect within the scope of the technical solution of the present application are all included in the technical scope of the present application. In addition, without departing from the scope of the main purpose of the present application, various modifications that can be thought of by those skilled in the art to the embodiments and other methods of combining some of the constituent elements in the embodiments are also included in the scope of the present application.

Claims

1. A method for preparing a temperable micro-nano textured glass panel, characterized in that: The following steps are involved: S1. Cutting, grinding and cleaning the glass; S2, performing high-temperature UV transfer and curing on the front surface of the glass cleaned in step S1 to complete the production of the texture, and then performing edge cleaning on the glass; S3, heating the glass whose edges have been cleaned in step S2 to 400-500°C for smoke exhaust, and the glass after smoke exhaust is put into a tempering furnace for tempering to obtain a tempered glass panel with micro-nano texture.

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

3. The method for preparing a temperable micro-nano textured glass panel according to claim 1, characterized in that: In step S3, when the glass is tempered, the heating temperature is 680-700°C, the time is 80-300s, and the rapid cooling 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 transfer and curing is: first, high-temperature UV ink is printed on the front of the glass using a 100-200 mesh screen, and then the texture of the mold surface is pressed onto the printed coating using a flat-bed texturing device, and then cured using ultraviolet light.

5. The method for preparing a temperable micro-nano textured glass panel according to claim 4, characterized in that: The components of the high-temperature UV ink include, by mass percentage, 25% to 35% of varnish, 60% to 70% of glass powder and 0.3% to 0.5% of initiator.

6. The method for preparing a temperable micro-nano textured glass panel according to claim 1, characterized in that: The preparation method further comprises the following steps: S4, cleaning the tempered glass panel of step S3, and printing low-temperature colored topcoat on the back of the tempered glass using a 150-250 mesh screen; S5, performing bottom cover protection on the tempered glass after printing in step S4, using a 100-500 mesh screen to print bottom cover protection ink on the cured colored topcoat to obtain a tempered glass product.

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

8. The method for preparing a temperable micro-nano textured glass panel according to claim 6, characterized in that: In step S5, the heating temperature when printing the back cover protection ink is 180-200°C, and the heating time is 8-10 minutes.

9. The method for preparing a temperable micro-nano textured glass panel according to claim 4, characterized in that: The light source used for curing is a UV-LED lamp with an energy of 400-1000 mJ / cm2.

10. A temperable micro-nano textured glass panel, characterized in that: The glass panel is prepared by the method for preparing a temperable micro-nano textured glass panel according to any one of claims 1 to 9.

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