Textured glass panel based on surface hot-pressing film forming and preparation method thereof

Abstract

The invention provides a textured glass panel based on surface hot-pressing film forming and a preparation method thereof, and belongs to the field of textured glass panels, an adhesive film layer mainly plays a role in connecting a glass substrate and an outer film layer, and the outer film layer is used for isolating a pattern mold from the adhesive film layer and preventing the pattern mold from being adhered to the adhesive film layer after vacuum hot-pressing, so that the texture glass panel is formed. Meanwhile, the film can be used as an appearance protective film of a glass panel; the textured glass panel based on surface hot-pressing film molding, which has a clear texture structure on the surface, and is stable in consistency and good in overall performance and texture aesthetic property, is prepared through an integral molding process by selecting appropriate types of outer film layers and adhesive film layers and matching with parameter setting of a vacuum hot-pressing process. Compared with the traditional process of attaching the finished pattern film to the glass, the textured glass panel disclosed by the invention is simple in preparation process, free of glue, environment-friendly, low in product cost and more beneficial to industrial continuous production.

Description

Technical Field

[0001] The present invention relates to the technical field of textured glass panels, and particularly to a textured glass panel based on surface hot-pressing film forming and a preparation method thereof. Background Art

[0002] Due to its high light transmittance, high wear resistance, high heat resistance, and excellent hardness, glass panels are suitable for a variety of environments and application scenarios; with the development of intelligent manufacturing technology, glass panels have become the main trend in the intelligent terminal industry. Therefore, in addition to the requirements for the inherent physical and chemical properties of glass panels, glass panels are also required to have rich textures to meet the needs of products with high appearance requirements.

[0003] Currently, the texture decoration processes of glass panels are mostly achieved by machine grinding, etching textures, laser engraving, and film decoration. Among them, machine grinding can produce different-shaped textures on the glass surface, such as lines, dots, meshes, etc., and can also achieve mass production; however, the cost of machine grinding is relatively high, and the processing accuracy is easily affected by environmental factors, resulting in defects on the glass surface. Etching textures are formed by chemical etching solutions to produce minute concavities and convexities on the glass surface to form the desired texture effects. However, the etching process requires yellow light, HF solution etching, etc., which is not environmentally friendly, and the etched texture lines are prone to being discontinuous, and the etching rate is difficult to control, resulting in low applicability. Laser engraving can achieve very fine texture effects and has high controllability, and various shapes and patterns can be engraved on the glass surface; however, laser engraving usually requires a long processing time and requires high-precision equipment and technology, greatly increasing the preparation cost of glass panels.

[0004] The existing film decoration process has the advantages of beauty and the flowing of light and shadow under the cooperation of light, and the process is simple and easy to implement. A certain patented technology discloses a decorative glass structure. A glass material is coated with an adhesive layer, and then a pattern is printed on the adhesive layer. The pattern printing is tightly adhered through the adhesive interface, and then a protective film layer is covered to increase the wear resistance of the pattern. This method pastes the finished pattern film on the glass with glue, increasing the complexity of the preparation process. Bubbles or unevenness and poor flatness are likely to occur during the pasting process, resulting in poor integrity between the pattern texture and the glass panel, and affecting the beauty and subsequent use performance of the glass panel texture. Summary of the Invention

[0005] In view of the technical problems existing in the background art, the present application provides a textured glass panel based on surface hot-pressing film forming and a preparation method thereof, aiming to solve the technical problems of the complex texture process, poor integrity and beauty of existing glass panels.

[0006] In a first aspect, an embodiment of the present application provides a method for preparing a textured glass panel based on surface hot-pressing film forming, including the following steps:

[0007] S1. Stack and align a glass substrate, a glue film layer, and an outer film layer in sequence, and place a pattern mold on the outer film layer. The pattern layer of the pattern mold is in contact with the outer film layer to obtain a glass panel layer structure to be processed;

[0008] S2. Vacuum hot-press the glass panel layer structure obtained in step S1 at a temperature of 100-160°C, a pressure of 0.2-0.6 MPa, and a time of 10-20 min to obtain a textured glass panel based on surface hot-pressing film forming.

[0009] In the technical solution of the embodiment of the present application, by selecting appropriate types of outer film layer and glue film layer, and cooperating with the parameter setting of the vacuum hot-pressing process, a textured glass panel based on surface hot-pressing film forming with a clear texture structure on the surface, good overall performance and aesthetics is prepared through an integral forming process; compared with the traditional process of attaching a finished pattern film to glass, the preparation process of the textured glass panel of the present invention is simple, does not require the use of glue, is environmentally friendly, has low product cost, stable consistency, and is more conducive to industrial continuous production, and has good industrial application prospects.

[0010] In some embodiments, in step S1, the softening point temperature of the outer film layer is 100-160°C. The material of the outer film layer includes one of polyethylene terephthalate, polyvinyl chloride, polypropylene, thermoplastic polyurethane, polycarbonate, and polyethylene. The heat distortion temperature of the pattern mold is not lower than 170°C.

[0011] In this embodiment, by selecting an outer film layer with a softening point temperature in the range of 100-160°C, it is ensured that during the vacuum hot-pressing process, the pattern on the pattern mold is successfully transferred to the outer film layer, and the vacuum hot-pressing is carried out at a lower temperature, avoiding adverse effects on the physical and chemical properties of the glass substrate, and further affecting the use performance of the glass panel. The heat distortion temperature of the pattern mold is limited to avoid its deformation during the vacuum hot-pressing process, affecting the formation and clarity of the texture of the glass panel.

[0012] In some embodiments, the thickness of the outer film layer is 0.1 mm-1 mm, and the thickness of the glue film layer is 0.1 mm-3 mm.

[0013] In this embodiment, by limiting the thickness of the outer film layer, the texture formed on the outer film layer has a certain depth. At the same time, it can isolate the pattern mold from the adhesive film layer, prevent the two from sticking together after hot pressing, and can also act as a protective film with a certain hardness and stain resistance. In addition, it avoids the excessive thickness of the outer film layer from affecting the use performance of the glass panel. By limiting the thickness of the adhesive film layer, on the basis of connecting the glass substrate and the outer film layer, it avoids the excessive thickness of the adhesive film layer from affecting the light transmittance and overall performance of the glass panel.

[0014] In some embodiments, in step S1, the softening temperature of the adhesive film layer is 40 - 80°C. The material of the adhesive film layer includes one of ethylene-vinyl acetate copolymer, polyolefin, and polyvinyl butyral.

[0015] In this embodiment, the low softening temperature of the adhesive film layer enables it to better bond the glass substrate and the outer film layer during vacuum hot pressing.

[0016] In some embodiments, in step S2, the process of the vacuum hot pressing is to first keep the glass panel layer structure to be processed in a vacuum environment for 1 - 8 minutes, and then perform the hot pressing forming process. The vacuum degree of the vacuum environment is 50 - 200 Pa.

[0017] In this embodiment, before hot pressing each layer structure of the glass panel, keeping it in a vacuum environment for a period of time is beneficial to exhausting the gas impurities between the layers and inside the adhesive film layer, and avoiding problems such as bulging and blistering inside the film layer after hot pressing, which affect the flatness and aesthetics of the texture of the glass panel.

[0018] In some embodiments, in step S1, the thickness of the glass substrate is 0.1 mm - 12 mm, the Mohs hardness is 5 - 7, and the type of the glass substrate is one of float glass, hot rolled glass, high-aluminum glass, microcrystalline glass, and borosilicate glass.

[0019] In a second aspect, an embodiment of the present application provides a textured glass panel formed by surface hot pressing film, which is prepared by the preparation method of the textured glass panel formed by surface hot pressing film according to any one of the above. The textured glass panel formed by surface hot pressing film includes a glass substrate, an adhesive film layer, and an outer film layer stacked in sequence, and the surface of the outer film layer has a texture with a concave-convex depth of 0.5 mm - 2 mm.

[0020] The textured glass panel prepared by the technical solution of the embodiment of the present application has the advantages of low product cost, stable consistency, good integrity, excellent comprehensive physical and chemical properties, and high texture aesthetics.

[0021] The above description is only an overview of the technical solution of the present application. In order to better understand the technical means of the present application, it can be implemented according to the content of the specification. And in order to make the above and other purposes, features and advantages of the present application more obvious and understandable, the specific embodiments of the present application are specifically described below. Brief Description of the Drawings

[0022] In order to more clearly illustrate the technical solution of the present application, the drawings used in the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0023] Figure 1 It is a schematic diagram of each layer structure in the preparation method of the textured glass panel based on surface hot pressing film forming in the embodiment of the present application;

[0024] Figure 2 It is a physical diagram of the textured glass panel based on surface hot pressing film forming prepared in Embodiment 1 of the present application;

[0025] Description of the reference numerals: 100 - textured glass panel based on surface hot pressing film forming; 110 - glass substrate; 120 - adhesive film layer; 130 - outer film layer; 200 - pattern mold. Detailed Description of the Embodiments

[0026] The embodiments of the technical solution of the present application will be described in detail below with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, so they are only examples and cannot be used to limit the protection scope of the present application.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the present application; the terms "including" and "having" and any variations thereof in the specification and claims of the present application and the above description of the drawings are intended to cover non-exclusive inclusion.

[0028] Reference to "embodiment" herein means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0029] In the description of the embodiments of the present application, the term "and / or" is merely a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this article generally represents an "or" relationship between the associated objects before and after.

[0030] In the description of the embodiments of the present application, the orientation or positional relationship indicated by technical terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the embodiments of the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0031] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may also be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0032] Currently, the texture decoration process of glass panels is mostly achieved by methods such as machine grinding, etching texture, laser engraving, and film decoration. Each of the methods of machine grinding, etching texture, and laser engraving has its own advantages and disadvantages, mainly having problems such as high cost and complex process. The existing film decoration process has the advantages of beauty and the flow of light and shadow under the cooperation of light, and the process is simple and easy to implement. A certain patented technology discloses a pattern-colored glass structure, where an adhesive layer is applied to the glass material, and then pattern patterns are printed on the adhesive layer. Through the adhesive interface, the pattern printing is tightly adhered, and then a protective film layer is covered to increase the wear resistance of the pattern. This method pastes the finished pattern film on the glass with glue, increasing the complexity of the preparation process. Bubbles or unevenness and poor flatness are likely to occur during the pasting process, resulting in poor integrity between the pattern texture and the glass panel, and affecting the beauty and subsequent use performance of the glass panel texture.

[0033] In order to solve the technical problems of the complex texture process of the existing glass panel, poor integrity and aesthetics of the product, the present application provides a texture glass panel based on surface hot pressing film forming and a preparation method thereof. Among them, the preparation method selects appropriate types of outer film layers and adhesive film layers, cooperates with the parameter setting of the vacuum hot pressing process, and through an integral forming process, obtains a texture glass panel based on surface hot pressing film forming with a clear texture structure, good overall performance and aesthetics on the surface; compared with the traditional process of attaching a finished pattern film to the glass, the preparation process of the texture glass panel of the present invention is simple, does not require the use of glue, is environmentally friendly, has low product cost, stable consistency, and is more conducive to industrial continuous production.

[0034] For the convenience of description, the following examples are described by taking the preparation method of a texture glass panel based on surface hot pressing film forming in an embodiment of the present application as an example.

[0035] Please refer to Figure 1 As shown, in the first aspect, the embodiment of the present application provides a preparation method of a texture glass panel 100 based on surface hot pressing film forming, including the following steps:

[0036] S1. Stack and align a glass substrate 110, an adhesive film layer 120, and an outer film layer 130 in sequence, and continue to place a pattern mold 200 on the outer film layer 130, and the pattern layer of the pattern mold 200 is in contact with the outer film layer 130 to obtain a glass panel layer structure to be processed;

[0037] S2. Vacuum hot press the glass panel layer structure to be processed obtained in step S1 at a temperature of 100 - 160 °C, a pressure of 0.2 - 0.6 MPa, and a time of 10 - 20 min to obtain the texture glass panel 100 based on surface hot pressing film forming.

[0038] In the technical solution of the embodiment of the present application, by selecting appropriate types of outer film layer 130 and adhesive film layer 120, cooperating with the parameter setting of the vacuum hot pressing process, and through an integral forming process, a texture glass panel 100 based on surface hot pressing film forming with a clear texture structure, good overall performance and aesthetics on the surface is obtained. Among them, the adhesive film layer 120 mainly plays a role in connecting the glass substrate 110 and the outer film layer 130, and the outer film layer 130 is used to isolate the pattern mold 200 and the adhesive film layer 120 to prevent the two from sticking after vacuum hot pressing. At the same time, it can be used as an appearance protection film for the glass panel, having certain hardness and stain resistance. Compared with the traditional process of attaching a finished pattern film to the glass, the preparation process of the texture glass panel of the present invention is simple, does not require the use of glue, is environmentally friendly, has low product cost, stable consistency, and is more conducive to industrial continuous production, and has good industrial application prospects.

[0039] Further, in some embodiments, in step S1, the softening point temperature of the outer film layer 130 is 100 to 160 °C. The material of the outer film layer 130 includes one of polyethylene terephthalate (PET), polyvinyl chloride (PVC), polypropylene (PP), thermoplastic polyurethane (TPU), polycarbonate (PC), and polyethylene (PE). The heat distortion temperature of the pattern die 200 is not lower than 170 °C.

[0040] In the technical solution of the embodiment of the present application, by selecting the outer film layer 130 with a softening point temperature in the range of 100 to 160 °C, it is ensured that during the vacuum hot pressing process, the pattern on the pattern die 200 is successfully transferred to the outer film layer 130, and the vacuum hot pressing is carried out at a lower temperature, avoiding adverse effects on the physical and chemical properties of the glass substrate 110 and thus affecting the use performance of the glass panel. In addition, by limiting the heat distortion temperature of the pattern die 200, its deformation during the vacuum hot pressing process is avoided, affecting the formation and clarity of the texture.

[0041] Further, in some embodiments, the thickness of the outer film layer 130 is 0.1 mm to 1 mm, and the thickness of the adhesive film layer 120 is 0.1 mm to 3 mm.

[0042] In the technical solution of the embodiment of the present application, by limiting the thickness of the outer film layer 130, the texture formed on the outer film layer 130 has a certain depth, and at the same time, it can isolate the pattern die 200 from the adhesive film layer 120, preventing the two from sticking together after hot pressing, and it can also be used as a protective film with a certain hardness and stain resistance; in addition, it avoids the excessive thickness of the outer film layer 130 from affecting the use performance of the glass panel. By limiting the thickness of the adhesive film layer 120, on the basis of connecting the glass substrate 110 and the outer film layer 130, it avoids its excessive thickness from affecting the light transmittance and overall performance of the glass panel.

[0043] Further, in some embodiments, in step S1, the softening temperature of the adhesive film layer 120 is 40 to 80 °C. The material of the adhesive film layer 120 includes one of ethylene-vinyl acetate copolymer (EVA), polyolefin (POE), and polyvinyl butyral (PVB).

[0044] In this embodiment, the low softening temperature of the adhesive film layer 120 enables it to better play the role of bonding the glass substrate 110 and the outer film layer 130 during vacuum hot pressing.

[0045] Further, in some embodiments, in step S2, the process of vacuum hot pressing is to first keep the glass panel layer structure to be processed in a vacuum environment for 1 to 8 minutes, and then perform a hot pressing forming process, and the vacuum degree of the vacuum environment is 50 to 200 Pa.

[0046] In this embodiment, before hot pressing each layer structure of the glass panel, it is maintained in a vacuum environment for a period of time, which is beneficial to exhausting the gas impurities between the layers and inside the adhesive film layer 120, and avoiding problems such as bulging and blistering inside the film layer after hot pressing, which affect the flatness and aesthetics of the glass panel texture.

[0047] Further, in some embodiments, in step S1, the thickness of the glass substrate 110 is 0.1 mm to 12 mm, the Mohs hardness is 5 to 7, and the type of the glass substrate 110 is one of float, hot rolling, high-aluminum, microcrystalline, and borosilicate glass.

[0048] Second, the embodiment of the present application provides a texture glass panel 100 formed by surface hot pressing film, which is prepared by the preparation method of the texture glass panel formed by surface hot pressing film. The texture glass panel 100 formed by surface hot pressing film includes a glass substrate 110, an adhesive film layer 120, and an outer film layer 130 stacked in sequence, and the surface of the outer film layer 130 has a texture with an uneven depth of 0.5 mm to 2 mm.

[0049] The texture glass panel prepared by the technical solution of the embodiment of the present application has the advantages of low product cost, stable consistency, good integrity, excellent comprehensive physical and chemical properties, and high texture aesthetics.

[0050] The following lists some specific embodiments. 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 a limitation to the present application. For those not specified in the embodiments regarding specific technologies or conditions, they shall be carried out according to the technologies or conditions described in the literature in the field or according to the product specifications. For reagents or instruments not specified by the manufacturer, they are all conventional products that can be obtained through commercial purchase.

[0051] Example 1

[0052] This embodiment provides a preparation method of a texture glass panel formed by surface hot pressing film, including the following steps:

[0053] S1. Stack and align a glass substrate (float tempered glass substrate), an adhesive film layer (EVA), and an outer film layer (PET) in sequence, and continue to place a pattern mold (steel mold) on the outer film layer. The pattern layer of the pattern mold is in contact with the outer film layer to obtain the layer structure of the glass panel to be processed; the thickness of the outer film layer is 0.5 mm, and the thickness of the adhesive film layer is 1.5 mm;

[0054] S2. Vacuum hot press the glass panel layer structure obtained in step S1 at a temperature of 120°C, a pressure of 0.4 MPa, and a time of 15 min. The process of vacuum hot press is to keep the glass panel layer structure to be processed in a vacuum environment for 5 min first, and then perform the hot pressing forming process. The vacuum degree of the vacuum environment is 100 Pa, and the textured glass panel formed based on the surface hot press film is obtained.

[0055] Please refer to Figure 2 As shown, it is a physical picture of the textured glass panel formed based on the surface hot press film prepared in Example 1. It can be seen that the texture of this textured glass panel is clear and uniform, without blistering problems, with good integrity and stable consistency.

[0056] Example 2

[0057] This example provides a preparation method of a textured glass panel formed based on the surface hot press film. Compared with Example 1, the difference is that in step S1, the adhesive film layer is a PVB material film, and the outer film layer is a PVC material film. The rest is roughly the same as Example 1 and will not be elaborated here.

[0058] Example 3

[0059] This example provides a preparation method of a textured glass panel formed based on the surface hot press film. Compared with Example 1, the difference is that in step S1, the adhesive film layer is an EVA material film, and the outer film layer is a PC material film. This will not be elaborated here.

[0060] Example 4

[0061] This example provides a preparation method of a textured glass panel formed based on the surface hot press film. Compared with Example 1, the difference is that in step S2, the glass panel layer structure to be processed is not kept in a vacuum environment, and the hot pressing forming process is directly carried out. This will not be elaborated here.

[0062] Comparative Example 1

[0063] Comparative Example 1 provides a preparation method of a textured glass panel. Compared with Example 1, the difference is that the vacuum hot press in step S2 is not carried out, and the outer film layer containing the texture structure is directly pasted to the glass substrate with glue. This will not be elaborated here.

[0064] The textured glass panels prepared in Examples 1 - 4 and Comparative Example 1 were subjected to relevant performance tests, and the results are shown in the following table.

[0065] Table 1 Performance characterization of the textured glass panels of Examples 1 - 4 and Comparative Example 1

[0066] Glass transmittance (%) Peeling strength (N / CM) Example 1 73～78 72 Example 2 76～83 64 Example 3 81～84 48 Example 4 59～61 17 Comparative Example 1 55～59 21

[0067] As can be seen from Table 1, in Examples 1 to 3, suitable types of outer film layer and adhesive film layer materials were selected and combined with the vacuum hot pressing process to obtain a textured glass panel with a clear texture structure on the surface, good overall performance and aesthetics. It can be seen from Example 4 that when the layer structure of the glass panel to be treated was not maintained in a vacuum environment, gas impurities were likely to exist between the layers, affecting the light transmittance and peeling strength of the obtained glass panel. It can be seen from Comparative Example 1 that when the outer film layer containing a texture structure was directly pasted on the glass substrate with glue, the light transmittance and glass strength of the obtained glass panel were both poor.

[0068] Comparative Example 2

[0069] Comparative Example 2 provides a method for preparing a glass panel. Compared with Example 1, the difference lies in that in step S2, the temperature of the vacuum hot pressing is 80 °C, which will not be elaborated here.

[0070] Comparative Example 3

[0071] Comparative Example 3 provides a method for preparing a glass panel. Compared with Example 1, the difference lies in that in step S2, the temperature of the vacuum hot pressing is 180 °C, which will not be elaborated here.

[0072] Comparative Example 4

[0073] Comparative Example 4 provides a method for preparing a textured glass panel based on surface hot pressing film forming. Compared with Example 1, the difference lies in that in step S2, the pressure of the vacuum hot pressing is 0.1 MPa, which will not be elaborated here.

[0074] Comparative Example 5

[0075] Comparative Example 5 provides a method for preparing a textured glass panel based on surface hot pressing film forming. Compared with Example 1, the difference lies in that in step S2, the pressure of the vacuum hot pressing is 0.8 MPa, which will not be elaborated here.

[0076] Comparative Example 6

[0077] Comparative Example 6 provides a method for preparing a glass panel. Compared with Example 1, the difference lies in that in step S2, the time of the vacuum hot pressing is 5 min, which will not be elaborated here.

[0078] Comparative Example 7

[0079] Comparative Example 7 provides a method for preparing a textured glass panel based on surface hot pressing film forming. Compared with Example 1, the difference lies in that in step S2, the time of the vacuum hot pressing is 30 min, which will not be elaborated here.

[0080] The textured glass panels prepared in Comparative Examples 2 to 7 were subjected to relevant performance tests, and the results are shown in the following table.

[0081] Performance Characterization of Textured Glass Panels in Comparative Examples 2 - 7

[0082]

[0083]

[0084] As can be seen from Table 2, when the temperature of vacuum hot pressing in Comparative Example 2 is relatively low, no connection is formed between the layers of the glass panel, and no texture is formed on the surface of the outer film layer, so a textured glass panel cannot be obtained; when the temperature of vacuum hot pressing in Comparative Example 3 is relatively high, the adhesive film layer and the outer film layer soften and shrink, and no texture can be formed, so a textured glass panel cannot be obtained either. When the vacuum hot pressing pressure in Comparative Example 4 is relatively low, the peeling strength of the obtained textured glass panel is poor and the texture is shallow. When the vacuum hot pressing time in Comparative Example 6 is insufficient, no adhesion force is formed between the glass substrate and the outer film layer because the adhesive film layer does not melt, so a textured glass panel cannot be obtained; when the vacuum hot pressing pressure in Comparative Example 5 is relatively high, although it will not affect the peeling strength and appearance of the glass, it will have an adverse effect on the physical and chemical properties of the glass substrate, which is not conducive to the subsequent use of the glass panel. When the hot pressing time in Comparative Example 7 is relatively long, it is not conducive to the industrial mass production of textured glass panels.

[0085] It should be noted that this application is not limited to the above embodiments. The above embodiments are only examples, and embodiments with the same structure and the same effect as the technical idea within the scope of the technical solution of this application are included in the technical scope of this application. In addition, within the scope of not departing from the gist of this application, various modifications that can be thought of by those skilled in the art to the embodiments, and other ways constructed by combining some constituent elements of the embodiments are also included in the scope of this application.

Claims

1. A method for preparing a textured glass panel based on surface hot pressing film forming, characterized in that: The following steps are involved: S1, stacking and aligning a glass substrate, an adhesive film layer, and an outer film layer in sequence, and placing a layer of pattern mold on the outer film layer, so that the pattern layer of the pattern mold contacts the outer film layer, to obtain a glass panel layer structure to be processed; S2. The glass panel layer structure to be processed obtained in step S1 is subjected to vacuum hot pressing at a temperature of 100-160° C., a pressure of 0.2-0.6 MPa, and a time of 10-20 min to obtain a textured glass panel formed by surface hot pressing film.

2. The method for preparing a textured glass panel based on surface hot pressing film molding according to claim 1, characterized in that: In step S1, the softening point temperature of the outer film layer is 100-160°C.

3. The method for preparing a textured glass panel based on surface hot pressing film molding according to claim 2, characterized in that: In step S1, the thermal deformation temperature of the pattern mold is not less than 170°C.

4. The method for preparing a textured glass panel based on surface hot pressing film molding according to claim 1, characterized in that: The thickness of the outer film layer is 0.1 mm to 1 mm, and the thickness of the adhesive film layer is 0.1 mm to 3 mm.

5. The method for preparing a textured glass panel based on surface hot pressing film molding according to claim 2, characterized in that: The material of the outer film layer includes one of polyethylene terephthalate, polyvinyl chloride, polypropylene, thermoplastic polyurethane, polycarbonate and polyethylene.

6. The method for preparing a textured glass panel based on surface hot pressing film molding according to claim 1, characterized in that: In step S1, the softening temperature of the adhesive film layer is 40-80°C.

7. The method for preparing a textured glass panel based on surface hot pressing film molding according to claim 1, characterized in that: In step S2, the vacuum hot pressing process is to first keep the glass panel layer structure to be processed in a vacuum environment for 1 to 8 minutes, and then perform a hot pressing molding process. The vacuum degree of the vacuum environment is 10 to 200 Pa.

8. The method for preparing a textured glass panel based on surface hot pressing film molding according to claim 6, characterized in that: The material of the adhesive film layer includes one of ethylene-vinyl acetate copolymer, polyolefin and polyvinyl butyral.

9. The method for preparing a textured glass panel based on surface hot pressing film molding according to claim 1, characterized in that: In step S1, the thickness of the glass substrate is 0.1 mm to 12 mm, the Mohs hardness is 5 to 7, and the type of the glass substrate is one of float glass, hot rolling, high alumina, microcrystalline, and high borosilicate glass.

10. A textured glass panel based on surface hot pressing film forming, characterized in that: The textured glass panel is prepared by the preparation method of a textured glass panel based on surface hot pressing film forming as described in any one of claims 1 to 9, wherein the textured glass panel based on surface hot pressing film forming comprises a glass substrate, an adhesive film layer and an outer film layer stacked in sequence, and the surface of the outer film layer contains a texture with a concave-convex depth of 0.5mm to 2mm.

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