Preparation process of tempered colored glazed glass

Abstract

The invention relates to the technical field of glass deep processing, and discloses a preparation process of tempered colored glazed glass, the preparation process is used for printing images and texts on glass, and the preparation process comprises a plate making step, a printing step, a drying step, an impurity removing step and a coating step. Plate manufacturing, wherein a silk screen plate is manufactured according to images and texts needing to be printed; printing: the silk screen is arranged on the surface of the glass, the surface of the glass is coated with a coloring agent so as to form an image-text layer on the surface of the glass, and the coloring agent comprises acrylate and ethyl alcohol; drying: heating the glass, and evaporating the ethanol to cure and bond the coloring agent on the surface of the glass; impurity removal: cleaning the image-text layer; coating: coating the side, provided with the image-text layer, of the glass to form a film layer, a part of the film layer is arranged on the surface of the glass, and a part of the film layer is arranged on the image-text layer. According to the preparation process of the tempered colored glazed glass, marks on the surface of the glass can be removed in time, and the printing quality of the tempered colored glazed glass is improved.

Description

Technical Field

[0001] This invention relates to the technical field of deep glass processing, and in particular to a preparation process for tempered colored glaze glass. Background Technology

[0002] In related technologies, when printing images and text on glass to form colored enamel glass, ink is often applied to the glass to print the images and text. However, since ink is easily soluble in water, the glass needs to be coated to form a film before cleaning can be performed. This results in marks remaining on the glass surface that cannot be removed, thus affecting the printing quality of tempered colored enamel glass. Summary of the Invention

[0003] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention proposes a preparation process for tempered colored enamel glass that can promptly remove markings from the glass surface and improve the printing quality of tempered colored enamel glass.

[0004] According to a first aspect of the present invention, a process for preparing tempered colored enamel glass is provided, the process for printing images and text on glass, the process including a plate-making step, a printing step, a drying step, a purification step, and a coating step.

[0005] Screen making: Prepare a screen printing stencil according to the desired printed image; Printing: Place the screen printing stencil on the surface of the glass, and coat the surface of the glass with a colorant to form an image layer on the surface of the glass, the colorant including acrylate and ethanol; Drying: Heat the glass and evaporate the ethanol to cure and bond the colorant to the surface of the glass; Impurity removal: Clean the image layer; Coating: Coat the side of the glass with the image layer to form a film layer, part of the film layer is on the surface of the glass, and part of the film layer is on the image layer.

[0006] The preparation process of tempered colored enamel glass according to embodiments of the present invention has at least the following beneficial effects: by including acrylate and ethanol as colorants, ethanol can act as a solvent to dissolve the acrylate, allowing the acrylate to be coated onto the surface of the glass to form the desired printed graphic shape and structure. The graphic layer is then dried to allow the ethanol to evaporate, leaving the acrylate on the glass surface. After heating and drying, the acrylate solidifies on the glass surface, and because acrylate is waterproof, the glass surface and graphic layer can be cleaned before the coating step, thereby removing imprints from the glass surface and improving the printing quality of the tempered colored enamel glass.

[0007] According to some embodiments of the present invention, in the colorant, the mass percentage of the acrylate is between 85% and 90%, and the mass percentage of the ethanol is between 10% and 15%.

[0008] According to some embodiments of the present invention, in the drying step, the heating temperature is between 100°C and 120°C, and the heating time is between 80s and 160s.

[0009] According to some embodiments of the present invention, the preparation process further includes a tempering step, which is performed after the coating step. In the tempering step, the glass is heated to increase the strength of the glass, and the graphic layer is decomposed to cause the graphic layer and the film layer on the graphic layer to detach from the surface of the glass.

[0010] According to some embodiments of the present invention, in the tempering step, the heating temperature is between 640°C and 680°C.

[0011] According to some embodiments of the present invention, the thickness of the graphic layer is between 8 μm and 15 μm.

[0012] According to some embodiments of the present invention, the tempering step includes a preheating process and a heating process, wherein the preheating process is performed before the heating process, wherein: in the preheating process, the glass is preheated to cause the graphic layer and part of the film layer to detach from the surface of the glass; and in the heating process, the glass is heated to improve the glass strength.

[0013] According to some embodiments of the present invention, the preheating temperature is between 450°C and 640°C.

[0014] According to some embodiments of the present invention, the preparation process further includes a slicing step and an edge grinding step, wherein the slicing step is performed before the edge grinding step, wherein: in the slicing step, the glass is cut as needed to change the size of the glass; in the edge grinding step, the cut glass is ground to eliminate surface defects of the glass.

[0015] According to some embodiments of the present invention, the slicing step and the edge grinding step are performed before the printing step; or, the preparation process further includes a tempering step, and the slicing step and the edge grinding step are performed between the coating step and the tempering step.

[0016] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 This is a schematic diagram of the preparation process in an embodiment of the present invention; Figure 2 This is a schematic flowchart of another embodiment of the preparation process in this invention; Figure 3 This is a flowchart illustrating the slicing and edge-grinding steps in an embodiment of the present invention, showing that the slicing and edge-grinding steps are performed before the printing step. Figure 4 This is another schematic diagram of the slicing step and the edge grinding step in an embodiment of the present invention, which shows that the slicing step and the edge grinding step are located between the coating step and the tempering step; Figure 5 This is a schematic diagram of glass processing in an embodiment of the present invention; Figure 6 This is a schematic diagram of glass cutting and segmentation in an embodiment of the present invention.

[0018] Figure label: Glass 110; graphic layer 120; film layer 130. Detailed Implementation

[0019] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0020] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0021] In the description of this invention, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0022] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0023] In the description of this invention, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0024] The preparation process of tempered colored glaze glass according to an embodiment of the present invention will now be described with reference to the accompanying drawings.

[0025] This invention provides a process for preparing tempered colored enamel glass for printing images and text on glass 110, see reference. Figure 1 As shown, the preparation process includes a plate-making step S100, a printing step S200, a drying step S300, a purification step S400, and a coating step S500, wherein, see reference Figure 1 and Figure 5 As shown, the specific method is as follows: Step S100, Plate Making: Set the graphic structure required for printing on the screen printing stencil. The screen printing stencil is used to cover the surface of the glass 110 so that the exposed part of the glass 110 surface is the same as the graphic structure to be printed.

[0026] Step S200, Printing: A screen printing stencil is placed over the surface of the glass 110, and then a colorant is applied to the exposed portion of the glass 110 to form a graphic layer 120 on the surface of the glass 110. The shape and structure of the graphic layer 120 are the same as the graphic structure to be printed. Specifically, in this embodiment, the colorant contains acrylate and ethanol. Ethanol acts as a solvent in the colorant, combining with the acrylate to dissolve it, allowing the colorant to become a solution and be uniformly coated on the surface of the glass 110. Since a portion of the surface of the glass 110 is covered by the screen printing stencil, the colorant adheres to the exposed surface of the glass 110 to form the desired graphic shape and structure. Before the drying step S300, the screen printing stencil needs to remain continuously placed on the surface of the glass 110 to limit the graphic layer 120. Since the graphic layer 120 formed by the colorant is still fluid at this time, the colorant can be blocked and limited by the screen printing plate to prevent it from flowing to other parts of the glass 110 surface, thus avoiding changes to the graphic structure to be printed and contamination of other parts of the glass 110 surface.

[0027] Step S300, Drying: The ethanol in the graphic layer 120 on the surface of the glass 110 is evaporated by heating, allowing the graphic layer 120 to solidify and adhere to the surface of the glass 110. Specifically, because ethanol has a low boiling point, it evaporates rapidly at the heating temperature. As the ethanol evaporates, the acrylate begins to solidify and adhere to the surface of the glass 110. With continued heating, the acrylate eventually forms a solid structure and bonds to the surface of the glass 110, thereby stabilizing the shape and structure of the graphic layer 120. At this point, the screen printing stencil is removed from the surface of the glass 110, and the graphic layer 120 does not flow or change its shape and structure, thus achieving the effect of printing graphics on the surface of the glass 110.

[0028] Step S400, Impurity Removal: The cured graphic layer 120 is cleaned. Specifically, in step S400, a deionized water cleaner can be used to clean the surface of the glass 110 and the graphic layer 120, thereby removing any impurities or marks that may remain on the graphic layer 120 or the surface of the glass 110, thus ensuring the printing quality of the graphic layer 120. During the cleaning process, because acrylic resin is waterproof, it will not dissolve in water and cause damage to the structure of the graphic layer 120.

[0029] Step S500, Coating: A coating material is applied to the side of the glass 110 where the graphic layer 120 is located to form a film layer 130. The film layer 130 covers the surface of the glass 110 to form tempered colored enamel glass. The film layer can be formed by either plating or by using colored enamel. Specifically, in this embodiment, the film layer is formed by magnetron sputtering. The sputtered material is deposited on the surface of the glass 110 to form the film layer 130. Since a screen printing stencil is placed on the surface of the glass 110 during printing in step S200, a portion of the glass 110 surface will have the graphic layer 120 formed, while the other portion will remain in its initial state. When the film layer 130 is applied to the surface of the glass 110, due to the presence of the graphic layer 120, part of the film layer 130 will cover the surface of the glass 110 and the other part will cover the graphic layer 120. This not only protects the surface of the glass 110 and the graphic layer 120, but also improves the printing clarity of the graphic layer 120 to enhance the printing effect.

[0030] In related technologies, ink is used as a colorant to coat the surface of glass when printing graphics. However, if the ink comes into contact with water after drying, the cured ink will redissolve in the water, damaging the graphic layer. Therefore, related technologies clean the glass after the graphic layer has been coated and formed a film. However, this results in impurities or marks on the glass surface or graphic layer being covered and protected by the film, making it impossible to remove them during cleaning, thus reducing the processing effect of the glass.

[0031] Compared to related technologies, the tempered colored enamel glass preparation process of this invention uses acrylate and ethanol as colorants. Ethanol acts as a solvent to dissolve the acrylate, allowing it to be coated onto the surface of glass 110 to form the desired printed graphic shape. The graphic layer 120 is then dried to evaporate the ethanol, leaving the acrylate on the surface of glass 110. The acrylate solidifies on the surface of glass 110 after heating and drying. Furthermore, because acrylate is waterproof, the surface of glass 110 and the graphic layer 120 can be cleaned before the coating step to remove any marks from the glass 110 surface, thus improving the printing quality of the tempered colored enamel glass.

[0032] It is understood that in some embodiments, the colorant contains 85% to 90% acrylate by mass and 10% to 15% ethanol by mass. The acrylate by mass can be 85%, 86%, 88%, or 90%, or other percentages. The ethanol by mass can be 10%, 12%, 14%, or 15%, or other percentages.

[0033] Specifically, since acrylate is the main film-forming material of the graphic layer 120, a higher acrylate content allows the graphic layer 120 to have better strength and durability after drying, ensuring its integrity during subsequent cleaning and coating. The ethanol content is between 10% and 15%, allowing it to dissolve the acrylate and form a liquid coating. Furthermore, the lower ethanol content compared to acrylate allows the ethanol to evaporate quickly during the drying step S300, curing the acrylate onto the surface of the glass 110, thus shortening the curing time of the graphic layer 120 and improving the efficiency of graphic printing.

[0034] In one example, in drying step S300, the drying temperature is controlled between 100°C and 120°C, and the drying time is between 80 seconds and 160 seconds. The drying temperature can be 100°C, 110°C, 115°C, or 120°C, and the drying time can be 80 seconds, 90 seconds, 110 seconds, or 160 seconds, etc. In this embodiment, a radiant tube drying oven is used to dry the surface of glass 110 and the graphic layer 120. The drying time is the time required for the radiant tube drying oven to maintain a constant temperature after reaching the specified temperature range.

[0035] It is understandable that ethanol has a boiling point of approximately 78.4°C, which is lower than that of acrylate. Therefore, by keeping the graphic layer 120 within a temperature range of 100°C to 120°C, the ethanol will evaporate before the acrylate and completely evaporate from the solution mixed with the acrylate, leaving the acrylate on the glass surface, thereby improving the water resistance of the graphic layer 120. Simultaneously, it also avoids excessively high temperatures that could cause the acrylate to react (such as dissolving and detaching). Furthermore, as the heating time increases (80 to 160 seconds), the acrylate will begin to cross-link and cure, allowing the graphic layer 120 to solidify on the surface of the glass 110. This enhances the adhesion between the graphic layer 120 and the glass 110 surface, improving the stability of the graphic layer 120 and preventing damage to the graphic layer 120 during the cleaning process.

[0036] In some embodiments, see Figure 2 As shown, the manufacturing process also includes a tempering step S600. The tempering step S600 is performed after the recoating step S500. In the tempering step S600, the coated glass 110 is heated to a specific temperature range to improve the overall strength and impact resistance of the glass 110. Furthermore, in the tempering step S600, the graphic layer 120 undergoes combustion decomposition, causing the graphic layer 120 and its film layer 130 to detach from the surface of the glass 110.

[0037] Specifically, unlike the conventional tempering process in related technologies, the tempering step in this application also requires controlling the heating temperature to cause the graphic layer 120 and its film layer 130 to detach from the surface of the glass 110. In this embodiment, during the tempering process, after the glass 110 is heated to a specific temperature, the graphic layer 120 (composed of acrylate) undergoes thermal decomposition or combustion due to the temperature rise, thereby causing the structure of the graphic layer 120 to be destroyed and eventually detach from the surface of the glass 110. At the same time, since a portion of the film layer 130 covers the graphic layer 120, as the graphic layer 120 burns and decomposes, this portion of the film layer 130 will also detach from the surface of the glass 110 along with the graphic layer 120. In this embodiment, after the graphic layer 120 and part of the film layer 130 are detached from the surface of the glass 110, the portion of the glass 110 surface not covered by the graphic layer 120 will retain the film layer 130. This makes the shape and structure of the portion of the glass 110 surface without the film layer 130 the same as the graphic structure to be printed. That is, by determining whether the film layer 130 is provided on the surface of the glass 110 and the reaction generated on the glass surface during the processing, a contrasting patterned area (the portion without the film layer 130) and a non-patterned area (the portion coated with the film layer 130) are formed on the surface of the glass 110. This completes the tempering of the glass 110 to improve its strength and also completes the graphic printing on the glass 110.

[0038] Therefore, by including acrylate and ethanol as colorants, the glass 110 can be cleaned before the coating step S500 during the printing process to remove marks from its surface, thus improving the printing quality of tempered colored enamel glass. Furthermore, the image layer 120 and part of the film layer 130 can be removed during tempering, thereby forming the desired printed image on the surface of the glass 110.

[0039] Furthermore, in one example, in the tempering step S600, the tempering heating temperature is between 640°C and 680°C. The tempering heating temperature can be any other temperature within the heating temperature range, such as 640°C, 650°C, 675°C, or 680°C.

[0040] Specifically, when the glass 110 is heated to this temperature range, the surface of the glass 110 softens, adjusting the internal properties of the glass 110 and thus improving its strength and impact resistance. Furthermore, when the temperature reaches the desired range, the acrylic graphic layer 120 undergoes thermal decomposition or combustion at a high temperature of 640°C to 680°C. This allows the glass 110 to be tempered while simultaneously allowing the graphic layer 120 and the portion of the film layer 130 covering it to completely detach from the surface of the glass 110, thereby completing the formation of the graphic on the surface of the glass 110. By combining the tempering of the glass 110 and the display of the graphic in the tempering step S600, the processing time of the glass 110 can be shortened, thereby improving the processing efficiency of the glass 110.

[0041] Furthermore, it can be understood that the thickness of the image layer 120 is controlled between 8μm and 15μm. Specifically, the thickness of the image layer 120 can be 8μm, 9μm, 13μm, or 15μm. Maintaining the thickness of the image layer 120 between 8μm and 15μm ensures the clarity of the image layer 120 and its complete combustion or decomposition during tempering.

[0042] Specifically, since the graphic layer 120 detaches from the surface of the glass 110 during tempering to create a contrast with the surrounding areas without the graphic layer 120, the graphic structure can be displayed on the surface of the glass 110. Therefore, controlling the thickness of the graphic layer 120 to be greater than 8μm can improve the coverage of the graphic layer 120 on the surface of the glass 110. This results in a weaker reaction on the surface of the glass 110 covered by the graphic layer 120 during the heat tempering process compared to the reaction on other parts of the glass 110 surface. This increases the difference between the surface of the glass 110 covered by the graphic layer 120 and other parts of the glass 110 surface. When the graphic layer 120 and part of the film layer 130 detach from the surface of the glass 110, increasing the difference between the surfaces of the glass 110 can improve the clarity of the graphic structure, thereby improving the visual effect and processing quality of the glass 110.

[0043] Meanwhile, by controlling the thickness of the graphic layer 120 to less than 15μm, it is possible to avoid the situation where the graphic layer 120 is too thick to be fully burned and decomposed during the tempering step S600, resulting in some graphic layer 120 remaining on the surface of the glass 110 after the tempering step S600, which would affect the processing effect of the glass 110.

[0044] In some embodiments, the tempering step S600 includes two processes: a preheating process and a heating process. The preheating process is performed before the heating process. During the preheating process, the temperature is gradually increased to preheat the glass 110. Preheating prevents uneven internal stress in the glass 110 due to sudden temperature increases and also allows the graphic layer 120 (composed of acrylic ester) and part of the film layer 130 thereon to begin detaching from the surface of the glass 110. After preheating, the glass 110 enters the heating process, where it is placed in a furnace at a higher temperature (e.g., 640°C to 680°C) to temper the glass 110, thereby enhancing its mechanical strength and impact resistance, and treating any residue from the graphic layer 120 to improve the processing quality of the glass 110.

[0045] Specifically, during the preheating stage, the glass 110 is heated to a relatively low temperature range that can cause the acrylate to decompose and fall off. In this embodiment, the preheating temperature is between 450°C and 640°C. Within the preheating temperature range of 450°C to 640°C, the acrylate softens, thereby reducing the adhesion between the graphic layer 120 and the surface of the glass 110. As the heating time increases, the acrylate undergoes combustion and decomposition, reducing the contact area between the graphic layer 120 and the surface of the glass 110, weakening the bonding force between the graphic layer 120 and the surface of the glass 110, thus causing the graphic layer 120 to detach from the surface of the glass 110. At the same time, some of the coating material covering the graphic layer 120 also becomes loose due to the temperature rise. When the graphic layer 120 detaches, the film layer 130 can no longer provide support for the graphic layer 120, so the film layer 130 will detach along with the graphic layer 120. Furthermore, within this temperature range, the glass 110 will be initially softened for pre-tempering, thereby balancing the internal stress of the glass 110 in preparation for subsequent heating and tempering.

[0046] After preheating, glass 110 is placed in a higher temperature range (640°C to 680°C) for tempering. Within this temperature range, the surface of glass 110 reaches its softening point, a uniform compressive stress layer forms inside the glass 110, while the outside remains under tensile stress. This enhances the structural strength of glass 110, achieving tempering. During the tempering heating process, the tempering furnace also performs secondary processing on the areas previously occupied by the graphic layer 120, preventing the graphic layer 120 from remaining on the surface of glass 110 and affecting the processing effect. This ensures the flatness and aesthetics of the glass 110 surface.

[0047] In some embodiments, see 3 to Figure 6As shown, the preparation process also includes a slicing step S700 and an edge grinding step S800. The slicing step S700 is used to cut the glass 110 into slices to ensure that the glass 110 meets the required dimensions. The edge grinding step S800 is used to grind the glass 110 to ensure the surface quality of the glass 110, further improving the clarity and printing quality of the graphics.

[0048] Specifically, the slicing step S700 precedes the edge grinding step S800. In the slicing step S700, the initial large piece of glass 110 needs to be cut into pieces according to production requirements or design specifications to change the size of the glass 110. After the slicing step S700 is completed, defects such as edge burrs and cracks will appear on the surface of the glass 110 during the cutting process. At this time, the edge grinding step S800 is used to process the surface of the glass 110 to eliminate the defects caused by cutting. For example, the edges of the glass 110 are ground by an edge grinding machine, and different grinding effects are achieved by assembling abrasive grains of different coarseness. This improves the surface quality of the glass 110, making the printed graphics on the surface of the glass 110 clearer, thereby improving the processing quality of the glass 110.

[0049] Furthermore, the slicing step S700 and the edge grinding step S800 can be replaced compared to other steps. Specifically, the slicing step S700 and the edge grinding step S800 can be located before the printing step S200, or between the coating step S500 and the tempering step S700. See Figure 3 As shown, in one example, the slicing step S700 and the edge grinding step S800 are located before the printing step S200. When glass 110 needs to be processed for printing graphics, the initial glass 110 needs to be cut into pieces to make the glass 110 to be processed reach the required size specifications. In this embodiment, since the glass 110 has not undergone any processing when the slicing step S700 is performed, the cutting operation can be performed more easily, thereby improving material utilization and processing efficiency of glass 110. After cutting, the glass 110 to be processed is edge-ground to eliminate edge defects generated during the cutting process, such as burrs or micro-cracks, thereby improving the surface quality of glass 110 to improve the quality and effect of subsequent printing. Subsequently, the glass 110 that has completed the edge grinding step S800 is applied to prepare a screen printing stencil, so that the size of the screen printing stencil and the size of the glass 110 are adapted to facilitate subsequent printing, drying, impurity removal and coating steps. In this embodiment, by performing the slicing step S700 and the edge grinding step S800, it can be ensured that the size and quality of the glass 110 meet the processing requirements, thus avoiding rework problems caused by size discrepancies or low surface quality of the glass 110 (such as microcracks or internal bubbles) in later processing.

[0050] See Figure 4 As shown, in another embodiment, the slicing step S700 and the edge grinding step S800 are located between the coating step S500 and the tempering step S600. When processing the glass 110, the glass 110 needs to undergo steps such as plate making, printing, drying, impurity removal, and coating to print the graphic layer 120 onto the surface of the glass 110, so that the surface of the glass 110 presents the required graphic structure. Then, before entering the tempering step S600, the glass 110 having the graphic layer 120 and the film layer 130 is sliced ​​and edge-ground to make the glass 110 meet the required size requirements and improve the surface quality of the glass 110 after preparation, further improving the clarity of the printed graphics. Furthermore, performing the slicing step S700 and the edge grinding step S800 after the coating step S500 can make the partitioning of the graphics meet the desired effect, thereby improving the processing quality of the glass 110.

[0051] Furthermore, since different customers have different processing requirements during the process, placing the slicing step S700 and the edge grinding step S800 after the coating step S500 allows the glass 110 to be transported after completing the coating step S500. At this time, the surface of the glass 110 has a graphic layer 120 and a film layer 130. The curing of the graphic layer 120 ensures that the graphic structure of the glass 110 will not change during transportation, and the film layer 130 will also protect the graphic layer 120 and the surface of the glass 110 during transportation. After the glass 110 is transported to its destination, the user can then perform slicing, edge grinding, and tempering steps on the glass 110 according to their own needs to form tempered colored enamel glass. This enables off-site processing of the glass 110, improving the processing efficiency and applicability of the glass 110.

[0052] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments, and various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention. Furthermore, the embodiments of the present invention and the features thereof can be combined with each other unless otherwise specified.

Claims

1. Process for the production of tempered glass with coloured enamel for printing graphics on glass, characterized by, The preparation process comprises the following steps: plate making: preparing a screen printing plate according to the image to be printed; printing: placing the screen printing plate on the surface of the glass, and applying a colorant on the surface of the glass to form an image layer on the surface of the glass, wherein the colorant comprises acrylate and ethanol; drying: heating the glass to evaporate the ethanol and solidify the colorant on the surface of the glass; decontamination: cleaning the image layer; coating: coating on one side of the glass with the image layer to form a film layer, part of the film layer being on the surface of the glass and part of the film layer being on the image layer.

2. The process for preparing tempered glass with colored glaze according to claim 1, characterized in that, In the colorant, the mass percentage of acrylate is between 85% and 90%, and the mass percentage of ethanol is between 10% and 15%.

3. The process for preparing tempered glass with colored glaze according to claim 1, characterized in that, In the drying step, the heating temperature is between 100°C and 120°C, and the heating time is between 80s and 160s.

4. The process for preparing tempered glass with colored glaze according to claim 1, characterized in that, The preparation process further comprises a tempering step, which is arranged after the coating step, in which the glass is heated to increase the strength of the glass, and the image layer is decomposed to make the image layer and the film layer on the image layer fall off from the surface of the glass.

5. The process for preparing tempered glass with colored glaze according to claim 4, characterized in that, In the tempering step, the heating temperature is between 640°C and 680°C.

6. The process for preparing tempered glass with colored glaze according to claim 5, characterized in that, The thickness of the image layer is between 8μm and 15μm.

7. The process for preparing tempered glass with colored glaze according to claim 4, characterized in that, The tempering step comprises a preheating process and a heating process, and the preheating process is arranged before the heating process, wherein: in the preheating process, the glass is preheated to make the image layer and part of the film layer fall off from the surface of the glass; and in the heating process, the glass is heated to increase the strength of the glass.

8. The process for preparing tempered glass with colored glaze according to claim 7, characterized in that, The preheating temperature is between 450°C and 640°C.

9. The process for preparing tempered glass with colored glaze according to claim 1, characterized in that, The preparation process further comprises a slicing step and an edge grinding step, and the slicing step is arranged before the edge grinding step, wherein: in the slicing step, the glass is cut according to the required size of the glass; and in the edge grinding step, the cut glass is ground to eliminate surface defects of the glass.

10. The process for preparing tempered glass with colored glaze according to claim 9, characterized in that, The slicing step and the edge grinding step are arranged before the printing step; or, the preparation process further comprises a tempering step, and the slicing step and the edge grinding step are arranged between the coating step and the tempering step.

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