Production process of light-color printed glass panel

Abstract

The invention belongs to the technical field of glass panel production, and particularly relates to a production process of a light-color printed glass panel, which comprises the following procedures: cutting, edging and chamfering, primary cleaning, primary printing, primary curing, primary tempering, secondary printing and curing, secondary tempering, secondary cleaning, quality detection and packaging. According to the production process, the light-color printed glass panel with uniform color and high color saturation can be produced, and the requirements of the market on high-quality products are met; by optimizing the ink blending and printing process, the adhesive force and wear resistance of the ink are improved, and the service life of the product is prolonged; the production process is simple to operate, high in production efficiency and suitable for large-scale production.

Description

Technical Field

[0001] The invention belongs to the technical field of glass panel production, and in particular relates to a production process of a light-colored printed glass panel. Background Art

[0002] With the development of science and technology and people's increasing requirements for product appearance, printed glass panels have been widely used in electronic equipment, home decoration and other fields. However, the existing printed glass panel production process often has problems such as uneven color, low color saturation, and poor wear resistance when producing light-colored products. The main reason is that in the traditional production process, three printings are often performed directly and continuously, which will result in poor ink adhesion and color stability of the product, resulting in a high scrap rate of the product.

[0003] Therefore, improvement is urgently needed. Summary of the invention

[0004] In order to solve the above problems existing in the prior art, the present invention provides a production process of a light-colored printed glass panel, comprising the following steps:

[0005] 1) Cutting: Cut the glass substrate into glass sheets of specified size according to specifications.

[0006] 2) Edge grinding and chamfering: Use edge grinding machine and chamfering machine to grind and chamfer the edges of the original glass piece in turn.

[0007] 3) Primary cleaning: Use a cleaning machine to wash the original glass sheet after the treatment in step 2) to remove impurities on the surface of the original glass sheet and ensure that the surface of the original glass sheet is clean.

[0008] 4) One-time printing: Before printing, the printing ink is accurately prepared according to the required light-colored color. The ink with uniform color and moderate saturation can be obtained by adjusting the type, proportion and concentration of the pigment and adding appropriate amounts of additives such as dispersants and leveling agents. Then, the glass sheet treated in step 3) is screen-printed with high-precision printing equipment, and the prepared light-colored ink is printed on the glass sheet to obtain a glass panel with a pattern. In this process, printing parameters such as printing temperature, humidity, speed, pressure, ink thickness, etc. need to be controlled to ensure printing quality.

[0009] 5) Primary curing: The glass panel treated in step 4) is placed in a drying channel for curing. The curing time and temperature are adjusted according to the characteristics and requirements of the ink to ensure that the ink is fully cured and improve wear resistance and weather resistance.

[0010] 6) Primary tempering: Tempering the glass panel after the treatment in step 5).

[0011] 7) Secondary printing and curing: The glass panel treated in step 6) is subjected to multiple screen printing and drying treatments, and a drying treatment is performed after each printing.

[0012] 8) Secondary tempering: The glass panel treated in step 7) is tempered to obtain a finished glass panel.

[0013] 9) Secondary cleaning: Clean the finished glass panel obtained in step 8) to ensure the cleanliness of the glass.

[0014] 10) Quality inspection: The finished glass panels cleaned in step 9) are subjected to quality inspection, and unqualified products are reworked or scrapped.

[0015] 11) Packaging: Packaging the finished glass panels that have passed the inspection in step 10).

[0016] Preferably, in step 4), the printing temperature is 22-28° C., the humidity is 55-70%, and the printing speed is 400-500 mm / s.

[0017] Preferably, in step 6), the glass panel with a thickness of 3.2-4 mm is heated at a high temperature of 600-700° C. for 100-260 seconds, and a conventional air blowing cooling treatment is performed without adding wind pressure.

[0018] Specifically, the main purpose of tempering is to fuse the first printed ink and the glass panel together at high temperature to ensure the color effect. No rapid cold air treatment is performed, only conventional blowing treatment is performed. People can touch the glass panel with their hands after it comes out of the oven. In fact, the physical and chemical properties of glass have no granularity.

[0019] Preferably, the drying temperature in each step 7) is 130-200° C., and the drying speed is 1.5-3 m / min.

[0020] Specifically, the purpose of doing so is to print the prepared ink onto the ink surface of the cured glass panel, thereby ensuring the color hiding performance.

[0021] Preferably, the tempering temperature in step 8) is 680-700°C.

[0022] Specifically, the purpose of secondary tempering is to ensure the outer tube, color and performance of the product.

[0023] Preferably, the quality inspection indicators in step 10) include color uniformity, color saturation, wear resistance and adhesion.

[0024] The beneficial effects of the present invention are:

[0025] 1) The production process of the present invention can produce light-colored printed glass panels with uniform color and high color saturation, meeting the market demand for high-quality products.

[0026] 2) By optimizing ink blending and printing technology, the adhesion and wear resistance of the ink are improved, and the service life of the product is extended.

[0027] 3) The production process is simple to operate, has high production efficiency, and is suitable for large-scale production. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0029] Figure 1 It is a process flow chart of the present invention. DETAILED DESCRIPTION

[0030] The present invention is described clearly below in conjunction with the drawings and specific embodiments in the embodiments of the present invention. The description herein is only used to explain the present invention, but is not intended to limit the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work, any modifications, equivalent substitutions, improvements, etc., should be included in the protection scope of the present invention.

[0031] Example

[0032] like Figure 1 As shown, the present invention provides a production process for a light-colored printed glass panel, comprising the following steps:

[0033] 1) Cutting: Cut the glass substrate into glass sheets of specified size according to specifications.

[0034] 2) Edge grinding and chamfering: Use edge grinding machine and chamfering machine to grind and chamfer the edges of the original glass piece in turn.

[0035] 3) Primary cleaning: Use a cleaning machine to wash the original glass sheet after the treatment in step 2) to remove impurities on the surface of the original glass sheet and ensure that the surface of the original glass sheet is clean.

[0036] 4) One-time printing: Before printing, the printing ink is accurately prepared according to the required light-colored color. The ink with uniform color and moderate saturation can be obtained by adjusting the type, proportion and concentration of the pigment and adding an appropriate amount of additives, such as dispersants and leveling agents. Then, the glass sheet treated in step 3) is screen-printed with high-precision printing equipment, and the prepared light-colored ink is printed on the glass sheet to obtain a glass panel with a pattern. In this process, the printing parameters, such as printing temperature, humidity, speed, pressure, ink thickness, etc., need to be controlled to ensure the printing quality, wherein the printing temperature is 22-28°C, the humidity is 55-70%, and the printing speed is 400-500mm / s.

[0037] 5) Primary curing: The glass panel treated in step 4) is placed in a drying channel for curing. The curing time and temperature are adjusted according to the characteristics and requirements of the ink to ensure that the ink is fully cured and improve wear resistance and weather resistance.

[0038] 6) Tempering once: The glass panel treated in step 5) is subjected to the first tempering treatment. The main purpose of tempering is to fuse the first printed ink and the glass panel at high temperature to ensure the color effect. No rapid cold air treatment is performed, only conventional blowing treatment is performed. After the glass panel is taken out of the oven, people can touch it with their hands. In fact, the physical and chemical properties of glass are free of granularity. For a 3.2mm thick glass panel, it is heated at a high temperature of 600-700℃ for 100-200 seconds, and a conventional blowing cooling treatment is performed without adding wind pressure.

[0039] 7) Secondary printing and curing: The glass panel treated in step 6) is subjected to multiple screen printing and drying treatments, and each time it is printed, it is dried once; the drying temperature each time is 130-200°C, and the drying speed is 1.5-3m / min; the purpose of this is to print the prepared ink onto the ink surface of the cured glass panel, thereby ensuring the color covering performance.

[0040] 8) Secondary tempering: The glass panel treated in step 7) is tempered at 680°C to obtain a finished glass panel; the purpose of secondary tempering is to ensure the outer tube, color and performance of the product.

[0041] 9) Secondary cleaning: Clean the finished glass panel obtained in step 8) to ensure the cleanliness of the glass.

[0042] 10) Quality inspection: The finished glass panels cleaned in step 9) are subjected to quality inspection. Inspection indicators include color uniformity, color saturation, wear resistance and adhesion, etc. Unqualified products are reworked or scrapped.

[0043] 11) Packaging: Packaging the finished glass panels that have passed the inspection in step 10).

[0044] The embodiments of the present invention have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A production process for light-colored printed glass panels, characterized in that: The following steps are involved: 1) Cutting: Cut the glass substrate into glass sheets of specified size according to specifications; 2) Edge grinding and chamfering: Use edge grinding machine and chamfering machine to grind and chamfer the edges of the original glass sheet in turn; 3) Primary cleaning: using a cleaning machine to wash the original glass sheet after the treatment in step 2) to remove impurities on the surface of the original glass sheet; 4) One-step printing: screen printing is performed on the original glass sheet processed in step 3) by a printing device to obtain a glass panel with a pattern; 5) Primary curing: placing the glass panel treated in step 4) in a drying tunnel for curing; 6) Primary tempering: tempering the glass panel after the treatment in step 5); 7) Secondary printing and curing: The glass panel treated in step 6) is subjected to multiple screen printing and drying processes, and each time it is printed, a drying process is performed; 8) Secondary tempering: tempering the glass panel after the treatment in step 7) to obtain a finished glass panel; 9) Secondary cleaning: cleaning the finished glass panel obtained in step 8); 10) Quality inspection: Perform quality inspection on the finished glass panels after cleaning in step 9), and rework or scrap unqualified products; 11) Packaging: Packaging the finished glass panels that have passed the inspection in step 10).

2. The production process of light-colored printed glass panels according to claim 1, characterized in that: In step 4), the printing temperature is 22-28° C., the humidity is 55-70%, and the printing speed is 400-500 mm / s.

3. The production process of light-colored printed glass panels according to claim 1, characterized in that: In step 6), the glass panel with a thickness of 3.2-4 mm is heated at a high temperature of 600-700° C. for 100-260 seconds, and then subjected to conventional air blowing cooling treatment without adding wind pressure.

4. The production process of light-colored printed glass panels according to claim 1, characterized in that: In step 7), the drying temperature is 130-200° C. and the drying speed is 1.5-3 m / min.

5. The production process of light-colored printed glass panels according to claim 1, characterized in that: The tempering temperature in step 8) is 680-700°C.

6. The production process of light-colored printed glass panels according to claim 1, characterized in that: The quality inspection indicators in step 10) include color uniformity, color saturation, wear resistance and adhesion.

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