Thickened screen printing plate

Abstract

The utility model relates to the technical field of printing screens, in particular to a thickened printing screen which comprises a screen frame and screen cloth, the screen cloth is fixedly connected in the screen frame, a main grid pattern is arranged on the screen cloth and forms a main grid pattern area on the screen cloth, wear-resistant emulsion is arranged on the surface of the main grid pattern area, and the wear-resistant emulsion is arranged on the surface of the main grid pattern area. A P I film is pasted on the side wall of the screen frame, and the P I film shields the part, away from the main grid pattern area, of the screen cloth. The wear-resistant emulsion and the P I film are arranged, so that the printing scraper can be prevented from being in direct contact with the screen cloth, and the service life of the screen printing plate is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of printing screens, in particular to a thickened printing screen. Background Art

[0002] At present, improving the conversion efficiency of solar cells is the main research object of solar cells. In addition to the selection and optimization of cell substrate materials and the improvement of cell manufacturing process, the adoption of appropriate high-precision and high-stability printing methods can also improve the conversion efficiency of solar cells. In the printing process of solar cells, the use of printing screens has a great influence on the final printing quality.

[0003] Among them, the screen is an important tool for screen printing, and it can also be said to be an important foundation of screen printing. The screen is generally composed of a screen frame and a mesh cloth. Increasing the life of the screen is a way to reduce manufacturing costs. However, during the use of the current screen, printing is carried out on its surface through a printing scraper, which easily leads to direct contact between the scraper and the mesh cloth, thereby easily causing damage to the mesh cloth and reducing the life of the screen. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a thickened printing screen.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A thickened printing screen, comprising:

[0007] A mesh frame and a mesh cloth, wherein the mesh cloth is fixedly connected in the mesh frame, a main grid pattern is arranged on the mesh cloth, the main grid pattern forms a main grid pattern area on the mesh cloth, a wear-resistant emulsion is arranged on the surface of the main grid pattern area, a PI film is pasted on the side wall of the mesh frame, and the PI film shields the part of the mesh cloth away from the main grid pattern area.

[0008] Preferably, the distance between the wear-resistant emulsion and the main grid pattern adjacent to it is 1-2 mm.

[0009] The utility model has the following beneficial effects:

[0010] The use of wear-resistant emulsion and PI film can avoid direct contact between the printing scraper and the mesh, thereby increasing the service life of the screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a structural schematic diagram of a thickened printing screen proposed by the utility model;

[0012] Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure from above.

[0013] In the figure: 1. screen frame; 2. mesh cloth; 3. main grid pattern; 4. main grid pattern area; 5. wear-resistant emulsion; 6. PI film. DETAILED DESCRIPTION

[0014] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0015] Reference Figure 1-Figure 2 A thickened printing screen comprises a screen frame 1 and a screen cloth 2, the screen cloth 2 is fixedly connected in the screen frame 1, a main grid pattern 3 is arranged on the screen cloth 2, the main grid pattern 3 forms a main grid pattern area 4 on the screen cloth 2, and a wear-resistant emulsion 5 is arranged on the surface of the main grid pattern area 4. Furthermore, the wear-resistant emulsion 5 is an oxidized paraffin emulsion, a PI film 6 is pasted on the side wall of the screen frame 1, and the PI film 6 shields the part of the screen cloth 2 away from the main grid pattern area 4.

[0016] The wear-resistant emulsion 5 and the PI film 6 can avoid direct contact between the printing scraper and the mesh 2, thereby increasing the service life of the screen.

[0017] The distance between the wear-resistant emulsion 5 and the main grid pattern 3 adjacent to it is 1-2 mm, which does not affect the printing of the main grid pattern 3.

[0018] When printing the main grid pattern 3 on the mesh 2, the mesh 2 is located directly below the external printing scraper. At this time, under the action of the wear-resistant emulsion 5 and the PI film 6, direct contact between the external printing scraper and the mesh 2 can be avoided, thereby increasing the service life of the screen.

[0019] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A thickened printing screen, characterized in that: include: A screen frame (1) and a screen cloth (2), wherein the screen cloth (2) is fixedly connected in the screen frame (1), a main grid pattern (3) is arranged on the screen cloth (2), the main grid pattern (3) forms a main grid pattern area (4) on the screen cloth (2), a wear-resistant emulsion (5) is arranged on the surface of the main grid pattern area (4), a PI film (6) is pasted on the side wall of the screen frame (1), and the PI film (6) shields the part of the screen cloth (2) away from the main grid pattern area (4).

2. A thickened printing screen according to claim 1, characterized in that: The distance between the wear-resistant emulsion (5) and the main grid pattern (3) adjacent to it is 1-2 mm.

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