A distortion-resistant multilayer composite printing plate

Abstract

The utility model discloses a kind of anti-deformation multilayer composite structure printing metal plate, including screen frame, selvedge, metal layer and buffer layer, further including printing graphics set on the metal layer and buffer layer, one end of the buffer layer is connected with metal layer, the other end is contacted with printing material, the recess is formed with the recess in the one end of metal layer facing buffer layer by sand blasting, recess is filled with the convex of integral with the buffer layer;The printing graphics include ink inlet storage tank opened in the one end of metal layer back to printing material, the groove bottom of ink inlet storage tank is equipped with the ink discharge channel of penetration metal layer and buffer layer. The printing metal plate can enhance the binding force between metal layer and buffer layer;And graphic area ink discharge is continuous and smooth, overall function is perfect, and practicality is strong.

Description

Technical Field

[0001] This utility model relates to the field of printing screen technology, and more specifically, it relates to a deformation-resistant multi-layer composite structure printing metal plate. Background Technology

[0002] With the increasing demand for finer line printing of metallized electrodes in photovoltaic cells, fully open metal printing plates, through their unobstructed fine grid design, significantly improve the ink transmittance, enabling finer and smoother grid line printing. However, current fully open metal printing plates are made of materials such as nickel, nickel alloys, copper, and stainless steel. During actual printing, if subjected to pressure from foreign objects, they are prone to plastic deformation, resulting in inconsistent line thickness and nodules in the printed electrode grid lines. In contrast, traditional printing screens typically use emulsion or PI film, which provides a buffering effect under the same pressure, reducing irreversible deformation. Therefore, this invention proposes a deformation-resistant multi-layer composite structure printing metal printing plate. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a deformation-resistant multilayer composite structure printing metal plate.

[0004] To solve the above-mentioned technical problems, the purpose of this utility model is achieved as follows: The present utility model relates to a deformation-resistant multi-layer composite structure printing metal plate, which includes a frame, a border, a metal layer and a buffer layer, and also includes a printed pattern disposed on the metal layer and the buffer layer. One end of the buffer layer is connected to the metal layer and the other end is in contact with the substrate. The end of the metal layer facing the buffer layer is sandblasted to form a groove, and the groove is filled with a protrusion integral with the buffer layer.

[0005] The present invention is further configured such that: the printed pattern includes an ink inlet reservoir at the end of the metal layer facing away from the substrate, and the bottom of the ink inlet reservoir is provided with an ink discharge channel that penetrates the metal layer and the buffer layer.

[0006] The present invention is further configured such that: the ink discharge channel has an ink inlet flared opening and an ink outlet narrow opening, the ink outlet narrow opening is located at one end of the buffer layer facing away from the metal layer, and the ink inlet flared opening is located at the bottom of the ink inlet storage tank.

[0007] The present invention is further configured such that the longitudinal section of the ink discharge channel is in the shape of an isosceles trapezoid.

[0008] The present invention is further configured such that the material of the buffer layer is PI or a photosensitive emulsion.

[0009] In summary, this utility model has the following beneficial effects:

[0010] 1. Strong bonding between the metal layer and the buffer layer.

[0011] 2. The ink flow in the graphic area is continuous and smooth. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model. Detailed Implementation

[0013] To enable those skilled in the art to better understand the technical solution of this utility model, the preferred embodiments of this utility model are described below in conjunction with specific examples. However, it should be understood that these descriptions are only for further illustrating the features and advantages of this utility model, and not for limiting the patent claims of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this utility model.

[0014] The present invention will be further described below with reference to the accompanying drawings and preferred embodiments.

[0015] Example 1

[0016] See Figure 1 As shown, the anti-deformation multilayer composite structure printing metal plate involved in this embodiment includes a frame (not shown), a border (not shown), a metal layer 1 and a buffer layer 2, and also includes a printed pattern 3 disposed on the metal layer 1 and the buffer layer 2. One end of the buffer layer 2 is connected to the metal layer 1 and the other end is in contact with the substrate. The end of the metal layer 1 facing the buffer layer 2 is sandblasted to form a groove 4, and the groove 4 is filled with a protrusion 5 that is integral with the buffer layer 2.

[0017] Furthermore, the buffer layer is made of non-metallic materials such as PI and photosensitive emulsion.

[0018] In this embodiment, by attaching a buffer layer 2 to the metal layer 1, the deformation of the metal caused by foreign object extrusion can be effectively reduced, and the consistency and stability of the printed graphic morphology can be improved, thereby enhancing the adaptability of the metal plate production line.

[0019] The metal layer is manufactured as follows: a metal sheet with printed patterns is prepared by electroforming or etching processes. The metal sheet has a single-layer or multi-layer structure and is made of metal materials such as nickel, nickel alloy, copper foil, or stainless steel foil.

[0020] The method for preparing a non-metallic buffer layer on a metal sheet is as follows: a PI film is attached to the metal sheet, and then the PI film at the pattern position is removed by laser lithography; or a photosensitive material is coated on the metal sheet, and then the photosensitive adhesive at the pattern position is removed by exposure and development.

[0021] The thickness of the buffer layer should be ≥1μ, with the optimal thickness being 2-10μ.

[0022] The buffer layer is designed to be flush with the edge of the graphic. Alternatively, it can extend a certain distance outward or inward from the graphic. For example, the edge of the buffer layer can be 2-10μ away from the edge of the graphic, or the edge of the buffer layer can extend 2-10μ inward beyond the graphic.

[0023] To improve the adhesion between the buffer layer and the metal surface, thereby enhancing printing durability, the metal surface can be sandblasted or etched before the buffer layer is prepared to improve the adhesion between the buffer layer and the metal. Secondly, during the fabrication of multi-layer metal plates, the non-printed graphic areas of the metal layer in contact with the buffer layer can be designed with a perforated structure to improve the adhesion between the buffer layer and the metal, while also improving the resistance to deformation.

[0024] Example 2

[0025] See Figure 1 As shown, the anti-deformation multilayer composite structure printing metal plate involved in this embodiment is further configured based on embodiment 1, wherein the printing pattern 3 includes an ink inlet reservoir 6 opened at the end of the metal layer facing away from the substrate, and the bottom of the ink inlet reservoir 6 is provided with an ink discharge channel 7 that penetrates the metal layer and the buffer layer.

[0026] Furthermore, the ink discharge channel 7 has an ink inlet flared port 71 and an ink outlet narrow port 72. The ink outlet narrow port 72 is located at one end of the buffer layer 2 facing away from the metal layer 1, and the ink inlet flared port 71 is located at the bottom of the ink inlet storage tank 7.

[0027] Furthermore, the longitudinal section of the ink discharge channel 7 is in the shape of an isosceles trapezoid.

[0028] In this implementation scheme, the ink inlet reservoir 6 is used to temporarily store ink for a short period of time, thereby achieving a continuous slow release function and ensuring continuous and smooth ink discharge.

[0029] By setting an ink inlet 71 and an ink outlet 72 at one end of the ink discharge channel 7, the buffer layer 2 at the narrow outlet position can effectively block the metal layer 1 at the ink inlet 71 position, ensuring smooth ink discharge while preventing the metal layer 1 from being exposed, thus indirectly protecting the printing surface.

[0030] The present invention relates to a deformation-resistant multi-layer composite printing metal plate, which can enhance the bonding force between the metal layer and the buffer layer; and the ink discharge in the graphic area is continuous and smooth, with complete overall function and strong practicality.

[0031] Unless otherwise specified, in this utility model, terms such as "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the actual orientation or positional relationship shown. They are used only for the convenience of describing this utility model 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, the terms used to describe orientation or positional relationships in this utility model are for illustrative purposes only and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood in conjunction with the embodiments and according to the specific circumstances.

[0032] Unless otherwise expressly specified and limited, the terms "set up," "connected," and "linked" in this utility model should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A deformation-resistant multi-layer composite printing metal plate, comprising a frame, edge mesh, a metal layer, and a buffer layer, characterized in that, It also includes printed patterns disposed on the metal layer and the buffer layer, one end of the buffer layer being connected to the metal layer and the other end being in contact with the substrate, and the end of the metal layer facing the buffer layer being sandblasted to form a groove, the groove being filled with a protrusion integral with the buffer layer.

2. The anti-deformation multilayer composite structure printing metal plate according to claim 1, characterized in that, The printed pattern includes an ink reservoir located at the end of the metal layer facing away from the substrate, and the bottom of the ink reservoir has an ink discharge channel that runs through the metal layer and the buffer layer.

3. The anti-deformation multilayer composite structure printing metal plate according to claim 2, characterized in that, The ink discharge channel has an ink inlet flared opening and an ink outlet narrow opening. The ink outlet narrow opening is located at one end of the buffer layer facing away from the metal layer, and the ink inlet flared opening is located at the bottom of the ink inlet storage tank.

4. The anti-deformation multilayer composite structure printing metal plate according to claim 3, characterized in that, The longitudinal section of the ink discharge channel is in the shape of an isosceles trapezoid.

5. The anti-deformation multilayer composite structure printing metal plate according to any one of claims 1-4, characterized in that, The buffer layer is made of PI or photosensitive emulsion.

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