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Method for modifying mesh of screen printing plate

A technology of screen printing and mesh, which is applied in the field of screen printing, can solve problems such as broken metal wires, lower opening ratio of mesh mesh, and reduced ink penetration, so as to ensure printing quality and avoid metal wire breakage Effect

Inactive Publication Date: 2019-12-20
江苏上达半导体有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But this will produce another problem: first, the metal wire at the intersection is squashed, which will reduce the opening ratio of the mesh grid, and then reduce the ink penetration; the second is that the metal wire at the intersection is squashed, changing The wire diameter of the mesh is reduced, which weakens the strength of the metal wire of the mesh, and it is easy to cause the metal wire to break due to excessive pressure. Long-term printing wear will cause the metal wire to break prematurely, reducing the use of the screen plate life

Method used

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Experimental program
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Embodiment Construction

[0013] The present invention will be described in further detail below.

[0014] A method for transforming screen printing screen mesh, comprising the steps of:

[0015] S1: the mesh is cleaned to remove oil stains, rust and scale on the surface;

[0016] S2: put the net yarn into the electroplating tank, and electroplate a layer of metal film on the net yarn;

[0017] S3: Clean the mesh after electroplating;

[0018] S4: Drying the mesh.

[0019] The metal film electroplated in step S2 is gold or nickel gold or zinc.

[0020] Since the aperture of the mesh is very small, it should be cleaned quickly and cleanly after electroplating. The method of using a spray gun can prevent the mesh from being blocked by the electroplating solution.

[0021] Without changing the wire diameter of the mesh and ensuring the strength of the metal wire of the mesh, the present invention electroplates a thin layer of metal film on the surface of the stainless steel wire, and "welds" the inter...

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PUM

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Abstract

The invention belongs to the technical field of screen printing, and discloses a method for modifying a mesh of a screen printing plate. The method comprises the steps of cleaning the mesh to remove greasy dirt, rust and scale on the surface; putting the mesh into an electroplating bath, and electroplating a layer of metal film on the mesh; cleaning the mesh after electroplating; and then drying the mesh. According to the method, the metal wire intersections of the mesh can be fixed, pressure is prevented from staggering the metal wire intersections, and printing quality can be guaranteed.

Description

technical field [0001] The invention relates to the technical field of screen printing, in particular to a method for transforming screen printing mesh. Background technique [0002] Screen printing is a common printing process in the field of flexible circuit board technology, and ink can be printed on the surface of polyimide substrate through screen printing. Common screen printing is made by photosensitive materials using exposure technology, so that the graphic part on the screen printing screen forms a transparent mesh, and the non-graphic part is blocked by photosensitive glue and cannot be transparent. The commonly used screen in flexible circuit boards is stainless steel wire. The net, the screen is fixed by the frame around the screen, and has a certain tension. In the printing process, the ink is spread on the surface of the screen, and the scraper is pressed and moved along the printing direction during printing to print on the surface of the substrate. [0003...

Claims

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Application Information

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IPC IPC(8): B41N3/00B41N3/03
CPCB41N3/006B41N3/03
Inventor 于振王健孙慧娟孙彬沈洪李晓华
Owner 江苏上达半导体有限公司
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