Novel exposure blueprinting method for screen printing plate

Abstract

The invention relates to a novel exposure blueprinting method for a screen printing plate. The method comprises steps as follows: firstly, a PET film is produced; then a base of a clean stainless steel mesh is dried after being pre-coated with an a-component photosensitive adhesive, the total thickness of 1 mu m is reserved during scraping coating of a printing surface, then the printing surface is coated with two lines of a b-component photosensitive adhesive, meanwhile, the PET film is applied slowly from bottom to top, drying is performed, the PET film is torn down when the printing surface is almost dried and drying is performed continuously until the printing surface is not sticky; finally, exposure can be performed when the organic PET film is torn down when the printing surface is almost dried and drying is performed continuously until the printing surface is not sticky, the set value of the exposure is the lower limit value of the exposure peek, and the stainless steel screen printing plate with a required printing graph is produced. A full-automatic precise coating machine and a parallel light printer are used in the method, the flatness of a photosensitive adhesive film surface coated with the technology is excellent, and the surface of an exposure mask is subjected to ionization treatment, so that the surface of the produced screen printing plate is smoother than that of a traditional screen printing plate, and the graph duplication is more accurate.

Description

technical field [0001] The invention relates to the technical field of printing, in particular to a novel printing method for screen printing. Background technique [0002] Screen printing technology is an ancient civilization and a long-lasting industry, which is widely used in people's production and life. Especially in recent years, with the high development of the electronics industry, the screen printing process has been well applied, and a vibrant scene has emerged. The basic structure of the screen plate is eternal, that is, the screen frame, the printing screen and the photosensitive material for printing are integrated, and the three are indispensable. The screen frame is the support to ensure constant tension, and the mesh is the carrier of the photosensitive adhesive. Because of these inherent characteristics, the fine graphics in the electronics industry are limited, and it is very difficult to print lines with a width of less than 30um. At present, there are t...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a new type that solves the unevenness of the photosensitive adhesive film surface (printing surface) in the screen plate-making process, and the influence and distortion caused by the air residue in the process of printing and vacuuming, and meets the requirements of fine graphic printing in the existing electronics industry. Screen Exposure Printing Method

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