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Several aspects of the quality of screen printing should be paid attention to

by:Senxi      2021-04-07
The screen must have a certain degree of strength and wear resistance to ensure good stretch screen and printing requirements, and can meet the printing of large quantities of products and the recycling and reuse of screen plates. The screen requires a smooth and clean mesh, uniform mesh size, squareness, uniform density, small elongation, low shrinkage rate, to avoid mesh deformation or mesh clogging, and to facilitate the production of printing plates and the implementation of printing operations. The screen should have chemical resistance, strong acid resistance, alkali resistance, and anti-aging performance. The influence of various solvents, inks, and slurries should be minimized. The film is easy to scrub, and the printing plate The image can be preserved, and the printing plate will not become fragile and scrapped due to long-term storage. The screen should have a certain degree of resilience, and the resilience should not be too large or too small. If it is too large, printing will easily cause the edges of the image to be unclear; if it is too small, the squeegee will be difficult to print. Reasonable flexibility should be determined based on various factors such as the size of the image, the distance between the screen frame and the substrate during printing, and the station scheduling of ink and paste. Article finishing: PCB screen printing machine /news.html
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