Screen release for repeated use of screen printing plates
Stripping refers to printing after the screen printing plate, the plate is no longer used, and plans to re-plate. In order to reduce the waste of the screen and reduce the cost, the cured photosensitive material on the screen plate can be peeled off from the screen, cleaned and dried, and then used again. The process of peeling off the screen plate using a photosensitive material is called film removal.
General release film release agent. The main components of the release agent are: bleaching powder, alkali hypochlorite, hydrogen peroxide, caustic alkali, ammonia, potassium permanganate, oxalic acid and so on.
The process of stripping process is: First, clean the ink on the screen plate when removing the film, then wipe the two sides of the screen plate with the stripper or soak in the stripper, and soak for about 5-10 minutes. When the film is whitened, it can be rinsed with water (or scrubbed with a sponge). After the film is removed, the screen is rinsed with water and dried, and it can be used again for coating.
Source: Shunhe Printing Materials Co., Ltd.
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