Screen printing plate required by silk-screen printing

Abstract

The invention relates to a screen printing plate required by silk-screen printing. The screen printing plate required by silk-screen printing comprises the following steps of S1, manufacturing a net film gauze; S2, tightening and fixing the net film gauze with the size required by the to-be-manufactured screen printing plate to a screen frame; S3, adopting a liquid substance which is not dissolved by an organic solvent after being cured, and spraying the liquid substance on the printing surface, opposite to a net film, of the net film gauze in a liquid dot form by using a digital precise spraying device to form a dot-matrix cured film; and S4, after the curing film is cured by adopting an illumination, heating or natural drying device, heating the net film corresponding to the area where the pattern is located or heating the whole net film in a heating mode, and removing the net film which is shrunk and melted due to heating. The liquid substance is AB glue or UV ink, so that the problem that a plastic film is prone to being damaged is solved, screen developing does not need to be washed, water resources are saved, no harm is caused to a human body, pollution to the environment is avoided, and organic solvent resistance, high strength, good adhesive force, scrubbing resistance and high gloss are achieved.

Description

technical field [0001] This application relates to screen plate making, in particular to a screen plate required for screen printing. Background technique [0002] At present, there are two types of screen plate making on the market: traditional screen plate making and digital plate making: [0003] 1. The traditional plate-making process is to fix the screen on the screen frame and apply photosensitive paste or photosensitive glue, then design the printing pattern through design software and make film, then paste the film on the screen printing surface and put it into the exposure machine Expose inside, rinse the screen with water, develop, and dry to make a screen printing screen. [0004] There are three plate-making methods, the direct plate-making method: apply a certain thickness of photosensitive paste on the stretched screen plate, dry it after coating, and then use the plate-making negative film to fit it into the plate-making machine for exposure, after developing...

AI Technical Summary

Problems solved by technology

[0005] The disadvantages of the above three plate-making methods are: after exposure, a large amount of water needs to be used to wash off the unexposed photosensitive paste or photosensitive glue on the screen to display the pattern, which needs to waste a lot of water resources. The photosensitive paste or photosensitive glue uses chromate and heavy Nitrogen salts are photosensitizers, because the double complex salts contain chromium ions, which are poisonous to the human body and easily cause public nuisance

[0007] The disadvantages of the above two digital plate making processes are: the plastic of the resin film screen, the resin film is not resistant to organic solvents, the screen cannot be cleaned after printing with oily ink, and the plastic film is very easy to be physically damaged, resulting in damage to the screen [After the screen is printed with oil-based ink, the ink on the screen needs to be wiped clean with organic solvents (toluene, xylene, butyl acetate, cyclohexanone, isopropanol, etc.), but the resin film layer in the screen is not Resistant to organic solvents, and the resin film layer on the mesh is easily damaged by physical damage, resulting in damage to the screen]

After the laser plate is perforated, there are residues and unevenness on the layout, and it is not easy to remove. It is easy to block the mesh during the cleaning process, and the laser equipment is expensive.

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