The method of control the quality of the screen in the plate making:
① defatted to be thorough;
② sensitive adhesive can not have grease pollution;
③ oven to be clean, the coated screen with a sensitive adhesive can not be used together with the screen which is cleaned by solvent ;
④ sensitive adhesive layer not be too thick or too thin;
⑤ the exposure should be sufficient
Second, reduce the friction on the screen in the printing process to, such as:
① photoresist and ink can not have any small impurities;
② keep clean in the workshop, it is recommended to use a vacuum cleaner;
③ don’t use large particles of printing ink, such as with sands, silver sand, you can choose to use fine sand and fine silver sand;
④ when printing, choice slow-drying solvent is more appropriate, because the quick-drying solvent is easy to cause network plug, it will have impact on the speed and pressrun of the screen printing;
⑤ printing lights should use the yellow light to avoid the adhesive harding and crisp of the non-graphic parts, affecting the pressrun of the screen printing.
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