Requirements for the best screen printing screen

1. Keep the tools clean and ready for use at any time, and the plate-making room should be free of dust.
2. Check the screen tension. All multi-color overprinted screens need to have the same tension.
3. Fully degreased: use a soft brush and a source of water with a certain pressure for cleaning.
4. Dry at a temperature below 40 ° C.
5. According to the method recommended by the manufacturer, the photosensitive adhesive should be prepared in advance.
6. Use a clean, slightly rounded edge sizing device to apply the glue, the area of ​​the glue should be at least 10% smaller than the inner diameter of the screen frame.
7. When applying glue, we must first start from the printing surface. The number of times of glue application depends on the requirements of the solid content, viscosity, screen mesh number of the photoresist and ideal screen thickness.
8. When drying the screen, the printed side should be placed face down (to avoid the photosensitive glue flowing back to the ink side).
9. The screen used for fine line printing and halftone printing needs to be coated with one or more photosensitive adhesives on the printing surface after each drying until the photosensitive adhesive layer on the printing surface is flat.
10. Keep the glass vacuum blanket of the exposure machine clean. Check if the film is correct? Does the film surface fit the screen? Does the blackness meet the requirements and is it placed correctly? And make the exposure machine have enough real time.
11. Set the correct exposure time and keep records. Every three months or when the exposure decreases, the exposure time should be tested, adjusted, and corrected.
12. Keep the exposed screen away from the light source (daylight, incandescent lamp).
13. When developing, it is necessary to wash and develop with water with appropriate pressure, especially to wash the ink surface adequately without washing until the surface is not slippery. After cleaning the underexposed photosensitive resist film plate will appear film release phenomenon.
14. Use soft, clean paper, a clean cloth or a vacuum absorber to absorb excess water.
15. Repair the screen with appropriate mesh materials.
16. Write all parameters on the screen: thickness, exposure time, date, name.

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