After the screen printing processing photosensitive adhesive coating, first let stand for 1-2 minutes, and then put the screen into the 40℃ or so of the oven to dry, monotonous after taking out in the dark frame for use. Attention: the screen must be dried, otherwise it will affect the stability of the screen.

Attach the film surface to the screen printing surface (convex surface) and expose it in a vacuum exposure machine. Exposure time according to the thickness of photosensitive glue and the energy of the exposure lamp and the requirements of the screen (popular circuit, welding, characters, screen required exposure time is not suitable), popular before the use of exposure accounting ruler to determine the exposure time, and then fixed the exposure time of the screen.

Attention: exposure time is too short, will constitute photosensitive glue easy to sparse, thick lines, welding block point is not firm, character number is not robust; Exposure time to a long, will constitute the development of endless or thin lines, such as the occurrence of qualitative disorder. Accordingly, special proposal, accurate exposure time rises original at scientific theory, before exposure in produce must use exposure ruler to decide exposure time, fix exposure time again next, do not by experience officer, blind lesson.

Remove the screen from the exposure machine and lose the film. First, wet both sides of the screen with soft, no-pressure cold water (20-30℃). After about 30-60 seconds of wetting, wash thoroughly with a high-pressure water gun until the image appears. Screen drying, and then carefully reflect the production of screen plate can meet the requirements of processing, assuming that the standard immediately do a good job of net closure obligations, in order to make the production staff to be used; Repair or remanufacture immediately if not required.