PP ribbon Many friends still don't know how to print PP ribbon. In fact, there are two methods. So the master of PP ribbon factory simply let you know.
Direct platemaking
Method: The method of direct plate making is to first place the photosensitive film coated with the photosensitive material wrist plate base face up flat on the working table, place the stretched wrist net frame flat on the plate base, then put photosensitive paste in the screen frame and apply pressure coating with a soft scraper, after drying fully, remove the plastic film base, attach the photosensitive film wrist screen, and then use it for printing. After developing After drying, screen printing is made.
Process flow: stretched screen - degreasing - drying - peeling substrate - exposure - development - drying - revision - blocking
Indirect platemaking
Methods: The indirect plate making method is to first expose the indirect film, harden it with 1.2% H2O2, develop it with warm water, and dry it to make a strippable graphic negative. During plate making, stick the plastic film surface of the graphic negative to the stretched screen, press it to make the film stick to the wet screen, remove the film base, and dry it with wind to make a screen plate.
technological process:
1. Strained mesh - degrease - dry.
2 Indirect film - exposure - hardening - development - fitting - drying - revision - blocking.
3 Straight mixed plate making method: first, paste the photosensitive adhesive layer on the screen frame with water, alcohol or photosensitive adhesive, dry it with hot air, remove the substrate of the photosensitive film, and then print the plate. After developing, the screen plate is made.
