Direct plate making
Method: The method of direct plate making is to first place the photosensitive film of the wrist base coated with photosensitive material on the work surface, and place the stretched wrist screen frame flat on the base, and then place it in the screen frame. Enter the photosensitive paste and apply pressure with a soft squeegee. After it is fully dried, the plastic film base is removed, and the photosensitive film wrist screen can be used for printing. After development and drying, a screen printing screen is produced.
Process flow: stretched net-degreasing-drying-peeling off the film base-exposure-developing-drying-revision-sealing
Indirect plate making
Method: Indirect plate making is to expose the indirect film first, harden it with 1.2% H2O2, develop it with warm water, and dry it to make a peelable graphic film. The film surface of the graphic film is tightly attached to the stretched screen during plate making. , By squeezing to make the glue film and the wet silk screen adhere to each other, peel off the film base, and dry it with air to make a silk screen.
1) Stretched net-degreasing-drying
2) Indirect film-exposure-hardening-development
3) Direct mixed plate making method
The photosensitive adhesive layer is first pasted on the screen frame with water, alcohol or photosensitive glue. After drying with hot air, the base of the photosensitive film is peeled off, then the plate is exposed, and the screen plate is made after development.