Automotive instrument panel meter making, circuit precision printing, pcb screen, tp screen, etc. are all processes that require screen printing mesh printing. The detailed steps are parsed as follows:
There are two methods for making screen printing meshs, one is the direct method, and the other is the simple method of making plates.
Indirect plate making
Method: The method of indirect plate making is to expose the indirect film first, harden it with 1.2% H2O2, develop it with warm water, dry it to make a peelable graphic negative, and make the graphic negative film surface and the stretched silk screen tightly when making the plate. , The adhesive film and the wet screen are compacted by pressing, the film base is peeled off, and the screen printing mesh is made by air drying. Process flow: 1). Stretched net-degreasing-drying 2). Indirect film-exposure-hardening-development 1and2-fit-blow drying-revision-sealing net 3) straight The indirect hybrid plate-making
method first attaches the photosensitive layer to the screen mesh frame with water, alcohol, or photosensitive ad
hesive, and after drying by hot air, peels off the film base of the photosensitive film, and then exposes the plate to a screen plate after development processing. .
Direct plate making method
Method: The method of direct plate-making is to place the wrist-coated photosensitive film coated with photosensitive material on the work surface and place it on the work surface. Put the photosensitive paste and apply pressure coating with a soft blade. After drying, the plastic film base is peeled off. The photosensitive screen is attached to the wrist screen to be used for printing. Technical process: stretched net-degreasing-drying-peeling film base-exposure-development-drying-revision-sealing net
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