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omental infiltration, water spray nozzle with an aqueous to the non-photosensitive portion (graphic section) copy, after the development of the Philippine film, until the shape is clear.

(4) paste film membrane: the film was exposed to the membrane surface attached to wire-line, on the back of people's with a rubber membrane plates or other straight, gently scrape paste, the film is firmly in contact with the net, immediately placed in an oven at a temperature of bake 8-12 minutes under the conditions of 55 ± 2 degrees, after drying, the screen frame is fixed to the plate bench proofing.

(6) to film methods: exposure, development process, when found defective version, the film can be immediately washed off with warm water to re-create. If the version has dried or after a period of time to film production, the available industrial sodium hypochlorite and water each one, soak for 10-20 minutes. Or 5% aqueous sodium hydroxide heated halftone processing, film can be removed.

C, between straight plate method: straight between direct and indirect method is the method of mixing the plate method, which differs from that of the indirect method, the indirect method in the first film after the film do go down to the wire image posted online, and straight France is among the first film after the film posted online exposure wire manufacturing an image.

Pretreatment

Signs up to the amount of printing materials are aluminum, copper, stainless steel, aluminum. There are also plastic, polyester, paper. Aluminium Signs are signs varieties is widely used kind, with a beautiful, bright, high hardness, wear resistance, wide application, dosage and other characteristics. Used in machinery, electronics, instruments, meters, household appliances, hardware, watches, cosmetics and packaging. Pre-treatment of aluminum substrates have a variety of methods, depending on the use, mainly degreasing, sandblasting, wire drawing, polishing, oxygen grease.