Metal foil: with 10 ~ 15μm thick molybdenum, Table Flags For Sale copper, stainless steel or other alloy foil.
Finish: fat, grinding, and pickling, such as pickling of the molybdenum foil, with 20% sulfuric acid and 5% potassium hydrogen tartrate mixture, liquid temperature 75 ° C water for 3 minutes.
Photographic film: from the role of the corrosion film, embossed imaging material, vary with the nature of the foil and etching available chromium salt sensitive adhesive such as lead foil.
Proofing: If the system without network template, Table Flags For Sale positive film a proofing; system network template (ie, at the same time with the template system out), you need the second copy, Personalised Football Flags the first sun graphic, after the sun; on both sides adhesive metal foil, side of the sun graphic, the other side of the sun, then both sides at the same time developing and corrosion.
Corrosion: material selected etching the metal foil, such as molybdenum foil etching: 1 concentrated sulfuric acid, nitric acid 1 part, water. Corrosion impregnation method, stirring method or injection method.
Stripping: Remove the photosensitive film on the metal foil, the water-soluble film available alkaline immersion; optical polymer film is gently erased after trichlorethylene dip Tang. Bike Flags For Sale
The film version of the framework: do no screen film or screen film coating, paste it into the metal frame. Can also be the first metal foil on the box, and then plate, in order to operate to prevent the foil folded, wrinkled but the choice of the framework should not react with the corrosive liquid.
Mesh etching method produced metal plates, the tone level of expression is greatly improved compared to conventional plates.
Production network plate, the first degreasing of metal roller, roller electroplating, plating layer on the photosensitive film and complete copy, developing, and finally out of the metal roller, Table Flags For Sale corrosion rotary metal silk screen version.
③ copper (zinc) plate photographic plate method. Such version of the text or pattern of copper (zinc), metal plates made of sunken metal plate and fill the nitrocellulose paint until the paint to dry, Custom Car Mirror Flags use fine sandpaper to the metal plate recess part of the outside paint removed, exposing the metal plate, and the rest is metal dent at the pattern of text to fill the nitro lacquer. Nitrocellulose Liquor pattern of the hollow text at the dissolving paste on, remove the metal plate. College Flags For Sale A metal plate can be produced much more blocks of the same pattern printed version of the text. This method is suitable for a text pattern area is not very large instrument, Table Flags For Sale the instrument nameplate , the process is as follows: Metal plate → polishing → → → photoreceptor of the sensitizer on the baking photographic plate → corrosion → Tu rubber → glue → painting → grinding paint → sticky.
Preparation of sheet metal: Bicycle Flag Holder copper or zinc plate. After polishing, polishing with charcoal powder.
On the sensitizer: the use of glue and dichromate sensitizer dubbed down a certain amount of metal plate by centrifugation allows the metal panel has a very uniform layer of photosensitive drugs. And then in the darkroom will be placed in a drying device for drying.