玻璃标牌丝印技术（Glass screen printing technology）.doc

玻璃标牌丝印技术（Glass screen printing technology） The net box below the prepared version on the first game to good screen, covering several layers of newspapers in the screen above, the pressure on the glass plate, with the weight of 1-2 kg / cm2, the film and the screen is firmly attached, remove the weight and use the electric newspaper, drying the film, then the base paper, glue figure: to screen film. If the paper is not completely missing, available cotton wet wipe. Exposure: the carbon paper flat on a clean glass, plastic film to cover, on top of a positive plate with polyester film, printer exposure, the exposure time of 8-12 minutes. Light sensitive paper: sensitive paper is a kind of carbon paper coated with oxygen, which is made of oxygen barium base paper. It is cut according to the size of the figure. Boring after a few minutes, the tracing paper exposing the missing. If the plate has been boring or after a period of production to go to the membrane, you can use the industry, sodium hypochlorite and water each, soaked for 10-20 minutes. Spray paint: tracing paper engraved with paste on a flat board with paibi rubber water 1 (volume ratio), gasoline 1 fine, evenly coated paper, dry after spraying soft varnish 3 - 5 times, each time after spraying, in an oven with 40 degrees ~50 the degree of drying, spray paint film thickness to 5~6 mm is appropriate, the paint film should be light, uniform, no bubbles, no stain. Line film is a film of polyvinyl alcohol glue as the main body of the sensitive glue film film is 0.12-0.06 mm in transparent plastic base to gelatin as the main body of emulsion coating, before use with graph size, each edge width 20 mm, use a cloth to erase the clean dirt powder film. The dull temperature of the box, more fanciful, is the dull case with adjustable temperature. Sensitization: soak in the solution for 500 cents and 20 grams of ammonium dichromate is formulated in 3-5 minutes, remove the carbon paper, the moisture to dry. Paste film film