Printing factory printing signs of technical standards is what?

by:ShunDing     2020-09-13
Printing factory printing signs of technical standards is what? Screen printing plate production process, the decisive role is the silk screen printing and printing substrates before processing technology and key points of printing and screen printing ink. Silk screen printing plate: 1, the film - carving method - - - - - -> printing factory printing signs of technical standards is what? Screen printing plate production process, the decisive role is the silk screen printing and printing substrates before processing technology and key points of printing and screen printing ink. Screen printing plate: 1, paint film engraving method: printing plate is one of the manual plate making method, is relatively simple. Can be printed normally not too delicate monochrome pattern and text. ( 1) Spray system generated film paper: use tracing paper paste stick on flat boards, with the combination brush pen 1 rubber water ( Volume ratio) 1 set, gasoline, evenly coated on paper, dry spray soft varnish after 35 times, each time after spraying, with 40 ~ 50 degrees in oven drying, spray paint film thickness to 5 ~ 6 millimeter advisable, coating should be bright, smooth, no bubbles, no stain. ( 2) Carving graphics: stick film paper on graphics, press with kedao, compasses knife, ruler graphic carvings, gently remove paint film. ( 3) Quote: after carving graphics, can the past do silk screen frame on a quote. Method is to put the carved film under the net frame clamp, use cotton with a little thinner in the above after wipe gently, until paint film and screen glued down. Off tracing paper to dry after a few minutes away. If the paper is not gone completely, usable cotton touch water wipe. Blank part with lacquer coating layer, screen mesh plug. Printing after dry. Printing factory printing signs of technical standards is what? 2, carbon paper plate burning method: is a kind of relatively simple manual plate making method. ( 1) Sensitive paper cutting, paper is a kind of mixture thicker coating and oxygen barium base paper made of carbon paper, according to the size of the graphics lay aside. ( 2) Sensitization: in 500 and 20 g in the preparation of ammonium dichromate solution soak for 3-5 minutes, remove carbon paper, the water distribution. ( 3) Exposure: stick carbon paper flat in a clean glass, film, coating on the male figure polyester film negatives, using printing-down machine exposure, exposure time 8 to 12 minutes. ( 4) Development: after exposure in 40 ~ 50 degrees warm water soak for a few minutes, the film and Yang chart with zinc oxide base paper from nature, carefully developed with warm water to form the text clear so far. ( 5) Quote: the system to put the good guy good screen net box below the first, on the screen covered with several layers of newspapers, the pressure on the glass plate, with the weight of 1-2 kg/cm2, the film and screen stick firmly, remove the weight and the newspaper, use the electric stove dry film, then remove the base paper, film graphics to the screen on. Qualified carefully check whether there is any defect on the graphics, the graphics on the screen around the coated with a layer of nitrocellulose enamel protection, the printing plate in a plate, and be ready to print. Scope of application of this process method is the same as the film engraving method. 3, photographic plate making method: screen printing signs printed CARDS used in the precision demand is higher, generally USES the advanced direct, indirect, direct between three kinds of photographic plate method.
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