(3) Posted: After carving patterns in the past can be posted well in advance on the screen frame. The method is to cut a good film on the frame below the pressing, with cotton
dipped a little thinner on top and gently rub the complex to screen the film and the cement up. After drying for several minutes, the tracing paper torn off. If the paper is not fully out, the
available cotton wet wipe. Blank part coated with lacquer, the screen mesh blocked. To dry after printing.
2, carbon paper copy method: also a relatively simple manual plate method.
(1) cut sheet paper: photographic paper is coated with a thick mixture of barium on oxygen who made the original paper, carbon paper, according to the size of the graphic cut a
good backup. (2) sensitization: immersed in 500 ml and 20 g of ammonium dichromate prepared solution for 3-5 minutes, remove the carbon paper, the water diversion dry.
(3) Exposure: The carbon paper flat on a clean glass, film upward, positive image in the top cover polyester film negatives with Shai Banji exposure, exposure time 8-12
minutes.
(4) development: after exposure at 40 to 50 degrees warm water soak a few minutes, so that film and positive plates and zinc oxide paper naturally out with warm water to force
the developing carefully shaped text is clear.
(5) Posted: good version on the system to be a good stretch mesh screen frame below the screen covered in several layers of newspaper, the pressure on the glass to 1-2 kg / cm
of pressure, this when the film and screen firmly affixed, remove the weight and newspapers, dry film with an electric furnace, and then remove the paper, film graphic you go to the wire-line.
Carefully check whether the graphic defects, after passing the wire around the graphic medium coated with nitro enamel protection, the silk screen printing plate mounted on the carriage is to
prepare for printing. Scope of this same film engraving plate method.