Sensitive table is the core tool of silk screen making. It is also an indispensable tool in the copying of drawings, manual drawing and screen repair. The production area of ​​the photoreceptor is slightly larger than a full sheet of paper (80~110cm). The basic structure of the photoreceptor is that fluorescent tubes are arranged closely in the wooden box. There is a 2cm interval between the lamp and the lamp. A thick glass is installed on the lamp and the light source is away from the glass. 12 to 15cm distance. The sensitization stage is more robust because the sensitization stage is subjected to a certain amount of pressure during screen plate making. The screens are exposed on the platen and need to be flattened and compacted. Therefore, it is necessary to prepare several pieces of thicker glass that are smaller than the inner diameter of the frame, and blankets or sponges that are used as underlays. Heavy objects such as sandbags are also prepared.
In the room where the table is placed, pull the curtains to avoid direct light on the glue screen, which can act as a dark room for screen exposure. It is best to prepare a small wattage red light in the darkroom or cover the flashlight with a red cloth for the darkroom operation.
The darkroom is as close as possible to the source of the water, and it is better to have a flushing tank. It is also possible to wash in the toilet where there is water. Tap water can handle general screen wash.
Acrylic Knit Fabric Printing Process Source: China Washing & Finishing Industry Information Center Posted: 2006-06-01
Acrylic knit fabrics are mainly decorative fabrics. In addition to paint printing, disperse dyes and cationic dyes can also be used for printing.
Cationic dye printing paste composition:
Dye/g x
Glacial acetic acid (98%)/mL 15
Urea/g 15
Ancient Sin A/g 10
Water y
NaCLO3/g 1
Long paste/g 400~500
Total/g 1000
Process: printing → drying → steaming → post-processing.
Steaming conditions: 100 °C, 30 ~ 45min, or 130 °C, 15min.
After treatment: cold wash → hot wash → detergent 1227 cleaning → hot wash → cold wash.
Source: China Washing & Dyeing Industry Information Center
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