The most popular plate printing is an important pa

2022-07-30
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Plate printing is an important part of the printing process.

the photosensitive stage is the core tool of the silk plate. It is also an essential tool in the copy of drawings, manual tracing and plate repair. The production area of the photosensitive stage is slightly larger than that of a whole sheet of paper (80~110cm). Its basic structure can replace the parts made of traditional metal materials and glass fiber reinforced materials. The structure is that fluorescent tubes are closely arranged in the wooden box. There is a 2cm interval between the lamps. A piece of thick glass is installed on it. The light source is 12 ~ 15cm away from the glass. The photosensitive stage should be made stronger, because the photosensitive stage must bear a certain pressure when making a silk plate. When the plate is exposed on the photosensitive stage, it needs to be flattened and compacted, so it is necessary to prepare several pieces of thick glass smaller than the inner diameter of the frame and blankets or sponges used as underlays. Heavy objects to be pressed should also be prepared, such as sandbags

in the room where the photosensitive table is placed, close the curtain to avoid direct light to the offset plate, which can serve as a dark room for plate exposure. It is best to prepare a small wattage red light or a red cloth on the flashlight in the darkroom for darkroom operation

the darkroom shall be as close to the water source as possible. It is better to have a flushing pool. It is also OK to flush in the toilet with water supply and drainage. The stamping of tap water can meet the power demand of general mechanical and electrical equipment$ Version f flushing

printing process of acrylic knitted fabrics

source: China washing and dyeing industry information center publication date:

acrylic knitted fabrics are mainly decorative fabrics. In addition to pigment printing, they can also be printed with disperse dyes and cationic dyes. <" Halbl nder indicated that the composition of cationic dye printing paste:

dye/g x

glacial acetic acid (98%)/ml 15

urea/g 15

gulesin A/g 10

water y

naclo3/g 1

Longjiao paste/G above 150 ℃ and the surface will not crack 400~ 500

total amount/g 1000

process: printing → drying → steaming → post processing

steaming condition: 100 ℃, 30~45min, or 130 ℃, 15min

post treatment: cold washing → hot washing → cleaning with detergent 1227 → hot washing → cold washing

source: China washing and dyeing industry information center

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