Screen printing technology - plate making

The preparation of armour fluid is after acid of polyvinyl alcohol, sulphur sodium and water mix, be in be in harmony of Shui Yuzhong dissolve, filter with 180 eye silk screen next, second fluid filters with filter paper after dissolve.
In fluid of armour of darkroom lieutenant general, second fluid two fluid mix, sufficient agitate, blow besmear to arrive on silk screen, blow in silk screen imprint the face blows besmear 2 times, clingy bear imprint of content presswork the face blows besmear the four boundaries of a piece of land or a construction site 6 times, natural air or blow with electric fan dry reserve.
Note: Glacial acetic acid can make polyvinyl alcohol dissolves quickly, develop is convenient also, can raise sensitive glue resolution, dawn red dye makes colloid shows bright-coloured red after sensitive solidify, not sensitive part is shown by water rinse out webby facilitating observation, get together ester of acetic acid ethylene makes sensitive glue is the same as webby and firm union, solution rises like force.
(2) exposure, show clear
Will take a picture the open plan photographic plate that has made is clingy on the silk screen that passes sensitive glue in Tu Bu, via fluorescent lamp or exposure of lamp of dysprosium v/LIT arrowhead, the lamp is apart from 50cm——60cm, time of exposure 6 to 8 minutes can.
The webby edition that crosses exposure uses Wen Shui or cold water develop, time is made an appointment with 1 to 2 minutes, or rinse with shower nozzle, the pressure of current shoulds not be too strong, lest develop bad sensitive glue, after waiting for image to appear entirely, be rinsed with clear water instantly and stoving.
After forme classics is repaired, in be not Chinese ink part to add varnish of Tu Yi layer to protect layout to presswork in order to have.

3, printability
Edition of carve of paper of paint film of dried meat gram can use oar of paste paint, coating, dye, painty, skin to wait to imprint makings, applicable lacquer paper, varnished cloth, mercery, paper, glass bear imprint of content presswork.
The forme of edition of carve of paper of isinglass paint film and edition of carve of paper of nitro- varnish paint film and edition of legal system of sensitive printing down is divided those who get used to edition of carve of paper of paint film of dried meat gram is all outside comfortable sex, sex of usable still dissolvent is painty, wait to imprint like too plastic printing ink, chloric ethylene, pvc makings, apply to plastic products, leather to wait bear imprint of content presswork.
Imprint makings function and make up
Manual net imprints involve an area wide, different bear imprint content expects to imprinting have different choice, the ground is common bear imprint of content presswork to introduce a few kinds to imprint now of makings make up a method.