Screen printing operation, the quality problems and treatment

1 lines of distortion
Excessive number of screen printing, silk screening template induced relaxation; positioning loose network version with the substrates from the change; scraper and substrates between the angle wrong, or forced uneven; printed material consistency before thinning or too dry; rework the work piece the printing surface by the cleaning solvent after the stem at the end of play on the screen and so on.
2 patterns or lines fuzzy
India is expected to deploy too thin, scratch force India is too large; printed material transfer was uneven (printed material solvent dispersion Unevenness); arrangements will be net after net die solvent or dry cleaning agent, or when the surface of the work piece rework cleaning agent has yet to dry or clean; the first scratch and India, the Indian force feed block is too large, so that a small amount of printed material out of the mesh; printing scraper Movement (mobile) speed in the effective area substrates with a similar amount, half-way stop or repeat printing, etc.; printed material fineness and the selected wire mesh do not deserve.
3 pattern line edge burr, and the gap, cam, etc.
Unclean surface substrates, and has oil; printed materials have been sticky, net die not have dirt removed, printed material particles, high mesh wire Netcom, however; too fast drying silk screening, silk screening workplace ventilation ; quick-drying material and India failed to block, resulting in networks; scraping India forced uneven, large or small; substrates surface formation.

4 Ma points
India expected to have sticky, and with impurities, plugging holes; or printed materials have been sticky, scraping printed inadequate; printed material deployment mature enough, the residual air bubbles printed material does not run the net, after the bubble screen in the substrates on Zhanhua cause; substrates surface dirty, dust, etc., printing when forced improper light, irregular or scraping India and inadequate; substrates printed materials yet to dry, the dust caused by the storage place; printed material suitable conditions, the network version and the distance between substrates is too large; Prepress Screen not thoroughly cleaned.
5 silk screening in viscose-Screen
Scraping angle version with the substrates have problems between them, rather than a line contact, but contact with a small plane; screen with small distance between the substrates, or Network version of the tension; screen printing, the embossing force is too large Mexico thick sticky networks; printed material is too thick and so on.
6 solutions
Careful analysis of the impact of the quality of the reason why, for reasons arising to solve, and those non-Indian operated scrape quality problems arise, such as Stretching the problem, the best distance problem, the production of silk screen template problem, surface treatment, as well as printed material matching and so on will affect the screen quality is good or bad.
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