How to properly use screen printing ink squeegee?

Screen printing ink scraper is a common tool for printing workers. If you are not sure, it will affect the effect of printed matter. The following author I teach you how to use ink squeegee tips. hope that it can help us.

Add a few drops of oil fine grinding

Before installing the screen printing ink squeegee, usually first add a few drops of oil on the stone for coarse grinding, and then use 1000 # water-resistant emery cloth with a few drops of oil fine grinding. Add a few drops of oil can play a lubricating effect, reduce friction, grinding results are generally good, may wish to try.

Most printers often encounter printing ink color or light or dark phenomenon, especially when printing mesh transfer products, which in addition to the ink transfer of the outside, the doctor blade and the plate cylinder angle can not be ignored, large Most gravure machine can choose 45 ° ~ 65 ° angle. Angle is small, printing ink deep color, good gloss, but poor ink scraping effect, easy to scratch net, graphic blur phenomenon. The angle is too large, the shallow part of the network may not be able to achieve the transfer of ink, such as the main pattern with a shadow printed out, and its shadow but not printed out and so on. The solution is to adjust the Screen printing ink squeegee position, and increase the turret position, try to make the ink all transferred to the base printing film.

 Adjust screen printing ink squeegee angle

To adjust to the best point of view, but also consider the network depth, screen printing scraper position and printing speed and other factors. Network points too deep, the angle should be larger.

Screen printing ink squeegee pressure on the product quality will have a very important impact, the size of the pressure according to network depth and graphic level adjustment. If the plate cylinder is too long and corrode intact, the applied pressure will be greater. Because of corrosion deep intaglio network, but the edge of the pattern prone to burr and so on. However, the pressure is too easy to scratch the ink in the shallow mesh hole, resulting in shallow net part printed out; and the pressure is too large will make the contact angle smaller, hard to scratch the excess ink page layout, resulting in accumulation of ink scraper, resulting Cut line. Under normal circumstances, good working ink scraping system, the contact angle of about 60 ° is appropriate.

Pay attention to grasp the intensity of screen printing ink squeegee

Screen printing ink squeegee too light pressure will not work, will have haul hair and other failures. The solution is appropriate to the blade edge blade and the printing plate at the interface of hair dryer, hair dryer available special hair dryer.

Screen printing  Ink scraper used for a period of time there will be burrs, rips and other phenomena, the doctor does not work effectively knife, then you need to sharpen or replace the new ink scraper. In actual work, sometimes the screen printing squeegee rupture phenomenon can be polished or padded to extend its service life, to save the cost of screen printing ink squeegee, and secondly, to solve the corresponding quality problems.

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