Ink screen printing squeegee pressure and angle adjustment skills

In order to facilitate the ink screen printing squeegee adjustment, and to ensure the quality of screen printing products, printing plate ink can be shaved clean, do not produce knife wire or version of the fog defects, so the ink screen printing scraper mechanism is pided into several Functional devices, ink screen printing squeegee institutions various departments and functional parts affect the quality of printed matter from different aspects. Screen printing squeegee pressure is too large, will reduce the ink transfer rate, the roller and scraper blade wear are great. In general, the contact angle α take 45 ° -65 ° is appropriate, the size of the angle of the printed material, the use of ink and printing speed to determine.

Ink screen printing squeegee mechanism installation accuracy is also a major factor affecting the printing quality, installation of ink scraper mechanism, you must ensure that the ink screen printing squeegee floor level, if the ink scraper floor level accuracy is poor, it will make scraper floor About inconsistent height, resulting scraper height inconsistencies, so that caused by the pressure around the ink screen printing squeegee inconsistent, thus affecting the quality of printed matter. Of course, the best working condition is to use the minimum screen printing squeegee pressure to scrape off the ink outside the roller net pit, thus not only saving the squeegee blade, but also the printing plate roller is not easy to be worn. In this way, the trajectory of the ink squeegee on the printing plate roller can be changed, Impurities through the left and right belt to go down to reduce the knife line, so that the ink scraping effect better.

The overall rigidity of the ink screen printing squeegee mechanism is also a major factor affecting print quality, especially high speed gravure printing presses. Therefore, the ink screen printing squeegee adjustment is crucial, in the long-term production practice found that as long as the ink screen printing squeegee mechanism of the various functional devices in the printing before the appropriate adjustments can be produced to avoid affecting the quality of printed defect.

screen printing squeegee Screen Printing Squeegees screen printing squeegee pressure

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