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Basic process principle of screen printing:
The basic principle of screen printing is that the part of image and text is through ink and the part of non image and text is through ink。 When printing, pour ink into one end of the screen printing plate, apply certain pressure on the ink part of the screen printing plate with the scraper, and move towards the other end of the screen printing plate at the same time。 The ink is pressed to the substrate by the scraper from the mesh of the graphic part during the movement。 Due to the stickiness of the ink, the imprint is fixed within a certain range。 In the printing process, the scraper is always in line contact with the screen printing plate and substrate, and the contact line moves with the scraper movement。 Because there is a certain gap between the screen printing plate and substrate, the silk screen printing plate will produce a reaction force on the scraper through its own tension。 This reaction force is called back force Elastic force。 As a result of the effect of resilience, the screen printing plate and substrate are only in mobile line contact, while other parts of the screen printing plate are out of contact with substrate。 So that the ink and screen fracture movement, ensure the printing size accuracy and avoid rubbing dirty substrate。 When the scraper scrapes across the whole page, it lifts up the screen printing plate, and scrapes the ink back to its original position。 This is a printing trip。 Screen printing machine
Elements of screen printing process:
It consists of five elements, namely screen printing plate, scraping scraper, ink, printing table and substrate.
The formation principle of screen printing pattern
Screen printing is a screen plate made of screen cloth. The screen cloth is stretched on the screen frame, and the screen plate is made by optical plate making method. This screen plate hollows out some patterns and patterns, and then squeezes the scraper to make ink The pulp is transferred to the ribbon substrate through the hollow image and text, English logo pattern and other positions, so as to form the same image and text, English logo pattern as the original. This is the general printing formation of screen printing.
|Company Tel: 18913275566|
|Company Tel: 0512-57865236|
|Address: No.66, hehuabang Road, Zhoushi Town, Kunshan City|