Semi-automatic screen printing machine, screen printing consists of five elements, namely, the screen printing plate, scraper squeegee, ink, printing units, as well as substrates. The basic principles of screen printing: the use of screen-printed version of the graphic part of the mesh through the ink, the graphic part of the mesh through the basic principle of the ink printing. Pour ink semi-automatic screen printing machine printing on one end of the screen printing plate, put some pressure squeegee scraper parts of the ink in the printed version on the other end of the move towards the screen printing plate. Ink in moving the scraper from the graphic part of the mesh extrusion to the substrates. 
 Viscous leaving ink imprinted solid scraper is always within a certain range, semi-automatic screen printing machine printing process with the screen printing plate and substrate was the line of contact, the contact line moves with the scraper moves, the screen printing plate maintain a certain gap between the substrates, making the semi-automatic screen printing machine printing screen printed version through its own tension and the reaction force to the scraper, this reaction force is called resilience. Because of the role of resilience, the printed version with the substrate only was the mobile line of contact, while other parts of the substrates of the screen printing plate from the state. Ink and screen broken campaign to ensure the dimensional accuracy of the printing and avoid soiled substrates. Looked up when the scraper scratched the entire layout, while the semi-automatic screen printing machine screen printing plate lift, and scuffing the ink back to the initial position. So far as a printed itinerary. 

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