Screen printing screen printing He can print the most types of materials, can print a lot of things that can not be printed by the machine, so it is called "universal printing", so today, the new technology is widely used, still has a place in the market. The main printed items include: T-shirts, various pens, mineral water buckets, balloons, badges, metal, plastic, glass, leather, paper, machine operation panels, etc., regardless of the shape of the printed things, can be used Screen printing, the price has a certain advantage and a certain disadvantage for the big printing factory.
Screen printing mesh spacing is not suitable. During the printing process, the blade pressure should be increased or decreased, which will affect the quality of printing, resulting in poor copying accuracy, blur, bubbles, ghosting, dot loss, edge definition. Poor, moiré, incomplete patterns, etc. The network distance is not too large, and it will cause other problems. For example, the scraper needs to increase the squeegee pressure so that the screen can touch the substrate, but before the screen is in contact with the substrate, the ink is squeezed onto the printing surface of the screen. If this is serious, it is bound to be A printed pattern on a dirty substrate or substrate. Excessive squeegee pressure can also damage printed images, resulting in dot deformation or dot enlargement. The greater the blade pressure, the faster the rebound speed of the screen after printing, the ink can not be completely transferred to the substrate, which will lead to the appearance of moiré, incomplete pattern, drawing, bubbles, poor edge definition, etc. Printing rickets. Another cause of poor print quality is the low tension of the screen and the small mesh distance. In this case, the screen will wrinkle during the doctor blade squeegee, forming ripples on the printed matter, eventually causing severe image distortion and ghosting.
The importance of screen printing mesh distance and how to set it up has already told you, be sure to choose the right mesh distance.
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