The key link of the screen printing machine's printing quality is the dominance of the screen printing machine's printing speed and printing pressure. The effect of the printing pressure of the screen printing machine is to ensure that the screen and the printing process are in sufficient line to touch. Under this prerequisite, the lower the printing pressure of the screen printing machine, the better. As the working pressure is greater, although the scraper will contact the screen better, the degree of deformation of the screen and the degree of the scraper being inserted into the ring are high, so the ink transfer is small.
The larger the deformation of the screen printing machine blade, this will cause great damage to the oil filling condition, and will also expand the deformation of the screen, and the sliding friction between the screen printing machine blade and the screen will also increase. Screen friction also harms the printing speed of screen printing machines. Screen printing machine printing speed refers to the speed of the blade when the screen printing machine is printing.
One-knife assist is very slow. Although the ink filling is good, the infiltration of printing ink will occur at the edge of the pattern, which will cause the pattern to expand. The printing speed of the screen printing machine will be too fast, which will cause insufficient ink filling, imprecise imprints, and will also cause ink release speed No printing speed, the formation of adhesion segments is too long and endanger the printing quality. Printing ink has poor viscosity and large flowability.
The screen printing speed is moderately slow, and the opposite is also the case; the screen with a high screen mesh number and a small total area of the perforation ring can slow the speed of the scraper during the silk screen. In the whole printing process, we must not only grasp the speed of the scraper speed, but also pay attention to the uniformity of the scraping speed. Assuming that it is fast and slow, there will be vertical marks on the printing process, which will harm the printing quality.