Do you know what is the main differences between screen printing and other printing methods?
Today Vility tell you the differences:
①The three printing methods of flat printing, embossing and gravure printing are generally only suitable for printing on flat substrates. Screen printing can not only print on flat surfaces, but also print on substrates with curved, spherical and concave-convex surfaces. On the other hand, screen printing can not only print on hard objects, but also print on soft objects, which is not limited by the texture of the substrate. In addition, except direct printing, screen printing can also be printed by indirect printing method as needed, that is, screen printing on gelatin or silicone plate first, and then transfer to the substrate. Therefore, it can be said that screen printing has strong adaptability and a wide range of applications.
② Thick ink layer, strong three-dimensional effect, rich texture The thickness of the ink layer of offset printing and letterpress printing is generally 5 microns, that of gravure printing is about 12 microns, the thickness of the ink layer of flexographic (flexographic) printing is 10 microns, and that of screen printing The thickness of the ink layer far exceeds the thickness of the above-mentioned ink layer, generally up to about 30 microns. Thick screen printing for special printed circuit boards, the thickness of the ink layer can be up to 1000 microns. Braille dots are printed with foaming ink, and the thickness of the ink layer after foaming can reach 300 microns. The screen printing ink layer is thick, the printing quality is rich, and the three-dimensional effect is strong, which is incomparable with other printing methods. Screen printing can not only print in monochrome, but also register and screen color printing.
③ Strong light resistance and bright color. Because screen printing has the characteristics of missing printing, it can use various inks and coatings, not only pastes, adhesives and various pigments, but also pigments with coarser particles. In addition, the screen printing ink formulation method is simple, for example, the light-fast pigment can be directly put into the ink for formulation, which is another major feature of screen printing. Screen printing products have the great advantage of strong light resistance. It has been shown by practice that the maximum density value range measured by black ink on coated paper is compared, and the maximum density value of offset printing is 1.4, that of embossing printing is 1.6, and that of gravure printing is 1.8, while the maximum density value of screen printing is 1.4. The range can reach 2.0, so the light resistance of screen printing products is stronger than that of other types of printing products, and it is more suitable for outdoor advertising and signage.
④Large printing area. At present, the size of the area printed by general offset printing, letterpress printing and other printing methods is the size of the full sheet, and if it exceeds the full sheet size, it is limited by mechanical equipment. And screen printing can be used for large-area printing.
The above is the main difference between screen printing of screen printing machine and other printing methods. Our company mainly provides application solutions for flatbed screen printing machine and screen printing machine full-automatic production line.
