Screen printing meshs require ink to be used. It is also a crucial step. Ink is an important material when packaging printed materials. Printing inks can be printed on pictures, text tables, etc. They can be mixed very well and repeatedly rolled into a viscous gelatinous fluid. It is common knowledge that the ink is composed of a color former, a film-forming substance, a solvent, and an auxiliary agent. It should be understood that the color former is the primary component of the printed color, and its amount is about 12% to 20% of the total ink composition; the film-forming substance determines the fixing of the ink on the substrate, usually by several functions. The resin is composed of a resin, and its share in the ink is about 20% to 25%; some of the ink rims are solvents and auxiliaries.
The texture of the rich offset and embossed ink layer is generally 5 microns, the gravure is about 12 microns, the flexographic (aniline) printed ink layer is 10 microns thick, and the screen printed ink layer thickness far exceeds the above ink. The thickness of the layer is generally up to about 30 microns. Thick screen printing for printed circuit boards with an ink layer thickness of up to 1000 microns. Braille is printed with foaming ink, and the thickness of the ink layer after foaming can reach 1300 microns. The screen printing ink layer is thick, the printing quality is rich, and the three-dimensional feeling is strong, which is incomparable with other printing methods. Screen printing can be done not only in monochrome, but also in color and screen color printing. Bright color Because screen printing has the characteristics of missing printing, it can use various inks and coatings, not only using pastes, adhesives, various pigments, but also coarser pigments. In addition to this, screen printing inks are adjusted. The method is simple, for example, the light-resistant pigment can be directly placed in the ink, which is another major feature of screen printing. Screen printing products have great advantages in light resistance. It has been shown by practice that the range of maximum density values measured after one embossing on the coated paper using black ink is 1.4, offset is 1.6, gravure is 1.8, and screen printing has a maximum density value range. Up to 2.0, the light resistance of screen printing products is stronger than that of other types of printing products, and it is more suitable for advertising and signage outdoors.
By comparing the above screen printing mesh inks with other printing methods, we should know the benefits of screen printing mesh inks. Maishi professional and technical personnel told everyone that screen printing meshs can use a variety of inks. Not limited by one type of ink. Oil-based inks, water-based inks, dye inks, powdered inks, etc. can be used, and the application surface becomes wider.
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