Screen printing meshs are one of the printing methods, but they are also among the best in many printing methods. Because of its own advantages, it can be called universal printing. Printing adaptability. The stereoscopic effect of the screen printing net is still not very clear. Let's take a look at the following:
The screen printing mesh has a strong three-dimensional effect. 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 performed not only in monochrome, but also in color registration and screen printing.
Problems that may be encountered in screen printing exposure. Hebei Maishi Wire Mesh Trading Co., Ltd. is a manufacturer engaged in screen printing network for many years. There are professional technicians who ask questions about the problems arising from the use of technology.
This is a quality problem with the photoresist.
Under the premise of not changing the brand of the photosensitive adhesive, the secondary exposure method can be used to increase the strength of the photosensitive adhesive.
1. Operate according to the exposure time that you think is satisfactory, rinse and dry.
2. Curing according to normal procedures.
3. Double exposure/cleaning after applying the sensitizer again on both sides of the plate after washing/drying.
Maishi professional technicians told that double exposure can increase the strength of the screen.