The full name of the screen printing machine is "Flat Screen Printer". It is a device that prints solder paste or patch glue onto the PCB pads through the screen. It can be divided into vertical screen printing machine, inclined arm screen printing machine, rotary screen printing machine, four-column screen printing machine and automatic screen printing machine. Mainly used in the electronic processing industry, printed circuit board silk screen logo, instrument shell panel logo, solder paste printing during circuit board processing, etc. Screen printing is to stretch silk fabric, synthetic fiber fabric or metal mesh on the screen frame, and use the method of hand-carving paint film or photochemical plate making to make the screen printing plate. Modern screen printing technology uses photosensitive materials to make a screen printing plate (make the screen holes of the graphic part of the screen printing plate through holes, and the screen holes of the non-graphic part are blocked. live). During printing, the ink is transferred to the substrate through the mesh of the graphic part by the squeeze of the squeegee, forming the same graphic as the original. The screen printing equipment is simple, easy to operate, easy to print and plate making, low cost, and strong adaptability. Screen printing has a wide range of common printed materials: color oil paintings, posters, business cards, binding covers, product signs and printed and dyed textiles, etc.
In terms of environmental protection, screen printing is a small pollution process. First, the plate-making process produces developer, and the ink used produces ink barrels. During cleaning, washing wastewater or waste rags are generated. Therefore, the ink selection in Stenter is convenient and recommended Customers choose environmentally friendly inks!