Screen printing refers to the use of a screen as a substrate, and through the photosensitive plate making method, a screen printing plate with graphics. Screen printing consists of five major elements, screen plates, squeegees, inks, printing stations, and substrates. The mesh of the screen printing plate can be transmitted through the ink, and the non-image portion of the mesh can not be printed through the basic principle of the ink. When printing, the ink is poured into one end of the screen printing plate, and a certain pressure is applied to the ink portion on the screen printing plate by the squeegee, and at the same time, the other end of the screen printing plate is moved at a constant speed, and the ink is scraped from the graphic during the movement. Part of the mesh is squeezed onto the substrate.