Screen printing refers to the use of silk screen as a plate base, and through a photosensitive plate making method, made into a screen printing plate with pictures and texts. Screen printing consists of five major elements, screen printing plate, squeegee, ink, printing table and substrate. Use the basic principle that the mesh of the graphic part of the screen printing plate can penetrate the ink, and the mesh of the non-graphic part cannot penetrate the ink for printing. When printing, pour ink on one end of the screen printing plate, use a squeegee to apply a certain pressure to the ink part on the screen printing plate, and at the same time move toward the other end of the screen printing plate at a uniform speed, the ink is removed from the image and text by the squeegee during the movement Part of the mesh is squeezed onto the substrate.
Screen printing is to stretch silk fabric, synthetic fiber fabric or metal mesh on the screen frame, and use the method of hand engraving paint film or photochemical plate making to make the screen printing plate. Modern screen printing technology uses photosensitive materials to produce screen-printed oil paintings, prints, posters, business cards, binding covers, commodity packaging, commodity signs, printed and dyed textiles, glass and metal and other flat carriers by photoengraving.