The stencil printing and letterpress printing, gravure printing, and lithographic printing are called the four major modern printing techniques. Screen printing is a major printing method in stencil printing. The same printing method as screen printing belongs to the stencil printing method, and there are also known printing methods, typing wax printing, stencil printing, and spray printing. There are many screen printing aliases, such as silk lacquer printing, silk leakage printing, stencil printing, stencil printing, screen printing, and so on. Screen printing originally used silk as a mesh material, so it was earlier known in the world as silk screen printing Silk Screen Printing. This name is still used in the International Online Information Retrieval Catalogue. However, in the publications, Screen&nbspPrinting has been used since the net material was replaced by a large number of synthetic screens.

Flat, concave, convex three kinds of printing methods are the printing method that the printing plate transfers the ink to the printing material, and the screen printing is the printing method that causes the ink to leak to the printing material through the mesh of the printing plate image. . Therefore, there are more types of inks that can be used for screen printing, and substrates are not limited to paper. Metals, plastics, and wood can all be screen printed.

The printing principle is the same as that of screen printing. The difference is that the printed version is not screen-printed. Fabric printing is the same as screen printing using screen printing, and the image copying process is almost the same, except that printing and printing do not use printing ink and use printing paste.

Screen printing is an ancient printing method. The basic principle of its printing is: part of the mesh of the screen printing plate can penetrate the ink and leak onto the substrate; the rest of the screen on the printing plate is blocked and can not pass through the ink, forming a blank on the substrate. The traditional plate making method is manual, and the more commonly used modern method is the photochemical plate making method. The plate making method uses a wire mesh as a support body to tightly stretch the wire mesh on the frame, and then coats the photo resist on the web to form a photolithographic film, and then the positive photo plate is tightly adhered to the plate. Exposure, development, the part of the printing plate that does not need to be exposed to ink forms a cured film, and the mesh is sealed, and the ink is impermeable to printing; the mesh of the part of the printing plate that is to be over-inked is not closed, and the ink is printed during printing. The ink is formed on the substrate. In the printing, the ink is poured into one end of the screen plate. The ink will not leak through the mesh hole on the substrate under the effect of no external force. When the squeegee is used, the ink is inclined at a certain angle. When pressure and ink are squeegeeed, the ink is transferred to the substrate under the screen through the screen to realize image reproduction.