Silk screen printing process of plastic hardware surface

Screen printing, namely screen printing , refers to the basic principle that the screen is based on a photosensitive plate. The mesh of the graphic part of the screen printing plate can pass ink, and the mesh of the non-graphic part cannot pass the basic principle of ink. Printing to make a screen printing plate with graphics and text.

The basic principle of screen printing is to use the basic principle of screen printing ink in the graphic part of the screen printing plate to penetrate ink, and the basic principle of screen printing ink in the non-graphic part of the screen printing plate. When printing, pour the ink into one end of the screen printing plate, use a squeegee to apply corresponding pressure on the ink part of the screen printing plate, and move to the other end of the screen printing plate at the same time. The ink is squeezed from the mesh of the graphic part onto the printed matter by the squeegee while it is moving. Due to the viscosity of the ink, the printed matter is fixed within the corresponding range. The squeegee is always in contact with the screen printed matter and the printed matter during the printing process, and the contact line moves with the movement of the squeegee. Due to the corresponding gap between the screen printed matter and the printed matter, the printed matter generates the reaction force of the squeegee through its own tension, and this reaction force is called the resilience force. Due to the effect of resilience, the screen printed matter and the printed matter are only in mobile line contact, and the screen printed matter and other parts of the printed matter are separated from the printed matter. The ink and the screen are broken and moved to ensure the dimensional accuracy of the printed matter and avoid the original position of the squeegee. At the same time, the screen prints will also be gently lifted.

Screen printing consists of five elements: screen printing plate, squeegee, ink, printing table and printed matter.

The screen printing method has lower graphics accuracy than the photochemical method, but the process is simple, the production efficiency is high, and the cost is low, and it is suitable for mass production of products with low requirements.