Paper wrinkle removal

There are many printing factories because of the limited production conditions, there is no special equipment for hanging paper and static electricity, so when using a small offset press for printing, often because the paper does not hang dry and static electricity processing and printing failure.

If the paper is not processed during printing, the print will wrinkle when printed. The wrinkles on the paper are in an "eight" shape, and the dragging is the most important point. In order to solve this problem, an adhesive tape with a width of 1 cm and a thickness of about 0.05 cm can be attached on both sides of the impression cylinder in order to achieve the purpose of tightening the printed sheets, thereby effectively eliminating the wrinkling of the printed sheets. The phenomenon. Although this move is contrary to the suspicion of printing the "Sanping" theory, successful practice has shown the feasibility of this method.

There are many reasons for the electrostaticity of printed sheets, in which the static electricity generated by the weather is dry, the water content of the paper is reduced, and the friction in printing is more common. The generation of static electricity is not only difficult to achieve normal printing, but also greatly reduces the printing efficiency and quality. In practice, the "steam" method can be used to eliminate static electricity on paper. The specific approach is to stack piles of paper on a paper holder and then sprinkle water with steam on the ground around the paper holder so that the paper quickly absorbs steam moisture and increases the water content of the paper, thereby eliminating static electricity. purpose.

Source: China Electrostatic Net