Why is the powder removal process necessary in the process of making color boxes? In the printing process of paper, in order to dry the ink as soon as possible, powder spraying technology is used to speed up the drying of the ink. Generally, only one side of the printed product needs to be sprayed and the other side does not need to be sprayed. However, in the powder spraying process, the dust It is not easy to be controlled, so there is often a lot of dust on the other side of the printed products that do not need to be sprayed, and these dusts have a greater impact on the coating of the printed products, which easily causes the fastness of the film to decrease, and the film is formed. And other issues.
Before the printed paper is coated, it is necessary to carry out the dust removal operation. Generally, several brush rollers are installed to remove the dust on the surface of the printed product. In order to improve the dust removal rate, a negative pressure suction device will be installed. Directly suck the cleaned dust away to avoid secondary adhesion of the dust on the printed products. If it is an automatic laminating machine, high-efficiency powder removal equipment is installed at the front of the machine, and the powder removal device can often achieve the effect of removing powder before the paper is glued.