The more carton prints on the market choose coated paper as facial paper, because coated paper has poor ink absorption, full-page or dot printing has become a major problem that troubles carton factories. This article focuses on how to print beautiful patterns on coated paper .
More and more carton boxes on the market have been changed from offset printing to flexible printing. The paper used has naturally changed. Coated paper has become a big choice for facial paper. However, a characteristic of coated paper is that the ink absorption is relatively poor, but such orders are often full-page or dot printing, which uses a large amount of ink and is difficult to print. How to produce such orders? Here are a few improvements!
Expert Tip: If you want to print well, the first thing for coated paper is to solve the problem of ink absorption performance. Allow ink to penetrate into the paper instead of accumulating on the surface of the paper.
Corrugated cardboard line
——Increase the temperature of the paper surface and reduce the amount of glue
When producing coated paperboard, the destructiveness of the facial paper should be considered. Generally, the surface of the coated paper is very smooth. From the point of view of the damage, only the temperature of the paper surface is increased. When the temperature of the paper surface is increased, the paper fibers will be destroyed. Can penetrate into the paper.
Secondly, the amount of glue should be reduced to ensure the smoothness of the cardboard surface.
Ink
——Increase ink toner content, reduce viscosity and reduce additives
When making ink, increase the toner content of the ink and reduce the viscosity of the ink. Because the ink absorption of the coated paper is relatively poor, the ink viscosity will increase when the ink viscosity is high. The more ink can not be absorbed, the paper will accumulate on the surface of the sheet, causing printing paste and deinking, and the transferability of the ink is reduced. In this way, the printing plate will be blocked. Only by increasing the amount of ink toner and increasing the luster of the added color can the viscosity be reduced while the printing color will not change.
It is better to control the viscosity of the ink between 8-10 seconds. The viscosity is lower and the amount of ink is reduced. The color is more saturated after the toner is increased. This improvement can not only improve the printing production efficiency, but also improve the printing quality.
Secondly, do not add too many additives when making ink. Because there are many avidin in the additives, it is not conducive to the use of ink itself, especially when printing coated paper.
Printing operation
——Printing pressure and plate pressure
When the printing machine is in production, it is necessary to reduce the printing pressure and plate pressure, so as to improve the printing quality more effectively.
Summary: When printing coated paper, you should focus on the cardboard and ink process, so that these products can be printed more perfectly.
Grow With Child Chair,Baby Seat,Infant Rocking Chair,Children'S Dining Chair
Zhejiang Lamon Technology Inc. , https://www.baby-chair.com