Guangzhou Zhongzhinan Supply Chain Co.,Ltd. , https://www.gzzhongzhinan.com
1. When the paper is napped, foamed or slightly dropped, the paper can be air-pressed before printing. Under the action of pressure, some paper and paper powder are adsorbed onto the blanket to reduce the paper pulling and falling. The role of the powder phenomenon. At the same time, after the paper fibers swell and swell, the paper structure becomes tighter under pressure, and the printability is improved. In addition, the surface tension formed by the water molecules filled in the capillary pores on the surface of the paper can adsorb the coating layer on the surface of the paper, and can also achieve the purpose of changing the physical properties of the paper and improving the printability.
2. When the paper is rough and foaming is serious, affecting the quality of the printed product, adding about 3% of the adhesive to the ink is beneficial to the packaging and printing factory to solve the problem. However, special attention should be paid to the fact that the amount of the adhesive should not exceed 5%, otherwise it will not only affect the gloss of the printed product, but also easily cause the dirty version.
3. When the paper is out of powder and the hair is pulled more seriously, you can also print a layer of base oil on the surface of the paper before drying. Due to the improved permeability of the paper surface, the quality of the printed product, especially the gloss of the printed product, is significantly improved.
In addition, the spring air in the south is humid, and the thin paper packaging printing factory is easy to absorb moisture and form a ruffle, which causes paper wrinkles to occur during printing. When the crepe paper can't solve the problem, the paper can be transported several times in the printing machine under the pressure condition, so that the paper wrinkles can be solved, and the peers may wish to try.
How to solve the problem of paper product packaging and printing
For the paper product packaging and printing factory, under the premise of ensuring the quality of the printed products, it is undoubtedly a good way to improve the profit by printing the qualified packaging box with the poor quality facial paper. However, paper with poor paper quality generally has the phenomenon of powder falling, napping, and foaming. In response to this situation, combined with work experience, introduce several treatment methods.