2021-10-23
A: After calendering, the paper fiber is no longer loosely arranged, but has a certain degree of tightness, but the surface smoothness still can not meet the requirements of high-grade fine printing.
The surface uniformity of uncoated paper is poor. After printing, the ink color is uneven, and the glossiness is low. It can not restore the fine dot, resulting in layer loss, and the uniformity of the field part of the image will be reduced, which will affect the printing reproduction effect.
Therefore, the fine printing paper must be coated to further improve the surface performance of the paper.
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