Pre-coated paper means that when the paper is produced, a special coating is applied to its surface to give the paper a certain performance or appearance. The water absorption performance of precoated paper has the following effects on the performance of coated paper:
Coated paper needs to apply a certain pressure when coating, so that the coating can be evenly attached to the surface of the paper. If the water absorption of the pre-coated paper is too low, the adhesion between the coating and the paper surface will be insufficient, causing the coating to fall off easily and reducing the quality of the coated paper.
The water absorption performance of precoated paper also has an impact on the dispersion and distribution uniformity of the coating. If the water absorption of the precoated paper is too high, the coating will be dispersed unevenly, causing spots or wrinkles on the surface of the paper.
The water absorption performance of precoated paper also affects the gloss and smoothness of the paper surface. If the water absorption of the pre-coated paper is too low, there will be problems such as wrinkling and roughness on the surface of the paper, which will affect the gloss and smoothness of the paper.
Therefore, in the production of coated paper, it is necessary to select the appropriate pre-coated paper according to different coatings and paper characteristics, and ensure that its water absorption performance meets the requirements of coated paper.
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