The smoothness of Tipping Tpaper Silver Foil affects the quality of the print

The smoothness of Tipping Tpaper Silver Foil affects the quality of the print

Tipping Tpaper Silver Foil is used as an indication of paper roughness and is also an indicator to evaluate the surface roughness characteristics of paper and board. Smoothness refers to the degree of uneven microscopic geometry on the surface of the paper.

It is usually expressed as the time required for a certain volume of air at a certain vacuum to pass the gap between the surface of the paper sample and the smooth glass surface at a certain pressure, in s. The coarser the surface of the paper, the less resistance the air through, the shorter the time required; On the other hand, the surface of the paper is smooth, the resistance of the air through the large, the required time is long.

In order to ensure the quality of printed matter, paper should have a certain smoothness, because it determines the closeness of the paper and printing plate contact, thereby affecting the transfer performance of ink. The coarser the paper, the greater the amount of ink needed to meet the printing requirements, and the amount of ink needed to reduce the smoothness of the paper. In addition, the increase in the amount of ink on rough paper will also lead to the printing process dot expansion aggravation.

Ink transfer to the surface of the paper first need leveling, and then drying. On the premise of the same ink and printing conditions, the higher the smoothness of the paper, the better the ink leveling, the better the gloss of the ink layer.

To sum up, before the printing work, the smoothness of the printing paper should be tested first, so that the quality of the printed matter can be controlled and guaranteed.