1, the influence of paper matrix

The quantity of paper is large and the amount of pickup is relatively large. The larger the tightness, the smaller the amount of glue to pick up. In addition, the capillary structure of the paper and the size of the pores of the fiber affect the pickup of the paper.

Although the compound had effect on finishing paper with rough surface, but the surface roughness is not ideal paper, even if the amount of rubber pickup is also very difficult to achieve the ideal decoration effect. Therefore, the homogeneity of the page is the primary condition for the surface sizing.

2. Influence of the sizing of paper pages

The sizing of the page sizing is an important factor affecting the amount of pickup of the sizing press. No glue paper than the glue paper absorption rubber 100%, at the same time, the paper also absorbed water more, which leads to the decrease of strength, breakage rate increase. Once the sizing degree of the paper is reached to a certain value, the effect of increasing the sizing of the paper on the absorption of the paper is not obvious.

3. The effect of water on paper pages

The size of moisture entering the sizing press not only affects the picking amount of paper to the rubber, but also the uniformity of the longitudinal and transverse moisture directly affects the uniformity of the absorption of the rubber. Therefore, the water of the paper page which is pressed by the sizing is the key parameter that needs to be emphasized in the process of production. In the process of production, the water is normally controlled from 5 to 10%, and the maximum amount of pickup can be obtained.

4, the influence of the speed of the paper machine

For ordinary sizing press, with the increase of the speed of paper machine, it is beneficial to pick up the paper on the rubber. When the paper locomotive speeds from 100m/min to 300m/min, the amount of starch pickup increases quickly. But the amount of starch pickup was not significantly increased after the speed of the car was increased to 650m/min. For metering and sizing, under the condition of unchanged supply of rubber, with the increase of vehicle speed, the time of paper in pressing area is reduced, and the amount of adsorbent on paper is reduced.

5, effect of sizing press

The horizontal sizing press than vertical glue on picking up high. The lower pressure zone pressure is beneficial to the increase of the thickness of the liquid film through the pressure zone. The larger diameter and lower hardness of the rubber roller are beneficial to the absorption time of the paper to the rubber.

6. Influence of sizing agent

In a certain range, improving the solid content of the adhesive can improve the pickup of the paper, and also help to reduce the post drying load. But increasing the solid content will reduce the rheological properties of the rubber. The size effect of the viscosity and rheological performance of rubber membrane transfer amount, low viscosity increase in quantity, high viscosity increase through the pressure area of the film thickness.

Cationic starch glue and oxidized starch anionic or nonionic modified starch adhesive is different, because of the increase of paper fiber chemical affinity, makes use of starch glue penetration rate slowed down, more in starch sheet surface.