Dehydration Methods For Toilet Paper

Dehydration Methods For Toilet Paper

       Natural dehydration and vacuum dehydration: In terms of mesh dehydration, the dehydration from the slurry box to the vacuum box is natural dehydration, while the dehydration from the vacuum box to the vacuum roller is vacuum dehydration. In general, during the natural dehydration process, fibers in the slurry suspension collide and interweave with each other on the web, gradually forming wet paper sheets. After the paper is formed, the pores of the paper become smaller and the dehydration resistance gradually increases. For example, the pulp of news paper with a beating degree of 65oSR can reach a copying speed of 100m/min during papermaking, while the pulp of double adhesive paper with a beating degree of 25-35oSR can only reach a copying speed of 400m/min. This indicates that the content of fine fibers in pulp suspension is not the determining factor for the quality of pulp filtration, but rather the characteristics of fiber raw materials determine the filtration performance of pulp. In addition, the thicker the paper, the poorer the water filtration performance.

      In order to increase the natural dehydration of straw pulp fibers, it is necessary to increase the porosity of the paper in the mesh to reduce the dehydration resistance. The method is to fix small fibers on the surface of long fibers, causing them to aggregate with each other, thereby reducing the overall specific surface area of pulp fibers, which is very important. The function of the filter aid (MP101) lies in this. During the vacuum dehydration process, the paper is compressed by vertical suction, which creates a pressure difference through vacuum and removes the moisture from the paper.