Paper calendering, do you know a few of these 6 basic principles-Jinling Machinery

　　The paper calendering process can produce a smooth and compact paper surface to adapt to printing and writing and obtain aesthetic feeling. Calendering is defined as the pressure and friction experienced when a plastic web travels between two or more adjacent nip zones. Its effect on the paper web is to change the surface properties and gloss.

　　1. Paper calendering is a mechanical process, which compresses the paper web and improves surface properties, so calendering reflects the quality standards of papermaking and coating processes

　　2. Calendering includes three elements: pressure, relative deformation and temperature of paper and pulp rolls

　　3. The efficiency of calendering is the approximate balance between the responsiveness of coated paper and the total amount of calendering provided. The responsiveness of coated paper is predetermined by the characteristics of the paper and its coating

　　4. The total amount of paper and/or coating performance that can withstand calendering is limited. If the limit is exceeded, the calendering effect usually reduces the quality and correspondingly loses the printability

　　5. Coating performance is the sum of the internal performance of the paper itself plus the external performance of the coating