What Is Calendering Process?
The word “calender” itself is a derivation of the word κύλινδρος kylindros, the Greek word that is also the source of the word “cylinder”. The calender is consist of series of hard pressure rollers used to form or smooth a sheet of material. During the calendering process, the melted raw material exposed to pressure and velocity difference that present between cylinders, while passing through rollers. So, the material is formed as film layer.