Calendering

Calendering is a speciality process for high-volume, high quality plastic film and sheet, mainly used for PVC as well as for certain other modified thermoplastics.

The melted polymer is subject to heat and pressure in an extruder and formed into sheet or film by calendering rolls. The temperature and speed of the rolls influences the properties of the film.

Calendering allows speciality surface treatments of the film or sheet such as embossing or enhancing the physical properties or in-line lamination