calendering, process of smoothing and compressing a material (notably paper) during production by passing a single continuous sheet through a number of pairs of heated rolls. The rolls in combination are called calenders.

Is calendering a forming process?

Included are calendering, thermoforming (or sheet forming), and casting. The first of these, calendering, is a continuous process that uses rolls to form a polymer mass into a sheet of uniform thickness (see Fig. 10-1).

What are the types of calendering process?

Variations. Several different finishes can be achieved through the calendering process by varying different parts. The main different types of finishes are beetling, watered, embossing, and Schreiner.