calender n : a machine that smoothes or glazes paper or cloth by pressing it between plates or passing it through rollers v : press between rollers or plates so as to smooth, glaze, or thin into sheets; "calender paper"

English

Pronunciation

• (RP): /ˈkæləndə/, /"k

This article is about a device for smoothing paper. For the method of timekeeping, see calendar. A calender (or kalandar) is also an order of dervishes in Turkey and Persia.

The calender is a series of hard pressure rollers, at the end of a papermaking process (on-line) or separate from it (off-line), which is also called supercalender. The purpose of a calender is to smooth out the paper for enabling printing and writing on it, and to increase the gloss on the paper surface. It is understood to be a process of using pressure for embossing a smooth surface on the still rough paper surface.

Other materials

Calenders can also be applied to materials other than paper in which a smooth, flat surface is desirable, such as cotton, many linens and silks, and various man-made fabrics and polymers - mostly for vinyl and ABS polymer sheets but also, to a lesser extent, to HDPE, Polypropylene , and Polystyrene.