The latter finish consists of slightly stiffening and calendering the cloth.
Before the final rolling in the calendering machine the fabric is lightly smoothed by passing over warm cylinders.
In other words, the density of any given piece of paper is proportionate to the amount of calendering it receives.
Cal′endering; Cal′endrer, one whose business it is to calender cloth; Cal′endry, a place where calendering is done.
calendering and beetling make the material smooth and lustrous and reduce the thickness.
Such damp spots in the paper crush in the calendering and make blackened areas in the paper.
Therefore the finishing process includes brushing, very light starching or sizing, then calendering or pressing.
"to pass through a calender," a machine which smooths and presses paper, cloth, etc., 1510s, from Middle French calandre, the machine name, from Medieval Latin calendra (see calender (n.)).
"machine which smooths and presses paper, cloth, etc.," 1510s (late 13c. in surnames of persons who use such a machine), 1510s, from Old French calandreur, from Medieval Latin calendra "cloth-pressing machine," so called from the shape of the machine used, from Latin cylindrus, from Greek kylindros "roll, cylinder" (see cylinder).