Question

The moisture content of the paper sheet after passing through the rotary presses is _______

(a) 80%–90%

(b) 60%–70%

(c) 40%–50%

(d) 10%–20%

I have been asked this question by my school teacher while I was bunking the class.

I'm obligated to ask this question of Paper Making topic in chapter Paper and Paper Based Packaging Materials of Food Packaging Technology

Answer 1

Correct choice is (b) 60%–70%

The best explanation: Rotary presses (which may have solid or perforated rollers, often with internal suction) receive the sheets on continuous felts, which act as conveyers and porous receptors of water. On leaving the press, the moisture content is typically 60%–70%, again depending on type.