FSC®-certified Lightweight Coated Cover
Tools

Moisture Conditioning of Paper

Paper is moisture conditioned so that it will stay flat and not develop wavy or tight edges before or during printing. Wavy-edged paper can be temporarily corrected by storage in "hot room" temperatures (100º to 110ºF) for several hours before printing, or by placing strip heaters or infra-red lamps along the sides of the feeder pile near the top to warm and shrink the edges.

HOURS REQUIRED FOR TEMPERATURE CONDITIONING OF PAPER

Cubic Volume of Paper
on Skid, in Carton
or in Roll
Difference in Temperature of paper and
Temperature of the pressroom in which it is opened
  10º 15º 20º 25º 30º 40º 50º 60º
6 ft3 (1.83 m3) 5 9 12 15 18 25 35 54
12 ft3 (3.66 m3) 8 14 18 22 27 38 51 78
24 ft3 (7.32 m3) 11 16 23 28 35 48 67 100
48 ft3 (14.64 m3) 14 19 26 32 38 54 75 109
96 ft3 (29.28 m3) 15 20 27 34 41 57 79 115

The ideal print room conditions are between 45% and 55% R.H. at 72°F.