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
|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.