What causes sheets to curl?
Moisture gain or loss causes material to curl. A humid environment can cause an ‘up-curl’; lower humidity can cause a ‘down-curl’ on the material. The potential for curling is higher for material which is not clay coated on the back side. For best performance, allow the metalized paper to adjust to the press room’s temperature conditions for 24 hours before printing. A temperature range of 65° to 76° Fahrenheit and a 40 to 60 % relative humidity condition are recommended for the press room while running, finishing and storing this paper. For sheets shipped in cartons, lay paper flat and secure with bands to prevent curling.
