Paper decurler for uneven curl profile

摘要

A method and apparatus are disclosed for reducing or eliminating the precurl in a web of paper (40). The apparatus includes a decurler (42) which may operate in conjunction with a lead in roll (60) and a bowed roll (62). Motions are provided to the lead in roll (60) and decurler (42) so that the wrap of the web (40) on the bowed roll (62) remains essentially unaffected by the movement of the decurler (42) into and out of the web. One of the above apparatus or a lead out roll (60) may be skewed to address uneven cross machine curl profile, while the bowed roll (62) addresses baggyness and the decurler (42), of course curl.