Patent ID: 7413632

Claim:
A method for calendering a fibrous web in a calender which includes at least a first roll stack having three or five rolls, forming two or four pairs of rolls wherein the rolls of said roll pairs are movable with respect to each other in a direction defined by the first roll stack so as to form an open or closed nip, and a second roll stack having at least five rolls forming at least four roll pairs wherein the rolls of said roll pairs are movable with respect to each other in a direction defined by the second roll stack so as to form an open or closed nip, the method comprising the steps of: passing a fibrous web between each pair of rolls in the first stack and each pair of rolls in the second stack to form a threaded path; moving at least one pair of rolls from said first stack or said second stack to form at least one nip therebetween; producing a first grade of paper of selected PPS and selected Hunter Gloss % by calendering the web in the calender along the threaded path, followed by producing a second grade of paper of second selected PPS and second selected Hunter Gloss % along the threaded path by increasing or decreasing the number of nips formed by the calender.