METHOD FOR A MULTI-ROLL CALENDER AS WELL AS A MULTI-ROLL CALENDER

摘要

The present invention relates to a method for a multi-roll calender and to a multi-roll calender for controlling the moisture gradient of a fibrous web and for enabling the manufacture of high quality paper grades, such as WFC, LWC-roto and SC-A, by means of on- or off-line calendering. According to the invention, an on- or off-line multi-roll calender formed of separate sets of rolls (A, B) is used for calendering, and the fibrous web (W) is subjected to intermediate moistening between the sets of rolls (A, B).