Patent ID: 6158333
Filing Date: 2000-12-12
Classification: D21G

Abstract:
A method of calendering a fibrous web between a counter element and a tubular flexible jacket having a predetermined length, said method comprising the steps of:advancing a fibrous web having a predetermined width between the counter element and the tubular jacket;heating the counter element to a temperature greater than the temperature of the fibrous web to apply heat to the fibrous web;moving the counter element and a load element positioned on an inside of the tubular jacket towards each other to thereby calender the web under heat and pressure between the jacket and the counter element, the load element having a length less than the width of the fibrous web thereby defining a pair of edge strips at opposed edges of the fibrous web that are not calendered by the load element;deflecting the tubular jacket with the load element, the load element also having a length less than the tubular jacket to define tapered sections of the jacket at opposite end portions thereof; andcovering at least a portion of the tapered sections with the edge strips of the fibrous web to thereby prevent excessive heat from being transferred from the counter element to the tubular flexible jacket.