Patent ID: 6780287
Filing Date: 2004-08-24
Classification: D21F,D21G,Y10S,Y10T

Abstract:
In combination with a calendering apparatus for paper manufacture in which a pressurizing part is composed of a pressing means and a heated calender roller, an endless calendering belt arranged to pass through said pressurizing part, said endless calendering belt being composed of a base portion and resin, the resin having a main central portion, and right and left portions located along right and left sides of the main central portion, said central portion and said right and left portions all being composed of high molecular weight elastic materials, said right and left portions being composed of a high molecular weight elastic material more resistant than the elastic material of the main central portion to the formation of cracks and wear as a result of exposure to heat, and said main central portion being composed of a high molecular weight elastic material more resistant than the material of said right and left portions to wear resulting from repeated compression in the pressing part of a calendering apparatus.