In a supercalender consisting of a metal roll and an elastic roll and smoothing a web by nipping the web between the metal roll and the elastic roll, the elastic roll satisfies the condition of:Hs(D).gtoreq.-0.1T+85under the condition of 50 to 500 kg/cm of the linear pressure between the metal roll and the elastic roll, where Hs(D) is Shore hardness D-scale of the elastic roll and T is the working temperature (.degree.C.) of the elastic roller that satisfies the condition of 60.gtoreq.T.gtoreq.120.