METHOD AND APPARATUS FOR MANUFACTURING CALENDERED PAPER

摘要

In the method for manufacturing calendered paper, paper is calendered after drying. The paper is dried (D) down to a moisture lower than the target moisture of calendering. The paper is run via wetting (1) to calendering, wherein at least one of the surface layers of the paper is wetted in the wetting in such a way that the moistening water is absorbed in the surface layer of the paper while at least the central part remains substantially dry . From the paper wetted at least on one of its sides, gradient paper is manufactured by means of gradient calendering by restricting the paper- moulding effect of the calender to the wetted surface layer in such a way th at at least the central part of the paper is elastically restored substantially in its original state, whereafter the obtained gradient paper is reeled.