METHOD AND APPARATUS FOR CONTROLLING PAPER PROPERTIES IN A CALENDAR

摘要

The invention relates to a method and an apparatus for the calendering of paper by an arrangement where the paper is passed via one or more nips (2) in a calender and the nip load, calendering temperature and/or moistening are adjusted by means of a regulator (5) provided in conjunction with the nip. According to the invention, the properties of the calendered paper are measured after a desired calender nip (2) and the nip load, calendering temperature and/or moistening in at least one, desired calender nip are adjusted on the basis of the measurement results so that a desired combination of paper properties is achieved in the final product.