| 摘要 |
The invention concerns a calendering method, in which the material web (W) to be calendered, in particular a paper or board web, is passed through the calender, in which at least one calendering nip (N) is formed by means of two rolls (12A, 12B) provided with resilient roll coatings (13A, 13B). The rolls (12A, 12B) are loaded towards each other so that, owing to the resilient nature of the roll coatings (13A, 13B), the nip (N) between the rolls (12A, 12B) becomes an extended nip. A flexible calendering belt (15A, 15B), which is non-compressible in comparison with the roll coatings (13A, 13B), which has been formed into an endless loop by means of alignment or reversing rolls (14A, 14B) or of equivalent rolls, and which runs through the nip, is passed over the calendering rolls (12A, 12B) provided with resilient roll coatings (13A, 13B) at each side of the nip (N). The invention also concerns a calender that makes use of the method. |
