| 摘要 |
The invention relates to a calender (1) for smoothing a paper web (2), in particular made of paper capable of gravure printing, comprising at least one roller stack, each roller stack comprising an upper and a lower end roller (4.1, 4.2) and intermediate rollers (5.1, 5.2, 5.3, 5.4), wherein one of the two end rollers (4.1) bounds a first working gap (3) of the roller stack depending on the guiding of the paper web (2), and the rollers (4.1, 4.2, 5.1, 5.2, 5.3, 5.4) are hard rollers (4.1, 5.2, 5.4) and soft rollers (5.1, 5.3, 4.2) in order to form loadable working gaps in the form of soft nips, wherein the end roller (4.1) bounding the first working gap (3) is a hard, heatable roller, the diameter of which is greater than the diameter of a hard, heatable intermediate roller (5.2, 5.4) and the outer wall (9) of which forms one of two contact surfaces (9, 10) of a web treatment gap (8) arranged upstream of the first working gap (3), and the other contact surface is formed by a belt (14) circulating on guide rollers (11, 12, 13).
|
