Metso Paper Inc.

Valmet Corporation

Hannu Pullinen

Kari Holopainen

Markku Kyytsönen

Harri Kuosa

Aaron Mannio

Jorma Haag

Markku Kirvesmäki

Rauno Rantanen

A multiple-nip calender has a set of rolls () with roll nips (N) between the rolls. A moistening arrangement has a roll means () for moistening the fibre web comprising a damping unit () and rolls () guiding the fibre web (W). The roll means is located in a pocket () adjacent to the line (L) of the aligned set of rolls, the pocket being formed by a space defined by the fibre web (W), one idle roll () in the set of rolls and said roll means (), the fibre web contacting said roll at two locations, in roll nips located on opposite sides of the roll mantle when viewed from the longitudinal axis of the roll, and circulating around the roll means (). The fibre web (W) contacts said roll in the set of rolls preferably in the roll nip immediately preceding a reversing nip (N;N).

Moistening arrangement of multiple-nip calender

A multi-roll calender, supercalender, soft calender or equivalent has at least one nip (YN, PN, KN, PN, AN) profiling a fibrous web (W) which is being calendered. A shoe roll () constitutes at least one of the calender rolls which define the nip. A shell () of the shoe roll is of a composite material, and the shoe roll is provided with internal shell-loading shoes () for profiling the shell, the nip and/or the fibrous web.

Shoe roll

In the method for paper web transfer in a paper machine or finishing apparatus for paper, a paper web (W) is transferred in a first machine portion (A) at a first travelling speed. In a second machine portion (B) following the first one in the travel direction of the web, the tail is transferred at a travelling speed lower than the first travelling speed. In the second machine portion (B) the tail (TB) is transferred independently without a draw connection to the web (W, TA) transferred in the first machine portion (A), the travelling speed of the tail (TA) transferred in the second machine portion (B) is increased, and a draw connection is established between the tail and the web (W, TA) transferred in the first machine portion.

Method for paper web transfer and transfer apparatus for paper web

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Riihimäki, Finland

Hannu Pullinen