Compact press section in a paper machine

Details Compact press section in a paper machine Compact press section in a paper machine

1994-10-06

1997-03-18

Hastings, Karen M.

Paper making and fiber liberation

Processes and products

Running or indefinite length work forming and/or treating...

162193, 1623591, 1623603, 162275, D21F 304

Patent

active

056118929

ABSTRACT:
A closed press section in a paper machine including a compact combination of press rolls, some of which define press nips with each other between which the web has a closed draw supported by the face of a fabric. The press section has a center roll in connection with which at least one press nip is formed. A closed loop of a transfer band is passed around the center roll. The web is transferred on an outer face of the transfer band after the last press nip in the compact combination of rolls as a closed and constantly supported draw onto a drying wire in a drying section following after the press section. The transfer band loop is preferably made of a fabric that substantially does not receive water and does not rewet the web. The web-adhesion properties of the outer face of the transfer band are chosen so that, after the last nip, the web follows the transfer band, and so that the web can be transferred as a fully closed draw onto the drying wire. In connection with the loop of the transfer band, means for conditioning/cleaning the band and/or safety devices are provided, by whose means an adequate operation of the transfer band is maintained.

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