Method of pressing a paper web of tropical hardwood fibers

Details Method of pressing a paper web of tropical hardwood fibers Method of pressing a paper web of tropical hardwood fibers

1996-02-02

1999-04-06

Hastings, Karen M.

Paper making and fiber liberation

Processes and products

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

1623583, 1623603, D21F 304

Patent

active

058913084

ABSTRACT:
A press section is provided for a papermaking machine having an Extended Nip press before a conventional press section such as a Beloit Corporation Tri-Nip or Twinver press. A Beloit Corporation Extended Nip.RTM. press or similar type press, preferably of the closed blanket type, is installed before a conventional two or three nip press and thus reduces the problem of the web sticking to the center roll in the conventional press. The use of an Extended Nip press in front of a conventional pressing section can also increase the bulk of the web being formed. The pressing section of this invention is particularly useful for pressing webs formed of 100 percent tropical hardwood fibers which contain resinous particles which can cause problems in sticking to the center roll.

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"Beloit Tri-Nip.TM. Press", brochure, Beloit Corporation, Beloit, Wisconsin undated.
"Beloit Twinver Press", flyer, Beloit Corporation, Beloit, Wisconsin undated.

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