ATE286171T1 - CALENDAR WITH EXTENDED PRESS ZONE - Google Patents

CALENDAR WITH EXTENDED PRESS ZONE

Info

Publication number
ATE286171T1
ATE286171T1 AT98947590T AT98947590T ATE286171T1 AT E286171 T1 ATE286171 T1 AT E286171T1 AT 98947590 T AT98947590 T AT 98947590T AT 98947590 T AT98947590 T AT 98947590T AT E286171 T1 ATE286171 T1 AT E286171T1
Authority
AT
Austria
Prior art keywords
calendering
nip
belt
calendar
paper
Prior art date
Application number
AT98947590T
Other languages
German (de)
Inventor
Pekka Koivukunnas
Mikko Tani
Kari Hasanen
Original Assignee
Metso Paper Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8549725&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ATE286171(T1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Metso Paper Inc filed Critical Metso Paper Inc
Application granted granted Critical
Publication of ATE286171T1 publication Critical patent/ATE286171T1/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G1/00—Calenders; Smoothing apparatus
    • D21G1/006—Calenders; Smoothing apparatus with extended nips
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G1/00—Calenders; Smoothing apparatus
    • D21G1/0066—Calenders; Smoothing apparatus using a special calendering belt
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G1/00—Calenders; Smoothing apparatus
    • D21G1/02—Rolls; Their bearings
    • D21G1/0233—Soft rolls

Abstract

The invention concerns a calender provided with an extended nip for calendering of a paper or board web. The calender comprises at least one calendering nip (N), which is formed between a heatable hard roll (1) and a calendering belt (10) which has been formed as an endless loop and which is loaded against the heatable hard roll (1) by means of a backup roll (3) or a press shoe (24). The paper or board web (W) to be calendered is arranged to run through said calendering nip (N). According to the invention, in respect of at least a part of its thickness, the calendering belt (10) is made of a material of compressible volume. According to a second embodiment of the invention, the necessary resilience in the nip (N) is provided by means of a separate support belt, which runs underneath the calendering belt in relation to the web (W).
AT98947590T 1997-10-14 1998-10-14 CALENDAR WITH EXTENDED PRESS ZONE ATE286171T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI973954A FI115985B (en) 1997-10-14 1997-10-14 Calender with an extended nip
PCT/FI1998/000801 WO1999028551A1 (en) 1997-10-14 1998-10-14 Calender provided with an extended nip

Publications (1)

Publication Number Publication Date
ATE286171T1 true ATE286171T1 (en) 2005-01-15

Family

ID=8549725

Family Applications (1)

Application Number Title Priority Date Filing Date
AT98947590T ATE286171T1 (en) 1997-10-14 1998-10-14 CALENDAR WITH EXTENDED PRESS ZONE

Country Status (8)

Country Link
EP (1) EP0944761B1 (en)
JP (1) JP2001512539A (en)
AT (1) ATE286171T1 (en)
AU (1) AU9445098A (en)
CA (1) CA2274820C (en)
DE (1) DE69828376T2 (en)
FI (1) FI115985B (en)
WO (1) WO1999028551A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE516821C2 (en) * 1999-10-19 2002-03-05 Korsnaes Ab Uncoated paper or board product and process for making it
US6598521B2 (en) * 2000-05-11 2003-07-29 Metso Paper, Inc. Soft nip calender employing a continuous elastic belt
FI116734B (en) * 2001-10-25 2006-02-15 Metso Paper Inc A method for treating a paper or board web and a paper or board web handling device
FI114031B (en) * 2003-03-04 2004-07-30 Metso Paper Inc Method of pressing paper web and paper web press device
US20080230001A1 (en) 2006-02-23 2008-09-25 Meadwestvaco Corporation Method for treating a substrate
DE102007060400B3 (en) * 2007-12-14 2009-05-28 Andritz Küsters Gmbh Apparatus for forming an extended nip

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3447600A (en) * 1966-09-23 1969-06-03 Sw Ind Inc Construction of roll for machinery and the manufacture thereof
US4552620A (en) * 1983-09-19 1985-11-12 Beloit Corporation Paper machine belt
JPS61252389A (en) * 1985-04-25 1986-11-10 市川毛織株式会社 Papermaking press belt
CA2068629C (en) * 1991-05-14 1996-05-07 James B. Vrotacoe Gapless tubular printing blanket
SE502960C2 (en) * 1994-06-15 1996-02-26 Nordiskafilt Ab Albany Arrangement for calendaring

Also Published As

Publication number Publication date
FI115985B (en) 2005-08-31
DE69828376D1 (en) 2005-02-03
EP0944761A1 (en) 1999-09-29
JP2001512539A (en) 2001-08-21
AU9445098A (en) 1999-06-16
WO1999028551A1 (en) 1999-06-10
EP0944761B1 (en) 2004-12-29
FI973954A0 (en) 1997-10-14
FI973954A (en) 1999-04-15
CA2274820A1 (en) 1999-06-10
DE69828376T2 (en) 2005-12-08
CA2274820C (en) 2007-04-10

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