EP0945546A3 - Calender, particularly for treating a paper web - Google Patents

Calender, particularly for treating a paper web Download PDF

Info

Publication number
EP0945546A3
EP0945546A3 EP99105649A EP99105649A EP0945546A3 EP 0945546 A3 EP0945546 A3 EP 0945546A3 EP 99105649 A EP99105649 A EP 99105649A EP 99105649 A EP99105649 A EP 99105649A EP 0945546 A3 EP0945546 A3 EP 0945546A3
Authority
EP
European Patent Office
Prior art keywords
forming
roller
nip
plastic
calender
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
EP99105649A
Other languages
German (de)
French (fr)
Other versions
EP0945546B1 (en
EP0945546A2 (en
Inventor
Hans-Rolf Dipl.-Ing. Conrad
Lothar Dr.-Ing. Zimmermann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Voith Patent GmbH
Original Assignee
Voith Sulzer Papiertechnik Patent GmbH
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
Application filed by Voith Sulzer Papiertechnik Patent GmbH filed Critical Voith Sulzer Papiertechnik Patent GmbH
Publication of EP0945546A2 publication Critical patent/EP0945546A2/en
Publication of EP0945546A3 publication Critical patent/EP0945546A3/en
Application granted granted Critical
Publication of EP0945546B1 publication Critical patent/EP0945546B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G1/00—Calenders; Smoothing apparatus

Abstract

At least one roller (6-9) forming the double soft nip pair (19-21) is heated. Preferred features: At least one of the two nips has a heated roller. Surfaces (22) forming the nip are smooth, with a mean roughness (Ra), of up to 0.5 mu m under operational conditions. Rollers comprise a hard core (11) and resilient surface layer (10) having a predetermined, high thermal conductivity. This layer is very thin, being less than 4 mm, and especially 0.02-2 mm thick. It is a plastic, applied as a coating. One roller (7) forming the double nip has an overcoat (13) of metal, ceramic or plastic on the surface layer. All central rollers have a resilient surface and are of the same construction.
EP99105649A 1998-03-27 1999-03-19 Calender for treating a paper web Expired - Lifetime EP0945546B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19813640A DE19813640A1 (en) 1998-03-27 1998-03-27 Calender, especially for the treatment of a paper web
DE19813640 1998-03-27

Publications (3)

Publication Number Publication Date
EP0945546A2 EP0945546A2 (en) 1999-09-29
EP0945546A3 true EP0945546A3 (en) 2000-02-23
EP0945546B1 EP0945546B1 (en) 2002-11-06

Family

ID=7862609

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99105649A Expired - Lifetime EP0945546B1 (en) 1998-03-27 1999-03-19 Calender for treating a paper web

Country Status (5)

Country Link
US (1) US6230615B1 (en)
EP (1) EP0945546B1 (en)
AT (1) ATE227374T1 (en)
CA (1) CA2267030C (en)
DE (2) DE19813640A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6786144B2 (en) * 2001-05-30 2004-09-07 New Gencoat, Inc. Wringer roller system
DE10221172A1 (en) * 2002-05-13 2003-12-04 Voith Paper Patent Gmbh Elastic smoothing roller and method for producing such
FI121275B (en) * 2007-04-12 2010-09-15 Metso Paper Inc Method of calendering a fiber web
DE102008044369A1 (en) 2008-12-05 2010-06-10 Voith Patent Gmbh calender
DE102009045824A1 (en) * 2009-10-20 2011-04-21 Voith Patent Gmbh calender
DE102009046918A1 (en) * 2009-11-20 2011-05-26 Voith Patent Gmbh Multi-roll calender and conversion process of a multi-roll calender

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4026774A1 (en) * 1990-08-24 1992-03-05 Voith Gmbh J M Paper polishing roller assembly giving high speed working - has hard top and bottom rollers with a soft cladding at the centre rollers for high-speed working
EP0728867A2 (en) * 1995-02-23 1996-08-28 Voith Sulzer Finishing GmbH Calender for paper webs
WO1997041298A1 (en) * 1996-04-29 1997-11-06 Valmet Corporation Method in the calendering of a paper web and a calender that makes use of the method

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3401439A (en) * 1965-05-19 1968-09-17 Gen Binding Corp Laminating apparatus
DE3937246C2 (en) 1988-11-11 2002-06-27 Metso Paper Inc calendering
DE19521402C2 (en) 1995-06-13 2002-02-07 Voith Paper Gmbh Calender for the treatment of a paper web
DE29518424U1 (en) * 1995-11-21 1996-03-14 Voith Sulzer Finishing Gmbh Calender in a paper or coating machine
DE19547164C1 (en) * 1995-12-16 1997-02-06 Voith Sulzer Finishing Gmbh Calender for the treatment of a paper web and application of this calender
DE19710573C2 (en) 1997-03-14 1999-01-21 Voith Sulzer Finishing Gmbh Calenders, especially for paper webs

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4026774A1 (en) * 1990-08-24 1992-03-05 Voith Gmbh J M Paper polishing roller assembly giving high speed working - has hard top and bottom rollers with a soft cladding at the centre rollers for high-speed working
EP0728867A2 (en) * 1995-02-23 1996-08-28 Voith Sulzer Finishing GmbH Calender for paper webs
WO1997041298A1 (en) * 1996-04-29 1997-11-06 Valmet Corporation Method in the calendering of a paper web and a calender that makes use of the method

Also Published As

Publication number Publication date
EP0945546B1 (en) 2002-11-06
CA2267030C (en) 2004-01-27
ATE227374T1 (en) 2002-11-15
CA2267030A1 (en) 1999-09-27
US6230615B1 (en) 2001-05-15
EP0945546A2 (en) 1999-09-29
DE19813640A1 (en) 1999-09-30
DE59903283D1 (en) 2002-12-12

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