ATE386839T1 - WIDE NIP CALENDAR AND METHOD FOR SATIN FINISHING A MATERIAL WEB - Google Patents

WIDE NIP CALENDAR AND METHOD FOR SATIN FINISHING A MATERIAL WEB

Info

Publication number
ATE386839T1
ATE386839T1 AT05104597T AT05104597T ATE386839T1 AT E386839 T1 ATE386839 T1 AT E386839T1 AT 05104597 T AT05104597 T AT 05104597T AT 05104597 T AT05104597 T AT 05104597T AT E386839 T1 ATE386839 T1 AT E386839T1
Authority
AT
Austria
Prior art keywords
compensation
casing
roller
edges
counter roller
Prior art date
Application number
AT05104597T
Other languages
German (de)
Inventor
Joerg Rheims
Original Assignee
Voith 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 Patent Gmbh filed Critical Voith Patent Gmbh
Application granted granted Critical
Publication of ATE386839T1 publication Critical patent/ATE386839T1/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

Abstract

Compensation is provided for thinning of the pressure shoe (9) roller (2) casing (5), which operates against a counter-roller (3), forming a wide nip (4). Compensation includes a casing (5) which is thicker near its edges than in the middle. One of the surfaces bordering the wide nip deforms in a direction in which central area pressing becomes more uniform. Compensation reduces towards the axial center of the working region. Further compensation variants are cited. The casing includes a reinforcing inlay, e.g. a fabric. The compensation is located in the half of the casing thickness, which is remote from the counter roller. It acts inside the casing and/or on the pressure shoe, which it heats. In the central region it exerts reduced pressure towards the counter roller. It produces greater pressure at the edges of the working region. The compensation produces a locally-enlarged oil cushion between the shoe and the casing. The pressure shoe projects further towards the counter roller at the edges, where it is thicker than in the center. The compensation acts on the counter roller, heating it more at the ends than in the central region. The compensation provides an expansion zone for the casing, outside the working region. Compensation is controlled as a function of measured product thicknesses. An independent claim is included for the corresponding method of glazing (or satinizing).
AT05104597T 2004-06-22 2005-05-30 WIDE NIP CALENDAR AND METHOD FOR SATIN FINISHING A MATERIAL WEB ATE386839T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102004030008A DE102004030008A1 (en) 2004-06-22 2004-06-22 Wide nip calender and method of calendering a web

Publications (1)

Publication Number Publication Date
ATE386839T1 true ATE386839T1 (en) 2008-03-15

Family

ID=35056921

Family Applications (1)

Application Number Title Priority Date Filing Date
AT05104597T ATE386839T1 (en) 2004-06-22 2005-05-30 WIDE NIP CALENDAR AND METHOD FOR SATIN FINISHING A MATERIAL WEB

Country Status (3)

Country Link
EP (1) EP1609907B1 (en)
AT (1) ATE386839T1 (en)
DE (2) DE102004030008A1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE364750T1 (en) * 2001-04-18 2007-07-15 Stowe Woodward Ag SHOE PRESS BELT
DE10204286B4 (en) * 2002-02-02 2006-02-02 Voith Paper Patent Gmbh Calender and method of operating a calender
DE10255715B4 (en) * 2002-11-29 2006-08-31 Voith Paper Patent Gmbh Wide-nip calender and coat for a wide-nip calender
DE10259442C5 (en) * 2002-12-19 2008-01-03 Voith Patent Gmbh Extended nip calender

Also Published As

Publication number Publication date
DE502005002876D1 (en) 2008-04-03
EP1609907B1 (en) 2008-02-20
EP1609907A1 (en) 2005-12-28
DE102004030008A1 (en) 2006-01-12

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