Global Patent Index - EP 0944761 B1

EP 0944761 B1 20041229 - CALENDER PROVIDED WITH AN EXTENDED NIP

Title (en)

CALENDER PROVIDED WITH AN EXTENDED NIP

Title (de)

KALENDER MIT VERLÄNGERTER PRESSZONE

Title (fr)

CALANDRE MUNIE D'UNE PINCE ALLONGEE

Publication

EP 0944761 B1 20041229 (EN)

Application

EP 98947590 A 19981014

Priority

  • FI 9800801 W 19981014
  • FI 973954 A 19971014

Abstract (en)

[origin: WO9928551A1] 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).

IPC 1-7

D21G 1/00; D21G 1/02

IPC 8 full level

D21G 1/00 (2006.01); D21G 1/02 (2006.01)

CPC (source: EP)

D21G 1/006 (2013.01); D21G 1/0066 (2013.01); D21G 1/0233 (2013.01)

Designated contracting state (EPC)

AT DE FI FR GB IT SE

DOCDB simple family (publication)

WO 9928551 A1 19990610; AT E286171 T1 20050115; AU 9445098 A 19990616; CA 2274820 A1 19990610; CA 2274820 C 20070410; DE 69828376 D1 20050203; DE 69828376 T2 20051208; EP 0944761 A1 19990929; EP 0944761 B1 20041229; FI 115985 B 20050831; FI 973954 A0 19971014; FI 973954 A 19990415; JP 2001512539 A 20010821

DOCDB simple family (application)

FI 9800801 W 19981014; AT 98947590 T 19981014; AU 9445098 A 19981014; CA 2274820 A 19981014; DE 69828376 T 19981014; EP 98947590 A 19981014; FI 973954 A 19971014; JP 52769199 A 19981014