EP 0944761 A1 19990929 - 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
Application
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
IPC 8 full level
CPC (source: EP)
D21G 1/006 (2013.01); D21G 1/0066 (2013.01); D21G 1/0233 (2013.01)
Citation (search report)
See references of WO 9928551A1
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