EP 2275601 B1 20120104 - Calendar for smoothing sheets of paper or cardboard
Title (en)
Calendar for smoothing sheets of paper or cardboard
Title (de)
Kalander zum Glätten einer Papier oder Kartonbahn
Title (fr)
Calandre pour lisser un papier ou une bande de carton
Publication
Application
Priority
EP 09008728 A 20090703
Abstract (en)
[origin: EP2275601A1] The calender (1) has a pressure producing unit (6) for producing a preset pressure in a nip (3). A web treatment unit (7) includes two contact surfaces (9, 10) that form a treatment gap (8). The surface (9) is formed by a band (14) that circulates at guide rollers (11-13). The surface (10) is formed by a circulating outer wall of a heatable roller (4). The band exhibits a flexible thickness region at a side facing a paper or cardboard web (2), where the thickness region exhibits a spring rate smaller than a spring rate of the web to start treatment in the treatment gap.
IPC 8 full level
D21G 1/00 (2006.01)
CPC (source: EP)
D21G 1/00 (2013.01); D21G 1/006 (2013.01); D21G 1/0066 (2013.01)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
DOCDB simple family (publication)
EP 2275601 A1 20110119; EP 2275601 B1 20120104; AT E540159 T1 20120115; PL 2275601 T3 20120629
DOCDB simple family (application)
EP 09008728 A 20090703; AT 09008728 T 20090703; PL 09008728 T 20090703