EP 0945546 A2 19990929 - Calender, particularly for treating a paper web
Title (en)
Calender, particularly for treating a paper web
Title (de)
Kalander, insbesondere zur Behandlung einer Papierbahn
Title (fr)
Calandre, en particulier pour le traitement d' une bande de papier
Publication
Application
Priority
DE 19813640 A 19980327
Abstract (en)
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.
Abstract (de)
Es wird ein Kalander (1) angegeben, insbesondere zur Behandlung einer Papierbahn (18), mit einem Walzenstapel aus mindestens drei Walzen (2, 3, 6-9) und mit mindestens einem Doppelweichnip (19, 21), der durch zwei Walzen (6-9) mit elastischer Oberfläche gebildet ist. Bei einem derartigen Kalander möchte man die Einwirkungsmöglichkeiten auf die Materialbahn verbessern. Hierzu ist mindestens eine der den Doppelweichnip (19-21) bildenden Walzen (6-9) beheizbar. <IMAGE>
IPC 1-7
IPC 8 full level
CPC (source: EP US)
D21G 1/00 (2013.01 - EP US)
Designated contracting state (EPC)
AT DE FI FR GB SE
DOCDB simple family (publication)
EP 0945546 A2 19990929; EP 0945546 A3 20000223; EP 0945546 B1 20021106; AT E227374 T1 20021115; CA 2267030 A1 19990927; CA 2267030 C 20040127; DE 19813640 A1 19990930; DE 59903283 D1 20021212; US 6230615 B1 20010515
DOCDB simple family (application)
EP 99105649 A 19990319; AT 99105649 T 19990319; CA 2267030 A 19990326; DE 19813640 A 19980327; DE 59903283 T 19990319; US 27719599 A 19990326