EP 0945546 B1 20021106 - Calender for treating a paper web
Title (en)
Calender for treating a paper web
Title (de)
Kalander zur Behandlung einer Papierbahn
Title (fr)
Calandre pour le traitement d'une bande de papier
Publication
Application
Priority
DE 19813640 A 19980327
Abstract (en)
[origin: EP0945546A2] 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.
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