Global Patent Index - EP 0945546 A3

EP 0945546 A3 20000223 - 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

EP 0945546 A3 (DE)

Application

EP 99105649 A

Priority

DE 19813640 A

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

D21G 1/00; D21G 1/02

IPC 8 full level

D21G 1/00 (2006.01)

CPC (source: EP)

D21G 1/00 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

DOCDB simple family (publication)

EP 0945546 A2 19990929; EP 0945546 A3 20000223; EP 0945546 B1 20021106; AT 227374 T 20021115; CA 2267030 A1 19990927; CA 2267030 C 20040127; DE 19813640 A1 19990930; US 6230615 B1 20010515

DOCDB simple family (application)

EP 99105649 A 19990319; AT 99105649 T 19990319; CA 2267030 A 19990326; DE 19813640 A 19980327; US 27719599 A 19990326