EP 1460171 A3 20050525 - Method of treating a fibrous web
Title (en)
Method of treating a fibrous web
Title (de)
Verfahren zur Behandlung einer Faserstoffbahn
Title (fr)
Procédé de traitement d'une bande fibreuse
Publication
Application
Priority
DE 10311993 A 20030319
Abstract (en)
[origin: EP1460171A2] In a process to dewater a moving web of paper or carton, the web runs at high speed with a dewatering felt between two contra-rotating drums (1, 2) forming a nip gap (N). The web then follows the contour of one drum (2) to a lift-off point (6) at which a gap (5) is formed between the web (3) and drum (2). Hot steam is injected into the gap, promoting separation of web from drum. The same steam separation process may also be used at a web drying or glazing station. The quantity of hot steam discharged into the gap is regulated.
IPC 1-7
IPC 8 full level
D21F 3/00 (2006.01); D21F 3/02 (2006.01); D21F 5/04 (2006.01); D21F 7/00 (2006.01); D21G 1/00 (2006.01); D21G 7/00 (2006.01)
CPC (source: EP)
D21F 3/0272 (2013.01); D21F 5/042 (2013.01); D21F 7/008 (2013.01); D21G 1/00 (2013.01)
Citation (search report)
- [XY] DE 4303315 A1 19930624 - VOITH GMBH J M [DE]
- [X] DE 413177 C 19250509 - OGDEN MINTON
- [X] US 5534116 A 19960709 - KARVINEN MIKKO [FI], et al
- [Y] US 1605067 A 19261102
- [A] DE 19731100 A1 19990121 - VOITH SULZER PAPIERMASCH GMBH [DE]
- [A] US 6485610 B1 20021126 - LOIPPO KIMMO [FI]
- [A] US 2002078588 A1 20020627 - KAHL PETER [DE], et al
- [A] DE 10157690 C1 20030220 - VOITH PAPER PATENT GMBH [DE]
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1460171 A2 20040922; EP 1460171 A3 20050525; EP 1460171 B1 20100120; AT E455900 T1 20100215; DE 10311993 A1 20041014; DE 502004010655 D1 20100311
DOCDB simple family (application)
EP 04101045 A 20040315; AT 04101045 T 20040315; DE 10311993 A 20030319; DE 502004010655 T 20040315