EP 0043289 A2 19820106 - Method and apparatus for manufacturing paper and paperboard.
Title (en)
Method and apparatus for manufacturing paper and paperboard.
Title (de)
Verfahren und Vorrichtung zur Herstellung von Papier und Pappe.
Title (fr)
Procédé et dispositif pour fabriquer le papier et le carton.
Publication
Application
Priority
GB 8021673 A 19800702
Abstract (en)
In the manufacture of paper or paperboard, a web of fibrous cellulosic material is wet-formed on an endless foraminous forming band (11), is partially dewatered in a vacuum dewatering stage (13) and is then dried. In order to improve drying of the web and reduce energy consumption and space utilization, the partially dewatered web is subjected to a press-drying stage whilst supported by the forming band (11). In this press-drying stage, the web and band are advanced through a plurality of pressure nips (15-24) provided between two rotating heated drying cylinders (18,25) and a plurality of cooperating pressure rollers (19-28), and the web is pressed into contact with the circumferences of the cylinders between the pressure nips by the forming band (11).
IPC 1-7
IPC 8 full level
D21F 5/02 (2006.01); D21F 1/00 (2006.01); D21F 3/02 (2006.01); D21F 9/02 (2006.01); D21F 11/04 (2006.01); D21F 11/14 (2006.01)
CPC (source: EP)
D21F 3/0281 (2013.01); D21F 11/04 (2013.01); D21F 11/14 (2013.01); D21H 5/2685 (2013.01); D21H 25/04 (2013.01)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0043289 A2 19820106; EP 0043289 A3 19820120; FI 812060 L 19820103; JP S5739296 A 19820304
DOCDB simple family (application)
EP 81302997 A 19810701; FI 812060 A 19810701; JP 10435581 A 19810702