EP 0439571 B1 19951129 - IMPROVED SYSTEM AND METHOD FOR FORMING AND DEWATERING A WEB ON A FOURDRINIER FABRIC.
Title (en)
IMPROVED SYSTEM AND METHOD FOR FORMING AND DEWATERING A WEB ON A FOURDRINIER FABRIC.
Title (de)
VERFAHREN ZUR BILDUNG UND BEFREIUNG VON WASSER VON EINEM BAND AUF EINER FOURDRINIERMASCHINE.
Title (fr)
SYSTEME ET PROCEDE AMELIORES DE FORMAGE ET D'EGOUTTAGE MECANIQUE D'UNE BANDE SUR UN TISSU DE FOURDRINIER.
Publication
Application
Priority
- US 9004144 W 19900723
- US 38474489 A 19890724
Abstract (en)
[origin: WO9101408A1] An improved system in a paper making process of forming and dewatering fiber/aqueous dispersion (44) by submerged drainage in which air does not penetrate the fiber/aqueous dispersion (44) nor the paper web as it is being formed; the dewatering being accomplished by altering the natural tension of the water meniscus so as to induce enhanced drainage of water from the aqueous dispersion (44) of paper making fibers, especially in the wetter end of the system.
IPC 1-7
IPC 8 full level
D21F 1/48 (2006.01); D21F 1/52 (2006.01); D21F 9/00 (2006.01)
CPC (source: EP)
D21F 1/48 (2013.01); D21F 1/52 (2013.01); D21F 9/003 (2013.01)
Designated contracting state (EPC)
AT CH DE ES FR GB IT LI SE
DOCDB simple family (publication)
WO 9101408 A1 19910207; AT E130891 T1 19951215; CA 2040439 A1 19910125; CA 2040439 C 20000222; DE 69023894 D1 19960111; DE 69023894 T2 19960704; EP 0439571 A1 19910807; EP 0439571 A4 19920122; EP 0439571 B1 19951129; ES 2081999 T3 19960316; FI 911934 A0 19910422
DOCDB simple family (application)
US 9004144 W 19900723; AT 90911884 T 19900723; CA 2040439 A 19900723; DE 69023894 T 19900723; EP 90911884 A 19900723; ES 90911884 T 19900723; FI 911934 A 19910422