EP 0150777 A3 19880810 - METHOD FOR THE MANUFACTURE OF A NON-WOVEN FIBROUS WEB
Title (en)
METHOD FOR THE MANUFACTURE OF A NON-WOVEN FIBROUS WEB
Publication
Application
Priority
- US 57428784 A 19840126
- US 57843184 A 19840209
Abstract (en)
[origin: EP0150777A2] Apparatus and method for the manufacture of a non-woven fibrous web such as paper from a dispersion of fibers in a foamed liquid in which fiber furnish in a foamed liquid comprising a solution of surtactant in water is discharged from a headbox into the nip of a twin forming wire prior to its passage over a forming roll. The watersurfactant solution is drained from the web and recycled as a foamed liquid containing about 65% air in the form of bubbles of from about 20 to about 200 microns in diameter. The foamed liquid is directed into a mix tank wherein a slurry containing fibers at 20% to 55% solids is added and mixed. The slurry is pumped to the headbox and into the nip of the forming wires.
IPC 1-7
IPC 8 full level
D21F 9/00 (2006.01); D21F 11/00 (2006.01)
CPC (source: EP)
D21F 9/003 (2013.01); D21F 11/002 (2013.01)
Citation (search report)
- [XPD] US 4443297 A 19840417 - CHESHIRE JAMES O [US], et al
- [AP] EP 0101319 A2 19840222 - JAMES RIVER DIXIE NORTHERN INC [US]
- [A] LU 48831 A1 19661214
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0150777 A2 19850807; EP 0150777 A3 19880810; EP 0150777 B1 19911106; EP 0150777 B2 19941130; DE 3584572 D1 19911212
DOCDB simple family (application)
EP 85100470 A 19850117; DE 3584572 T 19850117