EP 0136329 A4 19890119 - METHOD AND APPARATUS FOR PRODUCING PAPER AND OTHER NONWOVEN FIBROUS WEBS.
Title (en)
METHOD AND APPARATUS FOR PRODUCING PAPER AND OTHER NONWOVEN FIBROUS WEBS.
Title (de)
VERFAHREN UND VORRICHTUNG ZUR HERSTELLUNG VON PAPIER ODER SONSTIGEN NICHTGEWOBENEN FASERBÄNDERN.
Title (fr)
PROCEDE ET APPAREIL POUR PRODUIRE DU PAPIER OU D'AUTRES BANDES FIBREUSES NON TISSEES.
Publication
Application
Priority
US 46540083 A 19830210
Abstract (en)
[origin: WO8403112A1] A method of producing a nonwoven fibrous web (20), such as paper, from a dispersion (15), preferably acqueous, of fibers wherein the fiber consistency is greater than 6 % of the dispersion weight and/or the dispersion is permanently stable until subjected to a destabilizing step, such as application of vacuum (13, 14). The dispersion (15) is deposited against a foraminous support (11, 12) and the fibers are separated from the dispersing medium to form a web (20) on the support (11, 12). The dispersing medium is preferably foam formed by intermixing air in water and surfactant. Also disclosed is an apparatus for carrying out the above method and the products made thereby.
IPC 1-7
IPC 8 full level
D21F 9/02 (2006.01); D21F 9/00 (2006.01); D21F 11/00 (2006.01); D21F 11/02 (2006.01)
CPC (source: EP)
D21F 9/003 (2013.01); D21F 11/002 (2013.01)
Citation (search report)
- [X] US 3506538 A 19700414 - FRIEDBERG NORMAN D, et al
- [X] FR 2179149 A1 19731116 - WIGGINS TEAPE RES DEV [GB]
Designated contracting state (EPC)
BE DE FR GB SE
DOCDB simple family (publication)
WO 8403112 A1 19840816; CA 1230995 A 19880105; EP 0136329 A1 19850410; EP 0136329 A4 19890119; FI 843904 A0 19841004; FI 843904 L 19841004; JP S60500628 A 19850502
DOCDB simple family (application)
US 8400168 W 19840208; CA 446944 A 19840207; EP 84901040 A 19840208; FI 843904 A 19841004; JP 50102384 A 19840208