EP 1366234 A1 20031203 - METHOD AND DEVICE FOR PRODUCING TRANSVERSE FLOWS IN A SHEET FORMING DEVICE
Title (en)
METHOD AND DEVICE FOR PRODUCING TRANSVERSE FLOWS IN A SHEET FORMING DEVICE
Title (de)
VERFAHREN UND VORRICHTUNG ZUR ERZEUGUNG VON QUERSTRÖMUNGEN IN EINER BLATTBILDUNGSEINRICHTUNG
Title (fr)
PROCEDE ET DISPOSITIF SERVANT A PRODUIRE DES COURANTS TRANSVERSAUX DANS UN SYSTEME DE FABRICATION DE FEUILLES
Publication
Application
Priority
- DE 10109413 A 20010227
- EP 0202075 W 20020227
Abstract (en)
[origin: WO02070818A1] In a first embodiment, the invention relates to a method and to a device (1) for improving the properties of a web (2.1) of fiber material, especially a paper, cardboard or tissue web, produced in a sheet forming device from a suspension (2) of fiber material. The fibrous web (2.1) is formed from the fibrous suspension (2) and is guided via a plurality of sieve guiding and drainage elements (4) in the sieve direction (S) by means of at least one sieve (3.1, 3.2). The inventive method is further characterized in that transverse flows (Q) relative to the sieve direction (S) of the sieve (3.1, 3.2) are produced in the fibrous suspension (2) in order to achieve improved web properties and higher transverse strength. The inventive device (1) is further characterized in that at least one sieve guiding or drainage element (4) is structured and/or directed at an angle to the sieve direction (S) in order to produce transverse flows (Q) relative to the sieve direction (S) of the sieve (3.1, 3.2) in order to achieve improved web properties and higher transverse strength.
IPC 1-7
IPC 8 full level
D21F 1/00 (2006.01); D21F 1/48 (2006.01); D21F 1/52 (2006.01)
CPC (source: EP US)
D21F 1/009 (2013.01 - EP US); D21F 1/48 (2013.01 - EP US); D21F 1/483 (2013.01 - EP US); D21F 1/52 (2013.01 - EP US); D21F 1/523 (2013.01 - EP US)
Citation (search report)
See references of WO 02070818A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 02070818 A1 20020912; DE 10109413 A1 20020905; EP 1366234 A1 20031203; US 2004188050 A1 20040930
DOCDB simple family (application)
EP 0202075 W 20020227; DE 10109413 A 20010227; EP 02719941 A 20020227; US 64926403 A 20030827