EP 1385635 A1 20040204 - DEVICE FOR SUCTIONING AN AIR BOUNDARY LAYER FROM A RUNNING WEB OF MATERIAL AND APPARATUS FOR COATING A RUNNING WEB USING SAID SUCTION DEVICE
Title (en)
DEVICE FOR SUCTIONING AN AIR BOUNDARY LAYER FROM A RUNNING WEB OF MATERIAL AND APPARATUS FOR COATING A RUNNING WEB USING SAID SUCTION DEVICE
Title (de)
VORRICHTUNG ZUM ABSAUGEN EINER LUFTGRENZSCHICHT VON EINER LAUFENDEN MATERIALBAHN UND VORRICHTUNG ZUM BESCHICHTEN EINER LAUFENDEN MATERIALBAHN MIT EINER DERARTIGEN ABSAUGEVORRICHTUNG
Title (fr)
DISPOSITIF POUR ASPIRER UNE COUCHE LIMITE D'AIR D'UNE BANDE DE MATIERE EN MOUVEMENT ET DISPOSITIF DE REVÊTEMENT D'UNE BANDE DE MATIERE EN MOUVEMENT L'UTILISANT.
Publication
Application
Priority
- DE 10117667 A 20010409
- EP 0203775 W 20020405
Abstract (en)
[origin: DE10117667A1] In order to suction the air boundary layer from a running web of material (1) before coating with a curtain-coater, a suction box (8) is arranged in the area of a roller (4) deflecting the web of material (1), said suction box having the following characteristics: a) the suction box (8) extends in its breadth along the axial length of the deflection roller (4); it is open towards the deflection roller (4) and attached to a suction blower; b) it has a corresponding seal (10, 11) on the inlet and the outlet sides, which form a gap (12, 13) with the web (1) and extend along the axial length of the deflection roller (4), wherein at least the end of the seal (10) on the inlet side and the beginning of the seal (11) on the outlet side are located on the deflection roller (4) in the deflection area of the web (1); c) the suction box (8) has a front-face seal (14) on each of the front faces of the deflection roller (4), which extend outside adjacent to the seal of the front face, parallel thereto and at a close distance thereof; d) the seal (11) on the outlet side forms an outlet gap (13) with the web (1), whose height and length measured in the direction of advancement of the web are substantially constant along the entire width of the suction box (8), wherein the length is longer than 10 mm, preferably longer than 30 mm, especially 50 mm-70 mm, and the height of the gap is selected depending on the speed of the web in such a way that the value of the product web speed (m/min) x gap height (in mm) is less than 1500.
IPC 1-7
IPC 8 full level
B05C 5/00 (2006.01); D21H 23/48 (2006.01); G03C 1/74 (2006.01)
CPC (source: EP US)
B05C 5/005 (2013.01 - EP US); D21H 23/48 (2013.01 - EP US); G03C 1/74 (2013.01 - EP US); Y10S 118/04 (2013.01 - EP US)
Citation (search report)
See references of WO 02081102A1
Designated contracting state (EPC)
DE FI
DOCDB simple family (publication)
DE 10117667 A1 20021010; EP 1385635 A1 20040204; EP 1385635 B1 20120912; US 2004112282 A1 20040617; US 7175710 B2 20070213; WO 02081102 A1 20021017
DOCDB simple family (application)
DE 10117667 A 20010409; EP 0203775 W 20020405; EP 02727525 A 20020405; US 47478903 A 20031203