US 7,461,438 B2
Apparatus and method for applying finishing agents onto a nonwoven web
Sebastian Sommer, Troisdorf (Germany); Jens Guedden, Troisdorf (Germany); and Thomas Fett, Wesseling (Germany)
Assigned to Reifenhaeuser GmbH & Co. Maschinenfabrik, Troisdorf (Germany)
Filed on Mar. 02, 2005, as Appl. No. 11/68,850.
Claims priority of application No. 10 2004 010 245 (DE), filed on Mar. 03, 2004; and application No. 05003500 (EP), filed on Feb. 18, 2005.
Prior Publication US 2005/0196538 A1, Sep. 08, 2005
Int. Cl. B05C 1/04 (2006.01)
U.S. Cl. 28—167  [28/169; 118/211] 9 Claims
OG exemplary drawing
 
1. An apparatus for treating and applying finishing agents onto a nonwoven web, the apparatus comprising:
at least one device for pre-bonding the nonwoven web,
at least one convexly arcuate guide surface,
means for guiding the pre-bonded nonwoven web in an arcuate path in a travel direction over and in contact with the surface, the guide surface being formed along the path with an array of outlet openings and formed at a downstream end of the path with a sharp breakaway edge directed downstream in the travel direction, and
means for supplying a finishing agent to the openings for applying the finishing agent onto the nonwoven web guided over the guide surface.