Patent ID: 6827781
Filing Date: 2004-12-07
Classification: B05B,B41F

Abstract:
Device for moistening a material web moved in a transport direction by means of a spray device for spraying a water fog onto the material web under an influence of an electrostatic field generated between the spray device and an electrostatic charge on a surface of the material web, characterized in thata reversing roller for reversing the material web is provided in the transport direction upstream of the spray device, that the reversing roller has associated with it a device for electrostatic charging designed as a corona-charging electrode, and that the spray device is provided downstream of the reversing roller and comprises two water spray heads located on both sides of the material web, the spray heads being grounded or having a polarity applied thereto opposite that of the corona electrode, wherein an electrostatic field is generated between the electrostatic charge on the material web applied by the corona charging electrode and each spray head on each side of the material web.