Patent · US Expired

Device for humidifying a material web

US6827781B1 · kind B1 · utility

4Cited by

7References

26Claims

0Family size

Assignee

Eltex Elektrostatik GmbH · DE

Inventors

Ernst August Hahne · Allschwil, CH
Franz Knopf · Bühl, DE

Key dates

Filing date	Oct 6, 2000
Grant date	Dec 7, 2004
Priority date	—
Expiry date	May 17, 2021

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB05B5/14
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A device for moistening a material web moved in the transport direction, is preferably used for re-moistening a paper or textile web dried after printing by means of spray device for spraying a water fog onto the material web under the influence of an electrostatic field produced by a device for electrostatic charging. The device includes a reversing roller provided in the transport direction upstream of the spray device for deflecting the material web. The reversing roller has associated with it a device designed as a corona-charging electrode for electrostatic charging and the spray device has two water spray heads located on both sides of the material web.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.