Apparatus and method to control free charge on moving webs

The present invention is a method and apparatus for controlling free charge on a moving web. The method and apparatus includes two DC ionizers one of each polarity positioned near one surface of the web. A conductive plate mounted on the opposite side of the web opposite the DC ionizers is controlle...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	DURKIN, WILLIAM J
Format:	Patent
Sprache:	eng
Schlagworte:	CINEMATOGRAPHY ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY ELECTROGRAPHY ELECTROPHOTOGRAPHY HOLOGRAPHY MAGNETOGRAPHY NATURALLY-OCCURRING ELECTRICITY PHOTOGRAPHY PHYSICS STATIC ELECTRICITY
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	The present invention is a method and apparatus for controlling free charge on a moving web. The method and apparatus includes two DC ionizers one of each polarity positioned near one surface of the web. A conductive plate mounted on the opposite side of the web opposite the DC ionizers is controlled in response to the free charge measured on the web downstream of the ionizers. The present invention allows control of the free charge on the web to almost zero without imparting any frequency in the charge on the web.