Apparatus and Method for Neutralizing Static Charge on Both Sides of a Web Exiting an Unwinding Roll
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United States of America Patent
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Issued Date -
Mar 20, 2014
app pub date -
Sep 17, 2012
filing date -
Sep 17, 2012
priority date (Note) -
Abandoned
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Abstract
An apparatus and a method for neutralizing static charges on a web exiting an unwinding roll are disclosed. The apparatus comprises two static dissipaters. The first static dissipater is positioned to neutralize static charges on the outside surface of the unwinding roll. The second static dissipater is positioned to neutralize static charges on the inside surface of the web. The method comprises neutralizing static charges on the outside surface of the roll using a static neutralizer, separating the web from the roll at an unwinding nip, and subsequently neutralizing static charges on the inside surface of the web using a static neutralizer. Disclosed also are the apparatus and the method adapted for a roll that may be unwound in either the clockwise or in the counter-clockwise direction and from an unwind turret having a first spindle in a load position and a second spindle in a run position.
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