Erasable Ink, Method of Erasing Image Including the Same, and Method of Recycling Recording Medium Using the Erasing Method
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United States of America Patent
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Issued Date -
Oct 4, 2007
app pub date -
Sep 7, 2005
filing date -
Sep 10, 2004
priority date (Note) -
Abandoned
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Abstract
The invention provides a method for easily and promptly erasing an image (including a character) formed on a printed article with a low cost, and an apparatus employing such method. A printed article bearing an image formed on a surface including an inorganic pigment is exposed to a reactive gas generated by creeping discharge or corona discharge induced by a voltage applied between a pair of opposed electrodes, whereby the image is erased.
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