Image permanence method
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United States of America Patent
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Sep 26, 1989
Issued Date -
N/A
app pub date -
Jun 30, 1988
filing date -
Aug 14, 1986
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of preventing smudging of indicia printed on a surface by selective application of an amount of coating material to lubricate the contact with surfaces abrading the printed indicia or to provide physical separation from abrading surfaces, and thus prevent smearing. The coating material is preferably a Teflon micropowder that is applied by dispensing controlled amounts through a plurality of apertures adjacent the surface of a piece of paper on which indicia has just been printed by a non-impact printer such as a laser printer.
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