Thermosensitive decolorable ink composition
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United States of America Patent
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Dec 31, 2013
Grant Date -
Jan 19, 2012
app pub date -
Mar 25, 2010
filing date -
Mar 27, 2009
priority date (Note) -
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Abstract
In order to provide a thermosensitive decolorable ink composition which can readily be decolored with simple heating by rubbing and the like without using a microcapsule and is not developed again in color even after stored at very low temperature (−50° C. or lower) and which is excellent in stability with passage of time and has a vivid hue intensity, the above thermosensitive decolorable ink composition is provided with a constitution in which it contains as a colorant, color developing particles comprising at least a leuco dye, a developer and a crystalline substance and in which it further contains a decolorant comprising an amorphous resin.
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