Thermosensitive recording medium
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United States of America Patent
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Issued Date -
May 11, 2017
app pub date -
May 26, 2015
filing date -
Jun 16, 2014
priority date (Note) -
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Abstract
A thermosensitive recording medium is provided that is excellent in heat discoloration resistance in the blank portions and in bar code readability. It also has excellent water resistance and printing (recording) run-ability. The thermosensitive recording medium includes a support, a thermosensitive recording layer installed on the support, and a protective layer on the thermosensitive recording layer. The thermosensitive recording layer contains two kinds of electron accepting color developing agents, a sulfonic acid compound and a diphenyl sulfone compound. Both the thermosensitive recording layer and the protective layer contain crosslinking agents, and at least one, and preferably both, of the thermosensitive recording layer and the protective layer contain an ammonium zirconium carbonate as the crosslinking agent.
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