Thermally sensitive recording medium
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United States of America Patent
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Dec 16, 2008
Grant Date -
Nov 15, 2007
app pub date -
Sep 30, 2005
filing date -
Sep 30, 2004
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A thermally sensitive recording medium has at least one layer on a substrate which is a thermally sensitive recording layer that contains a colorless or pale colored electron-donating leuco dye and an electron-accepting color-developing agent. At least one layer on the substrate contains a hydrated silicic acid compound which is treated by wet grinding treatment in a deposition process of the hydrated silicic acid compound. A thermally sensitive recording medium of high brightness, which is superior in color-developing sensitivity and coating layer strength and, further, has excellent head abrasion resistance, less debris adhering and sticking resistance is obtained.
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