| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a thermosensitive recording body which has excellent color developing sensitivity and good heat resistance. <P>SOLUTION: The thermosensitive recording body has a thermosensitive recording layer containing an electron-donative leuco dye with no color or pale color and an electron-acceptive color developer on a support. The thermosensitive recording layer contains 2,4'-dihydroxydiphenyl sulfone, wherein particulate granularity distribution (volume base) is ≤0.5 μm at 50% diameter and ≤1.2 μm at 90% diameter when measured by a laser diffraction system granularity distribution measuring apparatus, as the electron-acceptive color developer. <P>COPYRIGHT: (C)2010,JPO&INPIT |
