| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a thermosensitive recording body, the transparency of an non-recorded part of which is high, the shelf stability to heat and the shelf stability to humidity of a recorded part of which are excellent and which has the highest optical density of the recorded part is at least 3.2 and the proportional coefficient of the optical density of the recorded part to applied energy of which lies in 1.0-3.0. <P>SOLUTION: In the thermosensitive recording body having a transparent film, a thermosensitive recording layer including a leuco dye, a coloring agent and an adhesive and a protective layer in the order named, the leuco dye is used in the form of a composite particle of the leuco dye and hydrophobic resin and at least 4,4'-dihydroxy diphenyl sulfone and 3,3'-diallyl-4,4'-dihydroxy diphenyl sulfone are used as the coloring agent under the condition that the mass ratio of the 4,4'-dihydroxy diphenyl sulfone to the 3, 3'-diallyl-4,4'-dihydroxy diphenyl sulfone is set to be 10:90-90:10. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
