| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat-sensitive recording body which shows superior storage stability and record sensitivity at a recording part. SOLUTION: In a heat-sensitive recording body in which a heat sensitive recording layer containing a leuco dye, a colorant and a storage stability improvement agent is set on a supporting body, the storage improver is a compound expressed by a formula. The leuco dye is at least one selected from 3-(N-ethyl-p-toluidino)-6-methyl-7-anilinofluorane and 3-(N-ethyl-p-toluidino)-6- methyl-7-(p-toluidino)fluorane. The colorant is at least one selected from 1,1-bis(4- hydroxyphenyl)1-phenymethane, 2,4'-dihydroxy diphenylsulfone, 4,4'-dihydroxy- diphenylsulfone, etc. |
