| 摘要 |
A thermal recording sheet having a thermal color developing layer containing a color developer and a colorless or pale colored basic chromogenic dye, which further contains a stabilizer of Formula (I) and a sensitizer of Formula (II) or Formula (III), thereby obtaining a high sensitivity and improved image stability: Formula (I) <IMAGE> (I) wherein A indicates <IMAGE> or <IMAGE> R1 and R2 individually indicate hydrogen or methyl; alpha is 0 or an integer from 1 to 5; beta and gamma individually indicate an integer from 1 to 5; B indicates <IMAGE> <IMAGE> <IMAGE> C and D individually indicate chlorine, bromine, methyl, methoxy, or ethoxy; and m and n individually indicate 0, 1, or 2; Formula (II) <IMAGE> (II) Formula (III) <IMAGE> (III)
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