| 摘要 |
According to the present invention, there can be provided a black dyestuff for heat-sensitive transfer record comprising at least one orange dyestuff represented by the formula Ar1-N=N-Ar2-N=N-Ar3(1) [wherein each of Ar1, Ar2 and Ar3 is independently an aryl group which may have a substituent] and at least one blue dyestuff represented by the formula <IMAGE> (2) [wherein each of R1, R2 and R3 is independently a hydrogen atom, halogen atom, nitro group, hydroxyl group, alkyl group which may have a substituent, alkoxy group, alkylsulfonylamino group or alkylcarbonylamino group, and each of R4 and R5 is independently an alkyl group which may have a substituent, and a black heat-sensitive transfer sheet in which the above-mentioned dyestuff is used.
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