Dyestuff for heat sensitive transfer record and transfer...

Details Dyestuff for heat sensitive transfer record and transfer... Dyestuff for heat sensitive transfer record and transfer...

C - Chemistry, Metallurgy

09

B

C09B 67/36 (2006.01) C09B 67/22 (2006.01) B41M 5/38 (1990.01)

Patent

CA 2074745

ABSTRACT OF THE DISCLOSURE 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 (1) 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 (2) 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, alkyls- ulfonylamino 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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