Heat sensitive recording material

Details Heat sensitive recording material Heat sensitive recording material

B - Operations, Transporting

41

M

B41M 5/30 (2006.01) B41M 5/327 (2006.01) B41M 5/333 (2006.01)

Patent

CA 2181947

The present invention provides a heat sensitive recording material comprising a substrate and a recording layer thereon incorporating a colorless or light-colored basic dye and a color acceptor, the recording material being characterized in that, the basic dye comprises an indolyldiazaphthalide derivative of the formula (1), and the color acceptor comprises a diphenyl sulfone derivative of the formula (2) and/or a benzanilide derivative of the formula (3) Image (1) Image (2) Image (3) wherein R1 to R8 are defined in the specification.

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