Heat sensitive recording material

Details Heat sensitive recording material Heat sensitive recording material

1996-07-25

1998-05-19

Hess, Bruce H.

Record receiver having plural interactive leaves or a colorless

Having a colorless color-former, developer therefor, or...

Identified organic electron acceptor other than phenolic resin

503208, 503209, 503216, 503220, 503221, B41M 530

Patent

active

057535884

ABSTRACT:
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) ##STR1## wherein R.sub.1 to R.sub.8 are defined in the specification.

REFERENCES:
patent: 5401699 (1995-03-01), Ohashi et al.

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