Heat sensitive recording material

Details Heat sensitive recording material Heat sensitive recording material

1991-01-30

1992-07-21

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

503220, 503221, B41M 530

Patent

active

051322722

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 reactive with the dye to form a color when contacted therewith, the recording material being characterized in that, the basic dye comprises 1 at least one compound represented by the formula below [I] and 2 3-di-n-butylamino-6-methyl-7-anilinofluoran and/or 3-di-n-pentylamino-6-methyl-7-anilinofluoran, and the color acceptor comprises 4,4'-isopropylidenediphenol ##STR1## wherein R.sub.1, R.sub.2, a, b, c and d are as defined in the specification.

REFERENCES:
patent: 4580153 (1986-04-01), Kondo et al.
patent: 4641160 (1987-02-01), Kondo et al.
patent: 4730057 (1988-03-01), Kanda et al.
patent: 4761396 (1988-08-01), Kanda et al.

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