Heat sensitive recording material

Details Heat sensitive recording material Heat sensitive recording material

1989-04-06

1990-08-21

Hess, Bruce H.

Record receiver having plural interactive leaves or a colorless

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

Having nonchromogenic liquid spread-control or...

427150, 503208, 503214, 503221, 503226, B41M 518

Patent

active

049506374

ABSTRACT:
In a heat sensitive recording material comprising a substrate and a heat sensitive recording layer thereon incorporating a colorless or light-colored basic dye and a color acceptor which is reactive with the dye to form a color when contacted therewith, the recording material characterized in that at least one of the compounds of the formula (I) is contained in the heat sensitive recording layer ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and R.sub.6 are same or different and are hydrogen atom, halogen atom, C.sub.1 .about.C.sub.5 alkyl or C.sub.1 .about.C.sub.5 alkoxyl.

REFERENCES:
patent: 4473831 (1984-09-01), Watanabe
patent: 4771033 (1988-09-01), Shimizu et al.

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