Record receiver having plural interactive leaves or a colorless – Having a colorless color-former – developer therefor – or... – Having nonchromogenic liquid spread-control or...
Patent
1986-03-06
1987-12-15
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...
427151, 503220, 503224, 503225, B41M 518
Patent
active
047133643
ABSTRACT:
A heat-sensitive recording material excellent in stability of recorded images is disclosed, which comprises a support having formed thereon a heat-sensitive recording layer comprising a colorless or pale-colored basic dye and a color developer capable of forming a color upon coming into contact with the basic dye, wherein said heat-sensitive recording layer further comprises at least one compound selected from the compounds represented by following formulae (I) and (II): ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, R.sub.7, and R.sub.8 independently represent a hydrogen atom or an alkyl group having from 1 to 4 carbon atoms.
REFERENCES:
patent: 4050945 (1977-09-01), Suzuki
patent: 4375492 (1983-03-01), Fox
patent: 4467338 (1984-08-01), Hiraishi
Hess Bruce H.
Kanzaki Paper Mfg. Co. Ltd.
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