Record receiver having plural interactive leaves or a colorless – Having a colorless color-former – developer therefor – or... – Having nonchromogenic liquid spread-control or...
Patent
1985-12-30
1988-01-26
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, 427151, 503212, 503216, 503217, 503221, B41M 518
Patent
active
047217014
ABSTRACT:
A thermosensitive recording sheet having a thermosensitive color developing layer containing a basic leuco dye and an organic color developer, said organic color developer consisting of at least partly of a halogen-substituted benzoic acid zinc salt represented by the following general formula ##STR1## wherein X.sub.1 represents a halogen atom, X.sub.2 represents a hydrogen or halogen atom, and R.sub.1, R.sub.2 and R.sub.3, independently from each other, represent a hydrogen atom or an alkyl, alkoxy, cycloalkyl, nitro, cyano or hydroxyl group.
REFERENCES:
patent: 3871900 (1975-03-01), Hayaishi et al.
patent: 3934070 (1976-01-01), Kimura et al.
patent: 4514745 (1985-04-01), Suzuki et al.
Fujimura Fumio
Minami Toshiaki
Nagai Tomoaki
Satake Toshimi
Hess Bruce H.
Jujo Paper Co. Ltd.
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