Record receiver having plural interactive leaves or a colorless – Having a colorless color-former – developer therefor – or... – Having nonchromogenic liquid spread-control or...
Patent
1994-02-28
1995-03-07
Hess, B. Hamilton
Record receiver having plural interactive leaves or a colorless
Having a colorless color-former, developer therefor, or...
Having nonchromogenic liquid spread-control or...
503208, 503216, 503217, 503221, 503225, B41M 530
Patent
active
053958144
ABSTRACT:
The present invention provides a heat sensitive recording material comprising a recording layer formed on a substrate and containing a colorless or light-colored basic dye and a color acceptor, the material being characterized in that the basic dye is 3-diethylamino-7-[m-(trifluoromethyl)phenylamino]fluoran and/or 3-di-n-pentylamino-6-methyl-7-phenylaminofluoran, the color acceptor being 4,4'-dihydroxydiphenylsulfone.
REFERENCES:
patent: 5212145 (1993-05-01), Tsuchida et al.
Ishida Katsuhiko
Mandoh Ritsuo
Okimoto Tomoyuki
Hess B. Hamilton
New Oji Paper Co. Ltd.
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