Record receiver having plural interactive leaves or a colorless – Having a colorless color-former – developer therefor – or... – Plural colors or plural diverse systems
Patent
1997-04-22
1998-05-12
Hess, Bruce H.
Record receiver having plural interactive leaves or a colorless
Having a colorless color-former, developer therefor, or...
Plural colors or plural diverse systems
503202, 503209, 503210, 503220, 503224, B41M 532
Patent
active
057504636
ABSTRACT:
There is described a novel thermographic recording film, and more specifically, a novel image-forming system incorporated therein which employs both thiolactone and silver reduction chemistries.
Thermographic recording films comprising the novel image-forming system of the present invention exhibit excellent thermal sensitivity and visual color saturation, enhanced image density, and desirable visual minimum optical densities.
REFERENCES:
patent: 4904572 (1990-02-01), Dombrowski et al.
Dombrowski, Jr. Edward J.
Jones Robert L.
Warner John C.
Yang Jiyue
Hess Bruce H.
Kispert Jennifer A.
Polaroid Corporation
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