Record receiver having plural interactive leaves or a colorless – Having a colorless color-former – developer therefor – or... – Heavy metal reactant
Patent
1988-01-15
1989-06-13
Hess, Bruce H.
Record receiver having plural interactive leaves or a colorless
Having a colorless color-former, developer therefor, or...
Heavy metal reactant
427151, 428913, 503216, 503217, 503218, 503220, 503223, 503226, B41M 518
Patent
active
048393320
ABSTRACT:
A heat-sensitive recording material is disclosed. The material is comprised of a support having thereon a heat-sensitive color forming layer comprising at least one electron-donating colorless dye and at least one electron-accepting compound, wherein the electron-donating colorless dye is a fluorene derivative having at least one substituted amino group and the electron-accepting compound has an acid group and a solubility in ethanol of 10 or less at 25.degree. C.
The material exhibits improved color developability, improved preservability before recording, improved image stability, and improved chemical resistance.
REFERENCES:
patent: 3928686 (1975-12-01), Poot et al.
patent: 4211436 (1980-07-01), Kuhlthau
Ikeda Kensuke
Iwakura Ken
Yanagihara Naoto
Fuji Photo Film Co. , Ltd.
Hess Bruce H.
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