Full color photothermographic imaging system

Details Full color photothermographic imaging system Full color photothermographic imaging system

1990-07-19

1991-12-31

Bowers, Jr., Charles L.

Radiation imagery chemistry: process, composition, or product th

Dye image from radiation sensitive dye or dye former by dry...

Composition or product

430333, 430336, 430338, 430341, 430342, 430343, 430344, G03C 924, G03C 152

Patent

active

050771787

ABSTRACT:
Disclosed are photothermographic constructions containing at least a plurality of light-sensitive layers which are separated by barrier layers composed of a polymer, e.g., ethyl cellulose and polyethylene terephthalate, having an energy activation of permeability (E.sub.p) of less than about 30 kJ/mole. The barrier layers must be substantially insoluble in the light sensitive layers and vice versa. Each light sensitive layer contains a nitrate salt, leuco dye, binder, and optionally, a photoinitiator. The photothermographic construction is capable of effectively reproducing full color images.

REFERENCES:
patent: 4370401 (1983-01-01), Winslow et al.
patent: 4386154 (1983-05-01), Smith et al.
patent: 4452883 (1984-06-01), Frenchik et al.
patent: 4460677 (1984-06-01), Smith et al.
patent: 4460681 (1984-06-01), Frenchik
patent: 4647525 (1987-03-01), Meller

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