Radiation imagery chemistry: process – composition – or product th – Thermographic process – Heat applied after imaging
Patent
1977-12-08
1980-09-02
Brown, J. Travis
Radiation imagery chemistry: process, composition, or product th
Thermographic process
Heat applied after imaging
430619, 430620, G03C 530, G03C 102
Patent
active
042207096
ABSTRACT:
A heat developable photographic material comprising in reactive association (a) photosensitive silver halide, (b) an image-forming combination comprising (i) a complex of silver with a nitrogen acid selected from the group consisting of imidazole, pyrazole, urazole, 1,2,4-triazole and 1H-tetrazole nitrogen acids or combinations thereof, with (ii) an organic reducing agent, and (c) a polymeric binder, provide developed images without the need for processing solutions or baths. An image can be developed in this heat developable material by merely heating the material to moderately elevated temperatures. Other addenda employed in heat developable materials can be employed with the heat developable photographic materials described.
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Stabilization of Photographic AgX Emulsions, Birr Focal Press, N.Y., N.Y. .COPYRGT. 1974 pp. 204-207.
Brown J. Travis
Eastman Kodak Company
Knapp Richard E.
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