Spectrally sensitized silver halide photothermographic material

Details Spectrally sensitized silver halide photothermographic material Spectrally sensitized silver halide photothermographic material

G - Physics

03

C

96/118, 96/219

G03C 1/498 (2006.01) C09B 23/04 (2006.01) C09B 23/06 (2006.01) G03C 1/12 (2006.01)

Patent

CA 1248396

-0- SPECTRALLY SENSITIZED SILVER HALIDE PHOTOTHERMOGRAPHIC MATERIAL Abstract of the Disclosure Photographic silver halide is spectrally sensitized by means of at least one bleachable spec- tral sensitizing dye comprising a cyanine dye nucleus and a particular N-methylene substituent. The spectrally sensitized photographic silver halide is useful in a photothermographic material. An image in the photothermographic material, after exposure, is developed and the spectral sensitizing dye is bleached, especially at elevated pH, by heat- ing the photothermographic material to processing temperature.

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