Method for spectrally sensitizing photographic...

Details Method for spectrally sensitizing photographic... Method for spectrally sensitizing photographic...

G - Physics

03

C

96/47

G03C 1/00 (2006.01) G03C 1/12 (2006.01)

Patent

CA 1039551

ABSTRACT OF THE DISCLOSURE A method for spectrally sensitizing a photographic light- sensitive emulsion, which comprises dissolving a photographic spectrally sensitizing dye having an amidinium ion auxochrome in an organic solvent containing a substantially water-free acid having a pKa not exceeding about 5, and adding this dye- containing acid-organic solvent solution to a light-sensitive emulsion.

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