Pre-precipitation spectral sensitizing dye addition process

Details Pre-precipitation spectral sensitizing dye addition process Pre-precipitation spectral sensitizing dye addition process

G - Physics

03

C

96/117

G03C 1/10 (2006.01) G03C 1/015 (2006.01) G03C 1/12 (2006.01)

Patent

CA 1106674

-0- PRE-PRECIPITATION SPECTRAL SENSITIZING DYE ADDITION PROCESS Abstract of the Disclosure A method of preparing a spectrally sensitized radiation-sensitive silver halide emulsion is disclosed in which a methine spectral sensitizing dye is added to a reaction vessel prior to the concurrent introduction of aqueous halide and silver salt solutions. The silver halide grains concurrently formed and spectrally sensi- tized in this manner exhibit relatively high minus blue speeds.

313210

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