Process for spectral sensitization of a silver halide emulsion

Details Process for spectral sensitization of a silver halide emulsion Process for spectral sensitization of a silver halide emulsion

1989-12-27

1991-12-31

Schilling, Richard L.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Silver compound sensitizer containing

430567, 430570, G03C 112

Patent

active

050771906

ABSTRACT:
Silver halide emulsions can be spectrally sensitized by adding a silver salt solution to them until the pAg value reaches a point close to equivalence, then adjusting the pAg value to a value between 7.5 and 10 by addition of halide or thiocyanate, adsorbing a part quantity of a sensitizing dye on the silver halide crystals of the emulsions, and repeating these steps once to seven times, and adding the residual quantity of sensitizing dye in the last repeat.

REFERENCES:
patent: 3917485 (1975-11-01), Morgan
patent: 4183756 (1980-01-01), Locker
patent: 4225555 (1980-09-01), Locker et al.
patent: 4335199 (1982-06-01), Michewich et al.

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