Process for preparing a silver halide emulsion

Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Identified radiation sensitive composition with color...

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Details

430581, 430636, 430638, 430935, G03C 112, G03C 138

Patent

active

051513463

ABSTRACT:
A process for preparing a silver halide emulsion is disclosed, which comprises dissolving one or more substantially water-insoluble photographic additives in a solution of an organic solvent containing a surface active agent having a hydrophilic -SO.sub.3 or --OSO.sub.3 group wherein said organic solvent is an alcohol, and then adding the resulting solution to a silver halide emulsion. A small amount of a base, or small amounts of a base and an acid may optionally be present in the mixed solution of the organic solvent and the surface active agent prior to adding the one or more substantially water-insoluble photographic additives.

REFERENCES:
patent: 3822135 (1974-07-01), Sakai et al.
patent: 3837863 (1974-09-01), Sakazume et al.

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