METHOD OF PREPARING COUPLER DISPERSIONS

摘要

A method of making fine particle photographic coupler dispersions which comprises forming a dispersion of photographic coupler, coupler solvent and auxiliary coupler solvent in an aqueous gelatin medium containing at least about 1 % by weight of an anionic surfactant having a hydrophobicity of 2-10 log P(OH) and washing the dispersion with water for a time sufficient to remove at least one-fourth of the surfactant.