Patent ID: 6040127
Filing Date: 2000-03-21
Classification: G03C

Abstract:
A method for producing a silver halide emulsion in which grains having an aspect ratio of from 1.5 to 100 occupy from 75 to 100% of the total projected area of all grains comprising at least nucleation, ripening and grain growth processes in a dispersion medium solution containing water and a dispersion medium, wherein the dispersion medium solution contains low molecular weight gelatin having a molecular weight of from 1,000 to 70,000 at least during a nucleation process and chemically modified gelatin having a chemical modification rate of an amino group of from 15% to 100% at least during a grain growth process, wherein silver halide grains have 10 or more dislocation lines per one grain in proportion of 50% or more of the number of all the grains in said emulsion.