Method for preparing a silver halide photographic emulsion
AssigneeEastman Kodak Company
InventorsJean Guilment, Olivier J. Poncelet
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Abstract
The present invention relates to a method for preparing a silver halide photographic emulsion, comprising the steps of a) providing a nucleation medium comprising an aqueous composition based on a hydrophilic colloid and a non-ionic antifoaming agent; b) precipitating silver halide nuclei in said nucleation medium; c) growing said silver halide nuclei to form a silver halide photographic emulsion; and d) removing the non-ionic antifoaming agent from the nucleation medium by contacting the silver halide photographic emulsion resulting from step c) with a material that has surface lipophilic functions.
Claims8
A method for preparing a silver halide photographic emulsion comprising the steps of:
- a) providing a nucleation medium comprising an aqueous composition based on a hydrophilic colloid and a non-ionic antifoaming agent;
- b) precipitating silver halide nuclei in said nucleation medium;
- c) growing said silver halide nuclei to form a silver halide photographic emulsion;
- and
- d) removing the non-ionic antifoaming agent from the nucleation medium by contacting the silver halide photographic emulsion resulting from step c) with a material that has surface lipophilic functions.
Dependencies are inferred from the claim text.