PROCEDE D'OBTENTION DE GRAINS TABULAIRES MONODISPERSES.

摘要

A method for preparing a photographic emulsion incorporating tabular silver halide grains is described. It is characterized in that twinned silver halide nuclei are precipitated either in an external static nucleator operating under laminar conditions with a Reynolds number of less than 2100, or in a recipient with a very low agitation speed compared with that normally used, and characterized also in that the concentration of the Ag<+> ion solution is between 0.04 and 0.3 M. Tabular silver halide grains are obtained with a diameter distribution lower than 15 %.