| 摘要 |
PCT No. PCT/FR92/00417 Sec. 371 Date Nov. 12, 1993 Sec. 102(e) Date Nov. 12, 1993 PCT Filed May 11, 1992 PCT Pub. No. WO92/21061 PCT Pub. Date Nov. 26, 1992.The present invention relates to a method for preparing a photographic tabular silver halide grains emulsion. The method is characterized in that the twinned silver halide seeds are precipitated, either in an external static nucleator working in laminar flow regime with a Reynolds number less than 2100, or in a kettle with a very low stirring rate with respect to the one generally used, and in that the concentration of the Ag+ ion solution is ranging from 0.04 to 0.3M. Obtained are tabular silver halide grains, the diameter distribution of which is less than 15%.
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