Formation and photographic use of solid particle dye dispersions

摘要

The present invention provides a method of forming a dispersion of solid particles of a dye in a gelatin medium which comprises milling the solid dye in an aqueous medium and diluting the resulting dispersion with aqueous gelatin wherein the milling is carried out in the presence of a glycerophospholipid dispersant. The invention further provides a photographic element comprising a support having coated thereon at least one silver halide emulsion layer and at least one additional gelatin layer, the additional gelatin layer comprising a dispersion of solid particles of a dye and a glycerophospholipid dispersant.