Materials for silver complex diffusion transfer process

摘要

The negative materials of this invention for silver complex diffusion transfer process provide silver images high in density and improved in stability on image receiving materials. Said negative materials have the following characteristics: (a) The negative materials have silver halide emulsion layer in which the weight ratio of hydrophilic colloid to silver halide in terms of silver nitrate is 2 or less and (b) furthermore, the negative materials have an undercoat layer of hydrophilic colloid on a support and the silver halide emulsion layer of (a) on said undercoat layer, the weight ratio of the hydrophilic colloid of said undercoat layer to that of said silver halide emulsion layer being at least 2.