Silver halide photographic material

Claim 1

A silver halide photographic material in which a photographic layer composed of at least one silver halide emulsion layer is provided on a substrate prepared by coating a base web principally composed of natural pulp with a film-forming resin, wherein the silver halide photographic emulsion layer is one which has been produced by incorporating at least one of the water soluble rhodium compounds or water soluble iridium compounds at the time of formation and dispersion or at the time of physical aging of the silver halide or the silver halide photographic emulsion layer contains a water soluble gold compound; the natural pulp or a mixture of two or more different types of natural pulp used for the base web of said substrate is one which has been produced by performing an additional bleaching treatment with a peroxide or a boron hydride compound in an alkaline state after the conventional pump bleaching treatment and has a PC number of 2.0 or less, said PC number being defined by the following formula: ##EQU3## wherein Ro=brightness (%)×(1)/(100) before the fading treatment, R=brightness (%)×1/100 after 18-hour fading treatment at 85° C. and 95% RH, and P is the post color (PC) number which indicates the degree (nondimensional number) of fading.