Silver halide photographic light-sensitive material that has been improved over time with less fog, etc.

摘要

PURPOSE:To lessen the increase of the fogging at the time of secular preservation, and to improve the sensitivity and the irregular sensitivity caused by a low illumination and the graininess of the titled material by providing with at least one layer of photosensitive layers contg. a silver halide emulsion which has =8.5pAg, and is chemically aged in the presence of a sensitizing dye, in the titled material. CONSTITUTION:The titled material comprises at least one layer of the photosensitive layers contg. the silver halide emulsion which has =8.5pAg and is chemically aged in the presence of the sensitizing dye. At the time of chemically aging the silver halide emulsion in the presence of the chemical sensitizing agent and sensitizing dye, pAg is preferably =8.5 for at least one-third chemical aging time, especially, preferably =8.5 for at least two-third chemical aging time in the first half of the chemical aging time. The additional amount of the sensitizing dye depends on the particle sized of the used silver halide emulsion and the crystal habit thereof, however, preferably 20-750mg per 1mol. of silver halide. Thus, the titled material having the less increase of fogging at the time of secular preservation, and the improved shelf life and the good graininess is obtd., and the irregular sensitivity caused by the low illumination is improved.