| 摘要 |
PURPOSE:To quickly and stably form an image having the high max. image density and the low min. image density by developing a silver halide photosensitive material in the presence of a specified nucleus forming accelerator. CONSTITUTION:The inner latent image type silver halide photosensitive material which is not previously fogged, is imagewise exposed and then, is carried out photofogging processing before or during developing, followed by developing said obtd. material with a surface developer. Said development is carried out in the presence of the nucleus forming accelerator shown by formula I wherein R' is hydrogen or halogen atom, etc., R'' is hydrogen atom or -(Y')m-R-Z group, M is hydrogen atom or an alkaline metal, etc., Y' is a group shown by formula II or III (wherein R1-R4 are each hydrogen atom or alkyl group, etc.,), R is alkylene or alkenylene group, etc., Z is hydrogen or halogen atom, etc., (m) is 0 or 1. The nucleus forming accelerator is incorporated in the photosensitive material or a processing solution, but, is preferably incorporated in a silver halide emulsion layer or its adjacent layer. |
