PURPOSE: To improve a photosensitivity and a contrast and to prevent a color stain apt to generate in developing by using an anti-foggant or a compd. releasing its precursor in an amount proportional to that of a developing silver in developing.
CONSTITUTION: The material provides at least one of silver halide emulsion layers on a base material and contains a color stain inhibitor represented by the formula and the anti-foggant or the compd. releasing its precursor in the amount proportional to that of the developing silver in developing. In the formula, R1 and R2 are each a hydrogen atom, a halogen atom and a carboxyl group or a sulfone group capable of a forming a salt; R1 together with R2 may be composed of a carbon right. One of X1WX4 groups is a hydroxyl group, remainder two groups are each hydroxyl group or a sulfonamide group. further remainder one group is an atom or a group of R1 or R2. Total carbon numbers of R1, R2, and X1WX4 amount to ≥10. Therefore, the effects of improving the photosensitivity, the contrast and preventing the color stain are obtd.
OBAYASHI KEIJI
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