Silver halide color photographic sensitive material

Abstract

Abstract PURPOSE:To make possible the considerable reduction in the sensitivity change and gradation change of a sensitometric curve with lapse of color developing time by using silver halide particles of a specific normal crystal as silver halide and combining the same with a pyrazoloazole coupler. CONSTITUTION:This material contains the pyrazoloazole coupler and the silver halide particles which are expressed by the formula and consist of the normal crystal having <=5% twin content. The fluctuation coefft. of the particle size of the silver halide particles is made preferably <=25%, more preferably <=20%. The fluctuation coefft. in excess of 25% is undesriable as the sensitivity change and gradation change of the sensimetric curve increase with lapse of the color developing time. The twin content in excess of 5% is undesirable as the sensitivity change and gradation change of the sensimetric curve increase with lapse of the color developing time. The average particle size (d) is more particularly preferably in a 0.3-0.6mum range.

Inventors

• 👤 Yoshinori Shibata
• 👤 柴田　美典

Bibliographic Details