Silver halide light sensitive color photographic material

Abstract

There is disclosed a silver halide light-sensitive color photographic material having a high sensitivity and excellent granularity. The photographic material contains in at least one of the emulsion layers the core/shell type tabular silver halide grains comprising: a. a numerical ratio of monodispersed grains to all grains of 70% or more; b. an average aspect value of not less than 1 and less than 5; and c. a portion having a silver iodide content of 15.3 mol % or more in the core.

What is claimed is: 
     
       1. A silver halide light-sensitive color photographic material comprising a support and provided thereon at least one silver halide emulsion layer, wherein at least one of the emulsion layers contains core/shell type tabular silver halide grains having hexagonal major faces wherein the ration of a major length to a minor length of the hexagonal major faces is 2 or less, comprising: a. a numerical ratio of monodispersed grains to all grains of 70% or more;   b. an average aspect ratio greater than 1 and less than 5; and   c. a portion having a silver iodide content of 15.3 mol % or more in the core.   
     
     
       2. The photographic material of claim 1, wherein the numerical ratio of the monodispersed grains is 75% or more. 
     
     
       3. The photographic material of claim 2, wherein the numerical ratio is 80% or more. 
     
     
       4. The photographic material of claim 1, wherein the average aspect ratio is greater than 1 and less than 4. 
     
     
       5. The photographic material of claim 4, wherein the average aspect ratio is greater than 1 and less than 3. 
     
     
       6. The photographic material of claim 1, wherein the silver iodide content in said portion is 18 to 45 mol %. 
     
     
       7. The photographic material of claim 6, wherein the silver iodide content is 20 to 45 mol %. 
     
     
       8. The photographic material of claim 7, wherein the silver iodide content is 25 to 45 mol %. 
     
     
       9. The photographic material of claim 1, wherein the ratio is 1.8 or less. 
     
     
       10. The photographic material of claim 9, wherein the ratio is 1.5 or less. 
     
     
       11. The photographic material of claim 1, wherein the numerical ratio of the hexagonal tabular grains to all grains is 50% or more. 
     
     
       12. The photographic material of claim 1, wherein the tabular silver halide grains have a monodispersion degree of less than 20%, provided that the monodispersion degree of 20% is defined by that the sizes of 60% by weight or more of the grains fall within the range of 80 to 120% of an average grain size. 
     
     
       13. The photographic material of claim 12, wherein the monodispersion degree is less than 18%. 
     
     
       14. The photographic material of claim 13, wherein the monodispersion degree is less than 15%. 
     
     
       15. The photographic material of claim 1, wherein the tabular silver halide grains have an average grain diameter of 0.1 to 5.0 μm, provided that the the diameter of the tabular grain is defined by the diameter of a circle having the same area as that of a projected major face of the tabular grain. 
     
     
       16. The photographic material of claim 15, wherein the average grain diameter is 0.2 to 4.0 μm. 
     
     
       17. The photographic material of claim 16, wherein the average grain diameter is 0.3 to 3.0 μm.