Negative type light-sensitive silver halide photographic material

Abstract

Disclosed is a negative type light-sensitive silver halide photographic material comprising at least one light-sensitive silver halide emulsion provided on a support, wherein the ratio of silver amount to gelatin amount (Ag/Gel) (wherein the silver amount is the total silver amount in one or more layers provided in the same side as the light-sensitive silver halide emulsion layer with respect to the support, and the gelatin amount is the total gelatin amount in one or more gelatin layers provided in the same side as the light-sensitive silver halide emulsion layer with respect to the support) is 1.0 or more, and a hydrophilic colloid layer in the light-sensitive silver halide emulsion contains a hydrazine compound.

I claim: 
     
       1. A negative type light-sensitive silver halide photographic material for producing a high contrast image in a developing process wherein the photographic material is in the developer for 19 seconds or less, said negative type light sensitive silver halide photographic material comprising light-sensitive silver halide emulsion provided on a support, wherein the ratio of silver amount to gelatin amount (Ag/Gel) (wherein said silver amount is the total silver amount in one or more layers provided in the same side as said light-sensitive silver halide emulsion layer with respect to the support, and said gelatin amount is the total gelatin amount in one or more gelatin layers provided in the same side as said light-sensitive silver halide emulsion layer with respect to the support) is 1.0 or more, and a hydrophilic colloid layer in said light-sensitive silver halide emulsion contains a hydrazine compound of the Formula (I-b) shown below: ##STR20## wherein R 21  represents an aliphatic group, an aromatic group or a heterocyclic group, R 22  represents hydrogen atom, an alkoxy group, a heterocyclic oxy group, an amino group or an aryloxy group, P 1  and P 2  each represent hydrogen atom, an acyl group or a sulfinic acid group. 
     
     
       2. The negative type light-sensitive photographic material according to claim 1, wherein said hydrazine compound is one of the following compounds: ##STR21## 
     
     
       3. The negative type light-sensitive silver halide photographic material according to claim 1, wherein said hydrazine compound is used in an amount of 10 -5  to 10 -1  mole/1 mole of silver. 
     
     
       4. The negative type light-sensitive silver halide photographic material according to claim 1, wherein the amount of said gelatin coated, when containing no polymer latex other than subbing layer on the surface corresponding to the surface of the light-sensitive material, is 1.8 g/m 2  to 5.5 g/m 2 , and when a polymer latex is contained on that surface, is 1.5 to 6.0 g/m 2 . 
     
     
       5. In a method of developing a negative type light-sensitive silver halide photographic material wherein the negative type light-sensitive silver halide material is subjected to a developing step in a developer, followed by stopping, stabilizing and fixing, the improvement wherein the developing step is for 19 seconds or less and the negative-type light sensitive silver halide material comprises light-sensitive silver halide emulsion provided on a support, wherein the ratio of silver amount to gelatin amount (Ag/Gel) (wherein said silver amount is the total silver amount in one or more layers provided in the same side as said light-sensitive silver halide emulsion layer with respect to the support, and said gelatin amount is the total gelatin amount in one or more gelatin layers provided in the same side as said light-sensitive silver halide emulsion layer with respect to the support) is 1.0 or more, and a hydrophilic colloid layer in said light-sensitive silver halide emulsion contains a hydrazine compound of the formula (I-b) shown below: ##STR22## wherein R 21  represents an aliphatic group, an aromatic group or a heterocyclic group, R 22  represents hydrogen atom, an alkoxy group which may be substituted, a heterocyclic oxy group, an amino group or an aryloxy group, P 1  and P 2  each represent hydrogen atom, an acyl group or a sulfinic acid group. 
     
     
       6. The method of developing a negative type light-sensitive silver halide photographic material according to claim 5, wherein said hydrazine compound is used in an amount of 10 -5  to 10 -1  mole/mole of silver. 
     
     
       7. The method of developing a negative type light-sensitive silver halide photographic material according to claim 5, wherein the amount of said gelatin coated, when containing no polymer latex other than subbing layer on the surface corresponding to the surface of the light-sensitive material, is 1.8 g/m 2  to 5.5 g/m 2  and when a polymer latex is contained on that surface, is 1.5 to 6.0 g/m 2 . 
     
     
       8. The method of claim 5, wherein the developing time is 15 seconds or less. 
     
     
       9. The method of claim 8, wherein the developing time is 10 to 15 seconds.