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US 5,635,342 AGranted
Method for manufacturing solid processing composition for silver halide photographic light-sensitive materials
AssigneeKonica Corporation
InventorTakashi Deguchi
Life of this patent
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Abstract
A method for manufacturing a granular solid processing composition for a silver halide photographic light-sensitive material is disclosed, which comprises the steps of: granulating a composition comprising at least one photographic processing agent with stirring in the presence of a liquid to obtain granules; and dressing the granules.
Claims3
A method of manufacture of a tablet solid processing composition for a silver halide photographic light-sensitive material, said method comprising
- granulating a granulatable composition comprising at least one photographic processing agent with stirring in the presence of a liquid to obtain granules having an average particle diameter of 150 to 3000 .mu.m, said liquid not exceeding 10 weight % based on the weight of said granulatable composition after said granulating;
- dressing said granules during and after drying with a dressing machine having a 0.5 to 3.0 mm screen so that at least 70 weight % of said granules after dressing have a particle diameter of 149 to 2,000 .mu.m;
- and
- compression molding the dressed granules into a tablet under a compression pressure of 400 to 2000 kg/cm.sup.2.
1 more element
Dependencies are inferred from the claim text.