Patent ID: 6534258
Filing Date: 2003-03-18
Classification: G03C

Abstract:
A method for producing grains of aliphatic acid silver salt by mixing a solution containing silver ions and a solution of aliphatic acid alkali metal salt in a reaction field to attain reaction of them, wherein:95-100% of the total molar number to be added of the aliphatic acid alkali metal salt is added under a condition that dilution factor of the solution of aliphatic acid alkali metal salt becomes 10-fold or higher at 1 second after addition of the solution of aliphatic acid alkali metal salt to the reaction field, 95-100% of the total amount to be added of silver in the solution containing silver ions is added under a condition that dilution factor of the solution containing silver ions becomes 20-fold or higher at 1 second after addition of the solution containing silver ions to the reaction field, and 50-100% of the total amount to be added of the solution of aliphatic acid alkali metal salt is added simultaneously with the solution containing silver ions.