Patent ID: 6613504
Filing Date: 2003-09-02
Classification: G03C

Abstract:
A producing method of a fatty acid silver salt which comprises adding (1) a solution of silver ions comprising water or a mixed solution of an organic solvent and water containing therein silver ions, and (2) a solution of a fatty acid alkali metal salt which is a solution or a suspension comprising water, an organic solvent, or a mixed solution of water and an organic solvent, containing therein an alkali metal salt of a fatty acid to a closed mixing means to react the solution (1) and the solution (2), wherein from 50 to 99.5 mol % of the entire fatty acid alkali metal salt solution is added to the closed mixing means under such a condition that the concentration of the fatty acid alkali metal salt is higher than the silver ion concentration, and from 0.5 to 30 mol % of the entire fatty acid alkali metal salt solution is added to the closed mixing means or to the downstream of the closed mixing means after the silver ion solution has been added to the closed mixing means.