Patent ID: 6682880
Filing Date: 2004-01-27
Classification: G03C

Abstract:
A method for preparing a kit part of a bleach-fixing solution for use in silver halide color photographic materials comprising the steps of:(a) adding a [S,S]-alkylenediamine-N,Nâ€²-disuccinic acid or its salt into a mixing tank to form a solution, and then (b) adding thereto at least one iron (III) salt selected from the group consisting of iron (III) nitrate, iron (III) chloride, iron (III) bromide, (M1)3Fe(III)(SO4)3 and M1Fe(III)(SO4)2, in which M1 represents a hydrogen, sodium or potassium or an ammonium, while stirring at a temperature of 35 to 80Â°C., wherein in the step (b), stirring is performed by propeller stirring or circulation stirring, wherein the propeller stirring is performed using a rotary blade having a turning radius of not less than Â¼ of the radius of the mixing tank at a stirring rate of 50 to 120 r.p.m., and the circulation stirring being performed at a circulation rate 2.0 to 5.5 cycles/min.