Processing method and bleaching solution for silver halide...

Details Processing method and bleaching solution for silver halide... Processing method and bleaching solution for silver halide...

G - Physics

03

C

96/71

G03C 7/42 (2006.01)

Patent

CA 1336480

A processing method for silver halide color photographic material and a bleaching solution used in the processing are disclosed. Sufficient desilvering in a short time and prevention of bleaching fogging can be obtained by the process. The process is applicable for silver-rich high- sensitivity color light-sensitive material. The bleaching solution comprises a of a ferric complex salts of compounds represented by the following Formula A or B in an amount of at least 0.01 mol per liter of the bleaching solution and a buffer agent capable of adjusting pH value to 3 to 7; and pH value of the bleaching solution is held within the range of from 3 to 7; Formula A Image Formula B Image wherein A, through A, are each -CH2OH, -COOM, or -PO3M,M2; M, M, and M3 are each a hydrogen atom, a sodium atom. a potassium atom or an ammonium group; X is a substituted or unsubstituted alkylene group having three to six carbon atoms; B1 and B2 are a substituted or unsubstituted alkylene group having two to five carbon atoms; n is an integer of 1 to 8.

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