Radiation imagery chemistry: process – composition – or product th – Color imaging process – Using identified radiation sensitive composition in the...
Patent
1993-08-11
1994-10-04
Schilling, Richard L.
Radiation imagery chemistry: process, composition, or product th
Color imaging process
Using identified radiation sensitive composition in the...
430398, 430430, 430461, 430963, G03C 740, G03C 742
Patent
active
053525680
ABSTRACT:
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; ##STR1## wherein A.sub.1 through A.sub.4 are each --CH.sub.2 OH, --COOM, or --PO.sub.3 M.sub.1 M.sub.2 ; M, M.sub.1 and M.sub.3 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; B.sub.1 and B.sub.2 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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Ishikawa Masao
Koboshi Shigeharu
Kurematsu Masayuki
Kuse Satoru
Bierman Jordan B.
Konica Corporation
Schilling Richard L.
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