Photographic bleach composition

Radiation imagery chemistry: process – composition – or product th – Color imaging process – Using identified radiation sensitive composition in the...

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430430, 430461, 430491, 430490, 430936, 430943, G03C 700, G03C 544, G03C 518, G03C 526

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active

056838581

ABSTRACT:
A photographic bleach solution contains hydrogen peroxide, or a compound capable of releasing hydrogen peroxide, and two or more sequestering agents capable of complexing with a transition metal. The bleach solution ha a pH in the alkaline range. A method of using such a photographic bleach solution is also disclosed.

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patent: 5270148 (1993-12-01), Morigaki et al.
Patent Abstracts of Japan, vol. 12, No. 25, P-659, Processing Method for Silver Halide Color Photosensitive Material, 62-178263.

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