Stabilized bleaching compositions and method of processing color

Details Stabilized bleaching compositions and method of processing color Stabilized bleaching compositions and method of processing color

1999-06-28

2000-06-20

Le, Hoa Van

Radiation imagery chemistry: process, composition, or product th

Nonradiation sensitive image processing compositions or...

Bleach or intensification

430393, 430430, G03C 742

Patent

active

060776501

ABSTRACT:
Color photographic elements can be effectively processed to provide color images using biodegradable bleaching compositions in which the bleaching agent includes a pyridinecarboxylic acid or 2,6-pyridinedicarboxylic acid chelating ligand. The bleaching composition is stabilized by incorporation of an organic amine base instead of the conventional inorganic base.

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JP-55067747--Abstract.
JP-51007930--Abstract.
JP-53048527--Abstract.
JP-50026542--Abstract.

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