Image stabilizer for silver halide photographic material

Details Image stabilizer for silver halide photographic material Image stabilizer for silver halide photographic material

1984-10-17

1985-12-31

Louie, Won H.

Radiation imagery chemistry: process, composition, or product th

Color imaging process

Stabilizing

430428, 430429, 430463, G03C 538

Patent

active

045621446

ABSTRACT:
An image stabilizer for silver halide photographic materials which contains a water-soluble bismuth compound is disclosed. In a preferred embodiment, the stabilizer also contains a water soluble chelating agent capable of forming a bismuth complex or its salt having a stability constant (log KMA) of 3 or more, said constant being represented by formula (I): ##EQU1## wherein M is a bismuth ion and A is a complex forming anion. By using this stabilizer, the processed dye image is kept stable over an extended period and the occurrence of yellow stain in the non-image area is inhibited. The stabilizer is applicable not only to color photographic materials but also to black-and-white materials.

REFERENCES:
patent: 2788274 (1957-04-01), Ranger
patent: 3666468 (1972-05-01), Amano et al.
patent: 4343886 (1982-08-01), Nakamura et al.
patent: 4423140 (1983-12-01), Herz
Hackh's Chemical Dictionary, McGraw-Hill, 12-1957, pp. 129-131.
Chemical Abstracts, vol. 68, 1968, 90386m.

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