Dye mordanting development

Details Dye mordanting development Dye mordanting development

1981-10-01

1983-05-10

Downey, Mary F.

Radiation imagery chemistry: process, composition, or product th

Silver halide colloid tanning process, composition, or product

430213, 430371, 430435, 430441, 430442, 430484, 430485, G03C 530

Patent

active

043830234

ABSTRACT:
A gelatino-silver halide film is exposed and then developed with a tanning developer bearing a positively or negatively charged substituent, e.g., a quaternary amine-substituted hydroquinone, to produce a charged matrix in the gelatin. To enhance the image the film is then processed to mordant an oppositely charged species, e.g., an anionic dye, to the charged matrix.

REFERENCES:
patent: 2529922 (1950-11-01), Dean
patent: 3019108 (1962-01-01), Dershowitz
patent: 3590692 (1971-07-01), Bloom
patent: 3729314 (1973-04-01), Haas
patent: 3887563 (1975-06-01), Bloom
patent: 4294915 (1981-10-01), Idelson
Rul et al., Journal of Photo Science, vol. 15, 1967 Jul., Aug., pp. 174-180.

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