Azo dyes for photographic silver dye bleach material

Details Azo dyes for photographic silver dye bleach material Azo dyes for photographic silver dye bleach material

1989-12-08

1991-08-27

Lee, Mary C.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Identified radiation sensitive composition with color...

534591, 534820, 534728, 560 61, 560 62, 562471, 562472, 562853, 8681, G03C 729, C09B 35029, D06P 360

Patent

active

050432575

ABSTRACT:
Azo dyes of the formula ##STR1## where X is alkyl or alkoxy each of 1 to 4 carbon atoms or halogen, X' is hydrogen, alkyl or alkoxy each of 1 to 4 carbon atoms or halogen, Y and Y' are independently of each other hydrogen or halogen, Z is hydrogen, alkyl or alkoxy or alkylthio each of 1 to 4 carbon atoms, or halogen, M is a 1-, 2- or 3-valent metal cation, ammonium or an organic ammonium compound, m is 1, 2 or 3 and n is 2 to 10, are suitable for use as image dyes in photographic silver dye bleach materials.
The dyes of the invention can also be used to dye textile materials.

REFERENCES:
patent: 3506450 (1970-04-01), Nickel et al.
patent: 3749576 (1973-07-01), Piller I
patent: 3787215 (1974-01-01), Piller, II
patent: 4118232 (1978-10-01), Piller et al.

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