Azo dyes from unsubstituted or substituted 3-amino-pyridine and

Details Azo dyes from unsubstituted or substituted 3-amino-pyridine and Azo dyes from unsubstituted or substituted 3-amino-pyridine and

1983-11-25

1985-12-31

Higel, Floyd D.

Organic compounds -- part of the class 532-570 series

Organic compounds

Azo

534752, 534766, 534770, 534887, 534768, C09B 29036, C09B 2936, C09B 2942, C09B 2946

Patent

active

045622485

ABSTRACT:
Azo dyes having the general formula ##STR1## in which each of X, Y and Z are independently selected from H and a variety of substituents, preferably provided that at least one of X and Y is a substituent selected, for example, from --CN, halogen, alkyl, and alkylsulfonyl, and C is the residue of a phenol, naphthol, indole, imidazothiazole, pyrazolone, thiazole, isothiazole or pyrazole type disperse dye coupling component. These dyes which are unexpectedly non-phototropic produce yellow to orange shades on hydrophobic fibers and exhibit improvements in one or more properties such as dyeability, dye exhaustion rate, light fastness, nonblooming, pH stability, build, fastness to ozone and nitrogen oxide, crock and wash fastness, migration, transfer, and pH stability on polyester, polyamide and other fibers including cellulose ester.

REFERENCES:
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patent: 2864813 (1958-12-01), Bossard et al.
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patent: 4025301 (1977-05-01), Lang
patent: 4301068 (1981-11-01), Giles et al.
patent: 4302390 (1981-11-01), Giles et al.
patent: 4358404 (1982-11-01), Chapman et al.
Ginsberg et al., Index Chemicus, vol. 23, 69675 (1966).
Guser et al., Index Chemicus, vol. 27, 86189 (1967).

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