Azo dyestuffs

Details Azo dyestuffs Azo dyestuffs

1979-10-17

1982-06-29

Sneed, Helen M. S.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C09B 4500

Patent

active

043371957

ABSTRACT:
Azo dyestuffs of the formula ##STR1## wherein A, R.sub.1, m and n have the meaning given in the description. The dyestuffs are suitable for dyeing cellulose-containing materials, especially cotton, which may be natural or regenerated, as well as union fabrics containing cotton, and paper. The dyestuffs in general give red to violet, as well as reddish brown, color shades.
The dyestuffs are distinguished by good light-fastness, substantivity and wet-fastness. Their great suitability for high temperature dyeing processes and for subsequent creaseproof finishing deserves particular mention.

REFERENCES:
patent: 1779298 (1930-10-01), Straub et al.
patent: 2653149 (1953-09-01), Riat
patent: 2749206 (1956-06-01), Wegmann et al.
patent: 3803121 (1974-04-01), Gregory
patent: 4010150 (1977-03-01), Tabei et al.
patent: 4054559 (1977-10-01), Aoki et al.

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