Red dyestuffs

Details Red dyestuffs Red dyestuffs

1997-05-27

1998-04-28

Powers, Fiona T.

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

Organic compounds

Azo

534829, C09B 3108

Patent

active

057445915

ABSTRACT:
A dyestuff of the general formula (1), ##STR1## wherein R.sub.1 is H or C.sub.1 -C.sub.4 alkyl; R.sub.2 is a phenyl or naphthyl group, which is unsubstituted or substituted by --Cl, --Br, --I, --CH.sub.3, --C.sub.2 H.sub.5, --C.sub.3 H.sub.7, --C.sub.4 H.sub.9, --OH, --OCH.sub.3, --OC.sub.2 H.sub.5, --NO.sub.2, --NHCOCH.sub.3 or --COOH. The dyestuff of the present invention is suitable for dyeing and printing of materials containing hydroxyl group or amide group, in particular animal fibrous material, synthetic polyamide and polyurethane fibers.

REFERENCES:
patent: 931423 (1909-08-01), Hesse et al.
patent: 1602776 (1926-10-01), Neelmeier et al.
patent: 4082742 (1978-04-01), Eastlack
Colour Index, 3rd Edition, vol. 4, 1971, Society of Dyers and Colourists, C.I. 28160, C.I. 28410.

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