Formazan blue reactive dye

Details Formazan blue reactive dye Formazan blue reactive dye

1986-01-28

1988-01-19

Higel, Floyd D.

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

Organic compounds

Azo

534598, 534652, C09B 5000, C09B 62095, C09B 62535, D06P 138

Patent

active

047205423

ABSTRACT:
A formazan reactive blue dye represented by a free acid of the formula, ##STR1## wherein X.sub.1 and X.sub.2 are each a hydrogen atom, a methyl, methoxy or sulfonic acid group, m and l are each an integer of 0 or 1 and n is an integer of 0 to 2, provided that the sum of m, n and l is 2 or 3. This dye is usable for dyeing cellulose fibers in a brilliant blue color with good fastness, particularly, against chlorine, light and perspiration-light, as well as good white dischargeability.

REFERENCES:
patent: 2670265 (1954-02-01), Heyna et al.
patent: 3068219 (1962-12-01), Beffa et al.
patent: 3223470 (1965-12-01), Boedeker et al.
patent: 3655642 (1972-04-01), Meininger et al.
patent: 3926942 (1975-12-01), Yelland
patent: 3998805 (1976-12-01), Koller et al.
patent: 4024123 (1919-07-01), Dussy et al.

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