2,7-diphenylazo-1-amino-8-hydroxynaphthalene disazo dyes contain

Details 2,7-diphenylazo-1-amino-8-hydroxynaphthalene disazo dyes contain 2,7-diphenylazo-1-amino-8-hydroxynaphthalene disazo dyes contain

1989-12-20

1991-02-05

Higel, Floyd D.

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

Organic compounds

Azo

534617, 534632, 534637, 534643, C09B 6201, D06P 138, D06P 310

Patent

active

049905996

ABSTRACT:
The invention relates to a process for dyeing or printing natural or synthetic polyamide fibre materials which comprises dyeing or printing these fibre materials with reactive dyes of the formula ##STR1## where each M is a cation, R.sub.1 and R.sub.2 are independently of each other hydrogen or C.sub.1 -C.sub.4 alkyl, and X.sub.1 and X.sub.2 are independently of each other .alpha.,.beta.-dibromopropionyl, .alpha.-bromoacryloyl, chloroacetyl or a mono-, di- or trihalopyrimidinyl radical.

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patent: 3910758 (1975-10-01), Bien et al.
patent: 3923778 (1975-12-01), de Montmollin et al.
patent: 4425270 (1984-01-01), Yamada et al.
patent: 4560388 (1985-12-01), Rohrer
patent: 4638054 (1987-01-01), Herd et al.
patent: 4647286 (1987-03-01), Seitz

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