Fibre-reactive dyes, their preparation and their use
AssigneeHuntsman International LLC
InventorsGeorg Roentgen, Jean-Christophe Graciet, Rainer Hildebrand, Laszlo Fekete, Marie Schmidlin, Hubert Jean-Luc Christnacher
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Abstract
Reactive dyes of formula (1) wherein Q1 and Q2 are each independently of the other hydrogen or unsubstituted or substituted C1-C4alkyl, A is the radical of a monoazo, polyazo, metal complex azo, anthraquinone, phthalocyanine, formazan or dioxazine chromophore, X is halogen, 3- or 4-carboxypyridin-1-yl, or 3- or 4-carbamoylpyridin-1-yl, Y is vinyl or a radical —CH2—CH2—U and U is a group removable under alkaline conditions, and q is the number 1 or 2, are suitable for dyeing and printing cellulosic or amide-group-containing fiber materials.
Claims12
A reactive dye of formula (1)
- wherein
- Q1 and Q2 are each independently of the other hydrogen or unsubstituted or substituted C1-C4 alkyl,
- A is the radical of a monoazo, polyazo, metal complex azo, anthraquinone, phthalocyanine, formazan or dioxazine chromophore,
- X is halogen, 3- or 4-carboxypyridin-1-yl, or 3- or 4-carbamoylpyridin-1-yl,
- Y is vinyl or a radical —CH2—CH2—U and U is —Cl, —Br, —F, —OSO3H, —SSO3H, —OCO—CH3, —OPO3H2, —OCO—C6H5, —OSO2—C1-C4 alkyl or —OSO2—N(C1-C4 alkyl)2, and
- q is the number 1 or 2.
Dependencies are inferred from the claim text.