Abstract:
Fiber reactive dyestuffs for use on cellulose containing textile materials having the formula
WHEREIN F is the radical of an organic dyestuff, A is a five- or six-membered isocyclic or heterocyclic ring, X is hydrogen or an organic substituent, Y is hydrogen, halogen or an organic radical, ''''halogen'''' is a halogen atom, m a whole number and n a whole number from 1 to 3.
D DENOTES AND AROMATIC-CARBOCYCLIC OR AROMATIC-HETEROCYCLIC RADICAL; R1 AND R2 REPRESENT IDENTICAL OR DIFFERENT ALKYL RADICALS WHICH MAY BE SUBSTITUTED; X STANDS FOR HALOGEN FOR AN ALKOXY GROUP WHICH MAY BE FURTHER SUBSTITUTED, OR FOR
-N(-R3)-R4
WHERE R3 AND R4 ARE H OR IDENTICAL OR DIFFERENT ALKYL RADICALS WHICH MAY BE SUBSTITUTED; AND Y DENOTES AN OPTIONALLY SUBSTITUTED ALKOXY GROUP OR THE RADICAL
-N(-R3)-R4
SUITABLE FOR DYEING AND PRINTING SYNTHETIC FIBERS WHEREIN THE DYEINGS ARE CHARACTERIZED BY VERY GOOD FASTNESS TO LIGHT AND WET PROCESSING.
Abstract:
The invention comprises reactive dyes of formula wherein F is an organic dye radical, Q is an -SO2-NR1-, -NR1-SO2-, -CO-NR1- or -NR1-CO- bridge member, R1 being hydrogen or C1-C5 alkyl, A is a six-membered carbocyclic ring, X is a hydrogen or chlorine atom or a methyl group, Y1 is a chlorine atom or an alkylsulphonyl or arylsulphonyl radical, Z is -O-, -S- or =N-CH3, m is 1 or 2 and n is 1, 2 or 3. The dyes may be prepared by condensing a dye or a diazo or coupling component containing an amino or amide group with a compound of formula wherein W is a carboxylic or sulphonic acid halide group and if an azo dye component is used forming the dye by the usual coupling reaction. Conversely dyestuff acid halides may be condensed with compounds of the above formula wherein W is an amino group. The dyes may be used to colour amide or hydroxyl group-containing fibres by the usual reactive dye processes. The preparation of monoazo, metallized azo, phthalocyanine and anthraquinone dyes is described in examples.