Abstract:
Water-soluble monoazo and disazo dyes The present invention relates to dyes of the general formula (I) where X1 is a radical —CH2CH2Z or —CH═CH2, Z being analkali-eliminable group, X2 is alkyl, alkoxy, halogen, COOM or SO3M, X3 is a heterocyclic reactive group of the general formula (IIa) or (IIb) or a reactive group of the formula (IIc), (IId) or (IIe) the stated variables being as defined in claim 1, to processes for preparing them and to their use for dyeing and printing hydroxyl-containing and/or carboxamido-containing material.
Abstract:
Azo dyes comprising at least one structural unit of the formula (1) ##STR1## The azo dyes according to the invention are particularly suitable for dyeing cotton and wool and produce dyeings with good allround properties.
Abstract:
Reactive dyestuffs, a process for their preparation and their use and novel intermediates and a process for their preparation.Reactive dyestuffs of the formula (I) ##STR1## are described, in which A denotes a radical of the formula ##STR2## B denotes a bridging member, and R.sub.1, R.sub.2, R.sub.3, R.sub.4 and X have the meanings given in the description.
Abstract:
Novel compounds of the general formula I ##STR1## where A is a fiber-reactive radical of the triazine, pyrimidine or vinylsulfone series, D is a radical of a sulfo-containing diazo component of the aniline or aminonaphthalene series, K is the radical of a coupling component of the aminohydroxynaphthalene series, X is fluorine, chlorine, bromine, C.sub.1 -C.sub.4 -alkyl, trifluoromethyl, C.sub.1 -C.sub.4 -alkoxy, phenoxy, hydroxysulfonyl, carboxyl, acetyl, propionyl, methylsulfonyl, ethylsulfonyl, phenylsulfonyl, C.sub.1 -C.sub.4 -alkoxycarbonyl, phenoxysulfonyl or unsubstituted or substituted carbamyl or sulfamyl, and Y is fluorine, chlorine, bromine, C.sub.1 -C.sub.4 -alkyl, trifluoromethyl, C.sub.1 -C.sub.4 -alkoxy, phenoxy, phenoxysulfonyl, acetyl, propionyl, methylsulfonyl, ethylsulfonyl, phenylsulfonyl, p-acetylaminophenylsulfonyl, hydroxysulfonyl, C.sub.1 -C.sub.4 -alkoxycarbonyl, hydroxycarbonyl or unsubstituted or substituted carbamyl or sulfamyl, are very useful for dyeing wool and hydroxyl-containing fibers, such as cellulose and in particular cotton.
Abstract:
Water-soluble disazo compounds of the formula (1) ##STR1## and diamino compounds serving as starting compounds (tetrazo components), of the formula (4) ##STR2## in which the formulae moieties occurring twice, namely Z, K and X, in each case have a meaning identical to one another and the groups Z are bonded to the two benzene nuclei in each case in the ortho- or in each case in the para-position relative to the ethylenedioxy substituent, and the azo groups or amino groups and the groups Z in the benzene nuclei are in each case bonded in the meta-position relative to one another and K is the radical of a coupling component containing a sulfato, carboxy or sulfo group, X denotes a hydrogen atom or a fiber-reactive group and Z is a group of the formula --SO.sub.2 --CH.dbd.CH.sub.2 or --SO.sub.2 --CH.sub.2 --CH.sub.2 --Y in which Y denotes a radical which can be eliminated in aqueous medium under alkaline or acidic conditions or the hydroxy group.Disazo compounds of the formula (1) can be used as dyestuffs having fiber-reactive properties for dyeing, for example, cellulose fiber material and wool and be prepared by tetrazotizing diamines of the formula (4) and coupling with coupling components evident from the formula (1).Diamino compounds of the formula (4) are obtained by acetylating a 1,2-di-(o- or p-aminophenoxy)-ethane, chlorosulfonating this bis-acetylamino compound and reducing the sulfonyl chloride groups to sulfinic acid groups, which are then oxyethylated to give .beta.-hydroxyethylsulfonyl groups, which, after deacetylation of acetylamino groups, can be converted in a manner which is in itself known into one of the abovementioned groups Z, for example into the .beta.-sulfatoethylsulfonyl group by means of a sulfating agent.
Abstract:
Azo reactive dyestuffs which in the acid form correspond to the formula ##STR1## wherein R denotes hydrogen or lower alkyl, W denotes a direct bond or a bridge member, Z denotes a reactive group and A denotes the radical of a coupling component, and their use for the dyeing and printing of materials containing hydroxyl groups or amide groups as well as for the wash-fast dyeing and printing of natural or regenerated cellulose.
Abstract:
Disazo dyestuffs of the formula in which D1 and D2 each represents the residue of a diazo component of the benzene or naphthalene series containing at least one and not more than three sulpho groups; X, Y and Y1 each represents hydrogen, trifluoromethyl, lower alkanesulphonyl, lower alkyl, lower alkoxy, phenoxy, chlorine, bromine or lower carboxylic acylamino; R1, R2 and R3 each represents hydrogen, lower alkyl or lower alkyl substituted by cyano, hydroxyl, lower acyloxy or esterified carboxyl; n 1, 2 or 3 and Z'' represents the bridge member of the formula
Abstract:
ARE LINKED THROUGH A DIVALENT BRIDGE MEMBER Z, IN WHICH FORMULAE R1, R2 AND R3 EACH REPRESENTS A HYDROGEN ATOM OR PREFERABLY A LOW-MOLECULAR ALKYL GROUP, WHICH MAY BE LINKED WITH THE RESIDUE A1 OR A2 IN THE ORTHO-POSITION TO THE GROUP -NR1R3 OR -NR2R4 TO FORM A RING; R4 REPRESENTS A LOW-MOLECULAR ALKYLENE GROUP; A1 AND A2 EACH REPRESENTS A BENZENE OR NAPHTHALENE RESIDUE. THE DYESTUFFS ARE SUITABLE FOR DYEING AND PRINTING MATERIALS OF ANIMAL ORIGIN, POLYAMIDE FIBERS, POLYURETHANES AND OTHER SUCH MATERIALS. THE DYESTUFFS EXHIBIT EXCELLENT LIGHT AND WET FASTNESS.
(D2-N=N-A2-N(-R2)-R4)-
(D1-N=N-A1(-N(-R1)(-R3))- (II) OR
DISAZO OR POLYAZO DYESTUFFS, IN WHICH TWO OF THE SAME OR DIFFERENT AZO DYESTUFF RESDUES OF THE GENERAL FORMULA