摘要:
An object of the present invention is to provide an azo compound capable of improving the dispersibility of an azo pigment in a non-water-soluble solvent. The object of the present invention is achieved with an azo compound wherein a coloring matter moiety having a diketone azo structure and a polymer are bonded to each other.
摘要:
Disazo dyes of formula (I) where one of the two symbols X.sup.1 and X.sup.2 means hydroxy and the other amino and R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7 and R.sup.8 are as defined in the specification. The invention also relates to sulphonamides as their intermediate products and to the use of the dyes for the dyeing of natural and synthetic substrates.
摘要:
Compounds of the formula ##STR1## in which A-X- is the radical of a diazo component,X- is ortho to the azo group and is a metallizable substituent or a substituent convertible to a metallizable group,Y is --OH or --NH.sub.2,Z is methyl or carboxy,R is hydrogen, halo, methyl or sulfo, andB is the radical of a coupling component of the heterocyclic, non-cyclic active methylene or monocyclic benzene series, which coupling component of the monocyclic benzene series contains an amino and/or hydroxy group, which group(s) may be alkylated or acylated, and --N.dbd.N--B is bound to the 3- or 4-position of ring D, which comounds contain at least one water-solubilizing group, and metal complexes thereof, with the proviso that when the compounds are unmetallized, B is other than a monocyclic benzene coupling component radical. The metal complexes are useful as dyes for the dyeing and printing of anionic dyeable substrates such as natural and regenerated cellulose, natural and synthetic polyamides, polypropylene modified to contain basic groups, polyurethanes, anodized aluminum, sized paper and leather.
摘要:
Compounds of the formula ##STR1## in which R.sub.1 signifies a group of the formula --NH.sub.2, --NH--R.sub.4 or --O--R.sub.4, in which R.sub.4 signifies a (C.sub.1-8)alkyl radical, a (C.sub.5-8)cycloalkyl radical or an unsubstituted or substituted phenyl, naphthyl or heterocyclic radical,Each of R.sub.2 and R.sub.3, which may be the same or different, signifies a hydrogen atom, a hydroxyl, (C.sub.1-8)alkoxy, amino, (C.sub.5-8)cycloalkylamino, (C.sub.1-8)alkylamino, (C.sub.1:8)dialkylamino, phenyl- or naphthylamino or N-phenyl-N-(C.sub.1-8)alkylamino group,A signifies a nitrogen atom or a group of the formula ##STR2## in which R.sub.6 signifies a hydrogen or halogen atom or a (C.sub.1-8)alkyl radical,Either n is 1 and D signifies the radical of a diazo component,Or n is 2 and D signifies the radical of a tetrazo component,Are useful as coloring materials, especially as pigments for plastics, synthetic resins, varnishes, viscose, cellulose acetate, printing inks and paper stock. The dyeings exhibit good fastness to heat, light, weather and solvents and resistance to migration, crystallization and chemicals such as sulfur dioxide and alkalis. The compounds wherein R.sub.2 and R.sub.3 are other than hydroxy are also useful as disperse dyes for high molecular weight hydrophobic substrates such as polyesters, cellulose acetates and synthetic polyamides. These dyeings exhibit good fastness to light, sublimation, washing, solvents, rubbing, gas fumes, reduction and chlorine.
摘要:
Disazo dyes of the formula ##STR1## where the ring A may be benzofused, X is hydrogen or C.sub.1 -C.sub.4 -alkyl, R.sup.1 is hydrogen, C.sub.1 -C.sub.4 -alkyl, halogen, carboxyl, C.sub.1 -C.sub.4 -alkoxycarbonyl or hydroxysulfonyl, R.sup.2 is hydrogen, C.sub.1 -C.sub.4 -alkyl, halogen, carboxyl or C.sub.1 -C.sub.4 -alkoxycarbonyl, or R.sup.1 and R.sup.2 together are a radical of the formula L--NZ--CO, where L is methylene or carbonyl and Z is substituted or unsubstituted C.sub.1 -C.sub.4 -alkyl or substituted or unsubstituted phenyl, and R.sup.3 is hydrogen, C.sub.1 -C.sub.4 -alkyl, hydroxyl, C.sub.1 -C.sub.4 -alkoxy, phenoxy, C.sub.1 -C.sub.4 -alkanoyloxy or benzoyloxy, are useful for dyeing natural or synthetic substrates.
摘要:
The invention relates to aminoazo compounds of the formula I ##STR1## in which X and Y are identical or different and denote hydrogen, chlorine, bromine, methyl, methoxy, ethoxy, nitro, trifluoromethyl, carbomethoxy or carboethoxy, A represents hydrogen, methyl or ethyl, and Z in the 6- or 7-position of the heteroaromatic ring system is hydrogen, chlorine or bromine, methyl, methoxy, ethoxy, carbomethoxy, carboethoxy or nitro.The compounds of the formula I are prepared by coupling a monodiazotized p-diaminobenzene substituted by X and Y analogously to the formula I with a 5-acetoacetylaminobenzimidazolone which carries the radicals A and Z analogously to the formula I. In the case where X, Y or Z does not denote a nitro group, it is possible to use in place of the p-diaminobenzene derivative a p-aminonitrobenzene derivative which is disubstituted by X and Y in the 2- and 5-positions. In this case, the product after diazotization and coupling is initially a nitro compound which can be converted by reduction into the aminoazo compound of the formula I.The aminoazo compounds are used as starting materials for preparing disazo compounds, preferably disazo pigments, through diazotization in conventional manner and coupling onto compounds which are capable of coupling, for example onto 5-acetoacetylaminobenzimidazolones. The disazo pigments are distinguished by high tinctorial strength, excellent fastness to solvents and migration, and high thermostability.
摘要:
Dyes of the formula ##STR1## wherein D is a carbocyclic aryl or heterocyclic aryl diazo component radical,q is 0 to 3, andt is 0, 1 or 2,With the proviso that q + t is 1 to 5, are highlyThe dyeing, padding and printing of textile fibers and textiles of natural or regenerated cellulose and paper. The dyes build-up well, exhibit good fastness to wet treatments, alcohol, light, rubbing and dry cleaning and are resistant to acids and alkalis.
摘要:
The invention relates to azo dyes of formula ##STR1## wherein R.sub.1 is hydrogen or C.sub.1 -C.sub.4 alkyl, R.sub.2 is C.sub.2 -C.sub.4 alkyl, R.sub.3 is hydrogen, C.sub.1 -C.sub.4 alkyl or unsubstituted or substituted C.sub.5 -C.sub.7 cycloalkyl or phenyl, and the benzene rings I and II are unsubstituted or substituted.The azo dyes are suitable for dyeing or printing synthetic polyamide materials, especially in conjunction with other dyes and, preferably, from short liquors. The azo dyes have good allround properties, in particular good affinity.
摘要:
Bleed-fast, dyed cellulosics particularly absorbent papers have been obtained with a particular class of water-soluble, cationic dyes reacted with a water-soluble dialdehyde, preferably glyoxal or glutaraldehyde. An aqueous printing fluid containing the water-soluble cationic dye and the dialdehyde, upon drying, produces a water-resistant dyestuff having improved bleed fastness upon cellulosic fibers.