摘要:
A dyestuff useful for dyeing and printing synthetic, hydrophobic fibers or mixtures thereof with cellulose fibers and stable under dyeing conditions is a .beta.-modification of a compound of the formula ##STR1## having an X-ray diffraction pattern under Cu-K.alpha.-radiation with high intensity lines at a diffraction angle in .theta. degrees of 3.75, 6.40 and 12.35;medium intensity lines at a diffraction angle in .theta. degrees of 6.60, 7.30, 7.60, 7.90, 8.10, 8.35, 9.30, 9.70, 9.90, 10.20, 10.50, 12.70 and 13.90;and low intensity lines at a diffraction angle in .theta. degrees of 5.65, 8.75, 11.25, 11.70, 13.35, 15.10 and 15.55; which is prepared by heating at 50.degree.-150.degree. C. the .alpha.-modification of said compound, which is unstable under dyeing conditions.
摘要:
A process for the dyeing or printing of a hydrophobic organic fibrous material containing or consisting of polyester, wherein(a) the fibrous material is dyed (.alpha.) from an aqueous dispersion with a dyestuff of the formula (1) indicated below at a pH value between 2 and 9 and at a temperature above 100.degree. C. or at about 100.degree. C. in the presence of a carrier, or (.beta.) by impregnating it with an aqueous dispersion of a dyestuff of the formula (1), said dispersion having a pH value between 2 and 9, and subsequently exposing the fibrous material so treated to a short heat treatment between about 180.degree. and 210.degree. C., or(b) the fibrous material is printed with a dyestuff of the formula (1) by the transfer printing method, the dyestuff used in methods (a) and (b) being of the formula (1) ##STR1## in which X represents alkyl of 1 to 4 carbon atoms, phenyl, lower alkyl-phenyl, lower alkoxy-phenyl, nitro-phenyl, chloro-phenyl or bromo-phenyl, and D represents phenyl, lower alkyl-phenyl, lower alkoxy-phenylene, nitro-phenylene, chloro-phenylene, benzoyl-phenylene, phenyl-phenylene, phenoxy-phenylene, lower alkyl-sulfonyl-phenylene, aminocarbonyl-phenylene, aminosulfonyl-phenyl, ##STR2## chloro-nitro-phenyl, lower alkyl-nitro-phenyl, lower alkoxy-nitro-phenyl, di(cyano)-phenyl, trifluoromethyl-nitro-phenyl or hydroxyalkoxy-nitro-phenyl.
摘要:
Synthetic fibre materials, especially polyester fibres, are dyed in yellowish to orange-red shades with good fastness to light and washing if dyestuffs of the formula ##STR1## wherein K denotes the radical of a coupling component of the indole series,R denotes alkyl, cycloalkyl, aralkyl or aryl and the ring A can contain further non-ionic substituents which are customary in dyestuff chemistry, are used for dyeing.
摘要:
Brown to violet azo dyes of the general formula ##STR1## where X and Y are chlorine or bromine, R.sup.1 is hydrogen, methyl, ethyl, chlorine, methoxy or ethoxy, R.sup.2 is hydrogen, chlorine, bromine, methyl, ethyl, methoxy, ethoxy, C.sub.1-4 alkanoylamino, benzoylamino or alkoxycarbonylamino, where alkoxy is of 1 to 4 carbon atoms, and the radicals R.sup.3 are identical or different, unsubstituted or substituted aliphatic, cycloaliphatic or aromatic radicals. The dyes may be used for dyeing synthetic fibers, especially polyesters, and give very fast dyeings.
摘要:
The invention relates to novel azo dyes of the formula ##STR1## wherein R.sub.1 represents hydrogen, alkyl of 1 to 8 carbon atoms or the phenyl radical, R.sub.2 represents hydrogen, an acyl radical or a fibre-reactive radical, and D represents the radical of any diazo component, which dyes are useful for dyeing and printing a wide variety of natural and synthetic textile materials and leather; thus the acid dyes, which optionally contain fiber-reactive groups, are used for dyeing and printing materials such as cellulose and natural or synthetic polyamide. The cationic dyes are especially used in dyeing and printing polyacrylonitrile, and the disperse dyes are especially used in dyeing and printing polyester materials.
摘要:
New yellow azo pyrazolone compounds having the structure ##STR1## wherein R is halogen and R.sub.1 and R.sub.2 are hydrogen, lower alkyl or halogen. The compounds are useful as yellow dyes in heat transfer printing of synthetic fabrics.
摘要:
Disperse dyestuffs of the formula ##STR1## wherein Z is an alkyl, aralkyl, cycloalkyl, or aryl radical andR.sub.1 represents H, NO.sub.2, CN, CF.sub.3, halogen, alkyl SO.sub.2 X.sub.1, SO.sub.2 NX.sub.2 X.sub.3, SO.sub.2 OX.sub.1, CONX.sub.2 X.sub.3, SCN, OX.sub.1, SX.sub.1 or NX.sub.2 X.sub.3,R.sub.2 represents H, NO.sub.2, halogen, alkyl, OX.sub.1 or aryl,R.sub.3 and R.sub.4 independently of each other represent H, halogen, alkyl, SO.sub.2 X.sub.1, SO.sub.2 NX.sub.2 X.sub.3, SO.sub.2 OX.sub.1, COX.sub.1, CONX.sub.2 X.sub.3, NX.sub.1 X.sub.2, OH, OX.sub.1 or aryl,R.sub.5 represents H, halogen, alkyl, OX.sub.1 or aryl andR.sub.6 represents H or alkyl andX.sub.1 denote alkyl, aryl or aralkyl andX.sub.2 and X.sub.3 denote H, alkyl, cycloalkyl, aryl or aralkyl with the proviso that Z represents aralkyl, aryl or substituted alkyl when R.sub.1 denotes SO.sub.2 NX.sub.2 X.sub.3 or SO.sub.2 OX.sub.1.The dyestuffs are suitable for dyeing synthetic fibre materials, especially polyesters, which are dyed in yellow to orange-red shades of good tinctorial strength and with good fastness properties in use, such as, for example, fastness to light and wet processing.
摘要:
Substituted thienylazo compounds having a cyclohexylaminoacylanilide coupling component are useful as dyes for polyester textile materials on which the compounds exhibit improved dyeability, fastness to light, resistance to sublimation and improved brightness.
摘要:
Azo dyes having a 2,6-diamino-pyridine as coupling component, one of the amino groups bearing a bicyclic or polycyclic non-aromatic radical as a substituent. The dyes are eminently suitable as disperse dyes, particularly for synthetic linear polyesters, and give bright dyeings having excellent fastness properties.
摘要:
Azo compounds of the formula ##STR1## are provided where A is a diazotiable aromatic hydrocarbon. In particular, A is an optionally substituted benzene or naphthalene nucleus and E is an optionally substituted pyridine nucleus. The compounds provide dyeings on synthetic fibers with excellent dyeing and fastness properties.