Abstract:
Betainic complex azo dyestuff-cobalt compound consisting essentially of, per molecule:A cobalt atom;One molecule of a colorless tridentate organic ligand which is coordinatively bound to said cobalt atom by way of three nitrogen atoms which is free from ionogenic groups which do not partake in complex formation, each of said nitrogen atoms participating in the formation of a 5- to 6- membered ring of which said cobalt atom is a member; andOne radical of a mono- or dis- azo dyestuff capable of forming a bicyclic metal complex with cobalt and containing one sulphonic acid group, whereby a complex dyestuff-cobalt compound is formed which has the character of an inert salt (betaine), are disclosed. These compounds are useful for the dyeing and/or pigmenting of polymeric and copolymeric organic material, e.g., lacquers, synthetic plastics or spinning masses, as well as for the dyeing of polyamide fibers from weekly acid bath.
Abstract:
Dyes which are 1:2-chromium complexes, containing one azo dye or azomethine dye and one disazo dye or trisazo dye. The dyes are suitable for dyeing wool, synthetic polyamides and leather.
Abstract:
Disclosed are chrome complex dyes of the formula ##STR1## and of the formula ##STR2## wherein Z and Z' independently of one another are each nitrogen or --CH--;X and X' independently of one another are each oxygen, or a group of the formula --NR--, in which R is hydrogen or C.sub.1 -C.sub.4 -alkyl, provided X is oxygen when Z is --CH-- and provided X' is oxygen when Z' is --CH--;A and B independently of one another are each a diazo component of a benzene or naphthalene radical which carries the hydroxyl or carboxyl group in the o-position with respect to the azo group;C and D independently of one another are each a benzene or naphthalene radical which carries in the o-position with respect to the azo or azomethine group a hydroxyl or carboxyl group, or the radical of an aliphatic or cycloaliphatic aminocarboxylic acid, if n.sub.2 or n.sub.3 is 1 and Z or Z' is CH;E and F independently of one another are each the radical of a coupling component when Z or Z' is nitrogen, the coupling component containing in the o- and -positions with respect to the azo group the groups X and X', respectively, or the radical of an o- hydroxyaldehyde when Z or Z' is --CH--;n, n.sub.1, n.sub.2 and n.sub.3 independently of one another are each zero or 1;Ka.sup..sym. is a cation; andG is an unsubstituted or substituted benzene or naphthalene radical which contains the OH group in the o-position with respect to the coupling position on the group G; andK is the C.sub.1 -C.sub.4 -alkyl group or a --COOR or the ##STR3## group, in which R is hydrogen or C.sub.1 -C.sub.4 -alkyl.
Abstract:
1:2 chromium complex dyes suitable for dyeing nitrogen-containing materials and materials which contain hydroxyl groups, are disclosed which, in the form of the free acid, have the formula ##STR1## wherein each of the symbols independently has the following meanings: Z is nitrogen or a --CH,A is a benzene or naphthalene radical which carries the hydroxyl or carboxy ortho to the azo or azomethine group, or, if n is 1 and Z is a --CH, is the radical of an aliphatic, cycloaliphatic or aromatic aminocarboxylic acid,B and D are each independently of the other the radical of a coupling component which couples in the alpha- or o-position relative to X if Z is nitrogen, or the radical of an o-hydroxyaldehyde if Z is --CH,X is oxygen or --NR, wherein R is hydrogen or C.sub.1 -C.sub.4 alkyl, with the proviso that X must be oxygen if Z is --CH,Y is a bridge member of the formula --SO.sub.2 or --SO.sub.2 --NR--SO.sub.2 --, wherein R is hydrogen or C.sub.1 -C.sub.4 alkyl,n is 0 or 1, andp is an integer from 0 to 6.
Abstract:
The present invention relates to novel chromium complex dyes of the formula ##STR1## wherein Z is hydrogen, chloro, bromo, nitro, lower alkyl or acylamino;L is H.sub.2 O, ammonia, ethanol or ethanolamine;Y is --O--or --COO--;Y' is --O--, --NH--, --N(lower alkyl)-- or --N(phenyl)--;A is ortho-phenylene or ortho-naphthalene which are unsubstituted or substituted by chloro, bromo, cyano, nitro, lower alkyl, lower alkoxy, phenoxy, sulfonamido, substituted sulfonamido, substituted sulfonyl or acylamino; andB is ortho-naphthalene which is unsubstituted or substituted by chloro, acyl, acylamino, lower alkyl, lower alkoxy, sulfonamido, substituted sulfonamido or substituted sulfonyl;where "acyl" is lower alkanoyl, lower alkoxycarbonyl, loweralkylsulfonyl, benzoyl, chlorobenzoyl, methylbenzoyl, nitrobenzoyl, phenoxycarbonyl, phenylsulfonyl or p-methylsulfonyl; substituted sulfonamido and those substituted by lower alkyl, lower hydroxyalkyl, lower alkoxyalkyl, lower cyanoalkyl, cyclohexyl or benzyl; and substituted sulfonyl is lower alkylsulfonyl, lower alkylsulfonyl substituted by hydroxy, chloro or lower alkoxy, chlorophenylsulfonyl, methylphenylsulfonyl, nitrophenylsulfonyl, methoxyphenylsulfonyl, or benzylsulfonyl.These dyes are useful in dyeing and printing materials such as silk, leather, wool and synthetic polyamides with good exhaustion and yielding level dyeings of good fastness properties.
Abstract:
Metallizable disazo dyes of the formula (1) ##STR1## in which A and A' independently of one another are each the radical of a diazo component of the benzene or naphthalene series, at least one of the groups A or A' carrying a metallizable hydroxyl or carboxyl group in the o-position relative to the azo group, and X is substituted or unsubstituted phenylene, naphthylene or C.sub.2 -C.sub.4 -alkylene and R is C.sub.1 -C.sub.4 -alkyl, COO-Q or CONQQ.sub.1, in which Q and Q.sub.1 are each hydrogen or C.sub.1 -C.sub.4 -alkyl.In the form of their cobalt or chromium complexes, the dyes are suitable for dyeing natural or synthetic polyamide materials, and especially wool or leather.
Abstract:
A mixture of at least three selected 1:2 chromium or 1:2 cobalt complex dyes of different colors and belonging to the azo or azomethine series is used for dyeing leather and furs. The mixtures of dyes make it possible for the first time to dye leather by the trichromatic process.
Abstract:
Chromium complex dyes of the formula ##STR1## wherein represents a halogen atom, a C.sub.1 -C.sub.5 -alkyl group, a C.sub.1 -C.sub.2 -alkoxy group, a nitro group, a C.sub.2 -C.sub.3 -alkanoylamino or C.sub.2 -C.sub.3 -alkoxycarbonylamino group,Me.sym. represents a cation, andAr represents the radical of an aromatic or heterocyclic diazo component which carries one to three SO.sub.3 H and/or COOH groups, preferably one to three SO.sub.3 H groups or one SO.sub.3 H and one COOH group, and is optionally further substituted by halogen, C.sub.1 -C.sub.5 -alkyl, C.sub.1 -C.sub.2 -alkoxy or nitro. These dyes are suitable for dyeing and printing nitrogen-containing material such as wool, silk, synthetic polyamide and especially leather.
Abstract:
1:2 Chromium complex dyes of the formula ##STR1## wherein A represents the radical of a phenol substituted by alkyl and/or acylamino or of a 2-naphthol optionally substituted by acylamino, one V represents hydrogen and the other hydrogen or nitro, X is aryl, an aliphatic or araliphatic radical or an optionally substituted amino group and wherein the benzene ring a can be substituted by halogen, cyano, nitro, acylamino, low molecular alkyl, low molecular alkoxy, sulphonamide and sulphone groups, and the benzene ring b can carry a further fused benzene ring or can be substituted by halogen, nitro, low molecular alkyl or alkoxy and arylazo groups, and wherein K.sup.+ represents a cation.
Abstract:
Asymmetric 1:2-chrome complex dyes of the formula: ##STR1## wherein A is the radical of 1-hydroxynaphthalene or 2-hydroxynaphthalene,R.sub.1 is hydrogen, chlorine or methyl,R.sub.2 is hydrogen, nitro or chlorine, andKa.sup.+ is a cation, and of the substituents X.sub.1, X.sub.2 and X.sub.3 one is an SO.sub.3 group, and the other two are hydrogen, X.sub.3 being hydrogen when R.sub.1 is chlorine and R.sub.2 is hydrogen,give blue shades on leather and other polyamides, which shades are lightfast and fast to wet processing.