摘要:
An electrostatic toner contains a polymeric binder and as charge stabilizer a 1:2 chromium, iron, cobalt or zirconium complex of azo dyes of the formula D--N.dbd.N--K, where D is derived from a diazo component D--NH.sub.2 selected from the group consisting of 2-amino-4-nitrophenol, 2-amino-5-nitrophenol, 2-amino-phenol-4-sulfonamide, anthranilic acid and picramic acid and K is derived from a coupling component K--H selected from the group consisting of .beta.-naphthol, acetoacetanilide and 1-phenyl-3-methylpyrazol-5-one.
摘要:
Compounds of the general formula IA--B--A (I)where A is a radical of the formula ##STR1## and B is a bridge member of the formula ##STR2## and where R.sup.1 and R.sup.2 independently of one another are unsubstituted or hydroxy-, C.sub.1 -C.sub.4 -alkoxy-, cyano-, C.sub.1 -C.sub.4 -alkoxycarbonyl-, di-C.sub.1 -C.sub.4 -alkylamino-, chlorine- or bromine-substituted C.sub.1 -C.sub.4 -alkyl, cyclohexyl, benzyl, phenylethyl or phenyl, orR.sup.1 and R.sup.2 together with the nitrogen are morpholino, pyrrolidino, piperidino or N-methylpiperazino,R.sup.3 is hydrogen, chlorine, bromine, methyl, ethyl, methoxy, ethoxy or nitro,R.sup.4 and R.sup.5 independently of one another are hydrogen, C.sub.1 -C.sub.4 -alkyl or benzyl,X is oxygen or imino andalkylene is of 2 to 6 carbon atoms and is linear or branched.The compounds of the formula I are particularly suitable for coloring paper pulps.
摘要:
Compounds of the general formulaA.sup.1 .dbd.CH--B--CH.dbd.A.sup.2where A.sup.1 and A.sup.2 are the radical of a quaternized methylene-active compound and B is a bridge member.The compounds according to the invention are very suitable for coloring ligneous and lignin-free paper stock.
摘要:
A benzofuran compound of the formula ##SPC1##Where X.sup.- denotes HSO.sub.4.sup.- , CH.sub.3 SO.sub.4.sup.- , Cl.sup.-, Br.sup.-, 1/2 2ZnCl.sub. 4.sup.-.sup.- or CH.sub.3 COO.sup.-. The said compounds are dyes for synthetic textile material.
摘要:
Natural and synthetic polyamides are dyed with the betaines of 1:1 chromium complexes of sulfo-containing azo or azomethine dyes from an aqueous liquor.
摘要:
Mixtures of two or more cobalt 1:2 complexes of azo dyes of the formula I ##STR1## where R is ##STR2## where R.sup.1 is hydrogen, C.sub.1 -C.sub.18 -alkyl, or hydroxyalkyl or alkoxyalkyl which may be interrupted by oxygen, and X and Y are hydrogen, fluorine, chlorine, bromine, C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.4 -alkoxy.The mixtures according to the invention are particularly useful for dyeing leather.
摘要:
Metal complex compounds which in the form of the free acids correspond to the formula I ##STR1## where A is an aliphatic, carbocyclic or heterocyclic radical,E is an aliphatic or carbocyclic radical,B is a cyano, acyl, substituted sulfonyl, carboxylic acid ester or carboxamide radical, orB and E together with the carbon atoms by which they are linked may be an alicyclic or heterocyclic radical,F is an aliphatic, carbocylic or heterocyclic radical,L is --O--, --COO--, ##STR2## n is 1, 2, 3 or 4, Y is .dbd.CH-- or .dbd.N-- andZ is ##STR3## or the radical of a coupling component, alkyl being of 1 to 4 carbon atoms, andR is hydrogen or unsubstituted or substituted alkyl, cycloalkyl, aryl or acyl and R.sup.1 and R.sup.2 are substituents conventionally present in dyes.The compounds of the formula I give fast dyeings on natural polyamides and synthetic nylons.
摘要:
Compounds which in the form of the free acids correspond to the formula ##STR1## where A is a radical of a diazo component or of an amine,B is a radical of a coupling component or of an aldehyde,R.sup.1 is chlorine or bromine,R.sup.2 is methoxy or ethoxy,X is .dbd.N-- or .dbd.CH--,Y is --O-- or --COO-- andZ is --O-- or --NH--,are dyes which are very suitable for dyeing nylons and natural polyamides.
摘要:
Methine dyes of the general formula ##STR1## where the groups A are identical or different aryl or hetaryl, A.sup..crclbar. is an anion, R is hydrogen, methyl or ethyl and X is a bridge member, and the methine groups are in the .alpha.- or .gamma.-position. The compounds are preferably used for dyeing paper.
摘要:
Paper dyed with compounds of the general formula I ##STR1## where R.sup.1 is unsubstituted or substituted alkyl, T is hydrogen or alkyl, A.sup..theta. is an anion, n is 1, 2 or 3 and X is an aminoaryl radical which may or may not possess further substituents, and where the benzene nucleus a may be substituted by alkyl, hydroxy, alkoxy, chlorine, bromine, amino, alkylamino, dialkylamino, alkanoylamino or nitro. The compounds of the formula I dye paper in brilliant yellow shades. They are also suitable for dyeing materials containing anionic groups.