Abstract:
Methine-azo compounds of the formulae ##STR1## in which A is the complement to a heterocyclic 5- or 6-membered ring which has a quaternized N atom as a ring member, which can contain further hetero atoms and which can be substituted and/or be fused with carbocyclic or heterocyclic rings,R is hydrogen, cyano or C.sub.2 -C.sub.3 -alkylene which is bonded to an N atom of ring A to form a 5- or 6-membered ring,B is substituted or unsubstituted phenylene or naphthylene,m and n independently of each other are the numbers 1 or 2, in the formula (I) at least one of the two symbols m and n being the number 2 and where in the case m=2 the two B's are identical or different,KK is the radical of a coupling componentX.sup..crclbar. is an anion and Y is a bridge member. These compounds can be used for dyeing and printing in particular polyacrylonitrile, acid-modified polyester and especially paper.
Abstract:
A process for controlling the tool infeed prior to machining a semi-machined gear comprises aligning the tool with the gear and feeding the tool radially inwardly in rapid traverse without making contact with the gear. The continuous rotating tool is then fed in incrementally in intervals of at least one gear revolution until the tool touches the gear for the first time. At this time the machining process is started.
Abstract:
A method of dyeing keratin-containing fibres, which comprises using a dye of formula wherein R1 and R2 are each independently of the other hydrogen, C1-C4alkyl, halogen or nitro, R3 and R4 are each independently of the other unsubstituted C1-C4alkyl or C1-C4alkyl substituted by OH, C1-C4alkoxy, halogen, CN or by phenyl, X1 and X2 are each independently of the other hydrogen, C1-C4alkyl, C1-C4alkoxy or halogen, R5 is hydrogen or C1-C4alkyl, R6 is C5-C12alkyl or C5-C8cycloalkyl each unsubstituted or substituted by OH, C1-C4alkoxy, halogen, CN or phenyl, or R6 is C1-C4alkyl substituted by phenyl or by C5-C8cycloalkyl, or wherein R5 and R6 together with the nitrogen atom linking them form a piperazine ring, which is substituted, at the nitrogen atom that is not bonded to the phenyl group, by C1-C8-alkyl or phenyl, or which is quaternised at that nitrogen atom by two such groups, the C1-C8-alkyl radicals and phenyl mentioned as substituents of the nitrogen atom of the piperazine ring being unsubstituted or substituted by OH, C1-C4alkoxy, halogen, CN or phenyl, and wherein X− is an anion.
Abstract:
Process for converting sparingly soluble salts of cationic organic compounds and inorganic acids into more readily soluble salts of organic acids, which process comprises: a) preparing a sparingly water-soluble salt of the cationic organic compound with the anion of an inorganic acid, b) adding thereto, in a monohydric aliphatic alcohol, an alkali metal salt or an organic acid, c) filtering off the resulting sparingly soluble alkali metal salt of the inorganic acid, and d) optionally converting the resulting solution into a solid form.
Abstract:
Methine-azo compounds of the formula ##STR1## in which A is the complement to a heterocyclic 5- or 6-membered ring which has a quaternized N atom as a ring member, which can contain further hetero atoms and which can be substituted or/and be fused with carbocyclic or heterocyclic rings,R is hydrogen, cyano or C.sub.2 --C.sub.3 -alkylene which is bonded to an N atom of ring A to form a 5- or 6-membered ring,B is substituted or unsubstituted phenylene or naphthylene,X.sup..crclbar. is an anion andKK is the radical of an open-chain coupling component which contains active methylene groups, except that, if A is the complement to a pyridinium ring, KK cannot be the radical of acetoacetanilide which is unsubstituted or alkyl-substituted in the aniline ring.They are suitable for use as dyes for dyeing and printing cationically dyeable substrates, in particular paper.
Abstract:
Novel water-soluble triazine compounds of the formula ##STR1## in which D and D.sub.1 independently of one another are radicals of diazo components, R and R.sub.1 independently of one another are hydrogen or C.sub.1 -C.sub.4 -aklyl, X is a monosubstituted or disubstituted amino group, a C.sub.1 -C.sub.4 -alkoxy group or an aryloxy group, the symbols Y are basic or cationic groups, which can be identical or different, l is 2, 3, 4, 5 or 6 and n is 0 or 1, and the number of basic and/or cationic groups Y in the molecule must be equal to or greater than the number of SO.sub.3 H groups are useful as dyes for dyeing and printing textile materials, leather and in particular, paper. The dyeings have good general fastness properties and the effluents remain colorless.
Abstract:
There are described novel dyes of the formulae ##STR1## in which R.sub.1 and R.sub.2 independently of one another are each hydrogen, unsubstituted or substituted alkyl, cycloalkyl, aralkyl or aryl, and R.sub.1 and R.sub.2 together with the nitrogen atom, and optionally with the inclusion of further hetero atoms, can also form a 5- to 7-membered heterocycle, or one of the radicals R.sub.1 or R.sub.2 can be linked with the carbon atom, in the o-position with respect to the amino group, of the ring A to form a fused-on, saturated, unsubstituted or substituted 5- or 6-membered ring,X is .dbd.NR.sub.3, .dbd.NCOR.sub.4, ##STR2## .dbd.NH or .dbd.O, wherein R.sub.3 is alkyl or unsubstituted or substituted phenyl,R.sub.4 is unsubstituted or substituted alkyl, aralkyl, aryl, vinyl, alkoxy, phenoxy or amino, andR.sub.5 is cyano, carbalkoxy, or unsubstituted or substituted carbonamide, andR.sub.6 is an electron-attracting radical,processes for producing them, and their use for dyeing and printing synthetic and semi-synthetic fibres, such as polyamide and cellulose triacetate materials, especially however polyester materials.
Abstract:
Dye mixtures containing at least two dyes of the formula (1) ##STR1## wherein R is hydrogen, methyl or ethyl, and n is an integer from 2 to 4, exhibit on synthetic textile material a build-up which is considerably better than that of the individual dyes.
Abstract:
The invention relates to transfer printing supports printed with a design which vaporizes in the temperature range from 180.degree. to 210.degree. C., and also to a process for printing synthetic planar textiles using such supports. The transfer printing supports contain, as red component, a 1-amino-4-hydroxyanthraquinone or -4-aminoanthraquinone compound which does not contain sulfo and carboxyl groups and which carries in the 2-position of the anthraquinone nucleus an alkoxy group which contains at least one fluorine atom and preferably at least three fluorine atoms.
Abstract:
The cationic dyes of formula (1) specified in claim 1 are suitable especially for colouring keratin-maintaining fibres, more especially for colouring hair.