DE2759102A1 - Dispersible, organophilic, water insol. mono:azo dyestuff prepn. - for optical bleaching, dyeing and printing polyester, polyamide and cellulose ester materials - Google Patents

Abstract

Dyestuff prepn. (I) is obtd. by homogenising, without subdivision into fine particles, a mixt. of an organophilic dyestuff (II) of m.pt. = 140 degrees C and a polar-non-polar emulsifier (III). (I) are used for optical bleaching, dyeing and printing: mainly of linear polyesters but, also for cellulose esters, and synthetic polyamides. They can also be used or mixed fibres e.g. polyamide and polyester; cotton and polyester; or wool and polyester. (I) are very easily prepd. and are highly dispersion stable. They need no non-biodegradable dispersing agents added, nor any costly fine subdivision grinding treatment. Pref. (II) have m.pts. =100 degrees C and carry hydrophilic substits. esp. such as CO2H, CO2R, OCONHR or -(C2H4O)nR" where R is (ar)alkyl or aryl opt. substd., R" is H, acyl or R and n is 1-8. (II) carry no ionising gps. other than carboxyl. (II) esp. have formula E(G1)x Ry where E may be any usual chromophoric or optical bleaching gp.; G1 is a direct link or a polyvalent (at least divalent) bridging gp. stable under the dyeing conditions employed; and R, acting as the m.pt. lowering component and/or conferring the hydrophilic charade (II), is a 5-10C hydrocarbon or a polyoxyalkylene of 2-10 oxyalkylene units, x and y are 1-4, esp. 1-2.

Description

Dye preparations

The invention relates to flowable dye preparations, obtained by homogenizing a mixture without comminuting it from a) an organophilic dye with a melting point 4140cd, b) an emulsifying one polar-apolar compound and c) water and / or one with water in whole or in part Miscible organic solvents, the part by weight of the dye at least 10% and the minimum solubility of the solvent in water 1% by weight.

The dyes contained in the dyeing preparations according to the invention are partly known or obtainable by known processes and can be very diverse Dye or Belong to brightener classes.

For example, azo and azomethine dyes, anthraquinone, Nitrodlarylamine, nethine, quinophthalone, perinone, acridone, naphthazarin or Coumarin dyes or brighteners, provided they are free of ionic groups with the exception of carboxyl groups.

Preferred dyes are above all those dyes which carry hydrophilizing substituent groups such as -COOH -COOR, -O-COOR, -O-CONHR, -CR, -SO2-R, -SO2-OR, - (CH2-CH2-O-) nR ″, where R is optionally substituted alkyl, aralkyl or aryl, R1 and R2 are hydrogen or optionally alkenyl, substituted alkyl, aralkyl or aryl and n is numbers from 1 to 8 and '' stands for R1 or acyl.

Of particular importance from this group are dyes that have the following substituents: such R1 -COOH, -CON, R2 -COOR, -O-COOR, -O-CO-NH-R, - (CH2-CH2-O-) n -R ″, where the radicals R and n have the meaning given above.

Particularly preferred dyes melt below 100 ° C. and correspond of the formula F- (G) x- (R ') y (I) in F for a chromophoric or lightening system G stands for a direct bond or a bond that cannot be split off under dyeing conditions, at least two-valued pontic and R 'for one of the melting point lowering substituents, such as hydrocarbon radicals (C4-C24, especially c -c 5 1 or additional hydrophilizing polyoxalkylene residues (preferably with 2-10 Oxyalkylene units) x and Y are 1-4, preferably 1, are.

Particularly preferred dyes are derived, for example, from the following classes of compounds: a) Monoazo dyes of the formula in which D stands for the radical of an aromatic carbocyclic or heterocyclic diazo component, Ar stands for the radical of an aromatic carbocyclic or heterocyclic coupling component and X1 and K2 H are alkyl, aralkyl, aryl or oxalkyl groups, with K1, K2 or Ar optionally via at least one bridge member carry the substituent R 'once.

b) monoazo dyes of the formula in which D1 stands for the remainder of a carbocyclic or heterocyclic diazo component which carries the substituent R1 optionally bonded via a bridge member at least once, Ar has the meaning given in a) and X3 and K4 are H or optionally substituted alkyl, aryl, aralkyl or oxalkyl groups.

c) Monoazo dyes of the formula D2-N = N-K (IV) in D2 for the Radical of a carbocyclic or heterocyclic diazo component and K is the remainder of a coupling component of the phenol, naphthol, acyl acetic, ureamide, 5-pyrazolone, pyridone or quinolone series, where at least one of the radicals D2 or K carries the substituent -G-R1 at least once, which may optionally be via the phenolic or enolic oxygen atom is bonded.

d) Disazo dyes of the formula Ar1-N = N-Ar2-N = N-Ar3 (V) in the Ar2 denotes an arylene radical, Ar1 and Ar3 represent aryl or metaryl radicals, where a -G-R 'substituent must be present at least once in Ar1, Ar2 or Ar3.

The above and below in any context mentioned alkyl and alkoxy radicals - unless otherwise defined - preferably have 1-4 carbon atoms and can through substituents customary in dye or auxiliary chemistry (e.g.

OH, CN, cl, NO2, F, Br, alkoxycarbonyl or alkoxy), with the exception of ionic radicals (except COOH) be substituted.

Suitable alkenyl radicals have 2 to 5 carbon atoms.

Suitable aryl or aryloxy radicals are naphthalene and especially benzene radicals, which may be e.g. by alkyl, alkoxy, Cl, F, Br, NO2, alkoxycarbonyl, CF3, CN or COOH are substituted.

Suitable acyl radicals are, for example, alkylcarbonyl, arylcarbonyl, alkylsulfonyl, Arylsulfonyl and alkoxycarbonyl.

Suitable hetaryl radicals are pyridyl, thienyl, furyl, quinolinyl, thiazolyl, Thiadiazolyl and pyrazolyl.

Suitable alkylene radicals preferably have 2-10 carbon atoms in the chain, which can optionally be substituted by alkyl, aryl, aralkyl or COOH.

Preferred radicals R 'are those of the formula - (A1-O-) n1 W1 W in A1 stands for an unsubstituted ethylene radical and W1 stands for H, alkyl or alkenyl, aryl or acyl n1 represents integers from 3-8.

Numerous of the for the production of the dyeing preparations according to the invention suitable dyes are already in patent specifications and scientific publications described.

The following, by no means exhaustive, list of references is here indicated: DRP 644 861; DOS 1,544,598; DOS 2,047,432, Z. chem. 1973, issue 1, page 15-16; Z. chem. 1974, No. 11, pages 449-450; Teintex 1952 (vol. 17), pages 290-294; DOS 2,111,370; DOS 1,544,599; DOS 2,318,294; DOS 2,437,432; FR 1 417 575; FR 769 195; JA 47 26 417; JA 48 56 975; JA 76 29 531; GB 568 037; GB 1,353,689; GB 1 319 102; GB 1,413,322; GB 1,431,442; GB 1,388,075; GB 1,274,440; GB 1,282,246; GB 1 281,778; GB 1,283,278; GB 1,278,179; GB 1,309,703; GB 1,279,529; GB 1,292,096; U.S. 2,266,142; U '; 3,449,319; U.S. 2,359,305; U.S. 2,131,712; U.S. 1,807 642; U '; 3,734,857; U.S. 3,157,633; uc 3,445,454; U.S. 3,753,644; U.S. 3,743,476; US 3 740 186; U.S. 3,793,330; U.S. 3,793,331; U.S. 3,775,049; U.S. 3,754,858.

Polar / non-polar suitable for the production of the staining preparations Aids are those of the general formula A- (B> (D) m in which A is an apolar Means a radical with at least 8 continuous carbon atoms, with carbocyclic aromatics in 1,4-linkage with continuous counting with 4 and in 1,2 or 1,3-linkage are rated with 2 or 3, respectively, B stands for a pontic, which is the apolar remainder A and the polar, hydrophilic radical D connects, where n is an integer from 0-5, preferably 0-1, D denotes a hydrophilic group that is cationic, non-ionic or - preferably anionic - can be and m is an integer from 1-5, preferably 1, stand.

A list of suitable radicals A, B and C is given in the table 1 in "Tenside Detergents", Volume 11, 1974, Issue 4, page 186 to be found.

Emulsifiers in the form of the free Acids of the general formula correspond to A1- (B) n (D2) m1 in which B is given Has meaning and A1 means an apolar radical which is an aliphatic carbon chain of at least 10 continuous carbon atoms and optionally by halogen, Alkyl, aralkyl, aryl or alkoxycarbonyl may be substituted, n for a whole Number from 0-2, m1 is 1 or 2, preferably 1, and D is a radical of the formula -COOH, -S03H, -O-SO3H, -P03H2 or -O-PO 3H2.

Emulsifiers with cationic and nonionic ones are also important Groups D.

The cationic groups D are primary, secondary and tertiary amines mentioned in their protonated form, amine oxides, quaternary ammonium groups, pyridinium, Chinnolinium or similar bases or sulfonium or phosphonium derivatives. as uninvited Groups D are said hydroxyalkyl or hydroxyaryl, branched or unbranched polyether chains, derivatives of orbit, mannitol, carbohydrates and like compounds, alkoxylated derivatives of sorbitol, mannitol and the like Compounds, carbonyl groups, ureas, or ursides or polypeptides.

Very particularly preferred sinti polar / apolar compounds of the general Formula A2-D3 A2 in this formula stands for an aliphatic carbon chain at least 10 carbon atoms, which can be further substituted as indicated for A1 and D3 for -So3H, -0-SO 3H or OPO3H2 Finally, emulsifiers of the formula A -D are special to be emphasized in A3 for an aliphatic C chain with at least 10, preferably 12-18 passing carbon atoms and D4 stands for an -O-SO3H group, quality The biodegradability of these types should be emphasized as a particular advantage is.

Suitable for the preparation of the varnish preparations according to the invention for example the following emulsifiers with polar / non-polar structure: fatty acid soaps such as sodium laurate, sodium oleate, sodium linoleate, ammonium ricinoleate, oleic acid esters of sodium isethionate or sodium palmitate, sodium bis (2-ethylhexyl) sulfonsuccinate, Sodium N-methyl-N-oleyl taurate, - (tert-octylphenoxy) -dlethyl ether-ß '-Na-sulfonate, watriuiisododecylbenzenesulfonat, sodium dodecylsulfat, NatriumrN-oleylsulfanllat, Dodecylphosphonic acid, sodium dodecylbenzimidazole sulfate, alkyloxyaryl sulfates, alkylsulfaminoaryl compounds, Dodecyl phenol sulfate, dodecyl benzene sulfamic acid, dibutyl naphthol sulfate, dioctyl naphthol sulfate. Cationic surfactants are dodecylamine acetate and dodecylbenzyldimethylammonium chloride and (n-heptadecyl-N-aminoethyl) imidazoline acetate should be mentioned. Nonionic surfactants are polyethylene glycol monododecyl ether, polyethylene glycol mono (isooctyl) phenyl ether, Polyethylene glycol monooleic acid ester and sorbitol monostearic acid ester polyglycol ether Das The weight ratio of components a) and b) can vary widely.

In most cases it has a molecular weight ratio of dye to emulsifier such as 1: 0.1 to 1: 4 proved to be advantageous; a ratio is preferred from 0.8: 1 to 1: 1, an excess of emulsifier generally not being harmful. In practice, however, an excess ratio of 1: 2 is generally completely sufficient be.

Also the proportion by weight of the components contained in the preparations c) can fluctuate within larger ranges.

In general, their proportion by weight is 5-80%. Preferably it is between 30 and 60%. Suitable solvents are those whose boiling point boiling above 800C, preferably above 1000C, are miscible with water (at 200C minimum solubility: 10 g / l) and are as easily biodegradable as possible.

t8 td be miscible with water in any ratio, for example called: ethylene glycol, propylene glycol, butylene glycol, formic acid, acetic acid, n-propanol, oxyacetone, methyl propyl ketone, cyanoethanol, urea, alkyl ureas, Dimethylformamide, N-methylpyrrolidone, dimethyl sulfoxide, acetylacetone, methyl acetoacetate and acetonitrile.

The use of these solvents is recommended for dyes with relatively low hydrophilicity.

However, preference is given to aqueous systems in which there is less additive Amount of such solvent is indicated when the purely aqueous mixtures from a) and b) are too viscous and therefore not flowable, which is especially true in the case of dyes with melting points above 1000C is the case.

The preparations according to the invention can also be used as mold inhibitors and contain water retention agents in usual amounts.

In the production of the dye preparations one goes before geous enough in such a way that the aqueous filter cake or the oily or pasty dye, as it arises directly during production with the polar-apolar connections mixed and, if necessary, adding water and / or organic solvents until the desired consistency is achieved. It should be emphasized that in the event that the dye / emulsifier mixture is comminuted, there is no costly process Fine dividing devices, such as bead mills, ball mills and vibration mills, are used must be, but a coarse grinding up to medium particle sizes, which is not below 50 / u is completely sufficient.

The preparations according to the invention are easy to handle by are easy to flow and can be easily distributed in the dye liquor.

The new dye preparations are particularly suitable for lightening, Dyeing and printing of textile structures made of linear polyesters (e.g. polyethylene terephthalate) and cellulose esters such as cellulose tetrlacetate, with fiber blends such as polyamide / polyester, Cotton / polyester or wool / polyester can be used.

The dyeing preparations are under dyeing or printing conditions in liquid or dissolved form. Especially because of the combined properties the specially substituted dyes and the polar-apolar auxiliaries are unnecessary In most cases, dyeing and printing require the use of additional surface-active agents such as dispersants, protective colloids, leveling agents or from carriers.

The dye preparations are very easy to manufacture and avoidance of those acting as stabilizers with conventional dyes, sometimes the additional advantage of non-biodegradable dispersants a significant reduction in wastewater pollution from dyeing auxiliaries.

Further advantages are the excellent combination behavior of the To mention preparations with conventional disperse dyes are extraordinary equalizing properties of these preparations and, finally, the above all in the hydrophilized dyes mostly omitted up to higher color depths Need to remove the dye adsorbed on the fiber surface by a remove reductive aftertreatment.

The dyeing preparations according to the invention enable dyeing processes which are largely free from those found in conventional polyester dyes especially problems of dispersion stability that occur with thermal or mechanical stress, i.e. they increase the operational reliability of the dyeing process considerably. aside from that they enable a through-coloring, especially e.g. at crosshairs like it is achieved only with dissolved, but not with dispersed dyes.

The percentages given above - and below - are they are percentages by weight.

Example 1 10 parts of dye of the formula 5 parts of dodecyl sulfate and 23 parts of water are heated to 60 ° -700 ° C. with intensive stirring and cooled to 15 ° -200 ° C. with further intensive stirring.

A storage-stable, pourable paste is obtained which dissolves when stirred in dissolves quickly in water.

a) 2 g of this dye preparation are in a dye bath of 500 ml water containing 0.5 g NaH2PO4 'and acetic acid for pH correction to pH 5, solved. In this liquor 50 g of a fabric made of polyester material are so colored that with sufficient movement of the tissue and / or sufficiently large liquor circulation the dyebath was heated to 1200C and held at this temperature for one hour will. Then it is rinsed and dried. A red color is obtained with good fastness properties, especially good lightfastness.

When staining with small amounts of the preparation, e.g. for Pastel shades are necessary, it is advisable to achieve a level coloring with certainty, add some leveling agent to the dye liquor, especially if the fabric is insufficiently pre-cleaned.

b) 50 g of this dye preparation are dissolved in 1000 ml of water. A fabric made of polyester material is used with this Soaked liquor, squeezed off, dried and then heated for 60 seconds stained at 2100C. It is then rinsed and dried.

Example 2 15 parts of the E 'dye of the formula 20 parts of a mixture of cetyl / stearyl sulfate are kneaded homogeneously with 0.5 part of water at 80-90 ° C.

If 10 parts of the product thus obtained a) are added intensively Stirring with 25 parts of water, so you get a flowing paste, which is in the warm Water dissolves well.

b) with 10 parts of dimethylformamide heated to 120-1300C with stirring and cools down again to 15-200C, so you get a well flowing, stable solution, which dissolves quickly in warm water.

c) with 2.6 parts of water and 6.8 parts of propylene glycol with stirring and heating to 70-800C, a non-flowing, homogeneous one is obtained after cooling Paste that becomes thinly pourable when heated slightly and becomes smooth in water solves.

Stir 18 parts of the above dye with 34 parts of a 50 show aqueous solution of dodecylbenzyldimethylammonium chloride and 20 parts of methyl propyl ketone with brief heating, this way you get something that flows well even when cold Preparation that dissolves smoothly in water. A preparation with similar properties is obtained by replacing the methyl propyl ketone with 0.3 g of urea.

Proceed in the same way with 18 parts of dye, 20 parts 75 pointer aqueous paste of dodecylbenzenesulfonic acid (Na salt) (Malon A) and 20 Parts of propylene glycol or 18 parts of dye, 60 parts of 30% aqueous paste of C10-C18 paraffin sulfonic acid (Na salt) and 50 parts of propylene glycol, so obtained one can also pour preparations that are easy to pour in the cold and dissolve well in water.

a) 1 g of one of these dye preparations in a dye bath of 500 ml of water, the 0.5 g of lauryl sulfate, 0.5 g of NaH2PO4 and acetic acid for pH correction to pH 5, dissolved. After adding 2 g of methyl o-cresotinate in this liquor 50 g of polyester material in a dyeing machine under sufficient Movement of the material to be dyed and / or sufficient liquor circulation to 1000C heated and dyed at this temperature for one hour. Afterward is rinsed and dried. An orange dyeing with good fastness properties is obtained, especially good lightfastness.

b) 2 g of these dye preparations are placed in a dye bath of 500 ml of water, which contains 0.5 g NaH2PO4 and acetic acid for pH correction to pH 5, dissolved. In this 50 g of polyamide fabric are floated in a dyeing machine with sufficient movement of the material to be dyed and / or sufficient liquor circulation heated to 1000C and dyed for one hour at this temperature.

It is then rinsed and dried. An orange was obtained Dyeing with good fastness properties. Dyes mæm according to example la) the polyester fabric is obtained one also efre orange dyeing with good fastness properties.

Example 3 17 parts of the dye of the formula 20 parts of 75 goat aqueous paste of dodecylbenzosulfonic acid (Na salt), 5 parts of water and 40 parts of glacial acetic acid are stirred at 70 to 80.degree. The result is a liquid that becomes pasty on cooling and dissolves smoothly in cold water.

2 g of this dye preparation are in a dye bath of 500 ml Water, the 0.5 g dodecyl sulfate, 0.5 g NalI2P04 and acetic acid for pH correction to pH 5, dissolved.

In this liquor 50 g of a fabric made of polyethylene material colored in such a way that with sufficient movement of the tissue and / or sufficiently large Liquor circulation heated the dye bath to 1200C and for one hour at this temperature is colored. It is then rinsed and dried. You get a yellow color with good general fastness properties, especially good lightness.

Example 4 18 parts of the dye of the formula 20 parts of the emulsifier in Example 3, 10 parts of water, and 15 parts of propylene glycol are heated to 70-80 ° C. with stirring. The result is a preparation that is thin in the warmth and somewhat thick in the cold when it is cold, which dissolves well in warm water.

2 g of this dye preparation are in a dye bath of 500 ml of water, which contains 0.5 g NaH2PO4 and acetic acid for pH correction to pH 5, dissolved. In this 50 g of polyamide fabric are floated in a dyeing machine with sufficient agitation of the material to be colored and / or sufficient Flottenzirlwlation heated to 1000C and dyed for one hour at this temperature.

It is then rinsed and dried. A scarlet coloration is obtained with good fastness properties.

12 parts of the dye are made into a paste with 5 parts of water and 50 parts Emulsifier of the formula n-C16H33 (0C2H4 QoOHt warms up with occasional stirring 5 - 10 hours at 1,300C and after cooling adds about 10 parts of water to obtain a liquid preparation that dissolves clearly in cold water and is suitable for dyeing for example as given in example 1 a and b.

Example 5 13 parts of dye of the formula 50 parts of emulsifier of the formula C16H33O (C2H4O) 20H and 5 parts of water are heated to 100 to 130 ° C for 5 - 10 hours while pasting and stirring and, after cooling, diluted with water to give a well flowing preparation that dissolves clearly in water and is suitable for every dyeing process for synthetic fibers from aqueous liquor.

Example 6 46 parts of dye of the formula 36 parts of cetyl stearyl sulfate (Na salt) 80 parts of N-methylpyrrolidone are heated to 150 ° C. with stirring. Manar contains a preparation that is easy to pour in the heat and in the cold. It dissolves with difficulty in cold water, but when added to a dye bath at 1000C, preferably 120-1300C, it dissolves well. A similar preparation is obtained if, instead of N-methylpyrrolidone, dimethylformamide or 40 parts of dodecylbenzenesulfonic acid (Na salt), 5 parts of water and 30 parts of dimethylformamide are used.

In a high temperature dyeing machine containing a device with which you can smuggle additives into the dye bath at dyeing temperature, become 50 g polyester fabric in a bath containing 1 g NaH2PO4 and acetic acid for pH correction to pH 5, quickly heated to 1400C. After reaching the temperature will be 2 g of the one obtained above Dyestuff preparation washed into the dye bath. It is left at 1400C for 30 minutes with sufficient agitation of the polyester material or / and colored liquor circulation sufficiently large. It is then rinsed and dried.

A red dyeing with excellent lightfastness and sublimation fastness is obtained.

Example 7 20 parts of the dye of the formula 40 parts of 50 goat aqueous solution of dodecyldimethylbenzylammonium chloride and 5 parts of propylene glycol are homogenized with stirring and heating to 80-90 ° C. After cooling, a readily measurable preparation is obtained which dissolves smoothly in water and is suitable for all paint processes from aqueous liquor. If you proceed with 17 parts of the dye and 50 parts of the emulsifier n-C16H320 (C2H40t20.S as in Example 5, you get a similarly useful liquid preparation.

Example 8 45 parts of the dye of the formula 36 parts of cetyl / stearyl result (as sodium salt), 3 parts of water and 11 parts of propylene glycol are heated to 120 ° -1300 ° C. with stirring. A preparation is obtained that is liquid when heated and dissolves well in warm water. Similar preparations are obtained when the cetyl stearyl sulfate is replaced by dodecylbenzenesulfonic acid.

Example 9 20 parts of the dye of the formula 20 parts of 80% dodecyl sulfate sodium salt (remainder Na 2 SO 4) 16 parts of water are dissolved together at 60 ° -700 ° C. while stirring. The result is a fluid, easily pourable liquid preparation which mixes smoothly when stirred into a dye liquor.

The same procedure is followed with 20 parts of the dye of the formula 10 parts of myristyl sulfate and 100 parts of water result in a liquid preparation with similar properties.

The dyes of the formulas behave similarly Example 10 25 parts of dye of the formula 23 parts of dodecylbenzenesulfonic acid as the sodium salt (75% paste), 10 parts of propylene glycol and 10 parts of water are stirred together homogeneously. The result is an easily pourable paint preparation which mixes easily with water.

If you use the same amounts of dye and emulsifier; and 2 parts Glacial acetic acid and 2 parts of water, a similar preparation is obtained.

Example 11 22 parts of dye of the formula 23 parts of dodecylbenzenesulfonic acid (Na salt) (75 goat paste), 15 parts of propylene glycol and 15 parts of water are stirred vigorously with gentle heating. A homogeneous stable liquid is obtained which mixes smoothly with water.

Example 12 23 parts of dye of the formula 61 parts of alkylsulphonic acid mixture with 12-18 carbon atoms as sodium salt (approx. 30% algae paste with water), 10 parts of water and 20 parts of glacial acetic acid are stirred homogeneously with gentle heating. A liquid preparation which is readily miscible with water is obtained.

A similar dye preparation is obtained by using the same Amount of dye, 24 parts 75 pointers dodecylbenzenesulfonic acid as Na salt, 30 parts Water and 20 parts of glacial acetic acid or propionic acid proceed.

If one proceeds in the same way with the dye of the formula using the following amounts 23 parts of dye, 60 parts of alkylsulfonic acid mixture, sodium salt as 30% paste, 15 parts of glacial acetic acid or 23 parts of dye, 23 parts of dodecylbenzenesulfonic acid as sodium salt 75 Xig, 20 parts of water and 10 parts of glacial acetic acid or 10 parts of butylene glycol and 10 parts of water, liquid dye preparations which are smoothly miscible with water are also obtained, as is the case if 36 parts of dodecylbenzyldimethylammonium chloride (about 50% strength aqueous solution) and 20 parts of propylene glycol are used.

Example 13 20 parts of dye of the formula 10 parts of dodecyl sulfate as the sodium salt 80 Xig (remainder Na2SO4) 22 parts of water and 10 parts of dioxane are stirred vigorously. A liquid preparation which is readily miscible with water is obtained.

Example 14 23 parts of dye of the formula 24 parts of dodecylbenzenesulfonic acid (Na salt) 75% strength aqueous paste, 20 parts of water and 20 parts of propylene glycol are stirred while warming to 60-700C. The result is a preparation which can be left well even in the cold and which mixes well with water.

A preparation with similar properties is obtained using 23 parts of the preparation of the formula 23 parts of the above emulsifier, 15 parts of water and 15 parts of propylene glycol or butyl glycol, or if one of the dyes listed in the table below is used.

Tabel Color on polyester yellow yellow red yellow red yellow yellow yellow Continuation of the table Color on polyester yellow yellow yellow red part yellow yellow green.

yellow Continuation of the table Color on polyester brown white white yellow green.

yellow orange red Continuation of the table Green shade on polyester.

yellow

Claims (13)

Claims 1. Flowable dye preparations obtained by homogenization of a mixture of a) an organophilic which takes place without fine comminution Dye with a melting point <1400 ° C., b) an emulsifying polar-apolar compound and c) water and / or a solvent which is wholly or partially miscible with water, the proportion by weight of the dye being at least 10 9Q and the minimum solubility of the solvent in water be 1 percent by weight. 2. dye preparation according to claim 1, characterized in that that the pure dye has a melting point below 1000C. 3. dye preparation according to claim 1, characterized in that the dye hydrophilizing substituent groups from the series -COOH, -CoOR, -O-COOR, -S02-R, -S02-OR, -NH-S02-R, or - (CH2-CH2-O-) nR " where R stands for optionally substituted alkyl, aralkyl or aryl, R1 and R2 stand for hydrogen or optionally substituted alkyl, aralkyl or aryl, R ″ stands for R1 or acyl and n stands for numbers from 1-8. 4. dye preparations according to claim 3, characterized in that that the dyes hydrophilizing substituents from the series -COOH, -COOR, -O-COOR, -O-CONHR, or - (C2H40) n-R trace. 5. dye preparation according to claim 1, characterized in that that these dyes of the formula F- (G) (t y contain, in which F stands for a chromophores or lightening system, G stands for a direct bond or a polyvalent bond Bridge link and R 'for a connected hydrocarbon residue with C4-C24-, in particular C10-C16-C atoms n or a polyoxalkylene radical with preferably 2-10 Oxyalkylene units and x and y are 1-4 6. dye preparation according to claim 5, characterized in that R 'is a radical of the formula - (A1-O-) n1 W1 in A1 is a preferably unsubstituted ethylene radical and W1 is H, alkyl, alkenyl, Aryl or acyl n1 are integers from 3-8. 7. dye preparations according to claim 1, characterized in that that they contain such formula A- (B> (D) m as emulsifying compounds b), in which A is an apolar residue with at least 8 continuous carbon atoms, B is a link, n is an integer from 0-5, D a hydrophilic group and m an integer from 1 - 5 mean. 8. dye preparations according to claim 5, characterized in that that these polar / apolar compounds of the general formula A2-D3 contain, in which A2 for an aliphatic carbon radical with at least 10 carbon atoms and D3 for -S03H, -O-S03H or -OP03H2. 9. dye preparations according to claim 1, characterized in that that they are free from organic solvents. 10. dye preparations according to claim 1, characterized in that that these are free of additional dispersants, protective colloids, leveling agents and / or carriers. 11. dye preparations according to claim 1, characterized in that that they contain 10-30% water. 12. dye preparations according to claim 1, characterized in that that the molar ratio of a): b) is 0.8: 1 to 1: 1. 13. Process for dyeing and printing synthetic fiber materials Polyamides, preferably from aromatic polyesters and cellulose esters, thereby characterized in that dye preparations according to claim 1 are used.