DE2520527B2 - Aqueous preparations of water-insoluble or sparingly soluble dyes or optical brighteners, as well as their production and use - Google Patents

Description

O NH-Z

of printing pastes and further use in If transfer printing is used, the dyes used will be those that are insoluble or sparingly soluble in water, which, within the scope of this definition, are suitable for the transfer printing process, in particular Dyes, which at atmospheric pressure between 150 and 220 ° C to at least 60% in less than 60 seconds in the vapor state, are heat-stable and transferable without decomposition.

Such dyes are, for example, the ιυ (Z = alkyl with 1 to 4 carbon atoms), Monoazo dyes of the formula

O NH ₂

O —R

15 O NH-Z

wherein X and Y are each an alkyl radical having 1 to 4 carbon atoms mean.

O OH

-Ό (R = alkyl or aryl) O NH ₂

H ₃ C

N = N-

OH
C-NH

C = N
CH ₁

jo (R = shark)

Il

O OH

O NH ₂

CO —OR,

and

O NH ₂

4 (i (R | = alkyl with 3 to 4 carbon atoms),

O NHCH ₃

NO,

N = N-CH

XO-CH,

CO -NH

H ₁ C

and especially the quinophthalone dye of the formula γ, OH

OCH ₃

CN

OH

and the anthraquinone dyes of the formulas O NH-A (A = alkyl or Arvl). as well as the brominated resp.

chlorinated 1, S-diamino- ^ e-dihydroxyanthraquinones called.

However, reactive dyes are also suitable,

Cl-CH ₂ -CO-NH-

which can be used in the transfer printing process, such as. B. the dyes of the formulas

OH

CH ₃

CH ₃

C ₃ H,

= N- ^ f V-N

C ₂ H ₄ OCOCH ₂ Cl

3 »

The selection of dyes 20 is also of importance for dye combinations, because only dyes that are similar in their transfer characteristics should be im Transfer processes can be combined.

The following class of compounds, in particular, are used as optical brighteners that are insoluble to sparingly soluble in water sen with their non-ionic substitution products into consideration:

a) pyrazolines, such as

1- (4-sulfamoylphenyl) -3- (4-chlorophenyl) -

pyrazoline or
1- (4-methylsulfonylphenyl) -3- (4-chlorophenyl) pyrazoline;

b) coumarins, such as

3-phenyl-7- (3-methylpyrazol-1 -yl) -coumarin, _r , 3-phenyl-7- (3-phenyl-4-methyl-1,2,2 -tri-

azol-2-y!) - coumarin or
3- (4-chloro-1,2-pyrazol-1-yl) -7- (3-phenyl-4-methyl-1,2,3-triazol-2-yl) -coumarin;

c) mono- and bis-benzoxazoles, such as -40

Naphthalene-1,4-bis-benzoxazole- (2), thiophene-2,5-bis-benzoxazole- (2), Ethylene-1,2-bis (5-methyl-benzoxazole) - (2). 2- (4-cyanstyryl) -5,6-dimethylbenzoxazole, 4- (5,7-dimethylbenzoxazol-2-yl) - 45

4'-phenylstilbene;

d) Benzimidazoles, such as

Furan-2,5-bis (N-methylbenzene: tiidazole) - (2);

e) Aryltriazoles, such as

2- (4-chloro-2'-cyano-stilben-4'-yl) ^-naphthol0

(r, 2 ': 4.5) -1,2,3-triazole;

f) naphthoxazoles, such as

2- (o) -styryl) -naphtho- (1,2-d) -oxazole;

g) Pyrene, such as ₅₅

2-pyrenyl-4,6-dimethoxy-1,3,5-triazine; h) naphthalimides, such as

4-methoxy-N-methylnaphthalimide or 4,5-diethoxy-N-methylnaphthalimide;

i) bis-ethylene aryls, such as ^b0

1,4-bis (2-cyanstyryl-a>) - benzene, 4,4'-bis (2-methoxystyryl-o>) - biphenyl.

In addition, it is also possible to use mixtures of different Brightener types within the scope of the definition in e> to use the aqueous brightener preparations.

As anion-active dispersants, for. B. Consider:

Sulphated primary or secondary purely aliphatic alcohols with an alkyl chain of 8 to 18 carbon atoms has, e.g. B. Sodium lauryl sulfate, potassium a-methyl stearyl sulfate, Sodium tridecyl sulfate, sodium oleyl sulfate, potassium stearyl sulfate or the Sodium salts of coconut fatty alcohol sulfates;

sulfated unsaturated higher fatty acids or fatty acid esters, such as oleic acid, elaidic acid or Ricinoleic acid or its lower alkyl ester, e.g. B. ethyl, propyl or butyl ester, and the like Oils containing fatty acids, such as olive oil, castor oil, rapeseed oil;

with the help of an organic dicarboxylic acid, such as maleic acid, malonic acid or succinic acid, but preferably with an inorganic merbasic acid such as o-phosphoric acid or in particular sulfuric acid, addition products of 1 to 20 converted into an acidic ester Moles of ethylene oxide in fatty amines, fatty acids or aliphatic ^ alcohols with 8 to 20 carbon atoms in the alkyl chain, e.g. B. stearylamine, oleylamine, stearic acid, oleic acid, lauryl alcohol, Myristyl alcohol, stearyl alcohol or oleyl alcohol, such as. B. the ammonium salt of sulfated Lauryl alcohol triglycol ether or from 1 to 5 moles of ethylene oxide in alkylphenols, such as acidic Sulfuric acid ester of the adduct of 2 moles of ethylene oxide with 1 mole of p-nonylphenol, the acidic sulfuric acid ester of the adduct of 1.5 mol of ethylene oxide with 1 mol p-tert-octylphenol, the acidic sulfuric acid ester of the adduct of 5 moles of ethylene oxide with 1 mole of p-nonylphenol, the acidic Phosphoric acid ester of the adduct of 2 moles of ethylene oxide and 1 mole of p-nonylphenol, of the acidic maleic acid ester of the adduct of 2 moles of ethylene oxide with 1 mole p-nonylphenol;

sulfated esterified polyoxy compounds, e.g. B. sulfated partially esterified polyhydric alcohols, such as the sodium salt of the sulfated monoglyceride of palmitic acid; instead of the sulfates, esters with other polybasic mineral acids, e.g. B. phosphates, can be used;
primary and secondary alkyl sulfonates, the alkyl chain of which contains 8 to 20 carbon atoms, e.g. B. ammonium decyl sulfonate, sodium dodecyl sulfonate, sodium hexadecanesulfonate and sodium stearvlsul-

fonat;

AIkylarylsulfonate, such as alkylbenzenesulfonates with straight or branched alkyl chain with at least 7 carbon atoms, ζ. B. sodium dodecylbenzenesulfonate, 1,3,5,7-tetramethyloctylben- ' zene sulfonate, sodium octadecyl benzene sulfonate; such as alkylnaphthalene sulfonates, e.g., sodium 1-isopropylnaphtha! in-2-sulfonate; Sodium dibutylnaphthalene sulfonate; or like Dinaphthylmethanesulfonate, z. B. the disodium salt of di (6-sulfonaphthyl-2) methane;

Sulfonates of polycarboxylic acid esters, ζ. Β. Sodium dioctyl sulfosuccinate, Sodium dihexyl sulfo-

K - "- ·". the sodium, potassium, ammonium, N-alkyl, N-hydroxyalkyl, N-alkoxyalkyl or N-cyclohexylammonium or hydrazinium and morpholinium salts of fatty acids with 10 to 20 carbon atoms, such as lauric, Palmitic, stearic or oleic acid from naphthenic acids, from resin acids such as abietic acid, e.g. B. the so-called rosin soap.

Lignosulfonates and condensation products of aromatic sulfonic acids with formaldehyde have proven particularly advantageous as anionic dispersants proven, such as condensation products from formaldehyde and naphthalenesulfonic acids or from formaldehyde, Naphthalenesulfonic acid and benzenesulfonic acid, jo or a condensation product of crude cresol, formaldehyde and naphthalenesulfonic acid.

But there are also mixtures of anionaktivcn dispersants into consideration, such as. B. such from the condensation product of raw cresol, formaldehyde and naphthalenesulphonic acid with ligninsulphonate.

Usually the anionic dispersants are in the form of their alkali salts, their ammonium salts or their water-soluble amine salts. Advantageously, qualities that are poor in foreign electrolytes are to be used will.

Examples of non-ionic dispersants mentioned are:

Addition products of z. B. 5 to 50 moles of _4- alkylene oxides, in particular of ethylene oxide, with individual ethylene oxide units being replaced by substituted epoxides such as styrene oxide and / or propylene oxide, to higher fatty acids or to saturated or unsaturated ₅ _ alcohols. Mercaptans or amines with 8 to 20 carbon atoms or on alkylphenols or alkylthiophenols, the alkyl radicals of which have at least 7 carbon atoms;

Reaction products from higher molecular weight fatty acids and hydroxyalkylamines. These can be for example from higher molecular weight fatty acids, preferably rolls with about 8 to 20 carbon atoms, z. B. caprylic acid, stearic acid, oleic acid and especially that under the collective term "Coconut oil fatty acid" combined acid mixture and hydroxyalkylamines, such as triethanolamine or preferably diethanolamine, and mixtures of these amines, the reaction taking place in such a way that the molecular The quantitative ratio between hydroxyalkylamine and fatty acid is greater than 1, e.g. 2: 1. Such Connections are described in US Pat. No. 20 89 212;

Alkylene oxide, especially ethylene oxide condensation products, whereby individual ethylene oxide units are substituted by epoxides such as styrene oxide and / or propylene oxide, can be replaced;

Esters of polyalcohols, in particular mono- or diglycerides of fatty acids with 12 to 18 carbon atoms, z. B. the monoglycerides of lauric, stearic, palmitic or oleic acid, and the Fatty acid esters of sugar alcohols such as sorbitol, sorbitans and sucrose, for example Sorbitan monolaurate palmitate, stearate, oleate, sesquioleate, trioleate or their oxyethylation products.

Fatty alcohol polyglycol ethers, especially those with more than 20 moles, have proven to be particularly advantageous Ethylene oxide proved how cetyl stearyl alcohol etherified with 25 mol of ethylene oxide, stearyl oleyl alcohol etherified with 80 mol of ethylene oxide and oleyl alcohol etherified with 20 to 80 moles of ethylene oxide. Phenol ethers, such as p-nonylphenol, are also very suitable etherified with 9 mol of ethylene oxide, ricinoleic acid ester with 15 mol of ethylene oxide and hydroabietyl alcohol etherified with 25 moles of ethylene oxide.

These nonionic dispersants should advantageously be low in electrolytes. Mixtures of such agents are possible and have z. T. synergetic effects.

Among hydrotropic agents that are used in the aqueous preparations according to the invention, are to be understood as those who are capable of dispersing the water-insoluble to sparingly soluble To convert dyes or optical brighteners into a stable, deflocculated form, without this being a chemical reaction between the dye or the optical brightener and the hydrotropic substance takes place. These compounds should be soluble in water. As substances exhibiting these properties come z. B. into consideration: hydrotropic salts, such as sodium benzoate, sodium benzene sulfonic acid, Sodium p-toluenesulphonic acid or N-benzylsulphanilic acid Sodium. In this context, however, nitrogen-containing compounds have proven particularly advantageous proven, such as urea and its derivatives, for example dimethylurea or guanidine chloride, or acid amides, such as acetamide and propionamide and their derivatives, in particular N-methylacetamide.

When using the hydrotropic substance according to the invention in combination with dispersions of According to the definition, dyes or optical brighteners stabilize the deflocculated dispersion achieved without actually dissolving the dyes.

Thanks to this combination according to the invention, namely the anionic and nonionic dispersant together with the hydrotropic agent in the specified amounts, it is possible to use aqueous preparations to obtain which on the one hand low in dispersant and on the other hand concentrated in dye or optical Brighteners are and which are characterized above all by their stability in both heat and cold in a temperature range from about minus 10 ° C to plus 60 ° C; due to their storage stability of several months; due to the free flow; finely dispersed form and due to their low viscosity in the range from about 10 to 1000cP / 20 ° C.

Due to the high weight proportion of dye or

optical brightener, the aqueous preparations according to the invention are very compact and therefore space-saving. A reduction in storage, dispatch and transport space is therefore guaranteed.

If other property-enhancing additives are required and necessary to this ^r> preparations added to such. B. hygroscopic agents. z. B. glycols or sorbitol; Antifreeze agents ,? .. B. ethylene glycol, monopropylene glycol; Antimicrobics; Fungicide, ζ. B. aqueous formalin solution; Antifoam agents and viscosity improvers.

Due to the presence of about 10% sorbitol, a perfect redispersibility of the completely dry dough can be achieved ».

It goes without saying that with Aufheüerprä r. only those anionic and nonionic dispersants or hydrotropic agents are used which do not have any strongly disadvantageous properties (e.g. so-called quenching effects) on the fluorescence of the brighteners. For later use in Foulardtherm processes, these tools must also short heat loads to be washed from 150 to 220 ⁰ C, without yellowing.

Thanks to their high content of dye or optical brightener, these preparations are significantly superior to the liquid brands previously available on the market, because their lower content of dispersants and thickeners means that they are too low-viscosity printing inks with sufficient dye or optical brightener concentration let process. When printing on paper using solvent-free, purely aqueous printing processes using roller, flexographic and, in particular, rotary film printing machines, low-dispersant, highly concentrated preparation systems are required. Since paper has a significantly reduced absorption capacity for printing inks compared to textile materials , the formulations suitable for direct printing on textiles cannot be used, especially for deep tones.

The new aqueous preparations are prepared, for example, by mixing and grinding the dye or optical brightener in water with at least one of the anionic and / or nonionic dispersants mentioned, which, for. B. takes place in a ball mill or sand mill and A ^r > adds the remaining components beforehand, during or after the grinding process, so that a preparation is produced, the particle size of which is smaller than 10 μ, in particular smaller than 2 μ.

The new aqueous dye preparations are used advantageously after dilution with Water for dyeing or printing textile materials according to continuous or discontinuous Procedure. Depending on the dyes used in the preparations, the most varied of them can be used Textile materials are dyed or printed, such. B. polyester or cellulose triacetate materials or Fiber mixtures when the preparations are used as disperse dyes.

Also in the production of printing pastes for the <, o traditional textile printing is of interest, preparations with the lowest possible dispersant content use, since the disperse dyes available today contain large amounts of dispersant, the after fixation of the dye are washed out b5 and thus unnecessarily polluting the wastewater.

The thickeners used to produce these printing pastes can, as the preparations according to the invention In contrast to commercially available disperse dyes, they are low in electrolytes and are also sensitive to electrolytes. In this context, polyacrylic-based thickeners have proven particularly valuable.

A preferred possible use is also that these dye preparations are used of thickeners for the production of printing pastes on an aqueous basis or on the basis of a water-in-oil emulsion which printing pastes can be used for printing on carrier materials find and which printed carrier materials in turn in the transfer printing process on textile materials can be used.

The new aqueous optical brightener preparations are preferably and advantageously used for optical brightening after dilution with water of textile materials according to z. B. the exhaust process, high temperature exhaust process and Foulardtherm process. If necessary, to stabilize the liquor and / or to achieve carrier effects further suitable dispersants or other auxiliaries can be added.

A wide variety of textile materials can be used as materials, such as B. polyester materials, Polyamide, polyacrylonitrile, cellulose acetate and cellulose triacetate, these materials in the most varied Processing stages may exist. In addition, it is also possible for these preparations to be used for production of printing pastes can be used, which either for the conventional lightening of in particular Find textile materials use, or for printing carrier materials, such as in particular Paper, which in turn is used in the transfer printing process on textile materials.

The brightener preparations can also be added to the spinning mass.

In FR-PS 21 98 983 preparations are already described, which are an anionic and a nonionic Contain surfactant as well as a hydrotropic agent. In this PS, however, only specific anionic Dispersants listed and these are used in significantly higher amounts than in this one Registration used. There is no indication in this PS that a combination of anionic and nonionic dispersants and hydrotropic agents is possible with 0.1 to 5% by weight get along with anion-active dispersant. This brings about when using electrolyte-sensitive thickeners significant benefits.

In the following examples, parts mean parts by weight. The temperatures are given in degrees Celsius.

A. Preparation of the preparations
example 1

500 parts of the coarsely crystalline, dry dye of the formula

O NH ₂

O OH

are in a pre-prepared solution of 25 parts

12th

an anioriactive dispersant (naphthalenesulfonic acid Sodium condenses with formaldehyde), 10 parts of a fatty alcohol polyglycol ether as non-ionic Dispersing agent (cetyl / stearyl alcohol etherified with 25 mol of ethylene oxide), 10 parts of 35% strength aqueous formalin solution, 100 parts of 1,2-propylene glycol as Antifreeze and 118 parts of urea as hydrotropes Stabilizer in 147 parts of water with intensive stirring (dissolver or Lödige-Misrher) entered slowly and homogenized and deaerated for about 1 hour.

This 55% stirring of the dye is then carried out in a sand mill or, preferably, in a closed one Bead mill using Ottawa sand or Siliquarzitkuge! N {! mm diameter) for approx. 10 hours ground at a temperature of 20 to 50 °. After this time, a dispersion is obtained, the predominant part of which Majority of the particles is smaller than 5 μ. By adding another 90 parts of water, one if necessary Pre-determined percentage by weight of carboxymethyl cellulose as a thickening agent to achieve the final viscosity in the ideal range of 500 to 100OcP (Brookfield viscometer; 30 rpm) the finely ground dispersion is diluted to a dye content of 50% (yield: 1000 parts).

The free-flowing aqueous preparation remains completely unchanged even during a storage period of several months and withstands temperatures from -15 ° to + 40 ° without damage.

Is used instead of the specified dye, the anion-active dispersant, the non-ionic The dispersant and the hydrotropic agent have the same parts as those given in Table I below Components, if otherwise proceeding as specified, map. also lagerstabüe, freiP.ießen.de aqueous Dye preparations with analogous properties, their dye content and the respective milling time of the dye is determined and is between 40 and 60 percent by weight or 5 to 10 hours.

Table I.

E.g. Farbi; tolT

Anionaklives
Dispersants

Noniiimigcncs
Dispersants

llydrolrope means

O Nile - CII,

Ligninsullonal

l.ignimull'onal

Condensation product kl from approx. 2 moles of naphthalenesulonic acid and 1 mole of formaldehyde

condensation product from naphihalinsulonic acid, Formaldehyde and benzene sulfonic acid

Feltalkoholpulyglycolälhcr acetamide (stearyl / oleyl alcohol etherified with 80 mol
Äthvlenovyd)

Phenolic ether oil

(p-nonylphenol verälherl
with ¹ J mol of ethylene oxide)

Mixture of 6 parts
Ricinoleic acid island with 15 moles of ethylene oxide with 1 part
l-cltul koho] polygly kolüthcr (celyl / stearyl alcohol verälherl with 25 mol of ethylene oxide)

Acetamide

Fetal alcohol polyglycol ether (Olcyl alcohol verälherl mit 20 moles of ethylene oxide)

Acetamide

Cl

OH

CH,

Lignin sulfate

Hydroabielyl alcohol etherified with 25 moles Ethylene oxide

DirnethylhamstolT

O NH ₂

OCH,

O NH,

Mixture of I part condensation product from raw cresol, formaldehyde and naphlhalinsulibic acid with I part lignin sulfonate

Fatty alcohol polyglycol ether (cetyl / stearyl alcohol etherified with 25 mol
Ethylene oxide)

Dimethyl urine t

hoitscl / unp l'arhstoll () NU -
/ V "-O Antonaklives
Dispersants Nichlionogcnes
Dispersants Hydrolropcs
middle E.g
No.: CO Condensation product
2 moles of naphihalinsulfonic acid
^ and 1 mole of formaldehyde
(sal / poor) FcUaI kr hol polyglycol ether
(Cetyl / slearyl alcohol
etherified with 25 moles
Ethylene oxide) urea X II!
- UN O O-f Dyes (7ο Cjcmisch the
Ex. I 38%
Ex. 2 47.5%
Ex. 3 14.5% Condensation Proüuki
from approx. 2 moles of naphthalene
sulfonic acid and 1 mole
formaldehyde reitaikuhoipoiygiykuiätiic!
(Cetyl / slearyl alcohol
increased to 25 moles
Ethylene oxide) iiafüMufi 9

NH,

O OH .ClI, -CH ^S CH, CH, / CH,
y Example 12 O NH
I. -CH K Y V Il
O NH

Condensation product like.

from approx. 2 moles of cresol,
0.2 mole of 2-naphthol-6-sulfonic acid and i mole of formaldehyde

Poly-2-naphthylic hand-like

sulfosä'urc

Guanidine chloride

N-methylacclamide

500 parts of the dried and powdered press cake of dichloro-indanthrone are dissolved in a solution of 130 parts of urea, 10 parts of sodium dinaphthylmethanesulfonate, 20 parts of a condensation product of stearyl / cetyl alcohol with 25 mol Ethylene oxide in 100 parts of monopropylene glycol and 240 parts of water and stirred with the addition of 2000 Parts of glass spheres 1 mm in diameter are ground until the particle size is essentially around 1 to 2 Micron lies Then the specimen is separated from the spheres.

A free-flowing, storage-stable dye preparation is obtained.

Example 13
500 parts of the crude dye of the formula

Condensation product of naphthalenesulfonic acid and formaldehyde, 20 parts of the reaction product of p-nonylphenol and 9 moles of ethylene oxide, 130 parts Urea, 100 parts of ethylene glycol and 370 parts of water with 2000 parts of sand are ground until the Particle size is around 1 to 2 microns, and then separated from the sand.

The result is a pourable, stable dye preparation.

Example 14

480 parts of the coarsely crystalline, dry dye of the formula

OH

are combined with a solution of 10 parts of a are in a prepared solution of 24 parts of an anionic dispersant (naphthalenesulfonic acid Sodium condenses with formaldehyde), 10 parts of a fatty alcohol polyglycol ether as non-ionic Dispersing agent (cetyl / stearyl alcohol etherified with 25 mol of ethylene oxide), 10 parts of 35% aqueous Formalin solution, 100 parts of 1,2-propylene glycol as Antifreeze and 124 parts of urea as a hydrotropic stabilizer in 172 parts of water intensive stirring (dissolver or Lödige mixer)

added slowly and homogenized and deaerated for approx. 1 hour

The approx. 52% dye is then stirred in a sand mill or preferably in a closed bead mill using Ottawa sand or siliquarzite balls (1 mm diameter) ground for about 10 hours at a temperature of 20 to 50 °. After this After a while, a dispersion is obtained whose overwhelming majority of the particles are smaller than 5 μ. By adding of a further 80 parts of water, if necessary a predetermined weight proportion of carboxymethyl cellulose contains as a thickener to bring the final viscosity into the ideal range of 500 to lOOOcP (Brookfield viscometer; 30 rpm) bring the finely ground dispersion to the dye content diluted by 48% (yield: 1000 parts). The free-flowing aqueous treatment remains during completely unchanged after several months of storage and withstands temperatures from -15 ° to + 40 ° without damage.

Example 15

400 parts of the coarsely crystalline, dry dye of the formula

NH,

CN

O NH-

are in a prepared solution of 20 parts of an anion-active dispersant (naphthalenesulfonic acid Sodium condenses with formaldehyde), 20 parts of a fatty alcohol polyglycol ether as non-ionic Dispersing agent (cetyl / stearyl alcohol etherified mil 25 mol of ethylene oxide), 10 parts of 35% aqueous Furmaline solution, 100 parts of 1,2-propylene glycol as Antifreeze and 150 parts of urea as hydrotropes Stabilizer in 190 parts of water with intensive stirring (dissolver or Lödige mixer) added slowly and homogenized and deaerated for about 1 hour.

This 45% dye mixture is then mixed in a sand mill or, preferably, in a closed one Pearl mill using Ottawa sand or silica quartzite balls (1 mm diameter) for approx. 10 hours a temperature of 20 to 50 °. After this After a while, a dispersion is obtained whose overwhelming majority of the particles are smaller than 5 μ. By adding from another 110 parts of water, one if necessary Pre-determined percentage by weight of carboxymethyl cellulose as a thickening agent to achieve the final viscosity in the ideal range of 500 to 1000 cP (Brookfield viscometer; 30 rpm) the finely ground dispersion on the dye content dilute by 40%! (= 1000 parts). The free-flowing aqueous treatment remains for several months Storage row completely unchanged and withstands temperatures from -15 ° to + 40 ° without damage.

Example 16

482 parts of the coarsely crystalline, dry dye of the formula

O NH-CH ₃

O NH-CH ₃

are in a prepared solution of 20 parts of an anion-active dispersant (naphthalenesulfonic acid Sodium condenses with formaldehyde), 15 parts of a fatty alcohol polyglycol ether as non-ionic Dispersing agent (cetyl / stearyl alcohol etherified with 25 mol of ethylene oxide). 10 parts of 35% aqueous Formalin solution, 100 parts of 1,2-propylene glycol as an anti-freeze agent! and 120 parts of urea as hydrotropes Stabilizer in 145 parts of water with intensive stirring (dissolver or Lödige mixer)

κι entered slowly and homogenized and vented for about 1 hour.

This 54% dye mixture is then mixed in a sand mill or, preferably, in a closed one Pearl mill using Ottawa sand or silica quartzite balls (1 mm diameter) for approx. 10 hours ground at a temperature of 20 to 50 °. After this time, a dispersion is obtained, the predominant part of which Majority of the particles is smaller than 5 μ. By adding another 108 parts of water, add one if necessary Pre-determined percentage by weight of carboxymethyl cellulose as a thickening agent to achieve the final viscosity in the ideal range of 500 to 1000 cP (Brookfield viscometer; 30 rpm) the finely ground dispersion on the dye hall

4 · -, diluted by 48.2%. The free-flowing aqueous treatment remains completely unchanged even during several months of storage and keeps temperatures from - 15 ° to + 40 ° without damage.

Example 17

150 parts of a yellow dispersion according to Example 14, 350 parts of a red dispersion according to Example 1,
300 parts of a blue dispersion according to Example 15

and
200 parts of a blue dispersion according to Example 16

are homogenized in a stirred tank.

1000 parts of a black formulation are produced which have a viscosity in the range from 500 to 1000 cP (Brookfield viscometer; 30 rpm).
h ^r , The free-flowing, highly concentrated aqueous dough remains completely unalterable even after several months of storage and can withstand temperatures from - 15 ° to + 40 ° without damage.

030 118/20

Example 18

445 parts of the coarsely crystalline, dry dye of the formula

NH ₂

O NH

are in a prepared solution of 10 parts of an anionic dispersant (naphthalenesulfonic acid sodium condensed with formaldehyde), 20 parts of a fatty alcohol polyglycol ether as a non-ionic dispersant (cetyl / stearyl alcohol etherified with 25 moles of ethylene oxide), 10 parts of 35% strength 1.2 parts aqueous formalin solution Propylene glycol as an antifreeze and 137 parts of urea as a hydro tropic stabilizer in 205 parts of water with vigorous stirring (dissolver or Lödige mixer) slowly added and homogenized and deaerated for about 1 hour.

This 48% dye mixture is then used in a sand mill or preferably in a closed bead mill using Ottawa sand or siliquarzite balls (1 mm diameter) ground for about 10 hours at a temperature of 20 to 50 °. After this After a while, a dispersion is obtained whose overwhelming majority of the particles are smaller than 5 μ. I II addition of a further 73 parts of water, which always has a predetermined weight proportion of carboxymethyl cellulose contains as a thickener to bring the final viscosity into the ideal range of 500 to 1000 cP (Brookfield viscometer: 30 rpm) bring the finely ground dispersion to the dye content diluted by 44.5% (= 1000 parts). The free-flowing aqueous treatment remains for several months Storage time completely unchanged and withstands temperatures from - 15 ° to + 40 "without damage.

Example 19

415 parts of the coarsely crystalline, dry dye the formula

NH ₂

CH ₃

are in a prepared solution of 5 parts of an anion-active dispersant (naphthalenesulfonic acid Sodium condenses with formaldehyde), 20 parts of a fatty alcohol polyglycol ether as non-ionic Dispersant (cetyl / stearyl alcohol etherified with 25 mol of ethylene oxide), 10 parts of 35% aqueous Formalin solution, 100 parts of 1,2-propylene glycol as Antifreeze and 150 parts of urea as a hydrotropic, stabilizer in 222 parts of water Intensive stirring (dissolver or Lödige mixer) slowly added and for about 1 hour homogenized and deaerated.

This 45% stirring of the dye is then ground in a sand mill or preferably in a closed bead mill using Ottawa sand or siliquarzite balls (1 mm in diameter) for about 10 hours at a temperature of 20 to 50 °. After this time, a dispersion is obtained, the majority of the particles of which are smaller than 5 μ.By adding a further 78 parts of water, which if necessary contains a predetermined percentage by weight of carboxymethyl cellulose as a thickener, to bring the final viscosity into the ideal range of 500 to 1000 To bring cP (Brookfield viscometer; 30 rpm), the finely ground dispersion is diluted to the dye content of 41.5% (= 1000 parts). The free-flowing aqueous preparation remains completely unchanged even after several months of storage and withstands temperatures from -15 ° to + 40 ° without damage.

Example 20

500 parts of the pure dry active ingredient of the optical brightener of the formula

ο /

J [JL <

^ O

are in a solution of 17 parts of an anion-active

jo dispersant (formaldehyde, condensed with naphthalenesulfonic acids; sodium) and 125 parts of urea as hydrotropic agent in 230 parts of water and 50 parts of monopropylene glycol slowly added with vigorous stirring and for about 1 hour

Vi homogenized and deaerated. This approx. 53% agitation is then ground in a closed agitator ball mill (DYNO-MiII type KDL) using silica-quartzite balls (1 mm diameter) for approx. 4 hours. After this time a dispersion is obtained, the particle size of which is less than 3 microns. By adding a further 50 parts of monopropylene glycol, 10 parts of 35% formalin solution and 18 parts of a fatty alcohol polyglycol ether as a nonionic dispersant (cetyl / stearyl alcohol etherified

γ, with 25 mol of ethylene oxide) the millbase is diluted to 1000 parts and homogenized for 15 minutes. If necessary, a defoamer is also added. It is then separated from the grinding media, a free-flowing, aqueous preparation with a

ίο Content of active substance of approx. 50 percent by weight. The preparation is low-viscosity (<100 cP / 20 ⁰ ). It is therefore advisable to slightly thixotrope the thin-bodied dispersion by grinding in <0.75% Aerosil 200 (final viscosity 500 to 800 cP / 20 °),

μ which largely prevents settling even after a storage period of several months.

Is used instead of the specified optical brightener, the anion-active dispersant, des nonionic dispersant and the hydrotrope

bo Using equal parts of the table II below specified components and if the rest of the procedure is as specified, one also obtains storage-stable, free-flowing aqueous optical brighteners · dispersions with analogous properties, their active substance content

bi and respective grinding time on the texture of the crystalline Aufhellers, the mill type and the type of grinding media used is determined and between 40 and 60 Percent by weight or 3 to 15 hours.

Table IJ

E.g. optical brightener No.

Anion-active Non-ionic Hydrotropes Dispersants Dispersants middle sulfonated sulfone Fatty alcohol polyglycol Urea T. mixture of phenol and ether (stearyl / oil Naphthalene, partially alcohol etherifies condensing; with with 80 mol AeO) formaldehyde Condensation product the same the same from approx. 2 moles of naphthalene sulfonic acid and 1 mol formaldehyde

21

22nd

H ₁ C

CH ₁

23

24 / V ^N o Π

25 gcmäll example 23

26 according to [! Erspiel 21

27

28

■ -N ■ ' ° '

Il gcmäU example 22

B. Application of the preparations
Example 29

By stirring in a dye preparation prepared according to Examples 1 to 7 or 9 by means of vigorous Stirring in an aqueous polyacrylate solution gives printing inks. These inks can be used for paper can be printed using the rotary film printing process. The paper printed in this way can then be transferred using the transfer printing process, are preferably used in application to polyester textile materials, wherein sharply contoured, brightly colored prints are obtained.

Example 30

100 parts of the dye preparation according to Example 8 are dispersed in 1900 parts of water by stirring. The resulting liquor is used to impregnate a fabric made of mercerized cotton and squeeze it open a weight increase of 60% and dries in a stream of hot air.

The fabric in an aqueous solution containing per liter 20 parts of sodium hydroxide and 40 parts of sodium dithionite, at a temperature of 20 °, impregnated at 60% weight gain abge ^c "> desgl.

the same

N-methylacelamide

Lignosulfonal llydroabietyl alcohol Dimethyl verälherl with 25 mol urea Ethylene oxide Ligmn sulfonate Phenol ether (p-nonyl urea phcnol etherifies with 9 moles of ethylene oxide) Ligninsulfonisl Felt alcohol poly Acetamide glycol ether (oleyl alcohol compares with 80 moles of ethylene oxide) Condensate product Fatty alcohol poly Dimethyl of formaldehyde with Glykolalhcr (cetyl / urea Naphlhalinsulfic acid Stcarylaikohoi verathcrl with 25 moles Ethylene oxide (icmisch from I part llydroabietyl alcohol N-methyl Condensation product vcralhert with acetamide from raw cresol, 25 moles of ethyl oxide Formaldehyde and Nuphlhalinsulfonic acid mil I part of lignin sulfonate

4 ^r > squeezes, steamed in an air-free steamer for 30 seconds and finished in the usual way by oxidizing, rinsing, soaping and drying.

The result is a strong, true yellow dyeing of excellent levelness.

Example 31

100 parts of the preparation according to Example 3 are diluted with 1900 parts of water. With the dispersion obtained a knitted fabric of polyester is impregnated>^r> squeezed to 50% weight gain, dried in a hot air current and is also heat set at 200 ° for 60 seconds. The yellow dyeing obtained, which is distinguished by a smooth, level appearance and very good fastness properties, is rinsed and dried.

Example 32

Dilute 100 parts of the dye preparation according to Examples 3 and 8 with 1800 parts of water, impregnates a mixed fabric made of equal parts <> ■> Polyester and cotton, squeezes to 60% weight gain, dries, heatsets for 60 seconds 200 °, impregnated in an aqueous bath, containing 20 parts of sodium hydroxide and 40 parts per liter

Sodium dithionite, steams for 60 seconds, oxidizes, rinses, soaps and dries. A level, yellow color is obtained Tone-on-tone dyeing with very good fastness properties and a smooth appearance.

Example 33

A printing paste is produced by mixing 15 parts of a dye preparation according to Example 1 in 85 parts a 2.5% strength aqueous solution of a Nat'Mm-AIgI-natvrrdungung be stirred in as a thickening of the stem.

This printing paste of approx. 8000 cP is applied to paper with a gravure printing device. That so printed paper can be transferred using the transfer method, ζ. Β. on polyester textiles. It result sharp, level prints with high color depth.

10

It is noteworthy that the viscosity of the stem thickening is very important for its consistency a good pressure loss is by stirring in the high amount of dye is changed only very slightly.

Instead of the dye mentioned and the stem thickening mentioned, those of the following are used Table IH is used in the specified amount, so printing pastes are also obtained that are either in Flat film printing, rotary film printing, gravure printing or relief printing or other suitable ones Printing processes, such as spraying, spraying, brushing, etc., on paper or other suitable intermediate carriers can be used.

Table III

Example dye preparation stem thickening

85 parts of 2.5% strength aqueous solution of weakly alkaline, anionic Kernel meal derivative

85 parts of 2% strength aqueous solution of neutral, nonionic, depolymerized Guar flour

85 parts of 2% strength aqueous solution of neutral, nonionic hydroxyethylated Locust bean gum

85 parts of an oil-in-water emulsion with 1.5% gum ether

85 parts of 8% strength aqueous solution of nonionic, neutral corn flour ether thickening

85 parts of 2.5% strength aqueous solution of anionic, alkaline flour ether thickening

85 parts of 3.5% strength aqueous solution of a mixture of nuclear methyl ether and Strong ether

85 parts of 5% strength aqueous solution of anionic weakly alkaline starch ether

85 parts of 2% strength aqueous solution of carboxymethyl cellulose

85 parts of 1.25% strength aqueous solution of hydroxyethyl cellulose

85 parts of 0.8% strength aqueous solution of a high polymer polyacrylic acid

85 parts of 6% strength aqueous solution of self-crosslinking, thickening Acrylate-based polymer paste

85 parts of 6% strength aqueous solution of a dough made from copolymer maleic acid based

85 parts of 6% strength aqueous solution of corn meal ether with colloidal silica

85 parts of 10% strength aqueous solution of lignocellular carboxymethyl cellulose

85 parts of a water-in-oil emulsion with sodium alginate as protective colloid

34 15 parts according to
Example 2 35 15 parts according to
Example 3 36 15 parts according to
Example 4 37 15 parts according to
Example 5 38
39 15 parts according to
Example 6
15 parts according to
Example 7 40 15 parts according to
Example 9 41 15 parts according to
example 1 42 15 parts according to
Example 2 43 15 parts according to
Example 3 44 15 parts according to
Example 4 45 15 parts according to
Example 5 46 15 parts according to
Example 6 47 15 parts according to
Example 7 48 15 parts according to
Example 9 49 15 parts according to
Example 1

Example 50

The printing pastes obtained according to Examples 33 to 49 can be based on textile materials printed from polyester, cellulose triacetate, polyamide or polyacrylonitrile and dried and according to can be fixed using the usual methods on the individual fibers. If desired, oicsen printing pastes can be used further additives can be added for better fixation.

Example 51

It is possible to use the printing pastes obtained according to Examples 33 to 49 in order to achieve this in particular desired effects, such as levelness, dye bulge or running properties, to be mixed with one another, provided the thickeners in question allow this.

Example 52

100 parts of the dye preparation according to Example 8 are diluted with 150 parts of water and dissolved in 750 Parts of a thickening consisting of 60 parts of a 10% strength aqueous starch ether solution, 10 parts of glycerol, 17 parts of potash, 4 parts of water and 9 parts of sodium sulfoxylate, stirred in.

The printing ink obtained ^{in this way is printed using stencils on a cotton fabric weighing 120 g / m 2} , which has been pretreated in the normal way for printing, dried and then steamed for 10 minutes in the absence of air at 100 ° to 105 ° and then washed out. The result is a sharp, strongly colored print.

Example 53

The following preparation is provided: 30 parts of a locust bean gum derivative are mixed with 420 parts of water and stirred with a solution of 500 parts of water and 50 parts of starch ether. In 7 parts of this preparation, 1 part of the dye preparation according to Example 8, 1 part of water and 1 part of high-boiling mineral spirits are added under a high-speed stirrer and ^{printed onto a cellulose-viscose fabric with a basis weight of 250 g / m 2} using gravure rollers and dried. Then with an aqueous solution containing 40 parts of NaOH, 65 parts of sodium dithionite, 15 parts of borax and 880 parts of water, soaked, pressed to 100% weight gain and fixed in an air-free steamer for 35 seconds at 120 °, then cold and hot rinsed and dried. The result is a strong, sharp print with a yellow shade.

Example 54

150 parts of the dye preparation according to Example 8 are incorporated into 850 parts of a solution dispersion of thermoplastic bodies and applied to a coated paper by gravure printing. After drying and, if necessary, storage, the paper is pretreated under pressure for 2 to 10 seconds at 200 ° with a normal for printing Cotton fabric of 120 g / m ² basis weight brought into contact. The transferred dye is now fixed and finished analogously to the fixation in Example 53 using an NaOH-Na dithionite solution

Example 55

100 parts of the dye preparation of Example f are stirred into 900 parts of the formulation described below ^r i and after any printing method on a textile structure, which, applied from Natürli Chen, regenerated or fully synthetic Faserr may be made. After drying, it is treated in hot air for 5 to 10 minutes at 140 to 150 °. You get a print of deep nuance.
The preparation is made up as follows:
40 parts of water,

10 parts condensed Alkylpolyglykoläther and 30 parts of an aqueous climbing bean gum ether · ι ^r, solution were mixed, then

690 parts heavy gasoline (boiling range 120 to 180 °) incorporated into the express driver then

30 parts of a 30% aqueous diammonophosphate solution and finally

200 parts of a 40% synthetic resin dispersion aul added to the base of a self-crosslinking copolymer based on acrylate.

Example 56

50 parts of the dye preparation according to the examples 12 or 13 are stirred into 950 parts of water. Man add 7 parts of sodium acelai and foulade in

jo cotton fabric in this dispersion. Squeeze! to 70% liquid absorption, dries on a cylinder dryer at 110 °, developed by padding in an aqueous bath with 30 g / l sodium hydrosulfite and 60 g / l 10N sodium hydroxide solution, steams for 60 seconds

r> rinses, oxidizes, washes, soaps and dries the dye The result is a flat, calm blue coloration on both sides. Similar good results are also achieved after 2-phase printing process obtained.

Example 57

3 parts of a whitening agent formulation prepared according to Example 21 are converted into approx. 30,000 parts Water containing 30 parts of a fixing accelerator (nonionic Oxäthylierungsprodukt) introduced 1000 parts of a polyester staple fabric are used in the resulting liquor (liquor ratio 1:30) in one Dyeing machine that allows temperatures above 100 ° to be treated as follows:

The temperature of the liquor is driven to 120 ° within 30 minutes. The fabric is treated further at 120 ° for a further 30 minutes and the liquor is then cooled to 70 ° over the course of 10 minutes. The polyester fabric is rinsed cold and dried.

The fabric treated in this way has a

untreated fabric an increase in whiteness of 150 units of the CIBA-GEIGY white scale (see: CIBA-GEIGY Rundschau 1973/1, pages 10 to 25) .

Example 58

4 parts of a whitening agent formulation prepared according to Example 23 and 1 part of a commercially available one Wetting agent is stirred into 1000 parts of water. A piece is made with the padding liquor obtained in this way Polyester pile fabric padded in such a way that the liquor pick-up is 70% of the weight of the goods treated polyester piece is dried at 80 ° for 10 minutes and then in a thermo

fixis'aoparat thermofixieri for 30 seconds at 200 °. 5s shows an increase in whiteness of 160 units of the CIBA-GEIGY white scale.

Example 59

2 parts of a whitening agent formulation prepared according to Example 22 are dissolved in 30,000 parts of water, Contains 30 parts of a fixing accelerator (nonionic oxyethylation product) and ~ 45 parts of formic acid 85%, stirred in. 1000 parts of a polyacrylonitrile staple fabric are in the application liquor obtained at pH 3.5 (liquor ratio 1:30) according to Treated according to the following temperature profile: The temperature of the liquor is within 30 minutes to 97 ° elevated. The tissue is treated at this temperature for a further 30 minutes and then cooled to 70 ° within 10 minutes. The fabric is rinsed with cold water and dried.

The fabric treated in this way shows an increase in whiteness compared to the untreated fabric 120 units of the CIBA-GEIGY white scale.

Example 60

3 parts of a whitening agent formulation prepared according to Example 22 are dissolved in 30,000 parts of water, containing 90 parts of a commercially available reducing bleach, e.g. sodium dithionate, stirred in. 1000 Parts of a polyamide 66 woven tricot are used in the application liquor thus obtained (liquor ratio I: 30) treated according to the following temperature profile: The temperature of the liquor is within 30 minutes increased to 97 °. The tricot is treated at 07 ° for a further 30 minutes and then within Cooled to 70 ° for 10 minutes. The piece of woven tricot is rinsed cold and dried.

The woven tricot treated in this way has an increase in whiteness of 140 units of the CIBA-GEICY white scale.

Example 61

1500 parts of a copolymer containing 95% acrylonitrile and Contains 5% 2-vinylpyridine and has an average molecular weight of 47,000, are in 5500 parts Ethylene carbonate dissolved and the resulting solution filtered and vented. A Mixture of 2500 parts of ethylene carbonate and about 1000 parts of water, in which previously I part of a Brightener dispersion formulated according to Example 27 and 7.5 parts of oxalic acid were added and the mixture was homogenized has been added. The resulting spinning solution is then heated to 70 ° and with a Speed of 200 g / min. / Nozzle through spinnerets with 412 holes (0.0076 cm diameter) in one , Pressed precipitation bath, which contains a mixture of 75% water and 25% ethylene carbonate. The bath temperature is kept at 60 °, while the freshly formed fibrils through the bath to a length of 122 cm be pulled through. The coagulated cable will run out

κι the bath at a speed of 9.3 m / min, withdrawn and passed over two positively driven rollers, which are arranged outside of the bath and run at 9.4 m / min, or 44.5 m / min, so that the cable is stretched 4.8 times in the air

li will. The cable is then passed through a Sireckbad drawn, which contains water and 1 to 3% accumulated ethylene carbonate at a temperature of 100 °. The Spip.nkabe! is pulled through the bath for a distance of 63.5 cm, creating an additional stretch 1.64 times, so that a total stretch of 7.7 times is achieved. While relaxing the cable is then passed through a bath consisting essentially of water for a distance of 63.5 cm of 90 °. The resulting relaxed wet cable

2 ") is squeezed off at a speed of 66 m / min, Cut to the required stack length, finished and finally dried. The on this Way lightened with 0.33% o active substance of the optical brightener from Example 8 in the spinning mass

jo staple fiber is in contrast to the heavily yellowed untreated fiber pure white.

Example 62

A printing paste for rotary film printing on paper Γι is produced by 0.5 to 1 part of a according to Examples 20 or 21 formulated optical brightener Prediluted with about 9 parts of water and 90 parts of a stock thickening (6% aqueous solution of a Doughs made from mixed polymer based on maleic acid 4 (i can be stirred in. This printing paste of approx. 8000 cP is applied to paper in a desired pattern using a rotary film printing machine. That so Printed, dried paper can be used in the transfer process on polyester textiles (transfer printing • r, at approx. 210 ° for 30 seconds). That on the paper The printed pattern is after the transfer on the polyester textile material due to its pure white effect visible. The pattern is particularly effective in rooms that are illuminated by UV radiation.

Claims (11)

Patent claims: 1. Finely dispersed, flowable preparations, consisting of water, insoluble to sparingly soluble in water Dyes or optical brighteners, the particle size of which is smaller than 10 μ, an anion-active and a nonionic dispersant, a hydrotropic agent and, if necessary, conventional ones Additions, characterized in that these preparations are at least 10 percent by weight Water, at least 30 percent by weight of a finely dispersed water-insoluble to sparingly soluble Dye or optical brightener and a mixture consisting of 0.1 to 5 percent by weight an anion-active dispersant, with the exception of the dispersants used in FR-PS 21 98 983, 1 to 3 percent by weight of a nonionic dispersant and 5 to 20 percent by weight of a hydrotropic agent. 2. Preparations according to claim 1, characterized in that these 35 to 65 percent by weight, preferably contain 40 to 60 percent by weight of dye or optical brighteners. 3. Preparations according to claims 1 and 2, characterized in that they are used as in water insoluble to sparingly soluble dyes, base dyes for disperse dyes or vat dyes contain. 4. Preparations according to claim 1 and 2, characterized in that they contain base dyes for disperse dyes which, at atmospheric pressure between 150 and 220 ⁰ C < -indeslens 60%, pass into the vapor state in less than 60 seconds. 5. Preparations according to claims 1 to 4, characterized in that they are anion-active Dispersants Condensation products of aromatic sulfonic acids with formaldehyde, lignosulfonates or contain polyphosphates. 6. Preparations according to claims 1 to 4, characterized in that they are non-ionic Dispersants contain fatty alcohol polyglycol ethers, phenol ethers or ricinoleic acid esters. 7. Preparations according to claims 1 to 4, characterized in that they are used as hydrotropes Agent containing urea or dimethyl urea. 8. Process for the preparation of the aqueous preparations according to Claims 1 to 7, characterized in that characterized in that the dye or optical brightener in water with the addition of at least one of the said dispersants ground and the remaining components before, adds during or after the grinding process. 9. Use of the aqueous preparations according to Claims 1 to 7 for dyeing or printing or optical brightening of textile materials. 10. Use of the optical brightener preparations according to claims 1, 2 and 5 to 7 in the aqueous exhaust process on polyester, polyamide, Polyacrylonitrile, cellulose acetate, and cellulose triacetate materials or in the aqueous foulard thermal process on polyester materials, or in the spinning mass. 11. Use of the preparations according to claim 4 for transfer printing. Commercial forms of water-insoluble to sparingly soluble dyes or optical brighteners are known both as liquid brands and as powder brands. The latter have the disadvantage that they are before the application must first be dispersed in water; the former have the disadvantage that they have large amounts of dispersant, usually over 30 percent by weight, and little dye of the order of magnitude of about 20 percent by weight or optical ίο Contain brighteners of around 5 to 25 percent by weight. There was therefore a need, in particular for the preparation of printing pastes for printing on Carrier materials and their use in transfer printing to create a commercial form for dyes that are direct is usable and on the one hand a relatively small content of dispersant and on the other hand a has a high dye content, and which should also be low in electrolytes, in order to avoid the use of electrolyte-sensitive To make thickeners for the preparation of printing pastes more universal. Aqueous preparations of water-insoluble or sparingly soluble dyes or optical dyes have now been obtained Found brighteners that do not have the disadvantages shown. These new aqueous : ·) Preparations are dispersing agents, poor in electrolytes, stable, highly concentrated in the definition of dye or optical brightener, finely dispersed, flowable and contain water-insoluble to sparingly soluble dyes or optical brighteners, their particle size is smaller than 10 μ, in particular smaller than 2 μ. These preparations contain no less than 10 percent by weight and in particular 20 to 30 percent by weight of water, at least 30 percent by weight, in particular 35 to 65 percent by weight, preferably 40 to 60 i) Percent by weight, of a finely dispersed water-insoluble one to sparingly soluble dye or optical brightener and a mixture consisting of 0.1 to 5 Percent by weight, of an anionic dispersant, 1 to 3 percent by weight of a nonionic dispersant and 5 to 20 percent by weight of a hydrotropic agent and optionally others Additions. The subject matter of the invention is therefore the preparations according to claims 1 to 7, their production according to claim 8 and the use thereof according to the • 41 claims 9 to 11. The basic dyes for the disperse dyes are particularly suitable as water-insoluble to sparingly soluble dyes.
Chemically speaking, they are different -, «Dye classes, such as B. to nitro dyes, aminoketone dyes, Ketonimine dyes, methine dyes, nitrodiphenylamine dyes, quinoline dyes, aminonuphthoquinone dyes, Coumarin dyes and in particular An; hrnquinone dyes and azo dyes Yi fe, such as monoazo and disazo dyes. Vat dyes are also suitable. Typical representatives include B. following chemical Classes of: indigoid dyes; Anthraquinone dyes, including the anthrimides, anthraquinone bo acridone, anthraquinone thiazoles and anthraquinonylazines and finally derivatives of fused ring systems; Naphthalene dyes ·, perylene dyes; sulphurized carbazoles and quinone dyes. b> It goes without saying that the type of dye is within this given definition is largely determined by the field of use of these inventive aqueous Dye formats. Are these z. B. for preparation