DE1287085B - Emulsifiers for dye emulsions of the water-in-oil type - Google Patents

Description

cited patents recommended for this purpose 10 6 carbon atoms and one or two hydroxyls. It has been shown, however, that one can work for groups. Such hydroxyalkylamines are, for. B. Monojeden provided dye and for each dyeing or printing process a suitable emulsifier
can find that it does not work with one
certain emulsifier emulsions of any color 15
to produce substances that are sufficiently stable for all common types of application. A particular disadvantage is that not only for different ones
Different emulsifiers used in dye classes

ethanolamine, diethanolamine, monopropanolamine, di-isopropanolamine, methylüthanolamine, isobutanolamine.

The hydroxyalkylamines with up to 6 carbon atoms contained as components b) in the emulsifiers can be primary, secondary or tertiary. They preferably contain one to three hydroxyl groups. Hydroxyalkylamines, which are used as components b)

Preferred emulsifier mixtures contain 0.2 to 2 parts by weight per part by weight of component a) of components b).

The emulsifiers are used according to the invention in the preparation of dye emulsions of the water-in-oil type used in the same way as the emulsifiers previously used for this purpose. A way of working that has proven itself particularly well.

have to be, but that even come into consideration within a 20, z. B. monoethanolamine. Class only a limited number of dyes with diethanolamine, triethanolamine, diethanolethylamine, Isopropanolamine, di-isopropanolamine, isobutanol can be stably emulsified with a given emulsifier. As a result, it is not possible to use all dyes amine, methyl isobutanolamine. a class according to the same recipe to emul- The proportion of components a) and b)

yaw; In addition, the mixing of 25 emulsifiers often comes across as well in a fairly wide range of emulsions that contain various dyes. Area can be freely chosen. Very good results on difficulties if these emulsions are obtained with emulsifiers which had to be used for 1 part by weight of different emulsifiers. of components a) 0.2 to 10 parts by weight of it is therefore included for the practical applicability of component b), but also give smaller dye emulsions of the type mentioned of greater 3 ° or larger additions of component b) clearly importance, an emulsifier available to have better results than the pure components a). who is able to form emulsions with as many different types of dyestuffs as possible
remain stable for any application.

From US Pat. No. 1,890,158, Sprüh- 35
Preparations for the purposes of agriculture and
Horticulture is known to keep water and oil in the form
an emulsion, an insecticide or a germicide
Reaction product of a fatty acid and a
Amine and optionally contain free amine. From 4 °, the emulsifier in the volatile phase provided for the external existence of such emulsions but not off-phase of the emulsion is to be dissolved, in the case of dyestuff emulsions of the water-organic liquid and in this solution in-oil type the The difficulties explained above can be avoided with vigorous stirring, for example with one, because the high-speed stirrers during dyeing and printing, the aqueous dye preparation, the problems that arise with textiles are possibly also further additives, such as conventional preparations of the type mentioned, unknown with spraying. The emergency thickeners, alkaline substances, reducing agents for vat dyes, polyhydric alcohols and urea, contain, emulsify. It is advantageous to work in such a way that the ready-to-use dye emulsion contains 0.3 to 15 percent by weight of component a) of the emulsifier and 5 to 25 percent by weight of a volatile, water-insoluble organic liquid. This can also be achieved by first preparing a concentrated acid residue and b) hydroxyalkylamines with up to 55 parent emulsions, which are only used immediately before 6 carbon atoms as emulsifiers for dyes to the desired concentration

is diluted.

When using the emulsifiers for their intended purpose, be for the outer phase any volatile organic liquids boiling between 60 and 220 ° C are used in a known manner; these should not be miscible with water under the conditions of emulsion production. In addition include aliphatic hydrocarbons, such as gasoline,

Stearic acid, called oleic acid. You can also use the ^f> 5 petroleum fractions, or even straight-chain or mixtures of several acids, which arise in the case of branched-chain aliphatic hydrocarbons, such as the synthesis of monocarboxylic acids, or such as hexanes, heptanes, octanes, nonanes, decanes and they are obtained from natural fats. In Undekane. Aro-

Agility to process a wide variety of dyes using the same methods and often together, has no counterpart in the field of crop protection.

It has now been found that the difficulties mentioned can be avoided by using mixtures from a) Hydroxyalkylamides of aliphatic monocarboxylic acids with 16 to 19 carbon atoms in

emulsions of the water-in-oil type are used, the fiber-affine dye being dissolved in the aqueous phase or is dispersed and the outer phase consists of volatile, water-insoluble liquids.

The aliphatic monocarboxylic acids on which components a) are based can be straight-chain or branched, saturated or unsaturated. Examples are palmitic acid, margaric acid,

matic hydrocarbons, namely, besides benzene, also alkylbenzenes, such as toluene, ethylene benzene, dimethylbenzenes and trimethylbenzene. Furthermore, cycloaliphatic hydrocarbons can also be used be e.g. B. cyclohexane and hydrogenated naphthalenes such as tetrahydronaphthalene and decahydronaphthalene. For practical reasons, one can preferably use commercially available hydrocarbon mixtures use, such as petroleum ether, gasoline. Kerosene, commercial heavy gasoline, such as solvent naphtha (Mixture of aliphatic and alkylatable aromatic hydrocarbons with a boiling point of 130 to 190 C), and White Spirit (mixture of aliphatic hydrocarbons with a boiling range of 120 to 160 ° C) or Commercially available hydrocarbon mixtures consisting of these two types of gasoline. Re-usable Organic liquids are halogenated hydrocarbons that boil within the specified boiling range, such as carbon tetrachloride, di-, tri- and tetrachloroethane and monochlorobenzene. In the end Dipentes, terpenes and oxygenated solvents such as ketones and ethers also come in Consideration. Examples are methyl isobutyl ketone, mesityl oxide, diacetone alcohol, methylcyclohexanone and isopropyl ether.

When using emulsifiers for dye emulsions, all dyes that are used for dyeing used by textiles and fixed on the fiber during the dyeing process due to their affinity are used to produce the emulsions. However, pigment dyes do not come in Consider that these can only be fixed on the fiber with film-forming agents and the emulsions of the The species considered here do not contain any film-forming substances. As examples of suitable classes of dyes may be mentioned: vat dyes, sulfur dyes, carbazole dyes, acidic dyes. Disperse dyes, Metal complex dyes, developing dyes and reactive dyes.

The use according to the invention of the emulsifiers has in comparison to that of the known emulsifiers for dye emulsions of the water-in-oil type the advantage that they make it possible is to bring a large number of different types of dyes into stable emulsions without the emulsifier to have to change. Therefore, you can now search for the individual links in a range of dyes Process and apply a basic recipe that is favorable to all of them.

The parts and percentages given in the examples are weight units.

example 1

An emulsifier consists of 15 parts of oleic acid monoethanolamide and 10 parts of triethanolamine.

A dye emulsion is prepared with it by dissolving 25 parts of the emulsifier in 70 parts of a gasoline with a boiling range between 160 and 200 ¹ ^ C and a dispersion of 8 parts of the dye 1 - amino - 4 - in this solution with a high speed stirrer. cyclohexylaminoanthraquinone-2-carboxamide emulsified in 897 parts of water.

Example 2

from 25 parts of linseed oil grease-5 parts of di-isopropanol-

There is an emulsifier
acid diethanolamide and
amine.

You can use it to make a dye emulsion in the following way: 30 parts of the emulsifier are dissolved in 60 parts of the gasoline mentioned in Example 1. In addition, you solve in 500 parts Water 30 parts of a reactive dye of the formula

N = N -

NH - CO - CH ₂ - CH ₂ - Cl

150 parts of urea, 30 parts of anhydrous sodium carbonate and 200 parts of a 3% commercial alginate thickener. The aqueous solution is poured into the gasoline solution with rapid stirring and stir until the aqueous phase emulsifies in a stable manner is.

Example 3

An emulsifier consists of 25 parts of tallow fatty acid isopropanolamide and 40 parts of triethanolamine.

To produce a dye pulse, one dissolves 65 parts of the emulsifier in 80 parts de :; in Example 1 mentioned gasoline and emulsified in this solution According to the procedure of Example 2, an aqueous dye preparation consisting of 25 parts a 5% locust bean gum ether thickening. 125 parts of a 1 ()% strength aqueous starch ether solution, 20 parts of the finely dispersed dye C.I. Vat Green I (Color Index. 2. Annage, 1956, 59 825) and 585 parts of water.

Example 4

An emulsifier consists of 30 parts of oleic acid diethanolamide and 60 parts of diethanolamine.

90 parts of the emulsifier are dissolved in 70 parts of the gasoline mentioned in Example 1. It also solves 150 parts of a commercially available 20% dough formulation of 4,4'-dimethyl-5,6,7'-trichlorothioindigo, 200 parts of a 10% starch ether thickener, 80 parts of sodium formaldehyde sulfoxylate and 10 parts Potassium carbonate in 310 parts of water. The aqueous solution is emulsified as described in the example 2 in the gasoline solution.

Claims (1)

Claim: Use of mixtures of a) hydroxyalkylamides of aliphatic monocarboxylic acids with 16 to 19 carbon atoms in the acid residue or monocarboxylic acid mixtures used in the synthesis this or arise from natural fats, these mixtures with monocarboxylic acids less than 16 or even more than 19 carbon atoms in the acid residue in a minor amount may contain, and b) hydroxyalkylamines with up to 6 carbon atoms as emulsifiers for dye emulsions of the water-in-oil type, whereby the dye is dissolved in the aqueous phase and the outer phase consists of volatile water- ' insoluble liquids.