DE2214068C3 - Process for dyeing textile materials made from polyurethane fibers, synthetic polyamide fibers or from animal or animalized fibers with the use of organic solvents - Google Patents

Description

The dyeing of polyurethane, synthetic polyamide and animal fibers with various water-soluble dyes, such as acid dyes, metal complex dyes, nouns Dyes, reactive dyes, etc., from aqueous liquors has long been known and is in the Textile industry has been practicing successfully for some time using known methods

On the other hand, the dyeing of textile articles from organic solvents has been described for a long time, as can be seen, for example, from the following references: In the German patent specification 2 27 648 from 1908 it is already mentioned that natural fibers of vegetable and animal origin are made from dyes of different categories organic solvents can be colored by the exhaustion method, with clear dye solutions consisting of mixtures of alcohols with solvents commonly used in chemical laundry, such as hydrocarbons, carbon tetrachloride and the like, these mixtures additionally containing esters or substances with acidic groups or aromatic acids are added and the dye liquor is expediently heated to achieve a clear solution and an increased color effect. It is understandable that the description of this patent could only cover the fibers known at the time.

About the dyeing of synthetic fibers, first of all cellulose acetate fibers, with suitable ones Dyes from organic solvents can be found a few years later, for example from 1926 in British patents 2,822,036, 3,08,173, 3,13,450.3 13,451.3 14,208 and other intellectual property rights. In the literature of the last few years, the dyeing of the most varied types of fibers becomes practical all classes of dyes made from organic solvents are reported in great detail (see e.g. Bayer Farben Revue, Special issue 13, "ITMA Paris 1971", published by Farbenfabriken Bayer AG, Leverkusen).

It has now been found that when dyeing polyurethane fibers, synthetic polyamide fibers, animalisLiien or animalized fibers after an exhaust process show remarkable results on the exhaustion of the dye baths, the fastness properties and the levelness of the dyeings, the duration of the The dyeing process and the energy input can then be achieved if from liquors of organic Solvent mixtures are dyed, which contain an optimal proportion of water for the dyeing process.

The present invention relates to a process for dyeing textile material made from polyurethane fibers, synthetic polyamide fibers or from animal or animalized fibers or from Mixtures containing these fibers with water-soluble dyes with the use of organic ones Solvents according to the pull-out method, characterized in that one is on the goods dye liquor containing dissolved dye, which is a

, omogenic, ternary system which consists of water and an Irish solvent or solvent mixture which does not dissolve the dye, _where the water content to the fiber is in a liquor ratio in the range from 0.01: 1 to 0.4: 1 and which plus dye-dissolving Organic solvents contain their proportion by volume, based on the weight of the goods, between 005 and 10 times, preferably between 01 and 3 times, at temperatures above the freezing points and below the boiling points of the components present in the system mentioned or themselves optionally forming azeotropes therefrom is allowed to act

The fact that some in the dyeing of organic solvents _J. The amount of water used is already known per se. which result in uneven dyeing, _etc. If, in the previous processes, water was necessary for dyeing, it caused great problems, especially in practice.

The difficulties explained above, which negatively influence the dyeing result, can be eliminated immediately if, according to the method according to the invention, one has an optimal water content in the dyebath which must be dimensioned so that the entire dyeing system represents a uniform homogeneous solution. In this case, however, it was found that that, when a particular menee water _meters for example, as fiber moisture available to the system is a certain amount of organic solvent-farbstofflösendrs added, are made possible in the shortest time optimal staining results at room temperature.

A certain dyeing temperature that is assigned to such a system provides additional security that there are no phase separations, non-rub-proof or undrawn dye baths the amount of water is too high The same applies to GB-PS12 76 225.

Compared to DT-OS 19 37 029 it was surprising that you can do without acetic acid

According to the present invention, ternary systems are used as dyebaths that are more homogeneous Form present and which water as well as the dye non-dissolving organic solvents and still Dye-dissolving organic dye-dissolving agents that ensure uniform distribution of the water in the dyeing system Contain solvents, the latter preferably having dye-dissolving properties.

The following coloring media which can be used according to the process may be mentioned, for example:

(Methylene chloride) - (methanol) - (water),

(ChloroformHMet & anolHWater),

(Tetrachloroethane / ethanol / water),

(Fluorotrichloromethane) - (methanol-

Isopropanol / water),

(1,1,1 -TrichloräthanMMethanolHWasser),

(1,1,1 -TrichlorethaneHethanolHwater),

(1,1,2,2-tetrachloroethane, ethanol-

I sopropanol) - (water),

(Trifluorotrichloroethane methylene chloride) -

(Methanol / water),
(TricWoräthylenHMethanol-Isopropanol) -

(Water),
(Tetrachlorethylene-methanol-water),

(Tetrachlorethylene-ethanol-water), (TetrachlorethyleneHMethanol-Ethanol) -

(Water),
(Tetrachlorethylene-butanol-water),

(TetrachlorethyleneHMethanol-Butanol) - (Water),
(Tetrachlorethylene / isopropanol / water),

(TetrachlorethyleneHMethanol-Isopropanol) -

(Water),
(Tetrachlorethylene) - (methanol-ethanol-

Isopropanol) - (water).

The proportion of water in the dyeing system, expressed as the liquor ratio to the fiber, is generally between 1: 0.01 and 1: 0.4 (fiber to water); - ■ ^j- - ci «» * £ »n« *. Rhaltni <; at the

aqueous nouen nci and much more .. ",." "._ ..

ratio «fiber to water are spoken of.

It is known from the German Färberkalender 1972 (Eder-Verlag), p. 163 and 164, that a certain amount of water is essential and that in principle the water can be replaced by polar solvents which are miscible with perchlorethylene, but this refers to - <- - η ~ «""""» _e Pärhp method with a

Colorings v, «* .. _o ---"

comes. between 1: u, ui unu ι. «, τ _ν . """. -

Since the amount of water used is essential for the 45, this liquor ratio is preferably at The dyeing result should be between 1: 0.02 to required process, as it is done by the dye works in 1: 0.2, when dyeing synthetic polyamide fibers aqueous liquors is known from a »liquor between 1: 0.03 and 1: 0.2 and when dyeing

¹ '- animal or animalized fibers between

1: 0.05 and 1: 0.25. The small amount of water between these liquor ratios mentioned 1: 0.01 to 1: 0.4 means to the practical implementation of the process

aas w aaat. u _u ....., rens related that both the natural moisture

re can replace solvents, however, this refers to the fiber as well as those in the commercial ones only on the a. a. O. mentioned dyeing process with an organic solvent already dissolved Water-in-perchlorethylene emulsion system, with the amount of water used in the preparation of the dye bath the dye bath 20 to 30 cmVl of water, something organic must be taken into account; d. H. aiso that example acid and contains an emulsifier (see loc. Cit, p. 164, wise when dyeing textile material with less Lines 17 to 30, p. 163.2. Paragraph, 2nd sentence, in connection with fiber moisture or in an overdried form with p. 162, last paragraph, to p. 163, lines Ibis 4). From the dye bath for optimal results However, this prior art could not have to be added to water that ideally the

. * "C ..". " _mo , ",. Kpctimm- natural moisture of the fiber which with regard to

optimal results represents the most favorable amount of water or that with very high fiber moisture a part of the in

Solvent - η.- ... j 65 of the water contained in the fiber before the start of dyeing

ethylene - behave particularly favorably. It could either have to be removed or it could be used together rather be expected that the polar solvent settlement of the staining system, the percentages of the ! Water acts and thus indirectly affects or contributes to other solvent components for good results

this state of lecnnin nuiuih, jvuw ,. .

be concluded that ternary systems from certain amounts of water, a polar solvent - like Alcohol - and a solvent that does not dissolve the dye - such as methylene chloride or perchlorethylene - behave particularly favorably. It could

^J - JO Ί · * « n / -ilaro 1 ftsiinostnittel

must be taken into account when carrying out the dyeing process.

The proportions of the components in the ternary Dye system behave towards the fiber as follows:.

1st component (= water): ratio of fiber to water = 1: 0.01 to 1: 0.4 (preferred ranges see above);

2nd component (= non-dissolving organic dye Solvent or solvent mixture): The ratio of fiber to the second component corresponds roughly to that of the apparatus conditionally possible total liquor ratio and is thus practically between 1: 3 and 1: 100, preferably between 1:10 and 1:30, with the proportion of this component in the overall system at least 70 percent by volume, is preferably at least 90 percent by volume;

3. Component (= dye-dissolving or 'sorgendes for optimal distribution of water of organic solvent or solvent mixture): Verhälfiis fiber for component 3. .0,05 = 1 to 1:10, preferably 1: 0 _f l to 1: 3.

As mentioned before, it is - for the best possible To create conditions for the dyeing process according to the invention - absolutely necessary to increase the fiber moisture and possibly to increase the amount of water brought into the dyebath with the fiber or also to humiliate. For each different type of the fibers mentioned or for different moisture contents fibers containing fibers must therefore be sought for optimal dyeing conditions. This can be done in to a certain extent through temperature control, but primarily through the addition the third component mentioned in the ternary systems, which makes it possible due to the fiber dehydrating or partially dehydrating properties of these preferably alcoholic solvents to create optimal conditions for the dyeing process.

In a special embodiment of the dyeing process according to the invention, these optimal conditions are achieved by brief pretreatment in a pretreatment bath that is the same or at least very similar to the dyebath: In practical terms, this measure means that the pretreatment sets the optimal liquor ratio of fiber to as water for the dyebath is that if the amount of water from the fiber moisture is too low, water is added to the pretreatment bath until the optimum amount is reached. The pretreatment bath is then used as a dye bath, so this also applies in the event that the optimum amount of water is already brought into the pretreatment bath with the fiber and no further addition of water is necessary.

If, on the other hand, the fiber moisture is too high, which is noticeable in a more or less strong clouding of the pretreatment bath, the pretreatment bath is either only partially used for the later dye bath, or the amount of third, mostly alcoholic component is increased, where- f> o can be kept in the system by a higher amount of water. However, there are limits to this increase in the proportion of the third solvent component with regard to the implementation of the dyeing process, because as the proportion of this fts component in the ternary dyeing system increases, the dyeing temperature in the dyebath must be increased to the same extent in order to achieve the same results with regard to the degree of exhaustion To achieve dye bath. However, this also means that in a process which is of interest in practice, the proportions of the third solvent component must be within the limits given above. Another possibility of creating ideal conditions for the dyeing process is provided by the temperature control itself. Thus, for example, a disruptive excess of water, which is usually noticeable in the pretreatment or in the dye bath as turbidity, can be eliminated by a slight increase in temperature, and optimal conditions for carrying out the process can thus also be set. The temperature increase is henceforth also represent a decisive factor for the rate of dyeing, with an increase in temperature in the sense of the present invention, a difference 20 to 30 ⁰ C (animal or animalisierte fibers: 30 to 40 ⁰ C) can already be considered to be maximum; in most cases, the desired results can already by an increase of temperature by 3 to 10 ⁰ C (animal or animalisierte fibers: 10 to 20 ° C) achieved.

According to the claimed process, the dyes can be commercially or technically pure Foim in all concentrations as a powder, paste or Solutions are added to the staining system.

The potential for the new process, depending on the class of dyes, dyeing temperature is generally between 0 and 8O ⁰ C, and in the case of polyurethane and synthetic polyamide fibers, preferably at a temperature of 10 to 60 ° C, in the case of animal or animalized Fibers is preferably worked at a temperature of 40 to 70 ° C. The process can be carried out under normal pressure, but if suitable equipment is available, it can also be carried out under overpressure.

The dyeing time can be controlled so that depending on the dye, fiber type and dyeing system used in the generally 5 to 90 minutes are sufficient; preferably 10 to 30 minutes for polyurethane and synthetic polyamide fibers and 20 to 60 minutes for animal or animalized fibers.

Suitable dyes for use in the claimed process are those types which are used for dyeing the the fibers concerned are known from an aqueous medium; this includes organic compounds that Water-solubilizing groups contain and which ones For example, they belong to the dye classes listed below:

Mono-, dis- and polyazo dyes, anthraquinone, oxazine, phthalocyanine and methine dyes, 1: 1- or 1: 2 metal complex dyes, dispersed metal complex dyes, asymmetric metal complex dyes and reactive dyes of those described below Reactive systems:

Halotriazine, halopyrimidines

Haloquinoxaline carbonyl,

Halophthalazine carbonyl, vinyl sulfone,

j9-Hydroxäthylsulfonester-,

Methylsulfonyl benzothiazole, fluorobenzothiazole,

ß-Hydroxäthylsulfonamid-Ester-,

jS-Hydroxäthylsulfonylalkylaminoester,

jS-bromoacryloyl-.jS-chloropropionyl-,

jfJ-chloroacetyl-.ji-phenylsulfonylpropionyl-,

Halopyridazone alkyl,

2-chlorobenzothiazolesulfonyl,

Alkylsulfonyl-pyrimidine-, ammoniumtriazine- and Acryloyl groups

or those residues that can be converted into these groups. Furthermore, according to the procedure, Place of dyes in the visible Bcr-icn absorb, those used in the UV range absorb, i.e. optical brighteners of an anionic character such as stilbene, benzoazole, Coumarin and acrylpyrazoline derivatives. '

As textile materials come for the implementation According to the present invention, those made from polyurethane fibers of various origins are preferred, preferably Elastomer threads, which can be in pure form or wound with other fibers. From the series of suitable synthetic polyamide fibers are, for example, polyamide 6 (ε-caprolactam) poly_ amide 6,6 (hexamethylenediamine-adipic acid), polyamide 6,6,6 (copolymer of hexamethylenediamine. adipic acid and ε-caprolactam), polyamide 6.10 (hexame-uiylenediamine-sebacic acid), Polyamide 11 (aminoundecanoic acid) as well as the fiber types mainly used in the different dyeing technique. In the end can be applied to animal or animalized fibers such as wool according to the claimed process (of various origins), natural silk or casein fibers achieve excellent colors. This Fibers or mixtures of these fibers can be processed in the form of flakes, slivers, cables Threads, yarns. Tissue. Knitted floor coverings or fleeces are present. The materials can also already be in ready-made state colored werferu such as Sweaters, socks, stockings or tights

^Se in the examples below ^ pull the percentages for the dyes used on the weight of dry fiber. The fiber moisture in percent by weight was also determined.

example 1

10 g of polyurethane threads with a fiber moisture content of f, 5o / o are 6 ecm of methanol, 0.3 ecm of water and 194 m perchorium

ethylene. ^{in which 0.5} <> / o of the _{dye K} ^Ac i? t _P dyes "CL No. 17 070 are dissolved, dyed for 20 minutes at 40 ° C. After dyeing, the goods are spun off and dried. A red dyeing is obtained, whose depth of color corresponds to that of such a color made from water

Example 2 Example 3

5 g of an elastomer knitted fabric (polyurethane threads wound with polyamide threads) with fiber moisture

of 3.5% are in a solution consisting of 3 ecm methanol and 97 ecm perchlorethylene, in which 0.5% of the dye Acid Yellow 41 - CL no. 19 025 and 0.1% of the dye Acid Blue 41 - CI no. 62 130 are dissolved, ^{stained at 45 °} C. for 40 minutes.

ίο After dyeing, the goods are spun off, in Rinsed and dried perchlorethylene. A true green color is obtained on both types of fiber.

Example 4

5 g of polyurethane threads are mixed with the 1: 2 chromium complex compound of the dye of the formula

colored as described in Example 2. A yellow coloration is obtained on the goods good fastness properties.

Example 5

The fiber material and the dyeing conditions are the same as described in Example 2, one used however, instead of the dye explained there, 0.3% of an optical brightener of the formula is used here

H ₂ N

CH =

"Ί

SO ₃ H

SO ₃ H

The fiber material is obtained optically brightened.

5 g of polyurethanes with a 2% are in a solution of 9 5ccm methanol and 0.3ccm W »W» g * 40-C pretreated The pretreatment god then drained to 70% and through a solution consisting of 97Sn PerÄrifte »and 3cm Methanol in the 0.5% of the Acid Blue 40 dye CL no. 62125 is solved, replaced *. Maiifljt that Fiber materials in this liquor are 30 ° C at 40 ° C

After the coloring, the goods are thrown off ^ d rinsed in cold Fercbiethylene blue colouration, formed by enter of water produced Firbrag does not differ Example 6 10 g of polyamide 6 yarn are conditioned to 4% fiber moisture and in this state for 20 minutes Dyed at room temperature in a dyebath containing 0.03 g (= 03%) of the dye Acid Blue 41 - CL no. 62 130, Contains 6 ecm of methanol and 194 ecm of perchlorethylene.

After dyeing, the yarn is rinsed cold for 2 minutes with a mixture of 197 ecm perchlorethylene and 3 ecm methanol, spun off and dried.
, Example 7

10 g of polyamide 6 yarn (Nm 20/3, dtex 2.7 / 60 mm, matt), with a fiber moisture content of 3.5%, are put in a dye bath consisting of 6 ecm MeihaaoT and 194 ecm perchlorate in the 0% of the dye Acid Red 42 - CL no. 17,070 are dissolved, W Minfiten at 40 ⁰ C dyed

After dyeing, the goods are thrown off raid dried A red firbang is obtained, whose

10

Color depth that corresponds to such a color made from water.

Example 8

20 g crimped yarn made from textured polyamide 6.6 threads (dtex. 100/26 2, matt) with a fiber moisture content of 4.0%, are in a liquor of 388 ecm Perchlorethylene and 12 ecm of ethanol, in which 0.5% of the in Example 6 mentioned dye are dissolved, first treated for 20 minutes at 25 ° C, then the The dye bath is heated to 45 ° C. and the fiber material is dyed at this temperature for a further 40 minutes.

After the dyebath has been drained off, the goods are ^{rinsed in perchlorethylene at 30 °} C., spun off and dried. A blue dyeing is obtained, the fastness properties of which correspond to those of dyeing from an aqueous medium.

Example 9

10 g of polyamide 6 yarn (Nm 20/3, dtex. 2.7 / 60 mm, matt) with a fiber moisture of 3.5% are in a liquor consisting of 94 ecm perchlorethylene and 6 ecm methanol, in the 1st % of said dye in example 6 are dissolved, dyed for 10 minutes at 35 ⁰ C, then continuously further 150 cc of perchlorethylene are added within 10 minutes. The fiber material is then dyed for a further 10 minutes at this temperature.

After dyeing, the goods are spun off and dried. A blue coloration with good results is obtained Authenticity properties.

Example 10

5 g of polyamide 6 yarn (Nm 20/3, dtex. 2.7 / mm 60, matt) having a fiber moisture of 5% in a solution of 95 cc of perchlorethylene and 5 cc of methanol for 10 minutes at 30 ⁰ C pretreated This pretreatment liquor is then drained to 70% and replaced by a solution consisting of 97 ecm perchlorethylene and 3 ecm methanol in which 0.5% of the dye Acid Blue 40 - Eq. 62 125 are dissolved, and it is stained at 25 ° C for 45 minutes

After dyeing, the fabric is centrifuged, dried, and - contrary to the aforementioned examples - 10 minutes at 40 ⁰ C in an aqueous solution of 1 g / of the reaction product l of 1 mol of nonylphenol with 6 moles of ethylene oxide post-treated to give a blue coloring which does not differ from a dye made from water

Example 11

41 - GI no. 19 025 and 0.3% of the dye of the formula

NO,

SO ₃ Na

are resolved, treated. The coloring is commenced at 2O ⁰ C and the temperature is raised over 20 minutes at 40 ° C. Thereafter, the dyeing bath is dropped and the coloration-treated for 5 minutes in a solution of 40 cc of ethanol and 1960, ecm perchlorethylene at 3O ⁰ C. The aftertreatment bath is then drained off and the carpet dried.

The two types of carpet yarn are obtained differently, corresponding to an aqueous dye colored, creating a pattern in the carpet.

Example 12

5 g of a polyamide 6 yarn (Nm20 / 3, dtex. 2.7 / 60 mm, matt) with a fiber moisture content of 3.5% are in a liquor consisting of 3 ecm methanol and 97 ecm perchlorethylene, in the 0 , 3% of the dye Acid Red 52 - CI.-Nr. 45 100 are dissolved, ^{stained at 40 °} C. for 60 minutes.

After dyeing, the goods are spun off and dried. A brilliant, fluorescent one is obtained red dyeing with the fastness properties appropriate for this dye.

Example 13

5 g of a polyamide yarn as in Example 12 are dyed as described there, but is used as the dye here the 1: 2 chromium complex compound of the dye of the formula

100 g of a polyamide carpet, consisting of jute backing and polyamide 6,6 carpet yarn, type 845 (light dyeing) and polyamide carpet yarn, type 847 (deep &> used dyeing) from E. L DuPont de Neinonrs & Ca, Inc, Wilmington, DEL / USA, properties with its natural fiber, moisture are 19 minutes at 40 ⁰ C in a laösung ans 40 cc of methanol, and 1960 cc of perchlorethylene pretreated After removal of this Vbrbe- 65 ribbon development bath is then the fiber Mate Risi in a fresh liquor of 100ccm metharol and 1900can perchlorethylene, in which 0.3% of the dye acid yellow

Example 14

pas fiber material and color conditions are those same as described in Example 12 used

11 12

however, instead of the dye mentioned there, here the products with the formula

OCH.,

N = N

SO ₅ -CH ₂ -CH ₂ -O-SO ₃ Na

^ VX-N = N- <f V-SO ₂ -CH ₂ -CH ₂ -O-SO ₃ H

SO ₃ Na

In case a) a red coloration is obtained and in case b) a bordeaux red coloration.

Example 15

The fiber material and the dyeing conditions are the same as described in Example 12, one used however, instead of the dye mentioned there, 0.3% of the dye Direct Yellow 12 - CL no. 24 895.

A yellow color is obtained on the goods.

Example 16

The fiber material and the dyeing conditions are the same as described in Example 12, one used however, instead of the dye explained there, 0.3% of an optical brightener of the formula is used here

H ₁ N

-CH = CH

NH ₂

SO, H

SO ₁ H

The fiber material is obtained optically brightened

Example 17

10 g of textured nylon 11 yarn having a fiber moisture of 13% is treated in a mixture of 0.2 cc of water, 4 cc of methanol and 196 cc of perchlorethylene for 10 minutes at 45 ⁰ C. Thereafter, this bath, 0.05 gdes Add dye Blue 41 - Ci no. 62 130, dissolved in 8 ecm of methanol, added and the material dyed for 15 minutes at 45 ° C. The yarn is then rinsed cold with a mixture of perchlorethylene with 2 percent by volume of methanol, centrifuged and dried. .

A level dyeing is obtained whose fastness properties are those of an aqueous liquor produced Color match.

Similar results can be obtained if a yarn made of polyamide 3 fibers is used on the above-mentioned text material .

of the dye Acid Red 42 - CL No. 17 070 are resolved, Stained for 40 minutes at 55 ° C

After dyeing, the goods are spun off and dried. A red dyeing is obtained, its Color depth that corresponds to such a color made from water

Example 19

20 g wool yarn with a fiber moisture content of 15.0% are in a solution of 360 ecm perchlorethylene and 40 ecm ethanol, in which 0.25% of the dye acid

Blue 41 - CL No. 62 130 are solved, initially 20 Treated minutes at 25 ⁰ C, then the dye bath

heated to 70 ⁰ C, and the goods are another 60

Stained for minutes at this temperature After draining the dyebath, the dyed

Wool yarn rinsed in perchlorethylene at 30 ^° C., spun off and dried. A blue dyeing is obtained, the fastness properties of which correspond to those of dyeing from an aqueous medium.

Example 20

5 g wool flannel having a fiber moisture of 15% in a 95 cc Lösuing from perchlorethylene and 5 cc of methanol for 10 minutes at 30 ⁰ C pretreated This pretreatment liquor is discharged to 80%

and by a fresh liquor consisting of 96 ecm Perchlorethylene and 4 ecm of methanol, in which 03% of the dye Add Blue 40 - CL no. 62 125 are solved, The goods are then dyed at 38 ° C for 45 minutes in this bath

ss After dyeing, the fiber material is stripped off, dried and - contrary to the aforementioned Examples - 10 minutes at 40 ° C. in an aqueous solution of 1 g / l of the reaction product of 1 mol Post-treated nonylphenol with 6 moles of ethylene oxide

A blue color is obtained, which differs from a carrion Water-hardened coloring does not differ

Example 21

18th

example

10 g wool gabardine nrit with a fiber content of 15% graze in a color bath, consisting of 10 ecm Methanol and 190 ecm PercMoräAylen. in the 6 * 6% 5 g of a wool game nut emer r aserreucaugKcu of _6s 15% are dissolved in a liquor consisting of aasi4ccm methanol and 96ccm Perdndrathyfen, with the 02% / es dye Acid Red52 - CJ.-No.4S 100smd, 6 &

After dyeing, the goods are spun off and dried. A brilliant, fluorescent one is obtained red dyeing with the fastness properties appropriate for this dye.

Example 22

5 g of a wool yarn according to Example 21 are dyed as described there, but as Dye here the 1: 2 chromium complex compound of the dye of the formula

used.

(HO-H ₂ CH ₂ C) ₂ -C

C-HN

NaO ₃ S

N N

HN

A yellow dyeing with very good fastness properties is obtained.

Example 23

a) 5 g of a silk yarn with a fiber moisture of 7% are in a liquor of 5 ecm of methanol, 1 ecm isopropano! and 94 ecm perchlorethylene, in the 0.4% of the dye Acid Blue 40 - C.I. 62 125 are dissolved, stained for 60 minutes at 55 ° C.

After dyeing, the goods are spun off with perchlorethylene to which 1% isopropanol has been added, rinsed, spun off again and dried. A blue dyeing with good fastness properties is obtained.

b) The dyeing is carried out as described in Example 23a), but used instead of silk yarn here casein fibers. A blue color is obtained.

Example 24

The fiber material is 5 g of bleached woolen yarn, and the dyeing conditions are the same as in the example 21 described. However, instead of the dye explained there, 0.05% of an optical one is used here Brighteners of the formula

CH = CH

-NH-C

CN (CH ₂ -CH ₂ -OH) ₂

SO ₁ Na SO ₃ Na

N N

NH-V \ - SO ₃ Na

The fiber material is obtained optically brightened.

Claims (10)

Patent claims: 1. Process for dyeing textile material made of polyurethane fibers, synthetic polyamide fibers or from animal or animalized fibers or from mixtures containing these fibers with water-soluble dyes with the use of organic solvents according to the extraction method, characterized in that one contains the dissolved dye on the goods de dye liquor, which is a homogeneous, ternary system, which consists of water and one of the Dye non-dissolving organic solvent or solvent mixture consists, the water-> s proportion to the fiber in a "liquor ratio" in the range from 0.01: 1 to 0.4: 1, and which one plus dye-dissolving organic solvents, their proportion by volume, based on the amount of goods by weight, between 0.05 and 10 times, preferably between 0.1 and is 3 times, at temperatures above the freezing point and below the boiling point the components present in the system mentioned or, if applicable, derived therefrom forming azeotropes is allowed to act 2. The method according to claim 1, characterized in that when dyeing polyurethane fibers <the liquor ratio of water to fiber is in the range from 0.02: 1 to 0.2: 1 3. The method according to claim 1, characterized in that when dyeing synthetic Polyamide fibers the liquor ratio of water to fiber is in the range from 0.03: 1 to 0.2: 1. 4. The method according to claim 1, characterized in that that when dyeing animal or animalized fibers the liquor ratio of Water to fiber is in the range of 0.05: 1 to 0.25: 1 5. The method 4iach claims 1 to 4, characterized characterized in that the liquor ratio of water to fiber by a pretreatment of the to coloring textile material is created with the dye-free solvent system and then this pretreatment liquor wholly or partially forms the basis for the dye liquor. 6. The method according to claims 1 to 5, characterized in that the degree of exhaustion and the Drawing up speed (dyeing time) in any pretreatment process carried out and / or influenced in the dyeing process by a change in temperature. 7. The method according to claims 1 to b. characterized in that the dyeing temperature between 0 and 8O ⁰ C. 8. The method according to claims 1 to 7, characterized in that the dyeing time between 5 and 90 Minutes. 9. Process according to Claims 1 to 8, characterized in that the dyes are commercially available or technically pure form in all concentrations as powders, pastes or solutions Staining system can be added. 10. The method according to claim 9, characterized in that that instead of dyes which absorb in the visible range, such is used that absorb in the UV range, i.e. O-table brighteners. U. The method according to claims 1 to 10, characterized in that with other fibers wound around Elastomer threads based on polyurethane can be colored or optically lightened.