DE2128834C3 - Process for creating multicolor effects on natural and synthetic polyamide fiber material - Google Patents

Description

AD- (BD) ₁₁ -A

(III)

has, in which A is a group of the formula —NH-CO — R (I)

in the R either

-C = CH ₂

EIr

-CH-CH ₂ Br Br

means, or, when η = 1, B = —CH — CH- and D =

SO ₃ H

is also a group of the formula F.
C.
N C-Cl

il I

- NH-C C-F

(M)

B the direct bond, or the bridge link -CH = CH- or

Cl

• I

• \

N N

I Il

- NH-C C -NH-

D denotes a benzene or naphthalene radical containing sulfonic acid groups and η 0, or the numbers 1, 2 or 3.

20 The present invention relates to a dyeing method for producing multicolour effects on natural and synthetic polyamide fiber material as well as the multi-colored fiber material produced thereby.

It is Z. B. from Swiss patent 484321 known natural polyamide textile fiber materials How WoHe reserve places against anionic dyes by using these materials at the places provided for reservation with pastes containing a solution or dispersion of one or contain several colorless, free of basic groups, fiber-reactive compounds, printed and then fixed these prints.

Synthetic polyamide material by means of colorless, fiber-reactive compounds is also already available reserved, but in which the fiber-reactive group is connected to the rest of the reservation agent molecule via a —SQj bridge is bound (British Patent 1189726).

Finally, French patent specification 15 73 425 relates to a method of making reservations of natural and synthetic polyamide fiber material using colorless, fiber-reactive Compounds that have only one reactive group. Compare the ones to be used according to the registration fiber-reactive compounds with the closest comparable fiber-reactive compounds • this French patent specification show a superior and not to be expected by a person skilled in the art strong reservation, which creates sharp contrast effects when dyeing in one bath with untreated wool be achieved.

A process has now been found by which not only natural, but also synthetic

Not just printing on this polyamide material, but also by means of the padding process and a subsequent cold storage process or according to the exhaust process permanently reserve kana The present invention has wide applications. This makes it possible to create previously unattainable contrast effects on natural and synthetic To produce polyamide fiber material in a wide variety of processing states. The pattern options are, in contrast to the previously used

6s knew printing processes, practically unlimited.

Another important advantage of the present invention is that the proportion of reservation agent used, that is fixed on the fiber. significant

is higher than with previously known reservation means.

According to the invention, the polyamide material is first treated with an aqueous solution of at least a colorless, fiber-reactive compound and preferably pretreated with a leveling agent with affinity for fibers and then with untreated and / or with at least one pretreated in a different way Fiber material processed and then with a fiber-affine dye or a mixture of such dyes colored. Since the colorless, fiber-active compounds according to the invention by the pretreatment are permanently fixed on the fiber material, you get very nice multi-color effects in this way, z. B. tone-on-tone dyeings, d. h .. colors, which have the same color in different tones, with the one according to the invention Reservoir-impregnated portion has a lighter shade than the portion not treated with the reservation agent.

Colorless, fiber-reactive compounds are to be understood as meaning colorless, organic compounds which contain reactive groups which react easily with the fiber substrates, i.e. a covalent one can enter into chemical bonds. Aromatic radicals of these compounds can have additional substituents such as B. halogen atoms, hydroxyl groups and low molecular weight alkyl and alkoxy groups contain.

The colorless, fiber-reactive compounds are water-soluble according to the invention. As a water-solubilizing agent Groups include, for example, carboxylic acid groups, acidic sulfuric acid and phosphoric acid ester groups, Phosphoric acid groups, acylated sulfonic acid amide groups and especially sulfonic acid groups into consideration. Compounds which contain at least one sulfonic acid group are particularly advantageous exhibit. The term sulfonic acid or carboxyl group includes the free acid, but also includes Salts of these acids and the dissociated state of the acids.

The colorless, fiber-reactive compounds according to the invention are prepared according to methods known per se manufactured.

The method according to the invention is thereby advantageous indicates that the colorless, fiber-active compounds serving as a preservative have the formula is also a group of the formula F.

/ V
N C-Cl

-NH-C

C-F

(H)

B the direct bond, or the bridge member -CH = CH- or

Cl

-NH-C

Il

C - HN-

AD- (BD) _n -A

(111)

has, in which A is a group of the formula

—NH-CO — R (I)

in the R either

-C = CH ₂

Br

-CH-CH ₂ Br
Br

te

means, or, when η = 1, B = —CH = CH— and D =

SO ₃ HD denotes a benzene or naphthalene radical containing sulfonic acid groups and η O, or the numbers 1, 2 or 3.

The colorless, fiber-reactive ones are particularly valuable Compounds of the formula III, in which B is the bridge member —CH = CH—. D a sulfonic acid group-containing Benzene radical and η denotes the number 1.

The colorless reactive compounds are applied to the polyamide fibers from aqueous preparations. The main natural polyamide fiber that comes into consideration is wool. Synthetic polyamide fibers are made obtained for example from the polycondensation products of adipic acid and hexamethylenediamine (Nylon-6,6) and sebacic acid and hexamethylenediamine (nylon-6,10) or from the polymerization products of F-caprolactam (nylon-6) or i ') - aminoundecanoic acid (nylon-11).

The reactive compounds can be applied to the fiber material by known methods be e.g. B. by the exhaust or impregnation process, the entire substrate of a uniform Treatment is subjected.

In the exhaust process one works with aqueous baths at temperatures of 80 to 110 ⁰ C, preferably at 90 to 100 ° C; the pH of the preparations is 4 to 7, preferably 4 to 6 and, if necessary, is adjusted with organic acids; organic acids are those with 1 to 4 carbon atoms, especially formic and acetic acid. In addition, the preparations can contain other agents, such as. B. salts or surface-active agents such as wetting and dispersing agents. Suitable liquor ratios are between 1:10 and 1:40.

The impregnation baths, which can also be present in coacervated form, contain roughly the same additives, in addition, if necessary, also thickening agents. The impregnation can see Zvi 15 and 40 ⁰ C are conducted at play, on the pad at temperatures.

The fixation of the fiber-reactive compound takes place by a cold storage process of z. B. 2 bi 48 hours at room temperature or by a brief steaming process. The substrate is then

washed and mixed with a different fiber material colored. The fiber-reactive compounds are fixed on the fiber in a boil-proof manner.

The amounts in which the colorless, fiber-reactive compounds are used can be wide Borders fluctuate and vary depending on the desired depth of color of the multicolor effects as well as the dyes used. Suitable amounts are about 0.1 to 10 percent by weight, preferably 0.2 to 2 percent by weight for synthetic polyamide fiber material and 1 to 6 percent by weight for wool, based on on the fiber material.

The present invention treated with the colorless fiber-reactive compounds material preferably ₅ yarn is in bulk form, as a sliver or, "then processed with vird uicht pretreated material and / or at least one differently pretreated fiber material such. B. by mixing, carding, twisting, weaving, embroidery, knitting or knitting.

Pretreated differently is intended to mean that either another fiber-reactive compound is used or material pretreated with different concentrations of the same compound is used.

If desired, that which has been pretreated according to the invention can be used Polyamide fiber material not;. 'Ur with untreated and / or otherwise pretreated polyamide fiber material, but also with others organic fibers, e.g. B. with cellulose fibers especially cotton, polyester or polyacrylonitrile fibers processed will. For the subsequent dyeing process, appropriate fiber-affine dyes are used in this case to be used.

The fiber blends obtained are then in a next process step with a fiber affine dye or a mixture of such dyes in the customary manner, expediently in the presence usual dyeing auxiliaries colored.

Usual dyeing auxiliaries are z. B. Condensation Products from fatty amines and ethylene oxide, which are also quaternized and / or esterified can ien; Fatty alcohol and alkylphenol-ethylene oxide addition products, which can optionally also be esterified and condensation products of Fatty acids with lower alkanolamines and polyglycol ethers of these condensation products.

Dyes suitable for the process according to the invention are the normal, anionic wool dyes, which can belong to a wide variety of dye classes. For example, these are the technically important dye classes of the azo, anthraquinone, phthalocyanine, nitro or formazan dyes, which can also contain complex-bound metals such as copper, nickel, chromium or cobalt. As azo dyes are primarily monoazo dyes in question, z. B. those of the phenylazobenzene, phenylazonaphthalene, phenylazohydroxy or aminopyrazole, phcnylazocycloacetylarylamide type, or those of the analogous naphthylazo series, where the aromatic nuclei can be suitably substituted. Dis- and polyazo dyes are also suitable. The azo dyes, formazan dyes, which include the count may be metallized, primarily by chromium or cobalt $ _5, but then also by copper or nickel, per Mctallalom 1 or 2 molecules of dye are involved in the complex. In addition to the halogen, nitro, acylamino, alkyl, alkoxy, sulfonyl substituents, etc. which are customary in these dyes, anionic wool dyes which can be used according to the invention can also contain substituents with an affinity for fibers, for example substituents with constituents which can be split off as anions, e.g. B. mobile fluorine, chlorine, bromine atoms or sulfatoxy groups. or double bonds capable of addition, such as vinylsulfonyl or vinylcarbonyl groups, or both types of reactive configurations, such as in <iJ-D \ - chlorine or dibromoacroylamino groups. From a dyeing point of view, both the strongly acidic classes of the anionic wool dyes to be dyed and the weakly acidic to neutral dyed classes come into consideration.

Particularly preferred are the reactive dyes, which are in particular from water-soluble azo and derive anthraquinone dyes and, as a reactive grouping, at least one of a, -unsaturated aliphatic, 1 to 4 carbon atoms containing, carboxylic acid derived acylamino radical or contained in such a convertible residue by splitting off acid. Examples of reactive groups are the radical of the formula derived from acrylic acid

CH ₂ = CH-CO- (IV)

and the acrylic residues, which are in or position negative substituents, e.g. B. contain a halogen atom, as well as halogenated Propionylrestc of the formulas

-CO-CH ₂ -CH ₂ -X (V)

wherein X is each a chlorine or bromine atom.

The reactive moieties are preferably attached to an aromatic ring via a nitrogen atom of the dye molecule bound. The dyes contain suitable water-solubilizing groups z. B. carboxylic acid or sulfonic acid groups. Those dyes are preferred which have at least one Have sulfonic acid group.

If only a single dye is used in the dyebath, only Achieved various multicolor effects in the shade. Comes to particularly valuable multi-color effects however, when using two or more dyes of different shades.

The polyamide fiber mixture can be dyed in a wide variety of processing states, see above z. B. in loose form or as a sliver, tow, yarn, woven fabric, knitted fabric, nonwoven fabric or carpet.

The dyeing takes place as an exhaust process (liquor ratio about 1:20 to 1:50) according to known methods at temperatures from 80 to 110 ^° C., preferably from 90 to 100 ^° C., or as an impregnation process on a padder at room temperature, whereby the dye is fixed a brief steaming process on the fiber or storage at room temperature for a longer period of time, e.g. B. 2 to 48 hours, follows.

-CO-CH-CH ₃ (Vl) X -CO-CH-CH ₂ (VII) X X

The dye bath can also contain the auxiliaries customary in dyeing, for example salts, such as sodium sulfate or ammonium sulfates, acids such as acetic acid or formic acid, wetting agents or surface-active agents Compounds as leveling agents, nonionic compounds, e.g. B. urea or thiourea, and optionally thickening agents, the latter being used particularly in the impregnating lottles Find.

The pH values of the dyeing preparations are between 4.5 and 6.5 and are low molecular weight Acids, preferably adjusted with formic or acetic acid.

It is particularly advantageous to use a leveling agent with affinity for fibers in pretreatment and dyeing use, whereby the contrast flecks can be intensified.

In a preferred embodiment of the process according to the invention, the pretreatment is used to reserve wool 2 to 6% of a colorless, fiber-reactive according to the invention Compound, based on the weight of the goods, 1% of an auxiliary mixture

a) 1 part of the adduct of 1 mol of a fatty amine (30% hexadecylamine, 25% octadecylamine and 45% octadecenylamine) and 7 moles of ethylene oxide, quaternized with chloroacetamide, and

b) 1 part of the ammonium salt of the acid sulfuric acid ester of the unquaternized adduct (a)

and 2 to 2.5% acetic acid (80%) and for pretreatment to reserve synthetic poly

CH ₂ -CH-CO-HN

Br Br

amide 0.2 to 2% of a colorless, fiber-reactive compound according to the invention, 2% acetic acid (80%) and optionally 1% of the abovementioned auxiliary substance.

The eirfindungsgetnäß method allows on to obtain undyed fiber materials with one or more dyes by dyeing in a dye bath Zweiöder multicolor effects. The colorless ones fiber-reactive compounds are boil-proof

ίο the fiber fixed, so that during the actual dyeing process Ik a migration of these compounds to untreated Material can take place. A leveling out of the two- or multi-color effects will be thus avoided. The process is simple to perform and involves a minimum of procedural steps out. Fiber damage occurs neither during the pretreatment nor during the actual dyeing process on.

In the examples below are the temperatures given in degrees Celsius. Parts are parts by weight and percentages are percentages by weight, based on weight in each case based on the weight of the fiber material used, unless expressly stated otherwise. Liquor ratios are given in parts by volume.

example 1

100 parts of wool yarn are 1 hour at 100 ° in an aqueous preparation (liquor ratio 1:40) treated the 6% of the colorless, fiber-reactive compound of the formula

SO ₃ H

SO ₃ H

2.5% acetic acid (80%), 1% of an auxiliary mixture

a) 1 part of the adduct of 1 mol of a fatty amine (30% hexadecylamine, 25% octadecylamine and 45% octadecenylamine) and 7 moles of ethylene oxide, quaternized with chloroacetamide, and

b) 1 part of the ammonium salt of the acid sulfuric acid ester of the unquaternized adduct (a)

contains. The wool yarn is then rinsed and together with 100 parts of untreated wool yarn Dyed for 60 minutes at 100 ° in a dyebath (liquor ratio 1:40) containing 0.75% of the blue dye the formula

NH ₂

SO ₃ H

Br

\ -NH -CO-C = CH,

0.5% of the above-mentioned auxiliary mixture and so much acetic acid (80%) that the dyebath has a pH of 5.5.

The fiber material is wetted for 5 minutes at 50 ° in a preparation which contains the auxiliary and the acid NH-CO-CH-CH ₂
Br Br

contains, then adds the dye, heats to a boil in 50 minutes and colors for 1 hour Temperature. After the dyebath temperature has been cooled to 80 °, the pH is adjusted to 8.5 with ammonia admits and treated the fiber material for 15 minutes The dyed goods are then rinsed and dried.

The untreated yarn is dyed blue, while the treated yarn is a level light blue shade having.

The liquor ratio can be varied between: 1:10 and 1:40. A similar coloration is obtained if the dyebath is heated to 85 "and dyed at this temperature for 90 minutes.
If, in the above example, only 3% instead of 6% of the colorless, fiber-reactive compound is used, a similar coloration is obtained, the contrast being somewhat less pronounced.

Is the pretreatment without the addition of the auxiliary agent carried out, the subsequent dyeing results in a weaker contrast between treated and untreated wool.

B e i s ρ i e 11 2

100 parts of woolen yarn are 1 hour at 100 ° in an aqueous preparation (liquor ratio 1:40)

10

treated the 6% of the colorless, fiber-reactive compound of the formula

Cl Cl

C C

SO ₃

N N y ~ 3

c-hn- / ~ Vch = ch- / ~ Vnh-c

SO ₃ H NH-CO-CH-CH ₂

Br Br

C-NH

SO ₃ H

NH-CO-CH-CH ₂

II Br Br

2% acetic acid (80%), and 1% of the auxiliary mixture according to Example 1 contains. Then the wool yarn rinsed and dyed together with 100 parts of untreated woolen yarn for 1 hour at 100 ° in a dye bath (Liquor ratio 1:40), the 1.5% of the dye of the formula

SO ₃ H

HO NH-

CH ₂ -CH-CO-NH Br Br

HO ₃ S

SO ₃ H

NH-CO-CH-CH ₂ Br Br

0.5% of the above-mentioned auxiliary mixture and so much acetic acid (80%) that the dyebath has a pH of 5.5.

The fiber material is aftertreated as indicated in Example 1.

The dyed goods are then rinsed and dried.

The dyeing has good fastness properties, particularly good wet fastness properties.

The untreated yarn is dyed red, while the treated yarn is a level light pink shade indicates.

Example 3

If, instead of the dye given in Example I, a mixture of 0.12% of the yellow dye of the formula OH ^ ^{1 is used}

c-N-y \

V- _N = _N - _c

NH-CO-

C = N
CH ₃

-C = CH ₂
Br

LjI- so ₃ H

Cl

0.3% of the red dye of the formula

CH, = C-CO-HN

Br

and 0.6% of the blue dye indicated in Example 1, a gray coloration is obtained on the untreated Portion and a level light gray color on the pretreated portion.

Example 4

Used in place of that given in Example I. Dye 1% of the dye of the formula

2O

and 2% acetic acid (80%), the result is a blue color on the untreated part and a level light blue color on the pretreated part.

B e i s ρ i e I 5

If, instead of the dye indicated in Example 1, a mixture is used

0.5% of the yellow dye of the formula

OH
OH

δ.4% of the burgundy dye of the formula

NH-CH, -CH, -OCH

■ S and

0.2% of the gray dye of the formula

1: 2 chrome components:

COCH ₁

NH- CH,

V-N = N-C '

Cl

SO ₂ -NH-CH ₃

I and 1.5% acetic acid (80%), one obtains a

C — CH ₃ brown color on the untreated part unc

a level light brown color on the pretreated part.

Example 6

Combed wool is padded with the following preparation and squeezed to 100% weight gain: I: 2-cobalt complex 40 60 parts of the colorless compound of the formula

2 CH SO ₃ H Cl
ι N \
N SO ₃ H -CO- Br ^ J ^ HN I.
C. —C
\ / Il - CO -NH N NH CH Br -CH-CH ₂ Br Br

30 parts of the ammonium salt of the acid sulfuric acid ester of the adduct of 2 moles of ethylene oxide with 1 mole of p-tert-nonylphenol,
320 parts of a 2.5% aqueous solution of a

Starch-ether-thickening,
10 parts of acetic acid (80%)

1000 parts supplemented with water.

The ρ H value of the preparation is 5.
The fiber material is then steamed for 45 minutes at 100 ° and then rinsed.

For Färljen 50 parts are pretreated and 50 parts of untreated sliver mixed and 1 hour at boiling temperature with the dye colored according to example 2.

After the dyeing temperature has cooled to 80 °, the pH is adjusted to 8.0 with ammonia and the fiber material is treated for 15 minutes. The dyed goods are then rinsed and dried.

The untreated top is colored red, while the pretreated top is light pink Hue shows.

13 ^v 14

A similar color is obtained if, instead of the abovementioned colorless compound, the uses the following connection:

F F

C C

Cl-C N, ^{j H} N C-Cl

C-HN-V V-CH = CH- / V-NH-C

SO ₃ H

Example 7

Woolen fabric is padded with the following preparation and squeezed off to 100% weight gain:

300 parts urea,

320 parts of a 2.5% strength aqueous solution of a

Starch-ether-thickening,
10 parts of the reaction product of coconut fatty acid with 1 mole of diethanolamine,
30 parts of the colorless compound of the formula

SO ₃ H _Rr

NH-CO-CH-CH-Br

15 50 parts of the fabric pretreated in this way and 50 parts of untreated fabric are dyed by the exhaust process at 100 ° with a liquor which, at a liquor ratio of 1:40, has the following composition: 0.9% of the yellow dye specified in Example 3, 1 , 1% of the red dye specified in Example 3, 0.45% of the blue dye of the formula

O NH,

SO ₃ H

HO ₃ S

HN

CH-CH ₂ -Br

Br
HNCO-C = CH ₂

2 parts of acetic acid (80%) on
1000 parts supplemented with water.

The pH of the preparation is 5.5.

The impregnated fiber material is stored for 48 hours at room temperature in the absence of air then rinsed.

0.5% of the auxiliary agent mixture according to Example 1 and 2% acetic acid (80%).

The pH of the liquor is 5.0.
After dyeing, the liquor is adjusted to a pH of 8.5 with ammonia and the fiber material is treated therein at 80 ° for 15 minutes, then rinsed and dried.

Treated and untreated fiber material show different shades of brown (two-tone effect).

example

100 parts of polyamide 6,6 yarn (nylon yarn) are used at a liquor ratio of 1:40 for 1 hour 100 ° treated with a liquor containing 1% of the colorless compound specified in Example 1 and 2% Contains acetic acid (80%). The yarn is then rinsed. The liquor ratio can be between 1:10 and 1:40 can be varied. The exhaust process can can also be carried out for 30 minutes at 105 °.

50 parts of pretreated polyamide yarn become one with 50 parts of untreated polyamide yarn Processed knitted fabrics and containing 0.3% of the specified in Example 3 with an aqueous liquor yellow dye. 0.2% of that given in Example 1 blue dye, and 2% acetic acid (80%) in a liquor ratio of 1:40 for a pH of the liquor of 5 for one hour at 100 'colored. A common leveling agent to make eir The dyebath can avoid any slrcing dyeing of the polyamide fiber material that may occur be admitted.

The result is a knitted fabric with a green two-tone effect.

Example 9

Using the procedure of Example 8, 0.5% of the colorless compound replaces the colorless compound Compound of formula

SO ₃ H

CH ₂ -HCH-CO-NH
Br Br

SO ₃ H

and the dye mixture is replaced by Q £% of the dye indicated in Example 2, so one obtains on the untreated part a red color and on the pretreated part a level, light pink color.

Example 10

Using the procedure of Example 8, 1.5% of the colorless compound replaced the colorless compound Compound of formula

SO ₃ H

CH ₂ -CH-CO-HN
Br Br

SO ₃ H

-CO-CH-CH ₂
Br Br

and the dye mixture by 0.5% of the in Example 1 B e ι s ρ ι e 11

Replaced the specified dye, one obtains Similar results are obtained if in place of the

the untreated part a blue color and on 15 specified in Example 8 colorless, fiber-reactive

the pretreated part a level light blue color. Compound 1% of the colorless compound of the formula

SO ₃ H 1
Br -CH ₂ Il -CO-CH-CH ₂ Br Ϋ ⁷ N-NH-CO-CH NH J II
Br Br

is used and the dye liquor by 1% of the im.

Example 5 given gray dye and 3% 30 Example 12

Ammonium sulfate is replaced. Similar results are obtained on the untreated if instead of the

Part one obtains a gray coloration and on the colorless, fiber-reactive indicated in Example 8

pretreated part a level light gray color. Compound 1% of the colorless compound of the "formula

F.
I. SO, H /
N
Ν F.
I. c-ci I.
C. S. -CH > -NH- C
r ^N I.
C. C-F Cl ^x \ F. —C
Λ /
N \ /
N \
N
Μ Il
C-
/ -HN- J

SO ₃ H

is used and the dye liquor by 1% of the dye of the formula

COONa

HO-

N = N

and replacing 3% ammonium sulfate. On the untreated part you get a red color and a level light red color on the pretreated part.

Example 13

Similar results are obtained when using 100 parts of polyamide 6,6 yarn (nylon yarn) at a liquor ratio of 1: 40 pretreated for 1 hour at 100 "with a liquor containing 0.5% of that specified in Example 2 colorless compound, 2% acetic acid (80%) and

SO ₃ Na

1% of the mixture of auxiliaries given in Example 1 contains, then rinses the yarn, and otherwise dyes as indicated in Examples 9 to 12.

If you use 1.5% of the colorless compound mentioned above, the contrasts are stronger between the lighter and darker shade.

If the pretreatment is carried out without the addition of the auxiliary mixture, the result is a subsequent one Dye a weaker contrast between treated and untreated yarn.

17th

Example 14

18th

The fiber material is then steamed for 45 minutes at 100 'and then rinsed.

Polyamide 6.6 yarn (nylon yarn) is made with the following 50 parts of pretreated polyamide yarn

Preparation padded and 100% by weight 50 parts of untreated polyamide yarn to one

increased squeezed: 5 knitted fabrics processed and with the in Example 8

, _n -r -,. - _D -. . . ,,, given dye liquor for 1 hour at 100 ^G

Parts of the example! 1 specified color f "bt

™ τ μ ^{loose connection} 8> ^ai A common leveling agent to

30 Te ₁ Ie as ammonium salts as the acidic sulfur _trespassing streifigfärben the polyamide fiber material to

felsaureesters the adduct _{dd kan} * are added to _the dyebath.

of 2 moles of ethylene oxide to 1 mole of p-tert- ^νε ^ _{ejn fabric with a green two-tone} .

Nonylphenol, ~.,

Parts of a 2.5% aqueous solution of an ^ee '

Starch-ether-thickening,
Divide acetic acid (80%)
Parts supplemented with water.

The pH of the preparation is S.

Examples 15 to 27

Instead of the colorless, fiber-reactive compounds mentioned in the preceding examples you can also use the following compounds:

NH - COC = CH ₁

Br
SO ₃ H

CH ₂ = C-CO-HN

Br

CH = CH

NH-CO

Br
C = CH,

SO ₃ H

In the following formulas, A is in each case the fiber-reactive group of the formula I:

HO ₃ S

(17)

SO ₃ H

45

(18)

(19)

55

6o

(15)

(16)

(21)

CH ₃ SO ₃ H

- O-CH ₂ CH ₂ -O- / VA (23) SO ₃ H SO ₃ H

SO ₃ H

HO ₃ S

(20) 65

(24)

NH-CO-CH ₃

19th

COOH

20th

• \

N N

f V-NH-C

COOH

(25)

Cl C

SO, H

Cl

N N

SO ₃ H SO ₃ H

SO ₃ H

Claims (3)

Patent claims: .1. Process for creating multicolor effects on natural and synthetic polyamide fiber material by treating this fiber material with an aqueous solution of at least one colorless, fiber-reactive compound and optionally treated with a leveling agent with affinity for fibers, with untreated and / or with at least processed with a differently pretreated fiber material and with a fiber-affine one Dyestuff or a mixture of such dyes, characterized in that the colorless, fiber-active compound serving as a reservation agent has the formula 2. The method according to claim 1, characterized in that 1 to 6%, based on there Fiber weight, the colorless, fiber-reactive ver binding for the preparation of wool or 0.2 to 2%, based on the fiber weight, of the colorless fiber-reactive compound used to prepare synthetic polyamide fiber material 3. The method according to claim 1, characterized in that the fiber-reactive Ver compounds applied as formulations which pH 4 to 7, preferably is from 4 to 6 wherein the treatment with the faserreaktiveii compounds according to the exhaust method at 80 to 110 ⁰ C. or is connected to the impregnation at 15 to 40 ⁰ C carried out with a subsequent fixing process.