KR20140071563A - Composition of Reactive Dyestuffs and Methods for Dyeing Fiber Using the Same - Google Patents

Abstract

The present invention relates to a reactive dye composition comprising one or more compounds selected from a group including compounds represented by chemical formula 1 and 2, and to a dyeing method using the same. <Chemical formula 1><Chemical formula 2> In chemical formulas 1 and 2, n, m, M, m′, M′, R1-R9, Ar1, Z1, Z2, X1, X1′ and Y1 are as defined in claim 1. The dye composition according to the present invention has enhanced build up and various fastness, thereby being suitable for dyeing or textile printing fiber materials including nitrogen or a hydroxyl group.

Description

Technical Field [0001] The present invention relates to a reactive dye composition and a method of dyeing fibers using the reactive dye composition.

The present invention relates to a reactive dye composition, and more particularly, to a dye composition excellent in levelness, build up and fastness, and a fiber material containing nitrogen or a hydroxy group &Lt; / RTI &gt;

Reactive dyes are widely used because they have good color fastness and fastness. Conventional techniques for dyeing cellulosic fiber materials in yellow with reactive dyes include bichromatic reactive dyes such as Sii Liative Yellow 145 (CI Reactive Yellow 145) or CI Reactive Yellow 205 is generally used.

However, since dyeing by the above compound is difficult to realize deep colors and various colors, a composition of two or more dye compounds may be used. Such a mixed dye may be, for example, a red compound and a blue compound It has a problem that the reproducibility of a desired color is poor because of mutual compatibility with each other and it is not suitable for high density dyeing because of lack of build up and low build up of yellow dye alone, It is not suitable for high concentration dyeing. In addition, yellow dyeing is required to have high fastness to light or sweat as in all dyes, but it has a problem that it can not satisfy this requirement.

On the other hand, dyeing using a reactive dye requires a more economical method in terms of the quality of the dye and the profitability of the dyeing process, and there is a strong demand for development of a dye for easy color adjustment. As a result, it is necessary to have a dye having a good levelness in a high-concentration dyeing operation, a sufficiently high dye concentration of each component in the case of a compounding dye, and a reactive dye having a solubility in which preparation of a high- . As a result, there is a great need for dyes that exhibit excellent build up properties and fastness by incorporating dye components having excellent levelness and solubility while satisfying these conditions.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above-mentioned problems of the prior art and the technical problems required from the past.

The inventors of the present application have developed a dye composition excellent in levelness, build up and fastness after intensive research and various experiments. Through the dyeing using the dye composition, The present inventors confirmed that it is possible to reproduce deep colors which are difficult to be realized with dyes and that they can be economically produced by dyeing with high quality because of their high solubility in the preparation and easy mixing. Thus, the present invention has been completed.

The present invention provides a reactive dye composition comprising at least one compound selected from the group consisting of a compound represented by the following formula (1) and a compound represented by the following formula (2).

&Lt; Formula 1 >

(2)

In this formula,

n is an integer from 0 to 1;

m and m 'are each independently an integer of 1 to 3;

M and M 'are each independently hydrogen, silver or an alkali metal;

R ₁ and R ₂ are each independently hydrogen or a substituted or unsubstituted C ₁ -C ₄ alkyl group;

R ₃ , R ₄ , R ₅ , R _6, R _7, R ₈ and R ₉ are each independently selected from the group consisting of hydrogen, hydroxy, amino, C ₁ -C ₆ alkyl, C ₁ -C ₆ alkoxy or sulfo ₃ H);

Ar ₁ is benzene or naphthalene;

Y ₁ is vinyl or a formula -CH ₂ -CH ₂ -Q group, where Q is _{-Cl, -Br, -F, -OSO 3} H, -SSO 3 H, -OCO-CH 3, -OPO 3 (C ₁ -C ₄ alkyl) ₂ , -OCO-C ₆ H ₅ , -OSO ₂ -C ₁ -C ₄ alkyl, or -OSO ₂ -N (C ₁ -C ₄ alkyl) ₂ .

X ₁ and X ₁ 'are each independently selected from halogen, hydroxy, 3-carboxy-pyridin-l-yl, 4-carboxy-pyridin-l-yl, 2-carbamoyl-pyridin-l-yl, C ₁ -C ₄ alkyl, A substituted or unsubstituted amino group, an N-heterocyclic group which may further contain a hetero atom, or a substituent of the following general formula (3);

(3)

In this formula,

k is 0 to 2;

R ₁₀ is hydrogen or a substituted or unsubstituted C ₁ -C ₄ alkyl group;

R ₁₁ is hydrogen, sulfo, halogen, C ₁ -C ₄ alkyl, C ₁ -C ₄ alkoxy, or carboxyl group;

Y ₂ is as defined for Y ₁ ,

Z ₁ each independently represents hydrogen, a hydroxyl group, an amino group, acetylamide, phenylamide, sulfo, a C ₁ -C ₆ alkyl group or a C ₁ -C ₆ alkoxy group;

Z ₂ is an amino group optionally substituted by C ₁ -C ₄ alkyl, C ₁ -C ₄ alkoxy, or an N-heterocyclic group which may further contain a heteroatom, or a group represented by the following general formulas 3a, 3b, 3c, 3d Lt; / RTI &gt;

&Lt; EMI ID =

In this formula,

h is 0 to 3;

R ₁₂ is hydrogen, a sulfo, a halogen, a C ₁ -C ₄ alkyl group, a C ₁ -C ₄ alkoxy group, or a carboxyl group;

Y ₃ is as defined for Y ₁ ,

&Lt; EMI ID =

In this formula,

D is 0 to 3;

v is 1 to 6;

Y ₄ is as defined for Y ₁ ,

&Lt; Formula 3c >

In this formula,

o is 0 to 3;

R ₁₃ is hydrogen, sulfo, halogen, a C ₁ -C ₄ alkyl group, a C ₁ -C ₄ alkoxy group, or a carboxyl group;

Y &lt; ₅ &gt; is as defined for Y &lt; ₁ &

<Formula 3d>

In this formula,

q is 0 to 3;

r is 0 to 2;

M ₁ is hydrogen, silver or an alkali metal;

R ₁₄ is hydrogen, a hydroxy group, a halogen, a cyano, a C ₁ -C ₄ alkoxy group, a C ₁ -C ₄ alkoxycarbonyl, or a carbonyl group.

The dye composition according to the present invention is superior in build up and levelness as compared with a single dye. In addition, it has excellent solubility of each dye in mixing and is highly compatible with high color reproducibility. Moreover, the obtained dyes have high fiber-dye bond stability, excellent fastness to cross-dyeing, sweating, seawater and light, and particularly excellent washing fastness.

Examples of the alkali metal include lithium, sodium, potassium, rubidium, cesium and francium, preferably sodium.

C ₁ -C ₆ alkyl is preferably methyl, ethyl, isopropyl, n-butyl, sec-butyl, tert-butyl, isobutyl, n-pentyl, isopentyl and n- And ethyl, but are not limited thereto.

The C ₁ -C ₆ alkoxy is preferably methoxy, ethoxy, n-propoxy, isopropoxy, n-butoxy, isobutoxy, n-pentoxy, isopentoxy and n- Particularly preferably methoxy, but is not limited thereto.

The N-heterocyclic group may be a morpholine, thiomorpholine, piperazine or piperidine radical, but is not limited thereto.

The compounds represented by the above-described chemical formulas can be prepared based on the above-described chemical structure, as long as those skilled in the art are familiar with the present invention. For example, diazotization, coupling, condensation, and the like can be performed to produce the compounds represented by the above formulas. Those skilled in the art can easily reproduce have.

In one preferred example, R ₁ , R ₂ , R ₅ , R ₆ , R _7, and R ₈ in the general formulas (1) and (2) may be hydrogen.

X ₁ in the formula (1) may preferably be a halogen.

Furthermore, Z &lt; ₂ &gt; in formula (1) may particularly preferably be represented by the following formula (3a).

&Lt; EMI ID =

In this formula,

h is 0 to 3;

R ₁₂ is hydrogen, sulfo, halogen, a C ₁ -C ₄ alkyl group, a C ₁ -C ₄ alkoxy group, or a carboxyl group;

Y ₃ is as defined for Y ₁ ,

More preferably, the formula (3a) may be the following formula (4).

&Lt; Formula 4 >

The compound of formula (1) is particularly preferably a compound of formula (5).

&Lt; Formula 5 >

Ar ₁ in the above formula (2) may preferably be naphthalene.

M 'in the formula (2) is preferably 3.

R ₃ in Formula 2 may preferably be sulfo (-SO ₃ H), and R ₄ and R ₉ may be an amino group.

X ₁ 'in the above formula (2) may preferably be halogen.

Y ₁ in Formula 2 may preferably be? CH ₂ -CH ₂ -OSO ₃ H.

The compound of formula (2) is particularly preferably a compound of formula (6).

(6)

In some cases, the dye composition may include both the compound of Formula (1) and the compound of Formula (2).

In this case, the mixing ratio of the compound of the formula (1) and the compound of the formula (2) may be determined by various factors such as the kind of the compound and the kind of the color to be realized, And the compound of Formula 2 may be mixed in a ratio of 70:30 to 1:99, preferably 40:60 to 5:95, based on the total weight of the reactive dye composition. More preferably, the compound of Formula 1 and the compound of Formula 2 may be mixed at a ratio of 7:93 based on the total weight of the reactive dye composition.

The present invention also provides a fiber material comprising nitrogen or a hydroxy group using the reactive dye composition.

The nitrogen-containing fiber material may preferably be a natural or synthetic polyamide fiber.

Such natural polyamide fibers include wool, silk fibroin, and keratin. Synthetic polyamide fibers include nylon 66 and nylon 6, and are particularly suitable for dyeing synthetic polyamides .

The fiber material comprising the hydroxy group may be a cellulose fiber.

Examples of such cellulose fiber materials include natural cellulosic fibers such as cotton, flax, hemp, pulp and regenerated cellulose, and are particularly suitable for dyeing cotton. The fiber-reactive dye compositions according to the invention are also suitable for dyeing cellulosic blend fabrics, such as cotton / polyester, cotton / nylon blend fabrics and the like.

In the dye liquid, the amount of the fiber-reactive dye composition can be changed according to the desired degree of coloration. The fiber-reactive dye compound according to the present invention can be used in an amount of 0.01 to 10% by weight, preferably 0.01 to 8% by weight, based on the fabric to be dyed.

The fiber-reactive dye compositions according to the invention are particularly suitable for dyeing by the exhaustion method.

The dyeing by the adsorption method is generally carried out in an aqueous medium with a weight ratio of water to dye of 1: 2 to 1:60, preferably 1: 5 to 1:20, and the reaction is carried out at 20 to 105 ° C, preferably 30 to 90 Deg.] C, more preferably 40 to 80 [deg.] C.

Other suitable dyeing methods include pad dyeing, in which the fabric is generally impregnated by impregnation with an aqueous, saline, salt solution or the like, wherein the pick-up is based on the weight of the textile material to be dyed , Preferably 20 to 150%, preferably 50 to 100%. The aqueous liquid may already contain a fixed alkali or, in some cases, the treated fiber material may be treated with a fixed alkali after impregnation. Suitable examples of the alkali metal include a composition of sodium carbonate, sodium bicarbonate, sodium hydroxide, disodium phosphate, trisodium phosphate, sodium borate, aqueous ammonia, sodium sodium chlorosuccinate or sodium silicate solution, Hydroxides and / or alkaline carbonates, especially sodium hydroxide and / or sodium carbonate, are preferred.

Fixation can be performed by impregnating the impregnated fibrous material at a temperature of, for example, 100-120 &lt; 0 &gt; C, by steam treatment, in particular by thermal action, such as saturated steam. According to the so-called cold pad-batch method, the dye is placed in a padder with alkali and stored for several hours, for example 3 to 40 hours, at room temperature to fix. After fixation, a dispersant is added to the dyed material and cleaned precisely.

The dyes obtained by the present invention are excellent in build up and levelness. Further, the fixing property is high, unfixed dyes can be easily washed off, and the difference between the degree of adsorption and the fixing property, that is, the soap loss is small. Moreover, the obtained dyes are excellent in coloring degree, high fiber-dye bond stability, excellent fastness to cross-dyeing, sweating, seawater and light, and especially washing fastness, Also excellent.

The dye composition of the present invention is excellent in reproducibility in dyeing by dipping and dyeing since it has excellent build-up, uniformity and washability in dyeing of a fiber material, especially natural or synthetic polyamide fiber or cellulose fiber

FIG. 1 is a graph showing the build up of dye compositions according to Example 1 and Comparative Examples 1 and 2. FIG.
Fig. 2 is a photograph showing the color reproduction power of the dyed dyed salt with the dye composition according to Example 1 and Comparative Examples 1 and 2. Fig.

Hereinafter, the present invention will be described in detail by way of examples and comparative examples, but the scope of the present invention is not limited thereto.

&Lt; Preparation Example 1 &

To 40 parts of water at 5 캜, 0 part of cyanuric chloride was dispersed, and 34.2 parts of 2 - AMINO 5 - NAPHTHOL 1,7 - DI SULFONIC ACID was added to 125 parts of water and caustic soda was added to dissolve the solution. To pH = 3. After dissolving 32 parts of 1-aminobenzene-4-sulfatoethyl-sulfone in 50 parts of water, the reaction mixture was poured in a neutralizing bath to adjust the pH to 4.5 and the temperature was raised to 20 ° C.

34.5 parts of 2-naphthylamine-1,5-disulfonic acid are dispersed in 103 parts of water, 13 parts of dilute hydrochloric acid is added, and 51 parts of ice are added thereto. The temperature is adjusted to 5 ° C or lower and 15.3 parts of acetic acid is diazotized. The diazo solution is added to the reaction solution 1 and the pH is adjusted to 7 with soda ash to complete the synthesis. Drying gives 165.2 parts of the compound of formula (5).

&Lt; Preparation Example 2 &

61.9 parts of 2-naphthylamine-3,6, 8-trisulfonic acid is dispersed in 130 parts of water, and then 12.5 parts of dilute hydrochloric acid is added dropwise. 130 parts of ice are added, and 11.8 parts of acetic acid is slowly added dropwise to diazotization. 24.7 parts of APU are dispersed in 140 parts of water and adjusted to pH = 6.5 with caustic soda. 2-Naphthylamine-3, 6, 8-Trisulfonic acid diazo. (Reaction solution B)

54.2 parts of 1-aminobenzene-4-sulfatoethyl-sulfone is dispersed in 73 parts of water, and then 21 parts of dilute hydrochloric acid is added dropwise. 75 parts of ice is added, and 13.9 parts of acetic acid is slowly added dropwise to diazotize it. After diazotization, 35 parts of Meta Phenylene Diamine and 4-Sulfonic Acid are dispersed in 211 parts of water and adjusted to pH = 7 with caustic soda. After adding 36 parts of ice, 1-aminobenzene-4-sulfatoethyl-sulfone diazo solution is added and the pH is adjusted to 6 by adding soda ash solution. (Reaction liquid C)

30 parts of cyanuric chloride is dispersed in 33 parts of water at 5 ° C and the reaction solution B is adjusted to pH = 6 with caustic soda while the reaction solution B is added at 10 ° C or lower. When the reaction is completed, the reaction solution C is added, the temperature is raised to 60 캜 and the pH is adjusted to 5.5 for 3 hours to complete the synthesis. Drying yields 219 parts of compound (6).

&Lt; Example 1 >

Based on the total weight of the reactive dye composition, 7% by weight of the compound of the formula (5) and 93% by weight of the compound of the formula (6) were stirred to prepare a reactive dye composition.

&Lt; Formula 5 >

(6)

&Lt; Comparative Example 1 &

CI. &Lt; / RTI &gt; Reactive Yellow 145 was prepared.

&Lt; Comparative Example 2 &

A dye composition was prepared comprising CI Reactive Yellow 205, a bifunctional reactive dye of the formula:

<Experimental Example 1>

0.6 g of each of the dye compositions of Example 1 and Comparative Examples 1 and 2 was added to 1,200 ml of water, and the resulting salt solution was placed in a 2 L stainless steel beaker. To this was added 1/3 Common Salt, 1/4 Soda Ash and 1 g / After the addition of a leveling agent, the mixture was stirred, and then a cotton knit wetted with water was tightly squeezed. During the experiment, the fabric was not exposed to the outside of the salt solution. After 15 minutes from the initial staining time, 1/3 Common Salt was added. After 15 minutes, 3/4 Soda Ash was added, and the mixture was stained for 45-60 minutes while maintaining the temperature at 98-100 ° C. After completion of the dyeing, cold rinse was performed, and 0.5 g / l of soaping agent and 1.0 g / l of soda ash were added and soaped at 40 - 45 캜 for 10 minutes. After washing with cold water and dehydrating, drying at 60 ° C was used to compare the K / S values measured with a color measuring instrument called CCM (Computer Color Matching) to measure the build up.

As can be seen from Fig. 1, the reactive dye composition of the example according to the present invention had a C.I. Reactive Yellow 145 &lt; / RTI &gt; and C.I. Reactive Yellow 205 of Comparative Example 2, respectively. Specifically, when reactive dyes such as Comparative Examples 1 and 2 are dyed alone, they are not suitable for dyeing at a high concentration due to low accumulation property, and it is difficult to realize a desired color. On the other hand, the reactive dye composition according to the present invention has an excellent accumulation property, And high-density dyeing of fibers requiring color sensitivity are possible.

The excellent build up in the dye field means that when a dye is dyed with the same dye amount, a dye having a relatively high concentration is dyed in the dyed material, and even if only a small amount of dye is used in order to realize the same color, And owf (on the weight of fiber) means the amount of dye relative to the weight of the fiber to be dyed, and can be expressed as the following equation. For example, dyeing 500 g of dyes with 5 g of dyestuff will dye it 1% o.w.f. .

FIG. 2 is a photograph of a dye-dyed salt according to Example 1 and Comparative Examples 1 and 2, which shows a relative staining density when 8% o.w.f. is taken as 100%.

Referring to FIG. 2, the reactive dye compositions according to the present invention exhibited the best color reproducibility, and Comparative Example 1 and Comparative Example 2, which were dyed singly, showed low accumulation property, have.

<Experimental Example 2>

Wash fastness was confirmed by ISO-105 C06 C5S method. The fastness test is carried out using a Launder-O-Meter, stainless steel container (75 mm ± 5 mm: diameter, 125 mm ± 10 mm: length, 550 ml ± 5 ml: capacity). Prepare the dyestuffs of size = 10 cm x 4 cm and prepare multifiber. Add 1 g / L of sodium perborate and 4 g / l of ECE Detergent (B): phosphate reference detergent powder as specified in ISO. Non-corrodible steel balls: Add 25 pieces of 6mm size and measure for 30 minutes at 60 ° C and pH = 10.5 ± 0.1 to evaluate the degree of discoloration of multifiber on a gray scale.

ISO105-C06 C2S C.C DA CO PA PES PAN WO Example 1 4 5 4/5 5 5 5 5 C.I. Reactive Yellow 145 4 5 4/5 5 5 5 5 C.I. Reactive Yellow 205 4 5 4 5 5 5 5

(In Table 1, C.C represents Color Change, DA represents Diacetate, CO represents Bleached cotton, PA represents Polyamide (nylon), PES represents Polyester, PAN represents Acrylic, and WO represents Wool)

According to Table 1, the reactive dye composition of Example 1 had high accumulation property and was dyed in the fiber material at a higher concentration than Comparative Examples 1 and 2. However, it was found that the reactive dye compositions had a wash fastness similar to or better than those of Comparative Examples 1 and 2.

Those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims.

Claims (17)

1. A reactive dye composition comprising at least one compound selected from the group consisting of a compound represented by the following formula (1) and a compound represented by the following formula (2)
&Lt; Formula 1 >

(2)

In this formula,
n is an integer from 0 to 1;
m and m 'are each independently an integer of 1 to 3;
M and M 'are each independently hydrogen, silver or an alkali metal;
R ₁ and R ₂ are each independently hydrogen or a substituted or unsubstituted C ₁ -C ₄ alkyl group;
R ₃ , R ₄ , R ₅ , R _6, R _7, R ₈ and R ₉ are each independently selected from the group consisting of hydrogen, hydroxy, amino, C ₁ -C ₆ alkyl, C ₁ -C ₆ alkoxy or sulfo ₃ H);
Ar ₁ is benzene or naphthalene;
Y ₁ is vinyl or a formula -CH ₂ -CH ₂ -Q group, where Q is _{-Cl, -Br, -F, -OSO 3} H, -SSO 3 H, -OCO-CH 3, -OPO 3 (C ₁ -C ₄ alkyl) ₂ , -OCO-C ₆ H ₅ , -OSO ₂ -C ₁ -C ₄ alkyl, or -OSO ₂ -N (C ₁ -C ₄ alkyl) ₂ .
X ₁ and X ₁ 'are each independently selected from halogen, hydroxy, 3-carboxy-pyridin-l-yl, 4-carboxy-pyridin-l-yl, 2-carbamoyl-pyridin-l-yl, C ₁ -C ₄ alkyl, A substituted or unsubstituted amino group, an N-heterocyclic group which may further contain a hetero atom, or a substituent of the following general formula (3);
(3)

In this formula,
k is 0 to 2;
R ₁₀ is hydrogen or a substituted or unsubstituted C ₁ -C ₄ alkyl group;
R ₁₁ is hydrogen, sulfo, halogen, C ₁ -C ₄ alkyl, C ₁ -C ₄ alkoxy, or carboxyl group;
Y ₂ is as defined for Y ₁ ,
Z ₁ each independently represents hydrogen, a hydroxyl group, an amino group, acetylamide, phenylamide, sulfo, a C ₁ -C ₆ alkyl group or a C ₁ -C ₆ alkoxy group;
Z ₂ is an amino group optionally substituted by C ₁ -C ₄ alkyl, C ₁ -C ₄ alkoxy, or an N-heterocyclic group which may further contain a heteroatom, or a group represented by the following general formulas 3a, 3b, 3c, 3d Lt; / RTI >
&Lt; EMI ID =

In this formula,
h is 0 to 3;
R ₁₂ is hydrogen, a sulfo, a halogen, a C ₁ -C ₄ alkyl group, a C ₁ -C ₄ alkoxy group, or a carboxyl group;
Y ₃ is as defined for Y ₁ ,
&Lt; EMI ID =

In this formula,
D is 0 to 3;
v is 1 to 6;
Y ₄ is as defined for Y ₁ ,
&Lt; Formula 3c >

In this formula,
o is 0 to 3;
R ₁₃ is hydrogen, sulfo, halogen, a C ₁ -C ₄ alkyl group, a C ₁ -C ₄ alkoxy group, or a carboxyl group;
Y < ₅ > is as defined for Y < ₁ &
<Formula 3d>

In this formula,
q is 0 to 3;
r is 0 to 2;
M ₁ is hydrogen, silver or an alkali metal;
R ₁₄ is hydrogen, a hydroxy group, a halogen, a cyano, a C ₁ -C ₄ alkoxy group, a C ₁ -C ₄ alkoxycarbonyl, or a carbonyl group. The reactive dye composition according to claim 1, wherein R ₁ , R ₂ , R ₅ , R ₆ , R ₇ and R ₈ are hydrogen. The reactive dye composition according to claim 1, wherein X ₁ in the formula ( ₁₎ is a halogen. 2. The reactive dye composition according to claim 1, wherein Z < ₂ > in the general formula (1)
&Lt; EMI ID =

In this formula,
h is 0 to 3;
R ₁₂ is hydrogen, a sulfo, a halogen, a C ₁ -C ₄ alkyl group, a C ₁ -C ₄ alkoxy group, or a carboxyl group;
Y &lt; ₃ &gt; is the same as defined in Y &_lt; 1 &gt; 5. The reactive dye composition according to claim 4, wherein the formula (3a)
&Lt; Formula 4 >

The reactive dye composition according to claim 1, wherein the compound of formula (1) is a compound of formula (5).
&Lt; Formula 5 >

The reactive dye composition according to claim 1, wherein Ar ₁ in the formula (2) is naphthalene. The reactive dye composition according to claim 1, wherein m 'in Formula 2 is 3. The reactive dye composition according to claim 1, wherein R ₃ in the formula (2) is sulfo (-SO ₃ H) and R ₄ and R ₉ are amino groups. 2. The reactive dye composition according to claim 1, wherein X &lt; ₁ &gt; The reactive dye composition according to claim 1, wherein Y ₁ in Formula 2 is? CH ₂ -CH ₂ -OSO ₃ H. The reactive dye composition according to claim 1, wherein the compound of formula (2) is a compound of formula (6).
(6)

The reactive dye composition according to claim 1, wherein the compound of formula (1) and the compound of formula (2) are 70:30 to 1:99 based on the total weight of the reactive dye composition. The reactive dye composition according to claim 1, wherein the compound of formula (1) and the compound of formula (2) are in a ratio of 40:60 to 5:95 based on the total weight of the reactive dye composition. Characterized in that the reactive dye composition according to any one of claims 1 to 14 is used for dyeing a fiber material comprising nitrogen or a hydroxy group. 16. The method of claim 15, wherein the nitrogen-containing fiber material is natural or synthetic polyamide fibers. 16. The method of claim 15, wherein the fiber material comprising the hydroxy group is a cellulose fiber.

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