KR20050018444A - Reactive yellow dyestuff composition - Google Patents

Abstract

PURPOSE: Provided is reactive yellow dyestuff composition expressing deep and rich yellow color in fabric dyeing and having excellent stability to alkali component suitable for cold-pad dyeing and durability and homogeneous dyeing property, as well as build-up property. CONSTITUTION: The dyestuff composition comprises 40-90 wt.% of compound represented by formula(I) and 10-60 wt.% of compound represented by formula(II) (wherein R1, R2 are independently hydrogen, methyl, ethyl, methoxy, ethoxy, carboxyl, amino or hydroxyl group; R3 is hydrogen, methyl, ethyl, methoxy, ethoxy or sulfone group; R4, R5 are independently hydrogen, methyl, ethyl, methoxy, ethoxy, aceto, ureido or methylaceto group, and X is -CH2CH2SSO3H- or -CH2=CH2 and n is integer of 1-3.) The deep and rich yellow color means Dyeing power of the dye higher than molar absorptivity. Build-up means long term dyeing expression.

Description

Reactive yellow dyestuff composition

The present invention relates to reactive yellow dye compositions suitable for dyeing cotton or cotton blended fabrics such as cellulose, cellulose / nylon and the like in yellow. Specifically, the present invention relates to a dye composition composed of 40 to 90% by weight of the compound represented by the following general formula (I) and 10 to 60% by weight of the compound represented by the following general formula (II). The dye composition of the present invention exhibits a very deep yellow color compared to other dyes of the same concentration at the time of dyeing, excellent stability against alkali when cold pad dyeing, excellent leveling and fastness, and low contamination to other fibers. It has excellent build-up properties.

[Ⅰ]

      [II]

In the above formulas, R _1, R ₂ are hydrogen, methyl group, ethyl group, methoxy group, ethoxy group, carboxyl group, amino group or hydroxyl group, R ₃ is hydrogen, methyl group, ethyl group, methoxy group, ethoxy group or sulfone group, R ₄ , R ₅ are hydrogen, methyl group, ethyl group, methoxy group, ethoxy group, acet group, ureide group or methyl acet group, X is -CH ₂ CH ₂ OSO ₃ H, -CH ₂ CH ₂ SSO ₃ H or -CH ₂ = CH ₂ and n is an integer of 1 to 3.

In the present invention, the deep yellow color means that dyeing power of dye (Dyeing power: DP) is higher than molar extinction coefficient when the fiber is dyed yellow according to a predetermined concentration using a yellow dye. Excellent means good dyeing property and excellent property of maintaining color development for a long time.

Reactive yellow dyes conventionally used for dyeing fabrics such as cellulose, cellulose / nylon, etc. in yellow are represented by naphthyl azobenzene yellow dye represented by the following structural formula (III) and vinyl sulfone yellow dyes represented by the following structural formula (IV). have.

[III]

       [IV]

Yellow dyes require high dyeability, but the compound represented by the above formula (III) has a problem that the dyeability is poor. So many researchers have been trying to obtain a deep reactive yellow dye showing a deep yellow color, but it is still insufficient as a dye that can satisfy a variety of properties. For example, even when a dark reactive yellow dye is obtained, it is not satisfactory in the level of homogeneity and the degree of printing, and in the case of the level of the level of the compound represented by the above structural formula (IV) when the level of the level of the compound is represented by the above formula (IV) There were many cases that did not come out or were very contaminated with other fibers and were unsatisfactory with fastness. Contamination to other fibers here means that when dyeing cotton / nylon blended fibers with reactive dyes, the reactive dyes should be dyed only on cotton, but are also weakly dyed on nylon.

         Korean Patent Registration No. 2003-368989 discloses a vinylsulfone-based reactive orange dye of formula (V), which can be represented by formula (II). This dye has the advantages of wide dyeing and printing dyeing, and it has the advantage of being less polluted to other fibers when dyeing fabrics such as cellulose, cellulose / nylon, etc., but because it is used as a yellow dye, the color is close to orange and deep. It did not show color.

[Ⅴ]

Therefore, it is possible to dye cold pads with excellent alkali stability, and it is desirable to develop environmentally friendly dyes that show high DP with a small amount because they have good staining, overall fastness and uniformity against other fibers and at the same time have deep yellow color. There is a situation.

An object of the present invention is to display a very deep yellow when dyed fabrics such as cellulose, cellulose / nylon, yellow, excellent stability to the alkali components present in the salt bath, cold pad dyeing, fastness and uniformity This excellent, less staining on other fibers other than cellulose at the time of dyeing to obtain the desired color and to provide a reactive yellow dye composition that can reduce the amount of waste water due to less water consumption when washing.

The present inventors have newly developed a dye represented by the general formula (I) having a very bright and deep yellow color containing all of a naphthyl azo group, a chloro triazine group, and a vinyl sulfone group, and a general formula showing excellent contamination to other fibers. When a dye composition is formed by containing a certain amount of the yellow dye with strong red taste represented by (II), it is found that a deep yellow color can be obtained when dyeing, and a yellow dye composition with good fastness and low contamination to other fibers can be obtained. The present invention has been completed.

The present invention relates to a reactive yellow dye composition prepared by mixing 40 to 90% by weight of the compound represented by the following general formula (I) and 10 to 60% by weight of the compound represented by the following general formula (II).

[Ⅰ]

[II]

In the above formulas, R _1, R ₂ are hydrogen, methyl group, ethyl group, methoxy group, ethoxy group, carboxyl group, amino group or hydroxyl group, R ₃ is hydrogen, methyl group, ethyl group, methoxy group, ethoxy group or sulfone group, R ₄ , R ₅ are hydrogen, methyl group, ethyl group, methoxy group, ethoxy group, acet group, ureide group or methyl acet group, X is -CH ₂ CH ₂ OSO ₃ H, -CH ₂ CH ₂ SSO ₃ H or -CH ₂ = CH ₂ and n is an integer of 1 to 3.

The dye of the general formula (I) used in the composition of the present invention is very light yellow in the disazo form, characterized by high depth and uniformity, and has a large number of sulfone groups in its structure, which shows excellent solubility, making it easy to prepare liquid dyes. It is easy.

On the other hand, the yellow dye of the general formula (II) can provide a yellow dye having an effect on high depth and at the same time excellent pollution and fastness, compared to the dye of the general formula (I) alone does not obtain excellent contamination and overall fastness.

The reactive yellow dye composition prepared by adjusting the mixture of general formula (I) and general formula (II) in the above ratios exhibits a very deep yellow color in dyeing, printing and cold pad dyeing, and has excellent stability against alkalis. It was found to have excellent leveling and fastness, and less contamination to other fibers.

The present invention will be described in detail with reference to the following Examples.

Example 1

75 parts by weight of the dye compound of formula (VI) which can be represented by the general formula (Ⅰ)

  [VI]

A dye composition was prepared by mixing 25 parts by weight of the dye compound of the following formula (VII), which may be represented by Formula (II).

[Ⅶ]

The dye composition thus prepared is dyed with nylon in cotton dyeing. After dyeing, wash the cotton and nylon, and then the nylon is dried and the cotton is dried after shopping. The degree of contamination of the dried nylon was checked.

Dyeing strength and staining degree of the cotton obtained using the dried cotton obtained in Example 1 and the conventional yellow dye compounds described in the following [Table 1] were measured and the results are shown in the following [Table 1]. DP of the present dye composition was superior to 151% based on the conventional dye compound, the wash fastness to nylon was the dye composition of the present embodiment, although the conventional dye compounds described in the following [Table 1] were second and fourth class Was excellent in 5th grade.

TABLE 1

Dye Composition of Example 1 Conventional dye compound D.P Pollution Reactive Yellow Dye D.P Pollution 160% Grade 5 Compound of Structural Formula (III) 100% Grade 4 151% Compound of Structural Formula (IV) 2nd class

Example 2

65 parts by weight of the dye compound of the following structural formula (Ⅷ) which can be represented by the general formula (I) and

[Ⅷ]

A dye composition was prepared by mixing 35 parts by weight of the dye compound of formula (VII), which may be represented by Formula (II).

[Ⅸ]

The dye composition thus prepared is dyed with nylon in cotton dyeing. After dyeing, wash the cotton and nylon, and then the nylon is dried and the cotton is dried after shopping. The degree of contamination of the dried nylon was checked.

Dyeing strength and staining degree of the dried cotton obtained in Example 2 and the cotton obtained using the conventional yellow dye compounds described in the following [Table 2] were measured, and the results are shown in the following [Table 2]. DP of the present dye composition was superior to 153% based on the conventional dye compound, the wash fastness to nylon was the dye composition of the present embodiment, although the conventional dye compounds shown in the following [Table 1] were second and fourth class Was excellent in 5th grade.

TABLE 2

Dye composition of Example 2 Conventional dye compound D.P Pollution Reactive Yellow Dye D.P Pollution 161% Grade 5 Compound of Structural Formula (III) 100% Grade 4 153% Compound of Structural Formula (IV) 2nd class

Example 3

Dye by mixing 61 parts by weight of the dye compound of the formula (VII) and 39 parts by weight of the dye compound of the following formula (II) which can be represented by the general formula (I) The composition was prepared.

[Ⅹ]

The dye composition thus prepared is dyed with nylon in cotton dyeing. After dyeing, wash the cotton and nylon, and then the nylon is dried and the cotton is dried after shopping. The degree of contamination of the dried nylon was checked.

Dyeing strength and staining degree of the dried cotton obtained in Example 3 and the cotton obtained using the conventional yellow dye compounds described in the following [Table 3] were measured, and the results are shown in the following [Table 2]. DP of this example dye composition was superior to 157% based on the conventional dye compound, and the laundry fastness to nylon was the second and fourth grade dye compounds of the following Example 1, but the dye composition of this example Was excellent in 5th grade.

TABLE 3

Dye composition of Example 3 Conventional dye compound D.P Pollution Reactive Yellow Dye D.P Pollution 163% Grade 5 Compound of Structural Formula (III) 100% Grade 4 157% Compound of Structural Formula (IV) 2nd class

The yellow dye composition of the present invention prepared in the above embodiments is excellent in solubility and can be prepared as a liquid composition, there is no dust, and the dissolution process is omitted so that it can be used in an on-site automatic dyeing machine to improve the working environment of the field worker. There are advantages to it.

The dye composition of the present invention exhibits a very deep yellow color when dyed fabrics such as cellulose, cellulose / nylon, and the like, and is excellent in stability against alkali components present in the salt bath, which enables cold pad dyeing, and is fast and stable. Excellent dyeing, less staining of other fibers other than cellulose at the time of dyeing to obtain the desired color and water consumption when washing the water has the effect of reducing the waste water.

Claims (1)

Reactive yellow dye composition formed by mixing 40 to 90 wt% of the compound represented by the following general formula (I) and 10 to 60 wt% of the compound represented by the following general formula (II) [Ⅰ] [II] In the above formulas, R _1, R ₂ are hydrogen, methyl group, ethyl group, methoxy group, ethoxy group, carboxyl group, amino group or hydroxyl group, R ₃ is hydrogen, methyl group, ethyl group, methoxy group, ethoxy group or sulfone group, R ₄ , R ₅ are hydrogen, methyl group, ethyl group, methoxy group, ethoxy group, acet group, ureide group or methyl acet group, X is -CH ₂ CH ₂ OSO ₃ H, -CH ₂ CH ₂ SSO ₃ H or -CH ₂ = CH ₂ and n is an integer of 1 to 3.