KR20190096125A - Disperse dyes composites and methods of dyeing fiber using the same - Google Patents

Abstract

The present invention relates to a disperse dye composition with high fastness, which exhibits excellent exhaustion degree, and a fiber dyeing method using the same. The disperse dye composition of the present invention comprises 1 to 99 parts by weight of a compound of chemical formula 1, 1 to 99 parts by weight of a compound of chemical formula 2, and 1 to 99 parts by weight of a compound of chemical formula 3.

Description

High color fastness disperse dye composition and dyeing method of fiber using same {DISPERSE DYES COMPOSITES AND METHODS OF DYEING FIBER USING THE SAME}

The present invention relates to a disperse dye composition and a method of dyeing fibers using the same, and more particularly, to a dye composition of a dye and a disperse dye having excellent color fastness, such as daylight, water, and sublimation, and having a high concentration of color in dyeing of polyester fibers. It is about a method.

Recently, various sportswear or various textile industries have been developed, and the interest in dyes having excellent color fastness while seeking bright and vivid colors in the dye and dye markets is expanding.

In the case of the conventional disperse dyes sold by the company in accordance with these demands, dyes such as the compounds of the following formulas are used, but high dyeability and dark color can be expressed, but despite these advantages, the low fastness of water fastness It has been restricted in use.

Accordingly, the present inventors, while researching to compensate for the shortcomings of the dyes such as the compound, by knowing that the dyeing proceeds with a mixed dye mixed with a high-fastness product disperse dye, it is possible to achieve excellent fastness to complete the present invention It became.

The problem to be solved by the present invention is to provide a disperse dye composition having excellent fastness by mixing disperse dyes in an appropriate ratio.

In addition, another problem to be solved by the present invention is to provide a method for dyeing a blend fiber material containing a polyester or the like using the disperse dye composition, in this case, it is possible to obtain excellent fastness compared to the conventional dye have.

The present invention provides a dispersion dye composition comprising 1 to 99 parts by weight of a compound of Formula 1, 1 to 99 parts by weight of a compound of Formula 2, and 1 to 99 parts by weight of a compound of Formula 3 to achieve the above object. to provide.

[Formula 1]

[Formula 2]

In Formula 2, R ₁ is a hydrogen atom or (C1-C18) alkyl, R ₂ is (C1-C18) alkyl or-(CH ₂ ) _n -CO ₂ R _a , n is an integer of 1 to 8 , R _a is (C1-C18) alkyl or (C1-C8) alkoxy (C1-C8) alkyl.

[Formula 3]

In Chemical Formula 3, R ₃ is (C 1 -C 6) alkyl, and R ₄ is (C 1 -C 6) alkyl.

When the compounds selected from the group consisting of the compounds of Formula 1 and Formula 2 and Formula 3 are mixed, it is possible to express a higher concentration of vivid color than the existing dye composition, and excellent light fastness, sublimation fastness, water fastness, etc. Eggplant can prepare a disperse dye composition.

Disperse dye composition of the red series prepared with the compound of Formula 1 and the disperse dye composition of the red series prepared with the compound of Formula 2 has a problem that difficult to express a dark color due to the staining concentration, the red made of the compound of Formula 3 The dispersion dye composition of the series has a problem in that the water fastness and sublimation fastness falls.

Thus, the dispersion dye composition according to the present invention can be obtained by combining the compound of Formula 1 and the compound of Formula 2 with the compound of Formula 3 of the desired high dyeing concentration, excellent daylight fastness and sublimation fastness, water fastness grade .

In one embodiment of the present invention, in the compound of Formula 2, R ₁ is (C1-C8) alkyl, R ₂ is (C1-C8) alkyl, n is an integer of 1 to 3, R _a is (C1 ~ C8) alkyl or (C1-C4) alkoxy (C1-C4) alkyl.

In one embodiment of the present invention, in the compound of Formula 3, R ₃ and R ₄ may be independently methyl or ethyl.

In one embodiment of the present invention, the disperse dye composition may include 30 to 90 parts by weight of the compound of Formula 1, 1 to 50 parts by weight of the compound of Formula 2, and 1 to 50 parts by weight of the compound of Formula 3.

Other components, such as a solubilizer, a buffer, an antifreezing agent, can be added to the composition of this invention within the range which does not impair the objective and effect of this invention. Such other additives may be added in the range of approximately 1 to 20 weight percent based on the total weight of the composition.

The solubilizer is an additive component that prevents agglomeration of dyes and helps dissolution, and typical examples thereof include urea, thiourea, and caprolactam. The buffer is a component that buffers the pH to prevent degradation of the dye during storage and storage, and representative examples thereof include sodium phosphate, potassium phosphate, sodium acetate and the like. The freezing inhibitor lowers the freezing point during liquid freezing and serves as a component that does not freeze the liquid dye. Representative examples include ethylene glycol, polyethylene glycol, and polyalcohol compounds.

The present invention also provides a method for dyeing a fiber material using the dispersion dye composition.

Examples of the fibrous material include semisynthetic fibers, synthetic fibers, regenerated fibers, or blended fibers of synthetic fibers and natural fibers. Examples of such semisynthetic fibers include, for example, acetate, synthetic fibers such as polyester, polyamide, poly Vinyl, polyurethane-based fibers, recycled fibers include cellulose and the like.

The disperse dye compositions also exhibit high dyeing rates and good fastnesses when dyed in blended fibers of polyester fibers, for example blended fibers comprising polyester and cellulose fibers.

In one aspect of the present invention, a method for dyeing a semi-synthetic fiber, synthetic fibers, regenerated fibers, or blended fibers of synthetic fibers and natural fibers using the dispersion dye composition is provided.

In one aspect of the present invention, using the dispersion dye composition, there is provided a method for dyeing polyester fiber or polyester composite fiber.

In one aspect of the present invention, the blend fiber may include polyester fibers and cellulose fibers.

The disperse dye composition according to the present invention can be used in various methods, for example, cold pad placement method, continuous dyeing method, dyeing method, printing method, printing method, and preferably used in continuous dyeing method and dyeing method.

In particular, as the continuous dyeing method, an acid-binding agent (for example, sodium carbonate, sodium bicarbonate, etc.) is mixed with a padding liquid, padded by a known method and dyed by dry heat or steaming, and after the dye padding inorganic Neutral salts (e.g., anhydrous sodium sulfate, salt, etc.) and acid binders (e.g., caustic soda, sodium silicate, etc.) are mixed and padded in the padding solution, and the bathing padding is dyed by dry heat or steaming by a known method. Law can be used.

The dyeings and printings obtained according to the present invention are excellent in build-up and leveling. In addition, it is excellent in coloration, high fiber-dye bonding stability, and excellent in light fastness as well as prevention of contamination to other fibers.

Since the disperse dye composition according to the present invention contains a combination of specific compounds, it shows excellent dyeing rate when dyeing blended fiber materials including polyester, etc., and has excellent fastness such as daylight, water, sublimation, and high concentration of color. It is possible.

Hereinafter, embodiments of the present invention will be described in detail so that those skilled in the art can easily practice the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention.

Preparation Example 1 Preparation of Disperse Dye Composition Containing Compound of Formula 1

Water and a dispersant were mixed with the compound of Formula 1 and milled to a particle size of 1 μm or less and 90% or more, and then the pH was adjusted. This was spray-dried to obtain a dispersion dye composition comprising a compound of formula (1).

[Formula 1]

Preparation Example 2 Preparation of Disperse Dye Composition Containing Compound of Formula 4

Using the same method as Preparation Example 1 to the compound of formula 4 to obtain a disperse dye composition comprising a compound of formula (4).

[Formula 4]

Preparation Example 3 Preparation of Disperse Dye Composition Containing Compound of Formula 5

Using the same method as Preparation Example 1 to the compound of formula 5 to obtain a disperse dye composition comprising a compound of formula (5).

[Formula 5]

Preparation Example 4 Preparation of Disperse Dye Composition Containing Compound of Formula 6

Using the same method as Preparation Example 1 to the compound of formula 6 to obtain a disperse dye composition comprising a compound of formula (6).

[Formula 6]

Preparation Example 5 Preparation of Disperse Dye Composition Containing Compound of Formula 7

Using the same method as Preparation Example 1 to the compound of Formula 7 to obtain a disperse dye composition comprising a compound of the formula (7).

[Formula 7]

Preparation Example 6 Preparation of Disperse Dye Composition Containing Compound of Formula 8

Using the same method as Preparation Example 1 to the compound of formula 8 to obtain a disperse dye composition comprising a compound of formula (8).

[Formula 8]

[Comparative Examples 1 and 2]

Disperse dye composition comprising the composition of Preparation Example 1 and / or the composition of Preparation Example 2 was prepared as shown in Table 1.

[Examples 1 to 6]

Disperse dye compositions comprising the composition of Preparation Example 1, and the composition selected from the compositions of Preparation Examples 2 to 6 were prepared as shown in Table 1 below.

Combination dye composition ratio of Comparative Examples and Examples is shown in Table 1 below.

Composition Compound dye composition ratio Comparative Example 1 Preparation Example 2 100 parts Comparative Example 2 Preparation Example 1 70
Preparation Example 2 15 Example 1 Preparation Example 1 20
Preparation Example 2 20
Preparation Example 5 60 Parts Example 2 Preparation Example 1 30
Preparation Example 3 30
Preparation Example 5 40 Example 3 Preparation Example 1 20
Preparation Example 4 Part 10
Preparation Example 5 70 Example 4 Preparation Example 1 20
Preparation Example 2 20
Preparation Example 6 60 parts Example 5 Preparation Example 1 30
Preparation Example 3 30
Preparation Example 6 40 parts Example 6 Preparation Example 1 20
Preparation Example 4 10 parts
Preparation Example 6 40 parts

[Dyeing and Fastness Evaluation of Dispersant Composition]

In a liquid containing 100 g of polyester, 1 g of the disperse dye composition of Comparative Examples 1 to 2 and Examples 1 to 6 and 0.5 g / l of a leveling agent, adjusted to pH 4.0 to pH 5.0 by 80% acetic acid at room temperature. It was immersed in the liquid ratio of 1:10. The dyeing was performed for 60 minutes by heating to 60 ° C. at a rate of 3 ° C./min and then to 130 ° C. at a rate of 1 to 2 ° C./min. The saline solution is then cooled to 80 ° C. and the dyed polyester fabric washed, then 70-80 ° C. for 20 minutes in a bath comprising 4 ml / l 36% sodium hydroxide solution and 4 g / l sodium hydrogen sulphate solution. The reduction was washed under the temperature of. The processed dyeings were then washed with water and dried.

Daylight fastness was carried out by AATCC 16E method, water fastness was progressed by ISO-105-E01, and sublimation fastness by ISO-105-P01.

The results of the evaluation of dyeing rate and fastness at the same concentration are shown in Table 2 below.

As shown in Table 2, when dyeing the polyester using the disperse dye composition of Examples 1 to 6 to mix the compounds of Formula 1 to 8, than when using the disperse dye composition of Comparative Examples 1 and 2, Excellent dyeing rate.

Moreover, when dyeing polyester using the composition of Examples 1-6, it can be confirmed that it has the outstanding daylight, sublimation, and water fastness compared with the case of using the dispersion dye composition of Comparative Examples 1-2.

As described above in detail specific parts of the present invention, it is apparent to those skilled in the art that such specific descriptions are merely preferred embodiments, and thus the scope of the present invention is not limited thereto. something to do. Thus, the substantial scope of the present invention will be defined by the appended claims and their equivalents.

Claims (6)

1 to 99 parts by weight of the compound of Formula 1, 1 to 99 parts by weight of the compound of Formula 2, and 1 to 99 parts by weight of the compound of Formula 3;
[Formula 1]

[Formula 2]

In Chemical Formula 2,
R ₁ is a hydrogen atom or (C ₁ -C 18) alkyl,
R ₂ is (C 1 -C 18) alkyl or-(CH ₂ ) _n -CO ₂ R _a ,
n is an integer from 1 to 8,
R _a is (C 1 -C 18) alkyl or (C 1 -C 8) alkoxy (C 1 -C 8) alkyl,
[Formula 3]

In Chemical Formula 3,
R ₃ is (C 1 -C 6) alkyl,
R ₄ is (C 1 -C 6) alkyl. The compound of claim 1, wherein in the compound of Formula 2, R ₁ is (C1-C8) alkyl, R ₂ is (C1-C8) alkyl, n is an integer of 1 to 3, R _a is (C1-C8) It is an alkyl or (C1-C4) alkoxy (C1-C4) alkyl, Disperse dye composition. The dispersion dye composition of claim 1, wherein in the compound of Formula 3, R ₃ and R ₄ are independently methyl or ethyl. The disperse dye composition according to claim 1, comprising 30 to 90 parts by weight of the compound of Formula 1, 1 to 50 parts by weight of the compound of Formula 2, and 1 to 50 parts by weight of the compound of Formula 3. A method of dyeing semisynthetic fibers, synthetic fibers, regenerated fibers, or blended fibers of synthetic fibers and natural fibers using the dispersion dye composition according to claim 1. 6. The method of claim 5 wherein the blended fibers comprise polyester fibers and cellulose fibers.