Disperse blue dye, dye product containing the same and application thereof

Abstract

The present invention belongs to the technical field of disperse dyes, and specifically relates to a disperse blue dye, a dye product containing the same, and an application thereof. The disperse blue dye structure retains the 2,4-dinitro-6-chloro(bromo)phenyl structure of the diazo component, and the coupling component functional group is changed from the original acetoxyethyl to a long-chain ester group or ether group with good compatibility with synthetic fibers, which improves the molecular weight of the dye and the sublimation fastness of the dye on the one hand, and improves the thermal migration fastness and washing fastness of the dye molecule on the other hand. The dye color light is similar to disperse blue 79, can be used alone, or replace disperse blue 79 for color matching, and can have a good application effect.

Description

Technical Field

[0001] The invention belongs to the technical field of disperse dyes, and in particular relates to a disperse blue dye, a dye product containing the disperse blue dye, and applications thereof. Background Art

[0002] T400 fabric is a leader in composite elastic fiber, made of PET and PTT polyesters spun in parallel. Its two highlights are its superb elasticity and soft feel. After wet heat treatment, T400 fiber will form a permanent spiral curling structure with an elastic recovery rate of more than 95%. Moreover, its fiber cross-section is bone-shaped, which is not only fluffy and soft, but also has superb moisture absorption and perspiration function. T800 fabric is upgraded on the basis of T400, and is a new type of elastic fiber composited by PBT+PET. It has better elasticity than T400 and is more affordable. The double helix structure of T800 makes its elastic recovery higher than T400, and its feel is softer and has a super cotton feel. Moisture absorption and quick drying are also a major feature of T800, which is 8 times faster than cotton and twice as hygroscopic as ordinary polyester.

[0003] However, high-elastic polyester fibers have low color fastness, which is mainly related to their fiber characteristics. Due to their fine fibers and large specific surface area, a large amount of dyes are adsorbed on the fiber surface, which makes some dyes less adherent and less water fastness. In addition, dyes are prone to thermal migration during complex finishing or when heated, and the migration from the inside of the fiber to the fiber surface is more obvious than that of ordinary fibers, causing fading. Therefore, the color fastness of high-elastic fibers is generally worse than that of conventional fibers. Summary of the invention

[0004] In view of this, the object of the present invention is to provide a disperse blue dye, a dye product containing the same and an application thereof in view of the technical problems existing in the prior art.

[0005] The first object of the present invention is to provide a disperse blue dye.

[0006] In order to achieve the above object, the present invention adopts the following technical solution:

[0007] A disperse blue dye, the structural formula of which is shown in Formula I,

[0008]

[0009] Wherein, X is selected from chlorine or bromine, R1 and R2 are each independently selected from -(CH2CH2O) m R3, -COOR4 or -CO(CH2) mCOOR4; m = 0, 1, 2 or 3; R3 is selected from -CH2CH2CN, -COC6H5, -C6H5, -CH3, -CH2CH3 or -CH(CH3)2; R4 is selected from -CH3, -CH2CH3 or -CH(CH3)2.

[0010] In the disperse blue dye structure disclosed in the present invention, R1 and R2 are vinyl ether or ester structures, which are beneficial to improving the affinity between the dye molecules and the synthetic fibers and improving the lifting performance of the dye molecules.

[0011] Exemplarily, the structure of the disperse blue dye is shown in Table 1.

[0012] Table 1

[0013]

[0014]

[0015] The dye structure of the present invention retains the 2,4-dinitro-6-chloro(bromo)phenyl structure of the diazo component, and the coupling component functional group in the dye is changed from the original acetoxyethyl to a long-chain ester group or ether group with good compatibility with synthetic fibers, which improves the molecular weight of the dye and the sublimation fastness of the dye, and improves the thermal migration fastness and washing fastness of the dye molecule. The color tone of the dye is similar to that of Disperse Blue 79, and can be used alone or in place of Disperse Blue 79 for color matching, and both have good application effects.

[0016] A second object of the present invention is to provide a dye product comprising the disperse blue dye as described above.

[0017] A dye product comprises one or more structures of the above-mentioned disperse blue dye, an auxiliary agent and water, wherein the mass ratio of the disperse blue dye to the auxiliary agent is 0.1-1.85:1, and the mass ratio of the total mass of the disperse blue dye and the auxiliary agent to water is 0.1-1.5:1.

[0018] Furthermore, the auxiliary agent includes one or more of a dispersant, a bactericide, a thickener, and a dust suppressant.

[0019] Furthermore, the dispersant is selected from one or more of sodium methylenebismethanesulfonate, sodium methylenebisnaphthalenesulfonate, sodium ligninsulfonate, sodium methylenebisnaphthalenesulfonate, alkyl sulfonates, butyl naphthalenesulfonates, alkylphenol polyoxyethylene ethers, fatty acid polyoxyethylene ethers, and lignin sulfonates.

[0020] The third object of the present invention is to provide a use of the dye product as described above.

[0021] The invention discloses an application of a disperse blue dye product in dyeing and printing of hydrophobic materials or blended materials.

[0022] Furthermore, the hydrophobic material or blended material includes one or more of acetate fiber, cotton, nylon, polyester, polyamide, polyester, acrylic and spandex.

[0023] Furthermore, the dye product is used in dyeing and printing of high-elastic polyester fibers.

[0024] Compared with the prior art, the disperse blue dye disclosed in the present invention retains the 2,4-dinitro-6-chloro(bromo)phenyl structure of the diazo component in its structure, and the functional group of the coupling component is changed from the original acetoxyethyl group to a long-chain ester group or ether group with good compatibility with synthetic fibers, which improves the molecular weight of the dye and the sublimation fastness of the dye on the one hand, and improves the thermal migration fastness and water washing fastness of the dye molecules on the other hand. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] The word "embodiment" used here as an "exemplary" does not necessarily mean that any embodiment described is superior to or better than other embodiments. Unless otherwise specified, the performance index tests in the embodiments of this application are performed using conventional test methods in the art. It should be understood that the terms described in this application are only used to describe specific implementation methods and are not used to limit the content disclosed in this application.

[0027] Unless otherwise specified, the technical and scientific terms used in this document have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs; other experimental methods and technical means not specifically specified in this application refer to experimental methods and technical means commonly used by ordinary technicians in this field.

[0028] The terms "substantially" and "approximately" used herein are used to describe small fluctuations. For example, they can refer to less than or equal to ±5%, such as less than or equal to ±2%, such as less than or equal to ±1%, such as less than or equal to ±0.5%, such as less than or equal to ±0.2%, such as less than or equal to ±0.1%, such as less than or equal to ±0.05%. The numerical data represented or presented in the range format herein are used only for convenience and brevity, and should therefore be flexibly interpreted as including not only the values ​​clearly listed as the limits of the range, but also all independent values ​​or sub-ranges contained in the range. For example, the numerical range of "1-5%" should be interpreted as including not only the clearly listed values ​​of 1% to 5%, but also the independent values ​​and sub-ranges within the range shown. Therefore, independent values ​​such as 2%, 3.5% and 4% and sub-ranges such as 1%-3%, 2%-4% and 3%-5% are included in this numerical range. This principle also applies to the range of only one numerical value. In addition, such an interpretation applies regardless of the width of the range or the characteristics described.

[0029] In order to better illustrate the content of the present application, numerous specific details are provided in the specific examples below. It should be understood by those skilled in the art that the present application can also be implemented without certain specific details. In the embodiments, some methods, means, instruments, equipment, etc. well known to those skilled in the art are not described in detail in order to highlight the main purpose of the present application.

[0030] Under the premise of no conflict, the technical features disclosed in the embodiments of the present application can be combined arbitrarily, and the resulting technical solutions belong to the contents disclosed in the embodiments of the present application.

[0031] Examples 1 to 8

[0032] Take 40g of B1 dye filter cake, add 55g of dye dispersant MF, 0.5g of fungicide, 4g of thickener, 0.5g of dust suppressant, add 200g of water and grind to diffusivity level 4-5 to obtain liquid commercial dye L1 (Example 1), or spray dry to obtain powder or granular commercial dye S1 (Example 5).

[0033] According to the above method, disperse dyes B2-B4 are commercially processed to obtain liquid commercial dyes L2-L4 of Examples 2-4 and solid commercial dyes S2-S4 of Examples 6-8.

[0034] Examples 9-16

[0035] Take 45g of B5 dye filter cake, 40g of dye dispersant NNO, 15g of alkylphenol polyoxyethylene ether, 1g of fungicide, 3g of thickener, 1g of dust suppressant, add 100g of water and grind to diffusivity level 4-5 to obtain liquid commercial dye L5 (Example 9), or spray dry to obtain powder or granular commercial dye S5 (Example 13).

[0036] B6-B8 are commercially processed according to the above method to obtain liquid commercial dyes L6-L8 of Examples 10-12 and solid commercial dyes S6-S8 of Examples 14-16.

[0037] In order to further demonstrate the beneficial effects of the present invention and to better understand the present invention, the application performance of the disperse blue dye product disclosed in the present invention is further illustrated by the following measurement tests, but it should not be understood as a limitation of the present invention. The product properties obtained by other measurement experiments conducted by technicians in this field based on the above invention content and the applications based on the above properties are also regarded as falling within the protection scope of the present invention.

[0038] Experimental Example 1

[0039] Take the liquid or solid dye of Example 1-16, and perform dyeing test on the dye according to the general conditions for dyeing determination (GB / T2374) and the determination method of color intensity of disperse dyes (GB / T 2394), and select the color sample of 1:1 standard depth using the standard depth color card (GB / T 4841.1). The following dye performance test is performed on the color sample of 1:1 standard depth.

[0040] The water fastness of the dye was tested according to ISO105C06C2S method, and the results are as follows.

[0041] Table 2 Comparison of water fastness of dye products of the present invention and disperse blue 79

[0042] Polyester Acetate cotton Nylon Polyester Acrylic wool Disperse Blue 79 2-3 4-5 3 4-5 3-4 3 B1 3 5 4 4-5 4 3-4 B2 3 5 4 5 4 3-4 B3 4 5 4-5 5 5 5 B4 4-5 5 4 5 5 4-5 B5 4 5 4 5 4-5 4 B6 4 5 4 5 4-5 4 B7 4-5 5 4-5 5 5 4-5 B8 4 5 4-5 5 5 4-5

[0043] The sublimation fastness test results show that the sublimation fastness of the dye disclosed in the present invention is better than that of Disperse Blue 79 to varying degrees.

[0044] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A disperse blue dye, characterized in that: The structural formula is shown in Formula I, Wherein, X is selected from chlorine or bromine, R1 and R2 are each independently selected from -(CH2CH2O) m R3, -COOR4 or -CO(CH2) m COOR4; m = 0, 1, 2 or 3; R3 is selected from -CH2CH2CN, -COC6H5, -C6H5, -CH3, -CH2CH3 or -CH(CH3)2; R4 is selected from -CH3, -CH2CH3 or -CH(CH3)2.

2. A dye product, characterized in that: The disperse blue dye, auxiliary agent and water as claimed in claim 1 comprising one or more structures, wherein the mass ratio of the disperse blue dye to the auxiliary agent is 0.1-1.85:1, and the mass ratio of the total mass of the disperse blue dye and the auxiliary agent to water is 0.1-1.5:

1.

3. The dye product according to claim 2, characterized in that: The auxiliary agent includes one or more of a dispersant, a bactericide, a thickener, and a dust suppressant.

4. The dye product according to claim 3, characterized in that: The dispersant is selected from one or more of sodium methylenebismethanesulfonate, sodium methylenebisnaphthalenesulfonate, sodium ligninsulfonate, sodium methylenebisnaphthalenesulfonate, alkyl sulfonates, butyl naphthalenesulfonates, alkylphenol polyoxyethylene ethers, fatty acid polyoxyethylene ethers, and lignin sulfonates.

5. The use of the dye product according to any one of claims 2 to 4, characterized in that: The dye product is used in dyeing and printing of hydrophobic materials or blended materials.

6. The use according to claim 5, characterized in that: The hydrophobic material or blended material includes one or more of acetate fiber, cotton, nylon, polyester, polyamide, polyester, acrylic fiber and spandex.

7. The use according to claim 6, characterized in that: The dye product is used in dyeing and printing of high-elastic polyester fibers.

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