A mixture of disperse orange dyes

Abstract

This invention belongs to the field of disperse dye technology, specifically relating to a disperse orange dye mixture. The disperse orange dye mixture disclosed in this invention is a blend of multiple dye compounds. This invention contains an orange component D, such as general formula IV. This component has good colorfastness, and more importantly, this type of molecular structure has good planarity and strong affinity for hydrophobic fibers, making it less prone to fading after dyeing. Therefore, it exhibits excellent water fastness. Blending it with the other components of this invention can improve the overall water fastness and colorfastness of the formulation. The resulting disperse orange dye mixture demonstrates excellent improving power, with water fastness 0.5-1 grade higher than traditional high-wash disperse orange dyes. It is suitable for polyester and polyester / spandex fabrics, especially polyester / spandex fabrics with high spandex content.

Description

Technical Field

[0001] This invention belongs to the field of disperse dye technology, and specifically relates to a disperse orange dye mixture. Background Technology

[0002] With the development of various textile markets, applications have become more diversified and personalized. Clothing fabrics, driven by performance requirements, have moved beyond the previous regulations and standards regarding wash fastness, multi-fiber staining, sublimation, and water immersion fastness. They now better meet the actual performance requirements of clothing fabrics, such as minimizing color change and ensuring a lighter wash color after soaking in hot water with surfactants like laundry detergent. Dye factories refer to this as "water fastness." In recent years, the booming market for sportswear fabrics has meant that traditional high-wash-fastness disperse orange dyes cannot fully meet market demands on polyester / spandex fabrics, especially those with high spandex content, where water fastness needs improvement. Summary of the Invention

[0003] In view of this, the purpose of this invention is to address the technical problems existing in the prior art by providing a high wash fastness disperse orange dye mixture that has significant improvements in lifting force and water fastness compared to traditional high wash fastness disperse orange dyes.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A mixture of disperse orange dyes comprises the following components in mass fractions: 1%–40% of component A having the structure of general formula I, 1–20% of component B having the structure of general formula II, 5%–40% of component C having the structure of general formula III, and 5%–50% of component D having the structure of general formula IV.

[0006]

[0007]

[0008] in,

[0009] R1 is selected from C1-C4 alkyl, benzyl, or...

[0010] R2 is selected from C1 to C4 alkyl or benzyl groups;

[0011] R3 and R4 are each independently selected from the substituted C1 to C4 alkyl groups, wherein the alkyl substituent is selected from -COOR, -OR or -OCOR, and the R group is selected from one of the C1 to C4 alkyl groups;

[0012] R5 is selected from -CN and -NO2;

[0013] R6 and R7 are each independently selected from H, Cl, or Br.

[0014] It is worth noting that, unlike the traditional high-fastness disperse orange dye HXW-FRL, this invention contains an orange component D of general formula IV. This component has good dyeing depth, and more importantly, this type of molecular structure has good planarity and strong affinity for hydrophobic fibers. It is not easy to fade after dyeing, so it has excellent water fastness. When blended with the other components of this invention, it can improve the water fastness and dyeing depth of the entire formula.

[0015] Furthermore, the structure of component A is one or more of general formulas I-1 to I-4.

[0016]

[0017] Furthermore, the structure of component B is one or more of general formulas II-1 to II-3.

[0018]

[0019] Furthermore, the structure of component C is one or more of general formulas III-1 to III-4.

[0020]

[0021]

[0022] Furthermore, the structure of component D is one or more of general formulas IV-1 to IV-4.

[0023]

[0024] Preferably, the mixture comprises the following components by mass: 10-35% of component A, 5-15% of component B, 10-30% of component C, and 20-50% of component D.

[0025] It is worth noting that mixtures within this quality range can be blended to produce a color similar to that of traditional high washable disperse orange HXW-FRL, and can be used as a substitute, or to improve color fastness, especially water fastness, which can be improved by 0.5-1 grades.

[0026] Furthermore, the mixture also includes additives.

[0027] Furthermore, the additives include one or more of dispersants, diffusion agents, and surfactants.

[0028] Furthermore, the additives include one or more of naphthalene sulfonate formaldehyde condensate, alkyl naphthalene sulfonate formaldehyde condensate, and lignin sulfonate.

[0029] It is worth noting that the additives include one or more of the following: naphthalene sulfonic acid formaldehyde condensate (such as dispersant NNO), methyl naphthalene sulfonic acid formaldehyde condensate (dispersant MF), alkyl naphthalene sulfonic acid formaldehyde condensate, benzyl naphthalene sulfonic acid formaldehyde condensate (such as CNF), and lignin sulfonates (such as lignin S-33, 85A).

[0030] Compared with existing technologies, the dye mixture disclosed in this invention contains an orange component D of general formula IV. This component has good dyeing depth, and more importantly, this type of molecular structure has good planarity and strong affinity for hydrophobic fibers, making it less prone to fading after dyeing, thus exhibiting excellent water fastness. Blending it with the other components of this invention can improve the overall water fastness and dyeing depth of the formulation. Compared with commercially available dyes, the dye mixture disclosed in this invention significantly improves these properties; under a dyeing depth of 3% (owf), water fastness is improved by 0.5-1 grade, and the staining of nylon and acrylic fibers in wash fastness is improved by 0.5 grade, while the sublimation fastness of polyester staining is improved by 0.5 grade. Detailed Implementation

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] The term "embodiment" used herein, as an example, is not necessarily to be construed as superior to or better than other embodiments. Performance testing in the embodiments of this application, unless otherwise specified, employs conventional testing methods in the art. It should be understood that the terminology used in this application is merely for describing particular implementations and is not intended to limit the scope of this disclosure.

[0033] Unless otherwise stated, the technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; other experimental methods and technical means not specifically mentioned herein refer to experimental methods and technical means commonly used by one of ordinary skill in the art.

[0034] The disperse orange dye mixture disclosed in this invention contains orange component D, as in general formula IV. This component has good colorfastness, and more importantly, this type of molecular structure has good planarity and strong affinity for hydrophobic fibers, making it less prone to fading after dyeing. Therefore, it has excellent water fastness. When blended with the other components of this invention, it can improve the overall water fastness and colorfastness of the formulation. The resulting disperse orange dye mixture has excellent improving power, and its water fastness is 0.5-1 grade higher than that of traditional high-wash disperse orange dyes. It is suitable for polyester and polyester / spandex fabrics, especially polyester / spandex fabrics with high spandex content.

[0035] To better illustrate the content of this application, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this application can be implemented even without certain specific details. In the embodiments, some methods, means, instruments, and devices well-known to those skilled in the art are not described in detail in order to highlight the main points of this application.

[0036] Without conflict, the technical features disclosed in the embodiments of this application can be combined arbitrarily, and the resulting technical solution belongs to the content disclosed in the embodiments of this application.

[0037] Examples 1-20 are a series of high wash fastness disperse dye mixtures, the formulations of which are shown in Table 1:

[0038] Table 1. Composition of formulations for Examples 1-20 (unit: weight)

[0039]

[0040]

[0041] To further demonstrate the beneficial effects of the present invention and to better understand the present invention, the following test and comparative examples further illustrate the application performance of the disperse orange dye mixtures disclosed in Examples 1-20 of the present invention. However, these should not be construed as limiting the present invention. Other test experiments conducted by those skilled in the art based on the above-described invention to obtain product properties and applications based on the above properties are also considered to fall within the protection scope of the present invention.

[0042] Comparative Example 1: Conventional high-wash disperse orange HXW-FRL, staining depth 3% (owf).

[0043] Dyed fabric: Polyester-spandex fabric (spandex content is 20%).

[0044] Experimental Example 1

[0045] Lifting test

[0046] The dye samples obtained in Examples 1-20 were tested on polyester / spandex fabric. Dye solutions were prepared on polyester / spandex fabric (80 / 20) at concentrations of 0.5%, 1%, 2%, 3%, 4%, and 6% (owf). The pH of the dye solutions was adjusted to 4-4.5, and dyeing was performed using a high-temperature, high-pressure dyeing method. The Integ value of the fabric surface was measured. The experimental results are shown in Table 2.

[0047] Table 2 Results of the performance improvement test of polyester-spandex fabric

[0048]

[0049]

[0050] Experiment Example 2

[0051] Wash fastness, sublimation fastness and immersion fastness tests

[0052] Wash fastness: GB / T 3921.3-1997, eqv ISO 105-C03:1989;

[0053] Sublimation fastness: GB / T 5718-1997, eqv ISO 105-901:1993;

[0054] Water fastness: 60℃×30min, laundry detergent: 5g / L, residual liquid gray card rating.

[0055] The experimental results are shown in Table 3.

[0056] Table 3. Test results of wash fastness, sublimation fastness, and immersion fastness of polyester / spandex fabric.

[0057]

[0058]

[0059] As can be seen from the experimental data in Tables 2 and 3, the dye mixture disclosed in this invention has significantly improved performance compared with the commercially available dye Disperse Orange HXW-FRL; under the condition of dyeing depth 3% (owf), the immersion fastness is improved by 0.5-1 grade, the nylon and acrylic staining fastness in the wash fastness is improved by 0.5 grade, and the sublimation fastness of polyester staining is improved by 0.5 grade.

[0060] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those 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 invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A mixture of disperse orange dyes, characterized in that, It consists of the following components in mass fractions: 1%–40% of component A with the structure of general formula I, 1–20% of component B with the structure of general formula II, 5%–40% of component C with the structure of general formula III, and 5%–50% of component D with the structure of general formula IV. in, R1 is selected from C1-C4 alkyl, benzyl, or... R2 is selected from C1 to C4 alkyl or benzyl groups; R3 and R4 are each independently selected from the substituted C1 to C4 alkyl groups, wherein the alkyl substituent is selected from -COOR, -OR or -OCOR, and the R group is selected from one of the C1 to C4 alkyl groups; R5 is selected from -CN and -NO2; R6 and R7 are each independently selected from H, Cl, or Br.

2. The disperse orange dye mixture according to claim 1, characterized in that, The structure of component A is one or more of I-1 to I-4.

3. The disperse orange dye mixture according to claim 1, characterized in that, The structure of component B is one or more of II-1 to II-3.

4. The disperse orange dye mixture according to claim 1, characterized in that, The structure of component C is one or more of III-1 to III-4.

5. The disperse orange dye mixture according to claim 1, characterized in that, The structure of component D is one or more of IV-1 to IV-4.

6. The disperse orange dye mixture according to claim 1, characterized in that, The mixture comprises the following components by mass fraction: 10-35% of component A, 5-15% of component B, 10-30% of component C, and 20-50% of component D.

7. The disperse orange dye mixture according to claim 1, characterized in that, The mixture also includes additives.

8. The disperse orange dye mixture according to claim 7, characterized in that, The additives include one or more of dispersants, diffusion agents, and surfactants.

9. The disperse orange dye mixture according to claim 8, characterized in that, The additives include one or more of naphthalene sulfonate formaldehyde condensate, alkyl naphthalene sulfonate formaldehyde condensate, and lignin sulfonate.

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