A dye composition and a dye product

Abstract

The application provides a dye composition and a dye product, and relates to the field of dyes. The raw materials of the dye composition include the following components by weight parts: 6-10 parts of component A, 10-15 parts of component B, 7-9 parts of component C, 6-10 parts of component D, 0.2-0.6 parts of component E and 0.5-2.5 parts of component F. By selecting the components A-F in the dye composition, the characteristic groups of the dye can be improved, the structure of part of the dye components can be adjusted, the temperature-resistant groups of part of the dyes can be improved, the ester group content in the dye can be reduced, the number and energy of each group of the dye are overall arranged, the affinity between the dye and the fiber is enhanced through the synergistic effect, the dye penetration is improved, the possibility of color floating and thermal migration is reduced, the washing fastness, the soaking fastness and the sublimation fastness of the dye are improved, and the high-temperature resistance and the dye penetration of the dye product are enhanced.

Description

Technical Field

[0001] This application relates to the field of dyes, and more particularly to a dye composition and dye article. Background Technology

[0002] With the development of the times and the progress of society, the market demands higher and higher standards for textile fabrics. New functional materials are increasingly being applied to clothing and fabric production, such as functional polyester fabrics, polyester-spandex fabrics, and polyester fiber fabrics. These fabrics place high demands on the wash fastness, setting temperature tolerance, and perspiration fastness of disperse dyes. Currently, some disperse high-fastness dyes on the market suffer from problems such as a narrow pH range, poor sublimation fastness, and severe floating color; others, while having a wide pH range and good sublimation fastness, still have shortcomings such as poor lifting power and higher cost.

[0003] To improve the wash fastness, hand feel, and other fastness indicators of polyester-spandex and pure polyester fabrics, while reducing the processing cost of pure polyester fabrics, there is a need for a high-fastness disperse dye that combines high wash fastness, high-temperature setting resistance, good dyeing performance, low floating color, low cost, and simplifies the reduction washing process. Summary of the Invention

[0004] The purpose of this application is to provide a dye composition and dye article to solve the above-mentioned problems.

[0005] To achieve the above objectives, the first aspect of this application provides a dye composition, wherein the raw materials, by weight, comprise: Component A 6-10 parts, Component B 10-15 parts, Component C 7-9 parts, Component D 6-10 parts, Component E 0.2-0.6 parts, Component F 0.5-2.5 parts; The general structural formula of component A is: X1 includes halogens; The general structural formula of component B is: X2 includes halogens; The component C includes and / or ; The component D includes ; The component E includes ; The component F includes .

[0006] Optionally, X1 and X2 each independently include chlorine or bromine.

[0007] Optionally, X1 and X2 each independently include chlorine.

[0008] A second aspect of this application provides a dye article comprising the aforementioned dye composition.

[0009] Optionally, the composition may also include an auxiliary agent, wherein the mass ratio of the auxiliary agent to the dye composition is 0.3-2:1.

[0010] Optionally, the additive includes at least one of a dispersant, a diffusion agent, and a surfactant.

[0011] Optionally, the dispersant includes at least one of the following: sodium methylnaphthalene sulfonate formaldehyde condensate, sodium methylene bisnaphthalene sulfonate, naphthalene sulfonate formaldehyde condensate, alkylnaphthalene sulfonate formaldehyde condensate, benzylnaphthalene sulfonate formaldehyde condensate, and lignin sulfonate.

[0012] Optionally, the dye product includes liquid dye products and / or solid dye products.

[0013] Optionally, the solid content of the liquid dye product is 20%-60%; And / or, the solid dye product has a solid content of 90%-95%.

[0014] Optionally, the raw materials for the liquid dye product, based on a total mass of 100%, include: 20%-45% of the dye composition, 15%-25% of the liquid dispersant, and the balance being water; And / or, the raw materials for the solid dye product, based on a total mass of 100%, include: 20%-45% of the dye composition, 55%-80% of the solid dispersant, and the balance being water.

[0015] Compared with the prior art, the beneficial effects of this application include: The dye composition provided in this application replaces Red 376 or Red 891# used in the current WECT formulation for the central red component, resulting in better wash fastness, soaking fastness, and setting temperature resistance of the dye composition. The addition of components A, E, and F improves the sublimation fastness of the dye composition. The diazo component of component A is consistent with that of component B, resulting in better synergistic effects in the formulation. By selecting component AF, the characteristic groups of disperse dyes can be improved, the structure of some dye components can be adjusted, the temperature-resistant groups of some dyes can be improved, the ester content in the dye can be reduced, and the quantity and energy of each group in the dye can be coordinated. Through the compound synergistic effect, the affinity between the dye and the fiber is enhanced, the dye penetration is improved, the possibility of floating color and heat migration is reduced, and the wash fastness, soaking fastness, and sublimation fastness of the dye are improved. The high temperature resistance and dye penetration of the dyed products are enhanced, allowing the dyed products to be set at high temperatures and reducing the number of reduction washes, thereby improving efficiency, saving energy and reducing emissions, reducing dyeing costs, and improving economic benefits.

[0016] The dye products provided in this application have good high-temperature setting resistance, good water fastness, and excellent wash fastness. Compared with commercially available products, they can reduce the number of reduction washes, increase the setting temperature, improve printing and dyeing efficiency, and reduce dyeing costs. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation on the scope of this application.

[0018] Figure 1 This is a comparison chart of the wash fastness tests of Example 1 and Disperse Black WECT on all-polyester and polyester-spandex fabrics. Figure 2 This is a comparison chart of the sublimation fastness tests of Example 1 and Disperse Black WECT on all-polyester and polyester-spandex fabrics. Figure 3 This is a comparison chart of the white impact fastness test results of Example 1 and Disperse Black WECT on all-polyester and polyester-spandex fabrics. Figure 4 This is a comparison chart of the water fastness test results of Example 1 and Disperse Black WECT on all-polyester and polyester-spandex fabrics. Figure 5 This is a comparison chart of the rubbing fastness test results of Example 1 and Disperse Black WECT on all-polyester and polyester-spandex fabrics. Figure 6 This is a comparison chart of Example 1 and the WECT Disperse Black test results for perspiration fastness of 100% polyester and polyester-spandex fabrics. Detailed Implementation

[0019] First, the solution provided in this application will be explained in more detail as follows: The first aspect of this application provides a dye composition, wherein the raw materials, by weight, comprise: Component A 6-10 parts, Component B 10-15 parts, Component C 7-9 parts, Component D 6-10 parts, Component E 0.2-0.6 parts, Component F 0.5-2.5 parts; Optionally, the raw materials of the dye composition, by weight, can be: component A, any value between 6, 7, 8, 9, 10 parts or 6-10 parts; component B, any value between 10, 11, 12, 13, 14, 15 parts or 10-15 parts; component C, any value between 7, 8, 9 parts or 7-9 parts; component D, any value between 6, 7, 8, 9, 10 parts or 6-10 parts; component E, any value between 0.2, 0.3, 0.4, 0.5, 0.6 parts or 0.2-0.6 parts; and component F, any value between 0.5, 1, 1.5, 2, 2.5 parts or 0.5-2.5 parts. The general structural formula of component A is: X1 includes halogens; It should be noted that the diazo component in component A has added halogens to the molecular structure compared to the previous traditional formula Red 376, which increases the dye molecular weight and the blue shift of the dye color. The overall hydrophobicity of the dye is stronger, which increases its wash fastness, sublimation fastness and immersion fastness. The general structural formula of component B is: X2 includes halogens; It should be noted that this component is a standard component in mainstream products on the market, with excellent wash and soak fastness, and offers good value for money; The component C includes (C1) and / or (C2); It is important to note that component C1, with two benzyl groups on the nitrogen of the coupled portion, has a larger steric dimensionality of the dye molecule and a larger molecular weight than the traditional formulation of Green Blue, resulting in better sublimation fastness, greater lipophilicity, better hydrophobicity, and higher wash fastness and immersion fastness. Component C2 itself has excellent application fastness, as fully demonstrated in Chinese patent (CN101289414B). Its coupled portion uses a reducing agent and methyl chloroacetate, which are basically the same as the coupled raw materials of components A and B, with similar structures, resulting in a synergistic effect and better affinity in the formulation. Preferably, component C includes (C2); The component D includes ; It should be noted that component D is used in mainstream products on the market and has excellent application fastness and cost performance. The component E includes ; It should be noted that in mainstream market formulations, the E component uses N-methylpyridinone as the coupling group. In this application, N-benzylpyridinone is used instead of N-methylpyridinone, resulting in a larger molecular weight, stronger hydrophobicity, greater steric effect, and better affinity with fibers for component E, thus improving its application fastness. Experiments show better synergy. The component F includes .

[0020] It should be noted that this component is a benzodifuranone series product, which has excellent application fastness and synergistic effect. It is used in very small amounts in this formulation and plays a role in adjusting and correcting the color.

[0021] It should also be noted that in this application, a formulation with 6 components was used. The blue component is based on components B and C, the red component is based on component A, and the yellow component is based on components D and E. The formulations range from dark blue to black. In the design, from a molecular perspective, some components use the same diazo component and some components use the same or similar coupling components to make the formulation have better compatibility and synergistic effect. The formulations were screened through experiments and achieved the experimental objectives.

[0022] In some embodiments, X1 and X2 each independently comprise chlorine or bromine.

[0023] In some embodiments, X1 and X2 each independently include chlorine.

[0024] A second aspect of this application provides a dye article comprising the aforementioned dye composition.

[0025] In some embodiments, the composition further includes an auxiliary agent, wherein the mass ratio of the auxiliary agent to the dye composition is 0.3-2:1.

[0026] Optionally, the mass ratio of the auxiliaries to the dye composition can be any value between 0.3:1, 0.5:1, 1:1, 1.5:1, 2:1, or 0.3:2:1.

[0027] In some embodiments, the adjuvant includes at least one of a dispersant, a diffusion agent, and a surfactant.

[0028] In some embodiments, the indicated additives include one or more of sodium lignosulfonate, naphthalenesulfonate formaldehyde condensate, fatty alcohol polyoxyethylene ether, castor oil polyoxyethylene ether sulfonate, CNF dispersant, and MF dispersant (formaldehyde condensate of sodium methylnaphthalenesulfonate).

[0029] In some embodiments, the dispersant includes at least one of sodium methylnaphthalene sulfonate formaldehyde condensate (MF dispersant), sodium methylene bisnaphthalene sulfonate, naphthalene sulfonate formaldehyde condensate, alkylnaphthalene sulfonate formaldehyde condensate, benzylnaphthalene sulfonate formaldehyde condensate, and lignin sulfonate.

[0030] Preferably, the dispersant comprises sodium lignosulfonate; wherein the lignosulfonate comprises sodium lignosulfonate B or sodium lignosulfonate 85A.

[0031] In some embodiments, the dye product includes liquid dye products and / or solid dye products.

[0032] In some embodiments, the solid content of the liquid dye article is 20%-60%; Optionally, the solid content of the liquid dye product can be any value between 20%, 25%, 30%, 35%, 40%, 45%, 50%, 55%, 60%, or 20-60%. And / or, the solid dye product has a solid content of 90%-95%.

[0033] Optionally, the solid content of the solid dye product can be any value between 90%, 91%, 92%, 93%, 94%, 95%, or 90-95%.

[0034] In some embodiments, the raw materials for the liquid dye product, based on a total mass of 100%, include: 20%-45% of the dye composition, 15%-25% of the liquid dispersant, and the balance being water; Optionally, the raw materials of the liquid dye product, based on a total mass of 100%, may be any value between 20%, 25%, 30%, 35%, 40%, 45% or 20-45%, and the liquid dispersant may be any value between 15%, 20%, 25% or 15-25%. And / or, the raw materials for the solid dye product, based on a total mass of 100%, include: 20%-45% of the dye composition, 55%-80% of the solid dispersant, and the balance being water.

[0035] Optionally, the raw materials of the solid dye product, based on a total mass of 100%, may include any value of 20%, 25%, 30%, 35%, 40%, 45%, or between 20% and 45%, and any value of 55%, 60%, 65%, 70%, 75%, 80%, or between 55% and 80%.

[0036] In some embodiments, the present application provides a method for preparing dye compositions and dye articles, which includes mixing raw materials and grinding them in water, followed by optional drying or standardization. The composition can also be prepared by simply mixing the components, or by mixing the separately processed components in the dye liquor, or preferably by mixing filter cakes of the separate components and then sand milling and drying the mixture.

[0037] The implementation schemes of this application will be described in detail below with reference to specific embodiments. However, those skilled in the art will understand that the following embodiments are only for illustrating this application and should not be regarded as limiting the scope of this application. Unless otherwise specified in the embodiments, conventional conditions or conditions recommended by the manufacturer shall apply. Reagents or instruments used without specified manufacturers are all conventional products that can be purchased commercially.

[0038] Example 1 The first aspect of this embodiment provides a dye composition, wherein the raw materials, by weight, include: The mass of component A is 7.92g, the mass of component B is 12.75g, the mass of component C1 is 8.81g, the mass of component D is 7.68g, the mass of component E is 0.30g, and the mass of component F is 1.77g.

[0039] The general structural formula of component A is: X1 is chlorine, trade name: Jianghong RD, purchased from Wuhai Qingshi Chemical. The general structural formula of component B is: X2 is chlorine, and its trade name is Red Light Blue BR, which was purchased from Wuhai Qingshi Chemical. Component C1 is The product, named Greenlight Blue DBG, was purchased from Zhejiang Wanfeng Chemical Co., Ltd. Component D is The product name is Yellow 114; Component E is The product name is Huang 246:2, purchased from Wuhai Qingshi Chemical. Component F is The product name is Red 356:2, purchased from Wuhai Qingshi Chemical.

[0040] The second aspect of this application provides a dye product, the raw materials of which include the above-mentioned dye composition, plus 10.00g of lignin, 45.00g of MF dispersant (formaldehyde condensate of sodium methylnaphthalene sulfonate) and an appropriate amount of water, with a total mass of 100.00g.

[0041] The preparation method of this dye product is as follows: the raw materials are mixed, dispersed by sand milling, and obtained by spray drying.

[0042] This application also provides Examples 2-4 and Comparative Examples 1-7, which differ from Example 1 in the composition and amount of raw materials. The total amount of dye products in each example and comparative example is 100.00g. The specific components and amounts other than water are shown in Table 1.

[0043] In addition, this application also provides Comparative Examples 8, 9 and 10, wherein the difference between Comparative Example 8 and Example 1 is that the dye product provided in Example 1 is replaced with commercially available black WECT (disperse black WECT, purchased from Zhejiang Longsheng Group Co., Ltd.); the difference between Comparative Example 9 and Example 1 is that component A in the dye product of Example 1 is replaced with red 376 (purchased from Qing Shi Chemical); the difference between Comparative Example 10 and Example 1 is that component A in the dye product of Example 1 is replaced with red 891# (purchased from Qing Shi Chemical).

[0044] Where C2 is The product, named Blue CVG, was purchased from Zhejiang Wanfeng Chemical Co., Ltd.

[0045] Table 1 Raw material composition and dosage

[0046] Note: Composite liquid auxiliary agent, self-made, special auxiliary agent for composite liquid disperse dyes, calculated by mass percentage includes: 42.00 g of polyethylene oxide modified polystyrene, 27.00 g of isopentenyl polyoxyethylene ether, 6.00 g of butyl ether, and the balance is water; among which, polyethylene oxide modified polystyrene (PPVPE0600) was purchased from Xi'an Qiyue Biotechnology Co., Ltd.

[0047] The dye products provided in the above embodiments and comparative examples were subjected to performance tests under the condition of consistent intensity adjustment, as follows: Prepare a 1% (w / w) disperse dye suspension using water. Mix 20 mL of the disperse dye suspension with 80 mL of water. Adjust the pH of the dye bath to 3.5-4.5 with acetic acid. Simultaneously, place the mixture into 2 g of pure polyester or polyester-amine fabric for high-temperature and high-pressure dyeing. Raise the temperature to 130°C within 35 minutes, maintain the temperature for 45 minutes, and then cool to 80°C.

[0048] Samples were taken, and the fabric samples were observed. The sublimation fastness was determined using ISO-105-P01, the washing fastness was determined using AATCC61-2A, the rubbing fastness was determined using ISO-105-X12, the perspiration fastness was determined using GB / T3922-2013, and the colorfastness (whitening fastness) of the seams was determined using GB / T31127-2014.

[0049] Water fastness was tested using the washing method: ECE standard detergent was weighed using a balance and mixed with grade III water (compliant with GB / T6682) to prepare 1L of washing solution, which was then preheated to (40±2)℃. The fabric sample and the preheated washing solution were placed in a washing cup at a liquor ratio of 50:1, and the device was placed in the testing apparatus and run at (100±2)℃ for 5 minutes. After washing, the fabric sample was removed, and the residual liquid was collected for evaluation. The residual liquid fastness grade of the fabric sample was assessed using the staining grey card (compliant with GB / T251).

[0050] The results of the above tests are shown in Table 2.

[0051] Table 2 Test Results

[0052] In this study, a full set of tests at a depth of 6% was conducted on both polyester and polyester-polyamine fabrics using the Disperse Black WECT method. Process 1 involved reduction washing followed by setting at 160°C, while Process 2 involved reduction washing followed by setting at 180°C, reduction washing, and then setting at 160°C. Dyeing results were compared, and tests were performed according to the same standards as in Table 2. The comparison results of the washing fastness, sublimation fastness, white impact fastness, immersion fastness, rubbing fastness, and perspiration fastness of Example 1 and Disperse Black WECT on polyester-polyamine and polyester fabrics are as follows: Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, the advantages are obvious.

[0053] analyze: According to the results in Table 2, the dye products provided in Examples 1-4 of this application are consistent in color tone with commercially available WECT, which can meet market demand. The compound synergistic effect is obvious. Under the condition of one reduction cleaning, except for the consistency of rubbing fastness, the examples have obvious advantages in fastness of each item compared with the comparative example, generally 0.5-1 grade higher.

[0054] Comparative Examples 1-7 adjusted the proportions of each component, removed some components, or adjusted the components to be outside the requirements of this application. Through experiments, it was found that the dye performance did not change much, but the hue was greater than 0.5, resulting in a large difference in color from commercially available WECT and thus it could not effectively and directly replace commercially available WECT.

[0055] Comparative Examples 9-10 showed that component A in the formula was adjusted by using Red 376 or 891 from WECT. The color tone was consistent, but the sublimation fastness, wash fastness, immersion fastness, and setting temperature were all different from those of the product in this application, which proved the advantages of this solution.

[0056] The dye products provided in this application can directly replace commercially available WECT dyes, achieving the same depth and blending effect. The compatibility and dyeing curve are consistent. After dyeing and a single reduction wash, the sublimation fastness, rubbing fastness, perspiration fastness, and washing fastness of the dyes provided in this application are 0.5-1 grades higher than those of commercially available WECT dyes, greatly improving the application performance of dyed fibers and promoting industry progress.

[0057] The dye products provided in this application feature one-time reduction cleaning of fibers and high-temperature (above 160℃) setting, which has significant effects on energy conservation, emission reduction, quality improvement, and efficiency enhancement for dyeing plants.

[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

[0059] Furthermore, those skilled in the art will understand that although some embodiments herein include certain features included in other embodiments but not others, combinations of features from different embodiments are intended to be within the scope of this application and form different embodiments. For example, any of the claimed embodiments can be used in any combination. The information disclosed in this background section is intended only to enhance the understanding of the general background of this application and should not be construed as an admission or in any way implying that such information constitutes prior art known to those skilled in the art.

Claims

1. A dye composition, characterized in that, Its raw materials, by weight, include: Component A 6-10 parts, Component B 10-15 parts, Component C 7-9 parts, Component D 6-10 parts, Component E 0.2-0.6 parts, Component F 0.5-2.5 parts; The general structural formula of component A is: X1 includes halogens; The general structural formula of component B is: X2 includes halogens; The component C includes and / or ； The component D includes ; The component E includes ; The component F includes .

2. The dye composition according to claim 1, characterized in that, X1 and X2 each independently include chlorine or bromine.

3. The dye composition according to claim 2, characterized in that, X1 and X2 each independently include chlorine.

4. A dye product, characterized in that, Includes the dye composition according to any one of claims 1-3.

5. The dye product according to claim 4, characterized in that, It also includes auxiliaries, wherein the mass ratio of the auxiliaries to the dye composition is 0.3-2:

1.

6. The dye product according to claim 5, characterized in that, The additives include at least one of dispersants, diffusion agents, and surfactants.

7. The dye article according to claim 6, characterized in that, The dispersant includes at least one of the following: sodium methylnaphthalene sulfonate formaldehyde condensate, sodium methylene bisnaphthalene sulfonate, naphthalene sulfonate formaldehyde condensate, alkylnaphthalene sulfonate formaldehyde condensate, benzylnaphthalene sulfonate formaldehyde condensate, and lignin sulfonate.

8. The dye article according to claim 6, characterized in that, The dye products include liquid dye products and / or solid dye products.

9. The dye article according to claim 8, characterized in that, The liquid dye product has a solid content of 20%-60%; and / or, the solid dye product has a solid content of 90%-95%.

10. The dye article according to claim 9, characterized in that, The raw materials for the liquid dye product, based on a total mass of 100%, include: 20%-45% of the dye composition, 15%-25% of the liquid dispersant, and the balance being water; And / or, the raw materials for the solid dye product, based on a total mass of 100%, include: 20%-45% of the dye composition, 55%-80% of the solid dispersant, and the balance being water.

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