Disperse navy blue-to-black dye composition and dye product

Abstract

The disperse navy blue-to-black dye composition comprises a component A, a component B and a component C, the component A is at least one of compounds shown in a formula (I), the component B is at least one of compounds shown in a formula (II), and the component C is at least one of compounds shown in a formula (III); the polyester fiber has excellent washing resistance and color fastness to light, and is suitable for printing and dyeing of polyester for automotive interiors and blended fabrics thereof. # imgabs0 #

Description

(I) Technical field

[0001] The invention relates to a dispersed navy blue to black dye composition and a dye product, and in particular to a dispersed navy blue to black dye composition and a dye product with high light fastness suitable for printing and dyeing hydrophobic fiber materials. (II) Background technology

[0002] Navy and black dyes are the most widely used colors among disperse dyes. In recent years, polyester fiber materials have been increasingly used as automotive interior materials due to their excellent heat resistance and light resistance, which has put forward more demands for the richness of colors. However, the use environment of automotive interior fabrics is relatively special. Such fabrics need to withstand long-term high-temperature exposure and are prone to color change and fading. Therefore, their color fastness requirements are more stringent than those in the traditional clothing field. Although the existing dispersed navy to black dyes on the market have improved the color fastness to light at high temperatures, they still need to improve the light fastness under long-term exposure at high temperatures. Although some conventional dispersed navy to black dyes can achieve a light fastness of about 6 to 7 levels for clothing textiles, according to the strict testing standards for automotive interior materials, they can only reach a color change and fading level of 3 to 4. (III) Summary of the invention

[0003] The purpose of the present invention is to provide a dispersed dark blue to black dye composition, which has excellent water fastness and light fastness when used for dyeing hydrophobic fiber materials, is suitable for printing and dyeing polyester and its blended fabrics for automobile interiors, and can meet the growing domestic demand for dyeing automobile interior materials.

[0004] The technical solution adopted by the present invention is:

[0005] A dispersed navy blue to black dye composition comprises component A, component B and component C, wherein component A is at least one of the compounds shown in formula (I), component B is at least one of the compounds shown in formula (II), component C is at least one of the compounds shown in formula (III), and based on the components A, B and C, the mass percentage of component A is 30-85%, the mass percentage of component B is 5-50%, and the mass percentage of component C is 5-55%.

[0006]

[0007]

[0008] In formula (I):

[0009] R 1C1-C4 alkyl, acetoxyethyl, methoxycarbonylethyl, allyl, C1-C4 alkyl substituted with C1-C4 alkoxy, cyanoethyl, -C2H4OCO-Ph, -C2H4O-Ph, benzyl or phenethyl, wherein Ph is phenyl;

[0010] In formula (II):

[0011] R 2 is C1-C4 alkyl, phenyl, benzyl, C1-C4 alkyl or nitro-substituted benzyl, methoxyethyl, ethoxyethyl, methoxycarbonylethyl; R 3 , R 4 are each independently a C1-C4 alkyl group, R 5 C1-C4 alkyl or cyanoethyl;

[0012] In formula (III):

[0013] R 6 is a C1-C4 alkyl group or a C1-C4 alkyl group substituted with a C1-C4 alkoxy group, R 7 is hydrogen or nitro, R 8 It is nitro, halogen, C1~C4 alkoxy, -COOC2H4O-Ph, -OCOOCH2-Ph, -OSO2-Ph or -SO2N(CH3)2, wherein Ph is phenyl.

[0014] In the present invention, the C1-C4 alkyl group may be a methyl group, an ethyl group, a straight-chain or branched propyl group, or a straight-chain or branched butyl group. The C1-C4 alkoxy group may be a methoxy group, an ethoxy group, a straight-chain or branched propoxy group, or a straight-chain or branched butoxy group.

[0015] Preferably, the component A is one of the following formulae or a mixture of two or more thereof in any proportion:

[0016]

[0017]

[0018]

[0019] Preferably, the component B is one of the following formulae or a mixture thereof in any proportion:

[0020]

[0021]

[0022]

[0023] Preferably, the component C is one of the following formulae or a mixture of two or more thereof in any proportion:

[0024]

[0025]

[0026] Furthermore, based on the component A, component B and component C, the mass percentage of component A is 30-80%, the mass percentage of component B is 10-50%, and the mass percentage of component C is 10-55%.

[0027] As a further preference, the dispersed navy blue to black dye composition comprises component A, component B and component C, wherein:

[0028] Component A is at least one selected from formula (I-1) to (I-6);

[0029] Component B is at least one selected from formula (II-1) to (II-4);

[0030] Component C is at least one selected from formulae (III-5) to (III-8).

[0031] The mass percentage of component A is 30-80%, the mass percentage of component B is 10-50%, and the mass percentage of component C is 10-55%.

[0032] As particularly preferred, the dispersed navy blue to black dye composition consists of component A, component B and component C. Based on the components A, B and C, the mass percentage of component A is 30-80%, the mass percentage of component B is 10-50%, and the mass percentage of component C is 10-55%.

[0033] It should be noted that due to the particularity of the dye industry, it is difficult and unnecessary to make the components A, B and C into pure products. Usually, a small amount of by-products will be produced during their synthesis, which do not need to be separated separately and can be used together for dye compounding. The amount is preferably controlled within 15% (based on the weight of the dye components, excluding auxiliaries).

[0034] The dispersed navy blue to black dye composition of the present invention is also allowed to add a coloring component with a mass percentage content not exceeding 10%, such as adding a small amount of CI Disperse Yellow 54, CI Disperse Yellow 119, CI Disperse Yellow 163, etc. The CI refers to the dye index number (COLOR INDEX), which is an international dye and pigment variety compilation jointly compiled and published by the British Society of Dyers (SDC) and the American Association of Textile Chemists and Colorists (AATCC). The mass percentage of the dye is calculated based on the dry weight of the dye filter cake.

[0035] The dispersed navy blue to black dye composition of the present invention is usually required to add an auxiliary agent for post-treatment when it is sold as a commodity or used for coloring textile materials. Therefore, the present invention also provides a dispersed navy blue to black dye product, which is composed of the dispersed navy blue to black dye composition and an auxiliary agent, and the weight ratio of the auxiliary agent to the dispersed navy blue to black dye composition is 0.2 to 5:1. The auxiliary agent is a dispersant, a diffusant and other surfactants commonly used in the compounding of disperse dyes, preferably one of the following or a mixture of two or more thereof: naphthalenesulfonic acid formaldehyde condensate, lignin sulfonate, alkylnaphthalenesulfonic acid formaldehyde condensate (such as methylnaphthalenesulfonic acid formaldehyde condensate (dispersant MF)), naphthalenesulfonic acid formaldehyde condensate (diffuser NNO), benzylnaphthalenesulfonic acid formaldehyde condensate (diffuser CNF), sodium lignin sulfonate (lignin 85A, lignin 83A), sodium sulfate, etc.

[0036] The preparation method of the dispersed navy blue to black dye of the present invention is as follows: the aforementioned dye monomer compounds (original dyes) are mixed according to a proportion, and then micronized by a pulverizer such as a sand mill or a grinder in the presence of an auxiliary agent and water; in addition, the dye monomer compounds can be micronized by a pulverizer such as a sand mill or a grinder in the presence of an auxiliary agent and water, and then mixed according to a proportion. The dispersed navy blue to black dye of the present invention is liquid after grinding with a sand mill or a grinder, and can be powdery or granular after spray drying, which is a preparation method well known to those skilled in the art.

[0037] The dye compounds of formula (I) to (III) used in the present invention can be conveniently synthesized in a manner well known to those skilled in the art, or commercially available products can be used. The dye prepared using the dye composition of the present invention can be used to dye hydrophobic fiber materials (such as polyester and its blended fabrics) in a conventional manner in the industry, such as dyeing using ordinary exhaust dyeing or high temperature and high pressure dyeing, and can also be used for cheese dyeing and direct printing. Among them, the common dip dyeing method is such as pre-treating the hydrophobic fiber material, putting it into the dyeing tank for dip dyeing, washing it with cold water until it is neutral, wringing it, and then reducing and washing it, and drying it; the cheese dyeing is such as loosening the original yarn, chamfering it, putting it into the cage, entering the dyeing tank, pre-treatment, washing, adding yarn dyeing (1℃ / 1min), heating to 70℃ and dyeing it evenly for 10min-(1℃ / 1min), heating to 100℃ and dyeing it evenly for 10min-(1℃ / min), heating to 130℃ and keeping it warm for 45-60min-high temperature drainage-washing water-reducing washing-dehydration-drying; direct printing is such as pre-dyeing the fabric, drying, shaping it, printing disperse dye paste on the printing machine, and then steaming it, using steaming to fix the dye on the fabric, and finally washing it with water and stretching it for shaping.

[0038] The dispersed dark blue to black dye product provided by the present invention is applied to dyeing polyester and its blended fabrics, has the characteristics of excellent water fastness, light fastness and the like, and is also particularly suitable for dyeing automotive interior fabrics. (IV) Specific implementation methods

[0039] The present invention is further described below in conjunction with specific embodiments, but the protection scope of the present invention is not limited thereto:

[0040] Embodiment 1:

[0041] 35 g of the dye represented by formula (I-1), 25 g of the dye represented by formula (II-1), 40 g of the dye represented by formula (III-5), and 262 g of dispersant MF are mixed with 2350 g of water, and then ground, dispersed and dried to obtain a finished product, which can provide a black hue to polyester and its blended fabrics.

[0042]

[0043] Embodiment 2:

[0044] 40 grams of the dye represented by formula (I-1), 20 grams of the dye represented by formula (I-2), 20 grams of the dye represented by formula (II-3), 20 grams of the dye represented by formula (III-6), and 256 grams of the diffusant CNF are mixed with 2050 grams of water, and then ground, dispersed and dried to obtain a finished product, which can provide a navy blue hue to polyester and its blended fabrics.

[0045]

[0046]

[0047] Embodiments 3 to 30

[0048] The method described in Example 1-2 is followed, except that the dyes and weights shown in Component A, Component B and Component C in Table 1 are used, 220 grams of auxiliary agents (100 grams of dispersant MF and 120 grams of sodium lignin sulfonate) are added, 2200 grams of water are added and mixed to form a slurry, which is ground, dispersed and dried to obtain a finished product. The dye can provide polyester and its blended fabrics with navy blue to black tones with excellent fastness properties.

[0049] Table 1

[0050]

[0051]

[0052] Embodiment 31:

[0053] 41 g of the dye represented by the aforementioned formula (I-1), 20 g of the dye represented by the formula (II-1), 39 g of the dye represented by the formula (III-7), 5 g of CI Disperse Yellow 163, and 240 g of the dispersant MF are mixed with 2000 g of water, and then ground, dispersed and dried to obtain a finished product, which can provide a black hue to polyester and its blended fabrics.

[0054] Dyeing Example:

[0055] Weigh 2 grams of dispersed dark blue to black dye products prepared in Examples 1 to 31, and treat polyester fabrics by conventional high temperature and high pressure dyeing. During the treatment, the dyeing depth (owf) is controlled to be 4.0%, the bath ratio is 1:25, the pH value of the dye bath is 4-5, the dyeing is carried out at room temperature, the temperature is raised to 130°C at 1°C / min, the temperature is kept for 60 minutes, and the fabric is washed, washed and dried according to the usual method, cooled to 70°C and taken out. Observe the color light of the sample fabric, and test its sublimation resistance and water washing color fastness respectively by using standards ISO 105-P01 and AATCC 61-2A. The results are listed in Table 2 below.

[0056] Light fastness test:

[0057] Refer to the light fastness test method in GB / T-16422.2-2022, use a high-energy xenon lamp with an irradiation density of 162W / m 2 The blackboard temperature was 89°C ± 3°C, and the irradiation was performed for 38 cycles. Each cycle included 3.8 hours of irradiation time and 1 hour of non-irradiation time. The discoloration and fading of the irradiated part were determined by referring to the grayscale of discoloration and fading of JISL-0804. The results are listed in Table 2 below.

[0058] Table 2

[0059]

[0060]

[0061] It can be seen from the above table that the dispersed navy blue to black dye composition prepared by the present invention is used for printing and dyeing of polyester fabrics, and has excellent sublimation resistance and water washing fastness. According to the strict sunlight fastness test, its fastness can reach 4 to 5 levels, or even 5 ultra-high fastness, which can fully meet the printing and dyeing needs of automotive interior fabrics.

Claims

1. A dispersed navy blue to black dye composition, comprising component A, component B and component C, wherein component A is at least one of the compounds represented by formula (I), component B is at least one of the compounds represented by formula (II), and component C is at least one of the compounds represented by formula (III). Based on the components A, B and C, the mass percentage of component A is 30-85%, the mass percentage of component B is 5-50%, and the mass percentage of component C is 5-55%: In formula (I): R 1 is C1-C4 alkyl, acetoxyethyl, methoxycarbonylethyl, allyl, C1-C4 alkyl substituted with C1-C4 alkoxy, cyanoethyl, -C2H4OCO-Ph, -C2H4O-Ph, benzyl or phenethyl, wherein, Ph is phenyl; In formula (II): R 2 is C1-C4 alkyl, phenyl, benzyl, C1-C4 alkyl or nitro-substituted benzyl, methoxyethyl, ethoxyethyl, methoxycarbonylethyl; R 3 , R 4 are each independently a C1-C4 alkyl group, R 5 C1-C4 alkyl or cyanoethyl; In formula (III): R 6 is a C1-C4 alkyl group or a C1-C4 alkyl group substituted with a C1-C4 alkoxy group, R 7 is hydrogen or nitro, R 8 It is nitro, halogen, C1~C4 alkoxy, -COOC2H4O-Ph, -OCOOCH2-Ph, -OSO2-Ph or -SO2N(CH3)2, wherein Ph is phenyl.

2. The dispersed navy blue to black dye composition according to claim 1, characterized in that The R 1 It is C1~C4 alkyl, acetoxyethyl, methoxycarbonylethyl, allyl, C1~C4 alkyl substituted by C1~C4 alkoxy or cyanoethyl.

3. The dispersed navy blue to black dye composition according to claim 1, characterized in that The component A is selected from one of the following formulae or a mixture of two or more thereof in any proportion:

4. The dispersed navy blue to black dye composition according to claim 1, characterized in that The component B is selected from one of the following formulae or a mixture of two or more thereof in any proportion:

5. The dispersed navy blue to black dye composition according to claim 1, characterized in that The component C is selected from one of the following formulae or a mixture of two or more thereof in any proportion:

6. The dispersed navy blue to black dye composition according to claim 1, characterized in that It consists of component A, component B and component C.

7. The dispersed navy blue to black dye composition as claimed in claim 3, characterized in that Component A is selected from at least one of formulae (I-1) to (I-6).

8. The dispersed navy blue to black dye composition as claimed in claim 4, characterized in that Component B is selected from at least one of formulas (II-1) to (II-4).

9. The disperse blue dye composition according to claim 5, wherein Component C is selected from at least one of formulas (III-5) to (III-8).

10. A disperse blue dye product, comprising an auxiliary agent and the disperse blue dye composition according to claim 1, wherein the weight ratio of the auxiliary agent and the disperse blue dye composition is 0.2 to 5:1, wherein the auxiliary agent is a dispersant, diffusing agent or other surfactant commonly used in compounding disperse dyes.

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