Disperse red dye composition, dye product and application thereof

Abstract

The invention discloses a disperse red dye composition, a dye product and application thereof. The disperse red dye composition comprises at least two of the compounds shown in the formula (I). The invention provides a disperse red dye product which contains the disperse red dye composition and an auxiliary agent, and the weight ratio of the auxiliary agent to the disperse red dye composition is (0.2-5): 1. The invention further provides application of the disperse red dye product in dyeing or printing of hydrophobic fiber materials, various fastness properties are excellent, and printing and dyeing of fabrics with high fastness requirements can be met. # imgabs0 #

Description

(I) Technical field

[0001] The invention relates to the field of disperse dyes, in particular to a disperse red dye composition and a dye product, and dyeing application of the dye product on hydrophobic fiber materials, especially polyester and blended fabrics thereof. (II) Background technology

[0002] In recent years, polyester-ammonia blended fabrics have been welcomed by the market because of their good elasticity, wrinkle resistance, skin affinity and sweat absorption. At the same time, the cleaning conditions of the blended fabrics are not high, and they can be hand washed, machine washed, and dry cleaned, usually without causing any damage to the fabrics, meeting the needs of sports fabrics and other mid-to-high-end clothing fabrics. At present, the disadvantage of the blended fabrics is that the stability is relatively poor compared to pure polyester fabrics and it is easy to fade. Therefore, higher requirements are put forward for its coloring dyes. Among them, disperse red dyes, as a kind of widely used color, can be used in monochrome and can be used for compounding and enhancing the efficiency of dark dye varieties. The color fastness of the red monochrome and compound dyes currently used for polyester-ammonia blended fabrics on the market needs to be further improved. (III) Summary of the invention

[0003] To solve the above problems, the present invention provides a disperse red dye composition and a dye product and their use in dyeing or printing of hydrophobic fiber materials, especially polyester-spandex blended fabrics, which have excellent color fastness such as resistance to blistering, resistance to sublimation, resistance to friction, resistance to soaping, etc.

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

[0005] A disperse red dye composition comprising at least two of the compounds represented by formula (I):

[0006]

[0007] In the above formula (I):

[0008] R 1 One of the groups selected from the following formulae (1) to (6);

[0009]

[0010] X 1 For chlorine and bromine;

[0011] X 2 For chlorine and bromine;

[0012] X 3 is chlorine, bromine or cyano;

[0013] X 4 is hydrogen, chlorine, bromine, nitro or cyano;

[0014] X 5, X 6 are each independently chlorine or bromine, and X 5 , X 6 In the 5th, 6th or 6th, 7th position;

[0015] m is 1 or 2;

[0016] R 2 , R 3 Each is independently a C1-C4 alkyl group, preferably a methyl group or an ethyl group.

[0017] The disperse red dye composition of the present invention may further comprise component A, wherein component A is selected from at least one of the compounds represented by formula (II), formula (III) and formula (IV):

[0018]

[0019] In the above formula (II) to formula (IV):

[0020] R 4 , R 6 The definition of R is the same as above 1 The definition is the same as;

[0021] R 5 , R 7 , R 8 , R 9 Each is independently a C1-C4 alkyl group, preferably a methyl group or an ethyl group;

[0022] p and q are independently 1 or 2;

[0023] R 10 One of the groups selected from the group represented by formula (2), formula (3), formula (5) or formula (6):

[0024] X 2 ~X 6 The definition of is the same as above;

[0025] R 11 is hydrogen or -NHCOR 14 , R 14 is a C1-C4 alkyl group;

[0026] R 12 , R 13 Each is independently C1-C4 alkyl, or cyano, phenyl or -OCOR 15 Substituted C1-C4 alkyl, R 15 It is a C1~C4 alkyl group.

[0027] In the disperse red dye composition described in the present invention, based on the total mass of the dye, the compound represented by formula (I) accounts for 20 to 99% of the total mass, the mass of component A accounts for 1 to 80% of the total mass, and the sum of the masses of the compounds represented by formula (II) and formula (III) does not exceed 40% of the total mass.

[0028] Preferably, in the disperse red dye composition described in the present invention, based on the total mass of the dye, the compound represented by formula (I) accounts for 40 to 99% of the total mass, the mass of component A accounts for 1 to 60% of the total mass, and the sum of the masses of the compounds represented by formula (II) and formula (III) does not exceed 20% of the total mass.

[0029] Furthermore, the disperse red dye composition of the present invention preferably comprises at least two of the following formulas (I-1) to (I-35):

[0030]

[0031]

[0032]

[0033]

[0034]

[0035] Furthermore, the disperse red dye composition of the present invention preferably further comprises at least one of the compounds represented by the following formulas (II-1) to (II-15), (III-1) to (III-35), and (IV-1) to (IV-6):

[0036]

[0037]

[0038]

[0039]

[0040]

[0041]

[0042]

[0043]

[0044] The disperse red dye composition of the present invention usually needs to add conventional auxiliary agents during its commercialization process. Therefore, the present invention also provides a disperse red dye product, which contains the disperse red dye composition and auxiliary agents, and the weight ratio of the auxiliary agent to the disperse red dye composition is 0.2 to 5:1. Preferably, the disperse red dye product is composed of the disperse red dye composition and auxiliary agents. 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: lignin sulfonate (lignin 85A, lignin 83A, etc.), 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 sulfate, etc.

[0045] The preparation method of the disperse red dye product of the present invention is as follows: after the dye monomer compounds (original dyes) constituting the disperse red dye composition are mixed according to a proportion, they are 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 disperse red dye product of the present invention is liquid after grinding with a sand mill or a grinder, and can be powdery or granular after spray drying. This is a preparation method known to those skilled in the art. Since it is impossible to remove 100% of the water during the spray drying process, a certain amount of water is still allowed to exist in the powdery or granular dye product, preferably not more than 10% of the total weight of the dye product.

[0046] In addition, it should be noted that when the dye product is used for printing and dyeing of textile fibers, the technical characteristics that contribute to the improvement of the dyeing effect lie in the dye components and proportions contained in the product.

[0047] The disperse red dye composition of the present invention can also be further compounded with other dyes to enhance synergy and prepare new dye varieties.

[0048] The invention also provides application of the disperse red dye product in dyeing or printing hydrophobic fiber materials.

[0049] The dye product made by using the dye composition of the present invention can be used to dye hydrophobic fiber materials (such as polyester and its blended fabrics, such as polyester / spandex fabrics) in the usual way in the industry, such as dyeing by ordinary exhaust dyeing method or high temperature and high pressure dyeing method, and can also be used for direct printing. Among them, the ordinary exhaust dyeing method is such as pre-treating the hydrophobic fiber material, putting it into the dyeing tank for exhaust dyeing, washing it with cold water to neutrality after dyeing, wringing it, and then performing reduction washing and drying; direct printing is such as pre-treating the fabric, drying, shaping, printing disperse dye paste on the printing machine, and then steaming, using steaming to fix the dye on the fabric, and finally washing it with water and stretching it for shaping.

[0050] The disperse red dye composition and dye product provided by the invention are excellent in various color fastnesses such as resistance to blistering, resistance to sublimation, resistance to friction, resistance to soaping, etc. when used for dyeing or printing hydrophobic fiber materials. (IV) Specific implementation methods

[0051] The present invention is further described below in conjunction with specific embodiments, but the protection scope of the present invention is not limited thereto:

[0052] Embodiment 1:

[0053] 2 grams of the compound represented by formula (I-1), 98 grams of the compound represented by formula (I-4), and 250 grams of dispersant MF are mixed with 650 grams of water, and then ground, dispersed and dried to obtain a finished product, which can dye polyester and its blended fabrics into ruby ​​color.

[0054]

[0055] Embodiments 2 to 105

[0056] The method described in Example 1 is followed, except that the compounds and masses shown in Table 1 are used, 200 grams of additives are added (150 grams of dispersant MF and 50 grams of sodium lignin sulfonate), 800 grams of water are added and mixed to form a slurry, which is then ground, dispersed, and dried to obtain a finished product. The dye can provide polyester and its blended fabrics with a red color having excellent fastness properties.

[0057] Table 1

[0058]

[0059]

[0060]

[0061]

[0062]

[0063] Dyeing Example:

[0064] 2 g of the disperse red dye obtained in Examples 1 to 105 were weighed respectively, and a polyester-spandex knitted fabric was treated by a conventional high-temperature and high-pressure dyeing method and heat setting. During the treatment process, the dyeing depth (owf) was controlled to be 2.0%, the bath ratio was 1:40, the pH value of the dye bath was adjusted to 4-5, the dyeing was started at room temperature, the temperature was raised to 130°C at 1°C / min, and the dyeing was carried out by keeping the temperature for 30min. The fabric was washed, reduced and cleaned (2 g / L caustic soda, 3 g / L hydrosulfite, 85°C x 20min), neutralized by acid washing (2 g / L acetic acid, 40°C x 15min), washed and dried, and heat-set at 180°C for 30 seconds according to the conventional method to obtain a red dyed fabric. The rubbing fastness (refer to ISO105-X12), blister fastness [2g of red dyed fabric was soaked in 95℃ (5g / L washing powder) for 15min, bath ratio 1:50, and its blister fastness was evaluated], sublimation fastness (refer to ISO 105-P01), and washing fastness (refer to ISO 105-C10). The results are shown in Table 2. Table 2

[0065]

[0066]

[0067]

[0068]

[0069] It can be seen from the above table that the disperse red dye composition and dye products thereof in the present invention have excellent fastness properties and can meet the printing and dyeing of fabrics with high fastness requirements.

Claims

1. A disperse red dye composition, characterized in that: The disperse red dye composition comprises at least two of the compounds represented by formula (I): In the above formula (I): R 1 One of the groups selected from the following formulae (1) to (6); in, X 1 For chlorine and bromine; X 2 For chlorine and bromine; X 3 is chlorine, bromine or cyano; X 4 is hydrogen, chlorine, bromine, nitro or cyano; X 5 , X 6 are each independently chlorine or bromine, and X 5 , X 6 In the 5th, 6th or 6th, 7th position; m is 1 or 2; R 2 , R 3 Each is independently a C1-C4 alkyl group, preferably a methyl group or an ethyl group.

2. The disperse red dye composition according to claim 1, wherein: The disperse red dye composition further comprises component A, wherein component A is selected from at least one of the compounds represented by formula (II), formula (III) and formula (IV): In the above formula (II) to formula (IV): R 4 , R 6 The definition of R is the same as above 1 The definition is the same as; R 5 , R 7 , R 8 , R 9 Each is independently a C1-C4 alkyl group, preferably a methyl group or an ethyl group; p and q are independently 1 or 2; R 10 is selected from one of the groups represented by formula (2), formula (3), formula (5) or formula (6), wherein X 2 ~X 6 has the same meaning as in claim 1; R 11 is hydrogen or -NHCOR 14 , R 14 is a C1-C4 alkyl group; R 12 , R 13 Each is independently C1-C4 alkyl, or cyano, phenyl or -OCOR 15 Substituted C1-C4 alkyl, R 15 It is a C1~C4 alkyl group.

3. The disperse red dye composition as claimed in claim 1, wherein: In the disperse red dye composition, based on the total mass of the dye, the compound represented by formula (I) accounts for 20-99% of the total mass, the mass of component A accounts for 1-80% of the total mass, and the sum of the masses of the compounds represented by formula (II) and formula (III) does not exceed 40% of the total mass.

4. The disperse red dye composition as claimed in claim 3, characterized in that: In the disperse red dye composition, based on the total mass of the dye, the compound represented by formula (I) accounts for 40-99% of the total mass, the mass of component A accounts for 1-60% of the total mass, and the sum of the masses of the compounds represented by formula (II) and formula (III) does not exceed 20% of the total mass.

5. The disperse red dye composition as claimed in claim 1, characterized in that: The disperse red dye composition comprises at least two of the following formulas (I-1) to (I-35):

6. The disperse red dye composition according to claim 1, wherein: The disperse red dye composition further comprises at least one of the compounds represented by the following formulas (II-1) to (II-15), (III-1) to (III-35), and (IV-1) to (IV-6):

7. A disperse red dye product, comprising the disperse red dye composition according to any one of claims 1 to 6 and an auxiliary agent, wherein the weight ratio of the auxiliary agent to the disperse red dye composition is 0.2 to 5:

1.

8. The disperse red dye product according to claim 7, characterized in that: The auxiliary agent is selected from the following one or a mixture of two or more thereof: lignin sulfonate, alkylnaphthalenesulfonic acid formaldehyde condensate, naphthalenesulfonic acid formaldehyde condensate, benzylnaphthalenesulfonic acid formaldehyde condensate, and sodium sulfate.

9. Use of the disperse red dye product as claimed in claim 7 or 8 in dyeing or printing of hydrophobic fiber materials.

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