CN103589190B - A kind of dispersion red dye composition - Google Patents

Abstract

The invention provides a disperse red dye composition, which mainly includes 50-95 parts by mass of at least one component A selected from formula (I), and 5-50 parts by mass of at least one component A selected from Component B of formula (II); the disperse red dye composition of the present invention, when applied to dyeing hydrophobic fiber materials such as polyester fibers and polyester/spandex fabrics, has washing fastness, sublimation fastness and rubbing fastness Excellent, insensitive to pH value of dyeing (pH value dependent range is 3.0-7.0), good liftability, high color yield, low dye cost, filling the defect of poor liftability of common high fastness disperse dyes.

Description

A kind of disperse red dye composition

(1) Technical field

The invention relates to a disperse red dye composition, in particular to a red disperse dye composition with high fastness suitable for printing and dyeing hydrophobic fiber materials.

(2) Background technology

After crossing the era of enough food and clothing, people pay more and more attention to the improvement of the quality of life. If the fabric fastness is not good, there will be problems such as staining and color matching, which will seriously affect the quality of life. In order to meet the needs of the market, various high-fastness disperse dyes have appeared on the market, but there is a common problem of single fastness performance, that is, it is difficult to achieve washing fastness, light fastness, sublimation fastness, rubbing fastness, etc. Excellent fastness and other fastness. In addition, ordinary high-fastness disperse dyes often have problems such as poor promotion, low color yield, and high dye cost, and the dyeing pH value of most high-fastness disperse dyes is between 4 and 5, with a narrow range. Many dyeing factories It is difficult to control well in practical applications, for example, a disperse scarlet dye composition with high washing fastness disclosed in Chinese invention patent CN101983993A. At present, looking for a disperse dye with excellent performance is a work with epochal significance.

(3) Contents of the invention

The purpose of the present invention is to provide a disperse red dye composition with excellent fastness to washing, sublimation, rubbing, etc., to solve the problem of high fastness disperse red dyes on the market with narrow pH value dependence and poor lifting performance. , Low color yield, high cost of dyestuffs and other issues.

The technical scheme adopted in the present invention is:

A disperse red dye composition, mainly comprising 50 to 95 parts by mass of at least one component A selected from formula (I), and 5 to 50 parts by mass of at least one component B selected from formula (II) ;

In formula (II):

R ₁ is -H or -NO ₂ ;

R ₂ is C ₁ -C ₄ alkoxy, halogen, or -OSO ₂ -ph, wherein ph represents phenyl;

R ₃ is a C ₁ -C ₄ alkyl group.

Preferably, in formula (II): R ₂ is -OCH ₃ , -Cl or -OSO ₂ -ph, and R ₃ is methyl or ethyl.

Preferably, the composition is composed of component A and component B, based on the component A and component B, the mass percentage of component A is 55-90%, and the mass percentage of component B is 10-45%.

Alternatively, the composition is composed of component A, component B and additives, based on the component A and component B, the mass percentage of component A is 55-90%, and the mass percentage of component B is The component content is 10-45%, and the mass of the auxiliary agent is 0.8-5 times of the sum of the mass of component A and component B; the auxiliary agent is one of the following or a mixture of two or more of them: naphthalenesulfonic acid formaldehyde condensate , lignosulfonate, alkylnaphthalenesulfonate formaldehyde condensate; specifically including methylnaphthalenesulfonate formaldehyde condensate (dispersant MF), naphthalenesulfonate formaldehyde condensate (diffusion agent NNO), benzylnaphthalenesulfonate formaldehyde Condensate (diffusion agent CNF), sodium lignosulfonate (lignin 85A, lignin 83A), etc.

The component A is preferably one of the following or a mixture thereof:

The component B is preferably one of the following or a mixture of two or more thereof:

Due to the particularity of the dye industry, it is difficult and unnecessary to make a pure product, which usually contains some impurities in the preparation process. When the composite disperse red dye of the present invention is made into a finished product, it is also allowed to contain a small amount of water and a small amount of physical impurities .

In the disperse red dye composition of the present invention, based on the dye part, the mass percentage of component A is preferably 55 to 90%, and the mass percentage of component B is preferably 10 to 45%. The disperse red dye composition can be As a whole, compound with other azo or heterocyclic red, blue, yellow, purple or orange dyes to obtain new products, such as C.I. Disperse Yellow 66, C.I. Disperse Yellow 67, C.I. Disperse Yellow 76, C.I. Disperse Yellow 79. C.I. Disperse Yellow 85, C.I. Disperse Orange 30, C.I. Disperse Orange 73, C.I. Disperse Orange 80, C.I. Disperse Orange 288, C.I. Disperse Red 160, C.I. Disperse Red 184, C.I. Disperse Red 279, C.I. Disperse Red 356, C.I. Disperse Purple 33. C.I. Disperse Violet 77, C.I. Disperse Violet 93, C.I. Disperse Blue 56, C.I. Disperse Blue 60, C.I. Disperse Blue 201, C.I. Disperse Blue 257, C.I. Disperse Blue 301, etc.

The disperse red dye composition of the present invention, based on the dye (component A+component B), also allows the addition of a toning component with a mass percentage of no more than 5%, preferably no more than 3%. The role of the component is to adjust the shade of the dye, and it has no substantial effect on the dyeing performance of the dye composition. Adding a small amount such as C.I. Disperse Yellow 54, C.I. Disperse Yellow 64, C.I. Disperse Yellow 119, C.I. Orange 25, C.I. Disperse Orange 33, C.I. Disperse Orange 61, C.I. Disperse Red 73, C.I. Disperse Red 80, C.I. Disperse Red 145, C.I. Disperse Red 158, etc.

In the above scheme, C.I. refers to the dye index number (COLORINDEX), which is a compilation of international dyes and pigments jointly compiled and published by the British Society of Dyeers (SDC) and the American Association of Textile Chemists and Dyeers (AATCC). The "dye part" refers to the dye filter cake (original dye), which does not include any finishing auxiliaries, but it is allowed to contain a small amount of impurities brought in during synthesis, which do not affect the performance of the dye. The dye The mass percentage or mass parts are calculated based on the dry weight of the dye filter cake.

As we all know, in the process of processing the synthesized disperse dyes into commercial disperse dyes, a large number of auxiliary agents need to be added, including commonly used dispersants, diffusing agents and surfactants, etc. The preferred auxiliary agents include one of the following or a mixture thereof: Naphthalenesulfonate formaldehyde condensate, lignosulfonate, alkylnaphthalenesulfonate formaldehyde condensate; such as methylnaphthalenesulfonate formaldehyde condensate (dispersant MF), naphthalenesulfonate formaldehyde condensate (diffusion agent NNO), benzyl Naphthalenesulfonic acid formaldehyde condensate (diffusion agent CNF), sodium lignosulfonate (lignin 85A, lignin 83A), etc.

The disperse red dye composition of the present invention can be prepared by the following methods:

After mixing the raw dyes represented by component A and component B according to the above ratio, micronization is carried out with pulverizers such as sand mills or grinders in the presence of auxiliary agents, water or other wetting agents; The original dyes represented by component A and component B can be micronized with a pulverizer such as a sand mill or a grinder in the presence of auxiliary agents, water or other wetting agents, and then mixed in the above ratio.

The disperse red dye composition of the present invention can be liquid after grinding with a sand mill or a grinder, and can be powder or granular after spray drying.

The components A and B are common disperse dyes, which can be prepared by commercially available products, or according to the methods described in patents DE2256179, GB1324235, US3957749A, JP61019664, JP11158402 or similar methods.

When the disperse red dye composition of the present invention is applied to dyeing of hydrophobic fiber materials such as polyester fibers and polyester/spandex fabrics, it has excellent washing fastness, sublimation fastness and rubbing fastness, and the dyeing pH value is not sensitive (pH The value dependence range is 3.0~7.0), with good liftability, high color yield and low dye cost, which fills the defect of poor liftability of general high fastness disperse dyes.

(4) Description of drawings

Figure 1 is a comparison chart of the dye lifting power of Example 13 of the present invention and Comparative Example 1.

(5) Specific implementation methods

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

Example 1:

According to the data shown in Table 1, component A, component B, additives (methylnaphthalenesulfonic acid formaldehyde condensate (dispersant MF), naphthalenesulfonic acid formaldehyde condensate (diffusion agent NNO), benzylnaphthalenesulfonic acid Formaldehyde condensate (diffusion agent CNF), sodium lignosulfonate (lignin 85A, lignin 83A)) is mixed with water, ground and dispersed with a grinder, and dried to obtain the disperse red dye of the present invention.

Table 1

Dyeing Example 1:

Take 2 grams of the disperse dye compositions prepared in Examples 1-33 respectively, add 500ml of water to prepare a dye solution, absorb 20ml of the dye solution and mix with 80ml of water, adjust the pH of the dye bath to 4.5 with acetic acid, then heat up to 60°C, and at the same time Put 2g of polyester/spandex cloth for high-temperature and high-pressure dyeing, heat up to 130°C within 35 minutes, keep warm for 30 minutes, and cool to 80°C for sampling. ISO105-X12, ISO105-C03, and ISO105-X11 were used to measure the color fastness to rubbing, color fastness to washing and color fastness to sublimation, and the results are as follows:

Rubbing fastness: dry rubbing, grade 5; wet rubbing, grade 5.

Washing fastness: fade fastness, grade 5;

Staining fastness: CA, grade 5; CO, grade 5;

PES, grade ≥4-5; PAN, grade 5; WO, grade 5.

Fastness to sublimation (180℃×30S): fading, grade 5;

Cotton stain, grade 5; polyester stain ≥4-5 grade.

Dyeing Example 2:

Add 1 gram of the disperse dye composition prepared in representative Example 13, add 500ml of water to prepare a dye solution, absorb 15ml of the dye solution and mix it with 85ml of water, adjust the dyeing pH to 3-7, then heat up to 60°C, and put Add 2g of polyester cloth for high-temperature and high-pressure dyeing, heat up to 130°C within 35 minutes, keep warm for 30 minutes, and cool to 80°C for sampling. According to GB/T2394, the color and strength of the sample cloth are evaluated, and the pH4.5 dyed sample cloth is used as the standard sample. The test results are shown in Table 2 below:

pH 3.0 3.5 4.0 4.5 5.0 6.0 7.0 strength 99.5 98.2 97.9 100 97.8 99.7 99.7 Shade 0.52 0.20 0.21 0.0 0.19 0.21 0.32

It can be seen from the above table that the disperse red dye composition of the present invention has good pH adaptability on the basis of excellent color fastness performance.

Comparative Example 1:

Take Example 1 in comparative document CN101983993A as Comparative Example 1.

According to the method described in Dyeing Application 2, the dyes prepared in Example 13 of the present invention and Comparative Example 1 are used to dye polyester cloth in the range of dyeing concentration 0.5% to 8.0% and under the condition of PH4.5, according to GB/T2397 The method described in tests its lifting force, and the obtained lifting force result is shown in Figure 1. It can be seen intuitively from Fig. 1 that the improvement of the disperse dye of the present application is obviously better than that of the comparative document.

As can be seen from the above, the disperse red dye composition of the present invention not only has excellent fastness properties such as washing fastness, sublimation fastness, and rubbing fastness, but also has better improvement than ordinary high-fastness disperse red dyes on the market. , high color yield, saving dye cost. In addition, the pH value dependence range of the disperse red dye of the present application is 3.0-7.0, compared with the pH value dependence range of 4.0-5.0 for common high-fastness disperse dyes, which greatly increases the actual controllability of the dyeing factory.

Claims (6)

1. A disperse red dye composition, mainly comprising 50 to 95 parts by mass of at least one component A selected from formula (I), and 5 to 50 parts by mass of at least one group selected from formula (II) Point B; In formula (Ⅱ): R ₁ is -H or -NO ₂ ; R ₂ is C ₁ -C ₄ alkoxy, halogen, or -OSO ₂ -ph, wherein ph represents phenyl; R ₃ is a C ₁ -C ₄ alkyl group. 2. The disperse red dye composition according to claim 1, characterized in that, in formula (II): R ₂ is -OCH ₃ , -Cl or -OSO ₂ -ph, and R ₃ is methyl or ethyl. 3. disperse red dye composition as claimed in claim 1, is characterized in that described composition is made up of component A and component B, based on described component A and component B, component A mass percentage The content is 55-90%, and the mass percentage of component B is 10-45%. 4. the disperse red dye composition as claimed in claim 1, is characterized in that said composition is made up of component A, component B and auxiliary agent, based on described component A and component B, component A The mass percentage is 55-90%, the mass percentage of component B is 10-45%, and the mass of the additive is 0.8-5 times the sum of the mass of component A and component B; the additive is the following One or a mixture of two or more of them: naphthalenesulfonate formaldehyde condensate, ligninsulfonate, alkylnaphthalenesulfonate formaldehyde condensate. 5. The disperse red dye composition according to any one of claims 1 to 4, characterized in that said component A is one of the following or a mixture thereof: 6. The disperse red dye composition according to any one of claims 1 to 4, characterized in that said component B is one of the following or a mixture of two or more thereof: