Black acid dye composition, black acid dye, preparation method and use thereof

Abstract

The present invention provides a black acid dye composition, a black acid dye, a preparation method, and uses thereof. The black acid dye composition comprises the following components: component A represented by formula (I): imgabs0; component B represented by formula (II): imgabs1; and component C represented by formula (III): imgabs2. The black acid dye composition and the black acid dye of the present invention have good water solubility and excellent fastness to washing, hot pressing, rubbing, and perspiration, particularly excellent fastness to washing. Furthermore, the black acid dye composition of the present invention has excellent compatibility.

Description

Technical Field

[0001] The invention relates to a black acid dye composition, a black acid dye, a preparation method and application thereof, and belongs to the field of dyes. Background Art

[0002] As the printing and dyeing industry places increasingly higher demands on the dyeing performance and environmental performance of black dyes, the existing black dyes on the market have a limited color spectrum, are expensive, and their performance cannot meet industry requirements. There is an urgent need to find an environmentally friendly acidic black dye that has good dyeing reproducibility and exhaustion rate, good wet fastness and light fastness, certain migration and leveling properties, and is economical and can be used for cotton microfibers or cotton / Lycra blended fibers. Summary of the Invention

[0003] Problems to be solved by the invention

[0004] In view of the technical problems existing in the prior art, the present invention provides a black acid dye composition and a black acid dye. The black acid dye composition and the black acid dye of the present invention have good water solubility, excellent fastness to washing, fastness to hot pressing, fastness to rubbing, and fastness to perspiration, and are particularly excellent in terms of fastness to washing. In addition, the black acid dye composition of the present invention has strong compatibility.

[0005] Furthermore, the present invention also provides a preparation method of a black acid dye, which is simple and easy to implement, and the raw materials are easy to obtain, and is suitable for mass production.

[0006] Solutions for solving problems

[0007] The present invention first provides a black acid dye composition, which comprises the following components:

[0008] Component A as shown in formula (I):

[0009]

[0010] Component B as shown in formula (II):

[0011]

[0012] Component C as shown in formula (III):

[0013]

[0014] According to the black acid dye composition of the present invention, based on the total weight of the black acid dye composition, the weight percentage of component A is 60% to 94.9%; the weight percentage of component B is 5% to 30%; and the weight percentage of component C is 0.1% to 10%.

[0015] According to the black acid dye composition of the present invention, based on the total weight of the black acid dye composition, the weight percentage of component A is 79% to 94%; the weight percentage of component B is 5% to 15%; and the weight percentage of component C is 0.1% to 6%.

[0016] The present invention also provides a black acid dye, which comprises the black acid dye composition according to the present invention and an auxiliary agent.

[0017] According to the black acid dye of the present invention, the mass ratio of the black acid dye composition to the auxiliary agent is 1:0.01-30.

[0018] According to the black acid dye of the present invention, the auxiliary agent includes one or a combination of two or more of a filler, a dispersant, and a cosolvent.

[0019] According to the black acid dye of the present invention, the auxiliary agent includes one or a combination of two or more of naphthalenesulfonic acid formaldehyde condensate, sodium lignin sulfonate, sodium sulfate, and water-soluble starch.

[0020] The present invention further provides a method for preparing the black acid dye according to the present invention, which comprises uniformly mixing the dye components and the auxiliary agent in a mixer to obtain the black acid dye.

[0021] The present invention further provides use of the black acid dye according to the present invention for dyeing and / or printing fabrics.

[0022] According to the use of the present invention, the fabric is cotton, lycra, wool, silk, polyester or a blended fabric thereof.

[0023] Effects of the Invention

[0024] The black acid dye composition and the black acid dye of the present invention have good water solubility, excellent washing fastness, hot pressing fastness, rubbing fastness and perspiration fastness, and are particularly excellent in terms of washing fastness. In addition, the black acid dye composition of the present invention has strong compatibility.

[0025] The preparation method of the black acid dye of the present invention is simple and easy to implement, the raw materials are easy to obtain, and the method is suitable for mass production. DETAILED DESCRIPTION

[0026] Various exemplary embodiments, features, and aspects of the present invention will be described in detail below. The word "exemplary" is used herein to mean "serving as an example, embodiment, or illustration." Any embodiment described herein as "exemplary" is not necessarily to be construed as superior or preferred over other embodiments.

[0027] In addition, numerous specific details are provided in the following detailed description to better illustrate the present invention. Those skilled in the art will appreciate that the present invention can be practiced without certain specific details. In other instances, methods, means, equipment, and steps well known to those skilled in the art are not described in detail in order to highlight the main points of the present invention.

[0028] Unless otherwise stated, the units used in this specification are international standard units, and the numerical values ​​and numerical ranges appearing in the present invention should be understood to include the inevitable systematic errors in industrial production.

[0029] In this specification, the use of "may" includes both the meaning of performing a certain process and the meaning of not performing a certain process.

[0030] In this specification, references to "some specific / preferred embodiments," "other specific / preferred embodiments," "embodiments," etc., mean that the specific elements (e.g., features, structures, properties, and / or characteristics) described in connection with the embodiments are included in at least one embodiment described herein, and may or may not be present in other embodiments. In addition, it should be understood that the elements may be combined in various embodiments in any suitable manner.

[0031] In this specification, the numerical range expressed using "a numerical value A to a numerical value B" means a range including the endpoints A and B.

[0032] In this specification, when "normal temperature" or "room temperature" is used, the temperature may be 15-25°C.

[0033] The present invention first provides a black acid dye composition, which comprises the following components:

[0034] Component A as shown in formula (I):

[0035]

[0036] Component B as shown in formula (II):

[0037]

[0038] Component C as shown in formula (III):

[0039]

[0040] In the present invention, the compounds represented by formulas (I) to (III) can be synthesized according to methods well known to those skilled in the art, or commercially available products can be used. The compound represented by formula (I) is CI Acid Black 172 (CIACID BLACK 172#); the compound represented by formula (II) is CI Acid Black MG (CIACID BLACK MG); and the dye compound C is CI Acid Yellow 151 (CIACID YELLOW 151#).

[0041] Further, in some specific embodiments, based on the total weight of the black acid dye composition, the weight percentage of the component A is 60% to 94.9%, preferably 79% to 94%, for example: 62%, 64%, 66%, 68%, 70%, 72%, 74%, 76%, 78%, 80%, 82%, 84%, 86%, 88%, 90%, 92%, etc.; the weight percentage of the component B is 5% to 30%, preferably 5% to 15%, for example: 6%, 8%, 10%, 12%, 14%, 16%, 18%, 20%, 22%, 24%, 26%, 28%, etc.; the weight percentage of the component C is 0.1% to 10%, preferably 0.1% to 6%, for example: 1%, 2%, 3%, 4%, 5%, 6%, 7%, 8%, 9%, etc.

[0042] The present invention also provides a black acid dye, which comprises the black acid dye composition according to the present invention and an auxiliary agent, wherein the mass ratio of the black acid dye composition to the auxiliary agent is 1:0.01-30, for example: 1:0.1, 1:0.5, 1:1, 1:5, 1:10, 1:20, 1:30, etc.

[0043] Specifically, in the present invention, the auxiliary agent is a combination of one or more of a filler, a dispersant, and a solubility aid. There is no particular limitation on the specific type of the dispersant, and it can be a dispersant commonly used in the art. Preferably, the dispersant can be a combination of one or more of naphthalenesulfonic acid formaldehyde condensate and lignin sulfonate. The dye dispersant preferably includes a combination of one or more of naphthalenesulfonic acid formaldehyde condensate (e.g., dispersant MF, dispersant CNF, diffusant NNO) or sodium lignin sulfonate (e.g., lignin 85A, lignin 83A). The filler includes a combination of one or more of water-soluble starch, sodium sulfate, etc.

[0044] The black acid dye of the invention has good water solubility, excellent soap-washing color fastness, hot pressing color fastness and light fastness indexes, and is particularly superior to other similar products in terms of water washing fastness, and has extremely strong compatibility.

[0045] The present invention also provides a method for preparing the black acid dye according to the present invention, comprising uniformly mixing the dye components and the auxiliary agent to obtain the black acid dye composition.

[0046] The present invention also provides a use of the black acid dye according to the present invention for dyeing and / or printing fabrics.

[0047] According to the use of the present invention, the fabric is cotton, lycra, wool, silk, polyester or a blended fabric thereof.

[0048] The present invention also provides a fabric, which is prepared by dyeing and / or printing with the black acid dye of the present invention.

[0049] Example

[0050] The embodiments of the present invention will be described in detail below with reference to the examples, but it will be understood by those skilled in the art that the following examples are merely illustrative of the present invention and should not be construed as limiting the scope of the invention. Where specific conditions are not specified in the examples, the methods were performed according to conventional conditions or the conditions recommended by the manufacturer. Where the manufacturers of the reagents or instruments are not specified, they are all conventional products that can be obtained commercially.

[0051] Examples 1 to 10

[0052] According to the raw material ratio shown in Table 1, dye component A, dye component B, dye component C and auxiliary agents were ground into powder by a grinder and then mixed evenly in a mixer to obtain a black acid dye.

[0053] Component A represented by formula (I) is CIACID BLACK 172# produced by Zhejiang Dajing Chemical Co., Ltd.; component B represented by formula (II) is CIACID BLACK MG produced by Zhejiang Dajing Chemical Co., Ltd.; and component C represented by formula (II) is CIACID YELLOW 151# produced by Zhejiang Dajing Chemical Co., Ltd.

[0054] Table 1 Unit: Gram

[0055]

[0056] Performance Testing

[0057] The acid dye composition prepared in the above embodiment was subjected to performance testing, and the testing method was as follows:

[0058] 0.5 g of each of the black acid dyes prepared in Examples 1 to 10 was taken and prepared with water to prepare a black acid dye solution with a concentration of 0.5 g / 500 ml. 20 ml of the black acid dye solution was mixed with 80 ml of water, and the pH of the dye bath was adjusted to 5.5 with acetic acid. 2 g of cotton fiber was added to each of the solutions. The solution was then heated to 98°C within 60 minutes for dyeing, kept warm for 45 minutes, and cooled to 60°C for sampling.

[0059] The color of the fabric samples was observed and their color fastness (fastness to washing, fastness to rubbing, fastness to perspiration and fastness to hot pressing) was determined using GB / T3921-1997, GB / T3920-1997, GB / T3922-1995 and GB / T6152-1997. The test results are shown in Table 2.

[0060] The compatibility was then tested using the overall method, specifically as follows: Components A, B, and C in Examples 1-10 were respectively prepared in equal proportions to form dye liquors. The dye liquors were used for a lifting power test, and the dyeing performance was observed and recorded after being kept at 30°C, 45°C, 60°C, 75°C, 90°C, and 98°C for 30 minutes. The dyeing performance of the residual dye liquor was then observed and recorded, and the color changes at each temperature were compared to obtain a compatibility grade.

[0061] Table 2 Level

[0062] Example Compatibility Washing fastness Friction fastness Perspiration fastness Hot pressing fastness Example 1 A 4-5 5 4-5 4 Example 2 A 5 5 4-5 4 Example 3 A 5 4-5 5 4 Example 4 AB 5 5 5 4 Example 5 A 5 5 4-5 4 Example 6 A 5 4-5 5 4 Example 7 A 5 4-5 5 4 Example 8 A 4-5 5 4-5 4 Example 9 A 5 5 5 4 Example 10 AB 5 5 5 4

[0063] As can be seen from Table 1, the black acid dye composition and the black acid dye of the present invention have good water solubility, excellent color fastness to soap washing, color fastness to hot pressing, color fastness to rubbing, and color fastness to perspiration and light fastness, and are particularly excellent in terms of water fastness, which is superior to other similar products. In addition, the black acid dye composition of the present invention has strong compatibility.

[0064] It should be noted that, although the technical solutions of the present invention are described with specific examples, those skilled in the art will appreciate that the present invention should not be limited thereto.

[0065] While various embodiments of the present invention have been described above, the above descriptions are intended to be illustrative, non-exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is selected to best explain the principles of the embodiments, their practical applications, or technological improvements in the marketplace, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A black acid dye composition, characterized in that, The invention comprises the following components: component A as shown in formula (I): Component B as shown in formula (II): Component C as shown in formula (III): Based on the total weight of the black acid dye composition, the weight percentage of the component A is 60% to 94.9%; the weight percentage of the component B is 5% to 30%; and the weight percentage of the component C is 0.1% to 10%.

2. The black acid dye composition according to claim 1, wherein Based on the total weight of the black acid dye composition, the weight percentage of component A is 79% to 94%; the weight percentage of component B is 5% to 15%; and the weight percentage of component C is 0.1% to 6%.

3. A black acid dye, characterized in that The invention comprises the black acid dye composition according to claim 1 or 2 and an auxiliary agent.

4. The black acid dye according to claim 3, wherein The mass ratio of the black acid dye composition to the auxiliary agent is 1:0.01-30.

5. The black acid dye according to claim 3 or 4, wherein The auxiliary agent includes one or a combination of two or more of a filler, a dispersant, and a cosolvent.

6. The black acid dye according to claim 5, characterized in that The auxiliary agent comprises one or a combination of two or more of naphthalenesulfonic acid formaldehyde condensate, sodium lignin sulfonate, sodium sulfate and water-soluble starch.

7. A method for preparing a black acid dye according to any one of claims 3 to 6, characterized in that: The method comprises the steps of uniformly mixing various dye components and auxiliary agents in a mixer to obtain a black acid dye.

8. Use of the black acid dye according to any one of claims 3 to 6 for dyeing and / or printing fabrics.

9. The use according to claim 8, characterized in that The fabric is cotton, lycra, wool, silk, polyester or a blended fabric thereof.

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