Acid dye composition, acid dye and preparation method and application thereof

Abstract

The invention provides an acid dye composition, an acid dye and a preparation method and application thereof. The acid dye composition comprises the following components: a component A, a component B and a component C, wherein the component A is C.I. Acid red 414; the component B is selected from one or two of C.I. Acid red 279 and C.I. Acid red 315, and the component C is one or two of C.I. Acid red 279 and C.I. Acid red 315. When the acid dye composition and the acid dye are used for dyeing wool, chinlon and blended fabrics thereof, the acid dye composition and the acid dye have good lifting power and compatibility and also have excellent washing fastness, rubbing fastness and perspiration fastness.

Description

Technical Field

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

[0002] With the improvement of living standards in recent years, people's environmental awareness has gradually increased. In the printing and dyeing industry, higher requirements are also placed on the dyeing performance and environmental performance of dyes. Most of the acid dyes commonly used in the market are single components, with average dyeing effect and compatibility, and poor application performance on wool and nylon.

[0003] Therefore, it is imperative to select an environmentally friendly acid red dye with good dyeing reproducibility and exhaustion rate, excellent dyeing color fastness, certain dyeing migration and leveling properties, economical price, and excellent isochromaticity on wool / nylon blended fibers. Summary of the invention

[0004] Problem that the invention aims to solve

[0005] The object of the present invention is to provide an acid dye composition and an acid dye, which, when used for dyeing wool, nylon and their blended fabrics, have good lifting power and compatibility, and also have excellent washing fastness, rubbing fastness and perspiration fastness.

[0006] Furthermore, the present invention also provides a method for preparing an acid dye, the raw materials of which are easy to obtain, the preparation method is simple and easy, and is suitable for mass production.

[0007] Solutions for solving problems

[0008] The present invention provides an acid dye composition, which comprises the following components:

[0009] Component A, component A is CI Acid Red 414;

[0010] Component B: Component B is selected from one or both of CI Acid Red 279 and CI Acid Red 315.

[0011] According to the acid dye composition of the present invention, based on the total weight of the acid dye composition,

[0012] The weight percentage of component A is 15% to 95%, preferably 20% to 95%;

[0013] The weight percentage of component B is 5% to 85%, preferably 5% to 80%.

[0014] According to the acid dye composition of the present invention, the acid dye composition further comprises component C, and the component C is CI Acid Red 138;

[0015] Preferably, based on the total weight of the acid dye composition, the weight percentage of component C is 1% to 50%, preferably 1% to 45%.

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

[0017] According to the acid dye of the present invention, the mass ratio of the acid dye composition to the auxiliary agent is 1:(0.01-100).

[0018] According to the acid dye of the present invention, the auxiliary agent comprises one or a combination of two or more of a filler, a dispersant and a co-solvent.

[0019] The present invention also provides a method for preparing the acid dye according to the present invention, which comprises the following steps: uniformly mixing the dye components and the auxiliary agent in a mixer to obtain the acid dye; or adding the auxiliary agent and water to the acid dye, beating and dissolving, and then spray drying to obtain the acid dye.

[0020] The present invention also provides a use of the acid dye according to the present invention for dyeing and / or printing fabrics.

[0021] According to the use of the present invention, the fabric is wool, nylon or a blended fabric of wool and nylon.

[0022] The present invention also provides a fabric, which is prepared by dyeing and / or printing with the acid dye according to the present invention.

[0023] Effects of the Invention

[0024] The acid dye composition and the acid dye of the invention have good lifting power and compatibility when used for dyeing wool, nylon and their blended fabrics, and also have excellent washing fastness, rubbing fastness and perspiration fastness.

[0025] Furthermore, the preparation method of the acid dye of the present invention has easy-to-obtain raw materials, is simple and easy to prepare, and 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" used here means "used as an example, embodiment or illustrative". Any embodiment described here as "exemplary" is not necessarily interpreted as being superior or better than other embodiments.

[0027] In addition, in order to better illustrate the present invention, numerous specific details are provided in the following specific embodiments. It should be understood by those skilled in the art that the present invention can be implemented without certain specific details. In other examples, methods, means, equipment and steps well known to those skilled in the art are not described in detail in order to highlight the subject matter of the present invention.

[0028] Unless otherwise stated, the units used in this specification are all 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 word "may" means both performing a certain process and not performing a certain process.

[0030] In this specification, the 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 exist 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 numerical values ​​A and B.

[0032] The present invention first provides an acid dye composition, which comprises the following components:

[0033] Component A, component A is CI Acid Red 414;

[0034] Component B: Component B is selected from one or both of CI Acid Red 279 and CI Acid Red 315.

[0035] The CI Acid Red 414 of the present invention is also called Neutral Red SRL, and its CAS number is 152287-09-7. CI Acid Red 414 can be used for dyeing wool or nylon. CI Acid Red 414 has high light fastness and excellent wet fastness, excellent compatibility with component B, can be dyed at the isoelectric point of wool, and is beneficial to protecting the fiber.

[0036] The CAS number of the CI Acid Red 279 of the present invention is 12220-27-8, and it can also be used for dyeing wool. CI Acid Red 279 has high light fastness and relatively high water fastness, and has excellent compatibility with component A.

[0037] The CAS number of the CI Acid Red 315 of the present invention is 70209-87-9, and it can be used for dyeing nylon, wool, silk and modified acrylic fiber. CI Acid Red 315 has high light fastness and high perspiration fastness, and has excellent compatibility with component A.

[0038] In some specific embodiments, based on the total weight of the acid dye composition, the weight percentage of component A is 15% to 95%, preferably 20% to 95%; the weight percentage of component B is 5% to 85%, preferably 5% to 80%. Specifically, the content of component A can be 15%, 20%, 25%, 30%, 35%, 40%, 45%, 50%, 55%, 60%, 65%, 70%, 75%, 80%, 85%, 90%, 95%, etc.; the content of component B can be 5%, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%, 50%, 55%, 60%, 65%, 70%, 75%, 80%, 85%, etc.

[0039] In some specific embodiments, the acid dye composition further includes component C, and the component C is CI Acid Red 138.

[0040] The CAS number of the CI Acid Red 138 of the present invention is 15792-43-5. CI Acid Red 138 can be used for dyeing real silk, tussah silk, wool or nylon. It can be obtained by diazotizing dodecylaniline and coupling with N-acetyl H acid. CI Acid Red 138 has high perspiration fastness and high washing fastness, and has excellent compatibility with component A and component B.

[0041] Preferably, based on the total weight of the acid dye composition, the weight percentage of component C is 1% to 50%, preferably 1% to 45%. The content of component C can be 1%, 5%, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%, 50%, etc.

[0042] In the present invention, the compounds shown in component A to component C can be synthesized in a manner familiar to those skilled in the art, or commercially available products can be used. Specifically, the manufacturers of CI Acid Red 414 are: Haining Del Chemical Co., Ltd., Hangzhou Hengsheng Chemical Co., Ltd., Hangzhou Xiasha Hengsheng Chemical Co., Ltd., Qingdao Haiwan Fine Chemical Co., Ltd., etc. The manufacturers of CI Acid Red 279 are: Haining Del Chemical Co., Ltd., etc. The manufacturers of CI Acid Red 315 are: Haining Del Chemical Co., Ltd., Hangzhou Hengsheng Chemical Co., Ltd., Hangzhou Xiasha Hengsheng Chemical Co., Ltd., Qingdao Haiwan Fine Chemical Co., Ltd., etc. The manufacturers of CI Acid Red 138 are: Haining Del Chemical Co., Ltd., Jinhua Henglikang Chemical Co., Ltd., Jinhua Shuanghong Chemical Co., Ltd., etc.

[0043] The present invention provides an acid dye, comprising the acid dye composition according to the present invention and an auxiliary agent. The mass ratio of the acid dye composition to the auxiliary agent can be 1:0.01-100, for example: 1:0.1, 1:0.5, 1:1, 1:5, 1:10, 1:20, 1:30, 1:40, 1:50, 1:60, 1:70, 1:80, 1:90, etc.

[0044] Specifically, in the present invention, the auxiliary agent is one or a combination of two or more of a filler, a dispersant, and a co-solvent.

[0045] The present invention does not particularly limit the specific type of dispersant, and it can be a dispersant commonly used in the art. Preferably, the dispersant can be a naphthalenesulfonic acid formaldehyde condensate, a lignin sulfonate, or a combination of two or more thereof. The dye dispersant preferably includes a naphthalenesulfonic acid formaldehyde condensate (e.g., dispersant MF, dispersant CNF, diffusant NNO) or a sodium lignin sulfonate (e.g., lignin 85A, lignin 83A), or a combination of two or more thereof.

[0046] In the present invention, the filler may include one or both of maltodextrin and sodium sulfate.

[0047] The acid dye of the invention has good lifting power and compatibility when used for dyeing wool, nylon and their blended fabrics, and also has excellent washing fastness, rubbing fastness and perspiration fastness.

[0048] The present invention also provides a method for preparing the acid dye according to the present invention, comprising the following steps: uniformly mixing the dye components and the auxiliary agent in a mixer to obtain the acid dye; or adding the auxiliary agent and water to the acid dye, beating and dissolving, and then spray drying to obtain the acid dye.

[0049] Furthermore, the present invention also provides a use of the acid dye according to the present invention for dyeing and / or printing fabrics. Specifically, the fabric is wool, nylon or a blended fabric of wool and nylon.

[0050] The present invention also provides a fabric, which is prepared by dyeing and / or printing with the acid dye according to the present invention.

[0051] Example

[0052] The embodiments of the present invention will be described in detail below in conjunction with the examples, but those skilled in the art will appreciate that the following examples are only used to illustrate the present invention and should not be considered to limit the scope of the present invention. If no specific conditions are specified in the examples, they are carried out according to conventional conditions or conditions recommended by the manufacturer. If the manufacturer of the reagents or instruments used is not specified, they are all conventional products that can be obtained commercially.

[0053] Examples 1 to 16

[0054] According to the raw material ratio shown in Table 1, dye component A, dye component B, dye component C and auxiliary agents are ground by a grinder and then mixed evenly in a mixer to obtain an acid dye.

[0055] Among them, component A to component C are known dye compounds and are commercially available.

[0056] CI Acid Red 414: The manufacturer of Examples 1 to 6, 12, and 13 is Haining Del Chemical Co., Ltd.; the manufacturer of Examples 7 to 11, 14 to 16, and Comparative Example 2 is Qingdao Haiwan Fine Chemical Co., Ltd.

[0057] CI Acid Red 279: The manufacturer of the examples and comparative examples is Haining Del Chemical Co., Ltd.

[0058] CI Acid Red 315: The manufacturer of Examples 2, 3, 7, 11, 12, 15, and 16 is Haining Del Chemical Co., Ltd.; the manufacturer of Examples 5, 6, 8, 13, and 14 is Qingdao Haiwan Fine Chemical Co., Ltd.

[0059] CI Acid Red 138: The manufacturer of Examples 2, 5, 6, 8 and Comparative Example 1 is Jinhua Shuanghong Chemical Co., Ltd.; the manufacturer of Examples 15, 16 and Comparative Example 2 is Jinhua Henglikang Chemical Co., Ltd. The manufacturer of CI Acid Red 336 is Zhejiang Dajing Chemical Co., Ltd.

[0060] The manufacturer of CI Acid Red 359 is Zhejiang Dajing Chemical Co., Ltd.

[0061] Table 1 Unit: Gram

[0062]

[0063] Comparative Example 1:

[0064] The method of Example 1 was repeated, except that the compound of component A in Example 1 was replaced by CI Acid Red 336, CAS No. 12239-11-1.

[0065] Comparative Example 2:

[0066] The method of Example 2 was repeated, except that the component B compound of Example 2 was replaced by CI Acid Red 359, CAS No. 61814-65-1.

[0067] Dyeing Example 1:

[0068] Accurately weigh 1 gram of the acid dye prepared in Examples 1 to 16 and Comparative Examples 1 to 2, dissolve it, stir it evenly, use a volumetric flask to make the volume to 500 mL, draw 25 mL of dye liquor into a dye cup, add 2.5 mL of 100 g / L anhydrous sodium sulfate and 2.5 mL of 30% glacial acetic acid, then add 70 mL of water, put in 5 grams of wool swatches, control the dyeing depth (owf) to 1.0%, and the bath ratio to 1:20. Raise the temperature to 100°C at a heating rate of 1°C / min, keep it warm for 55 minutes, then cool it to 50°C at a rate of 9.9°C / min to start sampling. The wool swatches are washed and dried to obtain wool fabrics.

[0069] Various fastness tests:

[0070] The dyed wool fabric was tested for washing fastness and rubbing fastness according to ISO 105-C10 and ISO 105-X12, respectively. The results are shown in Table 2 below.

[0071] Table 2

[0072]

[0073] The perspiration fastness of the dyed wool fabric was tested according to ISO105-E04. The results are shown in Table 3 below.

[0074] Table 3

[0075]

[0076] From the above data, it can be seen that the acid dye products of Examples 1 to 16 provided by the present invention have high washing fastness, rubbing fastness and perspiration fastness when dyeing wool fabrics, and have stable performance and have good market prospects.

[0077] The acid dye products of Comparative Examples 1 and 2 have low washing fastness and perspiration fastness (alkali), and the rubbing fastness of Comparative Example 2 is also low.

[0078] It should be noted that, although the technical solution of the present invention is introduced with specific examples, those skilled in the art will appreciate that the present invention should not be limited thereto.

[0079] The embodiments of the present invention have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or technical improvements in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. An acid dye composition, characterized in that, Includes the following components: Component A, component A is CI Acid Red 414; Component B: Component B is selected from one or both of CI Acid Red 279 and CI Acid Red 315.

2. The acid dye composition according to claim 1, characterized in that Based on the total weight of the acid dye composition, The weight percentage of component A is 15% to 95%, preferably 20% to 95%; The weight percentage of component B is 5% to 85%, preferably 5% to 80%.

3. The acid dye composition according to claim 1 or 2, characterized in that: The acid dye composition further comprises component C, and the component C is CI Acid Red 138; Preferably, based on the total weight of the acid dye composition, the weight percentage of component C is 1% to 50%, preferably 1% to 45%.

4. An acid dye, characterized in that The invention comprises the acid dye composition according to any one of claims 1 to 3 and an auxiliary agent.

5. The acid dye according to claim 4, characterized in that The mass ratio of the acid dye composition to the auxiliary agent is 1:(0.01-100).

6. The acid dye according to claim 4 or 5, characterized in that The auxiliary agent includes one or a combination of two or more of a filler, a dispersant and a co-solvent.

7. A method for preparing an acid dye according to any one of claims 4 to 6, characterized in that: The following steps are involved: The dye components and the auxiliary agent are mixed evenly in a mixer to obtain an acid dye; or the auxiliary agent and water are added to the acid dye, and after pulping and dissolving, the acid dye is spray-dried to obtain the acid dye.

8. Use of the acid dye according to any one of claims 4 to 6 for dyeing and / or printing fabrics.

9. The use according to claim 8, characterized in that The fabric is wool, nylon or a blended fabric of wool and nylon.

10. A fabric, characterized in that: The method is prepared by dyeing and / or printing with the acid dye according to any one of claims 4 to 6.

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