Organic solvent dye and preparation method thereof

Abstract

The invention provides an organic solvent dye and a preparation method thereof. The solvent dye is prepared from the following components in parts by weight: 3 to 7.8 parts of anthraquinone, 16 to 35 parts of cosolvent, 1.1 to 2.7 parts of light stabilizer, 0.8 to 2.3 parts of corrosion inhibitor, 0.7 to 1.5 parts of surfactant, 0.9 to 2.1 parts of dispersing agent and 1 to 3 parts of sodium polyacrylate. The solvent dye further comprises the following components in parts by weight: 10-25 parts of a dye carrier, 5-15 parts of a plasticizer and 0.2-0.8 part of a pH regulator. The method has the characteristics of simplicity and high efficiency, the use of organic solvents harmful to the environment can be effectively reduced, and meanwhile, the solubility, light resistance and weather resistance of the dye are improved. The organic solvent dye shows excellent performance in the application process, can meet the dyeing requirements of different non-water-based media, and has wide market application prospects. In addition, the preparation method of the dye is easy to operate and low in cost.

Description

Technical Field

[0001] The invention relates to the technical field of solvent dyes, in particular to an organic solvent dye and a preparation method thereof. Background Art

[0002] Solvent dyes are a type of dye that can dissolve in organic solvents but not easily in water. This type of dye is mainly used to dye non-aqueous media, such as oils, paints, plastics, cosmetics, inks, etc. The main difference between solvent dyes and water-based dyes is their dissolution medium: solvent dyes rely on organic solvents, while water-based dyes rely on water.

[0003] However, due to their solubility characteristics, the synthesis of solvent dyes usually needs to be carried out in organic solvents, which may involve the use of organic solvents that are harmful to the environment.

[0004] At present, there are many kinds of solvent dyes on the market, but they still have limitations in solubility, light resistance and weather resistance. Therefore, it is very important to develop organic solvent dyes. Summary of the invention

[0005] The object of the present invention is to provide an organic solvent dye and a preparation method thereof, so as to solve the problems in the prior art.

[0006] To achieve the above object, the present invention provides the following technical solution: In a first aspect, the present invention provides an organic solvent dye, wherein the components and contents of the solvent dye are as follows:

[0007] 3-7.8 parts of anthraquinone, 16-35 parts of cosolvent, 1.1-2.7 parts of light stabilizer, 0.8-2.3 parts of corrosion inhibitor, 0.7-1.5 parts of surfactant, 0.9-2.1 parts of dispersant, 1-3 parts of sodium polyacrylate.

[0008] Preferably, the solvent dye further comprises the following components: 10 to 25 parts of a dye carrier, 5 to 15 parts of a plasticizer, and 0.2 to 0.8 parts of a pH regulator.

[0009] Preferably, the anthraquinone is 9,10-anthraquinone, and its purity is not less than 98%.

[0010] Preferably, the co-solvent is one or more of xylene, ethyl acetate, ethylene glycol, and propylene glycol.

[0011] Preferably, the light stabilizer is one or more of benzophenone, benzotriazole, substituted acrylonitrile and triazine.

[0012] Preferably, the corrosion inhibitor is one or more of ethylenediaminetetraacetic acid, phosphonic acid triacetate, and aminotriacetic acid.

[0013] Preferably, the surfactant is one or more of polyvinyl alcohol, polyoxyethylene ether, and fatty alcohol polyoxyethylene ether.

[0014] A second aspect of the present invention provides a method for preparing an organic solvent dye, comprising the following steps:

[0015] Step (1), mixing the anthraquinone, cosolvent, light stabilizer, anticorrosive, surfactant, dispersant, sodium polyacrylate, dye carrier, plasticizer, and pH adjuster in respective weight fractions to obtain a mixture.

[0016] Step (2), heating the mixture to 60-120° C. and stirring at this temperature for 1-3 hours to ensure that each component is fully dissolved and mixed, and then cooling the mixture to room temperature to obtain the organic solvent dye.

[0017] The present invention has at least the following beneficial effects:

[0018] The present invention provides an organic solvent dye and a preparation method thereof, which is simple and efficient, can effectively reduce the use of organic solvents harmful to the environment, and simultaneously improve the solubility, light resistance and weather resistance of the dye. The organic solvent dye of the present invention exhibits excellent performance during application, can meet the dyeing requirements of different non-aqueous media, and has a wide market application prospect. In addition, the dye preparation method of the present invention is easy to operate, has low cost, and is suitable for large-scale production. DETAILED DESCRIPTION

[0019] Unless otherwise defined, all technical and scientific terms used in this specification have the same meanings as those commonly understood by technicians in the technical field to which the invention belongs. The terms used in this specification and in the description of the present invention are only for the purpose of describing specific embodiments and are not used to limit the present invention. The term "and / or" used in this specification includes any and all combinations of one or more related listed items.

[0020] Example 1

[0021] An organic solvent dye, the components and contents of the solvent dye are as follows:

[0022] 3 parts of anthraquinone, 18 parts of cosolvent, 1.2 parts of light stabilizer, 0.9 parts of corrosion inhibitor, 0.7 parts of surfactant, 0.9 parts of dispersant, 1 part of sodium polyacrylate, 13 parts of dye carrier, 5 parts of plasticizer, and 0.3 parts of pH adjuster.

[0023] Among them, the cosolvent is xylene, the light stabilizer is benzophenone, the anti-corrosion agent is ethylenediaminetetraacetic acid, and the surfactant is polyvinyl alcohol.

[0024] The above method for preparing organic solvent dye comprises the following steps:

[0025] Step (1), mixing anthraquinone, a cosolvent, a light stabilizer, an anticorrosive agent, a surfactant, a dispersant, sodium polyacrylate, a dye carrier, a plasticizer, and a pH adjuster in respective weight fractions to obtain a mixture.

[0026] Step (2), heating the mixture to 60-120° C. and stirring at this temperature for 1-3 hours to ensure that each component is fully dissolved and mixed, and then cooling the mixture to room temperature to obtain the organic solvent dye.

[0027] Example 2

[0028] An organic solvent dye, the components and contents of the solvent dye are as follows:

[0029] 5 parts of anthraquinone, 25 parts of cosolvent, 1.6 parts of light stabilizer, 1.3 parts of corrosion inhibitor, 0.9 parts of surfactant, 1.3 parts of dispersant, 1.5 parts of sodium polyacrylate, 16 parts of dye carrier, 9 parts of plasticizer, and 0.4 parts of pH adjuster.

[0030] The cosolvent is ethyl acetate, the light stabilizer is benzotriazole, the corrosion inhibitor is phosphonic acid triacetate, and the surfactant is polyoxyethylene ether.

[0031] The above method for preparing organic solvent dye comprises the following steps:

[0032] Step (1), mixing anthraquinone, a cosolvent, a light stabilizer, an anticorrosive agent, a surfactant, a dispersant, sodium polyacrylate, a dye carrier, a plasticizer, and a pH adjuster in respective weight fractions to obtain a mixture.

[0033] Step (2), heating the mixture to 60-120° C. and stirring at this temperature for 1-3 hours to ensure that each component is fully dissolved and mixed, and then cooling the mixture to room temperature to obtain the organic solvent dye.

[0034] Example 3

[0035] An organic solvent dye, the components and contents of the solvent dye are as follows:

[0036] 6.5 parts of anthraquinone, 30 parts of cosolvent, 1.9 parts of light stabilizer, 1.5 parts of corrosion inhibitor, 1.2 parts of surfactant, 1.7 parts of dispersant, 1.9 parts of sodium polyacrylate, 20 parts of dye carrier, 11.6 parts of plasticizer, and 0.6 parts of pH adjuster.

[0037] The cosolvent is a mixture of ethylene glycol and propylene glycol, the light stabilizer is substituted acrylonitrile, the corrosion inhibitor is aminotriacetic acid, and the surfactant is fatty alcohol polyoxyethylene ether.

[0038] The above method for preparing organic solvent dye comprises the following steps:

[0039] Step (1), mixing anthraquinone, a cosolvent, a light stabilizer, an anticorrosive agent, a surfactant, a dispersant, sodium polyacrylate, a dye carrier, a plasticizer, and a pH adjuster in respective weight fractions to obtain a mixture.

[0040] Step (2), heating the mixture to 60-120° C. and stirring at this temperature for 1-3 hours to ensure that each component is fully dissolved and mixed, and then cooling the mixture to room temperature to obtain the organic solvent dye.

[0041] Example 4

[0042] An organic solvent dye, the components and contents of the solvent dye are as follows:

[0043] 7 parts of anthraquinone, 32 parts of cosolvent, 2.5 parts of light stabilizer, 2.1 parts of corrosion inhibitor, 1.3 parts of surfactant, 1.9 parts of dispersant, 2.3 parts of sodium polyacrylate, 21 parts of dye carrier, 12.5 parts of plasticizer, and 0.7 parts of pH adjuster.

[0044] The cosolvent is a mixture of xylene and ethyl acetate, the light stabilizer is triazines, the corrosion inhibitor is ethylenediaminetetraacetic acid, and the surfactant is polyvinyl alcohol.

[0045] The above method for preparing organic solvent dye comprises the following steps:

[0046] Step (1), mixing anthraquinone, a cosolvent, a light stabilizer, an anticorrosive agent, a surfactant, a dispersant, sodium polyacrylate, a dye carrier, a plasticizer, and a pH adjuster in respective weight fractions to obtain a mixture.

[0047] Step (2), heating the mixture to 60-120° C. and stirring at this temperature for 1-3 hours to ensure that each component is fully dissolved and mixed, and then cooling the mixture to room temperature to obtain the organic solvent dye.

[0048] Example 5

[0049] An organic solvent dye, the components and contents of the solvent dye are as follows:

[0050] 7.8 parts of anthraquinone, 34 parts of cosolvent, 2.6 parts of light stabilizer, 2.3 parts of corrosion inhibitor, 1.4 parts of surfactant, 2 parts of dispersant, 2.7 parts of sodium polyacrylate, 24 parts of dye carrier, 14 parts of plasticizer, and 0.8 parts of pH adjuster.

[0051] The cosolvent is ethylene glycol, the light stabilizer is benzophenone, the corrosion inhibitor is triacetate of phosphonic acid, and the surfactant is polyoxyethylene ether.

[0052] The above method for preparing organic solvent dye comprises the following steps:

[0053] Step (1), mixing anthraquinone, a cosolvent, a light stabilizer, an anticorrosive agent, a surfactant, a dispersant, sodium polyacrylate, a dye carrier, a plasticizer, and a pH adjuster in respective weight fractions to obtain a mixture.

[0054] Step (2), heating the mixture to 60-120° C. and stirring at this temperature for 1-3 hours to ensure that each component is fully dissolved and mixed, and then cooling the mixture to room temperature to obtain the organic solvent dye.

[0055] The invention can effectively reduce the use of organic solvents that are harmful to the environment, and at the same time improve the solubility, light resistance and weather resistance of the dye. The organic solvent dye of the invention exhibits excellent performance during application, can meet the dyeing requirements of different non-aqueous media, and has a wide market application prospect.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may also be combined, the steps may be implemented in any order, and there are many other changes in different aspects of the present invention as above, which are not provided in detail for the sake of simplicity. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they may still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An organic solvent dye, characterized in that: The various components and contents of the solvent dye are as follows: 3-7.8 parts of anthraquinone, 16-35 parts of cosolvent, 1.1-2.7 parts of light stabilizer, 0.8-2.3 parts of corrosion inhibitor, 0.7-1.5 parts of surfactant, 0.9-2.1 parts of dispersant, 1-3 parts of sodium polyacrylate.

2. An organic solvent dye according to claim 1, characterized in that: The solvent dye further comprises the following components in parts by mass: 10 to 25 parts of a dye carrier, 5 to 15 parts of a plasticizer, and 0.2 to 0.8 parts of a pH regulator.

3. An organic solvent dye according to claim 1, characterized in that: The anthraquinone is 9,10-anthraquinone, and the purity of the anthraquinone is not less than 98%.

4. An organic solvent dye according to claim 1, characterized in that: The co-solvent is one or more of xylene, ethyl acetate, ethylene glycol, and propylene glycol.

5. An organic solvent dye according to claim 1, characterized in that: The light stabilizer is one or more of benzophenone, benzotriazole, substituted acrylonitrile and triazine.

6. An organic solvent dye according to claim 1, characterized in that: The corrosion inhibitor is one or more of ethylenediaminetetraacetic acid, phosphonic acid triacetate, and aminotriacetic acid.

7. An organic solvent dye according to claim 1, characterized in that: The surfactant is one or more of polyvinyl alcohol, polyoxyethylene ether, and fatty alcohol polyoxyethylene ether.

8. The method for preparing an organic solvent dye according to any one of claims 1 to 7, characterized in that: The following steps are involved: Step (1), mixing the anthraquinone, cosolvent, light stabilizer, anticorrosive, surfactant, dispersant, sodium polyacrylate, dye carrier, plasticizer, and pH adjuster in respective weight fractions to obtain a mixture. Step (2), heating the mixture to 60-120° C. and stirring at this temperature for 1-3 hours to ensure that each component is fully dissolved and mixed, and then cooling the mixture to room temperature to obtain the organic solvent dye.