A transfer ink, its preparation method and use

Abstract

This invention relates to a transfer ink, its preparation method, and its application, belonging to the technical field of inks. A transfer ink comprises the following components: modified acrylic resin, surfactant, dye, lubricant, other additives, and deionized water. The preparation of the modified acrylic resin includes the following steps: mixing acrylic acid, ethyl methacrylate, hydroxyethyl acrylate, fumed silica, sodium dodecyl sulfate, an initiator, and deionized water; heating the mixture; adding an antibacterial agent, glycidyl methacrylate, and anhydrous ethanol; and stirring at a constant temperature to obtain the final product. The modified acrylic resin obtained by this invention provides excellent dispersion stability for other components, enabling the ink to maintain stable fluidity and viscosity for a long time, reducing the likelihood of gelation, oil-water separation, and coarsening. It significantly improves the ink's antibacterial properties, hardness, and adhesion, ensuring that the water-based ink composed of these components has high film-forming hardness, significant antibacterial properties, and strong adhesion to the substrate.

Description

Technical Field

[0001] This invention belongs to the technical field of inks, and relates to a transfer ink, its preparation method, and its application. Background Technology

[0002] Transfer inks are primarily composed of the following key components: dyes, which provide the color and give the ink its specific hue; acrylic resins, which act as binders, fixing the dyes and improving ink adhesion; lubricants, which improve ink flow and printing results; surfactants, which help the ink spread evenly on the substrate; and other additives, such as stabilizers and antioxidants, to enhance the ink's stability and durability. Additionally, deionized water acts as a solvent, helping to regulate the ink's viscosity and flowability, making it more suitable for the transfer process. These components, through precise formulation and preparation processes, collectively create high-performance transfer inks.

[0003] However, traditional acrylic resin inks suffer from drawbacks such as low adhesion, poor water resistance, weak mechanical strength, and lack of antibacterial properties. Schiff base compounds are easily synthesized and can react with metal ions to construct diverse Schiff base metal complexes with varying properties. Furthermore, the reductive ammoniation and substitution of Schiff bases can prepare important fine chemical intermediates, secondary and tertiary amines. Schiff bases and their complexes exhibit excellent antibacterial, antioxidant, anti-tuberculosis, and anticancer biological activities. Summary of the Invention

[0004] The purpose of this invention is to provide a transfer ink, its preparation method, and its application. The modified acrylic resin obtained by this invention provides excellent dispersion stability for other components, enabling the ink to maintain stable fluidity and viscosity over a long period, and reducing the likelihood of problems such as gelation, oil-water separation, and coarsening. Simultaneously, it significantly improves the ink's antibacterial properties, hardness, and adhesion, ensuring that the water-based ink composed of these components exhibits high film-forming hardness, significant antibacterial properties, and strong adhesion to substrates.

[0005] The objective of this invention can be achieved through the following technical solutions:

[0006] A transfer ink comprises the following components in parts by weight:

[0007] The mixture contains 25-30 parts modified acrylic resin, 0.7-1.0 parts surfactant, 21-24 parts dye, 22-25 parts lubricant, 40-45 parts other additives, and 45-55 parts deionized water.

[0008] As a preferred embodiment of the present invention, the surfactant is composed of acetylenic diol polyoxyethylene ether and dimethyloctylenic diol mixed in a mass ratio of 1.2-1.5:4.

[0009] As a preferred embodiment of the present invention, the lubricant is composed of sodium methacrylate and sodium lignosulfonate mixed in a mass ratio of 1.0-1.5:9-10.

[0010] As a preferred embodiment of the present invention, the other additives are composed of propylene glycol, glycerin and triethanolamine in a mass ratio of 28-30:11-13:0.3-0.5.

[0011] As a preferred embodiment of the present invention, the dye is one or more of Disperse Red, Disperse Blue and Disperse Yellow; the embodiments and comparative examples of the present invention use Disperse Red 60.

[0012] As a preferred embodiment of the present invention, the method for preparing the modified acrylic resin includes the following steps:

[0013] Acrylic acid, ethyl methacrylate, hydroxyethyl acrylate, fumed silica, sodium dodecyl sulfate, initiator and deionized water are mixed and heated. Antibacterial agent, glycidyl methacrylate and anhydrous ethanol are added and stirred at a constant temperature. After cooling and adjusting the pH value, acrylic resin is obtained.

[0014] As a preferred embodiment of the present invention, the heating is performed to 60-65°C; the constant temperature stirring is performed at 65-72°C for 2.0-3.0 hours; the cooling is performed to 40-45°C; and the pH adjustment is performed to 7.5.

[0015] As a preferred embodiment of the present invention, the mass ratio of acrylic acid, ethyl methacrylate, hydroxyethyl acrylate, fumed silica, sodium dodecyl sulfate, initiator, deionized water, antibacterial agent, glycidyl methacrylate, and anhydrous ethanol is 20-21:34-40:3.8-4.2:2-3:0.5-0.8:0.8-1.0:45-50:1.2-1.5:4-6:10-13; the initiator is ammonium persulfate.

[0016] As a preferred embodiment of the present invention, the method for preparing the antibacterial agent includes the following steps:

[0017] S1. Para-aminobenzoic acid, 3-mercaptopropanol and deionized water are mixed and then subjected to ultrasonic treatment, followed by freeze drying to obtain composite particles.

[0018] S2. Mix the composite particles and the ethanol aqueous solution, add the composite monomer and stir at a constant temperature, centrifuge to remove the supernatant, wash, and vacuum dry to obtain the intermediate.

[0019] S3. Place the intermediate in an inorganic salt solution, stir and mix, let stand, filter, and vacuum dry to obtain the final product.

[0020] As a preferred technical solution of the present invention, in step S1, the ultrasonic treatment is performed at a power of 1000-1200W for 10-15 minutes; the mass ratio of p-aminobenzoic acid, 3-mercaptopropanol and deionized water is 8-9:1.5-1.8:30-40.

[0021] As a preferred embodiment of the present invention, in step S2, the constant temperature stirring is carried out at a temperature of 45-52℃ for 6-8 hours; the washing is carried out by washing three times with anhydrous ethanol; the vacuum drying is carried out by vacuum drying at a temperature of 60-70℃ to constant weight; the mass ratio of the composite particles, the ethanol aqueous solution and the composite monomer is 10-13:140-150:13.5-15.0; the composite monomer is composed of acrolein and pyridine formaldehyde in a mass ratio of 1.8-2.1:2.6-3.0; the concentration of the ethanol aqueous solution is 20wt%; the pyridine formaldehyde is 4-pyridine formaldehyde, which is a nitrogen-containing heterocyclic compound with good physiological and pharmacological activities. In the design of antibacterial agents, the introduction of a pyridine ring can usually improve the biochemical efficacy and metabolic stability of antibacterial components and enhance permeability.

[0022] As a preferred embodiment of the present invention, in step S3, the stirring and mixing is carried out at a speed of 500-800 rpm for 30-45 minutes; the standing time is 2-3 hours; the vacuum drying is carried out at a temperature of 70-80℃ to constant weight; the mass ratio of the intermediate to the inorganic salt solution is 12-14:40-50; the inorganic salt solution is prepared by mixing metal salt and deionized water at a mass ratio of 1.0-1.3:25-30; the metal salt is one or more of silver nitrate, copper nitrate, copper chloride, and silver chloride.

[0023] This invention discloses a method for preparing transfer ink, the method comprising the following steps: stirring dye, lubricant, 1 / 3 other additives and 1 / 3 deionized water at 500-800 rpm for 30-40 min, then adding modified acrylic resin, surfactant, the remaining other additives and the remaining deionized water, and stirring at 600-900 rpm for 45-60 min to obtain the ink.

[0024] This invention discloses a transfer ink that can perform transfer printing on a printing substrate and a pre-formed printing layer on its surface. The printing substrate can be textiles, ceramics, metals, etc.

[0025] The beneficial effects of this invention are:

[0026] The modified acrylic resin obtained in this invention provides excellent dispersion stability for other components, enabling the ink to maintain stable fluidity and viscosity over a long period of time, and reducing the likelihood of problems such as gelation, oil-water separation, and coarsening. Simultaneously, it significantly improves the ink's antibacterial properties, hardness, and adhesion, ensuring that the water-based ink composed of these components exhibits high film-forming hardness, significant antibacterial properties, and strong adhesion to substrates. Detailed Implementation

[0027] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with embodiments, is provided below. Example 1

[0028] A transfer ink comprises the following components in parts by weight:

[0029] The mixture comprises 25 parts modified acrylic resin, 0.7 parts surfactant, 21 parts dye, 22 parts lubricant, 40 parts other auxiliaries, and 45 parts deionized water; the surfactant is a mixture of acetylenic glycol polyoxyethylene ether and dimethyloctylenic glycol in a mass ratio of 1.2:4; the lubricant is a mixture of sodium methacrylate and sodium lignosulfonate in a mass ratio of 1.0:9; and the other auxiliaries are a mixture of propylene glycol, glycerin, and triethanolamine in a mass ratio of 28:11:0.3.

[0030] The preparation method of the modified acrylic resin includes the following steps:

[0031] Acrylic acid, ethyl methacrylate, hydroxyethyl acrylate, fumed silica, sodium dodecyl sulfate, initiator, and deionized water were mixed and heated to 60°C. An antibacterial agent, glycidyl methacrylate, and anhydrous ethanol were added, and the mixture was stirred at 65°C for 2.0 h. The mixture was then cooled to 40°C, and the pH was adjusted to 7.5 to obtain an acrylic resin. The mass ratio of acrylic acid, ethyl methacrylate, hydroxyethyl acrylate, fumed silica, sodium dodecyl sulfate, initiator, deionized water, antibacterial agent, glycidyl methacrylate, and anhydrous ethanol was 20:34:3.8:2:0.5:0.8:45:1.2:4:10. The initiator was ammonium persulfate.

[0032] The method for preparing the antibacterial agent includes the following steps:

[0033] S1. After mixing p-aminobenzoic acid, 3-mercaptopropanol and deionized water, the mixture is ultrasonicated at 1000W for 10 minutes and then freeze-dried to obtain composite particles; wherein the mass ratio of p-aminobenzoic acid, 3-mercaptopropanol and deionized water is 8:1.5:30.

[0034] S2. The composite particles and ethanol aqueous solution are mixed, and the composite monomer is added. After stirring at 45°C for 6 hours, the supernatant is removed by centrifugation, and the mixture is washed three times with anhydrous ethanol. After vacuum drying at 60°C to constant weight, an intermediate is obtained. The mass ratio of the composite particles, ethanol aqueous solution and composite monomer is 10:140:13.5. The composite monomer is composed of acrolein and pyridine formaldehyde in a mass ratio of 1.8:2.6.

[0035] S3. The intermediate is placed in an inorganic salt solution and stirred at 500 rpm for 30 min, allowed to stand for 2 h, filtered, and then vacuum dried at 70 °C to constant weight to obtain the final product; wherein the mass ratio of the intermediate to the inorganic salt solution is 12:40; the inorganic salt solution is a mixture of metal salt and deionized water at a mass ratio of 1.0:25; the metal salt is a mixture of silver nitrate and copper nitrate at a mass ratio of 1:4.

[0036] A method for preparing a transfer ink includes the following steps: after stirring the dye, lubricant, 1 / 3 of other additives and 1 / 3 of deionized water at 500 rpm for 30 min, the modified acrylic resin, surfactant, the remaining other additives and the remaining deionized water are added and stirred at 600 rpm for 45 min to obtain the ink. Example 2

[0037] A transfer ink comprises the following components in parts by weight:

[0038] The mixture comprises 27 parts modified acrylic resin, 0.8 parts surfactant, 22 parts dye, 23 parts lubricant, 42 parts other auxiliaries, and 48 parts deionized water; the surfactant is a mixture of acetylenic glycol polyoxyethylene ether and dimethyloctylenic glycol in a mass ratio of 1.3:4; the lubricant is a mixture of sodium methacrylate and sodium lignosulfonate in a mass ratio of 1.2:9.5; and the other auxiliaries are a mixture of propylene glycol, glycerin, and triethanolamine in a mass ratio of 28.5:11.5:0.35.

[0039] The preparation method of the modified acrylic resin includes the following steps:

[0040] Acrylic acid, ethyl methacrylate, hydroxyethyl acrylate, fumed silica, sodium dodecyl sulfate, initiator, and deionized water were mixed and heated to 62°C. An antibacterial agent, glycidyl methacrylate, and anhydrous ethanol were added, and the mixture was stirred at 67°C for 2.5 hours. The mixture was then cooled to 42°C, and the pH was adjusted to 7.5 to obtain an acrylic resin. The mass ratio of acrylic acid, ethyl methacrylate, hydroxyethyl acrylate, fumed silica, sodium dodecyl sulfate, initiator, deionized water, antibacterial agent, glycidyl methacrylate, and anhydrous ethanol was 20.5:36:4.0:2.3:0.6:0.85:47:1.3:4.5:11. The initiator was ammonium persulfate.

[0041] The method for preparing the antibacterial agent includes the following steps:

[0042] S1. Para-aminobenzoic acid, 3-mercaptopropanol and deionized water are mixed and ultrasonicated at 1060W for 12 minutes, then freeze-dried to obtain composite particles; wherein the mass ratio of para-aminobenzoic acid, 3-mercaptopropanol and deionized water is 8.3:1.6:35.

[0043] S2. The composite particles and ethanol aqueous solution are mixed, and the composite monomer is added. After stirring at 47°C for 6.5 hours, the supernatant is removed by centrifugation, and the mixture is washed three times with anhydrous ethanol. After vacuum drying at 65°C to constant weight, an intermediate is obtained. The mass ratio of the composite particles, ethanol aqueous solution and composite monomer is 11:145:14. The composite monomer is composed of acrolein and pyridine formaldehyde in a mass ratio of 1.9:2.7.

[0044] S3. The intermediate is placed in an inorganic salt solution and stirred at 600 rpm for 35 min, allowed to stand for 2.5 h, filtered, and then vacuum dried at 75 °C to constant weight to obtain the final product; wherein the mass ratio of the intermediate to the inorganic salt solution is 12.5:45; the inorganic salt solution is a mixture of metal salt and deionized water at a mass ratio of 1.1:27; the metal salt is a mixture of silver nitrate and copper nitrate at a mass ratio of 1:4.

[0045] A method for preparing a transfer ink includes the following steps: after stirring the dye, lubricant, 1 / 3 of other additives and 1 / 3 of deionized water at 600 rpm for 35 min, the modified acrylic resin, surfactant, the remaining other additives and the remaining deionized water are added and stirred at 700 rpm for 50 min to obtain the ink. Example 3

[0046] A transfer ink comprises the following components in parts by weight:

[0047] The mixture comprises 28 parts modified acrylic resin, 0.9 parts surfactant, 23 parts dye, 24 parts lubricant, 43 parts other auxiliaries, and 52 parts deionized water; the surfactant is a mixture of acetylenic glycol polyoxyethylene ether and dimethyloctylenic glycol in a mass ratio of 1.4:4; the lubricant is a mixture of sodium methacrylate and sodium lignosulfonate in a mass ratio of 1.3:9.5; and the other auxiliaries are a mixture of propylene glycol, glycerin, and triethanolamine in a mass ratio of 29.5:12:0.45.

[0048] The preparation method of the modified acrylic resin includes the following steps:

[0049] Acrylic acid, ethyl methacrylate, hydroxyethyl acrylate, fumed silica, sodium dodecyl sulfate, initiator, and deionized water were mixed and heated to 63°C. An antibacterial agent, glycidyl methacrylate, and anhydrous ethanol were added, and the mixture was stirred at 70°C for 2.7 hours. The mixture was then cooled to 43°C, and the pH was adjusted to 7.5 to obtain an acrylic resin. The mass ratio of acrylic acid, ethyl methacrylate, hydroxyethyl acrylate, fumed silica, sodium dodecyl sulfate, initiator, deionized water, antibacterial agent, glycidyl methacrylate, and anhydrous ethanol was 20.5:38:4.0:2.7:0.7:0.95:48:1.4:5.5:12. The initiator was ammonium persulfate.

[0050] The method for preparing the antibacterial agent includes the following steps:

[0051] S1. Para-aminobenzoic acid, 3-mercaptopropanol and deionized water are mixed and ultrasonicated at 1130W for 13 minutes, then freeze-dried to obtain composite particles; wherein the mass ratio of para-aminobenzoic acid, 3-mercaptopropanol and deionized water is 8.5:1.5:38.

[0052] S2. The composite particles and ethanol aqueous solution are mixed, and the composite monomer is added. After stirring at 50°C for 7.5 hours, the supernatant is removed by centrifugation, and the mixture is washed three times with anhydrous ethanol. After vacuum drying at 65°C to constant weight, an intermediate is obtained. The mass ratio of the composite particles, ethanol aqueous solution and composite monomer is 12:145:14.5. The composite monomer is composed of acrolein and pyridine formaldehyde in a mass ratio of 2.0:2.9.

[0053] S3. The intermediate is placed in an inorganic salt solution and stirred at 700 rpm for 40 min, allowed to stand for 2.5 h, filtered, and then vacuum dried at 75 °C to constant weight to obtain the final product; wherein the mass ratio of the intermediate to the inorganic salt solution is 13.5:45; the inorganic salt solution is a mixture of metal salt and deionized water at a mass ratio of 1.2:28; the metal salt is a mixture of silver nitrate and copper nitrate at a mass ratio of 1:4.

[0054] A method for preparing a transfer ink includes the following steps: after stirring the dye, lubricant, 1 / 3 of other additives and 1 / 3 of deionized water at 700 rpm for 35 min, the modified acrylic resin, surfactant, the remaining other additives and the remaining deionized water are added and stirred at 800 rpm for 55 min to obtain the ink. Example 4

[0055] A transfer ink comprises the following components in parts by weight:

[0056] The mixture comprises 30 parts modified acrylic resin, 1.0 part surfactant, 24 parts dye, 25 parts lubricant, 45 parts other auxiliaries, and 55 parts deionized water; the surfactant is a mixture of acetylenic glycol polyoxyethylene ether and dimethyloctylenic glycol in a mass ratio of 1.5:4; the lubricant is a mixture of sodium methacrylate and sodium lignosulfonate in a mass ratio of 1.5:10; and the other auxiliaries are a mixture of propylene glycol, glycerin, and triethanolamine in a mass ratio of 30:13:0.5.

[0057] The preparation method of the modified acrylic resin includes the following steps:

[0058] Acrylic acid, ethyl methacrylate, hydroxyethyl acrylate, fumed silica, sodium dodecyl sulfate, initiator, and deionized water were mixed and heated to 65°C. An antibacterial agent, glycidyl methacrylate, and anhydrous ethanol were added, and the mixture was stirred at 72°C for 3.0 h. The mixture was then cooled to 45°C, and the pH was adjusted to 7.5 to obtain an acrylic resin. The mass ratio of acrylic acid, ethyl methacrylate, hydroxyethyl acrylate, fumed silica, sodium dodecyl sulfate, initiator, deionized water, antibacterial agent, glycidyl methacrylate, and anhydrous ethanol was 21:40:4.2:3:0.8:1.0:50:1.5:6:13. The initiator was ammonium persulfate.

[0059] The method for preparing the antibacterial agent includes the following steps:

[0060] S1. Para-aminobenzoic acid, 3-mercaptopropanol and deionized water are mixed and ultrasonicated at 1200W for 15 minutes, then freeze-dried to obtain composite particles; wherein the mass ratio of para-aminobenzoic acid, 3-mercaptopropanol and deionized water is 9:1.8:40.

[0061] S2. The composite particles and ethanol aqueous solution are mixed, and the composite monomer is added. After stirring at 52°C for 8 hours, the supernatant is removed by centrifugation, and the mixture is washed three times with anhydrous ethanol. After vacuum drying at 70°C to constant weight, an intermediate is obtained. The mass ratio of the composite particles, ethanol aqueous solution and composite monomer is 13:150:15.0. The composite monomer is composed of acrolein and pyridine formaldehyde in a mass ratio of 2.1:3.0.

[0062] S3. The intermediate is placed in an inorganic salt solution and stirred at 800 rpm for 45 min, allowed to stand for 3 h, filtered, and then vacuum dried at 80 °C to constant weight to obtain the final product; wherein the mass ratio of the intermediate to the inorganic salt solution is 14:50; the inorganic salt solution is a mixture of metal salt and deionized water at a mass ratio of 1.3:30; the metal salt is a mixture of silver nitrate and copper nitrate at a mass ratio of 1:4.

[0063] A method for preparing a transfer ink includes the following steps: after stirring the dye, lubricant, 1 / 3 of other additives and 1 / 3 of deionized water at 800 rpm for 40 min, the modified acrylic resin, surfactant, the remaining other additives and the remaining deionized water are added and stirred at 900 rpm for 60 min to obtain the ink.

[0064] Comparative Example 1

[0065] Compared with Example 3, Comparative Example 1 differs in that glycidyl methacrylate is not used, but all other aspects are the same.

[0066] Comparative Example 2

[0067] Compared with Example 3, Comparative Example 2 differs in that 3-mercaptopropanol is not used, but all other aspects are the same.

[0068] Comparative Example 3

[0069] Compared with Example 3, Comparative Example 3 differs in that acrolein is used instead of pyridine formaldehyde, while all other aspects are the same.

[0070] Comparative Example 4

[0071] Compared with Example 3, Comparative Example 4 differs in that pyridine formaldehyde is used instead of acrolein, otherwise they are the same.

[0072] Comparative Example 5

[0073] Compared with Example 3, Comparative Example 5 differs in that acrolein and pyridine formaldehyde are not used, but all other aspects are the same.

[0074] Comparative Example 6

[0075] Compared with Example 3, Comparative Example 6 differs in that it does not use metal salts, but is otherwise identical.

[0076] Comparative Example 7

[0077] Compared with Example 3, Comparative Example 7 differs in that it does not use p-aminobenzoic acid, but is otherwise identical.

[0078] The inks prepared in Examples 1-4 and Comparative Examples 1-7 were cured and then subjected to the following performance tests. The test results are shown in Table 1.

[0079] Antibacterial properties test: according to GB / T 21866-2008;

[0080] Hardness test: according to GB / T6739-2006;

[0081] Table 1

[0082]

[0083] As can be seen from the test results in Table 1, compared with Comparative Examples 1-7, the ink prepared by the present invention has excellent antibacterial properties and mechanical hardness in Examples 1-4.

[0084] As can be seen from the comparative analysis of Table 1 and Examples 1-4 and Comparative Examples 1-7, this invention provides excellent dispersion stability for silica and other components through the addition of the epoxy groups of glycidyl methacrylate. Therefore, the addition of fumed silica to the ink of this application enables the ink to maintain stable fluidity and viscosity for a long time, and is less prone to problems such as gelation, oil-water separation, and coarsening. At the same time, it also significantly improves the antibacterial properties, hardness, and adhesion of the ink, ensuring that the water-based ink mixed from these components has high film-forming hardness and strong adhesion to the substrate.

[0085] This invention utilizes a multi-mechanism Schiff alkali metal complex containing a pyridine structure to exert antibacterial effects. Specifically, the invention forms a complex through hydrogen bonding between mercaptopropanol and p-aminobenzoic acid. The amino group on p-aminobenzoic acid can form a covalent bond with acrolein and pyridine formaldehyde, resulting in a Schiff alkali organic network structure. The thiol group strongly adsorbs and stabilizes copper and silver salts, ultimately forming the Schiff alkali metal complex. This improves the stability and long-lasting antibacterial properties of the metal salts. The carbon-carbon double bond on acrolein significantly enhances the binding force between the antibacterial agent and acrylic resin, thereby improving the stability and durability of the effective antibacterial component and significantly enhancing the antibacterial properties of the ink. In terms of performance and mechanical strength, the addition of pyridine formaldehyde can improve the stability and antibacterial properties of p-aminobenzoic acid. Its combination with acrolein and p-aminobenzoic acid can effectively adsorb inorganic metal salts, further enhancing its stability and durability. Furthermore, the carboxyl and hydroxyl groups on p-aminobenzoic acid and mercaptopropanol can form chemical and physical bonds through glycidyl methacrylate, further improving the compatibility of the antibacterial agent in the acrylic resin ink system. The thiol groups of mercaptopropanol can further enhance the adsorption of metal salts, further improving its antibacterial properties. Simultaneously, its hydroxyl groups can form hydroxyl groups with the carboxyl groups on the acrylic resin, improving the dispersibility of the antibacterial agent in the acrylic resin ink system and increasing its mechanical hardness.

[0086] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any indirect modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A transfer ink, characterized by, The following components are included by weight parts: The modified acrylic resin 25-30 parts, surfactant 0.7-1.0 parts, dye 21-24 parts, lubricant 22-25 parts, other auxiliary 40-45 parts and deionized water 45-55 parts; The preparation method of the modified acrylic resin comprises the following steps: The acrylic acid, methyl methacrylate, hydroxyethyl acrylate, fumed silica, sodium dodecyl sulfate, initiator and deionized water are mixed and heated to warm, the antibacterial agent, glycidyl methacrylate and anhydrous ethanol are added for constant temperature stirring, cooled, the pH value is adjusted, and the acrylic resin is obtained; The preparation method of the antibacterial agent comprises the following steps: S1, the p-aminobenzoic acid, 3-mercapto propanol and deionized water are mixed and ultrasonic treated, freeze-dried to obtain composite particles; S2, the composite particles and ethanol aqueous solution are mixed, the composite monomer is added for constant temperature stirring, the supernatant is removed after centrifugation, washed, vacuum dried to obtain the intermediate; The composite monomer is composed of acrolein and pyridine formaldehyde in a mass ratio of 1.8-2.1:2.6-3.0; S3, the intermediate is placed in the inorganic salt solution and stirred, and then filtered and vacuum dried to obtain the antibacterial agent; The inorganic salt solution is obtained by mixing metal salt and deionized water; The metal salt is one or more of silver nitrate, copper nitrate, copper chloride and silver chloride.

2. The transfer ink according to claim 1, wherein: In the preparation of the modified acrylic resin, the heating and warming is heated to 60-65 DEG C; The constant temperature stirring is stirred at 65-72 DEG C for 2.0-3.0 h; The cooling is cooled to 40-45 DEG C; The pH value is adjusted to 7.

5.

3. The transfer ink according to claim 1, wherein: The mass ratio of the acrylic acid, methyl methacrylate, hydroxyethyl acrylate, fumed silica, sodium dodecyl sulfate, initiator, deionized water, antibacterial agent, glycidyl methacrylate and anhydrous ethanol is 20-21:34-40:3.8-4.2:2-3:0.5-0.8:0.8-1.0:45-50:1.2-1.5:4-6:10-13.

4. The transfer ink according to claim 1, wherein: The surfactant is obtained by mixing alkyne glycol polyoxyethylene ether and dimethyl octyne glycol in a mass ratio of 1.2-1.5:4; The lubricant is obtained by mixing sodium methacrylate and sodium lignosulfonate in a mass ratio of 1.0-1.5:9-10; The other auxiliary is obtained by mixing propylene glycol, glycerol and triethanolamine in a mass ratio of 28-30:11-13:0.3-0.

5.

5. The transfer ink according to claim 1, wherein: In step S1, the ultrasonic treatment is ultrasonic treated at 1000-1200 W power for 10-15 min; The mass ratio of p-aminobenzoic acid, 3-mercapto propanol and deionized water is 8-9:1.5-1.8:30-40.

6. The transfer ink according to claim 1, wherein: In step S2, the constant temperature stirring is stirred at 45-52 DEG C for 6-8 h; The washing is washed with anhydrous ethanol for 3 times; The vacuum drying is vacuum dried at 60-70 DEG C until constant weight; The mass ratio of the composite particles, ethanol aqueous solution and composite monomer is 10-13:140-150:13.5-15.

0.

7. The transfer ink according to claim 1, wherein: In step S3, the stirring is performed at a speed of 500-800 rpm for 30-45 min; the standing time is 2-3 h; the vacuum drying is performed at a temperature of 70-80 ℃ until a constant weight is obtained; the mass ratio of the intermediate and the inorganic salt solution is 12-14:40-50; and the inorganic salt solution is prepared by mixing a metal salt and deionized water at a mass ratio of 1.0-1.3:25-30.

8. A method for producing the transfer ink according to any one of claims 1 to 7, characterized by, The preparation method comprises the following steps: mixing the dye, the lubricant, 1 / 3 of the other additives and 1 / 3 of deionized water, and stirring at a speed of 500-800 rpm for 30-40 min; then adding the modified acrylic resin, the surfactant, the remaining other additives and the remaining deionized water, and stirring at a speed of 600-900 rpm for 45-60 min to obtain the transfer ink.

9. Use of a transfer ink according to any one of claims 1 to 7, characterized in that: The application is that the transfer ink can be used for transfer printing processing on a printing substrate or a printing layer formed on the surface of a printing substrate, and the printing substrate is any one of textiles, ceramics and metals.

Images