Quick-drying water-based ink and preparation method thereof

Abstract

The invention discloses quick-dry water-based ink and a preparation method thereof, and relates to the technical field of ink. The preparation method comprises the following steps: firstly, enabling 4, 6-bis (allyloxy)-n-butyl-1, 3, 5-thiazine-2-amine and vinyl sulfonamide to participate in a polymerization reaction of acrylic acid and butyl acrylate, and preparing 4, 6-bis (allyloxy)-n-butyl-1, 3, 5-thiazine-2-amine and vinyl sulfonamide through a two-step emulsion polymerization method; the core-shell structure modified polyester emulsion with 2, 5-thiazine-2-amine and vinyl sulfonamide as soft shells and acrylic acid and butyl acrylate as hard cores improves the wear resistance and durability of the ink. Then allyl polyether reacts with 2-(p-chlorphenyl) ethylene oxide, so that the drying time is shortened, and the wear resistance of the ink is improved; then through addition reaction of reactants, bis (2-ethoxyl) dimethyl ammonium chloride and hydrogen-containing silicone oil, the epoxy-amino-polyether combined modified silicone oil flatting agent is formed, the flatting agent has hydrophilicity and hydrophobicity, the drying speed is increased, and the wear-resistant effect is improved.

Description

Technical Field

[0001] The invention relates to the technical field of inks, in particular to a quick-drying water-based ink and a preparation method thereof. Background Art

[0002] Traditional quick-drying inks are mainly composed of organic solvents, resins, pigments, and fillers, but organic solvents may be harmful to human health. There are also potential safety hazards such as volatile pollution, flammability, and explosion, so it is necessary to seek environmentally friendly alternatives. Water-based, non-volatile, and low-volatile environmentally friendly organic solvents are gradually becoming a more ideal choice. At present, water-based acrylic resins are widely used as water-based ink binders. Although they have good gloss, adhesion, film-forming properties, and printability, the surfactants or hydrophilic groups introduced into the water-based system can easily make the printed products less resistant to water, steam, and stains. In particular, poor water resistance may cause the ink to fall off and spread when it comes into contact with water. Therefore, the modification of water-based acrylic resins is mainly aimed at improving their adhesion and water resistance.

[0003] Meanwhile, antibacterial inks on the market are mainly achieved by adding antibacterial agents, while durable inks are improved by optimizing ink formulas and production processes to improve the weather resistance and adhesion of inks. However, these inks often have certain limitations, such as antibacterial agents may affect other properties of inks, the cost of high-temperature resistant resins and pigments is high, it is difficult to optimize ink formulas and production processes, and the existing technology only achieves the single antibacterial, heat-resistant and durable properties of inks to a certain extent. Therefore, it is urgent to develop a new type of antibacterial, durable, quick-drying water-based ink to solve the problems of the existing technology. Summary of the invention

[0004] The object of the present invention is to provide a quick-drying water-based ink and a preparation method thereof, so as to solve the problems existing in the prior art.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a quick-drying water-based ink, which mainly comprises, by weight, 30 to 40 parts of modified polyester emulsion, 1.4 to 3.6 parts of modified silicone oil leveling agent, 0.6 to 1.4 parts of film-forming aid, 2 to 4 parts of wax slurry, 10 to 14 parts of pigment, 20 to 26 parts of ethanol, and 36 to 44 parts of deionized water.

[0006] Furthermore, the modified polyester emulsion is prepared by a two-step emulsion polymerization method through which 4,6-bis(allyloxy)-n-butyl-1,3,5-thiazin-2-amine and ethylene sulfonamide participate in the polymerization reaction of acrylic acid and butyl acrylate to form a core-shell structure.

[0007] Furthermore, the core-shell structure has 4,6-bis(allyloxy)-n-butyl-1,3,5-thiazin-2-amine and vinylsulfonamide as the soft shell, and acrylic acid and butyl acrylate as the hard core.

[0008] Furthermore, the modified silicone oil leveling agent is prepared by reacting allyl polyether with 2-(p-chlorophenyl)ethylene oxide to form a composite polyether, which is then reacted with bis(2-hydroxyethyl)dimethylammonium chloride and hydrogen-containing silicone oil.

[0009] Furthermore, a method for preparing a quick-drying water-based ink comprises the following preparation steps:

[0010] (1) 1.2-3.4 parts of Gemini emulsifier HL-03 and 84-136 parts of deionized water are mixed uniformly, 5-9 parts of acrylic acid and 14-26 parts of acrylic acid ester are added, stirred at 800 rpm for 10-20 min, the rotation speed is adjusted to 200 rpm, the temperature is raised to 80-90° C., 3-7 parts of initiator are added dropwise, the reaction is carried out for 1-2 h, then 21-35 parts of 4,6-bis(allyloxy)-n-butyl-1,3,5-thiazine-2-amine and 18-30 parts of ethylene sulfonamide are added, 6-10 parts of initiator are added, the reaction is continued for 2-4 h, the solution is cooled to 25° C., and the pH of the solution is adjusted to 7-8 with a 2 mol / L sodium hydroxide aqueous solution to obtain a modified polyester emulsion;

[0011] (2) 8 to 12 parts of allyl polyether are vacuum degassed at 70° C. and a vacuum degree of -0.06 MPa for 10 to 20 min, 0.4 to 0.6 parts of stannous chloride are added under nitrogen protection, 7 to 11 parts of 2-(p-chlorophenyl)ethylene oxide are added dropwise, and the mixture is reacted at 70° C. and 160 rpm for 3 to 5 h, 75 to 115 parts of toluene are added, the temperature is lowered to 40° C., 16 to 22 parts of a 30% wt aqueous sodium hydroxide solution are added, stirring is continued for 2 to 4 h, 150 to 230 parts of deionized water are added, extraction is performed twice, the organic phase is taken, the pH is adjusted to 6 to 7 with glacial acetic acid, and the mixture is concentrated at 35° C. and a vacuum degree of -0.08 MPa for 3 to 5 h to obtain a composite polyether;

[0012] (3) 12 to 18 parts of the composite polyether and 11 to 17 parts of the hydrogenated silicone oil are mixed uniformly, 1 to 3 parts of chloroplatinic acid aqueous solution are added under stirring at 55 to 65° C. and 170 rpm, the temperature is raised to 90 to 100° C., the reaction is carried out for 1 to 3 hours, 10 to 16 parts of bis(2-hydroxyethyl)dimethylammonium chloride are added, the reaction is carried out for 2 to 4 hours, and the mixture is concentrated at 35° C. and a vacuum degree of -0.08 MPa for 3 to 5 hours to obtain a modified silicone oil leveling agent;

[0013] (4) 30 to 40 parts of modified polyester emulsion, 1.4 to 3.6 parts of modified silicone oil leveling agent, 0.6 to 1.4 parts of film-forming aid, 2 to 4 parts of wax slurry, 10 to 14 parts of pigment, 20 to 26 parts of ethanol, and 36 to 44 parts of deionized water are mixed uniformly to prepare a quick-drying water-based ink.

[0014] Furthermore, the preparation step of the initiator in step (1) is as follows: 0.3 parts of ammonium persulfate, 0.4 parts of sodium bicarbonate, and 10 parts of deionized water are uniformly mixed to obtain the initiator.

[0015] Furthermore, the dripping rate in step (2) is 0.5 drops / s.

[0016] Furthermore, the content of chloroplatinic acid in the chloroplatinic acid aqueous solution in step (3) is 0.2 wt %.

[0017] Furthermore, the hydrogen-containing silicone oil in step (3) is any one of 202 high hydrogen-containing silicone oil, WS61M high hydrogen-containing silicone oil, and KF99 high hydrogen-containing silicone oil.

[0018] Furthermore, the film-forming aid model in step (4) is Dynol960; the wax slurry model is AQUACER513.

[0019] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0020] The invention achieves the effects of quick drying, wear resistance, high temperature resistance and antibacterial by mixing the modified polyester emulsion with the modified silicone oil leveling agent.

[0021] Firstly, 4,6-bis(allyloxy)-n-butyl-1,3,5-thiazin-2-amine and ethylene sulfonamide were used to participate in the polymerization reaction of acrylic acid and butyl acrylate, and a core-shell structure modified polyester emulsion with 4,6-bis(allyloxy)-n-butyl-1,3,5-thiazin-2-amine and ethylene sulfonamide as soft shell and acrylic acid and butyl acrylate as hard core was prepared by a two-step emulsion polymerization method. The dense molecular structure makes it more difficult for surface water or solvent to penetrate into the interface between ink and substrate, slowing down the initial adhesion. The decrease in adhesion significantly improves the wear resistance and durability of the ink; the thiazine group introduced by 4,6-bis(allyloxy)-n-butyl-1,3,5-thiazin-2-amine has a lactam unit on the heterocyclic ring in the molecule, which is easy to form hydrogen bonds with other molecules, thereby improving the structural stability and achieving a wear-resistant effect; combined with the sulfonamide group, it improves the compatibility of the ink and the substrate, improves the wettability of the ink during the printing process, makes the ink more easily adhere to the surface of the substrate, and thus improves the drying speed and wear resistance of the ink.

[0022] Secondly, the modified silicone oil leveling agent uses the hydroxyl group of allyl polyether to react with the epoxy group in 2-(p-chlorophenyl) ethylene oxide to introduce phenyl, which improves thermal stability, reduces the surface tension of ink, improves the ability to resist shrinkage, and increases the slipperiness of the ink film, thereby improving the fluidity of the ink, making it easier for the ink to penetrate into the fiber gaps and speeding up the drying time. At the same time, the polyether chain segment can improve the hydrophilicity and antistatic properties of the silicone oil, and is tightly and firmly combined with the amino, hydroxyl and other groups in the fiber in the form of chemical bonds, significantly improving the wear resistance of the ink; then the reactants, diisocyanate, and hydroxyl groups are reacted to form a hydroxyl group in the fiber, and the hydroxyl group is ... (2-Hydroxyethyl) dimethyl ammonium chloride and hydrogen-containing silicone oil undergo addition reaction to form an epoxy-amino-polyether jointly modified silicone oil leveling agent, which has both hydrophilicity and hydrophobicity, improves the wettability to the material and accelerates the drying speed; the chloride ions introduced by bis(2-hydroxyethyl) dimethyl ammonium chloride can form ionic bonds with the cations in the ink molecules, enhance the binding force with the fibers, further improve the adhesion, and thus improve the wear resistance. On this basis, the ammonium group can destroy the bacterial cell wall and cell membrane, thereby killing the bacteria and achieving an antibacterial effect. DETAILED DESCRIPTION

[0023] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0024] In order to more clearly illustrate the method provided by the present invention, the following examples are used to describe in detail the various index testing methods of the quick-drying water-based ink prepared in the following examples are as follows:

[0025] Adhesion fastness: Take the same weight of the embodiment and the comparative example and evenly coat them on the test piece. After curing, test according to GB / T13217.7.

[0026] Initial drying property: Take the same weight of the embodiment and the comparative example and test them according to GB / T 13217.5.

[0027] Viscosity: Take the same weight of the embodiment and the comparative example and test them according to GB / T 13217.4.

[0028] Antibacterial activity value: Take the same weight of the embodiment and the comparative example and evenly coat them on the test piece. After curing, test is performed according to Japanese Industrial Standard JIS Z 2801 to detect the antibacterial activity value of the ink against Staphylococcus aureus.

[0029] Example 1

[0030] (1) 0.3 parts of ammonium persulfate, 0.4 parts of sodium bicarbonate, and 10 parts of deionized water were mixed uniformly to prepare an initiator;

[0031] (2) 1.2 parts of Gemini emulsifier HL-03 and 84 parts of deionized water were mixed evenly, 5 parts of acrylic acid and 14 parts of acrylic ester were added, and the mixture was stirred at 800 rpm for 10 min. The rotation speed was adjusted to 200 rpm, and the temperature was raised to 80° C. 3 parts of initiator were added dropwise at a rate of 0.5 drops / s, and the mixture was reacted for 1 h. Subsequently, 21 parts of 4,6-bis(allyloxy)-n-butyl-1,3,5-thiazine-2-amine and 18 parts of ethylenesulfonamide were added, and 6 parts of initiator were added. The mixture was reacted for 2 h, and the mixture was cooled to 25° C. The pH of the solution was adjusted to 7 with a 2 mol / L sodium hydroxide aqueous solution to obtain a modified polyester emulsion;

[0032] (3) 8 parts of allyl polyether were vacuum degassed at 70° C. and vacuum degree of -0.06 MPa for 10 min, 0.4 parts of stannous chloride were added under nitrogen protection, 7 parts of 2-(p-chlorophenyl)ethylene oxide were added dropwise, and the mixture was stirred at 70° C. and 160 rpm for 3 h, 75 parts of toluene were added, the temperature was lowered to 40° C., 16 parts of 30% wt sodium hydroxide aqueous solution were added, stirring was continued for 2 h, 150 parts of deionized water were added, extraction was performed twice, the organic phase was taken, the pH was adjusted to 6 with glacial acetic acid, and the mixture was concentrated at 35° C. and vacuum degree of -0.08 MPa for 3 h to obtain a composite polyether;

[0033] (4) 12 parts of the composite polyether and 11 parts of 202 high hydrogen silicone oil were mixed evenly, and 1 part of a 0.2 wt% chloroplatinic acid aqueous solution was added under stirring at 55° C. and 170 rpm, and the temperature was raised to 90° C. and reacted for 1 h. 10 parts of bis(2-hydroxyethyl)dimethylammonium chloride were added and reacted for 2 h. The mixture was concentrated at 35° C. and a vacuum degree of -0.08 MPa for 3 h to obtain a modified silicone oil leveling agent;

[0034] (5) 30 parts of modified polyester emulsion, 1.4 parts of modified silicone oil leveling agent, 0.6 parts of Dynol960 film-forming aid, 2 parts of AQUACER513 wax paste, 10 parts of pigment, 20 parts of ethanol, and 36 parts of deionized water were mixed evenly to prepare a quick-drying water-based ink.

[0035] Example 2

[0036] (1) 0.3 parts of ammonium persulfate, 0.4 parts of sodium bicarbonate, and 10 parts of deionized water were mixed uniformly to prepare an initiator;

[0037] (2) 2.3 parts of Gemini emulsifier HL-03 and 110 parts of deionized water were mixed evenly, 7 parts of acrylic acid and 20 parts of acrylic ester were added, and the mixture was stirred at 800 rpm for 15 min. The rotation speed was adjusted to 200 rpm, and the temperature was raised to 85° C. 5 parts of initiator were added dropwise at a rate of 0.5 drops / s, and the mixture was reacted for 1.5 h. Subsequently, 28 parts of 4,6-bis(allyloxy)-n-butyl-1,3,5-thiazine-2-amine and 24 parts of ethylenesulfonamide were added, and 8 parts of initiator were added. The mixture was reacted for 3 h, and the mixture was cooled to 25° C. The pH of the solution was adjusted to 7.5 with a 2 mol / L sodium hydroxide aqueous solution to obtain a modified polyester emulsion;

[0038] (3) 10 parts of allyl polyether were vacuum degassed at 70° C. and vacuum degree of -0.06 MPa for 15 min, 0.5 parts of stannous chloride were added under nitrogen protection, 9 parts of 2-(p-chlorophenyl)ethylene oxide were added dropwise, and the mixture was stirred at 70° C. and 160 rpm for 4 h, 95 parts of toluene were added, the temperature was lowered to 40° C., 19 parts of 30% wt sodium hydroxide aqueous solution were added, stirring was continued for 3 h, 190 parts of deionized water were added, extraction was performed twice, the organic phase was taken, the pH was adjusted to 6.5 with glacial acetic acid, and concentrated at 35° C. and vacuum degree of -0.08 MPa for 4 h to obtain a composite polyether;

[0039] (4) 15 parts of the composite polyether and 14 parts of WS61M high hydrogen silicone oil were mixed evenly, and 2 parts of a 0.2 wt% chloroplatinic acid aqueous solution of chloroplatinic acid was added under stirring at 60° C. and 170 rpm, and the temperature was raised to 95° C. and reacted for 2 h, and 13 parts of bis(2-hydroxyethyl)dimethylammonium chloride were added and reacted for 3 h, and concentrated at 35° C. and vacuum degree of -0.08 MPa for 4 h to obtain a modified silicone oil leveling agent;

[0040] (5) 35 parts of modified polyester emulsion, 2.5 parts of modified silicone oil leveling agent, 1.0 part of Dynol960 film-forming aid, 3 parts of AQUACER513 wax paste, 12 parts of pigment, 23 parts of ethanol, and 40 parts of deionized water were mixed evenly to prepare a quick-drying water-based ink.

[0041] Example 3

[0042] (1) 0.3 parts of ammonium persulfate, 0.4 parts of sodium bicarbonate, and 10 parts of deionized water were mixed uniformly to prepare an initiator;

[0043] (2) 3.4 parts of Gemini emulsifier HL-03 and 136 parts of deionized water were mixed evenly, 9 parts of acrylic acid and 26 parts of acrylic ester were added, and the mixture was stirred at 800 rpm for 20 min. The rotation speed was adjusted to 200 rpm, and the temperature was raised to 90° C., and 7 parts of initiator were added dropwise at a rate of 0.5 drops / s, and the mixture was reacted for 2 h. Subsequently, 35 parts of 4,6-bis(allyloxy)-n-butyl-1,3,5-thiazine-2-amine and 30 parts of ethylenesulfonamide were added, and 10 parts of initiator were added. The mixture was reacted for 4 h, and the mixture was cooled to 25° C. The pH of the solution was adjusted to 8 with a 2 mol / L sodium hydroxide aqueous solution to obtain a modified polyester emulsion;

[0044] (3) 12 parts of allyl polyether were vacuum degassed at 70° C. and vacuum degree of -0.06 MPa for 20 min, 0.6 parts of stannous chloride were added under nitrogen protection, 11 parts of 2-(p-chlorophenyl)ethylene oxide were added dropwise, and the mixture was stirred at 70° C. and 160 rpm for 5 h, 115 parts of toluene were added, the temperature was lowered to 40° C., 22 parts of 30% wt sodium hydroxide aqueous solution were added, stirring was continued for 4 h, 230 parts of deionized water were added, extraction was performed twice, the organic phase was taken, the pH was adjusted to 7 with glacial acetic acid, and the mixture was concentrated at 35° C. and vacuum degree of -0.08 MPa for 5 h to obtain a composite polyether;

[0045] (4) 18 parts of the composite polyether and 17 parts of KF99 high hydrogen silicone oil were mixed evenly, 3 parts of a 0.2 wt% chloroplatinic acid aqueous solution of chloroplatinic acid was added under stirring at 65° C. and 170 rpm, the temperature was raised to 100° C., the reaction was continued for 3 h, 16 parts of bis(2-hydroxyethyl)dimethylammonium chloride were added, the reaction was continued for 4 h, and the mixture was concentrated at 35° C. and a vacuum degree of -0.08 MPa for 5 h to obtain a modified silicone oil leveling agent;

[0046] (5) 40 parts of modified polyester emulsion, 3.6 parts of modified silicone oil leveling agent, 1.4 parts of Dynol960 film-forming aid, 4 parts of AQUACER513 wax paste, 14 parts of pigment, 26 parts of ethanol, and 44 parts of deionized water were mixed uniformly to prepare a quick-drying water-based ink.

[0047] Comparative Example 1

[0048] The difference between Comparative Example 1 and Example 2 is that step (2) is different. Step (2) is changed to: 2.3 parts of Gemini emulsifier HL-03 and 110 parts of deionized water are mixed evenly, 7 parts of acrylic acid and 20 parts of acrylic acid ester are added, stirred at 800 rpm for 15 min, the rotation speed is adjusted to 200 rpm, the temperature is raised to 85° C., 5 parts of initiator are added dropwise at a rate of 0.5 drops / s, the reaction is continued for 1.5 hours, then 52 parts of ethylene sulfonamide are added, 8 parts of initiator are added, the reaction is continued for 3 hours, the solution is cooled to 25° C., and the pH of the solution is adjusted to 7.5 with a sodium hydroxide aqueous solution with a concentration of 2 mol / L to obtain a modified polyester emulsion. The remaining steps are the same as those of Example 2.

[0049] Comparative Example 2

[0050] The difference between Comparative Example 2 and Example 2 is that step (2) is different. Step (2) is changed to: 2.3 parts of Gemini emulsifier HL-03 and 110 parts of deionized water are mixed evenly, 7 parts of acrylic acid and 20 parts of acrylic acid ester are added, stirred at 800 rpm for 15 min, the rotation speed is adjusted to 200 rpm, the temperature is raised to 85° C., 5 parts of initiator are added dropwise at a rate of 0.5 drops / s, the reaction is carried out for 1.5 hours, and then 52 parts of 4,6-bis(allyloxy)-n-butyl-1,3,5-thiazin-2-amine are added, 8 parts of initiator are added, the reaction is continued for 3 hours, the solution is cooled to 25° C., and the pH of the solution is adjusted to 7.5 with a sodium hydroxide aqueous solution with a concentration of 2 mol / L to obtain a modified polyester emulsion. The remaining steps are the same as those of Example 2.

[0051] Comparative Example 3

[0052] The difference between Comparative Example 3 and Example 2 is that step (2) is different. Step (2) is changed to: 2.3 parts of Gemini emulsifier HL-03 and 110 parts of deionized water are mixed evenly, 7 parts of acrylic acid, 20 parts of acrylic acid ester, 28 parts of 4,6-bis(allyloxy)-n-butyl-1,3,5-thiazin-2-amine, and 24 parts of vinyl sulfonamide are added, stirred at 800 rpm for 15 min, the rotation speed is adjusted to 200 rpm, the temperature is raised to 85° C., 13 parts of initiator are added dropwise at a rate of 0.5 drops / s, the reaction is carried out for 4.5 hours, the solution is cooled to 25° C., and the pH of the solution is adjusted to 7.5 with a sodium hydroxide aqueous solution with a concentration of 2 mol / L to obtain a modified polyester emulsion. The remaining steps are the same as those of Example 2.

[0053] Comparative Example 4

[0054] The difference between Comparative Example 4 and Example 2 is that there is no step (3), and step (4) is changed to: 15 parts of allyl polyether and 14 parts of WS61M high hydrogen silicone oil are mixed uniformly, 2 parts of 0.2wt% chloroplatinic acid aqueous solution of chloroplatinic acid content are added under stirring at 60°C and 170rpm, the temperature is raised to 95°C, the reaction is carried out for 2h, 13 parts of bis(2-hydroxyethyl)dimethylammonium chloride are added, the reaction is carried out for 3h, and the modified silicone oil leveling agent is prepared at 35°C and vacuum degree of -0.08MPa for 4h. The remaining steps are the same as those in Example 2.

[0055] Comparative Example 5

[0056] The difference between Comparative Example 5 and Example 2 is that step (4) is different. Step (4) is changed to: 15 parts of the composite polyether and 14 parts of WS61M high hydrogen silicone oil are mixed uniformly, 2 parts of 0.2wt% chloroplatinic acid aqueous solution of chloroplatinic acid content are added under stirring at 60°C and 170rpm, the temperature is raised to 95°C, the reaction is carried out for 2h, and the modified silicone oil leveling agent is prepared at 35°C and vacuum degree -0.08MPa for 4h. The remaining steps are the same as those in Example 2.

[0057] Comparative Example 6

[0058] The difference between Comparative Example 6 and Example 2 is that step (4) is different. Step (4) is changed to: 14 parts of WS61M high hydrogen silicone oil are placed in a container, 2 parts of 0.2 wt% chloroplatinic acid aqueous solution are added under stirring at 60° C. and 170 rpm, the temperature is raised to 95° C., 13 parts of bis(2-hydroxyethyl)dimethylammonium chloride are added, the reaction is carried out for 3 hours, and the modified silicone oil leveling agent is obtained by concentrating at 35° C. and vacuum degree of -0.08 MPa for 4 hours. The remaining steps are the same as those in Example 2.

[0059] Effect example

[0060] Table 1 below shows the performance analysis results of the quick-drying water-based inks of Examples 1 to 3 of the present invention and Comparative Examples 1 to 6.

[0061] Table 1

[0062]

[0063]

[0064] From the comparison of the experimental data of Examples 1, 2, and 3 with Comparative Example 1, it can be found that the thiazine group introduced by using 4,6-bis(allyloxy)-n-butyl-1,3,5-thiazin-2-amine has a lactam unit on the heterocyclic ring in the molecule, which is easy to form hydrogen bonds with other molecules, improve the structural stability, and achieve a wear-resistant effect; from the comparison of the experimental data of Examples 1, 2, and 3 with Comparative Example 2, it can be found that the sulfonamide group is introduced by vinylsulfonamide, which improves the compatibility of the ink with the substrate and improves the wetting of the ink during the printing process. The ink is more easily attached to the surface of the substrate, thereby improving the drying speed and wear resistance of the ink. From the comparison of the experimental data of Examples 1, 2, and 3 with Comparative Example 3, it can be found that the core-shell structure modified polyester emulsion with 4,6-bis(allyloxy)-n-butyl-1,3,5-thiazin-2-amine and vinylsulfonamide as the soft shell and acrylic acid and butyl acrylate as the hard core is prepared by two-step emulsion polymerization. The dense molecular structure makes it more difficult for surface water or solvent to penetrate into the interface between the ink and the substrate, slowing down the decline in initial adhesion. Significantly improve the wear resistance and durability of ink; from the comparison of the experimental data of Examples 1, 2, and 3 with Comparative Example 4, it can be found that by introducing phenyl groups through 2-(p-chlorophenyl)ethylene oxide, the thermal stability is improved, the surface tension of the ink is reduced, the anti-shrinkage ability is improved, and the slipperiness of the ink film is increased, thereby improving the fluidity of the ink, making it easier for the ink to penetrate into the fiber gaps and accelerating the drying time; from the comparison of the experimental data of Examples 1, 2, and 3 with Comparative Example 5, it can be found that the chloride ions introduced by bis(2-hydroxyethyl)dimethylammonium chloride can form ionic bonds with the cations in the ink molecules, enhance the binding force with the fibers, further improve the adhesion, and then improve the wear resistance. On this basis, the ammonium group can destroy the bacterial cell wall and cell membrane, thereby killing the bacteria and achieving an antibacterial effect; from the comparison of the experimental data of Examples 1, 2, and 3 with Comparative Example 6, it can be found that the polyether segment can improve the hydrophilicity and antistatic properties of silicone oil, and is tightly and firmly combined with amino, hydroxyl and other groups in the fiber in the form of chemical bonds, thereby significantly improving the wear resistance of the ink.

[0065] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations within the meaning and scope of the equivalent elements of the claims be included in the invention. Any marking in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A quick-drying water-based ink, characterized in that: The quick-drying water-based ink mainly includes, by weight, 30 to 40 parts of modified polyester emulsion, 1.4 to 3.6 parts of modified silicone oil leveling agent, 0.6 to 1.4 parts of film-forming aid, 2 to 4 parts of wax slurry, 10 to 14 parts of pigment, 20 to 26 parts of ethanol, and 36 to 44 parts of deionized water.

2. A quick-drying water-based ink according to claim 1, characterized in that: The modified polyester emulsion is prepared by polymerization of acrylic acid and butyl acrylate by 4,6-bis(allyloxy)-n-butyl-1,3,5-thiazine-2-amine and vinylsulfonamide, and forming a core-shell structure through a two-step emulsion polymerization method.

3. A quick-drying water-based ink according to claim 2, characterized in that: The core-shell structure has 4,6-bis(allyloxy)-n-butyl-1,3,5-thiazin-2-amine and vinylsulfonamide as a soft shell and acrylic acid and butyl acrylate as a hard core.

4. A quick-drying water-based ink according to claim 1, characterized in that: The modified silicone oil leveling agent is prepared by reacting allyl polyether with 2-(p-chlorophenyl)ethylene oxide to form a composite polyether, and then reacting the composite polyether with bis(2-hydroxyethyl)dimethylammonium chloride and hydrogen-containing silicone oil.

5. A method for preparing a quick-drying water-based ink, characterized in that: The method comprises the following preparation steps: (1) 1.2-3.4 parts of Gemini emulsifier HL-03 and 84-136 parts of deionized water are mixed uniformly, 5-9 parts of acrylic acid and 14-26 parts of acrylic acid ester are added, stirred at 800 rpm for 10-20 min, the rotation speed is adjusted to 200 rpm, the temperature is raised to 80-90° C., 3-7 parts of initiator are added dropwise, the reaction is carried out for 1-2 h, then 21-35 parts of 4,6-bis(allyloxy)-n-butyl-1,3,5-thiazine-2-amine and 18-30 parts of ethylene sulfonamide are added, 6-10 parts of initiator are added, the reaction is continued for 2-4 h, the solution is cooled to 25° C., and the pH of the solution is adjusted to 7-8 with a 2 mol / L sodium hydroxide aqueous solution to obtain a modified polyester emulsion; (2) 8 to 12 parts of allyl polyether are vacuum degassed at 70° C. and a vacuum degree of -0.06 MPa for 10 to 20 min, 0.4 to 0.6 parts of stannous chloride are added under nitrogen protection, 7 to 11 parts of 2-(p-chlorophenyl)ethylene oxide are added dropwise, and the mixture is reacted at 70° C. and 160 rpm for 3 to 5 h, 75 to 115 parts of toluene are added, the temperature is lowered to 40° C., 16 to 22 parts of a 30% wt aqueous sodium hydroxide solution are added, stirring is continued for 2 to 4 h, 150 to 230 parts of deionized water are added, extraction is performed twice, the organic phase is taken, the pH is adjusted to 6 to 7 with glacial acetic acid, and the mixture is concentrated at 35° C. and a vacuum degree of -0.08 MPa for 3 to 5 h to obtain a composite polyether; (3) 12 to 18 parts of the composite polyether and 11 to 17 parts of the hydrogenated silicone oil are mixed uniformly, 1 to 3 parts of chloroplatinic acid aqueous solution are added under stirring at 55 to 65° C. and 170 rpm, the temperature is raised to 90 to 100° C., the reaction is carried out for 1 to 3 hours, 10 to 16 parts of bis(2-hydroxyethyl)dimethylammonium chloride are added, the reaction is carried out for 2 to 4 hours, and the mixture is concentrated at 35° C. and a vacuum degree of -0.08 MPa for 3 to 5 hours to obtain a modified silicone oil leveling agent; (4) 30 to 40 parts of modified polyester emulsion, 1.4 to 3.6 parts of modified silicone oil leveling agent, 0.6 to 1.4 parts of film-forming aid, 2 to 4 parts of wax slurry, 10 to 14 parts of pigment, 20 to 26 parts of ethanol, and 36 to 44 parts of deionized water are mixed uniformly to prepare a quick-drying water-based ink.

6. The method for preparing a quick-drying water-based ink according to claim 5, characterized in that: The preparation step of the initiator in step (1) is as follows: 0.3 parts of ammonium persulfate, 0.4 parts of sodium bicarbonate and 10 parts of deionized water are mixed evenly to obtain the initiator.

7. The method for preparing a quick-drying water-based ink according to claim 5, characterized in that: The dripping rate in step (2) is 0.5 drops / s.

8. The method for preparing a quick-drying water-based ink according to claim 5, characterized in that: The content of chloroplatinic acid in the chloroplatinic acid aqueous solution in step (3) is 0.2wt%.

9. The method for preparing a quick-drying water-based ink according to claim 5, characterized in that: The hydrogen-containing silicone oil in step (3) is any one of 202 high hydrogen-containing silicone oil, WS61M high hydrogen-containing silicone oil, and KF99 high hydrogen-containing silicone oil.

10. The method for preparing a quick-drying water-based ink according to claim 5, characterized in that: The film-forming aid model of step (4) is Dynol960; the wax slurry model is AQUACER513.

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