An antibacterial LED-UV curing rotary red ink

Abstract

The present invention relates to the technical field of printing inks, and in particular to an antibacterial LED-UV curing rotary red ink. The antibacterial LED-UV curing rotary red ink is composed of the following raw materials in percentage by weight: 20-25% of an organic monomer, 8-10% of a photoinitiator, 0.3-0.8% of tris(N-nitroso-N-phenylhydroxylamine)aluminum salt, 1-2% of polyethylene wax, 5-8% of a functional additive, 1.5-2.5% of a dispersant, 12-15% of a red pigment, 0.6-1.2% of a drying agent, and the balance being a binder. The binder is formed by compounding vinyl ester resin and lauryl acrylate in a mass ratio of 1:0.8-1.0. The rotary red ink provided by the present invention has not only excellent antibacterial properties but also excellent wear resistance, effectively ensuring its quality and grade while also extending its service life to a certain extent.

Description

Technical Field

[0001] The invention relates to the technical field of printing inks, in particular to an antibacterial LED-UV curing rotary red ink. Background Art

[0002] Offset printing is currently the most prevalent printing method. Its characteristic is the use of fountain solution during the printing process, so offset inks must have excellent water resistance. In the past, the binder for offset inks was primarily vegetable oils such as linseed oil. These have now been largely replaced by various resins with better performance, such as rosin-modified phenolic resins, alkyd resins, and polyurethane alkyd resins.

[0003] An ink composition is disclosed in the patent document with application number "CN202310078731.7". The ink composition includes a photovariable pigment and a binder, the binder includes a photosensitive resin, an acrylic monomer and a photoinitiator, wherein the surface of the photovariable pigment is lipophilically treated with a treating agent, and the treating agent is set to make the oil absorption of the photovariable pigment 25g / 100g to 75g / 100g. Although the ink composition provided by this patent document has the advantages of good transfer rate, high printing stability and obvious angular color effect of the printed pattern, its own antibacterial properties are relatively poor and it is easy to breed bacteria, which affects its service life to a certain extent, and also affects its quality and quality. Therefore, the present invention provides an antibacterial LED-UV curing rotary red ink to solve the above-mentioned technical problems! Summary of the Invention

[0004] The object of the present invention is to provide an antibacterial LED-UV curing rotary red ink. The rotary red ink provided not only has excellent antibacterial properties, but also has excellent wear resistance, which effectively ensures its quality and grade while also extending its service life to a certain extent.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] An antibacterial LED-UV curable rotary red ink is composed of the following raw materials in percentage by weight: 20-25% organic monomer, 8-10% photoinitiator, 0.3-0.8% tris(N-nitroso-N-phenylhydroxylamine)aluminum salt, 1-2% polyethylene wax, 5-8% functional additive, 1.5-2.5% dispersant, 12-15% red pigment, 0.6-1.2% drier, and the balance being a binder; wherein the red pigment is selected from any one of Magenta 4B, Magenta 6B, Magenta 8B, and Lithol Red; and the dispersant is a polyester polyamide copolymer.

[0007] Furthermore, the preparation method of the functional additive comprises the following steps:

[0008] Step 1: Mix cyanuric chloride, a pretreated inorganic support, N,N-diethylethylamine and a mixed solvent in a mass ratio of 1.5-2.0:1:0.02-0.04:8-12, add 2,6-dimethyl-2,6-octadienal in an amount 0.1-0.2 times the mass of the pretreated inorganic support, mix and stir evenly, and then heat and stir at a temperature of 45-55° C. for 3-5 hours; after the reaction is completed, separate the product components into solids and liquids, and wash the obtained filter cake with anhydrous ethanol and deionized water for 3-5 times respectively; then vacuum dry, and store the obtained solid powder for standby use; wherein, the mixed solvent is prepared by mixing DMF and anhydrous ethanol in a volume ratio of 2-3:1.

[0009] Step 2: 1,3-benzenediol, solid powder, aluminum chloride and chlorobenzene are mixed and stirred uniformly in a mass ratio of 1.3-1.8:1:0.03-0.05:7-10, and the mixture is stirred and reacted at a temperature of 30-40° C. for 30-40 minutes, and then the reaction temperature is raised to 90-95° C., and the mixture is stirred and reacted for 5-8 hours, and then filtered. The filter cake is washed with anhydrous ethanol and deionized water for 3-5 times, respectively, and then vacuum-dried to obtain a functional additive.

[0010] Furthermore, the preparation method of the pretreated inorganic carrier is: adding a modifying liquid with a mass 5 to 10 times that of the inorganic carrier to a 0.01 to 0.03 g / mL inorganic carrier ethanol dispersion, and stirring and reacting at a temperature of 50 to 60°C for 2 to 4 hours; after the reaction is completed, the resulting product components are centrifuged, the filter cake is washed with anhydrous ethanol 3 to 5 times and then transferred to a vacuum drying device, and finally vacuum dried at a temperature of 50 to 60°C to obtain the pretreated inorganic carrier.

[0011] Furthermore, the preparation method of the inorganic carrier is as follows: zirconium oxychloride is added to an ethanol aqueous solution with a volume concentration of 60-70% at a solid-liquid ratio of 30-80 mg / mL, methyl cellulose with a mass of 1.5-2 times that of zirconium oxychloride and polystyrene microspheres with an average particle size of 5-10 μm with a mass of 0.3-0.4 times that of zirconium oxychloride are added, the pH is adjusted to 3.2-3.8, and the reaction is stirred at a temperature of 40-50°C for 50-80 minutes; after the reaction is completed, the pH is adjusted to 5.5-5.8, and after aging at room temperature for 20-25 hours, the resulting product components are centrifuged, dried and sintered at high temperature in sequence, and the final product is the inorganic carrier.

[0012] Furthermore, the preparation method of the modified liquid is: adding 3-aminopropyltrimethoxysilane to an ethanol aqueous solution with a volume concentration of 80-90%, mixing and stirring evenly to prepare a silane coupling agent aqueous solution with a concentration of 0.5-1.0 mol / L; then adjusting its pH to 3.5-3.8, and mixing and stirring at a rate of 200-500 r / min for 30-40 minutes at room temperature, and the obtained modified liquid after stirring is completed.

[0013] Furthermore, the temperature of the high-temperature sintering is set to 1100-1150° C., and the sintering time is set to 1-2 hours.

[0014] Furthermore, the connecting material is compounded by vinyl ester resin and lauryl acrylate in a mass ratio of 1:0.8 to 1.0.

[0015] Furthermore, the photoinitiator is selected from any one of 2,4,6-trimethylbenzoyldiphenylphosphine oxide, bis(2,4,6-trimethylbenzoyl)phenylphosphine oxide, and 3-methyl-4-phenylbenzophenone.

[0016] Furthermore, the organic monomer is selected from any one of 1,6-hexanediol diacrylate and trimethylolpropane triacrylate.

[0017] Furthermore, the drying agent is selected from any one of cobalt isooctanoate, zirconium isooctanoate, and calcium isooctanoate.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] In the present invention, zirconium oxychloride, methylcellulose, and polystyrene microspheres are used as raw materials to prepare spherical nano-zirconium dioxide with a porous structure, i.e., an inorganic substrate. The inorganic substrate is then placed in ethanol, and a modifying solution containing 3-aminopropyltrimethoxysilane is added to the ethanol dispersion. After heat preservation and stirring, the 3-aminopropyltrimethoxysilane chemically reacts with the active groups on the surface of the inorganic substrate, ultimately preparing a pretreated inorganic substrate. The resulting pretreated inorganic substrate is mixed with cyanuric chloride, N,N-diethylethylamine, and a mixed solvent, and 2,6-dimethyl-2,6-octadienal is added. Finally, 2,6-dimethyl-2,6-octadienal is successfully grafted onto the surface of the pretreated inorganic substrate through the mediation of 3-aminopropyltrimethoxysilane. The introduction of 2,6-dimethyl-2,6-octadienal effectively enhances the antibacterial properties of the resulting solid powder.

[0020] The resulting solid powder is then mixed with 1,3-benzenediol, aluminum chloride, and chlorobenzene. After heat preservation and stirring, the 1,3-benzenediol reacts chemically with cyanuric chloride bound to the surface of the solid powder and in its porous structure. Ultimately, the two react chemically, and the resulting reaction product effectively encapsulates the surface of the solid powder and synergizes with 2,6-dimethyl-2,6-octadienal, ultimately constructing a dense three-dimensional antibacterial encapsulation layer on the surface of the solid micropowder and within the porous structure, thereby producing a functional additive. The prepared functional additive, when used as a raw material for rotary red ink, can significantly enhance its antibacterial properties. Furthermore, because the inorganic substrate is a porous spherical nano-zirconium dioxide, its spherical structure can also enhance the wear resistance of the resulting red ink product to a certain extent, effectively ensuring its quality while also extending its service life. DETAILED DESCRIPTION

[0021] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example 1

[0022] An antibacterial LED-UV curing rotary red ink is composed of the following raw materials in percentage by weight: 20% 1,6-hexanediol diacrylate, 8% 2,4,6-(trimethylbenzoyl)diphenylphosphine oxide, 0.3% tris(N-nitroso-N-phenylhydroxylamine) aluminum salt, 1% polyethylene wax, 5% functional additives, 1.5% polyester polyamide copolymer, 12% lithol red, 0.6% cobalt isooctanoate, and the balance is a binder; the binder is formed by compounding vinyl ester resin and lauryl acrylate in a mass ratio of 1:0.8.

[0023] The preparation method of the functional additive comprises the following steps:

[0024] Step 1. Mix cyanuric chloride, a pretreated inorganic carrier, N,N-diethylethylamine and a mixed solvent in a mass ratio of 1.5:1:0.02:8, add 2,6-dimethyl-2,6-octadienal in an amount 0.1 times the mass of the pretreated inorganic carrier, mix and stir evenly, and then stir and react at a temperature of 45°C for 3 hours; after the reaction is completed, separate the product components into solids and liquids, and wash the obtained filter cake with anhydrous ethanol and deionized water three times each; then vacuum dry, and store the obtained solid powder for future use; wherein, the mixed solvent is prepared by mixing DMF and anhydrous ethanol in a volume ratio of 2:1.

[0025] Step 2: 1,3-benzenediol, solid powder, aluminum chloride and chlorobenzene are mixed and stirred in a mass ratio of 1.3:1:0.03:7, and the mixture is stirred and reacted at 30°C for 30 minutes, then the reaction temperature is raised to 90°C, and the mixture is stirred and reacted for 5 hours before filtering. The filter cake is washed three times with anhydrous ethanol and deionized water respectively, and then vacuum-dried to obtain a functional additive.

[0026] The preparation method of the pretreated inorganic carrier is as follows: add a modifying liquid with a mass 5 times that of the inorganic carrier to a 0.01 g / mL inorganic carrier ethanol dispersion, and stir and react at a temperature of 50°C for 2 hours; after the reaction is completed, the resulting product components are centrifuged, the filter cake is washed with anhydrous ethanol 3 times and then transferred to a vacuum drying device, and finally vacuum dried at a temperature of 50°C to obtain the pretreated inorganic carrier.

[0027] The preparation method of the inorganic carrier is as follows: zirconium oxychloride is added into an ethanol aqueous solution with a volume concentration of 60% at a solid-liquid ratio of 30 mg / mL, and methyl cellulose with a mass of 1.5 times that of zirconium oxychloride and polystyrene microspheres with an average particle size of 5 μm are added. After adjusting the pH to 3.2, the mixture is kept stirred at 40°C for 50 minutes; after the reaction is completed, the pH is adjusted to 5.5, and after aging at room temperature for 20 hours, the resulting product components are centrifuged, dried and sintered at high temperature in sequence, and the final product is the inorganic carrier; wherein the high-temperature sintering temperature is set to 1100°C, and the sintering time is set to 1 hour.

[0028] The preparation method of the modified liquid is as follows: 3-aminopropyltrimethoxysilane is added to an ethanol aqueous solution with a volume concentration of 80%, and the mixture is mixed and stirred evenly to prepare a silane coupling agent aqueous solution with a concentration of 0.5 mol / L; then the pH thereof is adjusted to 3.5, and the mixture is mixed and stirred at a rate of 200 r / min for 30 minutes at room temperature, and the obtained modified liquid after the stirring is completed is obtained. Example 2

[0029] An antibacterial LED-UV curing rotary red ink is composed of the following raw materials in percentage by weight: 20% trimethylolpropane triacrylate, 9% bis(2,4,6-trimethylbenzoyl)phenylphosphine oxide, 0.5% tris(N-nitroso-N-phenylhydroxylamine)aluminum salt, 1.5% polyethylene wax, 6% functional additives, 2.0% polyester polyamide copolymer, 14% lithol red, 1.0% zirconium isooctanoate, and the balance is a binder; the binder is compounded from vinyl ester resin and lauryl acrylate in a mass ratio of 1:0.9.

[0030] The preparation method of the functional additive comprises the following steps:

[0031] Step 1. Mix cyanuric chloride, a pretreated inorganic support, N,N-diethylethylamine and a mixed solvent in a mass ratio of 1.8:1:0.03:10, add 2,6-dimethyl-2,6-octadienal in an amount 0.15 times the mass of the pretreated inorganic support, mix and stir evenly, and then stir and react at a temperature of 50°C for 4 hours; after the reaction is completed, separate the product components into solids and liquids, and wash the obtained filter cake with anhydrous ethanol and deionized water 4 times each; then vacuum dry, and store the obtained solid powder for future use; wherein, the mixed solvent is prepared by mixing DMF and anhydrous ethanol in a volume ratio of 2:1.

[0032] Step 2: 1,3-benzenediol, solid powder, aluminum chloride and chlorobenzene are mixed and stirred in a mass ratio of 1.5:1:0.04:8, and the mixture is stirred and reacted at 35°C for 35 minutes, then the reaction temperature is raised to 90°C, and the mixture is stirred and reacted for 6 hours before filtering. The filter cake is washed four times with anhydrous ethanol and deionized water respectively, and then vacuum-dried to obtain a functional additive.

[0033] The preparation method of the pretreated inorganic carrier is as follows: add a modifying liquid with a mass 6 times that of the inorganic carrier to a 0.02 g / mL inorganic carrier ethanol dispersion, and stir and react at a temperature of 55°C for 3 hours; after the reaction is completed, the resulting product components are centrifuged, the filter cake is washed with anhydrous ethanol 4 times and then transferred to a vacuum drying device, and finally vacuum dried at a temperature of 55°C to obtain the pretreated inorganic carrier.

[0034] The preparation method of the inorganic carrier is as follows: zirconium oxychloride is added into an ethanol aqueous solution with a volume concentration of 65% at a solid-liquid ratio of 50 mg / mL, and methyl cellulose with a mass of 1.5 times that of zirconium oxychloride and polystyrene microspheres with an average particle size of 5 μm are added. After adjusting the pH to 3.5, the mixture is kept stirred at 45°C for 60 minutes. After the reaction is completed, the pH is adjusted to 5.6, and after aging at room temperature for 20 hours, the resulting product components are centrifuged, dried and sintered at high temperature in sequence, and the final product is the inorganic carrier. Among them, the high-temperature sintering temperature is set to 1150°C, and the sintering time is set to 2 hours.

[0035] The preparation method of the modified liquid is as follows: 3-aminopropyltrimethoxysilane is added to an ethanol aqueous solution with a volume concentration of 85%, and the mixture is mixed and stirred evenly to prepare a silane coupling agent aqueous solution with a concentration of 0.8 mol / L; then the pH thereof is adjusted to 3.6, and the mixture is mixed and stirred at a rate of 300 r / min for 35 minutes at room temperature. After the stirring is completed, the obtained solution is the modified liquid. Example 3

[0036] An antibacterial LED-UV curing rotary red ink is composed of the following raw materials in percentage by weight: 25% 1,6-hexanediol diacrylate, 10% 3-methyl-4-phenylbenzophenone, 0.8% tris(N-nitroso-N-phenylhydroxylamine)aluminum salt, 2% polyethylene wax, 8% functional additives, 2.5% polyester polyamide copolymer, 15% lithol red, 1.2% calcium isooctanoate, and the balance is a binder; wherein the binder is a compound of vinyl ester resin and lauryl acrylate of equal quality.

[0037] The preparation method of the functional additive comprises the following steps:

[0038] Step 1. Mix cyanuric chloride, a pretreated inorganic carrier, N,N-diethylethylamine and a mixed solvent in a mass ratio of 2.0:1:0.04:12, add 2,6-dimethyl-2,6-octadienal in an amount 0.2 times that of the pretreated inorganic carrier, mix and stir evenly, and then stir and react at a temperature of 55°C for 5 hours; after the reaction is completed, separate the product components into solids and liquids, and wash the obtained filter cake with anhydrous ethanol and deionized water 5 times each; then vacuum dry, and store the obtained solid powder for standby use; wherein, the mixed solvent is prepared by mixing DMF and anhydrous ethanol in a volume ratio of 3:1.

[0039] Step 2: 1,3-benzenediol, solid powder, aluminum chloride and chlorobenzene are mixed and stirred uniformly in a mass ratio of 1.8:1:0.05:10, and the mixture is stirred and reacted at 40°C for 40 minutes, then the reaction temperature is raised to 95°C, and the mixture is stirred and reacted for 8 hours before filtering. The filter cake is washed 5 times with anhydrous ethanol and deionized water respectively, and then vacuum-dried to obtain a functional additive.

[0040] The preparation method of the pretreated inorganic carrier is as follows: add a modifying liquid with a mass 10 times that of the inorganic carrier to a 0.03 g / mL inorganic carrier ethanol dispersion, and stir and react at a temperature of 60°C for 4 hours; after the reaction is completed, the resulting product components are centrifuged, the filter cake is washed with anhydrous ethanol 5 times and then transferred to a vacuum drying device, and finally vacuum dried at a temperature of 60°C to obtain the pretreated inorganic carrier.

[0041] The preparation method of the inorganic carrier is as follows: zirconium oxychloride is added into an ethanol aqueous solution with a volume concentration of 70% at a solid-liquid ratio of 80 mg / mL, and methyl cellulose with a mass twice that of zirconium oxychloride and 0.4 times that of polystyrene microspheres with an average particle size of 10 μm are added. After adjusting the pH to 3.8, the mixture is kept stirred at 50°C for 80 minutes. After the reaction is completed, the pH is adjusted to 5.8, and after aging at room temperature for 25 hours, the resulting product components are centrifuged, dried and sintered at high temperature in sequence, and the final product is the inorganic carrier. Among them, the high-temperature sintering temperature is set to 1150°C, and the sintering time is set to 2 hours.

[0042] The preparation method of the modified liquid is as follows: 3-aminopropyltrimethoxysilane is added to an ethanol aqueous solution with a volume concentration of 90%, and the mixture is mixed and stirred evenly to prepare a silane coupling agent aqueous solution with a concentration of 1.0 mol / L; then the pH thereof is adjusted to 3.8, and the mixture is mixed and stirred at a rate of 500 r / min for 40 minutes at room temperature. After the stirring is completed, the modified liquid is obtained.

[0043] Comparative Example 1: The main difference between this example and Example 1 is that 2,6-dimethyl-2,6-octadienal is not used in the process of preparing solid powder in this example.

[0044] Comparative Example 2: The main difference between this example and Example 1 is that this example uses an equal amount of inorganic carrier to replace the functional auxiliary agent.

[0045] Performance Testing

[0046] The following tests were performed on the various properties of the red ink samples provided in Examples 1 to 3 and Comparative Examples 1 to 2:

[0047] Antibacterial performance test: Cut the paper printed with the red ink sample into a circular paper with a diameter of 7mm, and place it tightly on a surface dish coated with bacteria. Place it at a constant temperature of 37°C for 24 hours, and then measure the diameter of the inhibition zone on the surface dish. Perform the test 5 times in parallel, and take the arithmetic mean as the final result (unit: mm). The larger the inhibition zone, the better the antibacterial effect.

[0048] Wear resistance: Tested in accordance with GB1768-1979 standard.

[0049] Adhesion: Tested in accordance with GB 1720-1979.

[0050] Record the obtained test data in the following table:

[0051]

[0052] Comparing and analyzing the relevant data in the table shows that the rotary red ink provided by the present invention not only has excellent antibacterial properties but also excellent wear resistance, effectively ensuring its quality and grade while also extending its service life to a certain extent. This shows that the antibacterial LED-UV curing rotary red ink provided by the present invention has a broader market prospect and is more suitable for promotion.

[0053] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0054] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the content of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An antibacterial LED-UV curing rotary red ink, characterized in that: The invention is composed of the following raw materials in percentage by weight: 20-25% organic monomer, 8-10% photoinitiator, 0.3-0.8% tris(N-nitroso-N-phenylhydroxylamine) aluminum salt, 1-2% polyethylene wax, 5-8% functional additive, 1.5-2.5% dispersant, 12-15% red pigment, 0.6-1.2% drying agent, and the balance is connecting material; The preparation method of the functional additive comprises the following steps: Step 1, mixing cyanuric chloride, a pretreated inorganic support, N,N-diethylethylamine and a mixed solvent in a mass ratio of 1.5-2.0:1:0.02-0.04:8-12, adding 2,6-dimethyl-2,6-octadienal in an amount of 0.1-0.2 times the mass of the pretreated inorganic support, stirring and mixing evenly, and then stirring and reacting at a temperature of 45-55°C for 3-5 hours; after the reaction is completed, the product components are subjected to solid-liquid separation, and the obtained filter cake is washed with anhydrous ethanol and deionized water for 3-5 times respectively; then vacuum drying is performed, and the obtained solid powder is stored and used for standby use; wherein the mixed solvent is prepared by mixing DMF and anhydrous ethanol in a volume ratio of 2-3:1; Step 2: 1,3-benzenediol, solid powder, aluminum chloride and chlorobenzene are mixed and stirred uniformly in a mass ratio of 1.3-1.8:1:0.03-0.05:7-10, and the mixture is stirred and reacted at a temperature of 30-40° C. for 30-40 minutes, and then the reaction temperature is raised to 90-95° C., and the mixture is stirred and reacted for 5-8 hours, and then filtered. The filter cake is washed with anhydrous ethanol and deionized water for 3-5 times, and then vacuum-dried. The final product is a functional additive; The preparation method of the pretreated inorganic carrier comprises: adding a modifying liquid having a mass 5 to 10 times that of the inorganic carrier to a 0.01 to 0.03 g / mL inorganic carrier ethanol dispersion, and reacting at a temperature of 50 to 60° C. with stirring for 2 to 4 hours; after the reaction is completed, centrifuging the resulting components, washing the filter cake with anhydrous ethanol 3 to 5 times, and then transferring the filter cake to a vacuum drying device, and finally vacuum drying the filter cake at a temperature of 50 to 60° C. to obtain the pretreated inorganic carrier; The inorganic carrier preparation method comprises: adding zirconium oxychloride to an ethanol aqueous solution with a volume concentration of 60-70% at a solid-liquid ratio of 30-80 mg / mL, adding methyl cellulose with a mass of 1.5-2 times that of the zirconium oxychloride and polystyrene microspheres with an average particle size of 5-10 μm with a mass of 0.3-0.4 times that of the zirconium oxychloride, respectively, adjusting the pH to 3.2-3.8, and then stirring at a temperature of 40-50° C. for 50-80 minutes; after the reaction is completed, adjusting the pH to 5.5-5.8, aging at room temperature for 20-25 hours, centrifuging the resulting components, drying, and high-temperature sintering in sequence, to obtain the inorganic carrier; The modified liquid is prepared by adding 3-aminopropyltrimethoxysilane to an ethanol aqueous solution with a volume concentration of 80-90%, mixing and stirring evenly to prepare a silane coupling agent aqueous solution with a concentration of 0.5-1.0 mol / L; then adjusting the pH to 3.5-3.8, and mixing and stirring at a rate of 200-500 r / min for 30-40 minutes at room temperature, and obtaining the modified liquid after the stirring is completed.

2. The antibacterial LED-UV curing rotary red ink according to claim 1, characterized in that: The temperature of the high-temperature sintering is set to 1100-1150° C., and the sintering time is set to 1-2 hours.

3. The antibacterial LED-UV curable rotary red ink according to claim 1, characterized in that: The connecting material is prepared by compounding vinyl ester resin and lauryl acrylate in a mass ratio of 1:0.8-1.

0.

4. The antibacterial LED-UV curable rotary red ink according to claim 1, characterized in that: The photoinitiator is selected from any one of 2,4,6 (trimethylbenzoyl) diphenyl phosphine oxide, bis (2,4,6-trimethylbenzoyl) phenyl phosphine oxide, and 3-methyl-4-phenyl benzophenone.

5. The antibacterial LED-UV curable rotary red ink according to claim 1, characterized in that: The organic monomer is selected from any one of 1,6-hexanediol diacrylate and trimethylolpropane triacrylate.

6. The antibacterial LED-UV curable rotary red ink according to claim 1, characterized in that: The drying agent is selected from any one of cobalt isooctanoate, zirconium isooctanoate and calcium isooctanoate.

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