Low-halogen LED-UV curing rotary blue ink with high transparency

Abstract

The present invention relates to the technical field of printing inks, and in particular to a low-halogen LED-UV curable rotary blue ink with high permeability. The low-halogen LED-UV curable rotary blue ink with high permeability is composed of the following raw materials in parts by weight: 40 to 60 parts of modified polyurethane acrylate, 15 to 25 parts of modified epoxy acrylate, 10 to 20 parts of trimethylolpropane triacrylate, 5 to 10 parts of dicyclopentenyl acrylate, 15 to 20 parts of nano-calcium carbonate, 0.3 to 0.8 parts of phosphate methyl acrylate, 10 to 20 parts of modified polyurethane acrylate, 10 to 20 ... modified polyurethane acrylate, 10 to 20 parts of modified epoxy acrylate, 10 to 20 parts of modified polyurethane acrylate, 10 to 20 parts of modified polyurethane acrylate, 10 to 20 parts of modified polyurethane acrylate, 10 to 20 parts of modified polyurethane acrylate, 10 to 20 parts of modified polyurethane acrylate, 10 to 20 parts of modified polyurethane acrylate, 10 to 20 parts of modified polyurethane acrylate, 10 to 20 parts of modified polyurethane acrylate, 10 to 20 parts of modified polyurethane acrylate, 10 to 20 parts of modified polyurethane acrylate, 10 to 20 parts of modified polyurethane acrylate, 10 to 20 parts of modified polyurethane acrylate The invention relates to a rotary blue ink comprising hydroxyethyl acrylate, 10 to 15 parts of an initiator, 10 to 20 parts of a blue pigment, 0.8 to 1.2 parts of a defoaming agent, 0.6 to 1.0 parts of a leveling agent, 4 to 7 parts of an antibacterial thermal conductive agent and 3 to 6 parts of wax powder. The rotary blue ink prepared by the invention not only has excellent antibacterial properties, but also has excellent thermal conductivity, thereby effectively extending its service life and improving its printing efficiency. Furthermore, the rotary blue ink prepared by the invention also has excellent permeability and low halogen properties, is less toxic and is more environmentally friendly.

Description

Technical Field

[0001] The present invention relates to the technical field of printing inks, in particular to a low-halogen LED-UV curing rotary blue ink with high permeability. Background Art

[0002] Ink is a liquid material used in the printing industry to create text and images on substrates such as paper and fabric. There are many different types of inks, which can be categorized based on printing method, drying method, and application. Rotary inks are specifically designed for rotary printing presses. Composed of four main components: a binder, pigment, filler, and additives, they offer fast drying, high adhesion, and adaptability to high-speed printing. They are commonly used in large-scale printing operations, such as newspapers, magazines, books, and packaging materials.

[0003] In the patent document with application number "CN201610735564.9", an LED-UV ink is disclosed, which includes hexafunctional aliphatic polyurethane acrylate, difunctional epoxy resin, polyester resin, active monomer, adhesive, photoinitiator, and other additives, wherein the active monomer is a mixture of 1,6-hexanediol diacrylate, propoxylated trimethylolpropane triacrylate, and neopentyl glycol diethoxy diacrylate in a mass ratio of 2-4.5:1:2-3.5. Although the LED-UV ink prepared in this patent document has good adhesion properties and is relatively environmentally friendly, its own permeability and thermal conductivity are relatively poor, and its antibacterial properties are relatively insufficient, which not only affects its quality to a certain extent, but also makes it easy to breed bacteria, thereby shortening its service life. Therefore, the present invention provides a low-halogen LED-UV curing rotary blue ink with high permeability to solve the above-mentioned technical problems! Summary of the Invention

[0004] The present invention aims to provide a highly permeable, low-halogen LED-UV-curable rotary blue ink. The resulting rotary blue ink not only exhibits excellent antibacterial properties but also excellent thermal conductivity, effectively extending its service life while also improving printing efficiency. Furthermore, the rotary blue ink prepared by the present invention exhibits excellent permeability and low halogen properties, is less toxic, and is environmentally friendly.

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

[0006] A low-halogen LED-UV curing rotary blue ink with high permeability is composed of the following raw materials in parts by weight: 40-60 parts of modified polyurethane acrylate, 15-25 parts of modified epoxy acrylate, 10-20 parts of trimethylolpropane triacrylate, 5-10 parts of dicyclopentenyl acrylate, 15-20 parts of nano-calcium carbonate, 0.3-0.8 parts of phosphate hydroxyethyl methacrylate, 10-15 parts of initiator, 10-20 parts of blue pigment, 0.8-1.2 parts of defoaming agent, 0.6-1.0 parts of leveling agent, 4-7 parts of antibacterial thermal conductive agent and 3-6 parts of wax powder.

[0007] Furthermore, the preparation method of the antibacterial thermal conductive agent includes the following steps: adding the modified nanocarrier into an ethanol dispersion of graphene oxide with a concentration of 10 to 20 wt% at a solid-liquid ratio of 20 to 50 g / L, and then adding 3-methoxy-4-hydroxybenzaldehyde with a mass of 0.5 to 0.8 times that of the modified nanocarrier. After mixing and stirring evenly, the mixture is kept warm and stirred at a temperature of 40 to 60°C for 5 to 8 hours; after the reaction is completed, the product components are sequentially subjected to solid-liquid separation, washing and drying treatment to obtain the antibacterial thermal conductive agent.

[0008] Furthermore, the preparation method of the modified nanocarrier is as follows: the nanocarrier is put into an ethanol aqueous solution with a volume concentration of 70-80% at a solid-liquid ratio of 20-50 g / L, and then 3-aminopropyltrimethoxysilane is added in an amount 2-5 times the mass of the nanocarrier. After mixing and stirring evenly, the mixture is kept warm at a temperature of 60-70°C for 5-8 hours. After the reaction is completed, the product components are sequentially subjected to solid-liquid separation, washing and drying treatment to obtain the modified nanocarrier.

[0009] Furthermore, the preparation method of the nanocarrier comprises the following steps:

[0010] Step 1, adding tetrabutyl titanate into ethylene glycol with a volume 20 to 30 times that of tetrabutyl titanate at a stirring rate of 500 to 800 r / min, continuously introducing nitrogen into the mixture for 10 to 20 minutes while stirring, and pouring the resulting mixed components into a mixed solvent after mixing and stirring for 20 to 30 hours, mechanically stirring for 20 to 30 minutes, and then standing and aging at room temperature for 20 to 25 hours; after aging is completed, collecting the product and washing and drying it in sequence, and storing the resulting solid powder for future use;

[0011] Step 2: Disperse the solid powder evenly in ultrapure water at a solid-liquid ratio of 10 to 20 g / L. The resulting dispersion is kept at 160 to 190°C for 10 to 20 hours. After the reaction is complete, the resulting components are naturally cooled to room temperature, and then filtered, washed, and dried in sequence to obtain the nanocarrier.

[0012] Furthermore, the mixed solvent is prepared by mixing ultrapure water and acetone in a volume ratio of 1:20 to 50.

[0013] Furthermore, the initiator is selected from any one of 2-isopropylthioxanthone, trimethylbenzoyldiphenylphosphine oxide, and 2-hydroxy-2-methylpropiophenone.

[0014] Furthermore, the blue pigment is selected from any one of phthalocyanine blue BGS and phthalocyanine blue B.

[0015] Furthermore, the defoaming agent is any one of BYK-088, BYK-065, BYK-066N, and BYK055 defoaming agents.

[0016] Furthermore, the leveling agent is any one of BYK-306, BYK-366, BYK-333, and BYK-307.

[0017] Furthermore, the wax powder is selected from any one of polyethylene wax powder, polytetrafluoroethylene wax powder and polyamide wax powder.

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

[0019] The present invention uses tetrabutyl titanate and ethylene glycol as raw materials to prepare nano-titanium dioxide with a porous spherical structure, i.e., a nanocarrier. The nanocarrier is then placed in an ethanolic aqueous solution, to which 3-aminopropyltrimethoxysilane is added. The mixture is stirred until uniform, and then subjected to a heat-insulating reaction. The 3-aminopropyltrimethoxysilane chemically reacts with relevant groups on the surface of the nanocarrier, forming bonds on the surface and within the porous structure. The resulting modified nanocarrier is placed in an ethanolic dispersion of graphene oxide, to which 3-methoxy-4-hydroxybenzaldehyde is added. The mixture is mixed until uniform, and then subjected to a heat-insulating reaction. The 3-methoxy-4-hydroxybenzaldehyde is "grafted" onto the surface of the nanocarrier and within its porous structure via the 3-aminopropyltrimethoxysilane. The synergistic effect of the nanocarrier and the 3-methoxy-4-hydroxybenzaldehyde results in an antibacterial thermal conductive agent with excellent antibacterial properties, effectively extending the service life of rotary blue ink. Furthermore, the surface of the antimicrobial thermal conductive agent is coated with a graphene oxide film, which effectively improves its thermal conductivity, accelerates the drying rate of the rotary blue ink, and improves its printing efficiency. Furthermore, the rotary blue ink prepared by the present invention has excellent permeability and low halogen content, is less toxic, and is more environmentally friendly. DETAILED DESCRIPTION

[0020] 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

[0021] A low-halogen LED-UV curable rotary blue ink with high transparency, composed of the following raw materials in parts by weight: 40 parts of modified polyurethane acrylate (Guangzhou Boxing model B-6041 tetrafunctional polyurethane acrylate with a viscosity of 9000-14000 cps / 30°C and an acid value of ≤2.0 mgKOH / g), 15 parts of modified epoxy acrylate (Guangzhou Boxing Chemical Materials Co., Ltd., 2-functionality modified bisphenol A epoxy acrylate model B-151XD, viscosity of 16000-22000cps / 60℃), 10 parts of trimethylolpropane triacrylate, 5 parts of dicyclopentenyl acrylate, 15 parts of nano-calcium carbonate, 0.3 parts of phosphate hydroxyethyl methacrylate, 10 parts of 2-isopropylthioxanthone, 10 parts of phthalocyanine blue BGS, 0.8 parts of BYK-088 defoamer, 0.6 parts of BYK-306 leveling agent, 4 parts of antibacterial thermal conductive agent and 3 parts of polyethylene wax powder.

[0022] The preparation method of the antibacterial thermal conductive agent includes the following steps: adding the modified nanocarrier into an ethanol dispersion of graphene oxide with a concentration of 10wt% at a solid-liquid ratio of 20g / L, then adding 3-methoxy-4-hydroxybenzaldehyde with a mass of 0.5 times that of the modified nanocarrier, mixing and stirring evenly, and then stirring and reacting at a temperature of 40°C for 5 hours; after the reaction is completed, the product components are sequentially subjected to solid-liquid separation, washing and drying treatment to obtain the antibacterial thermal conductive agent.

[0023] The preparation method of the modified nanocarrier is as follows: the nanocarrier is put into an ethanol aqueous solution with a volume concentration of 70% at a solid-liquid ratio of 20g / L, and then 3-aminopropyltrimethoxysilane is added in an amount twice the mass of the nanocarrier. After mixing and stirring evenly, the mixture is kept warm at 60°C for 5 hours. After the reaction is completed, the product components are sequentially subjected to solid-liquid separation, washing and drying treatment to obtain the modified nanocarrier.

[0024] The preparation method of the nanocarrier comprises the following steps:

[0025] Step 1: adding tetrabutyl titanate to ethylene glycol (20 times its volume) at a stirring rate of 500 r / min, and continuously introducing nitrogen into the mixture for 10 minutes while stirring. After mixing and stirring for 20 hours, the resulting mixed components are poured into a mixed solvent, mechanically stirred for 20 minutes, and then allowed to stand at room temperature for 20 hours; after aging, the product is collected and washed and dried in turn, and the resulting solid powder is stored for future use; wherein the mixed solvent is prepared by mixing ultrapure water and acetone in a volume ratio of 1:20;

[0026] Step 2: The solid powder is evenly dispersed in ultrapure water at a solid-liquid ratio of 10 g / L, and the resulting dispersion is kept at 160°C for 10 hours. After the reaction is completed, the resulting components are naturally cooled to room temperature, and then filtered, washed, and dried in sequence to obtain the nanocarrier. Example 2

[0027] A low-halogen LED-UV curable rotary blue ink with high permeability is composed of the following raw materials in parts by weight: 50 parts of modified polyurethane acrylate, 20 parts of modified epoxy acrylate, 15 parts of trimethylolpropane triacrylate, 10 parts of dicyclopentenyl acrylate, 15 parts of nano-calcium carbonate, 0.5 parts of hydroxyethyl methacrylate phosphate, 15 parts of trimethylbenzoyl diphenyl phosphine oxide, 10 parts of phthalocyanine blue B, 1.0 part of BYK-065 defoamer, 0.8 part of BYK-366 leveling agent, 5 parts of antibacterial thermal conductive agent and 3-6 parts of polytetrafluoroethylene wax powder.

[0028] The preparation method of the antibacterial thermal conductive agent includes the following steps: adding the modified nanocarrier into an ethanol dispersion of graphene oxide with a concentration of 15wt% at a solid-liquid ratio of 30g / L, then adding 3-methoxy-4-hydroxybenzaldehyde with a mass of 0.6 times that of the modified nanocarrier, mixing and stirring evenly, and then stirring and reacting at a temperature of 50°C for 6h; after the reaction is completed, the product components are sequentially subjected to solid-liquid separation, washing and drying treatment to obtain the antibacterial thermal conductive agent.

[0029] The preparation method of the modified nanocarrier is as follows: the nanocarrier is put into an ethanol aqueous solution with a volume concentration of 75% at a solid-liquid ratio of 40g / L, and then 3-aminopropyltrimethoxysilane is added in an amount that is 3 times the mass of the nanocarrier. After mixing and stirring evenly, the mixture is kept warm at 65°C for 6 hours. After the reaction is completed, the product components are sequentially subjected to solid-liquid separation, washing and drying treatment to obtain the modified nanocarrier.

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

[0031] Step 1: adding tetrabutyl titanate to ethylene glycol (25 times its volume) at a stirring rate of 600 r / min, and continuously introducing nitrogen into the mixture for 15 minutes while stirring. After mixing and stirring for 25 hours, the resulting mixed components are poured into a mixed solvent, mechanically stirred for 25 minutes, and then allowed to stand at room temperature for 20 hours; after aging, the product is collected and washed and dried in turn, and the resulting solid powder is stored for future use; wherein the mixed solvent is prepared by mixing ultrapure water and acetone in a volume ratio of 1:30;

[0032] Step 2: The solid powder is evenly dispersed in ultrapure water at a solid-liquid ratio of 15 g / L, and the resulting dispersion is kept at 180°C for 15 hours. After the reaction is completed, the resulting components are naturally cooled to room temperature, and then filtered, washed, and dried in sequence to obtain the nanocarrier. Example 3

[0033] A low-halogen LED-UV curable rotary blue ink with high permeability is composed of the following raw materials in parts by weight: 60 parts of modified polyurethane acrylate, 25 parts of modified epoxy acrylate, 20 parts of trimethylolpropane triacrylate, 10 parts of dicyclopentenyl acrylate, 20 parts of nano-calcium carbonate, 0.8 parts of hydroxyethyl methacrylate phosphate, 15 parts of 2-hydroxy-2-methylpropiophenone, 20 parts of phthalocyanine blue BGS, 1.2 parts of BYK-066N defoamer, 1.0 part of BYK-333 leveling agent, 7 parts of antibacterial thermal conductive agent and 6 parts of polyamide wax powder.

[0034] The preparation method of the antibacterial thermal conductive agent includes the following steps: adding the modified nanocarrier into an ethanol dispersion of graphene oxide with a concentration of 20wt% at a solid-liquid ratio of 50g / L, then adding 3-methoxy-4-hydroxybenzaldehyde with a mass of 0.8 times that of the modified nanocarrier, mixing and stirring evenly, and then stirring and reacting at a temperature of 60°C for 8h; after the reaction is completed, the product components are sequentially subjected to solid-liquid separation, washing and drying treatment to obtain the antibacterial thermal conductive agent.

[0035] The preparation method of the modified nanocarrier is as follows: the nanocarrier is put into an ethanol aqueous solution with a volume concentration of 80% at a solid-liquid ratio of 50g / L, and then 3-aminopropyltrimethoxysilane with a mass 5 times that of the nanocarrier is added, and the mixture is mixed and stirred evenly, and then kept warm at a temperature of 70°C for 8 hours; after the reaction is completed, the product components are sequentially subjected to solid-liquid separation, washing and drying treatment to obtain the modified nanocarrier.

[0036] The preparation method of the nanocarrier comprises the following steps:

[0037] Step 1: adding tetrabutyl titanate to ethylene glycol (30 times its volume) at a stirring rate of 800 r / min, and continuously introducing nitrogen into the mixture for 20 minutes while stirring. After mixing and stirring for 30 hours, the resulting mixed components are poured into a mixed solvent, mechanically stirred for 30 minutes, and then allowed to stand at room temperature for 25 hours; after aging, the product is collected and washed and dried in turn, and the resulting solid powder is stored for future use; wherein the mixed solvent is prepared by mixing ultrapure water and acetone in a volume ratio of 1:50;

[0038] Step 2: The solid powder is evenly dispersed in ultrapure water at a solid-liquid ratio of 20 g / L, and the resulting dispersion is kept at 190°C for 20 hours. After the reaction is completed, the resulting components are naturally cooled to room temperature, and then filtered, washed, and dried in sequence to obtain the nanocarrier.

[0039] Comparative Example 1: The main difference between this comparative example and Example 1 is that this comparative example uses an equal amount of nano-carriers instead of the antibacterial thermal conductive agent.

[0040] Comparative Example 2: The main difference between this comparative example and Example 1 is that 3-methoxy-4-hydroxybenzaldehyde is not used in the process of preparing the antibacterial thermal conductive agent in this comparative example.

[0041] Performance Testing

[0042] The following performance tests were performed on the rotary blue ink samples provided in Examples 1 to 3 and Comparative Examples 1 to 2:

[0043] 1. Antibacterial performance test: The antibacterial performance of each group of rotating blue ink samples was tested. The culture medium was nutrient agar, and the bacterial species were Staphylococcus aureus, Escherichia coli and Aspergillus niger. A bacterial suspension concentration of 2.0×106mL was prepared respectively. 0.5g of rotating blue ink sample was added to the bacterial suspension, and the suspension was cultured at 37°C for 24h, and the size of the inhibition zone was detected.

[0044] 2. Thermal conductivity test: The thermal conductivity of each group of rotary blue ink samples was tested using the laser method.

[0045] 3. Printing performance test: Use a high-speed rotary printing press to conduct printing tests on each group of rotary blue ink samples, and record their printing speed.

[0046] Record the obtained test data in the following table:

[0047]

[0048] Comparing and analyzing the relevant data in the table shows that the rotary blue ink prepared by the present invention not only has excellent antibacterial properties, but also has excellent thermal conductivity, effectively extending its service life while also improving its printing efficiency. Furthermore, the prepared rotary blue ink also has excellent permeability and low halogen properties, is less toxic, and is more environmentally friendly. This shows that the highly permeable, low-halogen LED-UV-curable rotary blue ink provided by the present invention has a broader market prospect and is more suitable for promotion.

[0049] 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.

[0050] 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. A low-halogen LED-UV curable rotary blue ink with high permeability, characterized in that: The invention is composed of the following raw materials in parts by weight: 40-60 parts of modified polyurethane acrylate, 15-25 parts of modified epoxy acrylate, 10-20 parts of trimethylolpropane triacrylate, 5-10 parts of dicyclopentenyl acrylate, 15-20 parts of nano-calcium carbonate, 0.3-0.8 parts of phosphate hydroxyethyl methacrylate, 10-15 parts of initiator, 10-20 parts of blue pigment, 0.8-1.2 parts of defoaming agent, 0.6-1.0 parts of leveling agent, 4-7 parts of antibacterial thermal conductive agent and 3-6 parts of wax powder; The preparation method of the antibacterial thermal conductive agent comprises the following steps: adding a modified nanocarrier into an ethanol dispersion of graphene oxide with a concentration of 10 to 20 wt% at a solid-liquid ratio of 20 to 50 g / L, then adding 3-methoxy-4-hydroxybenzaldehyde in an amount 0.5 to 0.8 times the mass of the modified nanocarrier, mixing and stirring uniformly, and then reacting at a temperature of 40 to 60° C. with stirring for 5 to 8 hours; after the reaction is completed, sequentially performing solid-liquid separation, washing, and drying treatments on the resultant components to obtain the antibacterial thermal conductive agent; The modified nanocarrier is prepared by adding the nanocarrier to an ethanol aqueous solution with a volume concentration of 70-80% at a solid-liquid ratio of 20-50 g / L, then adding 3-aminopropyltrimethoxysilane in an amount 2-5 times the mass of the nanocarrier, mixing and stirring, and then heat-retaining the mixture at a temperature of 60-70° C. for 5-8 hours. After the reaction is completed, the resultant components are sequentially subjected to solid-liquid separation, washing, and drying to obtain the modified nanocarrier. The preparation method of the nanocarrier comprises the following steps: Step 1, adding tetrabutyl titanate into ethylene glycol with a volume 20 to 30 times that of tetrabutyl titanate at a stirring rate of 500 to 800 r / min, continuously introducing nitrogen into the mixture for 10 to 20 minutes while stirring, and pouring the resulting mixed components into a mixed solvent after mixing and stirring for 20 to 30 hours, mechanically stirring for 20 to 30 minutes, and then standing and aging at room temperature for 20 to 25 hours; after aging is completed, collecting the product and washing and drying it in sequence, and storing the resulting solid powder for future use; Step 2: Disperse the solid powder evenly in ultrapure water at a solid-liquid ratio of 10 to 20 g / L. The resulting dispersion is kept at 160 to 190°C for 10 to 20 hours. After the reaction is complete, the resulting components are naturally cooled to room temperature, and then filtered, washed, and dried in sequence to obtain the nanocarrier.

2. The low-halogen LED-UV curable rotary blue ink with high permeability according to claim 1, characterized in that: The mixed solvent is prepared by mixing ultrapure water and acetone in a volume ratio of 1:20 to 50.

3. The low-halogen LED-UV curable rotary blue ink with high permeability according to claim 1, characterized in that: The initiator is selected from any one of 2-isopropylthioxanthone, trimethylbenzoyldiphenylphosphine oxide, and 2-hydroxy-2-methylpropiophenone.

4. The low-halogen LED-UV curable rotary blue ink with high permeability according to claim 1, characterized in that: The blue pigment is selected from any one of phthalocyanine blue BGS and phthalocyanine blue B.

5. The low-halogen LED-UV curable rotary blue ink with high permeability according to claim 1, characterized in that: The defoamer is any one of BYK-088, BYK-065, BYK-066N and BYK055.

6. The low-halogen LED-UV curable rotary blue ink with high permeability according to claim 1, characterized in that: The leveling agent is any one of BYK-306, BYK-366, BYK-333, and BYK-307.

7. The low-halogen LED-UV curable rotary blue ink with high permeability according to claim 1, characterized in that: The wax powder is selected from any one of polyethylene wax powder, polytetrafluoroethylene wax powder and polyamide wax powder.

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