Antibacterial and antifog display coating composition, manufacturing method thereof, and transparent sheet containing thereof and automotive displays

Abstract

This case relates to an antibacterial and anti-fog display coating composition, its manufacturing method, and a transparent sheet and product containing the composition, which is obtained through a polymerization step of a dual-ionic polymer and an emulsifier. After coating a substrate with the antibacterial and anti-fog display coating composition, the resulting transparent sheet possesses transparency, antibacterial properties, anti-fog properties, and water resistance, thereby ensuring that automotive displays can still operate in the harshest environments.

Description

Technical Field

[0001] This invention relates to a coating composition, particularly an antibacterial and antifog display coating composition, a method for manufacturing the same, and a transparent sheet containing the same and an automotive display. Background Technology

[0002] In-vehicle displays bring convenience and entertainment while driving, but they also have drawbacks such as the accumulation of germs and a tendency to fog up. Specifically, in-vehicle displays are mostly operated by touch, and hands easily accumulate germs. Therefore, if not cleaned properly, the display can easily become a medium for contact infection. Secondly, the interior temperature of a car is usually maintained at a comfortable level. However, if the temperature difference between the interior and exterior of the car is too large, moisture in the air can easily condense on the display, forming water droplets. This not only causes the image projected onto the screen to scatter, affecting usability, but can also cause the electronic components inside the screen to become damp and malfunction.

[0003] Existing methods for preventing water vapor condensation on automotive displays include placing a polyethylene terephthalate (PET) protective sheet outside the horizontal polarizer of the display, and coating the PET protective sheet with an anti-fogging agent. The anti-fogging agent has both hydrophilic and hydrophobic ends and is an emulsifier. The hydrophilic end reduces the surface tension of water, causing water vapor to condense and form a water film instead of water droplets, while the hydrophobic end allows the water film to flow. However, because the emulsifier is soluble in water, the flowing water film can also carry away the anti-fogging agent, thus limiting the effectiveness and number of applications of the anti-fogging agent.

[0004] In view of this, there is an urgent need for a coating composition that can form a transparent sheet with transparency, antibacterial properties, anti-fogging properties, and waterproof properties to solve the above problems. Summary of the Invention

[0005] Therefore, one aspect of the present invention is to provide a method for manufacturing an antibacterial and anti-fog display coating composition, comprising a polymerization step of a dual-ionic polymer and an emulsifier. After the above-mentioned antibacterial and anti-fog display coating composition is coated onto a substrate, the resulting transparent sheet possesses transparency, antibacterial properties, anti-fog properties, and water resistance.

[0006] Another aspect of the present invention is to provide an antibacterial and antifog display coating composition, which is obtained by the above-described manufacturing method.

[0007] Another aspect of the present invention is to provide an antibacterial and antifog transparent sheet comprising a substrate and a coating layer formed using the above-described antibacterial and antifog display coating composition.

[0008] Another aspect of the present invention is to provide an automotive display comprising the above-mentioned transparent sheet.

[0009] According to the above-described form of the present invention, a method for manufacturing an antibacterial and anti-fog display coating composition is provided. First, starting materials are provided, comprising a dual-ionic polymer solution, an emulsifier, a thermal polymerization initiator, and an equilibrium amount of water. Then, the starting materials are polymerized at 55°C to 65°C to obtain the antibacterial and anti-fog display coating composition.

[0010] The diionic polymer solution comprises a diionic polymer and a co-solvent, wherein the diionic polymer contains a cationic group having at least one double bond. The co-solvent is selected from the group consisting of saturated physiological saline, methanol, ethanol, and the above. Based on a starting material content of 100 wt%, the content of the diionic polymer is 1 wt% to 5 wt%, and the content of the co-solvent in the starting material is 10 wt% to 15 wt%. The emulsifier contains at least one double bond, wherein based on a starting material content of 100 wt%, the content of the emulsifier is greater than 15 wt% and less than or equal to 25 wt%. Based on a starting material content of 100 wt%, the content of the thermal polymerization initiator is 0.1 wt% to 0.3 wt%.

[0011] In some embodiments of the present invention, the dual-ionic polymer comprises the AU of formula (1). m BU n Block copolymers, random copolymers, or alternating copolymers,

[0012] (1)

[0013] In AU expression (1), -CR 1 R 2 - The dimethyl group with substituents shown, BU represents -CR in formula (1). 4 HCH2CR 5 H- represents a divalent propyl group with substituents, where m represents an integer from 5 to 120, n represents an integer from 5 to 120, and R... 1 Indicates a straight-chain, branched, or cyclic alkyl or ester group having 3 to 18 carbon atoms [i.e., -COOR]. x , where R x Represents a straight-chain, branched, or cyclic alkyl group, aryl group, or heteroaryl group with 5 to 12 carbon atoms, having 3 to 18 carbon atoms. 2 R is a hydrogen atom or a methyl group. 4 It is a carboxyl group, and R 5 It is a cationic group.

[0014] In some embodiments of the present invention, the cationic group is N,N-dimethylammonium ethylamino vinyl, N,N-dimethylammonium propylamino vinyl, N,N-dimethylammonium butylamino vinyl, or N,N-dimethylammonium pentylamino vinyl.

[0015] In some embodiments of the present invention, the emulsifier comprises polyoxyethylene sorbitan monooleate and / or sorbitol monooleate.

[0016] In some embodiments, the thermal polymerization initiator comprises 2,2'-azobisisobutyronitrile, 2,2'-azobis-2-methylbutyronitrile, dimethyl 2,2'-azobis(2-methylpropionic acid) and / or 4,4'-azobis-4-cyanopentanoic acid.

[0017] According to another aspect of the present invention, an antibacterial and antifog display coating composition is provided, which is obtained by the above-described manufacturing method.

[0018] According to another aspect of the present invention, an antibacterial and antifog transparent sheet is provided, comprising a substrate and a coating layer, wherein the coating layer is disposed on the surface of the substrate, and the coating layer is formed using the aforementioned antibacterial and antifog display coating composition.

[0019] In some embodiments of the present invention, the transparent sheet does not fog up after being placed in hot water at 45°C to 55°C for 30 to 90 seconds.

[0020] In some embodiments of the present invention, the relative antibacterial rate of the surface of the transparent sheet relative to the surface of the substrate is at least 80%.

[0021] According to another aspect of the present invention, an automotive display is provided, comprising the aforementioned transparent sheet.

[0022] The present invention relates to an antibacterial and antifog display coating composition and its manufacturing method, wherein the antibacterial and antifog display coating composition is obtained by polymerizing a cationic dual-ion polymer solution with an emulsifier, and the transparent sheet formed after the antibacterial and antifog display coating composition is coated on a substrate has transparency, antibacterial properties, antifog properties and waterproof properties, thereby ensuring that the automotive display can still operate in the most severe environments. Attached Figure Description

[0023] To make the above and other objects, features, advantages and embodiments of the present invention more apparent and understandable, the accompanying drawings are described in detail below:

[0024] Figure 1 A flowchart illustrating a method for manufacturing an antibacterial and antifog display coating composition according to an embodiment of the present invention is shown. Detailed Implementation

[0025] As previously stated, the present invention provides an antibacterial and anti-fog display coating composition, its manufacturing method, a transparent sheet containing the composition, and an automotive display. The composition is obtained by polymerizing a dual-ionic polymer with an emulsifier. After the antibacterial and anti-fog display coating composition is coated on a substrate, the resulting transparent sheet has transparency, antibacterial properties, anti-fog properties, and waterproof properties, thereby ensuring that the automotive display can still operate in the harshest environments.

[0026] Please see Figure 1 The diagram illustrates a flowchart of a method 100 for manufacturing an antibacterial and anti-fog display coating composition according to an embodiment of the present invention. First, as shown in step 110, starting materials are provided, wherein the starting materials may include, but are not limited to, a dual-ionic polymer solution, an emulsifier, a thermal polymerization initiator, and water. Next, the starting materials are polymerized at 55°C to 65°C (as shown in step 130) to obtain the antibacterial and anti-fog display coating composition (as shown in step 150).

[0027] The aforementioned dual-ionic polymer solution may include, but is not limited to, a dual-ionic polymer and a cosolvent. This dual-ionic polymer contains cationic groups, and each cationic group has at least one double bond to facilitate the polymerization reaction detailed below. In one embodiment, the dual-ionic polymer may include, but is not limited to, the structure described in patent number TW I496819 B, wherein the dual-ionic polymer comprises AU as described in formula (1). m BU n Block copolymers, random copolymers, or alternating copolymers. AU represents -CR in formula (1). 1 R 2 - The dimethyl group with substituents shown, BU represents -CR in formula (1). 4 HCH2CR 5 H- represents a divalent propyl group with substituents, where m represents an integer from 5 to 120, and n represents an integer from 5 to 120, wherein AU has an anchoring group and BU has a biionic group or a pseudo-biionic group.

[0028] (1)

[0029] In detail, R 1 Examples include linear, branched, or cyclic alkyl groups (i.e., -COOR) having 3 to 18 carbon atoms. x , where R x Represents a straight-chain, branched, or cyclic alkyl group, aryl group, or heteroaryl group with 5 to 12 carbon atoms, having 3 to 18 carbon atoms. 2 It can be, for example, a hydrogen atom or a methyl group, R 4 For example, it can be a carboxyl group (-COOH), and R 5 For example, it can be a cationic group.

[0030] In one embodiment, the cationic group may be, for example, N,N-dimethylammonium-ethylene-1-amino-vinyl, N,N-dimethylammonium-propylene-1-amino-vinyl, N,N-dimethylammonium-butylene-1-amino-vinyl and N,N-dimethylammonium-pentylene-1-amino-vinyl.

[0031] Based on a starting material content of 100% by weight, the content of the dual-ion polymer can be, for example, 1% to 5% by weight, preferably 1% to 3% by weight. If the content of the dual-ion polymer is not within the above range, the antibacterial and / or waterproof properties of the transparent sheet formed by the obtained coating composition are poor, or if the production cost increases significantly, the antibacterial, antifogging, and / or waterproof properties of the transparent sheet formed by the coating composition are not significantly improved.

[0032] The cosolvent must be able to fully dissolve the dual-ionic polymer. In one embodiment, the cosolvent may be, for example, selected from the group consisting of saturated physiological saline, methanol, ethanol, and the above. In one embodiment, based on a starting material content of 100% by weight, the cosolvent content may be, for example, 10% to 15% by weight. If the cosolvent content is too low, the dual-ionic polymer cannot be uniformly mixed in the starting material. However, if the cosolvent content is too high, the resulting antibacterial and anti-fog display coating composition, after being applied to a substrate, may leave residual cosolvent in the coating layer, thereby irritating the skin and posing a safety concern.

[0033] The aforementioned emulsifier has double bonds to polymerize with the double bonds on the cationic groups of the diionic polymer. In one embodiment, the emulsifier may comprise, but is not limited to, polyoxyethylene sorbitan monooleate (e.g., Tween). ® 80) and / or sorbitol monooleate (e.g., Span ® 80). In one embodiment, the emulsifier may selectively comprise a long-chain unsaturated fatty acid hydrocarbon containing 11 to 17 carbons.

[0034] Based on a starting material content of 100% by weight, the emulsifier content can be, for example, greater than 15% by weight and less than or equal to 25% by weight, preferably 18% to 22% by weight. If the emulsifier content is not within the above range, the film-forming properties of the resulting antibacterial and anti-fog display coating composition will be poor, and the anti-fog properties of the resulting antibacterial and anti-fog transparent sheet will be poor. Alternatively, excessive emulsifier will dilute the content of the dual-ion polymer in the starting material, resulting in the inability of the resulting antibacterial and anti-fog display coating composition to form an antibacterial transparent sheet, and a longer drying time is required after coating the substrate to form the coating layer.

[0035] The aforementioned thermal polymerization initiator may include, but is not limited to, 2,2'-azobisisobutyronitrile, 2,2'-azobis-2-methylbutyronitrile, dimethyl 2,2'-azobis(2-methylpropionic acid) and / or 4,4'-azobis-4-cyanopentanoic acid. Based on a starting material content of 100% by weight, the content of the thermal polymerization initiator may be, for example, 0.1% by weight to 0.3% by weight. If the content of the thermal polymerization initiator is outside the aforementioned range, the efficiency of subsequent polymerization steps will be poor, or the antibacterial and antifogging properties of the transparent sheet formed from the coating composition will not be significantly improved, even with a substantial increase in production costs. The aforementioned water may be, for example, distilled water, deionized water, and / or deionized water.

[0036] The antibacterial and anti-fog display coating composition prepared above, after being coated onto a substrate, can form a transparent sheet. This transparent sheet includes a substrate and a coating layer, the coating layer being disposed on the surface of the substrate, and the coating layer being formed by the antibacterial and anti-fog display coating composition. The type of substrate material is not limited, but a material with high transparency is preferred, specifically polyethylene terephthalate (PET). In one embodiment, the method of forming the coating layer is not limited. In one specific example, the antibacterial and anti-fog display coating composition is applied to the substrate by printing, and then dried at 110°C to 130°C for 20 to 30 minutes, thereby forming a coating layer on the surface of the substrate.

[0037] The aforementioned transparent sheet material possesses transparency, antibacterial properties, anti-fog properties, and waterproof properties. "Transparency" as used herein refers to the excellent light transmittance of the transparent sheet material; the evaluation method is not limited, and can include, for example, visual assessment. "Antibacterial properties" as used herein refer to the surface of the transparent sheet material being less susceptible to adhesion by bacteria, viruses, and / or droplets containing them. The antibacterial evaluation method is not limited, and can include, for example, relative bacterial count percentage or relative antibacterial rate. The relative bacterial count percentage refers to the percentage of surface bacteria (i.e., N1) on the transparent sheet material (substrate coated with the antibacterial and anti-fog display coating composition) to the surface bacteria (i.e., N2) on the substrate material (not coated with the antibacterial and anti-fog display coating composition) [i.e., (N1 / N2) × 100%], and the relative antibacterial rate is the difference between 100% and the relative bacterial count percentage [i.e., 100% - (N1 / N2) × 100%]. Experiments have shown that the relative bacterial count of transparent sheets is less than 20%, and can even be less than 10%, meaning that the relative antibacterial rate can reach more than 80%, or even more than 90%.

[0038] The "anti-fogging property" described in this article refers to the resistance of the transparent sheet surface to condensation. Anti-fogging properties can be assessed, for example, by placing the transparent sheet in warm water (approximately 45°C to 55°C) for a period of time and then evaluating whether the transparency of the transparent sheet changes and / or whether water droplets form on the surface. Experiments have confirmed that when a transparent sheet is placed in water at 45°C to 55°C for 30 to 90 seconds, it retains high transparency and no water droplets adhere to its surface.

[0039] The "waterproof" property described herein refers to the transparent sheet retaining its antibacterial and / or anti-fogging properties after repeated washing. The number of washes is not limited, and can be, for example, 20 to 40 times, or 30 times. In other words, the transparent sheet formed by coating with the antibacterial and anti-fogging display coating composition of this invention can withstand a relatively large number of washes. In practical use, this not only extends the service life but also prevents the antibacterial and / or anti-fogging properties of the transparent sheet from deteriorating after wiping with water.

[0040] It should be noted that, compared to unwashed transparent sheets, washed transparent sheets can form a dense hydration layer on their surface. This hydration layer not only reduces the adhesion of bacteria, viruses, and / or droplets containing them to the surface of the transparent sheet, but also increases the antibacterial properties of the transparent sheet after washing.

[0041] The aforementioned transparent sheet material possesses transparency, antibacterial properties, anti-fogging properties, and waterproof properties, and can be applied to products such as automotive displays that are used in environments with large temperature differences.

[0042] It should be further noted that the antibacterial and antifog display coating composition of the present invention is obtained by polymerizing a dual-ionic polymer and a specific emulsifier. The dual-ionic polymer has anchoring groups (i.e., AU groups), which provide good coatability, film-forming properties and surface adhesion. Therefore, compared with the mixture obtained by mixing dual-ionic polymer and emulsifier (without the polymerization step), the antibacterial and antifog display coating composition has better water resistance.

[0043] Secondly, for hydrophobic substrates with poor chemical reactivity, such as PET, more energy-intensive and / or chemically-intensive methods (e.g., plasma treatment and / or alkali treatment) are required for coating. Otherwise, simple immersion coating results in poor adhesion of the coating layer. However, the aforementioned specific emulsifiers have long-chain (e.g., 11 to 17 carbon) fatty acid hydrocarbons, which can be better anchored to the surface of hydrophobic substrates. Furthermore, the double bonds can polymerize the emulsifier with diionic polymers. Therefore, when antibacterial and anti-fog display coating compositions are applied to the surface of PET substrates via immersion coating, the resulting coating layer can adhere better to the PET substrate surface.

[0044] Furthermore, compared to mixing dual-ionic polymers and emulsifiers into the substrate, coating can achieve better antibacterial and anti-fogging properties with a smaller amount of dual-ionic polymers and emulsifiers.

[0045] The following examples illustrate the application of the present invention, but are not intended to limit the invention. Those skilled in the art can make various modifications and refinements without departing from the spirit and scope of the invention.

[0046] Preparation of antibacterial and anti-fogging transparent sheets

[0047] Preparation Example

[0048] Dissolve an appropriate amount of the diionic polymer in methanol to prepare a diionic polymer solution. Then, mix the diionic polymer solution (use amount: 10% by weight), Tween... ® 80 (20 wt%), 2,2'-azobisisobutyronitrile (0.2 wt%), and a balanced amount of water were used to obtain a starting material with a diionic polymer content of 2 wt%. The diionic polymer was manufactured according to the method disclosed in patent number TW I496819 B (provided by Pribo Biotechnology Co., Ltd.), wherein the diionic polymer has a cationic group, and this cationic group has at least one double bond. Before use, the diionic polymer was sieved through an 80-mesh sieve. Next, the starting material was polymerized at 60°C to obtain a coating composition. PET sheets were impregnated with the coating composition and dried at 120°C for 30 minutes to form the transparent sheet of the prepared example.

[0049] Preparation of comparative examples

[0050] A comparative example was prepared using PET sheets without coating composition.

[0051] Evaluation methods

[0052] 1. Antibacterial properties of transparent sheets

[0053] The antibacterial testing method for the transparent sheets used in the preparation examples and comparative examples is briefly described below: First, the transparent sheets were sterilized by irradiating both sides with ultraviolet light for 5 minutes each. The front side of the transparent sheet refers to the side from which the bacterial count will be measured in subsequent experiments. Next, the transparent sheet was placed face up in a culture dish containing bacterial suspension and cultured at 37°C for 24 hours, with a bacterial concentration of 2.5 × 10⁻⁶. 5 Colony-forming units (CFU) / mL to 10.0 × 10⁻⁶ 5 CFU / mL.

[0054] Then, remove the transparent sheet and remove any visible liquid. Wash the transparent sheet twice, drain the liquid from the surface, and soak it in phosphate-buffered saline (PBS) for 5 minutes during the washing process, then remove the PBS. Next, use 10 mL of lecithin and Tween... ® The front side of the test slide was rinsed with 80% soybean casein digest lecithin polysorbate (SCDLP) to obtain rinsing solution. 1 mL of the rinsing solution was spread onto culture agar, and after incubation at 37°C for 24 hours, the percentage of colony counts on the culture agar of the preparation example (i.e., N1) was calculated to be the same as the percentage of colony counts on the culture agar of the comparative example (i.e., N2) [i.e., (N1 / N2) × 100%], to obtain the relative bacterial count percentage of the preparation example. The difference between 100% and the relative bacterial count percentage of the preparation example [i.e., 100% - (N1 / N2) × 100%] was calculated to obtain the relative antibacterial rate. It should be noted that the bacteria mentioned above include *Escherichia coli*, and culture agar is well known to those skilled in the art, and will not be described further here.

[0055] The relative antibacterial rates of the unwashed preparation examples and comparative preparation examples can be obtained using the above method, and are recorded in Table 1. As shown in Table 1, the relative antibacterial rate of the transparent sheets in the preparation examples is greater than 80%, indicating that they possess antibacterial properties.

[0056] 2. Antibacterial properties of transparent sheets after washing

[0057] The transparent sheets of the preparation examples and the comparative preparation examples were soaked in water 30 times and then subjected to the above antibacterial test to obtain the relative antibacterial rate of the preparation examples and the comparative preparation examples in the water-washed group. The results are recorded in Table 1. As shown in Table 1, compared with the unwashed group, the relative antibacterial rate of the preparation examples in the water-washed group increased (94.3%), indicating good antibacterial properties and confirming that the transparent sheets of the preparation examples are waterproof.

[0058] 3. Evaluate the anti-fog properties and transparency of the transparent sheet.

[0059] The transparency and anti-fogging properties of the transparent sheets prepared in the preparation examples and comparative examples were evaluated. The transparency was evaluated by placing the transparent sheet on a white paper with a pattern, and then observing through the transparent sheet whether the pattern was clear, whether the color saturation was reduced, and / or whether the white background was white. "○" indicates that the edge of the pattern is clear, the color saturation remains unchanged, and the white background is white, while "╳" indicates that the edge of the pattern is blurred, the saturation of the pattern is reduced, and / or the white background is beige or yellow.

[0060] The method for evaluating anti-fogging performance is to place a beaker of 50°C warm water on a white paper with a pattern, and then place a transparent sheet on the beaker for 1 minute. After that, observe the clarity of the pattern on the paper through the transparent sheet. "○" indicates that the pattern is clear, and "╳" indicates that the pattern is blurry.

[0061] As shown in Table 1, the transparent sheets from both the prepared examples and the comparative examples exhibit excellent transparency. Furthermore, the transparent sheets from the prepared examples demonstrate good anti-fogging properties, while the transparent sheets from the comparative examples show poor anti-fogging performance.

[0062] Table 1

[0063]

[0064] As can be seen from the above, the antibacterial and anti-fog display coating composition, its manufacturing method, and the transparent sheet and automotive display containing it of the present invention have the advantage that the antibacterial and anti-fog display coating composition obtained by performing a polymerization step on the dual-ion polymer and emulsifier, after being coated on the substrate, forms a transparent sheet with transparency, antibacterial properties, anti-fog properties, and waterproof properties, thereby ensuring that the automotive display can still operate in the most severe environment and extending the service life of the transparent sheet.

[0065] While the present invention has been disclosed above with reference to several specific embodiments, various modifications, alterations, and substitutions can be made to the foregoing disclosure. It should be understood that, without departing from the spirit and scope of the invention, certain features of the embodiments of the invention may be used in some cases, but other features may not be used accordingly. Therefore, the spirit and scope of the invention should not be limited to the embodiments described above.

[0066] [Symbol Explanation]

[0067] 100: Manufacturing Method

[0068] 110, 130, 150: Steps.

Claims

1. A method for manufacturing an antibacterial and anti-fog display coating composition, characterized in that, Include: Provide starting materials, wherein the starting materials comprise: A dual-ionic polymer solution comprising a dual-ionic polymer and a co-solvent, wherein the dual-ionic polymer comprises the AU described in formula (1). m BU n Block copolymers, random copolymers, or alternating copolymers, (1) In AU expression (1), -CR 1 R 2 - The divalent methylene group with substituents shown, BU represents -CR in formula (1) 4 HCH2CR 5 H- represents a divalent propyl group with substituents, where m represents an integer from 5 to 120, and n represents an integer from 5 to 120. The R... 1 Indicates a straight-chain, branched, or cyclic alkyl or aromatic group having 3 to 18 carbon atoms, a heteroaryl group having 5 to 12 carbon atoms, or -COOR x , where R x R represents a straight-chain, branched, or cyclic alkyl group, aryl group, or heteroaryl group having 3 to 18 carbon atoms. 2 For hydrogen atoms or methyl groups, the R 4 The R group is a carboxyl group. 5 The co-solvent is cationic and selected from the group consisting of saturated physiological saline, methanol, ethanol, and the above-mentioned components. The content of the starting material is 100% by weight, the content of the diionic polymer is 1% to 5% by weight, and the content of the co-solvent is 10% to 15% by weight. An emulsifier comprising at least one double bond, wherein the content of the emulsifier based on the starting material is 100% by weight, and the content of the emulsifier is greater than 15% by weight and less than or equal to 25% by weight. A thermal polymerization initiator, wherein the content of the starting material is 100% by weight, and the content of the thermal polymerization initiator is 0.1% to 0.3% by weight; and Balanced amount of water; and The starting material was polymerized at 55°C to 65°C to obtain the antibacterial and antifog display coating composition.

2. The method for manufacturing the antibacterial and anti-fog display coating composition according to claim 1, characterized in that, The cationic group is N,N-dimethylammonium ethylamino vinyl, N,N-dimethylammonium propylamino vinyl, N,N-dimethylammonium butylamino vinyl, or N,N-dimethylammonium pentylamino vinyl.

3. The method for manufacturing the antibacterial and anti-fog display coating composition according to claim 1, characterized in that, The emulsifier contains polyoxyethylene sorbitan monooleate and / or sorbitol monooleate.

4. The method for manufacturing the antibacterial and anti-fog display coating composition according to claim 1, characterized in that, The thermal polymerization initiator includes 2,2'-azobisisobutyronitrile, 2,2'-azobis-2-methylbutyronitrile, 2,2'-azobis(2-methylpropionic acid) dimethyl ester and / or 4,4'-azobis-4-cyanopentanoic acid.

5. A composition for an antibacterial and anti-fog display coating, characterized in that, It is produced by the manufacturing method described in any one of claims 1 to 4.

6. A transparent sheet material with antibacterial and anti-fogging properties, characterized in that, It includes a substrate and a coating layer, wherein the coating layer is disposed on the surface of the substrate, and the coating layer is formed using the antibacterial and antifog display coating composition according to claim 5.

7. The antibacterial and anti-fogging transparent sheet according to claim 6, characterized in that, The transparent sheet does not fog up after being placed in hot water at 45°C to 55°C for 30 to 90 seconds.

8. The antibacterial and anti-fogging transparent sheet according to claim 6, characterized in that, The relative antibacterial rate of the surface of the transparent sheet relative to the surface of the substrate is at least 80%.

9. A vehicle display, characterized in that, It includes the transparent sheet according to any one of claims 6 to 8.

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