KR101784709B1 - Mutifunctional coating structure and forming method for the same - Google Patents

Abstract

The present invention provides a multi-functional coating structure capable of exhibiting antimicrobial activity while improving the durability, reliability and corrosion resistance of the antistatic coating layer by forming an antimicrobial layer between the coating target product and the antistatic coating layer, and a method of forming the antistatic coating layer.
To this end, the coating structure formed on the surface of the product according to one aspect of the present invention comprises: an antibacterial layer formed on the surface of the product; And a silver coating layer formed on the antibacterial layer.

Description

TECHNICAL FIELD [0001] The present invention relates to a multi-functional coating structure and a method of forming the multi-

The present invention relates to a multifunctional coating structure that simultaneously exhibits antibacterial and antimicrobial properties and a method of forming the same.

The display unit of an electronic product, for example, a TV screen, a monitor screen of a PC or a notebook, a screen of a mobile device such as a mobile phone or a PDA, or a touch panel of an electronic product, And lipids of the face, proteins, etc., and cosmetics are attached to the surface, and the dirt becomes conspicuous and becomes dirty even in the eyes.

Cosmetics, oil, and fingernails attached to the screen or the touch panel with such heat generation can cause pathogenic bacteria and provide a good breeding environment, which can cause diseases such as E. coli and Staphylococcus, as well as skin troubles.

Conventionally, a method of forming a coating film containing water repellent or oil-repellent fluorine on the surface thereof or forming a water-repellent silicone resin framework or a translucent coating layer has been introduced.

Conventionally, AG (Anti-Glare) coating, IF (Invisible-Fingerprint) coating and AF (Anti-Fingerprint) coating have been mainly used as a method of forming the inner fingerprint coating layer. First, the AG coating is a method to obtain the anti-fingerprint effect by reducing the diffuse reflection by forming fine irregularities on the surface of the panel. IF coating is a method that can prevent the fingerprint by reducing diffuse reflection And AF coating is a method of forming a coating layer on the surface of a panel by a spraying or vapor deposition method for easy cleaning and improving slip feeling. In particular, in the case of IF coating or AF coating, silicon dioxide (SiO 2) is deposited on the surface of a product to be coated by vacuum deposition using an electron beam, and IF and AF coating layers are formed thereon.

However, such a fingerprint coating does not have the function of inhibiting and killing microbes when the surfaces are contaminated with microorganisms.

The present invention provides a multifunctional coating structure in which an antimicrobial layer is formed between a product to be coated and an antimicrobial coating layer, or antimicrobial activity is simultaneously added while maintaining the performance of the antimicrobial coating layer, and a method of forming the same.

According to an aspect of the present invention, a coating structure formed on a surface of an article comprises: an antibacterial layer formed on a surface of the article; And a smectic coating layer formed on the antibacterial layer.

The thickness of the antibacterial layer may be 50 to 400 Å.

Alternatively, the thickness of the antibacterial layer may be 100 to 200 Å.

Also, the composition of the antimicrobial layer may be composed of a hydroxylated inorganic carrier-antimicrobial metal complex.

The inorganic carrier may be selected from zeolites, zirconium phosphates, calcium phosphates, calcium zinc phosphates, ceramics, soluble glass powders, alumina silicones, titanium zeolites, apatites and silicas, Or more.

The antibacterial metal may be one or more selected from the group consisting of silver, zinc, copper, tin, platinum, barium, magnesium, germanium, titanium and calcium.

Alternatively, the composition of the antimicrobial layer may be a complex of an organic carrier and an antibacterial metal having an aminosilane group formed thereon.

The organic carrier may be selected from alginate, pectin, casein, carrageenan, polyacrylic acid, poly (acrylic acid-vinyl alcohol) copolymer, poly (vinylpyrrolidone-acrylic acid) copolymer, maleic acid copolymer, polyvinylsulfate, (DTPA), tetraethylenetriamine (TET), ethylenediamine (EDA), diethylenetriamine (DETA), ethylenediamine tetra Acetic acid (EDTA), dimethylglyoxime, polyaminocarboxylic acid, ethylenethiourea, and iminourea.

The antibacterial metal may be one or more selected from the group consisting of silver, zinc, copper, tin, platinum, barium, magnesium, germanium, titanium and calcium.

In addition, the antimicrobial layer may be formed of a double layer coated with a hydroxylated inorganic carrier-metal complex on the product and then coated with an organic carrier-antimicrobial metal composite having an amino silane group formed thereon.

According to another aspect of the present invention, there is provided an article in which a multi-functional coating structure is formed on a surface, the coating structure comprising: an antibacterial layer formed on a surface of the product; And a silver coating layer formed on the antibacterial layer.

Here, the product includes a display portion for displaying information to a user, and the surface of the product may be a surface of the display portion.

At this time, the thickness of the antibacterial layer may be 50 Å to 400 Å.

Alternatively, the thickness of the antibacterial layer may be in the range of 100 Å to 200 Å.

The composition of the antimicrobial layer may comprise a hydroxylated inorganic carrier-antimicrobial metal complex.

Alternatively, the composition of the antimicrobial layer may include an organic carrier-antimicrobial metal complex having an aminosilane group formed therein.

The antibacterial metal may be one or more selected from the group consisting of silver, zinc, copper, tin, platinum, barium, magnesium, germanium, titanium and calcium.

In addition, the antimicrobial layer may be formed of a double layer coated with a hydroxylated inorganic carrier-metal complex on the product and then coated with an organic carrier-antimicrobial metal composite having an amino silane group formed thereon.

A method for forming a multi-functional coating structure on a surface of an article according to another aspect of the present invention, the method comprising: forming an antimicrobial layer on a surface of the article; And forming a silver coating layer on the antibacterial layer.

At this time, the formation of the antimicrobial layer and the formation of the coating layer may be performed by vacuum deposition.

The thickness of the antibacterial layer may be in the range of 100 Å to 200 Å.

Alternatively, the thickness of the antibacterial layer may be in the range of 100 Å to 200 Å.

The composition of the antimicrobial layer may comprise a hydroxylated inorganic carrier-antimicrobial metal complex.

Alternatively, the composition of the antimicrobial layer may include an organic carrier-antimicrobial metal complex having an aminosilane group formed therein.

The antibacterial metal may be one or more selected from the group consisting of silver, zinc, copper, tin, platinum, barium, magnesium, germanium, titanium and calcium.

In addition, the antimicrobial layer may be formed of a double layer coated with a hydroxylated inorganic carrier-metal complex on the product and then coated with an organic carrier-antimicrobial metal composite having an amino silane group formed thereon.

The coating structure according to one aspect of the present invention and the method of forming the same can improve the durability, reliability and corrosion resistance of the coating layer by forming an antimicrobial layer between the product to be coated and the coating layer, . In other words, the antimicrobial metal with excellent antibacterial power effectively blocks the generation and propagation of parasitic bacteria caused by the user's saliva, air secretion and floating noxious bacteria around the product, so that hygienic product use, skin allergy and trouble It is possible to maximize the satisfaction of the user.

FIG. 1 is a cross-sectional view schematically showing a to-be-coated structure formed on a product surface in a conventional manner.
FIG. 2 is a cross-sectional view schematically showing a to-be-coated structure according to an embodiment of the present invention.
3A shows an example of an antibacterial layer obtained by coating a hydroxylated inorganic carrier-antimicrobial metal complex formed on a substrate.
FIG. 3B shows an example of an antibacterial layer obtained by coating an organic carrier-antimicrobial metal complex formed with an aminosilane group formed on a substrate.
FIG. 4 shows a colony of live Escherichia coli after incubation for 24 hours after inoculation of a sample of the conventional tobacco coating structure of FIG. 1 and a sample of the coating structure of one embodiment of the present invention .
FIG. 5 is a flowchart illustrating a method of forming a coating structure according to an embodiment of the present invention.
6 shows a vacuum deposition process as an example of a dry process of film formation.
FIG. 7 shows examples of the wet process of film formation.
8 is a flowchart of a method of forming a coating structure according to an embodiment of the present invention by a vacuum deposition method.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a cross-sectional view schematically showing a to-be-coated structure formed on a product surface in a conventional manner.

Referring to FIG. 1, a silicon dioxide (SiO ₂ ) layer is coated on the surface of a product and a silver coating layer is formed thereon to protect the product surface and to prevent fingerprints.

The coating of the silicon dioxide layer is intended to improve durability or abrasion resistance through bonding between the silver coating layer and the silicon dioxide layer. However, such an antimicrobial coating has no antibacterial effect that can inhibit and kill bacterial growth when the surface is contaminated with microorganisms.

FIG. 2 is a cross-sectional view schematically illustrating a multi-functional coating structure according to an embodiment of the present invention.

Referring to FIG. 2, the multi-functional coating structure 100 according to an embodiment of the present invention includes an antimicrobial layer formed on the surface of a product to be coated, an antimicrobial layer formed on the antimicrobial layer ). That is, the multi-functional coating structure 100 according to an embodiment of the present invention can provide an antimicrobial layer instead of a silicon dioxide (SiO ₂ ) layer that simply improves the bonding force between the surface of the product and the silver coating composition, The antimicrobial properties as well as the bonding strength between the surface and the coating composition can be exerted.

Here, the product to be coated includes a portable terminal such as a mobile phone and a PDA, a display device such as a TV and a computer monitor, but is not limited thereto. In addition, foreign substances such as fingerprints of a user may be adhered to the user during use, There is no limitation on the kind of the product.

In addition, the surface of the product on which the coating structure is formed includes the surface of the touch screen panel provided on the product, the surface of the display unit such as the LCD and the LED, but the present invention is not limited thereto. Or a coating layer can be formed on the surface.

According to one embodiment, the composition of the antimicrobial layer may comprise a hydroxylated inorganic carrier-antimicrobial metal complex.

Figure 3A shows an antimicrobial layer obtained by coating a hydroxylated inorganic carrier-antimicrobial metal complex formed on a substrate. In Figure 3a, the letter M represents an antimicrobial metal, and hydroxylated silica is shown as an example of a hydroxylated inorganic carrier.

Examples of the inorganic carrier include zeolite, zirconium phosphate, calcium phosphate, calcium zinc phosphate, aluminophosphate, ceramics, soluble glass powder, alumina silicon, titanium zeolite, apatite, silica and carbon nanotubes (CNT) But is not limited to, and can be used as long as it has porosity and can be bonded to the antibacterial metal by ion exchange.

Generally, the inorganic carrier is combined with an antimicrobial metal by ion exchange to form an inorganic carrier-antimicrobial metal complex and is used as an antimicrobial agent. However, if the antimicrobial layer is formed by coating the inorganic carrier-antimicrobial metal on the surface of the product, and the inner fingerprint coating layer is formed on the antimicrobial layer, the bonding force between the antibacterial layer and the inner fingerprint coating layer is weak.

Accordingly, the present inventors have found that when an inorganic carrier is hydroxylated, that is, a hydroxyl group is formed in an inorganic carrier to form an antibacterial layer with a composition containing an inorganic carrier-antimicrobial metal complex, excellent binding is exhibited. Any method of hydroxylation of any inorganic carrier known in the art may be used. As an example of the method of hydroxylating the inorganic carrier, the inorganic carrier and the silica may be stirred and mixed at a weight ratio of 1: 1 and then calcined to obtain the hydroxylated inorganic carrier.

In addition to inorganic carriers that do not contain hydroxyl groups, hydroxyl groups are also hydroxylated to improve the bond between the product and the inner fingerprint coating.

According to another embodiment, the composition of the antimicrobial layer may comprise an organic carrier-antimicrobial metal complex in which the aminosilane group is formed.

FIG. 3B shows an antibacterial layer obtained by coating an organic carrier-antimicrobial metal complex formed with an aminosilane group formed on a substrate. 3B, the letter M represents an antibacterial metal, and a silyl ligand is shown as an example of an organic carrier having an aminosilane group formed therein.

Examples of the organic carrier include alginate, pectin, casein, carrageenan, polyacrylic acid, poly (acrylic acid-vinyl alcohol) copolymer, poly (vinylpyrrolidone-acrylic acid) copolymer, maleic acid copolymer, polyvinylsulfate, poly (DTPA), tetraethylenetriamine (TET), ethylenediamine (EDA), diethylenetriamine (DETA), ethylene (ethylene diamine) Diamine tetraacetic acid (EDTA), dimethylglyoxime, polyaminocarboxylic acid, ethylenethiourea and iminourea, but are not limited thereto.

In general, an organic carrier is used as an antimicrobial agent by forming an organic carrier-antimicrobial metal complex by coordinating with an antimicrobial metal. However, when such an organic carrier-antimicrobial metal is coated on the surface of a product to form an antibacterial layer, there is a problem that it is not bonded to the product surface.

Accordingly, the present inventors have found that an antibacterial layer using an organic carrier-antimicrobial metal composite in which an aminosilane is formed on an organic carrier by modifying an organic carrier to aminosilane exhibits excellent bonding with the product surface.

When the aminosilane group is formed on the organic carrier, the amine group (-NH ₂ ) improves the bonding property with the antibacterial metal through coordination bond with the antibacterial metal, and the silane group improves the bonding property with the product surface such as glass .

The aminosilane group can be formed on the organic carrier by reacting the aminosilane with the organic carrier in a manner known in the art. For example, an aminosilane group may be formed on an organic carrier by mixing an organic carrier and aminosilane at a weight ratio of 1: 1.

Examples of aminosilanes include 3-aminopropyltrimethoxysilane, 3-aminopropyltriethoxysilane, N- (2-aminoethyl) -3-aminopropyltrimethoxysilane, N- ) -3-aminopropyl-methyldimethoxysilane, N- (2-aminoethyl) -3-aminopropyltriethoxysilane and N- (2-aminoethyl) But the present invention is not limited thereto.

There is no limitation on the method of forming the hydroxylated inorganic carrier-metal complex, but as an example, a hydroxylated inorganic carrier is dissolved in purified water to prepare a slurry, which is then treated with a dilute aqueous acid solution to a pH of 5 to 8 , An aqueous solution containing antimicrobial metal ions dissolved therein is slowly injected into the slurry and stirred to effect an ion exchange reaction, and then the slurry is filtered, dried and pulverized to form a hydroxylated inorganic carrier-metal complex.

There is no limitation on the method for forming the organic carrier-antimicrobial metal complex having the aminosilane group formed therein. However, for example, the organic carrier having the aminosilane group formed thereon and the antimicrobial metal are stirred and mixed in water to conduct a coordination reaction, , Followed by pulverization to form an organic carrier-antimicrobial metal complex in which an aminosilane group is formed.

The antimicrobial layer may be formed by coating the product with a hydroxylated inorganic carrier-metal complex on the product, and then coating the organic carrier-antimicrobial metal composite on which the aminosilane group is formed on the inorganic carrier-metal composite layer.

In this case, the coating layer of the hydroxylated inorganic carrier-metal complex can function not only as an antibacterial layer but also as a primer layer of a coating layer of the organic carrier-antimicrobial metal composite.

Examples of the antimicrobial metal forming a complex with an inorganic carrier or an organic carrier include, but are not limited to, silver, zinc, copper, tin, platinum, barium, magnesium, germanium, titanium and calcium. Or preferably the antimicrobial metal can be silver, zinc, copper.

The antimicrobial mechanism of this antimicrobial metal is as follows: (1) the metal ions eluted in the wet atmosphere are combined with the protein of the bacteria to destroy the bacterial cells to inhibit or kill the bacterial growth, and (2) It is conceivable that the dissolved oxygen in the water changes into active oxygen and damages the surface structure of the bacteria. These antimicrobial metals are advantageous because they can sustain the antimicrobial effect during the durability of the product.

When zinc is used as the antibacterial metal, the zinc may be zinc acetate, zinc oxide, zinc carbonate, zinc hydroxide, zinc chloride, zinc sulfate, zinc citrate, zinc fluoride, zinc iodide, zinc lactate, zinc oleate, zinc oxalate Such as zinc phosphate, zinc phosphate, zinc propionate, zinc salicylate, zinc selenate, zinc silicate, zinc stearate, zinc sulfide, zinc tannate, zinc tartrate, zinc valerate, zinc gluconate, Lt; / RTI > Combinations of zinc salts may also be used.

In addition, when copper is used as the antibacterial metal, the copper is at least one selected from the group consisting of copper disodium citrate, copper triethanolamine, copper carbonate, cuprous ammonium carbonate, cuprous hydroxide, cupric chloride, cupric chloride, copper ethylenediamine complex, , Copper oxychloride, copper oxide, copper thiocyanate, and the like. Combinations of these copper salts may also be used.

Also, when silver is used as the antibacterial metal, silver silver nitrate, silver sulfate, silver perchlorate, silver acetate, diamine silver nitrate and diamine may be used in the form of sulfate.

The content of the antibacterial metal in the carrier-antimicrobial metal complex may be 0.05 to 10% by weight. When the content of these metal ions is less than the lower limit, an effective antimicrobial activity can not be obtained. When the content exceeds the upper limit, not only the antimicrobial activity is further improved but also insoluble metal salts are precipitated on the surface of the carrier, It can cause problems.

When the thickness of the antimicrobial layer is less than 50 angstroms, the thickness of the antimicrobial layer is preferably less than 50 angstroms because the uniformity of coating is reduced. Uniformity means that the performance against the strength or deformation of the structure is at about the same level and does not include local weaknesses. When the thickness of the antimicrobial layer exceeds 400 ANGSTROM, the quality of the coating film is lowered and the reliability is lowered, so that the thickness of the antibacterial layer is preferably 400 ANGSTROM or less.

Therefore, in one embodiment of the present invention, the thickness of the antibacterial layer can be set to 50 Å or more and 400 Å or less considering the antibacterial and reliability of the coating structure. When the antibacterial layer has a thickness of 100 Å to 200 Å, A coating structure can be obtained.

Hereinafter, results of measuring the fingerprint effect and the antibacterial effect of the coating structure according to one embodiment of the present invention will be described with reference to Table 1.

An antimicrobial layer containing a hydroxylated zeolite-Ag complex as an example of a hydroxylated inorganic carrier-antimicrobial metal composite on the surface of a product is formed and then coated with a coating structure (A) in which an inner fingerprint coating layer of a silicone series (IF) As an example of an organic carrier-antimicrobial metal complex having a silane group formed therein, an antimicrobial layer containing an EDTA-Ag complex in which an aminosilane group is formed is formed, and then the inside of the coating structure (B) Fingerprint and antibacterial effects were measured. As a control, the fingerprint effect and the antibacterial effect of the inner fingerprint coating layer and the fluorine-based AF fingerprint coating layer formed on the conventional silicon dioxide layer were measured.

In order to explain the fingerprint effect of the coating structure, Table 1 shows the initial contact angle (DI, diiodomethane contact angle, DM) of the coating structure of FIG. 1 and the coating structure of FIG. 2, of The measurement results (35 ° C) and the slip properties (dynamic friction coefficient) were measured.

The contact angle refers to the angle formed by the surface of the solid and the surface of the liquid when the droplet is a droplet that remains on the horizontal solid surface and maintains a constant lens shape, and the size is determined by the type of liquid and solid.

Kinetic Coefficient of Friction is a resistance force corresponding to the force required to move a surface at a constant speed over another surface in contact with it, and is used as a measure of the slipage of the coating film. The coefficient of dynamic friction was measured at 23 ° C and 50% relative humidity.

The antimicrobial activity was measured according to JIS Z 2801 film adhesion method using Escherichia coli coli ) and Staphylococcus aureus ). After inoculation, all specimens were cultured for (24 ± 1) hours at (35 ± 1) ℃ and at relative humidity of 90% or higher. After the bacteria were collected from each specimen, viable cell counts were measured, The eradication rate (%) was calculated.

Control IF A Control AF B Contact angle (DI / DM) 70/45 70/45 115/95 115/95 Slip property (dynamic friction coefficient) 0.4 0.4 0.1 0.1 Antibacterial activity ( E. coli ) Bacterial reduction rate (%) 71.8 > 99.9 62.9 > 99.9 Eradication rate (%) NG > 99.9 NG > 99.9 Antimicrobial activity
( S. aureus )
Bacterial reduction rate (%) 70.90 > 99.9 60.8 > 99.9 Eradication rate (%) NG > 99.9 NG > 99.9

According to Table 1, the coating structures A and B according to one embodiment of the present invention exhibit antimicrobial functions by the antimicrobial layer while maintaining the basic characteristics (initial contact angle and slip property) of the inner fingerprint coating layer, It can be seen that it represents a complex function. In the anti-microbial, was both for E. coli (E. coli) and Staphylococcus aureus (S. aureus) strain disclosure bacteriostatic reduction and eradication rates indicate that at least 99.9% of high antibacterial activity.

FIG. 4 is an image of a colony of living Escherichia coli after 24 hours of incubation for the control AF of Table 1 and the antibacterial AF sample of Coating Structure B according to one embodiment of the present invention, Coating structure according to one embodiment In the case of the antibacterial AF sample, it can be seen that the number of living Escherichia coli is almost 10 or less.

The coating structure according to an embodiment of the present invention includes an antimicrobial layer and an anticorrosive coating layer. As a material of the anticorrosive coating layer, a film containing water repellent or oil-repellent fluorine, which is mainly used as an antistatic film, A skeleton-containing coating, or the like may be employed, but not limited thereto, and various coating materials may be used depending on the use of the product.

In the present invention, the term " emotion " includes both the property of preventing the fingerprint from being buried, and the property of preventing the fingerprint from being visible even when the fingerprint is smoothed or the fingerprint is buried.

The fluorine compound has a very low surface energy of about 5 to 6 dyne / cm and exhibits water repellency, oil repellency, chemical resistance, lubricity, releasability and antifouling properties.

Silicone compounds have a low surface tension due to small intermolecular attractive force, and are easy to spread on the surface of a substrate, and are excellent in water repellency.

Further, in order to improve water repellency and oil repellency, a silicone compound and a fluorine compound may be mixed and used.

Hereinafter, a method of forming a coating structure according to an embodiment of the present invention will be described.

FIG. 5 is a flowchart illustrating a method of forming a coating structure according to an embodiment of the present invention.

Referring to FIG. 5, a method of forming a coating structure according to an embodiment of the present invention includes forming an antibacterial layer on a surface of a product to be coated (210), and forming a green coating layer on the antibacterial layer (211) .

Hereinafter, the formation method of each layer will be described in detail.

FIG. 6 shows a vacuum deposition process as an example of a film formation dry process, and FIG. 7 shows examples of a wet process of film formation.

Referring to FIG. 6, a vacuum deposition process may be employed as a dry process for forming a film on a display portion of an electronic product, a touch panel, or the like.

Vacuum deposition refers to the evaporation of a metal or compound in a vacuum to form a thin film on a surface facing the evaporation source. In the vacuum deposition process, a jig is installed in a vacuum chamber, a substrate to be coated on the jig is set to face downward, a coating solution is applied to the bottom of the chamber facing the substrate, And the coating solution is evaporated by applying heat or an electron beam to the water tank, the evaporated coating solution is deposited on the surface of the substrate mounted on the jig to form a coating film.

Referring to FIG. 7, a dipping coating, a spin coating, and a spray coating may be applied as a wet process for thinning a coating composition present in a solution state on a substrate surface of an electronic product.

Dipping coating is mainly used when a substrate having an irregular surface is coated as a method of dipping a substrate of an electronic product in a coating solution for a predetermined time and then dipping the substrate to evaporate the solvent component. An immersion coating method can be applied according to the substrate of the product.

Spin coating is a method of spraying a coating solution onto a rotating substrate, followed by drying and heat treatment to form a coating, which is mainly used when a thin coating is formed. Spin coating is a method in which a spin-coater rotates an object so that the liquid put on the object is pushed out by the centrifugal force. The material used as the coating material may be dissolved in a solvent or may exist in a liquid state Material.

Spray coating is a method of spraying a coating solution through a spray nozzle when the viscosity of the coating solution is low. The coating can be uniformly formed even when the surface of the substrate is irregular or irregular, and is mainly applied to only one side of the substrate The advantage is that a smaller amount of coating solution is used than the dip coating and the energy required to evaporate is also reduced.

The coating structure according to the present invention is most suitably coated by a vacuum deposition method, but it is also possible to apply a dry process or a wet process other than the vacuum deposition.

Hereinafter, a method of forming a coating structure according to an embodiment of the present invention by a vacuum deposition method will be described in detail.

8 is a flowchart of a method of forming a coating structure according to an embodiment of the present invention by a vacuum deposition method.

Referring to FIG. 8, foreign matter, dust, and the like attached to the surface of the product to be coated are first removed (310). At this time, an argon (Ar) plasma cleaning method or an ionization air blowing method may be used. When an ion gun is used in a state where a product to be coated is placed on a jig and the product is fixed using a magnet, foreign matter or moisture adhered to the surface of the product is sufficiently removed and the surface of the product is activated. Then, the product in which the foreign substance is removed is mounted in the vacuum chamber, and the deposition conditions such as the position of the crucible and the deposition thickness are set.

When an inorganic carrier-an antimicrobial metal complex or an aminosilane group formed on a crucible-an organic carrier formed with an antimicrobial metal complex (hereinafter referred to as an antimicrobial complex) and a vacuum evaporator are put in operation, the electron beam strikes the antimicrobial complex and vaporizes the antimicrobial complex 311 ). The vaporized antimicrobial complex is deposited on the surface of the product to form an antimicrobial layer (312). The deposition thickness of the antibacterial layer may be 50 to 400 ANGSTROM, or preferably 100 to 200 ANGSTROM.

When the formation of the antimicrobial layer is completed, the antimicrobial layer is deposited on the antimicrobial layer (313) and the antimicrobial layer composition is vaporized (313) (314). The acrylic coating composition may be an AF coating composition such as a fluorine-based silicone or a silicone-based coating composition. The IF coating composition such as the fluorine-based silicone and the silicone-based coating composition described above may also be used. It is not limited to the example.

Claims (22)

A coating structure formed on a surface of a product,
An antibacterial layer formed on the surface of the product; And
And an antimicrobial layer formed on the antimicrobial layer,
Wherein the antimicrobial layer comprises a bilayer that forms a hydroxylated inorganic carrier-antimicrobial metal complex layer on the surface of the article and then forms a composite layer of an organic carrier and an antimicrobial metal having an aminosilane group formed thereon. The method according to claim 1,
Wherein the composition of the antimicrobial layer comprises a hydroxylated inorganic carrier-antimicrobial metal complex. The method according to claim 1,
Wherein the inorganic carrier is selected from zeolite, zirconium phosphate, calcium phosphate, calcium zinc phosphate, ceramic, soluble glass powder, alumina silicone, titanium zeolite, apatite, silica. The method according to claim 1,
Wherein the antibacterial metal is one or more selected from the group consisting of silver, zinc, copper, tin, platinum, barium, magnesium, germanium, titanium and calcium. The method according to claim 1,
Wherein the composition of the antimicrobial layer comprises a complex of an organic carrier and an antibacterial metal having an aminosilane group formed thereon. The method according to claim 1,
The organic carrier may be selected from the group consisting of alginate, pectin, casein, carrageenan, polyacrylic acid, poly (acrylic acid-vinyl alcohol) copolymer, poly (vinylpyrrolidone- acrylic acid) copolymer, maleic acid copolymer, polyvinylsulfate, (DTPA), tetraethylenetriamine (TET), ethylenediamine (EDA), diethylenetriamine (DETA), ethylenediamine tetraacetic acid (EDTA), dimethylglyoxime, polyaminocarboxylic acid, ethylenethiourea, and iminourea. The method according to claim 1,
Wherein the antibacterial layer has a thickness of 50 to 400 ANGSTROM. The method according to claim 1,
Wherein the antibacterial layer has a thickness of 100 to 200 ANGSTROM. In products in which a multi-functional coating structure is formed on the surface,
The coating structure comprises:
An antibacterial layer formed on the surface of the product; And
And an antimicrobial layer formed on the antimicrobial layer,
Wherein the antimicrobial layer comprises a bilayer that forms a hydroxylated inorganic carrier-antimicrobial metal complex layer on the surface of the article and then forms a composite layer of the organic carrier and the antimicrobial metal on which the aminosilane groups are formed. 10. The method of claim 9,
The product includes a display unit for displaying information to a user,
Wherein a surface of the product is a surface of the display portion. 10. The method of claim 9,
Wherein the composition of the antimicrobial layer comprises a hydroxylated inorganic carrier-antimicrobial metal complex. 10. The method of claim 9,
Wherein the composition of the antimicrobial layer comprises an organic carrier-antimicrobial metal complex having an aminosilane group formed therein. 10. The method of claim 9,
Wherein the antibacterial metal is one or more selected from the group consisting of silver, zinc, copper, tin, platinum, barium, magnesium, germanium, titanium and calcium. 10. The method of claim 9,
Wherein the antimicrobial layer has a thickness of 50 Å to 400 Å. 10. The method of claim 9,
Wherein the antibacterial layer has a thickness of 100 to 200 ANGSTROM. A method of forming a multi-functional coating structure on a surface of an article,
Forming an antimicrobial layer on the surface of the product;
And forming a silver coating layer on the antibacterial layer,
Wherein the antimicrobial layer comprises a bilayer that forms a hydroxylated inorganic carrier-antimicrobial metal complex layer on the surface of the product and then forms a composite layer of the organic carrier and the antimicrobial metal on which the aminosilane group is formed. 17. The method of claim 16,
Wherein the antimicrobial layer is formed and the coating layer is formed by vacuum evaporation. 17. The method of claim 16,
Wherein the composition of the antimicrobial layer comprises a hydroxylated inorganic carrier-antimicrobial metal complex. 17. The method of claim 16,
Wherein the composition of the antimicrobial layer comprises an organic carrier-antimicrobial metal complex having an aminosilane group formed therein. 17. The method of claim 16,
Wherein the antibacterial metal is one or more selected from the group consisting of silver, zinc, copper, tin, platinum, barium, magnesium, germanium, titanium and calcium. 17. The method of claim 16,
Wherein the thickness of the antibacterial layer is 50 to 400 ANGSTROM. 17. The method of claim 16,
Wherein the thickness of the antimicrobial layer is 100 to 200 Angstroms.

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