JP6871223B2 - Antiviral member - Google Patents

Description

The present invention relates to antiviral member.

In recent years, so-called "pandemics", in which infectious diseases mediated by various microorganisms that are pathogens spread rapidly in a short time, have become a problem, such as SARS (Severe Acute Respiratory Syndrome), norovirus, and bird flu. Deaths from viral infections have also been reported.

Therefore, antiviral agents that exert antiviral activity against various viruses are being actively developed, and antivirals composed of metals such as Pd and organic compounds that actually have antiviral activity on various substrates. Resins and the like containing agents are applied, and members containing materials carrying antiviral agents are manufactured. In particular, there are many industrial products made of the base material itself or a base material having a polyurethane resin on the surface, and its application range is wide.

Patent Document 1 discloses a method for producing a member having antiviral and antibacterial properties by forming a film containing a quaternary ammonium salt on a film obtained by modifying a resin such as urethane with acrylic as an intermediate layer. Has been done.

Japanese Patent No. 5871258

However, in Patent Document 1, since the surface of the base material is covered with a uniform antibacterial / protective layer film, the coefficient of thermal expansion of the base material itself is affected by the load of residual stress and the fluctuation of the outside air temperature and the surrounding environment. There is a problem that it is not possible to provide an antiviral member having high adhesion due to cracks and peeling of the surface coating caused by the difference in the coefficient of thermal expansion of the antibacterial / protective layer.

The present invention has been made in view of such a problem, and has a high antimicrobial activity, a region in which a cured binder containing an antimicrobial component is fixedly formed on the surface of a substrate made of a polyurethane resin, and the above binder. By forming discontinuous regions in which regions where no cured product is not formed are mixed, cracks in the surface film can be caused by differences in the surrounding environment due to heat or pressure, deformation or expansion of the base material, etc. It is an object of the present invention to provide an antimicrobial member having high adhesion, which does not cause peeling or swelling and does not reduce antimicrobial activity.

In the antimicrobial member of the present invention, a cured binder containing an antimicrobial component is fixedly formed on the surface of a base material made of polyurethane resin, and the cured binder is dispersed in an island shape and fixed to the surface of the base material. Or, it is characterized in that a region in which the binder cured product is formed and a region in which the binder cured product is not formed are provided in a mixed manner on the surface of the base material.

The antimicrobial component in the antimicrobial member of the present invention is a concept including antiviral, antibacterial, antifungal, and antifungal. Therefore, the antimicrobial component is a concept including an antiviral component, an antibacterial component, an antifungal component, and an antifungal component, and the antimicrobial agent includes an antiviral agent, an antibacterial agent, an antifungal agent, and an antifungal agent. It is a concept, and the antimicrobial composition is a concept including an antiviral composition, an antibacterial composition, an antifungal composition, and an antifungal composition.

In the present specification, the antimicrobial member may be a member exhibiting any one of antiviral, antibacterial, antifungal and antifungal activity, and among antiviral, antibacterial, antifungal and antifungal members. , A member exhibiting any two types of activity, a member exhibiting any three types of activity, or a member exhibiting all four types of activity.
Among the antimicrobial properties of the antimicrobial member of the present invention, it is particularly effective for antiviral and antifungal, and the antiviral has the highest activity.

In the antimicrobial member of the present invention, a cured binder containing an antimicrobial component is fixedly formed on the surface of a base material made of polyurethane resin (hereinafter, also simply referred to as the surface of the base material), and the cured binder is formed into an island shape. The base material is dispersed and fixed to the surface of the base material, or a region in which the cured binder is formed and a region in which the cured binder is not formed are mixed and provided on the surface of the base material. Concavities and convexities composed of a cured product composed of antimicrobial components are formed on the surface. For this reason, the total surface area of the cured binder containing the antimicrobial component is larger than that in the case where the cured binder is formed into a film, so that the probability of contact with microorganisms such as viruses is increased, and viruses and the like are not present. Since microorganisms can be trapped between the cured binders, high antimicrobial activity can be obtained. In addition, it is possible to suppress the residual stress of the cured binder and the stress generated during the thermal cycle, and the cured binder has high adhesion to the substrate and is not easily peeled off from the substrate. Therefore, it is possible to provide a more reliable anti-microbial member that does not cause peeling or cracking due to differences in thermal stress, etc., as compared with the antiviral / antibacterial member that is homogeneously coated on the above-mentioned base material. Is. Further, the cured binder product can disperse the stress generated at the interface with the base material due to the deformation or expansion of the base material, and does not cause peeling or swelling. Therefore, the cured binder product exhibiting antimicrobial activity. Does not fall off, and the problem of a decrease in antimicrobial activity caused by the high water absorption rate of polyurethane as a base material made of polyurethane can be solved.

In the present specification, it is desirable that the binder cured product covers 10% or more and 95% or less of the surface of the base material, and the binder cured product forming region on which the binder cured product is formed and the binder cured product are formed. It suffices as long as it is in a state in which there is no binder cured product non-formed region and the same. That is, the binder cured product is fixedly formed on the surface of the base material so as to expose a part of the surface of the base material. The binder cured product may be formed in an island shape, or the binder cured product is formed in a film shape, and a region in which the binder cured product is not formed is mixed in the region where the film of the binder cured product is formed. It may be in the state of being provided.

The island shape means that the cured binder on the surface of the base material exists in an isolated state so as not to come into contact with other cured binders. The shape of the hardened binder scattered in an island shape is not particularly limited, and when the contour is viewed in a plan view, it may be a shape composed of curves such as a circle and an ellipse, and a shape such as a polygon. It may be in the shape of a circle, an ellipse, or the like connected to each other through a thin portion, or it may be in the shape of an amoeba. In addition, the islands may be adjacent to each other without being intricately in contact with each other.
Further, the binder cured product is formed in a film shape, and a binder cured product in a state in which a region in which the cured product is not formed is mixed in the formed region of the film-shaped binder cured product and an island-shaped cured product. The hardened binder formed in the above may be mixed.

In the antimicrobial member of the present invention, it is desirable that the binder cured product contains at least one selected from the group consisting of an inorganic antimicrobial agent and an organic antimicrobial agent as the antimicrobial component.

In the antimicrobial member of the present invention, it is definitely high if the cured binder contains at least one selected from the group consisting of an inorganic antimicrobial agent and an organic antimicrobial agent as the antimicrobial component. It is possible to realize an antimicrobial member having antimicrobial activity.

In the antimicrobial member of the present invention, as the inorganic antimicrobial agent, a metal oxide catalyst in which silver, copper, zinc, platinum, zinc compound, silver compound, copper compound, titanium, tungsten, metal or metal oxide is supported. It is also possible to use particles of a metal oxide or metal hydrate containing at least one metal selected from a zeolite ion-exchanged with a metal ion, a copper complex, and the like. Specific examples of the inorganic antimicrobial agent include copper (I) oxide (copper oxide), copper (II) oxide, copper (II) carbonate, copper (II) hydroxide, copper (II) chloride, and nano. Alumina carrying at least one of silver and copper, silica carrying at least one of nanosilver and copper, zinc oxide carrying at least one of nanosilver and copper, nanosilver and at least one of copper were carried. Examples thereof include inorganic particles such as titanium oxide or calcium phosphate in which at least one of tungsten oxide, nanosilver and copper is supported. Zeolites that have been exchanged for at least one of the silver and copper ions may be further exchanged for other metal ions such as zinc ions. Further, the inorganic antimicrobial agent of the present invention is preferably a copper complex.

In the antimicrobial member of the present invention, the inorganic antimicrobial agent is a silver, copper, zinc, platinum, zinc compound, a silver compound, a copper compound, a metal oxide catalyst carrying a metal or a metal oxide, or a metal ion. It is desirable that it is at least one selected from the group consisting of an ion-exchanged zeolite and a copper complex.
In the antimicrobial member of the present invention, the inorganic antimicrobial agent is a metal oxide catalyst or metal ion carrying silver, copper, zinc, platinum, zinc compound, silver compound, copper compound, metal or metal oxide. When at least one selected from the group consisting of ion-exchanged zeolite and a copper complex, the antimicrobial agent can be in the form of particles, and the inorganic antimicrobial agent is exposed from the cured binder. It is an antimicrobial member that is easy to use and has higher antimicrobial activity.

In the antimicrobial member of the present invention, the organic antimicrobial agent is at least one selected from the group consisting of an antimicrobial resin, a sulfonic acid-based surfactant, a copper alkoxide, and a bis-type quaternary ammonium salt. Is desirable.

In the antimicrobial member of the present invention, the organic antimicrobial agent is at least one selected from the group consisting of an antimicrobial resin, a sulfonic acid-based surfactant, a copper alkoxide, and a bis-type quaternary ammonium salt. Then, the organic antimicrobial agent easily spreads over the entire binder cured product, and becomes an antimicrobial member having high antimicrobial activity.

In the antimicrobial member of the present invention, it is desirable that the cured binder contains at least one cured product selected from an organic binder, an inorganic binder and an organic / inorganic hybrid binder. An organometallic compound can be used as the binder of the organic / inorganic hybrid.
It is desirable that the organic binder is at least one selected from the group consisting of thermosetting resins and electromagnetic wave curable resins.

In the antimicrobial member of the present invention, it is desirable that the thermosetting resin is at least one selected from the group consisting of epoxy resin, polyimide resin, and melamine resin. The electromagnetic wave curable resin is preferably at least one selected from the group consisting of acrylic resin, urethane acrylate resin, polyether resin, polyester resin, epoxy resin, and alkyd resin.

In the antimicrobial member of the present invention, the electromagnetic wave curable resin is at least one selected from the group consisting of acrylic resin, urethane acrylate resin, polyether resin, polyester resin, epoxy resin, and alkyd resin. The cured binder has not only transparency but also excellent adhesion to the substrate.

In the antimicrobial member of the present invention, it is desirable that the inorganic binder is at least one selected from the group consisting of silica sol, alumina sol, titania sol, zirconia sol and sodium silicate.

In the antimicrobial member of the present invention, when the inorganic binder is at least one selected from the group consisting of silica sol, alumina sol, titania sol, zirconia sol and sodium silicate, water is dispersed according to the type of antimicrobial component. A sol or the like used as a medium or a sol using an organic solvent as a dispersion medium can be used properly, and a binder cured product in which antimicrobial components are well dispersed can be formed.

In the antimicrobial member of the present invention, the maximum width of the cured binder in the direction parallel to the substrate surface is 0.1 to 500 μm, and the average thickness thereof is 0.1 to 20 μm. desirable.

In the antimicrobial member of the present invention, by setting the maximum width of the binder cured product in the direction parallel to the surface of the base material to 0.1 to 500 μm, the surface of the base material is not covered with the binder cured product. Even when a design or the like having a predetermined pattern is formed on the surface of the base material, it is possible to prevent the appearance and aesthetic appearance of the design or the like from being spoiled.

In the antimicrobial member of the present invention, it is technically difficult to form a binder cured product having a maximum width of less than 0.1 μm in a direction parallel to the surface of the binder cured product, and the binder cured product. The coverage of the surface of the base material is also lowered, and the antimicrobial activity is lowered. On the other hand, if the maximum width of the cured binder product in the direction parallel to the surface of the base material exceeds 500 μm, the size of one cured binder product becomes too large, and a design or the like having a predetermined pattern is formed on the surface of the base material. If this is the case, the cured binder obstructs the design and the like, making it difficult to see the design and the like, and the appearance and appearance of the design and the like are impaired.

In the antimicrobial member of the present invention, when the average value of the thickness of the cured binder is 0.1 to 20 μm, the thickness of the cured binder is thin, so that it is difficult to form a continuous layer of the cured binder, and the cured binder is formed. It is easy to make it in a state where the binder cured product is scattered in an island shape or the binder cured product is formed in a film shape and a region in which the binder cured product is not formed is mixed and provided in the region where the binder cured product is formed. Therefore, it is possible to prevent the appearance and aesthetic appearance of the design and the like from being impaired, and it is possible to obtain high antimicrobial activity.

In the antimicrobial member of the present invention, it is technically difficult to form a binder cured product having an average thickness of less than 0.1 μm, and the coverage of the surface of the binder cured product on the substrate surface is also lowered. Microbial activity is reduced. On the other hand, if the average thickness of the cured binder material exceeds 20 μm, the cured binder product is too thick. Therefore, if a design or the like having a predetermined pattern is formed on the surface of the base material, the cured binder product interferes with the design or the like. Is hard to see, and the appearance and aesthetics of the design etc. are spoiled.

In the antimicrobial member of the present invention, the arithmetic mean roughness (Ra) of the surface containing the binder cured product of the base material on which the binder cured product containing the antimicrobial component is fixed is 0 in accordance with JIS B 0601. .1 to 5 μm is desirable.

In the antimicrobial member of the present invention, the arithmetic average roughness (Ra) of the surface containing the binder cured product of the base material on which the binder cured product containing the antimicrobial component is adhered to the surface is based on JIS B 0601. If it is 0.1 to 5 μm, the surface area and unevenness of the surface of the base material containing the cured binder will be in an appropriate range, the probability of contact between microorganisms such as viruses and antimicrobial components will increase, and the unevenness of the surface will increase. Microorganisms such as viruses are likely to be trapped in the valley, and as a result, microorganisms such as viruses are likely to be inactivated.

In the antimicrobial member of the present invention, when the binder cured product is scattered in an island shape, the island-shaped binder cured product is 0.05 × 10 ⁸ to 30 × 10 ^{8 per square meter of the surface of the base material.} It is desirable to exist.

In the antimicrobial member of the present invention, when the cured binder is scattered in an island shape, the cured binder in the island shape is 0.05 × 10 ⁸ to 30 × 10 ^{8 per square meter of the surface of the base material.} If there are individual binders, the size of the cured binder is set appropriately, and it is possible to prevent the appearance and aesthetics of the design, etc. formed on the surface of the base material from being spoiled, and per unit carrying amount. It is an antimicrobial member with high antimicrobial activity.

The antimicrobial member of the present invention is preferably an antiviral member.
The antimicrobial member of the present invention has antiviral, antibacterial, antifungal and antifungal properties, with antiviral having the highest activity.

The handle of the present invention is a handle whose surface is made of a polyurethane resin, and a cured binder containing an antimicrobial component is fixedly formed on the surface of the polyurethane resin constituting the handle, and the cured binder is island-shaped. It is characterized in that it is dispersed in the base material and fixed to the surface of the base material, or a region in which the cured binder is formed and a region in which the cured binder is not formed are mixed and provided on the surface of the base material. And.
By fixing and forming a cured binder containing an antimicrobial component on the surface of the handle, it is possible to inactivate microorganisms such as viruses attached to the handle, so that humans who touch the handle are infected with microorganisms such as viruses. It can be prevented from doing so. In addition, even if a person who possesses a microorganism such as a virus touches the handle, the hardened binder containing an antimicrobial component can inactivate the microorganism such as a virus, and the person who touches the handle next can receive the virus or the like. It is possible to prevent the transmission of these microorganisms. In addition, the cured binder containing an antimicrobial component has excellent adhesion to the handle, so that it does not fall off even if it is touched by human hands one after another or if it is wiped clean.

The handrail of the present invention is a handrail whose surface is made of a polyurethane resin, and a binder cured product containing an antimicrobial component is fixedly formed on the surface of the polyurethane resin constituting the handrail, and the binder cured product is island-shaped. It is characterized in that it is dispersed in the base material and fixed to the surface of the base material, or a region in which the cured binder is formed and a region in which the cured binder is not formed are mixed and provided on the surface of the base material. And.
By fixing and forming a cured binder containing an antimicrobial component on the surface of the handrail, it is possible to inactivate microorganisms such as viruses attached to the handrail, so that humans who touch the handrail are infected with microorganisms such as viruses. It can be prevented from doing so. In addition, even if a person who possesses a microorganism such as a virus touches the handrail, the hardened binder containing an antimicrobial component can inactivate the microorganism such as the virus, and then the person who touches the handrail will be exposed to the virus or the like. It is possible to prevent the transmission of these microorganisms. In addition, the cured binder containing an antimicrobial component has excellent adhesion to the handrail, so that it does not fall off even if it is touched by human hands one after another or if it is wiped clean.

The chair armrest of the present invention is a chair armrest whose surface is made of polyurethane resin, and a binder cured product containing an antimicrobial component is fixedly formed on the surface of the polyurethane resin constituting the chair armrest. The cured product is dispersed in an island shape and fixed to the surface of the base material, or a region in which the cured binder is formed and a region in which the cured binder is not formed are mixed and provided on the surface of the base material. It is characterized by being made.
Since a hardened binder containing an antimicrobial component is fixedly formed on the surface of the chair accoudoir, microorganisms such as viruses adhering to the chair accoudoir can be inactivated, so that a person who touches the chair accoudoir can use it. It is possible to prevent the infection of microorganisms such as viruses. In addition, even if a person carrying a microorganism such as a virus touches the armrest of a chair, the hardened binder containing an antimicrobial component can inactivate the microorganism such as a virus, and then the person who touches the armrest of the chair. In addition, it is possible to prevent the transmission of microorganisms such as viruses. In addition, the hardened binder containing an antimicrobial component has excellent adhesion to the elbow rest of the chair, so that it does not fall off even if it is touched by human hands or elbows one after another, or even if it is wiped clean.

The table edge of the present invention is a table edge whose surface is made of a polyurethane resin, and a binder cured product containing an antimicrobial component is fixedly formed on the surface of the polyurethane resin constituting the table edge, and the binder cured product is formed. , The region is dispersed in an island shape and fixed to the surface of the base material, or the region where the cured binder is formed and the region where the cured binder is not formed are mixed and provided on the surface of the base material. It is characterized by that.
Since a cured binder containing an antimicrobial component is fixedly formed on the surface of the table edge, microorganisms such as viruses adhering to the table edge can be inactivated. It is possible to prevent the infection of microorganisms. In addition, even if a person carrying a microorganism such as a virus touches the table edge, the cured product of the binder containing an antimicrobial component can inactivate the microorganism such as a virus, and then the person who touches the table edge can use it. It is possible to prevent the transmission of microorganisms such as viruses. In addition, the cured binder containing an antimicrobial component has excellent adhesion to the table edge, so that it does not fall off even if it is touched by human hands one after another or if it is wiped clean.

FIG. 1 is a plan view schematically showing an embodiment of the antimicrobial member of the present invention. FIG. 2A is a sectional view schematically showing another embodiment of the antimicrobial member of the present invention, and FIG. 2B is a sectional view of the antimicrobial member shown in FIG. 2A. Is. FIG. 3 is an optical micrograph showing the antimicrobial member obtained in Example 1. FIG. 4A is a cross-sectional view schematically showing an embodiment of the handle of the present invention, and FIG. 4B is a perspective view of the handle shown in FIG. 4A. 5 (a) is a perspective view schematically showing an embodiment of the handrail of the present invention, and FIG. 5 (b) is a sectional view taken along line AA of the handrail shown in FIG. 5 (a). , FIG. 5 (c) is a perspective view schematically showing another embodiment of the handrail of the present invention. FIG. 6A is a perspective view schematically showing an embodiment of the chair armrest of the present invention, and FIG. 6B is a B of the chair armrest of the present invention shown in FIG. 6A. −B sectional view. 7 (a) is a perspective view schematically showing an embodiment of the table edge of the present invention, and FIG. 7 (b) is a side view of the table edge of the present invention shown in FIG. 7 (a). is there.

(Detailed description of the invention)
Hereinafter, the antimicrobial member of the present invention will be described in detail.
In the antimicrobial member of the present invention, a cured binder containing an antimicrobial component is fixedly formed on the surface of a base material made of polyurethane resin, and the cured binder is dispersed in an island shape and fixed to the surface of the base material. Or, it is characterized in that a region in which the cured binder is formed and a region in which the cured binder is not formed are provided on the surface of the base material in a mixed manner.
In the present invention, it is desirable that the cured binder covers 10% or more and 95% or less of the surface of the base material.

FIG. 1 is a plan view schematically showing an embodiment of the antimicrobial member of the present invention.

As shown in FIG. 1, in the antimicrobial member 10 of the present invention, the binder cured product is provided on the surface of the base material 11 in the film forming region 12 in which the binder cured product of the antimicrobial agent is formed in a film shape. There is no film non-forming region 13 in a mixed state.

FIG. 2A is a sectional view schematically showing another embodiment of the antimicrobial member of the present invention, and FIG. 2B is a sectional view of the antimicrobial member shown in FIG. 2A. Is.
In the antimicrobial member 20 of the present invention shown in FIGS. 2A and 2B, an antimicrobial binder cured product 22 is formed in an island shape on the surface of the base material 21.

In the antimicrobial member of the present invention, a cured binder containing an antimicrobial component is fixedly formed on the surface of the base material, and the cured binder is dispersed in an island shape and fixed to the surface of the base material. Since the region where the cured binder is formed and the region where the cured binder is not formed are provided on the surface of the base material in a mixed manner, the surface of the base material has irregularities composed of the cured product composed of antimicrobial components. Is formed. For this reason, the total surface area of the cured binder containing the antimicrobial component is larger than that in the case where the cured binder is formed into a film, so that the probability of contact with microorganisms such as viruses is increased, and viruses and the like are not present. Since microorganisms can be trapped between the cured binders, high antimicrobial activity can be obtained. Further, it is possible to suppress the residual stress of the binder cured product and the stress generated during the thermal cycle, and the binder cured product has high adhesion to the base material and is not easily peeled off from the base material. Therefore, it is possible to provide a more reliable anti-microbial member that does not cause peeling or cracking due to differences in thermal stress, etc., as compared with the antiviral / antibacterial member that is homogeneously coated on the above-mentioned base material. Is. Further, the cured binder product can disperse the stress generated at the interface with the base material due to the deformation or expansion of the base material, and does not cause peeling or swelling. Therefore, the cured binder product exhibiting antimicrobial activity. Can solve the problem of a decrease in antimicrobial activity caused by the high water absorption rate of polyurethane as a base material made of polyurethane.

The material of the base material constituting the antimicrobial member of the present invention is a polyurethane resin. Further, even if the inside of the base material is metal, pottery, wood, or the like, the base material may be a base material whose surface is coated with polyurethane resin.
The polyurethane resin is not particularly limited as long as it has a urethane bond, and examples thereof include ether-based polyurethane resin, ester-based polyurethane resin, acrylic-based polyurethane resin, and carbonate-based polyurethane resin, and these may be used alone. May be used in combination of two or more.
Further, the polyethylene resin may contain inorganic fine particles such as silica, talc, calcium carbonate, glass, and barium sulfate.

Further, the product application of the polyurethane resin base material constituting the antimicrobial member of the present invention is not particularly limited, and is used in facilities such as general houses, shops, public facilities, factories, parks, trains, passenger cars, etc. It can be applied to all uses such as handles, handles, handrails, chair armrests, and table edges that are frequently installed in vehicle facilities. It also includes vehicle parts such as passenger car interiors and Shinkansen seats, heat insulating materials used for exterior walls of houses, apartments and factories, and cushioning materials such as chairs, sofas and beds that use polyurethane resin in some parts. ..

The surface of the polyurethane resin base material constituting the antimicrobial member of the present invention may be colored or decorated for surface protection and design improvement by a method such as printing or painting. As described above, the present invention is based on the effect exhibited because the binder cured product forming region in which the binder cured product is formed and the binder cured product non-forming region in which the binder cured product is not formed coexist. It is not related to the interaction between the cured product and its interface (polyurethane resin surface, coated surface).

In the antimicrobial member of the present invention, it is desirable that the cured binder contains at least one selected from the group consisting of an inorganic antimicrobial agent and an organic antimicrobial agent as the antimicrobial component.
The binder cured product may contain only one type of the above-mentioned inorganic antimicrobial agent, or may contain two or more types of the above-mentioned inorganic antimicrobial agent, and the above-mentioned organic antimicrobial agent. May be contained in only one kind, or two or more kinds of organic antimicrobial agents may be contained. Further, the binder cured product may contain two or more kinds of the inorganic antimicrobial agent and the organic antimicrobial agent.

Further, in the antimicrobial member of the present invention, the inorganic antimicrobial agent is a metal oxide catalyst or metal in which silver, copper, zinc, platinum, zinc compound, silver compound, copper compound, metal or metal oxide is supported. It is desirable that it is at least one selected from the group consisting of an ion-exchanged zeolite and a copper complex.

Examples of the inorganic antimicrobial agent contained in the cured binder include a metal composed of at least one of silver, copper, zinc and platinum.
The cured binder may contain silver, copper, zinc and platinum particles alone, and may contain two or more kinds of metal particles among silver, copper, zinc and platinum. For example, metal particles of an alloy containing at least two of silver, copper, zinc and platinum may be fixed.

Examples of the inorganic antimicrobial agent contained in the cured binder include copper carboxylate, copper complex, copper hydroxide, copper oxide, and water-soluble inorganic salt of copper. Examples include copper compounds.
As the carboxylic acid salt of copper, an ionic compound of copper can be used, and examples thereof include copper acetate, copper benzoate, and copper phthalate.
As the water-soluble inorganic salt of copper, an ionic compound of copper can be used, and examples thereof include copper nitrate and copper sulfate.
Examples of other copper compounds include copper (methoxydo), copper ethoxydo, copper propoxide, copper butoxide, and examples of the covalent bond compound of copper include copper oxide and copper hydroxide. .. Copper carboxylate and copper hydroxide have high affinity with organic binders and inorganic binders, and are not eluted with water, so they have excellent water resistance.
Examples of the copper complex include a complex of acetylacetone and copper, a complex of β-diketone such as 5-methyl-2,4-hexanedione and copper, copper (I) (1-butanthiolate), and copper ( I) (Hexafluoropentandionate cyclooctadiene) and the like can be mentioned.
As the water-soluble inorganic salt of copper, an ionic compound of copper can be used, and examples thereof include copper (II) nitrate and copper (II) sulfate.
Examples of other copper compounds include copper (II) (methoxydo), copper (II) ethoxydo, copper (II) propoxide, copper (II) butoxide, and the like, and examples of the covalent bond compound of copper include copper. Examples include oxides and hydroxides of copper.

As a metal oxide catalyst in which the metal or metal oxide contained in the cured binder is supported, for example, platinum group such as platinum, palladium, rhodium, ruthenium, silver, copper or the like is supported on titanium oxide or the like. Examples include metal. Specific examples of the metal oxide catalyst carrying a metal or metal oxide include a platinum-supported titania catalyst, a copper-supported titania catalyst, a silver-supported titania catalyst, a platinum-supported nitrogen-doped titania catalyst, and a platinum-supported sulfur-doped titania catalyst. , Carbon-doped titanium dioxide catalyst, copper-supported titanium oxide catalyst, silver-supported titanium oxide catalyst, and other visible light-responsive photocatalysts. Examples of the copper-supported titania catalyst include CuO described in JP-A-2006-232729. Anatase-type titanium oxide containing copper in the range of / TiO ₂ (% by weight) = 1.0 to 3.5, and cuprous oxide (copper (I) oxide (I): Cu) described in JP2012-210557A. _A photocatalyst composition in which 2O) and titanium oxide are composited, titanium oxide having a surface containing a mixture containing a monovalent copper compound and a divalent copper compound described in JP2013-166705, and international publication. Examples thereof include copper and titanium-containing compositions containing titanium oxide containing crystalline rutyl-type titanium oxide and a divalent copper compound described in No. 2013/094573.

Further, as the inorganic antimicrobial agent, particles of a metal oxide or a metal hydrate containing at least one metal selected from silver, copper, zinc, titanium, tungsten and the like can also be used. Specific examples of the inorganic antimicrobial agent include, for example, copper (I) oxide (copper oxide), copper (II) oxide, copper (II) carbonate, copper (II) hydroxide, copper (II) chloride, and silver. At least one of the exchanged zeolite, nanosilver and copper of at least one of the ions and copper ions, alumina with at least one of the nanosilver and copper, silica with at least one of the nanosilver and copper, and at least one of the nanosilver and copper were supported. Examples thereof include titanium oxide in which at least one of zinc oxide, nanosilver and copper is supported, or inorganic particles such as tungsten oxide, calcium phosphate in which at least one of nanosilver and copper is supported. Zeolites that have been exchanged for at least one of the silver and copper ions may be further exchanged for other metal ions such as zinc ions. Further, the inorganic antimicrobial agent of the present invention is preferably a copper complex.

In the antimicrobial member of the present invention, the organic antimicrobial agent is at least one selected from the group consisting of an antimicrobial resin, a sulfonic acid-based surfactant, a copper alkoxide, and a bis-type quaternary ammonium salt. Is desirable.

In the anti-microbial member of the present invention, examples of the organic anti-microbial agent include halocarban, chlorophenesine, lysozyme chloride, alkyldiaminoethylglycine hydrochloride, isopropylmethylphenol, timol, hexachlorophene, velverine, tioxolone, salicylic acid and Derivatives of them, benzoic acid, sodium benzoate, paraoxybenzoic acid ester, parachlormethacresol, benzalkonium chloride, phenoxyethanol, isopropylmethylphenol, phenolic acid, sorbic acid, potassium sorbate, hexachlorophene, chlorhexidine chloride, trichlorocarbani Lido, thiantol, hinokithiol, triclosan, trichlorohydroxydiphenyl ether, chlorhexidine phenolate, phenoxyethanol, resorcin, azulene, salicylic acid, zincpyrythion, mononitroguayacol sodium, uikyo extract, sansho extract, cetylpyridinium chloride, benzethonium chloride and undecylene acid derivatives, Examples thereof include alkylbenzene sulfonic acid or a salt thereof. Of these, alkylbenzene sulfonic acid or a salt thereof is preferable.

In the antimicrobial member of the present invention, the antimicrobial resin comprises an acidic functional group and a resin substrate. Examples of the acidic functional group include a sulfonic acid group, a phosphoric acid group, a carboxyl group, a hydroxyl group, a nitro group and the like. Of these, a sulfonic acid group, a phosphoric acid group, and a carboxyl group are preferable.

The resin substrate is preferably a polymer of a monomer having a vinyl group.
Since the polymer of the monomer having a vinyl group is synthesized by addition polymerization, there is no by-product such as water, and a highly transparent antimicrobial resin can be obtained. Therefore, the influence on the design of the base material can be reduced.

The monomer having a vinyl group is preferably one or more monomers selected from styrene, methacrylic acid, methacrylic acid ester, divinylbenzene, and trivinylbenzene.
Styrene, methacrylic acid, methacrylic acid ester, divinylbenzene, and trivinylbenzene can provide an antimicrobial resin having particularly high transparency. Further, divinylbenzene and trivinylbenzene can be crosslinked by adding them to a monomer to form a three-dimensional network structure. By forming a three-dimensional network structure, it becomes difficult to disassemble and durability can be increased.

In the antimicrobial member of the present invention, the antimicrobial resin composed of the acidic functional group and the resin substrate is not particularly limited, but for example, the cation exchange resin may be used as it is or after being pulverized by pulverization. Can be done. The cation exchange resin also has an acidic functional group on the resin substrate, and can be used as the antimicrobial resin of the present invention.

Examples of the bis-type quaternary ammonium salt include a bis-type pyridinium salt represented by the following general formula (1), a bis-type quinolinium salt, and a bis-type thiazolium salt compound represented by the following general formula (2). desirable.

（上記一般式（１）中、Ｒ^１及びＲ^２は、同一または異なっていてもよいアルキル基、Ｒ^３はエーテル結合を含んでもよい有機基であり、Ｘ⁻は、ハロゲン陰イオンを示す。）

(In the above general formula (1), R ¹ and R ² are alkyl groups which may be the same or different, R ³ is an organic group which may contain an ether bond, and X ⁻ represents a halogen anion. )

（上記一般式（２）中、Ｒ^４は、官能基を有してもよいアルキル基を表し、Ｒ^５、Ｒ^６、Ｒ^７、Ｒ^８、Ｒ^９及びＲ^１０は、アルキル基を表す。）

(In the above general formula (2), R ⁴ represents an alkyl group which may have a functional group, and R ⁵ , R ⁶ , R ⁷ , R ⁸ , R ⁹ and R ¹⁰ represent an alkyl group. )

First, the bis-type pyridinium salt represented by the general formula (1) will be described.
In the bis-type pyridinium salt represented by the general formula (1), examples of ^{X − include Cl −} , Br ⁻ , I ^{− and the} like.
R ¹ and R ² are preferably an alkyl group having 1 to 20 carbon atoms, and the alkyl group may have a side chain.
In the above general formula (1), the ^{organic group represented by R 3} is -CO-O- (CH ₂ ) _6- O-CO-, -CONH- (CH ₂ ) _6- CO-, -NH-CO. -(CH ₂ ) _4- CO-NH-, -S-Ph-S-, -CONH-Ph-NHCO-, -NHCO-Ph-CONH-, _{-O- (CH 2} ) _6- O- or -CH ^{It is desirable that it is represented by 2-} O- (CH ₂ ) _4- O-CH _2- (where Ph represents a phenylene group).

上記一般式（３）中、Ｒ^１１は、Ｃ_ｎＨ_２ｎ＋１で表されるアルキル基であり、ｎは、８、１０、１２、１４、１６または１８が望ましい。また、ｍは、３、４、６、８、１０が望ましい。以下に示す化合物の置換基Ｒ^１１についても、同様である。 Specifically, examples of the bis-type pyridinium salt include those represented by the following general formulas (3) to (10).

In the above general formula (3), R ¹¹ is _{an alkyl group represented by C n} H _{2n + 1} , and n is preferably 8, 10, 12, 14, 16 or 18. Further, m is preferably 3, 4, 6, 8 and 10. Substituents R ¹¹ of the compound shown below is also the same.

Further, as the bis-type pyridinium salt, 1,1'-didecyl-3,3'-[butane-1,4-diylbis (oxymethylene)] dipyridinium = dibromid represented by the following general formula (11). Is particularly desirable.

Next, the bis-type thiazolium salt will be described.
Further, examples of the bis-type thiazolium salt include bis-type thiazolium salts represented by the following general formula (12).

Next, the bis-type quinolinium salt will be described.
As the bis-type quinolinium salt, a pyridinium group represented by the following general formula (13) constituting the bis-type pyridinium salt represented by the general formulas (3) to (10) is used in the general formula (14). Examples thereof include a bis-type quinolinium salt having a chemical structure substituted with the quinolium group shown in. In the above bis-type quinolinium salt, other substituents and the like are the same as those of the bis-type pyridinium salt represented by the general formulas (3) to (10).

上記一般式（２）中、Ｒ^４は、官能基を有してもよいアルキル基を示す。アルキル基は、側鎖を有してもよく、その炭素数は、１〜２０が望ましい。上記官能基としては、ヒドロキシル基、アルデヒド基、カルボキシル基、シアノ基、ニトロ基、アミノ基、エーテル基等が挙げられる。また、Ｒ^５、Ｒ^６、Ｒ^７、Ｒ^８、Ｒ^９及びＲ^１０は、アルキル基を表し、上記アルキル基は、側鎖を有してもよく、その炭素数は、１〜２０が望ましい。 Further, the compound represented by the general formula (2) used in the present invention will be described.

In the above general formula (2), R ⁴ represents an alkyl group which may have a functional group. The alkyl group may have a side chain, and the number of carbon atoms thereof is preferably 1 to 20. Examples of the functional group include a hydroxyl group, an aldehyde group, a carboxyl group, a cyano group, a nitro group, an amino group and an ether group. Further, R ⁵ , R ⁶ , R ⁷ , R ⁸ , R ⁹ and R ¹⁰ represent an alkyl group, and the above alkyl group may have a side chain, and the number of carbon atoms thereof is preferably 1 to 20. ..

Examples of the compound represented by the general formula (2) include 2,3-bis (hexadecyldimethylammonium bromide) -1-propanol and the like.

In the antimicrobial member of the present invention, it is desirable that the cured binder is an organic binder, an inorganic binder, an organic / inorganic hybrid binder and / or a cured product of an electromagnetically curable resin. An organometallic compound can be used as the binder of the organic / inorganic hybrid.
In the antimicrobial member of the present invention, as the antimicrobial component, at least one selected from the group consisting of an inorganic antimicrobial agent and an organic antimicrobial agent, and an organic binder, an inorganic binder, and an organic / inorganic hybrid which are binders. A binder cured product can be obtained by curing a mixture of the binder and at least one of the electromagnetic curable resins.

Next, a cured product of the electromagnetic wave curable resin in the antimicrobial member of the present invention will be described.
After forming droplets on the surface of the substrate using an antimicrobial composition containing a monomer or oligomer which is an uncured electromagnetically curable resin, a polymerization initiator, various additives, and an antimicrobial component, the substrate is irradiated with electromagnetic waves. As a result, the polymerization initiator causes reactions such as cleavage reaction, hydrogen abstraction reaction, and electron transfer, and the photoradical molecule, photocation molecule, photoanion molecule, etc. generated by this cause the monomer and the oligomer to attack the monomer. And the polymerization reaction and the cross-linking reaction of the oligomer proceed, and a binder cured product containing an anti-microbial component is formed. The resin constituting the binder cured product of the present invention produced by such a reaction is called an electromagnetic wave curable resin.
In the present invention, the polymerization initiator can be used as a reducing agent for copper. Therefore, a polymerization initiator may be added to the antimicrobial composition consisting of an inorganic binder, a copper compound and a dispersion medium. The polymerization initiator is preferably a photopolymerization initiator. Copper (II) can be reduced to copper (I) with a polymerization initiator. Copper (I) has higher antimicrobial performance than copper (II).

As such an electromagnetic curable resin, at least one selected from the group consisting of, for example, acrylic resin, urethane acrylate resin, polyether resin, polyester resin, epoxy resin, and alkyd resin is desirable.

Examples of the acrylic resin include epoxy-modified acrylate resin, urethane acrylate resin (urethane-modified acrylate resin), and silicone-modified acrylate resin.
Examples of the polyester resin include polyethylene terephthalate (PET) and polybutylene terephthalate (PBT).

Examples of the epoxy resin include an alicyclic epoxy resin, an alicyclic epoxy resin, a glycidyl ether type epoxy resin, and an oxetane resin in combination.
Examples of the alkyd resin include polyester alkyd resin and the like.
These resins have transparency and are also excellent in adhesion to a base material.

Next, the cured product of the inorganic binder in the antimicrobial member of the present invention will be described.
Binder curing containing antimicrobial component is performed by mixing an inorganic binder, an antimicrobial component and, if necessary, various additives and dispersion media to form droplets on the surface of a substrate using an antimicrobial composition, and then drying the mixture. An object (a cured product of an inorganic binder) is formed.

When the droplets are isolated and adhere to the surface of the base material, the hardened binder becomes island-like, and when the droplets are superimposed on the surface of the base material and adhere, the hardened binder becomes a film, and the hardened binder becomes hardened with the binder. The form is a mixture of a product-forming region and a non-forming region in which a binder cured product is not formed. This also applies to the electromagnetic wave curable resin described above.

The inorganic binder is preferably at least one selected from the group consisting of silica sol, alumina sol, titania sol, zirconia sol and sodium silicate. The content ratio of the inorganic oxide such as silica in the above-mentioned inorganic binder is preferably 2 to 80% by weight in terms of solid content.
Since there are two types of the above-mentioned inorganic binders, one using water and the other using an organic solvent as the dispersion medium, the inorganic binder can be selected in consideration of the type of the antimicrobial component to be added, and the antimicrobial component can be selected. The above-mentioned antimicrobial composition in which is uniformly dispersed can be obtained.

In the antimicrobial member of the present invention, the maximum width of the cured binder in the direction parallel to the substrate surface is 0.1 to 500 μm, and the average thickness thereof is 0.1 to 20 μm. desirable.

In the antimicrobial member of the present invention, when the average value of the thickness of the cured binder is 0.1 to 20 μm, the thickness of the cured binder is thin, so that it is difficult to form a continuous layer of the cured binder, and the cured binder is formed. It is easy to make it in a state where the binder cured product is scattered in an island shape or the binder cured product is formed in a film shape and a region in which the binder cured product is not formed is mixed and provided in the region where the binder cured product is formed. Therefore, it is possible to prevent the appearance and aesthetic appearance of the design and the like from being impaired, and it is possible to obtain high antimicrobial activity.

In the antimicrobial member of the present invention, it is technically difficult to form a binder cured product having an average thickness of less than 0.1 μm, and the coverage of the surface of the binder cured product on the substrate surface is also lowered. Microbial activity is reduced. On the other hand, if the average thickness of the cured binder material exceeds 20 μm, the cured binder product is too thick. Therefore, if a design or the like having a predetermined pattern is formed on the surface of the base material, the cured binder product interferes with the design or the like. Is hard to see, and the appearance and aesthetics of the design etc. are spoiled.

Further, in the antimicrobial member of the present invention, the surface of the binder cured product is covered with the binder cured product by setting the maximum width of the binder cured product in the direction parallel to the surface of the base material to 0.1 to 500 μm. It is possible to appropriately maintain the proportion of the non-existent portion, and even when a design or the like having a predetermined pattern is formed on the surface of the base material, it is possible to prevent the appearance and aesthetic appearance of the design or the like from being impaired.

In the antimicrobial member of the present invention, it is technically difficult to form a binder cured product having a maximum width of less than 0.1 μm in a direction parallel to the surface of the binder cured product, and the binder cured product. The coverage of the surface of the base material is also lowered, and the antimicrobial activity is lowered. On the other hand, if the maximum width of the cured binder product in the direction parallel to the surface of the base material exceeds 500 μm, the size of one cured binder product becomes too large, and a design or the like having a predetermined pattern is formed on the surface of the base material. If this is the case, the cured binder obstructs the design and the like, making it difficult to see the design and the like, and the appearance and appearance of the design and the like are impaired.

The maximum width in the direction parallel to the surface of the substrate of the cured binder and the average value of the thickness can be measured by using a scanning microscope or a laser microscope.
Specifically, by using a scanning microscope or a laser microscope equipped with image analysis / image measurement software, or by using an image analysis / image measurement software to analyze an image obtained by the scanning microscope or a laser microscope. By performing the above, the maximum width in the direction parallel to the surface of the substrate of the cured binder and the average value of the thickness can be obtained.

In the antimicrobial member of the present invention, the arithmetic mean roughness (Ra) of the surface containing the binder cured product of the base material on which the binder cured product containing the antimicrobial component is fixed is 0 in accordance with JIS B 0601. .1 to 5 μm is desirable.
The arithmetic mean roughness (Ra) can be obtained by measuring with a measurement length of 8 mm using HANDYSURF, which is a contact type surface roughness measuring machine manufactured by Tokyo Seimitsu Co., Ltd.

In the antimicrobial member of the present invention, the arithmetic average roughness (Ra) of the surface containing the binder cured product of the base material on which the binder cured product containing the antimicrobial component is adhered to the surface is based on JIS B 0601. If it is 0.1 to 5 μm, the surface area of the substrate surface containing the cured binder is in an appropriate range, the probability of contact between microorganisms such as viruses and antimicrobial components is high, and the valleys of surface irregularities are high. , Microorganisms such as viruses are easily trapped, and as a result, microorganisms such as viruses are easily inactivated.

In the antimicrobial member of the present invention, when the cured binders are scattered in an island shape, the cured binders in the island shape are 0.05 × 10 ⁸ to 30 × 10 ^{8 per square meter of the surface of the base material.} It is desirable to exist.

In the antimicrobial member of the present invention, when the cured binder is scattered in an island shape, the cured binder in the island shape is 0.05 × 10 ⁸ to 30 × 10 ^{8 per square meter of the surface of the base material.} If there are individual binders, the size of the cured binder is set appropriately, and it is possible to prevent the appearance and aesthetics of the design, etc. formed on the surface of the base material from being spoiled, and per unit carrying amount. It is an antimicrobial member with high antimicrobial activity.

According to the antimicrobial member of the present invention, for example, the pattern, color, design, color tone, etc. formed on the surface of the handle, handle, handrail, chair accoudoir, table edge, etc. inside the building are not changed. An antimicrobial function can be added.

Next, the method for producing the above-mentioned antimicrobial member will be described.
When producing the antimicrobial member, first, a spraying step of spraying an antimicrobial composition containing an antimicrobial component, an uncured binder, a dispersion medium and a polymerization initiator is performed on the surface of the base material, followed by a spraying step. If necessary, the antimicrobial composition sprayed by the spraying step is dried to remove the dispersion medium, and finally, in the antimicrobial composition from which the dispersion medium is removed in the drying step. The curing step of curing the above-mentioned uncured binder is performed so that the cured binder containing an antimicrobial component adheres to the surface of the substrate and the cured binder exposes a part of the surface of the substrate. A coated antimicrobial member can be obtained. The binder may be cured at the same time as drying.

(1) Spraying Step When producing the antimicrobial member of the present invention, first, as a spraying step, an antimicrobial component, an uncured binder, a dispersion medium, and a polymerization initiator are applied to the surface of a substrate made of a polyurethane resin. The antimicrobial composition containing the above is sprayed.

Examples of the antimicrobial component include at least one selected from the group consisting of inorganic antimicrobial agents and organic antimicrobial agents.
The inorganic antimicrobial agents include silver, copper, zinc, platinum, zinc compounds, silver compounds, copper compounds, metal oxide catalysts carrying metals or metal oxides, zeolite ion-exchanged with metal ions, and It is desirable that the organic antimicrobial agent is at least one selected from the group consisting of copper complexes, and the organic antimicrobial agent is an antimicrobial resin, a sulfonic acid-based surfactant, a copper alkoxide, and a bis-type quaternary ammonium. It is desirable that it be at least one selected from the group consisting of salts.

The binder comprises at least one selected from an organic binder, an inorganic binder and an organic / inorganic hybrid binder, and the organic binder is at least one selected from the group consisting of a thermosetting resin and an electromagnetic wave curable resin. It is desirable to have.

The thermosetting resin is preferably at least one selected from the group consisting of epoxy resin, polyimide resin, and melamine resin. The electromagnetic wave curable resin is preferably at least one selected from the group consisting of acrylic resin, urethane acrylate resin, polyether resin, polyester resin, epoxy resin, and alkyd resin.

The inorganic binder is preferably at least one selected from the group consisting of silica sol, alumina sol, titania sol, zirconia sol and sodium silicate.

The type of the dispersion medium is not particularly limited, but it is preferable to use alcohols or water in consideration of stability. Examples of alcohols include alcohols such as methyl alcohol, ethyl alcohol, n-propyl alcohol, isopropyl alcohol, n-butyl alcohol, isobutyl alcohol, and sec-butyl alcohol in consideration of lowering the viscosity. Among these alcohols, methyl alcohol and ethyl alcohol, which do not easily increase in viscosity, are preferable, and a mixed solution of alcohol and water is preferable.

Specifically, the polymerization initiator is preferably at least one selected from the group consisting of an alkylphenone type, a benzophenone type, an acylphosphine oxide type, an intramolecular hydrogen abstraction type, and an oxime ester type. The polymerization initiator is used to reduce the copper compound. When an electromagnetic wave curable resin is used as a binder, it has a function of polymerizing monomers and oligomers.

Examples of the alkylphenone-based polymerization initiator include 2,2-dimethoxy-1,2-diphenylethane-1-one, 1-hydroxy-cyclohexyl-phenyl-ketone, and 2-hydroxy-2-methyl-1-. Phenyl-propane-1-one, 1- [4- (2-hydroxyethoxy) -phenyl] -2-hydroxy-2-methyl-1-propane-1-one, 2-hirodoxy-1- {4- [4] -(2-Hydroxy-2-methyl-propionyl) -benzyl] phenyl} -2-methyl-propane-1-one, 2-methyl-1- (4-methylthiophenyl) -2-morpholinopropane-1-one , 2-Benzyl-2-dimethylamino-1- (4-morpholinophenyl) -butanone-1,2- (dimethylamino) -2-[(4-methylphenyl) methyl] -1- [4- (4) -Morhonyl) phenyl] -1-butanone and the like.

Examples of the acylphosphine oxide-based polymerization initiator include 2,4,6-trimethylbenzoyl-diphenyl-phosphine oxide, bis (2,4,6-trimethylbenzoyl) -phenylphosphine oxide and the like.

Examples of the intramolecular hydrogen abstraction type polymerization initiator include phenylglycilic acid methyl ester, oxyphenyl succinate, 2- [2-oxo-2-phenylacetoxyethoxy] ethyl ester tooxyphenylacetic acid and 2- (2). Examples thereof include a mixture with −hydroxyethoxy) ethyl ester.

Examples of the oxime ester-based polymerization initiator include 1.2-octanedione, 1- [4- (phenylthio)-, 2- (O-benzoyloxime)], etanone, 1- [9-ethyl-6-. (2-Methylbenzoyl) -9H-carbazole-3-yl]-, 1- (0-acetyloxime) and the like can be mentioned.

The content ratio of the antimicrobial component in the antimicrobial composition is preferably 2 to 30% by weight, the content ratio of the uncured binder is preferably 15 to 60% by weight, and the content ratio of the dispersion medium is 30 to 80%. Weight% is desirable. In this case, the content ratio of the inorganic oxide such as silica in the antimicrobial composition is 5 to 20% by weight.

If necessary, the antimicrobial composition may contain an ultraviolet absorber, an antioxidant, a light stabilizer, an adhesion accelerator, a rheology adjuster, a leveling agent, an antifoaming agent and the like.

When preparing the above antimicrobial composition, after adding the antimicrobial component, the monomer or oligomer and the polymerization initiator to the dispersion medium, the mixture is sufficiently stirred with a mixer or the like to polymerize the antimicrobial component, the uncured binder and the like. It is desirable to make a composition in which the initiator is dispersed at a uniform concentration, and then spray the composition.

As used herein, spraying refers to adhering the antimicrobial composition to the surface of a substrate in a divided state.
Examples of the spraying method include a spray method, a two-fluid spray method, an electrostatic spray method, an aerosol method and the like.

In the present invention, the spray method is a method of spraying an antimicrobial composition in a mist state using a gas such as high-pressure air or mechanical motion (finger, piezo element, etc.), and the antimicrobial composition on the surface of the substrate. Adhering droplets of an object.
In the present invention, the two-fluid spray method is a kind of spray method, in which a gas such as high-pressure air and an antimicrobial composition are mixed and then sprayed from a nozzle in a mist state to the surface of the base material. Adhering droplets of microbial composition.
In the present invention, the electrostatic spray method is a spraying method using a charged antimicrobial composition, in which the antimicrobial composition is sprayed in a mist state by the above spray method, but the antimicrobial composition is atomized. There are a gun type in which the antimicrobial composition is sprayed with a sprayer and an electrostatic atomization method using the repulsion of the charged antimicrobial composition, and the gun type is further charged. There are a method of spraying the antimicrobial composition and a method of applying a charge to the sprayed atomized antimicrobial composition by corona discharge from an external electrode. Since the mist-like droplets are charged, they easily adhere to the surface of the base material, and the antimicrobial composition can be satisfactorily adhered to the surface of the base material in a finely divided state.
In the present invention, the aerosol method is a method of spraying a mist of a physically and chemically produced antimicrobial composition containing a metal compound onto an object.

By the above spraying step, the antimicrobial composition containing the antimicrobial component, the uncured binder, the dispersion medium and the polymerization initiator is superposed on the surface of the substrate in an isolated state or with a part of the surface of the substrate exposed. It will be in a state of being attached.

(2) Drying Step The antimicrobial composition containing the antimicrobial component sprayed on the surface of the substrate by the spraying step, the uncured binder, the dispersion medium and the polymerization initiator is dried, and the dispersion medium is evaporated and removed. The cured binder containing the antimicrobial component can be temporarily fixed to the surface of the substrate, and the cured binder can be shrunk to expose the antimicrobial component from the surface of the cured binder.
In the case of an antimicrobial composition consisting of an inorganic binder, a copper compound, a dispersion medium and a polymerization initiator added as needed, the inorganic binder is cured by removing the dispersion medium by drying. In the case of this antimicrobial composition, the drying step and the curing step proceed at the same time.
The drying conditions are preferably 60 to 100 ° C. and 0.5 to 5.0 minutes.

(3) Curing Step When producing the anti-microbial member, as a curing step, the monomer or oligomer which is the uncured electromagnetically curable resin in the anti-microbial composition from which the dispersion medium has been removed in the drying step is used. The uncured binder is cured by irradiating it with an electromagnetic wave to obtain a cured binder.
In the method for producing an antimicrobial member of the present invention, when the uncured binder is an electromagnetic wave curable resin, the electromagnetic wave to be irradiated for curing is not particularly limited, and for example, ultraviolet rays (UV), infrared rays, and visible rays. Examples thereof include light rays, microwaves, and electron beams (EB). Among these, ultraviolet rays (UV) are preferable.
By these steps, the cured binder containing an antimicrobial component adheres to the surface of the substrate, and the cured binder is coated so as to expose a part of the surface of the substrate. Antimicrobial member can be produced.

Further, the electromagnetic wave has a function of exciting the photopolymerization initiator and reducing the copper compound. Therefore, copper (II) can be reduced to increase the amount of copper (I) to increase the antimicrobial activity.
In the anti-microbial member of the present invention, the copper is calculated by measuring the binding energies corresponding to Cu (I) and Cu (II) in the range of 925 to 955 eV for 5 minutes by X-ray photoelectron spectroscopic analysis. The ratio of the number of ions of Cu (I) and Cu (II) contained in the compound (Cu (I) / Cu (II)) is preferably 0.5 to 50.
Further, since the copper of Cu (I) is superior to the copper of Cu (II) in anti-microorganism, the first anti-microbial member of the present invention is subjected to 925 to 955 eV by X-ray photoelectron spectroscopic analysis. The number of ions of Cu (I) and Cu (II) contained in the copper compound calculated by measuring the binding energy corresponding to Cu (I) and Cu (II) in the range of 5 minutes. When the ratio (Cu (I) / Cu (II)) of (Cu (I) / Cu (II)) is 1.0 to 4.0, the anti-microbial member is more excellent in anti-microorganism.

The coverage of the cured binder on the substrate surface can be determined by controlling the concentration of the antimicrobial component in the antimicrobial composition, the concentration of the dispersion medium, the spraying pressure, the ejection speed of the coating liquid, the spraying time, and the like. , Can be adjusted. When spraying using a spray gun, the coverage of the cured binder can be adjusted by changing the air pressure of the spray gun, the spray coating width, the moving speed of the spray gun, the spraying speed of the coating liquid, and the coating distance.

As an application example of the antimicrobial member of the present invention, an embodiment of a handle in FIG. 4, a handrail in FIG. 5, an armrest of a chair in FIG. 6, and a table edge in FIG. 7 is shown. The present invention is not limited to these descriptions, and those skilled in the art with appropriate design changes are also included in the scope of the present invention as long as they have the features of the present invention.

Hereinafter, the handle of the present invention will be described.
The handle of the present invention is a handle whose surface is made of a polyurethane resin, and a cured binder containing an antimicrobial component is fixedly formed on the surface of the polyurethane resin constituting the handle, and the cured binder is island-shaped. It is characterized in that it is dispersed in the base material and fixed to the surface of the base material, or a region in which the cured binder is formed and a region in which the cured binder is not formed are mixed and provided on the surface of the base material. And.
Here, the handle is a knob attached to furniture, an instrument, or the like for grasping by hand.

FIG. 4A is a cross-sectional view schematically showing an embodiment of the handle of the present invention, and FIG. 4B is a perspective view of the handle shown in FIG. 4A.
In the embodiment of the handle of FIG. 4, the handle 40 has a handle 41 fixed by a screw 43. The handle portion 41 is made of polyurethane resin, and a binder cured product 42 containing an antimicrobial component is fixedly formed on the surface thereof to impart antimicrobial properties.
By imparting antimicrobial properties to the handle 41 of the handle 40, it is possible to inactivate microorganisms such as viruses attached to the handle 41, so that a human who touches the handle 41 can get a virus or the like. It is possible to prevent the infection of the microorganisms. Further, even if a person carrying a microorganism such as a virus touches the handle 41, the microorganism such as a virus can be inactivated, and then the person who touches the handle 41 is exposed to the microorganism such as a virus. It can prevent transmission. Further, since the binder cured product 42 containing the antimicrobial component has excellent adhesion to the handle portion 41, it does not fall off even if it is touched by human hands one after another or if it is wiped and cleaned.

Hereinafter, the handrail of the present invention will be described.
The handrail of the present invention is a handrail whose surface is made of a polyurethane resin, and a binder cured product containing an antimicrobial component is fixedly formed on the surface of the polyurethane resin constituting the handrail, and the binder cured product is island-shaped. It is characterized in that it is dispersed in the base material and fixed to the surface of the base material, or a region in which the cured binder is formed and a region in which the cured binder is not formed are mixed and provided on the surface of the base material. And.
Railings are crossbars, fences, and balustrades that are attached to the edges of vehicles, bridges, stairs, balconies, etc. for people to grab.

5 (a) is a perspective view schematically showing an embodiment of the handrail of the present invention, and FIG. 5 (b) is a sectional view taken along line AA of the handrail shown in FIG. 5 (a). , FIG. 5 (c) is a perspective view schematically showing another embodiment of the handrail of the present invention.
The handrail 50 shown in FIG. 5 (a) has a single rod shape, and the handrail 50'shown in FIG. 5 (c) is bent into an L shape. The shape of the handrail is not limited to the shapes shown in FIGS. 5A and 5C, and may have a plurality of bent portions or may have a curved shape.
In the embodiment of the handrail of FIG. 5, the handrail main bodies 53 and 53'are fixed to the wall surfaces 51 and 51'by the connecting members 54 and 54'. The handrail bodies 53 and 53'are made of polyurethane resin, and binder cured products 52 and 52'containing antimicrobial components are fixedly formed on the surface thereof to impart antimicrobial properties.
By imparting antimicrobial properties to the surface of the handrail, it is possible to inactivate microorganisms such as viruses attached to the handrail bodies 53 and 53', so that humans who touch the handrail are infected with microorganisms such as viruses. Can be prevented. Further, even if a person carrying a microorganism such as a virus touches the handrail body 53, 53', the microorganism such as the virus can be inactivated, and then a person who touches the handrail body 53, 53'will receive a virus. It is possible to prevent the transmission of such microorganisms. In addition, the hardened binders 52 and 52'containing antimicrobial components have excellent adhesion to the handrail bodies 53 and 53', so that they will not fall off even if they are touched by human hands one after another or wiped off. ..

Hereinafter, the armrest of the chair of the present invention will be described.
The chair armrest of the present invention is a chair armrest whose surface is made of polyurethane resin, and a binder cured product containing an antimicrobial component is fixedly formed on the surface of the polyurethane resin constituting the chair armrest. The cured product is dispersed in an island shape and fixed to the surface of the base material, or a region in which the cured binder is formed and a region in which the cured binder is not formed are mixed and provided on the surface of the base material. It is characterized by being made.
Here, the elbow rest of the chair means a part provided on the side surface of the chair or the like and on which a hand or an elbow can be rested.

FIG. 6A is a perspective view schematically showing an embodiment of the chair armrest of the present invention, and FIG. 6B is a B of the chair armrest of the present invention shown in FIG. 6A. −B sectional view.
In the embodiment of the chair accoudoir of FIG. 6, the chair 60 is composed of a back 65, a seat 66, four legs 63, and a pair of accoudoirs 64, and the chair 60 includes a back 65 and a seat 66. Is covered with the cushion material 61. The elbow rest 64 is provided on the upper part of the leg portion 63 of the chair connected to the seat portion 66.
The surface of the elbow rest 64 is made of polyurethane resin, and a binder cured product 62 containing an antimicrobial component is fixedly formed on the surface thereof to impart antimicrobial properties.
By imparting antimicrobial properties to the surface of the elbow rest 64, it is possible to inactivate microorganisms such as viruses attached to the elbow rest 64, so that humans who touch the elbow rest 64 are infected with microorganisms such as viruses. Can be prevented. Further, even if a person carrying a microorganism such as a virus touches the armrest 64, the microorganism such as the virus can be inactivated, and then the person who touches the armrest 64 is infected with the microorganism such as the virus. Can be prevented. Further, since the binder cured product 62 containing the antimicrobial component has excellent adhesion to the elbow rest 64, it does not fall off even if it is touched by human hands or elbows one after another, or even if it is wiped and cleaned.

Hereinafter, the table edge of the present invention will be described.
The table edge of the present invention is a table edge whose surface is made of a polyurethane resin, and a binder cured product containing an antimicrobial component is fixedly formed on the surface of the polyurethane resin constituting the table edge, and the binder cured product is formed. , The region is dispersed in an island shape and fixed to the surface of the base material, or the region where the cured binder is formed and the region where the cured binder is not formed are mixed and provided on the surface of the base material. It is characterized by that.
Here, the table edge is a portion that imparts cushioning property and abrasion resistance to the side surface portion of the table and protects the table from impact and friction.

7 (a) is a perspective view schematically showing an embodiment of the table edge of the present invention, and FIG. 7 (b) is a side view of the table edge of the present invention shown in FIG. 7 (a). is there.
In the table edge embodiment of FIG. 7, the table legs 73 are connected to the top plate 71 of the table 70 having the table edge (side surface portion) 71a. The surface of the table edge 71a of the top plate 71 of the table 70 is made of polyurethane resin, and a binder cured product 72 having antimicrobial activity is fixedly formed on the surface thereof to impart antimicrobial properties.
By imparting antimicrobial properties to the surface of the table edge 71a, it is possible to inactivate microorganisms such as viruses attached to the table edge 71a, so that humans who touch the table edge are infected with microorganisms such as viruses. Can be prevented. Further, even if a person carrying a microorganism such as a virus touches the table edge 71a on the side surface of the top plate 71, the cured binder 72 containing an antimicrobial component can inactivate the microorganism such as a virus, and then the table. It is possible to prevent the transmission of microorganisms such as viruses to humans who touch the edge 71a. Further, since the binder cured product 72 containing the antimicrobial component has excellent adhesion to the table edge, it does not fall off even if it is touched by human hands one after another or wiped off.

(Example 1)
(1) Dissolve cupric acetate (II) monohydrate powder (manufactured by Fujifilm Wako Pure Chemical Industries, Ltd.) in pure water so that the concentration of copper acetate is 1.75 wt%, and then use a magnetic stirrer. A copper acetate aqueous solution was prepared by stirring at 600 rpm for 15 minutes. The ultraviolet curable resin solution is prepared by mixing a photoradical polymerization type acrylate resin (UCECOAT7200 manufactured by Daicel Ornex), a photopolymerization initiator (Omnirad 500 manufactured by IGM) and (Omnirad 184 manufactured by IGM) at a weight ratio of 97: 2: 1. It was prepared by stirring at 8000 rpm for 30 minutes using a homogenizer. The above 1.75 wt% copper acetate aqueous solution and an ultraviolet curable resin solution were mixed at a weight ratio of 1.9: 1.0 and stirred at 600 rpm for 2 minutes using a magnetic stirrer to prepare an antimicrobial composition. The Omnirad 500 manufactured by IGM is the same as the IRGACURE 500 manufactured by BASF, and is a mixture of 1-hydroxy-cyclohexyl-phenyl-ketone and benzophenone. This photopolymerization initiator is insoluble in water and exhibits reducing power by ultraviolet rays.

(2) Next, it corresponds to ^{16.7 g / m 2} in a state where a polyurethane resin having a size of 300 mm × 300 mm is coated on wood and contains a dispersion medium at an ejection rate of 1.2 g / min. The antimicrobial composition was sprayed into a mist using a spray gun (LPH-50 manufactured by Anest Iwata) at an air pressure of 0.1 MPa and a stroke speed of 30 cm / sec, and droplets of the antimicrobial composition were sprayed on the surface of a polyurethane resin plate. Was attached to.

(3) After that, the polyurethane resin plate is dried at 80 ° C. for 3 minutes, and further, using an ultraviolet irradiation device (MP02 manufactured by COATTEC), the substrate is irradiated with ultraviolet rays at an irradiation intensity of ^{30 mW / cm 2 for 80 seconds.} An antimicrobial member was obtained in which a cured binder containing a copper compound was fixedly formed on the surface of a polyurethane resin plate.

(Example 2)
The antimicrobial member obtained in Example 1 was wiped 11,000 times at a pressure of 150 Pa at a speed of 7.5 cm / sec using a microfiber cloth impregnated with tap water, and was used for wiping evaluation. It was used as an antimicrobial member.

(Comparison example)
After obtaining the antimicrobial composition in the same manner as in Example 1, the antimicrobial composition was applied to the entire surface of the board with a bar coater on a board coated with a polyurethane resin having a size of 300 mm × 300 mm on wood. An antimicrobial member was obtained.

(Evaluation of the shape of the antimicrobial member and the dispersed state of the binder cured product)
The obtained antimicrobial member was photographed with an optical microscope (Microscope VHX-5000 manufactured by KEYENCE CORPORATION). FIG. 3 is an optical micrograph showing the antimicrobial member obtained in Example 1. It can be seen that the binder cured product is fixedly formed on the surface of the polyurethane resin plate which is the base material so as to expose a part of the surface. FIG. 3 shows a mixture of a region in which a cured binder is formed and a region in which a cured binder is not formed.

(Antiviral evaluation using phage virus)
This antiviral test was performed as follows.
In order to evaluate the antiviral property of the antimicrobial member obtained in Examples 1 and 2, JIS Z 2801 antibacterial processed product-antibacterial property test method-a method modified in antibacterial effect was used. The modification is that "inoculation of test bacterial solution" was changed to "inoculation of test virus". All changes due to the use of viruses were made based on the antiviral test method for JIS L 1922 textile products. The measurement results are based on JIS L 1922 Annex B for the antimicrobial members obtained in Examples 1 and 2, and the concentration of the phage virus that has lost the ability to infect Escherichia coli is displayed as the virus inactivity. Here, the concentration of the virus inactivated against Escherichia coli (virus inactivity) was used as an index of the virus concentration, and the antiviral activity value was calculated based on this virus inactivity.

The procedure will be described in detail below.
(1) With respect to the antimicrobial member obtained in Examples 1 and 2, the antimicrobial member was cut into a square having a side of 50 mm square and used as a test sample. This test sample was placed in a sterilized plastic petri dish and inoculated with 0.4 mL of test virus solution (> 107 PFU / mL). The test virus solution used was a stock of 108 PFU / mL diluted 10-fold with purified water.
(2) A 50 mm square polyethylene film was prepared as a control sample, and the virus solution was inoculated in the same manner as the test sample.
(3) A 40 mm square polyethylene was covered over the inoculated virus solution, the test virus solution was evenly inoculated, and then the reaction was carried out at 25 ° C. for a predetermined time.
(4) Immediately after inoculation or after the reaction, 10 mL of SCDLP medium was added to wash away the virus solution.
(5) The virus infection value was determined by JIS L 1922 Annex B.
(6) The antiviral activity value was calculated using the following formula.
Mv = Log (Vb / Vc)
Mv: Antiviral activity value Log (Vb): Logistic value of the infection value after the reaction of the polyethylene film for a predetermined time Log (Vc): Logistic reference standard of the infection value after the reaction of the test sample for a predetermined time JIS L 1922, JIS Z 2801
The measuring method was a plaque measuring method.
The obtained antiviral activity values are shown in Table 1.

(Evaluation of antibacterial properties using Staphylococcus aureus)
Antibacterial evaluation using Staphylococcus aureus was carried out as follows.
(1) The antimicrobial member (polyurethane resin plate) obtained in Examples 1 and 2 was cut into a square of 50 mm square and used as a test sample. This test sample was placed in a sterilized plastic petri dish and inoculated with 0.4 mL of ^{the test bacterial solution (number of bacteria 2.5 × 10 5} to 10 × 10 ^{5 / mL).} For the test bacterial solution, the cultured bacteria pre-cultured in the incubator at a temperature of 35 ± 1 ° C. for 16 to 24 hours are further transplanted to the slope medium and pre-cultured in the incubator at a temperature of 35 ± 1 ° C. for 16 to 20 hours. The one that was appropriately adjusted with 1/500 NB medium was used.
(2) A 50 mm square polyethylene film was prepared as a control sample, and the test bacterial solution was inoculated in the same manner as the test sample.
(3) A 40 mm square polyethylene film was placed over the inoculated test bacterial solution, the test bacterial solution was evenly inoculated, and then the reaction was carried out at a temperature of 35 ± 1 ° C. for 24 ± 1 hour.
(4) Immediately after inoculation or after the reaction, 10 mL of SCDLP medium was added and the test bacterial solution was washed out.
(5) The wash-out solution was appropriately diluted and mixed with a standard agar medium to prepare a petri dish for measuring the viable cell count. After culturing at a temperature of 35 ± 1 ° C. for 40 to 48 hours, the number of colonies was measured.
(6) Calculation of viable cell count The viable cell count was calculated using the following formula.
N = C × D × V
N: Number of viable bacteria C: Number of colonies D: Dilution ratio V: Liquid volume (mL) of SCDLP medium used for washing out
(7) The antibacterial activity value was calculated using the following formula.
_{R = (U t -U 0)} - (A t -U 0) = U t -A t
R: antibacterial activity value U _0: No processing specimen inoculation average U of number of living bacteria logarithm immediately after _t: unprocessed average of number of living bacteria logarithm of 24 hours after the test piece A _t: Antibacterial Average value of logarithmic counts of viable cells 24 hours after processing test piece Reference standard JIS Z 2801
Staphylococcus aureus NBRC12732 was used as the test bacterium.
The obtained antibacterial activity values are shown in Table 1.

(Evaluation of antifungal properties using Aspergillus niger)
The antifungal property evaluation using Aspergillus niger was carried out as follows.
(1) The antimicrobial member (polyurethane resin plate) obtained in Examples 1 and 2 was cut into a square of 50 mm square and used as a test sample. This test sample was placed in a sterilized plastic petri dish and inoculated with 0.4 mL of ^{spore suspension (spore concentration> 2x10 5 pieces / ml).}
(2) A 50 mm square polyethylene film was prepared as a control sample, and a spore suspension was inoculated in the same manner as the test sample.
(3) Cover the inoculated spore suspension with a 40 mm square polyethylene film, inoculate the spore suspension evenly, and then react for 42 hours while irradiating light of about 900 LUX at a temperature of 26 ° C.
(4) Immediately after inoculation or after the reaction, the amount of ATP was measured according to the measurement of JIS L 1921 13 luminescence amount.
(5) The antifungal activity value was calculated using the following formula.
A _a = (LogC _t- LogC ₀ )-(LogT _t- LogT ₀ )
A _a : Antifungal activity value LogC ₀ : Arithmetic mean of ATP amount of 3 control materials immediately after inoculation LogC _t : Arithmetic mean of ATP of 3 control materials after culture LogT ₀ : Arithmetic Mean Arithmetic Mean of 3 Test Materials Immediately After Inoculation LogT _t : Arithmetic Mean Arithmetic Mean of Test Material 3 Samples After Cultivation Reference Standard JIS Z 2801, JIS L 1921
Aspergillus niger NBRC105649 was used as the test mold.
The obtained antifungal activity values are shown in Table 1.

In the present invention, the antiviral activity value, the antibacterial activity value, and the antifungal activity value can all be maintained in a practical range even by wiping. Generally, when a film-like cured binder is used, the adhesion between the surface of the polyurethane resin plate and the cured resin is poor, so the resin film is peeled off by the wiping force, and the antiviral activity value and antibacterial activity Although the value and the antifungal activity value are remarkably decreased, the antimicrobial member of the present invention does not show such a decrease in antimicrobial activity even by wiping or the like, and an antimicrobial member having excellent durability can be obtained. In particular, the antiviral performance and the antifungal performance are hardly deteriorated, and the durability of the antiviral and antifungal properties is excellent. In addition, since antimicrobial activity can be easily imparted simply by applying with a spray, on-site construction can be realized at low cost without the need for special equipment.

Further, when the antimicrobial members obtained in Example 1 and Comparative Example were boiled in hot water at 100 ° C. for 4 hours and returned to room temperature, no change was observed in the antimicrobial member of Example 1, but Comparative Example. As for the antimicrobial member of, swelling was confirmed in the binder cured product containing the antimicrobial component. The polyurethane resin is said to have a hygroscopicity of 1% or more, and it is presumed that the expansion caused by the moisture absorption causes stress at the interface with the cured binder containing an antimicrobial component, resulting in swelling. On the other hand, in Example 1, since the cured binder containing the antimicrobial component is fixed on the polyurethane resin layer in a discontinuous state, it is considered that stress concentration does not occur at the interface. As described above, the present invention can solve the problem of a decrease in antimicrobial activity caused by the high water absorption rate of polyurethane.

10, 20 Anti-microbial member 11, 21 Base material 12 Film forming region 13 Non-film forming region 22, 42, 52, 52', 62, 72 Binder cured product 40 Handle 41 Handle 43 Screw 50, 50'Handrail 51, 51'Wall 53, 53'Handrail body 54, 54' Connecting member 60 Chair 61 Cushion material 63 Leg 64 Armrest 65 Back 66 Seat 70 Table 71 Table top 71a Table edge 73 Table leg

Claims (6)

Organic binder cured product is being fixed form containing a copper compound as an antiviral component to a substrate surface made of polyurethane resin, the organic binder cured product, Ri Na is secured to the substrate surface is dispersed like islands, wherein either the maximum width of the substrate surface direction parallel to the organic binder cured product is 0.1 to 500 [mu] m, or said organic binder cured in a region where the film of the organic binder cured product is formed in the substrate surface An anti-virus member characterized in that a formed region and a region in which the cured organic binder is not formed are provided in a mixed manner. The organic binder is a thermosetting resin, antiviral member according to claim 1 is at least one selected from the group consisting of electromagnetic wave curable resin. Surface is a handle made of a polyurethane resin, an organic binder cured product is being fixed form containing a copper compound as an antiviral component to the surface of the polyurethane resin constituting the handle, the organic binder cured product, the island dispersed Ri Na is secured to the substrate surface, the film of the organic binder cured product of the or the maximum width in a direction parallel to the substrate surface of the organic binder cured product is 0.1 to 500 [mu] m, or the substrate surface A handle characterized in that a region in which the organic binder cured product is formed and a region in which the organic binder cured product is not formed are mixedly provided in the region in which the organic binder cured product is formed. Surface a handrail made of a polyurethane resin, an organic binder cured product is being fixed form containing a copper compound as an antiviral component to the surface of the polyurethane resin constituting the handrail, the organic binder cured product, the island dispersed Ri Na is secured to the substrate surface, the film of the organic binder cured product of the or the maximum width in a direction parallel to the substrate surface of the organic binder cured product is 0.1 to 500 [mu] m, or the substrate surface A handrail characterized in that a region in which the organic binder cured product is formed and a region in which the organic binder cured product is not formed are mixedly provided in the region in which the organic binder cured product is formed. Surface A armrests of a chair made of polyurethane resin, an organic binder cured product containing copper compound is being secured formed as an antiviral component to the surface of the polyurethane resin constituting the armrest of the chair, the organic binder cured product , Ri Na is secured to the substrate surface is dispersed like islands, the organic binder of the or the maximum width in a direction parallel to the substrate surface of the organic binder cured product is 0.1 to 500 [mu] m, or the substrate surface An elbow rest of a chair, characterized in that a region in which the organic binder cured product is formed and a region in which the organic binder cured product is not formed are coexisted in a region in which a film of the cured product is formed. Surface is a table edge made of polyurethane resin, the organic binder cured product containing copper compound is being secured formed as an antiviral component to the surface of the polyurethane resin constituting the table edge, the organic binder cured product Island Ri Na is secured to the dispersion to the substrate surface to Jo, the or the maximum width in a direction parallel to the substrate surface of the organic binder cured product is 0.1 to 500 [mu] m, or organic binder cured product of the substrate surface A table edge characterized in that a region in which the organic binder cured product is formed and a region in which the organic binder cured product is not formed are coexisted in the region in which the film is formed.

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