Sheet product for preventing invasion of pests

Abstract

To provide a sheet product which is inconspicuous even when stuck to window glass, has excellent weather resistance to light or the like, and can effectively prevent the intrusion of harmful insects.SOLUTION: The sheet product has a chemical volatilization surface on one side and an attachment surface on the other side, and the attachment surface of the sheet product is attached to a glass plate based on JISA5759 to prepare a test piece, and a spectral reflectance in a wave range of 300 to 2500nm is measured with an outer surface of the chemical volatilization surface facing a light source to obtain a solar reflectance, the solar reflectance being 15% or more.SELECTED DRAWING: None

Description

[Technical Field]

[0001] The present invention relates to a sheet product that is inconspicuous when attached to a windowpane, has excellent weather resistance such as light resistance, and can effectively prevent the intrusion of pests. [Background technology]

[0002] Flying pests are known to find gaps in windows, doors, etc., day and night, and fly into and invade buildings such as stores, homes, etc. These flying pests not only cause discomfort to people staying in buildings by flying around, but also land on food, etc., and their carcasses may become contaminated with food, which is unhygienic.

[0003] To solve these problems, various products have been developed that prevent the invasion of pests by coating or pasting insecticides or repellents on the glass surface.

[0004] For example, Patent Document 1 describes an aerosol for application to glass surfaces to prevent the invasion of flying pests, which is characterized by being filled with a pest control component, a film-forming component which is a specific higher fatty acid ester, and an n-paraffin-based solvent together with a propellant.

[0005] Furthermore, Patent Document 2 describes an insect repellent poster that describes the details of an event, is attached to the outdoor glass surface of a store, and is exposed to the light of lighting fixtures at night. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Patent No. 4119647 [Patent Document 2] Japanese Patent Application Laid-Open No. 2007-143462 Summary of the Invention [Problem to be solved by the invention]

[0007] However, while the aerosol for preventing the intrusion of flying pests described in Patent Document 1 has excellent pest control effects, the applied surface can be sticky, making it less user-friendly for use on window glass that people may frequently touch. Furthermore, the insect repellent poster described in Patent Document 2 also functions as a poster for event details and is highly conspicuous. Since some consumers do not want others to know that they are using insect repellent, there is a demand for a product that is not too conspicuous when applied to the exterior of a building's windows and can effectively prevent the intrusion of flying pests. Furthermore, windows are particularly susceptible to the effects of light, as they are exposed to direct sunlight as well as reflected and scattered light. Therefore, there is a demand for products with excellent weather resistance, such as light resistance.

[0008] SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a sheet product that is inconspicuous when applied to a windowpane, has excellent weather resistance such as light resistance, and can effectively prevent the intrusion of pests. [Means for solving the problem]

[0009] In order to solve the above-mentioned problems, the inventors focused on the solar reflectance in the wavelength range of 300 to 2500 nm (all wavelength range) when a pest intrusion prevention sheet, which has a resin layer in which a pest intrusion prevention component is supported in a resin and has one side of the sheet product as a chemical volatilization surface and the other side as an adhesive surface, is attached to glass for use. As a result of extensive investigation, the above-mentioned problems were solved by setting the solar reflectance of the sheet product within a specific range.

[0010] That is, the present invention relates to the following. (1) A sheet product for preventing pest invasion, which has a resin layer in which a pest invasion prevention component is supported in the resin, and the sheet product has one side as a chemical agent volatilization side and the other side as an adhesive side, and is characterized in that, based on JIS A 5759, the adhesive side of the sheet product is attached to a glass plate to prepare a test piece, and the outer surface of the chemical agent volatilization side is directed toward a light source and the spectral reflectance in the wavelength range of 300 to 2500 nm is measured to determine the solar reflectance, which is 15% or more. (2) The pest-preventing sheet product according to (1), wherein the mass ratio of the pest-preventing component to the resin is 5:95 to 50:50 (mass ratio). (3) A sheet product for preventing pest invasion according to (1) or (2), characterized in that the pest invasion prevention component is one or more selected from the group consisting of metofluthrin, transfluthrin, and profluthrin. (4) The pest-preventing sheet product according to any one of (1) to (3), wherein the resin contains an ethylene copolymer resin and / or a synthetic rubber resin. (5) A pest intrusion prevention sheet product according to any one of (1) to (4), characterized in that the resin layer has a pest intrusion prevention component permeable sheet laminated on its pest intrusion prevention component vaporization side, and a pest intrusion prevention component impermeable sheet layer non-permeable and non-adsorbent to the pest intrusion prevention component laminated on its adhesive side. (6) The pest-preventing sheet product according to (5), wherein the chemical-permeable sheet layer is a polyolefin-based sheet layer, a perforated polyolefin-based sheet layer, or a nonwoven fabric. (7) A sheet product for preventing pest invasion described in either (5) or (6), characterized in that an adhesive layer made of an adhesive is laminated on the side of the drug-impermeable sheet layer opposite to the side on which the resin layer is located, and a separator that can be peeled off from the adhesive is attached to the adhesive layer, and the separator can be peeled off to allow the product to be attached to another object. (8) A method for preventing the intrusion of pests, comprising adhering a sheet product having a resin layer in which a pest intrusion prevention component is supported in a resin, the sheet product having one side as a chemical agent volatilization side and the other side as an adhesive side, and according to JIS A 5759, a test piece is prepared by adhering the adhesive side of the sheet product to a glass plate, and when the outer surface of the chemical agent volatilization side is directed toward a light source and the spectral reflectance in the wavelength range of 300 to 2500 nm is measured to determine the solar reflectance, the solar reflectance is 15% or more. [Effects of the Invention]

[0011] According to the present invention, a sheet product can be provided which is inconspicuous when attached to a window glass, has excellent weather resistance such as light resistance, and can prevent the intrusion of various pests, particularly effectively preventing the intrusion of flying pests. DETAILED DESCRIPTION OF THE INVENTION

[0012] The pest-preventing sheet product of the present invention and the pest-preventing method using the same are described in detail below. However, the present invention is not intended to be limited to the configurations described in the embodiments described below. Furthermore, when the notation "to" indicates a range in this specification, it is assumed that the upper and lower limits are included.

[0013] The present invention is a sheet product for preventing the intrusion of pests, which has a resin layer in which a pest-intrusion prevention component is supported in the resin, and which has one surface as an agent-evaporating surface and the other surface as an adhesive surface, and which is characterized in that, in accordance with JIS A 5759, a test piece is prepared by attaching the adhesive surface of the sheet product to a glass plate, and the outer surface of the agent-evaporating surface is directed toward a light source to measure the spectral reflectance in the wavelength range of 300 to 2500 nm to determine the solar reflectance, which is 15% or more.

[0014] The term "solar reflectance" in the present invention is defined in JIS A 5759 (2008 Architectural Window Glass Films) and refers to the reflectance calculated by measuring the spectral reflectance at each wavelength in the wavelength range of 300 to 2500 nm (full wavelength range) and taking into account the weighting coefficient for each wavelength. In the present invention, the solar reflectance is determined by attaching the adhesive side of the pest intrusion prevention sheet product to a glass plate to prepare a test piece, and then facing the outer surface of the agent volatilization side toward the light source to measure the spectral reflectance in the wavelength range of 300 to 2500 nm.

[0015] The pest-preventing sheet product of the present invention has a solar reflectance of 15% or more, preferably 20% or more, and more preferably 30% or more, and may be transparent, translucent, or opaque.

[0016] The pest invasion prevention component of the present invention is not particularly limited, but may include one or more compounds selected from the group consisting of pyrethroid compounds, diol compounds, amide compounds, and dibasic acid ester compounds.

[0017] Various pyrethroid compounds can be used as the above-mentioned compounds. However, in terms of their effectiveness in preventing pest invasion and ease of use, pyrethroid compounds with a vapor pressure of 2×10 at 30°C are preferred. -4 ~1×10 -2 A pressure in the range of mmHg is preferably used. Specifically, 4-methoxymethyl-2,3,5,6-tetrafluorobenzyl 2,2-dimethyl-3-(1-propenyl)cyclopropanecarboxylate (metofluthrin), 4-methyl-2,3,5,6-tetrafluorobenzyl 2,2-dimethyl-3-(1-propenyl)cyclopropanecarboxylate (profluthrin), 2,3,5,6-tetrafluorobenzyl 2,2-dimethyl-3-(2,2-dichlorovinyl)cyclopropanecarboxylate (transfluthrin), 4-methoxymethyl-2,3,5,6-tetrafluorobenzyl 2,2,3,3-tetramethylcyclopropanecarboxylate, 4-propargyl-2,3,5,6-tetrafluorobenzyl 2,2,3,3-tetramethylcyclopropanecarboxylate, 1-ethynyl-2-methyl-2-pentenyl Examples include 2,2-dimethyl-3-(2-methyl-1-propenyl)cyclopropanecarboxylate (empenthrin), mepafluthrin, and heptafluthrin, but among others, one or more selected from the group consisting of metofluthrin, transfluthrin, and profluthrin are preferred, and metofluthrin and / or transfluthrin are more preferred. Furthermore, these compounds have optical isomerism based on asymmetric carbons and geometric isomerism based on double bonds, and each of these isomers and any mixture thereof are naturally encompassed by the present invention.

[0018] Examples of the diol compound include p-menthane-3,8-diol, p-menthane-1,8-diol, and 2-ethyl-1,3-hexanediol. Examples of the amide compound include 3-(Nn-butyl-N-acetyl)aminopropionic acid ethyl ester (IR3535), DEET, and icaridin. Examples of the dibasic acid ester compound include diethyl oxalate, dimethyl malonate, diethyl malonate, dimethyl succinate, diethyl succinate, dipropyl succinate, dibutyl succinate, dimethyl glutarate, diethyl glutarate, diethyl adipate, dipropyl adipate, dibutyl adipate, diethyl sebacate, dimethyl phthalate, dibutyl phthalate, dibutyl maleate, and dibutyl fumarate. Such pest intrusion prevention components are also volatile at room temperature, and have a vapor pressure of approximately 1×10 at 25° C. -5 ~1×10 -1 mmHg range.

[0019] In the present invention, for the purpose of fragrance blending, for example, a small amount of terpene fragrances such as α-pinene, terpineol, geraniol, linalool, citronellal, eugenol, camphor, eucalyptol, citral, menthol, allyl heptanoate, and allyl hexanoate, or natural plant essential oils such as peppermint oil, lavender oil, orange oil, eucalyptus oil, and spearmint oil may be added, as long as it does not interfere with the volatility performance of the pest invasion prevention component and the purpose of the invention.

[0020] In the present invention, the resin that carries the pest invasion prevention component is not particularly limited as long as it has the ability to stably and slowly release the pest invasion prevention component, and one or more resins selected from the group consisting of ethylene copolymer resins, synthetic rubber resins, polyolefin resins, polyester resins, polyamide resins, polyvinyl chloride resins, urethane resins, rosin ester resins, and paraffin wax resins can be used as appropriate.

[0021] Among these, a resin layer in which a pest intrusion-preventing component is supported on a resin is preferably one in which a pest intrusion-preventing component-permeable sheet, which is permeable to the pest intrusion-preventing component, is laminated on the pest intrusion-evaporating side, and a pest intrusion-impermeable sheet layer, which is impermeable to and non-adsorbent for the pest intrusion-preventing component, is laminated on the adhesive side. The resin forming such a pest intrusion-preventing component-containing resin layer is preferably a hot-melt resin containing an ethylene copolymer resin and / or a synthetic rubber resin. The hot-melt resin is a resin that can be liquefied by heating and resolidifies upon cooling, and can be used as an adhesive. Since the pest intrusion-preventing component is supported on the resin, a hot-melt resin, which does not require solvent evaporation, is preferred as the resin for bonding the two sheet layers. That is, by incorporating at least one of an ethylene copolymer resin and a synthetic rubber resin into the adhesive for fixing the pest intrusion-preventing component and bonding the sheet layers, the possibility of the pest intrusion-preventing component deteriorating can be sufficiently reduced. These resins have low reactivity with the pest invasion-preventing component, so even when mixed, the hot melt resin is less likely to react with the pest invasion-preventing component, allowing the pest invasion-preventing component to be stored for a long period of time.

[0022] Here, ethylene copolymer resin refers to a copolymer resin of ethylene with another monomer having a reactive group, such as a vinyl group or a vinylidene group, that undergoes a copolymerization reaction with ethylene. Examples include ethylene-vinyl acetate copolymer resin, ethylene-(meth)acrylic acid copolymer resin, ethylene-methyl(meth)acrylate copolymer resin (i.e., ethylene-methyl(meth)acrylate copolymer resin), and ethylene-ethyl(meth)acrylate copolymer resin. Note that "(meth)acrylic" refers to "acrylic" or "methacrylic." Among these, it is desirable to include 30% by mass or more of ethylene-vinyl acetate copolymer resin or ethylene-methyl methacrylate copolymer resin in the resin, as this effectively exhibits the aforementioned effects. The pest invasion prevention component, which is retained while suppressing deterioration, can be slowly released in a controlled manner depending on the content in the resin layer and the permeability of the chemical-permeable sheet. Furthermore, it is preferable for the resin to contain 30% by mass or more of ethylene-vinyl acetate copolymer resin or ethylene-methyl methacrylate copolymer resin, as this reduces reactivity with the pest invasion prevention component. It is even more preferable for the resin to contain 40% by mass or more of the ethylene-vinyl acetate copolymer resin or ethylene-methyl methacrylate copolymer resin, and it is even more preferable for the ethylene-vinyl acetate copolymer resin or ethylene-methyl methacrylate copolymer resin to account for the entire resin. The molar ratio of the ethylene monomer component to other monomer components, such as vinyl acetate (monomer) or methyl methacrylate (monomer), in the ethylene copolymer resin is preferably 5:95 to 95:5. Outside this range, the properties of the homopolymer rather than the ethylene copolymer resin may become too strong, which may prevent the effects of the invention from being achieved.

[0023] On the other hand, examples of the synthetic rubber resin include styrene-butadiene-styrene (hereinafter abbreviated as "SBS") block copolymers, styrene-isoprene-styrene block copolymers, styrene-ethylene-butene-styrene block copolymers, and styrene-ethylene-propylene-styrene block copolymers. Note that, as the proportion of the synthetic rubber resin increases, blocking tends to occur in the cross section of the laminate sheet, so it is preferable to use the synthetic rubber resin in combination with the ethylene copolymer resin to suppress blocking, rather than using it alone.

[0024] The hot melt resin may contain, in addition to the ethylene copolymer resin and the synthetic rubber resin, polyolefin resin, polyester resin, polyamide resin, rosin ester resin, or paraffin wax resin as other components, provided that the compatibility with the pest intrusion-preventing component in the heat-melting step, the temperature stability of the pest intrusion-preventing component and the adhesive itself, and the adhesive strength are suitable.

[0025] The softening point of the hot-melt resin is preferably 70°C or higher. If the softening point is within this range, there is less chance of blocking, delamination, or bleeding of the resin from the cross section of the laminated sheet, even when stored in a high-temperature environment. On the other hand, it is preferable that the softening point is 180°C or lower. If the softening point is within this range, there is less chance of the pest invasion prevention component reacting and losing its efficacy when the resin is hot-melted and liquefied to form the resin layer, resulting in an excellent product. The softening point here is measured by the ring and ball method.

[0026] The blending mass ratio of the pest intrusion prevention component to the resin forming the resin layer is preferably 5:95 to 50:50, more preferably 5:95 to 30:70, and even more preferably 10:90 to 20:80. By being within this range, the pest intrusion prevention effect, adhesive strength, and weather resistance such as light resistance can be improved.

[0027] The thickness of the resin layer is not particularly limited, but is preferably 40 to 400 μm, more preferably 50 to 200 μm, and even more preferably 60 to 150 μm. By keeping the thickness within this range, the effect of preventing pest invasion and weather resistance such as light resistance are improved.

[0028] Furthermore, in addition to the pest intrusion prevention component and the resin, various other components may be added to the resin layer as long as they do not alter the pest intrusion prevention component and do not significantly hinder its volatilization. Examples include ultraviolet absorbers, ultraviolet scattering agents, glossing agents, dispersants, fragrances, pigments, dyes, etc. These components may be mixed when preparing the above-mentioned heat-melted liquefied mixture.

[0029] The pigment or dye may be white, blue, red, yellow, green, or other pigment or dye, but is not limited thereto. Examples of white pigments or dyes include titanium oxide, such as Titanium CR97. Examples of blue pigments or dyes include Dipyroxide Color Blue 9453 (manufactured by Dainichiseika Color & Chemicals Mfg. Co., Ltd.), Fastogen Blue 5485 (manufactured by Dainippon Ink & Chemicals Mfg. Co., Ltd.), Fastogen Blue RS (manufactured by Dainippon Ink & Chemicals Mfg. Co., Ltd.), Cyanine Blue 5240KB (manufactured by Dainichiseika Color & Chemicals Mfg. Co., Ltd.), and SUMIPLAST BLUE OA (manufactured by Sumika Chemtex Co., Ltd.). Examples of red pigments or dyes include Todacolor 120ED (manufactured by Toda Kogyosho Co., Ltd.), Fastogen Super Magenta RH (manufactured by Dainippon Ink & Chemicals Mfg. Co., Ltd.), Fastogen Red 7100Y (manufactured by Dainippon Ink & Chemicals Mfg. Co., Ltd.), and Rubicron Red 400RG (manufactured by Dainippon Ink & Chemicals Mfg. Co., Ltd.). Examples of yellow pigments or dyes include Symuler Fast Yellow 4192 (manufactured by Dainippon Ink and Chemicals, Inc.) and Shiko Pearl Yellow L-1110 (manufactured by BASF). Examples of green pigments or dyes include Dipyroxide Color Green 9310 (manufactured by Dainichiseika Color & Chemicals Mfg. Co., Ltd.), Firstgen Green 2YK (manufactured by Dainippon Ink and Chemicals, Inc.), and Lionol Green 6YKP-N (manufactured by Toyo Ink Mfg. Co., Ltd.). In this case, the content of the pigment or dye is not particularly limited, but is preferably 0.005 to 5% by weight of the pest invasion prevention component.

[0030] The color of the drug-evaporating surface of the sheet product of the present invention is not particularly limited, but examples include blue (including dark blue, blue, light blue, light blue, etc.), green (including dark green, green, light green, etc.), yellow (including dark yellow, yellow, light yellow, etc.), red (including dark red, red, light red, pink, etc.), and white. Among these, blue (including dark blue, blue, light blue, light blue, etc.), green (including dark green, green, light green, etc.), and white are preferred, and blue (including blue, dark blue, light blue, light blue, etc.) or white are more preferred. Note that each color in this specification conforms to JIS Z 8102 (2001 Color Names of Object Colors).

[0031] Next, each sheet layer constituting the laminated-type pest invasion-preventing sheet product will be described. The resin layer in which the pest invasion-preventing component is supported on a resin may have a chemical-permeable sheet that is permeable to the pest invasion-preventing component laminated on its chemical-vaporizing surface side, or a chemical-permeable sheet that is permeable to the pest invasion-preventing component laminated on its chemical-vaporizing surface side, and a chemical-impermeable sheet layer that is impermeable to and non-adsorbent for the pest invasion-preventing component laminated on its adhesive surface side. In particular, a resin layer in which a pest-invasion prevention component is supported on a resin is preferably one in which a drug-permeable sheet that is permeable to the pest-invasion prevention component is laminated on the drug-evaporation side, and a drug-impermeable sheet layer that is impermeable to and non-adsorbent for the pest-invasion prevention component is laminated on the adhesive side.

[0032] As the chemical impermeable sheet layer, a sheet layer that is impermeable and non-adsorbent to the pest invasion prevention component is used.This is because, when the pest invasion prevention component is volatilized from the chemical impermeable sheet layer, it is more useful to prevent the volatilization from the chemical impermeable sheet layer on the opposite side.In addition, the term "impermeable" does not only include those that do not completely permeate, but also those that, even if they permeate slightly, do not permeate to the extent that the pest invasion prevention component exerts its efficacy.

[0033] Examples of the drug-impermeable sheet layer include sheets made of polyester such as polyethylene terephthalate and polybutylene terephthalate, and sheets made of acrylonitrile, aluminum foil, polyamide, and the like.

[0034] The thickness of the drug-impermeable sheet layer is preferably 5 μm or more, more preferably 10 μm or more, and even more preferably 20 μm or more. By being within this range, even with the above-mentioned material, there is no risk of the pest invasion prevention component permeating, and the possibility of scratches due to insufficient strength causing the pest invasion prevention component to volatilize from the scratches can be ignored. On the other hand, the thicker the layer, the lower the permeability, so there is no particular upper limit in terms of permeability, but from the viewpoint of suitably adjusting the weight and rigidity, it is preferably 150 μm or less, more preferably 100 μm or less, and even more preferably 70 μm or less.

[0035] As the chemical-permeable sheet layer, a sheet layer having permeability to the pest invasion prevention component is used, and examples thereof include polyolefin resins such as polyethylene and polypropylene, biodegradable resins such as polylactic acid, and various films of vinyl chloride, etc. Among these, polyolefin resins that can effectively penetrate and allow the pest invasion prevention component to penetrate are preferred.

[0036] The penetration and permeation rate of the pest invasion-preventing component of the chemical-permeable sheet layer can be controlled by changing its thickness. Although it depends on the content of the pest invasion-preventing component, in most cases, the thickness is preferably 5 to 150 μm, more preferably 10 to 100 μm, and even more preferably 20 to 70 μm. By being within this range, the possibility of deformation or tearing when coating the heat-melted mixture, or the possibility of pinholes opening or tearing during storage and use, can be ignored, and transparency is not impaired and rigidity is not too high.

[0037] When polyolefin is used for these chemical-permeable sheet layers and profluthrin or empenthrin is used as the pest-invasion-preventing component, the usage period can be set to about 1 to 4 months, which is particularly preferable. Examples of sheets made of polyolefin include polyethylene film and polypropylene film. These pyrethroid compounds penetrate and permeate the chemical-permeable sheet layer and volatilize from the surface.

[0038] Furthermore, the chemical-permeable sheet layer can be a perforated sheet with artificially drilled holes penetrating the front and back surfaces to appropriately adjust the volatility. The diameter of the holes can be adjusted as needed, preferably between about 100 and 500 μm. When using such a perforated film, even if the resin constituting the chemical-permeable sheet itself is chemical-impermeable, the pest intrusion prevention component can permeate through the holes, thereby broadening the range of material options. However, using a perforated polyolefin sheet, in which the resin itself is permeable, is easier to adjust and use. Furthermore, various nonwoven fabrics can be used as the chemical-permeable sheet layer. Examples of such nonwoven fabric materials include polyethylene fibers, polypropylene fibers, polyethylene terephthalate fibers, and blends thereof. When using such a nonwoven fabric, the nonwoven fabric itself, formed by intertwining the fibers into a cloth, is opaque white due to its structural characteristics. Therefore, if the resin layer in which the pest intrusion prevention component is supported on the resin and the nonwoven fabric do not contain dyes or pigments, the chemical-permeable surface of the sheet product will be white.

[0039] Combinations such as the perforated sheet and / or nonwoven fabric used as the drug-permeable sheet layer and using, for example, metofluthrin or transfluthrin are also suitable for setting a usage period of about 1 to 4 months. These drugs not only permeate and penetrate the film, but also volatilize from the holes or gaps in the nonwoven fabric, ensuring sufficient sustained release.

[0040] The method for forming the pest intrusion-preventing sheet product of the present invention from the resin layer and each of these sheet layers can be a general method, such as coating one of the sheet layers with the resin mixture that has been heat-melted and liquefied, and then laminating the other sheet layer before the mixture solidifies, or coating one of the sheet layers with the resin mixture that has been heat-melted and liquefied, and then laminating the other sheet layer after the resin has solidified. The sheet layer to be coated first may be either the chemically impermeable sheet layer or the chemically permeable sheet layer, but it is preferable to coat the chemically impermeable sheet layer because it is less likely to wrinkle.

[0041] The size of the pest intrusion prevention sheet product of the present invention prepared in this manner can be selected as appropriate, but depending on the location of use, a size of approximately 2 cm x 2 cm to 30 cm x 30 cm is easy to use.

[0042] The pest invasion-preventing sheet product of the present invention can be embodied in such a way that an adhesive layer made of an adhesive is provided on the side of the chemical-impermeable sheet layer opposite the resin layer, and a separator that is peelable from the adhesive is further attached to the adhesive. (That is, the chemical-impermeable sheet layer is laminated between the resin layer and the adhesive layer, and a separator that is peelable from the adhesive is attached to the adhesive layer.) In this embodiment, the separator can be peeled off, and the pest invasion-preventing sheet product can be attached to the outer surface of various window panes, etc., thanks to the adhesive effect of the adhesive layer.

[0043] Examples of adhesives used in these include, but are not limited to, various adhesives such as rubber-based adhesives, acrylic-based adhesives, and silicone-based adhesives. However, these adhesives must not be altered even when the pest intrusion prevention component is adsorbed. Double-sided adhesive tape can also be used instead of the adhesive. Examples of separators include, but are not limited to, various common separators such as those made of paper or film. The pressure-sensitive adhesive layer may also contain other components, similar to the resin layer, such as ultraviolet absorbers, ultraviolet scattering agents, glossing agents, dispersants, fragrances, pigments, and dyes.

[0044] The present invention provides a method for preventing insects from entering the pest prevention sheet product of the present invention by placing the sheet product on the outer surface of window glass of a building such as a store or a house, and absorbing 1 to 400 mg / day / m 2 , preferably 2 to 200 mg / day / m 2 The pest intrusion prevention component is vaporized at a rate of 1 to 4 months, thereby preventing pests from invading buildings such as stores and houses for about 1 to 4 months. Here, the method of installation is to stick the product to the wall using the adhesive layer.

[0045] When storing the pest invasion-preventing sheet product of the present invention, the pest invasion-preventing component vapor is saturated within the sealed container by sealing it, thereby preventing further evaporation from the resin layer. When in use, the sheet is opened and applied to the outer surface of windowpanes of buildings such as stores and houses.

[0046] The pest intrusion prevention sheet product of the present invention can be used on any surface, without any particular limitation, provided that it can achieve the purpose of preventing pests such as flying pests and crawling pests from invading buildings such as stores and houses. Examples of suitable surfaces include doors, automatic doors, glass doors, automatic glass doors, window panes, and shop curtains in convenience stores, restaurants, supermarkets, etc. However, because the product is not conspicuous and has excellent light stability, it is suitable for use on the exterior surfaces of glass doors, automatic glass doors, window panes, etc.

[0047] According to the pest intrusion prevention method of the present invention, it is possible to reliably prevent pests from invading buildings such as stores and houses. The target pests include flying pests such as mosquitoes, gnats, midges, flies, moths, stink bugs, and small gnats, as well as crawling pests such as cockroaches, ants (including black ants, red ants, water ants, fire ants, etc.), booklice, beetles, rice weevils, dermestid beetles, and mites, as well as millipedes, cutworms, stable flies, sand flies, midges, lice, small dermestid beetles, bedbugs, silverfish, house centipedes, woodlice, pill bugs, centipedes, and slugs. However, the device is suitable for targeting flying pests such as mosquitoes, gnats, midges, flies, moths, stink bugs, and small gnats.

[0048] The pest-preventing sheet product of the present invention will be described in more detail below with reference to examples, but the present invention is not limited to these examples. [Example]

[0049] [Manufacturing example] Example 1 The pest prevention ingredient metofluthrin and resin [ethylene-methyl methacrylate copolymer resin: Sumitomo Chemical Co., Ltd. "WH303", softening point 146°C, hereafter abbreviated as "EMMA"] were heated to 190°C to melt and mix in a ratio of pest prevention ingredient:resin = 15:85 (mass ratio), and then coated onto the surface of a chemical-impermeable sheet layer [polyethylene terephthalate film: Unitika Ltd. "Emblet", thickness; 50 μm, hereafter abbreviated as "PET-A"] so that the amount of metofluthrin per sheet area (10 cm x 10 cm) was 0.2 g. After the resin solidified, a chemical-permeable sheet layer [polyethylene terephthalate nonwoven fabric: Unicel Corporation "RT-0113W", basis weight 60 g / m 2A 120 μm thick nonwoven fabric (hereinafter referred to as "nonwoven fabric") was attached to the resin layer, and a pressure-sensitive adhesive layer was further provided on the back of the PET-A to obtain a pest intrusion-preventing sheet product of Example 1. The pest intrusion-preventing sheet product had a white color on the chemical vaporization side. The pest intrusion-preventing sheet product was cut into a 3 cm x 3 cm piece, and the adhesive side of the sheet product was attached to a glass plate (JIS R 3202 float plate glass, 3 mm thick, manufactured by Nippon Sheet Glass Co., Ltd.) in accordance with JIS A 5759 to prepare a test piece. The outer surface of the chemical vaporization side was faced toward a light source, and the spectral reflectance in the wavelength range of 300 to 2500 nm was measured to determine the solar reflectance, which was 35%.

[0050] Example 2 Transfluthrin, a pest-invasion prevention ingredient, and resin [EMMA] were heated to 190°C to melt and mix in a ratio of pest-invasion prevention ingredient:resin = 15:85 (mass ratio), and then coated onto the surface of the drug-impermeable sheet layer [PET-A] so that the amount of transfluthrin per sheet area (10 cm x 10 cm) was 0.2 g. After the resin solidified, a chemical-permeable sheet layer [nonwoven fabric] was attached to the resin layer, and an adhesive layer was further provided on the back of [PET-A] to obtain a pest intrusion prevention sheet product of Example 2. The color of the chemical vaporization side of this pest intrusion prevention sheet product was white. The solar reflectance of this pest intrusion prevention sheet product was 35% when measured using the same method as in Example 1.

[0051] Example 3 The pest-invasion-preventing ingredient transfluthrin and a resin [ethylene-vinyl acetate copolymer resin: Aron Evergrip Limited's "Evergrip PK222", softening point 79°C, ethylene-vinyl acetate copolymer content: 40%] were heated to 130°C to melt and mix in a ratio of pest-invasion-preventing ingredient:resin = 15:85 (mass ratio), and then coated onto the surface of a chemical-impermeable sheet layer [polyethylene terephthalate film: Unitika Ltd.'s "Emblet", thickness 25μm, hereafter abbreviated as "PET-B") so that the amount of transfluthrin per sheet area (10cm x 10cm) was 0.2g. After the resin solidified, a chemical-permeable sheet layer [nonwoven fabric] was attached to the resin layer, and an adhesive layer was further provided on the back of [PET-B] to obtain the pest intrusion prevention sheet product of Example 3. The color of the chemical vaporization side of this pest intrusion prevention sheet product was white. The solar reflectance of this pest intrusion prevention sheet product was 35% when measured using the same method as in Example 1.

[0052] Example 4 Metofluthrin, a pest prevention ingredient, and resin [EMMA] were heated to 190°C to melt and mix in a ratio of pest prevention ingredient:resin = 30:70 (mass ratio), and then coated onto the surface of the drug-impermeable sheet layer [PET-A] so that the amount of Metofluthrin was 0.2 g per sheet area (10 cm x 10 cm). After the resin solidified, a chemical-permeable sheet layer [nonwoven fabric] was attached to the resin layer, and an adhesive layer was further provided on the back of [PET-A] to obtain the pest intrusion prevention sheet product of Example 4. The color of the chemical vaporization side of this pest intrusion prevention sheet product was white. The solar reflectance of this pest intrusion prevention sheet product was 35% when measured using the same method as in Example 1.

[0053] Example 5 The pest prevention ingredient metofluthrin, blue dye, and resin [EMMA] were heated to 190°C to melt and mix in a ratio of pest prevention ingredient:resin = 15:85 (mass ratio), and then coated onto the surface of the drug-impermeable sheet layer [PET-A] so that the amount of metofluthrin was 0.2g and the amount of blue dye was 0.002g per sheet area (10cm x 10cm). After the resin solidified, a chemical-permeable sheet layer [nonwoven fabric] was attached to the resin layer, and an adhesive layer was further provided on the back of [PET-A] to obtain the pest intrusion prevention sheet product of Example 5. The color of the chemical vaporization side of this pest intrusion prevention sheet product was blue. The solar reflectance of this pest intrusion prevention sheet product was 29% when measured using the same method as in Example 1.

[0054] Example 6 The pest prevention ingredient metofluthrin, green dye, and resin [EMMA] were heated to 190°C to melt and mix in a ratio of pest prevention ingredient:resin = 15:85 (mass ratio), and then coated onto the surface of the drug-impermeable sheet layer [PET-A] so that the amount of metofluthrin was 0.2g and the amount of green dye was 0.01g per sheet area (10cm x 10cm). After the resin solidified, a chemical-permeable sheet layer [nonwoven fabric] was attached to the resin layer, and an adhesive layer was further provided on the back of [PET-A] to obtain the pest intrusion prevention sheet product of Example 6. The color of the chemical vaporization side of the pest intrusion prevention sheet product was green. The solar reflectance of the pest intrusion prevention sheet product was 17% when measured using the same method as in Example 1.

[0055] Example 7 The pest prevention ingredient metofluthrin, white pigment, and resin [EMMA] were heated to 190°C to melt and mix in a ratio of pest prevention ingredient:resin = 15:85 (mass ratio), and then coated on the surface of the drug-impermeable sheet layer [PET-A] so that the amount of metofluthrin was 0.2g and the amount of white pigment was 0.002g per sheet area (10cm x 10cm). Before the mixture solidified, a drug-permeable sheet layer (perforated polypropylene film: Nidai-ki Co., Ltd., "Kiko I", 30 μm thick, 250 μm diameter holes, 25 cm 2 [PET-A] (200 vacant pieces per sheet) was attached to the resin layer, and an adhesive layer and a separator were further provided on the back of [PET-A] to obtain the pest intrusion prevention sheet product of Example 7. The pesticide volatilization side of the pest intrusion prevention sheet product was white in color. The solar reflectance of the pest intrusion prevention sheet product was 43% when measured using the same method as in Example 1.

[0056] Example 8 The pest-invasion-preventing ingredient profluthrin, white pigment, and resin [EMMA] were heated to 190°C, melted, and mixed in a ratio of pest-invasion-preventing ingredient:resin = 15:85 (mass ratio), and then coated on the surface of the drug-impermeable sheet layer [PET-A] so that the amount of profluthrin was 0.4 g and the amount of white pigment was 0.004 g per sheet area (10 cm x 10 cm). Before the mixture solidified, a chemical-permeable sheet layer [polyethylene film: "Rix" manufactured by Toyobo Co., Ltd., 50 μm thick, hereinafter abbreviated as "PE50"] was attached to the resin layer, and an adhesive layer and a separator were further provided on the backside of [PET-A] to obtain the pest intrusion prevention sheet product of Example 8. The color of the chemical-evaporating side of the pest intrusion prevention sheet product was white. The solar reflectance of the pest intrusion prevention sheet product was 42% when measured using the same method as in Example 1.

[0057] Example 9 The pest-preventing ingredient profluthrin, white pigment, and resin [synthetic rubber adhesive: SBS block copolymer "Tufprene A" manufactured by Asahi Kasei Corporation, softening point 96°C] were heated to 130°C to melt and mix in a ratio of pest-preventing ingredient:resin = 15:85 (mass ratio), and then coated onto the surface of the drug-impermeable sheet layer [PET-A] so that the amount of profluthrin was 0.4g and the amount of white pigment was 0.004g per sheet area (10cm x 10cm). Before the mixture solidified, a chemical-permeable sheet layer [PE50] was attached to the resin layer, and an adhesive layer and a separator were further provided on the back of [PET-A] to obtain the pest intrusion prevention sheet product of Example 9. The chemical vaporization side of the pest intrusion prevention sheet product was white. The solar reflectance of the pest intrusion prevention sheet product was 43% when measured using the same method as in Example 1.

[0058] (Comparative Example 1) The pest prevention ingredient metofluthrin, black dye, and resin [EMMA] were heated to 190°C to melt and mix in a ratio of pest prevention ingredient:resin = 15:85 (mass ratio), and then coated onto the surface of the drug-impermeable sheet layer [PET-A] so that the amount of metofluthrin was 0.2g and the amount of black dye was 0.02g per sheet area (10cm x 10cm). After the resin solidified, a chemical-permeable sheet layer [nonwoven fabric] was attached to the resin layer, and an adhesive layer was further provided on the back of [PET-A] to obtain a pest intrusion prevention sheet product of Comparative Example 1. The color of the chemical volatilization side of this pest intrusion prevention sheet product was black. The solar reflectance of this pest intrusion prevention sheet product was 9% when measured using the same method as in Example 1.

[0059] (Comparative Example 2) The pest-invasion-preventing ingredient profluthrin and resin [EMMA] were heated to 190°C, melted, and mixed in a ratio of pest-invasion-preventing ingredient:resin = 15:85 (mass ratio), and then coated onto the surface of the drug-impermeable sheet layer [PET-A] so that the amount of profluthrin per sheet area (10 cm x 10 cm) was 0.4 g. Before the mixture solidified, a chemical-permeable sheet layer [PE50] was attached to the resin layer, and an adhesive layer and a separator were further provided on the back of [PET-A] to obtain a pest intrusion prevention sheet product of Comparative Example 2. The chemical vaporization side of the pest intrusion prevention sheet product was colorless. The solar reflectance of the pest intrusion prevention sheet product was 7% when measured using the same method as in Example 1.

[0060] [Test example] The pest intrusion-preventing sheet products of Examples 1 to 9 and Comparative Examples 1 and 2 were subjected to a light stability test, a visibility evaluation test, and an intrusion-preventing effect evaluation test according to the methods described below. The test results are shown in Table 1. <Photostability evaluation test> The pest intrusion-preventing sheet product of Example 1 was cut into two pieces measuring 3 cm x 3 cm and prepared (referred to as test sample 1 and test sample 2). Each was sealed in a separate glass sample tube. Test sample 1 was stored in sunlight for 90 days, and test sample 2 was stored in the dark for 90 days. Test sample 1 and test sample 2 were then extracted with acetone and analyzed by gas chromatography to determine the recovery rate of the active ingredient. The ratio of the recovery rate of the active ingredient under light / under light was calculated using the following formula (1): Active ingredient recovery rate ratio (%) = (recovery rate of active ingredient in test sample 1) / (recovery rate of active ingredient in test sample 2) × 100 Equation (1) Furthermore, the same tests were conducted for Examples 2 to 9 and Comparative Examples 1 and 2, and the ratio of the recovery rate of the active ingredient under light / under dark was calculated, and the test results were evaluated according to the following criteria. (Evaluation criteria) A: 90%<(active ingredient recovery rate ratio)≦100% B: 85%<(active ingredient recovery rate ratio)≦90% C: (effective ingredient recovery rate ratio) ≦85%

[0061] <Visibility evaluation test> The pest prevention sheet products of Examples 1 to 9 and Comparative Examples 1 and 2 were each cut to a 10 cm x 10 cm piece and attached to a first-floor window of a building. Ten men and women in their 20s to 60s were asked to look at the first-floor window from outside the building, approximately 3 m away, and rate the visibility of the pest prevention sheet products using the following scale: (3 points: not noticeable even when attached to the window; 2 points: barely noticeable when attached to the window; 1 point: slightly noticeable when attached to the window). The scores of the 10 people were tallied and averaged, and the scores were evaluated using the following scale. (Evaluation criteria) A;2.5 points<(average score)≦3.0 points B;1.5 points<(average score)≦2.5 points C; 1.0 points ≦ (average score) ≦ 1.5 points

[0062] <Intrusion prevention effectiveness evaluation test> In a 6-tatami room with two sliding windows (80 cm long x 80 cm wide), the pest intrusion prevention sheet product of Example 1 was cut to a size of 10 cm x 30 cm and attached to the exterior of the window. After 50 days and 90 days, two sticky traps (20 cm x 20 cm) were suspended in the air near the windows of the 6-tatami room at a height of 1 m, and the windows were left open for 24 hours with an opening area of ​​approximately 6,400 cm2. After 24 hours, the number of flying pests caught in each sticky trap was counted. A similar test was also conducted in a room of the same design without the pest intrusion prevention sheet product. The repellency rate for each flying pest was calculated using the following formula (2), where C is the number of insects captured in the untreated control area without the pest intrusion prevention sheet product and T is the number of insects captured in the treated area with the pest intrusion prevention sheet product. Repellent rate (%)={(CT) / C}×100...Equation (2) The same tests were also carried out for Examples 2 to 9 and Comparative Examples 1 and 2, and the test results were evaluated according to the following criteria. (Evaluation criteria) A: 80%<(repellency rate)≦100% B;60%<(repellent rate)≦80% C;(Repellent rate)≦60%

[0063] [Table 1]

[0064] The test results in Table 1 show that all of the pest intrusion prevention sheet products of Examples 1 to 9, which have a solar reflectance of 15% or higher, showed favorable results (all ratings of B or higher) in the light stability evaluation test, visibility evaluation test, and intrusion prevention effect test. Furthermore, the pest intrusion prevention sheet products of Examples 1 to 5 and Example 7, which have a solar reflectance of 20% or higher and contain metofluthrin and / or transfluthrin as the pest intrusion prevention ingredient, also showed excellent results in the intrusion prevention effect test after 90 days of use. Among these, the pest intrusion prevention sheet products of Examples 1 to 3 and Example 7, which have a solar reflectance of 30% or higher, contain metofluthrin and / or transfluthrin as the pest intrusion prevention ingredient, and contain a resin layer with a blending ratio of the pest intrusion prevention ingredient to the resin of 10:90 to 20:80 by mass, showed particularly favorable results in the light stability test, visibility evaluation test, and intrusion prevention effect test.

[0065] On the other hand, Comparative Example 1, in which the solar reflectance was less than 15% and the pest invasion-preventing ingredient was metofluthrin, showed unsatisfactory results in the photostability evaluation test, visibility evaluation test, and invasion-preventing effect evaluation test after 90 days of use. Also, Comparative Example 2, in which the solar reflectance was less than 15% and the pest invasion-preventing ingredient was profluthrin, showed unsatisfactory results in the photostability evaluation test and invasion-preventing effect evaluation tests after 50 days of use and 90 days of use.

Claims

1. A sheet product having a resin layer in which a pest invasion prevention component is supported by a resin, The blending mass ratio of the pest invasion prevention component to the resin is 10:90 to 20:80 (mass ratio), The sheet product has one side serving as a drug volatilization surface and the other side serving as an adhesive surface, A pest intrusion prevention sheet product characterized in that, based on JIS A 5759, a test piece is prepared by attaching the adhesive side of the sheet product to a glass plate, and the spectral reflectance in the wavelength range of 300 to 2500 nm is measured with the outer surface of the agent volatilization side facing a light source to determine the solar reflectance, and the solar reflectance is 15% or more.

2. 2. The pest-preventing sheet product according to claim 1, wherein the pest-preventing component is metofluthrin and / or transfluthrin.

3. 3. The pest-preventing sheet product according to claim 1, wherein the solar reflectance is 20% or more.

4. The resin layer has a chemical-permeable sheet layer laminated on its chemical-evaporation surface side, the chemical-permeable sheet layer being permeable to the pest invasion prevention component, 4. The pest-preventing sheet product according to claim 1, wherein the chemical-permeable sheet layer is a perforated polyolefin-based sheet layer or a nonwoven fabric.

5. The pest invasion-preventing sheet product according to any one of claims 1 to 4, characterized in that the pest invasion-preventing component is metofluthrin.

6. 6. The pest-preventing sheet product according to claim 1, wherein the resin contains an ethylene copolymer resin.

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