JP7289114B2 - pest control sheet - Google Patents

Description

The present invention can be applied to the user's skin or clothes, placed on a predetermined place, etc., in order to prevent damage from pests such as insect bites by mosquitoes and horseflies. , to a pest control sheet for repelling or exterminating those pests.

Conventionally, in order to prevent damage from pests such as insect bites by mosquitoes, horseflies, etc., pest repellent sheets provided with pest repellent layers containing volatile compounds having pest repellent properties and the like have been known. there is By attaching the pest repellent sheet to the user's skin or clothes, or placing it in a specific storage container, the compound, which is the active ingredient, is gradually volatilized from the pest repellent layer, thereby repelling pests. It is intended to prevent damage from pests by, for example, keeping them out of reach.

As such a pest repellent sheet, for example, in Patent Document 1, a sheet-like base material impregnated with a volatile repellent and an adhesive part that allows the sheet-like base material to be detachable from an object to be adhered. is disclosed.

In addition, Patent Document 2 discloses a mesh sheet-like drug carrier made of twisted yarn impregnated with a pyrethroid compound and contained in a specific container.

Japanese Patent Application Laid-Open No. 2008-100932 Japanese Patent Application Laid-Open No. 2001-200239

However, in the invention of Patent Document 1, as a sheet-like substrate impregnated with a volatile repellent, paper materials such as paper board, filter paper, synthetic fiber mixed paper, nonwoven fabric, felt-like fabric, inorganic fiber sheet, ceramic or Although it is stated that generally porous structural materials such as plastic-based porous materials that have the ability to retain liquid (repellent) are preferable, they may come into contact with moisture during use, such as rain, fog, playing in the water, and water work. or contact with the sweat of the user, the moisture elutes the repellent, and the sheet-like base material is also impregnated with water, making it difficult for the repellent to volatilize. There is a problem that it is not possible to obtain sufficient pest control effects such as repelling and extermination against pests.

Also, in the invention of Patent Document 2, contact with water due to rain, fog, etc. when used outdoors causes the water to elute the repellent and the drug carrier to be impregnated with water. As a result, the pyrethroid compound becomes difficult to volatilize, and there is a problem that it is not possible to obtain a sufficient control effect such as repelling or exterminating pests.

Therefore, in the present invention, in order to prevent damage from insect pests such as insect bites such as mosquitoes and horseflies, it is attached to the user's skin or clothes, or placed on a predetermined place. It is a pest control sheet that has a control effect of repelling and exterminating these pests, and is in contact with moisture during use such as rain, fog, playing in water, water work, etc., and contact with the sweat of the user. To provide a pest control sheet having a sufficient pest control effect to prevent damage from pests in advance.

[1] That is, the present invention provides citronella extract, eucalyptus extract, mint extract
a volatile repellent containing at least one selected from substances, 1,8-cineole , and a drug that is a substrate impregnated with the repellent in an amount of 2.2 to 18.5 g / m ² with a retention layer,
The drug holding layer has voids on its surface and inside, and has a basis weight of 50 to 300 g/m ² ,
A pest control sheet characterized by comprising a multiporous material having a thickness of 10 to 500 μm and having a water contact angle of 100 to 180° on the surface of the drug holding layer impregnated with the repellent. be.

[ 2 ] A barrier layer provided on one side of the drug-retaining layer and impermeable to the repellent , and a barrier layer provided on the opposite side of the drug-retaining layer in the barrier layer, and The pest control sheet according to [1] above, characterized by comprising a pressure-sensitive adhesive layer that can be adhered to the surface of the sheet as described in [1] above.

According to the present invention, insect bites such as mosquitoes and horseflies can be prevented even if the product comes into contact with moisture during use such as rain, fog, water play, water work, etc., or comes into contact with the sweat of the user. In order to prevent damage from pests such as pests, it has a control effect such as sufficient repelling and extermination.

1 is a cross-sectional view of a pest-control sheet according to a first embodiment of the present invention; FIG. FIG. 4 is a cross-sectional view of a pest-control sheet according to a second embodiment of the present invention;

Hereinafter, embodiments of the pest control sheet of the present invention will be described in detail. In addition, when there is a notation indicating a range in the description, it includes the upper limit and the lower limit.

In the first embodiment shown in FIG. 1, the pest control sheet is composed only of the drug-retaining layer 1 impregnated with a drug such as a repellent or an insecticide. The insect pest control sheet of the first embodiment can be stored in a storage container having a vent and placed outdoors for use. In the second embodiment shown in FIG. 2, a barrier layer 2 and an adhesive layer 3 are laminated on a drug-holding layer 1 impregnated with a repellent or insecticide, and attached to the user's skin or clothes. It can be used indoors or outdoors by

The repellent in the present invention gradually volatilizes at a normal temperature of about 15 to 40° C. in the usage environment, and is a liquid active ingredient compound that repels pests such as mosquitoes and horseflies so that they do not cause blood-sucking behavior. It is, as such, or a composition that includes the compound as a component. In order to develop the repellent effect over time, it is preferable to use a repellent having a boiling point higher than the normal temperature. Further, the repellent is preferably of natural origin, which is highly safe for users.

Such repellents include, for example, grapefruit, geranium, rosemary, anise, armoise, ylang-ylang, orange, cananga, chamomile, cardamom, cajeput, clary sage, coriander, cypress, sandalwood, cedarwood, citronella, juniper berries, Ginger, Spearmint, Sage, Tea Tree, Nutmeg, Neroli, Pine Needle, Basil, Patchouli, Palmarosa, Fennel, Black Pepper, Petigren, Vetiver, Peppermint, Bergamot, Marjoram, Mandarin, Lemon Eucalyptus, Eucalyptus, Copaiba, Lime, Lavender, Lemon Essential oils extracted from plants such as , lemongrass, rosewood, shell ginger leaf, cinnamon bark, and mint are preferred. Then, the essential oil extracted from one of these plants can be blended, or the essential oil extracted from two or more plants can be blended and used.

Essential oils obtained from the above plants contain essential oil components, which are various volatile compounds. Grapefruit contains d-limonene, myrcene, α-pinene, and the like. Geranium contains citronellol, geraniol, linalool and the like. Rosemary contains α-pinene, camphor, 1,8-cineol and the like. Anise contains (E)-anethole, limonene, anisaldehyde, and the like. Armours contains 1,8-cineole, thujone, borneol, camphor, pinene, artemisinin (sesquiterpene lactone) linalool, nerol and the like. Ylang ylang contains linalool, β-potassium olefin, germacrene D and the like. Oranges contain limonene, myrcene, β-bisabolene, and others. Cananga contains caryophyllene, geranyl acetate, and terpineol. Chamomile contains farnesene, chamazulene, α-bisabolol oxide B, and the like. Cardamom contains 1,8-cineole, α-terpinyl acetate, limonene and the like. Cajeput contains 1,8-cineole, α-terpineol, para-cymene, and the like. Clary sage contains linalyl acetate, linalool, germacrene D, and the like. Clove contains eugenol, β-caryophyllene, eugenyl acetate and the like. Coriander contains d-linalool, camphor, α-pinene and the like. Cypress contains α-pinene, δ-3-carene, and the like. Sandalwood contains cis-α-santalol, cis-β-santalol, epi-β-santalol and the like. Cedarwood contains thujopsene, α-cedrene, cedrol, and the like. Citronella contains geraniol, limonene, citronellol, camphene, citronellal, geranyl acetate, α-pinene, α-terpineol, and the like. Juniper berries contain α-pinene, myrcene, β-farnesene and the like. Ginger contains ar-curcumene, α-zingiberene, β-sesquipherandrene, and the like. Spearmint contains (−)-carvone, dihydrocarvone, 1,8-cineole, and the like. Sage contains α-thujone, β-thujone and camphor. Tea tree contains terpinen-4-ol, γ-terpinene, α-terpinene and the like. Nutmeg contains α-pinene, sabinene, β-pinene and the like. Neroli contains linalool, limonene, beta-pinene, and others. Pine needles contain α-pinene, β-pinene, myrcene and the like. Basil contains linalool, methylchavicol, β-caryophyllene, and the like. Patchouli contains patchouli alcohol, α-patchulene, β-caryophyllene, and the like. Palmarosa contains geraniol, geranyl acetate, and linalool. Fennel contains (E)-anethole, limonene, methylchavicol, and the like. Black pepper contains β-3-caryophyllene, δ-3-carene, limonene, and the like. Petiglen contains linalyl acetate, linalool, α-terpineol, and the like. Vetiver contains vetiverol, vetibene, and α-vetivol. Bergamot contains limonene, linalyl acetate, linalool and the like. Marjoram contains terpinen-4-ol, cis-sabinene hydrate, para-cymene, and the like. Mandarin contains limonene, γ-terpinene, β-pinene and the like. Lemon eucalyptus contains citronellal, citronellol, citral, and the like. Eucalyptus contains 1,8-cineole, α-pinene, limonene, aromadendrene, p-cymen, t-pinocarbeol, globulol and the like. Copaiba contains β-potassium olefin, α-fumulene, α-copaene, t-α-bergamotten, germacrene D, cadinene, α-bisabolene, γ-mulolene, β-elemene, σ-elemene, etc. . Lime contains limonene, γ-terpinene, β-pinene, and the like. Lavender contains linalyl acetate, linalool, (Z)-β-ocimene, and the like. Lemons contain limonene, β-pinene, γ-terpinene, and the like. Lemongrass contains geranial, citral, and eremoll. Rosewood contains linalool, α-terpineol, cis-linalool oxide, and the like. Peppermint contains l-menthol, l-menthone, menthofuran, and the like. Cinnamon bark contains cinnamaldehyde, t-2-methoxycinnamaldehyde, coumarin, and the like. Shell ginger leaves contain 1,8-cineole, terpinen-4-ol, p-cymen, and the like. Mint contains l-menthol, l-menthone, menthofuran, and the like.

Insecticides containing pyrethroid compounds in the present invention are components having insecticidal action contained in pyrethrum and derivatives thereof, which are natural products extracted from plants and the like by methods such as extraction, and synthesized by organic synthesis methods. Any synthetic material is included. By using a pyrethroid compound, it acts on the nerves of insect pests such as mosquitoes and horseflies, and acts as an active ingredient with a controlling effect of exterminating these pests. In addition, like the repellent, it is preferable to use an insecticide having a boiling point higher than the normal temperature in order to exhibit the extermination effect over time. The insecticide is the pyrethroid compound itself or a composition containing the pyrethroid compound as one component.

Pyrethrin I<(1R,3R)-2,2-dimethyl-3-(2-methyl-1-propenyl)cyclopropanecarboxylic acid (1S)-2-methyl-4- oxo-3-(2Z)-2,4-pentadienyl-2-cyclopenten-1-yl ester>, pyrethrin II <(1R,3R)-3-[(1E)-3-methoxy-2-methyl-3- oxo-1-propenyl]-2,2-dimethylcyclopropanecarboxylic acid (1S)-2-methyl-4-oxo-3-(2Z)-2,4-pentadienyl-2-cyclopenten-1-yl ester>, Synerin I <(1R,3R)-2,2-dimethyl-3-(2-methyl-1-propenyl)cyclopropanecarboxylic acid (1S)-3-(2Z)-(2-butenyl)-2-methyl- 4-oxo-2-cyclopenten-1-yl ester>, synerin II <(1R,3R)-3-[(1E)-3-methoxy-2-methyl-3-oxo-1-propenyl]-2,2 -dimethylcyclopropanecarboxylic acid (1S)-3-(2Z)-(2-butenyl)-2-methyl-4-oxo-2-cyclopenten-1-yl ester>, jasmolin I <(1R,3R)-2 , 2-dimethyl-3-(2-methyl-1-propenyl)cyclopropanecarboxylic acid (1S)-2-methyl-4-oxo-3-(2Z)-2-pentenyl-2-cyclopenten-1-yl ester >, Jasmolin II <(1R,3R)-3-[(1E)-3-methoxy-2-methyl-3-oxo-1-propenyl]-2,2-dimethylcyclopropanecarboxylic acid (1S)-2- methyl-4-oxo-3-(2Z)-2-pentenyl-2-cyclopenten-1-yl ester>, allethrin I as a synthetic pyrethroid <2,2-dimethyl-3-(2-methyl-1-propenyl) Cyclopropanecarboxylic acid 2-methyl-4-oxo-3-(2-propenyl)-2-cyclopenten-1-yl ester>, allethrin II <3-(3-methoxy-2-methyl-3-oxo-1- propenyl)-2,2-dimethylcyclopropanecarboxylic acid 2-methyl-4-oxo-3-(2-propenyl)-2-cyclopenten-1-yl ester>, phthalthrin (also known as D-tetramethrin) <(1, 3-dioxo-4,5,6,7-tetrahydroisoindolin-2-yl)methyl 2,2-dimethyl-3-(2-methylprop-1-en-1-yl)cyclopropane-1-carboxylate >, resmethrin <(5-benzyl-3-furyl)methyl=2,2-dimethyl-3-(2-methylprop-1-en-1-yl)cyclopropanecarboxylate>, phenothrin<3-phenoxybenzyl=2 -dimethyl-3-(methylpropenyl)cyclopropanecarboxylate>, permethrin <3-phenoxybenzyl 3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylate>, cyphenothrin <cyano(3 -phenoxyphenyl)methyl = 2,2-dimethyl-3-(2-methylprop-1-en-1-yl)cyclopropanecarboxylate>, etofenprox <4-(4-ethoxyphenyl)-4-methyl- 1-(3-phenoxyphenyl)-2-oxapentane>, metofluthrin <2,2-dimethyl-3-(prop-1-en-1-yl)cyclopropanecarboxylic acid = 2,3,5,6-tetra Fluoro-4-(methoxymethyl)benzyl>, profluthrin <(1R,3R)-2,2-dimethyl-3-[(Z)-1-propenyl]cyclopropanecarboxylic acid = 2,3,5,6-tetra fluoro-4-methylbenzyl>, transfluthrin<(1R,3S)-3-[(E)-2,2-dichlorovinyl]-2,2-dimethylcyclopropanecarboxylic acid = 2,3,5,6 -tetrafluorobenzyl>, cyfluthrin <cyano(4-fluoro-3-phenoxyphenyl)methyl=3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropane-1-carboxylate>, and the like. Among the above, permethrin, phenothrin, allethrin, phthalthrin, restomethrin, metofluthrin, transfluthrin, and profluthrin are more preferred, and metofluthrin, transfluthrin, and profluthrin are most preferred. In addition, the above pyrethroid compounds can be used alone or in combination of two or more.

Repellents and insecticides can contain alcohols and polyhydric alcohols having dihydric or higher hydroxyl groups as solvents in addition to essential oils and pyrethroid compounds as active ingredients, respectively. Polyhydric alcohols have low volatility at room temperature and can remain in the drug-retaining layer 1 for a long time, and dissolve essential oils and pyrethroid compounds. can be sustained.

Preferred alcohols include ethanol and isopropyl alcohol. Preferred polyhydric alcohols include propylene glycol, dipropylene glycol, 1,3-butylene glycol, sorbitol, glycerin, diglycerin, polyglycerin, and polyethylene glycol. Moreover, said alcohol and polyhydric alcohol can be used individually by 1 type, or in combination of 2 or more types.

In addition, the drug-retaining layer 1 can be impregnated with either one of the repellent and the insecticide alone, or the repellent and the insecticide can be mixed in a predetermined ratio and impregnated into the drug-retaining layer 1. can.

The drug-retaining layer 1 is a substrate impregnated with at least one of a repellent and an insecticide. Further, the drug holding layer 1 has a sheet-like shape with a thickness like a thin plate or paper. In addition, the drug-retaining layer 1 is made of a material that does not undergo chemical denaturation with repellents or insecticides over time in order to maintain its control effect.

For example, the drug-retaining layer 1 may be a nonwoven fabric made of polyethylene or polypropylene, paper, fabric, or a porous structure made of a synthetic resin or an inorganic material. It is preferably a multi-porous material having voids that communicate with the surface. The drug-retaining layer 1 is dripped with a repellent or insecticide, or immersed in the repellent or insecticide under normal pressure or reduced pressure, and is filled and held in fine voids by the penetrating power of the drug. , impregnated.

The contact angle of water on the surface of the drug holding layer 1 is preferably 60 to 180°, more preferably 80 to 180°, and most preferably 100 to 180°. When the contact angle of water on the surface of the drug-retaining layer 1 is within this range, water such as rain, mist, and sweat can retain the drug, even though the drug-retaining layer 1 has voids communicating from the inside to the surface. Since it is difficult to wet and spread on the surface of the layer 1, and it does not penetrate into the fine voids of the drug holding layer 1 in a short time, the pores through which the repellent or insecticide volatilizes cannot be sealed. and pesticides do not elute, so the control effect can be sustained. The contact angle of water is preferably measured by the θ/2 method or the like according to the method described in JIS R3257 (1999) or the like.

Furthermore, the drug-retaining layer 1 preferably has a basis weight of 50 to 300 g/m ² and a thickness of 10 to 500 μm, more preferably a basis weight of 60 to 200 g/m ² and a thickness of 20 to 200 μm. . When the drug-retaining layer 1 has a basis weight and a thickness within these ranges, the drug-retaining layer 1 has pores that allow volatilization of a repellent or an insecticide from the drug-retaining layer 1 and diffusion to the outside. Moisture such as rain does not permeate the microscopic voids of the membrane, so the control effect can be maintained.

The barrier layer 2 is provided on one side of the drug holding layer 1 and is a member impermeable to repellents or insecticides. The barrier layer 2 also has a sheet shape like the drug-retaining layer 1, and is made of a material that does not undergo chemical denaturation with repellents or insecticides over time. By housing or laminating on another object through the barrier layer 2, the repellent or insecticide impregnated in the drug-holding layer 1 may seep out into other objects and cause physical or chemical denaturation. is preventing. The barrier layer 2 is preferably a composite material in which, for example, polyolefins such as polyethylene and polypropylene, polyethylene terephthalate, metals such as aluminum, aluminum, silica, and alumina are deposited on a plastic film.

The pressure-sensitive adhesive layer 3 is provided on the opposite side of the drug-retaining layer 1 in the barrier layer 2 and is a member that can be adhered to an adherend. By providing the adhesive layer 3, the adhesive layer 3 can be attached to the user's skin, clothes, etc. to prevent damage from pests during outdoor activities, etc., and can be peeled off when unnecessary.

As the adhesive layer 3, various adhesives such as an acrylic resin-based adhesive obtained by polymerizing an acrylic monomer and a urethane resin-based adhesive obtained by reacting an isocyanate group and a hydroxy group can be used. Such an adhesive is preferably formed in a layer on one side surface of the barrier layer 2 .

The release paper layer is provided on the opposite side of the drug holding layer 1 and the barrier layer 2 in the adhesive layer 3, and prevents the adhesive layer 3 from adhering to unintended adherends when not in use. It is a member that prevents dust from adhering to 3. The release paper layer is preferably attached to the pressure-sensitive adhesive layer 3 in advance when the product is collected. As the release paper layer, for example, it is preferable that a silicone resin is applied to the surface in contact with the pressure-sensitive adhesive layer 3 on a base material such as fine paper or glassine paper.

[Example 1]
12 mg of citronella extract, 9 mg of eucalyptus extract as essential oils, and 30 mg of a repellent consisting of 9 mg of propylene glycol as a solvent, impregnated with a circular drug-holding layer 1 having a diameter of 38 mm (basis weight: 60 g/m ² , thickness: 60 μm); , a barrier layer 2 and an adhesive layer 3 were laminated to prepare an adhesive pest control sheet.

[Example 2]
A circular drug holding layer 1 with a diameter of 38 mm (basis weight: 60 g/m ² , 60 μm thick), a barrier layer 2, and an adhesive layer 3 to prepare an adhesive pest control sheet.

[Example 3]
A circular drug holding layer 1 with a diameter of 38 mm (basis weight: 60 g/m ² , 60 μm thick), a barrier layer 2, and an adhesive layer 3 to prepare an adhesive pest control sheet.

[Example 4]
A circular drug-holding layer 1 with a diameter of 38 mm (basis weight: 60 g/m ² , thickness: 60 μm) impregnated with 30 mg of a repellent consisting of 5 mg of 1,8-cineole, which is an essential oil component, and 25 mg of propylene glycol, which is a solvent, and a barrier. An adhesive pest control sheet was prepared by laminating the layer 2 and the adhesive layer 3.

[Example 5 ]
1.0 mg of copaiba oil extract, 2.0 mg of eucalyptus extract, and 17 mg of propylene glycol and 10 mg of isopropyl alcohol as solvents. An adhesive pest control sheet was prepared by laminating a barrier layer 2 and an adhesive layer 3 (basis weight: 60 g/m ² , thickness: 60 μm).

[Comparative Example 1]
An adhesive insect pest control sheet was prepared in the same manner as in Example 1, except that a circular drug holding layer 1 having a diameter of 38 mm (basis weight: 40 g/m ² , thickness: 60 µm) was used.

[Water contact angle]
A water droplet of 1 μL, which is the amount of drizzle to light rain, is dropped on the drug-retaining layer 1 of the pest control sheet prepared in Examples and Comparative Examples, and the contact angle after 1 second is measured by a contact angle meter (Kyowa It was measured by the θ/2 method according to the method described in JIS R3257 (1999) by CAX-150 manufactured by Interface Science Co., Ltd.). The contact angle of the pest-controlling sheet of Example 1 was 112° (n=6), and the contact angle of the pest-controlling sheet of Comparative Example 1 could be measured by penetrating into the drug holding layer 1 at the same time as dropping. I didn't.

[Efficacy test]
With regard to the efficacy of each pest control sheet produced as described above, the control performance was evaluated by calculating the rate of inhibition of blood-sucking action by mosquitoes before and after water droplets were sprayed.

Specifically, first, each prepared pest control sheet was attached to the cuff of a long-sleeved shirt worn by the subject, and then the pest control sheet was attached to a roughly rectangular parallelepiped gauge with a side of about 25 cm. The wrist, including the cuff, was inserted into the gauge for 5 minutes. Then, among the approximately 30 Aedes albopictus (α) released in advance into the cage, the number (β) of Aedes aegypti that sucked blood on the palm and back of the hand of the subject was counted immediately after insertion. Even if no pest control sheet was attached, the subject's hand was inserted in the same manner, and blood sucking behavior was counted after the same amount of time had elapsed. In consideration of (β'), the corrected blood-sucking behavior inhibition rate was calculated from the following formula <1> at each time after insertion.
Blood-sucking behavior inhibition rate (%) = {(1-β/α) x 100-(1-β'/α) x 100} x 100/(1-β'/α) x 100
= {(β′−β)/α}×100/(1−β′/α) <1>
The test was conducted 3 times, and the arithmetic mean was calculated as the mean blood-sucking inhibition rate.

After completing the test, remove the subject's hand from the gauge, spray a predetermined amount of water droplets on each pest control sheet, conduct the same test as described above, and calculate the average blood-sucking action inhibition rate of Aedes aegypti. bottom. In this way, regarding the difference in the average blood-sucking behavior inhibition rate before and after spraying water droplets, pest control sheets with less than 2 points were evaluated as ⊚, and pest control sheets with 2 points or more and less than 5 points were evaluated as ∘. A pest control sheet with a point or more and less than 10 points was evaluated as Δ, and a pest control sheet with 10 points or more was evaluated as x. It was determined that the pest control sheet of

Table 1 shows the results of the contact angle and efficacy test on the surface of the drug-retaining layer 1 of the pest control sheet for Examples 1 to 5 and Comparative Example 1.

As shown in Table 1, in Examples 1 to 5 , the pest-control sheet having a contact angle within a specific range on the surface of the drug-retaining layer 1 did not contact the surface of the drug-retaining layer 1 even when water droplets were sprayed. Since the water droplets do not wet and spread and are difficult to penetrate into the internal voids, the repellent impregnated in the drug holding layer 1 can volatilize. It was found that blood-sucking behavior against mosquitoes could be prevented. However, with the insect pest control sheet of Comparative Example 1, the contact angle could not be measured. It was found that it was difficult to prevent blood-sucking behavior against mosquitoes after water treatment because it could not volatilize from the water.

From the above results, the insect pest control sheet of Example 1 does not come into contact with moisture on the surface of the drug-retaining layer 1 during use due to rain, fog, playing in water, water work, etc., or the sweat of the user. It was found that even if there is, it has sufficient control effect to prevent damage from pests.

DESCRIPTION OF SYMBOLS 1... Drug holding layer 2... Barrier layer 3... Adhesive layer

Claims (2)

a volatile repellent containing at least one selected from citronella extract, eucalyptus extract, mint extract, and 1,8-cineol ;
A drug-retaining layer, which is a substrate impregnated with the repellent in an amount of 2.2 to 18.5 g/m ² ,
The drug-retaining layer is made of a multiporous material having voids on the surface and inside and having a basis weight of 50 to 300 g/m ² and a thickness of 10 to 500 μm,
A sheet for pest control, wherein the contact angle of water on the surface of the drug-retaining layer impregnated with the repellent is 100 to 180°. a barrier layer provided on one side of the drug holding layer and impermeable to the repellent;
2. The pest control sheet according to claim 1, further comprising a pressure-sensitive adhesive layer provided on the barrier layer opposite to the drug-retaining layer and capable of adhering to an adherend .

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