JP2022034089A - Insect pest evasion adhesive tape - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide safe and convenient use with excellent storage stability of repellent content and adhesive properties during storage, excellent adhesion to clothes and skin during use, continuous insect repellent effect, and so on. It is an object of the present invention to provide an adhesive tape for pest repellent that can be used. A cloth containing a repellent, a protective layer, and a pressure-sensitive adhesive layer are laminated in this order, and the pressure-sensitive adhesive layer is a monomer mixture containing a (meth) acrylic acid alkyl ester and silane. It is characterized by containing a copolymer obtained by copolymerizing with a system monomer. [Selection diagram] Fig. 1

Description

The present invention relates to an adhesive tape for pest repellent. In particular, it relates to an adhesive tape for pest repellent that is used by attaching it to clothes or skin.

In recent years, infectious diseases (mosquito-borne infectious diseases) caused by being bitten by mosquitoes carrying pathogens such as dengue fever, chikungunya fever, Zika virus infection, Japanese encephalitis, and West Nile fever have become tropical and subtropical regions such as Central and South America and Asia. It has been reported that it is prevalent in Japan, which has become a social problem. As a preventive measure to prevent these infectious diseases, it is important not to be bitten by the mosquitoes that cause the infectious diseases.

By the way, as a method of repelling pests such as mosquitoes, flies, abs and mites, a liquid agent containing a repellent has been directly sprayed and applied to the skin. However, the method of directly spraying and applying a liquid containing such a repellent to the skin may cause some people to inhale it through the mouth, cause skin irritation, or cause allergic symptoms. ..
In addition, mosquito coils and electric mosquito repellents are used as another method for repelling pests. However, mosquito coils are not safe because they use fire, and electric mosquito coils are difficult to carry freely.

On the other hand, conventionally, a pest repellent adhesive sheet capable of impregnating an adhesive layer with a repellent and attaching it to clothes or skin has been known. However, in the case of a pressure-sensitive adhesive sheet in which the pressure-sensitive adhesive layer is impregnated with a repellent, the repellent and the components contained in the pressure-sensitive adhesive layer may react with each other, and the stability of the repellent content during storage may decrease.
Further, in order to prevent the stability of the repellent content from being lowered, a pest repellent adhesive sheet in which the layer containing the repellent and the adhesive layer are provided as separate layers is also known. However, when such a pest repellent adhesive sheet is stored in a packaging bag, the cohesive force of the adhesive layer is reduced by the repellent volatilized during storage, which may cause problems such as adhesive residue.
Based on the above, a pest repellent adhesive tape that is excellent in storage stability of repellent content and adhesive properties, has a continuous insect repellent effect, and can be used safely and easily is available. It is requested.

Utility model registration No. 3149381

In view of the above-mentioned current situation, the present invention has excellent storage stability of repellent content and adhesive properties during storage, has excellent adhesiveness to clothes and skin during use, has a continuous insect repellent effect, and is safe. It is an object of the present invention to provide an adhesive tape for pest repellent that can be easily used.

As a result of diligent studies to achieve the above object, the present inventors have found that the above problems can be solved, and have completed the present invention.

That is, the present invention is as shown below.
(1) A pest repellent adhesive tape in which a cloth containing a repellent, a protective layer, and an adhesive layer are laminated in this order, and the adhesive layer is a (meth) acrylic acid alkyl ester. An adhesive tape for repelling pests, which comprises a copolymer obtained by copolymerizing a monomer mixture containing the mixture and a silane-based monomer.
(2) The pest repellent adhesive tape according to (1), wherein the copolymer is a water-dispersible type.
(3) The copolymer is obtained by copolymerizing 0.005 to 2 parts by mass of a silane-based monomer with 100 parts by mass of a monomer mixture containing a (meth) acrylic acid alkyl ester (1) or. Adhesive tape for repelling pests according to (2).
(4) The monomer mixture containing the (meth) acrylic acid alkyl ester is 0.1 to 10 parts by mass of the carboxyl group-containing monomer in 100 parts by mass of the monomer mixture containing the (meth) acrylic acid alkyl ester. The pest repellent adhesive tape according to any one of (1) to (3).
(5) The pest repellent adhesive tape according to any one of (1) to (4), wherein the protective layer is a polyester film.
(6) The pest repellent adhesive tape according to any one of (1) to (5), wherein the repellent contains at least one selected from the group consisting of DEET, icaridin and plant essential oils.
(7) The pest repellent adhesive tape according to any one of (1) to (6), which further has an interlayer adhesive layer between the cloth and the protective layer.

The pest repellent adhesive tape of the present invention has excellent storage stability of repellent content and adhesive properties during storage, has excellent adhesiveness to clothes and skin when used, has a long-lasting insect repellent effect, and is safe. Can be easily used with.

FIG. 1 is a schematic cross-sectional view showing one aspect of the pest repellent adhesive tape of the present invention. In addition, all the figures are drawn enlarged in the direction perpendicular to the pest repellent adhesive tape in order to explain the concept of the present invention in an easy-to-understand manner.

In the pest repellent adhesive tape of the present invention, a cloth containing a repellent, a protective layer, and an adhesive layer are laminated in this order, and the adhesive layer contains a (meth) acrylic acid alkyl ester. It is characterized by containing a copolymer obtained by copolymerizing a monomer mixture and a silane-based monomer.

The repellent in the present invention is not particularly limited as long as it is a component having a repellent effect and a blood sucking inhibitory effect on pests. Examples of the pest repellent include DEET (N, N-diethyl-3-methylbenzamide), icaridin (1-piperidincarboxylic acid, 2- (2-hydroxyethyl) -1-methylpropyl ester), IR3535 (3-). (Nn-butyl-N-acetyl) aminopropionate ethyl ester), plant essential oils and the like. Among them, DEET, icaridin, and plant essential oils are preferably used.

Plant essential oils include terpenoid-based plant essential oils containing monoterpen or sesquiterpen as the main components, plant essential oils containing terpenoid ketones, plant essential oils containing terpenoid alcohol (eg, linalol, geraniol, citronellol, etc.), and plants containing terpenoid aldehydes. These include essential oils (eg, citral, citroneral, etc.) and other plant essential oils (eg, bergamot, citronella, lavender, lemongrass, eucalyptus, etc.).

Such repellents may be used alone or as a mixture of two or more. In addition, the repellent is contained in the fabric described later. As for the content of the repellent to be contained in the fabric, the upper limit is preferably 160 g / m ² , more preferably 140 g / m ² , and the lower limit is preferably 60 g / m ² , more preferably 80 g / m ² on an area basis. Is. When the content of the repellent is 60 to 160 g / m ² on an area basis, the balance between the volatilization rate of the repellent (immediate effect of the volatilization effect) and the sustainability of the volatilization effect is good.

The cloth in the present invention refers to a cloth-like cloth such as a woven cloth, a non-woven fabric, or a knitted cloth, and has an uneven surface. Due to the unevenness of the surface, the repellent contained in the fabric has an effect of being excellent in diffusivity (volatilization) into the atmosphere. Among the above-mentioned fabrics, the non-woven fabric is made into a cloth by adhering or entwining fibers by thermal, mechanical or chemical action, and therefore, it is less likely to fray and is preferably used.

Examples of the material of the fabric include cotton (cotton), silk, linen, pulp, natural fibers such as wool, polyester (for example, polyethylene terephthalate), polyolefin (for example, polyethylene, polypropylene, etc.), polyamide (for example, nylon, etc.). ), Synthetic fibers such as acrylic resin and polyurethane, semi-synthetic fibers such as acetate fibers, regenerated fibers such as rayon fibers and cupra fibers can be used. One kind of material selected from each of the above-mentioned materials may be used alone, or two or more kinds of materials may be mixed and used. Further, in a cloth made of a large number of fibers, the materials of all the fibers in the cloth may be the same, or the cloth may be formed by blending fibers made of different materials.

The upper limit of the bulk density of the fabric is preferably 300 kg / m ³ , more preferably 280 kg / m ³ , still more preferably 270 kg / m ³ , and the lower limit is preferably 50 kg / m ³ , more preferably 70 kg / m ³ . , More preferably 80 kg / m ³ . The upper limit of the thickness of the fabric is preferably 2000 μm, more preferably 1600 μm, still more preferably 1500 μm, and the lower limit is preferably 300 μm, more preferably 400 μm, still more preferably 500 μm. The bulk density in the present invention is calculated by dividing the basis weight (g / m ² ) of the fabric by the thickness (μm).
Since the bulk density of the cloth is 50 to 300 kg / m ³ and the thickness of the cloth is 300 to 2000 μm, not only the storage stability (retention) of the repellent contained in the cloth is excellent, but also from the cloth. The rapid diffusivity (volatile) of the repellent into the atmosphere can also be obtained.

The upper limit of the basis weight of the fabric is preferably 200 g / m ² , more preferably 180 g / m ² , and the lower limit is preferably 70 g / m ² , more preferably 80 g / m ² . The upper limit of the diameter of the fibers constituting the fabric is preferably 20 μm, more preferably 10 μm, and the lower limit is preferably 0.5 μm, more preferably 1 μm.

The protective layer of the present invention is preferably a film made of a material that is substantially impermeable to the repellent. Materials that are substantially impermeable to repellents include, for example, polyester (eg, polyethylene terephthalate), polyolefin (eg, polyethylene, polypropylene, etc.), polyamide (eg, nylon, etc.), polyvinyl chloride, polyvinylidene chloride, polycarbonate. , Polyvinyl alcohol, ethylene-vinyl acetate copolymer and the like can be used. Among them, polyester is preferably used, and polyethylene terephthalate is most preferably used.
The presence of such a protective layer can prevent the repellent contained in the fabric from migrating to the pressure-sensitive adhesive layer, which is considered to contribute to the storage stability of the repellent content in the fabric.

The upper limit of the thickness of the protective layer is preferably 75 μm, more preferably 50 μm, and the lower limit is preferably 12 μm, more preferably 25 μm. When the thickness of the protective layer exceeds 75 μm, the pest repellent adhesive tape lacks flexibility, so that when it is attached to clothes or skin, it may be difficult to follow the surface shape of the clothes or skin and the adhesiveness may be inferior. Further, when the thickness of the protective layer is less than 12 μm, it becomes difficult to prevent the repellent from being transferred to the pressure-sensitive adhesive layer.

The pressure-sensitive adhesive layer in the present invention contains a copolymer obtained by copolymerizing a monomer mixture containing a (meth) acrylic acid alkyl ester and a silane-based monomer. The monomer mixture containing (meth) acrylic acid alkyl ester is a monomer mixture containing (meth) acrylic acid alkyl ester as a main component, preferably 50 to 100% by mass, and is a silane-based monomer. Is not included in the monomer mixture.

As the (meth) acrylic acid alkyl ester, a (meth) acrylic acid alkyl ester having an alkyl group having 1 or more carbon atoms, preferably 1 to 15 carbon atoms is used. Specifically, for example, methyl (meth) acrylic acid, Ethyl (meth) acrylate, n-butyl (meth) acrylate, isobutyl (meth) acrylate, pentyl (meth) acrylate, hexyl (meth) acrylate, heptyl (meth) acrylate, n (meth) acrylate -Octyl, isooctyl (meth) acrylate, 2-ethylhexyl (meth) acrylate, n-nonyl (meth) acrylate, isononyl (meth) acrylate, decyl (meth) acrylate, undecyl (meth) acrylate, ( Examples thereof include (meth) acrylic acid alkyl esters having a linear or branched alkyl group such as tridecyl acrylate, and these may be used alone or in combination of two or more. Of these, n-octyl acrylate, isooctyl acrylate, 2-ethylhexyl acrylate, n-nonyl acrylate, isononyl acrylate, methyl methacrylate, ethyl methacrylate, and n-butyl methacrylate are preferably used.

The silane-based monomer is not particularly limited as long as it is a polymerizable compound having a silicon atom and can be copolymerized with the (meth) acrylic acid alkyl ester. Examples of such silane-based monomers include 3- (meth) acryloyloxypropyltrimethoxysilane, 3- (meth) acryloyloxypropyltriethoxysilane, and 3- (meth) acryloyloxypropylmethyldimethoxysilane, 3 -(Meta) acryloyloxypropylmethyldiethoxysilane, vinyltrimethoxysilane, vinyltriethoxysilane, 4-vinylbutyltrimethoxysilane, 4-vinylbutyltriethoxysilane, 8-vinyloctyltrimethoxysilane, 8-vinyloctyl Examples thereof include triethoxysilane, 10-methacryloxydecyltrimethoxysilane, 10-acryloyloxydecyltrimethoxysilane, 10-methacryloxydecyltriethoxysilane, 10-acryloyloxydecyltriethoxysilane, and the like. The body may be used alone or in combination of two or more.

Among them, a silane-based monomer having a (meth) acryloyl group such as a (meth) acryloyloxyalkylsilane derivative is preferable in that it has excellent copolymerizability with a (meth) acrylic acid alkyl ester, and such a silane-based monomer is preferable. Examples of the monomer include 3- (meth) acryloyloxypropyltrimethoxysilane, 3- (meth) acryloyloxypropyltriethoxysilane, 3- (meth) acryloyloxypropylmethyldimethoxysilane, and 3- (meth) acryloyl. Examples thereof include oxypropylmethyldiethoxysilane, and in particular, 3-methacryloyloxypropyltrimethoxysilane, 3-methacryloyloxypropyltriethoxysilane, and 3-acryloyloxypropyltrimethoxysilane are preferably used.

The silane-based monomer is preferably 0.005 to 2 parts by mass, more preferably 0.005 to 1 part by mass, still more preferably, with respect to 100 parts by mass of the monomer mixture containing the (meth) acrylic acid alkyl ester. Copolymerizes 0.01 to 0.4 parts by mass. If the copolymerization amount of the silane-based monomer exceeds 2 parts by mass, the immobility may decrease, and if it is less than 0.005 parts by mass, the cohesive force tends to decrease and problems such as adhesive residue may occur. ..

The monomer mixture containing the (meth) acrylic acid alkyl ester contains a carboxyl group that can be copolymerized with the (meth) acrylic acid alkyl ester from the viewpoint of hydrolysis of the silane-based monomer and adjustment of the obtained adhesive properties. It is preferable to include a monomer.

The carboxyl group-containing monomer copolymerizable with the (meth) acrylic acid alkyl ester is a polymerizable compound containing a carboxyl group in its structure and is copolymerizable with the (meth) acrylic acid alkyl ester. If there is, the present invention is not particularly limited, and examples thereof include (meth) acrylic acid, itaconic acid, maleic acid, maleic anhydride, and 2-methacryloyloxyethyl succinic acid. In particular, acrylic acid and 2-methacryloyloxyethyl succinic acid are preferable.

The carboxyl group-containing monomer is preferably 0.1 to 10 parts by mass, more preferably 0.5 to 8 parts by mass, still more preferably, in 100 parts by mass of the monomer mixture containing the (meth) acrylic acid alkyl ester. Contains 1 to 6 parts by mass. If the amount of the carboxyl group-containing monomer is less than 0.1 parts by mass, the silane-based monomer is not hydrolyzed and the cross-linking reaction is not promoted, so that the insolubilized component is reduced and there is a possibility that adhesive residue may be generated at the time of peeling. On the other hand, if it exceeds 10 parts by mass, the viscosity of the solution during the polymerization reaction becomes high, which may make it difficult to produce the copolymer.

The copolymer contained in the pressure-sensitive adhesive layer of the present invention is, for example, a conventional polymerization obtained by adding a silane-based monomer to a monomer mixture containing (meth) acrylic acid alkyl ester as a main component and mixing them. It can be made into a copolymer depending on the method. In particular, in the present invention, it is preferable from the viewpoint of environmental hygiene and the increase in the molecular weight of the copolymer, and it is preferable to prepare the copolymer as a water-dispersible copolymer that does not use an organic solvent at the time of producing the copolymer.

In addition to the above-mentioned pressure-sensitive adhesive, various additives can be contained in the pressure-sensitive adhesive layer, if necessary. Examples of additives include plasticizers, thickeners, cross-linking agents, tackifiers, antioxidants, heat-resistant stabilizers, light stabilizers, antistatic agents, lubricants, nucleating agents, flame retardants, pigments, dyes and the like. These may be included alone or in combination of two or more in the pressure-sensitive adhesive layer.

The pressure-sensitive adhesive layer of the present invention may be subjected to a crosslinking treatment in order to impart an appropriate cohesive force. The cross-linking treatment includes physical cross-linking by irradiation with ionizing radiation such as electron beam, γ-ray, and X-ray, and chemical cross-linking with a cross-linking agent. Cross-linking is performed from the viewpoint of good handleability and reproducibility. It is preferable to carry out a chemical cross-linking treatment with an agent. For example, a cross-linking treatment is performed by adding a cross-linking agent to a pressure-sensitive adhesive composition containing a material constituting the pressure-sensitive adhesive layer and heat-treating it. As such a cross-linking agent, a cross-linking agent used in the cross-linking treatment such as an isocyanate-based cross-linking agent, a peroxide-based cross-linking agent, and a metal chelate-based cross-linking agent can be used.

The pressure-sensitive adhesive layer subjected to the cross-linking treatment as described above maintains an appropriate balance between adhesiveness and cohesiveness depending on the degree of cross-linking, but the molecular weight and molecular weight distribution of the pressure-sensitive adhesive are also adjusted for these adjustments. It has an impact.

The thickness of the pressure-sensitive adhesive layer can be appropriately determined depending on the site of use and the type of pressure-sensitive adhesive, but the upper limit of the thickness of the pressure-sensitive adhesive layer is preferably 100 μm, more preferably 80 μm, and the lower limit is preferably 10 μm. , More preferably 20 μm. If the thickness of the adhesive layer is less than 10 μm, it may be peeled off during application due to insufficient adhesive force to clothes or the skin surface. On the other hand, if the thickness of the pressure-sensitive adhesive layer exceeds 100 μm, the pressure-sensitive adhesive may protrude from the end of the pressure-sensitive adhesive layer and cause adhesive stains.

In the pest repellent adhesive tape of the present invention, the fabric and the protective layer are directly or indirectly laminated. In the present invention, "directly laminating" means laminating the cloth and the protective layer without intervening between the cloth and the protective layer, and "indirectly laminating" means laminating the cloth and the protective layer indirectly. The fabric and the protective layer are laminated with an inclusion, specifically, an adhesive layer or an adhesive layer between the fabric and the protective layer. In order to laminate the fabric and the protective layer without peeling off, it is preferable to further have an interlayer adhesive layer between the fabric and the protective layer.

Examples of the material constituting the interlayer pressure-sensitive adhesive layer include the material used for the pressure-sensitive adhesive layer described above, which may be the same as or different from the material used for the pressure-sensitive adhesive layer. The upper limit of the thickness of the interlayer pressure-sensitive adhesive layer is preferably 60 μm, more preferably 50 μm, and the lower limit is preferably 20 μm, more preferably 30 μm.

The pest repellent adhesive tape of the present invention covers the surface of the pressure-sensitive adhesive layer with a release liner until it is used, if necessary, in order to prevent contamination of the surface of the pressure-sensitive adhesive layer. As this release liner, those used for general adhesive tapes can be used. Specific examples of the base material for the release liner include plastic films such as polyethylene terephthalate film, polyimide film, polypropylene film, polyethylene film, polycarbonate film, and polyester film, and metal-deposited plastic film obtained by depositing metal on these films; Papers such as Japanese paper, Western paper, kraft paper, glassin paper, and high-quality paper; base materials made of fibrous materials such as non-woven fabrics and cloths; metal foils, etc. A film coated with a release agent having peeling performance such as a fluororesin can be used as a release liner.

The pest repellent adhesive tape of the present invention is preferably enclosed in a bag made of a material that is substantially impermeable to the repellent until use, and is stored or transported as a package. Examples of the method for producing the package include a method in which a sheet-shaped adhesive tape for repelling pests is wrapped with a packaging material, and the periphery thereof is heat-sealed and sealed. Examples of the packaging material include sheet-like and film-like materials, which are moisture-impermeable and heat-sealable from the viewpoint of preventing volatilization of the repellent, and from the viewpoint of ease of packaging and airtightness. desirable. Specifically, plastic sheets having heat-sealing properties such as polyethylene, ionomer resin, ethylene-vinyl acetate copolymer, ethylene-vinyl alcohol copolymer, polyacrylonitrile-based copolymer, and polyvinyl alcohol-based copolymer are the most suitable. It is preferable to use a packaging material used for the inner layer, in which a gas or moisture permeable film such as a polyester film or a metal foil (aluminum foil or the like) is further laminated on the plastic sheet.
The thickness of the packaging material is usually 10 μm to 200 μm.

If the adhesive component flows out from the side surface of the adhesive layer of the adhesive tape for pest repellent, there is a concern that the handling property may deteriorate, such as when it is taken out from the package. Therefore, the packaging material may be embossed or the above-mentioned peeling may occur. It is preferable to appropriately select a packaging form such as dry edge processing in which the liner portion is slightly larger than the main body of the adhesive tape for repelling pests, and blister molding in which the contact area is processed to be small.
For the pest repellent adhesive tape in the package, take out the pest repellent adhesive tape by tearing the package immediately before use, peel off the release liner, and attach the exposed adhesive surface to the clothes or skin surface. Can be done.

Hereinafter, the present invention will be described in more detail with reference to examples, but these examples are not limited to the present invention. In the following, "parts" and "%" mean "parts by mass" and "% by mass", respectively.

2-ethylhexyl acrylate 86.5 parts, methyl methacrylate 9.6 parts, acrylate 3.9 parts, 3-methacryloyloxypropyltrimethoxysilane 0.05 parts, 1-dodecanethiol 0.05 parts, polyoxyethylene 3 parts of sodium lauryl ether sulfate and 44.2 parts of water were emulsified with a homomixer to obtain a monomer emulsion. Put 5.2 parts of the monomer emulsion and 56.3 parts of water into a reaction vessel (separable flask) equipped with a cooling tube, a nitrogen introduction tube, a thermometer and a stirrer, and while introducing an inert gas, 1 Stir for hours. 0.1 part of 2,2'-azobis [N- (2-carboxyethyl) -2-methylpropionamidine] hydrate was added thereto as a polymerization initiator, and the mixture was reacted at 60 ° C. for 1 hour, and then the above-mentioned monomer was added. 141.1 parts of the emulsion was added dropwise over 4 hours and aged for 3 hours, and aqueous ammonia was added to adjust the pH to 7, to prepare a solution of the water-dispersed copolymer.

(Example 1)
The above-mentioned water-dispersed copolymer solution is applied to one side of a polyethylene terephthalate film (thickness: 38 μm) so that the thickness after drying is 40 μm, and dried to form an interlayer pressure-sensitive adhesive layer. A polypropylene non-woven fabric (basis weight: 85 g / m ² , thickness: 660 μm, bulk density: 129 g / m ³ ) was laminated on the agent layer to obtain a laminate.
Next, the above-mentioned aqueous dispersion type copolymer solution was applied to a release paper (thickness: 97 μm) peeled with a silicone-based resin on one side so that the dried thickness would be 40 μm, and dried to obtain an adhesive layer. After forming, the polyethylene terephthalate film surface of the above-mentioned laminate is bonded to the adhesive surface of the adhesive layer, and an adhesive tape composed of a non-woven fabric / interlayer adhesive layer / polyethylene terephthalate film / adhesive layer / release paper is formed. Obtained.
The obtained adhesive tape was cut into a width of 35 mm and a length of 35 mm, and then 0.1 g of a repellent (product name: NR-2080: manufactured by RIKEN Fragrance Co., Ltd.) was dropped onto the non-woven fabric surface to obtain a pest repellent adhesive tape. ..
Next, the obtained pest repellent adhesive tape was laminated with a polyethylene terephthalate film (thickness: 12 μm) / aluminum foil (thickness: 7 μm) / ethylene-vinyl alcohol copolymer film (thickness: 15 μm) by dry laminating. The film was sealed so that the film side made of an ethylene-vinyl alcohol copolymer was on the inner surface, and a package of an adhesive tape for repelling pests was obtained.

(Comparative Example 1)
In Example 1, instead of the aqueous dispersion type copolymer solution, an acrylic copolymer (isononyl acrylate: 2-methoxyethyl acrylate: acrylic acid = 65 parts: 30 parts: 5 parts copolymer). A package of adhesive tape for repelling pests was obtained in the same manner except as a solution.

(Polyester cloth adhesive strength)
The packages of Example 1 and Comparative Example 1 were stored in a thermostat controlled at 50 ± 2 ° C. for 2 weeks.
For the pest repellent tape (width 35 mm, length 35 mm) before storage and after storage for 2 weeks, the release paper was peeled off, and the adhesive surface was prepared to have a width of 50 mm and a length of 50 mm. After being attached to EW-7600 (manufactured by Nippon Baileen Co., Ltd.), a load of 500 g was placed on the pest repellent tape for 30 seconds and crimped. After that, the load is removed, and the product is stored for 6 hours in an environment of temperature: 23 ± 2 ° C. and relative humidity: 50 ± 5%. Peeling was performed at 180 ° and a speed of 300 mm / min, and the peeling force at that time was measured (n = 3).

(Remaining glue)
In the above-mentioned polyester cloth adhesive strength, the presence or absence of adhesive residue on the adherend when the pest repellent tape was peeled off from the adherend was visually evaluated (n = 3).

Table 1 shows the results of the polyester cloth adhesive strength and the adhesive residue.

As shown in Table 1, Example 1 of the present invention has a small change in adhesive strength with time from the initial stage even after storage at 50 ° C. for 2 weeks as compared with Comparative Example 1, and no adhesive residue is generated. Good adhesive properties were maintained.
On the other hand, in Comparative Example 1, it was shown that the adhesive strength changed significantly with time from the initial stage, and that adhesive residue was generated during peeling after storage at 50 ° C. for 2 weeks, resulting in poor storage stability. ..

According to the present invention, it is possible to provide an adhesive tape for pest repellent, which is excellent in storage stability of adhesive properties during storage and has improved stability over time and reliability. Further, it is possible to provide a pest repellent adhesive tape which is excellent in stickability to clothes and skin, has a continuous insect repellent effect, and can be used safely and easily.

1 Cloth (containing repellent)
2 Interlayer adhesive layer 3 Adhesive layer 4 Peeling liner 5 Defensive layer 10 Insect repellent adhesive tape

Claims (7)

A pest repellent adhesive tape in which a cloth containing a repellent, a protective layer, and an adhesive layer are laminated in this order.
The pressure-sensitive adhesive tape is a pest repellent pressure-sensitive adhesive tape, which comprises a copolymer obtained by copolymerizing a monomer mixture containing a (meth) acrylic acid alkyl ester and a silane-based monomer. The pest repellent adhesive tape according to claim 1, wherein the copolymer is a water-dispersible type. The invention according to claim 1 or 2, wherein the copolymer is obtained by copolymerizing 0.005 to 2 parts by mass of a silane-based monomer with 100 parts by mass of a monomer mixture containing a (meth) acrylic acid alkyl ester. Adhesive tape for repelling pests. The monomer mixture containing the (meth) acrylic acid alkyl ester contains 0.1 to 10 parts by mass of the carboxyl group-containing monomer in 100 parts by mass of the monomer mixture containing the (meth) acrylic acid alkyl ester. The adhesive tape for repelling pests according to any one of claims 1 to 3. The pest repellent adhesive tape according to any one of claims 1 to 4, wherein the protective layer is a polyester film. The pest repellent adhesive tape according to any one of claims 1 to 5, wherein the repellent comprises at least one selected from the group consisting of DEET, icaridin and plant essential oils. The pest repellent adhesive tape according to any one of claims 1 to 6, further comprising an interlayer pressure-sensitive adhesive layer between the cloth and the protective layer.

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