JP2002205903A - Method for applying insecticidal composition to insect proof net and insecticidal composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for applying an insecticidal composition to an insect proof net so as to be able to improve durability to washing and continuation of the insect proof effect by treating the insect proof net which is generally commercialized with the insecticidal composition in order to prevent bite, discomfortable feeling and dermatitis caused by insect pests such as mosquito, gnat and ceratopogonid or diseases such as Japanese encephalitis or malaria caused by these insect pests, and to obtain the insecticidal composition for applying to the insect proof net. SOLUTION: This method for applying the insecticidal composition to the insect proof net so as to improve durability to washing and continuation of insect proof effect is characterized by immersing the insect proof net into a water bath containing the insecticidal composition comprising ethofenprox as an insecticidally active ingredient and a nonionic or anionic water-based polymer.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a simple and low-cost washing durability of an insect repellent net by simultaneously immersing or coating one or more insecticidal active ingredients and an aqueous polymer in the insect repellent net. The present invention relates to a method for processing an insect repellent net for improving insect repellency and an insecticidal composition containing an aqueous polymer for processing an insect repellent net.

[0002]

2. Description of the Related Art Diseases transmitted by blood-sucking pests such as mosquitoes, blackflies, and squid sucking blood from the skin of a human body by biting are extremely numerous worldwide. In Japan, Japanese encephalitis was once transmitted by Culex pipiens,
In recent years, due to the improvement of the environment and the hermeticity of the house ring structure, the damage caused by these pests has been reduced.
However, in the subtropics and tropics, various tropical diseases such as malaria, filariasis, dengue fever, and yellow fever transmitted by blood-sucking pests have been observed, causing a large number of victims and causing serious problems.

[0003] Further, in a typical animal house such as a poultry house, a pig house, and a cowshed, and a dog house, for example, chicken braids that transmit chicken leukocytosinopathy, Culex pipiens that transmit Japanese encephalitis, and mosquitoes that transmit dog filararia Mosquitoes and flies, etc. are seen, leading not only to the spread of epidemics of animals, but also to the spread of infectious diseases of humans, and furthermore, the nervousness of animals due to stimulation by various insects,
Various problems have occurred in animals, such as a decrease in egg production rate and a decrease in milk production. Many of these barns and subtropical or tropic homes have wide open windows to overcome the need for ventilation and heat, making it more difficult to control these pests. That is the fact.

[0004] As a method of controlling such pests, for example, in the case of mosquitoes, there is a certain method of preventing the occurrence of mosquitoes.
Puddles must be eliminated as a source of mosquito larvae, bow hula. Mosquitoes lay eggs in ponds, fields, other wetlands, as well as in puddles and empty cans that are created each time it rains, so it is not easy to completely eradicate them, as is other pests. It can be said that. As a general control method, for example, as in malaria control in a subtropical or tropical region, a method by a residual spray treatment of spraying an organophosphorus insecticide or the like on a house indoor wall or an outer wall is known. As mentioned above, livestock barns and houses in subtropical or tropical regions have very few walls and are open, making it difficult to achieve effective control. However, the possibility of direct contact is high, which is not desirable in terms of safety.

In recent years, instead of this residual spray, a method of preventing insect pests by treating insect repellent active ingredients in insect repellent nets or mosquito nets and installing them in windows or entrances of houses or using them at bedtime has been implemented. ing. For example, a method is known in which an organic phosphorus-based insecticide, a carbamate-based insecticide and a pyrethroid-based insecticide are applied to a net and used as an insect repelling net (Japanese Patent Application Laid-Open No. 60-180536). But,
The insect repellent net obtained by these methods has a large run-off of the chemical into water during washing, and it has been difficult to prolong the insect repellent effect.
In order to improve these, a synthetic fiber resin and a chemical are kneaded in advance, and then a method of producing a melt-spun insect repellent fiber (Japanese Patent Laid-Open No.
No. 65509) is known, but is currently not accepted in subtropical or tropical regions where the price of products is high and insect repellent nets are most needed. Also, as in the present invention, there are known several methods which use a polymer substance or the like to suppress the dissolution of the drug by washing and long-term residual effect of the drug, but a method which can be used safely and easily by the user. Hard to say. For example, a method in which a drug containing a polymer substance soluble in an organic solvent, an active ingredient and an organic solvent, and in some cases, a surfactant-containing drug is diluted with water, or is treated as an undiluted solution in an insect repellent net by dipping or spraying. (Japanese Patent Application Laid-Open No. 2-289186) is known, but there is a problem in terms of odor and safety for the user because an organic solvent is used. Also, a method is known in which a resin and a cross-linking agent are used in combination, and the active ingredient is processed into synthetic fibers or the like and then heat-treated at about 100 ° C. (Japanese Patent Application Laid-Open No. 6-346373). is not.

[0006]

DISCLOSURE OF THE INVENTION The present invention overcomes the conventional disadvantages of low washing durability and short insect repellent effect, and enables the user to easily carry out chemical treatment at low cost, and has a high washing durability.
It is an object of the present invention to provide a method for processing an insect repellent net imparted with insect repellency and an aqueous polymer-containing insecticidal composition for treating the insect repellent net.

[0007]

Means for Solving the Problems The inventors of the present invention have conducted intensive studies in order to provide the insect repellent net with the washing durability and the insect repellency of the drug. As a result, the aqueous polymer was diluted with water simultaneously with the insecticidal composition. Then, it was found that by dipping or applying to the insect repellent net and then drying, the washing durability and the insect repellency of the chemical were greatly improved.

The present inventor has also found that it is possible to add an aqueous polymer to a water-based formulation, for example, a flowable agent, a microcapsule, or an EW agent, and to form a formulation containing the aqueous polymer. The invention has been completed. That is, the present invention provides a pesticidal composition having improved selective durability and insect repellency, wherein the insecticide composition comprises at least one or more pesticidally active ingredients and a water bath containing an aqueous polymer. This is a method for processing objects into insect nets.

[0009]

Next, the present invention will be described in detail. The nonionic or anionic aqueous polymer used in the present invention refers to an aqueous liquid of a synthetic or natural resin, and specifically, an aqueous synthetic resin dispersion, an aqueous synthetic resin emulsion, an aqueous synthetic resin, an aqueous natural resin dispersion, A resin emulsion is a natural resin aqueous solution. The synthetic resin emulsion is a urethane resin emulsion, a vinyl acetate resin emulsion, an acrylic resin emulsion, an ethylene vinyl acetate resin emulsion, and the urethane resin emulsion is a polyether urethane resin emulsion, a polyester urethane resin emulsion. And polycarbonate-based urethane resin emulsions. Specifically, Toxanone NX-4300, Toxanone NWS-145, Toxanone NXA-3004, Toxanone NXA-3005, Toxanone NX-2505,
Examples include, but are not limited to, Toxanone NA-150, Toxanone NA-200, and Toxanone NA-300 (products of Sanyo Chemical Industries, Ltd.). The amount used 0.01g~6g as a resin amount to be included in the insect screen 1 m ² per aqueous polymer, preferably 0.02g~3g the resin amount to be included in the insect screen 1 m ² per aqueous polymer. The amount of the aqueous polymer contained in the water-based preparation is 0.1 to 45 parts by weight, preferably 0.2 to 20 parts by weight, as the contained resin.

The insecticidal active ingredients used in the present invention include, for example, allesulin, resmethrin, tefluthrin,
Bifenthrin, permethrin, cypermethrin, cyhalothrin, cyfluthrin, fenpropatrin, tralomethrin, cycloprothrin, fenvalerate, flucitrinate, fluvalinate, phenothrin, flamemetryn, deltamethrin, acrinatrine, empentrin, beta cyfluthrin, zetacypermeth These isomers such as phosphorus or pyrethrum extract, DDVP, cyanophos, fenthion, fenitrothion, dichlorfenthion, tetrachlorvinphos, dimethylvinphos, chlorfenvinfoss, propafos, methylparathion, temefos, phoxime, acephate, isofenfos, Salicion, DEP, EPN, ethion, mecarbam, pyridafenthion, diazinon,
Pirimiphos-methyl, etrimfos, isoxathion, quinalphos, chlorpyrifos-methyl, chlorpyrifos, hosalon, fesmet, methidathion, oxidebrofos, bamidion, malathion, fentoate, dimethoate, formotion, thiomethone,
Ethyl thiometon, folate, terbufos, profenophos, prothiophos, sulprofos, pyraclofos, monocrotofos, nared, fostiasate, NAC, MTMC, MIPC, BPMC, XMC,
Examples include PHC, MPMC, ethiophenecarb, bendiocarb, pirimicarb, carbosulfan, benfracarb, mesomil, oxamil, aldicarb, etofenprox, flufenprox, halffenprox, dinotefuran, imidacloprid, fipronil, acetamiprid and the like. These pesticidally active ingredients can be used alone or in combination of two or more, but the present invention is not limited to these exemplified pesticidally active ingredients.

The insect repellent net of the present invention is made of natural fibers such as cotton, hemp, wool, silk, rayon, nylon resin, vinylon resin, acetate resin, polyester resin, polyolefin resin, phenol resin, urethane resin, and urea resin. And synthetic fibers such as vinyl resin, aramid resin, novoloid resin, polyamide resin, acrylic resin, and cellulosic resin, etc., and processed into a shape intended for insect repellency such as mosquito nets, screen doors, and screens. Although the interval is not particularly limited, it is in the range of 0.5 to 30 mm from the viewpoint of maintaining the air permeability and the chance of contact with the netting, and preferably in the range of 1 to 10 mm from the practical viewpoint. The thickness of the fiber of the mesh is not particularly limited. Also,
The present invention is not limited to insect repellent nets, and it is also possible to process the insecticidal composition on mats, carpets, sheets, pillow covers, curtains, floor covers, furniture covers, pet goods, etc. using these materials. .

[0012] As a method of attaching the drug to the insect net,
The insecticidal composition, the aqueous polymer and water are mixed at an arbitrary ratio, and the insect repellent net is immersed or coated in this liquid, and then dried, or the insecticidal composition containing the aqueous polymer is diluted with water, and likewise. The method of treatment is preferred.

The surfactant which can be used in the insecticidal composition of the present invention is not particularly limited, and those conventionally used in the field of agricultural chemicals can be used. Examples of the nonionic surfactant include: Polyethylene glycol types such as higher alcohol ethylene oxide adducts, alkylphenol ethylene oxide adducts, fatty acid ethylene oxide adducts, and polyhydric alcohol types such as glycerol fatty acid esters, fatty acid esters of sorbitol and sorbitan, and alkyl ethers of polyhydric alcohols; Examples of the anionic surfactants include carboxylate types such as soaps, higher alcohol sulfates, sulfated fatty acid esters, alkylbenzene sulfonates,
Sulfonate type such as alkylnaphthalene sulfonate,
Polyanionic polymer surfactants derived from styrene sulfonic acid, such as phosphate esters such as higher alcohol phosphate esters, polyanionic polymer surfactants derived from acrylic acid and acrylonitrile, acrylamidomethylpropane sulfonic acid, etc. It can be used, but is not limited to these. These surfactants may be used alone or in combination of two or more.

The insecticidal composition of the present invention can be produced by a known method, and a suitable method is preferably selected according to the physical properties of the insecticidal active ingredient. The production method of the flowable agent is, for example,
While stirring with an emulsifier such as a homomixer or the like in water containing a surfactant, a solution in which the pesticidal active ingredient and the organic solvent are dissolved is gradually added, and the particle size can be adjusted.
Microencapsulation may be performed by any known method, for example, an interfacial polymerization method, a cured film in liquid method, an in-situ method.
tu polymerization method and the like. As the membrane component of the microcapsules, any known components can be applied. For example, polyurethane, polyurea, polyamide, polyester,
Polycarbonate, polysulfonate, polysulfonamide, urea formalin condensate, melamine urea condensate, melamine formalin condensate, phenol formalin condensate, acrylate polymer, methacrylate polymer, vinyl acetate polymer, styrene polymer, divinyl Examples include, but are not limited to, benzene polymers, ethylene dimethacrylate polymers, alkylated methylol melamine condensates, and the like.

[0015] The method for producing any of the preparations is not limited thereto. Solvents, antifreezes, defoamers, thickeners, and antidegradants can also be used in these pesticidal compositions as needed, depending on the type of pesticide active ingredient and dosage form used. You can select it. As the solvent,
For example, normal paraffin L, normal paraffin M,
Normal paraffin-based solvents such as normal paraffin H (all Nippon Oil Co., Ltd. products), Isosol 300 (all Nippon Oil Co., Ltd. products), Isopar G, Isopar
H (above, products of Exxon Petroleum Co., Ltd.), isoparaffinic solvents, naphthesol LL, naphthesol L, naphthesol M, naphthesol MS-20, teclean N-1
6, Teclean N-20, Teclean N-22 (the above,
Naphthenic solvents such as Nippon Oil Co., Ltd.), toluene, xylene, para-xylene, ortho-xylene, alkene L, Hisol E, Hisol F, Hisol P,
Alkene 56N, Alkene 60NH, Hysol 100
(Nippon Oil Co., Ltd. products), Cactus P-180,
Cactus P-200, Cactus P-220 (all products of Nikko Petrochemical Co., Ltd.), Solvesso 100, Solvesso 150, Solvesso 200 (all, Exxon Oil Co., Ltd.)
Products), Swazol 200, Swazol 310, Swazol 1000, Swazol 1500, Swazol 180
Aromatic solvents such as No. 0 (above, products of Maruzen Petrochemical Co., Ltd.), polybutene-based solvents such as polybutene LV-7, polybutene LV-10, and polybutene LV-25 (both products of Nippon Oil Co., Ltd.), and vinylizer 105, Vinicizer 9
0, phthalic acid-based solvents such as Vinicizer 124 (product of Kao Corporation), KMC-113 (product of Kureha Chemical Industry Co., Ltd.)
A mixed solvent of an aliphatic hydrocarbon solvent and a naphthenic solvent such as a naphthalene-based solvent such as Exol D30, Exsol D40, Exol D80, and Exol D110 (all products of Exxon Petroleum Co., Ltd.) and 1-phenyl 1-xylylethane Examples include, but are not limited to, Hizol SAS-296 (both products of Nippon Oil Co., Ltd.), castor oil, rapeseed oil, sesame oil, and other vegetable oils. One or a mixture of these may be used.
Examples of the antifreezing agent include, but are not limited to, ethylene glycol, propylene glycol, glycerin, methanol, ethanol, isopropanol, urea, and alkali halides. Examples of the antifoaming agent include, but are not limited to, a silicon-based antifoaming agent containing dimethylpolysiloxane as a main component. Examples of the thickener include carrageenan, gum arabic, sodium alginate, tragacanth, gelatin, guar gum, natural polymers such as dextrin, sodium polyacrylate, methyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, polyethylene oxide, carboxymethyl cellulose, and polyvinyl alcohol. And inorganic polymers such as montmorillonite, savonite, bentonite and the like, but are not limited thereto. Examples of the decomposition inhibitor include, but are not limited to, amine-based and phenol-based antioxidants, salicylate-based, benzophenone-based, benzotriazole-based, substituted acrylonitrile-based, and cerium oxide-based ultraviolet absorbers. Not something.

In the case of solid preparations such as emulsion preparations and wettable powders using an organic solvent, the same effects as those of water-based preparations can be obtained by adding the aqueous polymer of the present invention to these water dilutions. Can be demonstrated. If necessary, the surfactant, the solvent, the anti-decomposition agent, and the extender can be used in these insecticidal compositions. These can be selected according to the type of the pesticidal active ingredient and the dosage form used. do it. Examples of the bulking agent include mineral substances such as clay, diatomaceous earth, talc, bentonite and white carbon, salts such as ammonium sulfate and sodium sulfate, sugars, organic substances such as cellulose powder and urea, but are not limited thereto. .

[0017]

Next, the present invention will be described with reference to specific examples in order to show excellent effects according to the present invention, but the present invention is not necessarily limited thereto. Example 1 As a test piece, a polyester net (mosquito net) was used.
It was cut to 0 cm and 40 cm wide for use. 1. 0.32 ml of a commercially available flowable agent (product of Mitsui Chemicals, Inc.) containing 10 parts by weight of etofenprox and tap water
79 ml, Toxanone NA-300 (a product of Sanyo Chemical Industries, Ltd .; anionic polycarbonate urethane resin emulsion, resin content 39%) 0.09 ml
Were mixed to prepare 3.2 ml of a diluent. The entire amount of the diluent was transferred to a glass Petri dish (diameter 90 mm, depth 15
mm). The test piece was folded four times, sized to fit in a glass petri dish, immersed in a chemical solution in the glass petri dish, and an operation was performed so that the chemical solution was uniformly attached to the test piece. After the immersion operation, the test piece was spread and shaded for 12 hours to obtain a test piece-1.

Example 2 A polyester net (mosquito net) was used as a test piece.
It was cut to 0 cm and 40 cm wide for use. 0.16 ml of a commercially available emulsion (manufactured by Mitsui Chemicals, Inc.) containing 20 parts by weight of etofenprox, 2.95 ml of tap water,
Toxanone NX-4300 (product of Sanyo Chemical Industry Co., Ltd .;
Anionic polyester-based urethane resin emulsion,
(Resin content: 40%) Test piece-2 was prepared in the same manner as in Example 1, except that 0.09 ml of the mixture was mixed to prepare 3.2 ml of a diluent.

Example 3 A polyester net (mosquito net) was used as a test piece.
It was cut to 0 cm and 40 cm wide for use. 0.16 ml of commercially available microcapsules containing Etofenprox (20 parts by weight, manufactured by Mitsui Chemicals, Inc.) and tap water
Except that 2.95 ml and 0.09 ml of Toxanone NA-150 (manufactured by Sanyo Chemical Industries, Ltd .; anionic polyether-based urethane resin emulsion, resin content 30%) were mixed to prepare 3.2 ml of a diluent, Example 1
The same operation as that described was performed to prepare test piece-3.

Example 4 8 parts of an anionic surfactant (Kao Corporation; vinyl acetate anion copolymer) was dissolved in 20 parts by weight of pure water.
While gradually adding 21 parts of a 50:50 weight ratio mixed solution of etofenprox and Vinicizer 90 (manufactured by Kao Corporation; diisodecyl phthalate), T.F. K. The hydrophobic solution was emulsified and dispersed for several minutes at a rotation speed of 8000 rpm using an auto homomixer (trade name of Tokushu Kika Kogyo Co., Ltd.). Subsequently, 24.3 parts of an aqueous solution in which 1.0 part by weight of Kelzan S (Xanthan Gum Co., Ltd.) was dissolved to a final concentration of 0.25 part by weight, and Proxel GXL (product of Zeneca Corporation; Mold) 0.2
Parts by weight, Toxanone NA-300 (Sanyo Chemical Industries, Ltd.)
Product: anionic polycarbonate-based urethane resin emulsion, resin content 39%) was added to obtain an emulsion formulation containing 10 parts by weight of etofenprox containing toxanone NA-300.

Example 5 A polyester net (mosquito net) was used as a test piece.
It was cut to 0 cm and 40 cm wide for use. Example 4
Emulsion formulation 0.32ml and tap water 2.88m
1 was mixed to prepare 3.2 ml of a diluent, and the same operation as that described in Example 1 was carried out to obtain test piece-4.

Example 6 After dissolving 6 parts by weight of an anionic polymer surfactant (polymer of acrylic acid, acrylonitrile and acrylamidomethylpropanesulfonic acid) in 36.3 parts by weight of pure water,
Adjust the pH to around 4 with 5N NaOH. next,
Euramine T-3 was added to this solution as a capsule wall precursor.
4 (product of Euramine Kogyo Co., Ltd .; methylated methylol melamine) 0.3 parts by weight were further added, and the weight ratio of etofenprox to Vinicizer 105 (Kao Co., Ltd. product: dinormal decyl phthalate) as a core substance was 55:
While gradually adding 36.5 parts by weight of the mixed solution of T.45, K. Auto Homo Mixer (Special Kika Kogyo Co., Ltd.)
Using the trade name), the hydrophobic solution was emulsified and dispersed at a rotation speed of 6000 rpm for several minutes. Thereafter, the reaction was carried out with gentle stirring in a thermostat at 60 ° C. for 2 to 3 hours to obtain a dispersion of microencapsulated material. Agrisol F
7.5 parts by weight of L-100F (a product of Kao Corporation; a mixture of a polyol derivative and a carboxylic acid polymer) and 0.2 parts of Proxel GXL (a product of Zeneca Corporation; a fungicide)
13.2 parts by weight of Toxanone NXA-3005 (product of Sanyo Kasei Kogyo Co., Ltd .; anionic polyester-based urethane resin emulsion, resin content 40%) was added, and 20 parts by weight of etofenprox containing Toxanone NXA-3005 was added. A microcapsule formulation was obtained.

Example 7 As a test piece, a polyester net (mosquito net) was used.
It was cut to 0 cm and 40 cm wide for use. Example 6
0.16 ml of tap water and 3.04 m of tap water
1 was mixed to prepare 3.2 ml of a diluent, and the same operation as that described in Example 1 was carried out to obtain a test piece-5.

Comparative Example 1 A polyester net (mosquito net) was used as a test piece.
It was cut to 0 cm and 40 cm wide for use. Commercial flowable containing 10 parts by weight of etofenprox
0.32 ml and 2.88 ml of tap water were mixed to prepare 3.2 ml of a diluent. The whole amount of the diluted solution was charged into a glass Petri dish (diameter 90 mm, depth 15 mm). The test piece was folded four times, sized to fit in a glass petri dish, immersed in a chemical solution in the glass petri dish, and an operation was performed so that the chemical solution was uniformly attached to the test piece. After the immersion work, the test piece was spread and shaded for 12 hours to obtain a test piece-6.

Comparative Example 2 A polyester net (mosquito net) was used as a test piece.
It was cut to 0 cm and 40 cm wide for use. 0.16 ml of a commercially available microcapsule containing 20 parts by weight of etofenprox was mixed with 3.04 ml of tap water,
3.2 ml of diluent was prepared. The whole amount of the diluent was charged into a glass petri dish (90 mm in diameter, 15 mm in depth). The test piece was folded four times, sized to fit in a glass petri dish, immersed in a chemical solution in the glass petri dish, and an operation was performed so that the chemical solution was uniformly attached to the test piece. After the immersion operation, the test piece was spread and shaded for 12 hours to obtain a test piece-7.

Test Example 1 Washing durability test (test method) 1) Wide-mouth plastic bottle (wide-mouth polypropylene bottle 50)
0 ml), put a test piece (length 40 cm, width 40 cm) and 250 ml of a predetermined concentration of washing liquid, and add MULTI SHAKER (EYELA
After shaking for 5 minutes at a speed of 220 rpm using a MMS-3000 (manufactured by MMS-3000), take it out and squeeze it lightly. 2) Laundry liquid is a synthetic detergent for washing (trade name Hi Top, L
A 0.083% aqueous solution (manufactured by Lion Corporation) (standard usage described) was used. Hi used in this test
Table 1 shows the top quality indicators.

[0027]

[Table 1]

3) Put the above test piece and 250 ml of tap water into another plastic bottle of the same capacity, shake for 10 minutes under the same conditions as for washing, lightly squeeze by hand, air-dry for 1 day, and wash it. Use it as a test piece. 4) The insecticidal active ingredient attached to the test piece was collected and measured by the following operation. Extraction operation A test piece was placed in a 200 ml Erlenmeyer flask with a stopper, 100 ml of acetone was added, and after 30 minutes of immersion, extraction was performed in an ultrasonic cleaner for 10 minutes. Extract the 17G-3.5
The specimen was filtered through a glass filter, and the extracted test piece was washed again with 50 ml of acetone. Next, the acetone is completely distilled off from the extracted liquid under reduced pressure using a rotary evaporator, and then the residue is dissolved in 10 ml of acetone, and measured by gas chromatography. Analytical method Gas chromatography method Gas chromatography operating conditions Model: Shimadzu GC-14A Column: 3% silicon DC-QF1 Gas chrome Q φ2.
6mm × 1.1m Detector temperature: 270 ° C Inlet temperature: 270 ° C Column temperature: 250 ° C Nitrogen flow rate: 1kg / cm ² (Test result)

[0029]

[Table 2]

Test Example 2 Effect Persistence Test (Test Method) 1) A test piece was fixed on a vertical wall, and a plastic container having a length of 10 cm × width 10 cm × depth 10 cm provided with an insect inlet was prepared. Set up to cover. 2) Release 20 mosquitoes in a plastic container,
One hour later, surviving insects were measured and death was determined. (Test results)

[0031]

[Table 3]

[0032]

As described above, according to the method of the present invention,
An insecticidal composition containing etofenprox as an insecticidally active ingredient in a commercially available insect repellent net and a nonionic or anionic aqueous polymer are diluted with water, immersed or coated, and dried to reduce cost. The washing resistance of the insect repellent net is easily improved, and the insect repellent effect is maintained, so that a stable insect repellent effect is obtained. Furthermore, in the present invention, it has become possible to produce an insecticidal composition in which an aqueous polymer is preliminarily contained in the insecticidal composition, which is essential for improving the washing durability.

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) D06M 13/165 D06M 13/165 15/564 15/564 E06B 9/52 E06B 9 / 52F (72) Invention Person Masahiro Tokuman 1144 Togo, Mobara-shi, Chiba Prefecture F-term (reference) 2B121 AA12 BB02 CC02 CC31 EA01 EA13 EA21 FA07 4H011 AC02 BA01 BB03 BC06 BC19 DA06 DA10 DA15 DD07 DH02 DH04 DH05 DH14 AC10 AC03 CA52

Claims (8)

[Claims] (1) An insect repellent net is immersed in a water bath containing an insecticidal composition containing etofenprox as an insecticidal active ingredient and an aqueous polymer, and dried to improve washing durability and insect repellency. A method for processing a pesticidal composition into an insect repellent net 2. A method for improving washing durability and insect repellency, comprising applying an insecticidal composition containing etofenprox as an insecticidal active ingredient and a solution containing an aqueous polymer to an insect repellent net and drying. A method for processing a pesticidal composition into an insect repellent net. 3. The amount of the resin contained in the aqueous polymer is 0.01 g to 6 g per 1 m ^{2 of the} insect net.
Or a method for processing the insecticidal composition according to claim 2 into an insect repellent net. 4. The method according to claim 1, wherein the aqueous polymer is a nonionic or anionic synthetic resin emulsion.
A method for processing the insecticidal composition according to the above into an insect net. 5. The method for processing an insecticidal composition into an insect repellent net according to claim 4, wherein the synthetic resin emulsion is a nonionic or anionic urethane resin emulsion. 6. The method for processing an insect repellent composition into an insect repellent net according to claim 1, wherein the fibers constituting the insect repellent net are fibers other than hollow fibers. 7. An insecticidal composition for insect repellent net processing, comprising a flowable agent or an EW agent containing an insecticidal active ingredient and 0.1 to 45 parts by weight of an aqueous polymer as a resin content. 8. The insecticidal composition according to claim 7, which is diluted in water.
3. The method for processing into an insect repellent net according to claim 1 or 2, wherein the method is applied to an insect repellent net.