Mothproof cover

Abstract

To provide a mothproof cover having low friction and physical irritation with respect to a living body and having excellent shape stability and easiness of cleaning and drying.SOLUTION: A mothproof cover is formed of a net-like molded body obtained by integrally molding a net leg and an intersection and having a thermoplastic resin and a moss repellent held in the thermoplastic resin. A net leg portion and an intersection portion form a continuous surface with no step.SELECTED DRAWING: None

Description

[Technical Field]

[0001] The present invention relates to an insect repellent cover, and more particularly to an insect repellent cover for preventing blood-sucking by blood-sucking insects such as mosquitoes from living organisms. [Background technology]

[0002] In recent years, infectious diseases such as malaria, dengue fever, and Zika fever, which originated in tropical and subtropical regions, have spread to relatively high latitudes due to global warming, and the risk of these diseases is now being pointed out in Japan as well.

[0003] These infectious diseases are transmitted by mosquitoes, and to prevent them, insect repellent sprays, insect repellent clothing, insect screen doors, insect repellent mosquito nets, etc. are used. In particular, since insect repellent clothing directly protects human skin, various fabrics with insect repellent properties have been proposed.

[0004] Meanwhile, in the dairy industry, livestock such as cows can become stressed by bites from blood-sucking insects such as stable flies and horseflies, which can lead to reduced feed intake and premature growth, with weight and height not reaching the standard. Infectious bovine lymphoma is divided into two types: endemic and sporadic, with the majority of cases being endemic, caused by infection with the bovine infectious lymphoma virus. Livestock become infected by horseflies and stable flies in barns or while grazing, and there is no vaccine or appropriate treatment. Once the disease develops, the prognosis is poor and it can even lead to death, so there is no appropriate way to protect against it.

[0005] In horses, especially those carrying riders, the pain of bites from blood-sucking insects can cause the rider to fall off the horse, leading to accidents. Although horses may wear harnesses, this is not very effective in preventing or repelling blood-sucking insect bites.

[0006] As examples of fabrics with insect repellent properties, Patent Document 1 proposes fabrics treated with a blood-sucking insect repellent using DEET (N,N-diethyl-3-methylbenzamide). Patent Document 2 proposes a heat-fused fiber structure with excellent washing durability that carries a mosquito repellent on one side. Patent Document 3 proposes a mesh-shaped insect repellent sheet that is post-processed with an insect repellent. Patent Document 4 proposes an insect repellent cover that uses an insect repellent, particularly icaridin, kneaded into a resin and made into fiber.

[0007] Furthermore, ISO24461:2022 (Textile - Anti-mosquito performance test method using the attractive blood feeding apparatus) was published in June 2022, and progress is being made in standardizing the evaluation method for the mosquito repellent performance of fabrics, which quantitatively evaluates their ability to prevent mosquitoes from biting blood when worn by the human body. [Prior art documents] [Patent documents]

[0008] [Patent Document 1] Japanese Patent Application Publication No. 8-188966 [Patent Document 2] Japanese Patent Application Laid-Open No. 2016-183110 [Patent Document 3] Utility Model Registration No. 3098289 [Patent Document 4] International Publication No. 2021 / 070642 Summary of the Invention [Problem to be solved by the invention]

[0009] Many conventional insect repellent covers for living organisms are made from clothing fabrics, taking into consideration wearing comfort and potential damage caused by friction or physical irritation. However, when worn on parts of the body, arms, or legs of humans, livestock, or other animals that are susceptible to bites from blood-sucking insects such as mosquitoes, particularly on exposed parts of the body, an insect repellent cover that can stably maintain its shape even if it is larger than the part to be protected, can be easily put on and taken off, and can be easily washed and dried is preferred.

[0010] The present invention is intended to solve the above problems, and its object is to provide an insect repellent cover that has low friction and physical irritation to the living body, and is excellent in shape stability and ease of washing and drying. [Means for solving the problem]

[0011] The present inventors have conducted extensive research to solve the above problems and have completed the present invention. That is, the present invention provides the following aspects. [Embodiment 1] A mesh-like molded body having a thermoplastic resin and an insect repellent held in the thermoplastic resin, in which the mesh legs and intersections are integrally molded, This insect-proof cover has mesh legs and intersections that form a continuous surface without any steps.

[0012] [Embodiment 2] The insect cover of embodiment 1, wherein the mesh-like molded body has a mesh leg thickness of 0.1 to 1.0 mm, preferably 0.1 to 0.7 mm, and more preferably 0.2 to 0.5 mm, and a mesh size index of 1 to 10 mm, preferably 6 to 1 mm, and more preferably 4 to 1 mm.

[0013] [Embodiment 3] The insect cover of embodiment 1 or 2, wherein the content of the insect repellent in the net-like molded body is 0.8 to 8.0% by weight, preferably 1 to 6% by weight, and more preferably 2 to 5% by weight.

[0014] [Aspect 4] The insect cover of any one of Aspects 1 to 3, wherein the insect repellent is icaridin.

[0015] [Aspect 5] The insect cover of any one of Aspects 1 to 4, wherein the net-like molded article has a mosquito blocking rate of 80% or more, preferably 90% or more, and more preferably 95% or more.

[0016] [Aspect 6] An insect repellent cover according to any one of aspects 1 to 5, wherein the mesh-like molded body has a mosquito prevention rate of 75% or more, preferably 80% or more, and more preferably 85% or more, even after being exposed to conditions of 20°C and 65% RH for one month.

[0017] [Aspect 7] An insect repellent cover according to any one of Aspects 1 to 6, wherein the mesh-like molded body has an insect repellent performance corresponding to a blood-sucking prevention index of either E95+ or E80, preferably E95+, in the mosquito repellent performance evaluation according to ISO24461:2022.

[0018] [Embodiment 8] An insect repellent cover according to any one of embodiments 1 to 7, wherein the mesh-like molded body has an insect repellent performance corresponding to a blood-sucking prevention index of either E95+ or E80, preferably E95+, in the mosquito repellent performance evaluation according to ISO24461:2022, even after one month of exposure at 20°C and 65% RH.

[0019] [Embodiment 9] An insect cover according to any one of embodiments 1 to 8, in which the thicknesses of the mesh leg portions and intersection portions are substantially the same.

[0020] [Embodiment 10] An insect repellent cover according to any one of embodiments 1 to 9, which is intended for attachment to a living body. [Effects of the Invention]

[0021] According to the present invention, an insect repellent cover can be provided that has low friction and physical irritation to living organisms, and is excellent in shape stability and ease of washing and drying. Compared to fabric-type insect repellent covers made of soft fibers, the insect repellent cover of the present invention is made of a mesh-like molded body that has excellent shape retention, so the area that comes into contact with the skin is limited, and a space is maintained between the skin and the mesh. Therefore, even if blood-sucking insects such as mosquitoes come, they will not reach the skin due to the physical distance, and the cover can exhibit blood-sucking prevention properties in addition to its insect repellent effect. [Brief explanation of the drawings]

[0022] [Figure 1] 1A and 1B are plan views showing specific examples of mesh patterns of a mesh-like molded article used in the present invention, in which Fig. 1A shows a tortoiseshell-shaped mesh pattern and Fig. 1B shows a diamond-shaped mesh pattern. DETAILED DESCRIPTION OF THE INVENTION

[0023] Hereinafter, embodiments of the present invention will be described in detail, but the present invention is not limited to the following embodiments.

[0024] FIG. 1 is a plan view showing a specific example of the mesh pattern of the mesh-like molded article used in the present invention. (a) shows a tortoiseshell-shaped mesh pattern, and (b) shows a diamond-shaped mesh pattern. The mesh pattern is formed by regularly arranging mesh legs 1, which correspond to the sides of the polygon, and intersections 2, which correspond to the corners of the polygon. Specific examples of polygons include triangles, squares, pentagons, hexagons, and octagons. Of these, preferred polygons are squares, rhombuses, and regular hexagons.

[0025] The mesh indices a and b of the mesh pattern may be the same or different, but are preferably the same in consideration of ease of production and stability of quality. In one embodiment, the mesh indices a and b are adjusted to 1 to 10 mm. In another embodiment, the thickness of the mesh legs is adjusted to 0.1 to 1.0 mm.

[0026] By adjusting the mesh index and mesh leg width within the above ranges, irritation to the skin is reduced and strength sufficient to prevent tearing during wear is achieved. The mesh indexes a and b are preferably 6 to 1 mm, more preferably 4 to 1 mm. The mesh leg width is preferably 0.1 to 0.7 mm, more preferably 0.2 to 0.5 mm.

[0027] The net-shaped molded article used in the present invention can be a net-shaped article obtained by integrally molding a thermoplastic resin composition by extrusion molding. Such a net-shaped article may be integrally molded, for example, by continuous extrusion molding, so that each net leg intersects at a predetermined angle. Alternatively, such a net-shaped article may be integrally molded by directly pouring a molten thermoplastic resin composition into a mold from the extrusion process. This manufacturing method allows the net legs and intersections to be integrally molded. Furthermore, this manufacturing method allows the net leg portions and intersection portions to be formed into a continuous surface without any steps. Furthermore, this manufacturing method allows the net leg portions and intersection portions to be adjusted to substantially the same thickness. "Substantially the same" means that slight differences that are not intentional are considered to be the same.

[0028] The reticulated molded article used in the present invention can be manufactured from a resin composition containing a thermoplastic resin and an insect repellent. The thermoplastic resin may be polyethylene resin, polypropylene resin, EVA resin, acrylic resin, EMMA, EEA, hydrogenated styrene-based thermoplastic elastomer, or a mixture of two or more thereof, and the type of resin is not limited.

[0029] Insects to be repelled include, for example, insects that suck blood from humans and animals, such as mosquitoes, stable flies, horseflies, black flies, ticks, land leeches, etc. Effective insect repellents for repelling blood-sucking insects include, but are not limited to, essential oils such as icaridin and copaiba oil.

[0030] The raw material for the net-shaped molded body can be one or more thermoplastic resins, and a repellent-containing thermoplastic resin composition can be used, in which a certain amount of an insect repellent that has a repellent effect on blood-sucking insects is kneaded into the thermoplastic resin. In this case, the insect repellent can be kneaded into the thermoplastic resin by, for example, the method described in Japanese Patent No. 3,963,941.

[0031] The content of the insect repellent in the thermoplastic resin composition may be any concentration that provides a repellent effect against blood-sucking insects. In one preferred embodiment, the content of the insect repellent is 0.8 to 8% by weight, preferably 1 to 6% by weight, and more preferably 2 to 5% by weight. If the amount of repellent added is too small, the initial effect and the duration of the effect will be insufficient. Furthermore, if the amount added is too large, when the composition is molded into a net shape, the adhesive strength at the intersections of the net will be weakened due to the bleed-out agent, which will affect the durability of the product.

[0032] The insect repellent cover of the present invention is formed by molding a mesh-like molded article into a shape that is effective for covering or attaching to a living organism. The living organisms to be covered include humans, livestock, pets, and other animals, and the insect repellent cover is particularly preferably used to cover exposed parts of these animals. "Exposed parts" refers to parts that are not covered by clothing. For example, the head, including the face, neck, forearms, abdomen, and lower legs are easily exposed from clothing, making them highly effective as areas for attaching the insect repellent cover of the present invention.

[0033] In one preferred embodiment, the insect repellent cover of the present invention is a mesh-shaped article molded into a self-supporting tube. The self-supporting tube-shaped mesh-shaped article can be manufactured, for example, using a synthetic resin net manufacturing device in which an inner nozzle and an outer nozzle rotate in opposite directions at the same angular velocity. This method allows the mesh size of the mesh-shaped article to be made to any size by adjusting the nozzle rotation speed, take-up speed, etc. The insect repellent cover of the present invention, which is a tubular mesh-shaped article, has a limited area that comes into contact with the skin, maintaining a space between the skin and the mesh, thereby providing insect repellent effects and preventing insects from sucking blood. It can be used suitably as arm covers, neck covers, leg covers, etc.

[0034] The insect repellent performance of the insect repellent cover of the present invention can be measured, for example, by the following procedure.

[0035] <Mosquito prevention rate> The test subjects were insect repellent cover products or mesh-like moldings that had been stored at room temperature for no more than 14 days after production, preferably no more than 7 days after production. For the treatment group, the test subjects were placed on cotton work gloves, then placed like gloves from the wrists up, and placed in a 28cm square cage containing 50 adult female Aedes albopictus mosquitoes for 5 minutes. The number of mosquitoes landing on the specimen every minute was counted, and the cumulative number of mosquitoes over the 5-minute period was recorded. For the untreated group, a similar test was conducted using a general-purpose insect repellent cover or mesh-like molding without insect repellent properties instead of the test subjects. The flight blocking rate (%) was then calculated according to the following formula:

[0036] Flying prevention rate (%) = (Cumulative number of arrivals in the untreated area - Cumulative number of arrivals in the treated area) / (Cumulative number of arrivals in the untreated area) x 100

[0037] Furthermore, as an accelerated test, the test object is exposed to conditions of 20°C and 65% humidity for one month, after which the same measurements are taken.

[0038] The insect repellent cover or net-like molded article of the present invention has a mosquito blocking rate of 80% or more, preferably 90% or more, and more preferably 95% or more, as measured by the above-mentioned test method. Even after one month of exposure to conditions of 20°C and 65% RH, the insect repellent cover or net-like molded article of the present invention still has a mosquito blocking rate of 75% or more, preferably 80% or more, and more preferably 85% or more, as measured by the above-mentioned test method.

[0039] <Mosquito blood-sucking prevention rate> The test subjects are insect repellent covers that have been stored at room temperature for no more than 14 days after manufacture, preferably no more than 7 days after manufacture. The mosquito blood-feeding prevention rate can be measured using the procedure specified in ISO 24461:2022, a mosquito repellent test method using a blood-feeding device. First, the prepared insect repellent covers are tested, and then, as an accelerated test, the blood-feeding prevention rate is measured for insect repellent covers after one month of exposure at 20°C and 65% humidity. In this measurement, the blood-feeding prevention index (BFM) for the evaluation of anti-mosquito performance is classified as E95+, E80, E50, or E50-. Of these, E95+ and E80 are considered to have excellent insect repellent effects.

[0040] [Table 1]

[0041] The insect repellent cover or net-like molded product of the present invention has insect repellent performance that corresponds to either E95+ or E80, preferably E95+, in the blood-sucking prevention index of the mosquito repellent performance evaluation according to ISO 24461: 2022. Even after one month of exposure under conditions of 20°C and 65% RH, the insect repellent cover or net-like molded product of the present invention still has insect repellent performance that corresponds to either E95+ or E80, preferably E95+, in the blood-sucking prevention index of the mosquito repellent performance evaluation according to ISO 24461: 2022. [Example]

[0042] The present invention will be described below based on examples. However, the present invention is not limited to these examples, and these examples can be modified or changed based on the spirit of the present invention, and such modifications are not excluded from the scope of the present invention.

[0043] <Icaridin content> The icaridin content in the reticular molding was measured by the following procedure: 0.5 g of a sample was taken and placed in a 40 ml container of a high-speed, high-pressure solvent extractor. Four cycles of 100°C, 150 bar, and 30 minutes were performed using acetone as a solvent, and the icaridin content was measured by gas chromatography-mass spectrometry.

[0044] Example 1 LDPE (Novatec LL UJ960, manufactured by Nippon Polyethylene) and Septon (SEPS2104, manufactured by Kuraray) were mixed in a weight ratio of 75 / 25, and 10% Icaridin was added to the mixed resin while kneading using a conventional twin-screw kneader to obtain a compound containing Icaridin.

[0045] Furthermore, this compound was mixed with the above LDPE in a 50 / 50 weight ratio, and a cylindrical mesh-like molded article was obtained using a conventional extrusion net molding machine, with a diamond-shaped mesh size index a = b = 5 mm and a mesh leg length of 0.5 mm. The mesh-like molded article had a continuous surface with no steps at the mesh leg and intersection points, and both parts were the same thickness. The icaridin content of the mesh-like molded article was 4.5%.

[0046] The flying object blocking rate was measured on the reticulated molded product 14 days after production and was found to be over 99%.Furthermore, when this reticulated molded product was exposed to 20°C and 65% RH for one month, the flying object blocking rate was measured and found to be 96%.

[0047] The reticulated molded product was evaluated for blood-sucking prevention performance 14 days after production according to ISO24461:2022, and the blood-sucking prevention index was E95+. Furthermore, this reticulated molded product was exposed to 20°C and 65% RH for one month, and then the blood-sucking prevention performance was similarly evaluated according to ISO24461:2022, and the blood-sucking prevention index was E95+.

[0048] Example 2 LDPE (Novatec LL UJ960, manufactured by Nippon Polyethylene) and EMMA (Aclift WK307, manufactured by Sumitomo Chemical) were mixed in a 50 / 50 weight ratio, and 6% of Icaridin was added to the mixed resin. The mixture was then kneaded using a conventional twin-screw kneader to obtain a compound containing Icaridin.

[0049] Furthermore, this compound was mixed with the above LDPE in a 50 / 50 weight ratio, and a hexagonal mesh-like tubular molded article with a mesh size index a=b=4 mm and a mesh leg of 0.3 mm was obtained using a conventional extrusion net molding machine. The mesh-like molded article had a continuous surface with no steps at the mesh leg and intersection points, and both parts were the same thickness. The icaridin content of the mesh-like molded article was 2.7%.

[0050] The flying object blocking rate of the net-like molded product was measured 14 days after production and was found to be over 99%.Furthermore, when this net-like molded product was exposed to 20°C and 65% RH for one month, the flying object blocking rate was measured and was found to be 91%.

[0051] The reticulated molded product was evaluated for blood-sucking prevention performance 14 days after production according to ISO24461:2022, and the blood-sucking prevention index was E95+. Furthermore, this reticulated molded product was exposed to 20°C and 65% RH for one month, and then the blood-sucking prevention performance was similarly evaluated according to ISO24461:2022, and the blood-sucking prevention index was E95+.

[0052] Example 3 LDPE (Novatec LJ803, manufactured by Nippon Polyethylene) and HDPE (Novatec HJ491, manufactured by Nippon Polyethylene) were mixed in an 80 / 20 weight ratio, and 5% Icaridin was added to the mixed resin. The mixture was then kneaded using a conventional twin-screw kneader to obtain a compound containing Icaridin.

[0053] The compound was extruded in a conventional net extrusion machine to obtain a cylindrical mesh-like molded product with a diamond mesh size index of a = b = 1 mm and a mesh leg of 0.3 mm. The mesh-like molded product had a continuous surface with no steps at the mesh leg and intersection parts, and both parts were the same thickness. The icaridin content of the mesh-like molded product was 3.0%.

[0054] The flying object blocking rate of the net-like molded product was measured 10 days after production and was found to be over 99%.Furthermore, when this net-like molded product was exposed to 20°C and 65% RH for one month, the flying object blocking rate was measured and found to be 97%.

[0055] The mesh-like molded product was evaluated for blood-sucking prevention performance 10 days after production according to ISO24461:2022, and the blood-sucking prevention index was E95+. Furthermore, this mesh-like molded product was exposed to 20°C and 65% RH for one month, and then the blood-sucking prevention performance was similarly evaluated according to ISO24461:2022, and the blood-sucking prevention index was E95+.

[0056] Example 4 A compound containing icaridin was obtained by adding 5% of icaridin to a biodegradable resin (Mitsubishi Chemical, BAIOPBS FD92PM) and kneading it using a conventional twin-screw kneader.

[0057] The compound was extruded in a conventional net extrusion machine to obtain a cylindrical mesh-like molded product with a diamond mesh size index of a = b = 1 mm and a mesh leg of 0.3 mm. The mesh-like molded product had a continuous surface with no steps at the mesh leg and intersection parts, and both parts were the same thickness. The icaridin content of the mesh-like molded product was 2.6%.

[0058] The flying object blocking rate of the net-like molded product was measured 10 days after production and was found to be 96%.Furthermore, when this net-like molded product was exposed to 20°C and 65% RH for one month, the flying object blocking rate was measured and was found to be 85%.

[0059] The mesh-like molded product was evaluated for blood-sucking prevention performance 10 days after production according to ISO24461:2022, and the blood-sucking prevention index was E95+.Furthermore, after this mesh-like molded product was exposed to 20°C and 65% RH for one month, the blood-sucking prevention performance was also evaluated according to ISO24461:2022, and the blood-sucking prevention index was E80.

[0060] Example 5 LDPE (Novatec LJ803, manufactured by Nippon Polyethylene) and HDPE (Novatec HJ491, manufactured by Nippon Polyethylene) were mixed in an 80 / 20 weight ratio, and 3% Icaridin was added to the mixed resin. The mixture was then kneaded using a conventional twin-screw kneader to obtain a compound containing Icaridin.

[0061] The compound was extruded in a conventional net extrusion machine to obtain a cylindrical mesh-like molded product with a diamond mesh size index of a = b = 1 mm and a mesh leg of 0.3 mm. The mesh-like molded product had a continuous surface with no steps at the mesh leg and intersection parts, and both parts were the same thickness. The icaridin content of the mesh-like molded product was 2.1%.

[0062] The mesh-like molded product was measured for its flying particle blocking rate on the seventh day after production and found to be 98%.Furthermore, when this mesh-like molded product was exposed to 20°C and 65% RH for one month, the flying particle blocking rate was measured and found to be 89%.

[0063] The mesh-like molded product was evaluated for blood-sucking prevention performance seven days after production according to ISO24461:2022, and the blood-sucking prevention index was E95+.Furthermore, after this mesh-like molded product was exposed to 20°C and 65% RH for one month, the blood-sucking prevention performance was also evaluated according to ISO24461:2022, and the blood-sucking prevention index was E80.

[0064] (Comparative Example 1) LDPE (Novatec LL, UJ960, manufactured by Japan Polyethylene) was mixed with 2% of Icaridin using a conventional twin-screw mixer to obtain a compound containing Icaridin.

[0065] Furthermore, this compound was mixed with the above LDPE in a 50 / 50 weight ratio, and a hexagonal mesh-like tubular molded article with a mesh size index a=b=4 mm and a mesh leg of 0.3 mm was obtained using a conventional extrusion net molding machine. The mesh-like molded article had a continuous surface with no steps at the mesh leg and intersection points, and both parts were the same thickness. The icaridin content of the mesh-like molded article was 0.7%.

[0066] The flying insect prevention rate of the net-like molded product was measured 10 days after production and was found to be 74%. Furthermore, the blood-sucking prevention performance of the net-like molded product was evaluated 10 days after production according to ISO24461:2022 and the blood-sucking prevention index was found to be E50.

[0067] (Comparative Example 2) LDPE (Novatec LJ803, manufactured by Nippon Polyethylene) and HDPE (Novatec HJ491, manufactured by Nippon Polyethylene) were mixed in an 80 / 20 weight ratio, and 1% Icaridin was added to the mixed resin while kneading using a conventional twin-screw kneader to obtain a compound containing Icaridin.

[0068] The compound was extruded in a conventional net extrusion machine to obtain a cylindrical mesh-like molded product with a diamond mesh size index of a = b = 1 mm and a mesh leg of 0.3 mm. The mesh-like molded product had a continuous surface with no steps at the mesh leg and intersection parts, and both parts were the same thickness. The icaridin content of the mesh-like molded product was 0.5%.

[0069] The fly blocking rate of the net-shaped product was measured 14 days after production and was found to be 65%. Furthermore, the blood feeding prevention performance of the net-shaped product was evaluated according to ISO24461:2022 on the 14th day after production and the blood feeding prevention index was found to be E50. The results of the examples and comparative examples are summarized in Table 2.

[0070] [Table 2]

[0071] In the insect cover of the present invention, the insect repellent in the net-like molded body is gradually released from inside the resin, which effectively prevents insects from sucking blood even after one month at 20°C and 65% RH. [Industrial Applicability]

[0072] As explained above, the insect repellent cover of the present invention can be suitably used on exposed areas of the human body, such as the arms, hands, feet, neck, etc. Furthermore, the insect repellent cover of the present invention can also be applied to pet animals such as dogs and cats, livestock such as cows and pigs, and horses, which are targets for blood-sucking insects. [Explanation of symbols]

[0073] a, b...Mesh size index

Claims

1. The net-like molded article has a thermoplastic resin and an insect repellent held in the thermoplastic resin, and the net legs and intersections are integrally molded, This insect-proof cover has mesh legs and intersections that form a continuous surface without any steps.

2. 2. The insect cover according to claim 1, wherein the mesh-like molded body has a mesh leg thickness of 0.1 to 1.0 mm and a mesh size index of 1 to 10 mm.

3. 2. The insect cover according to claim 1, wherein the content of the insect repellent in the net-like molding is 0.8 to 8.0% by weight.

4. 2. The insect cover of claim 1, wherein the insect repellent is icaridin.

5. The insect repellent cover according to any one of claims 1 to 4, wherein the net-like molded body has a mosquito blocking rate of 80% or more.

6. 6. The insect cover according to claim 5, wherein the net-like molded article has a mosquito blocking rate of 75% or more even after being exposed to conditions of 20°C and 65% RH for one month.

7. The insect repellent cover according to any one of claims 1 to 4, wherein the mesh-like molded body has an insect repellent performance in which the blood-sucking prevention index in the mosquito repellent performance evaluation according to ISO24461:2022 corresponds to either E95+ or E80.

8. The insect repellent cover according to claim 7, wherein the mesh-like molded body has an insect repellent performance in which the blood-sucking prevention index in the mosquito repellent performance evaluation according to ISO24461:2022 corresponds to either E95+ or E80 even after one month of exposure under conditions of 20°C and 65% RH.

9. 2. The insect cover according to claim 1, wherein the thickness of the mesh leg portions and the mesh intersection portions are substantially the same.

10. The insect repellent cover according to any one of claims 1 to 4, which is adapted to be worn on a living body.

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