Nozzle and insect pest control aerosol product

Abstract

To provide a nozzle for making an insect pest control aerosol product that reduces spreading of an insecticidal composition to a user.SOLUTION: A nozzle having a hollow columnar part and a hollow approximately conical part is used by being attached to an insect pest control aerosol product, the hollow columnar part having an overall length of 10 to 100 cm and an inner diameter of 1 to 10 mm. in the hollow columnar part, one end thereof and the other end thereof are connected to the insect pest control aerosol product and the hollow approximately conical part, respectively. The hollow approximately conical part has an inner diameter which becomes larger from a portion connected with the hollow columnar part toward an end of the nozzle, and the inner diameter of the hollow approximately conical part at the end of the nozzle and the height of the hollow approximately conical part are 35 to 50 mm and 3 to 10 cm, respectively.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a nozzle and an aerosol product for controlling pests comprising said nozzle. [Background technology]

[0002] Various aerosol products are sold by various companies as devices for exterminating pests such as cockroaches. These aerosol products exterminate pests by spraying an insecticidal composition directly from a nozzle or by connecting a nozzle such as a straw to the nozzle. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 10-191861 [Patent Document 2] Japanese Utility Model Application No. 62-173476 (Japanese Utility Model Application No. 1-77865) Summary of the Invention [Problem to be solved by the invention]

[0004] However, when such an aerosol product is used, the sprayed insecticidal composition spreads in the space. As a result, the user cannot avoid discomfort due to the odor of the insecticidal composition. In addition, there is a concern that some components contained in the insecticidal composition may have an adverse effect on the human body.

[0005] In addition, examples of nozzles connected to aerosol products include those disclosed in Patent Documents 1 and 2, but these are based on the premise that pests are captured in the nozzle and then sprayed with the aerosol product to exterminate them. However, in consideration of the speed at which pests move and the speed at which they recognize the outside world, advanced technology is required to capture and exterminate pests, and this is difficult to apply when pests are in places that are difficult to reach or are in narrow spaces.

[0006] Therefore, the present invention aims to provide a nozzle for making an aerosol product for pest control in which the diffusion of an insecticidal composition toward the user is reduced, and to provide an aerosol product for pest control in which the diffusion of an insecticidal composition toward the user is reduced. [Means for solving the problem]

[0007] As a result of extensive research, the inventors have found that the above problems can be solved by forming the tip of the nozzle in a specific hollow, approximately conical shape, and have thus completed the present invention.

[0008] The gist of the present invention is as follows. [1] A nozzle for use with an aerosol product for pest control, comprising: A hollow cylindrical portion and a hollow substantially conical portion, The hollow cylindrical portion has a total length of 10 to 100 cm and an inner diameter of 1 to 10 mm, The hollow cylindrical portion has one end connected to the pest control aerosol product and the other end connected to the hollow approximately conical portion, the hollow substantially conical portion has an inner diameter that increases from a connection portion with the hollow cylindrical portion toward an end portion of the nozzle, The inner diameter of the hollow approximately conical portion at the end of the nozzle is 35 to 50 mm, and the height of the hollow approximately conical portion is 3 to 10 cm. [2] A nozzle for use with an aerosol product for pest control, comprising: A hollow cylindrical portion and a hollow substantially conical portion, the hollow substantially conical portion has a connection portion located on the hollow cylindrical portion side and a tip portion located on the end side of the nozzle, The hollow cylindrical portion has a total length of 40 to 100 cm and an inner diameter of 1 to 10 mm, The hollow cylindrical portion has one end connected to the pest control aerosol product and the other end connected to the connection portion, the hollow substantially conical portion has an inner diameter that increases from a connection portion with the hollow cylindrical portion toward an end portion of the nozzle, the connecting portion has an inner diameter that increases linearly and continuously with the same change width from the connecting portion with the hollow cylindrical portion to the connecting portion with the tip portion, the total length is 2 to 5 cm, and the inner diameter of the connecting portion with the tip portion is 5 to 15 mm; The tip portion has an inner diameter that increases linearly from the connection portion with the connecting portion toward the end of the nozzle at the same continuous change amount, the change amount being greater than the change amount at the connection portion, the tip portion has a height of 2 to 8 cm, and the inner diameter at the end of the nozzle is 35 to 60 mm. [3] The nozzle according to [2] above, wherein the height of the hollow approximately conical portion is 4 to 10 cm. [4] The nozzle according to any one of [1] to [3] above, wherein the hollow approximately conical portion has a brim that is approximately parallel to a bottom surface of the approximately cone at an end opposite to the hollow cylindrical portion. [5] An aerosol product for pest control comprising an aerosol container containing an insecticidal composition comprising an insecticidal active ingredient, a solvent, and a propellant, The pest control aerosol product further includes a spray button for spraying the pesticidal composition in the aerosol container, a spray nozzle through which the pesticidal composition is discharged, and a nozzle connected to the spray nozzle; The nozzle is the nozzle according to any one of [1] to [3] above. Effect of the Invention

[0009] According to the present invention, it is possible to provide an aerosol product for pest control in which the diffusion of the insecticidal composition toward the user is reduced. Therefore, it is possible to reduce the unpleasant feeling of the user due to the odor of the insecticidal composition. In addition, it is possible to reduce the influence of the components contained in the insecticidal composition on the human body. [Brief description of the drawings]

[0010] [Figure 1] FIG. 1 is a schematic diagram for explaining a nozzle according to the present embodiment. [Diagram 2] FIG. 2 is a schematic diagram of the hollow, approximately conical portion of the nozzle of Example 4. [Diagram 3]FIG. 3 is a schematic diagram of the hollow, approximately conical portion of the nozzle of Example 5. As shown in FIG. [Figure 4] FIG. 4 is a schematic diagram of the hollow, approximately conical portion of the nozzle of Example 6. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] The present invention will be described in detail below, but the present invention is not limited to the following embodiments, and can be modified as desired without departing from the gist of the present invention. In addition, the symbol "to" indicating a numerical range is used to mean that the numerical values ​​before and after it are included as the lower and upper limits.

[0012] "nozzle" The nozzle according to this embodiment is attached to an aerosol product for exterminating pests when used. 1, the nozzle 10 has a hollow columnar portion 12 and a hollow approximately conical portion 11, and the hollow columnar portion 12 has a total length 1 of 10 to 100 cm and an inner diameter d of 1 to 10 mm. One end of the hollow columnar portion 12 is connected to a pest control aerosol product (not shown), and the other end is connected to the hollow approximately conical portion 11.

[0013] The hollow approximately conical portion 11 is connected to the hollow cylindrical portion 12 so that the inner diameter increases from the connection portion with the hollow cylindrical portion 12 toward the end portion of the nozzle 10. The inner diameter of the hollow approximately conical portion 11 at the end portion of the nozzle 10 is 35 to 60 mm, and preferably 35 to 50 mm.

[0014] <Hollow roughly conical section> The hollow approximately conical portion 11 of the nozzle 10 is hollow with the apex of the cone connected to the hollow cylindrical portion 12. The approximately conical shape may be any shape in which the inner diameter D at the end of the nozzle 10 is larger than the inner diameter d at the connection portion with the hollow cylindrical portion 12. Here, the manner in which the inner diameter increases from the inner diameter d to the inner diameter D is not particularly limited. For example, as shown in FIG. 1, it may be composed of only a region in which the inner diameter increases. Also, in addition to the region in which the inner diameter increases, it may further have at least one of a region in which the inner diameter does not change and a region in which the inner diameter decreases. The rate of increase in the inner diameter in the region in which the inner diameter increases may be constant or may change. The shape of the bottom surface of the approximately cone includes a circular shape, an elliptical shape, and also an approximately polygonal shape. In addition, when the shape of the connection part between the hollow approximately conical part 11 and the hollow cylindrical part 12 is different from the shape of the bottom surface of the approximately cone, that is, when they are not similar shapes, the shape is changed in the region where the inner diameter changes.

[0015] The nozzle 10 according to this embodiment has the hollow, approximately conical portion 11 of the above-mentioned shape, and therefore can reduce the diffusion of the insecticidal composition contained in the pest control aerosol product to which the nozzle 10 is connected toward the user.

[0016] The inner diameter D of the hollow approximately conical portion 11 at the end of the nozzle 10 according to this embodiment is 35 to 60 mm. By making the inner diameter D 35 mm or more, the force of spray of the insecticidal composition contained in the pest control aerosol product to which the nozzle 10 is connected is reduced, and the insecticidal composition is retained in the hollow approximately conical portion 11, thereby reducing the diffusion of the insecticidal composition toward the user. From this viewpoint, the inner diameter D is 35 mm or more, preferably 40 mm or more, may be 44 mm or more, or may be 50 mm or more. On the other hand, by making the inner diameter D 60 mm or less, the insecticidal composition contained in the pest control aerosol product to which the nozzle 10 is connected can be sprayed intensively on pests, resulting in excellent insecticidal properties. Also, the diffusion of the insecticidal composition toward the user is suitably reduced. From this viewpoint, the inner diameter D is 60 mm or less, and preferably 50 mm or less.

[0017] In this embodiment, the height H of the hollow approximately conical portion 11 is preferably 3 to 10 cm. From the viewpoint of reducing the diffusion of the insecticidal composition toward the user, the height H is preferably 3 cm or more, more preferably 3.5 cm or more, and even more preferably 4 cm or more. From the viewpoint of intensively spraying the insecticidal composition against pests, the height H is preferably 10 cm or less, more preferably 9.5 cm or less, and even more preferably 9 cm.

[0018] It is also preferable that the hollow approximately conical portion 11 in this embodiment has a shape having a connection portion 11a located on the hollow cylindrical portion side, and a tip portion 11b located on the end side of the nozzle. In this case, it is preferable that the inner diameter of the connection portion 11a increases linearly and continuously with the same change width from the connection portion with the hollow cylindrical portion to the connection portion with the tip portion 11b. In addition, the height H corresponding to the entire length of the connection portion 11a 31 The inner diameter D' of the connecting portion with the tip portion 11b is preferably 2 to 5 cm. 30 The thickness is preferably 5 to 15 mm.

[0019] Above height H 31 The thickness is preferably 2 to 5 cm, may be 2.5 cm or more, may be 3 cm or more, and may be 4.5 cm or less, or may be 4 cm or less. Above inner diameter D' 30 The thickness is preferably 5 to 15 mm, may be 8 mm or more, may be 10 mm or more, and may be 14 mm or less, or may be 13 mm or less.

[0020] It is preferable that the inner diameter of the tip portion 11b increases continuously and linearly with the same change width from the connection portion with the connection portion 11a toward the end of the nozzle, and it is more preferable that the change width is larger than the change width at the connection portion 11a. In addition, the height H corresponding to the entire length of the tip portion 11b 32 The inner diameter D of the nozzle at the end of the tip 11b is preferably 2 to 8 cm. 30 is preferably 35 to 60 mm.

[0021] Above height H 32The distance is preferably 2 to 8 cm, may be 3 cm or more, may be 4 cm or more, and may be 7 cm or less, or may be 6 cm or less. Above inner diameter D 30 is preferably 35 to 60 mm, may be 40 mm or more, may be 44 mm or more, or may be 50 mm or more.

[0022] In the above embodiment, the height H of the hollow cone portion 30 The height H is preferably 4 to 10 cm. 30 is the height H corresponding to the entire length of the connection portion 11a 31 and a height H corresponding to the entire length of the tip portion 11b. 32 It means the sum of. The height H of the hollow cone 30 The length is preferably 4 to 10 cm, but may be 3 cm or more, 3.5 cm or more, 5 cm or more, or 6 cm or more, and may be 9.5 cm or less, or 9 cm or less.

[0023] In this embodiment, the hollow approximately conical portion 11 preferably has a flange 13 that is approximately parallel to the bottom surface of the approximately cone at the end opposite to the hollow cylindrical portion 12. The flange 13 can further reduce the diffusion of the insecticidal composition toward the user. The flange 13 is not particularly limited in shape or size as long as it is wider than the bottom surface of the approximately cone in the hollow approximately cone portion 11 .

[0024] The material of the hollow cone portion 11 in this embodiment is not particularly limited, and any material that is conventionally known as a nozzle can be used. For example, it may be a resin material such as polyethylene, or a metal material. In addition, it may be a biodegradable resin material such as polylactic acid, as long as it does not react with the insecticidal composition.

[0025] <Hollow cylindrical section> The hollow columnar portion 12 in this embodiment has a total length l of 10 to 100 cm and an inner diameter d of 1 to 10 mm. Here, from the viewpoint of reducing the diffusion of the insecticidal composition toward the user, the total length 1 is 10 cm, preferably 10.5 cm or more, more preferably 11 cm or more, and when exterminating pests in high places, the total length 1 may be 30 cm or more, or may be 40 cm or more. On the other hand, if the total length 1 is more than 100 cm, the diffusion of the insecticidal composition toward the user is reduced even if the nozzle 10 does not have the hollow approximately conical portion 11. From the viewpoint of the occurrence of the problem of the present invention and the effect thereof, the total length 1 is preferably 100 cm or less, may be 90 cm or less, or may be 80 cm or less.

[0026] In this embodiment, the inner diameter d of the hollow cylindrical portion 12 is 1 to 10 mm. Here, from the viewpoint of reducing the momentum of the sprayed insecticidal composition to some extent when it reaches the hollow approximately conical portion 11 and preferably obtaining the effect of the hollow approximately conical portion 11, the inner diameter d is 1 mm or more, preferably 2 mm or more, and more preferably 3 mm or more. On the other hand, from the viewpoint of preferably maintaining the insecticidal action of the insecticidal composition, the inner diameter d is 10 mm or less, preferably 9 mm or less, and more preferably 8 mm or less.

[0027] The hollow cylindrical portion 12 in this embodiment may be made up of only straight portions, may be made up of only curved portions, or may have both straight and curved portions. Also, it may have a structure that allows it to be freely bent. Furthermore, the inner diameter d of the hollow cylindrical portion 12 may be constant or may vary.

[0028] In this embodiment, one end of the hollow cylindrical portion 12 is connected to the pest control aerosol product, and the other end is connected to the hollow approximately conical portion 11. The connection method between the hollow cylindrical portion 12 and the pest control aerosol product, and the connection between the hollow cylindrical portion 12 and the hollow approximately conical portion 11 are not particularly limited as long as the sprayed insecticidal composition does not leak.

[0029] The material of the hollow cylindrical portion 12 in this embodiment is not particularly limited, and any material that is conventionally known as a nozzle can be used. For example, it may be a resin material such as polyethylene, or a metal material. In addition, it may be a biodegradable resin material such as polylactic acid, as long as it does not react with the insecticidal composition. In this embodiment, the material of the hollow columnar portion 12 and the material of the hollow approximately conical portion 11 may be the same or different.

[0030] <Other configurations> The nozzle 10 according to this embodiment may consist of only the hollow approximately conical portion 11 and the hollow cylindrical portion 12, but may further include any other components as long as the effects of the present invention are not impaired.

[0031] <<Aerosol products for pest control>> The pest control aerosol product according to this embodiment has an aerosol container, an ejection button, an ejection port, and a nozzle. The aerosol container contains an insecticidal composition containing an insecticidal active ingredient, a solvent, and a propellant. Here, the insecticidal active ingredient, the solvent, and the propellant contained in the insecticidal composition can be conventionally known, and they may be contained in a conventionally known ratio. In addition, any other component may be further contained in any ratio.

[0032] By pressing the spray button, the insecticidal composition contained in the aerosol container is sprayed from the nozzle. The insecticidal composition sprayed from the nozzle passes through the nozzle and acts on pests, thereby eliminating them.

[0033] The nozzle may be any of the nozzles described above under "Nozzle," and the preferred aspects are the same.

[0034] The amount of the insecticidal composition sprayed by one spray operation of the pest control aerosol product according to the present embodiment can be a conventionally known embodiment and is not particularly limited. For example, the amount of the insecticidal active ingredient sprayed by one spray operation in the insecticidal composition may be, for example, 1 mg to 50 mg.

[0035] The target pests of the pest control aerosol product according to this embodiment are not particularly limited, and examples thereof include crawling pests such as cockroaches and centipedes, and flying pests such as flies. Among them, from the viewpoint of being able to bring the hollow approximately conical portion 11 of the nozzle 10 in this embodiment closer to the pests and exterminate them, the target pests are preferably crawling pests, and more preferably cockroaches. EXAMPLES

[0036] The present invention will be specifically described below with reference to examples, but the present invention is not limited to these. Examples 1 to 3, 7 and 8 are comparative examples, and Examples 4 to 6 are working examples.

[0037] Evaluation Method A The nozzles of Example 1 (without nozzle) and Examples 2 to 6 were attached to a fragranced cooling aerosol product (Kobayashi Pharmaceutical Co., Ltd., heatstroke prevention, extreme cold spray over clothes, citrus mint scent), and the spray button was pressed for 1 second to eject the contents from the nozzle. Here, the evaluation was performed using the fragranced cooling aerosol product instead of the pest control aerosol product, taking into consideration the effect of the insecticidal composition on the human body and the prevention of nausea associated with multiple sprays of the pest control aerosol product. If the odor detected by a user when spraying the above-mentioned fragranced cooling aerosol product is reduced, it can be considered that the diffusion of the insecticidal composition is reduced even when a pest control aerosol product is used instead of the cooling aerosol product. Specifically, the state before the test was set to 0, and the fragrance intensity when the contents of the fragranced cooling aerosol product of Example 1 (without nozzle) were ejected was set to 100 (standard), and the fragrance strength when the contents of the fragranced cooling aerosol products of Examples 2 to 6 were ejected was judged. The evaluation was made using the average of the values ​​obtained by the sensory evaluation of five subjects. The results are shown in the "Strength" column of "Evaluation Results" in Table 1.

[0038] Evaluation Method B The nozzles of Example 1 (without nozzle), Example 4, Example 6, Example 7 and Example 8 were attached to a fragranced cooling aerosol product (Kobayashi Pharmaceutical Co., Ltd., Heatstroke prevention, Extreme cold spray over clothes, Citrus mint scent), and the spray button was pressed for 1 second to eject the contents from the nozzle. Here, the evaluation was performed using the fragranced cooling aerosol product instead of the pest control aerosol product, taking into consideration the effect of the insecticidal composition on the human body and the prevention of nausea associated with multiple sprays of the pest control aerosol product. If the odor detected by a user when spraying the above-mentioned fragranced cooling aerosol product is reduced, it can be considered that the diffusion of the insecticidal composition is reduced even when a pest control aerosol product is used instead of the cooling aerosol product. Specifically, the state before the test was set to 0, and the fragrance intensity when the contents of the fragranced cooling aerosol product of Example 1 (without nozzle) were ejected was set to 100 (standard), and the fragrance intensity when the contents of the fragranced cooling aerosol products of Examples 4, 6, 7, and 8 were ejected was judged. The evaluation was made using the average of the values ​​obtained by the sensory evaluation of five subjects. The results are shown in the "Strength" column of "Evaluation Results" in Table 2.

[0039] Test Example Example 1: A fragranced cooling aerosol product (Kobayashi Pharmaceutical Co., Ltd., heatstroke prevention, extreme cold spray to wear over clothes, citrus mint scent) was prepared and used as is without attaching a nozzle to the nozzle.

[0040] Example 2: A scented cooling aerosol product (Kobayashi Pharmaceutical Co., Ltd., heatstroke prevention, extreme cold spray to wear over clothes, citrus mint scent) was prepared, and a hollow cylindrical nozzle (made of polyethylene) with a total length l of 20.5 cm and an inner diameter d of 6 mm was connected to the nozzle.

[0041] Example 3: A scented cooling aerosol product (Kobayashi Pharmaceutical Co., Ltd., heatstroke prevention, extreme cold spray to wear over clothes, citrus mint scent) was prepared, and a hollow cylindrical nozzle (made of polyethylene) with a total length l of 13.0 cm and an inner diameter d of 4 mm was connected to the nozzle.

[0042] Example 4: A scented cooling aerosol product (Kobayashi Pharmaceutical Co., Ltd., Heatstroke Prevention Extreme Cold Spray for Wearing Over Clothes, Citrus Mint Scent) was prepared and a nozzle was attached to the nozzle. A schematic diagram of the hollow, approximately conical part of the nozzle is shown in FIG. 2. The hollow cylindrical part of the nozzle has a total length of l: 13.0 cm and an inner diameter of d 10 The hollow cylindrical part is connected to the end of the cone, and the inner diameter of the cone is d 10 : 4mm, height H 10 : 3.5 cm, inner diameter D at the end of the nozzle 10 The diameter is 4.4 cm, and the approximately conical shape of the tube is cut near the apex to form a pudding-like shape connected to the hollow cylindrical section. It is made of polyethylene.

[0043] Example 5: A scented cooling aerosol product (Kobayashi Pharmaceutical Co., Ltd., Heatstroke Prevention Extreme Cold Spray for Wearing Over Clothes, Citrus Mint Scent) was prepared and a nozzle was attached to the nozzle. A schematic diagram of the hollow, approximately conical part of the nozzle is shown in FIG. 3. The hollow cylindrical part of the nozzle has a total length of l: 11.4 cm and an inner diameter d 20 The hollow cone part connected to the end of the tube has an inner diameter of d 20 : 6mm, height H 20 : 5.0 cm, inner diameter D at the end of the nozzle 20 The diameter of the cone is 5.5 cm, and the cone is made of polyethylene and has a cylindrical shape. As shown in FIG. 3, the upper surface of the cone, which is the connection part with the hollow cylindrical part, has an inner diameter D' 20 : 4.5 cm, and the height H 21 :1.0cm, the inner diameter is the inner diameter of the bottom D 20The inner diameter of the cylinder increases continuously until it reaches the same inner diameter of 5.5 cm. The height H 22 The diameter B of the hollow cone is 4.0 cm. 20 was 6.5cm.

[0044] Example 6: A scented cooling aerosol product (Kobayashi Pharmaceutical Co., Ltd., Heatstroke Prevention Extreme Cold Spray for Wearing Over Clothes, Citrus Mint Scent) was prepared and a nozzle was attached to the nozzle. A schematic diagram of the hollow, roughly conical part of the nozzle is shown in FIG. 4. The hollow cylindrical part of the nozzle has a total length of l: 40 cm and an inner diameter of d 30 The hollow cylindrical part is made of polyethylene and has a diameter of 6 mm. The hollow cylindrical part is connected to the end of the hollow cylindrical part. The hollow cylindrical part has a connecting part and a tip part. The connecting part has an inner diameter d 30 : 6mm, inner diameter D' of the connection part with the tip 30 : 1.2cm, and height H 31 The inner diameter is 4.0 cm, and increases linearly at the same rate. The inner diameter D' at the tip of the connector is 30 : 1.2 cm, inner diameter D of the bottom surface of the nozzle end 30 : 5.8cm, height H 32 The inner diameter of the hollow cone is 4.5 cm, and the inner diameter increases linearly at the same rate. 30 is 8.5 cm.

[0045] Example 7: For the nozzle in Example 4, the inner diameter D at the end of the nozzle of the hollow approximately conical part 10 The nozzle was connected to the nozzle of a fragranced cooling aerosol product (Kobayashi Pharmaceutical Co., Ltd., heatstroke prevention, extreme cold spray over clothes, citrus mint scent) in the same manner as in Example 4, except that the nozzle length was changed from 4.4 cm to 10 cm (100 mm).

[0046] Example 8: For the nozzle in Example 6, the inner diameter D of the bottom surface of the nozzle tip at the tip of the hollow cone section 30 The nozzle was connected to the nozzle of a fragranced cooling aerosol product (Kobayashi Pharmaceutical Co., Ltd., heatstroke prevention, extreme cold spray over clothes, citrus mint scent) in the same manner as in Example 6, except that the nozzle length was changed from 5.8 cm to 10 cm (100 mm).

[0047] [Table 1]

[0048] [Table 2]

[0049] From the above results, no significant difference was observed due to the inner diameter d or total length l of the hollow cylindrical portion, but by connecting a nozzle having a hollow approximately conical portion, the diffusion of the odor of the sprayed cooling aerosol product toward the user was effectively reduced. In particular, a comparison between Examples 4 and 5 shows that the effect of reducing diffusion was more effective by using a hollow approximately conical portion with a brim.

[0050] Also, from a comparison between Example 4 and Example 6, it can be said that the effect of reducing diffusion was more effective by at least one of enlarging the hollow approximately conical portion and by approximately doubling the overall length l of the hollow cylindrical portion. On the other hand, from a comparison between Example 4 and Example 7 and a comparison between Example 6 and Example 8, it is not the case that the larger the hollow approximately conical portion, the better, and the effect of reducing diffusion was particularly remarkable when the inner diameter of the hollow approximately conical portion at the end of the nozzle was 60 mm or less.

[0051] Furthermore, it was confirmed that the nozzles of Examples 4 to 6 were connected to a pest control aerosol product (Gokijet, manufactured by Earth Chemical Co., Ltd.) and sprayed against cockroaches, and that the insecticidal effect was also favorably obtained. In addition, in each of Examples 4 to 6, it was confirmed that the odor toward the user was reduced and the diffusion of the insecticidal composition toward the user was reduced compared to the case where the pest control aerosol product was sprayed without a nozzle (number of subjects: 1). [Explanation of symbols]

[0052] 10 Nozzles 11 Hollow approximately conical portion 11a Connection 11b Tip 12 Hollow cylindrical section 13. Brim

Claims

1. A nozzle for use with an aerosol product for pest control, comprising: A hollow cylindrical portion and a hollow substantially conical portion, The hollow cylindrical portion has a total length of 10 to 100 cm and an inner diameter of 1 to 10 mm, The hollow cylindrical portion has one end connected to the pest control aerosol product and the other end connected to the hollow approximately conical portion, the hollow substantially conical portion has an inner diameter that increases from a connection portion with the hollow cylindrical portion toward an end portion of the nozzle, The inner diameter of the hollow approximately conical portion at the end of the nozzle is 35 to 50 mm, and the height of the hollow approximately conical portion is 3 to 10 cm.

2. A nozzle for use with an aerosol product for pest control, comprising: A hollow cylindrical portion and a hollow substantially conical portion, the hollow substantially conical portion has a connection portion located on the hollow cylindrical portion side and a tip portion located on the end side of the nozzle, The hollow cylindrical portion has a total length of 40 to 100 cm and an inner diameter of 1 to 10 mm, The hollow cylindrical portion has one end connected to the pest control aerosol product and the other end connected to the connection portion, the hollow substantially conical portion has an inner diameter that increases from a connection portion with the hollow cylindrical portion toward an end portion of the nozzle, the connecting portion has an inner diameter that increases linearly and continuously with the same change width from the connecting portion with the hollow cylindrical portion to the connecting portion with the tip portion, the total length is 2 to 5 cm, and the inner diameter of the connecting portion with the tip portion is 5 to 15 mm; The tip portion has an inner diameter that increases linearly from the connection portion with the connecting portion toward the end of the nozzle at the same continuous change amount, the change amount being larger than the change amount at the connecting portion, the tip portion has a height of 2 to 8 cm, and the inner diameter at the end of the nozzle is 35 to 60 mm.

3. The nozzle according to claim 2, wherein the height of the hollow, approximately conical portion is 4 to 10 cm.

4. 4. The nozzle according to claim 1, wherein the hollow approximately conical portion has a flange approximately parallel to a bottom surface of the approximately cone at an end opposite to the hollow cylindrical portion.

5. An aerosol product for pest control comprising an aerosol container containing an insecticidal composition comprising an insecticidal active ingredient, a solvent, and a propellant, The pest control aerosol product further includes a spray button for spraying the pesticidal composition in the aerosol container, a spray nozzle through which the pesticidal composition is discharged, and a nozzle connected to the spray nozzle; The nozzle is an aerosol product for pest control according to any one of claims 1 to 3.

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