Spray-type insect repellent products
The spray-type insect repellent product with specific composition and particle size enhances application discriminability, uniformity, and adhesion, addressing uneven application issues in existing repellents.
Patent Information
- Application Number
- JP2021166604
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2020-11-17
- Filing Date
- 2021-10-11
- Publication Date
- 2026-07-13
- Estimated Expiration
- 2041-10-11
AI Technical Summary
Existing spray-type insect repellents face challenges in ensuring proper application discriminability, uniformity, and adhesion, particularly when used on children, due to restrictions on DEET usage and uneven application of other repellents like icaridin.
A spray-type insect repellent product containing insect repellent components, essential oils, and an organic solvent, with a coating spray coefficient of -1.8 to 6.0, and a median particle size of 30-160 μm, enhancing application discriminability, uniformity, and adhesion.
The product provides improved application discriminability, uniformity, and adhesion, making it safe for use around children and ensuring even distribution of the repellent.
Smart Images

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Abstract
Description
[Technical Field]
[0001] The present invention relates to a spray-type insect repellent product. More specifically, the present invention relates to a spray-type insect repellent product in which an insect repellent composition containing an insect repellent component, essential oils, and an organic solvent is filled and a nozzle is formed, and which exhibits excellent application discriminability, uniformity of application, and adhesion when the insect repellent composition is sprayed. [Background technology]
[0002] Conventionally, insect repellents containing N,N-diethyl-m-toluamide (DEET), picaridin, ethyl 3-(Nn-butyl-N-acetyl)aminopropionate, p-menthane-3,8-diol, etc., are known. (Patent Documents 1, 2, etc.) [Prior art documents] [Patent Documents]
[0003] [Patent Document 1] Japanese Patent Publication No. 2018-118922 [Patent Document 2] Japanese Patent Publication No. 2018-35150 [Overview of the project] [Problems that the invention aims to solve]
[0004] However, among these, DEET has restrictions on the number of times it can be used when used by children under 12 years of age. Therefore, when used on children (especially preschoolers), it is necessary for a guardian to carefully apply it to the child. Icaridin and other similar products do not have the same restrictions on use for children under 12 years of age as DEET, but when used on children, it is common for a guardian to apply it to the child. Therefore, when a guardian uses a spray-type insect repellent product on a child, it is important to be able to properly identify the applied area, spray the insecticide evenly, and ensure that a sufficient amount of insecticide is stably applied during spraying, in order to avoid excessive use of the insect repellent ingredient, uneven application, or missed spots.
[0005] The present invention has been made in view of the above problems, and aims to provide a spray-type insect repellent product in which an insect repellent composition containing an insect repellent component, essential oils, and an organic solvent is filled and a nozzle is formed, and which exhibits excellent application discriminability, application uniformity, and application adhesion when the insect repellent composition is sprayed.
[0006] The present inventors conducted diligent studies to solve the above problems and, as a result, found that by filling a spray-type insect repellent product with a nozzle with an insect repellent composition containing insect repellent components, essential oils, and organic solvents such that the application spray coefficient described below falls within a certain range, the discriminability of the application when the insect repellent composition is sprayed is improved, and furthermore, the uniformity and adhesion of the application are also excellent, leading to the completion of the present invention. [Means for solving the problem]
[0007] In other words, the present invention relates to the following. (1)(a) an insect repellent component selected from the group consisting of picaridin, 3-(Nn-butyl-N-acetyl)aminopropionate ethyl ester, p-menthane-3,8-diol, and DEET, (b) Essential oils and, (c) A spray-type insect repellent product having a nozzle formed and filled with an insect repellent composition containing an organic solvent, wherein the coating spray coefficient defined by the following formula (I) is -1.8 to 6.0.
[0008]
number
[0009] (2) In the spray-type insect repellent product, the median particle size (D) of the insect repellent composition at a distance of 15 cm from the nozzle. 50 )r15 is adjusted to be 30-160 μm in size, as described in (1) for the spray-type insect repellent product. (3) The spray-type insect repellent product according to (1) or (2), wherein the essential oil in (b) is one or more selected from the group consisting of ylang-ylang oil, fennel oil, orange oil, cassia oil, chamomile oil, grapefruit oil, clove oil, cinnamon oil, perilla oil, cedar oil, cedarwood oil, citronella oil, cinnamon oil, cinnamon leaf oil, jasmine oil, spearmint oil, geranium oil, thyme white oil, clove oil, tea tree oil, turpentine oil, wild rose oil, pine oil, patchouli oil, peppermint oil, cypress oil, pimento oil, sandalwood oil, fennel oil, vetiver oil, penny royal oil, peppermint oil, bergamot oil, eucalyptus oil, lime oil, lavandin oil, lavender oil, rue oil, lemon oil, lemongrass oil, lemon eucalyptus oil, rosehip oil, rosemary oil, and Roman chamomile oil. (4) The spray-type insect repellent product according to any one of (1) to (3), wherein the (c) organic solvent is one or more selected from the group consisting of alcohol-based solvents, glycol-based solvents, and glycol ether solvents. (5) A spray-type insect repellent product according to any one of (1) to (4), containing 0.1 to 5.0 w / v% of the essential oil (b) based on the total amount of the insect repellent composition. (6) A spray-type insect repellent product described in any one of (1) to (5) that is sprayed onto the human body. (7) A spray-type insect repellent product according to any one of (1) to (6) which is sprayed onto the arm or ankle. [Effects of the Invention]
[0010] According to the present invention, it is possible to provide a spray-type insect repellent product that offers improved application discrimination when the insect repellent composition is sprayed, as well as excellent application uniformity and adhesion. Furthermore, because it uses essential oils, it can be sprayed safely even around children. [Modes for carrying out the invention]
[0011] Hereinafter, the spray-type pest repellent product of the present invention will be described. However, the present invention is not intended to be limited to the embodiments and examples described below. In this specification, the unit of content "w / v%" is synonymous with "g / 100ml". Also, when there is a notation "~" indicating a range in this specification, it is assumed to include the upper and lower limits.
[0012] <Spray-type pest repellent product> The spray-type pest repellent product of the present invention is a spray-type pest repellent product filled with a pest repellent composition containing (a) one or more pest repellent components selected from the group consisting of picaridin, ethyl 3-(N-n-butyl-N-acetyl)aminopropionate, p-menthane-3,8-diol, and deet, (b) essential oil, and (c) organic solvent, and having a spray nozzle formed, and characterized in that the coating spray coefficient described below is -1.8 to 6.0.
[0013] [First Embodiment] In this embodiment, as an aspect of the spray-type pest repellent product, the case where the spray-type pest repellent product is a pump product will be described. The spray-type pest repellent product of this embodiment is a pump product including a pump container filled with a pest repellent composition and an actuator attached to the pump container and having a spray nozzle formed.
[0014] <Pest repellent composition> The pest repellent composition is the content filled in the pump container, and contains (a) one or more pest repellent components (hereinafter also referred to as component (a)) selected from the group consisting of picaridin, ethyl 3-(N-n-butyl-N-acetyl)aminopropionate, p-menthane-3,8-diol, and deet, (b) essential oil (hereinafter also referred to as component (b)), and (c) organic solvent (hereinafter also referred to as component (c)), and the coating spray coefficient described below is -1.8 to 6.0. Hereinafter, each component, the coating spray coefficient, etc. will be described.
[0015] <Component (a)> (a) component is a pest repellent component. The pest repellent components used in the present invention are one or more selected from the group consisting of ichangin, ethyl 3-(N-n-butyl-N-acetyl)aminopropionate, p-menthane-3,8-diol, and deet. These pest repellent components can preferably repel not only sanitary pests such as mosquitoes, midges, houseflies, fruit flies, ticks, and fleas (excluding bedbugs among sanitary pests), but also nuisance pests such as blackflies and butterflies. From the viewpoint of significantly obtaining the desired effect of the present embodiment, the lower limit of the concentration of the (a) component in the pest repellent composition in the spray-type pest repellent product is preferably 1 w / v% or more, more preferably 3 w / v% or more, particularly preferably 5 w / v% or more, and the upper limit of the concentration of the (a) component in the pest repellent composition in the pest repellent product is preferably 30 w / v% or less, more preferably 20 w / v% or less, particularly preferably 10 w / v% or less.
[0016] <(b) component> (b) The component is an essential oil. The essential oil used in the present invention is a volatile oily substance obtained from the branches, leaves, rhizomes, bark, fruits, flowers, buds, resins, etc. of plants, and is obtained by separating and refining it from various parts of the plant using methods such as steam distillation, pressing, and extraction. The essential oils used in this invention include ylang-ylang oil, fennel oil, orange oil, cassia oil, chamomile oil, grapefruit oil, clove oil, cinnamon oil, perilla oil, cedar oil, cedarwood oil, citronella oil, cinnamon oil, cinnamon leaf oil, jasmine oil, spearmint oil, geranium oil, thyme white oil, clove oil, tea tree oil, turpentine oil, rosehip oil, pine oil, patchouli oil, peppermint oil, cypress oil, pimento oil, sandalwood oil, fennel oil, vetiver oil, penny royal oil, peppermint oil, bergamot oil, eucalyptus oil, lime oil, lavandin oil, lavender oil, rue oil, lemon oil, lemongrass oil, lemon eucalyptus oil, rosehip oil, rosemary oil, and Roman chamomile oil. Among these, peppermint oil, eucalyptus oil, lavender oil, lemon eucalyptus oil, and rosemary oil are preferred, and peppermint oil, eucalyptus oil, lavender oil, and lemon eucalyptus oil are more preferred. From the viewpoint of significantly obtaining the desired effects of this embodiment, the lower limit of the essential oil concentration in the insect repellent composition of the spray-type insect repellent product is not particularly limited, but it is 0.1 w / v or higher, preferably 0.2 w / v or higher, more preferably 0.3 w / v or higher, and particularly preferably 0.5 w / v or higher. The upper limit of the essential oil concentration in the insect repellent composition that produces the effects of this embodiment is not particularly limited, but from the viewpoint of palatability of the spray-type insect repellent product, it is 5 w / v or lower, preferably 3 w / v or lower, more preferably 2 w / v or lower, and particularly preferably 1.5 w / v or lower.
[0017] <(c) component> (c) Component is an organic solvent. The organic solvent used in the present invention is not particularly limited, but examples include ketone solvents such as acetone, methyl ethyl ketone, diethyl ketone, and cyclohexanone; alcohol solvents such as methanol, ethanol, butanol, 1-propanol, 2-propanol, and 1-butanol; glycol solvents such as ethylene glycol, diethylene glycol, triethylene glycol, propylene glycol, 1,3-butylene glycol, and dipropylene glycol; glycol ether solvents such as diethylene glycol monomethyl ether, diethylene glycol monobutyl ether, triethylene glycol monomethyl ether, and phenoxyethanol; hydrocarbon solvents such as toluene, xylene, n-hexane, n-paraffin, and isoparaffin; and ester solvents such as ethyl acetate, butyl acetate, amyl acetate, and ethyl lactate. Among these, alcohol-based solvents such as methanol, ethanol, butanol, 1-propanol, 2-propanol, and 1-butanol; glycol-based solvents such as ethylene glycol, diethylene glycol, triethylene glycol, propylene glycol, 1,3-butylene glycol, and dipropylene glycol; and glycol ether-based solvents such as diethylene glycol monomethyl ether, diethylene glycol monobutyl ether, triethylene glycol monomethyl ether, and phenoxyethanol are preferred, with ethanol, 2-propanol, propylene glycol, 1,3-butylene glycol, and phenoxyethanol being more preferred. The lower limit of the organic solvent concentration in the insect repellent composition for spray-type insect repellent products is not particularly limited, but it is preferably 10 w / v% or more, more preferably 20 w / v% or more, and especially preferably 30 w / v% or more. The upper limit of the organic solvent concentration in the insect repellent composition that achieves the effects of this embodiment is not particularly limited, but it is preferably 90 w / v% or less, more preferably 80 w / v% or less, and especially preferably 70 w / v% or less.
[0018] <Other ingredients> Furthermore, optional components may be appropriately included in the insect repellent composition as long as they do not hinder the effects of this embodiment. For example, optional components include other insect repellent components other than the component in (a) above, nonionic surfactants, anionic surfactants, cationic surfactants, zwitter surfactants, antioxidants such as butylhydroxytoluene, stabilizers such as sodium edetate, citric acid, and ascorbic acid, inorganic powders such as talc and silicic acid, antibacterial agents (antifungal agents), disinfectants, fragrances, dyes, pH adjusters, UV absorption enhancers, and water.
[0019] Other insect repellent ingredients include phenothrin, dibutylphthalate, 2-ethyl-1,3-hexanediol, p-dichlorobenzene, di-n-butylsuccinate, capric acid diethylamide, and n-propylacetanilide.
[0020] Examples of nonionic surfactants include polyoxyethylene hydrogenated castor oil (POE hydrogenated castor oil), polyoxyethylene alkyl ether (POE alkyl ether), polyoxyethylene alkylphenyl ether (POE alkylphenyl ether), polyoxyethylene higher fatty acid ester (POE higher fatty acid ester), polyoxyethylene sorbitan fatty acid ester (POE sorbitan fatty acid ester), polyoxyethylene glycerin fatty acid ester (POE glycerin fatty acid ester), coconut oil fatty acid diethanolamide, polyoxyethylene polyoxypropylene alkyl ether (POEPOP alkyl ether), fatty acid alkanolamide, alkylamine oxide, and the like.
[0021] <Coating spray coefficient> In the present invention, the insect repellent composition is solubilized using the above-mentioned components (a), (b), and (c), and the insect repellent composition is prepared such that the coating spray coefficient defined by the following formula (I) is -1.8 to 6.0, preferably -1.6 to 3.0, more preferably -1.5 to 3.0, and even more preferably -1.4 to 2.0.
[0022]
number
[0023] The inventors created a mathematical formula using (a) component concentration (w / v%), (b) component concentration (w / v%), (c) component concentration (w / v%), and items consisting of these as the numerator, denominator, or exponent, and then created a logarithm of the said formula with base 10. By considering the test results regarding coating discriminability, coating uniformity, and coating adhesion, the inventors derived the above formula (I).
[0024] In the above formula (I), an increase in the numerical values of (a) component concentration and (b) component concentration is a factor that improves the discriminability and adhesion of the coating in spray application, while (c) component concentration is a factor that changes the uniformity of the coating in spray application. When the values calculated from these numerical values show a specific value, it is presumed that when the insect repellent composition is spray-applied, the discriminability of the coating will improve, and furthermore, excellent coating uniformity and adhesion can be achieved.
[0025] <ph> Furthermore, from the viewpoint of component stability and low irritation to skin and mucous membranes, the insect repellent composition of this embodiment only needs to have a pH (20°C) of 4.3 to 9.0. Preferably, the pH is 4.5 to 9.0, more preferably 5.0 to 9.0, and even more preferably 5.5 to 8.0, making it a weakly acidic or neutral insect repellent composition. The pH of the insect repellent composition can be adjusted as appropriate using a pH adjusting agent such as sodium bicarbonate or sodium hydroxide. The pH of the insect repellent composition can be easily measured using a commercially available pH meter. If the insect repellent composition does not contain water, the pH is defined as the value measured after diluting the insect repellent composition 20 times with purified water.
[0026] <Pump container> The spray-type insect repellent product of this embodiment is an insect repellent product in which the above-mentioned insect repellent composition is filled into a pump container. The material of the pump container is not particularly limited, but examples include polyethylene terephthalate (PET) containers, polyethylene (PE) containers, polypropylene (PP) containers, glass containers, etc. From the viewpoint of handling, polyethylene terephthalate (PET) containers, polyethylene (PE) containers, and polypropylene (PP) containers are preferred, and polyethylene terephthalate (PET) containers are more preferred. The container may be transparent or opaque, colorless or colored, and may contain glitter. If the container is colored, the color of the container is not particularly limited, but examples include green, blue, pink, red, yellow, etc. Also, when using a transparent container, part or all of the container may be covered with a film or the like. For example, the transparent area is not particularly limited as long as there is a transparent area in which the contents can be seen, such as a container in which the label / printed part for content indication is opaque or semi-transparent and the rest is transparent, or an opaque container that has only a transparent part the size of a viewing window.
[0027] <Actuator> The actuator is a component that closes the opening of the pump container and sprays the insect repellent composition filled inside the pump container. The actuator has a valve mechanism for dispensing the insect repellent composition filled inside the pump container, a stem mechanism for operating the valve mechanism, and a nozzle that works in conjunction with the stem mechanism to spray the insect repellent composition dispensed by the valve mechanism. The spraying component also has a trigger that is operated by the user.
[0028] In this embodiment, the spray-type insect repellent product is activated by the user operating the trigger, which activates the stem mechanism and valve mechanism, allowing the insect repellent composition to be dispensed from the pump container and sprayed from the nozzle of the spraying member.
[0029] The shape of the actuator is not particularly limited, but examples include trigger type and finger pump type. The size of the nozzle of these actuators is, for example, 0.05 to 1.0 mm in diameter, and there may be one or more nozzles. The inner diameter of the dip tube is, for example, 1.0 to 10.0 mm, with 1.0 to 5.0 mm being preferred. The amount injected per injection is, for example, 0.05 to 3.0 mL, with 0.05 to 1.5 mL being preferred. In the case of a pressurized pump, the amount injected per second is, for example, 0.1 g to 5.0 g.
[0030] The method for manufacturing the spray-type insect repellent product of this embodiment is not particularly limited. For example, the spray-type insect repellent product can be manufactured by filling a pump container with an insect repellent composition and closing the opening of the transparent container with an actuator.
[0031] The insect repellent composition sprayed by the spray-type insect repellent product of this embodiment has a median particle size (D) at a distance of 15 cm from the nozzle. 50 The lower limit of r15 is preferably 30 μm or more, more preferably 50 μm or more, and even more preferably 60 μm or more, from the viewpoint of obtaining the desired effects of this embodiment in a significant manner. Also, the median particle size (D 50 The upper limit of r15 is preferably 160 μm or less, more preferably 150 μm or less, and even more preferably 100 μm or less, from the viewpoint of obtaining the desired effect of this embodiment in a significant manner. Note that the median particle size (D) of the insect repellent composition at a position 15 cm away from the nozzle of the spray-type insect repellent product. 50 r15 can be measured using the Spraytec laser light scattering particle size distribution analyzer (manufactured by Malvern Panalytical).
[0032] The target area for spraying the insect repellent spray of this embodiment is not particularly limited, but examples include the human body and clothing. Considering the spirit of the present invention, which is excellent in application discriminability, application uniformity, and application adhesion, it can be suitably sprayed on the human body, and more suitably sprayed on the arms or ankles. Furthermore, the target age for use of the insect repellent spray of this embodiment is not particularly limited, but it can be used by both adults and children (however, if DEET is used as component (a), use on children under 6 months of age is not recommended). In particular, it can be suitably used on children aged 0 to 12 years, and more suitably on children aged 0 to 6 years.
[0033] [Second Embodiment] In this embodiment, one example of a spray-type insect repellent product is described in which the spray-type insect repellent product is an aerosol product. The spray-type insect repellent product of this embodiment is an aerosol product comprising an aerosol container pressurized and filled with an insect repellent composition and a propellant, and an actuator attached to the aerosol container and having a nozzle formed thereon.
[0034] <Insect repellent composition> The insect repellent composition is the contents that are pressurized and filled into an aerosol container together with a propellant, as described later, and contains (a) one or more insect repellent components selected from the group consisting of picaridin, 3-(Nn-butyl-N-acetyl)aminopropionate ethyl ester, p-menthane-3,8-diol, and DEET, (b) an essential oil, and (c) an organic solvent, and has a coating spray coefficient of -1.8 to 6.0 as described below. The first embodiment is the same as the insect repellent composition described above.
[0035] <propellant> The propellant is the contents that are pressurized and filled into the aerosol container together with the insect repellent composition. The propellant is sprayed together with the insect repellent composition when an actuator, described later, is activated. At that time, the propellant provides the propulsion force for spraying the insect repellent composition and also atomizes the insect repellent composition.
[0036] The propellants are not particularly limited, but examples include liquefied petroleum gas (LPG) such as propane, n-butane, and isobutane; liquefied gases such as n-pentane, isopentane, dimethyl ether (DME), and hydrofluoroolefins such as trans-1,3,3,3-tetrafluoropropane-1-ene, trans-2,3,3,3-tetrafluoropropane-1-ene, and HFO1234ze; and compressed gases such as nitrogen gas, carbon dioxide, nitrous oxide, and compressed air. The above propellants can be used alone or in mixtures, and liquefied gases and compressed gases may be used in combination.
[0037] When liquefied gas is used as a propellant, the amount of liquefied gas to be filled is not particularly limited. For example, the amount of liquefied gas filled is 20 to 80% by volume relative to the total amount of the insect repellent composition and the propellant. Furthermore, it is preferable that the amount of liquefied gas filled is such that the pressure inside the aerosol container at 25°C is 0.1 to 0.7 MPa.
[0038] When compressed gas is used as a propellant, the amount of compressed gas to be filled is not particularly limited. For example, the amount of compressed gas to be filled is such that the pressure inside the aerosol container at 25°C is 0.1 to 1.0 MPa.
[0039] <Aerosol container> In this embodiment, the insect repellent composition is pressurized and filled into an aerosol container. The aerosol container is not particularly limited, but one example is a substantially cylindrical pressure-resistant container with an opening formed at the top. The opening is a filling port for filling with the insect repellent composition, and after the insect repellent composition is filled, it is closed by an actuator described later.
[0040] The material of an aerosol container is not particularly limited, but examples include metal containers such as aluminum or tinplate, polyethylene terephthalate (PET) containers, and pressure-resistant glass containers.
[0041] <Actuator> The actuator is a component that closes the opening of the aerosol container and sprays the insect repellent composition filled in the aerosol container together with the propellant. The actuator comprises a valve mechanism for dispensing the insect repellent composition and propellant filled in the aerosol container, a stem mechanism for operating the valve mechanism, and a spraying member that works in conjunction with the stem mechanism to spray the insect repellent composition dispensed by the valve mechanism together with the propellant. The spraying member has a nozzle formed therein for spraying the insect repellent composition together with the propellant. The spraying member also includes a trigger that is operated by the user.
[0042] In this embodiment of the spray-type insect repellent product, the trigger is operated by the user, which activates the stem mechanism and valve mechanism, creating communication between the inside and outside of the aerosol container. As a result, the insect repellent composition and propellant inside the aerosol container are drawn out of the aerosol container according to the pressure difference between the inside and outside of the container and sprayed from the nozzle of the spraying member.
[0043] The method for manufacturing the spray-type insect repellent product of this embodiment is not particularly limited. For example, the spray-type insect repellent product can be manufactured by filling an aerosol container with an insect repellent composition, opening and closing the aerosol container with an actuator, and pressurizing and filling the propellant through the nozzle or stem mechanism of the actuator's spraying member.
[0044] The pest repellent composition sprayed by the spray-type insect repellent product of this embodiment has a median particle size (D) at a distance of 15 cm from the nozzle. 50 The lower limit of r15 is preferably 30 μm or more, more preferably 50 μm or more, and even more preferably 60 μm or more, from the viewpoint of obtaining the desired effects of this embodiment in a significant manner. Also, the median particle size (D 50 The upper limit of r15 is preferably 160 μm or less, more preferably 150 μm or less, and even more preferably 100 μm or less, from the viewpoint of obtaining the desired effect of this embodiment in a significant manner. Note that the median particle size (D) of the insect repellent composition at a position 15 cm away from the nozzle of the spray-type insect repellent product. 50 r15 can be measured using the Spraytec laser light scattering particle size distribution analyzer (manufactured by Malvern Panalytical).
[0045] The target area for spraying the insect repellent spray of this embodiment is not particularly limited, but examples include the human body and clothing. Considering the spirit of the present invention, which is excellent in application discriminability, application uniformity, and application adhesion, it can be suitably sprayed on the human body, and more suitably sprayed on the arms or ankles. Furthermore, the target age for use of the insect repellent spray of this embodiment is not particularly limited, but it can be used by both adults and children (however, if DEET is used as component (a), use on children under 6 months of age is not recommended). In particular, it can be suitably used on children aged 0 to 12 years, and more suitably on children aged 0 to 6 years. [Examples]
[0046] Hereinafter, the present invention will be specifically described with reference to examples, but the present invention is not limited thereto.
[0047] [1] Potency test 1 (a) 5.0 g (5 w / v%) of icariin, (b) 0.9 g (0.9 w / v%) of peppermint oil, (c) 45 g (45 w / v%) of absolute ethanol, and purified water were mixed in the remaining amount (balance) to prepare a 100 mL pest repellent composition. The above pest repellent composition was filled into a spray container A with a push-down actuator having a nozzle formed thereon to produce a spray-type pest repellent product of Example 1. The median particle diameter (D 50 )r15 of the pest repellent composition at a position 15 cm away from the nozzle of this spray-type pest repellent product was 60 to 80 μm.
[0048] Furthermore, as shown in Tables 1, 2, and 3, each component was blended, and in the same manner as in Example 1, spray-type pest repellent products of Examples 2 to 28 and Comparative Examples 1 to 3 were produced. The median particle diameter (D 50 )r15 of the pest repellent composition at a position 15 cm away from the nozzle of each spray-type pest repellent product was measured by a laser light scattering method particle size distribution measuring device Spraytec (manufactured by Malvern Panalytical). Also, in the present invention, by properly using the following spray containers A to E, the particle size distribution range could be generally adjusted. Spray container A: 60 - 80 μm Spray container B: 80 - 95 μm Spray container C: 100 - 145 μm Spray container D: 150 - 160 μm Spray container E: 30 - 50 μm [[ID=Using the spray-type insect repellent product of Example 1, it was randomly applied to several locations on a mannequin, out of a total of four locations: the left and right ankles and the left and right forearms. After 30 minutes, five researchers were asked to indicate whether or not the insect repellent composition had been applied to each of the four locations without touching them. The average of each participant's correct response rate was calculated and evaluated on a three-point scale according to the following criteria. Similar tests were conducted for the spray-type insect repellent products of Examples 2-28 and Comparative Examples 1-3. (The test results are shown in Tables 1, 2, and 3.) (Evaluation Criteria) A; 90% < (Correct answer rate) ≤ 100% B; 80% < (correct answer rate) ≤ 90% C; (Correct answer rate) ≤ 80%
[0050] [Coating uniformity test] 0.1 g of 7-hydroxycoumarin was added as a fluorescent component to the spray-type insect repellent product of Example 1. The nozzle was set approximately 15 cm away from the arm opposite the dominant arm, and one spray was applied. Afterwards, the room lights were turned off, and the sprayed arm was illuminated with a 20 W black light to observe the spraying pattern. The uniformity of the application was evaluated on a three-point scale according to the following criteria. The evaluation was determined through discussion among all five researchers. Similar tests were conducted on the spray-type insect repellent products of Examples 2-28 and Comparative Examples 1-3. (The test results are shown in Tables 1, 2, and 3.) (Evaluation Criteria) A; evenly applied, B; somewhat uneven, C; Non-uniform
[0051] [Coating adhesion test] A 20cm x 20cm filter paper was placed upright in a tray, and the spray-type insect repellent product of Example 1 was sprayed horizontally from 15cm away from the filter paper. After 30 seconds of spraying, the filter paper was collected, and the weight of the product adhering to the filter paper and the spray weight of the insect repellent product were determined by weight measurement. The adhesion rate was calculated using the following formula (Adhesion rate (%) = Weight adhering to filter paper / Spray weight of sample × 100). The test was repeated 5 times to determine the average adhesion rate and the minimum adhesion rate. The adhesion properties were evaluated on a 3-point scale according to the following criteria. Similar tests were performed on the spray-type insect repellent products of Examples 2-28 and Comparative Examples 1-3. (Test results are shown in Tables 1, 2, and 3.) (Evaluation Criteria) A;[(average adhesion rate)-(minimum adhesion rate)]×100 / (average adhesion rate)≦5%, B;5%<[(average adhesion rate)-(minimum adhesion rate)]×100 / (average adhesion rate)≦10%, C;10%<[(average adhesion rate)-(minimum adhesion rate)]×100 / (average adhesion rate)
[0052] [Table 1]
[0053] [Table 2]
[0054] [Table 3]
[0055] From the above test results, Comparative Example 1, which did not contain component (b), showed insufficient coating discriminability. Furthermore, Comparative Example 2, with a coating spray coefficient of less than -1.8, showed insufficient coating adhesion, and Comparative Example 3, with a coating spray coefficient exceeding 6.0, showed insufficient coating uniformity.
[0056] On the other hand, in Examples 1 to 28, where the coating spray coefficient was within the range of -1.8 to 6.0, it was found that all of the coating discriminability, coating uniformity, and coating adhesion showed good results (all of B or higher). Furthermore, the median particle size (D) of the insect repellent composition at a distance of 15 cm from the nozzle was also measured. 50 In Examples 1-11, 14, 16-18, and 21-28, where r15 was 60-150 μm and the coating spray coefficient was in the range of -1.6-3.0, it was found that the coating discriminability, coating uniformity, and coating adhesion all showed better results (one B and two A). In particular, the median particle size (D) of the insect repellent composition at a distance of 15 cm from the nozzle was found to be better. 50 In Examples 1-8, 10, 11, 17, 18, and 21-28, where r15 was 60-100 μm and the coating spray coefficient was in the range of -1.4-2.0, it was found that the coating discriminability, coating uniformity, and coating adhesion all showed even better results (all three were A).< / ph>
Claims
1. (a) One or more insect repellent components selected from the group consisting of picaridin, 3-(N-n-butyl-N-acetyl)aminopropionate ethyl ester, and p-menthane-3,8-diol, (b) Essential oils and, (c) A spray-type insect repellent product comprising an insect repellent composition containing an organic solvent which is an alcohol-based solvent and / or a glycol ether-based solvent, filled into a container, and an actuator with a nozzle attached to the container, The alcohol-based solvent is one or more selected from the group consisting of methanol, ethanol, 1-propanol, 2-propanol, and 1-butanol. The glycol ether solvent is phenoxyethanol. The actuator comprises a valve mechanism for dispensing the insect repellent composition filled in the container, a stem mechanism for operating the valve mechanism, and a nozzle that is interlocked with the stem mechanism and sprays the insect repellent composition dispensed by the valve mechanism. A spray-type insect repellent product having a coating / spraying coefficient defined by the following formula (I) of -1.6 to 6.
0. [Math 1]
2. (a) One or more insect repellent components selected from the group consisting of picaridin, 3-(N-n-butyl-N-acetyl)aminopropionate ethyl ester, p-menthane-3,8-diol, and DEET, (b) Essential oils and, (c) A spray-type insect repellent product comprising an insect repellent composition containing an organic solvent which is an alcohol-based solvent and / or a glycol ether-based solvent, filled into a container, and an actuator with a nozzle attached to the container, The alcohol-based solvent is one or more selected from the group consisting of methanol, ethanol, 1-propanol, 2-propanol, and 1-butanol. The glycol ether solvent is phenoxyethanol. The actuator comprises a valve mechanism for dispensing the insect repellent composition filled in the container, a stem mechanism for operating the valve mechanism, and a nozzle that is interlocked with the stem mechanism and sprays the insect repellent composition dispensed by the valve mechanism. The coating spray coefficient defined by the following formula (I) is between -1.6 and 6.
0. [Math 1] In the aforementioned spray-type insect repellent product, the median particle size (D) of the insect repellent composition at a distance of 15 cm from the nozzle. 50 r15 is a spray-type insect repellent product adjusted to have a particle size of 30-100 μm.
3. In the aforementioned spray-type insect repellent product, the median particle size (D 50 The spray-type insect repellent product according to claim 2, wherein r15 is adjusted to be 30 to 95 μm.
4. In the aforementioned spray-type insect repellent product, the median particle size (D 50 The spray-type insect repellent product according to claim 3, wherein r15 is adjusted to be 60 to 80 μm.
5. The insect repellent composition contains water, as described in any one of claims 1 to 4.
6. The spray-type insect repellent product according to any one of claims 1 to 5, wherein the essential oil (b) is one or more selected from the group consisting of ylang-ylang oil, fennel oil, orange oil, cassia oil, chamomile oil, grapefruit oil, clove oil, cinnamon oil, perilla oil, cedar oil, cedarwood oil, citronella oil, cinnamon oil, cinnamon leaf oil, jasmine oil, spearmint oil, geranium oil, thyme white oil, clove oil, tea tree oil, turpentine oil, wild rose oil, pine oil, patchouli oil, peppermint oil, cypress oil, pimento oil, sandalwood oil, fennel oil, vetiver oil, penny royal oil, peppermint oil, bergamot oil, eucalyptus oil, lime oil, lavandin oil, lavender oil, rue oil, lemon oil, lemongrass oil, lemon eucalyptus oil, rosehip oil, rosemary oil, and Roman chamomile oil.
7. The spray-type insect repellent product according to any one of claims 1 to 6, wherein it contains 1 to 30 w / v% of the insect repellent component (a) based on the total amount of the insect repellent composition.
8. The spray-type insect repellent product according to any one of claims 1 to 7, wherein the essential oil (b) is contained in an amount of 0.1 to 5.0 w / v% relative to the total amount of the insect repellent composition.
9. The spray-type insect repellent product according to any one of claims 1 to 8, wherein the (c) organic solvent is contained in an amount of 10 to 90 w / v% relative to the total amount of the insect repellent composition.
10. A spray-type insect repellent product according to any one of claims 1 to 9, which is sprayed onto the human body.
11. The spray-type insect repellent product according to claim 10, which is sprayed onto the arm or ankle of the human body.
12. The spray-type insect repellent product according to claim 10 or 11, which, when sprayed onto the human body, allows for non-contact determination of whether or not the insect repellent composition has been applied.
Citation Information
Patent Citations
Insect repellent and insecticide composition
CN108477243A
Pest repelling aerosol
JP1999171703A
Noxious insect repelling composition for human body
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Pest-repelling aerosol product, pest-repelling composition and pest-repelling liquid preparation for external use
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Insect pest repellent for fiber product, and method for repelling insect pest
JP2013006823A
