JP2011132196A - Method for repelling indoor tarsonemidae - Google Patents

Method for repelling indoor tarsonemidae Download PDF

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JP2011132196A
JP2011132196A JP2009294676A JP2009294676A JP2011132196A JP 2011132196 A JP2011132196 A JP 2011132196A JP 2009294676 A JP2009294676 A JP 2009294676A JP 2009294676 A JP2009294676 A JP 2009294676A JP 2011132196 A JP2011132196 A JP 2011132196A
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repelling
propellant
spraying
stock solution
indoor
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JP5516861B2 (en
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Yoshihiro Inoguchi
佳浩 猪口
Yoko Kobayashi
洋子 小林
Yoshihiro Namite
良裕 南手
Koji Nakayama
幸治 中山
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Dainihon Jochugiku Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for repelling indoor tarsonemidae, capable of sufficiently satisfying both the demands for high safety to human body (health) and high repelling effect against indoor tarsonemidae. <P>SOLUTION: The method for repelling indoor tarsonemidae by spraying a stock solution comprising a mite-repelling ingredient and a solvent and a propellant, from their respectively packed containers, toward a space above a place where indoor tarsonemidae inhabit or is possible to inhabit, and thereafter, sedimenting the thus sprayed microparticles to effect their deposition on the place, is provided. In the method, the mite-repelling ingredient is a hard-to-volatile compound; the volume per shot of the spraying is 0.35-0.9 mL; and the volume ratio (the stock solution/propellant (v/v)) is (20-50):(50-80). <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

本発明は、ダニ忌避成分と溶剤とを含む原液並びに噴射剤を、それらの充填容器より屋内塵性ダニ類の棲息する又は棲息するおそれがある場所の上方の空間に向けて噴霧し、そして該噴霧粒子が沈降し前記場所に付着することにより、前記屋内塵性ダニ類を忌避させる方法に関するものである。   The present invention sprays a stock solution containing a tick repellent component and a solvent and a propellant from the filled container toward a space above a place where indoor dust mites inhabit or may inhale, and The present invention relates to a method for repelling the indoor dust mites by causing the spray particles to settle and adhere to the place.

地球上には極めて多種のダニ類が生息し、例えば植物に寄生するミカンハダニ、ナミハダニ類等は農作物に多大な被害を与えている。これらの植物に寄生するダニの駆除を目的とした殺ダニ剤は古くから開発が進められており、また有望な新規化合物が次々と発見されている。
一方で、近年の居住環境の変化により、屋内にコナダニ、ヒョウヒダニ、ホコリダニ等の屋内塵性ダニ類が発生し、不快感を与えるばかりでなく、アレルギー性喘息や皮疹を惹起する等の問題を生じている。
そこで、カーペットや寝具等に処理するための屋内用殺ダニ剤が求められてきたが、植物に寄生するダニに対して有用な殺ダニ剤が必ずしも屋内塵性ダニ類に対して有効ではないという事情があった。これは、植物に寄生するダニ類が主に前気門類に属するのに対し、屋内に生息する塵性ダニ類は主に無気門類に属するという種属差に起因すると考えられている。また、屋内では直接肌に接触する使用場面が多いためにより安全性の高い薬剤の開発が必要とされる。
A great variety of mites live on the earth. For example, citrus mites and nymph mites parasitizing plants cause great damage to crops. Acaricides aimed at controlling mites parasitic on these plants have been developed for a long time, and promising new compounds have been discovered one after another.
On the other hand, due to changes in the living environment in recent years, indoor dust mites such as mites, leopard mites, and dust mites are generated indoors, causing problems such as allergic asthma and skin eruption as well as discomfort. ing.
Therefore, there has been a demand for an indoor acaricide for treating carpets, bedding, etc., but a useful acaricide against mites parasitic on plants is not necessarily effective against indoor dust mites. There was a situation. This is thought to be due to species differences in which mites parasitizing plants mainly belong to the anterior genus, whereas dust mites that live indoors mainly belong to the aerial genus. In addition, since there are many usage scenes that directly contact the skin indoors, it is necessary to develop a safer drug.

一方で、屋内塵性ダニ類を殺すのではなく、人や患者にダニを近づけないようにする、所謂ダニ忌避剤に関する技術も幾つか提案されている(例えば、引用文献1ないし4参照。)。
しかし、上記提案のダニ忌避剤に関する技術は、人体に対する安全性と屋内塵性ダニ類に対する忌避効果の両方の要求を十分に満足させ得るものとはいえなかった。
On the other hand, some techniques related to so-called mite repellents have been proposed that do not kill indoor dust mites but keep them close to people and patients (see, for example, cited references 1 to 4). .
However, the technique related to the proposed tick repellent could not sufficiently satisfy both the requirements for safety to the human body and the repellent effect for indoor dust mites.

特開平03−264504号公報Japanese Patent Laid-Open No. 03-264504 特開平06−016515号公報Japanese Patent Laid-Open No. 06-016515 特開2001−031508号公報JP 2001-031508 A 特開2006−001864号公報JP 2006-001864 A

本発明は、少ないダニ忌避成分の使用量においても屋内塵性ダニ類に対する高い忌避効果を奏し得、それにより、人体に対する高い安全性と屋内塵性ダニ類に対する高い忌避効果の両方の要求を十分に満足させ得る屋内塵性ダニ類を忌避させる方法を提供することを課題とする。   The present invention can exert a high repellent effect on indoor dust mites even with a small amount of mite repellent component used, thereby sufficiently satisfying the requirements of both high safety for human bodies and high repellent effect on indoor dust mites. It is an object of the present invention to provide a method for repelling indoor dust mites that can satisfy the above conditions.

本発明者等は、上記課題を解決するために鋭意検討した結果、ダニ忌避成分と溶剤とを含む原液並びに噴射剤を、それらの充填容器より屋内塵性ダニ類の棲息する又は棲息するおそれがある場所の上方の空間に向けて噴霧し、そして該噴霧粒子が沈降し前記場所に付着させて屋内塵性ダニ類を忌避させる際、前記噴霧を、特定の難揮発性化合物を含む溶液の一定量の噴霧とし、一ショット当たりの容量を特定の範囲とし且つ前記原液と噴射剤の
比率を一定の範囲とすることにより、少ないダニ忌避成分の使用量においても屋内塵性ダニ類に対する高い忌避効果を奏し得ることを見出し、本発明を完成させた。
As a result of intensive studies to solve the above-mentioned problems, the present inventors have a risk of inhaling or inhaling stock solutions and propellants containing a tick repellent component and a solvent from their filling containers. When spraying toward a space above a place and the spray particles settle and adhere to the place to repel indoor dust mites, the spray is a constant solution of a specific refractory compound. High spraying effect on indoor dust mites even when using a small amount of mite repellent components, with a certain amount of spray, a specific volume per shot, and a constant ratio of the stock solution and propellant The present invention has been completed.

従って、本発明は、
(1)ダニ忌避成分と溶剤とを含む原液並びに噴射剤を、それらの充填容器より屋内塵性ダニ類の棲息する又は棲息するおそれがある場所の上方の空間に向けて噴霧し、そして該噴霧粒子が沈降し前記場所に付着することにより、前記屋内塵性ダニ類を忌避させる方法であって、
前記ダニ忌避成分は、難揮発性化合物であり、前記噴霧の一ショット当たりの容量は、0.35ないし0.9mLであり、前記原液と前記噴射剤の容量比(原液/噴射剤(v/v))は、20〜50/50〜80であるところの方法、
(2)前記噴霧は、噴射距離20cmにおける噴射力が4.5ないし8.0g・fである条件でなされる前記(1)記載の方法、
(3)前記噴霧粒子は、粒径10ないし50μmの粒子が全体の60%以上を占める前記(1)又は(2)記載の方法、
(4)前記噴霧粒子全体のうち30ないし80%の噴霧粒子が前記噴霧後1時間以内に前記場所に付着する前記(1)ないし(3)の何れか1つに記載の方法、
(5)前記難揮発性化合物が、二塩基酸エステルである前記(1)ないし(4)の何れか1つに記載の方法、
(6)前記二塩基酸エステルが、セバシン酸ジブチルである前記(5)記載の方法、
に関するものである。
Therefore, the present invention
(1) A stock solution containing a tick repellent component and a solvent and a propellant are sprayed from the filled container toward a space above a place where indoor dust mites inhabit or may inhale, and the spray A method of repelling the indoor dust mites by allowing particles to settle and adhere to the place,
The mite repellent component is a hardly volatile compound, and the volume per shot of the spray is 0.35 to 0.9 mL, and the volume ratio of the stock solution to the propellant (stock solution / propellant (v / v)) is a method of 20-50 / 50-80,
(2) The method according to (1), wherein the spraying is performed under a condition that an injection force at an injection distance of 20 cm is 4.5 to 8.0 g · f,
(3) The method according to (1) or (2), wherein the sprayed particles comprise particles having a particle size of 10 to 50 μm occupying 60% or more of the whole.
(4) The method according to any one of (1) to (3), wherein 30 to 80% of the spray particles as a whole adhere to the place within 1 hour after the spraying,
(5) The method according to any one of (1) to (4), wherein the hardly volatile compound is a dibasic acid ester,
(6) The method according to (5), wherein the dibasic acid ester is dibutyl sebacate,
It is about.

本発明の屋内塵性ダニ類を忌避させる方法によれば、少ないダニ忌避成分の使用量においても屋内塵性ダニ類に対する高い忌避効果を発揮することができ、これにより、人体に対する高い安全性を確保しつつ、屋内塵性ダニ類に対する高い忌避効果を得ることができるため、極めて実用的である。   According to the method for repelling indoor dust mites according to the present invention, a high repellent effect on indoor dust mites can be exhibited even with a small amount of tick repellent components used, thereby providing high safety to the human body. It is extremely practical because it can secure a high repellent effect against indoor dust mites while ensuring.

本発明の屋内塵性ダニ類を忌避させる方法は、ダニ忌避成分と溶剤とを含む原液並びに噴射剤を、それらの充填容器より屋内塵性ダニ類の棲息する又は棲息するおそれがある場所の上方の空間に向けて噴霧し、そして該噴霧粒子が沈降し前記場所に付着することにより、前記屋内塵性ダニ類を忌避させる方法であって、
前記ダニ忌避成分は、難揮発性化合物であり、前記噴霧の一ショット当たりの容量は、0.35ないし0.9mLであり、前記原液と前記噴射剤の容量比(原液/噴射剤(v/v))は、20〜50/50〜80であるところの方法に関するものである。
本発明の方法は、ダニ忌避成分を含む噴霧粒子を屋内塵性ダニ類の棲息する又は棲息するおそれがある場所に付着させることにより生じる忌避効果、即ち、付着した噴霧粒子と屋内塵性ダニ類との接触により生じる忌避効果を利用するものであり、従って、使用されるダニ忌避成分は、残留性を維持するために難揮発性化合物である必要がある。
ここで難揮発性化合物とは、760mmHg(101.325kPa)における沸点が270℃以上となる化合物を意味する。
また、当然のことではあるが、本発明に使用されるダニ忌避成分は人体に対して高い安全性を有する化合物である必要がある。
The method for repelling indoor dust mites according to the present invention includes a stock solution containing a tick repellent component and a solvent, and a propellant above a place where indoor dust mites inhabit or inhalation from their filled containers. Spraying toward the space, and the spray particles settle and adhere to the place, thereby repelling the indoor dust mites,
The mite repellent component is a hardly volatile compound, and the volume per shot of the spray is 0.35 to 0.9 mL, and the volume ratio of the stock solution to the propellant (stock solution / propellant (v / v)) relates to the process of 20-50 / 50-80.
The method of the present invention has a repellent effect caused by attaching spray particles containing a tick repellent component to a place where indoor dust mites inhabit or may inhabit, that is, the attached spray particles and indoor dust mites. Therefore, the mite repellent component used needs to be a hardly volatile compound in order to maintain the persistence.
Here, the hardly volatile compound means a compound having a boiling point of 270 ° C. or higher at 760 mmHg (101.325 kPa).
Of course, the mite repellent component used in the present invention needs to be a compound having high safety to the human body.

上記観点から好ましいダニ忌避成分としては、二塩基酸エステルが挙げられ、該二塩基酸エステルの具体例としては、例えば、アジピン酸ジプロピル、アジピン酸ジブチル、セバシン酸ジエチル、セバシン酸ジプロピル、セバシン酸ジブチル、フタル酸ジメチル、フタル酸ジエチル、フタル酸ジブチル、フタル酸ジアミル、マレイン酸ジブチル、フマル酸ジブチル及びこれらの2種以上の混合物等が挙げられる。
好ましい二塩基酸エステルとしては、セバシン酸ジブチル等が挙げられる。
Preferred tick repellent components from the above viewpoint include dibasic acid esters, and specific examples of the dibasic acid ester include, for example, dipropyl adipate, dibutyl adipate, diethyl sebacate, dipropyl sebacate, dibutyl sebacate Dimethyl phthalate, diethyl phthalate, dibutyl phthalate, diamyl phthalate, dibutyl maleate, dibutyl fumarate, and mixtures of two or more thereof.
Preferred dibasic acid esters include dibutyl sebacate.

本発明に使用される溶剤としては、アルコール系の溶剤が好ましく、特に、炭素原子数2〜3の低級アルコールが好ましい。
炭素原子数2〜3の低級アルコールの具体例としては、エタノール及びイソプロパノール(IPA)等が挙げられるが、かかる低級アルコールは、速乾性で噴霧後速やかに揮発するので噴霧粒子を微細にしやすくする点で好ましい。
The solvent used in the present invention is preferably an alcohol solvent, and particularly preferably a lower alcohol having 2 to 3 carbon atoms.
Specific examples of the lower alcohol having 2 to 3 carbon atoms include ethanol and isopropanol (IPA). However, such a lower alcohol is quick-drying and quickly volatilizes after spraying, so that the spray particles are easily made finer. Is preferable.

本発明では、発明の趣旨に支障を来たさない限りにおいて、前記アルコール系の溶剤に加え、例えば、n−パラフィン、イソパラフィンなどの炭化水素系溶剤、炭素数3〜10のグリコールエーテル類、ケトン系溶剤、エステル系溶剤等を適宜添加可能である。   In the present invention, in addition to the alcohol solvent, for example, a hydrocarbon solvent such as n-paraffin and isoparaffin, a glycol ether having 3 to 10 carbon atoms, a ketone, as long as the gist of the invention is not hindered. A system solvent, an ester solvent or the like can be added as appropriate.

本発明に使用される原液は、前記ダニ忌避成分及び溶剤に加え、カビ類、菌類等を対象とした防カビ剤、抗菌剤や殺菌剤、あるいは、芳香剤、消臭剤、安定化剤、帯電防止剤、消泡剤、賦形剤等を適宜配合することもできる。
防カビ剤、抗菌剤や殺菌剤としては、ヒノキチオール、2−メルカプトベンゾチアゾール、2−(4−チアゾリル)ベンツイミダゾール、5−クロロ−2−メチル−4−イソチアゾリン−3−オン、トリホリン、3−メチル−4−イソプロピルフェノール、オルト−フェニルフェノール等を例示できる。
また、芳香剤としては、オレンジ油、レモン油、ラベンダー油、ペパーミント油、ユーカリ油、シトロネラ油、ライム油、ユズ油、ジャスミン油、檜油、緑茶精油、リモネン、α−ピネン、リナロール、ゲラニオール、フェニルエチルアルコール、アミルシンナミックアルデヒド、クミンアルデヒド、ベンジルアセテート等の芳香成分、「緑の香り」と呼ばれる青葉アルコールや青葉アルデヒド配合の香料成分等が挙げられるがこれらに限定されるものではない。
In addition to the above-mentioned mite repellent component and solvent, the stock solution used in the present invention is an antifungal agent, antibacterial agent and bactericidal agent for fungi, fungi, etc., or an aromatic, deodorant, stabilizer, An antistatic agent, an antifoaming agent, an excipient, and the like can be appropriately blended.
Antifungal agents, antibacterial agents and fungicides include hinokitiol, 2-mercaptobenzothiazole, 2- (4-thiazolyl) benzimidazole, 5-chloro-2-methyl-4-isothiazolin-3-one, triphorin, 3- Examples thereof include methyl-4-isopropylphenol and ortho-phenylphenol.
As the fragrance, orange oil, lemon oil, lavender oil, peppermint oil, eucalyptus oil, citronella oil, lime oil, yuzu oil, jasmine oil, coconut oil, green tea essential oil, limonene, α-pinene, linalool, geraniol, Examples include, but are not limited to, aromatic components such as phenylethyl alcohol, amylcinnamic aldehyde, cuminaldehyde, and benzyl acetate, green leaf alcohol called “green fragrance”, and flavor components containing green leaf aldehyde.

本発明に使用される原液中のダニ忌避成分の含有量は、一ショット当たりに噴霧される量が少量となるため、1.0〜70w/v%の範囲と、比較的高濃度にしておくのが好ましい。
前記ダニ忌避成分の含有量が1.0w/v%未満であると所望の効果が得られない場合があるため好ましくなく、前記ダニ忌避成分の含有量が70w/v%を超えるとエアゾール内容液の液性安定化の点で困難を伴う場合があるため好ましくない。
The content of the mite repellent component in the stock solution used in the present invention is a relatively high concentration in the range of 1.0 to 70 w / v% because the amount sprayed per shot is small. Is preferred.
If the content of the mite repellent component is less than 1.0 w / v%, the desired effect may not be obtained, which is not preferable. If the content of the mite repellent component exceeds 70 w / v%, the aerosol content liquid This is not preferable because it may be difficult in terms of liquid stability.

本発明に使用される噴射剤としては、液化石油ガス(LPG)やジメチルエーテル、及び窒素ガス、炭酸ガス、亜酸化窒素、圧縮空気等の圧縮ガスが挙げられ、そのうちの一種または二種以上を適宜採用することができるが、通常LPGを主体としたものが使いやすい。
本発明では、噴霧粒子の付着の対象となる床面や壁への粒子の付着率や存在密度等及びそれによる忌避効果の増減を考慮して、噴霧の一ショット当たりの容量を、0.35ないし0.9mLとし、原液/噴射剤比率(原液/噴射剤(v/v))を20〜50/50〜80とするものである。
前記一ショット当たりの容量が0.35mL未満では、十分な忌避効果が得られず、また、0.9mLを超える場合は、それ以上の忌避効果の向上が得られ難くなるため好ましくない。
また、原液/噴射剤比率(原液/噴射剤(v/v))が20/80より小さい、即ち、噴射剤の比率が多すぎると、原液と噴射剤からなる剤を一定量空間噴霧した際、噴霧粒子が必要以上に微細となり、床や壁への付着量が不足することになり好ましくなく、また、前記比率が50/50を超えると、噴霧粒子が大きくなり過ぎ、粒子の拡散性の点で幾分不利となり、結果として、屋内塵性ダニ類に対する忌避効果が不十分となるため好ましくない。
Examples of the propellant used in the present invention include liquefied petroleum gas (LPG) and dimethyl ether, and compressed gases such as nitrogen gas, carbon dioxide, nitrous oxide, and compressed air, and one or more of them are appropriately selected. Although it can be adopted, the one mainly composed of LPG is easy to use.
In the present invention, the volume per spray is 0.35 in consideration of the rate of particle adhesion to the floor or wall to which the spray particles adhere, the density of the particles, and the increase or decrease in the repelling effect. Or 0.9 mL, and the stock solution / propellant ratio (stock solution / propellant (v / v)) is 20-50 / 50-80.
If the volume per shot is less than 0.35 mL, a sufficient repellent effect cannot be obtained, and if it exceeds 0.9 mL, it is difficult to further improve the repellent effect.
In addition, when the stock solution / propellant ratio (stock solution / propellant (v / v)) is smaller than 20/80, that is, when the ratio of the propellant is too large, when a certain amount of the agent composed of the stock solution and the propellant is sprayed in space. The spray particles become unnecessarily fine, and the amount of adhesion to the floor or wall is insufficient, which is not preferable. When the ratio exceeds 50/50, the spray particles become too large, and the diffusibility of the particles As a result, the repellent effect on indoor dust mites is insufficient, which is not preferable.

原液と噴射剤からなる剤を噴霧する際の噴射力は、床や壁に付着する噴霧粒子が十分な量となるよう、噴射距離20cmにおける噴射力を4.5〜8.0g・fに設計するのが好ましい。
また、前記噴霧を行った際の、噴霧粒子は、粒子径10〜50μmの噴霧粒子が全体のうち60%以上を占めるようにするのが好ましく、また、全体の噴霧粒子のうちの30〜80%が噴霧1時間後までに床面や壁面に付着するようにするのが好ましい。
The spray force when spraying the agent composed of the undiluted solution and the propellant is designed to be 4.5 to 8.0 g · f at a spray distance of 20 cm so that the spray particles adhering to the floor or wall become a sufficient amount. Is preferred.
Moreover, it is preferable that spray particles having a particle diameter of 10 to 50 μm occupy 60% or more of the entire spray particles when the spray is performed, and 30 to 80 of the entire spray particles. % Is preferably adhered to the floor or wall by 1 hour after spraying.

本発明の方法は、ダニ忌避成分を含む剤の少量の噴霧で屋内塵性ダニ類に対して十分な忌避効果を奏し得るので、敢えて火気に対する危険性に留意する必要はないが、できる限り危険性を低減させる観点から水性化処方を採用することもできる。
この場合、水の量はエアゾール原液中、20〜70v/v%程度が適当であり、噴霧粒子の噴霧パターンに影響を与えない範囲で、可溶化助剤として若干量の非イオン系界面活性剤を添加してもよい。
前記非イオン系界面活性剤としては、例えば、ポリオキシエチレンアルキルエーテル類、ポリオキシエチレンアルキルフェニルエーテル類、ポリオキシエチレンポリオキシプロピレンアルキルエーテル類、ポリオキシエチレンアルキルアミノエーテル類などのエーテル類、ポリエチレングリコール脂肪酸エステル類、ポリオキシエチレンソルビタン脂肪酸エステル類、ポリオキシエチレングリセリン脂肪酸エステル類などの脂肪酸エステル類、ポリオキシエチレンスチレン化フェノール、脂肪酸のポリアルカロールアミド等が挙げられ、なかでも、エーテル類が適している。
The method of the present invention can exert a sufficient repellent effect on indoor dust mites by spraying a small amount of the agent containing the mite repellent component, so it is not necessary to pay attention to the risk to fire, but it is as dangerous as possible. From the viewpoint of reducing the properties, an aqueous formulation can also be adopted.
In this case, the amount of water is suitably about 20 to 70 v / v% in the aerosol stock solution, and a certain amount of nonionic surfactant is used as a solubilizing aid within a range that does not affect the spray pattern of the spray particles. May be added.
Examples of the nonionic surfactant include ethers such as polyoxyethylene alkyl ethers, polyoxyethylene alkyl phenyl ethers, polyoxyethylene polyoxypropylene alkyl ethers, polyoxyethylene alkylamino ethers, polyethylene Examples include fatty acid esters such as glycol fatty acid esters, polyoxyethylene sorbitan fatty acid esters, polyoxyethylene glycerin fatty acid esters, polyoxyethylene styrenated phenols, polyalkalol amides of fatty acids, among which ethers are Is suitable.

本発明の方法において、一定量の噴霧を行うために使用され得る噴霧装置としては、定量噴霧用エアゾールバルブを備えたエアゾール等が挙げられる。
尚、上記定量噴霧用エアゾールバルブとしては、一定量の噴霧を可能とするバルブであれば特に限定されるものではなく、既知の種々のバルブを採用することができる。
また、上記噴霧装置における噴口、ノズル、容器等の形状についても、その用途、使用目的等に応じて適宜選択することができる。
上記噴霧装置としては、例えば、上から押して噴霧するボタンと斜め上方向きのノズルを備えた卓上タイプとしたり、小型容器の携帯用として設計することができる。
In the method of the present invention, examples of the spray device that can be used to perform a certain amount of spray include an aerosol equipped with an aerosol valve for quantitative spraying.
The aerosol valve for quantitative spraying is not particularly limited as long as it is a valve that enables a certain amount of spraying, and various known valves can be employed.
In addition, the shape of the nozzle, nozzle, container, etc. in the spraying device can be appropriately selected according to its use, purpose of use, and the like.
The spraying device can be, for example, a desktop type equipped with a button for spraying by pressing from above and an obliquely upward nozzle, or designed for carrying a small container.

本発明の屋内塵性ダニ類を忌避させる方法は、上記のようにして得られた噴霧装置により、屋内で一定量、即ち、一ショット当たり空中に向けて0.35〜0.9mLを、1回もしくは複数回噴霧させるが、気中に噴霧されるダニ忌避成分量は、0.5〜50mg/m3程度が適当である。
本発明の屋内塵性ダニ類を忌避させる方法における、噴霧処理の頻度としては、基本的に1〜2日に1度施用すれば、屋内塵性ダニ類に対して数日間忌避効果を確保できるものである。
The method for repelling the indoor dust mites of the present invention uses a spraying device obtained as described above to give a fixed amount indoors, that is, 0.35 to 0.9 mL per shot in the air. The amount of the mite repellent component sprayed in the air is appropriate to be about 0.5 to 50 mg / m 3 .
In the method of repelling indoor dust mites according to the present invention, as the frequency of spraying treatment, if applied basically once or twice a day, repelling effects can be secured for indoor dust mites for several days. Is.

本発明の忌避方法の対象となる屋内塵性ダニ類としては、ケナガコナダニ、コナヒョウヒダニ、ヤケヒョウヒダニ、ツメダニ等が挙げられるが、これらのダニ類に限定されるものではない。   Examples of the indoor dust mites that are targets of the repellent method of the present invention include kenagakonadani, kona leopard mite, jade leopard mite, claw mite, and the like, but are not limited to these mites.

つぎに具体的実施例ならびに試験例に基づいて、本発明の害虫、ダニ防除方法を更に詳細に説明するが、本発明はこれらに限定されるものではない。
実施例1
エタノールにセバシン酸ジブチルを溶解して、セバシン酸ジブチルの含有量が67w/vとなるエアゾール原液を調製した。このエアゾール原液9mLと液化プロパンガス(LPG)21mL[エアゾール原液/噴射剤比率:30/70(容量比)]を定量噴霧用エ
アゾールバルブ付きエアゾール容器に加圧充填して、本発明で用いるダニ忌避用エアゾールを得た。
このエアゾールの噴射距離20cmにおける噴射力は6.4g・fで、10〜50μmの噴霧粒子が全体の80%を占めた。
ほぼ密閉した6畳の部屋中央で、前記エアゾールを1ショット当り0.4mLずつ、やや斜め上方4隅に向けて4ショット噴霧した。このエアゾールは、全体の噴霧粒子のうちの65%が噴霧処理1時間後までに床面もしくは壁面に付着し、数日間、屋内塵性ダニ類を寄せ付けず、非常に実用性の高いものであった。なお、このエアゾールは、一度に1.6mL(0.4mL×4)使用するとして、約20回分有効であった。
Next, the pest and mite control method of the present invention will be described in more detail based on specific examples and test examples, but the present invention is not limited to these.
Example 1
Dibutyl sebacate was dissolved in ethanol to prepare an aerosol stock solution having a dibutyl sebacate content of 67 w / v. The aerosol stock solution 9 mL and liquefied propane gas (LPG) 21 mL [aerosol stock solution / propellant ratio: 30/70 (volume ratio)] were pressure-filled into an aerosol container with an aerosol valve for quantitative spraying, and used in the present invention. An aerosol was obtained.
The spray force of this aerosol at a spray distance of 20 cm was 6.4 g · f, and spray particles of 10 to 50 μm accounted for 80% of the total.
In the center of a nearly sealed 6 tatami room, the aerosol was sprayed by 4 shots at a rate of 0.4 mL per shot slightly toward the upper four corners. This aerosol is highly practical because 65% of the total spray particles adhere to the floor or wall surface by 1 hour after the spraying treatment, and it does not attract indoor dust mites for several days. It was. This aerosol was effective for about 20 times when 1.6 mL (0.4 mL × 4) was used at a time.

実施例2
実施例1に準じて表1に示す種々のダニ忌避用エアゾールを調製し、噴射距離20cmにおける噴射力を6.1g・fとして下記に示す試験を行って、屋内塵性ダニ類に対する忌避効果を評価した。試験結果を纏めて表2に示す。
(1)屋内塵性ダニ類に対する忌避効果
直径9cm、高さ6cmの腰高シャーレを閉めきった25m3の部屋の隅に設置し、腰
高シャーレ内に直径約4cmの綿布を置き、部屋の中央で、供試エアゾールを0.4mLずつ、やや斜め上方4隅に向けて4ショット噴霧した。
供試エアゾール噴霧24時間後にこの綿布を取り出した。これを直径4cmのシャーレにはめ込み、その中央部に誘引用培地50mgを置いた。別に、直径9cmのシャーレに供試コナヒョウヒダニ、又はケナガコナダニを培地とともに約10000匹放ち、この中央部に先に用意した直径4cmのシャーレを置いた。
同様に、処理しない綿布を用いて無処理区とした。24時間後に綿布上に侵入したダニ数を計数し、次式に従って忌避率を算出した。

忌避率(%)=[無処理区の侵入ダニ数−処理区の侵入ダニ数]/無処理区の侵入ダニ数×100

(2)噴霧粒子の床面及び壁面付着量
25m3の部屋の床面及び壁面の数ケ所に20×20cmのガラス板を置き、噴霧1時
間後に全てのガラス板を取り出し、付着した害虫防除成分をアセトンで洗い出してガスクロマトグラフィーにより分析した。得られた分析値を基に、噴霧1時間後までに床面もしくは壁面に付着したダニ忌避成分の、理論上の噴霧全体量に対する比率を求めた。
Example 2
According to Example 1, various mite repelling aerosols shown in Table 1 were prepared, and the following test was conducted with a spraying force at a spraying distance of 20 cm of 6.1 g · f, and the repelling effect on indoor dust mites was observed. evaluated. The test results are summarized in Table 2.
(1) repellency diameter 9cm against house dust mites, placed in a corner of the room height 6 cm 25 m 3 which completely closed reluctance petri dish, place the cotton fabric with a diameter of about 4cm in reluctance in the Petri dish, in the center of the room The test aerosol was sprayed for 4 shots at a rate of 0.4 mL each toward slightly upper four corners.
The cotton fabric was taken out after 24 hours of spraying the test aerosol. This was fitted into a petri dish having a diameter of 4 cm, and 50 mg of the reference medium was placed in the center. Separately, about 10,000 test leopard mites or mushroom mites were released together with the medium in a petri dish with a diameter of 9 cm, and the petri dish with a diameter of 4 cm previously prepared was placed in the center.
Similarly, a non-treated area was made using untreated cotton cloth. After 24 hours, the number of mites that had invaded the cotton cloth was counted, and the repelling rate was calculated according to the following formula.

Repelling rate (%) = [number of invading ticks in untreated area−number of invading ticks in treated area] / number of invading ticks in untreated area × 100

(2) Amount of spray particles adhering to the floor surface and wall surface Place a 20 x 20 cm glass plate at several places on the floor surface and wall surface of a 25 m 3 room, take out all the glass plates after 1 hour of spraying, and adhere to the pest control component. Was washed out with acetone and analyzed by gas chromatography. Based on the obtained analysis value, the ratio of the mite repellent component adhering to the floor or wall surface up to 1 hour after spraying to the theoretical total amount of spray was determined.

Figure 2011132196
Figure 2011132196

Figure 2011132196
Figure 2011132196

結果
ダニ忌避効果を有する難揮発性化合物を用い、エアゾールの噴霧における一ショット当たりの容量を、0.35ないし0.9mLとし、前記エアゾールにおける原液と噴射剤の容量比(原液/噴射剤(v/v))を、20〜50/50〜80とする、実施例1ないし10においては、何れも、ヒョウヒダニ及びケナガコナダニのような屋内塵性ダニ類に対して高い忌避活性を示した。
これに対し、比較例1のように、一ショット当たりの噴霧の容量を0.35mL未満の0.3mLとすると、ダニ忌避効果が不足し、また、比較例2のように、一ショット当たりの噴霧の容量を0.9mLを超える1.0mLとしても、ダニ忌避効果が低下したが、これは、噴霧粒子が大きくなり過ぎ、粒子の拡散性の点で幾分不利となり、結果として、屋内塵性ダニ類に対する忌避効果が不十分となったものと考えられる。
また、噴射剤の比率が20/80を超える10/90とする比較例3でもダニ忌避効果が低くなったが、これは、噴霧粒子が小さくなり過ぎ、綿布への付着量が不足したためと考えられ、また、噴射剤の比率が50/50未満の60/40とする比較例4も、ダニ忌避効果が低下したが、これは、比較例2と同様に、噴霧粒子が大きくなり過ぎたために、忌避効果が不十分となったものと考えられる。
Results Using a hardly volatile compound having a tick repellent effect, the volume per shot in aerosol spraying was 0.35 to 0.9 mL, and the volume ratio of the stock solution and propellant in the aerosol (stock solution / propellant (v In Examples 1 to 10 in which 20/50/80 was set to 20 to 50/50 to 80, all showed high repellent activity against indoor dust mites such as leopard mite and mushroom mite.
On the other hand, if the spray volume per shot is 0.3 mL, which is less than 0.35 mL, as in Comparative Example 1, the effect of mite repellent is insufficient, and, as in Comparative Example 2, per shot. Even when the spray volume was set to 1.0 mL exceeding 0.9 mL, the mite repellent effect was reduced, but this was caused by excessively large spray particles, which was somewhat disadvantageous in terms of particle diffusivity, and as a result, indoor dust It is considered that the repellent effect on sex mites was insufficient.
Moreover, the mite repellent effect was also low in Comparative Example 3 in which the ratio of the propellant was 10/90 exceeding 20/80, but this was considered because the spray particles became too small and the amount of adhesion to the cotton cloth was insufficient. In addition, the comparative example 4 in which the propellant ratio is less than 50/50 and 60/40 also has a reduced mite repellent effect because, like the comparative example 2, the spray particles become too large. It is thought that the repellent effect was insufficient.

本発明の屋内塵性ダニ類を忌避させる方法は、人体に対する高い安全性を確保しつつ、屋内塵性ダニ類に対する高い忌避効果を得ることができるため、極めて実用的である。   The method for repelling indoor dust mites of the present invention is extremely practical because it can obtain a high repellent effect on indoor dust mites while ensuring high safety to the human body.

Claims (6)

ダニ忌避成分と溶剤とを含む原液並びに噴射剤を、それらの充填容器より屋内塵性ダニ類の棲息する又は棲息するおそれがある場所の上方の空間に向けて噴霧し、そして該噴霧粒子が沈降し前記場所に付着することにより、前記屋内塵性ダニ類を忌避させる方法であって、
前記ダニ忌避成分は、難揮発性化合物であり、前記噴霧の一ショット当たりの容量は、0.35ないし0.9mLであり、前記原液と前記噴射剤の容量比(原液/噴射剤(v/v))は、20〜50/50〜80であるところの方法。
The stock solution containing the mite repellent component and the solvent and the propellant are sprayed from the filled container toward the space above the place where indoor dust mites inhabit or may inhale, and the spray particles settle. A method for repelling the indoor dust mites by adhering to the place,
The mite repellent component is a hardly volatile compound, and the volume per shot of the spray is 0.35 to 0.9 mL, and the volume ratio of the stock solution to the propellant (stock solution / propellant (v / v)) is a method of 20-50 / 50-80.
前記噴霧は、噴射距離20cmにおける噴射力が4.5ないし8.0g・fである条件でなされる請求項1記載の方法。 The method according to claim 1, wherein the spraying is performed under a condition that an injection force at an injection distance of 20 cm is 4.5 to 8.0 g · f. 前記噴霧粒子は、粒径10ないし50μmの粒子が全体の60%以上を占める請求項1又は2記載の方法。 The method according to claim 1 or 2, wherein the sprayed particles comprise 60% or more of particles having a particle size of 10 to 50 µm. 前記噴霧粒子全体のうち30ないし80%の噴霧粒子が前記噴霧後1時間以内に前記場所に付着する請求項1ないし3の何れか1項に記載の方法。 The method according to any one of claims 1 to 3, wherein 30 to 80% of the spray particles are attached to the place within 1 hour after the spraying. 前記難揮発性化合物が、二塩基酸エステルである請求項1ないし4の何れか1項に記載の方法。 The method according to any one of claims 1 to 4, wherein the hardly volatile compound is a dibasic acid ester. 前記二塩基酸エステルが、セバシン酸ジブチルである請求項5記載の方法。 6. The method of claim 5, wherein the dibasic acid ester is dibutyl sebacate.
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