JP5948010B2 - Chemical vaporizer to prevent cockroach invasion - Google Patents
Chemical vaporizer to prevent cockroach invasion Download PDFInfo
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本発明は、揮散性薬剤が担持された薬剤担持体から遠心力又はファンによる風力によって揮散性薬剤を空間に揮散させる駆動装置を備えたゴキブリ侵入防止用薬剤揮散装置に関するものである。 TECHNICAL FIELD The present invention relates to a chemical volatilization device for preventing invasion of cockroaches, which includes a driving device that volatilizes a volatile chemical into a space by centrifugal force or wind generated by a fan from a chemical carrier carrying a volatile chemical.
害虫、例えば蚊やブユなどを駆除するために、薬剤を閉鎖空間（室内や自動車の車内、アウトドアスポーツにおけるテント内など）全体に揮散、放出させる薬剤揮散方法として、熱エネルギーを利用した蚊取線香や電気蚊取マット、液体式電気蚊取(リキッド)が一般的であるが、常温でファン等の風力を利用して薬剤を揮散、放出させる方法も実用化されている。後者の方法は必ずしも交流電源を必要とせず、持ち運びが可能であることから有用であり、本発明者らも特開２００１−２４７４０６号公報（特許文献１）において、ビーズ状の薬剤含浸体を収納するカートリッジをモーターで回転させ、遠心力によって薬剤を効率的に揮散、放出させる薬剤揮散方法を開示した。
また、特開２００６−２５６５５号公報（特許文献２）では、前記ビーズ状の薬剤含浸体の替わりに、三次元方向にメッシュ状を形成している通気層の下側面又は上下両側面に、毛管現象によって薬剤液を保持できる程度の隙間を有する薬剤保持層を設けてなるシート状の薬剤担持体を用いた薬剤揮散装置を提案した。そして、特許文献１及び特許文献２のいずれのタイプにおいても、薬剤の実用的な揮散性能や殺虫効果に優れたものであった。
Mosquito coil that uses thermal energy as a chemical volatilization method that volatilizes and releases chemicals in closed spaces (such as indoors, cars, and outdoor sports tents) to control pests such as mosquitoes and flyfish. In general, an electric mosquito mat and a liquid electric mosquito trap (liquid) are generally used, but a method of volatilizing and releasing the drug using wind power such as a fan at room temperature has been put into practical use. The latter method is useful because it does not necessarily require an AC power source and can be carried. The present inventors also disclosed a bead-shaped drug impregnated body in JP-A-2001-247406 (Patent Document 1). The chemical volatilization method is disclosed in which the cartridge is rotated by a motor and the chemical is volatilized and released efficiently by centrifugal force.
In JP 2006-25655 A (Patent Document 2), instead of the bead-shaped drug-impregnated body, a capillary tube is formed on the lower surface or both upper and lower surfaces of the ventilation layer forming a mesh shape in a three-dimensional direction. A drug volatilization apparatus using a sheet-like drug carrier provided with a drug holding layer having a gap enough to hold a drug solution depending on the phenomenon has been proposed. And in any type of patent document 1 and patent document 2, it was excellent in the practical volatilization performance and insecticidal effect of a chemical | medical agent.
ところで、薬剤担持体にファンによる風を当てて薬剤を揮散させる薬剤揮散装置において、駆動時間と休止時間を交互に設定し、間欠的に薬剤を揮散させて、駆動電源の節約と揮散する薬剤の効率使用を図る試みも提案されている。例えば、特開平１１−３０８９５５号公報（特許文献３）には、洋服タンスやクローゼットのような収納空間で、送風期間よりも１０倍以上長い送風休止期間を設定した薬剤揮散装置を用いる衣料害虫防除方法が記載されている。
一方、特開２００１−２９２６８１号公報（特許文献４）は、居住空間の蚊等の防除に適用され、停止時間を駆動時間の９倍以下に設定したファン式害虫防除装置を開示する。また、特開２００６−２５７１０５号公報（特許文献５）においては、エムペントリンを含有するハニカム状の薬剤担持体を取り付けたファン型薬剤揮散装置につき、２４ｍ３の室内で１２時間断続運転を繰り返したところ、運転１２時間中のエムペントリン揮散量が１０〜２０ｍｇ／ｈで、エムペントリン気中濃度が１００〜２００μｇ／ｍ３であったことが記載されている（この場合、運転休止１２時間中にエムペントリン気中濃度は殆どゼロ近くまで低下するものと推測される）。そして、２時間送風、１０分間休止の条件であれば、連続運転に匹敵するエムペントリン気中濃度（１００〜２００μｇ／ｍ３）が得られるとしている。
By the way, in the drug volatilization device that volatilizes the drug by blowing the air with the fan on the drug carrier, the driving time and the rest time are alternately set, the drug is volatilized intermittently, and the driving power source is saved and volatilized. Attempts to make efficient use have also been proposed. For example, Japanese Patent Application Laid-Open No. 11-308955 (Patent Document 3) describes control of clothing pests using a chemical volatilization device in which a ventilation suspension period is set to 10 times or more longer than the ventilation period in a storage space such as a clothes chiffon or closet. A method is described.
On the other hand, Japanese Patent Application Laid-Open No. 2001-292681 (Patent Document 4) discloses a fan-type pest control apparatus that is applied to control mosquitoes and the like in a living space and has a stop time set to 9 times or less of a drive time. In JP 2006-257105 A (Patent Document 5), a fan-type drug volatilization apparatus equipped with a honeycomb-shaped drug carrier containing empentrin is repeatedly intermittently operated in a room of 24 m 3 for 12 hours. In addition, it is described that the empentrin volatilization amount during the operation 12 hours was 10 to 20 mg / h and the empentrin concentration in the air was 100 to 200 μg / m 3 (in this case, the empentrin in the air during the operation stop 12 hours) It is estimated that the concentration drops to almost zero). And if it is the conditions of 2-hour ventilation and 10-minute rest, it is supposed that the empentrin concentration in air | atmosphere (100-200 microgram / m < 3 >) equivalent to a continuous driving | running will be obtained.
しかしながら、特許文献４又は特許文献５の薬剤揮散装置は、主として蚊等の飛翔害虫の駆除（ノックダウン、致死）を目的としたもので、人が居る空間で高い有効薬剤濃度を８〜１２時間単位で保持する必要がある。この場合、有効薬剤濃度を高濃度に設定すれば、効力的には問題ないが安全性の面で支障を生じる恐れが避けられない。
かかる状況下で、ゴキブリのような匍匐害虫を駆除できなくても、部屋に侵入するのを長期間にわたり継続して防止できれば良いといったタイプの製剤を求めるニーズも高まっている。
後者のタイプの製剤、即ち、遠心力やファン等の風力を利用して薬剤を空間に揮散させるゴキブリ侵入防止用薬剤揮散装置を開発するにあたっては、以下の条件、（１）駆除用途と較べると低濃度であっても、適用される空間においてゴキブリ等を寄せ付けない有効薬剤濃度を長期間、例えば数週間にわたり安定して保持できること、（２）薬剤気中濃度は人やペット等に対して安全性の問題を生じないこと、（３）駆動電源の節約のため、駆動時間に較べて休止時間の長い間欠駆動を実現できること、が要請される。
このように、ゴキブリ侵入防止用薬剤揮散装置は、特許文献３ないし特許文献５に記載された薬剤揮散装置とは製品設計や仕様が全く異なるためその技術内容は参考とならず、未だ製品化に至っていないのが現状である。
However, the chemical volatilization device of Patent Document 4 or Patent Document 5 is mainly for the purpose of extermination (knockdown, lethality) of flying pests such as mosquitoes, and has a high effective drug concentration in a space where people are present for 8 to 12 hours. Must be held in units. In this case, if the effective drug concentration is set to a high concentration, there is no problem in terms of safety, but there is an unavoidable possibility of causing trouble in terms of safety.
Under such circumstances, there is an increasing need for a type of preparation that only needs to be able to continuously prevent entry into a room for a long period of time even if it is not possible to exterminate insect pests such as cockroaches.
In developing the latter type of formulation, that is, the chemical volatilization device for preventing invasion of cockroaches that volatilizes the chemical into the space using centrifugal force or wind power such as a fan, compared with the following conditions, (1) Even if the concentration is low, the effective drug concentration that keeps cockroaches away in the applied space can be stably maintained for a long period of time, for example, several weeks. (2) The concentration in the air is safe for humans and pets. (3) In order to save driving power, it is required to realize intermittent driving having a longer pause time than the driving time.
Thus, the chemical volatilization device for preventing intrusion of cockroaches is completely different from the chemical volatilization device described in Patent Document 3 to Patent Document 5, so its technical content is not a reference, and it has not yet been commercialized. The current situation is not reached.
本発明は、ゴキブリに代表される匍匐害虫の部屋等への侵入防止を目指した薬剤揮散装置であり、長期間にわたり揮散性薬剤を間欠的に揮散させるにも拘わらず、その周囲の空間において比較的低濃度な有効薬剤濃度を使用期間中安定して保持しゴキブリ等のこの空間への侵入を防止できると共に、人やペットに対する安全性に優れ、しかも駆動電源の節約の点でも有利なゴキブリ侵入防止用薬剤揮散装置を提供することを目的とする。 The present invention is a chemical volatilization device that aims to prevent the entry of insect pests such as cockroaches into a room. It keeps the active drug concentration at a low level stable during the period of use and prevents the invasion of cockroaches etc. into this space, and it is excellent in safety for people and pets, and also advantageous in terms of saving driving power. It aims at providing the chemical volatilization device for prevention.
本発明は、以下の構成が上記目的を達成するために優れた効果を奏することを見出したも
のである。
（１）エムペントリンが担持された薬剤担持体と、前記薬剤担持体を回転させて、遠心力によって前記揮散性薬剤を空間に揮散させる駆動装置と、を備え、前記駆動装置を駆動時間と停止時間の比が１：８〜１：１４でかつ１回あたりの駆動時間が１〜２分の条件で間欠的に駆動させ、該空間中における前記揮散性薬剤の有効薬剤濃度を使用開始から使用終了時点まで安定に保持して、ゴキブリのこの空間への侵入を防止するようになしたゴキブリ侵入防止用薬剤揮散装置。
The present invention has been found that the following constitution has an excellent effect for achieving the above-mentioned object.
(1) empenthrin and drug carrier which is carried, the drug carrier was allowed to rotate, and a driving device for volatilizing into the space the volatile agent by centrifugal force, the driving apparatus driving and stop times The ratio is 1: 8 to 1:14 and the driving time per one time is intermittently driven for 1 to 2 minutes, and the effective drug concentration of the volatile drug in the space is used from the start to the end of use. A chemical volatilization device for preventing the invasion of cockroaches, which is kept stable until the point in time and prevents the invasion of cockroaches into this space .
本発明のゴキブリ侵入防止用薬剤揮散装置は、長期間にわたり揮散性薬剤を間欠的に揮散させるにも拘わらず、その周囲の空間において比較的低濃度な有効薬剤濃度を使用期間中安定して保持しゴキブリ等のこの空間への侵入を防止できると共に、人やペットに対する安全性に優れ、しかも駆動電源の節約の点でも有利なので、その実用性は極めて高い。 The drug volatilization device for preventing intrusion of cockroaches of the present invention stably maintains a relatively low concentration of effective drug during the period of use, even though the volatilizing drug is volatilized intermittently over a long period of time. In addition, it can prevent the invasion of cockroaches and the like, is excellent in safety for people and pets, and is advantageous in terms of saving driving power, so its practicality is extremely high.
本発明で用いられる揮散性薬剤としては、揮散性に優れた忌避成分、抗菌成分、防虫香料等があげられる。忌避成分としては、エムペントリンや一般式（Ｉ）
一般式（Ｉ）で表される化合物の具体例としては、２，３，５，６−テトラフルオロベンジル−２，２−ジメチル−３−（２，２−ジクロロビニル）シクロプロパンカルボキシレート（以後、トランスフルトリンと称す）、４−メチル−２，３，５，６−テトラフルオロベンジル−２，２−ジメチル−３−（１−プロペニル）シクロプロパンカルボキシレート（以後、プロフルトリンと称す）、４−メトキシメチル−２，３，５，６−テトラフルオロベンジル−２，２−ジメチル−３−（１−プロペニル）シクロプロパンカルボキシレート（以後、メトフルトリンと称す）、２，３，５，６−テトラフルオロベンジル−クリサンテマート（以後、化合物Ａと称す）、２，３，５，６−テトラフルオロベンジル−２，２−ジメチル−３−（１−プロペニル）シクロプロパンカルボキシレート（以後、化合物Ｂと称す）、４−メチル−２，３，５，６−テトラフルオロベンジル−クリサンテマート（以後、化合物Ｃと称す）、４−メチル−２，３，５，６−テトラフルオロベンジル−２，２−ジメチル−３−（２，２−ジフルオロビニル）シクロプロパンカルボキシレート（以後、化合物Ｄと称す）、４−メトキシメチル−２，３，５，６−テトラフルオロベンジル−クリサンテマート（以後、化合物Ｅと称す）、２，３，４，５，６−ペンタフルオロベンジル−２，２−ジメチル−３−（２−クロロ−２−トリフルオロメチルビニル）シクロプロパンカルボキシレート（以後、化合物Ｆと称す）、４−プロパルギル−２，３，５，６−テトラフルオロベンジル−２，２−ジメチル−３−（１−プロペニル）シクロプロパンカルボキシレート（以後、化合物Ｇと称す）、４−メチル−２，３，５，６−テトラフルオロベンジル−２，２−ジメチル−３−ビニルシクロプロパンカルボキシレート（以後、化合物Ｈと称す）、２，３，５，６−テトラフルオロベンジル−２，２，３，３−テトラメチルシクロプロパンカルボキシレート（以後、化合物Ｉと称す）、又は４−メトキシメチル−２，３，５，６−テトラフルオロベンジル−２，２，３，３−テトラメチルシクロプロパンカルボキシレート（以後、化合物Ｊと称す）をあげることができる。
上記化合物のなかでは、エムペントリンが性能的に好ましい。
Specific examples of the compound represented by the general formula (I) include 2,3,5,6-tetrafluorobenzyl-2,2-dimethyl-3- (2,2-dichlorovinyl) cyclopropanecarboxylate (hereinafter, 4-methyl-2,3,5,6-tetrafluorobenzyl-2,2-dimethyl-3- (1-propenyl) cyclopropanecarboxylate (hereinafter referred to as profluthrin), 4 -Methoxymethyl-2,3,5,6-tetrafluorobenzyl-2,2-dimethyl-3- (1-propenyl) cyclopropanecarboxylate (hereinafter referred to as metfurthrin), 2,3,5,6-tetra Fluorobenzyl-chrysanthemate (hereinafter referred to as Compound A), 2,3,5,6-tetrafluorobenzyl-2,2-dimethyl-3- (1- (Lopenyl) cyclopropanecarboxylate (hereinafter referred to as Compound B), 4-methyl-2,3,5,6-tetrafluorobenzyl-chrysantemate (hereinafter referred to as Compound C), 4-methyl-2,3 , 5,6-tetrafluorobenzyl-2,2-dimethyl-3- (2,2-difluorovinyl) cyclopropanecarboxylate (hereinafter referred to as Compound D), 4-methoxymethyl-2,3,5,6 -Tetrafluorobenzyl-chrysanthemate (hereinafter referred to as compound E), 2,3,4,5,6-pentafluorobenzyl-2,2-dimethyl-3- (2-chloro-2-trifluoromethylvinyl) ) Cyclopropanecarboxylate (hereinafter referred to as Compound F), 4-propargyl-2,3,5,6-tetrafluorobenzyl-2,2-dimethyl-3 (1-propenyl) cyclopropanecarboxylate (hereinafter referred to as Compound G), 4-methyl-2,3,5,6-tetrafluorobenzyl-2,2-dimethyl-3-vinylcyclopropanecarboxylate (hereinafter referred to as Compound G) Compound H), 2,3,5,6-tetrafluorobenzyl-2,2,3,3-tetramethylcyclopropanecarboxylate (hereinafter referred to as Compound I), or 4-methoxymethyl-2,3 , 5,6-tetrafluorobenzyl-2,2,3,3-tetramethylcyclopropanecarboxylate (hereinafter referred to as Compound J).
Among the above compounds, empentrin is preferable in terms of performance.
他の揮散性薬剤としては、例えば、ディート、ｐ−メンタン−３，８−ジオール、ジメチルフタレート、２−エチル−１，３−ヘキサンジオール等の忌避成分、ヒノキチオール、テトラヒドロリナロール、オイゲノール、アリルイソチオシアネート等の抗菌成分、シトロネラ油、オレンジ油、レモン油、ライム油、ユズ油、ラベンダー油、ペパーミント油、ユーカリ油、ジャスミン油、檜油、緑茶精油、リモネン、α−ピネン、シトロネラール、テルピネオール、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防虫香料等があげられる。
また、前記成分に加え、殺虫成分、消臭成分、芳香成分、例えば、「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などを適宜配合しても構わない。
Examples of other volatile chemicals include repellent components such as diet, p-menthane-3,8-diol, dimethyl phthalate, 2-ethyl-1,3-hexanediol, hinokitiol, tetrahydrolinalol, eugenol, allyl isothiocyanate. Antibacterial ingredients such as citronella oil, orange oil, lemon oil, lime oil, yuzu oil, lavender oil, peppermint oil, eucalyptus oil, jasmine oil, coconut oil, green tea essential oil, limonene, α-pinene, citronellal, terpineol, linalool, Insect repellents such as geraniol, phenylethyl alcohol, amylcinnamic aldehyde, cuminaldehyde, and benzyl acetate.
In addition to the above components, insecticidal components, deodorant components, aromatic components, for example, green leaf alcohol called “green fragrance” or a flavor component containing green leaf aldehyde may be appropriately blended.
本発明のゴキブリ侵入防止用薬剤揮散装置は、長期間にわたり揮散性薬剤を間欠的に揮散させるにも拘わらず、その周囲の空間において比較的低濃度な有効薬剤濃度を使用期間中安定して保持し、ゴキブリ等のこの空間への侵入を防止できるようになしたことに特徴を有する。
ところで、従来の間欠式薬剤揮散装置としては、特開平１１−３０８９５５号公報（特許文献３）に開示されている如く、洋服タンスやクローゼットのような収納空間で、送風期間よりも１０倍以上長い送風休止期間を設定した薬剤揮散装置がある。特許文献３は、１２時間おきに５分間運転する具体例（駆動時間と停止時間の比が１：１４４）を示しているが、これは洋服タンスやクローゼットのような密閉性の高い小空間では、一旦小空間の薬剤濃度を高めておけば停止時間を長くしても薬剤濃度の低下が小さいためである。
The drug volatilization device for preventing intrusion of cockroaches of the present invention stably maintains a relatively low concentration of effective drug during the period of use, even though the volatilizing drug is volatilized intermittently over a long period of time. In addition, the present invention is characterized in that cockroaches and the like can be prevented from entering this space.
By the way, as a conventional intermittent medicine volatilization apparatus, as disclosed in Japanese Patent Application Laid-Open No. 11-308955 (Patent Document 3), in a storage space such as a clothes chiffon or closet, it is 10 times longer than the blowing period. There is a chemical volatilization device that sets the air suspension period. Patent Document 3 shows a specific example of driving for 5 minutes every 12 hours (ratio of drive time and stop time is 1: 144), but this is not possible in a small space with high airtightness such as clothes chase and closet. This is because once the drug concentration in the small space is increased, the decrease in the drug concentration is small even if the stop time is lengthened.
一方、特開２００１−２９２６８１号公報（特許文献４）に記載されているように、居住空間の蚊等の防除に適用され、停止時間を駆動時間の９倍以下に設定したファン式害虫防除装置等も知られている。特許文献４の場合、２５ｍ３程度の居住空間で蚊駆除用に使用するため、停止時間を駆動時間の９倍以下に設定して有効薬剤濃度の低下を補うことを発明の趣旨とする。そして、明細書の段落［００１７］において、「・・・１時間駆動し２時間停止したり、または１０分駆動し３０分停止したり、３０秒駆動し２０秒停止したりしても良い。」と記載しているように、駆動時間が１０分以内の場合は、有効薬剤濃度を確保するうえで、駆動時間と停止時間の比を更に小さく（１：３以下）設定する必要性を示している。 On the other hand, as described in Japanese Patent Laid-Open No. 2001-292681 (Patent Document 4), a fan-type pest control apparatus that is applied to control mosquitoes in a living space and has a stop time set to 9 times or less of a drive time. Etc. are also known. In the case of Patent Document 4, since it is used for mosquito control in a living space of about 25 m 3 , the purpose of the invention is to set the stop time to 9 times or less of the drive time to compensate for the decrease in the effective drug concentration. Then, in paragraph [0017] of the specification, “... Drive for 1 hour and stop for 2 hours, drive for 10 minutes and stop for 30 minutes, or drive for 30 seconds and stop for 20 seconds. "When the driving time is less than 10 minutes, it is necessary to set the ratio of the driving time and the stop time to be smaller (less than 1: 3) in order to secure the effective drug concentration. ing.
更に、特開２００６−２５７１０５号公報（特許文献５）においては、エムペントリンを含有するハニカム状の薬剤担持体を取り付けたファン型薬剤揮散装置につき、２４ｍ３の室内で１２時間断続運転を繰り返したところ、運転１２時間中のエムペントリン揮散量が１０〜２０ｍｇ／ｈで、エムペントリン気中濃度が１００〜２００μｇ／ｍ３であったことが記載されている。そして、２時間送風、１０分間休止の条件であれば、連続運転に匹敵するエムペントリン気中濃度（１００〜２００μｇ／ｍ３）が得られるとしている。即ち、蚊等の駆除効果を目的としたエムペントリン薬剤揮散装置の場合、有効薬剤濃度が１００〜２００μｇ／ｍ３レベルであって、間欠駆動を採用するとしても、休止時間を送風時間に較べて短くしなければ実現できないとの認識がこれまで一般的であった。 Further, in Japanese Patent Application Laid-Open No. 2006-257105 (Patent Document 5), a fan-type drug volatilization apparatus equipped with a honeycomb-shaped drug carrier containing empentrin was repeatedly intermittently operated in a room of 24 m 3 for 12 hours. In addition, it is described that the amount of empentrin volatilization during operation for 12 hours was 10 to 20 mg / h and the concentration of empentrin in air was 100 to 200 μg / m 3 . And if it is the conditions of 2-hour ventilation and 10-minute rest, it is supposed that the empentrin concentration in air | atmosphere (100-200 microgram / m < 3 >) equivalent to a continuous driving | running will be obtained. That is, in the case of the empentrin drug volatilization device for the purpose of controlling mosquitoes and the like, even if the effective drug concentration is 100 to 200 μg / m 3 level and intermittent driving is adopted, the pause time is shorter than the blowing time. Until now, it has been generally recognized that this would not be possible.
しかるに、本発明者らは、蚊駆除用とは別に、ゴキブリ等の部屋への侵入を防止する方法を鋭意検討した結果、特定の駆動時間／停止時間の比と、１回あたりの特定の駆動時間を設定したうえで間欠的に駆動させれば、該空間中における揮散性薬剤の有効薬剤濃度を使用開始から使用終了時点まで安定に保持し、ゴキブリのこの空間への侵入を防止できうることを見出した。即ち、駆動時間と停止時間の比が１：５〜１：３０、好ましくは１：１０〜１：２０で、かつ１回あたりの駆動時間が０．５〜５分の条件を採用することによって、ゴキブリ侵入防止のための有効薬剤濃度を長期間にわたり確保できることを認め、本発明を完成したものである。
なお、揮散性薬剤の有効薬剤濃度は使用する揮散性薬剤の種類によって異なるので、必要ならば設置するゴキブリ侵入防止用薬剤揮散装置の個数を増減させて適宜調整すればよい。かかるゴキブリ侵入防止用薬剤揮散装置の性能や仕様は、実際に試験を実施してみなければ知得しえず、特許文献３ないし特許文献５のような従来技術の単なる設計変更に当たらないことは明らかである。
However, as a result of intensive studies on a method for preventing the entry of cockroaches and the like into a room separately from mosquito control, the present inventors have determined a specific drive time / stop time ratio and a specific drive per time. If it is driven intermittently after setting the time, the effective drug concentration of the volatile drug in the space can be stably maintained from the start of use to the end of use, and cockroaches can be prevented from entering this space. I found. That is, by adopting the condition that the ratio of the driving time to the stopping time is 1: 5 to 1:30, preferably 1:10 to 1:20, and the driving time per time is 0.5 to 5 minutes. The present invention has been completed by recognizing that an effective drug concentration for preventing the invasion of cockroaches can be secured over a long period of time.
In addition, since the effective chemical | medical agent density | concentration of a volatile chemical | medical agent changes with the kind of volatile chemical | medical agent to be used, what is necessary is just to adjust suitably by increasing / decreasing the number of the chemical | medical agent volatilization prevention apparatuses which install the cockroach if needed. The performance and specifications of such a cockroach invasion prevention chemical volatilization device cannot be obtained unless the test is actually carried out, and do not correspond to a mere design change of the prior art such as Patent Documents 3 to 5. Is clear.
本発明のゴキブリ侵入防止用薬剤揮散装置に適用される薬剤担持体の素材としては、プラスチック製繊維、天然繊維、無機質製繊維の織布又は不織布や、パルプ、レーヨン、ビスコース等のセルロース基材、無機質粉などがあげられる。なかでも、プラスチック製繊維、例えば、ポリエステル（ポリエチレンテレフタレート、ポリブチレンテレフタレートなど）、ポリアミド、アクリル繊維、ポリエチレン、ポリプロピレン等を用いて多孔質シート、ネット、立体構造体などに形成したり、セルロース基材をシート状、ハニカム状、あるいはビーズ状となして、揮散性薬剤が担持される担体を構成するのが好ましい。 The material of the drug carrier applied to the chemical volatilization device for preventing invasion of cockroaches of the present invention includes plastic fibers, natural fibers, woven or non-woven fabrics of inorganic fibers, and cellulose base materials such as pulp, rayon, viscose, etc. And inorganic powders. Among them, plastic fibers such as polyester (polyethylene terephthalate, polybutylene terephthalate, etc.), polyamide, acrylic fiber, polyethylene, polypropylene, etc. can be used to form porous sheets, nets, three-dimensional structures, etc. It is preferable to form a carrier on which a volatile drug is supported by forming a sheet, honeycomb, or bead.
本発明では、かかる担体全体に揮散性薬剤を１００ｍｇ〜２ｇ程度担持させるが、必要ならば、揮散性薬剤と共に、溶剤、安定剤、揮散調整剤、界面活性剤、着色剤などを適宜配合することができる。溶剤としては、ｎ−パラフィン、イソパラフィンなどの炭化水素系溶剤、プロピレングリコール、１，３−ブチレングリコール、ジプロピレングリコールなどのグリコール系溶剤、アルコール系溶剤、ケトン系溶剤、エステル系溶剤などがあげられ、安定剤としては、ＢＨＴ、ＢＨＡなどを例示できるがこれらに限定されない。ステアリン酸ブチルやミリスチン酸イソプロピルは、本発明で揮散調整剤としての作用を示すことがあり、また、色彩の付加は商品価値を高めるだけでなく、揮散性薬剤の揮散終点を明瞭に視認させるインジケーターとしても使用可能である。
薬剤担持体を調製するに際しても、その担持方法は何ら限定されず、分注方式、含浸方式、スプレー方式等、公知の従来技術を適宜採用すればよい。
In the present invention, about 100 mg to 2 g of the volatile agent is supported on the entire carrier, and if necessary, a solvent, a stabilizer, a volatilization regulator, a surfactant, a colorant, and the like are appropriately added together with the volatile agent. Can do. Examples of the solvent include hydrocarbon solvents such as n-paraffin and isoparaffin, glycol solvents such as propylene glycol, 1,3-butylene glycol and dipropylene glycol, alcohol solvents, ketone solvents and ester solvents. Examples of the stabilizer include, but are not limited to, BHT and BHA. Butyl stearate and isopropyl myristate may show the action as volatilization regulators in the present invention, and the addition of color not only enhances the commercial value but also makes it possible to clearly see the volatilization end point of the volatilizing agent. Can also be used.
In preparing the drug carrier, the loading method is not limited at all, and a known conventional technique such as a dispensing method, an impregnation method, a spray method, or the like may be appropriately employed.
本発明のゴキブリ侵入防止用薬剤揮散装置は、薬剤担持体を回転させる方式、又は載置した薬剤担持体にファンによる風を当てる方式のいずれも採用可能である。より高い薬剤揮散性能が得られる点で前者の方式が好ましく、具体的な形態として、例えば、薬剤担持体を薬剤カートリッジに収納し、これを薬剤揮散装置に設置して回転せしめるタイプがあげられる。この場合、環状の薬剤カートリッジはその中心に軸受部を有し、これが回転駆動装置（モーター）の回転軸と嵌合しうるようになっている。
モーターの仕様としては、ＤＣ１．５Ｖ〜６．０Ｖ駆動で、５００〜３０００ｒｐｍの回転数を与えるものが適当である。回転数を上げれば揮散性薬剤の揮散量を増大させることができるが、揮散性薬剤の飛び散りを生じる恐れもあるので、最適な回転数は種々検討のうえ決定する必要がある。
The chemical volatilization apparatus for preventing invasion of cockroaches of the present invention can employ either a method of rotating a drug carrier or a method of applying a wind to a placed drug carrier. The former method is preferable in that higher drug volatilization performance can be obtained, and a specific form includes, for example, a type in which a drug carrier is housed in a drug cartridge, which is installed in a drug volatilization apparatus and rotated. In this case, the annular drug cartridge has a bearing portion at the center thereof, which can be fitted to the rotation shaft of the rotation drive device (motor).
As a specification of the motor, a motor that gives a rotational speed of 500 to 3000 rpm with DC 1.5V to 6.0V drive is appropriate. Increasing the rotational speed can increase the volatilization amount of the volatile drug, but the volatile chemical may be scattered, so the optimum rotational speed needs to be determined after various studies.
一方、載置した薬剤担持体にファンによる風を当てる方式の場合、ファンの形態としては、薬剤担持体に送風する軸流ファンであっても、又は吸気タイプのロータリーファンであっても構わない。いずれにおいても、ファンによって生ずる空気流に乗って、薬剤担持体から揮散性薬剤が拡散する。 On the other hand, in the case of a system in which air is applied by a fan to a placed medicine carrier, the fan may be an axial fan that blows air to the medicine carrier or an intake type rotary fan. . In any case, the volatile drug diffuses from the drug carrier on the air flow generated by the fan.
本発明の薬剤揮散装置には、吸気口、排気口が備えられ、更にスイッチオンを示すパイロットランプ、駆動条件を制御するようにプログラミングしたマイコン等を別途装填するのが好ましい。但し、シンプルな構造が実用的であり、薬剤担持体の装着は使用の都度取替え可能とするのが便利である。 The chemical volatilization apparatus of the present invention is preferably provided with an intake port and an exhaust port, and is additionally loaded with a pilot lamp indicating switch-on, a microcomputer programmed to control the driving conditions, and the like. However, a simple structure is practical, and it is convenient to be able to replace the drug carrier every time it is used.
こうして得られた本発明のゴキブリ侵入防止用薬剤揮散装置は、特定の駆動時間／停止時間の比と、１回あたりの特定の駆動時間を設定したうえで間欠的に駆動させることによって、該空間中における揮散性薬剤の有効薬剤濃度を使用開始から使用終了時点まで長期間にわたり安定して保持し、ゴキブリ等のこの空間への侵入を防止できると共に、人やペットに対する安全性に優れ、しかも駆動電源の節約の点でも有利なので、その実用性は極めて高い。
本発明のゴキブリ侵入防止用薬剤揮散装置が対象とする害虫としては、屋内でのゴキブリ類が主体であり、他の効果的な匍匐害虫としては、トコジラミ、アリ類、コクゾウ、シバンムシ等があげられる。なお、蚊や蚋、ハエ類、コバエ類、ユスリカ類等の飛翔害虫に対し、前記匍匐害虫類に対するのと同様、駆除効果は期待できないものの周辺の虫よけ効果は十分奏し得るものである。
The thus obtained cockroach invasion preventing chemical volatilization device of the present invention is configured to intermittently drive the space by setting a specific drive time / stop time ratio and a specific drive time per time. The effective concentration of the volatile drug in the inside is stably maintained over a long period from the start of use to the end of use, and it can prevent the invasion of cockroaches etc. into this space, and it is excellent in safety for people and pets and driven Since it is advantageous in terms of power saving, its practicality is extremely high.
The pests targeted by the chemical volatilization device for preventing invasion of cockroaches of the present invention are mainly cockroaches indoors, and examples of other effective insect pests are bed bugs, ants, red elephants, and hornworms. . In addition, although it is not expected to be effective against flying insects such as mosquitoes, moths, flies, fly flies, chironomids and the like, the insect repellent effect in the vicinity can be sufficiently achieved.
次に、具体的実施例ならびに試験例に基づいて、本発明のゴキブリ侵入防止用薬剤揮散装置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。 Next, the chemical volatilization apparatus for preventing invasion of cockroaches 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.
直径６０ｍｍで厚みが８ｍｍの円盤状のポリエステル製立体構造体に、エムペントリン０．４ｇと安定剤としてのジブチルヒドロキシトルエン０．０２ｇを含むケロシン溶液１．０ｇを担持させ、これを薬剤カートリッジに収納した。この薬剤カートリッジの軸受部を回転駆動装置（モーター回転数：１０００ｒｐｍ）の回転軸と嵌合させ、駆動時間と停止時間の比が１：１４でかつ１回あたりの駆動時間が１分である、間欠駆動式の本発明のゴキブリ侵入防止用薬剤揮散装置を調製した。
この薬剤揮散装置を台所（約２０ｍ３）の隅に置いて３０日間にわたり継続使用した。この間、エムペントリンの１時間あたりの平均揮散量は約０．３ｍｇで、また薬剤気中濃度はほぼ０．０２μｇ／ｍ３で安定して推移し、ゴキブリやアリ等の匍匐害虫が台所に侵入することはなかった。
A disk-shaped polyester three-dimensional structure having a diameter of 60 mm and a thickness of 8 mm was loaded with 1.0 g of kerosene solution containing 0.4 g of empentrin and 0.02 g of dibutylhydroxytoluene as a stabilizer, and this was stored in a drug cartridge. . The bearing part of this medicine cartridge is fitted to the rotation shaft of the rotation drive device (motor rotation speed: 1000 rpm), the ratio of the drive time to the stop time is 1:14, and the drive time per time is 1 minute. An intermittent drive type chemical volatilization device for preventing intrusion of cockroaches of the present invention was prepared.
This chemical volatilization apparatus was placed in the corner of the kitchen (about 20 m 3 ) and continuously used for 30 days. During this time, the average volatilization amount of empentrin per hour is about 0.3 mg, and the concentration in the air is stable at about 0.02 μg / m 3 , and insect pests such as cockroaches and ants enter the kitchen. It never happened.
実施例１に準じ、表１に示す各種ゴキブリ侵入防止用薬剤揮散装置を調製し、忌避効力試験を行った。なお、モーターの回転数はいずれも１２００ｒｐｍとした。結果を併せて表１に示す。
［忌避効力試験］
２．５×２ｍのフィールドにクロゴキブリ成虫（♂、♀）又はチャバネゴキブリ成虫（♂、♀）を３０匹放ち、フィールド内に水、固形飼料、及び５００Ｌ容器（容器片方の側面に幅１ｃｍのスリット開口部を５個所設置）を置き馴化させた。容器内に潜伏しているゴキブリ数を計数した後、容器内を水拭きして清潔にし、フィールド内に戻した。各ゴキブリ侵入防止用薬剤揮散装置を所定の位置に置き、経時的に容器内に潜伏したゴキブリ数を計え、下記の式に従って忌避率を算出した。
忌避率（％）＝［処理前の潜伏虫数−処理後の潜伏虫数］／処理前の潜伏虫数×１００
In accordance with Example 1, various cockroach invasion prevention chemical volatilization devices shown in Table 1 were prepared and tested for repellency. Note that the number of rotations of the motor was 1200 rpm. The results are also shown in Table 1.
[Repellent efficacy test]
Thirty adult black cockroaches (moths, moths) or cockroach cockroaches (moths, moths) are released in a 2.5 x 2 m field, and water, solid feed, and a 500-liter container (a 1 cm wide slit on one side of the container) 5 openings were installed) and habituated. After counting the number of cockroaches hidden in the container, the container was wiped clean and returned to the field. Each cockroach invasion prevention chemical volatilization device was placed at a predetermined position, the number of cockroaches that had hidden in the container over time was counted, and the repelling rate was calculated according to the following formula.
Repelling rate (%) = [number of latent worms before treatment−number of latent worms after treatment] / number of latent worms before treatment × 100
試験の結果、本発明のゴキブリ侵入防止用薬剤揮散装置は、長期間にわたり実用的なゴキブリ忌避効果を示し、薬剤揮散装置設置空間へのゴキブリの侵入を防止し得ることが認められた。従って、薬剤揮散装置の駆動時間と停止時間の比が１：５〜１：３０、好ましくは１：１０〜１：２０で、かつ１回あたりの駆動時間が０．５〜５分の条件で間欠的に駆動させることの有用性が実証された。
これに対し、比較例１のように、駆動時間に較べて停止時間を所定比率以上に長くすると、忌避効果を示すのに必要な薬剤有効濃度が安定して得られず、一方、停止時間を所定比率より短くすると、忌避効果は十分ながら、人やペットに対する安全性や駆動電源の節約の観点に照らし好ましくなかった。
As a result of the test, it was confirmed that the chemical volatilization apparatus for preventing invasion of cockroaches of the present invention exhibited a practical cockroach repellent effect over a long period of time and could prevent the invasion of cockroaches into the space for installing the chemical volatilization apparatus. Therefore, the ratio of the driving time and the stopping time of the chemical volatilization device is 1: 5 to 1:30, preferably 1:10 to 1:20, and the driving time per time is 0.5 to 5 minutes. The usefulness of intermittent driving has been demonstrated.
On the other hand, if the stop time is made longer than a predetermined ratio as compared with the drive time as in Comparative Example 1, the effective drug concentration necessary to show the repellent effect cannot be stably obtained, while the stop time is When the ratio is shorter than the predetermined ratio, the avoidance effect is sufficient, but it is not preferable in view of safety for people and pets and saving of driving power.
縦４０ｍｍ、横６０ｍｍで厚みが２ｍｍのポリエステル製不織布に、メトフルトリン０．２ｇ、安定剤としてのジブチルヒドロキシトルエン０．０１ｇと「緑の香り」と称する香料成分０．０１ｇを含むケロシン溶液０．４ｇを担持させて薬剤担持体とした。これを回転駆動装置（モーター回転数：１３００ｒｐｍ）の吸気口とファンの間に設置し、ファンによる風を当てて薬剤を揮散させるタイプであって、駆動時間と停止時間の比が１：１２でかつ１回あたりの駆動時間が２分である、間欠駆動式の本発明のゴキブリ侵入防止用薬剤揮散装置を調製した。
この薬剤揮散装置を物置（約２４ｍ３）の入口に置いて３０日間にわたり継続使用したところ、実施例１［薬剤担持体を回転させるタイプ］と同様に、ゴキブリ等の匍匐害虫の物置への侵入を防止することができた。
0.4 g of kerosene solution containing 0.2 g of methotreline, 0.01 g of dibutylhydroxytoluene as a stabilizer and 0.01 g of a fragrance ingredient called “green fragrance” in a polyester nonwoven fabric having a length of 40 mm, a width of 60 mm and a thickness of 2 mm To make a drug carrier. This is a type that is installed between the air inlet of the rotation drive device (motor rotation speed: 1300 rpm) and the fan, and blows the chemical by blowing the air from the fan, and the ratio of the drive time and the stop time is 1:12. In addition, an intermittent drive type chemical volatilization prevention apparatus for invasion of cockroaches of the present invention in which the drive time per one time was 2 minutes was prepared.
When this chemical volatilization device was placed at the entrance of the storeroom (about 24 m 3 ) and continued to be used for 30 days, as in Example 1 [type in which the drug carrier is rotated], the infestation of insect pests such as cockroaches Could be prevented.
本発明のゴキブリ侵入防止用薬剤揮散装置は、害虫防除分野だけでなく、例えば、芳香、消臭分野などの、薬剤を揮散させる分野においても実用化が可能である。
The chemical volatilization device for preventing invasion of cockroaches of the present invention can be put into practical use not only in the pest control field but also in the field where chemicals are volatilized, such as the aroma and deodorization fields.
Claims (1)
前記薬剤担持体を回転させて、遠心力によって前記揮散性薬剤を空間に揮散させる駆動装置と、を備え、
前記駆動装置を駆動時間と停止時間の比が１：８〜１：１４でかつ１回あたりの駆動時間が１〜２分の条件で間欠的に駆動させ、該空間中における前記揮散性薬剤の有効薬剤濃度を使用開始から使用終了時点まで安定に保持して、ゴキブリのこの空間への侵入を防止するようになしたことを特徴とするゴキブリ侵入防止用薬剤揮散装置。 A drug carrier carrying empentrin ,
A drive device that rotates the drug carrier and volatilizes the volatile drug into the space by centrifugal force; and
The drive device is driven intermittently under the condition that the ratio of the drive time and the stop time is 1: 8 to 1:14 , and the drive time per one time is 1 to 2 minutes. A chemical volatilization apparatus for preventing invasion of cockroaches, wherein the effective chemical concentration is stably maintained from the start of use to the end of use to prevent the invasion of cockroaches into this space.
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