JP3660694B2 - Insecticide for clothing pests - Google Patents
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- JP3660694B2 JP3660694B2 JP09916994A JP9916994A JP3660694B2 JP 3660694 B2 JP3660694 B2 JP 3660694B2 JP 09916994 A JP09916994 A JP 09916994A JP 9916994 A JP9916994 A JP 9916994A JP 3660694 B2 JP3660694 B2 JP 3660694B2
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【０００１】
【産業上の利用分野】
本発明は、衣類害虫用防虫剤に関し、さらに詳しくは、蒸気圧が高く昇華速度の速い昇華性物質と、蒸気圧が昇華性物質に比べて低く、揮散速度が比較的遅い常温揮散性防虫薬剤を、昇華性物質の昇華と常温揮散性防虫薬剤の揮散の終点がほぼ同じようになるようにして一定期間安定して徐放的に揮散させると共に、薬効残存状態及び終点が明確に判別できるようにした衣類害虫用防虫剤に関する。
【０００２】
【従来の技術】
従来、衣類害虫用防虫剤（殺虫剤、忌避剤、香料を含む）としては、固形状のパラジクロルベンゼン、ナフタリン、樟脳等の昇華性防虫薬剤と、液状の有機リン系化合物（例えばジクロルボス等）、合成ピレスロイド系〔例えば（Ｒ，Ｓ）−１−エチニル−２−メチルペント−２−エニル（１Ｒ）−シス、トランスクリサンテマート（以下、エムペントリンという）、１−エチニル−２−メチル−２−ペンテニル−２，２−ジメチル−３−（２′，２′−ジクロルビニル）−シクロプロパン−１−カルボキシレート、１−エチニル−２−メチル−２−ペンテニル−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、３−アリル−２−メチルシクロペント−２−エン−４−オン−１−イル−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（以下、テラレスリンという）等〕などの揮発性防虫剤が知られている。
【０００３】
前者の固形状防虫剤は、プラスチック容器に収納したり、あるいは和紙又は不織布等で包装して使用されている。この和紙又は不織布等による包装は、固形状防虫剤自身が昇華によって短期間内に消失するのを抑制し、防虫効果の持続性を高めるため、あるいは防虫剤の接触による衣類等の汚染を防止するために行われるものである。
一方、後者の液状防虫剤は、紙、プラスチック、多孔質物質等を含浸体として用い、これに含浸せしめたものをそのままの状態で、又はプラスチック容器等に収納して使用されている。
【０００４】
【発明が解決しようとする課題】
昇華性固形状防虫剤と揮散性防虫薬剤を混合し、粉末状又は錠剤にした衣類害虫用防虫剤について、不織布、和紙、樹脂フィルムと不織布等による組合せ包装について詳しく検討されたものはない。
通常、前記したような液状防虫剤は、前記の固形状防虫剤に比べて防虫力は高く、僅かな量で防虫効力を示す。しかし、その蒸気圧は固形状防虫剤に比べて低く、また揮散量が少ないため、空間における防虫効果が低いという欠点がある。このため、固形状防虫剤のように不織布、和紙等で包装して揮散を抑制する必要はなく、むしろ揮散表面積を大きくする等して、揮散を増大させる工夫が必要である。つまり、常温揮散性防虫薬剤をパルプ製原紙等の含浸体に含浸させた揮散表面積の広い防虫マットを不織布、和紙等の通気性を有するシートで包被するという方策が考えられる。
【０００５】
一方、常温揮散性防虫薬剤が昇華性物質の成形基材内に含有せしめられてなる構成の錠剤は、揮散表面積が小さく、揮散性がおちるという難点がある。さらに、昇華性物質が昇華消失するに従って、含有している常温揮散性防虫薬剤の揮散が遅いため順次錠剤表面上に露出して油状物が溜まり、衣服を汚染するという問題がある。
また、前記昇華性固形状防虫薬剤は防虫薬剤自身が昇華消失することによって終点を明確に表示できるのに比較して、前記エムペントリン等の常温揮散性防虫薬剤の液状薬剤は、その性状から一般にパルプ製原紙等の含浸体に含浸保持された剤型として使用されるので、効力終点時においても紙又はプラスチック等の含浸体がそのままの形状で残り、外観的に何ら変化を起こさず、使用の終点を明確に認知することができないという問題点がある。
【０００６】
従って、本発明の目的は、上記のような欠点をなくし、常温揮散性防虫薬剤をその使用目的に応じて一定期間安定して徐放的に揮散させることが出来ると共に、薬効残存状態及び薬剤揮散完了後に終点が明確に判別できる衣類害虫用防虫剤を提供することにある。
さらに本発明の目的は、常温揮散性防虫薬剤と該常温揮散性防虫薬剤を含有保持する無臭性もしくは微臭性の昇華性物質とを組み合わせた錠剤において、蒸気圧が高く昇華速度の速い昇華性物質の昇華を抑制すると共に、蒸気圧が昇華性物質に比べて低く、揮散速度が比較的遅い常温揮散性防虫薬剤をより広い揮散面積でスムーズに揮散させ、昇華性物質の昇華と常温揮散性防虫薬剤の揮散がほぼ同じ時期に完了するようにした衣類害虫用防虫剤を提供することにある。
【０００７】
さらに本発明のより特定的な目的は、常温揮散性防虫薬剤と昇華性物質とを組み合わせた錠剤を、昇華性物質の昇華揮散ガスの透過量を調整した不織布又は和紙からなる通気性材料と一部が透明な樹脂フィルムで包装して収納し、揮散に際して、常温揮散性防虫薬剤が昇華性物質の揮散と共に錠剤表面に滲出して少しずつ残存し、その残存油状防虫薬剤が容器の通気性材料に遂次含浸移行して通気性材料の表面に拡散され、広い揮散面積で常温揮散性防虫薬剤をスムーズに揮散せしめ、長期間に亘り所定の防虫効力が保たれるように徐放せしめ、一方、昇華性物質はその昇華揮散ガスの透過量を調整した通気性材料から昇華揮散ガスが徐々に揮散し、錠剤の表面より滲み出た常温揮散性防虫薬剤を遂次通気性材料へ供給して長期間に亘り所定の防虫力が保たれるようにすると共に、容器の一部を構成する透明な樹脂製フィルムもしくは板状体を通して上記昇華性物質の昇華消失状態を目視することによって薬効残存状態及び終点が認知できるようにした衣類害虫用防虫剤を提供することにある。
【０００８】
【課題を解決するための手段】
本発明によれば、前記目的を達成するため、液状の常温揮散性防虫薬剤と該常温揮散性防虫薬剤を含有保持する昇華性物質とを組み合わせた錠剤を、一部が透明な樹脂製フィルムもしくは板状体からなり、他の部分が不織布又は紙からなる、液状物質を含浸保持可能な通気性材料であって、かつその内面の少なくとも一部分に昇華性物質の昇華揮散ガスの透過を抑制するガス透過抑制層を形成した通気性材料から構成されてなる包納容器内に収納し、錠剤から昇華性物質が揮散する前から既に通気性材料に移行していた上記常温揮散性防虫薬剤、及び昇華性物質の揮散と共に錠剤表面に滲出して少しずつ残存し、上記通気性材料に遂次含浸移行して拡散された上記常温揮散性防虫薬剤と、昇華性物質とを、昇華性物質の昇華揮散ガスの透過を上記ガス透過抑制層の存在によって抑制しながら上記通気性材料を介して揮散せしめると共に、上記透明な樹脂製フィルムもしくは板状体を通して上記昇華性物質の昇華消失状態を目視することによって薬剤残存状態及び終点が認知できるようにしたことを特徴とする衣類害虫用防虫剤が提供される。
【０００９】
好適な態様によれば、前記ガス透過抑制層は、通気性材料の内面の５〜９７％、好ましくは３０〜８０％を覆うように、ポリプロピレン（ＰＰ）、ポリエチレン（ＰＥ）等の樹脂のラミネート、塗布コート又は印刷によって形成された被覆層からなる。
また、前記錠剤は、前記常温揮散性防虫薬剤及び昇華性物質の他に、揮発性溶剤又は不揮発性溶剤、気化性防黴剤、抗酸化剤、香料その他の薬剤を含有することができる。
【００１０】
【発明の作用及び態様】
本発明の衣類害虫用防虫剤は、液状の常温揮散性防虫薬剤の単剤、液状の常温揮散性防虫薬剤と香料、常温揮散性防虫薬剤と揮発性溶剤又は不揮発性溶剤を混合した２薬剤混合液、あるいは目的に応じて任意に数種類の他の揮散性薬剤が混在している薬剤原液等が昇華性物質からなる成形基材の内部及び表面部に含有された錠剤を、一部が透明で中の状態がよく見えるように樹脂製フィルムもしくは板状体等から構成され、他の部分が不織布又は紙からなる、液状物質を含浸保持可能な通気性材料であって、かつその内面の少なくとも一部分に、昇華性物質の揮散調整のためのガス透過抑制層を形成し、昇華性物質の昇華揮散ガスの透過量を任意に調整した通気性材料から構成された包納容器内に収納し、上記錠剤中の常温揮散性防虫薬剤や昇華性物質等の揮散性薬剤を包納容器の通気性材料を介して揮散せしめるものであり、その際、昇華速度の速い昇華性物質の昇華揮散ガスの透過は上記ガス透過抑制層の存在によって抑制され、一方、揮散速度の比較的遅い常温揮散性防虫薬剤は上記通気性材料へ遂次含浸移行してその表面に拡散させることによってより広い揮散面積でスムーズに行えるようにし、このようにして昇華性物質の昇華速度と常温揮散性防虫薬剤の揮散速度の違いを巧みに調整して、常温揮散性防虫薬剤を一定期間安定して徐放的に揮散せしめるようにしたものである。
【００１１】
本発明の衣類害虫用防虫剤の作用について詳しく説明すると、揮散に際して、まず使用開始時には、包納容器内の錠剤表面部に含有保持されている液状の常温揮散性防虫薬剤が昇華性物質の揮散する前から通気性材料を介して徐々にその表面へ滲出移行しているため、通気性材料の表面に含浸・拡散されている常温揮散性防虫薬剤が最初に揮散し、使用開始初期から所定の防虫効果が得られる。
また、使用時においては、昇華性物質が常温揮散性防虫薬剤より速く揮散し、昇華性物質が昇華消失するに従って、錠剤中に含有されている常温揮散性防虫薬剤や他の含有成分が順次錠剤表面上に滲出露出し、その残存油状防虫薬剤がすぐに包納容器の不織布又は紙からなる油状物質を含浸保持可能な通気性材料へ遂次含浸され、常に少しずつ常温揮散性防虫薬剤が通気性材料へ補給され、通気性材料の外側全表面に拡散される。その結果、常温揮散性防虫薬剤の揮散面積が広くなり、防虫薬剤がスムーズに揮散して長期間に亘り一定の防虫効力が保たれるように徐放せしめることができる。
【００１２】
またこの際、前記したように、通気性材料の内面の少なくとも一部はガス透過抑制層によって覆われているため、昇華速度の速い昇華性物質の昇華揮散ガスの透過は抑制され、昇華性物質の昇華速度と常温揮散性防虫薬剤の揮散速度の違いが調整され、昇華性物質の昇華と常温揮散性防虫薬剤の揮散をほぼ同時期に完了させることができる。
なお、上記のように、通気性材料の内面の少なくとも一部がガス透過抑制層によって覆われていることによって、ガス透過抑制層の材質によっては常温揮散性防虫薬剤の通気性材料への含浸移行が抑制される場合もあるが、通気性材料へ含浸移行した常温揮散性防虫薬剤は通気性材料の外表面全域に拡散するので、常温揮散性防虫薬剤のスムーズな揮散が妨げられることはない。
【００１３】
また、錠剤を収納する包納容器の一部が透明な樹脂製フィルムもしくは板状体から成るため、該透明な樹脂製フィルムもしくは板状体を通して上記昇華性物質の昇華消失状態を目視することによって、薬効残存状態及び終点を明瞭に認知することができる。
【００１４】
前記したように、常温揮散性防虫薬剤が昇華性物質の成形基材内に含有せしめられてなる構成の錠剤は、揮散表面積が小さく、且つ、昇華性物質が昇華消失するに従って、含有されている常温揮散性防虫薬剤の揮散が遅いため順次表面上に滲出露出して、少しずつ錠剤の表面に残存する。その結果、残存油状防虫薬剤が錠剤表面に溜まり、揮散効率が悪くなる。さらに、残存油状防虫薬剤により衣服の汚染が生じる。また、常温揮散性防虫薬剤と昇華性物質とを組み合わせた錠剤を通気性材料の紙又は不織布等で包装した包納容器では、昇華性物質の昇華揮散ガスの透過が速く、短期間に昇華性物質が無くなり、常温揮散性防虫薬剤をスムーズに揮散して長期間に亘り一定の防虫効力が保たれるように徐放することができず、且つ、防虫薬剤の揮散インジケーターとして昇華性物質の昇華消失状態を目視することも、常温揮散性防虫薬剤の薬効残存状態を認知することもできない。
【００１５】
これに対して、本発明のように、液状の常温揮散性防虫薬剤や他の常温揮散性薬剤原液等が昇華性物質からなる成形基材の内部及び表面部に含有保持された錠剤を収納する包納容器が、不織布又は紙からなる、油状物質を含浸保持可能な通気性材料であって、その内面に、揮散調整のためのガス透過抑制層を形成し、常温揮散性防虫薬剤の滲出及び昇華性物質の昇華揮散ガスの透過を阻止したり、あるいはガス透過抑制層の材料を適宜選定することにより、常温揮散性防虫薬剤は通気性材料の内面全体から外面全体へ含浸移行して拡散するが、昇華性物質の昇華揮散ガスの透過のみを抑制・調整するように処理されている通気性材料から構成することにより、昇華性物質の昇華揮散ガスの透過量を調整することができる。つまり、昇華性物質の昇華揮散ガスの透過量を調整するために、通気性材料の内面の一部にガス透過抑制層を設けることにより、錠剤中に含有されている常温揮散性防虫薬剤や他の含有成分が順次錠剤表面上に滲出露出しても、その残存油状防虫薬剤はすぐに包納容器の紙又は不織布の油状物質を容易に含浸保持可能な通気性材料へ遂次含浸され、常に少しずつ常温揮散性防虫薬剤が通気性材料へ補給され、通気性材料の外表面全面に移行拡散される。その結果、常温揮散性防虫薬剤の揮散面積が広くなり、揮散効率が高くなると共に、必要な揮散量を充分に確保でき、防虫薬剤がスムーズに揮散して長期間に亘り一定の防虫効力が保たれるように徐放せしめることができる。また、前記したように、昇華性物質の昇華揮散ガスの透過は、通気性材料の内面の一部に昇華性物質の昇華揮散ガスの透過量を調節するために形成されたガス透過抑制層によって抑制されるので、昇華性物質は通気性材料から徐々に一定速度で昇華消失し、防虫薬剤の揮散インジケーターとして昇華性物質の昇華消失状態を目視することによって、薬効残存状態及び終点を認知することができる。
【００１６】
また、前記錠剤に、常温揮散性防虫薬剤及び昇華性物質の他に、揮発性溶剤又は不揮発性溶剤や香料等を含有させることにより、常温揮散性防虫薬剤の通気性材料への移行促進効果が得られ、また気化性防黴剤その他の薬剤を含有させることにより、使用薬剤に応じた他の効果も得られる。
【００１７】
本発明の錠剤に含有保持される液状の常温揮散性防虫薬剤としては、液状防殺虫剤が挙げられる。液状防殺虫剤としては、例えば（Ｒ，Ｓ）−１−エチニル−２−メチルペント−２−エニル（１Ｒ）−シス、トランスクリサンテマート（以下、エムペントリンという）、（＋）１Ｒ・トランス−２，２−ジメチル−３−（２，２−ジクロロビニル）−ジクロロプロパンカルボン酸２，３，５，６−テトラフルオロベンジル（以下、ベンフルスリンという）、１−エチニル−２−メチル−２−ペンテニル−２，２−ジメチル−３−（２´，２´−ジクロルビニル）−シクロプロパン−１−カルボキシレート、１−エチニル−２−メチル−２−ペンテニル−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、３−アリル−２−メチルシクロペント−２−エン−４−オン−１−イル−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（以下、テラレスリンという）、５−（２−プロパルギル）−３−フリルメチルクリサンテマート（以下、フラメトリンという）等のピレスロイド系殺虫剤、ジクロルボス等の常温揮散性殺虫剤、フタル酸ジエチル、フタル酸ジブチル、フマル酸ジエチル、Ｎ，Ｎ−ジエチル−ｍ−トルアミド等の防虫・忌避剤、安息香酸エチル、サフロール、イソサフロール、オイゲノール、シトロネロール、アネトール、Ｌ−カルボン等の防虫香料、ケイ皮アルデヒド、ベンズアルデヒド等の防虫・防黴剤などが挙げられ、上記防殺虫性薬剤を単独であるいは２種以上組み合わせて使用することができる。
また、気化性防黴剤としては、α−ブロムシンナムアルデヒド（ＢＣＡ）、２−イソプロピル−５−メチルフェノール（チモール）、イソプロピルメチルフェノール（商品名「フレサイド−Ｓ」住友製薬（株））などが挙げられる。
【００１８】
前記常温揮散性を有する液状防殺虫剤や気化性防黴剤を含有保持させるための昇華性物質としては、２，４，６−トリイソプロピル−１，３，５−トリオキサン（商品名「サンサブリ」、小川香料（株）製）、トリシクロドデカン（商品名「アイサワーＤ」、出光石油化学（株）製）、アダマンタン、２−ヒドロキシカンファー（慣用名：ボルネオール）、２，２−ジメチル−１，３−プロパンジオール（慣用名：ネオペンチルグリコール）、シクロデカンなど従来公知の各種昇華剤を用いることができる。なお、錠剤の形態は成型できる形ならばどのような形でもよい。本発明の錠剤は、これら各種昇華性物質を主体とし、前記揮散性を有する液状防殺虫剤や気化性防黴剤を含有させる他、ジャスミン、パインアップルオイル、Ｌ−カルボン、イソオイゲノール、ベンズアルデヒド、ベンジルアセテート等各種香料及び調合香料など、また、Ｎ，Ｎ−ジエチル−ｍ−トルアミド、フタル酸ジメチル、フタル酸ジエチル、フタル酸ジブチル、２−エチル−１，３−ヘキサンジオール、ミリスチン酸イソプロピル、ラウリン酸ヘキシル、パルミチン酸イソプロピル等の揮発性溶剤又は不揮発性溶剤などを含有させることにより、常温揮散性を有する防虫薬剤や防黴剤等が、包納容器の不織布又は紙で構成されている液状物質を含浸保持可能な通気性材料へ遂次少しずつ、徐々にスムーズに滲出、含浸移行されるように適用し、常温揮散性を有する防虫薬剤や防黴剤等の揮散を効率的に行えるようにせしめ、長期間に亘って防虫薬剤や防黴剤を徐放的に揮散させ一定効力を発揮させる衣類用防虫剤や防黴剤等として好適に用いることができる。
【００１９】
なお、前記薬剤を目的に応じて任意に配合した薬液を昇華性物質に含有保持してなる本発明の錠剤は、必要に応じて、例えば、２，６−ジブチル−３−メチルフェノール（ＢＨＴ）、イソアスコルビン酸、イソアスコルビン酸ナトリウム、ｄｌ−α−トコフェノール（ビタミンＥ）等の抗酸化剤、２−ヒドロキシ−４−メトキシベンゾフェノン等の紫外線吸収剤などを適宜配合する事により、防殺虫性薬剤の経時における分解をおさえ、長期間に亘って防虫効力を安定して発揮せしめることができる。
【００２０】
本発明で用いる防殺虫性薬剤を含有した昇華性物質の錠剤を収納する包納容器の大部分は、不織布又は紙からなる通気性材料から構成されるが、この材質は昇華性物質の錠剤から滲出する防殺虫性薬剤を全て含浸、拡散せしめ得る材質であれば全て使用可能である。例えば、成形された紙容器（厚さ０．１〜５ｍｍ）、成形加工が可能な不織布〔目付５０〜５００（ｇ／ｍ2）、厚さ０．２〜５ｍｍ〕、一般の不織布〔目付２０〜６００（ｇ／ｍ2）、厚さ０．２〜５ｍｍ〕などが挙げられる。
本発明の包納容器は、このような通気性材料から通常の容器形態に作成できる。
通常の容器形態の場合、常温揮散性防虫薬剤を含有した昇華性物質の錠剤の薬効残存状態及び終点が認知できるように、包納容器の片面全部又は一部を透明な樹脂製フィルムもしくは板状体等とし、これに不織布等の通気性材料を溶着密封した包納容器内に収納した昇華性物質の錠剤が外から良く見える様にする。
【００２１】
透明な樹脂性フィルムの材質は、ポリプロピレン樹脂（ＰＰ）、ポリエチレン樹脂（ＰＥ）、塩化ビニール樹脂、アクリロニトリル・ブタジエン・スチレン共重合体樹脂（ＡＢＳ）、４−メチルペンテン−１をベースとするポリオレフィン（商品名「ＴＰＸ」：三井石油化学（株）製）、また、透明な多層フィルム、例えば、ポリプロピレン樹脂の多層シート（商品名「マルチレイ」、出光石油化学（株）製）、アクリロニトリル系可塑性樹脂を主体にした多層シート（商品名「ゼクロン」、三井東圧化学（株）製）、ポリエチレンテレフタレート（ＰＥＴ）／エチレン・ビニルアルコール共重合体（ＥＶＡＬ）／ポリエチレン（ＰＥ）の多層シート、２軸延伸ポリプロピレン（ＯＰＰ）／エチレン酢酸ビニル共重合体（ＥＶＡ）の多層シート、ビニリデンコート２軸延伸ポリプロピレン（ＫＯＰ）／無延伸ポリプロピレン（ＣＰＰ）の多層シート等が挙げられる。また、透明な樹脂製フィルムもしくは板状体等は常温揮散性防虫薬剤が僅かずつ透過する透過性フィルム、例えばポリオレフィン系のフィルムを積層したもの等で溶着密封して覆い、収納した錠剤から常温揮散性防虫薬剤及び昇華性物質が容器全面から揮散するように構成することもできる。
【００２２】
衣類害虫用防虫剤の容器形態において、常温揮散性防虫薬剤や他の常温揮散性薬剤原液等が昇華性物質からなる成形基材の内部および表面部に含有保持された錠剤を収納する包納容器の片面又は一部を透明な樹脂フィルムにし、両面の大部分に使用する不織布又は紙からなる油状物質を含浸保持可能な通気性材料単独で構成すると、昇華性物質の昇華揮散ガスを容易に透過して長期間に亘って一定して揮散できず、昇華性物質が早く無くなる。よって、本発明においては、不織布又は紙からなる通気性材料の内面の一部に、昇華性物質の昇華揮散ガスの透過量を調節するために、ポリプロピレン（ＰＰ）、ポリエチレン（ＰＥ）等の樹脂や、あるいはさらに顔料、染料等を含有する材料で通気性材料の内面の５〜９７％、好ましくは３０〜８０％を覆うように任意の形状にラミネート、塗布コート又は印刷する等してガス透過抑制層を形成し、昇華性物質の昇華揮散ガスの透過量を調整する。また、通気性を有する樹脂や、あるいはさらに顔料、染料等を含有する材料を用いて透過可能なように任意の厚さに通気性材料の内面全面にラミネート、塗布コート又は印刷する等してガス透過抑制層を形成することにより、昇華性物質の昇華揮散ガスの透過量を任意に抑制・調整することも可能である。
なお、後述する実施例から明らかなように、昇華性物質の昇華揮散ガスの通気性材料に対する透過量は、通気性材料の目付により影響されるので、通気性材料の目付に応じてその内表面に対するガス透過抑制層の被覆割合を設定すればよい。
【００２３】
本発明の衣類害虫用防虫剤の包装容器の形態は、任意の形態に作製できるが、好適な形態を図１乃至３を参照して説明する。
図中、１は常温揮散性防虫薬剤が昇華性物質の成形基材内に含有保持せしめられてなる錠剤であり、この錠剤１は、各々の周辺部Ａが溶着された透明な樹脂製フィルム２と通気性材料３の中に収納されている。通気性材料３の内面には、前記したように、ポリプロピレン（ＰＰ）、ポリエチレン（ＰＥ）等の樹脂や顔料、染料等を用いてガス透過抑制層４が平行な筋状に印刷されている。
なお、ガス透過抑制層の模様は任意でよいことは勿論である。また、樹脂製フィルムに代えて透明な樹脂製板状体を錠剤を収納する凹陥部を形成するように成形し、これにガス透過抑制層を形成した面が内面となるように通気性材料を貼着してもよいし、あるいは錠剤収納部内面にガス透過抑制層を形成した容器を通気性材料から成形し、この容器の開口部に透明な樹脂製フィルム又はプレートを貼着するような構成としてもよい。
【００２４】
【実施例】
以下、実施例を示して本発明についてさらに具体的に説明するが、本発明が下記実施例に限定されるものでないことはもとよりである。
【００２５】
昇華性物質と常温揮散性防虫薬剤を組み合わせた表１に示す処方の以下の薬剤について、通気性を有し液状物質を容易に含浸保持する通気性材料を用いて揮散昇華試験を行った。
比較例１： サンサブリ２ｇにエムペントリン６０ｍｇを含浸させた錠剤を、面積２５ｃｍ2（５×５ｃｍ）、目付け２００ｇ／ｍ2のＰＰ不織布製の通気性材料とガスバリアー性を有するフィルムとで構成される袋に収納し、昇華揮散させるように構成したものを比較例１とした。
比較例２： 同様にサンサブリ２ｇにエムペントリン６０ｍｇを含浸させた錠剤を、面積２５ｃｍ2（５×５ｃｍ）、目付け２５０ｇ／ｍ2のＰＰ不織布製の通気性材料とガスバリアー性を有するフィルムとで構成される袋に収納し、昇華揮散させるように構成したものを比較例２とした。
実施例１： 上記と同じ錠剤を、錠剤に触れる内側を５０％、ＰＰ製フィルムでラミネート（以下同様）した面積２５ｃｍ2（５×５ｃｍ）、目付け２００ｇ／ｍ2のＰＰ不織布製の通気性材料とガスバリアー性を有するフィルムとで構成される袋に収納し、昇華揮散させるように構成したものを実施例１とした。
実施例２： 上記と同じ錠剤を、錠剤に触れる内側を７５％ラミネートした面積２５ｃｍ2（５×５ｃｍ）、目付け２００ｇ／ｍ2のＰＰ不織布製の通気性材料とガスバリアー性を有するフィルムとで構成される袋に収納し、昇華揮散させるように構成したものを実施例２とした。
実施例３： 上記と同じ錠剤を、錠剤に触れる内側を５０％ラミネートした面積２５ｃｍ2（５×５ｃｍ）、目付け２５０ｇ／ｍ2のＰＰ不織布製の通気性材料とガスバリアー性を有するフィルムとで構成される袋に収納し、昇華揮散させるように構成したものを実施例３とした。
比較例３： 上記と同じ錠剤を、面積２５ｃｍ2（５×５ｃｍ）、目付け１０ｇ／ｍ2のＰＰ不織布製の通気性材料とガスバリアー性を有するフィルムとで構成される袋に収納し、昇華揮散させるように構成したものを比較例３とした。
比較例４： 上記と同じ錠剤を、面積２５ｃｍ2（５×５ｃｍ）、目付け６５０ｇ／ｍ2のＰＰ不織布製の通気性材料とガスバリアー性を有するフィルムとで構成される袋に収納し、昇華揮散させるように構成したものを比較例４とした。
【表１】
（試験方法）
約５０リットルの容積の引き出しに羊毛モスリン布をほぼ一杯に収納し、その上部にそれぞれの処方例の衣料用防虫剤を設置した。衣料用防虫剤を定期的に回収し、測定した重量と試料調製時の重量から昇華量を求めた。昇華剤の経時的な残存量を表２及び図４に示す。
【表２】
また定量した防虫薬剤残存量と試料調製時の防虫薬剤量から薬剤揮散量を求めた。防虫薬剤残存量の経時変化を表３及び図５に示す。
【表３】
（試験結果）
表２及び図４に示す結果から明らかなように、不織布の目付けとラミネートした比率により昇華速度が異なった。比較例１と比較例２を比較すると不織布の目付けの大きい比較例２の方が昇華速度が遅い。また、比較例１、実施例１、実施例２はラミネートにより被覆した不織布面積が０％、５０％、７５％、となっているが、その被覆面積に応じて昇華速度が遅くなっている。
一方、表３及び図５に示す結果から明らかなように、目付けの同じ比較例１、実施例１、実施例２、また、比較例２及び実施例３では、常温揮散性防虫薬剤の揮散はそれぞれ同じ揮散傾向を示している。
昇華剤の昇華速度と常温揮散性防虫薬剤の揮散速度の二点から、実施例２と実施例３を比較すると、常温揮散性防虫薬剤の揮散速度は異なるが、昇華剤の昇華速度は、ほぼ等しいという結果が得られる。したがって、任意の目付けの不織布を任意の比率で被覆することで、昇華剤の昇華速度と常温揮散性防虫薬剤の揮散速度を任意に設定することが可能となる。また、不織布の目付けが特に小さい比較例３では、薬液を十分保持できず、不織布表面に滲み出た防虫薬剤が羊毛モスリン布に付着し、残存量が短期間で少なくなるという結果になった。一方、不織布の目付けの大きい比較例４では、防虫薬剤、昇華剤ともに減少量がとても少なく、衣類用防虫薬剤としての機能を果たさなかった。
【００２９】
【発明の効果】
以上のように、本発明の衣類害虫用防虫剤によれば、液状の常温揮散性防虫薬剤と該常温揮散性防虫薬剤を含有保持する無臭性もしくは微臭性の昇華性物質とを組み合わせた錠剤を、一部が透明な樹脂製フィルムもしくは板状体からなり、他の部分が不織布又は紙からなる、液状物質を含浸保持可能な通気性材料であって、かつその内面の少なくとも一部分に昇華性物質の昇華揮散ガスの透過を抑制するガス透過抑制層を形成した通気性材料から構成されてなる包納容器に収納したものであるため、揮散に際して、常温揮散性防虫薬剤が昇華性物質の揮散と共に錠剤表面に滲出して少しずつ残存し、その残存油状防虫薬剤が容器の通気性材料の内面に形成したガス透過抑制層以外の常温揮散性防虫薬剤が移行含浸可能な部分、又は、ガス透過抑制層を形成していても常温揮散性防虫薬剤は滲出移行できるように処理した通気性材料の内面全体から、徐々に遂次含浸移行して通気性材料の表面全体に拡散され、広い揮散面積で常温揮散性防虫薬剤をスムーズに揮散して長期間に亘り所定の防虫効力が保たれるように徐放せしめることができる。また一方、昇華性物質の透過は通気性材料の内面に昇華揮散ガスの透過調整のために形成したガス透過抑制層により抑制されているため、昇華性物質の昇華揮散ガスが徐々に揮散して、長期間に亘り所定の防虫力が保たれると共に、昇華性物質の昇華速度と常温揮散性防虫薬剤の揮散速度の違いが調整され、昇華性物質の昇華と常温揮散性防虫薬剤の揮散をほぼ同時期に完了させることができる。さらに、容器の一部を構成する透明な樹脂製フィルムもしくは板状体を通して上記昇華性物質の昇華消失状態を目視することによって、薬効残存状態及び終点を明瞭に認知することができる。
【図面の簡単な説明】
【図１】 本発明の衣類害虫用防虫剤の容器形態の一例を示す斜視図である。
【図２】 図１に示す防虫剤容器の部分破断平面図である。
【図３】 図１に示す防虫剤容器の縦断面図である。
【図４】 種々の処方の衣類害虫用防虫剤における昇華剤残存量の経時変化を示すグラフである。
【図５】 種々の処方の衣類害虫用防虫剤における防虫薬剤残存量の経時変化を示すグラフである。
【符号の説明】
１ 錠剤、２ 透明樹脂製フィルム、３ 通気性材料、４ ガス透過抑制層[0001]
[Industrial application fields]
The present invention relates to an insecticide for clothing pests, and more particularly, a sublimable substance having a high vapor pressure and a fast sublimation rate, and a room temperature volatile insecticide having a relatively low vapor pressure and a relatively low volatilization rate. So that the end point of sublimation of the sublimable substance and the volatilization of the room temperature volatile insect repellent is almost the same, and it is volatilized stably and slowly for a certain period of time, and the remaining state of the medicinal effect and the end point can be clearly discriminated. The present invention relates to an insect repellent for clothing pests.
[0002]
[Prior art]
Conventionally, as insect repellents for clothing pests (including insecticides, repellents, and fragrances), solid paradichlorobenzene, naphthalene, camphor and other sublimable insect repellents, and liquid organic phosphorus compounds (for example, dichlorvos) Synthetic pyrethroids [eg (R, S) -1-ethynyl-2-methylpent-2-enyl (1R) -cis, transcrysantemate (hereinafter referred to as empentrin), 1-ethynyl-2-methyl-2- Pentenyl-2,2-dimethyl-3- (2 ′, 2′-dichlorovinyl) -cyclopropane-1-carboxylate, 1-ethynyl-2-methyl-2-pentenyl-2,2,3,3-tetramethyl Cyclopropanecarboxylate, 3-allyl-2-methylcyclopent-2-en-4-one-1-yl-2,2,3,3-tetramethylcyclo B pan carboxylate (hereinafter, referred to as terallethrin) volatile insecticide such like] are known.
[0003]
The former solid insect repellent is stored in a plastic container or packaged with Japanese paper or non-woven fabric. This packaging with Japanese paper or non-woven fabric suppresses the disappearance of the solid insect repellent itself by sublimation within a short period of time, enhances the durability of the insect repellent effect, or prevents contamination of clothing etc. due to contact with the insect repellent. Is to be done.
On the other hand, the latter liquid insect repellent is used as it is impregnated with paper, plastic, porous material or the like, and the impregnated material is used as it is or stored in a plastic container or the like.
[0004]
[Problems to be solved by the invention]
None of the insect pests for clothing pests mixed with a sublimable solid insect repellent and a volatile insect repellent into powders or tablets have been studied in detail for non-woven fabric, Japanese paper, resin film and non-woven fabric combination packaging.
Usually, the liquid insect repellent as described above has higher insect repellent power than the solid insect repellent, and exhibits a repellent effect in a small amount. However, the vapor pressure is lower than that of the solid insect repellent, and since the amount of volatilization is small, there is a disadvantage that the insect repellent effect in the space is low. For this reason, it is not necessary to suppress volatilization by wrapping with a nonwoven fabric, Japanese paper, etc. like a solid insect repellent, and rather, a device for increasing volatilization is required by increasing the volatilization surface area. That is, it is conceivable to cover an insect repellent mat having a large volatilization surface area impregnated with an impregnated body such as pulp base paper with a room temperature volatile insect repellent agent with a sheet having air permeability such as a nonwoven fabric or Japanese paper.
[0005]
On the other hand, tablets having a configuration in which a room temperature volatile insect repellent is contained in a sublimable material molding substrate have a drawback that the volatilization surface area is small and the volatility falls. Furthermore, as the sublimable substance disappears, the volatilization of the room-temperature volatile insect repellent contained therein is slow, so that there is a problem that the oily substances are successively exposed on the tablet surface and the clothes are contaminated.
In addition, the sublimable solid insect repellent can clearly indicate the end point by the disappearance of the repellent itself, but the liquid chemical of the room temperature volatile insect repellent such as empentrin is generally a pulp. Since it is used as a dosage form impregnated and retained in an impregnated body such as papermaking paper, the impregnated body such as paper or plastic remains in its original shape even at the end of efficacy, and no change in appearance occurs, and the end point of use There is a problem that cannot be clearly recognized.
[0006]
Therefore, the object of the present invention is to eliminate the above-mentioned drawbacks, and to allow the room temperature volatile insect repellent to be volatilized stably and slowly for a certain period of time according to the purpose of use, as well as the remaining state of drug efficacy and drug volatilization. The object is to provide an insect repellent for clothing pests whose end point can be clearly identified after completion.
Further, an object of the present invention is a tablet comprising a combination of a room temperature volatile insect repellent and an odorless or slightly odor sublimable substance containing and retaining the room temperature volatile insect repellent, and has a high vapor pressure and a high sublimation rate. Suppresses sublimation of substances, vapor pressure is lower than that of sublimable substances, and a relatively low volatilization rate allows room temperature volatile insecticides to be volatilized smoothly over a wider volatilization area. An object of the present invention is to provide an insect repellent for clothing pests that allows the volatilization of the insect repellent to be completed at substantially the same time.
[0007]
Furthermore, a more specific object of the present invention is to sublimate a sublimable substance using a tablet that combines a room temperature volatile insect repellent and a sublimable substance. Volatilization Nonwoven fabric with adjusted gas permeation Or Japanese paper Consist of The breathable material and a part of it are wrapped and stored in a transparent resin film. At the time of volatilization, the room temperature volatile insect repellent exudes to the tablet surface along with the volatilization of the sublimable substance, and remains little by little. The container breathable material is gradually impregnated and diffused to the surface of the breathable material, and the room temperature volatile insecticide is smoothly volatilized over a wide volatilization area, so that the prescribed insecticidal efficacy is maintained over a long period of time. Release slowly, while sublimation substances sublimate Volatilization Sublimation from breathable materials with controlled gas permeation Volatilization Gas gradually evaporates and the room temperature volatile insect repellent exuded from the surface of the tablet is supplied to the breathable material so that the prescribed insect repellent power can be maintained over a long period of time. It is an object of the present invention to provide an insect repellent for insect pests in which the medicinal residual state and the end point can be recognized by visually observing the sublimation disappearance state of the sublimable substance through a transparent resin film or plate-like body constituting the material.
[0008]
[Means for Solving the Problems]
According to the present invention, in order to achieve the above object, a tablet comprising a combination of a liquid room temperature volatile insect repellent and a sublimation substance containing and retaining the room temperature volatile insect repellent, a partially transparent resin film or It consists of a plate-like body and the other part is non-woven fabric or Made of paper, Liquid substance Including With breathable material There And sublimation of a sublimable substance on at least a part of its inner surface Volatilization From a breathable material with a gas permeation suppression layer that suppresses gas permeation Composed Stored in a container , Tablets The above-mentioned room temperature volatile insecticide that had already been transferred to the breathable material before the sublimable substance volatilized from the agent, and exuded on the tablet surface along with the volatilization of the sublimable substance, remaining little by little. And above The above-mentioned room temperature volatile insect repellent and the sublimation substance diffused by the continuous impregnation and diffusion into the breathable material, sublimation of the sublimation substance Volatilization By volatilizing through the air permeable material while suppressing gas permeation by the presence of the gas permeation suppression layer, and visually observing the sublimation disappearance state of the sublimable substance through the transparent resin film or plate. Provided is an insect repellent for clothing pests, characterized in that the remaining state and end point of the medicine can be recognized.
[0009]
According to a preferred embodiment, the gas permeation suppression layer is a laminate of a resin such as polypropylene (PP) or polyethylene (PE) so as to cover 5 to 97%, preferably 30 to 80%, of the inner surface of the breathable material. And a coating layer formed by coating or printing.
Moreover, the said tablet can contain a volatile solvent or a non-volatile solvent, a vaporizing antifungal agent, an antioxidant, a fragrance | flavor, and other chemical | medical agents other than the said room temperature volatile insecticide and a sublimation substance.
[0010]
Action and embodiment of the invention
The insect pest for clothing pests of the present invention is a single agent of a liquid room temperature volatile insect repellent, a liquid room temperature volatile insect repellent and a fragrance, a room temperature volatile insect repellent and a volatile solvent or a non-volatile solvent mixed. A tablet containing a liquid or a drug stock solution containing several other volatilizable drugs arbitrarily depending on the purpose is contained in the inside and surface of a molding substrate made of a sublimable substance, and is partially transparent. It is composed of a resin film or a plate-like body so that the inside can be seen well, and the other part is nonwoven fabric or paper Consist of , Liquid substance Including With breathable material There In addition, a gas permeation suppression layer for adjusting volatilization of the sublimable substance is formed on at least a part of the inner surface of the sublimable substance. Volatilization Housed in a packaging container made of a breathable material with an arbitrarily adjusted gas permeation amount, and volatile chemicals such as room temperature volatile insecticides and sublimation substances in the above tablets are contained in the packaging container. In this case, sublimation of a sublimable substance having a high sublimation rate is performed. Volatilization Permeation of gas is suppressed by the presence of the gas permeation suppression layer, while a room temperature volatile insect repellent with a relatively low volatilization rate is transferred to the air permeable material through subsequent impregnation and diffused to the surface to spread a wider volatilization. It is possible to carry out smoothly in the area, and in this way skillfully adjust the difference between the sublimation rate of the sublimable substance and the volatilization rate of the room temperature volatile insect repellent so that the room temperature volatile insect repellent can be stably and slowly released for a certain period of time. It is intended to be volatilized.
[0011]
The action of the insect pest for clothing pests according to the present invention will be described in detail. At the time of volatilization, the liquid room temperature volatile insect repellent contained and held on the tablet surface portion in the packaging container is volatilized as a sublimable substance. Since the material gradually exudes and migrates to the surface of the breathable material before it is used, the room temperature volatile insect repellent that has been impregnated and diffused on the surface of the breathable material is volatilized first. An insect repellent effect is obtained.
In use, the sublimable substance volatilizes faster than the room temperature volatile insect repellent, and the sublimable substance sublimates and disappears. Exudation exposure on the surface, the residual oily insect repellent immediately Made of paper Oily substance Including The breathable material that can be immersed and retained is gradually impregnated, and the room temperature volatile insect repellent is constantly supplied to the breathable material and diffused to the entire outer surface of the breathable material. As a result, the volatilization area of the room temperature volatile insect repellent can be increased, and the insect repellent can be smoothly volatilized so that the insect repellent can be sustainedly released over a long period of time.
[0012]
At this time, as described above, since at least a part of the inner surface of the breathable material is covered with the gas permeation suppression layer, the sublimation of the sublimable substance having a high sublimation rate is performed. Volatilization Permeation of gas is suppressed, and the difference between the sublimation rate of the sublimable substance and the volatilization rate of the room temperature volatile insect repellent is adjusted, so that the sublimation of the sublimable substance and the volatilization of the room temperature volatile insect repellent are completed almost simultaneously. it can.
As described above, at least part of the inner surface of the breathable material is covered with the gas permeation suppression layer, so that depending on the material of the gas permeation suppression layer, the transition to impregnation of the room temperature volatile insecticide into the breathable material is performed. However, since the room temperature volatile insect repellent that has been impregnated and transferred to the air permeable material diffuses over the entire outer surface of the air permeable material, smooth volatilization of the room temperature volatile insect repellent is not hindered.
[0013]
Moreover, since a part of the packaging container for storing the tablet is made of a transparent resin film or plate, by visually observing the sublimation disappearance state of the sublimable substance through the transparent resin film or plate. The medicinal residual state and the end point can be clearly recognized.
[0014]
As described above, a tablet having a configuration in which a room temperature volatile insect repellent is contained in a sublimable substance molding base is contained as the volatilization surface area is small and the sublimable substance disappears. Since the volatilization of the room temperature volatile insect repellent is slow, it is exuded and exposed on the surface one by one and remains on the tablet surface little by little. As a result, the residual oily insect repellent accumulates on the tablet surface and the volatilization efficiency becomes poor. In addition, residual oily insect repellents cause clothing contamination. Sublimation of sublimable substances in packaging containers in which tablets containing a combination of room temperature volatile insect repellents and sublimable substances are packaged with paper or nonwoven fabric made of breathable material. Volatilization Gas permeation is fast, there is no sublimable substance in a short period of time, the room temperature volatile insecticide can be smoothly volatilized, and it cannot be released slowly so that a certain insecticidal effect is maintained over a long period of time, and It is impossible to visually observe the sublimation disappearance state of the sublimable substance as a volatilization indicator of the insect repellent, or to recognize the remaining effect state of the room temperature volatilization repellent.
[0015]
On the other hand, as in the present invention, a liquid room temperature volatile insect repellent or another room temperature volatile chemical stock solution is contained in the inside of the molding substrate made of a sublimable substance and the tablet held in the surface portion is stored. The container is non-woven or Made of paper, Oily substance Including With breathable material There A gas permeation suppression layer for volatilization adjustment is formed on the inner surface to exude a room temperature volatile insecticide and sublimate a sublimable substance. Volatilization By blocking the permeation of gas or appropriately selecting the material of the gas permeation suppression layer, the room temperature volatile insect repellent migrates from the entire inner surface to the entire outer surface of the breathable material and diffuses. Sublimation Volatilization Sublimation of sublimable substances by composing from breathable materials that have been treated to control and regulate only gas permeation Volatilization The amount of gas permeation can be adjusted. In other words, sublimation of sublimable substances Volatilization In order to adjust the amount of gas permeation, by providing a gas permeation suppression layer on a part of the inner surface of the breathable material, the room temperature volatile insect repellent and other ingredients contained in the tablet are successively placed on the tablet surface. Even if they are exposed to water, the remaining oily insect repellent is immediately impregnated into a breathable material that can be easily impregnated and retained with the oily substance of the paper container or nonwoven fabric of the container. It is replenished to the breathable material and transferred and diffused over the entire outer surface of the breathable material. As a result, the volatilization area of the room temperature volatile insect repellent becomes wider, the volatilization efficiency is increased, the required volatilization amount can be secured sufficiently, and the insect repellent is volatilized smoothly to maintain a constant insect repellent effect over a long period of time. It can be released slowly so as to sag. In addition, as described above, sublimation of a sublimable substance Volatilization Gas permeation is due to sublimation of sublimable substances on part of the inner surface of the breathable material. Volatilization Since it is suppressed by the gas permeation suppression layer formed to adjust the gas permeation amount, the sublimation substance gradually sublimates from the breathable material at a constant rate, and sublimation of the sublimation substance as a volatilization indicator for insecticides. By visually observing the disappearance state, it is possible to recognize the remaining medicinal state and the end point.
[0016]
In addition to the room temperature volatile insect repellent and sublimation substance, the tablet contains a volatile solvent or a non-volatile solvent, a fragrance, etc., so that the effect of promoting the transfer of the room temperature volatile insect repellent to a breathable material is achieved. In addition, by incorporating a vaporizable antifungal agent and other drugs, other effects according to the drug used can be obtained.
[0017]
Examples of the liquid room temperature volatile insect repellent contained and held in the tablet of the present invention include liquid insecticides. Examples of the liquid insecticide include (R, S) -1-ethynyl-2-methylpent-2-enyl (1R) -cis, transcrysantemate (hereinafter referred to as empentrin), (+) 1R / trans-2. , 2-Dimethyl-3- (2,2-dichlorovinyl) -
Further, as a vaporizable antifungal agent, α-bromocinnamaldehyde (BCA), 2-isopropyl-5-methylphenol (thymol), isopropylmethylphenol (trade name “Freside-S” Sumitomo Pharmaceutical Co., Ltd.) and the like are available. Can be mentioned.
[0018]
Examples of the sublimation substance for containing and retaining the liquid insecticide and vaporizing fungicide having the room temperature volatility include 2,4,6-triisopropyl-1,3,5-trioxane (trade name “Sun Sabri” , Ogawa Fragrance Co., Ltd.), tricyclododecane (trade name “Isour D”, manufactured by Idemitsu Petrochemical Co., Ltd.), adamantane, 2-hydroxycamphor (common name: borneol), 2,2-dimethyl-1, Various conventionally known sublimation agents such as 3-propanediol (common name: neopentyl glycol) and cyclodecane can be used. The form of the tablet may be any form as long as it can be molded. The tablet of the present invention is mainly composed of these various sublimation substances and contains the liquid insecticide and vaporizing fungicide having the above-mentioned volatility, as well as jasmine, pineapple oil, L-carvone, isoeugenol, benzaldehyde, Various fragrances such as benzyl acetate and blended fragrances, N, N-diethyl-m-toluamide, dimethyl phthalate, diethyl phthalate, dibutyl phthalate, 2-ethyl-1,3-hexanediol, isopropyl myristate, laurin By including a volatile solvent or a non-volatile solvent such as hexyl acid or isopropyl palmitate, an insect repellent or an antifungal agent having a room temperature volatility may be added to the non-woven fabric of the container or With paper Constructed liquid material Including It is applied to breathable materials that can be immersed and retained gradually and gradually so that it can be exuded and transferred to impregnate, so that it can efficiently volatilize insecticides and fungicides that have room temperature volatility. Insect repellents and fungicides can be volatilized gradually over a long period of time, and can be suitably used as an insect repellent for clothes, a fungicide and the like that exerts a certain effect.
[0019]
In addition, the tablet of the present invention formed by containing a chemical solution arbitrarily blended according to the purpose in a sublimable substance is, for example, 2,6-dibutyl-3-methylphenol (BHT) as necessary. Insecticidal properties by appropriately adding an antioxidant such as isoascorbic acid, sodium isoascorbate, dl-α-tocophenol (vitamin E), and an ultraviolet absorber such as 2-hydroxy-4-methoxybenzophenone The degradation of the drug over time can be suppressed, and the insect repellent effect can be stably exhibited over a long period of time.
[0020]
Most of the packaging containers for storing tablets of sublimable substances containing insecticides used in the present invention are non-woven fabric or paper Consist of Although it is composed of a breathable material, any material can be used as long as it can impregnate and diffuse all of the insecticide exuding from the tablet of the sublimable substance. For example, a molded paper container (thickness 0.1 to 5 mm), a non-woven fabric that can be molded [weight per
The packaging container of the present invention can be made into a normal container form from such a breathable material.
In the case of a normal container form, a transparent resin film or plate is used on all or part of one side of the packaging container so that the remaining efficacy and end point of the sublimation substance tablet containing a room temperature volatile insecticide can be recognized. A sublimable substance tablet stored in a packaging container in which a breathable material such as a nonwoven fabric is welded and sealed to the body is made visible from the outside.
[0021]
The material of the transparent resin film is polypropylene resin (PP), polyethylene resin (PE), vinyl chloride resin, acrylonitrile / butadiene / styrene copolymer resin (ABS), polyolefin based on 4-methylpentene-1 ( Trade name “TPX” manufactured by Mitsui Petrochemical Co., Ltd.), transparent multilayer film, for example, a multilayer sheet of polypropylene resin (trade name “Multilay” manufactured by Idemitsu Petrochemical Co., Ltd.), and acrylonitrile plastic resin Multi-layer sheet (trade name “Zeklon”, manufactured by Mitsui Toatsu Chemical Co., Ltd.), polyethylene terephthalate (PET) / ethylene-vinyl alcohol copolymer (EVAL) / polyethylene (PE) multilayer sheet, biaxial stretching Polypropylene (OPP) / ethylene vinyl acetate copolymer (EVA) multilayer sheet The multilayer sheets of vinylidene coated biaxially oriented polypropylene (KOP) / cast polypropylene (CPP) and the like. In addition, transparent resin films or plates are covered with a transparent film, such as a laminate of polyolefin film, which is permeated by room temperature volatile insecticides, and the room temperature volatilization from stored tablets. The insect repellent agent and the sublimable substance can be configured to be volatilized from the entire surface of the container.
[0022]
A packaging container for storing tablets held inside and on the surface of a molded substrate made of a sublimable substance such as a room temperature volatile insect repellent or other room temperature volatile chemical stock solutions in the form of a container for insect pests for clothing pests A non-woven fabric used on most of both sides Made of paper Oily substance Including Sublimation of sublimable substances when composed of a breathable material that can be immersed and retained Volatilization The gas easily permeates and cannot be volatilized constantly over a long period of time, and the sublimable substance disappears quickly. Therefore, in the present invention, non-woven fabric or paper Consist of Sublimation of sublimable substances on part of the inner surface of the breathable material Volatilization In order to adjust the amount of gas permeation, it is a resin containing polypropylene (PP), polyethylene (PE) or the like, or a material further containing pigments, dyes, etc. Sublimation of a sublimable substance by forming a gas permeation suppression layer by laminating, coating, or printing in an arbitrary shape so as to cover 80% Volatilization Adjust the gas permeation amount. In addition, gas can be laminated, coated or printed on the entire inner surface of the breathable material to an arbitrary thickness so that it can be permeated using a resin having breathability, or a material further containing pigments, dyes, etc. Sublimation of sublimable substances by forming a permeation suppression layer Volatilization It is also possible to arbitrarily suppress and adjust the gas permeation amount.
As will be apparent from the examples described later, sublimation of a sublimable substance. Volatilization Since the permeation amount of gas to the breathable material is affected by the basis weight of the breathable material, the coating ratio of the gas permeation suppression layer to the inner surface may be set according to the basis weight of the breathable material.
[0023]
Although the form of the packaging container of the insect pest for clothing pests of the present invention can be produced in any form, a preferred form will be described with reference to FIGS.
In the figure, 1 is a tablet in which a room temperature volatile insect repellent is contained and held in a molding substrate of a sublimable substance, and this tablet 1 is a
Of course, the pattern of the gas permeation suppression layer may be arbitrary. In addition, instead of the resin film, a transparent resin plate is formed so as to form a recessed portion for housing the tablet, and a breathable material is used so that the surface on which the gas permeation suppression layer is formed becomes the inner surface. A structure in which a container having a gas permeation suppression layer formed on the inner surface of the tablet housing part may be formed from a breathable material, and a transparent resin film or plate is attached to the opening of the container. It is good.
[0024]
【Example】
EXAMPLES Hereinafter, although an Example is shown and this invention is demonstrated more concretely, it cannot be overemphasized that this invention is not limited to the following Example.
[0025]
A volatilization sublimation test was conducted using the breathable material having the breathability and easily impregnating and holding the liquid substance with respect to the following drugs shown in Table 1 in which the sublimable substance and the room temperature volatile insecticide were combined.
Comparative Example 1: A tablet obtained by impregnating 2 g of Sansaburi with 60 mg of empentrin has an area of 25 cm. 2 (5 × 5 cm), basis weight 200 g / m 2 A comparative example 1 was prepared by storing in a bag composed of a breathable material made of PP nonwoven fabric and a film having gas barrier properties, and sublimating and evaporating.
Comparative Example 2: Similarly, a tablet in which 60 g of empentrin was impregnated into 2 g of sunsabry was measured with an area of 25 cm. 2 (5 × 5 cm), basis weight 250 g / m 2 A comparative example 2 was prepared by storing in a bag composed of a breathable material made of PP nonwoven fabric and a film having a gas barrier property and sublimating and evaporating.
Example 1: The same tablet as above, 50% inside touching the tablet, and an area of 25 cm laminated with a PP film (hereinafter the same) 2 (5 × 5 cm), basis weight 200 g / m 2 Example 1 was configured to be stored in a bag composed of a breathable material made of PP nonwoven fabric and a film having a gas barrier property and sublimated and volatilized.
Example 2: An area of 25 cm in which the same tablet as above was laminated with 75% of the inside touching the tablet 2 (5 × 5 cm), basis weight 200 g / m 2 Example 2 was configured to be contained in a bag composed of a breathable material made of PP nonwoven fabric and a film having gas barrier properties and sublimated and volatilized.
Example 3: An area of 25 cm in which the same tablet as above was laminated with 50% of the inside touching the tablet 2 (5 × 5 cm), basis weight 250 g / m 2 Example 3 is a material that is housed in a bag composed of a breathable material made of PP nonwoven fabric and a film having a gas barrier property and is sublimated and vaporized.
Comparative Example 3: The same tablet as above, with an area of 25 cm 2 (5 × 5 cm), basis weight 10 g / m 2 A comparative example 3 was prepared by storing in a bag composed of a breathable material made of PP nonwoven fabric and a film having a gas barrier property and sublimating and evaporating.
Comparative Example 4: Same tablet as above, area 25cm 2 (5 × 5 cm), basis weight 650 g / m 2 Comparative Example 4 was prepared such that it was stored in a bag composed of a breathable material made of PP nonwoven fabric and a film having a gas barrier property and sublimated.
[Table 1]
(Test method)
The wool muslin cloth was stored almost fully in a drawer with a volume of about 50 liters, and the insect repellent for clothing of each prescription example was installed on the upper part. The insect repellent for clothing was collected periodically, and the sublimation amount was determined from the measured weight and the weight at the time of sample preparation. Table 2 and FIG. 4 show the remaining amount of the sublimation agent over time.
[Table 2]
The amount of chemical volatilization was determined from the amount of insecticide remaining and the amount of insecticide at the time of sample preparation. Table 3 and FIG. 5 show changes with time of the amount of the insect repellent remaining.
[Table 3]
(Test results)
As is clear from the results shown in Table 2 and FIG. 4, the sublimation speed was different depending on the basis weight of the nonwoven fabric and the lamination ratio. When comparing Comparative Example 1 and Comparative Example 2, the sublimation rate is slower in Comparative Example 2 having a larger basis weight of the nonwoven fabric. In Comparative Example 1, Example 1, and Example 2, the non-woven fabric areas coated with the laminate are 0%, 50%, and 75%, but the sublimation speed is slow according to the coated area.
On the other hand, as is clear from the results shown in Table 3 and FIG. 5, in Comparative Example 1, Example 1, and Example 2 having the same basis weight, and Comparative Example 2 and Example 3, the volatilization of the room temperature volatile insecticide was Each shows the same volatilization tendency.
From the two points of the sublimation rate of the sublimation agent and the volatilization rate of the room temperature volatile insecticide, when Example 2 and Example 3 are compared, the volatilization rate of the room temperature volatile insecticide differs, but the sublimation rate of the sublimation agent is approximately The result is equal. Therefore, it is possible to arbitrarily set the sublimation rate of the sublimation agent and the volatilization rate of the room temperature volatile insecticide by coating the nonwoven fabric with an arbitrary basis weight at an arbitrary ratio. Further, in Comparative Example 3 in which the basis weight of the nonwoven fabric was particularly small, the chemical solution could not be sufficiently retained, and the insect repellent oozed out on the nonwoven fabric surface adhered to the wool muslin fabric, and the remaining amount was reduced in a short period of time. On the other hand, in Comparative Example 4 in which the basis weight of the nonwoven fabric was large, both the insect repellent and the sublimation agent had a very small decrease amount, and did not fulfill the function as the insect repellent for clothes.
[0029]
【The invention's effect】
As described above, according to the insect pest for clothing pests of the present invention, a tablet comprising a combination of a liquid room temperature volatile insecticide and an odorless or slightly odorous sublimation substance containing and retaining the room temperature volatile insecticide. Partly made of a transparent resin film or plate, and the other part is non-woven fabric or paper Consist of, Liquid substance Including With breathable material There And sublimation of a sublimable substance on at least a part of its inner surface Volatilization From a breathable material with a gas permeation suppression layer that suppresses gas permeation Composed In the volatilization process, the room temperature volatile insect repellent exudes to the tablet surface along with the sublimation substance volatilization and remains little by little. A part that can be transferred and impregnated with a room temperature volatile insect repellent other than the gas permeation suppression layer formed on the inner surface, or a breathable material that has been processed so that the room temperature volatile insect repellent can be transferred even if a gas permeation suppression layer is formed. From the entire inner surface, gradually impregnated and transferred to the entire surface of the breathable material, and smoothly spreads the room temperature volatile insecticide over a wide volatilization area to maintain the prescribed insecticidal efficacy over a long period of time. Can be released slowly. On the other hand, the permeation of the sublimable substance is sublimated on the inner surface of the breathable material. Volatilization Sublimation of sublimable substances because it is suppressed by the gas permeation suppression layer formed for gas permeation adjustment Volatilization The gas gradually evaporates and the prescribed insecticidal power is maintained over a long period of time, and the difference between the sublimation rate of the sublimable substance and the volatilization rate of the room temperature volatile insecticide is adjusted. Volatilization of the volatile insect repellent can be completed almost simultaneously. Further, by visually observing the sublimation disappearance state of the sublimable substance through a transparent resin film or plate-like body constituting a part of the container, the medicinal residual state and the end point can be clearly recognized.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an example of a container form of an insect repellent for clothing pests according to the present invention.
FIG. 2 is a partially broken plan view of the insect repellent container shown in FIG.
FIG. 3 is a longitudinal sectional view of the insect repellent container shown in FIG.
FIG. 4 is a graph showing changes over time in the residual amount of sublimation agents in insect repellents for clothing pests of various formulations.
FIG. 5 is a graph showing the change over time of the amount of insect repellent remaining in various pesticide insecticides for clothing.
[Explanation of symbols]
1 tablet, 2 transparent resin film, 3 breathable material, 4 gas permeation suppression layer
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP09916994A JP3660694B2 (en) | 1994-04-14 | 1994-04-14 | Insecticide for clothing pests |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP09916994A JP3660694B2 (en) | 1994-04-14 | 1994-04-14 | Insecticide for clothing pests |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07285805A JPH07285805A (en) | 1995-10-31 |
| JP3660694B2 true JP3660694B2 (en) | 2005-06-15 |
Family
ID=14240155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP09916994A Expired - Lifetime JP3660694B2 (en) | 1994-04-14 | 1994-04-14 | Insecticide for clothing pests |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3660694B2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002029907A (en) * | 2000-07-13 | 2002-01-29 | Fumakilla Ltd | Moth-controlling agent for clothes |
| US7528081B2 (en) | 2004-02-20 | 2009-05-05 | Sumitomo Chemical Company, Limited | Fabric protectant |
| JP2006296351A (en) * | 2005-04-22 | 2006-11-02 | Dainippon Jochugiku Co Ltd | Insect-proof agent |
| WO2006135028A1 (en) * | 2005-06-15 | 2006-12-21 | Central Research Institute Of Electric Power Industry | Method of feeding microbial activity controlling substance, apparatus therefor, and making use of the same, method of environmental cleanup and bioreactor |
| JP4829558B2 (en) * | 2005-07-22 | 2011-12-07 | 大日本除蟲菊株式会社 | Insect repellent |
| JP5892441B2 (en) * | 2012-02-29 | 2016-03-23 | 株式会社吉野工業所 | Cap body |
-
1994
- 1994-04-14 JP JP09916994A patent/JP3660694B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07285805A (en) | 1995-10-31 |
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