JP6841460B1 - 腹足類忌避フィルム及び植物の栽培方法 - Google Patents
腹足類忌避フィルム及び植物の栽培方法 Download PDFInfo
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/34—Shaped forms, e.g. sheets, not provided for in any other sub-group of this main group
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M29/00—Scaring or repelling devices, e.g. bird-scaring apparatus
- A01M29/30—Scaring or repelling devices, e.g. bird-scaring apparatus preventing or obstructing access or passage, e.g. by means of barriers, spikes, cords, obstacles or sprinkled water
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G13/00—Protecting plants
- A01G13/10—Devices for affording protection against animals, birds or other pests
- A01G13/105—Protective devices against slugs, snails, crawling insects or other climbing animals
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/002—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing a foodstuff as carrier or diluent, i.e. baits
- A01N25/008—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing a foodstuff as carrier or diluent, i.e. baits molluscicidal
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
- A01N59/06—Aluminium; Calcium; Magnesium; Compounds thereof
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01P—BIOCIDAL, PEST REPELLANT, PEST ATTRACTANT OR PLANT GROWTH REGULATORY ACTIVITY OF CHEMICAL COMPOUNDS OR PREPARATIONS
- A01P17/00—Pest repellants
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01P—BIOCIDAL, PEST REPELLANT, PEST ATTRACTANT OR PLANT GROWTH REGULATORY ACTIVITY OF CHEMICAL COMPOUNDS OR PREPARATIONS
- A01P9/00—Molluscicides
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- Insects & Arthropods (AREA)
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- Food Science & Technology (AREA)
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Abstract
Description
本発明の第1実施形態に係る腹足類忌避フィルム(以下、単に忌避フィルムと記載することがある)は、無機充填剤及び熱可塑性樹脂を含有する無機充填剤層を少なくとも備える。無機充填剤層は、最外層である。無機充填剤は、炭酸カルシウム粒子を含む。本発明の忌避フィルムにおける無機充填剤の含有割合は、50.0質量%超である。本発明の忌避フィルムの密度は、1.05g/cm3以上1.25g/cm3以下である。本発明の忌避フィルムは、腹足類による食害を抑制できる。
無機充填剤層は、無機充填剤及び熱可塑性樹脂を含有する。無機充填剤層において、無機充填剤は、熱可塑性樹脂により構成されるマトリックスに分散している。
無機充填剤は、炭酸カルシウム粒子を含む。ここで、無機充填剤として使用される炭酸カルシウム粒子は、入手元によって純度が大きく異なる。詳しくは、無機充填剤として使用される炭酸カルシウム粒子の多くは、鉱物資源として得られた炭酸カルシウム鉱石を精製せずにそのまま粒子化したものである。そのため、炭酸カルシウム粒子は、産地によって純度が大きく異なる。例えば、産地によっては、炭酸カルシウムの含有割合が70質量%程度である低純度の炭酸カルシウム粒子が存在する。一方、食品用及び医薬品用の炭酸カルシウム粒子として、化学合成により得られた高純度の炭酸カルシウム粒子も存在する。
無機充填剤層が含有する熱可塑性樹脂としては、例えば、ポリオレフィン樹脂、ABS樹脂、ポリアミド樹脂、ポリスチレン樹脂及びポリエステル樹脂(例えば、ポリエチレンテレフタレート樹脂及びポリブチレンテレフタレート樹脂)が挙げられる。
無機充填剤層は、無機充填剤以外の他の添加剤を更に含有していてもよい。他の添加剤としては、例えば、カップリング剤、潤滑剤、フィラー分散剤、静電防止剤、酸化防止剤、熱安定剤、紫外線吸収剤、及び耐候安定剤が挙げられる。
樹脂層は、熱可塑性樹脂を含有する層である。樹脂層の厚さの比率としては、本発明の忌避フィルムの全体厚さに対して、2.0%以上20.0%以下であり、4.0%以上10.0%以下が好ましい。樹脂層の厚さの比率を2.0%以上とすることで、本発明の忌避フィルムの成形性を向上できる。樹脂層の厚さの比率を20.0%以下とすることで、本発明の忌避フィルムにおける無機充填剤の含有割合を50.0質量%超に調整し易くなる。
本発明の忌避フィルムは、例えば、インフレーション法により製造できる。詳しくは、本発明の忌避フィルムが単層である場合、無機充填剤層を形成するための材料として、無機充填剤及び熱可塑性樹脂を含有する無機充填剤層形成用材料を用意する。そして、リング状のダイをセットした押出機により、無機充填剤層形成用材料を押し出す。得られた円筒状の押出物の内部に空気を送り込んで冷却し、その後、裁断することにより、単層の本発明の忌避フィルムを得ることができる。
本発明の第2実施形態に係る植物の栽培方法は、第1実施形態に係る忌避フィルムを用いる。本発明の植物の栽培方法は、腹足類による食害を抑制できる。本発明の植物の栽培方法は、例えば、穀物、野菜及びキノコ類の栽培方法として用いることができる。本発明の植物の栽培方法は、腹足類による食害を受け易く、かつ商品価値の高い作物(例えば、イチゴ、キャベツ、シイタケ及びアスパラ)の栽培方法として好適である。
ポリエチレン樹脂ペレット30質量部及び炭酸カルシウム粒子70質量部を二軸混練機によって混錬した後にチップ化することにより、マスターバッチ(炭酸カルシウム粒子70質量%)を得た。次に、マスターバッチ75質量部及びポリエチレン樹脂ペレット25質量部を混合することで、無機充填剤層形成用材料を得た。
11,21、31 無機充填剤層
12,22,32 樹脂層
Claims (7)
- 無機充填剤及び熱可塑性樹脂を含有する無機充填剤層を少なくとも備える腹足類忌避フィルムであって、
前記無機充填剤層は、最外層であり、
前記無機充填剤は、炭酸カルシウム粒子を含み、
前記腹足類忌避フィルムにおける前記無機充填剤の含有割合は、50.0質量%超であり、
前記腹足類忌避フィルムの密度は、1.05g/cm3以上1.25g/cm3以下である、腹足類忌避フィルム。 - 前記熱可塑性樹脂は、ポリオレフィン樹脂を含む、請求項1に記載の腹足類忌避フィルム。
- 前記炭酸カルシウム粒子の最大粒子径は、20μm以下である、請求項1又は2に記載の腹足類忌避フィルム。
- 請求項1から3の何れか一項に記載の腹足類忌避フィルムを用いる、植物の栽培方法。
- 前記腹足類忌避フィルムをマルチングフィルムとして用いる、請求項4に記載の植物の栽培方法。
- 帯状の前記腹足類忌避フィルムで前記植物の周囲の土壌を囲う、請求項4に記載の植物の栽培方法。
- 有機農法である、請求項4から6の何れか一項に記載の植物の栽培方法。
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PCT/JP2021/022337 WO2021251492A1 (ja) | 2020-06-12 | 2021-06-11 | 腹足類忌避フィルム及び植物の栽培方法 |
US18/001,547 US20230225316A1 (en) | 2020-06-12 | 2021-06-11 | Gastropod repellent film and plant cultivation method |
CN202180042252.9A CN115697051A (zh) | 2020-06-12 | 2021-06-11 | 腹足类动物防治膜和植物的栽培方法 |
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