JP2017114821A - Mollusk evasion tape - Google Patents
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Abstract
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本発明は軟体動物用忌避テープに関し、更に詳しくは、植物の新芽、花、葉、果実などに食害を与えるナメクジ類、カタツムリ類などの腹足類に属する軟体動物に対する忌避テープに関する。 The present invention relates to a repellent tape for molluscs, and more particularly to a repellent tape for molluscs belonging to gastropods such as slugs, snails, etc. that cause damage to plant shoots, flowers, leaves, fruits and the like.
野菜、食用きのこ、花木など多くの植物が露地栽培やハウス栽培などで栽培されている。これらの植物は、新芽、花、葉、果実などがナメクジやカタツムリの被害にあうことが多い。特にハウス栽培では散水の頻度が高く、湿潤した環境下でナメクジやカタツムリなどが寄生し、特に新芽のときに食害を受けるという問題がある。
これらの食害を防ぐ方法として、パラホルムアルデヒドやメタアルデヒドを有効成分とする合成薬剤が知られている。しかし、この薬剤は、害虫の駆除、殺虫を目的としたもので、薬効が強い反面、植物に付着した場合、植物を痛める可能性があること、散布に際しては、安全性の面から人体や家畜、ペットなどへの影響を避ける必要性があること、散水や降雨によって洗い流され効果が持続しないこと、などの多くの問題がある。
Many plants such as vegetables, edible mushrooms, flowering trees are cultivated in outdoor cultivation and house cultivation. In these plants, shoots, flowers, leaves and fruits are often damaged by slugs and snails. Especially in house cultivation, the watering frequency is high, and slugs, snails, etc. are parasitized in a humid environment, and there is a problem that they are damaged by shoots.
Synthetic drugs containing paraformaldehyde or metaldehyde as active ingredients are known as methods for preventing these food damages. However, this drug is intended for the control of insect pests and insecticides, but it has a strong medicinal effect, but if it adheres to plants, it may damage the plants. There are many problems, such as the necessity of avoiding the influence on pets and the fact that the effect is not sustained by being washed away by watering or raining.
この問題を解決するために、例えば、ツバキ科植物の種子などから植物油を搾油した後の絞り粕がナメクジやカタツムリに対して忌避効果があり、絞り粕を造粒したものを忌避剤として使用することも知られている（特許文献１）。この忌避剤の薬効成分はサポニンであると考えられている。しかし、これら固体状の搾油絞り粕は、風による飛散や土中への埋没による薬効の低下が起こる。また、その造粒物は、土中への埋没の他、施薬の偏りによる効果の不均一が起こる。更に、経時による薬効の低下も大きく、特に降雨によって、薬効成分が流出してしまい、その後の効果の低下が大きい。 In order to solve this problem, for example, the squeezed rice cake after squeezing the vegetable oil from the seeds of the camellia plant has a repellent effect on slugs and snails, and the granulated squeezed cocoon is used as a repellent. This is also known (Patent Document 1). The medicinal component of this repellent is considered to be saponin. However, these solid squeezed squeezed troughs suffer from a decrease in medicinal effects due to scattering by the wind and burial in the soil. In addition, the granulated product is uneven in effect due to the unevenness of the applied medicine as well as being buried in the soil. Furthermore, the medicinal effect is greatly reduced with time. Especially, the medicinal component is discharged due to rain, and the subsequent effect is greatly reduced.
また、粘着剤を裏面に塗布した合成樹脂のテープやシートにサポニンを付着させることが提案されている（特許文献２）。しかし、合成樹脂のテープを表面として用いる場合は薬効の発揮が不十分であり、サポニンの付着面を表面として用いる場合は、前記の場合と同様に経時による薬効の低下や、降雨や散水後の薬効の劣化が大きい。 In addition, it has been proposed that saponin is attached to a synthetic resin tape or sheet coated with an adhesive on the back surface (Patent Document 2). However, when the synthetic resin tape is used as the surface, the medicinal effect is insufficient. Degradation of medicinal effect is large.
更に、上記の諸課題を解決する手段として、ツバキ科植物の種子を搾油した搾油粕からの抽出物を、水系樹脂、例えば水溶性アクリル樹脂、水溶性ポリエステル、水溶性ポリウレタン、水溶性アルキド樹脂、水溶性エポキシ樹脂などに含有させたコーティング液をシート状部材に塗布し、乾燥及び／又は熱処理したり、樹脂を架橋など硬化させて強度や耐水性を改善した軟体動物忌避シートが開示されている（特許文献３）。しかし、この忌避シートは製造工程が煩雑であり、また硬化樹脂は剛性が高く取扱い性が悪いだけでなく、地面への馴染みもないために、薬効の発揮も悪い。また水系樹脂の硬化物は硬化過程で、分散剤である水分の蒸発が起こるため、水による微細な小孔が表面に発生し、初期の薬効は発揮されるが、降雨や散水後の効果の低下が大きく、持続性が十分とは云い難い。 Furthermore, as means for solving the above-mentioned problems, an extract from the oil lees squeezed with camellia plant seeds is used as an aqueous resin, for example, a water-soluble acrylic resin, a water-soluble polyester, a water-soluble polyurethane, a water-soluble alkyd resin, A mollusc repellent sheet is disclosed in which a coating solution contained in a water-soluble epoxy resin or the like is applied to a sheet-like member and dried and / or heat-treated, or the resin is cured by crosslinking or the like to improve strength and water resistance. (Patent Document 3). However, this repellent sheet has a complicated manufacturing process, and the cured resin not only has high rigidity and poor handleability, but also has no familiarity with the ground, and therefore has a poor medicinal effect. In addition, the water-based resin cured product evaporates water, which is a dispersant, during the curing process, resulting in the formation of fine pores on the surface and the initial medicinal effect, but the effect after rain and water spraying. The decline is large and the sustainability is not enough.
本発明は、かかる実情に鑑み、上記従来技術の問題点が解消され、散水や降雨による薬効の低下がなく、柔軟性に富み、果菜類の幹や枝に巻き付けることができるので薬効が効果的に発揮され、また、サポニンとの相溶性の低い樹脂を用いた場合には、時間の経過とともにサポニンが樹脂フィルム内部から表面に移行（マイグレート）し、長期に亘って均一な薬効を発揮し、更に、押出成形や押出ラミネート加工により容易に製造可能な軟体動物用忌避テープを提供することを目的とするものである。 In view of such circumstances, the present invention eliminates the above-mentioned problems of the prior art, has no decrease in medicinal effect due to watering or rainfall, is highly flexible, and can be wrapped around the trunk or branch of fruit vegetables, so that the medicinal effect is effective. In addition, when a resin with low compatibility with saponin is used, saponin migrates from the inside of the resin film to the surface with the passage of time, and exhibits a uniform medicinal effect over a long period of time. It is another object of the present invention to provide a mollusc repellent tape that can be easily manufactured by extrusion molding or extrusion laminating.
本発明者らは鋭意研究の結果、サポニンを含有する熱可塑性樹脂フィルムからなる軟体動物用忌避テープ、又は、該フィルムを基材上に積層した軟体動物用忌避テープが上記課題を悉く解消し得ることを見い出し、本発明を完成するに至った。 As a result of diligent research, the present inventors have found that a repellent tape for mollusks comprising a thermoplastic resin film containing saponin or a repellent tape for mollusks in which the film is laminated on a substrate can solve the above-mentioned problems. As a result, the present invention has been completed.
本発明は、下記を特徴とするものである。
１．サポニンを含有する熱可塑性樹脂フィルムからなることを特徴とする軟体動物用忌避テープ。
２．熱可塑性樹脂フィルムの厚さが３〜８０μｍであることを特徴とする上記の軟体動物用忌避テープ。
３．熱可塑性樹脂フィルムの幅が０．５〜３０ｃｍであることを特徴とする上記の軟体動物用忌避テープ。
４．熱可塑性樹脂がポリエチレンであることを特徴とする上記の軟体動物用忌避テープ。
５．熱可塑性樹脂が低密度ポリエチレンであることを特徴とする上記の軟体動物用忌避テープ。
６．熱可塑性樹脂フィルムのいずれかの面に粘着剤層が設けられていることを特徴とする上記の軟体動物用忌避テープ。
７．上記のサポニンを含有する熱可塑性樹脂フィルムが基材層上に積層されていることを特徴とする軟体動物用忌避テープ。
８．基材層が紙であることを特徴とする上記の軟体動物用忌避テープ。
９．基材層の厚さが１０〜１５０μｍであることを特徴とする上記の軟体動物用忌避テープ。
１０．基材層に粘着剤層が設けられていることを特徴とする上記の軟体動物用忌避テープ。
１１．上記の軟体動物用忌避テープを果菜類の幹又は枝に巻き付けることを特徴とす軟体動物用忌避テープの使用方法。
The present invention is characterized by the following.
1. A repellent tape for mollusks, comprising a thermoplastic resin film containing saponin.
2. The above-mentioned mollusc repellent tape, wherein the thermoplastic resin film has a thickness of 3 to 80 µm.
3. The above-mentioned repellent tape for mollusks, wherein the width of the thermoplastic resin film is 0.5 to 30 cm.
4). The repellent tape for mollusks as described above, wherein the thermoplastic resin is polyethylene.
5. The repellent tape for mollusks as described above, wherein the thermoplastic resin is low density polyethylene.
6). The repellent tape for mollusks as described above, wherein an adhesive layer is provided on any surface of the thermoplastic resin film.
7). A repellent tape for mollusks, wherein the thermoplastic resin film containing the saponin is laminated on a base material layer.
8). The above-mentioned mollusc repellent tape, wherein the base material layer is paper.
9. The repellent tape for mollusks as described above, wherein the base material layer has a thickness of 10 to 150 µm.
10. The above-mentioned repellent tape for mollusks, wherein the base material layer is provided with an adhesive layer.
11. A method of using a repellent tape for mollusks, characterized in that the repellent tape for molluscs is wrapped around the trunk or branch of fruit vegetables.
本発明の軟体動物用忌避テープ（以下、単に忌避テープと記す場合がある）によれば、風による飛散や土中への埋没による薬効の低下が起きることがなく、また、散水や降雨によってサポニンが洗い流されることがないので、薬効が長時間に亘って持続する。 According to the repellent tape for mollusks of the present invention (hereinafter sometimes referred to simply as “repellent tape”), there is no decrease in medicinal effect due to scattering by wind or burial in the soil, and saponin is caused by water spray or rain. Is not washed away, so that the medicinal effect lasts for a long time.
また、樹脂を架橋したり熱硬化しないので、柔軟性に富み、果菜類の幹や枝に巻き付けることができるので薬効が効果的に発揮される。 In addition, since the resin is not cross-linked or thermoset, it is highly flexible and can be wound around the trunk or branch of fruit vegetables, so that the medicinal effect is effectively exhibited.
熱可塑性樹脂としてポリエチレンや低密度ポリエチレンは、サポニンとの相溶性が良くないので、フィルム中からサポニンが移行（マイグレート）し、長期間に亘って均一な忌避効果を発揮し持続することができる。 Polyethylene and low-density polyethylene as thermoplastic resins are not compatible with saponin, so saponin migrates from the film (migrate) and can maintain a uniform repellent effect over a long period of time. .
また、基材層と積層することにより忌避テープの製造が容易となり、また、強度も大きくなる。基材層として紙を使用すると紙の繊維と繊維との隙間からサポニンが放出され薬効を発揮するので好都合である。 In addition, the lamination with the base material layer facilitates the manufacture of the repellent tape and increases the strength. Use of paper as the substrate layer is advantageous because saponin is released from the gap between the fibers of the paper and exhibits a medicinal effect.
本発明で用いられるサポニンは、サポゲニンと糖から構成される配糖体で、サボンソウなど種々の植物に含まれる。純粋のものは白色の粉末で親水性、親油性の両新媒性の物質であるが、ツバキ、茶、サザンカなどツバキ科植物の種子の搾油後の搾油粕からも抽出して得られる粉末が使用できる。また、市販品としては、東京化成工業株式会社から商品名「サポニン」として販売されており、これを使用することができる。 The saponins used in the present invention are glycosides composed of sapogenins and sugars, and are included in various plants such as Soybean. The pure one is a white powder, a hydrophilic and lipophilic amphoteric substance, but the powder obtained by extracting it from the oil mill after the extraction of camellia plant seeds such as camellia, tea, sasanqua, etc. Can be used. Moreover, as a commercial item, it is sold by Tokyo Chemical Industry Co., Ltd. under the trade name “Saponin” and can be used.
サポニンを含有する熱可塑性樹脂としては、フィルムにした場合に、果菜類の幹や枝に巻き付ける観点からは柔軟性に富むものが好ましい。
また、サポニンをフィルム内から表面へ移行させ徐放させる観点からは、サポニンと相溶性が良くないことが好ましい。このような熱可塑性樹脂としては、ポリエチレン、特に低密度ポリエチレン、線状低密度ポリエチレン、これらの共重合体などのポリオレフィン系樹脂が好ましい。ポリオレフィン系樹脂は、環境への負荷が小さく、安価である点でも好ましい。更に、ポリエステル系エラストマーも使用できる。また、一層環境にやさしく低負荷の観点からは、ポリ乳酸、ポリアミド１１、ポリヒドロキシ酪酸などの生分解プラスチックやバイオマスプラスチックも使用可能である。
As the thermoplastic resin containing saponin, when it is made into a film, a resin rich in flexibility is preferable from the viewpoint of winding around a trunk or branch of fruit vegetables.
Moreover, it is preferable that the compatibility with saponin is not good from the viewpoint of transferring saponin from the film to the surface for sustained release. As such a thermoplastic resin, polyolefin resins such as polyethylene, particularly low density polyethylene, linear low density polyethylene, and copolymers thereof are preferable. Polyolefin resins are preferred because they have a low environmental impact and are inexpensive. Furthermore, polyester elastomers can also be used. Further, from the viewpoint of further environmental friendliness and low load, biodegradable plastics such as polylactic acid, polyamide 11 and polyhydroxybutyric acid and biomass plastics can be used.
サポニンを樹脂に配合する量は、サポニンの量が多くなると忌避効果は大きくなるがフィルム成形性は低下する傾向がある。従って、所望の忌避効果と、樹脂の種類や成形方法などを勘案して適宜決定される。通常、重量基準で４〜３５％が好ましく、１５〜３５％がより好ましく、２０〜３５％が更に好ましい。４％未満では忌避効果が十分でなく、３５％を超えるとサポニンの吸湿性によってフィルム成形時や加工時または基材上への押出ラミネート加工時に水分による発泡が起こり、加工が難しくなる場合がある。従って、サポニンやサポニン配合樹脂を事前に十分乾燥しておくことによって３５％を超えて多量に配合することも可能である。 The amount of saponin blended in the resin tends to decrease the film formability although the repellency increases as the amount of saponin increases. Therefore, it is appropriately determined in consideration of the desired repellent effect, the type of resin, the molding method, and the like. Usually, 4-35% is preferable on a weight basis, 15-35% is more preferable, and 20-35% is still more preferable. If it is less than 4%, the repellent effect is not sufficient, and if it exceeds 35%, foaming due to moisture may occur during film forming, processing, or extrusion lamination onto a substrate due to the hygroscopicity of saponin, which may make processing difficult. . Therefore, it is possible to add a large amount exceeding 35% by sufficiently drying saponin or a saponin-containing resin in advance.
サポニンを含有する樹脂には、必要に応じ、更に酸化防止剤、紫外線吸収剤、光安定剤、帯電防止剤、可塑剤、充填剤などの添加剤を添加することができる。
サポニンを含有する樹脂に充填剤を配合することにより、フィルム中からのサポニンの透過、移行、放出を調節し、忌避効果を発揮する期間を調節することができる。このような充填剤としては、重質炭酸カルシウム、軽質炭酸カルシウム、珪藻土、シリカ、タルク、セリサイト等があげられる。
If necessary, an additive such as an antioxidant, an ultraviolet absorber, a light stabilizer, an antistatic agent, a plasticizer, and a filler can be added to the saponin-containing resin.
By blending a saponin-containing resin with a filler, the permeation, migration and release of saponin from the film can be adjusted, and the period during which the repellent effect is exhibited can be adjusted. Examples of such fillers include heavy calcium carbonate, light calcium carbonate, diatomaceous earth, silica, talc, and sericite.
上記の如く、サポニン及び必要に応じ添加剤を含有する樹脂は、公知の方法でフィルム化されるが、押出成形が好ましい。また、必要に応じ、このフィルムを基材層上に積層することも可能で、積層方法としては押出ラミネート加工が好ましい。
基材層としては、紙、ポリエチレンなどのプラスチック製フィルム、プラスチック製フィルムの発泡体、天然繊維又は合成繊維製布帛、不織布などが使用可能であるが、これらの中では、紙、布帛、不織布が好ましく、特に、紙はサポニンを含有する熱可塑性樹脂との押出ラミネート加工性が良好である点で好ましい。これらを基材層とすることにより、繊維と繊維との隙間からサポニンが放出されるので、基材層と接する側からも忌避効果が得られるとともに、本発明の忌避テープを果菜類の幹や枝に巻き付けて使用する場合は、幹や枝の成長に合わせて、これらの基材層も伸張するので、幹や枝への追従姓が良好である。
As described above, the saponin and the resin containing an additive as necessary are formed into a film by a known method, but extrusion molding is preferred. Moreover, this film can also be laminated | stacked on a base material layer as needed, and an extrusion lamination process is preferable as a lamination | stacking method.
As the base material layer, paper, plastic film such as polyethylene, foam of plastic film, natural fiber or synthetic fiber fabric, non-woven fabric, etc. can be used. Among these, paper, fabric, non-woven fabric are used. In particular, paper is preferable in that it is excellent in extrusion laminate processability with a thermoplastic resin containing saponin. By using these as the base material layer, saponin is released from the gap between the fibers, so that a repellent effect can be obtained from the side in contact with the base material layer, and the repellent tape of the present invention can be used as a fruit vegetable trunk or When used by wrapping around a branch, these base material layers also expand as the trunk and branches grow, so that the surname following the trunk and branches is good.
本発明において、サポニンを含有する熱可塑性樹脂フィルムの厚さは特に制限されないが、余り厚すぎると忌避テープの幹や枝への巻き付けが困難となり、一方、余り薄すぎると強度が不十分となる傾向がある。従って、通常、３〜８０μｍ程度が好ましく、５〜５０μｍ程度がより好ましい。
また、サポニンを含有する熱可塑性樹脂フィルムの幅は特に制限されないが、余り大きすぎても余り小さすぎても、忌避テープの幹や枝への巻き付けが困難となる傾向がある。従って、通常、０．５〜３０ｃｍ程度が好ましく、２〜３０ｃｍ程度がより好ましい。また、大きめの幅として、巻き付ける幹や枝に合わせて適宜切断できるようにミシン目を入れておくのも好ましい。
また、基材層の厚みも余り厚すぎると忌避テープの幹や枝への巻き付けが困難となり、一方、余り薄すぎると強度が不十分となるので、通常、１０〜１５０μｍ程度が好ましく、より好ましくは１０〜１３０μｍである。
In the present invention, the thickness of the saponin-containing thermoplastic resin film is not particularly limited, but if it is too thick, it will be difficult to wrap the repellent tape around the trunk and branches, while if it is too thin, the strength will be insufficient. Tend. Therefore, generally, about 3-80 micrometers is preferable and about 5-50 micrometers is more preferable.
The width of the thermoplastic resin film containing saponin is not particularly limited, but if it is too large or too small, it tends to be difficult to wind the repellent tape around the trunk or branch. Therefore, generally about 0.5-30 cm is preferable and about 2-30 cm is more preferable. Moreover, it is also preferable to make a perforation as a large width so that it can be appropriately cut according to the trunk or branch to be wound.
In addition, if the thickness of the base material layer is too thick, it is difficult to wind the repellent tape around the trunk or branch. On the other hand, if the thickness is too thin, the strength is insufficient. Therefore, the thickness is usually preferably about 10 to 150 μm. Is 10 to 130 μm.
押出成形や押出ラミネート加工は、サポニンに熱をかけすぎると薬効を低下させたり、失効させたりするおそれがあるので、できるだけ低い温度で行うのが好ましく、例えばポリエチレンの場合は１７０〜２２０℃程度が適当である。必要に応じ、基材層にコロナ処理等を施してフィルムとの接着性を高めることができる。 Extrusion molding and extrusion laminating process may be performed at a temperature as low as possible since there is a risk that the saponin is excessively heated to reduce the medicinal effect or to be invalidated. For example, in the case of polyethylene, the temperature is about 170 to 220 ° C. Is appropriate. If necessary, the substrate layer can be subjected to corona treatment or the like to enhance the adhesion to the film.
また、サポニンを含有する熱可塑性樹脂フィルムは、細孔を設けることにより、フィルム内のサポニンの放出性や徐放性を高めることができる。
細孔は、サポニンを含有する熱可塑性樹脂フィルムを延伸したり、針で孔を開ける等により設けることができる。細孔は余り大きすぎると徐放性が期待できず、また、降雨や散水後に薬効が劣化し、忌避効果の持続性に問題が生じる虞れがある。従って、細孔は小さいほうが良く、通常、細孔の平均径は０．０２〜５μｍ程度が好ましく、０．１〜２μｍ程度がより好ましい。
Moreover, the thermoplastic resin film containing a saponin can improve the release | release property and sustained release property of the saponin in a film by providing a pore.
The pores can be provided by stretching a thermoplastic resin film containing saponin, opening a hole with a needle, or the like. If the pores are too large, sustained release cannot be expected, and the medicinal effect is deteriorated after raining or watering, which may cause a problem in the sustainability of the repellent effect. Therefore, it is better that the pores are small. Usually, the average diameter of the pores is preferably about 0.02 to 5 μm, more preferably about 0.1 to 2 μm.
本発明の忌避テープは、サポニンを含有する熱可塑性樹脂フィルムに、又は、基材層を有する場合は基材層にそれぞれ粘着剤層を設けるのが好ましい。
粘着剤としては、ゴム系、アクリル系、シリコーン系、ウレタン系等のいずれでも良くこれらの中では分解性が良い点でゴム系又はウレタン系が好ましい。
粘着剤層の厚さは、余り薄すぎると粘着力が不十分となり、一方、余り厚すぎると、たとえば、忌避テープを所望の形状に打ち抜くの際に粘着剤のはみ出しや打ち抜き不良が起こりやすく加工性が劣る傾向がある。従って、通常、２〜３０μｍ程度が好ましく、２〜２０μｍ程度がより好ましい。
The repellent tape of the present invention is preferably provided with a pressure-sensitive adhesive layer on the thermoplastic resin film containing saponin, or when the substrate layer has a base material layer.
The pressure-sensitive adhesive may be any of rubber-based, acrylic-based, silicone-based, urethane-based, and the like. Among these, a rubber-based or urethane-based adhesive is preferable because of its good degradability.
If the thickness of the pressure-sensitive adhesive layer is too thin, the adhesive strength becomes insufficient. On the other hand, if the thickness is too thick, for example, when the repellent tape is punched into a desired shape, the adhesive is likely to protrude or fail to punch. Tend to be inferior. Therefore, usually about 2-30 micrometers is preferable and about 2-20 micrometers is more preferable.
粘着剤層は、サポニンを含有する熱可塑性樹脂フィルム、又は、基材層上に、粘着剤を流延したり塗工することにより塗布し、乾燥することにより形成される。
塗布法としては、リバースコーティング、グラビアコーティング等のロールコーティング法、スピンコーティング法、スクリーンコーティング法、ディッピング法、スプレー法等が採用される。また、粘着剤層の上に、更に剥離紙などを積層して使用上の便宜を図ることができる。
The pressure-sensitive adhesive layer is formed by applying and drying a pressure-sensitive adhesive on a thermoplastic resin film containing a saponin or a base material layer, and drying.
As a coating method, a roll coating method such as reverse coating or gravure coating, a spin coating method, a screen coating method, a dipping method, a spray method, or the like is employed. Further, release paper or the like can be further laminated on the pressure-sensitive adhesive layer for convenience in use.
本発明の忌避テープは、ナメクジ等を忌避（近づくのを阻止）したい場所に配すれば良く、たとえば、鉢やプランター等に使用されるが、特に、果菜類の幹や枝に巻き付けることにより、直接的且つ効果的に忌避することができる。巻き付け方法としては、粘着剤層を有しない忌避テープは、果菜類の幹や枝に巻き付けた後、両端部をホッチキスで止めたり接着する方法、粘着剤層を有する忌避テープは、該粘着剤層により果菜類の幹や枝に貼着する方法等が採用できる。 The repellent tape of the present invention may be placed in a place where it is desired to avoid (prevent approach) slugs, etc., for example, it is used in pots, planters, etc. It can be avoided directly and effectively. As a winding method, the repellent tape having no pressure-sensitive adhesive layer is a method in which both ends are stapled or bonded after being wound around the trunk or branch of fruit vegetables, and the repellent tape having a pressure-sensitive adhesive layer is the pressure-sensitive adhesive layer. The method of sticking to the trunk and branch of fruit vegetables etc. can be employ | adopted.
以下、実施例及び比較例を挙げて本発明を更に詳細に説明するが、本発明はこれらにより何ら制限されるものではない。なお、忌避テープの忌避効果については下記の方法により評価した。
忌避効果の試験方法：
４０ｃｍ×４０ｃｍ×３０ｃｍ（高さ）の木製の箱の底に排水口を設け、その中央部に長さ３０ｃｍ×幅５ｃｍの忌避テープを用いて外側長さが３０ｃｍ、内側長さが２０ｃｍで幅５ｃｍの四角形枠状（ロ字状）の忌避テープを配置した。該枠状忌避テープの内側中央部には、軟体動物の誘引剤として約１０ｇの市販の油粕を置いた。また、該枠状忌避テープの外側には１０匹のナメクジを置き、温度２５℃、相対湿度６５％で６時間放置した。試験開始後３時間の時点で園芸用のジョウロで散水した。試験開始から１２時間経過後に、該枠状忌避テープの内側中央部に置いた油粕の上にいるナメクジの数を数えた。なお、ナメクジは農家のハウス畑の中で採取したものを用いた。
EXAMPLES Hereinafter, although an Example and a comparative example are given and this invention is demonstrated further in detail, this invention is not restrict | limited at all by these. The repellent effect of the repellent tape was evaluated by the following method.
Test method for repellent effect:
40cm x 40cm x 30cm (height) wooden box with a drain outlet at the bottom, 30cm long by 5cm wide repellent tape at the center, 30cm outside length and 20cm inside length A 5 cm square frame-shaped (b-shaped) repellent tape was placed. About 10 g of a commercially available oil candy was placed as an attractant for mollusks in the center of the inner side of the frame-shaped repellent tape. In addition, 10 slugs were placed outside the frame-shaped repellent tape and left for 6 hours at a temperature of 25 ° C. and a relative humidity of 65%. Water spraying was carried out with a gardening fountain at 3 hours after the start of the test. After 12 hours from the start of the test, the number of slugs on the oil bottle placed at the inner center of the frame-shaped repellent tape was counted. Slugs were collected from the farmer's house.
実施例１
線状低密度ポリエチレン（日本ポリエチレン株式会社製LLDPE ：ハーモレックス NH845N、比重：0.913 ）にサポニン（東京化成工業株式会社製 商品名：サポニン）を５重量％配合しペレット化した後、坪量８４ｇ（厚さ約１１０μｍ）の未晒しクラフト紙にサポニン配合の前記LLDPE 樹脂をT-ダイ押し出し機を用いてダイス温度２１０℃で押し出し、前記クラフト紙の片面にコロナ処理をしながら、ラミネート厚さ約２０μｍになるようラミネートし、更に、前記クラフト紙に乾燥後の厚さが５μｍになるようにゴム系粘着剤（トーヨーケム株式会社製 商品名：オリバインＢＰＳ５０１９ー１）を塗布量１５g ／ｍ2 でグラビアコーティングした後乾燥して軟体動物用忌避テープを作製した。
Example 1
After blending 5% by weight of saponin (trade name: saponin, manufactured by Tokyo Chemical Industry Co., Ltd.) into linear low density polyethylene (LLDPE manufactured by Nippon Polyethylene Co., Ltd .: Harmolex NH845N, specific gravity: 0.913), a basis weight of 84 g ( The LLDPE resin blended with saponin is extruded to a non-bleached kraft paper with a thickness of about 110 μm at a die temperature of 210 ° C. using a T-die extruder and a corona treatment is applied to one side of the kraft paper to a laminate thickness of about 20 μm. Further, a rubber adhesive (trade name: Olivevine BPS 5019-1 manufactured by Toyochem Co., Ltd.) is applied to the craft paper so that the thickness after drying is 5 μm, and gravure coating is applied at a coating amount of 15 g / m 2. And dried to produce a mollusc repellent tape.
実施例２
低密度ポリエチレン（住友化学株式会社製LDPE：スミカセン L405、比重：0.924 ）にサポニン（東京化成工業株式会社製 商品名：サポニン）を１０重量％配合しペレット化した後、実施例１と同様にして、未晒しクラフト紙にサポニン配合の前記LDPE樹脂をT-ダイ押し出し機を用いてダイス温度２１０℃で押し出し、前記クラフト紙の片面にコロナ処理をしながら、ラミネート厚さ約２０μｍになるようラミネートし、更に、前記クラフト紙に粘着剤層を設けて軟体動物用忌避テープを作製した。
Example 2
After blending 10% by weight of saponin (trade name: saponin, manufactured by Tokyo Chemical Industry Co., Ltd.) with low density polyethylene (LDPE: Sumikasen L405, manufactured by Sumitomo Chemical Co., Ltd., specific gravity: 0.924), the same as in Example 1 was performed. The LDPE resin containing saponin is extruded onto unbleached kraft paper using a T-die extruder at a die temperature of 210 ° C., and laminated to a laminate thickness of about 20 μm while corona treatment is applied to one side of the kraft paper. Furthermore, a repellent tape for molluscs was prepared by providing an adhesive layer on the kraft paper.
実施例３
線状低密度ポリエチレン（日本ポリエチレン株式会社製LLDPE ：ハーモレックス NH845N）にサポニン（東京化成工業株式会社製 商品名：サポニン）を１５重量％配合しペレット化した後、実施例１と同様にして、未晒しクラフト紙にサポニン配合の前記LLDPE 樹脂をT-ダイ押し出し機を用いてダイス温度２１０℃で押し出し、前記クラフト紙の片面にコロナ処理をしながら、ラミネート厚さ約２０μｍになるようラミネートし、更に、前記クラフト紙に粘着剤層を設けて軟体動物用忌避テープを作製した。
Example 3
After blending 15% by weight of saponin (trade name: saponin, manufactured by Tokyo Chemical Industry Co., Ltd.) into linear low density polyethylene (NLD, manufactured by Nippon Polyethylene Co., Ltd .: Harmolex NH845N), the same as in Example 1, The LLDPE resin blended with saponin on unbleached kraft paper is extruded at a die temperature of 210 ° C. using a T-die extruder, and laminated to a laminate thickness of about 20 μm while corona treatment on one side of the kraft paper. Furthermore, an adhesive layer was provided on the kraft paper to produce a mollusc repellent tape.
実施例４
線状低密度ポリエチレン（日本ポリエチレン株式会社製LLDPE ：ハーモレックス NH845N）にサポニン（東京化成工業株式会社製 商品名：サポニン）を２０重量％配合しペレット化した後、実施例１と同様にして、未晒しクラフト紙にサポニン配合の前記LLDPE 樹脂をT-ダイ押し出し機を用いてダイス温度２１０℃で押し出し、前記クラフト紙の片面にコロナ処理をしながら、ラミネート厚さ約２０μｍになるようラミネートし、更に、前記クラフト紙に粘着剤層を設けて軟体動物用忌避テープを作製した。
Example 4
After blending 20% by weight of saponin (trade name: saponin, manufactured by Tokyo Chemical Industry Co., Ltd.) into linear low density polyethylene (NLD, manufactured by Nippon Polyethylene Co., Ltd .: Harmolex NH845N), the same as in Example 1, The LLDPE resin blended with saponin on unbleached kraft paper is extruded at a die temperature of 210 ° C. using a T-die extruder, and laminated to a laminate thickness of about 20 μm while corona treatment on one side of the kraft paper. Furthermore, an adhesive layer was provided on the kraft paper to produce a mollusc repellent tape.
実施例５
低密度ポリエチレン（住友化学株式会社製LDPE：スミカセン L405、比重：0.924 ）にサポニン（東京化成工業株式会社製 商品名：サポニン）を３０重量％配合しペレット化した後、実施例１と同様にして、未晒しクラフト紙にサポニン配合の前記LDPE樹脂をT-ダイ押し出し機を用いてダイス温度２１０℃で押し出し、前記クラフト紙の片面にコロナ処理をしながら、ラミネート厚さ約２０μｍになるようラミネートし、更に、前記クラフト紙に粘着剤層を設けて軟体動物用忌避テープを作製した。
Example 5
After blending 30% by weight of saponin (trade name: saponin, manufactured by Tokyo Chemical Industry Co., Ltd.) into low density polyethylene (LDPE: Sumikasen L405, manufactured by Sumitomo Chemical Co., Ltd., specific gravity: 0.924), pelletization was carried out in the same manner as in Example 1. The LDPE resin containing saponin is extruded onto unbleached kraft paper using a T-die extruder at a die temperature of 210 ° C., and laminated to a laminate thickness of about 20 μm while corona treatment is applied to one side of the kraft paper. Furthermore, a repellent tape for molluscs was prepared by providing an adhesive layer on the kraft paper.
実施例６
線状低密度ポリエチレン（日本ポリエチレン株式会社製LLDPE ：ハーモレックス NH845N）にサポニン（東京化成工業株式会社製 商品名：サポニン）を重量比で３３重量％配合しペレット化した後、実施例１と同様にして、ポリエチレン不織布（ユニチカ株式会社製エルベスＳ０３０３ＷＤＯ）にサポニン配合の前記LLDPE 樹脂をT-ダイ押し出し機を用いてダイス温度２１０℃で押し出し、前記不織布の片面にコロナ処理をしながら、ラミネート厚さ約２０μｍになるようラミネートし、更に、前記不織布に粘着剤層を設けて軟体動物用忌避テープを作製した。
Example 6
After blending 33% by weight of saponin (trade name: saponin, manufactured by Tokyo Chemical Industry Co., Ltd.) with linear low density polyethylene (LLDPE: Harmolex NH845N, manufactured by Nippon Polyethylene Co., Ltd.), the same as in Example 1 Then, the LLDPE resin blended with saponin was extruded into a polyethylene nonwoven fabric (Elves S0303WDO manufactured by Unitika Co., Ltd.) using a T-die extruder at a die temperature of 210 ° C., and the thickness of the laminate was corona treated on one side of the nonwoven fabric. The laminate was laminated to about 20 μm, and an adhesive layer was provided on the non-woven fabric to prepare a repellent tape for mollusks.
実施例７
実施例１において、未晒しクラフト紙を用いず、LLDPE にサポニンを２０重量％配合し、T-ダイ押し出し機を用いて厚さ３０μｍのフィルムを押出し、基材層及び粘着剤層を有さず、サポニンを含有するフィルム単体からなる軟体動物用忌避テープを作製した。
Example 7
In Example 1, without using unbleached kraft paper, 20% by weight of saponin was blended with LLDPE, and a T-die extruder was used to extrude a 30 μm-thick film without having a base material layer and an adhesive layer. A repellent tape for mollusks made of a single film containing saponin was prepared.
比較例１
LLDPE 樹脂にサポニンを配合しなかった他は実施例１と同様にして、未晒しクラフト紙の片面にLLDPE 樹脂をT-ダイ押し出し機を用いてダイス温度２１０℃で押し出し、実施例１と同様に、前記クラフト紙の片面に厚さ約２０μｍになるようラミネートし、更に、前記クラフト紙に粘着剤層を設けて軟体動物用忌避テープを作製した。
Comparative Example 1
Except that the saponin was not added to the LLDPE resin, the LLDPE resin was extruded on one side of the unexposed kraft paper at a die temperature of 210 ° C. using a T-die extruder in the same manner as in Example 1. The kraft paper was laminated so as to have a thickness of about 20 μm, and an adhesive layer was further provided on the kraft paper to prepare a repellent tape for mollusks.
上記実施例１〜７及び比較例１で得られた軟体動物用忌避テープから長さ３０ｃｍ×幅５ｃｍのサンプルを切り出し、上記忌避効果の試験方法にしたがって試験を行った。試験結果を表１に示す。 A sample 30 cm long by 5 cm wide was cut out from the repellent tape for molluscs obtained in Examples 1 to 7 and Comparative Example 1 and tested according to the test method for the repellent effect. The test results are shown in Table 1.
表１の結果から明らかなように、実施例１〜７に代表される本発明の軟体動物用忌避テープは、優れた忌避効果を発揮する。尚、実施例４（積層体）と実施例７（フィルム単体）との比較から、積層体からなる軟体動物用忌避テープとフィルム単体からなる軟体動物用忌避テープとの間には忌避効果の差異は認められない。 As is apparent from the results in Table 1, the mollusc repellent tape of the present invention represented by Examples 1 to 7 exhibits an excellent repellent effect. From the comparison between Example 4 (laminate) and Example 7 (single film), there is a difference in the repellent effect between the mollusc repellent tape composed of the laminate and the mollusc repellent tape composed of the film alone. It is not allowed.
使用例
上記実施例１〜７及び比較例１で得られた軟体動物用忌避テープからサンプル（１０ｃｍ×１０ｃｍ）を得て、トマトの土の表面に近い幹（茎）（直径約２ｃｍ）に１０ｃｍの幅（長さ）で巻き付けた。尚、実施例７の忌避テープは粘着剤層を有しないので、巻き付けた後、忌避テープがずれ落ちないようにホッチキスで止めた。
１カ月経過後にナメクジの忌避効果を調べたところ、上記忌避試験と同様の結果が得られた。
Example of Use A sample (10 cm × 10 cm) was obtained from the mollusc repellent tape obtained in Examples 1 to 7 and Comparative Example 1 above, and 10 cm on the trunk (stem) (diameter about 2 cm) close to the surface of the tomato soil. Wrapped with a width (length) of. In addition, since the repellent tape of Example 7 does not have an adhesive layer, it was stopped with a stapler so that the repellent tape would not slip off after being wound.
When the repellent effect of slugs was examined after one month, the same results as in the repellent test were obtained.
以上のように、本発明の軟体動物用忌避テープによれば、散水や降雨による薬効の低下がなく、柔軟性に富み、果菜類の幹や枝に巻き付けることができるので薬効が効果的に発揮される。
また、サポニンとの相溶性の良くない樹脂を用いた場合は、樹脂フィルム内部から表面にサポニンが移行し徐放されるので、長期間に亘って薬効が持続する。
また、基材層と積層した場合には、製造が容易で強度が向上し、更に、基材層として紙やポリエチレン不織布等を用いた場合は、繊維と繊維との隙間からサポニンが放出されるので、基材層と接する側からも忌避効果が得られるばかりでなく、本発明の忌避テープを果菜類の幹や枝に巻き付けて使用する場合は、幹や枝の成長に合わせて、これらの基材層も伸張するので、幹や枝への追従姓が良好である。
更にまた、粘着剤層を設けることにより、忌避テープを果菜類の幹や枝に簡単に巻き付けることができるので、取り扱い性及び作業性が向上する。
As described above, according to the repellent tape for mollusks of the present invention, there is no decrease in medicinal effect due to watering or rain, it is highly flexible and can be wound around the trunk or branch of fruit vegetables, so that the medicinal effect is effectively exhibited. Is done.
Further, when a resin that is not compatible with saponin is used, the saponin is transferred from the inside of the resin film to the surface and is released slowly, so that the medicinal effect is maintained for a long period of time.
In addition, when laminated with the base material layer, the production is easy and the strength is improved. Furthermore, when paper or polyethylene nonwoven fabric is used as the base material layer, saponin is released from the gap between the fibers. Therefore, not only can the repellent effect be obtained from the side in contact with the base material layer, but when the repellent tape of the present invention is used by being wrapped around the trunk or branch of fruit vegetables, these are adapted to the growth of the trunk or branch. Since the base material layer also stretches, the follow-up name to the trunk and branches is good.
Furthermore, by providing the pressure-sensitive adhesive layer, the repellent tape can be easily wrapped around the trunk and branches of fruit vegetables, so that handling and workability are improved.
Claims (11)
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020055950A (en) * | 2018-10-02 | 2020-04-09 | 五洋紙工株式会社 | Thermoplastic resin composition, mollusk repellent using the same, and resin molded article for repelling mollusks |
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| JP2020055950A (en) * | 2018-10-02 | 2020-04-09 | 五洋紙工株式会社 | Thermoplastic resin composition, mollusk repellent using the same, and resin molded article for repelling mollusks |
| JP7130237B2 (en) | 2018-10-02 | 2022-09-05 | 五洋紙工株式会社 | Thermoplastic resin composition, mollusk repellent material using the same, and resin molded article for repelling mollusk |
| EP4165992A4 (en) * | 2020-06-12 | 2023-12-06 | Earth Create Co., Ltd. | Gastropod repellent film and plant cultivation method |
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