JP2004275088A - Birdproof net and method for producing the same - Google Patents

Birdproof net and method for producing the same Download PDF

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Publication number
JP2004275088A
JP2004275088A JP2003071257A JP2003071257A JP2004275088A JP 2004275088 A JP2004275088 A JP 2004275088A JP 2003071257 A JP2003071257 A JP 2003071257A JP 2003071257 A JP2003071257 A JP 2003071257A JP 2004275088 A JP2004275088 A JP 2004275088A
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JP
Japan
Prior art keywords
net
negative ion
fine powder
rays
plastic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2003071257A
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Japanese (ja)
Inventor
Mitsugi Baba
貢 馬場
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BABA KAGAKU KOGYO KK
Original Assignee
BABA KAGAKU KOGYO KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BABA KAGAKU KOGYO KK filed Critical BABA KAGAKU KOGYO KK
Priority to JP2003071257A priority Critical patent/JP2004275088A/en
Publication of JP2004275088A publication Critical patent/JP2004275088A/en
Pending legal-status Critical Current

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  • Artificial Filaments (AREA)
  • Braiding, Manufacturing Of Bobbin-Net Or Lace, And Manufacturing Of Nets By Knotting (AREA)
  • Protection Of Plants (AREA)
  • Catching Or Destruction (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a protective net for preventing garbage scattering or fruit damage caused by picking activities of birds, and to provide a method for producing the same. <P>SOLUTION: The plastic birdproof net is characterized by that a negative ion generator is present therein. In this net, the negative ion generator is selected from zirconium-based ceramic fine powder, silicon-based ceramic fine powder, natural ore fine powder obtained from hot spring ores, and powder obtained by compounding diatomaceous earth with germanium ore or residues left after refining the ore, and means inorganic powder 0.5-50μm in particle size and 100-5,000 ions/cm<SP>3</SP>in the emission dose of negative ions such as β-rays, γ-rays or far-infrared rays. By the way, the above-mentioned "present" means that the negative ion generator is contained in the fibers constituting this net or provided on the net surface by means of coating or the like. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【0001】
【産業上の利用分野】
本発明は、ごみ収集所の生ごみを烏の食い散らかしを防ぐ、又は果実を鳥の啄みから防ぐための防鳥ネット及びその製造方法に関する。
【0002】
【従来の技術】
従来、ごみの収集所に出された生ごみを烏の被害から守るため、または果樹園の果実を烏や鶫などの小鳥に食い荒らされるのを防ぐため、防護ネットが用いられている。しかし、従来の防護ネットは、ゴルフ練習場などに使用される軽ネットをそのまま使用することから、烏の喙がネットの網目内に入りごみ袋を食い破り中のごみを引き出し、散乱させるなどの被害があった。そこで、ネットの目合いを小さくし喙の網目内に入るのを防ぐことを図ったが烏や小鳥などが防護ネットにすぐに慣れ、ネットの隙間から生ごみを引きずり出す或は浸入し果実などを啄む鳥害を十分に防ぐことができなかった。
【0003】
【発明が解決しようとする課題】
こうした欠点を解決するため連結した枠組立体に網を被せる防護ネット(特許文献1)やストッカーと呼ばれる構造体(特許文献2)が提案されたが、いずれも設置のためのスペースが必要である上に、費用もかかり、さらに取扱が面倒であるなどから十分に機能するものではなかった。
【0004】
【特許文献1】
特開2002−223690号公報
【特許文献2】
特開2002−360152号公報
【0005】
上記原状に鑑み、本発明者は鋭意研究した結果、防護ネットに特定のマイナスイオン発生材を存在させることで多くのマイナスイオンが放出され、烏や小鳥の接近が防げる上に、放出する線量が温度により変化することで学習効果もなく、長期間にわたって鳥から生ごみや果実を防ぐことのできる防護ネットが得られることを見出して本発明を完成したものである。
【0006】
本発明は、鳥の啄みによるごみの散乱や鶫などの小鳥の啄みから果実の被害を護るための防護ネットを提供することを目的とする。
【0007】
また、本発明は、上記防護ネットの製造方法を提供することを目的とする。
【0008】
【課題を解決するための手段】
上記目的を達成するための本発明は、プラスチック製防鳥ネットにおいて、該プラスチック製防鳥ネットにマイナスイン発生材が存在することを特徴とする防鳥ネット及びその製造方法に関する。
【0009】
本発明の防護ネットは、ポリエチレン、ポリプロピレン、ポリスチレン、ポリエステル、ナイロンなどのプラスチックから作成され、かつマイナスイン発生材が存在するネットである。前記マイナスイオン発生材とは、ジルコニウム系、けい素系セラミックス微粉末、温泉鉱石から得た天然鉱石微粉末、珪藻土にゲルマニウム鉱石又はその精製残渣の精製残渣を配合した粉末などから選ばれ、粒径が0.5〜50μmで、β線、γ線、遠赤外線などのマイナスイオンの放出線量が100〜5,000イオン/cmの無機粉末をいい、前記「存在する」とは、プラスチック製ネットを構成する繊維中にマイナスイオン発生材が含有される、或はネット表面にマイナスイオン発生材が塗布などの手段で存在することをいう。特にポリエチレン製ネットにマイナスイオン発生材が存在する防護ネットはしなやかで取り扱いが容易で好ましい。前記マイナスイオン発生材の具体例としてメガイオンホワイト(ぴゅあイオン社製:シリカ粉を1700℃で焼成し、ゲルマニウム成分を120ppm含有する珪素系セラミックス)やカイヤセラー粉末(日本化薬社製:三朝温泉の温泉鉱石に類似の鉱物)が挙げられる。特にけい素系セラミックスにゲルマニウム成分を50〜300ppmの範囲で含有するメガイオンホワイトなどのマイナスイオン発生材は、低温時には酸化けい素に基づく遠赤外線やβ線などのマイナスイオンの放出があり、さらに温度が32℃を超えるとゲルマニウム成分からのマイナスイオンの放出が多くなり、烏や鶫などの小鳥の接近が防げる上に、放出線量の変化で鳥、特に烏の学習効果もなく長期にわたって烏や小鳥の被害から生ごみや果実を防ぐことができる。
【0010】
上記放射線量は、株式会社エコホリスティック製「簡易式マイナスイオン測定器:MODEL:EB−12A]により測定された値である。
【0011】
上記防護ネットは、(i)プラスチック粉末に上記マイナスイオン発生材を混ぜ、混練しペレット状に成形したのち押出紡糸機から50〜500デニールのフィラメントに押出し、延伸したのち20〜70本撚り合わせて糸とし、それを製網機で無結節網や結節網に製網する方法、(ii)押出機のTダイから幅50〜200cmのプラスチックシートを押出し、1mm〜10cm間隔に突起のあるエンボスロールで孔を開け巻取る方法、或は(iii)網目模様を設けたエンボスローラーにプラスチックを押出し、網目模様の肉厚部分とその間の肉薄部分とをもつエンボスシートに形成し、延伸して肉薄部分を開孔し3mm〜20cm角の目合いのネットとする方法などで製造される。特にゲルマニウム成分を含むマイナスイオン発生材を用いる場合には、配合成分としてカーボンブラックなどの濃色の顔料を少量配合するのがよい。これによりネットの温度が容易に上昇しゲルマニウム成分からのマイナスイオンの放出が多くなり好ましい。
【0012】
本発明の防護ネットは、用途によりネットの太さや目合いを変えるがよいが、烏に対する防護ネットの場合、烏が大型であることから繊維の太さを1,000〜3,000デニールとし、かつ目合いを網目に烏の喙が入らない又は入ってもマイナスイオンが十分に機能する3〜10mm角の範囲とするのがよい。一方、鶫などの小鳥から果実を守る果樹園用の防護ネットの場合には、マイナスイオンで小鳥の接近が防げる3〜20cm角の目合いで十分であり、また繊維の太さもネットが破られない100〜1,000デニール程度でよい。
【0013】
【発明の実施の形態】
本発明の実施の形態を具体的に説明するが、本発明の技術的思想から逸脱しない限り種々の態様例も可能である。
【0014】
【実施例】
実施例1
軟質ポリエチレン粉末にメガイオンホワイト微粉末及びカーボンブラックを18重量%混合しよく混練したのちチップ状に成形し、ノズル付き押出機から約260℃でモノフィラメント状に押出した。押し出しモノフィラメントを冷却水槽で冷却したのち、延伸機で約8倍に延伸して400デニールのポリエチレン繊維を得た。この繊維を60本撚り合わせて糸にし、製網機で目合い4mm角の無結節網に製網した。得られた防護ネットからは1,300イオン/cm(前出の測定法)のマイナスイオンが放射された。この防護ネットで生ごみの袋を被ったところ、烏の接近がなく、それが約1ヶ月間続いた。
【0015】
実施例2
軟質ポリエチレン粉末にメガイオンホワイト微粉末及びカーボンブラックを30重量%混合しよく混練したのちチップ状に成形し、Tダイ付き押出機から約260℃で幅100cmのシートに押出した。押出シートを3mm間隔の突起を有するエンボスロールでパンチングし孔を開け巻取って防護ネットを製造した。該防護ネットからは2,000イオン/cm(前出の測定法)のマイナスイオンが放射された。この防護ネットで生ごみの袋を被ったところ、烏の接近がなかった。また、前記防護ネットを用いて約1ヶ月間生ごみの袋を被ったが烏による食い荒しがなかった。
【0016】
比較例1
実施例1において、メガイオンホワイト微粉末を配合しない以外、同様な紡糸法で400デニールのポリエチレンフィラメントを得、それで製網して防護ネットを作成し、生ごみの袋を被ったところ、翌日には生ごみの袋が破られ、ごみが散乱し、悪臭がした。
【0017】
【発明の効果】
本発明の防護ネットは、マイナスイオン発生材が存在し、発生するマイナスイオンで鳥の接近を防ぐととともに、気温により放射線量が変わることから鳥の学習効果もなく、長期にわたりごみや果実を守ることができるネットである。該ネットは、プラスチック粉末にマイナスイオン発生材を混合し、押し出してフィラメントとし、或はシートに形成し、製網する製造方法で製造でき、低価格で製造でき工業的価値の高いものである。
[0001]
[Industrial applications]
The present invention relates to a bird net for preventing garbage from being scattered by garbage at a garbage collection site, or a bird net for preventing fruit from being attacked by birds, and a method for producing the same.
[0002]
[Prior art]
Conventionally, protective nets have been used to protect garbage dumped at garbage collection sites from damage by crows, or to prevent fruit in orchards from being eaten by small birds such as crows and tsumugi. However, conventional protective nets use light nets that are used for golf driving ranges, etc., so that the crow crows enter the mesh of the net, break through the garbage bags, pull out the garbage, and scatter it. There was damage. Therefore, we tried to reduce the mesh of the net and prevent it from entering the net of the ras, but crows and birds quickly got used to the protective net and dragged out garbage from the gaps in the net or invaded fruits etc. It was not possible to sufficiently prevent the harmful birds.
[0003]
[Problems to be solved by the invention]
In order to solve these drawbacks, a protective net (Patent Literature 1) and a structure called a stocker (Patent Literature 2) that cover the connected frame assembly with a net have been proposed, but both require a space for installation. However, it was expensive, and it was troublesome to handle.
[0004]
[Patent Document 1]
JP 2002-223690 A [Patent Document 2]
JP-A-2002-360152 [0005]
In view of the above original state, the present inventor has conducted intensive studies, and as a result, a large amount of negative ions are released by the presence of a specific negative ion generating material in the protective net, and in addition to preventing the approach of crows and birds, the emitted dose is reduced. The present invention has been completed by finding that a protective net capable of preventing food waste and fruits from birds for a long period of time can be obtained without a learning effect by changing with temperature.
[0006]
It is an object of the present invention to provide a protection net for protecting a fruit from damage caused by a small bird such as scattered garbage or tsumugi caused by a bird's nest.
[0007]
Another object of the present invention is to provide a method for manufacturing the above-mentioned protective net.
[0008]
[Means for Solving the Problems]
Means for Solving the Problems The present invention for achieving the above-mentioned object relates to a bird-proof net made of a plastic bird-proof net, wherein the plastic bird-proof net has a minus-in generating material, and a method of manufacturing the same.
[0009]
The protective net of the present invention is a net made of plastic such as polyethylene, polypropylene, polystyrene, polyester, and nylon, and having a minus-in generating material. The negative ion generating material is selected from zirconium-based, silicon-based ceramic fine powder, natural ore fine powder obtained from hot spring ore, powder obtained by mixing diatomaceous earth with a purified residue of germanium ore or a purified residue thereof, and the like. Refers to an inorganic powder having an emission dose of negative ions of 0.5 to 50 μm, β-rays, γ-rays, far-infrared rays, etc. of 100 to 5,000 ions / cm 3. Means that the negative ion generating material is contained in the fibers constituting, or the negative ion generating material is present on the net surface by means such as coating. In particular, a protective net in which a negative ion generating material is present in a polyethylene net is preferable because it is flexible and easy to handle. Specific examples of the anion generating material include Megaion White (manufactured by Piaion Co., a silicon-based ceramic containing silica powder baked at 1700 ° C. and containing a germanium component at 120 ppm) and Kayasera powder (manufactured by Nippon Kayaku Co., Ltd .: Misasa Onsen) Minerals similar to hot spring ores). Particularly, negative ion generating materials such as mega ion white containing a germanium component in a range of 50 to 300 ppm in silicon-based ceramics emit negative ions such as far-infrared rays and β-rays based on silicon oxide at low temperatures. If the temperature exceeds 32 ° C, the release of negative ions from the germanium component will increase, preventing the approach of small birds such as crows and tsumugi, and changing the emitted dose without the learning effect of birds, especially crows, for a long time. Garbage and fruits can be prevented from damage of small birds.
[0010]
The above-mentioned radiation dose is a value measured by Eco-Holistic Co., Ltd. “Simple type negative ion measuring instrument: MODEL: EB-12A”.
[0011]
The protective net is prepared by (i) mixing the above-mentioned negative ion generating material with plastic powder, kneading and molding into a pellet, extruding the filament into 50 to 500 denier filaments from an extrusion spinning machine, stretching and twisting 20 to 70 filaments. A method of forming a knitted net into a knotless net or knotted net by a netting machine, (ii) extruding a plastic sheet having a width of 50 to 200 cm from a T die of an extruder, and embossing rolls having protrusions at intervals of 1 mm to 10 cm. Or (iii) extruding plastic onto an embossing roller provided with a mesh pattern, forming an embossed sheet having a thick portion of the mesh pattern and a thin portion between them, and stretching to form a thin portion. And a method of forming a net having a mesh size of 3 mm to 20 cm square, for example. In particular, when a negative ion generator containing a germanium component is used, a small amount of a dark pigment such as carbon black is preferably blended as a blending component. This is preferable because the temperature of the net easily rises and the release of negative ions from the germanium component increases.
[0012]
The protective net of the present invention is good to change the thickness and weight of the net depending on the application, but in the case of a protective net against crows, the crows are large, so the fiber thickness is 1,000 to 3,000 deniers, In addition, it is preferable that the size of the mesh is in the range of 3 to 10 mm square where the crow does not enter or the minus ion functions sufficiently even if it enters. On the other hand, in the case of a protective net for orchards that protects fruits from small birds such as tsumugi, a 3 to 20 cm square mesh that can prevent the approach of small birds with negative ions is sufficient, and the thickness of the fiber is also broken. It may be about 100 to 1,000 denier.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
Embodiments of the present invention will be described specifically, but various embodiments are possible without departing from the technical idea of the present invention.
[0014]
【Example】
Example 1
The soft polyethylene powder was mixed with 18% by weight of mega ion white fine powder and carbon black, kneaded well, formed into chips, and extruded into a monofilament at about 260 ° C. from an extruder equipped with a nozzle. After the extruded monofilament was cooled in a cooling water bath, it was drawn about 8 times with a drawing machine to obtain 400 denier polyethylene fiber. Sixty of these fibers were twisted into yarn, and the netting machine was used to form a knotless net having a mesh size of 4 mm. From the obtained protective net, 1,300 ions / cm 3 (the measurement method described above) were emitted. When I put a garbage bag on this protective net, there was no approach of the crow and it lasted for about a month.
[0015]
Example 2
The mixture was mixed with 30% by weight of mega ion white fine powder and carbon black in soft polyethylene powder, kneaded well, formed into chips, and extruded from an extruder equipped with a T die at about 260 ° C. into a sheet having a width of 100 cm. The extruded sheet was punched with an embossing roll having protrusions at 3 mm intervals to make holes and wound up to produce a protective net. Negative ions of 2,000 ions / cm 3 (the measurement method described above) were emitted from the protective net. When I put a bag of garbage on this protective net, there was no approach of the crow. In addition, the garbage bag was covered for about one month using the protective net, but there was no eating by the crow.
[0016]
Comparative Example 1
In Example 1, 400 denier polyethylene filaments were obtained by the same spinning method except that the mega ion white fine powder was not blended, and the net was formed to form a protective net, which was covered with a garbage bag. The garbage bag was torn, the garbage was scattered, and it smelled bad.
[0017]
【The invention's effect】
The protection net of the present invention has a negative ion generating material, prevents the approach of birds by the generated negative ions, and protects garbage and fruits for a long time without a learning effect of birds because the radiation dose changes depending on the temperature. It is a net that can. The net can be manufactured by mixing a plastic powder with a negative ion generating material, extruding it into filaments, or forming it into a sheet and forming it into a net, and can be manufactured at low cost, and is of high industrial value.

Claims (5)

プラスチック製防鳥ネットにおいて、該プラスチック製防鳥ネットにマイナスイン発生材が存在することを特徴とする防鳥ネット。A bird net made of plastic, wherein a minus-in generating material is present in the bird net made of plastic. 防鳥ネットが糸を編網したネットであることを特徴とする請求項1に記載の防護ネット。The protection net according to claim 1, wherein the bird net is a net formed by knitting a yarn. 防鳥ネットがシートから製網されたネットであることを特徴とする請求項1に記載の防護ネット。The protection net according to claim 1, wherein the bird net is a net made from a sheet. プラスチック粉末とマイナスイオン発生材とを混合し押出機により繊維またはシートに押出し、製網することを特徴とする防護ネットの製造方法。A method for manufacturing a protective net, comprising mixing a plastic powder and a negative ion generating material, extruding the fiber or sheet with an extruder, and forming a net. プラスチックから作成したネットにマイナスイオン発生材を含有する塗布液を塗布することを特徴とする防護ネットの製造方法。A method for manufacturing a protective net, comprising applying a coating solution containing a negative ion generating material to a net made of plastic.
JP2003071257A 2003-03-17 2003-03-17 Birdproof net and method for producing the same Pending JP2004275088A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005325475A (en) * 2004-05-14 2005-11-24 Kazuhiko Taniguchi Fabric disliked by crow

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005325475A (en) * 2004-05-14 2005-11-24 Kazuhiko Taniguchi Fabric disliked by crow

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