JPH11127700A - Agricultural polyolefin-based film having improved workability - Google Patents
Agricultural polyolefin-based film having improved workabilityInfo
- Publication number
- JPH11127700A JPH11127700A JP9316368A JP31636897A JPH11127700A JP H11127700 A JPH11127700 A JP H11127700A JP 9316368 A JP9316368 A JP 9316368A JP 31636897 A JP31636897 A JP 31636897A JP H11127700 A JPH11127700 A JP H11127700A
- Authority
- JP
- Japan
- Prior art keywords
- film
- air
- agricultural
- agricultural polyolefin
- folded
- 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
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明はハウスやトンネルを
被覆する農業用ポリオレフィン系フィルムに関する。更
に詳しくは、筒状のフィルムを一枚ものにする工程（開
反工程）や農業用ハウスに展張する工程で、フィルム同
志の密着がなく作業性が良好な特性を有する農業用ポリ
オレフィン系フィルムに関する。The present invention relates to an agricultural polyolefin film for covering a house or a tunnel. More specifically, the present invention relates to a polyolefin film for agriculture, which has a property that there is no close contact between the films and the workability is good in a process of forming a tubular film into one piece (opening process) or a process of spreading it on an agricultural house. .
【０００２】[0002]
【背景技術】インフレーション法によって成型された農
業用ポリオレフィン系フィルムは、１０ｍ以上の広幅の
生産が可能であり、幅継ぎの必要がなく継ぎ部の融着不
足等の問題もないことから、好適に用いられている。BACKGROUND ART A polyolefin film for agricultural use molded by an inflation method can be produced in a wide width of 10 m or more, and does not require a width joint and has no problems such as insufficient fusion at a joint portion. Used.
【０００３】一般に、インフレーション法による農業用
ポリオレフィン系フィルムは、横方向に折り畳まれ二重
折り（以下「ダブル折り」）となっているが、６ｍを越
えるような広幅フィルムは、フィルム成形後の取り扱い
を簡便にするためにインフレーションフィルムの外面に
折り込みを入れてコンパクトにする折り方（以下「ガゼ
ット折り」）が取られる場合がある。[0003] Generally, polyolefin films for agricultural use by the inflation method are folded in the horizontal direction to form double folds (hereinafter referred to as "double folds"), but wide films exceeding 6 m are handled after film formation. In some cases, a fold is made on the outer surface of the blown film to make it compact (hereinafter, “gazette fold”) in order to simplify the process.
【０００４】このガゼット折りされた農業用フィルム
は、一枚もの（以下「シングル」）とする開反工程の後
に折り畳み工程若しくは絞り工程を経て農産物生産者へ
配送される場合と、ガゼット折りのまま折り畳み工程を
経て農産物生産者へ配送される場合がある。後者の場合
には、該フィルムを農業用ハウスに張る展張工程で、ガ
ゼット折りを開きながらシングルとし展張することとな
る。[0004] The gusset-folded agricultural film is delivered to an agricultural product producer through a folding step or a drawing step after an opening step (hereinafter referred to as “single”), or as a gusset-folded agricultural film. It may be delivered to agricultural producers through the folding process. In the latter case, the film is stretched as a single while opening the gusset in the stretching step of stretching the film on an agricultural house.
【０００５】一般に農業用フィルムには、防曇性を付与
するための防曇剤が多量に添加されたり、防曇塗布剤が
塗布されており、透明性を付与するために表面が平滑で
あることからフィルム同志が密着し易く、特に夏場に成
形されたフィルムはその傾向が著しい。こうした密着し
易いガゼット折りフィルムを開反工程や展張工程に供し
た際には、フィルム同志の密着のため開反や展張作業が
捗らないばかりか、剥離帯電による静電気の蓄積による
電撃が生じたり、フィルムが破れて使用できなくなる等
の問題がある。また、インフレーション法によりフィル
ムを成型する際にコーンスターチや馬鈴薯等の澱粉をフ
ィルムに付着させ、密着しにくくする手法も取られる
が、前記作業性の問題や静電気による電撃の問題を解決
するまでには至っていない。Generally, agricultural films are coated with a large amount of an antifogging agent for imparting antifogging properties or coated with an antifogging coating agent, and the surface is smooth to impart transparency. Therefore, the films are easily adhered to each other, and the tendency is remarkable especially in a film formed in summer. When such a gusset-folded film that easily adheres is subjected to the opening process or the stretching process, not only does the opening and stretching work not progress due to the close contact between the films, but also electric shock due to the accumulation of static electricity due to peeling charging occurs, There is a problem that the film is broken and cannot be used. Also, when molding a film by the inflation method, a method of adhering starch such as corn starch or potato to the film and making it difficult to adhere is also taken, but until the problem of the workability and the problem of electric shock due to static electricity are solved. Not reached.
【０００６】[0006]
【発明が解決しようとする課題】本発明者らは、これら
の問題点を解決すべく鋭意研究した結果、フィルム同志
の接触面にエアーを注入することにより、フィルム同志
の密着が解消され、開反作業性や展張作業性が良好とな
り、静電気による電撃対策やフィルム自体の破れ対策も
可能となることを見いだし本発明を完成した。The inventors of the present invention have conducted intensive studies to solve these problems, and as a result, by injecting air into the contact surfaces of the films, the adhesion of the films is eliminated. The present inventors have found that the anti-working property and the stretching workability are improved, and it is possible to take measures against an electric shock due to static electricity and a measure to tear the film itself.
【０００７】[0007]
【発明の実施の形態】以下に本発明を詳細に説明する。
本発明の農業用フィルムは、公知のインフレーション法
により製造され、単層でもよいが、防曇持続性、透明
性、防塵性、柔軟性および強度等の観点から積層として
もよい。フィルム厚みは、使用する場所や耐用年数等に
より異なるが、一般的に０．０５〜０．３ｍｍ程度のも
のが好適に用いられる。また、防曇塗布剤や防塵塗布剤
等を塗布・乾燥し、表面に塗布膜を形成しても構わな
い。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail.
The agricultural film of the present invention is produced by a known inflation method and may be a single layer, but may be a laminated layer from the viewpoints of antifogging durability, transparency, dust resistance, flexibility and strength. The thickness of the film varies depending on the place where the film is used, the service life, and the like. Alternatively, a coating film may be formed on the surface by applying and drying an antifogging coating agent, a dustproof coating agent, and the like.
【０００８】農業用ポリオレフィン系フィルムに用いる
ポリオレフィン系樹脂としては、α−オレフィンの単独
重合体やα−オレフィンを主成分とする異種単量体との
共重合体であり、例えば、プロピレン単独重合体やエチ
レン、１−ブチレン、１−ペンテン、１−ヘキセンとの
共重合体であるプロピレン系重合体、エチレン単独重合
体や１−ブテン、１−ペンテン、１−ヘキセン、４−メ
チル−１−ペンテン、１−オクテン、酢酸ビニルとの共
重合体であるエチレン系重合体が挙げられ、これらの樹
脂は単独で用いても、２種以上を混合して用いてもよ
い。The polyolefin resin used in the agricultural polyolefin film is a homopolymer of α-olefin or a copolymer with a different monomer containing α-olefin as a main component, for example, a propylene homopolymer. And propylene-based polymers which are copolymers with ethylene, 1-butylene, 1-pentene and 1-hexene, ethylene homopolymers and 1-butene, 1-pentene, 1-hexene and 4-methyl-1-pentene , 1-octene and an ethylene-based polymer which is a copolymer with vinyl acetate. These resins may be used alone or in combination of two or more.
【０００９】本発明に係わるフィルムの製造に際して
は、各種防曇剤、ハイドロタルサイト類やアルミニウム
シリケート等の保温剤、防霧剤、熱安定剤、酸化防止
剤、ヒンダードアミン系光安定剤、紫外線吸収剤、スリ
ップ剤等の各種添加剤を添加してもよい。In the production of the film according to the present invention, various antifogging agents, heat retaining agents such as hydrotalcites and aluminum silicate, antifog agents, heat stabilizers, antioxidants, hindered amine light stabilizers, ultraviolet absorption Various additives such as an agent and a slip agent may be added.
【００１０】一般にガゼット折りは、開き口をフィルム
の縦方向に沿って折り幅の中央付近に設ける観音開き
（図１）と開き口を折り目に設ける片開き（図２）があ
る。エアーの注入は、開き口よりエアーノズル等を挿入
し、折り目方向に向かってエアーを注入する。In general, the gusset folding includes a double opening (FIG. 1) in which an opening is provided near the center of the folding width along the longitudinal direction of the film and a single opening (FIG. 2) in which the opening is formed in a fold. For the injection of air, an air nozzle or the like is inserted from the opening, and air is injected toward the fold direction.
【００１１】更に、フィルム外面が折り込まれた部分も
フィルム同志が密着している場合には、フィルム外面よ
りエアーノズル等を折り込み部に挿入し、エアーを注入
することにより開反や展張時の作業性を向上し、静電気
の発生を抑制することが可能となった。[0011] Further, when the film is in close contact with the portion where the outer surface of the film is folded, an air nozzle or the like is inserted into the folded portion from the outer surface of the film, and air is injected to perform the work at the time of opening and spreading. Performance has been improved, and generation of static electricity can be suppressed.
【００１２】エアーの発生源としては、公知のブロアー
やコンプレッサー等が用いられるが、密着したフィルム
を剥離するためにも静圧が５００から３０００ｍｍＡｑ
程度のものが望ましい。また、風量については、最大風
量が０．５〜５ｍ3／ｍｉｎ程度のものが好適に用いら
れる。As a source of air, a known blower, compressor, or the like is used, but a static pressure of 500 to 3000 mmAq is used to peel off the adhered film.
A degree is desirable. Regarding the air volume, a gas having a maximum air volume of about 0.5 to 5 m 3 / min is preferably used.
【００１３】エアーの吹き出し口となるエアーノズルの
長さは、フィルムの開き形態や折り幅によっても異なる
が、０．５ｍ〜２ｍ程度のものが好適に用いられる。ま
た、エアーノズル先端の断面積は、エアーノズル本数や
エアーノズル長さにより決定される。The length of the air nozzle serving as the air outlet varies depending on the opening form and the folding width of the film, but is preferably about 0.5 m to 2 m. The cross-sectional area at the tip of the air nozzle is determined by the number of air nozzles and the length of the air nozzle.
【００１４】また、エアーノズル側面には、エアーノズ
ルとフィルムの摩擦を防止する目的から１〜１０ｍｍφ
程度の穴を１００〜５００ｃｍ間隔で設けることが望ま
しい。On the side of the air nozzle, 1 to 10 mmφ is provided for the purpose of preventing friction between the air nozzle and the film.
It is desirable to provide holes of the order of 100 to 500 cm.
【００１５】なお、エアー注入後のフィルムを更に滑り
やすくするためにコーンスターチや馬鈴薯等の澱粉をエ
アーに混入させても構わない。Incidentally, starch such as corn starch or potato may be mixed into the air in order to make the film after air injection more slippery.
【００１６】[0016]
【実施例】以下、実施例および比較例により本発明を具
体的に説明するが、本発明はこれにより限定されるもの
ではない。EXAMPLES The present invention will now be described specifically with reference to Examples and Comparative Examples, but the present invention is not limited thereto.
【００１７】フィルムに発生した静電気の測定には、MO
NROE ELECTRONICS製Stac-Arc MODEL255を使用した。
フィルム開反時および展張時のフィルム同志の密着性に
起因する作業性不良の問題に対し、Ａ（優れている）、
Ｂ（若干問題はあるが実用可能）、Ｃ（実用不可）の３
ランクにて評価した。For measuring static electricity generated on a film, MO
Stac-Arc MODEL255 manufactured by NROE ELECTRONICS was used.
A (excellent) for the problem of poor workability due to the adhesion between the films at the time of opening and unrolling the film,
B (somewhat problematic but practical), C (impractical)
It was evaluated by rank.
【００１８】実施例１〜４ 比較例１〜２ ９０ｍｍφ押出機３台を有する３種３層インフレーショ
ン成形装置を用い、酢酸ビニル含有量＝15重量％のエチ
レン−酢酸ビニル共重合体を主成分とし、ソルヒ゛タンモノハ゜ルミ
テート45重量％、シ゛ク゛リセリンセスキステアレート45重量％およびシ゛ク゛リセ
リンセスキオレート10重量％からなる防曇剤を3重量％、ハイドロ
タルサイト類化合物4重量％、フッ素系界面活性剤0.1重
量％、ヒンダードアミン系耐候剤0.4重量％、フェノー
ル系安定剤0.1重量％、リン系安定剤0.1重量％が含まれ
た樹脂組成物を６５φ押出機へ投入し中間層Ａ(厚み60
μ)とし、低密度ポリエチレンを主成分とし、ヒンダー
ドアミン系耐候剤0.4重量％、フェノール系安定剤0.1重
量％、リン系安定剤0.1重量％が含まれた樹脂組成物を
一方の９０φ押出機へ投入し内層Ｂ(厚み20μ)とし、酢
酸ビニル含有量＝5重量％のエチレン−酢酸ビニル共重
合体を主成分とし、ヒンダードアミン系耐候剤0.4重量
％、フェノール系安定剤0.1重量％、リン系安定剤0.1重
量％が含まれた樹脂組成物をもう一方の９０φ押出機へ
投入し外層Ｂ’(厚み20μ)とし、中間層Ａの内外面に内
層Ｂと外層Ｂ’が積層され、幅１０ｍを有するインフレ
ーションフィルムとした。Examples 1-4 Comparative Examples 1-2 Using a three-layer, three-layer inflation molding apparatus having three 90 mmφ extruders, an ethylene-vinyl acetate copolymer having a vinyl acetate content of 15% by weight was used as a main component. 3% by weight of antifogging agent composed of 45% by weight of sorbitan monomalmitate, 45% by weight of glycerin sesquistearate and 10% by weight of glycerin sesquisoleate, 4% by weight of hydrotalcite compounds, 0.1% of fluorine surfactant % By weight, a hindered amine-based weathering agent 0.4% by weight, a phenol-based stabilizer 0.1% by weight, and a phosphorus-based stabilizer 0.1% by weight were put into a 65φ extruder, and an intermediate layer A (thickness 60) was added.
μ), a resin composition containing low-density polyethylene as a main component and containing 0.4% by weight of a hindered amine-based weathering agent, 0.1% by weight of a phenol-based stabilizer, and 0.1% by weight of a phosphorus-based stabilizer is fed into one 90φ extruder. Inner layer B (thickness: 20μ), mainly composed of ethylene-vinyl acetate copolymer having a vinyl acetate content of 5% by weight, hindered amine-based weathering agent 0.4% by weight, phenol-based stabilizer 0.1% by weight, phosphorus-based stabilizer The resin composition containing 0.1% by weight is put into another 90φ extruder to form an outer layer B ′ (thickness: 20 μ), and an inner layer B and an outer layer B ′ are laminated on the inner and outer surfaces of the intermediate layer A, and have a width of 10 m. It was an inflation film.
【００１９】前記インフレーションフィルムを外面より
二個所折り込み、折り幅２．５ｍのガゼット折りとした
後に、折り幅の片面中央部をスリットした観音開きとし
てサーフェス式ワインダーにより巻き取り、農業用フィ
ルムの原反とした。The inflation film is folded at two places from the outer surface to form a gusset with a fold width of 2.5 m, and then wound by a surface winder as a double-sided slit having a slit at the center on one side of the fold width, thereby forming a raw agricultural film. did.
【００２０】次にガゼット観音開きの前記農業用ポリオ
レフィン系フィルムの原反を、最大静圧２８００ｍｍＡ
ｑ、最大風量５．５ｍ3／minのブロアー(富士電機■製リ
ンク゛フ゛ロアーVFC606A)及びエアーノズルの側面に５ｍｍφの
穴をエアーノズル先端より２００ｍｍ間隔に有する長さ
０．５ｍのエアーノズル４本を用い、開き口より折り目
方向に向かってエアーを注入（図３）し、農業用ポリオ
レフィン系フィルムとした。Next, the raw material of the agricultural polyolefin-based film having the gusset double opening was subjected to a maximum static pressure of 2800 mmA.
q, a blower with a maximum air flow of 5.5 m 3 / min (Fuji Electric Co., Ltd. Link Floor VFC606A) and four 0.5 m long air nozzles with 5 mmφ holes on the side of the air nozzle at 200 mm intervals from the tip of the air nozzle. Air was injected from the opening in the direction of the fold (FIG. 3) to obtain an agricultural polyolefin-based film.
【００２１】更に、外面折り込み部二個所にもエアーノ
ズルを挿入し、エアーを注入した。Further, air nozzles were also inserted into the two outer folding portions to inject air.
【００２２】エアーを内面及び内外面に注入した前記農
業用ポリオレフィン系フィルムとエアーを注入しない農
業用ポリオレフィン系フィルムについて、一枚ものにす
る開反を実施し、開反性および静電気の発生状態を評価
した。また、開反前後の前記農業用フィルムを折り畳ん
だものについて、ハウスに展張し、展張性の評価を実施
した。With respect to the agricultural polyolefin film into which air is injected into the inner surface and the inner and outer surfaces and the agricultural polyolefin film into which air is not injected, a single sheet is opened to check the opening property and the state of generation of static electricity. evaluated. Moreover, about the thing which folded the said agricultural film before and after opening, it spread | stretched to the house and evaluated the extensibility.
【００２３】[0023]
【発明の効果】本発明の農業用ポリオレフィン系フィル
ムは、インフレーション法により成型され、該フィルム
の外面に縦方向に沿って折り込みが入った農業用ポリオ
レフィン系フィルムにおいて、フィルム同志の接触面に
エアーを注入することにより、フィルム同志の密着が解
消され、開反作業性や展張作業性が良好となり、静電気
による電撃対策やフィルム自体の破れ対策も可能となる
ことから、ハウス、トンネル等の農業用フィルムとして
好適に用いることができる。The agricultural polyolefin film of the present invention is formed by an inflation method, and in the agricultural polyolefin film in which the outer surface of the film is folded in the longitudinal direction, air is applied to the contact surfaces of the films. By injecting, the adhesion between films is eliminated, the workability of opening and closing work is improved, and it is also possible to take measures against electric shock due to static electricity and measures to tear the film itself, so agricultural films such as houses and tunnels Can be suitably used.
【００２４】[0024]
【表１】 [Table 1]
【００２５】[0025]
【表２】 [Table 2]
【図１】ガゼット折り観音開きフィルムの縦方向に対す
る垂直断面図である。FIG. 1 is a vertical cross-sectional view of a gusset folded double-opened film with respect to the longitudinal direction.
【図２】ガゼット折り片開きフィルムの縦方向に対する
垂直断面図である。FIG. 2 is a vertical cross-sectional view of the gusset folded open film with respect to the longitudinal direction.
【図３】ガゼット折り観音開き農業用ポリオレフィン系
フィルムへのエアー注入概略図である。FIG. 3 is a schematic diagram of air injection into a polyolefin-based film for agricultural use with a gusset folded double-folded opening.
１．折り込み ２．折り目 ３．開き口 ４．農業用ポリオレフィン系フィルムの原反 ５．フィルム内面の折り込み部両側へのエアー注入用エ
アーノズル ６．フィルム外面の折り込み部へのエアー注入用エアー
ノズル1. Insert 2. Crease 3. Opening 4 4. Raw material of agricultural polyolefin film 5. Air nozzles for injecting air into both sides of the fold on the inner surface of the film Air nozzle for injecting air into the fold on the outer surface of the film
─────────────────────────────────────────────────────
────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成１０年１０月７日[Submission date] October 7, 1998
【手続補正１】[Procedure amendment 1]
【補正対象書類名】図面[Document name to be amended] Drawing
【補正対象項目名】図１[Correction target item name] Fig. 1
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【図１】 FIG.
【手続補正２】[Procedure amendment 2]
【補正対象書類名】図面[Document name to be amended] Drawing
【補正対象項目名】図２[Correction target item name] Figure 2
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【図２】 FIG. 2
Claims (2)
ィルムの外面に縦方向に沿って折り込みが入った農業用
ポリオレフィン系フィルムにおいて、該フィルムの内面
より該折り込み部の両側にエアーが注入された作業性の
改良された農業用ポリオレフィン系フィルム。1. An agricultural polyolefin film formed by an inflation method and having a fold formed in the outer surface of the film along the longitudinal direction, wherein air is injected from the inner surface of the film to both sides of the fold. Improved agricultural polyolefin film.
注入された請求項１記載の作業性の改良された農業用ポ
リオレフィン系フィルム。2. The agricultural polyolefin film according to claim 1, wherein air is injected into the folded portion from the outer surface of the film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9316368A JPH11127700A (en) | 1997-10-31 | 1997-10-31 | Agricultural polyolefin-based film having improved workability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9316368A JPH11127700A (en) | 1997-10-31 | 1997-10-31 | Agricultural polyolefin-based film having improved workability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH11127700A true JPH11127700A (en) | 1999-05-18 |
Family
ID=18076327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9316368A Pending JPH11127700A (en) | 1997-10-31 | 1997-10-31 | Agricultural polyolefin-based film having improved workability |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH11127700A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011046147A (en) * | 2009-08-28 | 2011-03-10 | Suzuki Kako Kk | Method and apparatus for manufacturing wide resin film sheet |
| WO2014132945A1 (en) | 2013-02-27 | 2014-09-04 | シーアイ化成株式会社 | Method for manufacturing agricultural film, and agricultural film |
-
1997
- 1997-10-31 JP JP9316368A patent/JPH11127700A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011046147A (en) * | 2009-08-28 | 2011-03-10 | Suzuki Kako Kk | Method and apparatus for manufacturing wide resin film sheet |
| WO2014132945A1 (en) | 2013-02-27 | 2014-09-04 | シーアイ化成株式会社 | Method for manufacturing agricultural film, and agricultural film |
| KR20150122133A (en) | 2013-02-27 | 2015-10-30 | 씨. 아이. 카세이 가부시기가이샤 | Method for manufacturing agricultural film, and agricultural film |
| JPWO2014132945A1 (en) * | 2013-02-27 | 2017-02-02 | シーアイ化成株式会社 | Agricultural film manufacturing method and agricultural film |
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