JP2009081996A - Covering material for protecting agricultural crop, method for producing the covering material, and bag and cover each for protecting agricultural crop using the covering material - Google Patents

Covering material for protecting agricultural crop, method for producing the covering material, and bag and cover each for protecting agricultural crop using the covering material Download PDF

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JP2009081996A
JP2009081996A JP2005377294A JP2005377294A JP2009081996A JP 2009081996 A JP2009081996 A JP 2009081996A JP 2005377294 A JP2005377294 A JP 2005377294A JP 2005377294 A JP2005377294 A JP 2005377294A JP 2009081996 A JP2009081996 A JP 2009081996A
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Prior art keywords
film
air
sheet
covering
sheets
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Japanese (ja)
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Hiroki Yamada
大機 山田
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NIDAIKI KK
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NIDAIKI KK
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Priority to JP2005377294A priority Critical patent/JP2009081996A/en
Priority to PCT/JP2006/326229 priority patent/WO2007074899A1/en
Publication of JP2009081996A publication Critical patent/JP2009081996A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/02—Physical, chemical or physicochemical properties
    • 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
    • A01G13/02—Protective coverings for plants; Coverings for the ground; Devices for laying-out or removing coverings
    • A01G13/0237—Devices for protecting a specific part of a plant, e.g. roots, trunk or fruits
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2410/00—Agriculture-related articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2439/00—Containers; Receptacles
    • B32B2439/02—Open containers
    • B32B2439/06—Bags, sacks, sachets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2439/00—Containers; Receptacles
    • B32B2439/70—Food packaging

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Protection Of Plants (AREA)
  • Laminated Bodies (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a covering material blocking off heat conduction to agricultural crops to prevent temperature rise inside the material, and protecting the agricultural crops from rainwater, insect attack, bird attack and the like: to provide a method for producing the covering material: and to provide a bag and a cover each for protecting agricultural crops each using the covering material. <P>SOLUTION: The covering material is produced by forming a coat 12 containing near infrared ray-blocking material on at least one face of either of a plurality of synthetic resin films 11a, 11b and the like, superimposing the films with the coat-formed face inside, letting air 14 intervene between the superimposed films and the like, making a lot of air-permeable minute holes 15 all over the surface, and joining the films with one another at the peripheral parts of the minute holes. The coat containing the near infrared ray-blocking material may be substituted by a certain material 13 having air or near infrared ray-blocking material and air. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、ぶどう、みかん、りんご、梨、桃等の果実、野菜、花、その他の露地栽培又はハウス栽培による農産物に袋状にして被せ、或いは植物の全部乃至一部を覆ってこれらの農産物を雨水、病害虫ないし鳥害、太陽熱の熱気による焼け、冷夏による生育不良等から保護して農産物の品質向上に寄与する農産物保護用被覆材、この被覆材の製造方法、並びにこの被覆材を使用する農産物保護用袋及び農産物保護用覆いに関する。   The present invention covers grapes, mandarin oranges, apples, pears, peaches and other fruits, vegetables, flowers, and other agricultural products produced by outdoor cultivation or house cultivation, or covers all or part of the plant to produce these agricultural products. For protecting agricultural products from rainwater, pests and birds, burning by solar heat, poor growth due to cold summer, etc., and contributing to improving the quality of agricultural products, a method for producing this coating material, and using this coating material The present invention relates to agricultural product protection bags and agricultural product protection covers.

従来、ぶどう、みかん、りんご、梨、桃等の果実は、果実一個ずつないし一房ずつに紙製の袋を被せて雨水や病害虫等から保護していた。この紙製の袋は、水に濡れて破れないように、パラフィンやオレフィン系樹脂をコーティングするなどの撥水加工が施されるために、袋は通気性を失い、そのために外気との接触が遮断されてカビや雑菌が繁殖する原因となるばかりでなく、特に夏場の暑い日中には熱気が袋の内部に滞り、この熱気によって袋上方部と接触する果実の部分に焼けが発生する問題があった。また、太陽熱による熱気を遮断するためにフィルムなどの表面に蒸着により金属膜を形成する方法もあるが、この場合、同時に可視光や紫外線なども遮蔽されるために植物の生長を阻害する等の悪影響を与えるという問題がある。   Traditionally, fruits such as grapes, mandarin oranges, apples, pears and peaches have been protected from rainwater, pests, etc. by covering each fruit or bunch with a paper bag. This paper bag is subjected to water-repellent treatment such as coating with paraffin or olefin resin so that it does not break when wet with water, so the bag loses air permeability and is therefore not in contact with outside air. Not only will it be blocked and the mold and germs will propagate, but the hot air will stay inside the bag, especially during the hot summer days, and this heat will burn the fruit that comes into contact with the upper part of the bag. was there. In addition, there is a method of forming a metal film by vapor deposition on the surface of a film or the like in order to block the heat generated by solar heat. In this case, visible light, ultraviolet rays, etc. are simultaneously shielded so that plant growth is inhibited. There is a problem of adverse effects.

一方、可視光に対して透明、赤外光に対してカットオフ効果を有する膜と、その形成材に関する発明（特許文献１）並びに近赤外線カットフィルター形成用組成物及び近赤外線カットフィルターに関する発明が開示されている（特許文献２）。前記赤外線カットオフ又は近赤外線カットフィルターは、錫ドープ酸化インジウム（ＩＴＯ）やアンチモンドープ酸化錫（ＡＴＯ）等の物質を含む組成物乃至塗料であり、これらの組成物等を対象基材に塗布し、印刷し、積層もしくは包囲する方法により適用される。また、近赤外線フィルター（特許文献３）、近赤外線吸収材料（特許文献４）、透明熱可塑性樹脂組成物及びこれを用いた熱戦遮蔽性グレージング材（特許文献５）が開示されている。しかし、ハウジングの窓、屋根材、壁材などの基材の一面に前記組成物等を塗布することによって、冷暖房の効率改善効果はあるものの、農産物保護用袋及び農産物保護用覆いのように農産物に被せ又は覆う農産物保護用被覆材にあっては、太陽熱若しくは外気温がフィルムの熱伝導によって農産物に伝わるために、熱焼け等を防止することは不十分であり問題があった。   On the other hand, an invention relating to a film transparent to visible light and having a cutoff effect to infrared light, a material for forming the film (Patent Document 1), a composition for forming a near infrared cut filter, and an invention relating to a near infrared cut filter It is disclosed (Patent Document 2). The infrared cut-off or near-infrared cut filter is a composition or paint containing a substance such as tin-doped indium oxide (ITO) or antimony-doped tin oxide (ATO), and these compositions are applied to the target substrate. Applied by the method of printing, laminating or surrounding. Moreover, a near-infrared filter (Patent Document 3), a near-infrared absorbing material (Patent Document 4), a transparent thermoplastic resin composition, and a thermal warpage glazing material using the same (Patent Document 5) are disclosed. However, by applying the composition etc. to one side of the base material such as housing window, roofing material, wall material, etc., there is an effect of improving the efficiency of air conditioning, but agricultural products such as agricultural product protection bags and agricultural product protection covers In the covering material for protecting agricultural products that covers or covers the sun, since the solar heat or the outside air temperature is transmitted to the agricultural products by the heat conduction of the film, it is insufficient to prevent the heat burn and the like.

特開平７−７０４８２号公報JP-A-7-70482 特開平９−３２４１４４号公報Japanese Patent Laid-Open No. 9-324144 特開平１０−６２６２０号公報JP-A-10-62620 特開２００５−１２０３１５号公報JP 2005-120315 A 特開２０００−２３４０６６号公報JP 2000-234066 A

本願発明は、前記の問題点を解消するために、複数枚の合成樹脂製フィルム乃至シートを重ね合わせて、全面に多数の通気性を有する微細孔を穿設し、微細孔の周縁部においてフィルム乃至シート同士を接合し、接合部以外の部分における複数枚の合成樹脂製フィルム乃至シートの中間部に空気若しくは空気と近赤外線遮蔽性物質を介在させることによって、農産物への熱伝導を遮断して内部の温度上昇を防止し、雨水、病害虫ないし鳥害等から保護する農産物保護用被覆材、この被覆材の製造方法、並びにこの被覆材を使用する農産物保護用袋及び農産物保護用覆いを提供することを目的とするものである。   In order to solve the above-mentioned problems, the present invention is provided by laminating a plurality of synthetic resin films or sheets to form a large number of air permeable fine holes on the entire surface, and at the peripheral edge of the fine holes. Or by joining sheets together, and interposing air or air and a near-infrared shielding substance in the middle part of a plurality of synthetic resin films or sheets in a part other than the joined part, thereby blocking heat conduction to agricultural products. Providing a protective cover for agricultural products that protects against internal temperature rise and protects against rainwater, pests and birds, a method for producing the covering, and a protective bag for agricultural products and a protective cover for agricultural products using the covering It is for the purpose.

本発明は、前記の課題を解決するために、本発明は、複数枚の合成樹脂製フィルム乃至シートの中の何れかのフィルム乃至シートにおいて、該フィルム乃至シートの少なくとも片面に近赤外線遮蔽性物質を含む膜を形成し、この膜を形成した面を内側にして重ね合わせ、重ね合わされたフィルム乃至シートの中間部に空気を介在させて全面に多数の通気性を有する微細孔を穿設し、係る微細孔の周縁部においてフィルム乃至シート同士を接合してなることを特徴とする農産物保護用被覆材とする（請求項１）。   In order to solve the above-mentioned problems, the present invention provides a near-infrared shielding substance on at least one surface of a film or sheet of a plurality of synthetic resin films or sheets. Is formed, and the surface on which the film is formed is overlapped, and air is interposed in the intermediate portion of the overlapped film or sheet, and a large number of fine holes having air permeability are formed on the entire surface. A film or sheet is bonded to each other at the peripheral edge of the fine hole, thereby providing an agricultural product protective covering material (claim 1).

また、前記の課題を解決するために、本発明は、複数枚の合成樹脂製フィルム乃至シートを重ね合わせ、重ね合わされたフィルム乃至シートの中間部に近赤外線遮蔽性物質と空気を介在させて全面に多数の通気性を有する微細孔を穿設し、係る微細孔の周縁部においてフィルム乃至シート同士を接合してなることを特徴とする農産物保護用被覆材とする（請求項２）。   Further, in order to solve the above-mentioned problems, the present invention superimposes a plurality of synthetic resin films or sheets, and the entire surface of the overlapped film or sheet with a near-infrared shielding substance and air interposed therebetween. A large number of fine holes having air permeability are formed in the outer periphery, and a film or sheet is joined to each other at the periphery of the fine holes.

また、前記の課題を解決するために、本発明は、複数枚の合成樹脂製フィルム乃至シートを重ね合わせ、重ね合わされたフィルム乃至シートの中間部に空気を介在させて全面に多数の通気性を有する微細孔を穿設し、係る微細孔の周縁部においてフィルム乃至シート同士を接合してなることを特徴とする農産物保護用被覆材とする（請求項３）。   Further, in order to solve the above-mentioned problems, the present invention provides a plurality of synthetic resin films or sheets stacked, and air is interposed in the intermediate portion of the stacked films or sheets so that a large number of air permeability is provided on the entire surface. An agricultural product-protecting covering material is formed by drilling the micropores having them and joining the films or sheets together at the peripheral edge of the micropores (Claim 3).

また、前記の課題を解決するために、本発明は、複数枚の合成樹脂製フィルム乃至シートの片面又は両面に、近赤外線遮蔽性物質からなる粉末を含む膜を形成する工程と、前記合成樹脂製フィルム乃至シートの前記膜を形成した面を内側にして重ね合わせ、その中間に空気を含ませた状態で前記フィルム乃至シートの全面に熱溶融により多数の通気性を有する微細孔を穿設するとともに、該微細孔の周縁部を溶融固化して前記フィルム乃至シートを接合する工程と、を備えることを特徴とする農産物保護用被覆材の製造方法とする（請求項４）。   In order to solve the above problems, the present invention includes a step of forming a film containing a powder made of a near-infrared shielding material on one or both surfaces of a plurality of synthetic resin films or sheets, and the synthetic resin. The film-formed sheet or sheet is laminated with the surface on which the film is formed on the inside, and a large number of air-permeable fine holes are formed by hot melting in the entire surface of the film or sheet with air included in the middle. And a step of melting and solidifying the peripheral edge portion of the micropores and joining the film or sheet to form a method for producing a covering material for protecting agricultural products (claim 4).

また、前記の課題を解決するために、本発明は、複数枚の合成樹脂製フィルム乃至シートを重ね合わせるとともに、その重ね合わせ面に空気を吹き付ける、近赤外線遮蔽性物質を含む粉末若しくは近赤外線遮蔽性物質を含む液体を空気とともに吹き付ける、又は前記粉末若しくは液体を散布する、の中の何れか一種からなる工程と、重ね合わされた前記フィルム乃至シートの全面に熱溶融により多数の通気性を有する微細孔を穿設するとともに、該微細孔の周縁部を溶融固化してフィルム乃至シートを接合する工程と、を備えることを特徴とする農産物保護用被覆材の製造方法とする（請求項５）。   In order to solve the above-mentioned problems, the present invention provides a powder containing a near-infrared shielding material or a near-infrared shielding, in which a plurality of synthetic resin films or sheets are overlaid and air is blown onto the overlapping surface. A process comprising any one of spraying a liquid containing an active substance together with air, or spraying the powder or liquid, and a fine material having a large number of air permeability by thermal melting on the entire surface of the laminated film or sheet. And a step of melting and solidifying the peripheral edge of the fine hole to join a film or sheet, and a method for producing a covering material for protecting agricultural products (Claim 5).

また、前記の課題を解決するために、本発明は、果実、野菜、花等の農産物に被せて農産物を保護するための袋であって、前記の何れかに記載の農産物保護用被覆材を用い、少なくとも一方に開口する開口部を有することを特徴とする農産物保護用袋とすることが好ましい（請求項６）。   In order to solve the above problems, the present invention provides a bag for protecting agricultural products by covering agricultural products such as fruits, vegetables, flowers, etc., and the agricultural product protecting covering material according to any one of the above It is preferable to use the agricultural product protection bag characterized in that it has an opening opening at least on one side (claim 6).

また、前記の課題を解決するために、本発明は、果実、穀物、野菜及び花等の農産物を保護するための覆いであって、前記の何れかに記載の農産物保護用被覆材を帯状に形成し、畝状に植えられた植物に連続して渡して線条材等で全体を固定し、前記農産物がカバーされる状態で植物の全体乃至一部を覆い、前記フィルム乃至シートの下端部を下方に垂下させるか、又は前記フィルム乃至シートの下端部を地面に固定してなることを特徴とする農産物保護用覆いとすることが好ましい（請求項７）。   In order to solve the above problems, the present invention provides a cover for protecting agricultural products such as fruits, cereals, vegetables and flowers, and the agricultural product-protecting covering material according to any one of the above is formed in a belt shape. Formed, passed continuously to the plant planted in a cage shape, fixed with a wire rod, etc., covered with the agricultural products, covering the whole or a part of the plant, the lower end of the film or sheet It is preferable that the agricultural product protection cover is formed by hanging down the bottom of the film or sheet, and fixing the lower end of the film or sheet to the ground (Claim 7).

本発明の農産物保護用被覆材は、前記のように複数枚の合成樹脂製フィルム乃至シートを重ね合わせて、全面に多数の通気性を有する微細孔を穿設し、微細孔の周縁部においてフィルム乃至シート同士を接合し、接合部以外の部分における複数枚の合成樹脂製フィルム乃至シートの中間部に近赤外線遮蔽性物質と空気を介在させて、両フィルム乃至シートを離隔させることによって、太陽光に直接曝されて熱せられた表面側フィルム乃至シートと農産物との接点において、遮熱・断熱作用により裏面側のフィルム乃至シートに接する農産物の太陽熱による焼けを防止すると共に、冷夏に際しては介在する空気の保温効果によって農産物を病気や発育不良等から保護する。   The covering for agricultural product protection according to the present invention comprises a plurality of synthetic resin films or sheets stacked as described above, and a large number of air-permeable fine holes are formed on the entire surface. Or by joining the sheets and separating the two films or sheets by interposing a near-infrared shielding substance and air in the middle part of a plurality of synthetic resin films or sheets in a portion other than the joining portion. At the point of contact between the surface film or sheet heated directly by exposure to the agricultural product and the agricultural product that is in contact with the film or sheet on the back side by heat insulation and heat insulation, the agricultural product that is in contact with the film or sheet on the back surface is prevented from being burned by the solar heat. Protects agricultural products from illness and poor growth by keeping warm.

更に、多数の通気性を有する微細孔を通して、外部の空気を取り入れ、且つ内部の空気を外部に排出する空気の循環作用により農産物のムレによるカビや細菌の繁殖を防止し、雨水、病害虫ないし鳥害等から保護する効果を奏する。また、複数のフィルム乃至シートの中間に介在する空気がクッションの役割を果たして完熟果実などが袋内に落下しても損傷を未然に防止する効果を奏する。更に、前記の近赤外線遮蔽性物質がフィルム乃至シートの中間に挟持された農産物保護用被覆材は、外部からの摩擦や雨の影響などが受けにくいので長期間効果が持続する。フィルム乃至シートの表面が埃などで汚れた場合にも、水で洗い流して繰り返し使用でき、その際、洗浄によって近赤外線遮蔽性物質が落ちたり洗剤で変質することがないので効果が低減することもない。係る農産物保護用被覆材を使用したこの被覆材を使用する農産物保護用袋及び農産物保護用覆いも前記と同様の効果を奏する。   Furthermore, the circulation of the air that takes in outside air through a large number of air-permeable micropores and exhausts the inside air to the outside prevents the growth of mold and bacteria due to the stuffiness of the agricultural products, rainwater, pests and birds It has the effect of protecting against harm. Moreover, even if the air intervening between the plurality of films or sheets plays a role of a cushion and ripened fruits fall into the bag, there is an effect of preventing damage. Furthermore, the agricultural product protection covering material in which the near infrared ray shielding substance is sandwiched between films or sheets is not easily affected by external friction or rain, and thus has a long-term effect. Even if the surface of the film or sheet is soiled with dust or the like, it can be washed away with water and used repeatedly. In this case, the near infrared shielding material does not fall off or be altered by the detergent, so the effect may be reduced. Absent. The agricultural product protection bag and the agricultural product protection cover using this agricultural product protection coating material have the same effects as described above.

本発明を実施するための最良の形態について、以下に詳細に説明する。本実施の形態に係る農産物保護用被覆材は、複数枚の合成樹脂製フィルム乃至シート（以下フィルム等と略記する）のうちの何れか少なくとも片面に近赤外線遮蔽性物質を含む膜を形成し、この膜を形成した面を内側にして重ね合わせ、重ね合わされたフィルム等の中間部に空気を介在させて全面に多数の通気性を有する微細孔を穿設し、係る微細孔の周縁部においてフィルム等同士を接合してなる。前記の合成樹脂製フィルム等は、植物育成に必要な紫外線及び可視光線を透過する、透明、半透明ないし部分透明なものが好ましい。   The best mode for carrying out the present invention will be described in detail below. The agricultural product-protecting covering material according to the present embodiment forms a film containing a near-infrared shielding substance on at least one side of any of a plurality of synthetic resin films or sheets (hereinafter abbreviated as films), The film-formed surface is overlapped on the inside, and air is interposed in the intermediate part of the overlapped film or the like, and a large number of air-permeable fine holes are formed on the entire surface, and the film is formed at the peripheral part of the fine holes. Etc. are joined together. The synthetic resin film or the like is preferably transparent, translucent or partially transparent, which transmits ultraviolet rays and visible light necessary for plant growth.

農産物保護用被覆材を構成するフィルム等の素材は特に限定されるものではないが、例えば、ポリプロピレン（ＰＰ）フィルム、二軸延伸ポリプロピレン（ＯＰＰ）フィルム、ポリエチレン（ＰＥ）フィルム、一般用ポリスチレン（ＧＰ−ＰＳ）フィルム、耐衝撃性ポリスチレン（ＨＩ−ＰＳ）フィルム、二軸延伸ポリスチレン（ＯＰＳ）フィルム、ポリエステル（ＰＥＴ）フィルム、ポリカーボネート（ＰＣ）フィルム、ポリビニルアルコール（ＰＶＡ）フィルム、ポリ塩化ビニル（ＰＶＣ）フィルム、アイオノマーフィルム、セルロース系プラスチックフィルム、熱可塑性エラストマーフィルム等から使用条件に応じて選択することができる。更に、前記単一フィルムの他に共押出しフィルムや接着用樹脂層を介したドライラミネーション又はサンドラミネーションで貼り合わせた多層フィルムであってもよい。また、複数枚の合成樹脂製フィルム等は同種類の素材が好ましいが、熱溶融により微細孔を穿設することによって両フィルム等が接合する限りにおいて異種類の素材であってもよい。   A material such as a film constituting the agricultural product protection covering material is not particularly limited. For example, a polypropylene (PP) film, a biaxially oriented polypropylene (OPP) film, a polyethylene (PE) film, a general-purpose polystyrene (GP) -PS) film, high impact polystyrene (HI-PS) film, biaxially oriented polystyrene (OPS) film, polyester (PET) film, polycarbonate (PC) film, polyvinyl alcohol (PVA) film, polyvinyl chloride (PVC) A film, an ionomer film, a cellulosic plastic film, a thermoplastic elastomer film, or the like can be selected according to use conditions. Furthermore, in addition to the single film, a multilayer film bonded by dry lamination or sand lamination through a co-extruded film or an adhesive resin layer may be used. The plurality of synthetic resin films and the like are preferably the same type of material, but may be different types of materials as long as the two films and the like are joined by forming fine holes by thermal melting.

前記フィルム等は、通気性を有し、且つ、雨水などが通しにくいものがよいことから、前記微細孔の孔径は、２０μｍ、好ましくは７０μｍ以上あればガス透過性が確保できる反面、１ｍｍを越えると透水性を生じる可能性があり、而して、微細孔の孔径は、２０μｍ〜１ｍｍ、好ましくは７０μｍ〜４００μｍ、特に好ましくは９０μｍ〜２００μｍの範囲がよい。より詳細には、図１（ａ）及び図１（ｂ）に示すように、前記微細孔の形状は特に限定されないがテーパー状の貫通孔が好ましく、テーパー状の微細孔の広い方の開口部の周縁部には、熱溶融による穿孔の際にできた、やや突状に盛り上がった凸部が形成されている。凸部が形成された面を農産物の当接する側にして農産物保護用袋又は農産物保護用覆いを作成すれば、凸部と農産物の接点で空気流が生じて通気性をより向上させる効果がある。凸部が形成された面を外側にするか内側にするかは使用する農産物の種類などに応じて適宜選択すればよい。   Since the film or the like should be air permeable and difficult to pass rainwater or the like, the pore diameter of the micropores is 20 μm, preferably 70 μm or more, while gas permeability can be secured, but it exceeds 1 mm. Therefore, the pore diameter of the micropores is 20 μm to 1 mm, preferably 70 μm to 400 μm, and particularly preferably 90 μm to 200 μm. More specifically, as shown in FIGS. 1 (a) and 1 (b), the shape of the fine hole is not particularly limited, but a tapered through hole is preferable, and the wider opening of the tapered fine hole is preferable. On the peripheral edge portion of the ridge, a convex portion that is raised in a slightly projecting shape is formed. If an agricultural product protection bag or an agricultural product protection cover is created with the surface on which the convex part is formed as the side where the agricultural product abuts, an air flow is generated at the contact point between the convex part and the agricultural product, thereby improving the air permeability. . Whether the surface on which the convex portion is formed should be on the outside or the inside may be appropriately selected according to the type of agricultural product used.

微細孔を穿孔する方法は、複数枚のフィルム等が接合する限りにおいて、特に限定されるものではないが、例えば、複数枚のフィルム等を、融点以上に加熱した熱針を植えた駆動ロール又は突起を備えたエンボスロールとバックアップロールの間に挟持し、ライン速度で同調させつつ多数の微細孔を溶融穿孔する。これ以外に、フィルム等を加熱して内側から吸引し、円筒状ロールの内面に沿って吸引されたフィルム部を切断して穿孔してもよく、前記の円筒状ロールに設けた貫通孔の内側から加熱ガス等を噴出して穿孔してもよく、多数の窪みを備えた円筒状ロールの表面にフィルムを連続して沿わせ、該フィルムの表面をガスバーナー火炎等で加熱し、前記の窪み部分に当接したフィルムが内部応力を受けて収縮することによって穿孔してもよい。これ以外にも微細孔の周縁が熱溶融して接合されるものであればあらゆる穿孔方法が含まれる。   The method of drilling the fine holes is not particularly limited as long as a plurality of films or the like are joined, for example, a driving roll in which a plurality of films or the like are planted with a hot needle heated to a melting point or higher, or It is sandwiched between an embossing roll provided with protrusions and a backup roll, and a large number of fine holes are melt-drilled while being synchronized with the line speed. In addition to this, the film or the like may be heated and sucked from the inside, and the film portion sucked along the inner surface of the cylindrical roll may be cut and perforated, and the inside of the through hole provided in the cylindrical roll The film may be perforated by ejecting heated gas or the like from the above, and the film is continuously placed on the surface of a cylindrical roll having a number of depressions, and the surface of the film is heated with a gas burner flame or the like, The film may be perforated by contracting the film in contact with the portion under internal stress. Other than this, any drilling method may be included as long as the peripheral edge of the fine hole is thermally melted and joined.

本発明で使用される近赤外線遮蔽性物質としては、例えば、１）錫ドープ酸化インジウム（ＩＴＯ）、アンチモンドープ酸化錫（ＡＴＯ）等の金属酸化物、２）フタロシアニン系、アントラキノン系、ナフトキノン系、フタロシアニン系等の共役二重結合を有する環状化合物型の近赤外線遮蔽性物質、３）ジチオール系、メルカプトナフトール系等のニッケル錯塩又はその他の有機金属錯塩等が好ましい。アクリル系、ビニル系、エチレン酢ビ系等の透明樹脂をマトリックスとし、前記近赤外線遮蔽性物質と少量の分散剤を溶剤又は水とアルコール等の溶媒に分散させて調整した溶剤系又は水系の組成物をフィルム等に塗布し、乾燥後に組成物の塗布面側に他のフィルム等を重ね、その合わせ面に空気が入り込むギャップを設けた状態でフィルム等を接合する。また、前記近赤外線遮蔽性物質を含む組成物又は近赤外線遮蔽性物質の粉末を直接フィルム等に吹き付け又は散布して２枚のフィルム等中間にサンドイッチ状に挟み込んでもよい。必要に応じて予めフィルム等に接着剤を塗布しておいてもよい。   Examples of the near infrared shielding material used in the present invention include 1) metal oxides such as tin-doped indium oxide (ITO) and antimony-doped tin oxide (ATO), 2) phthalocyanine-based, anthraquinone-based, naphthoquinone-based, Cyclic compound type near-infrared shielding materials having a conjugated double bond such as phthalocyanine, 3) nickel complex salts such as dithiol and mercaptonaphthol groups, and other organometallic complex salts are preferred. A solvent-based or water-based composition prepared by dispersing a transparent resin such as acrylic, vinyl, or ethylene vinyl acetate as a matrix, and dispersing the near-infrared shielding substance and a small amount of a dispersant in a solvent or a solvent such as water and alcohol. An object is applied to a film or the like, and after drying, another film or the like is stacked on the application surface side of the composition, and the film or the like is bonded in a state in which a gap is provided on the mating surface so that air enters. Alternatively, the composition containing the near-infrared shielding substance or the near-infrared shielding substance powder may be directly sprayed or dispersed on a film or the like and sandwiched between two films or the like. You may apply | coat an adhesive agent to a film etc. beforehand as needed.

一般に７８０ｎｍ〜１ｍｍの波長域を赤外線と称し、赤外線を区分して、７８０〜３０００ｎｍの波長域を近赤外線、３０００〜１５０００ｎｍの波長域を中赤外線、１５０００ｎｍ以上の波長域を遠赤外線と称する場合がある。本発明の農産物保護用被覆材では、前記赤外線の中の可視光に近い近赤外線を吸収する反面、植物の生育を促進する紫外線や可視光線を透過するように構成される。このように可視光に近い近赤外線は熱線のうちでも最も物体に吸収されやすいことから、係る近赤外線を吸収することによって農産物の熱焼けを効果的に防ぐこととなる。但し、本発明の農産物保護用被覆材は近赤外線を限定して吸収するのではなく、近赤外線とともに中赤外線ないし遠赤外線を吸収するものであってもよい。更に、複数枚からなるフィルム等の中間に近赤外線遮蔽性物質の粉末やその塗膜を挟持する際に、空気を介在させることによって、重ね合わされたフィルム等がそれぞれ接し難くし、且つ介在する空気の断熱効果によって表面側のフィルム等の熱が農産物側のフィルム等に伝導しないようにして、農産物の熱焼けを防止するように構成される。   In general, the wavelength range of 780 nm to 1 mm is referred to as infrared, and the infrared is divided, the wavelength range of 780 to 3000 nm is referred to as near infrared, the wavelength range of 3000 to 15000 nm is referred to as mid infrared, and the wavelength range of 15000 nm or higher is referred to as far infrared. is there. The covering for protecting agricultural products according to the present invention absorbs near-infrared rays close to visible light in the infrared rays, but transmits ultraviolet rays and visible rays that promote plant growth. As described above, near infrared rays close to visible light are most easily absorbed by an object even among heat rays, and thus the agricultural products are effectively prevented from being burned by absorbing such near infrared rays. However, the agricultural product-protecting covering material of the present invention does not limit and absorb near infrared rays, but may absorb medium infrared rays or far infrared rays together with near infrared rays. Furthermore, when sandwiching the near-infrared shielding substance powder or its coating film between a plurality of films or the like, the air that interposes each other is made difficult to come into contact with each other by interposing air. Due to the heat insulation effect, heat of the film on the front side is not conducted to the film on the agricultural product side, and the agricultural product is prevented from being burned.

以下に実施例を挙げて本発明を更に詳細に説明するが、本発明はこれらの実施例に限定されるものではない。
実施例１
１）近赤外線遮蔽性物質として、大日本塗料株式会社製の商品サンプルを用いた。同サンプルは、ＩＴＯ、アクリル系樹脂、分散剤をＭＥＫ及びキシレンに均一に分散し、固形分濃度が２０重量％の常温乾燥タイプの組成物からなる。
本実施例では、同サンプル２０重量％濃度の組成物と、同サンプルを酢酸ブチルとシクロヘキサンで希釈して固形分濃度を３重量％にした組成物をそれぞれ準備した。
２）フィルム等として、３０μｍ厚の透明ＯＰＰフィルムを使用した。 The present invention will be described in more detail with reference to the following examples, but the present invention is not limited to these examples.
Example 1
1) A product sample manufactured by Dainippon Paint Co., Ltd. was used as a near infrared shielding material. The sample is a room temperature dry type composition in which ITO, an acrylic resin, and a dispersant are uniformly dispersed in MEK and xylene, and the solid content concentration is 20% by weight.
In this example, a composition having a concentration of 20% by weight of the sample and a composition having a solid content concentration of 3% by weight diluted with butyl acetate and cyclohexane were prepared.
2) A transparent OPP film having a thickness of 30 μm was used as a film or the like.

先ず、３０μｍ厚の長尺ＯＰＰフィルム１１ａを２ピース用意して、一方のＯＰＰフィルム１１ａには、片面に固形分濃度が２０重量％の組成物を０．２ｇ／ｍ２（ｗｅｔ％）塗布し、他方のＯＰＰフィルム１１ａには、固形分濃度が３重量％の組成物を０．２ｇ／ｍ２（ｗｅｔ％）塗布して常温で乾燥させて実験用サンプルとした。次に、図２（ａ）に示すように、前記の２種類の組成物を塗布したＯＰＰフィルム１１ａのコーティング面Ｃに、３０μｍ厚のＯＰＰフィルム１１ｂをそれぞれ重ね合わせつつ、融点（約２００℃）以上の熱針を備えた針ロール２１とバックアップロール２２の間（予め空気が入り込む程度のギャップに設定されている）に挟持し、ライン速度で同調させて多数の微細孔１５を溶融穿孔して両フィルムを接合し、本発明の農産物保護用被覆材１を得た。 First, two pieces of a long OPP film 11a having a thickness of 30 μm are prepared, and one OPP film 11a is coated with 0.2 g / m 2 (wet%) of a composition having a solid content of 20% by weight on one side. The other OPP film 11a was coated with 0.2 g / m 2 (wet%) of a composition having a solid content concentration of 3% by weight and dried at room temperature to obtain an experimental sample. Next, as shown in FIG. 2A, a 30 μm thick OPP film 11b is superimposed on the coating surface C of the OPP film 11a coated with the above two types of compositions, and a melting point (about 200 ° C.). It is sandwiched between the needle roll 21 and the backup roll 22 equipped with the above hot needles (set to a gap that allows air to enter in advance), and melts and drills a large number of fine holes 15 in synchronization with the line speed. Both films were joined to obtain the agricultural product protection coating material 1 of the present invention.

実施例２
図２（ｂ）は、実施例２に係る農産物保護用被覆材１の穿孔装置を示す説明図である。実施例１において、商品サンプルに代えて、ＩＴＯの粉末（顆粒状でもよい）を使用し、図２（ｂ）に示すように、係るＩＴＯの粉末を前記穿孔工程において、両ＯＰＰフィルム１１，１１の中間部にノズル２０又は散布器２０から空気とともに吹き付け又は散布してＯＰＰフィルム１１，１１の中間にＩＴＯの粉末を挟持させた状態でＯＰＰフィルム１１，１１を溶融穿孔した以外は実施例１記載と同様にして本発明の農産物保護用被覆材１を得た。また、ＩＴＯを含む液体組成物を吹き付ける場合は、実施例１で使用した組成物を更に溶剤で希釈し低粘度に調整したものを用いることがノズルの目詰まりを防止する点から好ましい。 Example 2
FIG. 2B is an explanatory view showing a drilling device for the agricultural product protection covering material 1 according to the second embodiment. In Example 1, ITO powder (which may be granular) may be used instead of the product sample, and as shown in FIG. 2 (b), the ITO powder is subjected to the two OPP films 11, 11 in the perforating step. Example 1 except that the OPP films 11, 11 are melted and perforated in the state where the ITO powder is sandwiched between the OPP films 11, 11 by spraying or spraying with air from the nozzle 20 or the sprayer 20 to the middle part of the OPP film 11, 11. In the same manner as above, the agricultural product protecting coating material 1 of the present invention was obtained. Moreover, when spraying the liquid composition containing ITO, it is preferable from the point which prevents clogging of a nozzle to use what further diluted the composition used in Example 1 with the solvent, and adjusted to low viscosity.

実施例３
実施例２において、両ＯＰＰフィルム１１，１１の中間部にＩＴＯの粉末を散布せずに
針ロール２１とバックアップロール２２の間（予め空気が入り込む程度のギャップに設定されている）に挟持し、ライン速度で同調させて多数の微細孔１５を溶融穿孔して両フィルムを接合した以外は実施例２と同様にして両ＯＰＰフィルム１１，１１の中間部に空気が介在する農産物保護用被覆材１を得た（図示せず）。 Example 3
In Example 2, it is sandwiched between the needle roll 21 and the backup roll 22 (preliminarily set to a gap that allows air to enter) without spraying ITO powder on the middle part of both OPP films 11, 11, Agricultural product protection covering material 1 in which air is interposed between the two OPP films 11 and 11 in the same manner as in Example 2 except that both films are joined by melting and punching a large number of fine holes 15 in synchronization with the line speed. (Not shown).

図１（ａ）は、実施例１に係る農産物保護用被覆材１を示す断面図であり、ＯＰＰフィルム１１ａの内側に近赤外線遮蔽性物質を含む膜１２が形成され、この面に空気１４が介在してＯＰＰフィルム１１ｂが重ねられ、全面に微細孔１５が穿設されている。微細孔１５の形状はテーパー状をなし、このテーパー状微細孔の広い方の開口部（フィルム１１ｂ面側）の周縁部には、熱溶融による穿孔の際に、やや突状に盛り上がった凸部１６が形成され、ＯＰＰフィルム１１ａとＯＰＰフィルム１１ｂは溶着部１７によって接合している。この接合部以外にはＯＰＰフィルム１１ｂと近赤外線遮蔽性物質を含む膜１２との間に空気１４が介在するので、ＯＰＰフィルム１１ａ，１１ｂが互いに接触し難い構成となっている。また、近赤外線遮蔽性物質を含む膜１２が形成されたフィルム１１ａ面を外側に向けて使用する方が近赤外線遮蔽効果が増す。ＯＰＰフィルム１１ａ面に凸部１６が形成されるようにするには、穿孔工程を示す図２（ａ）において、ＯＰＰフィルム１１ａと１１ｂを交換し、ＯＰＰフィルム１１ａのコーティング面Ｃを下方に向けて配置すればよい。   FIG. 1A is a cross-sectional view showing the agricultural product protection covering material 1 according to Example 1, a film 12 containing a near-infrared shielding substance is formed inside the OPP film 11a, and air 14 is formed on this surface. The OPP film 11b is overlapped, and fine holes 15 are formed on the entire surface. The shape of the microhole 15 is a taper, and a convex portion that rises slightly in a projecting manner at the time of perforation by heat melting is formed on the peripheral edge of the wider opening (the film 11b surface side) of the tapered microhole. 16 is formed, and the OPP film 11 a and the OPP film 11 b are joined by the welded portion 17. Since the air 14 is interposed between the OPP film 11b and the film 12 containing the near-infrared shielding substance other than the joint portion, the OPP films 11a and 11b are difficult to contact each other. Moreover, the near-infrared shielding effect increases when the film 11a surface on which the film 12 containing a near-infrared shielding material is formed is directed outward. In order to form the convex portion 16 on the surface of the OPP film 11a, in FIG. 2A showing the perforation process, the OPP films 11a and 11b are exchanged, and the coating surface C of the OPP film 11a is directed downward. What is necessary is just to arrange.

図１（ｂ）は、実施例２に係る農産物保護用被覆材１を示し、近赤外線遮蔽性物質を含む膜１２と空気１４に代えてＩＴＯ粉末空気混入層１３が形成されている以外は図１（ａ）に示す実施例１に係る農産物保護用被覆材１と同様である。
実施例３に係る農産物保護用被覆材１は、実施例１に係る農産物保護用被覆材１（図１（ａ））において、近赤外線遮蔽性物質を含む膜１２が形成されずに空気が介在している以外は実施例１に係る農産物保護用被覆材１（図１（ａ））と同様である（図示せず）。 FIG.1 (b) shows the agricultural-material protection coating | covering material 1 which concerns on Example 2, It replaces with the film | membrane 12 containing a near-infrared shielding substance, and the air 14, and is a figure except the ITO powder air mixing layer 13 being formed. It is the same as the covering 1 for agricultural products protection based on Example 1 shown to 1 (a).
The agricultural product protection coating material 1 according to Example 3 is the same as the agricultural product protection coating material 1 according to Example 1 (FIG. 1 (a)), but the film 12 containing the near-infrared shielding material is not formed and air is interposed. Except for this, it is the same as the agricultural product protection covering material 1 (FIG. 1A) according to Example 1 (not shown).

＜実験例＞
前記実施例に記載した実験用サンプル及び農産物保護用被覆材をＦＴ−ＮＩＲ及びＦＴ−ＩＲを使用し、近赤外領域及び中赤外領域における各赤外線の透過率を測定した。結果を図３及び４に示す。透過率は吸収材の塗布したフィルムと塗布していないフィルムの差分とした。 <Experimental example>
FT-NIR and FT-IR were used for the experimental sample and the agricultural product protection covering material described in the examples, and the transmittance of each infrared ray in the near infrared region and the mid infrared region was measured. The results are shown in FIGS. The transmittance was defined as the difference between the film applied with the absorbent and the film not applied.

図３に示すとおり、３重量％濃度の組成物を塗布したフィルムの近赤外線透過率が平均９３％であり、中赤外線透過率が平均９８％であった。図４に示すとおり、２０重量％濃度の組成物を塗布したフィルムの近赤外線透過率が平均４９％であり、中赤外線透過率が平均６９％であった。また、図５に示すように、有孔フィルムに３重量％濃度の組成物を塗布したフィルムの近赤外線透過率が平均９７％であり、中赤外線透過率が平均９６％であった。この結果より、３重量％濃度の組成物でも近赤外線と中赤外線の吸収効果を奏することが確認され、２０重量％濃度の組成物では、近赤外線のほぼ半分強が吸収されることが確認された。   As shown in FIG. 3, the near-infrared transmittance of the film coated with the composition having a concentration of 3% by weight was 93% on average and the average infrared transmittance was 98% on average. As shown in FIG. 4, the near-infrared transmittance of the film coated with the 20% by weight composition was an average of 49%, and the mid-infrared transmittance was an average of 69%. Moreover, as shown in FIG. 5, the near-infrared transmittance of the film which apply | coated the composition of 3 weight% concentration to the perforated film was 97% on the average, and the average infrared transmittance was 96% on the average. From this result, it was confirmed that a composition having a concentration of 3% by weight exhibits an absorption effect of near infrared rays and mid infrared rays, and a composition having a concentration of 20% by weight absorbs almost half of near infrared rays. It was.

＜実用試験例＞
前記実施例で得られた農産物保護用被覆材で農産物保護用袋と農産物保護用覆いを作成して実用試験を行った。図６は、農産物保護用袋の使用状態を示す斜視図であり、図７は、農産物保護用袋の使用状態を示す写真図である。図６において、２は農産物保護用袋であり、農産物保護用袋２をぶどう２３に被せ、針金２２を支持枝２１に巻き付けて農産物保護用袋２を締結した。更に、農産物保護用被覆材を帯状に形成した農産物保護用覆いを作成し、ぶどうがカバーされる状態で樹木の一部を覆い、前記フィルム等の下端部を下方に垂下させた状態で帯状フィルムの両端部を杭などに固定した（図８参照）。この図では樹木中間部の果実部を覆っているが、樹木の頂上部から樹木等植物の全体を覆って端部を地面に固定したものも本発明に含まれる。 <Practical test example>
An agricultural product protection bag and an agricultural product protection cover were prepared using the agricultural product protection coating material obtained in the above-described example, and a practical test was performed. FIG. 6 is a perspective view showing the state of use of the agricultural product protection bag, and FIG. 7 is a photograph showing the state of use of the agricultural product protection bag. In FIG. 6, reference numeral 2 denotes an agricultural product protection bag. The agricultural product protection bag 2 is covered with a grape 23, the wire 22 is wound around the support branch 21, and the agricultural product protection bag 2 is fastened. In addition, a produce protection cover is formed by forming a produce protection covering material in a band shape, covers a part of the tree in a state where the grape is covered, and a belt-like film in a state where the lower end portion of the film or the like is suspended downward Both ends were fixed to a pile or the like (see FIG. 8). In this figure, the fruit part of the middle part of the tree is covered, but the present invention also includes a part in which the whole part of the plant such as a tree is covered from the top of the tree and the end part is fixed to the ground.

前記農産物保護用袋と農産物保護用覆いについて、長野県と新潟県のワイナリーで７〜８月にかけて図７又は図８に示すように非公開で実用試験を行い、ぶどうの熱焼けの程度を確認した。その結果、３重量％濃度の組成物を塗布した農産物保護用被覆材の方は若干熱焼けが確認されたが、空気を介在させた実施例３の農産物保護用被覆材は殆ど熱焼けが目立たず、２０重量％濃度の組成物を塗布した方は熱焼けが全く確認されなかった。以上の結果から、フィルムへの組成物の塗布量が一定の場合は、組成物中の固形物即ち近赤外線遮蔽性物質の濃度を濃くする程、近赤外線の吸収効果が高まるので、農産物の種類や温度条件に応じて適宜の濃度を選択して使用することが好ましい。   About the agricultural product protection bag and the agricultural product protection cover, a practical test was conducted undisclosed as shown in Fig. 7 or 8 at the wineries in Nagano and Niigata prefectures to confirm the degree of heat burning of the grapes. did. As a result, it was confirmed that the agricultural product protection coating material to which the composition of 3% by weight of the composition was applied was slightly heated, but the agricultural product protection coating material of Example 3 in which air was interposed was almost noticeable. In addition, no heat burn was observed in the case of applying the 20% by weight composition. From the above results, when the coating amount of the composition on the film is constant, the near-infrared absorbing effect increases as the concentration of the solid matter in the composition, that is, the near-infrared shielding substance increases. It is preferable to select and use an appropriate concentration according to the temperature conditions.

本発明に係る農産物保護用被覆材は、農産物の太陽熱による熱焼けを防止し、農産物のムレによるカビや細菌の繁殖が防止されると共に、雨水、病害虫ないし鳥害等から保護する効果を奏するので、農産物の品質と収率の向上に寄与し極めて有用である。   The covering material for protecting agricultural products according to the present invention prevents the thermal burning of agricultural products due to solar heat, prevents the growth of mold and bacteria due to the stuffiness of agricultural products, and also has the effect of protecting against rainwater, pests or bird damage, etc. It contributes to improving the quality and yield of agricultural products and is extremely useful.

（ａ）は、実施例１に係る農産物保護用被覆材を示す断面図であり、（ｂ）は、実施例２に係る農産物保護用被覆材を示す断面図である。(A) is sectional drawing which shows the covering material for agricultural product protection concerning Example 1, (b) is sectional drawing which shows the covering material for agricultural product protection concerning Example 2. FIG. （ａ）は、実施例１に係る農産物保護用被覆材の穿孔装置及び穿孔工程を示す説明図であり、（ｂ）は、実施例２に係る農産物保護用被覆材の穿孔装置及び穿孔工程を示す説明図である。(A) is explanatory drawing which shows the punching apparatus and punching process of the agricultural product protection coating material which concern on Example 1, (b) is the drilling apparatus and drilling process of the agricultural product protection coating material which concerns on Example 2. FIG. It is explanatory drawing shown. 固形物３重量％濃度の組成物を塗布したフィルムの近赤外線・中赤外線透過率を示すグラフ図である。It is a graph which shows the near-infrared and middle-infrared transmittance | permeability of the film which apply | coated the composition of a solid 3weight% density | concentration. 固形物２０重量％濃度の組成物を塗布したフィルムの近赤外線・中赤外線透過率を示すグラフ図である。It is a graph which shows the near-infrared and the mid-infrared transmittance | permeability of the film which apply | coated the composition of the solid substance 20weight% density | concentration. 固形物３重量％濃度の組成物を塗布した有孔フィルムの近赤外線・中赤外線透過率を示すグラフ図である。It is a graph which shows the near-infrared and the mid-infrared transmittance | permeability of the perforated film which apply | coated the composition of solid 3weight% concentration. 本実用試験例に使用した農産物保護用袋の使用状態を示す斜視図である。It is a perspective view which shows the use condition of the agricultural product protection bag used for this practical test example. 本実用試験例に使用した農産物保護用袋の使用状態を示す写真図である。It is a photograph figure which shows the use condition of the agricultural product protection bag used for this practical test example. 本実用試験例における農産物保護用覆いの使用状態を示す写真図である。It is a photograph figure which shows the use condition of the agricultural product protection cover in this practical test example.

符号の説明Explanation of symbols

１：農産物保護用被覆材、２：農産物保護用袋、１１，１１ａ，１１ｂ：ＯＰＰフィルム、１２：近赤外線遮蔽性物質を含む膜、１３：ＩＴＯ粉末空気混入層、：、１４：空気、１５：微細孔、１６：凸部、１７：溶着部、１８：針ロール、１９：バックアップロール、２０：ノズル（散布器）、２１：支持枝、２２：針金、２３：ぶどう
Ｃ：コーティング面 1: Agricultural product protection covering material, 2: Agricultural product protection bag, 11, 11a, 11b: OPP film, 12: Film containing near-infrared shielding material, 13: ITO powder aerated layer, 14: Air, 15 : Fine hole, 16: convex part, 17: welded part, 18: needle roll, 19: backup roll, 20: nozzle (spreader), 21: support branch, 22: wire, 23: grape C: coating surface

Claims (7)

複数枚の合成樹脂製フィルム乃至シートの中の何れかのフィルム乃至シートにおいて、該フィルム乃至シートの少なくとも片面に近赤外線遮蔽性物質を含む膜を形成し、この膜を形成した面を内側にして重ね合わせ、重ね合わされたフィルム乃至シートの中間部に空気を介在させて全面に多数の通気性を有する微細孔を穿設し、係る微細孔の周縁部においてフィルム乃至シート同士を接合してなることを特徴とする農産物保護用被覆材。 In any one of the plurality of synthetic resin films or sheets, a film containing a near-infrared shielding substance is formed on at least one surface of the film or sheet, and the surface on which the film is formed is on the inside. A plurality of fine holes having air permeability are formed on the entire surface by interposing air in the middle part of the overlapped film or sheet, and the film or sheet is joined at the peripheral part of the fine hole. Agricultural product protection covering material. 複数枚の合成樹脂製フィルム乃至シートを重ね合わせ、重ね合わされたフィルム乃至シートの中間部に近赤外線遮蔽性物質と空気を介在させて全面に多数の通気性を有する微細孔を穿設し、係る微細孔の周縁部においてフィルム乃至シート同士を接合してなることを特徴とする農産物保護用被覆材。 A plurality of synthetic resin films or sheets are overlapped, and a plurality of fine holes having air permeability are formed on the entire surface by interposing a near-infrared shielding substance and air in the intermediate portion of the overlapped films or sheets. A covering for protecting agricultural products, wherein a film or a sheet is bonded to each other at a peripheral edge of a fine hole. 複数枚の合成樹脂製フィルム乃至シートを重ね合わせ、重ね合わされたフィルム乃至シートの中間部に空気を介在させて全面に多数の通気性を有する微細孔を穿設し、係る微細孔の周縁部においてフィルム乃至シート同士を接合してなることを特徴とする農産物保護用被覆材。 A plurality of synthetic resin films or sheets are overlaid, and air is interposed in the middle of the overlapped films or sheets so that a large number of air-permeable fine holes are formed on the entire surface. A covering for protecting agricultural products, comprising a film or a sheet joined together. 複数枚の合成樹脂製フィルム乃至シートの片面又は両面に、近赤外線遮蔽性物質からなる粉末を含む膜を形成する工程と、前記合成樹脂製フィルム乃至シートの前記膜を形成した面を内側にして重ね合わせ、その中間に空気を含ませた状態で前記フィルム乃至シートの全面に熱溶融により多数の通気性を有する微細孔を穿設するとともに、該微細孔の周縁部を溶融固化して前記フィルム乃至シートを接合する工程と、を備えることを特徴とする農産物保護用被覆材の製造方法。 A step of forming a film containing a powder made of a near-infrared shielding material on one or both surfaces of a plurality of synthetic resin films or sheets, and a surface of the synthetic resin film or sheet on which the film is formed A plurality of fine holes having air permeability are formed on the entire surface of the film or sheet by heat melting in a state where air is contained in the middle of the film, and the peripheral part of the fine holes is melted and solidified to form the film. Or a step of joining sheets, and a method for producing a covering for protecting agricultural products. 複数枚の合成樹脂製フィルム乃至シートを重ね合わせるとともに、その重ね合わせ面に空気を吹き付ける、近赤外線遮蔽性物質を含む粉末若しくは近赤外線遮蔽性物質を含む液体を空気とともに吹き付ける、又は前記粉末若しくは液体を散布する、の中の何れか一種からなる工程と、重ね合わされた前記フィルム乃至シートの全面に熱溶融により多数の通気性を有する微細孔を穿設するとともに、該微細孔の周縁部を溶融固化してフィルム乃至シートを接合する工程と、を備えることを特徴とする農産物保護用被覆材の製造方法。 A plurality of synthetic resin films or sheets are overlaid and air is blown onto the overlapping surface, a powder containing a near infrared shielding material or a liquid containing a near infrared shielding material is blown with air, or the powder or liquid And spraying a plurality of fine holes having air permeability by thermal melting on the entire surface of the laminated film or sheet, and melting the peripheral edge of the fine holes. Solidifying and joining the film | membrane thru | or sheet | seat, The manufacturing method of the coating material for agricultural product protection characterized by the above-mentioned. 果実、野菜、花等の農産物に被せて農産物を保護するための袋であって、請求項１、２又は３の何れかに記載の農産物保護用被覆材を用い、少なくとも一方に開口する開口部を有することを特徴とする農産物保護用袋。 A bag for protecting agricultural products by covering them with agricultural products such as fruits, vegetables, flowers, etc., and using the agricultural product-protecting covering material according to any one of claims 1, 2, or 3, and opening at least in one A bag for protecting agricultural products, characterized by comprising: 果実、穀物、野菜及び花等の農産物を保護するための覆いであって、請求項１、２又は３の何れかに記載の農産物保護用被覆材を帯状に形成し、畝状に植えられた植物に連続して渡して線条材等で全体を固定し、前記農産物がカバーされる状態で植物の全体乃至一部を覆い、前記フィルム乃至シートの下端部を下方に垂下させるか、又は前記フィルム乃至シートの下端部を地面に固定してなることを特徴とする農産物保護用覆い。
A cover for protecting agricultural products such as fruits, cereals, vegetables and flowers, wherein the covering for agricultural product protection according to any one of claims 1, 2, or 3 is formed in a band shape and planted in a basket shape Passing continuously to the plant and fixing the whole with a wire rod, etc., covering the whole or a part of the plant in a state where the agricultural product is covered, the lower end of the film or sheet is suspended downward, or A cover for protecting agricultural products, wherein the film or sheet has a lower end fixed to the ground.
JP2005377294A 2005-12-28 2005-12-28 Covering material for protecting agricultural crop, method for producing the covering material, and bag and cover each for protecting agricultural crop using the covering material Pending JP2009081996A (en)

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JP2012040226A (en) * 2010-08-20 2012-03-01 Meiko Shoji Kk Heat radiating pad
WO2013118861A1 (en) * 2012-02-08 2013-08-15 岡山県 Fruit bag
KR20140133516A (en) * 2012-02-08 2014-11-19 오카야마켄 Fruit bag
JPWO2013118861A1 (en) * 2012-02-08 2015-05-11 岡山県 Fruit bag
KR101719289B1 (en) * 2012-02-08 2017-03-23 오카야마켄 Fruit bag
JP2017507666A (en) * 2014-02-10 2017-03-23 ヴィヴィ ベスローテン フェンノートシャップ System and method for producing plants
US11166416B2 (en) 2014-02-10 2021-11-09 Vivi B.V. System and method for producing a plant
JP2021070886A (en) * 2019-10-31 2021-05-06 東レ株式会社 Knitted fabric
JP7434804B2 (en) 2019-10-31 2024-02-21 東レ株式会社 knitted fabric

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