JPS6247712B2 - - Google Patents
Info
- Publication number
- JPS6247712B2 JPS6247712B2 JP53093662A JP9366278A JPS6247712B2 JP S6247712 B2 JPS6247712 B2 JP S6247712B2 JP 53093662 A JP53093662 A JP 53093662A JP 9366278 A JP9366278 A JP 9366278A JP S6247712 B2 JPS6247712 B2 JP S6247712B2
- Authority
- JP
- Japan
- Prior art keywords
- container
- vegetables
- fruits
- film
- packaging
- 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.)
- Expired
Links
- 239000011111 cardboard Substances 0.000 claims description 43
- 230000035699 permeability Effects 0.000 claims description 41
- 235000012055 fruits and vegetables Nutrition 0.000 claims description 39
- 238000004806 packaging method and process Methods 0.000 claims description 29
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
- 229920003002 synthetic resin Polymers 0.000 claims description 16
- 239000000057 synthetic resin Substances 0.000 claims description 16
- 239000001569 carbon dioxide Substances 0.000 claims description 13
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 13
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 11
- 229910052760 oxygen Inorganic materials 0.000 claims description 11
- 239000001301 oxygen Substances 0.000 claims description 11
- 239000004793 Polystyrene Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 9
- 229920002223 polystyrene Polymers 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 6
- 239000007789 gas Substances 0.000 description 22
- 230000000694 effects Effects 0.000 description 12
- 230000029058 respiratory gaseous exchange Effects 0.000 description 8
- 229920005992 thermoplastic resin Polymers 0.000 description 8
- 238000003860 storage Methods 0.000 description 7
- 229920001577 copolymer Polymers 0.000 description 5
- 230000007423 decrease Effects 0.000 description 5
- 239000011087 paperboard Substances 0.000 description 5
- 239000004798 oriented polystyrene Substances 0.000 description 4
- 230000005068 transpiration Effects 0.000 description 4
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 3
- 239000005977 Ethylene Substances 0.000 description 3
- 239000012790 adhesive layer Substances 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 239000000123 paper Substances 0.000 description 3
- 230000001766 physiological effect Effects 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 238000004321 preservation Methods 0.000 description 3
- 235000013311 vegetables Nutrition 0.000 description 3
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 2
- -1 Polyethylene Polymers 0.000 description 2
- UBAZGMLMVVQSCD-UHFFFAOYSA-N carbon dioxide;molecular oxygen Chemical compound O=O.O=C=O UBAZGMLMVVQSCD-UHFFFAOYSA-N 0.000 description 2
- 229910001882 dioxygen Inorganic materials 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 239000002985 plastic film Substances 0.000 description 2
- 229920006255 plastic film Polymers 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 230000004580 weight loss Effects 0.000 description 2
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- 235000010799 Cucumis sativus var sativus Nutrition 0.000 description 1
- 244000299906 Cucumis sativus var. sativus Species 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 241000895680 Stylosanthes guianensis Species 0.000 description 1
- 208000008784 apnea Diseases 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
Landscapes
- Wrappers (AREA)
- Packaging Frangible Articles (AREA)
- Laminated Bodies (AREA)
- Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)
- Packages (AREA)
Description
産業上の利用分野
本発明は、青果物包装用段ボール容器、とくに
特定の水蒸気透過度、酸素および炭酸ガス透過度
および厚さを有する二軸延伸合成樹脂フイルム層
が段ボール容器の内面または内外面の全部にラミ
ネートされてなることを特徴とする青果物包装用
段ボール容器に関する。
従来の技術
従来より、青果物すなわち野菜や果実の包装荷
姿には木箱、段ボール箱、ポリ袋、ネツト、紙
袋、かご等がある。しかし野菜、果実ともに在来
の荷姿から段ボール箱への転換が顕著である。段
ボール箱は青果物の輸送、貯蔵時の振動、衝撃な
どの物理的作用からの保護は十分達せられるが、
青果物の収穫後の生理作用までは考慮されていな
い。
又、従来技術として、実開昭50−116822号公報
に記載の考案は板紙から形成された多辺形状の外
箱内面にプラスチツクフイルムを密着させた紙容
器に関するものである。また実開昭52−152079号
公報には食品等の密封包装に用いる板紙とプラス
チツクフイルムとからなり、被覆フイルムの厚さ
でガス透過度を調節できる容器に関するものであ
る。
さらに、特開昭52−141785号公報は熱可塑性樹
脂のシートあるいはフイルムを塑性加工により形
成した容器に係わり、該熱可塑性樹脂は溶解度指
数9.5以上でかつ熔融押出可能な各種の熱可塑性
樹脂及びそのブレンド物を使用することにより酸
素、炭酸ガス、水蒸気などに対するすぐれたガス
バリヤー性と機械的強度、硬さ、層間接着性およ
び透明性との望ましい組合せを有する包装容器に
関するものである。
従来、段ボールの強度保持効果と、適当なガス
透過性および水蒸気透過性により容器内の青果物
の鮮度保持を図る効果との両者をかねそなえた包
装容器はなかつた。
発明の解決しようとする問題点
しかしながら、上記の従来技術では、青果物の
生理作用を考慮して透湿度、酸素、炭酸ガス等の
ガス透過度およびフイルムの厚さを規定すると共
にフイルム本来の特性（適度の透湿性、通気性）
を利用するため特定の二軸延伸合成樹脂フイルム
層と段ボールシートとよりなる容器を用い、閉鎖
容器内の酸素、炭酸ガス、水蒸気の三者を調整す
ることによつて鮮度保持が良好でしかも閉鎖でき
る青果物包装用段ボール容器に関するものではな
い。
以上にのべたように、従来の容器は青果物の保
存性については問題点があつた。
青果物の収穫後の生理作用には、呼吸作用と蒸
散作用とがある。
呼吸作用は温度が上がれば激しくなり、環境ガ
ス即ち酸素ガス濃度が上がり、炭酸ガス濃度が下
がると同様に激しくなる。呼吸作用が激しくなる
と、“萎れ”および呼吸熱による“蒸れ”を生じ
腐りやすくなる。一方、酸素ガス濃度が下がり炭
酸ガス濃度が上つた場合は呼吸作用は減少し、無
呼吸になり醗酵などの障害を起す。また、蒸散作
用については、温度が上がれば大となり、湿度が
下がれば大となる。また湿度が上がれば小となる
が腐敗する。
従来、青果物の鮮度保持の方法として予冷、低
温貯蔵、CA貯蔵（Controlled Atomosphere
Storage）等があるが、我国ではコールドチエー
ンが完全に確立されていないし、またこれらの方
法では設備投資が必要であるなどの問題がある。
また、青果物を個々に合成樹脂フイルムにて包装
する方法もあるが手間がかゝる。
また、特開昭52−141785号公報には熱可塑性樹
脂シートあるいはフイルムを塑性加工により形成
した容器に関して記載されており、上記の熱可塑
性樹脂は溶解度指数9.5以上でかつ溶融押出可能
な複数種の熱可塑性樹脂を主体とするブレンド物
であつて、該複数種の熱可塑性樹脂は特定のガス
透過度と透湿度とを有するものである。上記公報
記載の容器に使用した熱可塑性樹脂フイルムは二
軸延伸フイルムであると特定されていない。二軸
延伸フイルムをラミネートした容器程の強度保持
効果は得られず、また特定のガス透過性および透
湿性を採用したことによる効果は得られないので
青果物包装用容器には適しない。
問題点を解決するための手段
本発明は、上記のごとく青果物の環境すなわち
酸素ガス、炭酸ガスの濃度および湿度を適切にコ
ントロールすることによりその保存性の向上をは
かることを目的とした青果物包装用段ボール容器
を提供することにある。
すなわち本発明は、水蒸気透過度（ハネウエル
式：ｇ/m2・24hr、38℃・90％RH）75〜180、酸
素透過度（同圧法：c.c./m224hr・atm.30℃）4000
〜10000、炭酸ガス透過度（リツシー法：c.c./m2・
24hr・atm.30℃）14000〜30000、厚さ15〜30μ
の特性を有するポリスチレン、ポリスチレン共重
合体、これらの混合物およびエチレン・酢ビ共重
合体よりなる群から選ばれた二軸延伸合成樹脂フ
イルム層が段ボール容器の内面または内外面の全
部にラミネートされてなる青果物包装用段ボール
容器に関するものである。
次に青果物の包装用として一般に用いられる合
成樹脂フイルムにつき水蒸気透過度、酸素および
炭酸ガス透過度を第１表に示す。
Industrial Application Field The present invention relates to a corrugated cardboard container for packaging fruits and vegetables, in particular, a biaxially oriented synthetic resin film layer having a specific water vapor permeability, oxygen and carbon dioxide gas permeability, and thickness is provided on all of the inner or outer surfaces of the corrugated cardboard container. This invention relates to a cardboard container for packaging fruits and vegetables, characterized in that it is laminated with. BACKGROUND OF THE INVENTION Traditionally, vegetables and fruits have been packaged in wooden boxes, cardboard boxes, plastic bags, nets, paper bags, baskets, and the like. However, there is a noticeable shift from traditional packaging for both vegetables and fruits to cardboard boxes. Cardboard boxes can sufficiently protect fruits and vegetables from physical effects such as vibration and shock during transportation and storage, but
The physiological effects of fruits and vegetables after they are harvested are not taken into account. Further, as a prior art, the idea described in Japanese Utility Model Application Publication No. 116822/1980 relates to a paper container in which a plastic film is tightly adhered to the inner surface of a polygonal outer box made of paperboard. Further, Japanese Utility Model Publication No. 52-152079 relates to a container made of paperboard and plastic film used for hermetic packaging of foods, etc., and whose gas permeability can be adjusted by adjusting the thickness of the covering film. Further, JP-A-52-141785 relates to a container formed from a thermoplastic resin sheet or film by plastic processing, and the thermoplastic resin includes various thermoplastic resins having a solubility index of 9.5 or more and which can be melt extruded. The present invention relates to a packaging container that has a desirable combination of excellent gas barrier properties against oxygen, carbon dioxide, water vapor, etc., mechanical strength, hardness, interlayer adhesion, and transparency by using a blend. Conventionally, there has been no packaging container that has both the strength-retaining effect of cardboard and the effect of maintaining the freshness of fruits and vegetables within the container through appropriate gas permeability and water vapor permeability. Problems to be Solved by the Invention However, in the above-mentioned conventional technology, the moisture permeability, the permeability of gases such as oxygen and carbon dioxide gas, and the thickness of the film are defined in consideration of the physiological effects of fruits and vegetables, and the inherent characteristics of the film ( Adequate moisture permeability and breathability)
In order to utilize this, we use a container made of a specific biaxially oriented synthetic resin film layer and a corrugated cardboard sheet, and by adjusting the three components of oxygen, carbon dioxide gas, and water vapor inside the closed container, we can maintain good freshness while also being closed. It does not relate to cardboard containers for packaging fruits and vegetables. As mentioned above, conventional containers have problems with the preservation of fruits and vegetables. The physiological effects of fruits and vegetables after harvest include respiration and transpiration. Respiration becomes more intense as the temperature rises, as well as as the concentration of environmental gases, ie, oxygen, increases and the concentration of carbon dioxide decreases. When the respiration becomes intense, it causes "wilting" and "stuffiness" due to the heat of breathing, making it more likely to rot. On the other hand, when the oxygen gas concentration decreases and the carbon dioxide concentration increases, the respiratory action decreases, leading to apnea and problems such as fermentation. In addition, the transpiration effect increases as the temperature rises, and increases as the humidity decreases. Also, if the humidity rises, it will become smaller but will rot. Traditionally, methods for preserving the freshness of fruits and vegetables include pre-cooling, low-temperature storage, and CA storage (Controlled Atomosphere Storage).
However, cold chains have not been fully established in Japan, and these methods require capital investment.
There is also a method of individually wrapping fruits and vegetables in synthetic resin film, but this is time-consuming. Furthermore, JP-A-52-141785 describes a container formed from a thermoplastic resin sheet or film by plastic processing, and the above-mentioned thermoplastic resin has a solubility index of 9.5 or more and can be melt-extruded into multiple types. It is a blend mainly composed of thermoplastic resins, and the plurality of thermoplastic resins have specific gas permeability and water vapor permeability. The thermoplastic resin film used in the container described in the above publication is not specified as being a biaxially stretched film. It does not have the same strength-retaining effect as a container laminated with a biaxially stretched film, and does not have the effects of having specific gas permeability and moisture permeability, so it is not suitable for containers for packaging fruits and vegetables. Means for Solving the Problems As described above, the present invention aims to improve the preservation of fruits and vegetables by appropriately controlling the environment of the fruits and vegetables, that is, the concentration of oxygen gas, carbon dioxide gas, and humidity. Our goal is to provide cardboard containers. That is, the present invention has a water vapor permeability (Honeywell method: g/m 2 24 hr, 38°C 90% RH) of 75 to 180, and an oxygen permeability (isobaric method: cc/m 2 24 hr 30°C) 4000.
~10000, carbon dioxide permeability (Litsy method: cc/ m2・
24hr・atm.30℃) 14000~30000, thickness 15~30μ
A biaxially oriented synthetic resin film layer selected from the group consisting of polystyrene, polystyrene copolymer, a mixture thereof, and ethylene/vinyl acetate copolymer having the characteristics of The present invention relates to a cardboard container for packaging fruits and vegetables. Next, Table 1 shows the water vapor permeability, oxygen and carbon dioxide gas permeability of synthetic resin films commonly used for packaging fruits and vegetables.
【表】【table】
【表】
ポリエチレンフイルム、ポリプロピレンフイル
ムは酸素および炭酸ガスの通気性は比較的大きい
が水蒸気透過度は小さい。すなわち、水蒸気を通
しにくくガスを通しやすいが、その程度はフイル
ムの厚さによつて異なる。ポリ塩化ビニルは通気
性は小さいが水蒸気透過度はやや大である。一
方、二軸延伸のポリスチレン、エチレン・酢ビ共
重合体は水蒸気透過度、通気性ともに大きい。
一般に青果物をフイルム包装すると、包装内は
多湿になるため青果物の水分の蒸散作用は減少
し、水分ロスはきわめて小さいが、“蒸れ”によ
る腐りが発生する。
同時に、包装内のガス組成の呼吸への影響をみ
るに、酸素は減少し、炭酸ガスは蓄積され、一
方、フイルムの通気性によつて包装内外のガス濃
度の平衡関係が決まるので適当な透湿性および通
気性のフイルムを選択する必要がある。
また、包装用紙器例えば段ボール箱内にて青果
物を合成樹脂フイルムにて個別に包装する方法は
手間がかかりコストが高くつく欠点がある。
本発明で二軸延伸フイルムを使用している理由
は無延伸の場合はフイルム強度が弱いため段ボー
ル容器にラミネートしにくいし、またラミネート
された段ボール容器を青果物包装用容器として使
用した場合フイルムにクラツが入り、段ボール容
器内の湿度、酸素、炭酸ガスの調整ができなくな
り鮮度保持に劣る。
また、二軸延伸フイルムを使用するためにフイ
ルムをうすくすることが可能であり、またはじめ
てガス透過度、水蒸気透過度の調整が可能になる
のである。
さらに段ボールシートを使用しているので、板
紙より強度は大きく、軽くて丈夫で、しかも取扱
いが容易である。
本発明の段ボール容器内の青果物の呼吸、蒸散
作用による水分の影響を段ボール内のコルゲート
部の空隙によつて調整する機能的効果が得られ
る。
本発明の青果物包装用段ボール容器は、上記の
ごとき水蒸気透過度、酸素および炭酸ガス透過度
を有する二軸延伸合成樹脂フイルムが段ボール容
器の内面または内外面の全部にラミネートされて
なる青果物包装用段ボール容器である。
図面に示すものは、いずれも本発明に係る青果
物包装用段ボール容器の１例である段ボール容器
の器壁の断面を示すものである。第１図は容器を
形成する段ボールシート１の容器の内側となる面
に接着剤層２を介して二軸延伸合成樹脂フイルム
３を貼り合わせたものを示す。第２図は段ボール
シート１の両側に接着剤層２，２を介して二軸延
伸合成樹脂フイルム３，３を貼り合わせたもので
ある。
本発明の青果物包装用段ボール容器に使用され
る合成樹脂フイルムは、二軸延伸ポリスチレン
（例えば旭ダウ(株)・スタイロフイルムTH）の
厚さ15〜30μのものが上記通気性、透湿性の範囲
内にあり好ましい。
ポリスチレン以外に二軸延伸ポリスチレン共重
合体（アクリロニトリルなどとの共重合体）、あ
るいは前記のポリスチレンと前記のポリスチレン
共重合体との混合物、さらに二軸延伸エチレン・
酢ビ共重合体も使用することができる。また、上
記樹脂に限定されず、フイルムの厚さと、他の合
成樹脂とを適宜組み合わせて所定の通気性、水蒸
気透過度としたものを使用することができる。
次に、きゆうりを例にとつて、段ボール箱内裸
包装１と段ボール箱の内側をスタイロフイルム
厚16μで被覆した本発明にかかる段ボール容器２
および段ボール箱内にてきゆうりを１本宛スタイ
ロフイルム厚16μにて包んだもの３を40℃で４
日間保存し、その重量減少率を求めた結果を第２
表に示す。[Table] Polyethylene film and polypropylene film have relatively high oxygen and carbon dioxide gas permeability, but low water vapor permeability. That is, it is difficult for water vapor to pass through it, but it is easy for gas to pass through it, but the degree of this varies depending on the thickness of the film. Polyvinyl chloride has a low air permeability, but a rather high water vapor permeability. On the other hand, biaxially oriented polystyrene and ethylene/vinyl acetate copolymers have high water vapor permeability and air permeability. Generally, when fruits and vegetables are packaged in film, the inside of the package becomes humid, which reduces the ability of the fruits and vegetables to evaporate water, and although moisture loss is extremely small, spoilage occurs due to "stuffiness." At the same time, looking at the influence of the gas composition inside the package on respiration, oxygen decreases and carbon dioxide accumulates, while the gas permeability of the film determines the equilibrium relationship between the gas concentrations inside and outside the package. It is necessary to choose a moisture-permeable and breathable film. In addition, the method of individually wrapping fruits and vegetables with synthetic resin film in packaging paper containers, such as cardboard boxes, has the disadvantage of being laborious and expensive. The reason why a biaxially stretched film is used in the present invention is that if it is not stretched, the film has weak strength and is difficult to laminate onto a corrugated container, and if a laminated corrugated cardboard container is used as a container for packaging fruits and vegetables, the film will not crack. This makes it impossible to adjust the humidity, oxygen, and carbon dioxide inside the cardboard container, resulting in poor freshness retention. Furthermore, since a biaxially stretched film is used, it is possible to make the film thinner, and for the first time, it becomes possible to adjust gas permeability and water vapor permeability. Furthermore, since it uses corrugated paperboard, it is stronger, lighter, stronger, and easier to handle than paperboard. According to the present invention, a functional effect can be obtained in which the effects of moisture due to respiration and transpiration of fruits and vegetables in the cardboard container are adjusted by the voids in the corrugated portion within the cardboard. The corrugated cardboard container for packaging fruits and vegetables of the present invention is a corrugated board for packaging fruits and vegetables, in which a biaxially oriented synthetic resin film having the water vapor permeability, oxygen and carbon dioxide gas permeability as described above is laminated on the inner or outer surfaces of the corrugated container. It is a container. Each of the drawings shows a cross section of the wall of a cardboard container, which is an example of the cardboard container for packaging fruits and vegetables according to the present invention. FIG. 1 shows a corrugated cardboard sheet 1 forming a container, with a biaxially stretched synthetic resin film 3 bonded to the inside surface of the container with an adhesive layer 2 interposed therebetween. In FIG. 2, biaxially stretched synthetic resin films 3, 3 are bonded to both sides of a corrugated board sheet 1 with adhesive layers 2, 2 interposed therebetween. The synthetic resin film used in the corrugated container for packaging fruits and vegetables of the present invention is made of biaxially oriented polystyrene (for example, Stylo Film TH manufactured by Asahi Dow Co., Ltd.) with a thickness of 15 to 30 μm and has air permeability and moisture permeability within the above range. It is within and is preferable. In addition to polystyrene, biaxially oriented polystyrene copolymers (copolymers with acrylonitrile etc.), mixtures of the above polystyrene and the above polystyrene copolymers, and biaxially oriented ethylene/
Vinyl acetate copolymers can also be used. Furthermore, the resin is not limited to the above-mentioned resins, and it is possible to use a film having a desired air permeability and water vapor permeability by appropriately combining the thickness of the film and other synthetic resins. Next, using Kiyuuri as an example, we will explain the bare packaging inside the cardboard box 1 and the cardboard container 2 according to the present invention, in which the inside of the cardboard box is coated with a Styro film with a thickness of 16 μm.
And 1 piece of cucumber wrapped in Styro film thickness 16μ in a cardboard box 3 at 40℃ 4
Store it for several days and calculate the weight loss rate.
Shown in the table.
【表】
第２表により、１本毎にフイルム包装する個装
の場合と本発明のごとき包装形態とでは、重量減
少率に全く差異が認められず、本発明の段ボール
容器が優れた包装形態であることが分る。
なお本発明にて特定した水蒸気透過度、酸素お
よび炭酸ガス透過度の少くとも一つが範囲外のも
のを使用した場合には保存性に劣り、三つの特定
条件を満足するものを使用した場合に、青果物の
優れた保存性がえられる。
次に、本発明に使用される二軸延伸ポリスチレ
ン（スタイロフイルム）を内張りした段ボール
容器と本発明以外のフイルムを内張りした段ボー
ル容器と普通の段ボール容器とに各種野菜を保存
した試験結果を第３表ないし第５表に示す。[Table] Table 2 shows that there is no difference in the weight loss rate between the case of individual packaging in which each bottle is wrapped in a film and the packaging form of the present invention, and the cardboard container of the present invention is an excellent packaging form. It turns out that Note that if at least one of the water vapor permeability, oxygen and carbon dioxide gas permeability specified in the present invention is outside the range, the storage stability will be poor; , excellent preservation of fruits and vegetables can be achieved. Next, the results of a third experiment in which various vegetables were stored in a cardboard container lined with biaxially oriented polystyrene (Styro film) used in the present invention, a cardboard container lined with a film other than the present invention, and an ordinary cardboard container were examined. It is shown in Table 5.
【表】【table】
【表】【table】
【表】【table】
【表】【table】
【表】
第３〜第５表により、本発明に係る青果物包装
用段ボール容器が保存性に優れていることが分
る。
発明の効果
本発明の効果は次のようである。
(1) 本発明の青果物包装用段ボール容器は製作が
簡単であり、かつ、青果物の包装に手数がかか
らず、普通の段ボールと同様に使用することが
できる。しかも、青果物の水分蒸散作用と呼吸
作用につき考慮されているので保存性にすぐれ
ている。
また、耐水性も良好となるなど青果物包装用
段ボール容器としてすぐれたものである。
(2) 本発明は、特定の特性を有する二軸延伸フイ
ルムをラミネートした段ボール容器であるの
で、強度保持効果と適当なガス透過性および水
蒸気透過性による効果との相乗効果が得られ、
青果物包装用容器として好適である。
(3) 軸延伸フイルムを使用しているので、フイル
ムがうすくても腰があり、段ボール容器とのは
り合せのときにフイルムがやぶれないので良好
であるうえ、フイルムの水蒸気透過度およびガ
ス透過度の調整が可能である。
(4) 本発明の容器では段ボールシートを使用して
いるので板紙よりは強度は大きく、軽くて丈夫
でしかも取扱いが容易である。
また、本発明の容器内に青果物を入れて放置
した場合、段ボール容器内の青果物の呼吸、蒸
散作用による水分の影響を段ボール内のコルゲ
ート部の空隙によつて調整する機能的効果が得
られる。[Table] Tables 3 to 5 show that the cardboard container for packaging fruits and vegetables according to the present invention has excellent storage stability. Effects of the invention The effects of the invention are as follows. (1) The corrugated cardboard container for packaging fruits and vegetables of the present invention is easy to manufacture, requires no effort to package fruits and vegetables, and can be used in the same way as ordinary cardboard. Moreover, it has excellent storage stability because it takes into consideration the water evaporation effect and respiration effect of fruits and vegetables. In addition, it has good water resistance, making it an excellent cardboard container for packaging fruits and vegetables. (2) Since the present invention is a cardboard container laminated with a biaxially stretched film having specific characteristics, a synergistic effect of strength retention and appropriate gas permeability and water vapor permeability can be obtained.
Suitable as a container for packaging fruits and vegetables. (3) Since an axially stretched film is used, it is sturdy even if it is thin, and the film does not tear when attached to a cardboard container, which is good, and the film has low water vapor permeability and gas permeability. can be adjusted. (4) Since the container of the present invention uses a corrugated cardboard sheet, it has greater strength than paperboard, is light and durable, and is easy to handle. Furthermore, when fruits and vegetables are left in the container of the present invention, the functional effect of adjusting the influence of moisture caused by the respiration and transpiration of the fruits and vegetables in the cardboard container by the voids in the corrugated portion of the cardboard can be obtained.
第１図および第２図はいずれも本発明の青果物
包装用段ボール容器例の器壁の断面図である。
１…段ボールシート、２…接着剤層、３…二軸
延伸合成樹脂フイルム。
FIG. 1 and FIG. 2 are both sectional views of the container wall of an example of the cardboard container for packaging fruits and vegetables of the present invention. 1... Corrugated cardboard sheet, 2... Adhesive layer, 3... Biaxially stretched synthetic resin film.
Claims (1)
24hr、38℃、90％RH）75〜180：酸素透過度（同
圧法、24hr、atm、30℃）4000〜10000； 炭酸ガス透過度（リツシー法、c.c./m2、24hr、
atm、30℃）14000〜30000：厚さ15〜30μの特性
を有する二軸延伸合成樹脂フイルム層が段ボール
容器の内面または内外面の全部にラミネートされ
てなることを特徴とする青果物包装用段ボール容
器。 ２ 二軸延伸合成樹脂フイルム層がポリスチレン
よりなるものである特許請求の範囲第１項記載の
青果物包装用段ボール容器。 ３ 二軸延伸合成樹脂フイルム層がポリスチレン
共重合体よりなるものである特許請求の範囲第１
項記載の青果物包装用段ボール容器。 ４ 二軸延伸合成樹脂フイルム層がポリスチレン
とポリスチレン共重合体との混合物よりなるもの
である特許請求の範囲第１項記載の青果物包装用
段ボール容器。[Claims] 1. Water vapor permeability (Honeywell formula: g/m 2 ,
24hr, 38℃, 90%RH) 75-180: Oxygen permeability (isobaric method, 24hr, atm, 30℃) 4000-10000; Carbon dioxide permeability (Litsy method, cc/ m2 , 24hr,
atm, 30°C) 14000-30000: A corrugated cardboard container for fruit and vegetable packaging, characterized in that a biaxially oriented synthetic resin film layer having a thickness of 15-30μ is laminated on the inner or outer surfaces of the corrugated container. . 2. The corrugated cardboard container for packaging fruits and vegetables according to claim 1, wherein the biaxially stretched synthetic resin film layer is made of polystyrene. 3. Claim 1, wherein the biaxially stretched synthetic resin film layer is made of a polystyrene copolymer.
Cardboard containers for packaging fruits and vegetables as described in Section 1. 4. The corrugated cardboard container for packaging fruits and vegetables according to claim 1, wherein the biaxially stretched synthetic resin film layer is made of a mixture of polystyrene and polystyrene copolymer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9366278A JPS5520172A (en) | 1978-08-02 | 1978-08-02 | Paper container for packing vegitables |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9366278A JPS5520172A (en) | 1978-08-02 | 1978-08-02 | Paper container for packing vegitables |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5520172A JPS5520172A (en) | 1980-02-13 |
| JPS6247712B2 true JPS6247712B2 (en) | 1987-10-09 |
Family
ID=14088595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9366278A Granted JPS5520172A (en) | 1978-08-02 | 1978-08-02 | Paper container for packing vegitables |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5520172A (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58193276A (en) * | 1982-04-22 | 1983-11-10 | 東洋紡績株式会社 | Method of packing vegetable perishable food |
| KR890002855B1 (en) * | 1985-06-26 | 1989-08-05 | 미쯔비시 가스 가가구 가부시기가이샤 | Sheet-type deoxide material |
| JPH0684183B2 (en) * | 1988-03-31 | 1994-10-26 | 江崎グリコ株式会社 | Sterilization and storage of canned or retort food |
| JPH0662181B2 (en) * | 1989-03-01 | 1994-08-17 | レンゴー株式会社 | Packaging box for fruits and vegetables |
| JP2598821Y2 (en) * | 1992-06-11 | 1999-08-23 | レンゴー株式会社 | Bamboo shoot packaging |
| FR2716441B1 (en) * | 1994-02-23 | 1996-09-13 | Lawson Mardon Trentesaux Sa | Multilayer structure, intended to constitute a packaging, in particular for soft cheeses. |
| US20100221393A1 (en) * | 2006-03-21 | 2010-09-02 | Loong Keng Lim | Resealable, Reusable Plastic Storage Container and Lid With Gas-Permeable Membranes for Modified Storage of Food and Perishables |
-
1978
- 1978-08-02 JP JP9366278A patent/JPS5520172A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5520172A (en) | 1980-02-13 |
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