JP3183302B2 - Liquid-resistant breathable packaging material - Google Patents
Liquid-resistant breathable packaging materialInfo
- Publication number
- JP3183302B2 JP3183302B2 JP04375992A JP4375992A JP3183302B2 JP 3183302 B2 JP3183302 B2 JP 3183302B2 JP 04375992 A JP04375992 A JP 04375992A JP 4375992 A JP4375992 A JP 4375992A JP 3183302 B2 JP3183302 B2 JP 3183302B2
- Authority
- JP
- Japan
- Prior art keywords
- film
- heat
- packaging material
- liquid
- permeable
- 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 - Lifetime
Links
Landscapes
- Packages (AREA)
- Wrappers (AREA)
Description
【0001】[0001]
【産業上の利用分野】本発明に係わる通気性包装材料
は、脱酸素剤、炭酸ガス吸収剤、エチレン吸収剤、乾燥
剤、防錆剤等の各種の品質保持剤と品質保持剤の適用さ
れた対象物品との隔離を目的とする耐液性かつ通気性材
料として用いられる。そして、本発明による耐液通気性
包装材料は、特に耐液性かつ品質保持剤の漏洩防止効果
に優れ、多水分物品に対する品質保持剤あるいは内容物
の漏洩が問題となる品質保持剤の隔離に好適であり、食
品、飲料、青果物などの食品分野のみならず、金属部
品、医薬品等、広い分野で品質保持剤の隔離包装に有効
に利用できるものである。BACKGROUND OF THE INVENTION The breathable packaging material according to the present invention is applied to various quality preserving agents such as a deoxidizer, a carbon dioxide gas absorbent, an ethylene absorbent, a desiccant, a rust preventive and the like. It is used as a liquid-resistant and breathable material for the purpose of isolating it from the target object. The liquid-permeable and breathable packaging material according to the present invention is particularly excellent in liquid resistance and the effect of preventing the leakage of the quality preservative, and is used for isolating the quality preservative from which the leakage of the quality preservative or the contents of a high moisture article becomes a problem. It is suitable for use in the isolation and packaging of quality preservatives in a wide range of fields such as metal parts and pharmaceuticals as well as in the food field such as foods, beverages and fruits and vegetables.
【0002】[0002]
【従来の技術】通気性包装材料によって対象物品と隔離
包装される品質保持剤として、脱酸素剤、炭酸ガス吸収
剤、エチレン吸収剤、乾燥剤、防錆剤等が例示される。
中でも脱酸素剤等の品質保持剤包装体が最近、食品を主
対象として多用されている。しかし、品質保持の対象と
なる食品は多種多様にわたり、従来の通気性包装材料を
用いた脱酸素剤包装体では内容物に起因する染み・錆等
の発生により、適用困難な食品や飲料が多数ある。2. Description of the Related Art As a quality preserving agent which is separated and packaged from a target article by a breathable packaging material, a deoxidizing agent, a carbon dioxide absorbent, an ethylene absorbent, a desiccant, a rust inhibitor and the like are exemplified.
Above all, quality preservative packages such as oxygen scavengers have recently been widely used mainly for foods. However, there is a wide variety of foods that are subject to quality preservation, and there are many foods and beverages that are difficult to apply due to the generation of stains and rust due to the contents of conventional oxygen-absorbing packaging using a breathable packaging material. is there.
【0003】従来の脱酸素剤包装体の通気性包装材料と
して、例えば、紙と有孔ポリエチレンフィルムを積層接
着したものが用いられており、この場合の通気性はポリ
エチレンフィルムの開孔率で調節されていた。しかし、
この脱酸素剤を多湿食品や飲料に適用した場合、包装材
料が耐水性に劣るため、湿って脱酸素剤の包装袋が破損
したり、あるいは有孔ポリエチレンフィルムの孔を通し
て内容物が染み出す場合があり食品の安全衛生上好まし
くなく、その上、水濡れによって酸素吸収速度が遅くな
り、品質保持能力が十分に発揮されない場合があった。[0003] As a conventional air-permeable packaging material for an oxygen scavenger package, for example, a laminated material of paper and a perforated polyethylene film is used, and in this case, the air permeability is controlled by the opening ratio of the polyethylene film. It had been. But,
When this oxygen absorber is applied to humid foods and beverages, the packaging material is inferior in water resistance, so that the packaging bag of the oxygen absorber is damaged due to moisture, or the contents permeate through the holes of the perforated polyethylene film. This is not preferable in terms of food safety and hygiene, and furthermore, the rate of oxygen absorption is reduced due to water wetting, and the quality retention ability may not be sufficiently exhibited.
【0004】上記欠点を改良する包装材料として、特開
昭53-51096号公報には、融点が異なる2枚のプラスチッ
クフィルムに孔をあけ、これをそのまま重ね合わせる
か、または紙を挟んで積層接着した包装材料が開示され
ている。また、特開昭 56-124440号公報または特開昭 5
6-124441号公報には、同様に表面に孔をあけたプラスチ
ックフィルムを用いた包装材料が開示されている。しか
しながら、上記包装材料は、表面がプラスチックフィル
ムであるため、紙に比べ耐水性は高いが、通気性を持た
せるための貫通孔が多数あけてあるので、多湿食品、す
なわち水分含有量が多い食品と接触した場合には、包装
材料が湿って内容物が染み出し、安全衛生上の問題を生
じる欠点があり、また、強度も弱いものであった。さら
に、包装材料の製造時に熱接着したりあるいは接着剤を
使ったりするために、孔が変形したり、接着剤の影響で
通気性が変化する等の欠点もあった。その他、多湿食品
に適用すると表面のプラスチックフィルムと紙とが剥離
してしまい、脱酸素剤等の包装材料及び隔離用包装材料
として使用が不可能になる場合があった。いずれにして
も、プラスチックフィルムに針等で細孔を穿孔して酸素
透過度を確保することが一般的に行われることではある
が、例えば対象物が液体等の場合には、細孔より液体が
侵入し脱酸素剤等の品質保持剤が濡れて酸素吸収が停止
したり、内容物が漏洩したりする問題があった。As a packaging material for improving the above disadvantages, Japanese Patent Application Laid-Open No. 53-51096 discloses a method in which holes are made in two plastic films having different melting points, and these are laminated as they are or laminated and bonded with paper. Packaging materials are disclosed. Also, JP-A-56-124440 or JP-A-5-124440
Japanese Patent Application Laid-Open No. 6-124441 discloses a packaging material using a plastic film similarly having a hole in the surface. However, since the surface of the packaging material is a plastic film, the surface of the packaging material is higher in water resistance than paper, but is provided with a large number of through holes for providing air permeability, so that a humid food, that is, a food having a high moisture content. When it comes in contact with, the packaging material becomes wet and the contents seep out, causing a problem of safety and hygiene, and has a low strength. In addition, there are drawbacks such as deformation of the holes and change in air permeability due to the effect of the adhesive due to thermal bonding or use of an adhesive during the production of the packaging material. In addition, when applied to humid foods, the plastic film and paper on the surface may peel off, making it impossible to use them as packaging materials such as oxygen absorbers and packaging materials for isolation. In any case, it is a common practice to ensure oxygen permeability by piercing pores in a plastic film with a needle or the like. And the quality preserving agent such as the oxygen scavenger gets wet to stop the oxygen absorption and leak the contents.
【0005】また、酸素透過度の大きいプラスチックフ
ィルム(例えば、ポリエチレン、ポリメチルペンテン、
ポリブタジエン等のフィルム)を脱酸素剤包装体等の品
質保持剤の隔離材料として使用した場合には、耐液性に
は優れるものの、実用上十分な酸素吸収速度を得るのに
必要な酸素透過度を確保することは不可能であった。さ
らに、液体用キャップ型脱酸素剤の例として、実開昭55
-080260 には、耐水性微多孔膜等を隔離材料とした記載
があるが、アルコ−ル含有飲料等の浸透性液体には適用
が困難で、耐液性が不十分であった。Further, plastic films having high oxygen permeability (eg, polyethylene, polymethylpentene,
When a film such as polybutadiene) is used as an isolating material for a quality preservative such as a package of oxygen scavengers, the oxygen permeability required for obtaining a practically sufficient oxygen absorption rate is high, although it has excellent liquid resistance. It was impossible to secure. Furthermore, as an example of a cap-type oxygen absorber for liquids,
-080260 describes that a water-resistant microporous membrane or the like is used as an isolating material, but it is difficult to apply to permeable liquids such as alcohol-containing beverages and the liquid resistance is insufficient.
【0006】以上の様に、脱酸素剤に代表される品質保
持剤を従来の通気性包装材料により隔離包装した包装体
の問題点として、耐通液性および耐液強度の点で耐液性
に難があって内容物の染み・錆移行の問題もあり、多湿
食品、飲料、液状医薬品等へ適用した場合に安全衛生性
上問題の生じることや実用上充分な酸素透過度を確保す
ることが困難なことが指摘されていた。[0006] As described above, a problem of a package in which a quality preserving agent represented by an oxygen scavenger is isolated and packaged by a conventional air-permeable packaging material is one of the problems in terms of liquid resistance and liquid resistance. There is also a problem of stains and rust migration of the contents, causing problems in safety and hygiene when applied to humid foods, beverages, liquid pharmaceuticals, etc., and ensuring sufficient oxygen permeability for practical use Was difficult.
【0007】[0007]
【発明が解決しようとする課題】本発明の目的とすると
ころは、従来の品質保持剤の隔離包装材料が有する上記
問題点を解消し、多湿食品、飲料、液状医薬品等へ適用
した場合でも安全衛生上問題がなく、しかも、実用上十
分な通気性を有する品質保持剤隔離用耐液通気性包装材
料を提供することにある。SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems of the conventional packaging material for preserving a quality preservative, and to provide a safe product even when applied to humid foods, beverages, liquid pharmaceuticals and the like. It is an object of the present invention to provide a liquid-resistant gas-permeable packaging material for isolating a quality preservative, which has no problem in hygiene and has practically sufficient gas permeability.
【0008】[0008]
【課題を解決するための手段】本発明者らは前記従来技
術の問題点に鑑み鋭意研究を行った結果、本発明を完成
するに至った。すなわち、本発明による品質保持剤隔離
用の耐液通気性包装材料は、未貫通微多孔が穿孔され非
貫通の膜部を残したフィルムあるいはシートであって、
酸素透過度が10,000cc/m2 ・24Hr・atm 以上であるこ
とを要件とする。Means for Solving the Problems The present inventors have conducted intensive studies in view of the problems of the prior art, and as a result, completed the present invention. That is, the liquid-permeable and breathable packaging material for isolating the quality-preserving agent according to the present invention is a film or sheet that has a non-penetrated microporous hole and a non-penetrated membrane part,
Oxygen permeability must be 10,000 cc / m 2 · 24 Hr · atm or more.
【0009】以下に本発明を詳しく説明する。本発明に
基づく耐液通気性包装材料として、例えば、次のような
構成のものが挙げられる。 (1) ポリエチレンテレフタレート、ポリアミド、ポリプ
ロピレン、ポリカーボネート、セロファン、トリメチル
ペンテンまたはポリビニルアルコール等からなるフィル
ム、ポリ塩化ビニリデンコート各種フィルム、アルミ箔
ラミネートフィルム、あるいはアルミ蒸着各種フィルム
等の耐熱性フィルムに、ポリエチレン、ポリプロピレ
ン、エチレンアクリル酸共重合樹脂、エチレンアクリル
酸エチル共重合樹脂、アイオノマ−、ポリブタジエン、
エチレン酢酸ビニル共重合樹脂フィルム等からなるシ−
ル性フィルムを積層接着してなる積層フィルムに、耐熱
性フィルム側からこれを貫通して少なくともシ−ル性フ
ィルム側に未貫通の残膜部を残した未貫通微多孔を穿設
してなる包装材料。Hereinafter, the present invention will be described in detail. Examples of the liquid-permeable and breathable packaging material according to the present invention include those having the following configurations. (1) Polyethylene terephthalate, polyamide, polypropylene, polycarbonate, cellophane, films made of trimethylpentene or polyvinyl alcohol, etc., polyvinylidene chloride coated films, aluminum foil laminated films, or heat-resistant films such as aluminum evaporated films, polyethylene, Polypropylene, ethylene acrylic acid copolymer resin, ethylene ethyl acrylate copolymer resin, ionomer, polybutadiene,
A screen made of an ethylene-vinyl acetate copolymer resin film, etc.
A non-penetrated microporous body is formed by penetrating the heat-resistant film side and leaving at least a non-penetrated remaining film part on the sealable film side in a laminated film obtained by laminating and adhering the heat-resistant film. Packaging material.
【0010】(2) 上記の耐熱性フィルム単体あるいは上
記(1)の積層フィルムと、熱シ−ル性の不織布(例え
ば、ユニチカ製「エルベス」、帝人製「ユニセル」等の
ポリプロピレン、ポリエチレン等の合成繊維、複合繊
維、合成パルプ等から作られる湿式あるいは乾式不織
布)、ポリエチレン、ポリプロピレン等を原料とした各
種微多孔膜(例えば、積水化学製「セルポア」、徳山曹
達製「ポ−ラム」、「NFシ−ト」等の常圧で水を通さ
ない各種微多孔膜が使用される)、あるいは合成樹脂、
合成パルプ製の耐水性不織布(例えば、デュポン製「タ
イベック」、旭化成製「ルクサ−」、阿波製紙製「アル
ト」等の常圧で水を通さない各種不織布が使用される)
とを積層接着してなる積層シ−トに、耐熱性フィルム側
から穿孔し、少なくとも該積層シ−トに未貫通の残膜部
を残した未貫通微多孔を穿設してなる包装材料。(2) The above-mentioned heat-resistant film alone or the laminated film of (1) and a heat-sealing nonwoven fabric (for example, polypropylene such as "Elves" made by Unitika, "Unicell" made by Teijin, etc.) Various microporous membranes made of synthetic fibers, composite fibers, wet or dry nonwoven fabrics made of synthetic pulp, etc., polyethylene, polypropylene, etc. (for example, "Serpore" manufactured by Sekisui Chemical, "Polarum" manufactured by Tokuyama Soda, " Various types of microporous membranes that are impermeable to water at normal pressure, such as "NF sheet", are used), or synthetic resins,
Water- resistant nonwoven fabric made of synthetic pulp (for example, various nonwoven fabrics that are impermeable to water at normal pressure, such as "Tyvek" manufactured by DuPont, "Luxer" manufactured by Asahi Kasei, "Alto" manufactured by Awa Paper) are used.
And a laminated sheet obtained by laminating and adhering a laminated porous sheet from the heat-resistant film side, and at least a non-penetrated microporous material having a non-penetrated remaining film portion left in the laminated sheet.
【0011】(3) ヒ−トシ−ラブルポリエチレンテレフ
タレート、ポリプロピレン等の熱シ−ル性を有する単体
フィルムにヒ−トシ−ル面の逆側より穿孔し、少なくと
も残膜部を残した未貫通微多孔を穿設してなる包装材
料。(3) Heat-sealable polyethylene terephthalate, polypropylene or other such heat-sealing single film perforated from the opposite side of the heat-sealing surface, leaving at least the remaining film portion of the unpenetrated fine film. Packaging material with perforations.
【0012】(4) 上記の耐熱性フィルム単体あるいは上
記(1) 積層フィルムにシ−ル層としてホットメルトを塗
布してなる積層フィルムに、耐熱性フィルム側から穿孔
し、少なくとも該積層フィルムに未貫通の残膜部を残し
た未貫通微多孔を穿設してなる包装材料。(4) Perforating the heat resistant film alone or the laminated film (1) obtained by applying a hot melt as a seal layer to the laminated film (1) from the heat resistant film side. A packaging material in which an unpenetrated microporous material having a penetrating residual film portion is perforated.
【0013】(5) ポリエチレン、ポリプロピレン、エチ
レンアクリル酸共重合樹脂、エチレンアクリル酸エチル
共重合樹脂、アイオノマ−、ポリブタジエン、エチレン
酢酸ビニル共重合樹脂フィルム等に少なくとも残膜部を
残した未貫通微多孔を穿設してなる包装材料。(5) Non-penetrating microporous material having at least a residual film portion left on polyethylene, polypropylene, ethylene acrylic acid copolymer resin, ethylene ethyl acrylate copolymer resin, ionomer, polybutadiene, ethylene vinyl acetate copolymer resin film, etc. Perforated packaging material.
【0014】以上のような構成が例示されるが、本発明
に使用される包装材料は、上記の例に限られるものでは
なく、本発明の目的が達成されるものであれば他の組み
合わせでも使用できる。また、補強のために各種補強材
を複合することも適宜実施される。そして、穿孔も包装
材料の両面から行うことも可能であり、また、ガス透過
性の悪いフィルム層は貫通させる必要はあるが、ガス透
過性の低いフィルムでも非貫通の残膜部が十分ガス透過
性で所望の酸素透過度が得られれば、必ずしも貫通させ
る必要はない。Although the above-described configuration is exemplified, the packaging material used in the present invention is not limited to the above-described example, and other combinations may be used as long as the object of the present invention is achieved. Can be used. In addition, various reinforcing materials are combined for reinforcement as appropriate. It is also possible to perform perforation from both sides of the packaging material, and it is necessary to penetrate a film layer with poor gas permeability, but even with a film with low gas permeability, the non-penetrating remaining film portion has sufficient gas permeability. If a desired oxygen permeability can be obtained by the property, it is not always necessary to penetrate.
【0015】前記包装材料の構成における耐熱性フィル
ムとしては、、包装適性、穿孔容易性、酸素透過度など
を考慮すれば、ポリエチレンテレフタレート、ポリアミ
ド、ポリメチルペンテン、ポリプロピレン等のフィルム
の使用が好ましい。As the heat-resistant film in the constitution of the packaging material, a film of polyethylene terephthalate, polyamide, polymethylpentene, polypropylene or the like is preferably used in consideration of packaging suitability, ease of perforation, oxygen permeability and the like.
【0016】次に、シ−ル層として好ましくは、エチレ
ンアクリル酸共重合樹脂、エチレンアクリル酸エチル共
重合樹脂、アイオノマ−、エチレン酢酸ビニル共重合樹
脂フィルムが使用される。レトルト食品等に適用してさ
らに耐熱性が要求される場合には、シ−ル層として、ポ
リプロピレン、高密度ポリエチレン、中密度ポリエチレ
ン等のフィルムを使用することが好ましい。なお、熱シ
−ル性の単体フィルムを、品質保持剤の隔離材料そのも
のとして、使用することも好ましい対応である。また、
本発明の通気性包装材料に印刷を施す場合には、表面の
透明プラスチックフィルムの裏側に印刷することが安全
衛生上好ましい。Next, an ethylene acrylic acid copolymer resin, an ethylene ethyl acrylate copolymer resin, an ionomer, and an ethylene vinyl acetate copolymer resin film are preferably used as the seal layer. When further heat resistance is required when applied to retort foods and the like, it is preferable to use a film of polypropylene, high-density polyethylene, medium-density polyethylene or the like as the seal layer. It is also preferable to use a heat-sealing single film as a material for isolating the quality preservative. Also,
When printing is performed on the breathable packaging material of the present invention, it is preferable on the back side of the transparent plastic film on the surface from the viewpoint of safety and health.
【0017】積層接着の方法も、特に限定されるもので
はなく、ドライラミ、押出ラミ、熱ラミ等自由に選択可
能である。また、上記構成は、あらかじめフィルムとし
て使用することに限定されず、例えば、耐熱性フィルム
に押出ラミネ−トでポリエチレンフィルム層を作ること
や、共押出法で一度に積層フィルムを製造して使用する
ことも可能である。The method of laminating and bonding is not particularly limited, either, and can be freely selected from dry lamination, extrusion lamination, and heat lamination. Further, the above configuration is not limited to use as a film in advance, and for example, a polyethylene film layer is formed on a heat-resistant film by extrusion lamination, or a laminated film is produced at a time by a co-extrusion method and used. It is also possible.
【0018】本発明の構成に用いられるプラスチックフ
ィルムは、包装適性、取扱強度、穿孔容易性等の点か
ら、その厚さは10〜100μm が好ましいが、不織
布、微多孔膜等を積層した場合は、この限りではない。The thickness of the plastic film used in the construction of the present invention is preferably from 10 to 100 μm from the viewpoint of packaging suitability, handling strength, ease of perforation, etc. This is not the case.
【0019】本発明においては、包装材料に少なくとも
残膜部を残した未貫通微多孔を穿設する方法として、化
学的前処理を含め、機械的穿孔法、レ−ザ−光穿孔法、
電子照射穿孔法、プラズマ穿孔法、高圧放電穿孔法他各
種の穿孔方法が適用できるが、高圧放電穿孔法が好まし
く、効果的である。In the present invention, as a method of perforating an unpenetrated microporous material having at least a residual film portion left in a packaging material, a mechanical perforation method including a chemical pretreatment, a laser-light perforation method,
Various types of perforation methods such as an electron irradiation perforation method, a plasma perforation method, a high-pressure discharge perforation method and the like can be applied, but the high-pressure discharge perforation method is preferable and effective.
【0020】高圧放電穿孔法として、スパ−クギャップ
方式、真空管方式、ソリッドステ−ト方式のいずれも適
用可能であるが、ソリッドステ−ト方式が好ましい方法
である。高圧放電穿孔法による穿孔は、放電電極と誘電
体ロ−ルの間に高電圧をかけ放電させつつ対象包材を通
過させることにより実施される。そして、穿孔密度およ
び穿孔深度は、放電電極と誘電体ロ−ルの間の距離、電
圧、放電電極の形状、誘電体ロ−ルの特性等により、適
宜調節される。この場合、穿孔する材料の厚さ、材質、
通過速度によっても調整が必要となるAs the high-pressure discharge perforation method, any of a spark gap method, a vacuum tube method, and a solid state method can be applied, but the solid state method is a preferable method. Perforation by the high-pressure discharge perforation method is performed by passing a target packaging material while applying a high voltage between a discharge electrode and a dielectric roll to cause discharge. The perforation density and perforation depth are appropriately adjusted according to the distance between the discharge electrode and the dielectric roll, the voltage, the shape of the discharge electrode, the characteristics of the dielectric roll, and the like. In this case, the thickness, material,
Adjustment is also required depending on the passing speed
【0021】本発明の未貫通微多孔を穿設するには、単
に放電電極と誘電体ロ−ルの間に高電圧をかけ放電させ
つつ対象包材を通過させるのみでは不十分で、種々の工
夫が必要となる。一つには、前処理として、放電穿孔前
に機械的にヤスリ状ロ−ル等で微細な傷痕をつける前処
理工程を実施することも有効である。あるいは、酸処理
を施しフィルム表面に極性基を作ったのち放電穿孔する
ことも有効である。更に、誘電体ロ−ルに局所放電部を
設けるため、被覆された誘電体層に欠落部を分散させて
作ったり、導電物を分散させた誘電体層とすることも穿
孔密度および穿孔深度の調節に有効である。In order to form the non-penetrated microporous material of the present invention, it is not sufficient to simply pass a target packaging material while discharging while applying a high voltage between the discharge electrode and the dielectric roll. Ingenuity is required. As one of the pretreatments, it is also effective to carry out a pretreatment step in which fine scars are mechanically formed with a file-like roll before discharging. Alternatively, it is also effective to subject the film to acid treatment to form a polar group on the film surface, and then perform discharge perforation. Furthermore, in order to provide a local discharge portion on the dielectric roll, it is also possible to disperse missing portions in the coated dielectric layer, or to use a dielectric layer in which a conductive material is dispersed to reduce the perforation density and the perforation depth. It is effective for adjustment.
【0022】使用される電極の材質は、アルミ、ステン
レス等が使用されるが、アルミニウムが好ましく使用さ
れる。電極の形としては、ナイフエッジ型、バ−型、シ
ュ−型等が使用されるが、ナイフエッジ型、あるいは放
電部の先端を多数の針型としたものが好ましい。処理電
力は、穿孔対象包材の厚さ、材質、通過速度等により調
節する必要があるが、例えば、5〜200W/m2 /分
の範囲で実施される。穿孔方向は、残膜部側を誘電体ロ
−ルに接する形で実施される。As the material of the electrode used, aluminum, stainless steel or the like is used, and aluminum is preferably used. As the shape of the electrode, a knife edge type, a bar type, a shoe type, or the like is used, but a knife edge type or a shape in which the tip of the discharge portion has a number of needles is preferable. The processing power needs to be adjusted depending on the thickness, material, passage speed, and the like of the packaging material to be perforated, but is, for example, in the range of 5 to 200 W / m 2 / min. The drilling direction is such that the remaining film portion side is in contact with the dielectric roll.
【0023】本発明に係る耐液通気性包装材料の酸素透
過度に代表されるガス透過度は、包装材料を穿孔する際
の穿孔密度、穿孔深度(残膜部厚さ)および孔径により
好適に調節することができる。穿孔密度として、1,000
〜10,000,000孔/cm2 の範囲で穿孔され、十分な酸素透
過度を確保する上では、上記の範囲で10,000孔/cm2 以
上が好ましく、50,000孔/cm2 以上がより好ましい。The gas permeability represented by the oxygen permeability of the liquid-permeable gas-permeable packaging material according to the present invention is preferably determined by the perforation density, perforation depth (remaining membrane thickness), and pore diameter when the packaging material is perforated. Can be adjusted. Drilling density of 1,000
Perforated in the range of 1010,000,000 holes / cm 2 , in order to ensure a sufficient oxygen permeability, the above range is preferably 10,000 holes / cm 2 or more, more preferably 50,000 holes / cm 2 or more.
【0024】穿孔深度、すなわち、未貫通孔穿孔時の残
膜部は、所望する酸素透過度に応じ、包装材料の特性お
よび残膜部の包材強度等を考慮して実用的な範囲の厚さ
に調節される。通常、残膜部の厚さは、包材強度の上か
ら0.5 μm 以上は必要であり、十分な酸素透過度を確保
するために10μm 以下の範囲で調節され、1〜7μm
の範囲で調節することが好ましい。孔径は、同様に酸素
透過度、包材強度等を考慮して調節されるが、印刷を施
した際に印刷柄が、孔径が大き過ぎると印刷柄が判別し
難くなるので、好ましくは500μm 以下の範囲で調節
される。The depth of perforation, that is, the remaining film portion at the time of non-through hole perforation, has a thickness in a practical range in consideration of the characteristics of the packaging material, the strength of the packaging material of the remaining film portion, and the like according to the desired oxygen permeability. Is adjusted accordingly. Normally, the thickness of the remaining film portion is required to be 0.5 μm or more from the top of the strength of the packaging material, and is adjusted within a range of 10 μm or less to secure a sufficient oxygen permeability.
It is preferable to adjust within the range. The pore size is similarly adjusted in consideration of oxygen permeability, packaging material strength, and the like. However, when a printed pattern is printed, it is difficult to determine the printed pattern if the pore size is too large. Is adjusted in the range.
【0025】本発明の耐液通気性包装材料について酸素
透過度に代表されるガス透過度は、隔離包装される品質
保持剤が必要とする酸素透過度に応じて調節される。実
用的な酸素透過度の範囲は、10,000cc/m2 ・24Hr・at
m 以上であり、好ましくは50,000cc/m2 ・24Hr・atm
以上、より好ましくは 100,000cc/m2 ・24Hr・atm以
上である。本発明に基づき前記構成の材料に未貫通の上
記穿孔を設けることにより、酸素透過度を10,000cc/m
2 ・24Hr・atm 以上としつつ、耐液性に優れた通気性包
装材料を得ることが可能となるのであり、従来の通気性
包装材料では得られなかった機能を付与できるのであ
る。The gas permeability represented by the oxygen permeability of the liquid-permeable and breathable packaging material of the present invention is adjusted according to the oxygen permeability required by the quality preservative to be packaged separately. Practical range of oxygen permeability, 10,000cc / m 2 · 24Hr · at
m or more, preferably 50,000 cc / m 2 · 24Hr · atm
It is more preferably at least 100,000 cc / m 2 · 24 Hr · atm. According to the present invention, by providing the above-mentioned non-penetrated perforations in the material having the above constitution, the oxygen permeability can be increased to 10,000 cc / m.
While a 2 · 24Hr · atm or more, than it is possible to obtain excellent breathability packaging material liquid resistance, it can impart a function which can not be obtained by conventional breathable packaging material.
【0026】すなわち、本発明の構成により、品質保持
剤の機能を十二分に発揮しうる酸素透過度を確保しつ
つ、非貫通の膜部を残すことにより極めて優れた耐液性
を付与し、しかもヒ−トシ−ル性の耐液通気性包装材料
を得ることが可能になるのである。そして、本発明に基
づき構成された耐液通気性包装材料は、脱酸素剤、炭酸
ガス吸収剤、エチレン吸収剤、乾燥剤、防錆剤等の各種
の品質保持剤と品質保持剤の適用された対象物品との隔
離を目的とする耐液性かつ通気性材料として用いられ、
特に耐液性かつ品質保持剤の漏洩防止効果に優れる。That is, according to the structure of the present invention, extremely excellent liquid resistance is imparted by leaving a non-penetrating membrane portion while securing oxygen permeability enough to exert the function of a quality preservative more than enough. Moreover, it becomes possible to obtain a heat-sealing liquid-permeable and breathable packaging material. The liquid-permeable and breathable packaging material constructed according to the present invention is applied with various quality preservatives and quality preservatives such as a deoxidizer, a carbon dioxide gas absorbent, an ethylene absorbent, a desiccant, and a rust preventive. Used as a liquid-resistant and breathable material for the purpose of separating the
In particular, it has excellent liquid resistance and an effect of preventing leakage of the quality preservative.
【0027】本発明における品質保持剤の代表例として
脱酸素剤が挙げられる。脱酸素剤は、例えば、亜硫酸
塩、亜硫酸水素塩、亜二チオン酸塩、ヒドロキノン、カ
テコール、レゾルシン、ピロガロール、没食子酸、ロン
ガリット、アスコルビン酸および/またはその塩、イソ
アスコルビン酸および/またはその塩、ソルボース、グ
ルコース、リグニン、ジブチルヒドロキシトルエン、ブ
チルヒドロキシアニソール、第一鉄塩、または、鉄粉等
の金属粉を含有する組成物からなるもので、脱酸素能、
炭酸ガス発生型脱酸素能または炭酸ガス吸収型脱酸素能
等をもつものが用いられる。品質保持剤の形状は、粉
末、粒状、塊状、シ−ト状など、特に問わない。また、
脱酸素剤をパルプ等と混合しシ−ト化したもの、熱可塑
性樹脂等と混合後シ−ト化したもの、更に、高分子材料
と金属触媒をブレンドした脱酸素材料等も用いられる。
そして、これらの品質保持剤が通気性包材に包装された
品質保持剤包装体であってもよい。品質保持剤は、形
状、組成等に限定されるものではない。A typical example of the quality maintaining agent in the present invention is an oxygen scavenger. Deoxidizers include, for example, sulfites, bisulfites, dithionites, hydroquinone, catechol, resorcinol, pyrogallol, gallic acid, rongalit, ascorbic acid and / or its salts, isoascorbic acid and / or its salts, Sorbose, glucose, lignin, dibutylhydroxytoluene, butylhydroxyanisole, ferrous salt, or a composition containing a metal powder such as iron powder;
Those having a carbon dioxide generation type deoxidizing ability or a carbon dioxide absorption type deoxidizing ability are used. The shape of the quality preserving agent is not particularly limited, such as powder, granules, lump, and sheet. Also,
A sheet obtained by mixing an oxygen scavenger with pulp or the like, a sheet mixed with a thermoplastic resin or the like, and an oxygen scavenger obtained by blending a polymer material and a metal catalyst are also used.
Then, a quality preserving agent package in which these quality preserving agents are packaged in a breathable packaging material may be used. The quality maintaining agent is not limited to the shape, the composition, and the like.
【0028】本発明の優れた耐液通気性包装材料を用い
た品質保持剤の隔離包装の形態として、次のような形態
が例示される。 (1) 物品を収納したガスバリア−性容器あるいは袋の一
部に本発明の耐液通気性包装材料で品質保持剤等を覆う
形で接着固定する形態。(図4、図5) (2) 物品を収納したガスバリア−性容器の蓋体と容器本
体との間に品質保持剤を配置し、本発明の耐液通気性包
装材料で隔離して、容器の蓋体と容器本体を耐液通気性
包装材料を介して熱シ−ルする形態。(図7) (3) 本発明の耐液通気性包装材料を間に挟んで作成した
ガスバリア−性の物品収納袋に品質保持剤を隔離した形
態。(図6) (4) ビンの蓋またはキャップに品質保持材料を収納し、
本発明の耐液通気性包装材料で隔離した形態(図8) (5) 物品を収納したガスバリア−性容器または袋の内壁
に脱酸素材料等を配し、本発明の耐液通気性包装材料を
隔離材として使用する形態。(図9) (6) 本発明の耐液通気性包装材料により形成した品質保
持剤包装体(図10)をガスバリア−性の物品収納容器
または袋の内部に直接配する形態。The following forms are examples of the form of isolated packaging of a quality preservative using the excellent liquid-permeable and breathable packaging material of the present invention. (1) A form in which a liquid preserving agent or the like is covered with a liquid-permeable and breathable packaging material of the present invention so as to cover and adhere to a part of a gas-barrier container or bag in which articles are stored. (FIGS. 4 and 5 ) (2) A quality preserving agent is arranged between the lid of the gas barrier container storing the articles and the container main body, and is separated by the liquid-permeable and breathable packaging material of the present invention. Heat sealing the lid and the container body through a liquid-permeable and breathable packaging material. (FIG. 7 ) (3) A form in which a quality preserving agent is isolated in a gas barrier-containing article storage bag formed with the liquid-permeable and breathable packaging material of the present invention interposed therebetween. (Fig. 6 ) (4) Put the quality holding material in the lid or cap of the bottle,
Form isolated by the liquid-permeable and gas-permeable packaging material of the present invention (FIG. 8 ) (5) A liquid-permeable and gas-permeable packaging material of the present invention in which an oxygen-absorbing material or the like is disposed on the inner wall of a gas-barrier container or bag containing articles. Is used as a separator. (FIG. 9 ) (6) An embodiment in which the quality preservative package (FIG. 10 ) formed of the liquid-permeable and breathable packaging material of the present invention is directly disposed inside a gas-barrier article storage container or bag.
【0029】[0029]
【実施例】次に、実施例によりさらに詳細に説明する。
なお、本発明はこの実施例に限定されるものではない。 実施例1 ポリエチレンテレフタレートフィルム(厚さ12μm)
の裏面に文字印刷と白ベタ印刷を施した後、ポリエチレ
ンを30μmの厚さに押出ラミネ−トした積層フィルム
を得た。この積層フィルムをソリッドステ−ト方式の放
電処理機により、ポリエチレンテレフタレートフィルム
側より60,000孔/cm2 の密度で未貫通孔を穿孔して耐液
通気性包装材料を得た。この時の非貫通膜部の厚さは5
μmであった。一方、洋紙(坪量40g/m2 )と有孔
ポリエチレンフィルム(厚さ40μm)を積層接着した
通気性包装材料を用いた脱酸素剤包装体(鉄系脱酸素剤
3g充填、50×50mm寸法)を準備し、上記耐液通気
性包装材料(80×80mm)で200×300mmの塩化
ビニリデンコ−ト延伸ナイロン/ポリエチレン製の袋の
一部に隔離した。この隔離された脱酸素剤包装体付の袋
に、醤油漬のたくあん100gを封入,密封シ−ルし
て、35℃下で蛍光灯照射しつつ保管した。そして、保
存2週間後の袋内酸素濃度の分析、たくあんの品質確認
および脱酸素剤包装体の状態を観察した。Next, the present invention will be described in more detail with reference to examples.
Note that the present invention is not limited to this embodiment. Example 1 Polyethylene terephthalate film (thickness: 12 μm)
Was subjected to character printing and white solid printing on the back surface, and an extruded laminate of polyethylene to a thickness of 30 μm was obtained. This laminated film was perforated with a density of 60,000 holes / cm 2 from the polyethylene terephthalate film side by a solid state discharge treatment machine to obtain a liquid-permeable and air-permeable packaging material. At this time, the thickness of the non-penetrating film part is 5
μm. On the other hand, an oxygen absorber package (filled with 3 g of iron-based oxygen absorber, 50 × 50 mm) using a breathable packaging material in which a paper (basis weight 40 g / m 2 ) and a perforated polyethylene film (thickness 40 μm) are laminated and bonded. ) Was prepared and isolated in a 200 × 300 mm vinylidene-coated stretched nylon / polyethylene bag using the above liquid-permeable and breathable packaging material (80 × 80 mm). The isolated bag with the oxygen absorber package was filled with 100 g of soy sauce-cooked takuan, sealed and sealed, and stored at 35 ° C. while irradiating with a fluorescent lamp. Then, two weeks after storage, the oxygen concentration in the bag was analyzed, the quality of Takuan was confirmed, and the state of the oxygen scavenger package was observed.
【0030】比較例1 脱酸素剤包装体の隔離材料として、実施例1の積層フィ
ルムを穿孔加工しないまま使用し、実施例1と同様に脱
酸素剤包装体を隔離した。得られた脱酸素剤包装体付の
袋で、実施例1と同様の試験を実施した。Comparative Example 1 The laminated film of Example 1 was used without perforation as an isolating material for the oxygen-absorbing agent package, and the oxygen-absorbing agent package was isolated in the same manner as in Example 1. The same test as in Example 1 was performed on the obtained bag with the oxygen scavenger package.
【0031】比較例2 脱酸素剤包装体の隔離材料として、実施例1の積層フィ
ルムを径1mmの針で20孔貫通孔を穿孔したものを使用
し、実施例1と同様に脱酸素剤包装体を隔離した。得ら
れた脱酸素剤包装体付の袋で、実施例1と同様の試験を
実施した。試験結果を、実施例1、比較例1の結果と合
わせて表1に示した。COMPARATIVE EXAMPLE 2 As a separating material for the oxygen-absorbing agent package, the laminated film of Example 1 was used in which 20 through-holes were perforated with a needle having a diameter of 1 mm. I isolated my body. The same test as in Example 1 was performed on the obtained bag with the oxygen scavenger package. The test results are shown in Table 1 together with the results of Example 1 and Comparative Example 1.
【表1】 [Table 1]
【0032】表1に示される結果において、実施例1で
は、隔離材料の効果で脱酸素剤包装体が品質保持機能を
充分発揮すると共に、耐液性に優れ脱酸素剤包装体の状
態も良好に保持されていた。一方、比較例1では、隔離
材料の酸素透過度が小さく脱酸素剤包装体の品質保持効
果が発揮されていない。また、比較例2では、隔離材料
の耐液性が不十分でたくあんの液が脱酸素剤包装体を濡
らし酸素吸収が途中で停止すると共に、脱酸素剤包装体
自体に染み・錆が発生した。According to the results shown in Table 1, in Example 1, the oxygen-absorbing agent package exerts a sufficient quality maintaining function by the effect of the isolating material, and has excellent liquid resistance and a good condition of the oxygen-absorbing agent package. Was held in. On the other hand, in Comparative Example 1, the oxygen permeability of the isolating material was small, and the quality maintaining effect of the oxygen scavenger package was not exhibited. Further, in Comparative Example 2, the liquid of the isolation material was insufficient in liquid resistance, and the liquid of the soaked wetted oxygen absorber, the oxygen absorption stopped halfway, and the oxygen absorber itself stained and rusted. .
【0033】実施例2 ポリエチレンフィルム(厚さ30μm)に、ソリッドス
テ−ト方式の放電処理機により、70,000孔/cm2 の密度
未貫通孔を穿孔して耐液通気性包装材料を得た。この時
の非貫通膜部の厚さは4μmであった。一方、洋紙(坪
量40g/m2 )と有孔ポリエチレンフィルム(厚さ4
0μm)を積層接着した通気性包装材料を用いた脱酸素
剤包装体(鉄系脱酸素剤3g充填、50×50mm寸法)
を準備した。また、上記耐液通気性包装材料を間に介し
て塩化ビニリデンコ−ト延伸ナイロン/ポリエチレンか
らなる包装材料2枚と合わせて、200×300mmの隔
離袋を作成した。脱酸素剤包装体を上記隔離袋の片側に
封入し、他方には、醤油200mlと空気100mlを封入
し密封,シ−ルして、蛍光灯照射下25℃下に保存し
た。そして、保存2週間後の袋内酸素濃度の分析、醤油
の品質確認および脱酸素剤包装体の状態を観察した。Example 2 A non-through hole having a density of 70,000 holes / cm 2 was perforated in a polyethylene film (thickness: 30 μm) using a solid state discharge treatment machine to obtain a liquid-permeable and gas-permeable packaging material. At this time, the thickness of the non-penetrating film part was 4 μm. On the other hand, paper (basis weight 40 g / m 2 ) and perforated polyethylene film (thickness 4
Oxygen-absorbing package using a breathable packaging material (0 μm) (3 g of iron-based oxygen absorbing agent, 50 × 50 mm size)
Was prepared. Separate bags of 200 × 300 mm were made by combining the above-mentioned liquid-permeable and air-permeable packaging material with two packaging materials made of vinylidene-coated stretched nylon / polyethylene. The oxygen scavenger package was sealed on one side of the isolation bag, and the other was sealed with 200 ml of soy sauce and 100 ml of air, sealed and sealed, and stored at 25 ° C. under fluorescent light irradiation. Then, two weeks after storage, the oxygen concentration in the bag was analyzed, the quality of the soy sauce was confirmed, and the state of the oxygen absorber package was observed.
【0034】比較例3 脱酸素剤包装体の隔離材料として、実施例1の積層フィ
ルムを穿孔加工しないまま使用し、実施例2と同様に脱
酸素剤包装体を隔離した。得られた脱酸素剤包装体付の
袋で、実施例2と同様の試験を実施した。Comparative Example 3 The laminated film of Example 1 was used without perforation as an isolating material for the oxygen scavenger package, and the oxygen scavenger package was isolated in the same manner as in Example 2. The same test as in Example 2 was performed on the obtained bag with the oxygen absorber package.
【0035】比較例4 脱酸素剤包装体の隔離材料として、実施例1の積層フィ
ルムを径1mmの針で20孔貫通孔を穿孔したものを使用
し、実施例1と同様に脱酸素剤包装体を隔離した。得ら
れた脱酸素剤包装体付の袋で、実施例2と同様の試験を
実施した。試験結果を、実施例2、比較例3の結果と合
わせて表2に示した。Comparative Example 4 As a separating material for the oxygen scavenger package, the laminated film of Example 1 having 20 through holes perforated with a needle having a diameter of 1 mm was used. I isolated my body. The same test as in Example 2 was performed on the obtained bag with the oxygen absorber package. The test results are shown in Table 2 together with the results of Example 2 and Comparative Example 3.
【表2】 [Table 2]
【0036】上記結果より、実施例1では、隔離材料の
効果で脱酸素剤包装体が品質保持機能を充分発揮すると
共に、耐液性に優れ脱酸素剤包装体の状態も良好に保持
されていた。一方、比較例3では、隔離材料の酸素透過
度が小さく脱酸素剤包装体の品質保持効果が発揮されて
いない。また、比較例4では、隔離材料の耐液性が不十
分で醤油が脱酸素剤包装体を濡らし酸素吸収が途中で停
止すると共に、脱酸素剤包装体自体に染みが発生した。From the above results, in Example 1, the oxygen-absorbing agent package exerts a sufficient quality maintaining function by the effect of the isolating material, and also has excellent liquid resistance and the state of the oxygen-absorbing agent package is well maintained. Was. On the other hand, in Comparative Example 3, the oxygen permeability of the isolating material was small, and the quality maintaining effect of the oxygen scavenger package was not exhibited. Further, in Comparative Example 4, the liquid resistance of the isolation material was insufficient, soy sauce wetted the oxygen scavenger package, oxygen absorption was stopped halfway, and the oxygen scavenger package itself stained.
【0037】[0037]
【発明の効果】本発明の品質保持剤隔離用包装材料は、
フィルムあるいはシ−トに非貫通の極薄膜部を残して未
貫通微多孔を穿設し、10,000cc/m2 ・24Hr・atm 以上
の酸素透過度を有するものとすることにより、品質保持
剤の隔離包装材として、、十分な通気性を有し非通液
性、耐液強度などの点で極めて優れた耐液性を発揮す
る。ことに、液状物品や多水分物品に適用した場合に、
液体が品質保持剤を濡らしたり、品質保持剤が染みだし
たりすることなく、機能上、安全衛生性上に優れる。し
たがって、多水分物品に対する品質保持剤あるいは内容
物の漏洩が問題となる品質保持剤の隔離に好適であり、
食品、飲料、青果物などの食品分野のみならず、金属部
品、医薬品等、広い分野で品質保持剤の隔離包装に広く
利用できる。According to the present invention, the packaging material for isolating a quality preservative is
A non-penetrating microporous material is formed in the film or sheet, leaving a non-penetrating ultra-thin film, and having a oxygen permeability of 10,000 cc / m 2 · 24 Hr · atm or more. As an isolation packaging material, it has a sufficient air permeability and exhibits extremely excellent liquid resistance in terms of liquid impermeability, liquid resistance, and the like. In particular, when applied to liquid or high moisture products,
The liquid does not wet the quality preservative or exudes the quality preservative, and is excellent in function and safety and health. Therefore, it is suitable for isolating a quality preservative or a quality preservative in which leakage of contents is a problem with respect to a high moisture product.
It can be widely used for isolation and packaging of quality preservatives in a wide range of fields, such as metal parts and pharmaceuticals, as well as food fields such as foods, beverages and fruits and vegetables.
【図1】 耐熱性フィルム/熱シール性フィルムの積層
シートからなる耐液通気性包装材料の断面図。 FIG. 1 Lamination of heat-resistant film / heat-sealing film
Sectional drawing of the liquid breathable packaging material which consists of a sheet.
【図2】 耐熱性フィルム/不織布または微多孔膜の積
層シートからなる耐液通気性包装材料の断面図。 FIG. 2: Heat resistant film / nonwoven fabric or microporous membrane product
Sectional drawing of the liquid breathable packaging material which consists of a layer sheet.
【図3】 熱シール性フィルムの積層シートからなる耐
液通気性包装材料の断面図。FIG. 3 shows a heat-resistant film made of a laminated sheet.
Sectional drawing of a liquid breathable packaging material .
【図4】 袋の一部に耐液通気性包装材料で品質保持剤
を隔離した物品保存袋の断面図。 FIG. 4 is a liquid preserving agent made of a liquid-permeable and breathable packaging material in a part of a bag .
FIG. 2 is a cross-sectional view of an article storage bag in which is isolated.
【図5】 容器の一部に耐液通気性包装材料で品質保持
剤を隔離した物品保存容器の断面図。 [Fig. 5] The quality is maintained with a liquid-permeable and breathable packaging material for a part of the container .
Sectional drawing of the goods storage container which isolate | separated the agent.
【図6】 袋材料の間に品質保持剤を耐液通気性包装材
料を介して隔離した物品保存袋の断面図。 FIG. 6: A liquid preserving agent is used between the bag material and the liquid-permeable breathable packaging material.
Sectional view of the article storage bag isolated via a charge.
【図7】 容器蓋材の間に品質保持剤を耐液通気性包装
材料を介して隔離した物品保存容器の断面図。 FIG. 7 is a liquid-permeable and breathable packaging of a quality preservative between container lids .
Sectional drawing of the goods storage container isolated via the material.
【図8】 シート状品質保持剤を耐液通気性包装材料で
隔離した物品収納容器の蓋またはキャップの断面図。 [FIG. 8] A sheet-like quality preservative is made of a liquid-permeable and breathable packaging material.
Sectional drawing of the lid or cap of the isolated goods storage container.
【図9】 非通気性外材/シート状品質保持剤/耐液通
気性包装材料で構成して品質保持剤を隔離した容器また
は袋の外壁面の部分断面図。 FIG. 9: Non-breathable external material / sheet-like quality preservative / liquid resistance
A container or container made of a temper
Is a partial sectional view of the outer wall surface of the bag.
【図10】 本発明の耐液通気性包装材料により形成し
た品質保持剤包装体。 FIG. 10 is a cross- sectional view of a liquid-permeable and breathable packaging material of the present invention .
Quality preservative packaging.
Claims (7)
層接着してなる積層フィルムであって、 耐熱性フィルム側から耐熱性フィルムを貫通して少なく
とも熱シ−ル性フィルム側に未貫通の残膜部を残した未
貫通微多孔を穿設してなることにより酸素透過度が10,0
00cc/m2・24Hr・atm 以上であることを特徴とする品質保
持剤隔離用の耐液通気性包装材料。1. A laminated film obtained by laminating and bonding a heat-sealing film to a heat-resistant film, and penetrating the heat-resistant film from the heat-resistant film side and not penetrating at least to the heat-sealing film side. Oxygen permeability is 10,0
A liquid-permeable and breathable packaging material for isolating a quality preservative, characterized by being at least 00 cc / m 2 · 24Hr · atm.
熱シ−ル性フィルムを積層接着してなる積層フィルム
と、熱シ−ル性の不織布、微多孔膜又は耐水性不織布と
を積層接着してなる積層シ−トであって、 耐熱性フィルム側から少なくとも該積層シ−トに未貫通
の残膜部を残した未貫通微多孔を穿設してなることによ
り酸素透過度が10,000cc/m2・24Hr・atm 以上であること
を特徴とする品質保持剤隔離用の耐液通気性包装材料。2. A heat-resistant film alone or a heat-resistant film laminated with a heat-sealing film and a heat-sealing nonwoven fabric, a microporous film or a water-resistant nonwoven fabric. A laminated sheet comprising a non-penetrated microporous material having at least a non-penetrated remaining film portion formed in the laminated sheet from the heat-resistant film side, so that the oxygen permeability is 10,000 cc / cm. A liquid-permeable and breathable packaging material for isolating quality preservatives, characterized by having a m 2 · 24Hr · atm or more.
て、 ヒ−トシ−ル面の逆側より残膜部を残した未貫通微多孔
を穿設してなることにより酸素透過度が10,000cc/m2・2
4Hr・atm 以上であることを特徴とする品質保持剤隔離用
の耐液通気性包装材料。3. A single film having a heat sealing property, wherein a non-penetrated microporous material having a remaining film portion left from a side opposite to a heat seal surface is provided so that oxygen permeability is improved. 10,000cc / m 2 · 2
A liquid-permeable and breathable packaging material for isolating quality preservatives, characterized by having a viscosity of at least 4 hr · atm.
熱シ−ル性フィルムを積層接着してなる積層フィルムに
シ−ル層としてホットメルトを塗布してなる積層フィル
ムであって、 耐熱性フィルム側から少なくとも該積層フィルムに未貫
通の残膜部を残した未貫通微多孔を穿設してなることに
より酸素透過度が10,000cc/m2・24Hr・atm 以上であるこ
とを特徴とする品質保持剤隔離用の耐液通気性包装材
料。4. A laminated film obtained by applying a hot melt as a seal layer to a heat-resistant film alone or a laminated film obtained by laminating and bonding a heat-sealing film to the heat-resistant film. Oxygen permeability is at least 10,000 cc / m 2 · 24 Hr · atm by perforating a non-penetrated microporous material having a non-penetrated remaining film portion at least from the side of the laminated film. Liquid-resistant and breathable packaging material for sequestering agent isolation.
である、請求項1〜4いずれか1項に記載の耐液通気性
包装材料。5. The liquid-permeable and air-permeable packaging material according to claim 1, which has an oxygen permeability of not less than 50,000 cc / m 2 · 24 Hr · atm.
上である、請求項1〜4いずれか1項に記載の耐液通気
性包装材料。6. The liquid-permeable and air-permeable packaging material according to claim 1, which has an oxygen permeability of 100,000 cc / m 2 · 24 Hr · atm or more.
高圧放電穿孔法により穿設されたものである、請求項1
〜4いずれか1項に記載の耐液通気性包装材料。7. An unpenetrated microporous material having an unpenetrated residual film portion,
2. The method according to claim 1, which is formed by a high-pressure discharge drilling method.
The liquid-permeable and breathable packaging material according to any one of Items 1 to 4.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP04375992A JP3183302B2 (en) | 1992-02-28 | 1992-02-28 | Liquid-resistant breathable packaging material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP04375992A JP3183302B2 (en) | 1992-02-28 | 1992-02-28 | Liquid-resistant breathable packaging material |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0640464A JPH0640464A (en) | 1994-02-15 |
JP3183302B2 true JP3183302B2 (en) | 2001-07-09 |
Family
ID=12672694
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP04375992A Expired - Lifetime JP3183302B2 (en) | 1992-02-28 | 1992-02-28 | Liquid-resistant breathable packaging material |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3183302B2 (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007182261A (en) * | 2007-02-22 | 2007-07-19 | Idemitsu Unitech Co Ltd | Atmosphere improving tape for package, package with atmosphere improving tape, and package container with atmosphere improving tape |
JP2010254355A (en) * | 2009-04-27 | 2010-11-11 | Sevenpack Corp | Pack preventing eating and drinking by mistake |
US8691303B2 (en) | 2009-07-31 | 2014-04-08 | The Iams Company | Dusted animal food |
US20110027417A1 (en) | 2009-07-31 | 2011-02-03 | Patrick Joseph Corrigan | Process for Dusting Animal Food |
US9210945B2 (en) | 2009-07-31 | 2015-12-15 | The Iams Company | Animal food having low water activity |
US9173423B2 (en) | 2009-07-31 | 2015-11-03 | The Iams Company | Animal food kibble with electrostatically adhered dusting |
US10104903B2 (en) | 2009-07-31 | 2018-10-23 | Mars, Incorporated | Animal food and its appearance |
RU2749423C2 (en) | 2015-04-28 | 2021-06-10 | Марс, Инкорпорейтед | Method for producing sterilized wet feed product for pets |
-
1992
- 1992-02-28 JP JP04375992A patent/JP3183302B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH0640464A (en) | 1994-02-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4579223A (en) | Oxygen absorbent packet | |
US4485133A (en) | Oxygen absorbent packaging | |
JPS63214170A (en) | Packaging bag containing disoxidation agent | |
JPS6330223B2 (en) | ||
JPS61202843A (en) | Manufacture of air-permeable packaging material | |
JPH085501B2 (en) | Partition film for storing freshness-retaining agent | |
JP3277943B2 (en) | Double package | |
JP3183302B2 (en) | Liquid-resistant breathable packaging material | |
JP3305000B2 (en) | Liquid resistant quality preservative package | |
JPH06100045A (en) | Cut vegetable packaging bag | |
JP3123567B2 (en) | Quality preservative package | |
JP3246538B2 (en) | Packing for lid | |
JPH0745222B2 (en) | Breathable packaging material and freshness preservative packaging | |
JPH044225B2 (en) | ||
JPH0648472A (en) | Water resisting pack for quality retaining agent | |
JP2508617B2 (en) | Oxygen absorber double package | |
JP2666381B2 (en) | Packaging film for oxygen scavenger | |
JP3246537B2 (en) | Packing for lid | |
JPH10120038A (en) | Package for ethanol vapor generating material | |
JPH03305B2 (en) | ||
JP4061448B2 (en) | How to store goods | |
JP3633651B2 (en) | Oxygen absorber packaging material | |
JP2003261182A (en) | Bulkhead material to be used in package | |
JP3243910B2 (en) | Packing for lid | |
JPH068971A (en) | Film for deoxidizing agent and package |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080427 Year of fee payment: 7 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090427 Year of fee payment: 8 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090427 Year of fee payment: 8 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100427 Year of fee payment: 9 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100427 Year of fee payment: 9 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110427 Year of fee payment: 10 |
|
EXPY | Cancellation because of completion of term |