JPH02248244A - Heat-shrinkable sealing lid material - Google Patents
Heat-shrinkable sealing lid materialInfo
- Publication number
- JPH02248244A JPH02248244A JP6999989A JP6999989A JPH02248244A JP H02248244 A JPH02248244 A JP H02248244A JP 6999989 A JP6999989 A JP 6999989A JP 6999989 A JP6999989 A JP 6999989A JP H02248244 A JPH02248244 A JP H02248244A
- Authority
- JP
- Japan
- Prior art keywords
- heat
- lid material
- sealing
- shrinkable
- aluminum foil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000463 material Substances 0.000 title claims abstract description 27
- 238000007789 sealing Methods 0.000 title claims abstract description 15
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 17
- 239000011888 foil Substances 0.000 claims abstract description 17
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229920006257 Heat-shrinkable film Polymers 0.000 claims abstract description 15
- 229920003002 synthetic resin Polymers 0.000 claims abstract description 11
- 239000000057 synthetic resin Substances 0.000 claims abstract description 11
- 239000012793 heat-sealing layer Substances 0.000 claims abstract description 6
- 238000004806 packaging method and process Methods 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 4
- 230000001954 sterilising effect Effects 0.000 abstract description 18
- 238000004659 sterilization and disinfection Methods 0.000 abstract description 18
- 230000037303 wrinkles Effects 0.000 abstract description 17
- -1 polypropylene Polymers 0.000 abstract description 8
- 239000004743 Polypropylene Substances 0.000 abstract description 5
- 229920001155 polypropylene Polymers 0.000 abstract description 5
- 238000009835 boiling Methods 0.000 abstract description 4
- 239000004952 Polyamide Substances 0.000 abstract description 2
- 238000010030 laminating Methods 0.000 abstract description 2
- 229920002647 polyamide Polymers 0.000 abstract description 2
- 229920000728 polyester Polymers 0.000 abstract description 2
- 238000012856 packing Methods 0.000 abstract 2
- 241000758791 Juglandaceae Species 0.000 description 13
- 235000020234 walnut Nutrition 0.000 description 13
- 239000010408 film Substances 0.000 description 8
- 230000001070 adhesive effect Effects 0.000 description 7
- 239000000853 adhesive Substances 0.000 description 6
- 235000013305 food Nutrition 0.000 description 6
- 239000004677 Nylon Substances 0.000 description 4
- 229920001903 high density polyethylene Polymers 0.000 description 4
- 239000004700 high-density polyethylene Substances 0.000 description 4
- 229920001778 nylon Polymers 0.000 description 4
- 235000013361 beverage Nutrition 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 239000003566 sealing material Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000005038 ethylene vinyl acetate Substances 0.000 description 2
- 239000012775 heat-sealing material Substances 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 229920001684 low density polyethylene Polymers 0.000 description 2
- 239000004702 low-density polyethylene Substances 0.000 description 2
- 235000013336 milk Nutrition 0.000 description 2
- 239000008267 milk Substances 0.000 description 2
- 210000004080 milk Anatomy 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- ZRKWMRDKSOPRRS-UHFFFAOYSA-N N-Methyl-N-nitrosourea Chemical compound O=NN(C)C(N)=O ZRKWMRDKSOPRRS-UHFFFAOYSA-N 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 229920001328 Polyvinylidene chloride Polymers 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000002998 adhesive polymer Substances 0.000 description 1
- 235000015278 beef Nutrition 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009820 dry lamination Methods 0.000 description 1
- 210000002969 egg yolk Anatomy 0.000 description 1
- 235000011389 fruit/vegetable juice Nutrition 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 235000021539 instant coffee Nutrition 0.000 description 1
- 235000015110 jellies Nutrition 0.000 description 1
- 239000008274 jelly Substances 0.000 description 1
- 239000002648 laminated material Substances 0.000 description 1
- 229920000092 linear low density polyethylene Polymers 0.000 description 1
- 239000004707 linear low-density polyethylene Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920006284 nylon film Polymers 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 238000009832 plasma treatment Methods 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 239000005033 polyvinylidene chloride Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 235000008476 powdered milk Nutrition 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野１
本発明はＭＲＱ状の熱封緘石材、特にガラス瓶、プラス
デック容器、アルミニウム箔容２３等に飲料又は食品を
充填し、熱封緘した後レトルト殺菌あるいはボイル殺菌
等の熱処理を必要とする色装容器の改良された熱封緘ゐ
材に関する。Detailed Description of the Invention [Industrial Application Field 1] The present invention relates to MRQ-shaped heat-sealed stone materials, particularly glass bottles, Plus Deck containers, aluminum foil containers, etc., filled with beverages or foods, heat-sealed, and then retort sterilized. The present invention also relates to an improved heat sealing material for colored containers that require heat treatment such as boiling sterilization.
［従来の技術Ｊ
近年合成樹脂の発達に伴い、数多くのヒートシール材が
開発され、飲料、食品等の自動包装分野に取り入れられ
、この技術は大幅に進歩し、また内容物に酸讃遮断をし
て１３臂を出来るだけ少なくするため合成樹脂層にアル
ミニウム箔を積層することは数多く提案されている。そ
して、これらの技術を利用してミルク、牛乳、ジュース
等のｔル体、ジャム、ゼリー、水羊かんの如き品枯質物
体、インスタントコーヒー、粉末ミルク等の粉末、ある
いは魚、牛肉等の煮物（従来は缶詰となっていたもの）
等の包装品が大量に市場に出荷され、スーパー、食料品
店等の店頭に飾られている。[Conventional technology J] With the development of synthetic resins in recent years, many heat-sealing materials have been developed and have been incorporated into the field of automatic packaging for beverages, foods, etc., and this technology has made significant progress, and has also been used to protect the contents from acid oxidation. In order to reduce the number of arms as much as possible, many proposals have been made to laminate aluminum foil on the synthetic resin layer. Using these techniques, we can produce milk, milk, juice, etc., jams, jelly, dried substances such as water yolk, powders such as instant coffee and powdered milk, and boiled foods such as fish and beef. (Previously canned)
Large quantities of packaged products such as these are shipped to the market and displayed on the shelves of supermarkets, food stores, and other stores.
これらの包装品は、その包装自体に美麗な印刷が施され
、主婦らの購買心を誘っている。These packaged products have beautiful printing on the packaging itself, attracting housewives and others to purchase them.
［発明が解決しようとする課ｆｆｉ］
前記の如き、飲料や食品の包装品の中には容器に充填し
、熱封緘性蓋材をヒートシールして密閉した後、更にボ
イル殺菌、レトルト殺菌等の熱処理を必要とする食品の
包装品も少なくない。[Problem to be solved by the inventionffi] As mentioned above, some of the packaged products for beverages and foods are filled into containers, heat-sealed with a heat-sealing lid material, and then further subjected to boil sterilization, retort sterilization, etc. There are many food packaging products that require heat treatment.
これらの容器が細目の瓶等であって、蓋材の面積の小さ
い場合にはさほど目立たず問題が少ないが、易開封性を
付与するために大きな開口部を有する包装容器（例えば
、本革かんやプラスチック【ｈ詰の如き底が浅くて開１
コ部の大きなプラスチック容器）の場合には、蓋材をヒ
ートシールするときの蓋材の膨張によりシワが出来易い
。If these containers are narrow bottles and the area of the lid material is small, they will be less noticeable and there will be fewer problems. Or plastic [Shallow bottom like H-packed and open 1
In the case of plastic containers (with large corners), wrinkles tend to form due to expansion of the lid material when it is heat-sealed.
また、ヒートシールがたとえうまく行ってシワがなく熱
封緘できたとしても、その後のボイル殺菌やレトルト殺
菌時の内部圧による膨らみやその後の冷却による収縮に
より１Ｍ材はクルミやシワが発生し易い。Furthermore, even if heat sealing is successful and wrinkle-free, 1M material is prone to walnuts and wrinkles due to swelling due to internal pressure during subsequent boil sterilization or retort sterilization and contraction due to subsequent cooling.
このクルミやシワはヒートシール部の近辺（容器首の周
辺部）に多く見られ、蓋中火部は君子凸状を呈する。These walnuts and wrinkles are often seen near the heat-sealed part (around the neck of the container), and the middle part of the lid has a convex shape.
このような乙部のクルミやシワは、乙部に印刷された文
字や図柄を見にくくさせるだけでな（、製品の商品価値
を著しく落ずため、内容物の品質も劣化していると誤認
させる危険さえある。Such walnuts and wrinkles on the Oto part not only make it difficult to read the letters and designs printed on the Otsu part (but also significantly reduce the commercial value of the product, and there is even a risk that the quality of the contents has deteriorated). be.
本発明前らは、ヒートシールばかりでなくボイル殺菌や
レトルト殺菌によってもクルミやシワの生じない熱封緘
蓋に関する上記の問題を解決すべく研究を行なった。The inventors of the present invention conducted research to solve the above-mentioned problems regarding heat-sealed lids that do not produce walnuts or wrinkles not only by heat sealing but also by boiling sterilization and retort sterilization.
［課題を解決するための１段］
本発明は、少な（ともアルミニウム箔、合成樹脂フィル
ム及びヒートシール層とから構成された多層の包装容器
用の蓋材においてアルミニウム箔の外側に熱収縮性フィ
ルムを積層し、でなる熱収縮性封緘器材を開発すること
により前記の問題を解決した。[One Step to Solve the Problems] The present invention provides a lid material for a multilayer packaging container composed of a small amount of aluminum foil, a synthetic resin film, and a heat-sealing layer, in which a heat-shrinkable film is provided on the outside of the aluminum foil. The above problem was solved by developing a heat-shrinkable sealing material made by laminating the following materials.
すなわち、本発明に使用するアルミニウム箔はｒＬａ素
バリア性を持たせるためのものであり、１枚であっても
また複数枚であっても良い。更に、箔よりも薄い蒸着膜
の如き薄いものでも充分な′１ｌｉＩ素バリア性がある
なら使用できる。That is, the aluminum foil used in the present invention is intended to provide rLa elementary barrier properties, and may be one or more than one sheet. Furthermore, a thin film such as a vapor-deposited film thinner than foil can also be used if it has sufficient '1liI elemental barrier properties.
合成樹脂フィルムとしては１通常包装用着材に使用され
ている合成樹脂フィルムが使用でき、高密度又は低密度
ポリエチレン（リニヤ低密度ポリエチレンも含む、）、
ボリブ［１ピレン、ポリ塩化ビニル、ポリビニルアルコ
ール、ポリ塩化ビニリデン等が価格、性質等の点から選
ばれる。As the synthetic resin film, 1. Synthetic resin films normally used for packaging materials can be used, including high-density or low-density polyethylene (including linear low-density polyethylene),
Bolib [1-pyrene, polyvinyl chloride, polyvinyl alcohol, polyvinylidene chloride, etc. are selected from the viewpoint of price, properties, etc.
これらの積層のためには共押出ラミネーション、ドライ
ナミネーション等により積層する。Ｓ＋層の場合にブラ
イマー処理、プラズマ処理等を行なっても良い。These layers are laminated by coextrusion lamination, dry lamination, or the like. In the case of the S+ layer, brimer treatment, plasma treatment, etc. may be performed.
蓋材としである程度の剛性を必要とするときは紙等を使
用して積層しても良い。When a certain degree of rigidity is required as a lid material, paper or the like may be used and laminated.
ヒートシール層としてはボイル殺菌、レトルト殺菌等の
処理温度により選択が必要であるが、低密度又は高密度
ポリエチレン、エヂレンー酢酸ビニル樹脂、変性ポリエ
チレン（ポリプロピレン）等通常のヒートシール用組成
物を使用できる。これは容器との接着面に積層される。The heat-sealing layer must be selected depending on the processing temperature of boil sterilization, retort sterilization, etc., but ordinary heat-sealing compositions such as low-density or high-density polyethylene, ethylene-vinyl acetate resin, modified polyethylene (polypropylene), etc. can be used. . This is laminated to the adhesive surface with the container.
蓋材のクルミやシワの防止のために使用する熱収縮性フ
ィルムは二軸延伸されたポリニスデル。The heat-shrinkable film used for the lid material to prevent walnuts and wrinkles is biaxially stretched polynisdel.
ポリアミド（ポリプロピレン）等の比較的高融点の合成
樹脂フィルムが好ましい。A synthetic resin film having a relatively high melting point such as polyamide (polypropylene) is preferred.
これらの収縮性は、ボイル殺菌用なのか、１００℃以上
のレトルト殺菌なのかにより収縮；トを選ばねばならな
いが、高温処理が必要な場＆には収縮率が小さい方が良
い傾向がある。The shrinkage of these materials must be selected depending on whether the material is for boil sterilization or retort sterilization at 100° C. or higher, but a smaller shrinkage rate tends to be better in cases where high-temperature processing is required.
すなわち、８０℃で５分の加熱で１．２〜５％。９０℃
で５分の加熱で１．７〜７％又は１００℃で５分の加熱
で３〜１０％程度収縮するフィルムが良い。That is, 1.2-5% by heating at 80°C for 5 minutes. 90℃
A film that shrinks by about 1.7 to 7% when heated at 100°C for 5 minutes or 3 to 10% when heated at 100°C for 5 minutes is good.
通常の二輪延伸ナイロンフィルムの熱水収縮率（１００
℃×５分間）は１．０〜３６０％であり、本発明のそれ
が３〜１０％より小さいため充分な効果が期待できない
、一方、１０！＋６より収縮率が大きいと、収縮が大き
すぎて他の積層材との剥離がおきたり、ヒートシールを
弱めたりするので好ましくない。Hot water shrinkage rate of normal two-wheel stretched nylon film (100
℃ x 5 minutes) is 1.0 to 360%, and since the value of the present invention is smaller than 3 to 10%, a sufficient effect cannot be expected.On the other hand, 10! If the shrinkage rate is greater than +6, the shrinkage is too large, which may cause peeling from other laminated materials or weaken heat sealing, which is not preferable.
熱収縮性フィルムの厚みは庁通９〜５０ｊＩｍ位が使い
易い、９μｍより薄いと積層作業も困難で、また複数枚
を使用すれば別であるが収縮力も弱いところからクルミ
やシワの充分な消失には力不足になり易い。It is easy to use a heat-shrinkable film with a thickness of 9 to 50 μm according to the Agency. If it is thinner than 9 μm, lamination is difficult, and if multiple sheets are used, the shrinkage force is weak, so walnuts and wrinkles will disappear sufficiently. tend to lack power.
一方、５０１Ｌｍ以」二であると市販品もなく特注品と
なり高価となるばかりでなく収縮力も、収縮率が僅かで
も力は大きくなり、他へゆがみを与えるので避けた方が
良い。On the other hand, if it is less than 501 Lm, there is no commercially available product and it is a custom-made product, which is not only expensive, but also the shrinkage force becomes large even if the shrinkage rate is small, causing distortion to other parts, so it is better to avoid it.
そしてこの熱収縮性フィルムが石材全体の厚みの１０〜
５０％になるように全体の厚みと熱収縮性フィルムの厚
みを選択するとクルミやシワになりにくい熱収縮性封緘
蓋材が得られる。This heat-shrinkable film is 10 to 10 times the thickness of the entire stone.
If the overall thickness and the thickness of the heat-shrinkable film are selected to be 50%, a heat-shrinkable sealing material that is resistant to walnuts and wrinkles can be obtained.
なお熱収縮性フィルムは、アルミニウム箔の内側（容器
との接着面）にあるときは効果があまりなり、蓋にクル
ミやシワを生ずるので外側に積層することが必要である
。この熱収縮性フィルムに直接印刷することが望ましい
が、この上に印刷されたフィルムを積層しても良い。Note that the heat-shrinkable film is not very effective when placed on the inside of the aluminum foil (the surface that adheres to the container), causing walnuts and wrinkles on the lid, so it is necessary to laminate it on the outside. Although it is desirable to print directly on this heat-shrinkable film, a printed film may be laminated thereon.
本発明蓋材を用いてヒートシールした包装品は、ボイル
殺菌やレトルト殺菌をすることで熱収縮フィルムを収縮
させ、蓋を繁張状態におくことにより蓋のクルミやシワ
をなくし、包装品の商品価値を高めることが可能となっ
た。Packaged products heat-sealed using the lidding material of the present invention are subjected to boil sterilization or retort sterilization to shrink the heat-shrinkable film and leave the lid in a stretched state to eliminate walnuts and wrinkles on the lid. It became possible to increase the product value.
［実施例Ｊ
以下実施例により、本発明の詳細な説明するが、本発明
はこれに限らｔするわけではない。[Example J] The present invention will be described in detail with reference to Examples below, but the present invention is not limited thereto.
（実１Ｍｌ＠Ｉｔ）
９ ＩＬｍのアルミニウム箔の両面につｌ／タン系の接
着剤を９布し、片面に二輪延伸した１５１Ｌｍの６ナイ
ロン（収縮率１０ （１”ＣＸ ５分、３６０％）を、
片面にはＭＩｌ、０の高密度のポリエチレンを積層し、
熱収縮性封緘蓋材とした。(Actual 1Ml @ It) 9 coats of 1/tan adhesive on both sides of 9ILm aluminum foil, 151Lm of 6 nylon stretched on one side with two wheels (shrinkage rate 10 (1”CX 5 minutes, 360%) of,
One side is laminated with high-density polyethylene with MIl, 0.
It was made into a heat-shrinkable sealing material.
この蓋材を、２００ａｍの厚みのＭＦｒ２．Ｆｉのポリ
プロピレンに１０μｍ、Ｍｌｌ、０の高密度ポリエチレ
ンの積層された容器（内容物は水）にヒートシールした
。この包装品１００ケに１５分間のボイル殺菌を行なっ
て蓋のシワやクルミの発生状況を見たが、いずれもｆ滑
に密１・Ｉされていた。This lid material was coated with MFr2. It was heat-sealed to a container (contains water) in which polypropylene of Fi and high-density polyethylene of 10 μm, Mll, 0 were laminated. 100 of these packages were sterilized by boiling for 15 minutes and the appearance of wrinkles and walnuts on the lids was examined, and all were found to be tightly packed.
（実施例２）
二軸延伸ポリニスデル（１２μｍ）／接着剤／二軸延伸
ナイロン（１５μｍ）／接着剤／アルミニウム箔（９μ
ｒｎ）／接着剤／エヂレンー酢酸ビニル共重合体（５０
μｍ）（但し収縮率は１００℃×５分でポリエステルは
１．０％、ナイ［１ンは２．０％である。）を水を満た
したポリプロピレン容器にヒートシールし、１１．５℃
のレトルト殺菌を行なった。結果はとにシワやクルミの
発生はなかった。(Example 2) Biaxially oriented polynisdel (12μm)/Adhesive/Biaxially oriented nylon (15μm)/Adhesive/Aluminum foil (9μm)
rn)/adhesive/edylene-vinyl acetate copolymer (50
μm) (however, the shrinkage rate is 100°C x 5 minutes, 1.0% for polyester, 2.0% for nylon) in a polypropylene container filled with water, and heated to 11.5°C.
Retort sterilization was performed. As a result, there were no wrinkles or walnuts.
（比較例）
ポリエチレン（２０μｍ）／アルミニウム箔（９ｒｚｍ
）／接着剤／６−ナイロン（１５ｕｒｎ）／接着剤／エ
チレンー酢酸ビニル共重合体（２５１１ｍ）の積層体を
実施例２と同じように処理した。その結果１００ケの包
装体のうち、ヒートシール破損はなかったが、２ケに蓋
の周辺部にクルミが認められ、１ケにヒートシール部の
ｍｌにシワの発生した包装体が認められた。(Comparative example) Polyethylene (20μm)/aluminum foil (9rzm
)/adhesive/6-nylon (15 urn)/adhesive/ethylene-vinyl acetate copolymer (2511 m) laminate was treated in the same manner as in Example 2. As a result, out of 100 packages, there was no damage to the heat seal, but walnuts were observed in the periphery of the lid in 2 packages, and in 1 package, wrinkles were observed in the heat seal area. .
［効 果Ｊ
本願発明は、レトルト殺菌あるいはボイル殺菌を必要と
する少なくともアルミニウム箔、合成樹脂フィルム及び
ヒートシール層からなる包装容器の改良された熱封緘蓋
材であって、従来包装後熱による殺菌の際に問題となる
蓋のクルミやシワの発生を防止できたものであり、この
結果包装品のゆがみやシワによる商品価値の低下を防止
できると共に、蓋表面が乎滑に保たれるため印刷等の効
果を充分に発揮できる熱収縮性１・１緘蓋材を提供でき
た。[Effect J] The present invention is an improved heat-sealing lid material for packaging containers that requires retort sterilization or boil sterilization and is made of at least an aluminum foil, a synthetic resin film, and a heat-sealing layer. This prevents the occurrence of walnuts and wrinkles on the lid, which can be a problem when packaging products.As a result, it is possible to prevent the reduction in product value due to distortion and wrinkles of the packaged product, and the lid surface is kept smooth, making it easier to print. We were able to provide a heat-shrinkable 1.1 lid material that can fully exhibit the following effects.
特許出願人 昭和アルミニウム株式会社代 理 人
弁理士 菊 地 積Patent applicant Showa Aluminum Co., Ltd. Agent
Patent Attorney Seki Kikuchi
Claims (3)
びヒートシール層とから構成された多層の包装容器用の
蓋材において、アルミニウム箔の外側（熱封緘部の反対
側）に熱収縮性フィルムを積層してなることを特徴とす
る熱収縮性封緘蓋材。(1) In a multilayer lid material for a packaging container composed of at least aluminum foil, a synthetic resin film, and a heat-sealing layer, a heat-shrinkable film is laminated on the outside of the aluminum foil (on the opposite side of the heat-sealing part). A heat-shrinkable sealing lid material characterized by:
材の厚さの１０〜５０％の割合を占めることからなる請
求項第１項の熱収縮性封緘蓋材。(2) The heat-shrinkable sealing lid material according to claim 1, wherein the heat-shrinkable film has a thickness of 9 to 50 μm and accounts for 10 to 50% of the thickness of the lid material.
びそれと直角方向においてそれぞれに８０℃で５分間加
熱により１．２〜５％、９０℃で５分間加熱により１．
７〜７％、または １００℃で５分間加熱により３〜１０％である熱収縮性
フィルムである請求項第１項の熱収縮性封緘蓋材。(3) The total shrinkage rate of the heat-shrinkable film is 1.2 to 5% in the machine direction and the direction perpendicular thereto when heated at 80°C for 5 minutes, and 1.2% when heated at 90°C for 5 minutes.
The heat-shrinkable sealing lid material according to claim 1, which is a heat-shrinkable film having a density of 7 to 7%, or 3 to 10% by heating at 100°C for 5 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6999989A JPH02248244A (en) | 1989-03-22 | 1989-03-22 | Heat-shrinkable sealing lid material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6999989A JPH02248244A (en) | 1989-03-22 | 1989-03-22 | Heat-shrinkable sealing lid material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02248244A true JPH02248244A (en) | 1990-10-04 |
Family
ID=13418879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6999989A Pending JPH02248244A (en) | 1989-03-22 | 1989-03-22 | Heat-shrinkable sealing lid material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02248244A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996024278A1 (en) * | 1995-02-07 | 1996-08-15 | Chul Hwang | Packaged and dried instant food structure and cooking cup for such food structure |
| WO2002026493A1 (en) * | 2000-09-29 | 2002-04-04 | Dupont Teijin Films U.S. Limited Partnership | Multi-layer polymeric film |
| US7824749B2 (en) | 2001-09-24 | 2010-11-02 | Dupont Teijin Films U.S. Limited Partnership | Multi-layer polymeric film for packaging ovenable meals |
| JP2018062377A (en) * | 2016-10-14 | 2018-04-19 | 昭和電工パッケージング株式会社 | Sealing material and container sealed by sealing material |
| JP2019038188A (en) * | 2017-08-25 | 2019-03-14 | 興人フィルム＆ケミカルズ株式会社 | Film for lid body of packaging container and food packaging package |
-
1989
- 1989-03-22 JP JP6999989A patent/JPH02248244A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996024278A1 (en) * | 1995-02-07 | 1996-08-15 | Chul Hwang | Packaged and dried instant food structure and cooking cup for such food structure |
| WO2002026493A1 (en) * | 2000-09-29 | 2002-04-04 | Dupont Teijin Films U.S. Limited Partnership | Multi-layer polymeric film |
| US8445085B2 (en) | 2000-09-29 | 2013-05-21 | Dupont Teijin Films U.S. Limited Partnership | Multi-layer polymeric film |
| US7824749B2 (en) | 2001-09-24 | 2010-11-02 | Dupont Teijin Films U.S. Limited Partnership | Multi-layer polymeric film for packaging ovenable meals |
| JP2018062377A (en) * | 2016-10-14 | 2018-04-19 | 昭和電工パッケージング株式会社 | Sealing material and container sealed by sealing material |
| KR20180041584A (en) * | 2016-10-14 | 2018-04-24 | 쇼와 덴코 패키징 가부시키가이샤 | Sealing material and container sealed by the same |
| JP2019038188A (en) * | 2017-08-25 | 2019-03-14 | 興人フィルム＆ケミカルズ株式会社 | Film for lid body of packaging container and food packaging package |
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