JP2004010156A - Food packaging material used under heating and packaging method - Google Patents

Food packaging material used under heating and packaging method Download PDF

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Publication number
JP2004010156A
JP2004010156A JP2002169076A JP2002169076A JP2004010156A JP 2004010156 A JP2004010156 A JP 2004010156A JP 2002169076 A JP2002169076 A JP 2002169076A JP 2002169076 A JP2002169076 A JP 2002169076A JP 2004010156 A JP2004010156 A JP 2004010156A
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Japan
Prior art keywords
heating
hot water
microwave oven
food
steam
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JP2002169076A
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Japanese (ja)
Inventor
Hanae Horiuchi
堀内 花恵
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Individual
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a food packaged body which does not pose a threat of explosion even if it is removed from a seal-packaging body and is subjected, as it is, to a heating process by a microwave oven and/or steam heating and/or boiling water. <P>SOLUTION: A packaging material is provided with perforations of 1 μ-5 cm in diameter being bored at appropriate positions thereof, and the packaging material is prepared as it is, or by stick-fixing, as is required, an air-permeable film such as cooking paper to cover the perforations. This packaging material is used to wrap food that is to be subjected to heating by a microwave oven and/or steam heating and/or boiling water, and the food packaged body thus obtained is sealed with a non-air-ermeable wrapping material. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
本発明は、御飯、吸水米、調理食品、これらの冷凍品などの電子レンジ及び/又は蒸気加熱及び/又は熱湯による加熱に対応する食品を包装する材料及びその包装方法に関するものである。
本発明による電子レンジ及び/又は蒸気加熱及び/又は熱湯による加熱に対応する食品包装品は、密封した不通気性包材を開封して取出したとき、そのまま加温もしくは加熱しても、暴発などすることなく、蒸気を抜くことができるものである。
【0002】
【従来の技術】
一般に、電子レンジ及び/又は蒸気加熱及び/又は熱湯による加熱に対応する食品の包装には、不通気性合成樹脂フィルムを用い、これで作ったパッケージの底部に電子レンジ及び/又は蒸気加熱及び/又は熱湯による加熱に対応する食品を入れ、不通気性合成樹脂フィルムで蓋をして周囲を加熱熔着し、完全密封型の包装を行っている。
これを電子レンジにかけたり、蒸気加熱したりする場合は、一部を開封して加熱するようにして、開封部分から蒸気を逃して暴発を防止している。
【0003】
また、これ以外にも、蓋の加熱熔着部分に工夫して、一定の熱気圧がかかった時に、一部に通気部を生じさせ、蒸気を逃したり、蓋のフィルムを2重にし、内側に多くの孔を設け、外側のフィルムが一定の蒸気圧がかかったとき、ふくらんで破れるように工夫したものも知られている。
これら従来の電子レンジ等で加熱する食品の包装は、直接各種加熱に対応する食品を包装する材料に工夫をこらしたものであるが、完全密封後の蒸気圧のわずかな増加によって蒸気を逃すようにするのに、かなり困難な工夫を伴うものであった。
【0004】
【発明が解決しようとする課題】
本発明においては、完全密封は、食品の直接包装とは別の包装材料、即ち、2重の包装材料で行うこととし、2重の包装材料で密封した電子レンジ及び/又は蒸気加熱及び/又は熱湯による加熱に対応する食品の包装物は、2重の包装材料から取り出して、直ちに電子レンジ、熱湯、蒸気等による加熱を行っても、暴発などしないようにした電子レンジ及び/又は蒸気加熱及び/又は熱湯による加熱に対応する食品の包装材料及び包装方法を開発することを目的とした。
【0005】
【課題を解決するための手段】
本発明においては、2重包装の中の電子レンジ及び/又は蒸気加熱及び/又は熱湯による加熱に対応する食品の包装材料に、直径1μ〜5cmの円形、多角形又は星形の孔及び/又は短径1μ〜5cmの楕円形の孔及び/又は一辺の長さが1μ〜5cmの正方形、矩形、三角形又は各種変形型の孔を全面もしくは適宜の個所に設けることによって、これら孔から蒸気を逃し、暴発を防ぐことができるものである。
【0006】
一般に、電子レンジ及び/又は蒸気加熱及び/又は熱湯による加熱に対応する食品の包装材料は、ナイロン、ポリエステル、ポリエチレン、ポリプロピレンなどの単層、二層、三層のフィルムからなるもので、これを袋状にし、加熱する食品を封入シールするか、底部と蓋部とに成型し、底部に食品をつめ、蓋部を合せて周囲を同一樹脂部で熔着して電子レンジ及び/又は蒸気加熱及び/又は熱湯による加熱に対応する食品が包装されている。
【0007】
本発明における各種の孔は、底部にも蓋部にも設けることができる。
各種の直径1μ〜5cmの孔は、基本的にはレーザー光線によって、あけることができ、また大きい孔は打ち抜きでよく、更には針による押し開けでもよい。直径1μ〜100μの孔であれば、底部に設けても、食品の液部が出ることもない。
蓋部には直径1μ〜5cmの孔を設けることができる。直径1μ〜100μの孔であれば、食品の液部が出ることもなく、またほとんど見えないので、そのままでもよいが、直径100μ〜5cmの孔では、食品や食品の液部がもれ出すことがあるので、それら孔をおおうように通気性のある不織布や調理紙又は通気性のないシール等で周囲を接着させておけばよい。但し、通気性のないシール等の場合はその部分だけを加熱前にはがす必要がある。
【0008】
本発明においては、直径1μ〜5cmの円形、多角形又は星形の孔及び/又は短径1μ〜5cmの楕円形の孔及び/又は一辺の長さ1μ〜5cmの正方形、矩形、三角形又は各種変形型の孔が均一又はごちゃまぜに設けられたり、また直径1cm〜5cmの孔であれば蓋に1〜5個位設けたり、蓋に1mm〜1cmの孔をごちゃまぜに設けることができる。また、蓋の代りに全面を適宜の孔を設けた5〜100μ厚のラミネートシールでおおうこともできる。
孔が大きくて、孔から食品や液部がもれ出すのを防止するために各種の孔をおおうように必要な適宜個所に調理紙等の通気性膜又は通気性のないシール等を貼着することができる。
【0009】
本発明においては、必要に応じて通気性膜又は通気性のないシール等を貼着する包装方法で包装した電子レンジ及び/又は蒸気加熱及び/又は熱湯による加熱に対応する食品包装体は、ナイロン、ポリエステル、ポリエチレン、ポリプロピレンなどの単層、二層、三層のフィルムからなる袋に入れ、口を熔着し、完全密封して、電子レンジ及び/又は蒸気加熱及び/又は熱湯による加熱に対応する食品の包装は完了する。不通気性のシールを貼着した場合は、こすれて破れたり、はがれるおそれのない場合は、外袋を省略することもできる。
【0010】
本発明の包装方法においては、あらゆる電子レンジ及び/又は蒸気加熱及び/又は熱湯による加熱に対応する食品を包装できるが、例示すれば、御飯、吸水米、シューマイ、酢豚などがあげられる。
次に、本発明の実施例を示す。
【0011】
【実施例1】
P・Pフィラーフィルムで外径10cm×15cmの大きさのフィルム成型の容器の底部とこれにかぶせるナイロンとポリエチレン製のフィルムを張り合せた二層フィルムの蓋を作り、蓋の中央部に直径2mmの円形の孔を2個あけた。
上記の容器底部に一食用量の吸水量65%の吸水米を160g入れ、上記の孔をあけ、孔のまわりのみを調理紙で覆い周囲を貼着したものと、穴をあけただけのそのままのものとに、蓋をして熔着したものの2種類を作った。
【0012】
得られた吸水米包装体をナイロンとポリエチレンの二層フィルムで作った袋に入れ、口を熔着して密封し、1週間冷蔵保存した。
得られた吸水米包装体の密封袋から吸水米包装体をとり出し、そのまま500W電子レンジに3分30秒かけて、加熱した処どちらも美味なたきたての御飯を作ることができた。
【0013】
【実施例2】
実施例1の食品サンプルを[0012]と同様、2重に包装したものを冷凍で1週間保存後一旦冷蔵解凍し500Wレンジで3分30秒かけて加熱したところ実施例1と同様どちらも非常に美味な御飯となった。
冷凍のものをそのまま1.4kWレンジで2分間加熱した場合も一旦冷蔵解凍したものと同様美味な御飯となった。
【0014】
【実施例3】
ピーピーフィラー成型で1辺が150m/m×10m/m、深さが20m/mの食品容器を成型する前のシート時に全面に4μの穴をあけそれを上記の大きさに成型しその食品容器の中に140gの吸水量58%の吸水米を入れ上部をナイロンとポリエチレンを張り合せたフィルムに容器同様5μの穴を全面にあけたフィルムを熔着し不通気性ナイロンラミネート袋に入れ、口を熔着して、1週間冷蔵保存した。1週間後冷蔵庫より取り出し、更に不通気性ナイロンラミネート袋より取り出し、そのまま熱湯の中で約4分間ゆで上げて試食したところ香りのある大変美味な170g(65%吸水)の御飯が炊き上がっていた。
また、上記吸水量58%の吸水米封入のサンプルを−18℃で冷凍1ヶ月後保存したのちナイロンラミネート袋より取り出しそのまま約8分間熱湯で加熱したところ上記と同様うまい御飯となっていた。
【0015】
【発明の効果】
本発明では、電子レンジ及び/又は蒸気加熱及び/又は熱湯による加熱に対応する食品の包装材料の適宜個所に直径1μ〜5cmの各種形状の孔をあけておくことによって、不通気性密封袋からとり出して、そのまま電子レンジにかけても、暴発などしない電子レンジ及び/又は蒸気加熱及び/又は熱湯による加熱に対応する食品の包装体とすることができた。
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a material for packaging food such as rice, water-absorbed rice, cooked food, and frozen products thereof, which can be heated by microwave oven and / or steam heating and / or hot water, and to a packaging method thereof.
The food package corresponding to the microwave oven and / or steam heating and / or hot water heating according to the present invention may be heated or heated as it is when the sealed impermeable packaging material is opened and taken out. The steam can be released without performing.
[0002]
[Prior art]
Generally, an impermeable synthetic resin film is used for packaging foodstuffs corresponding to microwave oven and / or steam heating and / or heating with hot water, and a microwave oven and / or steam heating and / or steam is placed on the bottom of a package made therefrom. Alternatively, foods that can be heated with hot water are put in, the lid is covered with an air-impermeable synthetic resin film, and the periphery is heated and welded, so that a completely sealed package is performed.
When this is placed in a microwave oven or heated with steam, a part is opened and heated to escape steam from the opened portion to prevent explosion.
[0003]
Also, besides this, by devising the heat-welded part of the lid, when a certain hot air pressure is applied, a vent is created in part, so that steam can escape or the lid film is doubled, There is also known a device in which a large number of holes are provided so that the outer film swells and breaks when a constant vapor pressure is applied.
The packaging of foods that are heated by these conventional microwave ovens and the like is based on materials used for packaging foods that are directly compatible with various types of heating. It was quite difficult to do this.
[0004]
[Problems to be solved by the invention]
In the present invention, the complete sealing is performed by a packaging material different from the direct packaging of food, that is, a double packaging material, and the microwave and / or steam heating and / or steam sealing with the double packaging material. The food package corresponding to the heating with hot water is taken out of the double packaging material and immediately heated with a microwave oven, hot water, steam or the like, so that the microwave oven and / or the steam heating and / or the steam heating and so on are prevented. An object of the present invention is to develop a packaging material and a packaging method for foods corresponding to heating with hot water.
[0005]
[Means for Solving the Problems]
In the present invention, a food packaging material corresponding to microwave and / or steam heating and / or hot water heating in a double package is provided with a circular, polygonal or star-shaped hole having a diameter of 1 μ to 5 cm and / or By providing elliptical holes with a minor axis of 1 μ to 5 cm and / or square, rectangular, triangular or various deformable holes with a side length of 1 μ to 5 cm on the entire surface or at appropriate locations, steam can escape from these holes. , Can prevent explosion.
[0006]
In general, food packaging materials corresponding to microwave oven and / or steam heating and / or heating with hot water are made of a single-layer, two-layer, or three-layer film of nylon, polyester, polyethylene, polypropylene, or the like. Put into a bag and seal the food to be heated or molded into the bottom and lid, fill the food with the bottom, fit the lid together and weld the surroundings with the same resin part, microwave oven and / or steam heating And / or foodstuffs corresponding to heating with hot water are packaged.
[0007]
Various holes in the present invention can be provided in the bottom and the lid.
Various holes having a diameter of 1 μm to 5 cm can be basically formed by a laser beam, and large holes may be punched out, or may be punched out with a needle. If the hole has a diameter of 1 μm to 100 μm, the liquid portion of the food does not come out even if it is provided at the bottom.
A hole having a diameter of 1 to 5 cm can be provided in the lid. If the hole has a diameter of 1μ to 100μ, the liquid part of the food does not come out and it is almost invisible, so it may be used as it is. Therefore, the surroundings may be bonded with a breathable nonwoven fabric, cooking paper, a non-breathable seal, or the like so as to cover the holes. However, in the case of a non-breathable seal or the like, it is necessary to remove only that portion before heating.
[0008]
In the present invention, a circular, polygonal or star-shaped hole with a diameter of 1 μ to 5 cm and / or an elliptical hole with a short diameter of 1 μ to 5 cm and / or a square, rectangle, triangle or various types having a side length of 1 μ to 5 cm Deformation type holes are provided uniformly or jumbled, and if the hole is 1 cm to 5 cm in diameter, about 1 to 5 holes can be provided in the lid, or 1 mm to 1 cm holes can be provided in the lid in a jumble. it can. Instead of the lid, the entire surface can be covered with a laminate seal having a thickness of 5 to 100 μm provided with appropriate holes.
Adhesive gas-permeable membranes such as cooking paper or non-air-permeable seals are applied to appropriate places where the holes are large and necessary to cover various holes in order to prevent food and liquid from leaking out of the holes. can do.
[0009]
In the present invention, a food package corresponding to microwave and / or steam heating and / or heating with hot water, which is packaged by a packaging method in which a gas permeable membrane or a non-breathable seal or the like is attached as necessary, is made of nylon. Put in a bag made of single-layer, two-layer, or three-layer film of polyester, polyethylene, polypropylene, etc., weld the mouth, seal it completely, and support microwave oven and / or steam heating and / or hot water heating The packaging of the food to be done is complete. The outer bag can be omitted if there is no risk of rubbing, tearing or peeling when an impermeable seal is attached.
[0010]
In the packaging method of the present invention, foods corresponding to any microwave oven and / or steam heating and / or heating with hot water can be packaged, and examples thereof include rice, water-absorbed rice, shomai, and sweet and sour pork.
Next, examples of the present invention will be described.
[0011]
Embodiment 1
Create a two-layer film lid with a PP film and a nylon and polyethylene film attached to the bottom of a film-molded container with an outer diameter of 10 cm x 15 cm and a 2 mm diameter at the center of the lid. Two circular holes were made.
160 g of water-absorbed rice having a water absorption of 65% per serving was placed in the bottom of the above-mentioned container, the above hole was opened, only the periphery of the hole was covered with cooking paper, and the periphery was stuck. We made two kinds of ones, with lids and welded.
[0012]
The obtained package of water-absorbed rice was put in a bag made of a two-layer film of nylon and polyethylene, the mouth was sealed by sealing, and stored refrigerated for one week.
The water-absorbed rice package was taken out of the sealed bag of the obtained water-absorbed rice package, and the rice was heated in a 500 W microwave oven for 3 minutes and 30 seconds.
[0013]
Embodiment 2
The food sample of Example 1 was double-packaged in the same manner as in [0012], stored for 1 week by freezing, then refrigerated and thawed and heated in a 500 W range for 3 minutes and 30 seconds. It became delicious rice.
When the frozen one was directly heated in the 1.4 kW range for 2 minutes, the rice was as delicious as the one that was once refrigerated and thawed.
[0014]
Embodiment 3
Before filling a food container having a side of 150 m / m × 10 m / m and a depth of 20 m / m by pee filler molding, a hole of 4 μm is made on the entire surface at the time of sheeting, and the hole is molded into the above-mentioned size. Put 140g of water-absorbed rice with water absorption of 58% into the inside, weld a film with a 5μ hole on the whole surface like a container on a film laminated with nylon and polyethylene and put it in an air-impermeable nylon laminate bag. And was refrigerated for 1 week. One week later, it was taken out of the refrigerator, further taken out of the air-impermeable nylon laminate bag, boiled in hot water for about 4 minutes and tasted. .
Further, the above-mentioned sample containing 58% of water-absorbed rice filled with water-absorbed rice was stored at -18 ° C for one month after freezing, and then taken out of the nylon laminate bag and heated as it was with hot water for about 8 minutes.
[0015]
【The invention's effect】
In the present invention, a hole of various shapes having a diameter of 1 μm to 5 cm is formed in an appropriate place of a food packaging material corresponding to microwave heating and / or steam heating and / or heating with hot water, so that the airtight sealing bag can be removed from the impermeable sealing bag. Even if the food was taken out and placed in a microwave oven as it was, a package of foods corresponding to a microwave oven and / or steam heating and / or heating with hot water which did not cause explosion could be obtained.

Claims (4)

直径1μ〜5cmの円形、多角形又は星形の孔及び/又は短径1μ〜5cmの楕円形の孔及び/又は一辺の長さ1μ〜5cmの正方形、矩形、三角形又は各種変形型の孔を、電子レンジ及び/又は蒸気加熱及び/又は熱湯による加熱に対応する食品の包装材料の全面もしくは適宜個所に設けてなる電子レンジ及び/又は蒸気加熱及び/又は熱湯による加熱に対応する食品用包装材料。Circular, polygonal or star-shaped holes with a diameter of 1 μ to 5 cm and / or elliptical holes with a short diameter of 1 μ to 5 cm and / or square, rectangular, triangular or various modified holes with a side length of 1 μ to 5 cm. Food packaging material for microwave and / or steam heating and / or hot water provided on the entire surface or at an appropriate place of food packaging material corresponding to microwave and / or steam heating and / or heating with hot water . 請求項1に記載の電子レンジ及び/又は蒸気加熱及び/又は熱湯による加熱に対応する食品用包装材料、そのままもしくは適宜個所に調理紙等の通気性膜を貼着した材料を用いて、電子レンジ及び/又は蒸気加熱及び/又は熱湯による加熱に対応する食品を包装し、これを不通気性包材で密封することを特徴とする電子レンジ及び/又は蒸気加熱及び/又は熱湯による加熱に対応する食品の包装方法。A microwave oven using the microwave oven according to claim 1 and / or a food packaging material corresponding to steam heating and / or heating with hot water, or a material in which a breathable film such as cooking paper is adhered as it is or at an appropriate place. Microwave and / or steam heating and / or hot water heating, characterized in that foodstuffs corresponding to steam heating and / or heating with hot water are wrapped and sealed with an impermeable packaging material Food packaging method. 請求項1に記載の電子レンジ及び/又は蒸気加熱及び/又は熱湯による加熱に対応する食品用包装材料、そのままもしくは適宜個所に調理紙等の通気性膜を貼着した材料又は電子レンジ及び/又は蒸気加熱及び/又は熱湯による加熱に対応する食品の包装物の適宜個所に通気性を持たない膜又はシールを貼着した材料を用いて、電子レンジ及び/又は蒸気加熱及び/又は熱湯による加熱に対応する食品を包装し、これを不通気性包材で密封することを特徴とする電子レンジ及び/又は蒸気加熱及び/又は熱湯による加熱に対応する食品の包装方法。Food packaging material corresponding to the microwave oven and / or steam heating and / or heating with hot water according to claim 1, a material in which a breathable film such as cooking paper is stuck as it is or at an appropriate place, or a microwave oven and / or A microwave oven and / or steam heating and / or heating with hot water using a material having a non-breathable membrane or seal attached to a suitable place on a food package corresponding to steam heating and / or heating with hot water A food packaging method corresponding to microwave and / or steam heating and / or heating with hot water, characterized in that the corresponding food is packaged and sealed with an impermeable packaging material. 請求項3において電子レンジ及び/又は蒸気加熱及び/又は熱湯による加熱に対応する食品の包装物に通気性を持たない膜又はシールを貼着した材料を用いた場合は、電子レンジ及び/又は蒸気加熱及び/又は熱湯による加熱を行なう前に適宜個所に貼った通気性を持たない膜又はシールのみをはがしたのち加熱処理することを特徴とする電子レンジ及び/又は蒸気加熱及び/又は熱湯による加熱に対応する包装食品の加熱処理方法。4. A microwave oven and / or steam when a material having a non-permeable membrane or a sticker attached to a food package corresponding to microwave oven and / or steam heating and / or heating with hot water is used in claim 3. Before heating and / or heating with hot water, a microwave oven and / or steam heating and / or hot water are characterized in that only a non-permeable membrane or seal attached to an appropriate place is peeled off and then heated. Heat treatment method for packaged foods corresponding to heating.
JP2002169076A 2002-06-10 2002-06-10 Food packaging material used under heating and packaging method Pending JP2004010156A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017081599A (en) * 2015-10-28 2017-05-18 アテナ工業株式会社 Container for food to be heated by microwave oven
JP2017165485A (en) * 2016-03-14 2017-09-21 アテナ工業株式会社 Container for food to be heated by microwave oven
JP2020172273A (en) * 2019-04-09 2020-10-22 株式会社エフピコ Container for food packaging

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017081599A (en) * 2015-10-28 2017-05-18 アテナ工業株式会社 Container for food to be heated by microwave oven
JP2017165485A (en) * 2016-03-14 2017-09-21 アテナ工業株式会社 Container for food to be heated by microwave oven
JP2020172273A (en) * 2019-04-09 2020-10-22 株式会社エフピコ Container for food packaging

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