JP3840120B2

JP3840120B2 - Packaged food

Info

Publication number: JP3840120B2
Application number: JP2002034330A
Authority: JP
Inventors: 隆栗橋; 行生坂本
Original assignee: 株式会社にんべん
Priority date: 1996-12-04
Filing date: 2002-02-12
Publication date: 2006-11-01
Anticipated expiration: 2017-04-16
Also published as: JP2002308342A

Description

【０００１】
【発明の属する技術分野】
本発明の包装食品は長期保存可能なるように二重に、しかも気密に包装した包装食品であり、乾燥食品、特に風味を有する食品、例えば、削り節類、煮干し類、だしの素等の風味調味料、ふりかけ類、海苔等の海草類、緑茶等のお茶類、ハーブ等の香草類、スルメなどの珍味類、クルミ、ピーナッツ等のナッツ類、ポテトチップス等の菓子、パン類等の品質を長期保存するのに利用可能なものである。
【０００２】
【従来の技術】
一般に食品は、大気中の酸素により酸化されて品質が劣化し、また、好気性菌は酸素の下で繁殖する。このため、食品を包装する際にはできるだけ包装容器内の空気（酸素）を除去することが望ましい。そこで従来より、包装内の空気をできるだけ除去する包装方法が実用化されており、その主な包装方法としては、真空包装、ガス置換充填包装、包装容器内に脱酸素剤を入れた包装等がある。
【０００３】
海苔の場合は、裸あるいはセロファン等で包まれた海苔を、乾燥剤と共に蓋付の缶に密封又は封入したものがある。削り節の場合は、ガスバリア性をあるプラスチック製の気密袋内にガス置換充填包装したものがある。最近は削り節を、ＥＶＯＨフィルム等を使用した多層（積層）のプラスッチフィルム製のガスバリア性のある袋（ＪＡＳ規格で酸素透過度が温度２０℃、乾燥状態において１ｍｌ／ｍ²・２４ｈ以下）内に窒素ガス充填と共に密封したものが多く出回っている。また、実開昭５６−６５８６９号に開示されているように、ガスバリア性のない内容器に食品を封入し、これを複数個まとめて脱酸素剤と共にガスバリア性のある外容器に封入したもの（二重包装したもの）もある。
【０００４】
【発明が解決しようとする課題】
前記した従来の包装食品には以下のような課題がある。
▲１▼．真空包装では中身が潰れてしまい体裁が悪い。また、空気を十分に除去できないため、乾燥食品、特に風味を有する食品、例えば、削り節類、煮干し類、だしの素等の風味調味料、ふりかけ類、海苔等の海草類、緑茶等のお茶類、ハーブ等の香草類、スルメなどの珍味類、クルミ、ピーナッツ等のナッツ類、ポテトチップス等の菓子、パン類等の、特に風味を有し、僅かな酸素によっても著しく酸化して風味が損なわれる食品の包装には適さない。
▲２▼．ガスバリア性のある容器であっても、長期的には、完全に酸素の侵入を防ぐことはできないため、一重に包装しただけでは、僅かではあるが酸素が侵入し、その僅かな酸素によって、削り節類、煮干し類をはじめとする前記の風味を有する食品は著しく酸化し、風味が損なわれたり、褪色したり変色したりする。このため長期保存にも限度があり、せいぜい１年程度であった。
▲３▼．通常の包装食品は、一つの容器内に一回の使用量を超える量の食品が封入されていることが多いため、開封しても使い切れずに残った食品は酸化して風味が損なわれたり、褪色したり変色したりする。
▲４▼．容器が缶とか、瓶の場合は保形性（外圧が多少加わっても変形しない）があるが、保形性のない容器の場合は外圧を受けると容器が変形したり、容器内の食品が型崩れしたり、潰れたりする。
▲５▼．単なる脱酸素剤を使用した場合は、通常は酸素を吸収するだけであるため、脱酸素剤が吸収した酸素の分だけ容器内の体積が減少し、容器が部分的にへこむことがあり、体裁が悪い。
▲６▼．通常のガス置換包装食品は、褪色或は変色してからでないと酸素の侵入に気が付きにくく、気の付いたときには品質劣化の防止には手遅れである。
▲７▼．単に二重包装したものは、販売の便宜上、或は体裁上、内容器を複数個まとめて外容器に包装したにすぎず、二重包装することにより格別に気密性を高める工夫や配慮がなされていないため、二重包装しても保存期間が格別長くなるわけではなかった。
【０００５】
【課題を解決するための手段】
本発明のうち請求項１記載の包装食品は、削り節類、煮干し類、風味調味料、ふりかけ類、海草類、お茶類、香草類、珍味類、ナッツ類、菓子、パン類等の風味を有する食品をガスバリア性のある内容器２内にガス置換充填包装して密封し、この内容器２をガスバリア性のあるフィルム製又は紙とガスバリア性のあるフィルムとの積層シート製の外容器３内にガス置換充填包装して密封したものである。
【０００６】
本発明のうち請求項２記載の包装食品は、削り節類、煮干し類、風味調味料、ふりかけ類、海草類、お茶類、香草類、珍味類、ナッツ類、菓子、パン類等の風味を有する食品をガスバリア性があり且つ脱酸素剤４を備えた内容器２内に収容密封し、この内容器２をガスバリア性のあるフィルム製又は紙とガスバリア性のあるフィルムとの積層シート製の外容器３内にガス置換充填包装して密封したものである。
【０００７】
本発明のうち請求項３記載の包装食品は、削り節類、煮干し類、風味調味料、ふりかけ類、海草類、お茶類、香草類、珍味類、ナッツ類、菓子、パン類等の風味を有する食品をガスバリア性のある内容器２内にガス置換充填包装して密封し、この内容器２をガスバリア性のあるフィルム製又は紙とガスバリア性のあるフィルムとの積層シート製であり且つ脱酸素剤４を備えた外容器３内に収容密封したものである。
【０００８】
本発明のうち請求項４記載の包装食品は、削り節類、煮干し類、風味調味料、ふりかけ類、海草類、お茶類、香草類、珍味類、ナッツ類、菓子、パン類等の風味を有する食品をガスバリア性があり且つ脱酸素剤４を備えた内容器２内に収容密封し、この内容器２がガスバリア性のあるフィルム製又は紙とガスバリア性のあるフィルムとの積層シート製であり且つ脱酸素剤４を備えた外容器３内に収容密封したものである。
【０００９】
本発明のうち請求項５記載の包装食品は、削り節類、煮干し類、風味調味料、ふりかけ類、海草類、お茶類、香草類、珍味類、ナッツ類、菓子、パン類等の風味を有する食品をガスバリア性があり且つ脱酸素剤４を備えた内容器２に収容してガス置換充填包装し、この内容器２をガスバリア性のあるフィルム製又は紙とガスバリア性のあるフィルムとの積層シート製であり且つ脱酸素剤４を備えた外容器３内に収容密封するか、又はガスバリア性のあるフィルム製の外容器３内に収容してガス置換充填包装したものである。
【００１０】
本発明のうち請求項６記載の包装食品は、削り節類、煮干し類、風味調味料、ふりかけ類、海草類、お茶類、香草類、珍味類、ナッツ類、菓子、パン類等の風味を有する食品をガスバリア性があり且つ脱酸素剤４を備えた内容器２に収容密封するか、又はガスバリア性のある内容器２に収容してガス置換充填包装し、この内容器２をガスバリア性のあるフィルム製又は紙とガスバリア性のあるフィルムとの積層シート製であり且つ脱酸素剤４を備えた外容器３内に収容してガス置換充填包装したものである。
【００１１】
本発明のうち請求項７記載の包装食品は、削り節類、煮干し類、風味調味料、ふりかけ類、海草類、お茶類、香草類、珍味類、ナッツ類、菓子、パン類等の風味を有する食品をガスバリア性があり且つ脱酸素剤４を備えた内容器２に収容してガス置換充填包装し、この内容器２をガスバリア性のあるフィルム製又は紙とガスバリア性のあるフィルムとの積層シート製であり且つ脱酸素剤４を備えた外容器３内に収容してガス置換充填包装したものである。
【００１２】
本発明のうち請求項８記載の包装食品は、削り節類、煮干し類、風味調味料、ふりかけ類、海草類、お茶類、香草類、珍味類、ナッツ類、菓子、パン類等の風味を有する食品をガスバリア性のある内容器２内にガス置換充填包装して密封し、この内容器２を液体バリア性のあるフィルム製の外容器３内に収容密封したものである。
【００１３】
本発明のうち請求項９記載の包装食品は、削り節類、煮干し類、風味調味料、ふりかけ類、海草類、お茶類、香草類、珍味類、ナッツ類、菓子、パン類等の風味を有する食品をガスバリア性のある且つ脱酸素剤４を備えた内容器２内に収容密封し、この内容器２を液体バリア性のあるフィルム製の外容器３内に収容密封したものである。
【００１４】
本発明のうち請求項１０記載の包装食品は、削り節類、煮干し類、風味調味料、ふりかけ類、海草類、お茶類、香草類、珍味類、ナッツ類、菓子、パン類等の風味を有する食品をガスバリア性があり且つ脱酸素剤４を備えた内容器２内に収容してガス置換充填包装し、この内容器２を液体バリア性のあるフィルム製の外容器３内に収容密封したものである。
【００１５】
本発明のうち請求項１１記載の包装食品は、請求項８乃至請求項１０のいずれかに記載の包装食品において、外容器３をガスバリア性をも有するものである。
【００１６】
本発明のうち請求項１２記載の包装食品は、請求項８乃至請求項１０のいずれかに記載の包装食品において、外容器３が、ガスバリア性をも有し且つ脱酸素剤４を備えたものである。
【００１７】
本発明のうち請求項１３記載の包装食品は、請求項１１又は請求項１２記載の包装食品において、外容器３内がガス置換充填包装されて密封されたものである。
【００１８】
本発明のうち請求項１４記載の包装食品は、請求項１乃至請求項１３のいずれかに記載の包装食品において、外容器３と内容器２の双方又はいずれか一方に酸素により変色する酸素検知剤５が封入されたものである。
【００１９】
本発明のうち請求項１５記載の包装食品は、請求項１乃至請求項１４のいずれかに記載の包装食品において、外容器３と内容器２の双方又は一方の全部或は一部が、内部を透視可能なものである。
【００２０】
本発明のうち請求項１６記載の包装食品は、請求項１乃至請求項１５のいずれかに記載の包装食品において、食品が包装された内容器２が複数個、外容器３内に密封されたものである。
【００２１】
本発明のうち請求項１７記載の包装食品は、請求項１乃至請求項１６のいずれかに記載の包装食品において、食品は内容器２内に一回の使用量が密封されたものである。
【００２２】
本発明のうち請求項１８記載の包装食品は、請求項１乃至請求項１７のいずれかに記載の包装食品において、外容器３が、内容器２よりも長期間ガスバリア性のあるものである。
【００２３】
本発明のうち請求項１９記載の包装食品は、請求項１乃至請求項１８のいずれかに記載の包装食品において、外容器３が内容器出し入れ口７を有し、外容器３及び内容器出し入れ口７が内容器２よりも長期間ガスバリア性のあるものである。
【００２４】
本発明のうち請求項２０記載の包装食品は、請求項１乃至請求項１９のいずれかに記載の包装食品において、外容器３の内容器出し入れ口７がガスバリア性又は液体バリア性又はその両方を備えたものである。
【００２５】
本発明のうち請求項２１記載の包装食品は、請求項１乃至請求項２０のいずれかに記載の包装食品において、外容器３の内容器出し入れ口７に封止機構１１を設けたものである。
【００２６】
【００２７】
【００２８】
【００２９】
【００３０】
本発明のうち請求項２２記載の包装食品は、請求項１乃至請求項２１のいずれかに記載の包装食品において、置換されるガスを、窒素ガス等の不活性ガス、或は、炭酸ガス又はこれらの混合ガスとしたものである。
【００３１】
本発明のうち請求項２３記載の包装食品は、請求項１乃至請求項２２のいずれかに記載の包装食品において、脱酸素剤４が、酸素を吸収すると炭酸ガスを発生する炭酸ガス発生型のものと、酸素を吸収しても炭酸ガスを発生しない炭酸ガス非発生型のものとの双方又はいずれか一方としたものである。
【００３２】
本発明の請求項２４記載の包装食品は、請求項１乃至請求項２３のいずれかに記載の包装食品において、外容器３が保形性を有するものである。
【００３３】
本発明の請求項２５記載の包装食品は、請求項１乃至請求項２４のいずれかに記載の包装食品において、外容器３に脱酸素剤４が塗布され、又は、外容器３が脱酸素剤４を有する材料で形成され、又は外容器３脱酸素剤４が混入されているフィルムやシートで成型されたものである。
【００３５】
本発明の請求項２６記載の包装食品は、請求項１乃至請求項２５のいずれかに記載の包装食品において、脱酸素剤４が外容器３の全面に又は一部分に設けられたものである。
【００３６】
本発明の請求項２７記載の包装食品は、請求項１乃至請求項２６のいずれかに記載の包装食品において、外容器３と別体に包装された脱酸素剤４が、外容器３内に収容されたものである。
【００６０】
【発明の実施の形態１】
本発明の包装食品の第１の実施の形態を図１に基づいて説明する。この実施の形態における食品は削り節である。この実施の形態では、合成樹脂製でガスバリア性を有するフィルム製の内容器２内に食品を収容してガス置換充填包装し、その内容器２をガスバリア性を有するフィルム製の外容器３内に複数個収容してガス置換してある。ここで、ガスバリア性のあるフィルムとは、一般的には、温度２０℃、乾燥状態において、酸素透過度が７〜８ｍｌ／ｍ²・２４ｈ以下をいう。
【００６１】
内容器２内への食品の包装量は一回の使用に適する量（３〜５ｇ程度）を収容し、その内容器２内を一旦真空にしてから窒素ガスを充填するか、窒素ガスを噴出させながら空気を追い出して入れかえて（置換して）窒素ガスを充填するか、方法に難はあるが液体窒素を添加して空気を追い出してガス置換するか、のいずれかの方法によりガス置換充填して、同内容器２内の酸素の残量を内容器２中の気体の５％以下（好ましくは０．５％以下）にし、その状態で開口部を密封（ガス置換充填包装）してある。
【００６２】
外容器３は、食品を包装した前記の内容器２を収容した後に、内部にガス置換して気密に封止してガス置換充填包装してある。この場合、内容器２の場合と同様に酸素の残量を外容器３内の気体の５％以下（好ましくは０．５％以下）にしてある。また、外容器３をガス置換充填包装する場合、内容器２がガス置換充填包装されているため、外容器３内を真空にすると内容器２が破裂し易い。このため、図１の外容器３内に内容器２をガス置換充填包装する場合は、外容器３内に窒素ガスを噴出させながら外容器３内の空気を追い出して、窒素ガスと置換し、その状態で包装するのが好ましい。
【００６３】
図１の外容器３は内容器２と同じくガスバリア性のあるフィルムにより横長立方体状の袋状に成形されており、この外容器３内の長手方向中央には、収容された内容器２の位置ずれを防止するための仕切り板９が配置されている。この仕切り板９は厚紙とかプラスック等により成形されており、同仕切り板９の両側に同数の内容器２が収容されている。
【００６４】
内容器２、外容器３の材料であるガスバリア性を有するフィルムとしては、例えば、エチレンビニルアルコール共重合体（ＥＶＯＨフィルム）、ポリ塩化ビニリデン（ＰＶＤＣ）フィルム、ＰＶＤＣコートセロハン、ＰＶＤＣコート二軸延伸ペット等のガスバリア性フィルムを、他のフィルム（例えばＯＰＰやＰＥ等）と積層構造にして使用してある。この積層構造フィルムの具体例としては、例えば、ＯＰＰ／ＥＶＯＨ／ＰＥがある。この他にアルミ蒸着フィルムやアルミ箔等の金属フィルム又はシートを同様に他のフィルム（例えば、ＯＰＰやＰＥ等）と積層したものでもよい。
【００６５】
内容器２及び外容器３は透明なフィルムで成形して、それらの内部の食品が外から見えるようにしてある。
【００６６】
内容器２及び外容器３のガス置換に使用するガスには、窒素ガス等の不活性ガス、又は炭酸ガス、又はこれらの混合ガスを用いることができる。不活性ガス及び炭酸ガスは、食品の品質劣化を抑制して食品を長期保存するのに適する。さらに炭酸ガスは制菌作用がある。
【００６７】
内容器２と外容器３内の双方又はいずれか一方には、それらの内部の酸素を吸収して包装されている食品の酸化を防止するための脱酸素剤４が収容されている。脱酸素剤４はそれら容器の容積に応じて１個乃至複数個入れてある。この脱酸素剤４は酸素を吸収した分だけ炭酸ガスを発生する炭酸ガス発生型のものでも、炭酸ガスを発生しない炭酸ガス非発生型のものでもよい。炭酸ガス発生型の脱酸素剤４を使用すると、内容器２又は外容器３内の脱酸素剤４が酸素を吸収しても、その分だけ炭酸ガスが発生するので、酸素が吸収された分だけ内容器２又は外容器３が内側にへこむことがなく、それら容器が変形せず体裁がよい。特に、酸素吸収量以上に炭酸ガスを発生することができれば、内容器２又は外容器３が外側に膨らむ。この膨らみは、内部の残存酸素が脱酸素剤４に吸収されていることを意味することになるため、膨らみの有無を確認するだけでガスバリア性が保持されているかどうかを確認でき、品質管理に便利である。また、外に膨らんだ状態が継続されていれば、内容器２又は外容器３内に外部から空気が侵入しにくくなり、品質維持に都合がよい。
【００６８】
【発明の実施の形態２】
本発明の包装食品の第２の実施の形態を図２に基づいて詳細に説明する。図２に示す内容器２は図１に示す内容器と同一構造、形状である。図２の外容器３は長方形の２枚のアルミシート１０を積層したフィルム（例えばＯＮ／ＡＬ／ＣＰＰなど）、或はアルミ蒸着フィルム（例えば、ＶＭ−ＰＥＴ／ＣＰＰなど）の周縁の一辺を内容器出し入れ口７とし、その出し入れ口７の内側に開閉可能なジッパー等の封止機構１１を設けてある。この外容器３に内容器２を密封するには、封止機構１１の外側（仮想線部分Ａ）と、左右の二辺の仮想線部分Ｂ、Ｃを接着剤或は溶着により密閉し、他の一片Ｄは開口したままにしておき、開口されている一片（底の部分）Ｄより食品が収容されている内容器２を複数個収容し、その後にガス置換してその一片Ｄを密封し、ガス置換充填包装する。この場合も、内容器２と外容器３の双方またはいずれか一方に炭酸ガス発生型或は炭酸ガス非発生型の脱酸素剤４を入れることができる。また、ガスには窒素ガス等の不活性ガスとか炭酸ガス、或はそれらの混合ガスを使用することができる。
【００６９】
また、外容器３の内部には酸素検知剤５も収容されている。酸素検知剤５は釦型に成形されており、シール密封不良や外容器３にピンホ−ル等の包材不良あるいは、ガス置換不良、脱酸素剤不良などの異常時に、酸素を検知すると変色して、外容器３内に酸素が存在することを知らせることができ、食品の品質管理に役立つ。もちろん内容器２に直接酸素検知剤５を入れておいてもよい。
【００７０】
外容器３の一部には透明な透視窓１３を設けて、内部を外から透視できるようにしてある。この透視窓１３はアルミ蒸着フィルムの場合、パスター加工を施して容易に開設可能である。従って、この透視窓１３より酸素検知剤５を見えるように配置しておけば、内容器２内の食品のガスバリア性が保たれているかを見極めることができる。
【００７１】
【００７２】
【００７３】
【００７４】
【発明の他の実施の形態】
外容器は紙とガスバリア性のあるフィルムとの積層シート等であってもよい。これらのものは一般的に液体バリア性も優れているので本発明には都合が良い。
【００７５】
脱酸素剤４や酸素検知剤５は外容器３内だけではなく、内容器２内にも入れることができる。この場合、それらを内容器２と外容器３の夫々に単独で入れてもよいが、両方を一緒に入れることもできる。また、内容器２と外容器３の夫々にそれらを入れると共に不活性ガス、又は炭酸ガス、又はこれらの混合ガスを置換して密封包装することもできる。内容器２及び外容器３の外周縁の一部には図１に示すように、開封用の切り口１９を入れておくと開封が容易になる。
【００７６】
以上の説明は、内容器２又は外容器３と別体に包装されている脱酸素剤４を、それら、内容器２又は外容器３に収容したものであるが、脱酸素剤４は内容器２又は外容器３と別体包装されているのではなく、内容器２の内面と外面の双方又はいずれか一方に直接設けたり、外容器３の内面に直接設けたりすることもできる。内容器２の内面や外面、或は、外容器３の内面に直接設ける場合は、夫々の面に脱酸素剤４を塗布したり、脱酸素剤４を有する材料で形成されたもの、即ち脱酸素剤４が混入されているフィルムやシートを夫々の面に貼合わせて積層構造としたり、脱酸素剤４が混入されているフィルムやシートで内容器２や外容器３を成型するようにすることもできる。脱酸素剤４が混入されているフィルムやシートとしては、例えば、ガスバリア性の無い樹脂に還元性物質を主剤とする脱酸素剤４を配合して形成してなるフィルム又はシート層と、ガスバリア性を有するフィルム又はシート層とを積層構造にしたものがある。いずれの場合も内容器２、外容器３はガスバリア性を有するものとする。もちろん脱酸素剤４を設ける場合は内容器２、外容器３を問わずそれらの全面あるいは一部分であってもよい。例えば袋状の容器の場合、片面のみ脱酸素剤４が混入されたフィルムを内面に積層する等して脱酸素剤４が設けられてもよい。これらの場合は、脱酸素剤４が内容器２と一体化されているので、内容器２と別体の脱酸素剤４を収容する場合よりも包装に手間がかからない。また内容器２内に脱酸素剤４が占めるスペースが不要になり、包装が小型にもなる。
【００７７】
【００７８】
本発明では内容器２と外容器３の双方または一方にそれらとは別体包装の脱酸素剤４を収容する場合でも、内容器２と外容器３の双方または一方に脱酸素剤４を設けるとか、それら容器に脱酸素剤４を有する材料で成型したものを使用することもできる。本発明においては、外容器３を液体バリア性のあるものにすることができる。また、外容器３を液体バリア性だけでなく、ガスバリア性をも合わせもったものとすることもでき、ガスバリア性をも有する場合は、更に、脱酸素剤４を備えたものとすることもできる。
【００７９】
【発明の効果】
本発明のうち請求項１の包装食品は、食品がガスバリア性のある内容器２とガスバリア性のある外容器３とにより二重に包装され、しかも、内容器２と外容器３の夫々が二重にガス置換充填包装されているので次の様な効果がある。
▲１▼．内容器２内への酸素の侵入を二重に防止でき、その侵入を長期間防止できるため、同内容器２内の食品の風味、品質を長期間保持可能であると共に褪色、変色をも長期間防止できる。例えば通常の削り節パック品で賞味期限（品質保持期限）が１年のところ本発明では１年半から２年以上とすることもできる。
▲２▼．外容器３もガスバリア性があるため、そのガスバリア性が長期間確保できれば、内容器２のガスバリア性は多少、短期間しか保持できないものであっても、内容器２の食品の品質は確保されるため、内容器２の包装材には安価なものを使用することも可能となり、従来のような単なる二重包装に比べて包装容器代が格別高くなることもない。むしろ、内容器２が数が多い場合は安価な包装材を使用でき、ガスバリア性に優れて高価である包装材は、数の少ない外容器３にのみ使用すればよいため、トータル的には包装材の経費を安くすることができる。このため、食品を安価に提供できることとなり、消費者にとっても経済的効果が大である。
▲３▼．また、従来の一重包装の場合は、短期間だけ品質保持できれば良いものの場合でも、出荷から消費者に消費されるまでの期間が不確定であるため、少なくとも、消費されるまでの長期間を見越して、個々の内容器２にガスバリア性に優れた高価な包装材を使用しなければならなかったが、本発明では短期間に使用する食品の場合は、外容器３を開封しない限りは、内容器２内の食品の品質が確保されるため、個々の内容器２には長期間ガスバリア性を保持できない包装材を使用することもできる。例えば、複数個少量使用量の内容器２が外容器３に収納されたものが消費者の手に届いてから外容器３が開封され、消費されるまで１ヶ月間で消費可能な商品であれば内容器２は１ヶ月間だけ品質を保持できるガスバリア性を有する包装材が使用可能となる。このためコストが安価になり、消費者にとっても経済的である。
【００８０】
本発明のうち請求項２記載の包装食品は、ガスバリア性のある内容器２に脱酸素剤４を設けて密封し、同内容器２をガスバリア性がある外容器３内にガス置換充填包装して密封したので、外容器３内の残存酸素が殆ど無く、外容器３内の酸素が内容器２に侵入することは殆どない。また、例え、外容器３内に残っている僅かの酸素が内容器２に侵入しても、その酸素は内容器２の脱酸素剤４で吸収されるため、内容器２の食品の風味や品質を長期間保持可能であると共に褪色、変色をも長期間防止できる。更に、内容器２、外容器３の気密性が多少損なわれても内容器２内の脱酸素剤４が効いている間は食品の品質が保持されていることになる。
【００８１】
本発明のうち請求項３記載の包装食品は、食品がガスバリア性のある内容器２内にガス置換充填包装され、この内容器２がガスバリア性のある外容器３内に脱酸素剤４と共に密封されているので、外容器３内に僅かの酸素が残っていても、その残存酸素は脱酸素剤４で吸収され、内容器２内に酸素が侵入しにくくなるため、内容器２の食品の風味や品質を長期間保持可能であると共に褪色、変色をも長期間防止できる。また、内容器２、外容器３の気密性が多少損なわれても、外容器３内の脱酸素剤４が効いている間は食品の品質が保持されていることになる。
【００８２】
本発明のうち請求項４記載の包装食品は、食品がガスバリア性のある内容器２内に脱酸素剤４と共に密封され、この内容器２がガスバリア性のある外容器３内に脱酸素剤４と共に密封されているので、内容器２内の残存酸素は内容器２内の脱酸素剤４により、外容器３内の残存酸素は外容器３内の脱酸素剤４により、夫々吸収され、脱酸素剤４を入れない場合に比べて更に長期間に渡って内容器２内の食品の風味や品質が保持されると共に褪色、変色も長期間防止される。また、内容器２、外容器３の気密性が多少損なわれても内容器２内、外容器３内の夫々の脱酸素剤４の効能がある間は食品の品質が保持されることになる。
【００８３】
本発明のうち請求項５記載の包装食品は、食品がガスバリア性があり且つ脱酸素剤を備えた内容器２に収容してガス置換充填包装し、この内容器２をガスバリア性があり且つ脱酸素剤４を備えた外容器３内に収容密封するか、又はガスバリア性のある外容器３内に収容してガス置換充填包装したので、外容器３を前者のようにした場合は、内容器２内の残存酸素は内容器２内の脱酸素剤４により、外容器３内の残存酸素は外容器３内の脱酸素剤４により夫々吸収されるので、脱酸素剤４を入れない場合に比べて更に長期間に渡って内容器２内の食品の風味や品質を保持可能であると共に褪色、変色をも長期間防止できる。また、内容器２、外容器３の気密性が多少損なわれても内容器２内、外容器３内の双方又は一方の脱酸素剤４の効能がある間は食品の品質が保持されていることになる。外容器３を後者のようにした場合は、外容器３内に酸素が残存しないので内容器２内に外部から酸素が侵入することがない。
【００８４】
本発明のうち請求項６記載の包装食品は、食品がガスバリア性があり且つ脱酸素剤４を備えた内容器２に収容密封されるか、又はガスバリア性がある内容器２に収容してガス置換充填包装され、この内容器２がガスバリア性があり且つ脱酸素剤４を備えた外容器３内に収容されてガス置換充填包装されているので、外容器３内には殆ど酸素が残らず、外容器３から内容器２内に酸素が侵入しない。また、内容器２内にも酸素が残らず、仮に外容器３から酸素が侵入したとしても、その酸素は内容器２内の脱酸素剤４で吸収されるので、内容器２の食品の風味や品質を長期間保持可能であると共に褪色、変色をも長期間防止できる。また、内容器２、外容器３の気密性が多少損なわれても内容器２内の脱酸素剤４が効いている間は食品の品質が保持されていることになる。
【００８５】
本発明のうち請求項７記載の包装食品は、食品がガスバリア性があり且つ脱酸素剤４を備えた内容器２に収容されてガス置換充填包装され、この内容器２がガスバリア性のあり且つ脱酸素剤４を備えた外容器３内に収容されてガス置換充填包装されているので、内容器２内に僅かの酸素が残っていても、外容器３内に僅かの酸素が残っていても、それらの残存酸素は脱酸素剤４で吸収される。このため外容器３から内容器２内に酸素が侵入することがなく、内容器２の食品の風味や品質を長期間保持可能であると共に褪色、変色をも長期間防止できる。また、たとえ内容器２、外容器３の気密性が多少損なわれても外容器３内の脱酸素剤４が効いている間は食品の品質が保持されていることになる。
【００８６】
本発明のうち請求項８記載の包装食品は、食品がガスバリア性のある内容器２内にガス置換充填包装され、この内容器２が液体バリア性のある外容器３内に収容密封されているので、外容器３内外への水とか湿気の侵入及び散逸を防止でき、内容器２だけでは防ぎきれない食品の品質が水や湿気によって劣化するのを防ぐことができ、従来の一重容器に比して長期間の品質保持が可能である。また、内容器２だけでは食品を好ましい水分に保存することが不十分なことがあり、特に内容器２が樹脂フィルムの場合はその傾向があるため、長期間の間には食品の乾燥や吸湿が起きることもあるが、外容器３によって食品の乾燥や吸湿が防止され、食品の品質維持がより一層向上する。また、食品が内容器２内にガス置換充填包装されているので、内容器２内の残存酸素が殆ど無く、内容器２内の食品の酸化、品質劣化も防止される。
【００８７】
本発明のうち請求項９記載の包装食品は、食品がガスバリア性があり且つ脱酸素剤４を備えた内容器２内に収容密封され、この内容器２が液体バリア性のある外容器３内に収容密封されたので、外容器３の液体バリア性により外容器３内外への水とか湿気の侵入及び散逸が防止され、内容器２だけでは防ぎきれない食品の品質が水や湿気によって劣化するのを防ぐことができる。また、内容器２だけでは食品を好ましい水分に保存することが不十分なことがあり、特に内容器２が樹脂フィルムの場合はその傾向があるため、長期間の間には食品の乾燥や吸湿が起きることもあるが、外容器３によって食品の乾燥や吸湿が防止され、食品の品質維持がより一層向上する。また、内容器２が脱酸素剤４を備えているので、内容器２内の残存酸素がそれに吸収され、内容器２の食品の酸化、品質劣化も防止される。
【００８８】
本発明のうち請求項１０記載の包装食品は、食品がガスバリア性があり且つ脱酸素剤４を備えた内容器２内に収容されてガス置換充填包装され、この内容器２が液体バリア性のある外容器３内に収容密封されたので、外容器３の液体バリア性により外容器３内外への水とか湿気の侵入及び散逸を防止でき、内容器２だけでは防ぎきれない食品の品質が水や湿気によって劣化するのを防ぐことができる。また、内容器２だけでは食品を好ましい水分に保存することが不十分なことがあり、特に内容器２が樹脂フィルムの場合はその傾向があるため、長期間の間には食品の乾燥や吸湿が起きることもあるが、外容器３によって食品の乾燥や吸湿が防止され、食品の品質維持がより一層向上する。また、食品が内容器２内にガス置換充填包装されているので、内容器２内の残存酸素が殆ど無く、内容器２内の食品の酸化、品質劣化も防止される。更に、内容器２が脱酸素剤４を備えているので、内容器２内に残存酸素があってもその酸素は脱酸素剤４に吸収され、内容器２の食品の酸化、品質劣化も防止される。
【００８９】
本発明のうち請求項１１記載の包装食品は、請求項８乃至請求項１０のいずれかに記載の包装食品において、外容器３をガスバリア性をも有するものとしたので、請求項８乃至請求項１０の夫々の包装食品の効果の他に、外容器３のガスバリア性により外部から外容器３内に酸素が侵入しにくくなり、外容器内外の湿気や水分により内容器２内の食品の品質が劣化することがなく、長期間の品質保持が可能である。
【００９０】
本発明のうち請求項１２記載の包装食品は、請求項８乃至請求項１０のいずれかに記載の包装食品において、外容器３を、ガスバリア性をも有し且つ脱酸素剤４を備えたものとしたので、請求項８乃至請求項１０の夫々の包装食品の効果の他に、外容器３のガスバリア性により外部から外容器３内に酸素が侵入しにくくなり、外容器３が備えた脱酸素剤４により、外容器３内に侵入した酸素が吸収されるので、内容器２内の食品の品質が保持されるという効果もある。
【００９１】
本発明のうち請求項１３記載の包装食品は、請求項１１又は請求項１２記載の包装食品において、外容器３内をガス置換充填包装して密封したので、請求項１１又は請求項１２の夫々の包装食品の効果の他に、外容器３をガス置換充填包装して密封したことにより、外容器３内の残存酸素が殆ど無く、内容器２内の食品の品質がより良く保持されるという効果もある。
【００９２】
本発明のうち請求項１４記載の包装食品は、請求項１乃至請求項１３のいずれかに記載の包装食品において、外容器３と内容器２の双方又はいずれか一方に酸素により変色する酸素検知剤５を封入したので、酸素検知剤５を外から透視できるようにすれば容易且つ確実に外容器３及び内容器２内への酸素の侵入の有無を確認でき、内容器２内の食品の品質管理が非常にし易くなる。ちなみに、酸素の侵入は目視によっては判断できないため、食品が褪色或は変色してからでないと酸素の侵入に気が付きにくく、気の付いたときには品質劣化の防止には手遅れであるが、本願発明ではそのようなことはない。
【００９３】
本発明のうち請求項１５記載の包装食品は、請求項１乃至請求項１４のいずれかに記載の包装食品は、外容器３と内容器２の双方又は一方の全部或は一部を、内部を透視可能なものとしたので、外容器３を開封しなくとも、前者の場合は内容器２内の食品を外容器３の外部から確認することができ、食品の品質管理がし易くなる。また、後者の場合は外容器３を開封しなくとも内容器２内の食品を内容器２の外から、外容器３内の様子を外容器２の外から、夫々確認することができるので、品質管理がし易くなる。また、包装食品は包装されている内部の食品が外から見えないと不安であるが、そのような不安も解消される。
【００９４】
本発明のうち請求項１６記載の包装食品は、請求項１乃至請求項１５のいずれかに記載の包装食品において、食品が包装された内容器２を複数個、外容器３内に密封してなるので、内容器２の数に対して外容器３の数が少なくなり、運搬、在庫管理、販売時等の取扱いや管理がし易くなる。また、外容器３もガスバリア性があるため、内容器２のガスバリア性は多少、短期間しか保持できないものであっても、内容器２の食品の品質は確保される。このため、内容器２の包装材には安価なものを使用することも可能となり、二重包装しても包装容器代が格別高くなることもない。むしろ、数の多い内容器２に安価な包装材を使用でき、ガスバリア性に優れて高価である包装材は、数の少ない外容器３にのみ使用すればよいため、トータル的には包装材の経費を安くすることができる。このため、食品を安価に提供できることとなり、消費者にとっても経済的効果が大である。
【００９５】
本発明のうち請求項１７記載の包装食品は、請求項１乃至請求項１６のいずれかに記載の包装食品において、食品が内容器２内に一回の使用量だけ密封したので、内容器２内の食品は開封すれば一回で使い切ることができ、内容器２が複数個密封されている場合にはその残りの他の内容器２が劣化することがない。また、従来の一重包装の場合は、短期間だけ品質保持できれば良いものの場合でも、出荷から消費者に消費されるまでの期間が不確定であるため、少なくとも、消費されるまでの長期間を見越して、個々の内容器２にガスバリア性に優れた高価な包装材を使用しなければならなかったが、本発明では一回の使用量ずつ密封されているので、外容器３を開封しない限りは、内容器２内の食品の品質が確保されるため、個々の内容器２には長期間ガスバリア性を保持できない包装材を使用することもできる。このためコストが安価になり、消費者にとっても経済的である。
【００９６】
本発明のうち請求項１８記載の包装食品は、請求項１乃至請求項１７のいずれかに記載の包装食品において、外容器３が、内容器２よりも長期間ガスバリア性を有するので、樹脂フィルム製の内容器２よりも長期間ガスバリア性を確保することができるものとなり、内容器２内の食品の酸化による風味や品質の劣化及び褪色、変色を長期間防止することができる。また、内容器２のガスバリア性が劣化しても外容器３で守られることになる。また、内外どちらかの容器の気密性が損なわれても、一方の容器の気密性が残っている間はすぐに品質が損なわれることもない。
【００９７】
本発明のうち請求項１９記載の包装食品は、請求項１乃至請求項１８のいずれかに記載の包装食品において、外容器３が内容器出し入れ口７を有し、外容器３及び内容器出し入れ口７が内容器２よりも長期間ガスバリア性を有するので、樹脂フィルム製の内容器２よりも長期間ガスバリア性を確保することができるものとなり、内容器２内の食品の酸化による風味や品質の劣化及び褪色、変色を長期間防止することができる。また、たとえ内容器２のガスバリア性が劣化しても外容器３で守られることになる。
【００９８】
本発明のうち請求項２０記載の包装食品は、請求項１乃至請求項１９のいずれかに記載の包装食品において、外容器３の内容器出し入れ口７をガスバリア性又は液体バリア性又はその両方を備えたものとしたので、ガスバリア性がある場合は、内容器出し入れ口７を設けたことによる気密性の劣化がなく、内容器２内の食品の品質が保持される。液体バリア性がある場合は、長期間保存しても内部の食品（例えば、削り節）の乾燥を防止することができ、いつまでも、食品を好ましい水分に保持することが可能である。ちなみに、樹脂フィルム製の容器の中には包装しただけでは長期間の間には食品内の水分が抜けて、食品が乾燥し過ぎることがあるが、本発明ではそのようなことはない。
【００９９】
本発明のうち請求項２１記載の包装食品は、請求項１乃至請求項２０のいずれかに記載の包装食品において、外容器３の内容器出し入れ口７に封止機構１１が設けたので、外容器３を一旦開封した後も、同出し入れ口７を再度密封することができ、開封後の品質保持に役立つ。
【０１００】
【０１０４】
本発明のうち請求項２２記載の包装食品は、請求項１乃至請求項２１のいずれかに記載の包装食品において、置換されるガスを、窒素ガス等の不活性ガス、或は、炭酸ガス又はこれらの混合ガスとしたので、それらのガスで置換されていない場合に比して、内容器２内の食品の酸化防止、褪色や変色の防止効果が一層向上する。特に、炭酸ガスを用いた場合は制菌効果もある。
【０１０５】
本発明のうち請求項２３記載の包装食品は、請求項１乃至請求項２２のいずれかに記載の包装食品において、脱酸素剤４を、酸素を吸収すると炭酸ガスを発生する炭酸ガス発生型のものとした場合は、外容器３内の脱酸素剤４が酸素を吸収してもその分だけ炭酸ガスが発生するので、内外気圧は平衡状態となり、形状は保たれる。特に、酸素吸収量以上に適度に炭酸ガスを発生することができれば、外容器３が外側に膨らむ。この膨らみの有無を確認するだけで内部の食品の気密度を確認できる。また、外に膨らんだ状態が継続されていれば、絶えず内圧がかかり、内容器２又は外容器３内に外部から空気が侵入しにくくなり、品質維持に都合がよい。
【０１０６】
本発明の請求項２４記載の包装食品は、請求項１乃至請求項２３のいずれかに記載の包装食品において、外容器３が保形性を有するので、外容器３の内部の内容器が潰れず、内容器内の食品が型崩れしない。
【０１０７】
本発明の請求項２５記載の包装食品は、請求項１乃至請求項２４のいずれかに記載の包装食品において、外容器３に脱酸素剤４が塗布され、又は、外容器３が脱酸素剤４を有する材料で形成され、又は外容器３が脱酸素剤４が混入されているフィルムやシートで成型されたので、脱酸素剤４が内容器２と一体化され、内容器２と別体の脱酸素剤４を収容する場合よりも包装に手間がかからない。また内容器２内に脱酸素剤４が占めるスペースが不要になり、包装が小型にもなる。
【０１０９】
本発明の請求項２６記載の包装食品は、請求項１乃至請求項２５のいずれかに記載の包装食品において、脱酸素剤４が缶本体１４の全面に又は一部分に設けられたので、脱酸素剤４が内容器２と一体化され、内容器２と別体の脱酸素剤４を収容する場合よりも包装に手間がかからない。また内容器２内に脱酸素剤４が占めるスペースが不要になり、包装が小型にもなる。
【０１１０】
本発明の請求項２７記載の包装食品は、請求項１乃至請求項２６のいずれかに記載の包装食品において、外容器３と別体に包装された脱酸素剤が、外容器３内に収容されたもので、必要なときに、必要な分だけ脱酸素剤を収容することができる。
【図面の簡単な説明】
【図１】本発明の包装食品の第１の実施の形態を示す縦断斜視図。
【図２】本発明の包装食品の第２の実施の形態を示す一部切断状態の斜視図。
【符号の説明】
２内容器
３外容器
４脱酸素剤
５酸素検知剤
７内容器出し入れ口[0001]
BACKGROUND OF THE INVENTION
The packaged food of the present invention is a packaged food packaged in a double and airtight manner so that it can be stored for a long period of time, and is a dry food, particularly a food having a flavor, for example, flavors such as shavings, dried fish, and dashi stock. Long-term quality of seasonings, sprinkles, seaweeds such as seaweed, teas such as green tea, herbs such as herbs, delicacies such as plums, nuts such as walnuts and peanuts, confectionery such as potato chips, and breads It can be used to save.
[0002]
[Prior art]
In general, food is oxidized by oxygen in the atmosphere to deteriorate the quality, and aerobic bacteria are propagated under oxygen. For this reason, when packaging food, it is desirable to remove air (oxygen) in the packaging container as much as possible. Therefore, a packaging method that removes air in the packaging as much as possible has been put into practical use, and the main packaging methods include vacuum packaging, gas replacement filling packaging, packaging with an oxygen scavenger in a packaging container, and the like. is there.
[0003]
In the case of laver, there is a laver that is either naked or wrapped with cellophane or the like, sealed or enclosed in a can with a lid together with a desiccant. In the case of a shaving node, there is a gas-filled and packed package in a gas-tight plastic airtight bag. Recently, a shaving node is a gas barrier bag made of a multilayer (laminated) plastic film using EVOH film or the like (in accordance with JAS standard, oxygen permeability is 20 ° C., 1 ml / m in a dry state) ² ・ Many things sealed with nitrogen gas filling are available within 24h or less. Also, as disclosed in Japanese Utility Model Publication No. 56-65869, food is enclosed in an inner container without gas barrier property, and a plurality of these are enclosed in an outer container with gas barrier property together with an oxygen scavenger ( Some are double-wrapped.
[0004]
[Problems to be solved by the invention]
The conventional packaged food described above has the following problems.
(1). In vacuum packaging, the contents are crushed and the appearance is bad. In addition, since air cannot be removed sufficiently, dried foods, especially foods with a flavor, for example, seasonings such as shavings, dried sardines, dashi nomoto, sprinkles, seaweeds such as laver, teas such as green tea Herbs and other herbs, sea bream and other delicacies, walnuts and peanuts and other nuts, potato chips and other confectionery and breads, etc. It is not suitable for food packaging.
(2). Even in the case of a container with a gas barrier property, it is not possible to completely prevent oxygen from entering in the long term. Foods having the above-mentioned flavors, such as sardines and dried sardines, are remarkably oxidized, and the flavor is impaired, fading or discolored. For this reason, there is a limit to long-term storage, and it was about one year at most.
(3). In general, packaged foods often contain more than the amount of food used in a single container, so that the remaining food that cannot be used even after opening is oxidized and the flavor is impaired. , Fade or discolor.
(4). If the container is a can or a bottle, it has shape retention (it does not deform even if external pressure is applied), but if the container does not have shape retention, the container may be deformed or the food in the container It loses its shape or is crushed.
(5). When a simple oxygen scavenger is used, it usually only absorbs oxygen, so the volume in the container decreases by the amount of oxygen absorbed by the oxygen scavenger, and the container may be partially dented. Is bad.
(6). Ordinary gas-replacement packaged foods are not easily noticed of oxygen intrusion unless they are discolored or discolored, and when they are noticed, it is too late to prevent quality deterioration.
(7). A double-wrapped product is simply a package of multiple inner containers packaged in an outer container for convenience of sales or appearance. Therefore, even if double packaging, the shelf life was not particularly long.
[0005]
[Means for Solving the Problems]
The packaged food according to claim 1 of the present invention has flavors such as shavings, dried sardines, flavor seasonings, sprinkles, seaweeds, teas, herbs, delicacies, nuts, confectionery, breads and the like. The food is filled and packaged in the gas barrier inner container 2 and sealed, and the inner container 2 is placed in the outer container 3 made of a gas barrier film or a laminated sheet of paper and a gas barrier film. Gas replacement filled and sealed.
[0006]
The packaged food according to claim 2 of the present invention has flavors such as shavings, dried sardines, flavor seasonings, sprinkles, seaweeds, teas, herbs, delicacies, nuts, confectionery, breads and the like. The food is stored and sealed in an inner container 2 having a gas barrier property and having an oxygen scavenger 4, and the inner container 2 is made of a film having a gas barrier property or an outer container made of a laminated sheet of paper and a gas barrier property. 3 is gas-filled, filled and sealed.
[0007]
The packaged food according to claim 3 of the present invention has flavors such as shavings, dried sardines, flavor seasonings, sprinkles, seaweeds, teas, herbs, delicacies, nuts, confectionery, breads and the like. The food container is filled with gas replacement in an inner container 2 having gas barrier properties, sealed and sealed, and the inner container 2 is made of a gas barrier film or a laminated sheet of paper and a gas barrier film, and an oxygen scavenger. 4 is housed and sealed in an outer container 3 with 4.
[0008]
The packaged food according to claim 4 of the present invention has flavors such as shavings, dried sardines, flavor seasonings, sprinkles, seaweeds, teas, herbs, delicacies, nuts, confectionery, breads and the like. The food is gas-barrier and is housed and sealed in an inner container 2 provided with an oxygen scavenger 4, and the inner container 2 is made of a gas-barrier film or a laminated sheet of paper and gas-barrier film, and It is housed and sealed in an outer container 3 provided with an oxygen scavenger 4.
[0009]
The packaged food according to claim 5 of the present invention has flavors such as shavings, dried sardines, flavor seasonings, sprinkles, seaweeds, teas, herbs, delicacies, nuts, confectionery, breads and the like. A food is stored in an inner container 2 having a gas barrier property and having an oxygen scavenger 4 and is filled with gas replacement, and the inner container 2 is made of a film having a gas barrier property or a laminated sheet of paper and a gas barrier property film. It is made of and sealed in an outer container 3 provided with an oxygen scavenger 4, or is housed in an outer container 3 made of a film having a gas barrier property and packed by gas replacement.
[0010]
The packaged food according to claim 6 of the present invention has flavors such as shavings, dried sardines, flavor seasonings, sprinkles, seaweeds, teas, herbs, delicacies, nuts, confectionery, breads and the like. The food is stored and sealed in an inner container 2 having a gas barrier property and having an oxygen scavenger 4 or stored in an inner container 2 having a gas barrier property and filled with gas replacement, and the inner container 2 has a gas barrier property. It is made of a film or a laminated sheet of paper and a film having a gas barrier property, and is housed in an outer container 3 provided with an oxygen scavenger 4 and packed by gas replacement.
[0011]
The packaged food according to claim 7 of the present invention has flavors such as shavings, dried sardines, flavor seasonings, sprinkles, seaweeds, teas, herbs, delicacies, nuts, confectionery, breads and the like. A food is stored in an inner container 2 having a gas barrier property and having an oxygen scavenger 4 and is filled with gas replacement, and the inner container 2 is made of a film having a gas barrier property or a laminated sheet of paper and a gas barrier property film. It is made of a gas replacement filled and packaged in an outer container 3 provided with an oxygen scavenger 4.
[0012]
The packaged food according to claim 8 of the present invention has flavors such as shavings, dried sardines, flavor seasonings, sprinkles, seaweeds, teas, herbs, delicacies, nuts, confectionery, breads and the like. The food is filled and packaged in a gas barrier inner container 2 and sealed, and the inner container 2 is housed and sealed in an outer container 3 made of a liquid barrier film.
[0013]
The packaged food according to claim 9 of the present invention has flavors such as shavings, dried sardines, flavor seasonings, sprinkles, seaweeds, teas, herbs, delicacies, nuts, confectionery, breads and the like. The food is housed and sealed in an inner container 2 having a gas barrier property and having an oxygen scavenger 4, and the inner container 2 is housed and sealed in an outer container 3 made of a film having a liquid barrier property.
[0014]
The packaged food according to claim 10 of the present invention has flavors such as shavings, dried sardines, flavor seasonings, sprinkles, seaweeds, teas, herbs, delicacies, nuts, confectionery, breads and the like. Food is stored in an inner container 2 having a gas barrier property and having an oxygen scavenger 4 and filled with gas replacement, and the inner container 2 is accommodated and sealed in an outer container 3 made of a liquid barrier film. It is.
[0015]
The packaged food according to claim 11 of the present invention is the packaged food according to any one of claims 8 to 10, wherein the outer container 3 also has gas barrier properties.
[0016]
The packaged food according to claim 12 of the present invention is the packaged food according to any one of claims 8 to 10, wherein the outer container 3 also has a gas barrier property and is provided with an oxygen scavenger 4. It is.
[0017]
Of the present invention, the packaged food according to claim 13 is the packaged food according to claim 11 or 12, wherein the outer container 3 is sealed by gas replacement filling packaging.
[0018]
Of the present invention, the packaged food according to claim 14 is the packaged food according to any one of claims 1 to 13, wherein the outer container 3 and / or the inner container 2 are discolored by oxygen. Agent 5 is encapsulated.
[0019]
The packaged food according to claim 15 of the present invention is the packaged food according to any one of claims 1 to 14, wherein all or part of both or one of the outer container 3 and the inner container 2 is internal. Can be seen through.
[0020]
The packaged food according to claim 16 of the present invention is the packaged food according to any one of claims 1 to 15, wherein a plurality of inner containers 2 in which the food is packaged are sealed in the outer container 3. Is.
[0021]
Of the present invention, the packaged food according to claim 17 is the packaged food according to any one of claims 1 to 16, wherein the food is sealed in the inner container 2 once.
[0022]
The packaged food according to claim 18 of the present invention is the packaged food according to any one of claims 1 to 17, wherein the outer container 3 has a gas barrier property for a longer period than the inner container 2.
[0023]
The packaged food according to claim 19 of the present invention is the packaged food according to any one of claims 1 to 18, wherein the outer container 3 has an inner container outlet 7 and the outer container 3 and the inner container are removed. The mouth 7 has a gas barrier property for a longer period than the inner container 2.
[0024]
Of the present invention, the packaged food according to claim 20 is the packaged food according to any one of claims 1 to 19, wherein the inner container entrance 7 of the outer container 3 has gas barrier property or liquid barrier property or both. It is provided.
[0025]
The packaged food according to claim 21 of the present invention is the packaged food according to any one of claims 1 to 20, wherein a sealing mechanism 11 is provided at the inner container outlet 7 of the outer container 3. .
[0026]
[0027]
[0028]
[0029]
[0030]
Of the present invention, the packaged food according to claim 22 is the packaged food according to any one of claims 1 to 21, wherein the gas to be replaced is an inert gas such as nitrogen gas, or carbon dioxide gas or These gas mixtures are used.
[0031]
The packaged food according to claim 23 of the present invention is a packaged food according to any one of claims 1 to 22, wherein the oxygen scavenger 4 generates carbon dioxide when it absorbs oxygen. And / or non-carbon dioxide generating type that does not generate carbon dioxide even when oxygen is absorbed.
[0032]
The packaged food according to claim 24 of the present invention is the packaged food according to any one of claims 1 to 23, wherein the outer container 3 has shape retention.
[0033]
The packaged food according to claim 25 of the present invention is the packaged food according to any one of claims 1 to 24, wherein the outer container 3 is coated with the oxygen absorber 4 or the outer container 3 is the oxygen absorber. 4 or formed of a film or sheet in which the outer container 3 deoxidizer 4 is mixed.
[0035]
The packaged food according to claim 26 of the present invention is the packaged food according to any one of claims 1 to 25, wherein the oxygen scavenger 4 is provided on the entire surface or part of the outer container 3.
[0036]
The packaged food according to claim 27 of the present invention is the packaged food according to any one of claims 1 to 26, wherein the oxygen scavenger 4 packaged separately from the outer container 3 is contained in the outer container 3. Contained.
[0060]
DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1
A first embodiment of the packaged food of the present invention will be described with reference to FIG. The food in this embodiment is a shaving node. In this embodiment, food is stored in an inner container 2 made of a synthetic resin and having a gas barrier property, and is filled and packaged by gas replacement. The inner container 2 is placed in an outer container 3 made of a film having a gas barrier property. A plurality of gas replacements are made. Here, a film having a gas barrier property generally has an oxygen permeability of 7 to 8 ml / m at a temperature of 20 ° C. and in a dry state. ² ・ It means 24h or less.
[0061]
The amount of food packed in the inner container 2 is accommodated in an amount suitable for a single use (about 3 to 5 g), and the inner container 2 is once evacuated and then filled with nitrogen gas or blown out of nitrogen gas. Gas replacement and filling with either of the following methods: expelling air and replacing (substituting) and filling with nitrogen gas, or adding liquid nitrogen to expel air and replacing with gas, although the method is difficult Then, the remaining amount of oxygen in the inner container 2 is set to 5% or less (preferably 0.5% or less) of the gas in the inner container 2, and the opening is sealed (gas replacement filling packaging) in that state. is there.
[0062]
The outer container 3 contains the inner container 2 in which food is packaged, and is then gas-substituted and hermetically sealed and gas-filled and packaged. In this case, as in the case of the inner container 2, the remaining amount of oxygen is set to 5% or less (preferably 0.5% or less) of the gas in the outer container 3. Further, when the outer container 3 is gas-filled and filled, the inner container 2 is gas-filled and filled. Therefore, when the inside of the outer container 3 is evacuated, the inner container 2 tends to burst. For this reason, when the inner container 2 is gas-filled and packed in the outer container 3 of FIG. 1, the air in the outer container 3 is expelled while nitrogen gas is blown into the outer container 3 and is replaced with nitrogen gas. It is preferable to package in that state.
[0063]
The outer container 3 in FIG. 1 is formed into a horizontally long cubic bag by a gas barrier film like the inner container 2, and the position of the accommodated inner container 2 is at the center in the longitudinal direction of the outer container 3. A partition plate 9 for preventing displacement is disposed. The partition plate 9 is formed of cardboard, plastic or the like, and the same number of inner containers 2 are accommodated on both sides of the partition plate 9.
[0064]
Examples of the film having a gas barrier property that is a material of the inner container 2 and the outer container 3 include, for example, an ethylene vinyl alcohol copolymer (EVOH film), a polyvinylidene chloride (PVDC) film, a PVDC coated cellophane, and a PVDC coated biaxially stretched pet. A gas barrier film such as a laminated structure with another film (for example, OPP or PE) is used. Specific examples of this laminated structure film include, for example, OPP / EVOH / PE. In addition, a metal film or sheet such as an aluminum vapor deposition film or aluminum foil may be similarly laminated with another film (for example, OPP or PE).
[0065]
The inner container 2 and the outer container 3 are formed of a transparent film so that the food inside them can be seen from the outside.
[0066]
As a gas used for gas replacement of the inner container 2 and the outer container 3, an inert gas such as nitrogen gas, carbon dioxide gas, or a mixed gas thereof can be used. Inert gas and carbon dioxide gas are suitable for preserving food for a long period of time by suppressing deterioration of food quality. In addition, carbon dioxide has antibacterial action.
[0067]
Both or any one of the inner container 2 and the outer container 3 contains an oxygen scavenger 4 for absorbing the oxygen in the inner container 2 and preventing oxidation of the packaged food. One or a plurality of oxygen scavengers 4 are contained depending on the volume of the containers. The oxygen scavenger 4 may be a carbon dioxide generating type that generates carbon dioxide for the amount of oxygen absorbed or a carbon dioxide non-generating type that does not generate carbon dioxide. When the carbon dioxide generating oxygen scavenger 4 is used, even if the oxygen scavenger 4 in the inner container 2 or the outer container 3 absorbs oxygen, so much carbon dioxide gas is generated. Only the inner container 2 or the outer container 3 is not dented inward, and these containers are not deformed and have a good appearance. In particular, if carbon dioxide gas can be generated in excess of the oxygen absorption amount, the inner container 2 or the outer container 3 expands outward. This swelling means that the oxygen remaining in the interior is absorbed by the oxygen scavenger 4, so it is possible to check whether the gas barrier property is maintained simply by checking the presence or absence of the swelling. Convenient. Moreover, if the state swelled outside is continued, it becomes difficult for air to enter the inner container 2 or the outer container 3 from the outside, which is convenient for quality maintenance.
[0068]
Second Embodiment of the Invention
A second embodiment of the packaged food of the present invention will be described in detail with reference to FIG. The inner container 2 shown in FIG. 2 has the same structure and shape as the inner container shown in FIG. The outer container 3 shown in FIG. 2 contains one side of the periphery of a film (for example, ON / AL / CPP, etc.) in which two rectangular aluminum sheets 10 are laminated, or an aluminum vapor deposition film (for example, VM-PET / CPP, etc.). A container opening / closing port 7 is provided, and a sealing mechanism 11 such as a zipper that can be opened and closed is provided inside the loading / unloading port 7. To seal the inner container 2 to the outer container 3, the outer side (imaginary line part A) of the sealing mechanism 11 and the virtual line parts B and C on the left and right sides are sealed with an adhesive or welding. One piece D is left open, and a plurality of inner containers 2 containing food are stored in the opened piece (bottom portion) D, and then the gas is replaced to seal the piece D. , Gas replacement filling and packaging. Also in this case, the deoxygenating agent 4 of the carbon dioxide generating type or the non-carbon dioxide generating type can be put in both or either one of the inner container 2 and the outer container 3. As the gas, an inert gas such as nitrogen gas, carbon dioxide gas, or a mixed gas thereof can be used.
[0069]
An oxygen detector 5 is also accommodated in the outer container 3. The oxygen detecting agent 5 is formed in a button shape, and discolors when oxygen is detected in the case of an abnormality such as a sealing failure or a packaging material such as a pinhole in the outer container 3 or a gas replacement failure or a deoxidation agent failure. Thus, the presence of oxygen in the outer container 3 can be notified, which is useful for quality control of food. Of course, the oxygen detecting agent 5 may be placed directly in the inner container 2.
[0070]
A transparent see-through window 13 is provided in a part of the outer container 3 so that the inside can be seen through from the outside. In the case of an aluminum vapor deposition film, the see-through window 13 can be easily opened by applying a paster process. Therefore, if the oxygen detection agent 5 is arranged so that it can be seen through the see-through window 13, it can be determined whether the gas barrier property of the food in the inner container 2 is maintained.
[0071]
[0072]
[0073]
[0074]
Other Embodiments of the Invention
The outer container may be a laminated sheet of paper and a film having a gas barrier property. Since these are generally excellent in liquid barrier properties, they are convenient for the present invention.
[0075]
The oxygen scavenger 4 and the oxygen detector 5 can be put not only in the outer container 3 but also in the inner container 2. In this case, they may be put alone in each of the inner container 2 and the outer container 3, but both can be put together. In addition, the inner container 2 and the outer container 3 can be put in each of them, and the inert gas, carbon dioxide gas, or mixed gas thereof can be replaced and hermetically packaged. As shown in FIG. 1, if an opening 19 for opening is put in a part of the outer peripheral edge of the inner container 2 and the outer container 3, the opening becomes easy.
[0076]
In the above description, the oxygen absorber 4 packaged separately from the inner container 2 or the outer container 3 is accommodated in the inner container 2 or the outer container 3. Instead of being packaged separately from the outer container 3 or the outer container 3, the inner container 2 can be provided directly on the inner surface and / or the outer surface of the inner container 2, or directly on the inner surface of the outer container 3. When the inner container 2 is provided directly on the inner or outer surface of the inner container 2 or the inner surface of the outer container 3, an oxygen scavenger 4 is applied to each surface, or a material formed of a material having the oxygen scavenger 4, that is, a degassing agent. A film or sheet in which the oxygen agent 4 is mixed is laminated on each surface to form a laminated structure, or the inner container 2 or the outer container 3 is molded with the film or sheet in which the oxygen absorber 4 is mixed. You can also As the film or sheet in which the oxygen scavenger 4 is mixed, for example, a film or sheet layer formed by blending a resin having no gas barrier property with the oxygen scavenger 4 mainly containing a reducing substance, and gas barrier properties There is a film or sheet layer having a laminated structure. In either case, the inner container 2 and the outer container 3 have gas barrier properties. Of course, when the oxygen scavenger 4 is provided, it may be the entire surface or a part thereof regardless of the inner container 2 and the outer container 3. For example, in the case of a bag-like container, the oxygen scavenger 4 may be provided by laminating a film mixed with the oxygen scavenger 4 only on one surface on the inner surface. In these cases, since the oxygen scavenger 4 is integrated with the inner container 2, it takes less time to package than the case where the oxygen scavenger 4 that is separate from the inner container 2 is accommodated. In addition, the space occupied by the oxygen scavenger 4 in the inner container 2 is not required, and the packaging becomes smaller.
[0077]
[0078]
In the present invention, the oxygen scavenger 4 is provided in both or one of the inner container 2 and the outer container 3 even when the oxygen scavenger 4 separately packaged is accommodated in both or one of the inner container 2 and the outer container 3. Or what was shape | molded with the material which has the oxygen absorber 4 in those containers can also be used. In the present invention, the outer container 3 can have a liquid barrier property. In addition, the outer container 3 can have not only a liquid barrier property but also a gas barrier property. If the outer container 3 also has a gas barrier property, the outer container 3 can further include an oxygen scavenger 4. .
[0079]
【The invention's effect】
The packaged food according to the first aspect of the present invention is such that the food is double-packaged by the inner container 2 having a gas barrier property and the outer container 3 having a gas barrier property, and each of the inner container 2 and the outer container 3 has two. Since it is packed with gas replacement, it has the following effects.
(1). The double penetration of oxygen into the inner container 2 can be prevented and the invasion can be prevented for a long time, so that the flavor and quality of the food in the inner container 2 can be maintained for a long time and the discoloration and discoloration are also long. The period can be prevented. For example, in the case of a normal shaving pack product, the shelf life (quality retention time) is 1 year, and in the present invention, it may be 1 year to 2 years or more.
(2). Since the outer container 3 also has a gas barrier property, if the gas barrier property can be ensured for a long period of time, the quality of food in the inner container 2 is ensured even if the gas barrier property of the inner container 2 can be maintained only for a short period of time. For this reason, it is possible to use an inexpensive packaging material for the inner container 2, and the packaging container cost is not significantly higher than that of the conventional simple double packaging. Rather, if the number of the inner containers 2 is large, an inexpensive packaging material can be used, and the packaging material that has excellent gas barrier properties and is expensive may be used only for the small number of outer containers 3, so that the total packaging is achieved. The cost of the material can be reduced. For this reason, food can be provided at a low cost, and the economic effect is great for consumers.
(3). Also, in the case of conventional single packaging, even if it is only necessary to maintain the quality for a short period, the period from shipment to consumption by the consumer is uncertain, so at least the long-term until consumption is anticipated. In addition, in the present invention, in the case of food used for a short period of time, unless the outer container 3 is opened, the contents must be used. Since the quality of the food in the container 2 is ensured, a packaging material that cannot maintain gas barrier properties for a long time can be used for each inner container 2. For example, a product that can be consumed in one month until the outer container 3 is opened and consumed after the inner container 2 of a plurality of small amounts used is stored in the outer container 3 and reaches the consumer's hand. For example, the inner container 2 can be made of a packaging material having gas barrier properties that can maintain the quality for only one month. For this reason, the cost is low and it is economical for consumers.
[0080]
In the present invention, the packaged food according to claim 2 is provided by sealing the inner container 2 having gas barrier properties with an oxygen scavenger 4 and filling the inner container 2 with gas replacement in an outer container 3 having gas barrier properties. Since there is almost no residual oxygen in the outer container 3, oxygen in the outer container 3 hardly enters the inner container 2. For example, even if a small amount of oxygen remaining in the outer container 3 enters the inner container 2, the oxygen is absorbed by the oxygen scavenger 4 in the inner container 2. The quality can be maintained for a long time, and fading and discoloration can be prevented for a long time. Furthermore, even if the airtightness of the inner container 2 and the outer container 3 is somewhat impaired, the quality of the food is maintained while the oxygen scavenger 4 in the inner container 2 is effective.
[0081]
The packaged food according to claim 3 of the present invention is such that the food is gas-filled and filled in an inner container 2 having a gas barrier property, and the inner container 2 is sealed together with an oxygen scavenger 4 in an outer container 3 having a gas barrier property. Therefore, even if a small amount of oxygen remains in the outer container 3, the remaining oxygen is absorbed by the oxygen scavenger 4, making it difficult for oxygen to enter the inner container 2. The flavor and quality can be maintained for a long time, and fading and discoloration can be prevented for a long time. Moreover, even if the airtightness of the inner container 2 and the outer container 3 is somewhat impaired, the quality of the food is maintained while the oxygen scavenger 4 in the outer container 3 is effective.
[0082]
In the packaged food according to claim 4 of the present invention, the food is sealed together with the oxygen scavenger 4 in the inner container 2 having gas barrier properties, and the oxygen absorber 4 is sealed in the outer container 3 having gas barrier properties. The residual oxygen in the inner container 2 is absorbed by the oxygen scavenger 4 in the inner container 2, and the residual oxygen in the outer container 3 is absorbed by the oxygen scavenger 4 in the outer container 3, respectively. The flavor and quality of the food in the inner container 2 are maintained for a longer period of time than when the oxygen agent 4 is not added, and discoloration and discoloration are prevented for a long period of time. Moreover, even if the airtightness of the inner container 2 and the outer container 3 is somewhat impaired, the quality of the food is maintained as long as the oxygen scavenger 4 in the inner container 2 and the outer container 3 is effective. .
[0083]
The packaged food according to claim 5 of the present invention is stored in an inner container 2 having a gas barrier property and having an oxygen scavenger, and the inner container 2 has a gas barrier property and is removed. Since it is housed and sealed in the outer container 3 provided with the oxygen agent 4 or housed in the outer container 3 having a gas barrier property and filled with gas replacement, the inner container is used when the outer container 3 is made like the former. 2 is absorbed by the oxygen scavenger 4 in the inner container 2 and the oxygen remaining in the outer container 3 is absorbed by the oxygen scavenger 4 in the outer container 3, respectively. In comparison with this, it is possible to maintain the flavor and quality of the food in the inner container 2 for a longer period and to prevent discoloration and discoloration for a longer period. Moreover, even if the airtightness of the inner container 2 and the outer container 3 is somewhat impaired, the quality of the food is maintained as long as both the inner container 2 and / or the outer container 3 are effective. It will be. When the outer container 3 is the latter, oxygen does not remain in the outer container 3, so that oxygen does not enter the inner container 2 from the outside.
[0084]
The packaged food according to claim 6 of the present invention is such that the food is stored and sealed in the inner container 2 having a gas barrier property and provided with the oxygen scavenger 4, or is stored in the inner container 2 having a gas barrier property and gas. Since the inner container 2 has a gas barrier property and is accommodated in the outer container 3 provided with the oxygen scavenger 4 and is packed by gas replacement filling, there is almost no oxygen remaining in the outer container 3. The oxygen does not enter the inner container 2 from the outer container 3. Moreover, even if oxygen does not remain in the inner container 2 and oxygen enters from the outer container 3, the oxygen is absorbed by the oxygen scavenger 4 in the inner container 2. And quality can be maintained for a long time, and fading and discoloration can be prevented for a long time. Moreover, even if the airtightness of the inner container 2 and the outer container 3 is somewhat impaired, the quality of the food is maintained while the oxygen scavenger 4 in the inner container 2 is effective.
[0085]
The packaged food according to claim 7 of the present invention is such that the food has a gas barrier property and is contained in an inner container 2 provided with an oxygen scavenger 4 and is filled with gas replacement, and the inner container 2 has a gas barrier property. Since it is accommodated in the outer container 3 having the oxygen scavenger 4 and is filled with gas replacement, the oxygen is left in the outer container 3 even if a little oxygen remains in the inner container 2. Also, the residual oxygen is absorbed by the oxygen scavenger 4. For this reason, oxygen does not enter the inner container 2 from the outer container 3, the flavor and quality of the food in the inner container 2 can be maintained for a long time, and discoloration and discoloration can be prevented for a long time. Even if the airtightness of the inner container 2 and the outer container 3 is somewhat impaired, the quality of the food is maintained while the oxygen scavenger 4 in the outer container 3 is effective.
[0086]
The packaged food according to claim 8 of the present invention is such that the food is gas-filled and filled in an inner container 2 having gas barrier properties, and the inner container 2 is housed and sealed in an outer container 3 having liquid barrier properties. Therefore, it is possible to prevent water and moisture from entering and dissipating into and out of the outer container 3 and to prevent the quality of food that cannot be prevented by the inner container 2 alone from being deteriorated by water or moisture. And long-term quality maintenance is possible. In addition, there are cases where it is insufficient to store food in preferable moisture with the inner container 2 alone, and particularly when the inner container 2 is a resin film, this tends to occur. However, the outer container 3 prevents drying and moisture absorption of the food and further improves the quality of the food. In addition, since the food is filled and packaged in the inner container 2 by gas replacement, there is almost no residual oxygen in the inner container 2, and oxidation and quality deterioration of the food in the inner container 2 are prevented.
[0087]
The packaged food according to claim 9 of the present invention is housed and sealed in an inner container 2 having a gas barrier property and having an oxygen scavenger 4, and the inner container 2 is contained in an outer container 3 having a liquid barrier property. Since the outer container 3 is hermetically sealed, the liquid barrier property of the outer container 3 prevents water and moisture from entering and dissipating into and out of the outer container 3, and the quality of food that cannot be prevented by the inner container 2 alone deteriorates due to water and moisture. Can be prevented. In addition, there are cases where it is insufficient to store food in preferable moisture with the inner container 2 alone, and particularly when the inner container 2 is a resin film, this tends to occur. However, the outer container 3 prevents the food from drying and moisture absorption, thereby further improving the quality of the food. In addition, since the inner container 2 includes the oxygen scavenger 4, the residual oxygen in the inner container 2 is absorbed therein, and oxidation and quality deterioration of the food in the inner container 2 are prevented.
[0088]
The packaged food according to claim 10 of the present invention is such that the food is gas-barrier and contained in the inner container 2 provided with the oxygen scavenger 4 and is filled with gas replacement, and the inner container 2 is liquid-barrier. Since the outer container 3 is housed and sealed, the liquid barrier property of the outer container 3 can prevent water and moisture from entering and escaping into and out of the outer container 3, and the quality of food that cannot be prevented by the inner container 2 alone is water. And can be prevented from deteriorating due to moisture. In addition, there are cases where it is insufficient to store food in preferable moisture with the inner container 2 alone, and particularly when the inner container 2 is a resin film, this tends to occur. However, the outer container 3 prevents drying and moisture absorption of the food and further improves the quality of the food. In addition, since the food is filled and packaged in the inner container 2 by gas replacement, there is almost no residual oxygen in the inner container 2, and oxidation and quality deterioration of the food in the inner container 2 are prevented. Furthermore, since the inner container 2 includes the oxygen scavenger 4, even if there is residual oxygen in the inner container 2, the oxygen is absorbed by the oxygen scavenger 4 and prevents oxidation and quality deterioration of the food in the inner container 2. Is done.
[0089]
Of the present invention, the packaged food according to claim 11 is the packaged food according to any one of claims 8 to 10, and the outer container 3 also has gas barrier properties. In addition to the effects of each of the 10 packaged foods, the gas barrier property of the outer container 3 makes it difficult for oxygen to enter the outer container 3 from the outside, and the quality of the food in the inner container 2 is increased by moisture and moisture inside and outside the outer container. Long-term quality maintenance is possible without deterioration.
[0090]
The packaged food according to claim 12 of the present invention is the packaged food according to any one of claims 8 to 10, wherein the outer container 3 has gas barrier properties and is provided with an oxygen scavenger 4. Therefore, in addition to the effects of the packaged foods of claims 8 to 10, the gas barrier property of the outer container 3 makes it difficult for oxygen to enter the outer container 3 from the outside. Since the oxygen agent 4 absorbs oxygen that has entered the outer container 3, the quality of the food in the inner container 2 is also maintained.
[0091]
Of the present invention, the packaged food according to claim 13 is the packaged food according to claim 11 or 12, wherein the outer container 3 is sealed by gas replacement filling and packaging. In addition to the effects of the packaged food, the outer container 3 is sealed by filling with gas replacement, so that there is almost no residual oxygen in the outer container 3 and the quality of the food in the inner container 2 is better maintained. There is also an effect.
[0092]
Of the present invention, the packaged food according to claim 14 is the packaged food according to any one of claims 1 to 13, wherein the outer container 3 and / or the inner container 2 are discolored by oxygen. Since the agent 5 is enclosed, the presence or absence of oxygen in the outer container 3 and the inner container 2 can be easily and surely confirmed by allowing the oxygen detector 5 to be seen through from the outside. Quality control becomes very easy. Incidentally, since the invasion of oxygen cannot be judged by visual observation, it is difficult to notice the invasion of oxygen unless the food is discolored or discolored, and when it is noticed, it is too late to prevent quality degradation. There is no such thing.
[0093]
Of the present invention, the packaged food according to claim 15 is the packaged food according to any one of claims 1 to 14, wherein the outer container 3 and / or the inner container 2 are all or part of the inner container 2. Therefore, even if the outer container 3 is not opened, the food in the inner container 2 can be confirmed from the outside of the outer container 3 without opening the outer container 3, and the quality of the food can be easily controlled. In the latter case, the food in the inner container 2 can be confirmed from the outside of the inner container 2 and the state in the outer container 3 can be confirmed from the outside of the outer container 2 without opening the outer container 3, Easy quality control. Moreover, although the packaged food is uneasy when the packaged food cannot be seen from the outside, such anxiety is also eliminated.
[0094]
The packaged food according to claim 16 of the present invention is the packaged food according to any one of claims 1 to 15, wherein a plurality of inner containers 2 packed with food are sealed in the outer container 3. Therefore, the number of outer containers 3 is reduced with respect to the number of inner containers 2, and handling and management during transportation, inventory management, sales, etc. are facilitated. Moreover, since the outer container 3 also has a gas barrier property, even if the gas barrier property of the inner container 2 can be maintained only for a short period of time, the quality of the food in the inner container 2 is ensured. For this reason, it is possible to use an inexpensive packaging material for the inner container 2, and the packaging container cost will not be particularly high even if double packaging is performed. Rather, an inexpensive packaging material can be used for the large number of inner containers 2, and the packaging material that has an excellent gas barrier property and is expensive can be used only for the small number of outer containers 3. Expenses can be reduced. For this reason, food can be provided at a low cost, and the economic effect is great for consumers.
[0095]
Of the present invention, the packaged food according to claim 17 is the packaged food according to any one of claims 1 to 16, wherein the food is sealed in the inner container 2 by a single use amount. The inner food can be used up once when it is opened. When a plurality of inner containers 2 are sealed, the remaining other inner containers 2 do not deteriorate. Also, in the case of conventional single packaging, even if it is only necessary to maintain the quality for a short period, the period from shipment to consumption by the consumer is uncertain, so at least the long-term until consumption is anticipated. In addition, an expensive packaging material excellent in gas barrier properties had to be used for each inner container 2, but in the present invention, since it is sealed for each use amount, unless the outer container 3 is opened. Since the quality of the food in the inner container 2 is ensured, the individual inner container 2 can be made of a packaging material that cannot maintain gas barrier properties for a long time. For this reason, the cost is low and it is economical for consumers.
[0096]
The packaged food according to claim 18 of the present invention is a resin film in the packaged food according to any one of claims 1 to 17 because the outer container 3 has a gas barrier property for a longer period than the inner container 2. The gas barrier property can be ensured for a longer time than the inner container 2 made of the product, and the deterioration of flavor and quality, discoloration, and discoloration due to the oxidation of the food in the inner container 2 can be prevented for a long time. Further, even if the gas barrier property of the inner container 2 is deteriorated, it is protected by the outer container 3. Further, even if the airtightness of either the inside or outside of the container is impaired, the quality is not immediately impaired while the airtightness of one container remains.
[0097]
The packaged food according to claim 19 of the present invention is the packaged food according to any one of claims 1 to 18, wherein the outer container 3 has an inner container outlet 7 and the outer container 3 and the inner container are removed. Since the mouth 7 has a gas barrier property for a longer period than the inner container 2, the gas barrier property can be secured for a longer period than the inner container 2 made of resin film, and the flavor and quality due to the oxidation of food in the inner container 2. Deterioration, discoloration, and discoloration can be prevented for a long time. Moreover, even if the gas barrier property of the inner container 2 is deteriorated, it is protected by the outer container 3.
[0098]
The packaged food according to claim 20 of the present invention is the packaged food according to any one of claims 1 to 19, wherein the inner container outlet 7 of the outer container 3 has a gas barrier property or a liquid barrier property or both. Since it was provided, when there is a gas barrier property, there is no deterioration in airtightness due to the provision of the inner container outlet 7 and the quality of the food in the inner container 2 is maintained. In the case of having a liquid barrier property, even when stored for a long period of time, it is possible to prevent the food inside (for example, shavings) from being dried, and it is possible to keep the food in a preferable moisture indefinitely. By the way, if it is simply packaged in a container made of a resin film, moisture in the food may be lost for a long period of time and the food may become too dry, but this is not the case in the present invention.
[0099]
Of the present invention, the packaged food according to claim 21 is the packaged food according to any one of claims 1 to 20, since the sealing mechanism 11 is provided at the inner container entrance 7 of the outer container 3. Even after the container 3 is once opened, the loading / unloading port 7 can be sealed again, which helps to maintain the quality after opening.
[0100]
[0104]
Of the present invention, the packaged food according to claim 22 is the packaged food according to any one of claims 1 to 21, wherein the gas to be replaced is an inert gas such as nitrogen gas, or carbon dioxide gas or Since these mixed gases are used, the effect of preventing oxidation, discoloration and discoloration of the food in the inner container 2 is further improved as compared with the case where the gas is not replaced with those gases. In particular, when carbon dioxide gas is used, there is also a bactericidal effect.
[0105]
Of the present invention, the packaged food according to claim 23 is a carbon dioxide generation type in which the oxygen scavenger 4 generates carbon dioxide when oxygen is absorbed in the packaged food according to any one of claims 1 to 22. If it is assumed, carbon dioxide gas is generated as much as the oxygen scavenger 4 in the outer container 3 absorbs oxygen, so that the internal and external air pressures are in an equilibrium state and the shape is maintained. In particular, if the carbon dioxide gas can be generated appropriately beyond the oxygen absorption amount, the outer container 3 expands outward. The airtightness of the internal food can be confirmed simply by confirming the presence or absence of this bulge. Moreover, if the state which swelled outside is continued, internal pressure will be applied continuously, it will become difficult for air to enter into the inner container 2 or the outer container 3 from the outside, and it is convenient for quality maintenance.
[0106]
In the packaged food according to claim 24 of the present invention, in the packaged food according to any one of claims 1 to 23, since the outer container 3 has shape retention, the inner container inside the outer container 3 is crushed. The food in the inner container does not lose its shape.
[0107]
The packaged food according to claim 25 of the present invention is the packaged food according to any one of claims 1 to 24, wherein the outer container 3 is coated with the oxygen absorber 4 or the outer container 3 is the oxygen absorber. 4, or the outer container 3 is formed of a film or sheet in which the oxygen scavenger 4 is mixed, so that the oxygen scavenger 4 is integrated with the inner container 2 and separated from the inner container 2. The packaging takes less time than the case of storing the oxygen scavenger 4. In addition, the space occupied by the oxygen scavenger 4 in the inner container 2 is not required, and the packaging becomes smaller.
[0109]
The packaged food according to claim 26 of the present invention is the packaged food according to any one of claims 1 to 25, wherein the oxygen scavenger 4 is provided on the entire surface or a part of the can body 14, so The agent 4 is integrated with the inner container 2, and the packaging is less time-consuming than the case where the oxygen absorber 4 that is separate from the inner container 2 is accommodated. In addition, the space occupied by the oxygen scavenger 4 in the inner container 2 is not required, and the packaging becomes smaller.
[0110]
The packaged food according to claim 27 of the present invention is the packaged food according to any one of claims 1 to 26, wherein an oxygen scavenger packaged separately from the outer container 3 is contained in the outer container 3. Therefore, it is possible to accommodate an oxygen scavenger as much as necessary when necessary.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view showing a first embodiment of a packaged food according to the present invention.
FIG. 2 is a partially cutaway perspective view showing a second embodiment of the packaged food of the present invention.
[Explanation of symbols]
2 Inner container
3 Outer container
4 Oxygen absorber
5 Oxygen detector
7 Inner container outlet

Claims

Foods with flavor such as shavings, dried sardines, flavor seasonings, sprinkles, seaweeds, teas, herbs, delicacies, nuts, confectionery, breads, etc. are placed in a gas barrier inner container (2). Gas replacement filled and packaged and sealed, and the inner container (2) was sealed by gas replacement filled and packaged in an outer container (3) made of a gas barrier film or a laminated sheet of paper and gas barrier film. Packaged food characterized by

Foods with flavor such as shavings, dried sardines, seasonings, sprinkles, seaweeds, teas, herbs, delicacies, nuts, confectionery, breads, etc. are gas barrier and oxygen scavenger (4) The inner container (2) is sealed in an inner container (2), and the inner container (2) is gas-replaced into an outer container (3) made of a gas barrier film or a laminated sheet of paper and a gas barrier film. Packaged food characterized by being filled and packaged and sealed.

Foods with flavor such as shavings, dried sardines, flavor seasonings, sprinkles, seaweeds, teas, herbs, delicacies, nuts, confectionery, breads, etc. are placed in a gas barrier inner container (2). The inner container (2) is made of a gas barrier film or a laminated sheet of paper and a gas barrier film and is provided with an oxygen scavenger (4). 3) Packaged food characterized by being housed and sealed.

Foods with flavor such as shavings, dried sardines, seasonings, sprinkles, seaweeds, teas, herbs, delicacies, nuts, confectionery, breads, etc. are gas barrier and oxygen scavenger (4) The inner container (2) is housed and sealed in an inner container (2), and the inner container (2) is made of a gas barrier film or a laminated sheet of paper and a gas barrier film, and an oxygen scavenger (4) is added. Packaged food characterized by being housed and sealed in an outer container (3) provided.

Foods with flavor such as shavings, dried sardines, seasonings, sprinkles, seaweeds, teas, herbs, delicacies, nuts, confectionery, breads, etc. are gas barrier and oxygen scavenger (4) Gas replacement filling and packaging, and this inner container (2) is made of a film having a gas barrier property or a laminated sheet of a paper and a gas barrier property, and an oxygen scavenger A packaged food characterized by being housed and sealed in an outer container (3) provided with (4) or housed in an outer container (3) made of a film having a gas barrier property and filled with gas.

Foods with flavor such as shavings, dried sardines, seasonings, sprinkles, seaweeds, teas, herbs, delicacies, nuts, confectionery, breads, etc. are gas barrier and oxygen scavenger (4) In an inner container (2) having a gas barrier property, or in a gas barrier inner container (2) for gas replacement filling and packaging, and the inner container (2) is made of a gas barrier film or paper. A packaged food characterized by being made of a laminated sheet with a film having a gas barrier property and housed in an outer container (3) provided with an oxygen scavenger (4) and packed by gas replacement.

Foods with flavor such as shavings, dried sardines, seasonings, sprinkles, seaweeds, teas, herbs, delicacies, nuts, confectionery, breads, etc. are gas barrier and oxygen scavenger (4) Gas replacement filling and packaging, and this inner container (2) is made of a film having a gas barrier property or a laminated sheet of a paper and a gas barrier property, and an oxygen scavenger A packaged food characterized in that it is housed in an outer container (3) provided with (4) and packed in a gas-filled package.

Foods with flavor such as shavings, dried sardines, flavor seasonings, sprinkles, seaweeds, teas, herbs, delicacies, nuts, confectionery, breads, etc. are placed in a gas barrier inner container (2). A packaged food characterized in that the inner container (2) is housed and sealed in an outer container (3) made of a film having a liquid barrier property.

Foods with flavor such as shavings, dried sardines, seasonings, sprinkles, seaweeds, teas, herbs, delicacies, nuts, confectionery, breads, etc. are gas barrier and oxygen scavenger (4) A packaged food characterized in that it is housed and sealed in an inner container (2) provided with a container, and this inner container (2) is housed and sealed in an outer container (3) made of a liquid barrier film.

Foods with flavor such as shavings, dried sardines, seasonings, sprinkles, seaweeds, teas, herbs, delicacies, nuts, confectionery, breads, etc. are gas barrier and oxygen scavenger (4) A package characterized by being housed in an inner container (2) equipped with a gas replacement filled and packaged, and the inner container (2) was housed and sealed in an outer container (3) made of a liquid barrier film. Food.

The packaged food according to any one of claims 8 to 10, wherein the outer container (3) also has gas barrier properties.

The packaged food according to any one of claims 8 to 10, wherein the outer container (3) has gas barrier properties and is provided with an oxygen scavenger (4).

The packaged food according to claim 11 or 12, wherein the inside of the outer container (3) is sealed by gas replacement filling packaging.

The packaging according to any one of claims 1 to 13, wherein an oxygen detector (5) that changes color by oxygen is sealed in both or either one of the outer container (3) and the inner container (2). Food.

The packaging according to any one of claims 1 to 14, wherein the outer container (3) and / or the inner container (2) are all or a part of which can be seen through. Food.

The packaged food according to any one of claims 1 to 15, wherein a plurality of inner containers (2) packed with food are sealed in the outer container (3).

The packaged food according to any one of claims 1 to 16, characterized in that the food is a single use amount sealed in the inner container (2).

The packaged food according to any one of claims 1 to 17, wherein the outer container (3) has a longer gas barrier property than the inner container (2).

The outer container (3) has an inner container inlet / outlet (7), and the outer container (3) and the inner container inlet / outlet (7) have a gas barrier property for a longer period than the inner container (2). The packaged food according to any one of Items 1 to 18.

The packaged food according to any one of claims 1 to 19, wherein the inner container outlet / inlet (7) of the outer container (3) is provided with a gas barrier property, a liquid barrier property or both.

The packaged food according to any one of claims 1 to 20, wherein a sealing mechanism (11) is provided at an inner container outlet / inlet (7) of the outer container (3).

The packaged food according to any one of claims 1 to 21, wherein the gas to be replaced is an inert gas such as nitrogen gas, carbon dioxide gas, or a mixed gas thereof.

Carbon dioxide generating type that generates carbon dioxide when the oxygen scavenger (4) absorbs oxygen and / or carbon dioxide non-generating type that does not generate carbon dioxide even if oxygen is absorbed The packaged food according to any one of claims 1 to 22, wherein the packaged food is provided.

The packaged food according to any one of claims 1 to 23, wherein the outer container (3) has shape retention.

An oxygen absorber (4) is applied to the outer container (3), or the outer container (3) is formed of a material having an oxygen absorber (4), or the outer container (3) is an oxygen absorber (4). 25. The packaged food according to any one of claims 1 to 24, wherein the packaged food is molded with a film or sheet in which is mixed.

The packaged food according to any one of claims 1 to 25, wherein the oxygen scavenger (4) is provided on the entire surface or a part of the outer container (3).

27. The packaged food according to claim 1, wherein the oxygen absorber (4) packaged separately from the outer container (3) is contained in the outer container (3). .