JP2004262532A

JP2004262532A - Food packed body manufacturing method, and food packing device

Info

Publication number: JP2004262532A
Application number: JP2003056638A
Authority: JP
Inventors: Koji Kani; 浩二可児
Original assignee: Nikko Seika KK
Current assignee: Nikko Seika KK
Priority date: 2003-03-04
Filing date: 2003-03-04
Publication date: 2004-09-24
Anticipated expiration: 2023-03-04
Also published as: JP4077747B2

Abstract

<P>PROBLEM TO BE SOLVED: To provide a food packed body manufacturing method capable of preventing water from entering a non-sealed part when warming or heating food with hot water or the like, and reliably and easily drying the food in a subsequent process. <P>SOLUTION: In this manufacturing method, a film 7 is folded to form a face side film 7a and a back side film 7b, and an open side end is sealed to form a longitudinal seal part 7c. When the longitudinal seal part 7c is formed, an additional seal part 7e is simultaneously formed by sealing end portions of the face side film 7a and the back side film 7b with a space keeping from the longitudinal seal part 7c. Next, food 1 is filled, a transverse seal part 7d is formed, the food is heated with hot water or the like and dried, and the face side film 7a is cut at a non-sealed part 7f so that at least a part of the non-sealed part 7f between the additional seal part 7e and the longitudinal seal part 7c is left on the longitudinal seal part 7c side. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

【０００１】
【発明の属する技術分野】
この発明は、食物が密封状態に包装されてなる食物包装体の製造方法、および、食物を密封状態に包装する、食物の包装装置に関するものである。
【０００２】
【従来の技術】
従来、ゼリー等の食物が、密封状態に包装された食物包装体として、例えば、図１７に示される食品包装体があった。この食品包装体２１は、フィルム２２が折り返されて表側フィルム２２ａと裏側フィルム２２ｂとが形成され、その折り返された折返し部２２ｃを除く三方が、シールされていた。そして、フィルム２２によって囲まれた充填空間内に食品２３が充填されていた。また、この食品包装体２１は、折返し部２２ｃに対向するシール部２２ｄが、フィルム２２の先端から、若干離れた位置に設けられており、そのフィルム２２の先端部分には、未シール部２２ｅが残されていた。この未シール部２２ｅは、中の食品２３を取り出す際の便宜のために設けられたものであり、この未シール部２２ｅのフィルム２２を掴んで互いに引き離すようにすることで、シール部２２ｄを容易に開くことができた。
【０００３】
【発明が解決しようとする課題】
ところで、前記従来の食品包装体２１にあっては、殺菌等のために、例えば熱水等によって食品包装体２１を加熱することがあった。そして、この場合には、食品包装体２１に付着した水分を除去するために、この食品包装体２１を乾燥させていた。しかし、食品包装体２１の表面に付着した水分は除去されても、前記未シール部２２ｅ内に入り込んだ水分、すなわち、前記未シール部２２ｅの表側フィルム２２ａと裏側フィルム２２ｂとの間に入り込んだ水分は、簡単には除去されず、その除去に苦慮していた。
【０００４】
この発明は、上記した従来の欠点を解決するためになされたものであり、その目的とするところは、熱水等による保温あるいは加熱の際に水分が未シール部内に入り込む虞がなく、その後の乾燥を確実かつ容易に行なうことができる、食物包装体の製造方法、および、食物の包装装置を提供することにある。
【０００５】
【課題を解決するための手段】
この発明に係る食物包装体の製造方法、および、食物の包装装置は、前記目的を達成するために、次の構成からなる。すなわち、
請求項１に記載の発明に係る食物包装体の製造方法は、食物が密封状態に包装されてなる食物包装体を製造する製造方法であって、次の工程を備える。
〈第１形成工程〉長手方向に搬送されるフィルムを、表側と裏側との両側に位置するように配備することで、表側フィルムと裏側フィルムとを形成し、それら表側フィルムと裏側フィルムとの間に前記食物が充填される充填空間を形成すべく、それら表側フィルムと裏側フィルムとの開口する側端側を、前記長手方向にシールして、縦シール部を形成する。
〈充填工程〉前記フィルムに前記縦シール部が形成される前の、そのフィルムの側方開口部あるいは前記フィルムの搬送方向とは反対の方向に開口する後方開口部を通じて、前記食物を前記充填空間に充填する。
〈第２形成工程〉前記充填空間に充填された前記食物を前記長手方向に分離すべく、前記表側フィルムと前記裏側フィルムとを、横方向にシールして、横シール部を形成する。
〈付加形成工程〉前記第１形成工程中あるいはそれ以降に行なわれる工程であって、前記表側フィルムと前記裏側フィルムとの、前記縦シール部とは間隔を置いてさらに側端側となる端部部分を、前記長手方向にシールして、付加シール部を形成する。
〈保温・加熱工程〉前記第１形成工程、前記充填工程、前記第２形成工程および前記付加形成工程によって形成される、前記食物が前記長手方向に分離されて密封状態となって並ぶ、連続包装体を、温水とか熱水等の水または蒸気によって保温あるいは加熱する。
〈乾燥工程〉その保温あるいは加熱が完了した前記連続包装体を乾燥させる。〈後処理工程〉その乾燥した前記連続包装体において、前記付加シール部と前記縦シール部との間の未シール部の少なくとも一部を、前記縦シール部側に残すようにして、その未シール部における、前記表側フィルムと前記裏側フィルムとの一方または両方を、切断して、あるいは切断可能に形成して、前記食物包装体を製造する。
【０００６】
この製造方法によると、未シール部は、フィルムの側端側の縦シール部と付加シール部との間に形成される。このように、未シール部が、付加シール部および縦シール部によって、閉塞した状態となり、この状態で、連続包装体は、温水とか熱水等の水または蒸気によって保温あるいは加熱される。したがって、この保温・加熱工程の際に、水分が未シール部内に入り込むことがない。もっとも、連続包装体は、フィルムの長手方向の各端において、未シール部が前記長手方向に開口していると、その開口から水分が侵入する虞があるため、このフィルムの長手方向の各端における未シール部を、シール等により閉じておくのが望ましい。そして、乾燥工程を経た後、後処理工程において、前記未シール部の少なくとも一部を、縦シール部側に残すようにして、その未シール部における、表側フィルムと裏側フィルムとの一方または両方を、切断し、あるいは切断可能に形成することで、食物包装体が製造される。したがって、この後処理工程によって、表側フィルムと裏側フィルムとの一方または両方が切断されれば、縦シール部に隣接した未シール部が開放することとなり、この未シール部における、表側フィルムと裏側フィルムとを摘んで互いに引き離すことで、縦シール部、さらには横シール部は、容易に開く。また、この後処理工程によって、表側フィルムと裏側フィルムとの一方または両方が切断可能に形成された場合には、その後に、その切断可能に形成された部分を切断することで、縦シール部に隣接した未シール部が開放することとなり、同様にして、この未シール部における、表側フィルムと裏側フィルムとを摘んで互いに引き離すことで、縦シール部、さらには横シール部は、容易に開く。
【０００７】
また、請求項２に記載の発明に係る食物包装体の製造方法のように、請求項１に記載の製造方法における前記第１形成工程において、前記表側フィルムと前記裏側フィルムとは、前記フィルムが、その横方向に折り返されて形成されてもよい。
【０００８】
また、請求項３に記載の発明に係る食物包装体の製造方法のように、請求項１または２に記載の製造方法において、前記付加形成工程は、前記第１形成工程における前記縦シール部の形成と一緒に行なわれてもよい。このように、付加形成工程、すなわち、付加シール部の形成を、縦シール部の形成と一緒に行なうことで、全体の工程が簡略化される。
【０００９】
また、請求項４に記載の発明に係る食物包装体の製造方法のように、請求項１ないし３のいずれか１項に記載の製造方法において、前記未シール部に隣接する前記縦シール部は、その未シール部側が、凹凸状に反復形成されてもよい。これにより、縦シール部および横シール部を剥がす際には、未シール部において、表側フィルムと裏側フィルムとを摘んで互いに引き離すと、縦シール部における未シール部側の凹凸状に反復形成された凸部の先端から順に開くこととなり、この縦シール部および横シール部は、一層容易に開く。
【００１０】
また、請求項５に記載の発明に係る食物包装体の製造方法は、食物が密封状態に包装されてなる食物包装体を製造する製造方法であって、次の工程を備える。
〈第１形成工程〉長手方向に搬送されるフィルムを、その横方向に折り返すようにして表側と裏側との両側に位置するように配備することで、表側フィルムと裏側フィルムとを形成し、それら表側フィルムと裏側フィルムとの間に前記食物が充填される充填空間を形成すべく、それら表側フィルムと裏側フィルムとの開口する側端側を、前記長手方向にシールして、縦シール部を形成するとともに、前記表側フィルムと前記裏側フィルムとの、前記フィルムが折り返された折返し部側を、その折返し部とは間隔を置いて前記長手方向にシールして、補助シール部を形成する。
〈充填工程〉前記フィルムに前記縦シール部が形成される前の、そのフィルムの側方開口部あるいは前記フィルムの搬送方向とは反対の方向に開口する後方開口部を通じて、前記食物を前記充填空間に充填する。
〈第２形成工程〉前記充填空間に充填された前記食物を前記長手方向に分離すべく、前記表側フィルムと前記裏側フィルムとを、横方向にシールして、横シール部を形成する。
〈保温・加熱工程〉前記第１形成工程、前記充填工程および前記第２形成工程によって形成される、前記食物が前記長手方向に分離されて密封状態となって並ぶ、連続包装体を、温水とか熱水等の水または蒸気によって保温あるいは加熱する。
〈乾燥工程〉その保温あるいは加熱が完了した前記連続包装体を乾燥させる。〈後処理工程〉その乾燥した前記連続包装体において、前記補助シール部と前記折返し部との間の未シール部の少なくとも一部を、前記補助シール部側に残すようにして、その未シール部における、前記表側フィルムと前記裏側フィルムとの一方または両方を、切断して、あるいは切断可能に形成して、前記食物包装体を製造する。
【００１１】
この製造方法によると、未シール部は、フィルムの折返し部と補助シール部との間に形成される。このように、未シール部が、折返し部および補助シール部によって、閉塞した状態となり、この状態で、連続包装体は、温水とか熱水等の水または蒸気によって保温あるいは加熱される。したがって、この保温・加熱工程の際に、水分が未シール部内に入り込むことがない。もっとも、連続包装体は、フィルムの長手方向の各端において、未シール部が前記長手方向に開口していると、その開口から水分が侵入する虞があるため、このフィルムの長手方向の各端における未シール部を、シール等により閉じておくのが望ましい。そして、乾燥工程を経た後、後処理工程において、前記未シール部の少なくとも一部を、補助シール部側に残すようにして、その未シール部における、表側フィルムと裏側フィルムとの一方または両方を、切断し、あるいは切断可能に形成することで、食物包装体が製造される。したがって、この後処理工程によって、表側フィルムと裏側フィルムとの一方または両方が切断されれば、補助シール部に隣接した未シール部が開放することとなり、この未シール部における、表側フィルムと裏側フィルムとを摘んで互いに引き離すことで、補助シール部、さらには横シール部は、容易に開く。また、この後処理工程によって、表側フィルムと裏側フィルムとの一方または両方が切断可能に形成された場合には、その後に、その切断可能に形成された部分を切断することで、補助シール部に隣接した未シール部が開放することとなり、同様にして、この未シール部における、表側フィルムと裏側フィルムとを摘んで互いに引き離すことで、補助シール部、さらには横シール部は、容易に開く。
【００１２】
また、請求項６に記載の発明に係る食物包装体の製造方法は、食物が密封状態に包装されてなる食物包装体を製造する製造方法であって、次の工程を備える。〈第１形成工程〉長手方向に搬送されるフィルムを、表側と裏側との両側に位置するように配備することで、表側フィルムと裏側フィルムとを形成し、それら表側フィルムと裏側フィルムとの間に前記食物が充填される充填空間を形成すべく、それら表側フィルムと裏側フィルムとの開口する側端側を、前記長手方向にシールして、縦シール部を形成するとともに、前記表側フィルムと前記裏側フィルムとの中間部分を、前記長手方向に二条にシールして、一対の中間シール部を形成する。
〈充填工程〉前記フィルムに前記縦シール部が形成される前の、そのフィルムの側方開口部あるいは前記フィルムの搬送方向とは反対の方向に開口する後方開口部を通じて、前記食物を、前記一対の中間シール部によって隔てられた前記充填空間に充填する。
〈第２形成工程〉前記充填空間に充填された前記食物を前記長手方向に分離すべく、前記表側フィルムと前記裏側フィルムとを、横方向にシールして、横シール部を形成する。
〈保温・加熱工程〉前記第１形成工程、前記充填工程および前記第２形成工程によって形成される、前記食物が前記長手方向に分離されて密封状態となって並ぶ、連続包装体を、温水とか熱水等の水または蒸気によって保温あるいは加熱する。
〈乾燥工程〉その保温あるいは加熱が完了した前記連続包装体を乾燥させる。
〈後処理工程〉その乾燥した前記連続包装体において、前記一対の中間シール部の間の未シール部の中間部分における、前記表側フィルムと前記裏側フィルムとを、切断して、あるいは切断可能に形成して、前記食物包装体を製造する。
【００１３】
この製造方法によると、未シール部は、一対の中間シール部の間に形成される。このように、未シール部が、一対の中間シール部によって、閉塞した状態となり、この状態で、連続包装体は、温水とか熱水等の水または蒸気によって保温あるいは加熱される。したがって、この保温・加熱工程の際に、水分が未シール部内に入り込むことがない。もっとも、連続包装体は、フィルムの長手方向の各端において、未シール部が前記長手方向に開口していると、その開口から水分が侵入する虞があるため、このフィルムの長手方向の各端における未シール部を、シール等により閉じておくのが望ましい。そして、乾燥工程を経た後、後処理工程において、前記未シール部の中間部分における、表側フィルムと裏側フィルムとを、切断し、あるいは切断可能に形成することで、食物包装体が製造される。したがって、この後処理工程によって、表側フィルムと裏側フィルムとが切断されれば、中間シール部に隣接した未シール部が開放することとなり、この未シール部における、表側フィルムと裏側フィルムとを摘んで互いに引き離すことで、縦シール部、さらには横シール部は、容易に開く。また、この後処理工程によって、表側フィルムと裏側フィルムとが切断可能に形成された場合には、その後に、その切断可能に形成された部分を切断することで、中間シール部に隣接した未シール部が開放することとなり、同様にして、この未シール部における、表側フィルムと裏側フィルムとを摘んで互いに引き離すことで、中間シール部、さらには横シール部は、容易に開く。
【００１４】
また、請求項７に記載の発明に係る食物包装体の製造方法は、食物が密封状態に包装されてなる食物包装体を製造する製造方法であって、次の工程を備える。
〈第１形成工程〉長手方向に搬送されるフィルムを、表側と裏側との両側に位置するように配備することで、表側フィルムと裏側フィルムとを形成し、それら表側フィルムと裏側フィルムとの間に前記食物が充填される充填空間を形成すべく、それら表側フィルムと裏側フィルムとの開口する側端側を、前記長手方向にシールして、縦シール部を形成する。
〈充填工程〉前記フィルムに前記縦シール部が形成される前の、そのフィルムの側方開口部あるいは前記フィルムの搬送方向とは反対の方向に開口する後方開口部を通じて、前記食物を前記充填空間に充填する。
〈第２形成工程〉前記充填空間に充填された前記食物を前記長手方向に分離すべく、前記表側フィルムと前記裏側フィルムとを、横方向に二条にシールして、一対の横シール部を形成する。
〈保温・加熱工程〉前記第１形成工程、前記充填工程および前記第２形成工程によって形成される、前記食物が前記長手方向に分離されて密封状態となって並ぶ、連続包装体を、温水とか熱水等の水または蒸気によって保温あるいは加熱する。
〈乾燥工程〉その保温あるいは加熱が完了した前記連続包装体を乾燥させる。
〈後処理工程〉その乾燥した前記連続包装体において、前記一対の横シール部の間の未シール部の中間部分における、前記表側フィルムと前記裏側フィルムとを、切断して、あるいは切断可能に形成して、前記食物包装体を製造する。
【００１５】
この製造方法によると、未シール部は、一対の横シール部の間に形成される。このように、未シール部が、一対の横シール部によって、閉塞した状態となり、この状態で、連続包装体は、温水とか熱水等の水または蒸気によって保温あるいは加熱される。したがって、この保温・加熱工程の際に、水分が未シール部内に入り込むことがない。そして、乾燥工程を経た後、後処理工程において、前記未シール部の中間部分における、表側フィルムと裏側フィルムとを、切断し、あるいは切断可能に形成することで、食物包装体が製造される。したがって、この後処理工程によって、表側フィルムと裏側フィルムとが切断されれば、横シール部に隣接した未シール部が開放することとなり、この未シール部における、表側フィルムと裏側フィルムとを摘んで互いに引き離すことで、横シール部、さらには縦シール部は、容易に開く。また、この後処理工程によって、表側フィルムと裏側フィルムとが切断可能に形成された場合には、その後に、その切断可能に形成された部分を切断することで、横シール部に隣接した未シール部が開放することとなり、同様にして、この未シール部における、表側フィルムと裏側フィルムとを摘んで互いに引き離すことで、横シール部、さらには縦シール部は、容易に開く。
【００１６】
また、請求項８に記載の発明に係る食物の包装装置は、食物を密封状態に包装する包装装置であって、第１形成手段と、充填手段と、第２形成手段と、付加形成手段と、保温・加熱手段と、乾燥手段と、後処理手段とを備える。ここにおいて、第１形成手段は、長手方向に搬送されるフィルムを、表側と裏側との両側に位置するように配備することで、表側フィルムと裏側フィルムとを形成し、それら表側フィルムと裏側フィルムとの間に前記食物が充填される充填空間を形成すべく、それら表側フィルムと裏側フィルムとの開口する側端側を、前記長手方向にシールして、縦シール部を形成するものである。充填手段は、前記フィルムに前記縦シール部が形成される前の、そのフィルムの側方開口部あるいは前記フィルムの搬送方向とは反対の方向に開口する後方開口部を通じて、前記食物を前記充填空間に充填するものである。第２形成手段は、前記充填空間に充填された前記食物を前記長手方向に分離すべく、前記表側フィルムと前記裏側フィルムとを、横方向にシールして、横シール部を形成するものである。付加形成手段は、前記表側フィルムと前記裏側フィルムとの、前記縦シール部とは間隔を置いてさらに側端側となる端部部分を、前記長手方向にシールして、付加シール部を形成するものである。保温・加熱手段は、前記第１形成手段、前記充填手段、前記第２形成手段および前記付加形成手段によって形成される、前記食物が前記長手方向に分離されて密封状態となって並ぶ、連続包装体を、温水とか熱水等の水または蒸気によって保温あるいは加熱するものである。乾燥手段は、その保温あるいは加熱が完了した前記連続包装体を乾燥させるものである。そして、後処理手段は、その乾燥した前記連続包装体において、前記付加シール部と前記縦シール部との間の未シール部の少なくとも一部を、前記縦シール部側に残すようにして、その未シール部における、前記表側フィルムと前記裏側フィルムとの一方または両方を、切断する、あるいは切断可能に形成するものである。
【００１７】
この包装装置によると、未シール部は、フィルムの側端側の縦シール部と付加シール部との間に形成される。このように、未シール部が、付加シール部および縦シール部によって、閉塞した状態となり、この状態で、保温・加熱手段により、連続包装体は、温水とか熱水等の水または蒸気によって保温あるいは加熱される。したがって、この保温あるいは加熱の際に、水分が未シール部内に入り込むことがない。もっとも、連続包装体は、フィルムの長手方向の各端において、未シール部が前記長手方向に開口していると、その開口から水分が侵入する虞があるため、このフィルムの長手方向の各端における未シール部を、シール等により閉じておくのが望ましい。そして、乾燥を経た後、後処理手段により、前記未シール部の少なくとも一部を、縦シール部側に残すようにして、その未シール部における、表側フィルムと裏側フィルムとの一方または両方を、切断し、あるいは切断可能に形成する。したがって、この後処理手段によって、表側フィルムと裏側フィルムとの一方または両方が切断されれば、縦シール部に隣接した未シール部が開放することとなり、この未シール部における、表側フィルムと裏側フィルムとを摘んで互いに引き離すことで、縦シール部、さらには横シール部は、容易に開く。また、この後処理手段によって、表側フィルムと裏側フィルムとの一方または両方が切断可能に形成された場合には、その後に、その切断可能に形成された部分を切断することで、縦シール部に隣接した未シール部が開放することとなり、同様にして、この未シール部における、表側フィルムと裏側フィルムとを摘んで互いに引き離すことで、縦シール部、さらには横シール部は、容易に開く。
【００１８】
また、請求項９に記載の発明に係る食物の包装装置は、食物を密封状態に包装する包装装置であって、第１形成手段と、充填手段と、第２形成手段と、保温・加熱手段と、乾燥手段と、後処理手段とを備える。ここにおいて、第１形成手段は、長手方向に搬送されるフィルムを、その横方向に折り返すようにして表側と裏側との両側に位置するように配備することで、表側フィルムと裏側フィルムとを形成し、それら表側フィルムと裏側フィルムとの間に前記食物が充填される充填空間を形成すべく、それら表側フィルムと裏側フィルムとの開口する側端側を、前記長手方向にシールして、縦シール部を形成するとともに、前記表側フィルムと前記裏側フィルムとの、前記フィルムが折り返された折返し部側を、その折返し部とは間隔を置いて前記長手方向にシールして、補助シール部を形成するものである。充填手段は、前記フィルムに前記縦シール部が形成される前の、そのフィルムの側方開口部あるいは前記フィルムの搬送方向とは反対の方向に開口する後方開口部を通じて、前記食物を前記充填空間に充填するものである。第２形成手段は、前記充填空間に充填された前記食物を前記長手方向に分離すべく、前記表側フィルムと前記裏側フィルムとを、横方向にシールして、横シール部を形成するものである。保温・加熱手段は、前記第１形成手段、前記充填手段および前記第２形成手段によって形成される、前記食物が前記長手方向に分離されて密封状態となって並ぶ、連続包装体を、温水とか熱水等の水または蒸気によって保温あるいは加熱するものである。乾燥手段は、その保温あるいは加熱が完了した前記連続包装体を乾燥させるものである。そして、後処理手段は、その乾燥した前記連続包装体において、前記補助シール部と前記折返し部との間の未シール部の少なくとも一部を、前記補助シール部側に残すようにして、その未シール部における、前記表側フィルムと前記裏側フィルムとの一方または両方を、切断する、あるいは切断可能に形成するものである。
【００１９】
この包装装置によると、未シール部は、フィルムの折返し部と補助シール部との間に形成される。このように、未シール部が、折返し部および補助シール部によって、閉塞した状態となり、この状態で、保温・加熱手段により、連続包装体は、温水とか熱水等の水または蒸気によって保温あるいは加熱される。したがって、この保温あるいは加熱の際に、水分が未シール部内に入り込むことがない。もっとも、連続包装体は、フィルムの長手方向の各端において、未シール部が前記長手方向に開口していると、その開口から水分が侵入する虞があるため、このフィルムの長手方向の各端における未シール部を、シール等により閉じておくのが望ましい。そして、乾燥を経た後、後処理手段により、前記未シール部の少なくとも一部を、補助シール部側に残すようにして、その未シール部における、表側フィルムと裏側フィルムとの一方または両方を、切断し、あるいは切断可能に形成する。したがって、この後処理手段によって、表側フィルムと裏側フィルムとの一方または両方が切断されれば、補助シール部に隣接した未シール部が開放することとなり、この未シール部における、表側フィルムと裏側フィルムとを摘んで互いに引き離すことで、補助シール部、さらには横シール部は、容易に開く。また、この後処理手段によって、表側フィルムと裏側フィルムとの一方または両方が切断可能に形成された場合には、その後に、その切断可能に形成された部分を切断することで、補助シール部に隣接した未シール部が開放することとなり、同様にして、この未シール部における、表側フィルムと裏側フィルムとを摘んで互いに引き離すことで、補助シール部、さらには横シール部は、容易に開く。
【００２０】
また、請求項１０に記載の発明に係る食物の包装装置は、食物を密封状態に包装する包装装置であって、第１形成手段と、充填手段と、第２形成手段と、保温・加熱手段と、乾燥手段と、後処理手段とを備える。ここにおいて、第１形成手段は、長手方向に搬送されるフィルムを、表側と裏側との両側に位置するように配備することで、表側フィルムと裏側フィルムとを形成し、それら表側フィルムと裏側フィルムとの間に前記食物が充填される充填空間を形成すべく、それら表側フィルムと裏側フィルムとの開口する側端側を、前記長手方向にシールして、縦シール部を形成するとともに、前記表側フィルムと前記裏側フィルムとの中間部分を、前記長手方向に二条にシールして、一対の中間シール部を形成するものである。充填手段は、前記フィルムに前記縦シール部が形成される前の、そのフィルムの側方開口部あるいは前記フィルムの搬送方向とは反対の方向に開口する後方開口部を通じて、前記食物を、前記一対の中間シール部によって隔てられた前記充填空間に充填するものである。第２形成手段は、前記充填空間に充填された前記食物を前記長手方向に分離すべく、前記表側フィルムと前記裏側フィルムとを、横方向にシールして、横シール部を形成するものである。保温・加熱手段は、前記第１形成手段、前記充填手段および前記第２形成手段によって形成される、前記食物が前記長手方向に分離されて密封状態となって並ぶ、連続包装体を、温水とか熱水等の水または蒸気によって保温あるいは加熱するものである。乾燥手段は、その保温あるいは加熱が完了した前記連続包装体を乾燥させるものである。そして、後処理手段は、その乾燥した前記連続包装体において、前記一対の中間シール部の間の未シール部の中間部分における、前記表側フィルムと前記裏側フィルムとを、切断する、あるいは切断可能に形成するものである。
【００２１】
この包装装置によると、未シール部は、一対の中間シール部の間に形成される。このように、未シール部が、一対の中間シール部によって、閉塞した状態となり、この状態で、保温・加熱手段により、連続包装体は、温水とか熱水等の水または蒸気によって保温あるいは加熱される。したがって、この保温あるいは加熱の際に、水分が未シール部内に入り込むことがない。もっとも、連続包装体は、フィルムの長手方向の各端において、未シール部が前記長手方向に開口していると、その開口から水分が侵入する虞があるため、このフィルムの長手方向の各端における未シール部を、シール等により閉じておくのが望ましい。そして、乾燥を経た後、後処理手段により、前記未シール部の中間部分における、表側フィルムと裏側フィルムとを、切断し、あるいは切断可能に形成する。したがって、この後処理手段によって、表側フィルムと裏側フィルムとが切断されれば、中間シール部に隣接した未シール部が開放することとなり、この未シール部における、表側フィルムと裏側フィルムとを摘んで互いに引き離すことで、縦シール部、さらには横シール部は、容易に開く。また、この後処理手段によって、表側フィルムと裏側フィルムとが切断可能に形成された場合には、その後に、その切断可能に形成された部分を切断することで、中間シール部に隣接した未シール部が開放することとなり、同様にして、この未シール部における、表側フィルムと裏側フィルムとを摘んで互いに引き離すことで、中間シール部、さらには横シール部は、容易に開く。
【００２２】
また、請求項１１に記載の発明に係る食物の包装装置は、食物を密封状態に包装する包装装置であって、第１形成手段と、充填手段と、第２形成手段と、保温・加熱手段と、乾燥手段と、後処理手段とを備える。ここにおいて、第１形成手段は、長手方向に搬送されるフィルムを、表側と裏側との両側に位置するように配備することで、表側フィルムと裏側フィルムとを形成し、それら表側フィルムと裏側フィルムとの間に前記食物が充填される充填空間を形成すべく、それら表側フィルムと裏側フィルムとの開口する側端側を、前記長手方向にシールして、縦シール部を形成するものである。充填手段は、前記フィルムに前記縦シール部が形成される前の、そのフィルムの側方開口部あるいは前記フィルムの搬送方向とは反対の方向に開口する後方開口部を通じて、前記食物を前記充填空間に充填するものである。第２形成手段は、前記充填空間に充填された前記食物を前記長手方向に分離すべく、前記表側フィルムと前記裏側フィルムとを、横方向に二条にシールして、一対の横シール部を形成するものである。保温・加熱手段は、前記第１形成手段、前記充填手段および前記第２形成手段によって形成される、前記食物が前記長手方向に分離されて密封状態となって並ぶ、連続包装体を、温水とか熱水等の水または蒸気によって保温あるいは加熱するものである。乾燥手段は、その保温あるいは加熱が完了した前記連続包装体を乾燥させるものである。そして、後処理手段は、その乾燥した前記連続包装体において、前記一対の横シール部の間の未シール部の中間部分における、前記表側フィルムと前記裏側フィルムとを、切断する、あるいは切断可能に形成するものである。
【００２３】
この包装装置によると、未シール部は、一対の横シール部の間に形成される。このように、未シール部が、一対の横シール部によって、閉塞した状態となり、この状態で、保温・加熱手段により、連続包装体は、温水とか熱水等の水または蒸気によって保温あるいは加熱される。したがって、この保温あるいは加熱の際に、水分が未シール部内に入り込むことがない。そして、乾燥を経た後、後処理手段により、前記未シール部の中間部分における、表側フィルムと裏側フィルムとを、切断し、あるいは切断可能に形成する。したがって、この後処理手段によって、表側フィルムと裏側フィルムとが切断されれば、横シール部に隣接した未シール部が開放することとなり、この未シール部における、表側フィルムと裏側フィルムとを摘んで互いに引き離すことで、横シール部、さらには縦シール部は、容易に開く。また、この後処理手段によって、表側フィルムと裏側フィルムとが切断可能に形成された場合には、その後に、その切断可能に形成された部分を切断することで、横シール部に隣接した未シール部が開放することとなり、同様にして、この未シール部における、表側フィルムと裏側フィルムとを摘んで互いに引き離すことで、横シール部、さらには縦シール部は、容易に開く。
【００２４】
【発明の実施の形態】
以下、この発明に係る食物包装体の製造方法、および、食物の包装装置の実施の形態を図面に基づいて説明する。
【００２５】
図１ないし図８は、本発明に係る食物包装体の製造方法、および、食物の包装装置の一実施の形態を示す。図中符号１は、食物としての、ゼリー、かまぼこ、ハンバーグ等の食品である。２は、前記食物としの食品１を密封状態に包装する包装装置である。
【００２６】
この包装装置２は、第１形成手段３と、充填手段４と、第２形成手段５と、付加形成手段６と、保温・加熱手段と、乾燥手段と、後処理手段とからなる。第１形成手段３は、長手方向に搬送されるフィルム７を、表側と裏側との両側に位置するように配備することで、表側フィルム７ａと裏側フィルム７ｂとを形成し、それら表側フィルム７ａと裏側フィルム７ｂとの間に食品１が充填される充填空間Ｓを形成すべく、それら表側フィルム７ａと裏側フィルム７ｂとの開口する側端側を、フィルム７の長手方向にシールして、縦シール部７ｃを形成するものである。詳細には、第１形成手段３は、前記フィルム７を、横方向に折り返すように案内する案内部（図示せず）を有している。すなわち、フィルム７が、その横方向に折り返されることで、前記表側フィルム７ａと前記裏側フィルム７ｂとが形成される。また、第１形成手段３は、表側フィルム７ａと裏側フィルム７ｂとの開口する側端側を、フィルム７の長手方向にシール（詳細には、熱シール）して、縦シール部７ｃを形成する、第１ローラ８を有している。この第１ローラ８は、一対設けられており、各第１ローラ８に形成された第１押圧部８ａが、表側フィルム７ａおよび裏側フィルム７ｂの、縦シール部７ｃに相当する部分を、挟み込むようにして加圧かつ加熱する。この第１押圧部８ａは、第１ローラ８の周面を一周するように突出して形成されている。そして、第１ローラ８は、その軸心がフィルム７の搬送方向Ｐとは直交する向きとなって、フィルム７をその長手方向に搬送するように、Ｑ方向に回転する（図１参照）。なお、第１押圧部８ａは、後述する付加押圧部８ｂ側が、その付加押圧部８ｂに向かって凹凸状に波打つように形成されている。
【００２７】
充填手段４は、フィルム７に前記縦シール部７ｃが形成される前の、そのフィルム７の側方開口部Ｔあるいはフィルム７の搬送方向とは反対の方向に開口する後方開口部を通じて、食品１を前記充填空間Ｓに充填するものである。詳細には、充填手段４は、前記食品１を、充填空間Ｓまで搬送する搬送管９を有している。そして、図示実施の形態においては、搬送管９は、フィルム７の前記側方開口部Ｔから、表側フイルム７ａと裏側フィルム７ｂの間に入り、そして、下方に折れ曲がって、充填空間Ｓまで延びている。
【００２８】
第２形成手段５は、充填空間Ｓに充填された食品１を、フィルム７の長手方向に分離すべく、表側フィルム７ａと裏側フィルム７ｂとを、横方向にシールして、横シール部７ｄを形成するものである。詳細には、第２形成手段５は、表側フィルム７ａと裏側フィルム７ｂとを横方向にシール（詳細には、熱シール）する、第２ローラ１０を有している。この第２ローラ１０は、一対設けられており、各第２ローラ１０に形成された第２押圧部１０ａ、１０ａが、表側フィルム７ａおよび裏側フィルム７ｂの、横シール部７ｄに相当する部分を、挟み込むようにして加圧かつ加熱する。この第２押圧部１０ａは、第２ローラ１０の周面を横切るように突出して形成されている。そして、第２ローラ１０は、その軸心がフィルム７の搬送方向Ｐとは直交する向きとなってＲ方向に回転する（図１参照）。なお、第２押圧部１０ａは、第２ローラ１０の周面に二筋設けられているが、これは、第２押圧部１０ａ、１０ａのピッチが、横シール部７ｄ、７ｄのピッチと対応するように設けられることによる。したがって、この第２押圧部１０ａの本数と、第２ローラ１０における第２押圧部１０ａの先端面までの半径は、横シール部７ｄ、７ｄのピッチに応じて変る。もっとも、第２ローラ１０の回転速度を回転の途中で変化させれば、必ずしも前記ピッチを合わせる必要はない。
【００２９】
付加形成手段６は、表側フィルム７ａと裏側フィルム７ｂとの、前記縦シール部７ｃとは間隔を置いてさらに側端側となる端部部分を、フィルム７の長手方向にシール（詳細には、熱シール）して、付加シール部７ｅを形成するものである。図示実施の形態においては、前記第１ローラ８が、この付加形成手段６を兼ねている。すなわち、第１ローラ８に形成された付加押圧部８ｂが、表側フィルム７ａおよび裏側フィルム７ｂの、付加シール部７ｅに相当する部分を、挟み込むようにして加圧かつ加熱する。そして、この付加押圧部８ｂは、第１ローラ８の周面を一周するように突出して形成されている。
【００３０】
保温・加熱手段は、前記第１形成手段３、前記充填手段４、前記第２形成手段５および前記付加形成手段６によって、食品１がフィルム７の長手方向に分離されて密封状態となって並ぶ、連続包装体１１を、温水とか熱水等の水または蒸気によって保温あるいは加熱するものである。具体的には、前記連続包装体１１が、保温・加熱水槽内を通過することで、その連続包装体１１は、保温あるいは加熱される。そして、この保温あるいは加熱は、主に、食品１を殺菌する目的で行なわれるが、その他に、例えば、食品１を調理する目的で行なわれてもよい。
【００３１】
乾燥手段は、保温あるいは加熱が完了した前記連続包装体１１を乾燥させるものである。詳細には、この乾燥手段は、例えば、連続包装体１１に、冷風とか温風を吹き付ける送風機等からなる。
【００３２】
後処理手段は、乾燥した前記連続包装体１１において、付加シール部７ｅと縦シール部７ｃとの間の未シール部７ｆの少なくとも一部を、縦シール部７ｃ側に残すようにして、その未シール部７ｆにおける、表側フィルム７ａと裏側フィルム７ｂとの一方または両方を、切断する、あるいは切断可能に形成するものである。この後処理手段は、例えば、フィルム７を切断する刃具からなる。そして、この刃具によって、表側フィルム７ａと裏側フィルム７ｂとの一方または両方が、その全長に渡って切断されたり、また、フィルム７を切断可能に形成するために、例えば、断続的に切断されたり、半カット状に（すなわち、肉厚の一部を残して途中まで）切断されたりする。ここで、図７は、表側フィルム７ａと裏側フィルム７ｂとの一方、例えば表側フィルム７ａが切断された例を示しており、図８は、表側フィルム７ａと裏側フィルム７ｂとの両方が切断された例を示している。
【００３３】
次に、上記、第１形成手段３、充填手段４、第２形成手段５、付加形成手段６、保温・加熱手段、乾燥手段および後処理手段を用いた、食物包装体としての食品包装体１２の製造方法について説明する。この製造方法は、次の工程を備える。
〈第１形成工程〉前述の第１形成手段３を用いて、長手方向に搬送されるフィルム７を、表側と裏側との両側に位置するように配備することで、表側フィルム７ａと裏側フィルム７ｂとを形成し、それら表側フィルム７ａと裏側フィルム７ｂとの間に食品１が充填される充填空間Ｓを形成すべく、それら表側フィルム７ａと裏側フィルム７ｂとの開口する側端側を、フィルム７の長手方向にシールして、縦シール部７ｃを形成する。なお、図示実施の形態においては、表側フィルム７ａと裏側フィルム７ｂとは、フイルム７が、その横方向に折り返されて形成される。そして、縦シール部７ｃは、未シール部７ｆ側が、凹凸状に波打つように反復形成される。
〈充填工程〉前述の充填手段４を用いて、フィルム７に前記縦シール部７ｃが形成される前の、そのフィルム７の側方開口部Ｔあるいはフィルム７の搬送方向とは反対の方向に開口する後方開口部を通じて、食品１を前記充填空間Ｓに充填する。
〈第２形成工程〉前述の第２形成手段５を用いて、前記充填空間Ｓに充填された食品１をフィルム７の長手方向に分離すべく、表側フィルム７ａと裏側フィルム７ｂとを、横方向にシールして、横シール部７ｄを形成する。
〈付加形成工程〉前述の付加形成手段６を用いて、前記第１形成工程中あるいはそれ以降に行なわれる工程（図示実施の形態においては、第１形成工程中の縦シール部７ｃの形成と一緒に行なわれる工程）であって、表側フィルム７ａと裏側フィルム７ｂとの、前記縦シール部７ｃとは間隔を置いてさらに側端側となる端部部分を、フィルム７の長手方向にシールして、付加シール部７ｅを形成する。
〈保温・加熱工程〉前述の保温・加熱手段を用いて、前記第１形成工程、前記充填工程、前記第２形成工程および前記付加形成工程によって形成される、連続包装体１１を、温水とか熱水等の水または蒸気によって保温あるいは加熱する。
〈乾燥工程〉前述の乾燥手段を用いて、その保温あるいは加熱が完了した前記連続包装体１１を乾燥させる。
〈後処理工程〉前述の後処理手段を用いて、乾燥した連続包装体１１において、前記付加シール部７ｅと前記縦シール部７ｃとの間の未シール部７ｆの少なくとも一部を、縦シール部７ｃ側に残すようにして、その未シール部７ｆにおける、表側フィルム７ａと裏側フィルム７ｂとの一方または両方を、切断して、あるいは切断可能に形成して、食物包装体としての食品包装体１２を製造する。なお、図示実施の形態においては、表側フィルム７ａと裏側フィルム７ｂとの一方または両方を切断する（図７、図８参照）。
【００３４】
次に、以上の構成からなる食品包装体１２の製造方法、および、食品１の包装装置２の作用効果について説明する。この製造方法および包装装置２によると、未シール部７ｆは、フィルム７の側端側の縦シール部７ｃと付加シール部７ｅとの間に形成される。このように、未シール部７ｆが、付加シール部７ｅおよび縦シール部７ｃによって、閉塞した状態となり、この状態で、連続包装体１１は、保温・加熱手段により、温水とか熱水等の水または蒸気によって保温あるいは加熱される。したがって、この保温・加熱工程の際に、水分が未シール部７ｆ内に、すなわち、未シール部７ｆの表側フィルム７ａと裏側フィルム７ｂとの間に入り込むことがなく、その後の乾燥を確実かつ容易に行なうことができる。もっとも、連続包装体１１は、フィルム７の長手方向の各端において、未シール部７ｆが前記長手方向に開口していると、その開口から水分が侵入する虞があるため、保温・加熱工程よりも前の工程で、このフィルム７の長手方向の各端における未シール部７ｆを、シール等により閉じておくのが望ましい。
【００３５】
そして、乾燥工程を経た後、後処理工程において、後処理手段を用いて、前記未シール部７ｆの少なくとも一部を、縦シール部７ｃ側に残すようにして、その未シール部７ｆにおける、表側フィルム７ａと裏側フィルム７ｂとの一方または両方を、切断し、あるいは切断可能に形成することで、食品包装体１２が製造される。したがって、この後処理工程（後処理手段）によって、表側フィルム７ａと裏側フィルム７ｂとの一方または両方が切断されれば、縦シール部７ｃに隣接した未シール部７ｆが開放することとなり、この未シール部７ｆにおける、表側フィルム７ａと裏側フィルム７ｂとを摘んで互いに引き離すことで、縦シール部７ｃ、さらには横シール部７ｄは、容易に開き、中の食品１を簡単に取り出すことができる。また、この後処理工程（後処理手段）によって、表側フィルム７ａと裏側フィルム７ｂとの一方または両方が切断可能に形成された場合には、その後に、その切断可能に形成された部分を切断することで、縦シール部７ｃに隣接した未シール部７ｆが開放することとなり、同様にして、この未シール部７ｆにおける、表側フィルム７ａと裏側フィルム７ｂとを摘んで互いに引き離すことで、縦シール部７ｃ、さらには横シール部７ｄは、容易に開き、中の食品１を簡単に取り出すことができる。
【００３６】
しかも、縦シール部７ｃおよび横シール部７ｄを剥がす際には、未シール部７ｆにおいて、表側フィルム７ａと裏側フィルム７ｂとを摘んで互いに引き離すと、縦シール部７ｃにおける未シール部７ｆ側の凹凸状に反復形成された凸部の先端から順に開くこととなり、この縦シール部７ｃおよび横シール部７ｄは、一層容易に開き、中の食物を一層簡単に取り出すことができる。
【００３７】
また、後処理工程（後処理手段）において、表側フィルム７ａと裏側フィルム７ｂとの一方を、切断し、あるいは切断可能に形成した場合には、未シール部７ｆにおける、表側フィルム７ａと裏側フィルム７ｂとを摘んで互いに引き離す際に、切断されなかった側のフィルム（表側フィルム７ａまたは裏側フィルム７ｂ）に残された付加シール部７ｅ部分に指を掛けることで、未シール部７ｆを簡単に開くことができる（図７参照）。
【００３８】
また、付加形成工程、すなわち、付加シール部７ｅの形成を、縦シール部７ｃの形成と一緒に行なうことで、全体の工程および包装装置２の構造を簡略化することができる。
【００３９】
なお、本発明は、上述した実施の形態に限定されるわけではなく、その他種々の変更が可能である。例えば、第１の変形例として、第１形成工程（第１形成手段３）において、フィルム７を横方向に折り返すことで、表側フィルム７ａと裏側フィルム７ｂとを形成しなくとも、図９および図１０に示すように、表側フィルム７ａと裏側フィルム７ｂとを、別々のフィルムで形成していもよい。そして、この変形例においては、未シール部７ｆおよび付加シール部７ｅは、表側フィルム７ａおよび裏側フィルム７ｂの両側部に形成されるが、一方のみに形成されてもよい。また、未シール部７ｆにおいて、表側フィルム７ａと裏側フィルム７ｂとの一方が切断されるが（図１０参照）、その両方が切断されてもよいのは勿論である。
【００４０】
また、第２の変形例として、付加形成工程（付加形成手段６）を無くし、替わりに、第１形成工程（第１形成手段３）において、図１１および図１２に示すように、縦シール部７ｃの形成に加えて、表側フィルム７ａと裏側フィルム７ｂとの、フィルム７が折り返された折返し部７ｇ側を、その折返し部７ｇとは間隔を置いてフィルム７の長手方向にシール（詳細には、熱シール）して、補助シール部７ｈを形成するようにしてもよい。もっとも、これら縦シール部７ｃの形成と補助シール部７ｈの形成とは、一緒に行なってもよく、また、いずれか一方を先に行なうというように、ずらして行なってもよい。そして、後処理工程（後処理手段）においては、補助シール部７ｈと折返し部７ｇとの間の未シール部７ｆにおける、表側フィルム７ａと裏側フィルム７ｂとの一方または両方を、切断して、あるいは切断可能に形成して、食物包装体としての食品包装体１２を製造する。ところで、図１２は、表側フィルム７ａと裏側フィルム７ｂとの一方、例えば表側フィルム７ａが切断された例を示しているが、両方が切断されてもよい。そして、この後処理工程（後処理手段）において、表側フィルム７ａと裏側フィルム７ｂとの一方を、切断し、あるいは切断可能に形成した場合には、未シール部７ｆにおける、表側フィルム７ａと裏側フィルム７ｂとを摘んで互いに引き離す際に、切断されなかった側のフィルム（表側フィルム７ａまたは裏側フィルム７ｂ）に残された折返し部７ｇ部分に指を掛けることで、未シール部７ｆを簡単に開くことができる。
【００４１】
また、第３の変形例として、付加形成工程（付加形成手段６）を無くし、替わりに、第１形成工程（第１形成手段３）において、縦シール部７ｃの形成に加えて、図１３および図１４に示すように、表側フィルム７ａと裏側フィルム７ｂとの横方向の中間部分を、フィルム７の長手方向に、二条にシール（詳細には、熱シール）して、一対の中間シール部７ｉ、７ｉを形成するようにしてもよい。もっとも、これら縦シール部７ｃの形成と中間シール部７ｉ、７ｉの形成とは、一緒に行なってもよく、また、いずれ一方を先に行なうというように、ずらして行なってもよい。そして、後処理工程（後処理手段）においては、一対の中間シール部７ｉ、７ｉの間の未シール部７ｆの横方向の中間部分における、表側フィルム７ａと裏側フィルム７ｂとを、切断して、あるいは切断可能に形成して、食物包装体としての食品包装体１２を製造する。ここにおいて、表側フィルム７ａと裏側フィルム７ｂとの、切断する部分、あるいは切断可能に形成する部分は、表側フィルム７ａと裏側フィルム７ｂとで、同一位置であってもよいが（図１４参照）、ずれた位置であってもよい。
【００４２】
また、第４の変形例として、付加形成工程（付加形成手段６）を無くし、替わりに、第２形成工程（第２形成手段５）において、図１５および図１６に示すように、充填空間Ｓに充填された食品１をフィルム７の長手方向に分離すべく、表側フィルム７ａと裏側フィルム７ｂとを、横方向に、二条にシール（詳細には、熱シール）して、一対の横シール部７ｊ、７ｊを形成するようにしてもよい。そして、後処理工程（後処理手段）においては、一対の横シール部７ｊ、７ｊの間の未シール部７ｆの中間部分における、表側フィルム７ａと裏側フィルム７ｂとを、切断して、あるいは切断可能に形成して、食物包装体としての食品包装体１２を製造する。ここにおいて、表側フィルム７ａと裏側フィルム７ｂとの、切断する部分、あるいは切断可能に形成する部分は、表側フィルム７ａと裏側フィルム７ｂとで、同一位置であってもよいが（図１６参照）、ずれた位置であってもよい。
【００４３】
また、前述の一実施の形態および第１ないし第４の変形例を元にして、それらの各構成を、適宜組み合わせることができるのは勿論である。
【００４４】
また、以上に示す製造方法あるいは包装装置２において、保温・加熱工程（保温・加熱手段）と乾燥工程（乾燥手段）との間に、冷却工程（冷却手段）を設けたり、また、前記第４の変形例を除き、後処理工程（後処理手段）の後に、連続包装体１１を個々の食品包装体１２とするために、横シール部７ｄ部分を、切断する、あるいは切断可能に形成する分離工程（分離手段）を設ける等、他の工程（手段）が加わってもよい。
【００４５】
また、食品１は、食品包装体１２となった段階で、固形状態にあるのが好ましいが、この固形状態は、常温で達成されなくとも、シャーベット等の冷凍品のように、冷凍された状態で固形状態となっていてもよい。また、食物は、人が食べる食品１に限定されるものではなく、ペットフード等の飼料のように、動物の餌となるもの等であってもよい。
【００４６】
【発明の効果】
以上、詳述したところから明らかなように、この発明に係る食物包装体の製造方法、および、食物の包装装置によれば、次の効果がある。
【００４７】
請求項１および２に記載された食物包装体の製造方法、並びに、請求項８に記載された食物の包装装置によれば、熱水等による保温あるいは加熱の際には、未シール部は、付加シール部および縦シール部によって閉塞した状態となっており、熱水等の水分が未シール部内に入り込む虞がなく、その後の乾燥を確実かつ容易に行なうことができる。そして、縦シール部および横シール部を剥がす際には、開放した未シール部における、表側フィルムと裏側フィルムとを摘んで互いに引き離すことで、縦シール部および横シール部は、容易に開き、中の食物を簡単に取り出すことができる。
【００４８】
また、請求項３に記載された食物包装体の製造方法によれば、請求項１または２の効果に加えて、付加シール部の形成を、縦シール部の形成と一緒に行なうことで、全体の工程を簡略化することができる。
【００４９】
また、請求項４に記載された食物包装体の製造方法によれば、請求項１ないし３のいずれか１項の効果に加えて、縦シール部は、その未シール部側が凹凸状に反復形成されているので、縦シール部および横シール部を剥がす際に、開放した未シール部における、表側フィルムと裏側フィルムとを摘んで互いに引き離すことで、縦シール部および横シール部は、一層容易に開き、中の食物を一層簡単に取り出すことができる。
【００５０】
また、請求項５に記載された食物包装体の製造方法、および、請求項９に記載された食物の包装装置によれば、熱水等による保温あるいは加熱の際には、未シール部は、折返し部および補助シール部によって閉塞した状態となっており、熱水等の水分が未シール部内に入り込む虞がなく、その後の乾燥を確実かつ容易に行なうことができる。そして、補助シール部および横シール部を剥がす際には、開放した未シール部における、表側フィルムと裏側フィルムとを摘んで互いに引き離すことで、補助シール部および横シール部は、容易に開き、中の食物を簡単に取り出すことができる。
【００５１】
また、請求項６に記載された食物包装体の製造方法、および、請求項１０に記載された食物の包装装置によれば、熱水等による保温あるいは加熱の際には、未シール部は、一対の中間シール部によって閉塞した状態となっており、熱水等の水分が未シール部内に入り込む虞がなく、その後の乾燥を確実かつ容易に行なうことができる。そして、中間シール部および横シール部を剥がす際には、開放した未シール部における、表側フィルムと裏側フィルムとを摘んで互いに引き離すことで、中間シール部および横シール部は、容易に開き、中の食物を簡単に取り出すことができる。
【００５２】
また、請求項７に記載された食物包装体の製造方法、および、請求項１１に記載された食物の包装装置によれば、熱水等による保温あるいは加熱の際には、未シール部は、一対の横シール部によって閉塞した状態となっており、熱水等の水分が未シール部内に入り込む虞がなく、その後の乾燥を確実かつ容易に行なうことができる。そして、横シール部および縦シール部を剥がす際には、開放した未シール部における、表側フィルムと裏側フィルムとを摘んで互いに引き離すことで、横シール部および縦シール部は、容易に開き、中の食物を簡単に取り出すことができる。
【図面の簡単な説明】
【図１】この発明に係る食物包装体の製造方法、および、食物の包装装置の、一実施の形態の、側面図である。
【図２】同じく、第１ローラの斜視図である。
【図３】同じく、第２ローラの斜視図である。
【図４】同じく、図１におけるＡ−Ａ線による部分断面図である。
【図５】同じく、図１におけるＢ−Ｂ線による拡大断面図である。
【図６】同じく、図５におけるＣ−Ｃ線による断面図である。
【図７】同じく、後処理工程後を示す横断面図である。
【図８】同じく、後処理工程後の他の例を示す横断面図である。
【図９】この発明に係る食物包装体の製造方法、および、食物の包装装置の、第１の変形例を示す、横断面図である。
【図１０】同じく、後処理工程後を示す横断面図である。
【図１１】この発明に係る食物包装体の製造方法、および、食物の包装装置の、第２の変形例を示す、横断面図である。
【図１２】同じく、後処理工程後を示す横断面図である。
【図１３】この発明に係る食物包装体の製造方法、および、食物の包装装置の、第３の変形例を示す、横断面図である。
【図１４】同じく、後処理工程後を示す横断面図である。
【図１５】この発明に係る食物包装体の製造方法、および、食物の包装装置の、第４の変形例を示す、縦断面図である。
【図１６】同じく、後処理工程後を示す縦断面図である。
【図１７】従来の食物包装体を示す断面図である。
【符号の説明】
１食品（食物）２包装装置
３第１形成手段４充填手段
５第２形成手段６付加形成手段
７フィルム７ａ表側フィルム
７ｂ裏側フィルム７ｃ縦シール部
７ｄ横シール部７ｅ付加シール部
７ｆ未シール部７ｇ折返し部
７ｈ補助シール部７ｉ中間シール部
７ｊ横シール部
１１連続包装体１２食品包装体（食物包装体）
Ｓ充填空間Ｔ側方開口部
Ｐ搬送方向[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a method for manufacturing a food package in which food is packaged in a sealed state, and a food packaging apparatus for packaging food in a sealed state.
[0002]
[Prior art]
Conventionally, as a food package in which food such as jelly is packaged in a sealed state, for example, there is a food package shown in FIG. In the food package 21, the film 22 was folded to form the front film 22a and the back film 22b, and the three sides except the folded portion 22c were sealed. And the food 23 was filled in the filling space surrounded by the film 22. Further, in the food package 21, a seal portion 22d facing the folded portion 22c is provided at a position slightly away from the front end of the film 22, and an unsealed portion 22e is provided at the front end portion of the film 22. Was left. The unsealed portion 22e is provided for convenience when taking out the food 23 inside, and the seal portion 22d can be easily formed by grasping the film 22 of the unsealed portion 22e and separating them from each other. Was able to open.
[0003]
[Problems to be solved by the invention]
Meanwhile, in the conventional food package 21, the food package 21 may be heated by, for example, hot water for sterilization or the like. In this case, the food package 21 is dried in order to remove moisture attached to the food package 21. However, even if the moisture attached to the surface of the food package 21 is removed, the moisture that has entered the unsealed portion 22e, that is, has entered between the front film 22a and the back film 22b of the unsealed portion 22e. The water was not easily removed and was difficult to remove.
[0004]
The present invention has been made in order to solve the above-described conventional disadvantages, and has an object to prevent water from entering into an unsealed portion during heat retention or heating with hot water or the like. An object of the present invention is to provide a method of manufacturing a food package and a food packaging apparatus that can reliably and easily dry.
[0005]
[Means for Solving the Problems]
A method of manufacturing a food package and a food packaging apparatus according to the present invention have the following configurations to achieve the above object. That is,
A method of manufacturing a food package according to the first aspect of the present invention is a method of manufacturing a food package in which food is packaged in a sealed state, and includes the following steps.
<First Forming Step> By arranging the film conveyed in the longitudinal direction so as to be positioned on both sides of the front side and the back side, a front side film and a back side film are formed, and between the front side film and the back side film. In order to form a filling space in which the food is filled, the open side ends of the front film and the back film are sealed in the longitudinal direction to form a vertical seal portion.
<Filling step> Before the vertical sealing portion is formed on the film, the food is filled in the filling space through a side opening of the film or a rear opening that opens in a direction opposite to a transport direction of the film. Fill.
<Second Forming Step> In order to separate the food filled in the filling space in the longitudinal direction, the front film and the back film are horizontally sealed to form a horizontal seal portion.
<Additional forming step> An end part of the front side film and the back side film, which is a step which is performed during or after the first forming step and which is further on the side end side with an interval from the vertical seal portion. The portion is sealed in the longitudinal direction to form an additional seal.
<Warming / heating step> Continuous packaging, wherein the foods formed by the first forming step, the filling step, the second forming step, and the additional forming step are separated in the longitudinal direction and lined up in a sealed state. The body is kept warm or heated by water or steam such as hot or hot water.
<Drying Step> The continuous package having been kept warm or heated is dried. <Post-processing step> In the dried continuous package, at least a part of the unsealed portion between the additional seal portion and the vertical seal portion is left on the side of the vertical seal portion so that the unsealed portion is left unsealed. One or both of the front-side film and the back-side film in the part are cut or formed so as to be cuttable, thereby manufacturing the food package.
[0006]
According to this manufacturing method, the unseal portion is formed between the vertical seal portion on the side end side of the film and the additional seal portion. As described above, the unsealed portion is closed by the additional seal portion and the vertical seal portion, and in this state, the continuous package is kept warm or heated by water or steam such as hot water or hot water. Therefore, during the heat keeping / heating step, moisture does not enter the unsealed portion. However, if the unsealed portion is open in the longitudinal direction at each end of the film in the longitudinal direction, there is a possibility that moisture may enter from the opening. Is desirably closed by a seal or the like. Then, after passing through a drying step, in a post-processing step, at least a part of the unsealed portion is left on the vertical sealed portion side, and in the unsealed portion, one or both of the front film and the back film are removed. The food package is manufactured by cutting, or cutting or forming the food package. Therefore, if one or both of the front film and the back film are cut by this post-processing step, the unsealed portion adjacent to the vertical seal portion will be opened, and the front film and the back film in this unsealed portion will be opened. The vertical seal portion and the horizontal seal portion can be easily opened by picking up and separating each other. In the case where one or both of the front film and the back film are formed so as to be cuttable by this post-processing step, then, by cutting the cuttable portion, the vertical seal portion is formed. The adjacent unsealed portion is opened. Similarly, the vertical sealing portion and the horizontal sealing portion in the unsealed portion can be easily opened by picking the front side film and the back side film apart from each other.
[0007]
Further, as in the method for manufacturing a food package according to the invention according to claim 2, in the first forming step in the manufacturing method according to claim 1, the front-side film and the back-side film are formed as follows. May be formed by folding back in the lateral direction.
[0008]
Further, as in the method for manufacturing a food package according to the invention according to claim 3, in the manufacturing method according to claim 1 or 2, the additional forming step includes the step of forming the vertical seal portion in the first forming step. It may be performed together with the formation. As described above, by performing the additional formation step, that is, the formation of the additional seal portion together with the formation of the vertical seal portion, the entire process is simplified.
[0009]
Further, as in the method for manufacturing a food package according to the invention according to claim 4, in the manufacturing method according to any one of claims 1 to 3, the vertical seal portion adjacent to the unsealed portion is The unsealed portion side may be repeatedly formed in an uneven shape. Thereby, when peeling the vertical seal portion and the horizontal seal portion, in the unsealed portion, when the front side film and the back side film were picked and separated from each other, they were repeatedly formed in the uneven shape on the unsealed portion side in the vertical seal portion. The vertical seals and the horizontal seals are more easily opened from the tip of the convex part.
[0010]
A method of manufacturing a food package according to the invention of claim 5 is a method of manufacturing a food package in which food is packaged in a sealed state, and includes the following steps.
<First forming step> The front-side film and the back-side film are formed by arranging the film conveyed in the longitudinal direction so as to be folded in the lateral direction and positioned on both sides of the front side and the back side. In order to form a filling space in which the food is filled between the front film and the back film, the opening side ends of the front film and the back film are sealed in the longitudinal direction to form a vertical seal portion. At the same time, the folded portion of the front film and the back film on which the film is folded is sealed in the longitudinal direction at an interval from the folded portion to form an auxiliary seal portion.
<Filling step> Before the vertical sealing portion is formed on the film, the food is filled in the filling space through a side opening of the film or a rear opening that opens in a direction opposite to a transport direction of the film. Fill.
<Second Forming Step> In order to separate the food filled in the filling space in the longitudinal direction, the front film and the back film are horizontally sealed to form a horizontal seal portion.
<Warming / heating step> The continuous food package formed by the first forming step, the filling step, and the second forming step, wherein the foods are separated in the longitudinal direction and lined up in a sealed state, such as hot water, Heating or heating with water or steam such as hot water.
<Drying Step> The continuous package having been kept warm or heated is dried. <Post-processing step> In the dried continuous package, at least a part of the unsealed portion between the auxiliary seal portion and the folded portion is left on the auxiliary seal portion side, so that the unsealed portion is , One or both of the front-side film and the back-side film are cut or formed so as to be cut, to produce the food package.
[0011]
According to this manufacturing method, the unseal portion is formed between the folded portion of the film and the auxiliary seal portion. As described above, the unsealed portion is closed by the folded portion and the auxiliary seal portion. In this state, the continuous package is kept warm or heated by water or steam such as hot water or hot water. Therefore, during the heat keeping / heating step, moisture does not enter the unsealed portion. However, if the unsealed portion is open in the longitudinal direction at each end of the film in the longitudinal direction, there is a possibility that moisture may enter from the opening. Is desirably closed by a seal or the like. Then, after a drying step, in a post-processing step, at least a part of the unsealed portion is left on the auxiliary sealing portion side, and in the unsealed portion, one or both of the front film and the back film are removed. The food package is manufactured by cutting, or cutting or forming the food package. Therefore, if one or both of the front film and the back film are cut by this post-processing step, the unsealed portion adjacent to the auxiliary seal portion is opened, and the front film and the back film in this unsealed portion are opened. The auxiliary seal portion and the horizontal seal portion can be easily opened by picking up and pulling each other apart. In addition, when one or both of the front film and the back film are formed to be cuttable by this post-processing step, then, by cutting the cuttable portion, the auxiliary seal portion is formed. The adjacent unsealed portion is opened, and similarly, in the unsealed portion, the front-side film and the back-side film are pinched and separated from each other, whereby the auxiliary seal portion and the horizontal seal portion are easily opened.
[0012]
A method of manufacturing a food package according to the invention of claim 6 is a method of manufacturing a food package in which food is packaged in a sealed state, and includes the following steps. <First Forming Step> By arranging the film conveyed in the longitudinal direction so as to be positioned on both sides of the front side and the back side, a front side film and a back side film are formed, and between the front side film and the back side film. In order to form a filling space in which the food is filled, the opening side ends of the front film and the back film are sealed in the longitudinal direction to form a vertical seal portion, and the front film and the front film are formed. An intermediate portion with the back side film is sealed in two lines in the longitudinal direction to form a pair of intermediate seal portions.
<Filling step> Before the vertical sealing portion is formed on the film, the food is passed through a side opening portion of the film or a rear opening portion opening in a direction opposite to a direction in which the film is conveyed. Is filled in the filling space separated by the intermediate seal part.
<Second Forming Step> In order to separate the food filled in the filling space in the longitudinal direction, the front film and the back film are horizontally sealed to form a horizontal seal portion.
<Warming / heating step> The continuous food package formed by the first forming step, the filling step, and the second forming step, wherein the foods are separated in the longitudinal direction and lined up in a sealed state, such as hot water, Heating or heating with water or steam such as hot water.
<Drying Step> The continuous package having been kept warm or heated is dried.
<Post-processing step> In the dried continuous package, the front side film and the back side film in the middle portion of the unsealed portion between the pair of middle sealed portions are cut or formed so as to be cuttable. Then, the food package is manufactured.
[0013]
According to this manufacturing method, the unsealed portion is formed between the pair of intermediate sealed portions. As described above, the unsealed portion is closed by the pair of intermediate seal portions. In this state, the continuous package is kept warm or heated by water or steam such as hot water or hot water. Therefore, during the heat keeping / heating step, moisture does not enter the unsealed portion. However, if the unsealed portion is open in the longitudinal direction at each end of the film in the longitudinal direction, there is a possibility that moisture may enter from the opening. Is desirably closed by a seal or the like. Then, after the drying step, in the post-processing step, the front side film and the back side film in the middle part of the unsealed portion are cut or formed so as to be cut, whereby the food package is manufactured. Therefore, if the front side film and the back side film are cut by this post-processing step, the unsealed portion adjacent to the intermediate sealed portion is opened, and the front side film and the back side film in the unsealed portion are pinched. By separating them from each other, the vertical seal portion and further the horizontal seal portion are easily opened. In addition, when the front side film and the back side film are formed to be cuttable by this post-processing step, the unsealed portion adjacent to the intermediate seal portion is thereafter cut by cutting the cuttable portion. The part is opened, and similarly, in the unsealed part, the front side film and the back side film are pinched and separated from each other, whereby the intermediate seal part and the horizontal seal part are easily opened.
[0014]
A method of manufacturing a food package according to the invention according to claim 7 is a method of manufacturing a food package in which food is packaged in a sealed state, and includes the following steps.
<First Forming Step> By arranging the film conveyed in the longitudinal direction so as to be positioned on both sides of the front side and the back side, a front side film and a back side film are formed, and between the front side film and the back side film. In order to form a filling space in which the food is filled, the open side ends of the front film and the back film are sealed in the longitudinal direction to form a vertical seal portion.
<Filling step> Before the vertical sealing portion is formed on the film, the food is filled in the filling space through a side opening of the film or a rear opening that opens in a direction opposite to a transport direction of the film. Fill.
<Second forming step> In order to separate the food filled in the filling space in the longitudinal direction, the front side film and the back side film are horizontally sealed in two lines to form a pair of horizontal seal portions. I do.
<Warming / heating step> The continuous food package formed by the first forming step, the filling step, and the second forming step, wherein the foods are separated in the longitudinal direction and lined up in a sealed state, such as hot water, Heating or heating with water or steam such as hot water.
<Drying Step> The continuous package having been kept warm or heated is dried.
<Post-processing step> In the dried continuous package, the front side film and the back side film in the middle part of the unsealed part between the pair of horizontal sealed parts are cut or formed so as to be cuttable. Then, the food package is manufactured.
[0015]
According to this manufacturing method, the unsealed portion is formed between the pair of horizontal sealed portions. As described above, the unsealed portion is closed by the pair of horizontal seal portions, and in this state, the continuous package is kept warm or heated by water or steam such as hot water or hot water. Therefore, during the heat keeping / heating step, moisture does not enter the unsealed portion. Then, after the drying step, in the post-processing step, the front side film and the back side film in the middle part of the unsealed portion are cut or formed so as to be cut, whereby the food package is manufactured. Therefore, if the front side film and the back side film are cut by this post-processing step, the unsealed part adjacent to the horizontal seal part will be opened, and the front side film and the back side film in this unsealed part will be pinched. By pulling them apart, the horizontal seal and even the vertical seal are easily opened. In addition, when the front side film and the back side film are formed so as to be cuttable by this post-processing step, then, by cutting the portion formed so as to be cuttable, the unsealed portion adjacent to the horizontal seal portion is cut. The part is opened, and similarly, in the unsealed part, the front-side film and the back-side film are pinched and separated from each other, so that the horizontal seal part and the vertical seal part can be easily opened.
[0016]
The food packaging device according to the invention of claim 8 is a packaging device for packaging food in a sealed state, wherein the first packaging device, the filling device, the second packaging device, and the additional packaging device include: , A heat retaining / heating means, a drying means, and a post-processing means. Here, the first forming means arranges the film conveyed in the longitudinal direction so as to be positioned on both sides of the front side and the back side to form a front side film and a back side film, and the front side film and the back side film are formed. In order to form a filling space in which the food is filled, the open side ends of the front film and the back film are sealed in the longitudinal direction to form a vertical seal portion. The filling means fills the food with the filling space through a side opening of the film or a rear opening that opens in a direction opposite to a transport direction of the film before the vertical sealing portion is formed in the film. Is to be filled. The second forming means seals the front film and the back film in a lateral direction so as to separate the food filled in the filling space in the longitudinal direction, thereby forming a horizontal seal portion. . The additional forming means seals an end portion of the front side film and the back side film, which is further spaced from the vertical seal portion and is on the side end side, in the longitudinal direction to form an additional seal portion. Things. The heat retaining / heating means is formed by the first forming means, the filling means, the second forming means, and the additional forming means, wherein the food is separated in the longitudinal direction and arranged in a sealed state, and is continuously packed. The body is kept warm or heated by water or steam such as hot water or hot water. The drying means is for drying the continuous package after the heat retention or heating is completed. Then, the post-processing means, in the dried continuous package, at least a part of the unsealed portion between the additional seal portion and the vertical seal portion, so as to leave on the vertical seal portion side, In the unsealed portion, one or both of the front film and the back film are cut or formed so as to be cut.
[0017]
According to this packaging device, the unseal portion is formed between the vertical seal portion on the side end of the film and the additional seal portion. In this way, the unsealed portion is closed by the additional seal portion and the vertical seal portion, and in this state, the continuous package is kept warm or heated by water or steam such as hot water or hot water by the heat keeping / heating means. Heated. Therefore, water does not enter the unsealed portion during the heat retention or heating. However, if the unsealed portion is open in the longitudinal direction at each end of the film in the longitudinal direction, there is a possibility that moisture may enter from the opening. Is desirably closed by a seal or the like. Then, after drying, at least a part of the unsealed portion is left by the post-processing means on the side of the vertical sealed portion, and in the unsealed portion, one or both of the front film and the back film, It is cut or formed so as to be cut. Therefore, if one or both of the front film and the back film are cut by the post-processing means, the unsealed portion adjacent to the vertical seal portion is opened, and the front film and the back film in this unsealed portion are opened. The vertical seal portion and the horizontal seal portion can be easily opened by picking up and separating each other. Also, when one or both of the front film and the back film are formed to be cuttable by the post-processing means, then, by cutting the cuttable portion, the vertical seal portion is formed. The adjacent unsealed portion is opened. Similarly, the vertical sealing portion and the horizontal sealing portion in the unsealed portion can be easily opened by picking the front side film and the back side film apart from each other.
[0018]
The food packaging apparatus according to the ninth aspect of the present invention is a packaging apparatus for packaging food in a sealed state, wherein a first forming means, a filling means, a second forming means, and a heat retaining / heating means are provided. And a drying unit and a post-processing unit. Here, the first forming means forms the front side film and the back side film by arranging the film conveyed in the longitudinal direction so as to be folded in the lateral direction so as to be positioned on both sides of the front side and the back side. In order to form a filling space between the front film and the back film in which the food is filled, the open side ends of the front film and the back film are sealed in the longitudinal direction, and a vertical seal is formed. A part is formed, and the folded part side of the front film and the back film where the film is folded is sealed in the longitudinal direction at an interval from the folded part to form an auxiliary seal part. Things. The filling means fills the food with the filling space through a side opening of the film or a rear opening that opens in a direction opposite to a transport direction of the film before the vertical sealing portion is formed in the film. Is to be filled. The second forming means seals the front film and the back film in a lateral direction so as to separate the food filled in the filling space in the longitudinal direction, thereby forming a horizontal seal portion. . The heat retaining / heating means may include a continuous package formed by the first forming means, the filling means, and the second forming means, wherein the food is separated in the longitudinal direction and arranged in a sealed state. It is kept warm or heated by water such as hot water or steam. The drying means is for drying the continuous package after the heat retention or heating is completed. Then, the post-processing means leaves at least a part of the unsealed portion between the auxiliary seal portion and the folded portion on the side of the auxiliary seal portion in the dried continuous package body. One or both of the front film and the back film in the seal portion are cut or formed so as to be cut.
[0019]
According to this packaging device, the unsealed portion is formed between the folded portion of the film and the auxiliary sealed portion. As described above, the unsealed portion is closed by the folded portion and the auxiliary seal portion, and in this state, the continuous package is heated or heated by water or steam such as warm water or hot water by the warming / heating means. Is done. Therefore, water does not enter the unsealed portion during the heat retention or heating. However, if the unsealed portion is open in the longitudinal direction at each end of the film in the longitudinal direction, there is a possibility that moisture may enter from the opening. Is desirably closed by a seal or the like. Then, after drying, by the post-processing means, at least a part of the unsealed portion is left on the auxiliary seal portion side, in the unsealed portion, one or both of the front film and the back film, It is cut or formed so as to be cut. Therefore, if one or both of the front film and the back film are cut by the post-processing means, the unsealed portion adjacent to the auxiliary seal portion is opened, and the front film and the back film in the unsealed portion are opened. The auxiliary seal portion and the horizontal seal portion can be easily opened by picking up and pulling each other apart. Further, when one or both of the front film and the back film are formed so as to be cuttable by the post-processing means, then, the cutable portion is cut to form the auxiliary seal portion. The adjacent unsealed portion is opened, and similarly, in the unsealed portion, the front-side film and the back-side film are pinched and separated from each other, whereby the auxiliary seal portion and the horizontal seal portion are easily opened.
[0020]
A food packaging apparatus according to a tenth aspect of the present invention is a packaging apparatus for packaging food in a sealed state, comprising: a first forming unit, a filling unit, a second forming unit, and a heat retaining / heating unit. And a drying unit and a post-processing unit. Here, the first forming means arranges the film conveyed in the longitudinal direction so as to be positioned on both sides of the front side and the back side to form a front side film and a back side film, and the front side film and the back side film are formed. In order to form a filling space in which the food is filled between the front side film and the back side film, the open side end side is sealed in the longitudinal direction to form a vertical seal portion, and the front side is formed. An intermediate portion between the film and the back side film is double-sealed in the longitudinal direction to form a pair of intermediate seal portions. Filling means, before the longitudinal seal portion is formed in the film, through the side opening of the film or a rear opening opening in a direction opposite to the transport direction of the film, the food, the pair of foods In the filling space separated by the intermediate sealing portion. The second forming means seals the front film and the back film in a lateral direction so as to separate the food filled in the filling space in the longitudinal direction, thereby forming a horizontal seal portion. . The heat retaining / heating means may include a continuous package formed by the first forming means, the filling means, and the second forming means, wherein the food is separated in the longitudinal direction and arranged in a sealed state. It is kept warm or heated by water such as hot water or steam. The drying means is for drying the continuous package after the heat retention or heating is completed. Then, the post-processing means cuts or cuts the front side film and the back side film in an intermediate portion of the unsealed portion between the pair of intermediate sealing portions in the dried continuous package. To form.
[0021]
According to this packaging device, the unsealed portion is formed between the pair of intermediate sealed portions. As described above, the unsealed portion is closed by the pair of intermediate seal portions, and in this state, the continuous package is kept warm or heated by water or steam such as hot water or hot water by the warming / heating means. You. Therefore, water does not enter the unsealed portion during the heat retention or heating. However, if the unsealed portion is open in the longitudinal direction at each end of the film in the longitudinal direction, there is a possibility that moisture may enter from the opening. Is desirably closed by a seal or the like. After drying, the front-side film and the back-side film in the middle portion of the unsealed portion are cut or formed so as to be cut by the post-processing means. Therefore, if the front side film and the back side film are cut by this post-processing means, the unsealed portion adjacent to the intermediate sealed portion will be opened, and the front side film and the back side film in this unsealed portion will be pinched. By separating them from each other, the vertical seal portion and further the horizontal seal portion are easily opened. When the front-side film and the back-side film are formed so as to be cuttable by the post-processing means, the unsealed portion adjacent to the intermediate seal portion is thereafter cut by cutting the cuttable portion. The part is opened, and similarly, in the unsealed part, the front side film and the back side film are pinched and separated from each other, whereby the intermediate seal part and the horizontal seal part are easily opened.
[0022]
Further, a food packaging apparatus according to the invention according to claim 11 is a packaging apparatus for packaging food in a sealed state, wherein a first forming means, a filling means, a second forming means, a heat retaining / heating means. And a drying unit and a post-processing unit. Here, the first forming means arranges the film conveyed in the longitudinal direction so as to be positioned on both sides of the front side and the back side to form a front side film and a back side film, and the front side film and the back side film are formed. In order to form a filling space in which the food is filled, the open side ends of the front film and the back film are sealed in the longitudinal direction to form a vertical seal portion. The filling means fills the food with the filling space through a side opening of the film or a rear opening that opens in a direction opposite to a transport direction of the film before the vertical sealing portion is formed in the film. Is to be filled. The second forming means seals the front-side film and the back-side film in two rows in a horizontal direction so as to separate the food filled in the filling space in the longitudinal direction to form a pair of horizontal seal portions. Is what you do. The heat retaining / heating means may include a continuous package formed by the first forming means, the filling means, and the second forming means, wherein the food is separated in the longitudinal direction and arranged in a sealed state. It is kept warm or heated by water such as hot water or steam. The drying means is for drying the continuous package after the heat retention or heating is completed. Then, the post-processing means cuts or cuts the front film and the back film in the intermediate portion of the unsealed portion between the pair of horizontal seal portions in the dried continuous package. To form.
[0023]
According to this packaging device, the unsealed portion is formed between the pair of horizontal sealed portions. In this manner, the unsealed portion is closed by the pair of horizontal seal portions, and in this state, the continuous package is kept warm or heated by water or steam such as hot water or hot water by the warming / heating means. You. Therefore, water does not enter the unsealed portion during the heat retention or heating. After drying, the front-side film and the back-side film in the middle portion of the unsealed portion are cut or formed so as to be cut by the post-processing means. Therefore, if the front-side film and the back-side film are cut by this post-processing means, the unsealed portion adjacent to the horizontal seal portion is opened, and the front-side film and the back-side film in this unsealed portion are pinched. By pulling them apart, the horizontal seal and even the vertical seal are easily opened. Further, when the front side film and the back side film are formed to be cuttable by this post-processing means, the unsealed portion adjacent to the horizontal seal portion is thereafter cut by cutting the cuttable portion. The part is opened, and similarly, in the unsealed part, the front-side film and the back-side film are pinched and separated from each other, so that the horizontal seal part and the vertical seal part can be easily opened.
[0024]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of a method for manufacturing a food package and a food packaging apparatus according to the present invention will be described with reference to the drawings.
[0025]
1 to 8 show one embodiment of a method for manufacturing a food package and a food packaging apparatus according to the present invention. Reference numeral 1 in the figure denotes food such as jelly, kamaboko, hamburger, and the like. Reference numeral 2 denotes a packaging device for packaging the food 1 as a food in a sealed state.
[0026]
The packaging apparatus 2 includes a first forming unit 3, a filling unit 4, a second forming unit 5, an additional forming unit 6, a heat keeping / heating unit, a drying unit, and a post-processing unit. The first forming means 3 forms the front film 7a and the back film 7b by arranging the film 7 conveyed in the longitudinal direction so as to be positioned on both sides of the front side and the back side, and forms the front side film 7a and the back side film 7a. In order to form a filling space S in which the food 1 is filled between the front film 7b and the back film 7b, the open side ends of the front film 7a and the back film 7b are sealed in the longitudinal direction of the film 7 to form a vertical seal. The portion 7c is formed. In detail, the first forming means 3 has a guide portion (not shown) for guiding the film 7 so as to be folded back in the horizontal direction. That is, the front film 7a and the back film 7b are formed by folding the film 7 in the lateral direction. In addition, the first forming means 3 forms a vertical seal portion 7c by sealing (specifically, heat sealing) the open side ends of the front film 7a and the back film 7b in the longitudinal direction of the film 7. , A first roller 8. The first rollers 8 are provided as a pair, and the first pressing portions 8a formed on each of the first rollers 8 sandwich a portion corresponding to the vertical seal portion 7c of the front film 7a and the back film 7b. And heat and press. The first pressing portion 8 a is formed so as to protrude around the peripheral surface of the first roller 8. Then, the first roller 8 rotates in the Q direction so that the axis thereof is orthogonal to the transport direction P of the film 7 and transports the film 7 in its longitudinal direction (see FIG. 1). The first pressing portion 8a is formed such that an additional pressing portion 8b, which will be described later, undulates in an uneven manner toward the additional pressing portion 8b.
[0027]
The filling means 4 feeds the food 1 through the side opening T of the film 7 or the rear opening opening in the direction opposite to the conveying direction of the film 7 before the vertical seal portion 7c is formed on the film 7. Is filled in the filling space S. In detail, the filling means 4 has a transport pipe 9 for transporting the food 1 to the filling space S. In the illustrated embodiment, the transport pipe 9 enters between the front film 7a and the back film 7b from the side opening T of the film 7, bends downward, and extends to the filling space S. I have.
[0028]
The second forming means 5 seals the front side film 7a and the back side film 7b in the horizontal direction so as to separate the food 1 filled in the filling space S in the longitudinal direction of the film 7, and forms the horizontal seal portion 7d. To form. Specifically, the second forming unit 5 includes a second roller 10 that seals (specifically, heat seals) the front film 7a and the back film 7b in the lateral direction. The second rollers 10 are provided as a pair, and the second pressing portions 10a and 10a formed on each of the second rollers 10 form a portion corresponding to the horizontal sealing portion 7d of the front film 7a and the back film 7b, Press and heat as if sandwiching. The second pressing portion 10 a is formed so as to protrude across the peripheral surface of the second roller 10. Then, the second roller 10 rotates in the R direction with the axis thereof being orthogonal to the transport direction P of the film 7 (see FIG. 1). The second pressing portions 10a are provided in two lines on the peripheral surface of the second roller 10. The pitch of the second pressing portions 10a and 10a corresponds to the pitch of the horizontal seal portions 7d and 7d. Is provided as follows. Therefore, the number of the second pressing portions 10a and the radius of the second roller 10 up to the distal end surface of the second pressing portion 10a vary according to the pitch of the horizontal seal portions 7d. However, if the rotation speed of the second roller 10 is changed during the rotation, the pitch need not always be adjusted.
[0029]
The additional forming means 6 seals the end portions of the front film 7a and the back film 7b, which are on the side end side at a distance from the vertical seal portion 7c, in the longitudinal direction of the film 7 (in detail, (Heat sealing) to form an additional sealing portion 7e. In the illustrated embodiment, the first roller 8 also serves as the additional forming means 6. That is, the additional pressing portion 8b formed on the first roller 8 pressurizes and heats the front film 7a and the back film 7b so as to sandwich the portion corresponding to the additional sealing portion 7e. The additional pressing portion 8 b is formed so as to protrude around the peripheral surface of the first roller 8.
[0030]
The heat retaining / heating means is such that the food 1 is separated in the longitudinal direction of the film 7 by the first forming means 3, the filling means 4, the second forming means 5 and the additional forming means 6 and arranged in a sealed state. The continuous package 11 is kept warm or heated by water or steam such as hot water or hot water. Specifically, the continuous package 11 is kept warm or heated by passing through the heat retaining / heating water tank. The heat retention or the heating is mainly performed for the purpose of sterilizing the food 1, but may be performed for the purpose of cooking the food 1, for example.
[0031]
The drying means dries the continuous package 11 which has been kept warm or heated. Specifically, the drying means is, for example, a blower that blows cold air or hot air onto the continuous package 11.
[0032]
The post-processing means leaves at least a part of the unsealed portion 7f between the additional sealing portion 7e and the vertical sealing portion 7c in the dried continuous package 11 on the side of the vertical sealing portion 7c, One or both of the front film 7a and the back film 7b in the seal portion 7f are cut or formed so as to be cut. The post-processing means includes, for example, a cutting tool for cutting the film 7. Then, one or both of the front film 7a and the back film 7b are cut over the entire length by the blade, or, for example, intermittently cut to form the film 7 so as to be cuttable. Or a half-cut shape (that is, halfway while leaving a part of the wall thickness). Here, FIG. 7 shows an example in which one of the front film 7a and the back film 7b, for example, the front film 7a is cut, and FIG. 8 shows that both the front film 7a and the back film 7b are cut. An example is shown.
[0033]
Next, a food package 12 as a food package using the above-described first forming means 3, filling means 4, second forming means 5, additional forming means 6, heat retaining / heating means, drying means and post-processing means. A method of manufacturing the device will be described. This manufacturing method includes the following steps.
<First Forming Step> By using the above-described first forming means 3 and disposing the film 7 conveyed in the longitudinal direction so as to be located on both sides of the front side and the back side, the front side film 7a and the back side film 7b In order to form a filling space S in which the food 1 is filled between the front film 7a and the back film 7b, the open side ends of the front film 7a and the back film 7b are To form a vertical seal portion 7c. In the illustrated embodiment, the front film 7a and the back film 7b are formed by folding the film 7 in the lateral direction. And the vertical seal part 7c is repeatedly formed so that the unseal part 7f side may be wavy in an uneven shape.
<Filling Step> Using the above-described filling means 4, before the vertical seal portion 7c is formed on the film 7, the side opening T of the film 7 or the opening in the direction opposite to the conveying direction of the film 7 is opened. The food 1 is filled into the filling space S through the rear opening.
<Second Forming Step> In order to separate the food 1 filled in the filling space S in the longitudinal direction of the film 7 using the second forming means 5 described above, the front film 7a and the back film 7b are moved in the horizontal direction. To form a horizontal seal portion 7d.
<Additional Forming Step> A step performed during or after the first forming step using the above-described additional forming means 6 (in the illustrated embodiment, together with the formation of the vertical seal portion 7c during the first forming step). In which the front end portions of the front film 7a and the back film 7b, which are closer to the side ends and spaced apart from the vertical sealing portion 7c, are sealed in the longitudinal direction of the film 7. , An additional seal portion 7e is formed.
<Heat Insulation / Heating Step> Using the above-mentioned heat insulation / heating means, the continuous package 11 formed by the first forming step, the filling step, the second forming step, and the additional forming step is heated with hot water or hot water. It is kept warm or heated by water such as water or steam.
<Drying Step> Using the above-described drying means, the continuous package 11 whose heat retention or heating is completed is dried.
<Post-Processing Step> At least a part of the unsealed portion 7f between the additional sealing portion 7e and the vertical sealing portion 7c in the dried continuous packaging body 11 is 7c, one or both of the front side film 7a and the back side film 7b in the unsealed portion 7f are cut or formed so as to be cut, so that the food package 12 as a food package is formed. To manufacture. In the illustrated embodiment, one or both of the front film 7a and the back film 7b are cut (see FIGS. 7 and 8).
[0034]
Next, a method of manufacturing the food package 12 having the above-described configuration and the operation and effect of the packaging device 2 for the food 1 will be described. According to the manufacturing method and the packaging apparatus 2, the unsealed portion 7f is formed between the vertical seal portion 7c on the side end of the film 7 and the additional seal portion 7e. In this manner, the unsealed portion 7f is closed by the additional seal portion 7e and the vertical seal portion 7c, and in this state, the continuous package 11 is heated or heated with water such as hot water or hot water. It is kept warm or heated by steam. Therefore, during this heat retaining / heating step, moisture does not enter the unsealed portion 7f, that is, between the front film 7a and the back film 7b of the unsealed portion 7f, and the subsequent drying is reliably and easily performed. Can be performed. However, if the unsealed portion 7f is opened in the longitudinal direction at each end of the film 7 in the longitudinal direction, there is a possibility that moisture may enter from the opening. In the previous step, it is desirable that the unsealed portion 7f at each end in the longitudinal direction of the film 7 be closed with a seal or the like.
[0035]
Then, after the drying step, in a post-processing step, at least a part of the unsealed portion 7f is left on the vertical seal portion 7c side by using a post-processing means, and the front side of the unsealed portion 7f is The food package 12 is manufactured by cutting or forming one or both of the film 7a and the back film 7b so as to be cuttable. Therefore, if one or both of the front film 7a and the back film 7b is cut by this post-processing step (post-processing means), the unsealed portion 7f adjacent to the vertical sealing portion 7c is opened, and this unprocessed portion is opened. By pulling the front film 7a and the back film 7b of the seal portion 7f and pulling them apart from each other, the vertical seal portion 7c and further the horizontal seal portion 7d can be easily opened and the food 1 inside can be easily taken out. Further, when one or both of the front film 7a and the back film 7b are cuttable by the post-processing step (post-processing means), the cuttable portion is thereafter cut. As a result, the unsealed portion 7f adjacent to the vertical seal portion 7c is opened. Similarly, the front-side film 7a and the back-side film 7b in the unsealed portion 7f are gripped and separated from each other, whereby the vertical seal portion 7f is separated. 7c and the horizontal seal portion 7d can be easily opened, and the food 1 inside can be easily taken out.
[0036]
Moreover, when peeling off the vertical seal portion 7c and the horizontal seal portion 7d, the front side film 7a and the back side film 7b are pinched and separated from each other at the unsealed portion 7f, and the unevenness on the unsealed portion 7f side of the vertical seal portion 7c is obtained. The vertical seal portions 7c and the horizontal seal portions 7d are opened more easily from the tips of the convex portions repeatedly formed in the shape, and the food inside can be more easily taken out.
[0037]
In the post-processing step (post-processing means), when one of the front film 7a and the back film 7b is cut or formed so as to be cut, the front film 7a and the back film 7b in the unsealed portion 7f are cut. When the fingers are put on the unsealed portion 7e of the uncut film (the front film 7a or the back film 7b), the unsealed portion 7f is easily opened. (See FIG. 7).
[0038]
Further, by performing the additional forming step, that is, the formation of the additional seal portion 7e together with the formation of the vertical seal portion 7c, the entire process and the structure of the packaging device 2 can be simplified.
[0039]
Note that the present invention is not limited to the above-described embodiment, and various other modifications are possible. For example, as a first modified example, in the first forming step (first forming means 3), the film 7 is folded back in the horizontal direction, so that the front film 7a and the back film 7b are not formed. As shown in FIG. 10, the front film 7a and the back film 7b may be formed of different films. In this modification, the unseal portion 7f and the additional seal portion 7e are formed on both sides of the front film 7a and the back film 7b, but may be formed on only one of them. In the unsealed portion 7f, one of the front film 7a and the back film 7b is cut (see FIG. 10), but it goes without saying that both may be cut.
[0040]
Further, as a second modification, the additional forming step (adding forming means 6) is eliminated, and instead, in the first forming step (first forming means 3), as shown in FIGS. In addition to the formation of the film 7c, the folded portion 7g of the front film 7a and the back film 7b where the film 7 is folded is sealed in the longitudinal direction of the film 7 at an interval from the folded portion 7g (in detail, , Heat seal) to form the auxiliary seal portion 7h. However, the formation of the vertical seal portion 7c and the formation of the auxiliary seal portion 7h may be performed together, or may be performed in a staggered manner such that one of them is performed first. Then, in the post-processing step (post-processing means), one or both of the front film 7a and the back film 7b in the unsealed portion 7f between the auxiliary sealing portion 7h and the folded portion 7g are cut or The food package 12 as a food package is manufactured so as to be cuttable. FIG. 12 shows an example in which one of the front film 7a and the back film 7b, for example, the front film 7a is cut, but both may be cut. In this post-processing step (post-processing means), when one of the front film 7a and the back film 7b is cut or formed so as to be cut, the front film 7a and the back film 7 in the unsealed portion 7f are cut. 7b can be easily opened by putting a finger on the folded portion 7g remaining on the uncut film (front film 7a or back film 7b) when picking up and separating each other. Can be.
[0041]
As a third modified example, the addition forming step (addition forming means 6) is eliminated, and instead, in the first forming step (first forming means 3), in addition to the formation of the vertical seal portion 7c, FIGS. As shown in FIG. 14, a laterally intermediate portion between the front side film 7a and the back side film 7b is double-sealed (specifically, heat-sealed) in the longitudinal direction of the film 7 to form a pair of intermediate sealing portions 7i. , 7i may be formed. However, the formation of the vertical seal portion 7c and the formation of the intermediate seal portions 7i, 7i may be performed together, or may be performed in a staggered manner such that one of them is performed first. In the post-processing step (post-processing means), the front-side film 7a and the back-side film 7b are cut at a laterally intermediate portion of the unsealed portion 7f between the pair of intermediate sealing portions 7i, 7i. Alternatively, the food package 12 as a food package is manufactured by being cuttable. Here, the part to be cut or the part to be cuttable between the front film 7a and the back film 7b may be at the same position in the front film 7a and the back film 7b (see FIG. 14). The position may be shifted.
[0042]
Further, as a fourth modification, the additional forming step (addition forming means 6) is eliminated, and instead, in the second forming step (second forming means 5), as shown in FIGS. The front film 7a and the back film 7b are laterally and double-sealed (specifically, heat-sealed) in order to separate the food 1 filled in the film 7 in the longitudinal direction of the film 7, and a pair of horizontal seal portions 7j, 7j may be formed. In the post-processing step (post-processing means), the front-side film 7a and the back-side film 7b in the middle portion of the unsealed portion 7f between the pair of horizontal sealed portions 7j, 7j can be cut or cut. To manufacture a food package 12 as a food package. Here, the part to be cut or the part to be cuttable between the front film 7a and the back film 7b may be at the same position in the front film 7a and the back film 7b (see FIG. 16). The position may be shifted.
[0043]
Further, it is a matter of course that the respective configurations can be appropriately combined based on the above-described embodiment and the first to fourth modified examples.
[0044]
Further, in the manufacturing method or the packaging apparatus 2 described above, a cooling step (cooling means) may be provided between the heat keeping / heating step (heat keeping / heating means) and the drying step (drying means). After the post-processing step (post-processing means), the horizontal seal portion 7d is cut or cut so as to be cuttable in order to make the continuous package 11 an individual food package 12 after the post-processing step (post-processing means). Other steps (means) such as providing a step (separation means) may be added.
[0045]
Further, the food 1 is preferably in a solid state when it becomes the food package 12, but this solid state may not be achieved at room temperature, but may be in a frozen state such as a frozen product such as a sherbet. May be in a solid state. Further, the food is not limited to the food 1 to be eaten by humans, and may be food for animals, such as feed such as pet food.
[0046]
【The invention's effect】
As is clear from the above, according to the method for manufacturing a food package and the food packaging apparatus according to the present invention, the following effects are obtained.
[0047]
According to the method for manufacturing a food package described in claims 1 and 2, and the food packaging apparatus described in claim 8, when the temperature is kept or heated by hot water or the like, the unsealed portion is Since it is closed by the additional seal portion and the vertical seal portion, there is no possibility that moisture such as hot water enters the unsealed portion, and subsequent drying can be performed reliably and easily. Then, when peeling the vertical seal portion and the horizontal seal portion, the front seal film and the rear film in the open unsealed portion are gripped and separated from each other, so that the vertical seal portion and the horizontal seal portion are easily opened, and Food can be easily taken out.
[0048]
According to the method for manufacturing a food package according to the third aspect, in addition to the effect of the first or second aspect, the formation of the additional seal portion is performed together with the formation of the vertical seal portion. Can be simplified.
[0049]
According to the method for manufacturing a food package according to the fourth aspect, in addition to the effects of any one of the first to third aspects, in addition to the effect of the first aspect, the vertical seal portion is repeatedly formed in a non-seal portion side in an uneven shape. Therefore, when peeling the vertical seal portion and the horizontal seal portion, the front seal film and the rear film in the open unsealed portion are gripped and separated from each other, so that the vertical seal portion and the horizontal seal portion are more easily. Open, and the food inside can be more easily taken out.
[0050]
According to the method for manufacturing a food package according to the fifth aspect and the food packaging apparatus according to the ninth aspect, when the temperature is kept or heated with hot water or the like, the unsealed portion is Since it is closed by the folded portion and the auxiliary seal portion, there is no possibility that moisture such as hot water enters the unsealed portion, and subsequent drying can be performed reliably and easily. And when peeling off the auxiliary seal part and the horizontal seal part, the auxiliary seal part and the horizontal seal part are easily opened by grasping the front side film and the back side film in the open unsealed part and pulling them apart from each other. Food can be easily taken out.
[0051]
According to the method for manufacturing a food package according to the sixth aspect and the food packaging apparatus according to the tenth aspect, at the time of keeping or heating with hot water or the like, the unsealed portion is Since it is closed by the pair of intermediate seal portions, there is no possibility that moisture such as hot water enters the unsealed portion, and subsequent drying can be performed reliably and easily. Then, when peeling off the intermediate seal portion and the horizontal seal portion, the front seal film and the rear film in the opened unsealed portion are gripped and separated from each other, so that the intermediate seal portion and the horizontal seal portion can be easily opened, and Food can be easily taken out.
[0052]
According to the method for manufacturing a food package according to the seventh aspect and the food packaging apparatus according to the eleventh aspect, when the temperature is kept or heated by hot water or the like, the unsealed portion is Since it is closed by the pair of horizontal seal portions, there is no possibility that moisture such as hot water enters the unsealed portion, and subsequent drying can be performed reliably and easily. Then, when peeling off the horizontal seal portion and the vertical seal portion, the front seal film and the rear film in the open unsealed portion are pinched and separated from each other, so that the horizontal seal portion and the vertical seal portion can be easily opened, and Food can be easily taken out.
[Brief description of the drawings]
FIG. 1 is a side view of an embodiment of a method for manufacturing a food package and a food packaging apparatus according to the present invention.
FIG. 2 is a perspective view of a first roller.
FIG. 3 is a perspective view of a second roller.
FIG. 4 is a partial sectional view taken along line AA in FIG.
5 is an enlarged sectional view taken along line BB in FIG. 1;
6 is a sectional view taken along line CC in FIG. 5;
FIG. 7 is a cross-sectional view showing a state after the post-processing step.
FIG. 8 is a cross-sectional view showing another example after the post-processing step.
FIG. 9 is a cross-sectional view showing a first modified example of the method for manufacturing a food package and the food packaging apparatus according to the present invention.
FIG. 10 is a cross-sectional view showing a state after the post-processing step.
FIG. 11 is a cross-sectional view showing a second modification of the method for manufacturing a food package and the food packaging apparatus according to the present invention.
FIG. 12 is a cross-sectional view showing a state after the post-processing step.
FIG. 13 is a cross-sectional view showing a third modified example of the method for manufacturing a food package and the food packaging apparatus according to the present invention.
FIG. 14 is also a cross-sectional view showing a state after the post-processing step.
FIG. 15 is a longitudinal sectional view showing a fourth modified example of the method for manufacturing a food package and the food packaging apparatus according to the present invention.
FIG. 16 is a longitudinal sectional view similarly showing a state after the post-processing step.
FIG. 17 is a cross-sectional view showing a conventional food package.
[Explanation of symbols]
1 Food (food) 2 Packaging equipment
3 First forming means 4 Filling means
5 Second forming means 6 Additional forming means
7 Film 7a Front side film
7b Backside film 7c Vertical seal
7d Horizontal seal 7e Additional seal
7f Unsealed part 7g Folded part
7h Auxiliary seal part 7i Intermediate seal part
7j Horizontal seal
11 Continuous package 12 Food package (food package)
S Filling space T Side opening
P Transport direction

Claims

A method for producing a food package in which food is packaged in a sealed state,
The film conveyed in the longitudinal direction is arranged so as to be positioned on both sides of the front side and the back side, thereby forming a front side film and a back side film, and the food is filled between the front side film and the back side film. A first forming step of forming a vertical sealing portion by sealing the side ends of the opening of the front film and the back film in the longitudinal direction so as to form a filling space.
Filling the filling space with the food through a lateral opening of the film or a rear opening that opens in a direction opposite to the transport direction of the film before the vertical seal portion is formed on the film. Process and
In order to separate the food filled in the filling space in the longitudinal direction, the front side film and the back side film, in the horizontal direction, a second forming step of forming a horizontal seal portion,
A step performed during or after the first forming step, wherein the front-side film and the back-side film are separated from the longitudinal seal portion by an end portion that is further on a side end side and is formed in the longitudinal direction. Forming an additional seal portion by sealing in the direction,
A continuous package formed by the first forming step, the filling step, the second forming step, and the additional forming step, wherein the food is separated in the longitudinal direction and lined up in a sealed state, is made of hot water or hot water. A heat retention / heating step of keeping or heating with water or steam such as water,
A drying step of drying the continuous package after the heat retention or heating is completed,
In the dried continuous package, at least a part of the unsealed portion between the additional seal portion and the vertical seal portion is left on the vertical seal portion side, and the front side of the unsealed portion is One or both of a film and the backside film, cut, or formed to be cuttable, to produce the food package, a post-processing step,
A method for producing a food package, comprising:

The method for manufacturing a food package according to claim 1, wherein, in the first forming step, the front film and the back film are formed by folding the film in a lateral direction thereof. .

The method for manufacturing a food package according to claim 1, wherein the additional forming step is performed together with the formation of the vertical seal portion in the first forming step.

4. The food package according to claim 1, wherein the vertical seal portion adjacent to the non-seal portion has the non-seal portion side repeatedly formed in an uneven shape. 5. Production method.

A method for producing a food package in which food is packaged in a sealed state,
By disposing the film conveyed in the longitudinal direction so as to be folded in the lateral direction and positioned on both sides of the front side and the back side, a front side film and a back side film are formed, and the front side film and the back side film are formed. In order to form a filling space in which the food is filled, the opening side ends of the front film and the back film are sealed in the longitudinal direction to form a vertical seal portion, and the front film is formed. And the back film, the folded portion side where the film is folded, the folded portion is spaced apart from the longitudinal direction and sealed in the longitudinal direction to form an auxiliary seal portion, a first forming step,
Filling the filling space with the food through a lateral opening of the film or a rear opening that opens in a direction opposite to the transport direction of the film before the vertical seal portion is formed on the film. Process and
In order to separate the food filled in the filling space in the longitudinal direction, the front side film and the back side film, in the horizontal direction, a second forming step of forming a horizontal seal portion,
A continuous package formed by the first forming step, the filling step, and the second forming step, wherein the food is separated in the longitudinal direction and lined up in a sealed state, water such as hot water or hot water or the like. A heat retention / heating step of keeping or heating with steam,
A drying step of drying the continuous package after the heat retention or heating is completed,
In the dried continuous package, at least a part of the unsealed portion between the auxiliary seal portion and the folded portion is left on the auxiliary seal portion side, and the front side film in the unsealed portion is left. And one or both of the back film and cut or formed so as to be cut, to produce the food package, a post-processing step,
A method for producing a food package, comprising:

A method for producing a food package in which food is packaged in a sealed state,
The film conveyed in the longitudinal direction is arranged so as to be positioned on both sides of the front side and the back side, thereby forming a front side film and a back side film, and the food is filled between the front side film and the back side film. In order to form a filling space, the opening side ends of the front film and the back film are sealed in the longitudinal direction to form a vertical seal portion, and an intermediate portion between the front film and the back film. A first forming step of forming a pair of intermediate seal portions by sealing two in the longitudinal direction,
Before the vertical sealing portion is formed on the film, the food is passed through a side opening portion of the film or a rear opening portion opening in a direction opposite to the transport direction of the film, and the pair of intermediate sealing portions is provided. A filling step of filling the filling space separated by
In order to separate the food filled in the filling space in the longitudinal direction, the front side film and the back side film, in the horizontal direction, a second forming step of forming a horizontal seal portion,
A continuous package formed by the first forming step, the filling step, and the second forming step, wherein the food is separated in the longitudinal direction and lined up in a sealed state, water such as hot water or hot water or the like. A heat retention / heating step of keeping or heating with steam,
A drying step of drying the continuous package after the heat retention or heating is completed,
In the dried continuous package, the front side film and the back side film in an intermediate portion of the unsealed portion between the pair of intermediate sealed portions are cut or formed so as to be cut, and the food is cut. A post-processing step for manufacturing the package,
A method for producing a food package, comprising:

A method for producing a food package in which food is packaged in a sealed state,
The film conveyed in the longitudinal direction is arranged so as to be positioned on both sides of the front side and the back side, thereby forming a front side film and a back side film, and the food is filled between the front side film and the back side film. A first forming step of forming a vertical sealing portion by sealing the side ends of the opening of the front film and the back film in the longitudinal direction so as to form a filling space.
Filling the filling space with the food through a lateral opening of the film or a rear opening that opens in a direction opposite to the transport direction of the film before the vertical seal portion is formed on the film. Process and
In order to separate the food filled in the filling space in the longitudinal direction, the front-side film and the back-side film, two laterally sealed in a horizontal direction, a second forming step of forming a pair of horizontal seal portions, ,
A continuous package formed by the first forming step, the filling step, and the second forming step, wherein the food is separated in the longitudinal direction and lined up in a sealed state, water such as hot water or hot water or the like. A heat retention / heating step of keeping or heating with steam,
A drying step of drying the continuous package after the heat retention or heating is completed,
In the dried continuous package, the front film and the back film are cut or formed so as to be cut at an intermediate portion of an unsealed portion between the pair of horizontal sealed portions, and the food is formed. A post-processing step for manufacturing the package,
A method for producing a food package, comprising:

A packaging device for packaging food in a sealed state,
The film conveyed in the longitudinal direction is arranged so as to be positioned on both sides of the front side and the back side, thereby forming a front side film and a back side film, and the food is filled between the front side film and the back side film. First forming means for forming a vertical sealing portion by sealing the side ends of the opening of the front film and the back film in the longitudinal direction to form a filling space.
Filling the filling space with the food through a lateral opening of the film or a rear opening that opens in a direction opposite to the transport direction of the film before the vertical seal portion is formed on the film. Means,
In order to separate the food filled in the filling space in the longitudinal direction, the front side film and the back side film are sealed in the horizontal direction, a second forming means for forming a horizontal seal portion,
The front film and the back film, the vertical seal portion is spaced apart from the end portion that is further side end side, the longitudinal direction is sealed in the longitudinal direction to form an additional seal portion, additional forming means, ,
A continuous package formed by the first forming means, the filling means, the second forming means, and the additional forming means, wherein the food is separated in the longitudinal direction and lined up in a sealed state, is made of hot water or hot water. Insulation / heating means for keeping or heating with water such as water or steam,
Drying means for drying the continuous package after the heat retention or heating is completed,
In the dried continuous package, at least a part of the unsealed portion between the additional seal portion and the vertical seal portion is left on the vertical seal portion side, and the front side of the unsealed portion is One or both of the film and the back film, cut, or formed to be cuttable, post-processing means,
A food packaging device, comprising:

A packaging device for packaging food in a sealed state,
By arranging the film conveyed in the longitudinal direction so as to be folded in the lateral direction and positioned on both sides of the front side and the back side, a front side film and a back side film are formed, and the front side film and the back side film are formed. In order to form a filling space in which the food is filled, the opening side ends of the front film and the back film are sealed in the longitudinal direction to form a vertical seal portion, and the front film is formed. And the back side film, the folded portion side where the film is folded, the folded portion is sealed in the longitudinal direction at an interval from the folded portion to form an auxiliary seal portion, a first forming means,
Filling the filling space with the food through a lateral opening of the film or a rear opening that opens in a direction opposite to the transport direction of the film before the vertical seal portion is formed on the film. Means,
In order to separate the food filled in the filling space in the longitudinal direction, the front side film and the back side film are sealed in the horizontal direction, a second forming means for forming a horizontal seal portion,
A continuous package formed by the first forming unit, the filling unit, and the second forming unit, wherein the food is separated in the longitudinal direction and is lined up in a sealed state, water such as hot water or hot water or the like. Insulation / heating means for keeping or heating with steam,
Drying means for drying the continuous package after the heat retention or heating is completed,
In the dried continuous package, at least a part of the unsealed portion between the auxiliary seal portion and the folded portion is left on the auxiliary seal portion side, and the front side film in the unsealed portion is left. And one or both of the back side film, cut or formed to be cuttable, post-processing means,
A food packaging device, comprising:

A packaging device for packaging food in a sealed state,
The film conveyed in the longitudinal direction is arranged so as to be positioned on both sides of the front side and the back side, thereby forming a front side film and a back side film, and the food is filled between the front side film and the back side film. In order to form a filling space, the opening side ends of the front film and the back film are sealed in the longitudinal direction to form a vertical seal portion, and an intermediate portion between the front film and the back film. A first forming means for forming a pair of intermediate seal portions by sealing the two in the longitudinal direction,
Before the vertical sealing portion is formed on the film, the food is passed through a side opening portion of the film or a rear opening portion opening in a direction opposite to the transport direction of the film, and the pair of intermediate sealing portions is provided. Filling means for filling the filling space separated by,
In order to separate the food filled in the filling space in the longitudinal direction, the front side film and the back side film are sealed in the horizontal direction, a second forming means for forming a horizontal seal portion,
A continuous package formed by the first forming unit, the filling unit, and the second forming unit, wherein the food is separated in the longitudinal direction and is lined up in a sealed state, water such as hot water or hot water or the like. Insulation / heating means for keeping or heating with steam,
Drying means for drying the continuous package after the heat retention or heating is completed,
In the dried continuous package, in the intermediate portion of the unsealed portion between the pair of intermediate sealed portions, the front side film and the back side film are cut, or formed to be cuttable, post-processing means, To
A food packaging device, comprising:

A packaging device for packaging food in a sealed state,
The film conveyed in the longitudinal direction is arranged so as to be positioned on both sides of the front side and the back side, thereby forming a front side film and a back side film, and the food is filled between the front side film and the back side film. First forming means for forming a vertical sealing portion by sealing the side ends of the opening of the front film and the back film in the longitudinal direction to form a filling space.
Filling the filling space with the food through a lateral opening of the film or a rear opening that opens in a direction opposite to the transport direction of the film before the vertical seal portion is formed on the film. Means,
In order to separate the food filled in the filling space in the longitudinal direction, the front-side film and the back-side film are sealed in two rows in the horizontal direction, and a second forming means for forming a pair of horizontal seal portions. ,
A continuous package formed by the first forming unit, the filling unit, and the second forming unit, wherein the food is separated in the longitudinal direction and is lined up in a sealed state, water such as hot water or hot water or the like. Insulation / heating means for keeping or heating with steam,
Drying means for drying the continuous package after the heat retention or heating is completed,
In the dried continuous package, in the middle portion of the unsealed portion between the pair of horizontal sealed portions, the front side film and the back side film are cut, or formed to be cuttable, post-processing means, To
A food packaging device, comprising: