JP2017214129A - Pouch for microwave oven - Google Patents

Pouch for microwave oven Download PDF

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JP2017214129A
JP2017214129A JP2016110799A JP2016110799A JP2017214129A JP 2017214129 A JP2017214129 A JP 2017214129A JP 2016110799 A JP2016110799 A JP 2016110799A JP 2016110799 A JP2016110799 A JP 2016110799A JP 2017214129 A JP2017214129 A JP 2017214129A
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steam
seal portion
steam release
pouch
microwave oven
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JP6820465B2 (en
Inventor
三浦　崇
Takashi Miura
崇 三浦
小沢　和美
Kazumi Ozawa
和美 小沢
勝弘 本郷
Katsuhiro Hongo
勝弘 本郷
史絵 松永
Fumie Matsunaga
史絵 松永
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Toyo Seikan Group Holdings Ltd
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Toyo Seikan Kaisha Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a pouch for microwave oven that enables steam to be excellently discharged even if a part of the pouch bends or swells unevenly when the pouch expands, and improves degrees of freedom of design of a position where an automatic steam releasing mechanism is formed and so on.SOLUTION: The present invention relates to a pouch 10 for microwave oven that comprises an automatic steam releasing mechanism 20. The pouch 10 is characterized in that: the automatic steam releasing mechanism 20 has an annular steam releasing seal part 30, a steam opening part 40 surrounded with the steam releasing seal part 30, and a steam releasing part 50 formed of the steam opening part 40; and the steam releasing seal part 30 has a weak seal part 31, and a strong seal part 32 which is formed adjacently to the weak seal part 31 in a peripheral direction of the steam releasing seal part 30, and has higher peeling resistance than the weak seal part 31.SELECTED DRAWING: Figure 1

Description

本発明は、重ねた積層フィルムを熱接着することにより袋状に成形され、加熱時に内部の蒸気を自動的に逃がす自動蒸気抜き機構を備えた電子レンジ用パウチに関する。   The present invention relates to a pouch for a microwave oven that is formed into a bag shape by thermally bonding stacked laminated films and includes an automatic steam venting mechanism that automatically releases internal steam during heating.

従来、重ねた積層フィルムを熱接着することにより袋状に成形されたパウチ内に、調理済あるいは半調理済の食品を収容し、当該食品の喫食時に、電子レンジによって加熱調理する包装食品が市場に出回っている。   Conventionally, packaged foods that contain cooked or semi-cooked food in a pouch shaped like a bag by heat-bonding stacked laminated films, and cooked by a microwave oven when eating the food are marketed Have been around.

このようなパウチでは、電子レンジで加熱すると、食品から発生する蒸気や内部空気の熱膨張によりパウチの内圧が高まり、パウチに破袋や変形が生じたり、また、破袋によりパウチ内の食品が飛散する恐れがある。   In such a pouch, when heated in a microwave oven, the internal pressure of the pouch increases due to the thermal expansion of steam and internal air generated from the food, and the pouch is broken or deformed, and the food in the pouch is broken by the broken bag. There is a risk of splashing.

そのため、近年、電子レンジ用のパウチには、加熱時に内部の蒸気を自動的に逃がす自動蒸気抜き機構が一般的に設けられており、このような自動蒸気抜き機構を備えたパウチとして、重ねた積層フィルムの一部を熱接着して環状の蒸気抜きシール部を設け、環状の蒸気抜きシール部に囲まれた蒸気開放部に蒸気抜き孔を設けたパウチが知られている（例えば、特許文献１を参照）。   Therefore, in recent years, a pouch for a microwave oven is generally provided with an automatic steam release mechanism that automatically releases internal steam during heating, and is stacked as a pouch equipped with such an automatic steam release mechanism. A pouch is known in which a part of a laminated film is thermally bonded to provide an annular steam release seal portion, and a steam release hole is provided in a steam release portion surrounded by the annular steam release seal portion (for example, Patent Documents). 1).

この特許文献１のパウチでは、電子レンジによる加熱に伴ってパウチ内の圧力が高まると、環状の蒸気抜きシール部（外側シール部）の一部が剥離して蒸気開放部（緩衝部）と連通し、当該剥離箇所および蒸気抜き孔（弱化部）を通じて、パウチ内の蒸気が外部へ排出される。   In the pouch of Patent Document 1, when the pressure in the pouch increases with heating by the microwave oven, a part of the annular steam vent seal part (outer seal part) is peeled off and communicated with the steam release part (buffer part). And the vapor | steam in a pouch is discharged | emitted outside through the said peeling location and a steam vent (weakening part).

特開２００３−１９２０４２号公報JP 2003-192042 A

ところが、特許文献１に開示されるような自動蒸気抜き機構では、パウチの加熱時において蒸気抜きシール部の剥離が進行する方向と、蒸気抜き部の設計との関係について、次のような課題がある。   However, the automatic steam venting mechanism disclosed in Patent Document 1 has the following problems regarding the relationship between the direction in which peeling of the steam vent seal portion proceeds during the heating of the pouch and the design of the steam vent portion. is there.

上記を詳細に説明すると、まず、電子レンジによってパウチを加熱すると、食品等の内容物から発生する蒸気や内部空気の熱膨張により、パウチの内圧が高まり、パウチの収容部の中央から放射状に力が与えられることになる。   To explain the above in detail, first, when the pouch is heated by a microwave oven, the internal pressure of the pouch increases due to the thermal expansion of steam or internal air generated from the contents of food, etc. Will be given.

次に、放射状に広がる力によって、図８に示すように、パウチの収容部の中央から最も近い箇所から蒸気抜きシール部１３０が剥離を開始し、この蒸気抜きシール部１３０の剥離は、パウチの収容部の中央から遠ざかる方向に、点線Ｂ１、点線Ｂ２、点線Ｂ３の順に進行する。なお、図８に示す点線Ｂ１〜Ｂ３は、剥離箇所と未剥離箇所との間の境界線を示している。   Next, as shown in FIG. 8, the steam vent seal portion 130 starts peeling from a position closest to the center of the pouch housing portion due to the radially spreading force, and the steam vent seal portion 130 peels off the pouch. It progresses in the order of dotted line B1, dotted line B2, and dotted line B3 in the direction away from the center of the accommodating part. Note that dotted lines B1 to B3 shown in FIG. 8 indicate boundary lines between the peeled portion and the unpeeled portion.

また、蒸気開放部１４０についても同様に、点線Ｂ１、点線Ｂ２、点線Ｂ３の順に密接状態が解除される。すなわち、蒸気開放部１４０を構成する表裏の積層フィルムは、蒸気抜きシール部１３０の剥離開始前には、互いに密接した状態となっているが、蒸気抜きシール部１３０の剥離開始後には、放射状に広がる力によって、パウチの収容部の中央から遠ざかる方向に密接状態が解除されていく。   Similarly, the steam release unit 140 is released from the close state in the order of the dotted line B1, the dotted line B2, and the dotted line B3. That is, the laminated films on the front and back that constitute the steam release portion 140 are in close contact with each other before the start of peeling of the steam release seal portion 130, but radially after the start of peeling of the steam release seal portion 130. Due to the spreading force, the close state is released in a direction away from the center of the housing part of the pouch.

次に、蒸気抜きシール部１３０の剥離、および蒸気開放部１４０の密接状態の解除が点線Ｂ３まで達した時点で、蒸気開放部１４０の剥離が蒸気抜き部１５０に達し、蒸気抜き部１５０との接点付近に小さな噴出口１６０が形成され、噴出口１６０から蒸気がパウチの外部に排出される。   Next, when the release of the steam release seal part 130 and the release of the close state of the steam release part 140 reach the dotted line B <b> 3, the release of the steam release part 140 reaches the steam release part 150. A small spout 160 is formed in the vicinity of the contact, and steam is discharged from the spout 160 to the outside of the pouch.

そして、噴出口１６０から蒸気が排出され始めた後は、蒸気抜きシール部１３０および蒸気開放部１４０の剥離の進行は一旦止まり、点線Ｂ３よりも先の蒸気抜きシール部１３０の剥離、および蒸気開放部１４０の密接状態の解除の進行が極めて鈍化し、噴出口１６０は小さなままとなる場合が多い。   Then, after the steam begins to be discharged from the spout 160, the progress of the peeling of the steam release seal portion 130 and the steam release portion 140 is temporarily stopped, the release of the steam release seal portion 130 ahead of the dotted line B3, and the steam release. In many cases, the progress of the release of the close state of the portion 140 is extremely slow, and the jet port 160 remains small.

このように、特許文献１に開示されるような自動蒸気抜き機構では、蒸気抜き部１５０全体で蒸気の排出が行われるのではなく、そのほとんどが、蒸気開放部１４０の剥離と蒸気抜き部１５０との接点付近に形成される小さな噴出口１６０を通じて蒸気の排出が行われる。このため、円形孔以外の形状で蒸気抜き部１５０を形成する場合には、噴出口１６０が良好に形成されるように、蒸気抜きシール部１３０や蒸気開放部１４０の剥離が進行する方向を考慮して、蒸気抜き部１５０の設計を行っている。   As described above, in the automatic steam venting mechanism as disclosed in Patent Document 1, the steam is not exhausted in the whole steam venting section 150, but most of the peeling of the steam release section 140 and the steam venting section 150 are performed. Vapor is discharged through a small spout 160 formed near the contact point. For this reason, when the steam vent 150 is formed in a shape other than a circular hole, the direction in which the steam vent seal part 130 and the steam release part 140 are peeled off is taken into consideration so that the jet outlet 160 is formed satisfactorily. Thus, the steam vent 150 is designed.

ところが、パウチ内に収容される内容物の種類や収容状態、電子レンジ内へのパウチの設置態様等に起因して、パウチの膨張時に、パウチの一部が折れ曲がったり、パウチの膨らみ方に偏りが生じることがあり、この場合、蒸気抜きシール部１３０や蒸気開放部１４０の剥離が予定していた様には行われず、その結果、予定外の位置や態様で噴出口１６０が形成され、蒸気の排出が良好に行われない虞があるという問題があった。   However, due to the type and state of the contents stored in the pouch, the installation mode of the pouch in the microwave oven, etc., when the pouch is inflated, a part of the pouch is bent or biased toward the way the pouch is expanded. In this case, the steam vent seal part 130 and the steam release part 140 are not peeled off as planned, and as a result, the spout 160 is formed at an unscheduled position and form, There is a problem that there is a possibility that the discharge of the gas may not be performed satisfactorily.

そこで、本発明は、これらの問題点を解決するものであり、簡素な構造で、パウチの膨張時に、パウチの一部が折れ曲がったり膨らみ方に偏りが生じた場合であっても、蒸気の良好な排出を実現するとともに、自動蒸気抜き機構を形成する位置等の設計自由度を向上する電子レンジ用パウチを提供することを目的とするものである。   Accordingly, the present invention solves these problems, and has a simple structure, and even when a part of the pouch is bent or the way of swelling is biased when the pouch is inflated, the steam is good. It is an object of the present invention to provide a microwave oven pouch that realizes efficient discharge and improves the degree of freedom in design such as a position where an automatic steam release mechanism is formed.

本発明は、自動蒸気抜き機構を備えた電子レンジ用パウチであって、前記自動蒸気抜き機構は、環状の蒸気抜きシール部と、前記蒸気抜きシール部によって囲まれた蒸気開放部と、前記蒸気開放部に形成された蒸気抜き部とを有し、前記蒸気抜きシール部は、弱シール部と、前記蒸気抜きシール部の周方向に前記弱シール部に隣接して形成され、前記弱シール部よりも耐剥離性が高い強シール部とを有していることにより、前記課題を解決するものである。
なお、本明細書における用語「耐剥離性」とは、剥離の進行による蒸気抜きシール部の外周側と内周側との連通に対する抵抗性能のことを意味する。 The present invention is a microwave oven pouch equipped with an automatic steam release mechanism, wherein the automatic steam release mechanism includes an annular steam release seal part, a steam release part surrounded by the steam release seal part, and the steam A steam release portion formed in the open portion, and the steam release seal portion is formed adjacent to the weak seal portion in a circumferential direction of the weak seal portion and the steam release seal portion, and the weak seal portion The above-described problems are solved by having a strong seal portion having higher peeling resistance than the above.
In addition, the term “peeling resistance” in the present specification means resistance performance against communication between the outer peripheral side and the inner peripheral side of the steam release seal portion due to the progress of peeling.

本請求項１に係る発明によれば、蒸気抜きシール部が、弱シール部と、蒸気抜きシール部の周方向に弱シール部に隣接して形成され、弱シール部よりも耐剥離性が高い強シール部とを有していることにより、パウチの膨張時に、パウチの一部が折れ曲がったり、パウチの膨らみ方に偏りが生じた場合であっても、剥離によって蒸気抜きシール部の外周側と内周側とが連通する箇所を弱シール部に誘導することが可能なため、蒸気抜きシール部や蒸気開放部の剥離が進行する方向を良好に制御し、蒸気の排出を良好に行うことができる。
また、蒸気抜きシール部や蒸気開放部の剥離が進行する方向を制御することが可能であるため、自動蒸気抜き機構を形成する位置等の設計自由度を向上することができる。 According to the first aspect of the present invention, the steam vent seal portion is formed adjacent to the weak seal portion and the weak seal portion in the circumferential direction of the steam vent seal portion, and has higher peel resistance than the weak seal portion. By having a strong seal part, even when a part of the pouch is bent or the pouch swells unevenly when the pouch is inflated, Since it is possible to guide the place where the inner peripheral side communicates to the weak seal part, it is possible to control the direction in which the peeling of the steam release seal part and the steam release part proceeds well and to discharge steam well. it can.
Moreover, since it is possible to control the direction in which peeling of the steam release seal part and the steam release part proceeds, the degree of freedom in design such as the position where the automatic steam release mechanism is formed can be improved.

本請求項２に係る発明によれば、強シール部が、蒸気抜きシール部の周方向に見た場合の幅が、弱シール部よりも広い部位であることにより、蒸気抜きシール部の幅を調整するだけで、蒸気抜きシール部や蒸気開放部の剥離が進行する方向を制御することができる。
本請求項３に係る発明によれば、弱シール部が、蒸気抜きシール部の外周側に凸状の形状を有していることにより、パウチの加熱時にパウチ内に発生する力を弱シール部に確実に作用させ、弱シール部を確実に剥離させることができる。
本請求項４に係る発明によれば、強シール部が、蒸気抜きシール部の周方向において弱シール部の両側に形成されていることにより、パウチの膨張時に、パウチの折れ曲がりや膨らみが想定外の態様で生じた場合であっても、蒸気抜きシール部や蒸気開放部の剥離が進行する方向を確実に制御することができる。
本請求項５に係る発明によれば、弱シール部の少なくとも一部が、左右の強シール部を結んだ仮想線よりも、パウチの収容部の中央側に形成されていることにより、パウチの加熱時にパウチ内に発生する力を弱シール部に確実に作用させ、剥離によって蒸気抜きシール部の外周側と内周側とが連通する箇所を弱シール部に確実に誘導することができる。
本請求項６に係る発明によれば、蒸気抜きシール部や蒸気開放部の剥離が進行する方向によって、蒸気の排出具合に影響を受けがちな非円形孔またはスリットとして、蒸気抜き部が形状されている場合であっても、良好な蒸気の排出を実現できる。
本請求項７に係る発明によれば、蒸気抜き部が、その全体形状が扁平状に形成され、その短手方向において、弱シール部に対向するように形成されていることにより、蒸気抜き部全体を大きくすることなく、蒸気開放部の剥離と蒸気抜き部との接点付近に形成される蒸気の噴出口を大きく確保することができる。
本請求項８に係る発明によれば、蒸気抜き部がスリットから成り、スリットは、スリット両端部と、スリット両端部から弱シール部よりも遠い領域に向かって形成され、スリット両端部を繋ぐスリット中間部とから構成されている。このため、パウチの内圧の上昇に応じて蒸気抜きシール部が剥離した際に、蒸気開放部への蒸気の進入やパウチの変形等に起因して、スリットにより区画された可動片部がパウチの表側または裏側に向けて傾動し、その結果、スリット両端部の付近に、パウチの外部に開口する蒸気の噴出口が形成される。そして、これら噴出口は、内容物が蒸気開放部に進入する方向に対して横向きに開口しているため、噴出口から蒸気を排出させつつも、噴出口から内容物が噴出することを抑制できる。
本請求項９に係る発明によれば、蒸気抜きシール部が、外縁シール部の内側に独立して形成されていることにより、外縁シール部の設計が蒸気の排出具合に影響を与えることを回避し、外縁シール部の設計自由度を確保することができる。 According to the second aspect of the present invention, the width of the steam release seal portion is increased when the strong seal portion is a portion wider than the weak seal portion when viewed in the circumferential direction of the steam release seal portion. Only by adjusting, it is possible to control the direction in which peeling of the steam release seal part and the steam release part proceeds.
According to the third aspect of the invention, the weak seal portion has a convex shape on the outer peripheral side of the steam release seal portion, so that the force generated in the pouch when the pouch is heated is weakly sealed. The weak seal portion can be reliably peeled off.
According to the fourth aspect of the present invention, since the strong seal portion is formed on both sides of the weak seal portion in the circumferential direction of the steam release seal portion, the pouch is not expected to bend or bulge when the pouch is expanded. Even if it arises in this aspect, the direction in which the peeling of the steam release seal part and the steam release part proceeds can be reliably controlled.
According to the fifth aspect of the present invention, at least a part of the weak seal portion is formed closer to the center side of the pouch housing portion than the imaginary line connecting the left and right strong seal portions. The force generated in the pouch during heating can be reliably applied to the weak seal portion, and the portion where the outer peripheral side and the inner peripheral side of the steam release seal portion communicate with each other can be reliably guided to the weak seal portion by peeling.
According to the sixth aspect of the present invention, the steam vent is formed as a non-circular hole or slit that tends to be affected by the steam discharge depending on the direction in which the steam vent seal part and the steam release part are peeled off. Even when it is, good steam discharge can be realized.
According to the seventh aspect of the present invention, the steam vent is formed so that the entire shape thereof is flat and is opposed to the weak seal portion in the short direction. Without enlarging the whole, it is possible to secure a large steam outlet formed in the vicinity of the contact point between the peeling of the steam opening and the steam vent.
According to the eighth aspect of the present invention, the vapor vent part is composed of slits, and the slits are formed at both ends of the slit and the slits that are formed from both ends of the slit toward a region farther than the weak seal part. It consists of an intermediate part. For this reason, when the steam vent seal part peels off as the internal pressure of the pouch increases, the movable piece part partitioned by the slit is caused by the entry of steam into the steam release part, deformation of the pouch, etc. As a result, it tilts toward the front side or the back side, and as a result, a steam outlet opening to the outside of the pouch is formed in the vicinity of both ends of the slit. And since these spouts are opened sideways with respect to the direction in which the contents enter the steam opening portion, it is possible to prevent the contents from being ejected from the spout while discharging the steam from the spout. .
According to the ninth aspect of the present invention, the steam vent seal portion is independently formed inside the outer edge seal portion, so that the design of the outer edge seal portion avoids affecting the steam discharge condition. In addition, the degree of freedom in designing the outer edge seal portion can be ensured.

本発明の一実施形態に係るパウチを示す平面図。The top view which shows the pouch which concerns on one Embodiment of this invention. 自動蒸気抜き機構の周辺を示す平面図。The top view which shows the periphery of an automatic steam release mechanism. 自動蒸気抜き機構を示す平面図。The top view which shows an automatic steam release mechanism. 自動蒸気抜き機構を示す断面図。Sectional drawing which shows an automatic vapor venting mechanism. パウチ加熱時における自動蒸気抜き機構の状態を示す説明図。Explanatory drawing which shows the state of the automatic steam venting mechanism at the time of pouch heating. 自動蒸気抜き機構の第１変形例を示す平面図。The top view which shows the 1st modification of an automatic steam release mechanism. 自動蒸気抜き機構の第２〜第９変形例を示す平面図。The top view which shows the 2nd-9th modification of an automatic steam release mechanism. 蒸気抜きのメカニズムを説明する説明図。Explanatory drawing explaining the mechanism of steam removal.

以下に、本発明の一実施形態に係る電子レンジ用のパウチ１０について、図面に基づいて説明する。   Below, the pouch 10 for microwave ovens which concerns on one Embodiment of this invention is demonstrated based on drawing.

まず、パウチ１０は、図１に示すように、重ねた積層フィルム１１の外縁を熱接着した外縁シール部１２を形成することにより袋状に形成され、その内側の収容部１３に食品等の内容物を収容するものである。
パウチ１０には、加熱時にパウチ１０内の蒸気を自動的に外部に逃がす自動蒸気抜き機構２０が設けられている。 First, as shown in FIG. 1, the pouch 10 is formed into a bag shape by forming an outer edge seal portion 12 in which the outer edges of the stacked laminated films 11 are thermally bonded, and the contents of food and the like are contained in the inner accommodating portion 13. It contains things.
The pouch 10 is provided with an automatic steam release mechanism 20 that automatically releases the steam in the pouch 10 to the outside during heating.

自動蒸気抜き機構２０は、図１に示すように、重ねた積層フィルム１１を熱接着した環状の蒸気抜きシール部３０と、この蒸気抜きシール部３０によって囲まれた内側部分である蒸気開放部４０と、蒸気開放部４０に形成された蒸気抜き部５０とを有している。   As shown in FIG. 1, the automatic steam release mechanism 20 includes an annular steam release seal portion 30 in which the stacked laminated films 11 are thermally bonded, and a steam release portion 40 that is an inner portion surrounded by the steam release seal portion 30. And a steam vent 50 formed in the steam release part 40.

以下に、自動蒸気抜き機構２０の各構成要素について、図１〜図４に基づいて説明する。   Below, each component of the automatic steam release mechanism 20 is demonstrated based on FIGS. 1-4.

まず、蒸気抜きシール部３０は、図１や図２に示すように、外縁シール部１２の内側の隅に、外縁シール部１２から独立して形成されている。
蒸気抜きシール部３０は、図１〜図３に示すように、弱シール部３１と、蒸気抜きシール部３０の周方向に弱シール部３１の両側に隣接して形成された強シール部３２とを有している。
強シール部３２は、蒸気抜きシール部３０の周方向に見た場合の幅が弱シール部３１よりも広く形成され、これにより、弱シール部３１よりも耐剥離性が高く設定されている。 First, as shown in FIG. 1 and FIG. 2, the steam release seal portion 30 is formed at the inner corner of the outer edge seal portion 12 independently of the outer edge seal portion 12.
As shown in FIGS. 1 to 3, the steam vent seal portion 30 includes a weak seal portion 31 and a strong seal portion 32 formed adjacent to both sides of the weak seal portion 31 in the circumferential direction of the steam vent seal portion 30. have.
The strong seal portion 32 is formed wider than the weak seal portion 31 when viewed in the circumferential direction of the steam release seal portion 30, and as a result, the peel resistance is set higher than that of the weak seal portion 31.

また、蒸気抜きシール部３０は、図３に示すように、収容部１３の中央Ｃ側に面する対向領域３０ａと、収容部１３の中央Ｃ側に面しない非対向領域３０ｂとを有し、弱シール部３１の少なくとも一部は、対向領域３０ａに形成されている。
また、弱シール部３１は、図１〜図３に示すように、蒸気抜きシール部３０の外周側に凸状に膨らんだ形状を有している。
また、弱シール部３１の少なくとも一部（本実施形態では全部）は、図３に示すように、左右の強シール部３２を結んだ（正確には強シール部３２の中央Ｃ側の端部同士を結んだ）仮想線Ｌ４よりも、収容部１３の中央Ｃ側に形成されている。 Further, as shown in FIG. 3, the steam release seal portion 30 has a facing region 30 a facing the center C side of the housing portion 13 and a non-facing region 30 b not facing the center C side of the housing portion 13. At least a part of the weak seal portion 31 is formed in the facing region 30a.
Moreover, the weak seal | sticker part 31 has the shape swelled convexly on the outer peripheral side of the steam removal seal | sticker part 30, as shown in FIGS.
Further, at least a part (all in this embodiment) of the weak seal portion 31 connects the left and right strong seal portions 32 (more precisely, the end portion on the center C side of the strong seal portion 32). It is formed closer to the center C side of the accommodating portion 13 than the virtual line L4.

蒸気開放部４０は、重ねた表裏の積層フィルム１１を熱接着していない未シール部として形成されている。
なお、蒸気開放部４０の具体的態様は、これに限定されず、例えば、外縁シール部１２や蒸気抜きシール部３０よりも弱めに、表裏の積層フィルム１１に熱接着を施した弱接着部や、表裏の積層フィルム１１にローレットシール等を施したパターン状接着部として、蒸気開放部４０を形成してもよい。 The steam release portion 40 is formed as an unsealed portion where the stacked front and back laminated films 11 are not thermally bonded.
In addition, the specific aspect of the vapor | steam open | release part 40 is not limited to this, For example, the weak adhesion part which performed the heat bonding to the laminated | multilayer film 11 of the front and back, weaker than the outer edge seal part 12 and the vapor removal seal part 30, The vapor release part 40 may be formed as a pattern-like adhesive part in which the front and back laminated films 11 are knurled.

蒸気抜き部５０は、孔またはスリットとして形成され、本実施形態では、図３に示すように、短軸、長軸を有する楕円孔として形成されている。
また、蒸気抜き部５０は、図４に示すように、重ねた表裏の積層フィルム１１を表裏方向に貫通して形成されている。
また、蒸気抜き部５０は、図３に示すように、その短手方向（楕円の短軸方向）において、弱シール部３１の少なくとも一部に対向するように形成されている。 The steam vent 50 is formed as a hole or a slit. In the present embodiment, as shown in FIG. 3, the steam vent 50 is formed as an elliptical hole having a short axis and a long axis.
Further, as shown in FIG. 4, the vapor vent 50 is formed by penetrating the stacked front and back laminated films 11 in the front and back direction.
Further, as shown in FIG. 3, the steam vent 50 is formed so as to face at least a part of the weak seal portion 31 in the short direction (short axis direction of the ellipse).

蒸気抜き部５０は、図３に示すように、その長手方向（楕円の長軸方向）に延びるように形成され、弱シール部３１に対向する長手方向延在部５１を有している。
長手方向延在部５１は、図２に示すように、収容部１３の中央Ｃと蒸気開放部４０の中央とを結んだ仮想線Ｌ２に直交するように形成され、すなわち、仮想線Ｌ２との接点における長手方向延在部５１の接線Ｌ１が、仮想線Ｌ２に直交するように形成されている。
なお、長手方向延在部５１の具体的態様は、上記に限定されないが、接線Ｌ１と仮想線Ｌ２との間の角度αが４５°〜１３５°、或いは、仮想線Ｌ１がパウチ１０の中心軸線と略平行となる角度になるように、長手方向延在部５１を形成するのが好ましい。角度α或いは仮想線Ｌ１が、上述した範囲外となると、蒸気抜き部５０の長手方向の両端部が、収容部１３の中央Ｃ側に位置するようになる。このため、図８に示した従来の円形孔と同様の蒸気排出となり良好な蒸気排出が難しくなるため、上述した範囲内とすることが好ましい。
また、長手方向延在部５１は、図３に示すように、仮想線Ｌ４よりも、収容部１３の中央Ｃ側に位置しているが、これに限定されず、仮想線Ｌ４よりも若干、収容部１３の中央Ｃ寄りに設置しても良い。このように設置すると、仮想線Ｌ４までの弱シール部３１が確実に剥離され、長手方向延在部５１が確実に蒸気の噴出口として機能するため好ましい。 As shown in FIG. 3, the steam vent 50 is formed so as to extend in the longitudinal direction (the major axis direction of the ellipse), and has a longitudinally extending portion 51 that faces the weak seal portion 31.
As shown in FIG. 2, the longitudinally extending portion 51 is formed so as to be orthogonal to an imaginary line L2 that connects the center C of the accommodating portion 13 and the center of the steam release portion 40, that is, with the imaginary line L2. A tangent line L1 of the longitudinally extending portion 51 at the contact point is formed so as to be orthogonal to the virtual line L2.
In addition, although the specific aspect of the longitudinal direction extension part 51 is not limited to the above, the angle (alpha) between the tangent L1 and the virtual line L2 is 45 degrees-135 degrees, or the virtual line L1 is the center axis line of the pouch 10 It is preferable to form the longitudinally extending portion 51 so as to have an angle that is substantially parallel to the longitudinal direction. When the angle α or the imaginary line L1 is outside the above-described range, both end portions in the longitudinal direction of the steam release portion 50 are positioned on the center C side of the housing portion 13. For this reason, since it becomes the same steam discharge as the conventional circular hole shown in FIG. 8, and favorable steam discharge becomes difficult, it is preferable to be in the above-mentioned range.
Further, as shown in FIG. 3, the longitudinally extending portion 51 is located closer to the center C side of the accommodating portion 13 than the virtual line L4, but is not limited to this, and is slightly more than the virtual line L4. You may install near the center C of the accommodating part 13. FIG. When installed in this manner, the weak seal portion 31 up to the imaginary line L4 is surely peeled off, and the longitudinally extending portion 51 functions reliably as a vapor jet port.

このようにして得られたパウチ１０では、蒸気抜きシール部３０が、蒸気抜きシール部３０の周方向に弱シール部３１に隣接して形成された強シール部３２を有している。
これにより、パウチ１０の膨張時に、パウチ１０の一部が折れ曲がったり、パウチ１０の膨らみ方に偏りが生じた場合であっても、図５に示すように、剥離によって蒸気抜きシール部３０の外周側と内周側とが連通する箇所を弱シール部３１に誘導することが可能なため、蒸気抜きシール部３０の剥離や蒸気開放部４０の密接状態の解除が進行する方向を点線Ｂ１から点線Ｂ５に方向に良好に制御し、蒸気の排出を良好に行うことができる。
なお、強シール部３２においては、多少の部分的な剥離は生じるが、蒸気抜きシール部３０の外周側と内周側とが連通することはない。 In the pouch 10 thus obtained, the steam vent seal part 30 has a strong seal part 32 formed adjacent to the weak seal part 31 in the circumferential direction of the steam vent seal part 30.
As a result, even when a part of the pouch 10 is bent or the pouch 10 is unevenly swelled when the pouch 10 is inflated, as shown in FIG. Since the place where the side and the inner peripheral side communicate with each other can be guided to the weak seal portion 31, the direction in which the release of the steam release seal portion 30 or the release of the close state of the steam release portion 40 proceeds from the dotted line B1 to the dotted line B5 can be controlled well in the direction, and steam can be discharged well.
In the strong seal portion 32, some partial peeling occurs, but the outer peripheral side and the inner peripheral side of the steam release seal portion 30 do not communicate with each other.

また、上述したように、蒸気抜きシール部３０の剥離や蒸気開放部４０の密接状態の解除が進行する方向を制御することが可能であるため、パウチ１０上の自動蒸気抜き機構２０を形成する位置や、蒸気抜き部５０の向き等の設計自由度を向上することができる。   Moreover, since it is possible to control the direction in which the release of the steam release seal part 30 and the release of the close contact state of the steam release part 40 proceed as described above, the automatic steam release mechanism 20 on the pouch 10 is formed. The degree of freedom in design such as the position and the direction of the steam vent 50 can be improved.

以上、本発明の実施形態を詳述したが、本発明は上記実施形態に限定されるものではなく、特許請求の範囲に記載された本発明を逸脱することなく種々の設計変更を行なうことが可能である。   As mentioned above, although embodiment of this invention was explained in full detail, this invention is not limited to the said embodiment, A various design change can be performed without deviating from this invention described in the claim. Is possible.

例えば、積層フィルム１１の具体的態様は、ポリエステル、ポリプロピレン、ポリアミド等の合成樹脂性フィルムや、これら合成樹脂性フィルムにガスバリア性や水分バリア性を付与したコーティングフィルム又は蒸着フィルム等の公知の合成樹脂性フィルムを積層したり、該合成樹脂製フィルムに紙またはアルミ箔を積層すること等で形成されたものであれば、如何なるものでもよい。
また、上述した実施形態では、１枚の積層フィルム１１を二つ折りし、折り返した辺以外の残り３辺を熱接着することでパウチ１０を袋状に成形しているが、パウチ１０の具体的態様は、これに限定されず、例えば、２枚の積層フィルム１１を重ね、積層フィルム１１の４辺を熱接着することでパウチ１０を袋状に成形する等、様々な公知形状のパウチを用いてもよい。また、パウチ１０の形状は、上述した実施形態で示した四角形状以外の、例えば台形や、一部に凹凸のある異形形状等、如何なる形状としてもよい。
また、上述した実施形態では、パウチ１０の内容物が食品であるものとして説明したが、内容物の具体的態様は、食品に限定されない。 For example, the specific mode of the laminated film 11 is a known synthetic resin such as a synthetic resin film such as polyester, polypropylene or polyamide, or a coating film or vapor deposition film in which a gas barrier property or moisture barrier property is imparted to these synthetic resin films. Any film may be used as long as it is formed by laminating a conductive film or laminating paper or aluminum foil on the synthetic resin film.
In the above-described embodiment, the pouch 10 is formed into a bag shape by folding one laminated film 11 in half and thermally bonding the remaining three sides other than the folded side. The embodiment is not limited to this. For example, a pouch 10 having various known shapes is used, for example, two laminated films 11 are stacked and four sides of the laminated film 11 are thermally bonded to form the pouch 10 into a bag shape. May be. Further, the shape of the pouch 10 may be any shape other than the quadrangular shape shown in the above-described embodiment, for example, a trapezoidal shape or a deformed shape having a portion of unevenness.
Moreover, although embodiment mentioned above demonstrated as what the content of the pouch 10 was a foodstuff, the specific aspect of a content is not limited to a foodstuff.

また、上述した実施形態では、蒸気抜きシール部３０が、外縁シール部１２の内側の隅に形成されているものとして説明したが、蒸気抜きシール部３０の具体的態様は、上記に限定されず、例えば、パウチ１０の上部の中央部に蒸気抜きシール部３０を形成してもよい。
また、上述した実施形態では、蒸気抜きシール部３０が、外縁シール部１２から独立して形成されているものとして説明したが、蒸気抜きシール部３０の具体的態様は、上記に限定されず、例えば、外縁シール部１２に連続するように蒸気抜きシール部３０を形成してもよい。
また、上述した実施形態では、弱シール部３１と強シール部３２との間で、蒸気抜きシール部３０の周方向に見た場合の幅に変化を付けることにより、耐剥離性に差を設けたが、耐剥離性に強弱を付ける手法は、如何なるものでもよく、例えば、熱接着を行う時間を変えることで接着強度に強弱を付けることにより、耐剥離性に差を設けてもよい。
また、上述した実施形態では、蒸気抜き部５０が、重ねた表裏の積層フィルム１１の両方に形成されているものとして説明したが、蒸気抜き部５０を、重ねた表裏の積層フィルム１１の一方のみに形成してもよい。 Further, in the embodiment described above, the steam vent seal portion 30 has been described as being formed at the inner corner of the outer edge seal portion 12, but the specific mode of the steam vent seal portion 30 is not limited to the above. For example, the steam release seal portion 30 may be formed in the central portion of the upper portion of the pouch 10.
Further, in the embodiment described above, the steam vent seal portion 30 has been described as being formed independently from the outer edge seal portion 12, but the specific mode of the steam vent seal portion 30 is not limited to the above, For example, the steam release seal portion 30 may be formed so as to be continuous with the outer edge seal portion 12.
Moreover, in embodiment mentioned above, a difference is provided in peeling resistance by attaching a change in the width | variety at the time of seeing in the circumferential direction of the steam removal seal | sticker part 30 between the weak seal | sticker part 31 and the strong seal | sticker part 32. However, any method may be used to increase or decrease the peel resistance. For example, a difference may be provided in the peel resistance by adding or decreasing the adhesive strength by changing the time for performing thermal bonding.
In the above-described embodiment, the steam vent 50 has been described as being formed on both the stacked front and back laminated films 11. However, the steam vent 50 is only one of the stacked front and back laminated films 11. You may form in.

また、上述した実施形態では、蒸気抜きシール部３０の周方向における弱シール部３１の両側に、強シール部３２を形成したが、図６（ａ）〜（ｃ）に示す例のように、弱シール部３１の一方側のみに、強シール部３２を形成してもよい。
また、図６（ｄ）や（ｅ）に示す例のように、弱シール部３１の両側に突出した強シール部３２の少なくとも一部が、上述した収容部１３の中央Ｃと蒸気開放部４０の中央Ｃとを結んだ仮想線Ｌ２（図２参照）に向かうように形成してもよい。
また、上述した実施形態では、蒸気抜き部５０として、短軸、長軸を有する楕円孔に形成した例を挙げたが、蒸気抜き部５０の具体的態様は、例えば、図６（ｆ）に示すように、短辺、長辺を有する三角形状等の蒸気抜き部５０、または図６（ｇ）や（ｈ）に示すように、スリット状の蒸気抜き部５０等、如何なる形状でもよい。
また、上述した実施形態では、蒸気抜き部５０の全体が、蒸気開放部４０に形成されているものとして説明したが、蒸気抜き部５０の形成位置は上記に限定されず、例えば、図６（ｈ）に示すように、後述するスリット状の蒸気抜き部５０の一部を、蒸気抜きシール部３０に形成してもよい。 In the embodiment described above, the strong seal portions 32 are formed on both sides of the weak seal portion 31 in the circumferential direction of the steam release seal portion 30, as in the examples shown in FIGS. The strong seal portion 32 may be formed only on one side of the weak seal portion 31.
Further, as in the example shown in FIGS. 6D and 6E, at least a part of the strong seal portion 32 projecting on both sides of the weak seal portion 31 includes the center C of the housing portion 13 and the steam release portion 40 described above. You may form so that it may go to the virtual line L2 (refer FIG. 2) which tied the center C of no.
In the above-described embodiment, an example in which the vapor vent 50 is formed in an elliptical hole having a short axis and a long axis has been described, but a specific mode of the vapor vent 50 is illustrated in FIG. As shown, the shape may be any shape, such as a triangle-shaped steam vent 50 having short sides and long sides, or a slit-shaped steam vent 50 as shown in FIGS. 6 (g) and 6 (h).
In the above-described embodiment, the entire steam vent 50 is described as being formed in the steam release portion 40. However, the formation position of the steam vent 50 is not limited to the above, and for example, FIG. As shown in h), a part of a slit-like steam vent 50 described later may be formed on the steam vent seal 30.

また、蒸気抜き部５０の他の態様として、図７に示すように、蒸気開放部４０に形成されたスリット両端部５２と、スリット両端部５２から弱シール部３１よりも遠い領域に向かって形成され、スリット両端部５２を繋ぐスリット中間部５３とから構成されたスリットとして、蒸気抜き部５０を形成してもよい。
図７に示す例では、スリット両端部５２を結んだ仮想線Ｌ３と仮想線Ｌ２との間の角度αが４５°〜１３５°、或いは、仮想線Ｌ３がパウチ１０の中心軸線と略平行となる角度に設定され、また、スリット両端部５２は、仮想線Ｌ４よりも収容部１３の中央Ｃ側に形成されている。このようにスリットを形成することにより、スリットにより区画された可動片部５４が蒸気開放部４０に設けられる。 Further, as another aspect of the steam vent 50, as shown in FIG. 7, the slit both ends 52 formed in the steam release portion 40, and the slit both ends 52 are formed toward a region farther than the weak seal portion 31. The steam vent 50 may be formed as a slit composed of the slit middle part 53 connecting the slit both ends 52.
In the example shown in FIG. 7, the angle α between the virtual line L3 connecting the slit both ends 52 and the virtual line L2 is 45 ° to 135 °, or the virtual line L3 is substantially parallel to the central axis of the pouch 10. Further, the slit both ends 52 are formed closer to the center C side of the accommodating portion 13 than the virtual line L4. By forming the slit in this way, the movable piece portion 54 partitioned by the slit is provided in the steam release portion 40.

なお、図６（ａ）〜（ｈ）、図７に示す例においてはいずれも、図１に示す例と同様に、自動蒸気抜き機構２０が、外縁シール部１２の内側の隅に形成されている。
ただし、図６（ｃ）〜（ｈ）に示す例においては、自動蒸気抜き機構２０を、外縁シール部１２の内側の上部中央等に形成することが可能である。
外縁シール部１２の内側の隅部以外のパウチ１０上部位置に自動蒸気抜き機構２０を形成する場合においては、蒸気抜き部５０を次のように形成する。蒸気抜き部５０の全体形状が短軸、長軸を有する楕円状に形成されている場合においては、仮想線Ｌ２と長手方向延在部５１との接線Ｌ１が（図２、図３参照）、蒸気抜き部５０がスリット状に形成されている場合においてはスリット両端部５２を結んだ仮想線Ｌ３が（図７参照）、パウチ１０の中心Ｃに対向するように設置すると良い。また、この蒸気抜き部５０の設置方向に併せて、弱シール部３１と強シール部３２の位置関係を、図６（ｃ）〜（ｈ）と同様な位置関係で設置すればよい。このように蒸気抜き機構２０を設置することにより、蒸気抜きシール部３０の剥離や蒸気開放部４０の密接状態の解除が進行する方向を制御しつつ、蒸気の噴出口を大きく確保することができる。 In each of the examples shown in FIGS. 6A to 6H and FIG. 7, the automatic steam release mechanism 20 is formed at the inner corner of the outer edge seal portion 12 as in the example shown in FIG. Yes.
However, in the example shown in FIGS. 6C to 6H, the automatic steam release mechanism 20 can be formed at the upper center inside the outer edge seal portion 12 or the like.
In the case where the automatic steam release mechanism 20 is formed at the upper position of the pouch 10 other than the inner corner of the outer edge seal part 12, the steam release part 50 is formed as follows. In the case where the overall shape of the vapor vent 50 is formed in an elliptical shape having a short axis and a long axis, the tangent line L1 between the imaginary line L2 and the longitudinally extending portion 51 (see FIGS. 2 and 3), When the steam vent 50 is formed in a slit shape, the virtual line L3 connecting the slit ends 52 (see FIG. 7) may be installed so as to face the center C of the pouch 10. Moreover, what is necessary is just to install the positional relationship of the weak seal | sticker part 31 and the strong seal | sticker part 32 by the positional relationship similar to FIG.6 (c)-(h) according to the installation direction of this vapor removal part 50. FIG. By installing the steam release mechanism 20 in this way, it is possible to secure a large steam outlet while controlling the direction in which the release of the steam release seal part 30 and the release of the close state of the steam release part 40 proceed. .

また、図６（ａ）又は図６（ｂ）に示す例のように、蒸気抜き部５０の接線Ｌ１（図２，図３参照）又は仮想線Ｌ３（図７参照）を、外縁シール部１２のうち、パウチ１０の両脇の外縁シール部１２（サイドシール部）と平行な位置に形成する場合においては、蒸気抜き機構２０は、外縁シール部１２の内側の隅部のみに形成することが可能である。
図６（ａ）又は図６（ｂ）の蒸気抜き機構２０を外縁シール部１２の内側の隅部に形成した場合、通常は、パウチ１０の収容部１３の中央Ｃから放射状に力が与えられるため、蒸気抜きシール部３０の剥離は、図６（ａ）又は図６（ｂ）の右斜め下方側から開始される。そして、蒸気抜きシール部３０の剥離は、強シール部３２側が遅く、弱シール部３１の中央Ｃ側（図面右側）が早く進行していく。このため、蒸気抜きシール部３０の剥離が蒸気抜き部５０に到達した時点では、蒸気抜きシール部３０の剥離は、蒸気抜き部５０の長手方向と略平行となる。すると、中央Ｃから放射状に広がっていた蒸気は、蒸気抜き部５０の長手方向延在部５１（図面右側）に向かって進行方向が変更され、パウチ１０から排出される。しかし、電子レンジによって内容物が加熱されると、内容物の飛び跳ねは、パウチ１０の下部から上部に向かって起こるため、蒸気排出開始後も剥離をしていない強シール部３２の下方側の存在により、蒸気抜き孔５０からの噴き出しが防止される。
このように、図６（ａ）又は図６（ｂ）に示す例のように、蒸気抜き部５０の長手方向をパウチ１０の縦方向に沿って形成すると共に、強シール部３２を少なくともパウチ１０の縦方向下部に形成することにより、蒸気抜きシール部３０の剥離の進行方向を制御すると共に、蒸気開放部４０の剥離と蒸気抜き部５０との接点付近に形成される蒸気の噴出口を大きく確保でき、且つ、内容物の噴き出しを防止することができる。 Further, as in the example shown in FIG. 6A or 6B, the tangent line L1 (see FIGS. 2 and 3) or the virtual line L3 (see FIG. 7) of the steam vent 50 is connected to the outer edge seal portion 12. Among them, when forming at positions parallel to the outer edge seal portions 12 (side seal portions) on both sides of the pouch 10, the steam release mechanism 20 may be formed only at the corners inside the outer edge seal portion 12. Is possible.
When the steam venting mechanism 20 of FIG. 6A or FIG. 6B is formed at the inner corner of the outer edge seal portion 12, usually a force is applied radially from the center C of the housing portion 13 of the pouch 10. Therefore, peeling of the steam release seal part 30 is started from the diagonally lower right side of FIG. 6A or 6B. Then, the peeling of the steam release seal part 30 proceeds slowly on the strong seal part 32 side and progresses quickly on the center C side (right side in the drawing) of the weak seal part 31. For this reason, when the peeling of the steam release seal part 30 reaches the steam release part 50, the peeling of the steam release seal part 30 is substantially parallel to the longitudinal direction of the steam release part 50. Then, the steam that has spread radially from the center C is changed in the traveling direction toward the longitudinally extending portion 51 (right side of the drawing) of the steam vent 50 and is discharged from the pouch 10. However, when the contents are heated by the microwave oven, the contents jump from the lower part of the pouch 10 toward the upper part. Thus, the ejection from the vapor vent hole 50 is prevented.
Thus, as in the example shown in FIG. 6A or FIG. 6B, the longitudinal direction of the steam vent 50 is formed along the longitudinal direction of the pouch 10, and the strong seal portion 32 is at least provided in the pouch 10. By forming the lower part in the vertical direction, the direction of separation of the steam release seal part 30 is controlled, and the steam outlet formed near the contact point between the release of the steam release part 40 and the steam release part 50 is enlarged. It can be ensured and the ejection of the contents can be prevented.

また、上述した複数の実施形態や変形例の各構成を、任意に組み合わせてパウチ１０を構成しても何ら構わない。また、上述した実施形態においては、各強シール部３２が、弱シール部３１に連続した一部分として形成されているが、図６（ｉ）に示すように、弱シール部３１に連続した部分３２ａと、部分３２ａから若干離れた位置に形成された部分３２ｂとから、各強シール部３２を構成してもよい。この場合、部分３２ｂの数量は１つ以上であればよい。また、図６（ｉ）では、蒸気抜きシール部３０の外周側に部分３２ｂを形成したが、蒸気抜きシール部３０の内周側に部分３２ｂを形成してもよい。   In addition, the pouch 10 may be configured by arbitrarily combining the configurations of the above-described embodiments and modifications. Further, in the above-described embodiment, each strong seal portion 32 is formed as a part continuous to the weak seal portion 31, but as shown in FIG. 6 (i), a portion 32 a continuous to the weak seal portion 31. And each strong seal | sticker part 32 may be comprised from the part 32b formed in the position a little away from the part 32a. In this case, the quantity of the part 32b should just be one or more. In FIG. 6I, the portion 32 b is formed on the outer peripheral side of the steam release seal portion 30, but the portion 32 b may be formed on the inner peripheral side of the steam release seal portion 30.

１０ ・・・ パウチ
１１ ・・・ 積層フィルム
１２ ・・・ 外縁シール部
１３ ・・・ 収容部
２０ ・・・ 自動蒸気抜き機構
３０ ・・・ 蒸気抜きシール部
３０ａ ・・・ 対向領域
３０ｂ ・・・ 非対向領域
３１ ・・・ 弱シール部
３２ ・・・ 強シール部
４０ ・・・ 蒸気開放部
５０ ・・・ 蒸気抜き部
５１ ・・・ 長手方向延在部
５２ ・・・ スリット両端部
５３ ・・・ スリット中間部
Ｃ ・・・ 収容部の中央 DESCRIPTION OF SYMBOLS 10 ... Pouch 11 ... Laminated film 12 ... Outer edge seal part 13 ... Accommodating part 20 ... Automatic steam release mechanism 30 ... Steam release seal part 30a ... Opposite area 30b ... Non-opposing area 31 ・ ・ ・ Weak seal part 32 ・ ・ ・ Strong seal part 40 ・ ・ ・ Steam release part 50 ・ ・ ・ Steam release part 51 ・ ・ ・ Longitudinal extension part 52 ・ ・ ・ Slit both end parts 53 ・ ・・ Slit middle part C ... Center of the housing part

Claims (9)

自動蒸気抜き機構を備えた電子レンジ用パウチであって、
前記自動蒸気抜き機構は、環状の蒸気抜きシール部と、前記蒸気抜きシール部によって囲まれた蒸気開放部と、前記蒸気開放部に形成された蒸気抜き部とを有し、
前記蒸気抜きシール部は、弱シール部と、前記蒸気抜きシール部の周方向に前記弱シール部に隣接して形成され、前記弱シール部よりも耐剥離性が高い強シール部とを有していることを特徴とする電子レンジ用パウチ。 A microwave oven pouch equipped with an automatic steam release mechanism,
The automatic steam release mechanism has an annular steam release seal part, a steam release part surrounded by the steam release seal part, and a steam release part formed in the steam release part,
The steam release seal part includes a weak seal part and a strong seal part formed adjacent to the weak seal part in the circumferential direction of the steam release seal part and having higher peel resistance than the weak seal part. A pouch for a microwave oven characterized by 前記強シール部は、前記蒸気抜きシール部の周方向に見た場合の幅が、前記弱シール部よりも広い部位であることを特徴とする請求項１に記載の電子レンジ用パウチ。   2. The microwave oven pouch according to claim 1, wherein the strong seal portion is a portion having a width wider than that of the weak seal portion when viewed in a circumferential direction of the steam release seal portion. 前記弱シール部は、前記蒸気抜きシール部の外周側に凸状の形状を有していることを特徴とする請求項１または請求項２に記載の電子レンジ用パウチ。   3. The microwave oven pouch according to claim 1, wherein the weak seal portion has a convex shape on an outer peripheral side of the steam release seal portion. 前記強シール部は、前記蒸気抜きシール部の周方向において、前記弱シール部の両側に形成されていることを特徴とする請求項１乃至請求項３のいずれかに記載の電子レンジ用パウチ。   The microwave oven pouch according to any one of claims 1 to 3, wherein the strong seal portion is formed on both sides of the weak seal portion in a circumferential direction of the steam release seal portion. 前記弱シール部の少なくとも一部は、前記弱シール部の両側に形成された左右の前記強シール部を結んだ仮想線よりも、前記パウチの収容部の中央側に形成されていることを特徴とする請求項４に記載の電子レンジ用パウチ。   At least a part of the weak seal portion is formed closer to the center side of the housing portion of the pouch than an imaginary line connecting the left and right strong seal portions formed on both sides of the weak seal portion. The microwave oven pouch according to claim 4. 前記蒸気抜き部は、非円形孔またはスリットとして形成されていることを特徴とする請求項１乃至請求項５のいずれかに記載の電子レンジ用パウチ。   6. The microwave oven pouch according to claim 1, wherein the steam vent is formed as a non-circular hole or a slit. 前記蒸気抜き部は、その全体形状が扁平状に形成され、その短手方向において、前記弱シール部に対向するように形成されていることを特徴とする請求項６に記載の電子レンジ用パウチ。   7. The microwave oven pouch according to claim 6, wherein the entire shape of the steam vent is formed in a flat shape so as to face the weak seal portion in the short direction. . 前記蒸気抜き部は、スリットから成り、
前記スリットは、前記蒸気開放部に形成されたスリット両端部と、前記スリット両端部から前記弱シール部よりも遠い領域に向かって形成され、前記スリット両端部を繋ぐスリット中間部とから構成されていることを特徴とする請求項６に記載の電子レンジ用パウチ。 The steam vent consists of a slit,
The slit is composed of both ends of the slit formed in the vapor opening portion, and a slit intermediate portion that is formed from both ends of the slit toward a region farther than the weak seal portion, and connects the both ends of the slit. The microwave oven pouch according to claim 6. 前記パウチは、重ねた積層フィルムの外縁を熱接着した外縁シール部を有し、
前記蒸気抜きシール部は、前記外縁シール部の内側に独立して形成されていることを特徴とする請求項１乃至請求項８のいずれかに記載の電子レンジ用パウチ。 The pouch has an outer edge seal part that thermally bonds the outer edges of the stacked laminated films,
9. The microwave oven pouch according to any one of claims 1 to 8, wherein the steam release seal portion is independently formed inside the outer edge seal portion.
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WO2019035399A1 (en) * 2017-08-16 2019-02-21 凸版印刷株式会社 Steam-passing type flat pouch
JP2019202794A (en) * 2018-05-22 2019-11-28 凸版印刷株式会社 Packaging bag
JP2021054501A (en) * 2019-09-30 2021-04-08 キョーラク株式会社 Packaging bag for microwave oven
WO2022172871A1 (en) * 2021-02-10 2022-08-18 東洋製罐株式会社 Pouch for microwave oven use

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JP2003192042A (en) * 2001-12-21 2003-07-09 Toyo Seikan Kaisha Ltd Packaging bag for microwave oven, and manufacturing method for package wherein content is filled in the packaging bag for microwave oven
WO2005009869A1 (en) * 2003-07-24 2005-02-03 Toppan Printing Co., Ltd. Packaging bag with steam releasing function and packaging body using the packaging bag

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JP2002171923A (en) * 2000-12-06 2002-06-18 Fujimori Plachemical Co Ltd Food of cooked noodles
JP2003192042A (en) * 2001-12-21 2003-07-09 Toyo Seikan Kaisha Ltd Packaging bag for microwave oven, and manufacturing method for package wherein content is filled in the packaging bag for microwave oven
WO2005009869A1 (en) * 2003-07-24 2005-02-03 Toppan Printing Co., Ltd. Packaging bag with steam releasing function and packaging body using the packaging bag

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Publication number Priority date Publication date Assignee Title
WO2019035399A1 (en) * 2017-08-16 2019-02-21 凸版印刷株式会社 Steam-passing type flat pouch
JP2019034761A (en) * 2017-08-16 2019-03-07 凸版印刷株式会社 Steam-passing type flat pouch
JP2019202794A (en) * 2018-05-22 2019-11-28 凸版印刷株式会社 Packaging bag
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WO2021065762A1 (en) * 2019-09-30 2021-04-08 キョーラク株式会社 Packaging bag for microwave oven use
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WO2022172871A1 (en) * 2021-02-10 2022-08-18 東洋製罐株式会社 Pouch for microwave oven use
JP7164768B1 (en) * 2021-02-10 2022-11-01 東洋製罐株式会社 microwave pouch

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