JP6959845B2 - Ventable packaging bag with the outside - Google Patents

Ventable packaging bag with the outside Download PDF

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JP6959845B2
JP6959845B2 JP2017229682A JP2017229682A JP6959845B2 JP 6959845 B2 JP6959845 B2 JP 6959845B2 JP 2017229682 A JP2017229682 A JP 2017229682A JP 2017229682 A JP2017229682 A JP 2017229682A JP 6959845 B2 JP6959845 B2 JP 6959845B2
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packaging bag
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将洋 長友
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Meiwa Pax Co Ltd
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Description

本発明は外部との通気可能な包装袋に係り、より詳しくは、電子レンジ等により飲食品等の内容物をチャック袋ごと加熱した際に、袋体の外に蒸気を十分に逃がすことができ、チャック部が意図せず外れてしまう虞がなく、且つ加熱による飲食品等の内容物への蒸らし効果を十分に得ることができる包装袋に関する。 The present invention relates to a packaging bag that can be ventilated to the outside, and more specifically, when the contents such as food and drink are heated together with the zipper bag by a microwave oven or the like, steam can be sufficiently released to the outside of the bag body. The present invention relates to a packaging bag in which there is no risk that the chuck portion will come off unintentionally and the effect of steaming the contents such as food and drink by heating can be sufficiently obtained.

従来から、チャックにより袋体開口部を開閉することができ、チャックの閉止時には気密性を保持し、飲食品等の内容物を袋体内部に保存することができる包装袋が使用されている。
このような包装袋の中には、飲食品等の内容物を袋体内部に保存したまま、電子レンジ等により飲食品等の内容物を加熱調理することができるものもある。
Conventionally, a packaging bag has been used in which the opening of the bag body can be opened and closed by a zipper, the airtightness is maintained when the zipper is closed, and the contents such as food and drink can be stored inside the bag body.
In some such packaging bags, the contents of foods and drinks can be cooked by heating in a microwave oven or the like while the contents of foods and drinks are stored inside the bag.

例えば、特許文献1には、袋体内外の通気性を必要とする物品の包装、特に電子レンジ等により加熱調理を行う食品の包装に適した合成樹脂製チャック付袋体が開示されている。
特許文献1の合成樹脂製チャック付袋体は、開口部内側面に合成樹脂製雌雄爪型チャックを設けた袋体において、前記チャックはベース片若しくはテープ状片と一体化して形成されている。前記ベース片若しくはテープ状片はその左右及びチャックを挟んで上下にそれぞれ間隔をおいて前記開口部内側面に面接着されている。前記面接着された接着部は袋体内外の通気必要状況に応じて、前記接着部の長さを決めて隣設する接着部との左右間隔を設定している。一方、前記接着部は必要な接着強度に応じて上下の接着幅を決めて、前記接着部とチャックとの間隔を設定するようにしたことを特徴としている。
また、特許文献1の合成樹脂製チャック付袋体は、通気部が所要幅で袋体の内外をストレート(即ち、通路における開口部側の端部の開口部から袋体の底部側の端部の開口部までが同じ幅)で連通していることも特徴としている。
For example, Patent Document 1 discloses a bag with a synthetic resin chuck suitable for packaging an article that requires air permeability inside and outside the bag, particularly for packaging food that is cooked in a microwave oven or the like.
The bag body with a synthetic resin chuck of Patent Document 1 is a bag body provided with a synthetic resin male and female claw type chuck on the inner side surface of the opening, and the chuck is formed integrally with a base piece or a tape-shaped piece. The base piece or tape-shaped piece is surface-bonded to the inner side surface of the opening at intervals on the left and right sides of the base piece or on the upper and lower sides of the chuck. The surface-bonded adhesive portion determines the length of the adhesive portion and sets the left-right distance from the adjacent adhesive portion according to the need for ventilation inside and outside the bag. On the other hand, the adhesive portion is characterized in that the upper and lower adhesive widths are determined according to the required adhesive strength, and the distance between the adhesive portion and the chuck is set.
Further, in the bag body with a synthetic resin chuck of Patent Document 1, the ventilation portion has a required width and the inside and outside of the bag body are straight (that is, the end portion on the bottom side of the bag body from the opening of the end portion on the opening side in the passage). It is also characterized by communicating with the same width up to the opening of.

特許第3655099号Patent No. 3655099

叙上の通り、特許文献1に開示されている合成樹脂製チャック付袋体は、袋体の全幅にわたって複数の通気部(幅が一定であるストレートの形状)が設けられ、この複数の通気部は袋体の内外を連通している。
このため、電子レンジ等により飲食品等の内容物をチャック付袋体ごと加熱した際に、袋体の内側から外側に抜ける蒸気量が多すぎて十分な蒸らし効果を得ることができず、内容物の加熱ムラが発生し易いという問題点があった。
As described above, the bag body with a zipper made of synthetic resin disclosed in Patent Document 1 is provided with a plurality of ventilation portions (straight shape having a constant width) over the entire width of the bag body, and the plurality of ventilation portions. Communicates inside and outside the bag.
For this reason, when the contents such as food and drink are heated together with the bag body with a zipper by a microwave oven or the like, the amount of steam that escapes from the inside to the outside of the bag body is too large to obtain a sufficient steaming effect. There is a problem that uneven heating of an object is likely to occur.

また、通気部(幅が一定であるストレートの形状)を1つだけ設けた場合、蒸気が袋体の内側から外側に抜け難くなり、滞留した蒸気により袋全体が変形し、通気部が閉塞する等して、チャック外れを引き起こす虞があった。加熱時の早い段階でチャック外れが発生すると、十分な蒸らし効果が得られないという問題もあった。 Further, when only one ventilation part (straight shape having a constant width) is provided, it becomes difficult for steam to escape from the inside to the outside of the bag body, and the entire bag is deformed by the accumulated steam, and the ventilation part is blocked. Therefore, there is a risk of causing the chuck to come off. If the chuck comes off at an early stage during heating, there is also a problem that a sufficient steaming effect cannot be obtained.

本発明は、上記したような従来技術の問題点を解決すべくなされたものであって、電子レンジ等により飲食品等の内容物をチャック袋ごと加熱した際に、袋体の外に蒸気を十分に逃がすことができ、チャック部が意図せず外れてしまう虞がなく、且つ加熱による飲食品等の内容物への蒸らし効果を十分に得ることができる包装袋を提供するものである。 The present invention has been made to solve the above-mentioned problems of the prior art, and when the contents such as food and drink are heated together with the zipper bag by a microwave oven or the like, steam is discharged to the outside of the bag body. It is an object of the present invention to provide a packaging bag that can be sufficiently released, that the chuck portion does not come off unintentionally, and that the effect of steaming the contents such as food and drink by heating can be sufficiently obtained.

請求項1に係る発明は、上方に開口部を有する袋本体部と、
前記袋本体部の前記開口部近傍の内周面に接着されているチャック部とを有する包装袋であって、
前記チャック部は、対向する位置で前記内周面に接着されている雄部及び第1基部を有する第1部分と雌部及び第2基部を有する第2部分とからなり、
前記第1基部及び/又は前記第2基部は、前記内周面との間の一部に未接着領域を有し、
前記未接着領域において、前記袋本体部の内周面と前記第1基部及び/又は前記第2基部との間には通気可能な少なくとも1つの通路が形成されており、
前記通路における前記開口部側の端部の開口径は、前記袋本体部の底部側の端部の開口径よりも大きく、
前記通路は、前記底部側の端部から前記底部側の端部の開口径と同じ開口径で延びる直線部と、前記直線部の端部から前記開口部側の端部に向かうにつれて開口径が拡大する拡大部とを有する
ことを特徴とする、包装袋に関する。
The invention according to claim 1 includes a bag body having an opening at the top and a bag body.
A packaging bag having a chuck portion adhered to an inner peripheral surface in the vicinity of the opening of the bag main body portion.
The chuck portion comprises a first portion having a male portion and a first base portion adhered to the inner peripheral surface at opposite positions, and a second portion having a female portion and a second base portion.
The first base and / or the second base has a non-adhesive region in a part between the first base and / or the inner peripheral surface.
In the unbonded region, at least one ventilable passage is formed between the inner peripheral surface of the bag body and the first base and / or the second base.
Opening diameter of the end portion of the opening side of the passage is much larger than the opening diameter of the end portion of the bottom side of the bag body portion,
The passage has a straight portion extending from the bottom end to the same opening diameter as the bottom end, and an opening diameter increasing from the end of the straight portion toward the opening side end. The present invention relates to a packaging bag, characterized in that it has an expanding portion and an expanding portion.

請求項2に係る発明は、電子レンジによる加熱が可能であることを特徴とする、請求項1に記載の包装袋に関する。 The invention according to claim 2 relates to the packaging bag according to claim 1, wherein the packaging bag can be heated by a microwave oven.

請求項3に係る発明は、前記通路における前記底部側の端部の開口径と前記開口部側の端部の開口径の比率が、1:1.1〜1:6であることを特徴とする、請求項1又は2に記載の包装袋に関する。 The invention according to claim 3 is characterized in that the ratio of the opening diameter of the end portion on the bottom side to the opening diameter of the end portion on the opening side in the passage is 1: 1.1 to 1: 6. The packaging bag according to claim 1 or 2.

請求項4に係る発明は、前記通路は、前記袋本体部における前記チャック部が延びる方向の中心部に1つ設けられていることを特徴とする、請求項1乃至3のいずれか1項に記載の包装袋に関する。 The invention according to claim 4 is characterized in that one passage is provided at the center of the bag body in the direction in which the chuck portion extends, according to any one of claims 1 to 3. Regarding the described packaging bag.

請求項5に係る発明は、複数の前記通路は、互いに間隔を空けて設けられていることを特徴とする、請求項1乃至3のいずれか1項に記載の包装袋に関する。 The invention according to claim 5 relates to the packaging bag according to any one of claims 1 to 3, wherein the plurality of passages are provided at intervals from each other.

請求項6に係る発明は、前記通路における前記底部側の端部と前記開口部側の端部を夫々結ぶ両側の側部は、直線形状、曲線形状、あるいは直線と曲線を組み合わせた形状であることを特徴とする、請求項1乃至5のいずれか1項に記載の包装袋に関する。 In the invention according to claim 6, the side portions on both sides connecting the end on the bottom side and the end on the opening side in the passage are a straight line shape, a curved shape, or a shape obtained by combining a straight line and a curved line. The packaging bag according to any one of claims 1 to 5, wherein the packaging bag is characterized in that.

請求項に係る発明は、前記直線部は、前記雄部及び/又は前記雌部を越えて前記開口部側まで延び、前記拡大部は、前記雄部及び/又は前記雌部よりも前記開口部側に位置していることを特徴とする、請求項に記載の包装袋に関する。 In the invention according to claim 7 , the straight portion extends beyond the male portion and / or the female portion to the opening side, and the enlarged portion is the opening more than the male portion and / or the female portion. The packaging bag according to claim 6 , wherein the packaging bag is located on the part side.

請求項に係る発明は、前記底部は、袋本体部が自立可能となるようにガゼット部を有していることを特徴とする、請求項1乃至のいずれか1項に記載の包装袋に関する。 The invention according to claim 8, wherein the bottom, characterized in that the bag body portion has a gusset portion so as to enable self-standing packaging bag according to any one of claims 1 to 7 Regarding.

請求項1に係る発明によれば、上方に開口部を有する袋本体部と、前記袋本体部の前記開口部近傍の内周面に接着されているチャック部とを有する包装袋であって、前記チャック部は、対向する位置で前記内周面に接着されている雄部及び第1基部を有する第1部分と雌部及び第2基部を有する第2部分とからなり、前記第1基部及び/又は前記第2基部は、前記内周面との間の一部に未接着領域を有し、前記未接着領域において、前記袋本体部の内周面と前記第1基部及び/又は前記第2基部との間には通気可能な少なくとも1つの通路が形成されており、前記通路における前記開口部側の端部の開口径は、前記袋本体部の底部側の端部の開口径よりも大きいため、ガス等が発生する内容物(味噌、洗剤等)を充填する、揮発成分を利用する内容物(芳香剤、消臭剤等)を充填する場合などに、袋本体部と外部との間をガスや揮発成分等を含む空気がスムーズに通過することができ、これらの内容物を長期間安定して充填しておくことができる。
前記通路は、前記底部側の端部から前記底部側の端部の開口径と同じ開口径で延びる直線部と、前記直線部の端部から前記開口部側の端部に向かうにつれて開口径が拡大する拡大部とを有するため、電子レンジ等により飲食品等の内容物を本発明の包装袋ごと加熱した際に、より容易且つ安定に袋本体部内に生じる蒸気を袋本体部の外に逃がすことができる。
According to the invention of claim 1, it is a packaging bag having a bag main body portion having an opening at the top and a chuck portion adhering to an inner peripheral surface of the bag main body near the opening. The chuck portion is composed of a first portion having a male portion and a first base portion bonded to the inner peripheral surface at opposite positions, and a second portion having a female portion and a second base portion, and the first base portion and the chuck portion. / Or the second base portion has an unbonded region in a part between the inner peripheral surface and the inner peripheral surface of the bag main body portion and the first base portion and / or the first portion in the unbonded region. At least one ventilable passage is formed between the two bases, and the opening diameter of the opening-side end of the passage is larger than the opening diameter of the bottom-side end of the bag body. Because it is large, when filling contents that generate gas etc. (miso, detergent, etc.), or filling contents that use volatile components (fragrances, deodorants, etc.), the bag body and the outside Air containing gas, volatile components, etc. can smoothly pass between them, and these contents can be stably filled for a long period of time.
The passage has a straight portion extending from the bottom end to the same opening diameter as the bottom end, and an opening diameter increasing from the end of the straight portion toward the opening side end. Since it has an expanding portion, when the contents such as food and drink are heated together with the packaging bag of the present invention by a microwave oven or the like, the steam generated in the bag main body is released to the outside of the bag main body more easily and stably. be able to.

加えて、空気を通すための通路が、チャック部の取り付けと同時に形成されるので、包装袋の製造時に、通路を設ける別工程が不要となり、製造効率に優れている。
また、チャック部の構造自体を加工していないので、チャックが閉め難くなる等の閉め損ねが生じ難い。
In addition, since the passage for passing air is formed at the same time as the attachment of the chuck portion, a separate step of providing the passage is not required at the time of manufacturing the packaging bag, and the manufacturing efficiency is excellent.
Further, since the structure of the chuck portion itself is not processed, it is unlikely that the chuck will be difficult to close and other failures will occur.

請求項2に係る発明によれば、電子レンジによる加熱が可能であるため、電子レンジ等により飲食品等の内容物を本発明の包装袋ごと加熱した際に、袋本体部が折れ曲がったとしても、通路を確保することができるため、袋本体部内に生じる蒸気を袋本体部の外に逃がすことができ、チャック部が意図せず外れてしまう虞がなく、容易且つ安定に飲食品等の内容物を加熱調理することができる。 According to the invention of claim 2, since heating by a microwave oven is possible, even if the bag body is bent when the contents such as food and drink are heated together with the packaging bag of the present invention by a microwave oven or the like. Since the passage can be secured, the steam generated in the bag body can be released to the outside of the bag body, and there is no risk that the chuck part will come off unintentionally, and the contents of food and drink etc. can be easily and stably. You can cook things.

さらに、前記通路における前記開口部側の端部の開口径は、前記袋本体部の底部側の端部の開口径よりも大きいため、電子レンジ等により飲食品等の内容物を本発明の包装袋ごと加熱した際に、通路において底部側の端部から開口部側の端部に向けて圧力が低くなるように圧力差を形成できる。
この圧力差のため、袋本体部の蒸気を外部に円滑に放出することができる。
そのため、電子レンジ等により飲食品等の内容物を本発明の包装袋ごと加熱した際に、袋体の外に蒸気を十分に逃がすことができ、チャック部が意図せず外れてしまう虞がなく、且つ加熱による飲食品等の内容物への蒸らし効果を十分に得ることができる。
Further, since the opening diameter of the end on the opening side in the passage is larger than the opening diameter of the end on the bottom side of the bag body, the contents such as food and drink are packaged in the present invention by a microwave oven or the like. When the whole bag is heated, a pressure difference can be formed so that the pressure decreases from the end on the bottom side to the end on the opening side in the passage.
Due to this pressure difference, the steam in the bag body can be smoothly released to the outside.
Therefore, when the contents such as food and drink are heated together with the packaging bag of the present invention by a microwave oven or the like, steam can be sufficiently released to the outside of the bag body, and there is no possibility that the chuck portion is unintentionally removed. Moreover, the steaming effect on the contents such as food and drink by heating can be sufficiently obtained.

請求項3に係る発明によれば、前記通路における前記底部側の端部の開口径と前記開口部側の端部の開口径の比率が、1:1.1〜1:6であるため、電子レンジ等により飲食品等の内容物を本発明の包装袋ごと加熱した際に、通路において底部側の端部から開口部側の端部に向けて圧力が低くなるように圧力差を形成できる。
加えて、前記通路における前記底部側の端部の開口径と前記開口部側の端部の開口径の比率が、1:1.1〜1:6であるため、より圧力差を大きくすることができる。
この大きな圧力差により、電子レンジ等により飲食品等の内容物を本発明の包装袋ごと加熱した際に、より容易に袋本体部内に生じる蒸気を袋本体部の外に逃がすことができる。
According to the invention of claim 3, the ratio of the opening diameter of the end on the bottom side to the opening diameter of the end on the opening side in the passage is 1: 1.1 to 1: 6. When the contents such as food and drink are heated together with the packaging bag of the present invention by a microwave oven or the like, a pressure difference can be formed so that the pressure decreases from the end on the bottom side to the end on the opening side in the passage. ..
In addition, since the ratio of the opening diameter of the end on the bottom side to the opening diameter of the end on the opening side in the passage is 1: 1.1 to 1: 6, the pressure difference should be further increased. Can be done.
Due to this large pressure difference, when the contents such as food and drink are heated together with the packaging bag of the present invention by a microwave oven or the like, the steam generated in the bag body can be more easily released to the outside of the bag body.

請求項4に係る発明によれば、前記通路は、前記袋本体部における前記チャック部が延びる方向の中心部に1つ設けられているため、電子レンジ等により飲食品等の内容物を本発明の包装袋ごと加熱した際に、より容易に袋本体部内に生じる蒸気を袋本体部の外に逃がすことができる。
さらに、電子レンジ等により飲食品等の内容物を本発明の包装袋ごと加熱した際に、袋本体部内の蒸気が、前記チャック部が延びる方向の中心部から抜けるため、袋本体部の変形を防ぐことができ、より容易且つ安定に請求項1乃至3に係る効果を奏することができる。
According to the invention of claim 4, since one passage is provided at the center of the bag body in the direction in which the chuck portion extends, the contents of food and drink and the like can be obtained by using a microwave oven or the like. When the entire packaging bag is heated, the steam generated in the bag body can be more easily released to the outside of the bag body.
Further, when the contents such as food and drink are heated together with the packaging bag of the present invention by a microwave oven or the like, the steam in the bag body portion escapes from the central portion in the direction in which the chuck portion extends, so that the bag body portion is deformed. It can be prevented, and the effects according to claims 1 to 3 can be more easily and stably achieved.

請求項5に係る発明によれば、複数の前記通路は、互いに間隔を空けて設けられているため、電子レンジ等により飲食品等の内容物を本発明の包装袋ごと加熱した際に、より容易且つ安定に袋本体部内に生じる蒸気を袋本体部の外に逃がすことができる。 According to the invention of claim 5, since the plurality of passages are provided at intervals from each other, when the contents such as food and drink are heated together with the packaging bag of the present invention by a microwave oven or the like, more The steam generated in the bag body can be easily and stably released to the outside of the bag body.

請求項6に係る発明によれば、前記通路における前記底部側の端部と前記開口部側の端部を夫々結ぶ両側の側部は、直線形状、曲線形状、あるいは直線と曲線を組み合わせた形状であるため、電子レンジ等により飲食品等の内容物を本発明の包装袋ごと加熱した際に、抜けていく蒸気の量を所望の量に調整することができる。
また、装飾性の高い形状に通路を形成することができる。
According to the invention of claim 6, the side portions on both sides connecting the end portion on the bottom side and the end portion on the opening side in the passage have a linear shape, a curved shape, or a shape obtained by combining a straight line and a curved line. Therefore, when the contents such as food and drink are heated together with the packaging bag of the present invention in a microwave oven or the like, the amount of steam that escapes can be adjusted to a desired amount.
In addition, the passage can be formed in a highly decorative shape.

請求項に係る発明によれば、前記直線部は、前記雄部及び/又は前記雌部を越えて前記開口部側まで延び、前記拡大部は、前記雄部及び/又は前記雌部よりも前記開口部側に位置しているため、通路の直線部は膨らみ難くすることができ、拡大部は膨らみ易くすることができる。
これにより、内容物が通路の直線部から袋本体部の外に漏れ出ることを防止でき、且つ拡大部の通路が膨らみ易いため、通路において底部側の端部から開口部側の端部に向けて圧力が低くなるように圧力差をより容易に形成することができ、蒸気を袋本体部の外に排出し易くすることができる。
According to the invention of claim 7 , the straight portion extends beyond the male portion and / or the female portion to the opening side, and the enlarged portion is larger than the male portion and / or the female portion. Since it is located on the opening side, the straight portion of the passage can be made difficult to swell, and the enlarged portion can be made easy to swell.
As a result, it is possible to prevent the contents from leaking from the straight portion of the passage to the outside of the bag main body portion, and the passage of the enlarged portion easily swells. The pressure difference can be more easily formed so that the pressure becomes lower, and the steam can be easily discharged to the outside of the bag body.

請求項に係る発明によれば、前記底部は、袋本体部が自立可能となるようにガゼット部を有しているため、電子レンジ等で飲食品等の内容物を本発明の包装袋ごと加熱する際、包装袋を直立させた状態にすることができ、より容易且つ安定に袋本体部内に生じる蒸気を袋本体部の外に逃がすことができる。 According to the invention of claim 8 , since the bottom portion has a gusset portion so that the bag body portion can stand on its own, the contents such as food and drink can be put together with the packaging bag of the present invention in a microwave oven or the like. When heating, the packaging bag can be kept upright, and the steam generated in the bag body can be more easily and stably released to the outside of the bag body.

本発明に係る包装袋の正面図である。It is a front view of the packaging bag which concerns on this invention. 図1のA−A線断面図である。FIG. 1 is a cross-sectional view taken along the line AA of FIG. 本発明に係る包装袋のチャック部の雄部の要部拡大図である。It is an enlarged view of the main part of the male part of the chuck part of the packaging bag which concerns on this invention. 図1のB−B線断面図である。FIG. 1 is a cross-sectional view taken along the line BB of FIG. 図1のC−C線断面図である。FIG. 5 is a cross-sectional view taken along the line CC of FIG. 本発明に係る包装袋の通路の拡大正面図である。It is an enlarged front view of the passage of the packaging bag which concerns on this invention. 本発明に係る包装袋の通路のその他の例の正面図である。It is a front view of another example of the passage of the packaging bag which concerns on this invention. 比較例の包装袋の正面図である。It is a front view of the packaging bag of the comparative example.

以下、本発明に係る包装袋の好適な実施形態について、添付図面を参照しながら説明する。
図1は、本発明に係る包装袋の正面図である。図2は、図1のA−A線断面図である。図3は、本発明に係る包装袋のチャック部の雄部の要部拡大図である。図4は、図1のB−B線断面図である。図5は、図1のC−C線断面図である。図6は、本発明に係る包装袋の通路部の拡大正面図である。
尚、図1において、明確化のために、チャック部(3)の接着領域(34)は薄いハッチングで示し、非接着領域(35)は白抜きで示している。また、シール部(24)及び底部(22)のシール部にはハッチングを施している。
Hereinafter, preferred embodiments of the packaging bag according to the present invention will be described with reference to the accompanying drawings.
FIG. 1 is a front view of the packaging bag according to the present invention. FIG. 2 is a cross-sectional view taken along the line AA of FIG. FIG. 3 is an enlarged view of a main part of a male portion of a chuck portion of a packaging bag according to the present invention. FIG. 4 is a cross-sectional view taken along the line BB of FIG. FIG. 5 is a cross-sectional view taken along the line CC of FIG. FIG. 6 is an enlarged front view of a passage portion of the packaging bag according to the present invention.
In FIG. 1, for clarification, the adhesive region (34) of the chuck portion (3) is shown by thin hatching, and the non-adhesive region (35) is shown by white. Further, the seal portions of the seal portion (24) and the bottom portion (22) are hatched.

図1〜図2に示す如く、本発明に係る包装袋(1)は、上方に開口部(21)と底部(22)を有する袋本体部(2)と、袋本体部(2)の開口部(21)近傍の内周面(23)に接着されているチャック部(3)とを備えている。 As shown in FIGS. 1 and 2, the packaging bag (1) according to the present invention has an opening of a bag body (2) having an opening (21) and a bottom (22) at the top, and an opening of the bag body (2). It is provided with a chuck portion (3) bonded to an inner peripheral surface (23) in the vicinity of the portion (21).

袋本体部(2)は、互いに対向する第1シート部材及び第2シート部材の互いに対向する一対の辺がシールされることにより形成されたものであってもよく、筒状に形成された1枚のシート部材であってもよい。
尚、シールされた、互いに対向する第1シート部材及び第2シート部材の互いに対向する一対の辺をシール部(24)と称す。
The bag main body portion (2) may be formed by sealing a pair of opposite sides of the first sheet member and the second sheet member facing each other, and may be formed in a cylindrical shape1. It may be a sheet member.
A pair of sealed first sheet members and second sheet members facing each other is referred to as a sealing portion (24).

第1シート部材及び第2シート部材のシール方法は特に限定されず、ヒートシール等、通常用いられるシールの方法であれば、いかなるものでも用いることができる。
例えば、ヒートシールの場合、EVA(エチレン酢酸ビニル共重合体)系、PO(ポリオレフィン)系、PA(ポリアミド)系、SR(合成ゴム)系、ACR(アクリル)系、PUR(ポリウレタン樹脂)系等のホットメルト接着剤等、ヒートシールに通常用いられている接着剤を用いることができる。
尚、ヒートシールは叙上のホットメルト接着剤に限定されず、互いに対向する第1シート部材及び第2シート部材の互いに対向する一対の辺を熱溶着によって溶着することができるものであり、当業者に自明のものであればいかなるものでも用いることができる。
The sealing method of the first sheet member and the second sheet member is not particularly limited, and any commonly used sealing method such as heat sealing can be used.
For example, in the case of heat sealing, EVA (ethylene vinyl acetate copolymer) type, PO (polyamide) type, PA (polyamide) type, SR (synthetic rubber) type, ACR (acrylic) type, PUR (polyurethane resin) type, etc. Adhesives usually used for heat sealing, such as the hot melt adhesive of the above, can be used.
The heat seal is not limited to the hot melt adhesive above, and can weld a pair of opposite sides of the first sheet member and the second sheet member facing each other by heat welding. Anything that is obvious to the person skilled in the art can be used.

袋本体部(2)の材質は、包装袋に用いることができるものであればいかなるものを用いてもよいが、好適には、袋の外面側が基材層、袋の内面側がシーラント層であるものが用いられる。
基材層としては、たとえば、二軸延伸ポリプロピレンフィルム(OPP)、二軸延伸ナイロンフィルム(ONY)、ポリエチレンテレフタレート(PET)、二軸延伸ポリエチレンテレフタレート(OPET)、無延伸ポリプロピレンフィルム、無延伸ナイロンフィルム、セルロース系フィルム、合成紙などがあげられる。基材層は、2層以上で構成していてもよい。
また、基材層は、ガスバリア層、接着性樹脂層、アンカーコーティング層、蒸着層(セラミックス蒸着層等)、印刷層、トップコート層などを有していてもよい。
ガスバリア層としては、PVDC(ポリ塩化ビニリデン)、アクリル酸系樹脂、有機系材料、無機化合物等を使用することができる。
基材層の厚みは、所定の強度を有する限りにおいて任意であるが、たとえば12〜120μm程度とすることが多い。
The material of the bag body (2) may be any material as long as it can be used for the packaging bag, but preferably, the outer surface side of the bag is the base material layer and the inner surface side of the bag is the sealant layer. Things are used.
Examples of the base material layer include biaxially stretched polypropylene film (OPP), biaxially stretched nylon film (ONY), polyethylene terephthalate (PET), biaxially stretched polyethylene terephthalate (OPET), non-stretched polypropylene film, and non-stretched nylon film. , Cellulous film, synthetic paper, etc. The base material layer may be composed of two or more layers.
Further, the base material layer may have a gas barrier layer, an adhesive resin layer, an anchor coating layer, a vapor deposition layer (ceramics vapor deposition layer, etc.), a printing layer, a top coat layer, and the like.
As the gas barrier layer, PVDC (polyvinylidene chloride), acrylic acid-based resin, organic-based material, inorganic compound and the like can be used.
The thickness of the base material layer is arbitrary as long as it has a predetermined strength, but is often set to, for example, about 12 to 120 μm.

シーラント層としては、低密度ポリエチレン(LDPE)、リニア低密度ポリエチレン(LLDPE)、中密度ポリエチレン(MDPE)、高密度ポリエチレン(HDPE)、エチレン−酢酸ビニル共重合体(EVA)、エチレン−不飽和カルボン酸共重合体等のポリエチレン系樹脂、CPPと称されるポリプロピレン系樹脂をはじめ、ヒートシール性を有する種々の樹脂の層があげられる。シーラント層も、2層以上構成してもよい。シーラント層の厚みにも特に限定はないが、たとえば、10〜250μm程度、殊に20〜200μm程度とすることが多い。 The sealant layer includes low density polyethylene (LDPE), linear low density polyethylene (LLDPE), medium density polyethylene (MDPE), high density polyethylene (HDPE), ethylene-vinyl acetate copolymer (EVA), and ethylene-unsaturated carboxylic. Examples thereof include layers of various resins having heat-sealing properties, including polyethylene-based resins such as acid copolymers and polypropylene-based resins called CPP. The sealant layer may also be composed of two or more layers. The thickness of the sealant layer is also not particularly limited, but is often set to, for example, about 10 to 250 μm, particularly about 20 to 200 μm.

各層間の積層は、蒸着層の形成の場合を除き、ドライラミネート(DL)法、ウエットラミネート法、流延法、サンドラミネート法、共押出法、エクストルージョンコーテイング法、印刷法などの方法によりなされる。 Lamination between each layer is performed by a method such as a dry laminating (DL) method, a wet laminating method, a casting method, a sand laminating method, a coextrusion method, an extrusion coating method, or a printing method, except for the case of forming a thin-film deposition layer. NS.

本発明における好適な例として、基材層に使用される合成樹脂フィルムの材料として,215〜225℃の融点を有する二軸延伸ナイロン(ONY)、又は265℃の融点を有するポリエチレンテレフタレート(PET)を使用する場合は,シーラント層に使用される合成樹脂フィルムの材料として、105〜115℃の融点を有する低密度ポリエチレン(LDPE)、110〜130℃の融点を有する中密度ポリエチレン(MDPE)、125〜130℃の融点を有する直鎖状低密度ポリエチレン(LLDPE)、135〜150℃の融点を有する高密度ポリエチレン(HDPE)、135〜165℃の融点を有する無延伸ポリプロピレン(CPP)が選択され得る。 As a preferred example in the present invention, as the material of the synthetic resin film used for the base material layer, biaxially stretched nylon (ONY) having a melting point of 215 to 225 ° C. or polyethylene terephthalate (PET) having a melting point of 265 ° C. When using, low density polyethylene (LDPE) having a melting point of 105 to 115 ° C., medium density polyethylene (MDPE) having a melting point of 110 to 130 ° C., 125 as the material of the synthetic resin film used for the sealant layer. Linear low density polyethylene (LLDPE) having a melting point of ~ 130 ° C., high density polyethylene (HDPE) having a melting point of 135 to 150 ° C., and unstretched polypropylene (CPP) having a melting point of 135 to 165 ° C. can be selected. ..

底部(22)は、シール部(24)が設けられていない袋本体部(2)の互いに対向するもう一対の辺の一方に設けられている。
底部(22)は、シール部(24)と同様に、ヒートシール等によりシールされており、底部(22)と対向する辺に設けられた開口部(21)から袋本体部(2)内に入れられた飲食品等が底部(22)から漏れないように形成されている。
また、底部(22)は、袋本体部(2)を折り返して挿入し、折り返した周縁部をヒートシール等によりシールすることによりガゼット部(すなわち、マチ)を形成してもよい。
底部(22)が、ガゼット部を有していることによって、袋本体部(2)が自立可能となり、電子レンジ等により飲食品等の内容物を本発明の包装袋(1)ごと加熱する間、袋本体部(2)を自立させた状態で維持することができ、より容易かつ安定に蒸気を袋本体部(2)の外に排出することができる。
尚、ガゼット部は、例えば、常法に従い、袋本体部(2)を内側にW字形に折り返すか、袋本体部(2)と同じような層構成の別のシート部材をΛ字形にして挿し込むことにより形成することができる。
The bottom portion (22) is provided on one of the other pair of sides facing each other of the bag main body portion (2) in which the seal portion (24) is not provided.
The bottom portion (22) is sealed by a heat seal or the like like the seal portion (24), and is formed in the bag main body portion (2) from the opening (21) provided on the side facing the bottom portion (22). It is formed so that the put food and drink etc. do not leak from the bottom (22).
Further, the bottom portion (22) may form a gusset portion (that is, a gusset) by folding back the bag main body portion (2) and inserting it, and sealing the folded peripheral portion by a heat seal or the like.
Since the bottom portion (22) has a gusset portion, the bag body portion (2) can stand on its own, and while the contents such as food and drink are heated together with the packaging bag (1) of the present invention by a microwave oven or the like. , The bag main body (2) can be maintained in an independent state, and steam can be more easily and stably discharged to the outside of the bag main body (2).
For the gusset portion, for example, the bag body portion (2) is folded back inward in a W shape according to a conventional method, or another sheet member having a layer structure similar to that of the bag body portion (2) is inserted in a Λ shape. It can be formed by inserting.

開口部(21)は、底部(22)と対向する辺に設けられている。開口部(21)は袋本体部(2)内に飲食品等を充填する充填口及び袋本体部(2)内から飲食品等を取り出す取り出し口となる。
尚、開口部(21)の大きさは特に限定されるものではなく、例えば、底部(22)と対向する辺の全長に亘って設けられていてもよく、辺の全長の半分に亘って設けられていてもよく、辺の一部に亘って設けられていても良い。
また、充填口は、開口部(21)とは別に袋本体部(2)の側部などに設けてもよい。
The opening (21) is provided on the side facing the bottom (22). The opening (21) serves as a filling port for filling the bag main body (2) with food and drink and an outlet for taking out food and drink from the bag main body (2).
The size of the opening (21) is not particularly limited, and may be provided over the entire length of the side facing the bottom (22), or may be provided over half of the total length of the side. It may be provided or may be provided over a part of the side.
Further, the filling port may be provided on the side of the bag main body (2) separately from the opening (21).

チャック部(3)は、袋本体部(2)の開口部(21)近傍の内周面(23)に接着されている。
また、図1に示す如く、袋本体部(2)がシール部(24)を有する場合、チャック部(3)は、袋本体部(2)の開口部(21)近傍の内周面(23)の、一方のシール部から他方のシール部に亘って設けられている。
The chuck portion (3) is adhered to the inner peripheral surface (23) near the opening (21) of the bag main body portion (2).
Further, as shown in FIG. 1, when the bag main body (2) has the seal portion (24), the chuck portion (3) has an inner peripheral surface (23) near the opening (21) of the bag main body (2). ), It is provided from one seal portion to the other seal portion.

図2に示す如く、チャック部(3)は、対向する位置で内周面(23)に夫々接着されている雄部(3A1)及び第1基部(3A2)を有する第1部分(3A)と雌部(3B1)及び第2基部(3B2)を有する第2部分(3B)とから形成されている。
チャック部(3)は、電子レンジ等による加熱が可能な耐熱性を有する。
雄部(3A1)と雌部(3B1)は嵌合するように構成されており、これにより、袋本体部(2)の開閉を行うことができ、一旦開口しても再び内容物を密閉することができる。
尚、本発明に係るチャック部(3)の雄部(3A1)と雌部(3B1)の構造は特に限定されず、袋本体部(2)の開閉を行うことができ、一旦開口しても再び内容物を密閉することができる構造であり、袋体のチャック部の雄部と雌部として通常用いられる構造であれば、いかなるものでも用いることができる。
As shown in FIG. 2, the chuck portion (3) has a male portion (3A1) and a first base portion (3A2) that are adhered to the inner peripheral surface (23) at opposite positions, respectively, with the first portion (3A). It is formed from a second portion (3B) having a female portion (3B1) and a second base portion (3B2).
The chuck portion (3) has heat resistance that can be heated by a microwave oven or the like.
The male part (3A1) and the female part (3B1) are configured to be fitted so that the bag main body (2) can be opened and closed, and even if the bag is opened once, the contents are sealed again. be able to.
The structure of the male portion (3A1) and the female portion (3B1) of the chuck portion (3) according to the present invention is not particularly limited, and the bag body portion (2) can be opened and closed, and even if the bag body portion (2) is opened once. Any structure can be used as long as it has a structure capable of sealing the contents again and is usually used as a male part and a female part of the chuck portion of the bag body.

図2及び図3に示す如く、第1部分(3A)は雄部(3A1)及び第1基部(3A2)を備え、第2部分(3B)は雌部(3B1)及び第2基部(3B2)を備えている。
第1基部(3A2)及び第2基部(3B2)は袋本体部(2)の開口部(21)近傍の内周面(23)に接着されている。
第1基部(3A2)及び第2基部(3B2)と内周面(23)との接着方法は特に限定されず、ヒートシール等、通常用いられるシールの方法であれば、いかなるものでも用いることができる。
例えば、ヒートシールの場合、EVA(エチレン酢酸ビニル共重合体)系、PO(ポリオレフィン)系、PA(ポリアミド)系、SR(合成ゴム)系、ACR(アクリル)系、PUR(ポリウレタン樹脂)系等のホットメルト接着剤等、ヒートシールに通常用いられている接着剤を用いることができる。
尚、ヒートシールは叙上のホットメルト接着剤に限定されず、第1基部(3A2)及び第2基部(3B2)と内周面(23)を熱溶着によって溶着することができるものであり、当業者に自明のものであればいかなるものでも用いることができる。
第1基部(3A2)及び第2基部(3B2)の形状は特に限定されないが、内周面(23)と容易且つ強固に接着できるように、例えば平板状である等、内周面(23)との接着面側は少なくとも平坦であることが望ましい。
As shown in FIGS. 2 and 3, the first portion (3A) includes a male portion (3A1) and a first base portion (3A2), and the second portion (3B) is a female portion (3B1) and a second base portion (3B2). It has.
The first base portion (3A2) and the second base portion (3B2) are adhered to the inner peripheral surface (23) near the opening (21) of the bag body portion (2).
The method of bonding the first base portion (3A2) and the second base portion (3B2) to the inner peripheral surface (23) is not particularly limited, and any commonly used sealing method such as heat sealing may be used. can.
For example, in the case of heat sealing, EVA (ethylene vinyl acetate copolymer) type, PO (polyamide) type, PA (polyamide) type, SR (synthetic rubber) type, ACR (acrylic) type, PUR (polyurethane resin) type, etc. Adhesives usually used for heat sealing, such as the hot melt adhesive of the above, can be used.
The heat seal is not limited to the hot melt adhesive on the surface, and the first base portion (3A2) and the second base portion (3B2) and the inner peripheral surface (23) can be welded by heat welding. Anything that is self-explanatory to those skilled in the art can be used.
The shapes of the first base portion (3A2) and the second base portion (3B2) are not particularly limited, but the inner peripheral surface (23) is, for example, flat so that it can be easily and firmly adhered to the inner peripheral surface (23). It is desirable that the surface side to be adhered to is at least flat.

図4及び図5に示す如く、第1基部(3A2)及び第2基部(3B2)は、内周面(23)との間に接着領域(34)を有している。
第1基部(3A2)及び/又は第2基部(3B2)は、内周面(23)との間に未接着領域(35)を有している。
接着領域(34)とは、第1基部(3A2)及び第2基部(3B2)と内周面(23)とが接着されている領域のことをいう(図3及び図4参照)。
図3に示す如く、接着領域(34)において、第1基部(3A2)及び第2基部(3B2)は接着層(G)を介して内周面(23)に接着されている。
未接着領域(35)とは、第1基部(3A2)及び/又は第2基部(3B2)と内周面(23)とが接着されていない領域のことをいう(図5参照)。
As shown in FIGS. 4 and 5, the first base portion (3A2) and the second base portion (3B2) have an adhesive region (34) between the first base portion (3A2) and the inner peripheral surface (23).
The first base portion (3A2) and / or the second base portion (3B2) has an unbonded region (35) between the first base portion (3A2) and the inner peripheral surface (23).
The adhesive region (34) refers to an region in which the first base portion (3A2) and the second base portion (3B2) are bonded to the inner peripheral surface (23) (see FIGS. 3 and 4).
As shown in FIG. 3, in the adhesive region (34), the first base portion (3A2) and the second base portion (3B2) are adhered to the inner peripheral surface (23) via the adhesive layer (G).
The unbonded region (35) refers to a region in which the first base portion (3A2) and / or the second base portion (3B2) and the inner peripheral surface (23) are not bonded (see FIG. 5).

叙上の通り、第1基部(3A2)あるいは第2基部(3B2)のどちらか、又は第1基部(3A2)及び第2基部(3B2)の両方が、接着領域(34)と未接着領域(35)の両方を有している。
第1基部(3A2)又は第2基部(3B2)の一方、あるいは第1基部(3A2)及び第2基部(3B2)の両方が、接着領域(34)と未接着領域(35)の両方を有しているどちらの場合であっても、本発明の効果を奏することができる。
電子レンジ等により飲食品等の内容物を包装袋ごと加熱した際に、熱による飲食品等の内容物へのより高い蒸らし効果を得ることができるという観点から、第1基部(3A2)あるいは第2基部(3B2)のどちらかが接着領域(34)と未接着領域(35)の両方を有していることがより好ましい。
第1基部(3A2)あるいは第2基部(3B2)のどちらかが接着領域(34)と未接着領域(35)の両方を有している場合、接着領域(34)と未接着領域(35)の両方を有していない方は接着領域(34)のみを有する。
As described above, either the first base (3A2) or the second base (3B2), or both the first base (3A2) and the second base (3B2) are bonded regions (34) and unbonded regions (34). It has both of 35).
One of the first base (3A2) or the second base (3B2), or both the first base (3A2) and the second base (3B2), have both an adhesive region (34) and a non-adhesive region (35). In either case, the effect of the present invention can be achieved.
When the contents of foods and drinks are heated together with the packaging bag by a microwave oven or the like, the first base (3A2) or the first unit (3A2) or the first part can obtain a higher steaming effect on the contents of foods and drinks by heat. It is more preferable that either of the two bases (3B2) has both an adhesive region (34) and a non-adhesive region (35).
If either the first base (3A2) or the second base (3B2) has both an adhesive region (34) and a non-adhesive region (35), the adhesive region (34) and the non-adhesive region (35) Those who do not have both of them have only the adhesive region (34).

本発明の包装袋(1)には、未接着領域(35)において、袋本体部(2)の内周面(23)と第1基部(3A2)及び/又は第2基部(3B2)との間には通気可能な少なくとも1つの通路(4)が形成されている。
すなわち、図1に示す如く、袋本体部(2)の開口部(21)側から底部(22)側に亘って、チャック部(3)を横断するように未接着領域(35)が設けられている。
このように第1基部(3A2)及び/又は第2基部(3B2)に未接着領域(35)が設けられることにより、チャック部(3)を閉じていた場合においても、第1基部(3A2)及び/又は第2基部(3B2)と袋本体部(2)の内周面(23)との間に、袋本体部(2)の底部(22)側と開口部(21)側に空気(蒸気)が通ることができる通路(4)を形成することができる。
In the packaging bag (1) of the present invention, in the unbonded region (35), the inner peripheral surface (23) of the bag main body (2) and the first base (3A2) and / or the second base (3B2) At least one ventilable passage (4) is formed between them.
That is, as shown in FIG. 1, a non-adhesive region (35) is provided so as to cross the chuck portion (3) from the opening (21) side to the bottom portion (22) side of the bag body portion (2). ing.
By providing the unbonded region (35) in the first base portion (3A2) and / or the second base portion (3B2) in this way, even when the chuck portion (3) is closed, the first base portion (3A2) And / or between the second base (3B2) and the inner peripheral surface (23) of the bag body (2), air on the bottom (22) side and opening (21) side of the bag body (2) It is possible to form a passage (4) through which steam) can pass.

尚、通路(4)の最も底部(22)側の部分を底部側の端部(41)と称し、最も開口部(21)側の部分を開口部側の端部(42)と称する。
また、底部側の端部(41)の通路(4)の大きさを底部側の端部の開口径(41D)と称し、開口部側の端部(42)の通路(4)の大きさを開口部側の端部の開口径(42D)と称する。
The portion of the passage (4) on the bottom (22) side is referred to as the bottom end (41), and the portion on the opening (21) side is referred to as the opening side end (42).
Further, the size of the passage (4) at the end (41) on the bottom side is referred to as the opening diameter (41D) at the end on the bottom side, and the size of the passage (4) at the end (42) on the opening side. Is referred to as the opening diameter (42D) of the end portion on the opening side.

図1に示す如く、本発明の包装袋(1)において、通路(4)における開口部側の端部の開口径(42D)は、底部側の端部の開口径(41D)よりも大きい。
これにより、通路(4)において底部側の端部(41)から開口部側の端部(42)に向けて圧力が低くなるように圧力差を形成できる。
そのため、袋本体部(2)の底部側の端部の開口径(41D)が小さくとも、この圧力差により、袋本体部(2)の蒸気を外部に円滑に放出することができ、蒸気を開口径の大きい開口部側の端部の開口径(42D)から逃がすことができる。
それゆえに、袋本体部(2)の気密性を保ちつつ、電子レンジ等により飲食品等の内容物を本発明の包装袋(1)ごと加熱した際に、袋本体部(2)の外に蒸気を十分に逃がすことができ、チャック部(3)が意図せず外れてしまう虞がなく、且つ加熱による飲食品等の内容物への蒸らし効果を十分に得ることができる。
As shown in FIG. 1, in the packaging bag (1) of the present invention, the opening diameter (42D) of the opening-side end in the passage (4) is larger than the opening diameter (41D) of the bottom-side end.
As a result, a pressure difference can be formed so that the pressure decreases from the bottom end (41) to the opening side end (42) in the passage (4).
Therefore, even if the opening diameter (41D) of the bottom end of the bag body (2) is small, the steam of the bag body (2) can be smoothly discharged to the outside due to this pressure difference, and the steam can be discharged. It can be released from the opening diameter (42D) of the end portion on the opening side having a large opening diameter.
Therefore, while maintaining the airtightness of the bag body (2), when the contents such as food and drink are heated together with the packaging bag (1) of the present invention by a microwave oven or the like, the contents of the bag body (2) are removed from the bag body (2). The steam can be sufficiently released, the chuck portion (3) is not unintentionally disengaged, and the effect of steaming the contents such as food and drink by heating can be sufficiently obtained.

通路(4)における底部側の端部の開口径(41D)と、開口部側の端部の開口径(42D)の比率は特に限定されないが、1:1.1〜1:6であることが望ましい。
上記比率が1:1.1よりも小さい(すなわち1:<1.1)と、電子レンジ等により飲食品等の内容物を本発明の包装袋(1)ごと加熱した際に、底部側の端部(41)から開口部側の端部(42)の間の圧力差が小さいため、通路(4)の開口部側の端部(42)からうまく蒸気が抜けない虞があり、望ましくない。
上記比率が1:6よりも大きい(すなわち1:>6)と、電子レンジ等により飲食品等の内容物を本発明の包装袋(1)ごと加熱した際に、通路(4)の開口部側の端部(42)から蒸気が抜け過ぎてしまう虞があり、望ましくない。
また、チャック部(3)の開封動作において、開口部(21)を把持した際に、誤って開口部側の端部(42)から通路(4)に指を突っ込んでしまい、スムーズにチャック部(3)を開封できない虞がある。
それゆえに、通路(4)における底部側の端部の開口径(41D)と開口部側の端部の開口径(42D)の比率は、電子レンジ等により飲食品等の内容物を本発明の包装袋(1)ごと加熱した際に、袋本体部(2)の外に蒸気を十分に逃がすことができ、チャック部(3)が意図せず外れてしまう虞がなく、且つ加熱による飲食品等の内容物への蒸らし効果を十分に得ることができる、1:1.1〜1:6であることが望ましい。
The ratio of the opening diameter (41D) of the bottom end side and the opening diameter (42D) of the opening side end in the passage (4) is not particularly limited, but is 1: 1.1 to 1: 6. Is desirable.
When the above ratio is smaller than 1: 1.1 (that is, 1: <1.1), when the contents such as food and drink are heated together with the packaging bag (1) of the present invention by a microwave oven or the like, the bottom side Since the pressure difference between the end portion (41) and the end portion (42) on the opening side is small, steam may not escape well from the end portion (42) on the opening side of the passage (4), which is not desirable. ..
When the above ratio is larger than 1: 6 (that is, 1:> 6), when the contents such as food and drink are heated together with the packaging bag (1) of the present invention by a microwave oven or the like, the opening of the passage (4) is opened. It is not desirable because there is a risk that too much steam will escape from the side end (42).
Further, in the opening operation of the chuck portion (3), when the opening (21) is gripped, a finger is accidentally thrust into the passage (4) from the end portion (42) on the opening side, and the chuck portion is smoothly opened. (3) may not be opened.
Therefore, the ratio of the opening diameter (41D) of the bottom end side to the opening diameter (42D) of the opening side end in the passage (4) is such that the contents such as food and drink can be used in the present invention by using a microwave oven or the like. When the entire packaging bag (1) is heated, steam can sufficiently escape to the outside of the bag body (2), there is no risk that the chuck portion (3) will come off unintentionally, and food and drink by heating. It is desirable that the ratio is 1: 1.1 to 1: 6, which can sufficiently obtain a steaming effect on the contents such as.

通路(4)の底部側の端部の開口径(41D)と開口部側の端部の開口径(42D)の大きさは特に限定されず、本発明の包装袋(1)の大きさや所望の蒸気の抜け量に応じて適宜選択することが望ましい。
叙上の通り、通路(4)の底部側の端部の開口径(41D)の大きさは適宜選択され得るが、例えば、5mm以上50mm以下であり得る。
例えば、通路(4)の底部側の端部の開口径(41D)の大きさが5mmである場合、通路(4)の開口部側の端部の開口径(42D)の大きさは5.5mm以上30mm以下であることが望ましい。
The size of the opening diameter (41D) of the bottom end side of the passage (4) and the opening diameter (42D) of the opening side end portion are not particularly limited, and the size and desired size of the packaging bag (1) of the present invention. It is desirable to select an appropriate amount according to the amount of steam released from the above.
As described above, the size of the opening diameter (41D) at the bottom end of the passage (4) can be appropriately selected, and may be, for example, 5 mm or more and 50 mm or less.
For example, when the size of the opening diameter (41D) of the bottom end side of the passage (4) is 5 mm, the size of the opening diameter (42D) of the opening side end of the passage (4) is 5. It is desirable that it is 5 mm or more and 30 mm or less.

本発明の包装袋(1)に設けられる通路(4)の数や位置は特に限定されず、本発明の包装袋(1)の大きさや所望の蒸気の抜け量に応じて適宜選択することが望ましい。
本発明の包装袋(1)に通路(4)を1つ設ける場合、通路(4)は、袋本体部(2)におけるチャック部(3)が延びる方向の中心部に設けることが望ましい。
通路(4)を袋本体部(2)におけるチャック部(3)が延びる方向の中心部に設けることにより、電子レンジ等により飲食品等の内容物を本発明の包装袋(1)ごと加熱した際に、蒸気が袋本体部(2)におけるチャック部(3)が延びる方向の中心部から抜けるため、袋本体部(2)の形状が大きく変形することなく蒸気を抜くことができ、より容易且つ安定に袋本体部(2)内に生じる蒸気を袋本体部(2)の外に逃がすことができる。
しかしながら、通路(4)を袋本体部(2)におけるチャック部(3)が延びる方向の中心部以外に設けた場合であっても、本発明の効果を奏することができる。
The number and position of the passages (4) provided in the packaging bag (1) of the present invention are not particularly limited, and can be appropriately selected according to the size of the packaging bag (1) of the present invention and the desired amount of steam released. desirable.
When one passage (4) is provided in the packaging bag (1) of the present invention, it is desirable that the passage (4) is provided at the center of the bag main body (2) in the direction in which the chuck portion (3) extends.
By providing the passage (4) at the center of the bag body (2) in the direction in which the chuck portion (3) extends, the contents such as food and drink are heated together with the packaging bag (1) of the present invention by a microwave oven or the like. At that time, since the steam escapes from the central portion of the bag main body (2) in the direction in which the chuck portion (3) extends, the steam can be removed without significantly deforming the shape of the bag main body (2), which is easier. Moreover, the steam generated in the bag main body (2) can be stably released to the outside of the bag main body (2).
However, the effect of the present invention can be obtained even when the passage (4) is provided in a portion other than the central portion in the direction in which the chuck portion (3) in the bag main body portion (2) extends.

また、通路(4)は、袋本体部(2)に複数設けても良い。複数の通路(4)は、互いに間隔を空けて設けられる。
通路(4)を複数設けることにより、電子レンジ等により飲食品等の内容物を本発明の包装袋(1)ごと加熱した際に、より容易且つ安定に袋本体部内に生じる蒸気を袋本体部(2)の外に逃がすことができる。
Further, a plurality of passages (4) may be provided in the bag main body (2). The plurality of passages (4) are provided at intervals from each other.
By providing a plurality of passages (4), when the contents such as food and drink are heated together with the packaging bag (1) of the present invention by a microwave oven or the like, the steam generated in the bag body is more easily and stably generated in the bag body. It can be escaped to the outside of (2).

上記の通り、通路(4)は、開口部側の端部の開口径(42D)が、底部側の端部の開口径(41D)よりも大きい形状であればいかなる形状であっても良く、通路(4)における底部側の端部(41)と開口部側の端部(42)を夫々結ぶ両側の側部(45)は、直線形状、曲線形状、あるいは直線と曲線を組み合わせた形状である。 As described above, the passage (4) may have any shape as long as the opening diameter (42D) at the end on the opening side is larger than the opening diameter (41D) at the end on the bottom side. The side portions (45) on both sides connecting the end portion (41) on the bottom side and the end portion (42) on the opening side in the passage (4) have a linear shape, a curved shape, or a shape obtained by combining a straight line and a curved line. be.

図6は、本発明に係る包装袋(1)の通路(4)の拡大正面図である。
図6に示す如く、通路(4)は、底部側の端部(41)から底部側の端部の開口径(41D)と同じ開口径で延びる直線部(43)と、直線部(43)の端部から開口部側の端部(42)に向かうにつれて開口径が拡大する拡大部(44)とを有している。
尚、図6中の矢印(D)は、空気(蒸気)の流れを示す。
通路(4)を図6に示す形状とすることで、電子レンジ等により飲食品等の内容物を本発明の包装袋(1)ごと加熱した際に、開口径が大きい開口部側の端部(42)からより容易且つ安定に袋本体部(2)内に生じる蒸気を袋本体部(2)の外に逃がすことができる。
それゆえに、通路(4)の開口が不十分であるために生じるチャック部(3)の意図しない外れや破袋を予防することができる。
しかしながら、図6で示した形状以外の形状であっても、開口部側の端部の開口径(42D)が底部側の端部の開口径(41D)よりも大きい形状であれば、底部側の端部(41)から開口部側の端部(42)の間の圧力差を大きくすることができるため、袋本体部(2)内で生じた蒸気が抜けやすくなり、本発明の効果を奏することができる。
FIG. 6 is an enlarged front view of the passage (4) of the packaging bag (1) according to the present invention.
As shown in FIG. 6, the passage (4) has a straight portion (43) extending from the bottom end (41) to the same opening diameter as the bottom end opening diameter (41D), and a straight portion (43). It has an enlarged portion (44) whose opening diameter increases toward the end portion (42) on the opening side.
The arrow (D) in FIG. 6 indicates the flow of air (steam).
By forming the passage (4) into the shape shown in FIG. 6, when the contents such as food and drink are heated together with the packaging bag (1) of the present invention by a microwave oven or the like, the end portion on the opening side having a large opening diameter. The steam generated in the bag main body (2) from (42) can be released to the outside of the bag main body (2) more easily and stably.
Therefore, it is possible to prevent unintentional detachment or bag breakage of the chuck portion (3) caused by insufficient opening of the passage (4).
However, even if the shape is other than the shape shown in FIG. 6, if the opening diameter (42D) of the end on the opening side is larger than the opening diameter (41D) of the end on the bottom side, the bottom side Since the pressure difference between the end portion (41) and the end portion (42) on the opening side can be increased, the steam generated in the bag main body portion (2) can be easily released, and the effect of the present invention can be obtained. Can play.

また、図6に示す通路の変形例として、直線部(43)は、雄部(3A1)及び/又は雌部(3B1)を越えて開口部(21)側にまで延び、拡大部(44)は、雄部(3A1)及び/又は雌部(3B1)よりも開口部(21)側に位置する形状を備える通路が挙げられる。
この形状では、雄部(3A1)及び/又は雌部(3B1)の下を直線部(43)が通っているため、直線部(43)が膨らみ難い(すなわち、直線部(43)が開き難い)。
それゆえに、飲食品等の内容物が、直線部(43)に入り、通路(4)を通って袋本体部(2)の外に出てしまうことを防止することができる。
加えて、拡大部(44)は、雄部(3A1)及び/又は雌部(3B1)よりも開口部(21)側に位置するため、拡大部(44)は膨らみ易い(すなわち、拡大部(44)が開き易い)。
それゆえに、より容易に底部側の端部(41)と開口部側の端部(42)間の圧力差を形成することができ、電子レンジ等により飲食品等の内容物を本発明の包装袋(1)ごと加熱した際に、開口径が大きい開口部側の端部(42)からより容易且つ安定に袋本体部(2)内に生じる蒸気を袋本体部(2)の外に逃がすことができる。
Further, as a modification of the passage shown in FIG. 6, the straight portion (43) extends beyond the male portion (3A1) and / or the female portion (3B1) to the opening (21) side, and the enlarged portion (44). Is a passage having a shape located on the opening (21) side of the male part (3A1) and / or the female part (3B1).
In this shape, since the straight portion (43) passes under the male portion (3A1) and / or the female portion (3B1), the straight portion (43) is difficult to swell (that is, the straight portion (43) is difficult to open). ).
Therefore, it is possible to prevent the contents such as food and drink from entering the straight line portion (43) and exiting the bag main body portion (2) through the passage (4).
In addition, since the enlarged portion (44) is located closer to the opening (21) than the male portion (3A1) and / or the female portion (3B1), the enlarged portion (44) tends to swell (that is, the enlarged portion (that is, the enlarged portion (i.e. 44) is easy to open).
Therefore, it is possible to more easily form a pressure difference between the bottom end (41) and the opening side end (42), and the contents such as food and drink can be packaged in the present invention by a microwave oven or the like. When the entire bag (1) is heated, steam generated in the bag body (2) is more easily and stably released from the end (42) on the opening side having a large opening diameter to the outside of the bag body (2). be able to.

図7は、本発明に係る包装袋(1)の通路(4)のその他の例の正面図である。
例えば、図7の(a)は、通路(4)における底部側の端部(41)と開口部側の端部(42)を夫々結ぶ両側の側部(45)が直線形状である。
図7の(b)は、通路(4)における底部側の端部(41)と開口部側の端部(42)を夫々結ぶ両側の側部(45)が曲線形状である。
図7の(c)は、通路(4)における底部側の端部(41)と開口部側の端部(42)を夫々結ぶ両側の側部(45)が外側に膨らんだ曲線形状である。
FIG. 7 is a front view of another example of the passage (4) of the packaging bag (1) according to the present invention.
For example, in FIG. 7A, the side portions (45) on both sides connecting the end portion (41) on the bottom side and the end portion (42) on the opening side in the passage (4) have a linear shape.
In FIG. 7B, the side portions (45) on both sides connecting the end portion (41) on the bottom side and the end portion (42) on the opening side in the passage (4) are curved.
FIG. 7 (c) shows a curved shape in which the side portions (45) on both sides connecting the end portion (41) on the bottom side and the end portion (42) on the opening side in the passage (4) bulge outward. ..

図7の(d)は、通路(4)における底部側の端部(41)と開口部側の端部(42)を夫々結ぶ両側の側部(45)が、底部側の端部(41)から底部側の端部(41)の開口径(41D)と同じ開口径で延びる直線形状の直線部(43)と、直線部(43)の端部から開口部側の端部(42)に向かって真っすぐ伸びる直線形状の拡大部(44)とからなる。
図7の(e)は、通路(4)における底部側の端部(41)と開口部側の端部(42)を夫々結ぶ両側の側部(45)が、底部側の端部(41)から底部側の端部の開口径(41D)と同じ開口径で延びる直線形状の直線部(43)と、直線部(43)の端部から開口部側の端部(42)に向かって外側に膨らむ曲線形状の拡大部(44)とからなる。
In FIG. 7D, the side portions (45) on both sides connecting the bottom end (41) and the opening side end (42) in the passage (4) are the bottom end (41). ) To the bottom end (41) with the same opening diameter as the opening diameter (41D), and the linear portion (43) extending from the end of the straight portion (43) to the opening side end (42). It consists of a linear enlarged portion (44) extending straight toward.
In FIG. 7 (e), the side portions (45) on both sides connecting the bottom end (41) and the opening side end (42) in the passage (4) are the bottom end (41). ) To the straight portion (43) having a linear shape extending from the opening diameter (41D) of the bottom end side, and from the end portion of the straight line portion (43) toward the opening side end portion (42). It is composed of a curved enlarged portion (44) that bulges outward.

図7の(f)は、通路(4)における底部側の端部(41)が2つの通路(4)からなり、2つの通路(4)は底部側の端部(41)から底部側の端部の開口径(41D)と同じ開口径で延びる直線形状であり、2つの通路(4)は開口部側の端部(42)方向中途部で合流し、合流部から開口部側の端部(42)に向かって外側に膨らむ曲線形状の拡大部(44)とからなる。
これらのどの形状であっても本発明の効果を奏することができる。
また、図7で例示した形状以外の形状であっても、開口部側の端部の開口径(42D)が底部側の端部の開口径(41D)よりも大きい形状であれば本発明の効果を奏することができる。
In FIG. 7 (f), the bottom end (41) of the passage (4) is composed of two passages (4), and the two passages (4) are from the bottom end (41) to the bottom side. It has a linear shape extending with the same opening diameter as the opening diameter (41D) of the end, and the two passages (4) meet at the middle of the end (42) direction on the opening side, and the end on the opening side from the confluence. It is composed of a curved enlarged portion (44) that bulges outward toward the portion (42).
Any of these shapes can produce the effects of the present invention.
Further, even if the shape is other than the shape illustrated in FIG. 7, the present invention has a shape in which the opening diameter (42D) of the end portion on the opening side is larger than the opening diameter (41D) of the end portion on the bottom side. It can be effective.

本発明の包装袋と従来の包装袋との比較試験を実施した。
尚、本発明は以下の実施例に限定されるものではない。
A comparative test between the packaging bag of the present invention and the conventional packaging bag was carried out.
The present invention is not limited to the following examples.

<実施例>
実施例として、図1と同じ形状の通路を有する包装袋を用いた。
構成:ONY#15/DL/レトルトCPP#70
形状:ボトムGZ袋(高さ200mm×巾205mm×底GZ40mm)
通路の形状:図1の形状
通路の数:1つ
通路の位置:袋本体部におけるチャック部が延びる方向の中心部
底部側の端部の開口径:10mm
開口部側の端部の開口径:30mm
<Example>
As an example, a packaging bag having a passage having the same shape as that in FIG. 1 was used.
Configuration: ONY # 15 / DL / Retort CPP # 70
Shape: Bottom GZ bag (height 200 mm x width 205 mm x bottom GZ 40 mm)
Shape of passage: Shape of Fig. 1 Number of passages: 1 Position of passage: Opening diameter of the end on the bottom side of the center in the direction in which the chuck portion extends in the bag body: 10 mm
Opening diameter at the end on the opening side: 30 mm

<比較例>
比較例として、図8の包装袋(11)を用いた。
尚、比較例の包装袋(11)は、通路の形状以外は実施例の包装袋(1)と同様である。
構成:ONY#15/DL/レトルトCPP#70
形状:ボトムGZ袋(高さ200mm×巾205mm×底GZ40mm)
通路の形状:図8の形状
通路の数:1つ
通路の位置:袋本体部におけるチャック部が延びる方向の中心部
底部側の端部の開口径:10mm
開口部側の端部の開口径:10mm
<Comparison example>
As a comparative example, the packaging bag (11) of FIG. 8 was used.
The packaging bag (11) of the comparative example is the same as the packaging bag (1) of the embodiment except for the shape of the passage.
Configuration: ONY # 15 / DL / Retort CPP # 70
Shape: Bottom GZ bag (height 200 mm x width 205 mm x bottom GZ 40 mm)
Shape of passage: Shape of FIG. 8 Number of passages: 1 Position of passage: Opening diameter of the end on the bottom side of the center in the direction in which the chuck portion extends in the bag body: 10 mm
Opening diameter at the end on the opening side: 10 mm

<レンジアップ試験>
(試験方法)
実施例及び比較例の包装袋に、布(飲食品等と仮定)1枚と水200mLを充填した。
充填した実施例及び比較例の包装袋を3袋ずつ用意し、夫々電子レンジに入れ、500W10分で加熱(レンジアップ)した。
<Range up test>
(Test method)
The packaging bags of Examples and Comparative Examples were filled with a piece of cloth (assumed to be food and drink, etc.) and 200 mL of water.
Three packed packaging bags of Examples and Comparative Examples were prepared, placed in a microwave oven, and heated (range up) at 500 W for 10 minutes.

(試験結果)
比較例:試験した3袋の内、1袋は加熱中にチャック部は外れてしまった。これは、加熱時に通路が十分に開かず、加熱により袋本体部内に生じた蒸気による内圧を袋本体外に排出できなかったためであると考えられる。加熱中に袋本体部が膨らむ過程で、袋本体部におけるチャック部が延びる方向の中心部付近が下方に下がるようにくの字に折れ曲がっていた。この折れ曲がりのため、加熱時に通路(特に開口部側の端部側の通路)が十分に開かなかったと考えられる。また、袋本体部が折れ曲がらなかった場合でも、蒸気抜けがスムーズでないために、発生した蒸気が袋本体部に滞留してしまい、袋本体部が変形し、自立状態を保てなくなる程安定感を失っていた。
(Test results)
Comparative example: Of the three bags tested, one bag had the zipper part removed during heating. It is considered that this is because the passage was not sufficiently opened during heating and the internal pressure due to the steam generated in the bag body due to heating could not be discharged to the outside of the bag body. In the process of expanding the bag main body during heating, the bag main body was bent in a dogleg shape so that the vicinity of the central portion in the extending direction of the chuck portion was lowered downward. It is probable that the passage (particularly the passage on the end side on the opening side) was not sufficiently opened during heating due to this bending. In addition, even if the bag body is not bent, the steam escape is not smooth, so the generated steam stays in the bag body, and the bag body is deformed, giving a sense of stability that makes it impossible to maintain an independent state. Was lost.

実施例:試験した3袋の内、全ての袋で通路からの蒸気抜けが確認され、加熱中にチャック部が外れてしまう袋はなかった。これは、蒸気が抜けていく開口部側の端部の開口径を大きくすることで、蒸気の通り道を大きくすることができることに加え、底部側の端部(41)から開口部側の端部(42)の間の圧力差を大きくすることができるため、たとえ加熱中に袋本体部が折れ曲がってしまっても、蒸気が十分量抜けることができる通路の径を確保できているためだと考えられる。 Example: Of the three bags tested, steam escape from the passage was confirmed in all the bags, and there was no bag in which the chuck portion came off during heating. This is because the passage of steam can be increased by increasing the opening diameter of the end on the opening side through which steam escapes, and in addition, the end on the bottom side (41) to the end on the opening side. Since the pressure difference between (42) can be increased, it is considered that the diameter of the passage through which a sufficient amount of steam can escape can be secured even if the bag body is bent during heating. Be done.

このように、上記レンジアップ(電子レンジによる加熱)試験では、比較例の成功率が2/3であったのに対し、実施例の成功率は3/3であった。
この結果から、本発明の包装袋は、通路(4)における開口部側の端部の開口径(42D)が、底部側の端部の開口径(41D)よりも大きいという構成を備えることにより、従来の包装袋よりも、電子レンジ等により飲食品等の内容物を包装袋ごと加熱した際に、袋本体部内に生じる蒸気をより容易に袋本体部の外に逃がすことができ、チャック部が意図せず外れてしまう虞がなく、より容易且つ安定に飲食品等の内容物を加熱調理することができることがわかった。
As described above, in the above range-up (heating by microwave oven) test, the success rate of the comparative example was 2/3, whereas the success rate of the example was 3/3.
From this result, the packaging bag of the present invention is provided with a configuration in which the opening diameter (42D) of the end on the opening side in the passage (4) is larger than the opening diameter (41D) on the end on the bottom side. Compared to conventional packaging bags, when the contents of food and drink are heated together with the packaging bag in a microwave oven, the steam generated in the bag body can be more easily released to the outside of the bag body, and the chuck portion. However, it was found that the contents such as food and drink can be cooked more easily and stably without the possibility of unintentional disengagement.

加えて、本発明の包装袋は、従来の包装袋ではうまく蒸気を抜くことができなかった底部側の端部の開口径であっても、チャック部が意図せず外れてしまう虞がなく、容易且つ安定に飲食品等の内容物を加熱調理することができる。
それゆえに、本発明の包装袋は、高い内圧を維持したまま、蒸気抜けの量を高めることができることがわかった。
そのため、本発明の包装袋は、電子レンジ等により飲食品等の内容物を包装袋ごと加熱した際に、袋体の外に蒸気を十分に逃がすことができ、チャック部が意図せず外れてしまう虞がなく、且つ加熱による飲食品等の内容物への蒸らし効果を十分に得ることができるという優れた効果を備えていることがわかった。
In addition, in the packaging bag of the present invention, there is no possibility that the chuck portion will unintentionally come off even if the opening diameter of the end portion on the bottom side is such that the conventional packaging bag cannot evacuate steam well. Contents such as food and drink can be cooked easily and stably.
Therefore, it was found that the packaging bag of the present invention can increase the amount of vapor release while maintaining a high internal pressure.
Therefore, in the packaging bag of the present invention, when the contents such as food and drink are heated together with the packaging bag by a microwave oven or the like, steam can sufficiently escape to the outside of the bag body, and the chuck portion is unintentionally removed. It was found that there is no risk of baggage and that it has an excellent effect that the steaming effect on the contents such as food and drink by heating can be sufficiently obtained.

<安定性試験>
(試験方法)
上記レンジアップ試験に加えて、実施例の包装袋の安定性を確認するため、下記の通り、複数のレンジアップ条件を設定し、試験した。
実施例は条件毎に10袋用意し、試験した。
条件1:布1枚、水200mL、500W、5分
条件2:布1枚、水300mL、500W、6分30秒
条件3:布1枚、水400mL、500W、8分
<Stability test>
(Test method)
In addition to the above range-up test, in order to confirm the stability of the packaging bag of the example, a plurality of range-up conditions were set and tested as follows.
In the examples, 10 bags were prepared for each condition and tested.
Condition 1: 1 cloth, water 200 mL, 500 W, 5 minutes Condition 2: 1 cloth, water 300 mL, 500 W, 6 minutes 30 seconds Condition 3: 1 cloth, water 400 mL, 500 W, 8 minutes

(試験結果)
条件1:試験した10袋の内、全ての袋で通路からの蒸気抜けが確認され、加熱中にチャック部が外れてしまう袋はなかった。
条件2:試験した10袋の内、全ての袋で通路からの蒸気抜けが確認され、加熱中にチャック部が外れてしまう袋はなかった。
条件3:試験した10袋の内、全ての袋で通路からの蒸気抜けが確認されたが、加熱中にチャック部が外れてしまう袋が1袋確認された。
(Test results)
Condition 1: Of the 10 bags tested, steam escape from the passage was confirmed in all the bags, and there was no bag in which the chuck portion came off during heating.
Condition 2: Of the 10 bags tested, steam escape from the passage was confirmed in all the bags, and there was no bag in which the chuck portion came off during heating.
Condition 3: Of the 10 bags tested, steam escape from the passage was confirmed in all the bags, but one bag was confirmed in which the chuck portion came off during heating.

このように、条件1及び条件2では、実施例の袋の成功率は10/10であった。
一方、条件3では、実施例の袋の成功率は9/10であった。
これは、条件3の水の量が多く、通路の径の大きさに対して、加熱時に発生した蒸気の量が多すぎたためだと考えられる。
この場合、内容物の水分量に合わせた通路の径を選択することで、成功率を高めることができると考えられる。
As described above, under the conditions 1 and 2, the success rate of the bag of the example was 10/10.
On the other hand, under condition 3, the success rate of the bag of the example was 9/10.
It is considered that this is because the amount of water in Condition 3 was large and the amount of steam generated during heating was too large for the diameter of the passage.
In this case, it is considered that the success rate can be increased by selecting the diameter of the passage according to the water content of the contents.

このように、本発明の包装袋では、従来の包装袋(比較例)では成功率が低い条件よりもさらに加熱時に発生する水蒸気量が多い条件でも、非常に高い成功率を有していた。
それゆえに、本発明の包装袋は、従来の包装袋よりも、電子レンジ等により飲食品等の内容物を包装袋ごと加熱した際に、より容易に袋体の外に蒸気を十分に逃がすことができ、チャック部が意図せず外れてしまう虞がなく、且つ加熱による飲食品等の内容物への蒸らし効果を十分に得ることができるという優れた効果を奏することがわかった。
As described above, the packaging bag of the present invention had a very high success rate even under the condition that the amount of water vapor generated during heating was larger than the condition where the success rate was lower in the conventional packaging bag (comparative example).
Therefore, the packaging bag of the present invention can more easily release steam to the outside of the bag body more easily when the contents such as food and drink are heated together with the packaging bag by a microwave oven or the like than the conventional packaging bag. It was found that there is no possibility that the chuck portion will come off unintentionally, and that the effect of steaming the contents such as food and drink by heating can be sufficiently obtained, which is an excellent effect.

本発明に係る包装袋によれば、上方に開口部を有する袋本体部と、前記袋本体部の前記開口部近傍の内周面に接着されているチャック部とを有する包装袋であって、前記チャック部は、対向する位置で前記内周面に接着されている雄部及び第1基部を有する第1部分と雌部及び第2基部を有する第2部分とからなり、前記第1基部及び/又は前記第2基部は、前記内周面との間の一部に未接着領域を有し、前記未接着領域において、前記袋本体部の内周面と前記第1基部及び/又は前記第2基部との間には通気可能な少なくとも1つの通路が形成されており、前記通路における前記開口部側の端部の開口径は、前記袋本体部の底部側の端部の開口径よりも大きいため、ガス等が発生する内容物(味噌、洗剤等)を充填する、揮発成分を利用する内容物(芳香剤、消臭剤等)を充填する場合などに、袋本体部と外部との間をガスや揮発成分等を含む空気がスムーズに通過することができ、これらの内容物を長期間安定して充填しておくことができる。
それゆえに、ガス等が発生する内容物(味噌、洗剤等)を充填する、揮発成分を利用する内容物(芳香剤、消臭剤等)を充填する等、通気可能な袋としても幅広く利用することができる。
According to the packaging bag according to the present invention, the packaging bag has a bag body portion having an opening at the top and a chuck portion bonded to the inner peripheral surface of the bag body portion near the opening. The chuck portion is composed of a first portion having a male portion and a first base portion bonded to the inner peripheral surface at opposite positions, and a second portion having a female portion and a second base portion, and the first base portion and the chuck portion. / Or the second base portion has an unbonded region in a part between the inner peripheral surface and the inner peripheral surface of the bag main body portion and the first base portion and / or the first portion in the unbonded region. At least one ventilable passage is formed between the two bases, and the opening diameter of the opening-side end of the passage is larger than the opening diameter of the bottom-side end of the bag body. Because it is large, when filling contents that generate gas etc. (miso, detergent, etc.), or filling contents that use volatile components (fragrances, deodorants, etc.), the bag body and the outside Air containing gas, volatile components, etc. can smoothly pass between them, and these contents can be stably filled for a long period of time.
Therefore, it is widely used as a breathable bag, such as filling contents that generate gas etc. (miso, detergent, etc.), filling contents that use volatile components (fragrances, deodorants, etc.), etc. be able to.

加えて、空気を通すための通路が、チャック部の取り付けと同時に形成されるので、包装袋の製造時に、通路を設ける別工程が不要となり、製造効率に優れている。
また、チャック部の構造自体を加工していないので、チャックが閉め難くなる等の閉め損ねが生じ難い。
In addition, since the passage for passing air is formed at the same time as the attachment of the chuck portion, a separate step of providing the passage is not required at the time of manufacturing the packaging bag, and the manufacturing efficiency is excellent.
Further, since the structure of the chuck portion itself is not processed, it is unlikely that the chuck will be difficult to close and other failures will occur.

さらに、本発明に係る包装袋によれば、電子レンジによる加熱が可能であるため、電子レンジ等により飲食品等の内容物を本発明の包装袋ごと加熱した際に、袋本体部が折れ曲がったとしても、通路を確保することができるため、袋本体部内に生じる蒸気を袋本体部の外に逃がすことができ、チャック部が意図せず外れてしまう虞がなく、容易且つ安定に飲食品等の内容物を加熱調理することができる。 Further, according to the packaging bag according to the present invention, since heating by a microwave oven is possible, the bag body is bent when the contents such as food and drink are heated together with the packaging bag of the present invention by a microwave oven or the like. Even so, since the passage can be secured, the steam generated in the bag body can be released to the outside of the bag body, and there is no risk that the chuck part will come off unintentionally, and food and drink etc. can be easily and stably prepared. The contents of can be cooked.

加えて、前記通路における前記開口部側の端部の開口径は、前記袋本体部の底部側の端部の開口径よりも大きいため、電子レンジ等により飲食品等の内容物を本発明の包装袋ごと加熱した際に、通路において底部側の端部から開口部側の端部に向けて圧力が低くなるように圧力差を形成できる。
この圧力差のため、袋本体部の蒸気を外部に円滑に放出することができる。
そのため、電子レンジ等により飲食品等の内容物を本発明の包装袋ごと加熱した際に、袋体の外に蒸気を十分に逃がすことができ、チャック部が意図せず外れてしまう虞がなく、且つ加熱による飲食品等の内容物への蒸らし効果を十分に得ることができる。
In addition, since the opening diameter of the end on the opening side in the passage is larger than the opening diameter of the end on the bottom side of the bag body, the contents such as food and drink can be prepared by a microwave oven or the like according to the present invention. When the entire packaging bag is heated, a pressure difference can be formed so that the pressure decreases from the end on the bottom side to the end on the opening side in the passage.
Due to this pressure difference, the steam in the bag body can be smoothly released to the outside.
Therefore, when the contents such as food and drink are heated together with the packaging bag of the present invention by a microwave oven or the like, steam can be sufficiently released to the outside of the bag body, and there is no possibility that the chuck portion is unintentionally removed. Moreover, the steaming effect on the contents such as food and drink by heating can be sufficiently obtained.

それゆえに、本発明に係る包装袋は、例えば、調理された内容物(完成品)を充填して加熱する、具材を充填しておき加熱前に調味料を追加する、調味料を充填しておき加熱前に具材を追加する、食品以外(タオル、おしりふき、湿布、液体の薬等)の用途に使用する等、レンジ等による加熱が可能な袋として幅広く利用することができる。 Therefore, the packaging bag according to the present invention is, for example, filled with cooked contents (finished product) and heated, filled with ingredients and added with seasoning before heating, and filled with seasoning. It can be widely used as a bag that can be heated by a microwave oven, etc., such as adding ingredients before heating, using it for purposes other than food (towels, wipes, wet cloths, liquid medicine, etc.).

1 包装袋
11 比較例の包装袋
2 袋本体部
21 開口部
22 底部
23 内周面
24 シール部
3 チャック部
3A 第1部分
3A1 雄部
3A2 第1基部
3B 第2部分
3B1 雌部
3B2 第2基部
34 接着領域
35 非接着領域
4 通路
41 底部側の端部
41D 底部側の端部の開口径
42 開口部側の端部
42D 開口部側の端部の開口径
43 直線部
44 拡大部
45 側部
D 空気(蒸気)の流れ
G 接着層
1 Packaging bag 11 Packaging bag of comparative example 2 Bag body 21 Opening 22 Bottom 23 Inner peripheral surface 24 Sealing 3 Chuck 3A 1st part 3A1 Male part 3A2 1st base 3B 2nd part 3B1 Female part 3B2 2nd base 34 Adhesive area 35 Non-adhesive area 4 Passage 41 Bottom side end 41D Bottom side end opening diameter 42 Opening side end 42D Opening side end opening diameter 43 Straight part 44 Enlarged part 45 Side part D Air (steam) flow G Adhesive layer

Claims (8)

上方に開口部を有する袋本体部と、
前記袋本体部の前記開口部近傍の内周面に接着されているチャック部とを有する包装袋であって、
前記チャック部は、対向する位置で前記内周面に接着されている雄部及び第1基部を有する第1部分と雌部及び第2基部を有する第2部分とからなり、
前記第1基部及び/又は前記第2基部は、前記内周面との間の一部に未接着領域を有し、
前記未接着領域において、前記袋本体部の内周面と前記第1基部及び/又は前記第2基部との間には通気可能な少なくとも1つの通路が形成されており、
前記通路における前記開口部側の端部の開口径は、前記袋本体部の底部側の端部の開口径よりも大きく、
前記通路は、前記底部側の端部から前記底部側の端部の開口径と同じ開口径で延びる直線部と、前記直線部の端部から前記開口部側の端部に向かうにつれて開口径が拡大する拡大部とを有する
ことを特徴とする、包装袋。
A bag body with an opening at the top and
A packaging bag having a chuck portion adhered to an inner peripheral surface in the vicinity of the opening of the bag main body portion.
The chuck portion comprises a first portion having a male portion and a first base portion adhered to the inner peripheral surface at opposite positions, and a second portion having a female portion and a second base portion.
The first base and / or the second base has a non-adhesive region in a part between the first base and / or the inner peripheral surface.
In the unbonded region, at least one ventilable passage is formed between the inner peripheral surface of the bag body and the first base and / or the second base.
Opening diameter of the end portion of the opening side of the passage is much larger than the opening diameter of the end portion of the bottom side of the bag body portion,
The passage has a straight portion extending from the bottom end to the same opening diameter as the bottom end, and an opening diameter increasing from the end of the straight portion toward the opening side end. A packaging bag characterized by having an enlarged portion and an enlarged portion.
電子レンジによる加熱が可能であることを特徴とする、請求項1に記載の包装袋。 The packaging bag according to claim 1, wherein the packaging bag can be heated by a microwave oven. 前記通路における前記底部側の端部の開口径と前記開口部側の端部の開口径の比率が、1:1.1〜1:6であることを特徴とする、請求項1又は2に記載の包装袋。 According to claim 1 or 2, the ratio of the opening diameter of the bottom end portion to the opening diameter of the opening side end portion in the passage is 1: 1.1 to 1: 6. The listed packaging bag. 前記通路は、前記袋本体部における前記チャック部が延びる方向の中心部に1つ設けられていることを特徴とする、請求項1乃至3のいずれか1項に記載の包装袋。 The packaging bag according to any one of claims 1 to 3, wherein one passage is provided at a central portion of the bag main body in a direction in which the chuck portion extends. 複数の前記通路は、互いに間隔を空けて設けられていることを特徴とする、請求項1乃至3のいずれか1項に記載の包装袋。 The packaging bag according to any one of claims 1 to 3, wherein the plurality of passages are provided at intervals from each other. 前記通路における前記底部側の端部と前記開口部側の端部を夫々結ぶ両側の側部は、直線形状、曲線形状、あるいは直線と曲線を組み合わせた形状であることを特徴とする、請求項1乃至5のいずれか1項に記載の包装袋。 A claim, wherein the side portions on both sides connecting the end on the bottom side and the end on the opening side in the passage have a linear shape, a curved shape, or a shape obtained by combining a straight line and a curved line. The packaging bag according to any one of 1 to 5. 前記直線部は、前記雄部及び/又は前記雌部を越えて前記開口部側まで延び、
前記拡大部は、前記雄部及び/又は前記雌部よりも前記開口部側に位置していることを特徴とする、請求項に記載の包装袋。
The straight portion extends beyond the male portion and / or the female portion to the opening side.
The packaging bag according to claim 6 , wherein the enlarged portion is located closer to the opening side than the male portion and / or the female portion.
前記底部は、袋本体部が自立可能となるようにガゼット部を有していることを特徴とする、請求項1乃至のいずれか1項に記載の包装袋。 The packaging bag according to any one of claims 1 to 7 , wherein the bottom portion has a gusset portion so that the bag main body portion can stand on its own.
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