JP7618774B2 - Manufacturing method of packaging bag - Google Patents
Manufacturing method of packaging bag Download PDFInfo
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- JP7618774B2 JP7618774B2 JP2023219752A JP2023219752A JP7618774B2 JP 7618774 B2 JP7618774 B2 JP 7618774B2 JP 2023219752 A JP2023219752 A JP 2023219752A JP 2023219752 A JP2023219752 A JP 2023219752A JP 7618774 B2 JP7618774 B2 JP 7618774B2
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- 238000004806 packaging method and process Methods 0.000 title claims description 75
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- 238000003860 storage Methods 0.000 claims description 26
- 238000000034 method Methods 0.000 claims description 15
- 229920005989 resin Polymers 0.000 claims description 13
- 239000011347 resin Substances 0.000 claims description 13
- 239000004745 nonwoven fabric Substances 0.000 claims description 10
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000005304 joining Methods 0.000 description 11
- 241000209094 Oryza Species 0.000 description 8
- 235000007164 Oryza sativa Nutrition 0.000 description 8
- 235000009566 rice Nutrition 0.000 description 8
- 235000013305 food Nutrition 0.000 description 6
- 239000004698 Polyethylene Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 229920000573 polyethylene Polymers 0.000 description 5
- -1 polyethylene Polymers 0.000 description 4
- 239000004743 Polypropylene Substances 0.000 description 3
- 239000005026 oriented polypropylene Substances 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000009751 slip forming Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 229920005992 thermoplastic resin Polymers 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 239000004820 Pressure-sensitive adhesive Substances 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229920006378 biaxially oriented polypropylene Polymers 0.000 description 1
- 239000011127 biaxially oriented polypropylene Substances 0.000 description 1
- 235000021438 curry Nutrition 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
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- Package Specialized In Special Use (AREA)
- Bag Frames (AREA)
Description
本発明は、加熱された物品を収容する包装袋の製造方法に関する。 The present invention relates to a method for manufacturing a packaging bag for containing heated items.
従来から、樹脂シートを用いて形成された包装袋が知られている。該包装袋は、物品を収容する収容空間を形成する袋本体を備える。該袋本体は、対向するように配置された一対の対向シート部を備えると共に、該一対の対向シート部の間に収容空間が形成される（特許文献１参照）。 Packaging bags formed using resin sheets have been known for some time. The packaging bags have a bag body that forms a storage space for storing items. The bag body has a pair of opposing sheet parts arranged to face each other, and the storage space is formed between the pair of opposing sheet parts (see Patent Document 1).
ところで、上述のような包装袋に収容される物品は、包装袋に収容される前に加熱された状態であったり、包装袋に収容された状態で電子レンジや湯煎等によって加熱されたりする場合がある。例えば、包装袋に収容された物品が米飯加工食品（例えば、チャーハンやおにぎり等）である場合、米飯加工食品を食する際に、包装袋に収容された状態の米飯加工食品が電子レンジ等で加熱される場合がある。 Incidentally, the item contained in the packaging bag as described above may be in a heated state before being contained in the packaging bag, or may be heated in a microwave oven, in a hot water bath, or the like while contained in the packaging bag. For example, if the item contained in the packaging bag is a cooked rice food (e.g., fried rice or rice balls), the cooked rice food may be heated in a microwave oven or the like while contained in the packaging bag when the cooked rice food is eaten.
しかしながら、包装袋に物品が収容されてなる包装体を手で把持する際に、物品が加熱された状態であると、物品の熱が包装袋を介して手に伝わり、包装体を手で把持することが困難になる虞がある。 However, when holding a package in which an item is contained in a packaging bag with the item in a heated state, the heat of the item may be transferred to the hand through the packaging bag, making it difficult to hold the package with the hand.
そこで、本発明は、包装袋に物品が収容されてなる包装体を手で把持する際に、物品が加熱された状態であっても、包装体を手で容易に把持することができる包装袋を提供することを課題とする。 Therefore, the present invention aims to provide a packaging bag that allows the user to easily grasp the package containing an item by hand, even when the item is in a heated state.
本発明は、樹脂シートを用いて袋状に形成されると共に、加熱される物品を収容可能な収容空間を形成する袋本体を備えており、
該袋本体は、対向するように配置された一対の対向シート部を備えると共に、該一対の対向シート部の間に収容空間が形成され、一方向における一対の対向シート部の一端部側で収容空間が閉塞されている包装袋であって、
一対の対向シート部における収容空間を挟んで対向する領域を袋本体の外側から覆うシート状の被覆部材を更に備えており、
該被覆部材は、紙および不織布の少なくとも一方を用いて形成されると共に、一方向における一対の対向シート部の一端部側に配置されており、
被覆部材は、前記一方向に交差する他方向における一対の対向シート部の両端部間に亘って帯状に形成され、
該被覆部材の両端部は、該対向シートの両端部と重なっており、
一対の対向シート部は、被覆部材で覆われた被覆領域と、被覆部材で覆われていない非被覆領域とを備える包装袋を製造する包装袋の製造方法であって、
一対の対向シート部となる一対の対向シート予定部と、該一対の対向シート予定部にそれぞれ重なるように配置された一対の被覆部材予定部とが、長手方向に沿って帯状に延びる包装袋原反を用い、
該包装袋原反を短手方向に沿って切断する工程と、
前記一対の対向シート予定部及び前記一対の被覆部材予定部がそれぞれ対向するように折り曲げた状態で、一対の対向シート部の両端部が連結された本体側方連結部を形成する工程と、を備える包装袋の製造方法である。
The present invention includes a bag body formed in a bag shape using a resin sheet and forming an accommodation space capable of accommodating an item to be heated,
The bag body is a packaging bag comprising a pair of opposing sheet portions arranged to face each other, a storage space is formed between the pair of opposing sheet portions, and the storage space is closed at one end side of the pair of opposing sheet portions in one direction,
The bag further includes a sheet-like covering member that covers, from the outside of the bag body, areas of the pair of opposing sheet portions that face each other across the storage space,
the covering member is formed using at least one of paper and nonwoven fabric, and is disposed on one end side of the pair of opposing sheet portions in one direction;
The covering member is formed in a band shape across both ends of the pair of opposing sheet portions in another direction intersecting the one direction,
Both ends of the covering member overlap both ends of the opposing sheet,
A method for producing a packaging bag, the method comprising the steps of: producing a packaging bag having a pair of opposed sheet portions each having a covered region covered with a covering member and a non-covered region not covered with the covering member, the method comprising the steps of:
A packaging bag raw material is used, in which a pair of opposing sheet portions which become a pair of opposing sheet portions and a pair of covering member portions which are arranged so as to overlap the pair of opposing sheet portions, respectively, extend in a belt shape along the longitudinal direction,
A step of cutting the packaging bag roll along a short side direction;
and forming a main body side connection portion in which both ends of the pair of opposing sheet portions are connected while folding the pair of opposing sheet portions and the pair of covering member portions so that they face each other.
斯かる構成によれば、袋本体が備える一対の対向シート部における収容空間を挟んで対向する領域を袋本体の外側から覆うシート状の被覆部材を備える。また、被覆部材は、紙および不織布の少なくとも一方を用いて形成される。また、被覆部材は、一方向における一対の対向シート部の一端部側に配置される。そして、一対の対向シート部は、被覆部材で覆われた被覆領域と、被覆部材で覆われていない非被覆領域とを備える。また、被覆領域は、一方向における一対の対向シート部の一端部近傍に形成される。 According to this configuration, the bag body is provided with a sheet-like covering member that covers, from the outside of the bag body, the areas of the pair of opposing sheet parts that are opposed to each other across the storage space. The covering member is formed using at least one of paper and nonwoven fabric. The covering member is disposed on one end side of the pair of opposing sheet parts in one direction. The pair of opposing sheet parts have a covered area that is covered with the covering member and an uncovered area that is not covered with the covering member. The covered area is formed near one end of the pair of opposing sheet parts in one direction.
これにより、物品が包装袋に収容されて包装体が形成された状態において、包装袋における被覆部材を備える箇所では、収容空間に収容された物品の熱が包装袋の外側に伝わり難くなる。このため、包装袋における被覆部材を備える箇所を手で把持することで、物品の熱の影響を受けずに包装体を手で容易に把持することができる。
また、非被覆領域から物品の熱が包装袋の外側に放散されるため、被覆部材で一対の対向シート部の全体が覆われている場合（非被覆領域を備えない場合）よりも物品を迅速に冷ますことができる。
As a result, when the article is contained in the packaging bag to form a package, the heat of the article contained in the storage space is less likely to be transferred to the outside of the packaging bag at the portion of the packaging bag that has the covering member, and therefore, by holding the portion of the packaging bag that has the covering member with one's hand, the package can be easily held with one's hand without being affected by the heat of the article.
In addition, since heat from the item is dissipated to the outside of the packaging bag through the uncovered areas, the item can be cooled more quickly than if the pair of opposing sheet portions were entirely covered with the covering member (if there were no uncovered areas).
以上のように、本発明によれば、包装袋に物品が収容されてなる包装体を手で把持する際に、物品が加熱された状態であっても、包装体を手で容易に把持することができる包装袋を提供することができる。 As described above, according to the present invention, a packaging bag can be provided that allows the user to easily grasp the package containing an item by hand, even when the item is in a heated state.
以下に、本発明に係る製造方法で製造された包装袋の一実施形態について、図１～３に基づいて説明する。なお、以下の図面において同一又は相当する部分には同一の参照符号を付しその説明は繰り返さない。また、以下の説明では、一方向とは、各図におけるｘ軸方向であり、他方向とは、各図におけるｙ軸方向である。また、一対の対向シート部１１，１１が対向する方向は、ｚ軸方向である。 Below, one embodiment of a packaging bag manufactured by the manufacturing method according to the present invention will be described with reference to Figures 1 to 3. Note that in the following drawings, the same or corresponding parts are given the same reference characters and their description will not be repeated. In the following description, one direction is the x-axis direction in each drawing, and the other direction is the y-axis direction in each drawing. Also, the direction in which a pair of opposing sheet portions 11, 11 face each other is the z-axis direction.
図１，２に示すように、本実施形態に係る包装袋１００は、シート材を用いて袋状に形成される袋本体１０と、該袋本体１０の一部を袋本体１０の外側から覆うシート状の被覆部材２０とを備える。 As shown in Figures 1 and 2, the packaging bag 100 according to this embodiment includes a bag body 10 formed into a bag shape using a sheet material, and a sheet-like covering member 20 that covers a portion of the bag body 10 from the outside of the bag body 10.
袋本体１０は、樹脂シートを用いて形成される。樹脂シートとしては、特に限定されるものではなく、例えば、無軸延伸ポリプロピレン（ＣＰＰ）フィルム、二軸延伸ポリプロピレン（ＯＰＰ）フィルム、ポリエチレン（ＰＥ）フィルム、二軸延伸ナイロン（ＯＮＹ）フィルム、および、ポリエチレンテレフタレート（ＰＥＴ）フィルム等を用いることができる。後述するように被覆部材２０と袋本体１０とを熱融着する場合には、樹脂シートとして、ＣＰＰやＯＰＰを用いることが好ましい。 The bag body 10 is formed using a resin sheet. The resin sheet is not particularly limited, and examples that can be used include non-axially oriented polypropylene (CPP) film, biaxially oriented polypropylene (OPP) film, polyethylene (PE) film, biaxially oriented nylon (ONY) film, and polyethylene terephthalate (PET) film. When the covering member 20 and the bag body 10 are heat-sealed as described below, it is preferable to use CPP or OPP as the resin sheet.
また、袋本体１０は、物品を収容可能な収容空間Ｒを形成する。
また、袋本体１０は、収容空間Ｒを挟んで対向するように配置された一対の対向シート部１１，１１と、一方向における一対の対向シート部１１，１１の一端部同士を連結する連結シート部１２とを備える。具体的には、袋本体１０は、一方向に延びる筒状に形成されて内側に収容空間Ｒが形成される筒状部１０ａと、前記一方向における筒状部１０ａの一端部を閉塞する閉塞部１０ｂと、前記一方向における筒状部１０ａの他端部に形成されて収容空間Ｒを外側に開放する開口部１０ｃとを備える。
In addition, the bag body 10 forms a storage space R capable of storing items.
Moreover, the bag body 10 includes a pair of opposing sheet portions 11, 11 arranged to face each other with the storage space R therebetween, and a connecting sheet portion 12 connecting one end of the pair of opposing sheet portions 11, 11 in one direction. Specifically, the bag body 10 includes a tubular portion 10a formed in a cylindrical shape extending in one direction and having the storage space R formed therein, a closing portion 10b closing one end of the tubular portion 10a in the one direction, and an opening portion 10c formed at the other end of the tubular portion 10a in the one direction and opening the storage space R to the outside.
筒状部１０ａは、一対の対向シート部１１，１１によって形成される。具体的には、筒状部１０ａは、前記一方向に交差する他方向における一方の対向シート部１１の両端部と、前記他方向における他方の対向シート部１１の両端部とが連結されて筒状に形成されてなるものである。閉塞部１０ｂは、連結シート部１２によって形成される。 The cylindrical portion 10a is formed by a pair of opposing sheet portions 11, 11. Specifically, the cylindrical portion 10a is formed by connecting both ends of one opposing sheet portion 11 in another direction intersecting the one direction and both ends of the other opposing sheet portion 11 in the other direction to form a cylindrical shape. The blocking portion 10b is formed by a connecting sheet portion 12.
また、一対の対向シート部１１，１１と連結シート部１２とは、一枚の樹脂シートを用いて形成される。具体的には、一枚の樹脂シートは、一対の対向シート部１１，１１となる領域を備えると共に、その領域の間に連結シート部１２となる領域を備える。そして、一対の対向シート部１１，１１となる領域と連結シート部１２となる領域との境界部分で樹脂シートが折り曲げられ、一対の対向シート部１１，１１となる領域が対向するように配置されると共に、連結シート部１２となる領域が一対の対向シート部１１，１１となる領域の間に折り込まれる。これにより、一対の対向シート部１１，１１と連結シート部１２とが形成される。 The pair of opposing sheet portions 11, 11 and the connecting sheet portion 12 are formed using a single resin sheet. Specifically, the single resin sheet has an area that will become the pair of opposing sheet portions 11, 11, and an area that will become the connecting sheet portion 12 between the areas. The resin sheet is then folded at the boundary between the area that will become the pair of opposing sheet portions 11, 11 and the area that will become the connecting sheet portion 12, so that the areas that will become the pair of opposing sheet portions 11, 11 are arranged to face each other, and the area that will become the connecting sheet portion 12 is folded between the areas that will become the pair of opposing sheet portions 11, 11. This forms the pair of opposing sheet portions 11, 11 and the connecting sheet portion 12.
また、袋本体１０は、前記他方向における一方の対向シート部１１の両端部と、前記他方向における他方の対向シート部１１の両端部とが連結されて形成された一対の本体側方連結部Ｓ１を備える。該一対の本体側方連結部Ｓ１は、前記一方向に沿って連続的に（具体的には、帯状に）形成される。また、各本体側方連結部Ｓ１は、一方の対向シート部１１の端部と、他方の対向シート部１１の端部とが直接連結された領域と、前記他方向における連結シート部１２の端部を介して間接的に連結された領域とを備える。 The bag body 10 also has a pair of body side connecting parts S1 formed by connecting both ends of one opposing sheet part 11 in the other direction to both ends of the other opposing sheet part 11 in the other direction. The pair of body side connecting parts S1 are formed continuously (specifically, in a band shape) along the one direction. Each body side connecting part S1 also has an area where the end of one opposing sheet part 11 is directly connected to the end of the other opposing sheet part 11, and an area where they are indirectly connected via the end of the connecting sheet part 12 in the other direction.
また、袋本体１０は、前記他方向における両端部（具体的には、一対の本体側方連結部Ｓ１）の少なくとも一方が切り欠かれて形成された切欠部１１ａを備える。該切欠部１１ａは、一対の本体側方連結部Ｓ１のそれぞれに（具体的には、前記他方向において対向する位置に）形成される。 The bag body 10 also has a notch 11a formed by cutting out at least one of both ends in the other direction (specifically, the pair of body side connecting parts S1). The notch 11a is formed in each of the pair of body side connecting parts S1 (specifically, at a position facing each other in the other direction).
一対の対向シート部１１，１１は、被覆部材２０で覆われた被覆領域１１ｂと、被覆部材２０で覆われていない非被覆領域１１ｃとを備える。 The pair of opposing sheet portions 11, 11 has a covered area 11b covered with a covering member 20 and a non-covered area 11c that is not covered with the covering member 20.
被覆領域１１ｂは、前記一方向における一対の対向シート部１１，１１の一端部近傍に形成される。また、被覆領域１１ｂは、前記他方向における一対の対向シート部１１，１１の両端部間の領域の少なくとも一部（好ましくは中央部）に形成される。具体的には、被覆領域１１ｂは、前記他方向における一対の対向シート部１１，１１の両端部間の全域に形成される。 The covering region 11b is formed near one end of the pair of opposing sheet portions 11, 11 in the one direction. The covering region 11b is also formed in at least a portion (preferably the center) of the region between both ends of the pair of opposing sheet portions 11, 11 in the other direction. Specifically, the covering region 11b is formed in the entire region between both ends of the pair of opposing sheet portions 11, 11 in the other direction.
非被覆領域１１ｃは、前記一方向における被覆領域１１ｂより一対の対向シート部１１，１１の一端部側の領域であって該一端部を含む領域（以下では、一端側非被覆領域１１ｄとも記す）と、前記一方向における被覆領域１１ｂよりも一対の対向シート部１１，１１の他端部側（即ち、開口部１０ｃ側）の領域（以下では、他端側非被覆領域１１ｅとも記す）とに形成される。つまり、前記一方向において、一端側非被覆領域１１ｄと他端側非被覆領域１１ｅとの間に被覆領域１１ｂが形成される。 The non-covered region 11c is formed in a region on the one end side of the pair of opposing sheet portions 11, 11 from the covered region 11b in the one direction and including the one end (hereinafter also referred to as the one end non-covered region 11d), and a region on the other end side of the pair of opposing sheet portions 11, 11 from the covered region 11b in the one direction (i.e., the opening 10c side) (hereinafter also referred to as the other end non-covered region 11e). In other words, the covered region 11b is formed between the one end non-covered region 11d and the other end non-covered region 11e in the one direction.
一端側非被覆領域１１ｄは、前記他方向に延びる帯状に形成される。帯状に形成された一端側非被覆領域１１ｄの幅としては、特に限定されるものではなく、例えば、３ｍｍ～５ｍｍであってもよい。 The one-end uncoated region 11d is formed in a band shape extending in the other direction. The width of the one-end uncoated region 11d formed in a band shape is not particularly limited and may be, for example, 3 mm to 5 mm.
他端側非被覆領域１１ｅは、前記一方向における被覆領域１１ｂよりも一対の対向シート部１１，１１の他端部側の領域の全体に形成される。また、他端側非被覆領域１１ｅには、切欠部１１ａが形成される。 The other end uncovered region 11e is formed over the entire area of the other end side of the pair of opposing sheet portions 11, 11, closer to the covered region 11b in the one direction. Also, a notch 11a is formed in the other end uncovered region 11e.
被覆部材２０は、紙および不織布の少なくとも一方を用いて形成される。後述するように被覆部材２０と袋本体１０（具体的には、一対の対向シート部１１，１１）とを熱融着する場合には、被覆部材２０を形成するシート材として、紙または不織布の層と熱可塑性樹脂の層とを備えるものが好ましい。
紙としては、和紙、レーヨン、雲竜、純白紙等が挙げられる。また、紙としては、耐油性や耐水性を有するもの、ヒートシール性を有するものであってもよい。また、紙としては、坪量が９ｇ／ｍ２以上１００ｇ／ｍ２以下であってもよい。
不織布としては、ＰＰ系不織布、ＰＥ系不織布等が挙げられる。また、不織布としては、厚みが０．１５ｍｍ以上０．５ｍｍ以下であってもよい。
熱可塑性樹脂としては、ポリエチレン（ＰＥ）やポリプロピレン（ＰＰ）等が挙げられる。
被覆部材２０の厚みとしては、特に限定されるものではなく、例えば、３０μｍ以上であることが好ましい。
The covering member 20 is formed using at least one of paper and nonwoven fabric. When the covering member 20 and the bag body 10 (specifically, the pair of opposing sheet portions 11, 11) are heat-sealed as described below, the sheet material forming the covering member 20 is preferably one that includes a layer of paper or nonwoven fabric and a layer of thermoplastic resin.
Examples of the paper include Japanese paper, rayon, Unryu paper, and pure white paper. The paper may be oil-resistant or water-resistant, or may have heat-sealing properties. The paper may have a basis weight of 9 g/m2 or more and 100 g/m2 or less.
Examples of the nonwoven fabric include PP-based nonwoven fabric, PE-based nonwoven fabric, etc. The nonwoven fabric may have a thickness of 0.15 mm or more and 0.5 mm or less.
Examples of the thermoplastic resin include polyethylene (PE) and polypropylene (PP).
The thickness of the covering member 20 is not particularly limited, but is preferably, for example, 30 μm or more.
被覆部材２０は、一対の対向シート部１１，１１における収容空間Ｒを挟んで対向する領域を袋本体１０の外側から覆うように配置される。具体的には、包装袋１００は、一対の被覆部材２０，２０を備えており、一対の対向シート部１１，１１における収容空間Ｒを挟んで対向する領域の一方が一方の被覆部材２０で覆われ、一対の対向シート部１１，１１における収容空間Ｒを挟んで対向する領域の他方が他方の被覆部材２０で覆われる。 The covering member 20 is arranged so as to cover, from the outside of the bag body 10, the areas of the pair of opposing sheet portions 11, 11 that face each other across the storage space R. Specifically, the packaging bag 100 is provided with a pair of covering members 20, 20, and one of the areas of the pair of opposing sheet portions 11, 11 that face each other across the storage space R is covered by one covering member 20, and the other of the areas of the pair of opposing sheet portions 11, 11 that face each other across the storage space R is covered by the other covering member 20.
また、被覆部材２０は、前記一方向における一対の対向シート部１１，１１の一端部側（具体的には、中央部よりも一端部側）に配置される。
更に、被覆部材２０は、前記一方向における一対の対向シート部１１，１１の一端部よりも他端部側に配置される。具体的には、被覆部材２０は、前記一方向における一対の対向シート部１１，１１の一端縁から他端部側に３ｍｍ～５ｍｍ離れた位置に配置される。
The covering member 20 is disposed on one end side (specifically, closer to the one end side than the center portion) of the pair of opposing sheet portions 11, 11 in the one direction.
Furthermore, the covering member 20 is disposed on the other end side of one end of the pair of opposing sheet portions 11, 11 in the one direction. Specifically, the covering member 20 is disposed at a position 3 mm to 5 mm away from one edge of the pair of opposing sheet portions 11, 11 on the other end side in the one direction.
また、被覆部材２０は、前記他方向における一対の対向シート部１１，１１の両端部間の領域における少なくとも一部（好ましくは中央部）を覆うように形成される。具体的には、被覆部材２０は、前記他方向における一対の対向シート部１１，１１の両端部間の全域を覆うように帯状に形成される。 The covering member 20 is formed so as to cover at least a portion (preferably the center portion) of the region between both ends of the pair of opposing sheet portions 11, 11 in the other direction. Specifically, the covering member 20 is formed in a band shape so as to cover the entire region between both ends of the pair of opposing sheet portions 11, 11 in the other direction.
前記一方向における被覆部材２０の両端間の長さ（即ち、前記一方向における被覆領域１１ｂの両端間の長さに相当する長さ）としては、特に限定されるものではない。例えば、前記一方向における被覆部材２０の両端間の長さは、連結シート部１２を完全に折り畳んだ状態で前記一方向における連結シート部１２の両端間（前記他方向に延びる両端間）の長さに対して１．５倍以上であってもよく、２倍以上であってもよく、１０倍以下であってもよく、３倍以下であってもよい。また、前記一方向における被覆部材２０の両端間の長さは、５０ｍｍ以上であってもよく、５５ｍｍ以上であってもよく、６０ｍｍ以上であってもよく、１００ｍｍ以下であってもよく、９０ｍｍ以下であってもよい。 The length between both ends of the covering member 20 in the one direction (i.e., the length corresponding to the length between both ends of the covering region 11b in the one direction) is not particularly limited. For example, the length between both ends of the covering member 20 in the one direction may be 1.5 times or more, 2 times or more, 10 times or less, or 3 times or less than the length between both ends of the connecting sheet portion 12 in the one direction (between both ends extending in the other direction) when the connecting sheet portion 12 is fully folded. In addition, the length between both ends of the covering member 20 in the one direction may be 50 mm or more, 55 mm or more, 60 mm or more, 100 mm or less, or 90 mm or less.
また、被覆部材２０は、前記他方向における両端部が一対の本体側方連結部Ｓ１，Ｓ１と重なるように配置される。そして、被覆部材２０は、前記他方向における両端部が一対の本体側方連結部Ｓ１，Ｓ１と連結される（具体的には、前記一方向に沿って帯状に連結される）。 The covering member 20 is arranged so that both ends in the other direction overlap with the pair of main body side connecting parts S1, S1. The covering member 20 is connected at both ends in the other direction to the pair of main body side connecting parts S1, S1 (specifically, connected in a band shape along the one direction).
被覆部材２０は、袋本体１０（具体的には、一対の対向シート部１１，１１）と接合された被覆部材接合部２０ａと、袋本体１０（具体的には、一対の対向シート部１１，１１）と接合されていない被覆部材非接合部２０ｂとを備える。具体的には、被覆部材２０は、前記他方向における両端部間の領域に、被覆部材接合部２０ａおよび被覆部材非接合部２０ｂを備える。 The covering member 20 has a covering member joint portion 20a that is joined to the bag body 10 (specifically, the pair of opposing sheet portions 11, 11) and a covering member non-joined portion 20b that is not joined to the bag body 10 (specifically, the pair of opposing sheet portions 11, 11). Specifically, the covering member 20 has the covering member joint portion 20a and the covering member non-joined portion 20b in the region between both ends in the other direction.
被覆部材接合部２０ａは、前記他方向における被覆部材２０の両端部間の領域に千鳥状に点在するように形成される。
また、被覆部材非接合部２０ｂは、被覆部材２０の端部よりも内側の領域から被覆部材２０の端部に達すように連続的に形成される。具体的には、被覆部材非接合部２０ｂは、被覆部材２０の端部よりも内側の領域と、前記一方向における被覆部材２０の両端部（より詳しくは、前記他方向に延びる帯状の両端部）とに形成される。そして、被覆部材２０の端部よりも内側の被覆部材非接合部２０ｂと被覆部材２０の両端部の被覆部材非接合部２０ｂとが連なるように形成される。これにより、被覆部材非接合部２０ｂは、被覆部材２０の端部よりも内側の領域から被覆部材２０の両端部に達すように連続的に形成される。
The covering member joints 20a are formed so as to be scattered in a staggered pattern in the region between both ends of the covering member 20 in the other direction.
Moreover, the covering member non-joining portion 20b is continuously formed from a region inside the end of the covering member 20 so as to reach the end of the covering member 20. Specifically, the covering member non-joining portion 20b is formed in a region inside the end of the covering member 20 and at both ends of the covering member 20 in the one direction (more specifically, at both ends of the band-like shape extending in the other direction). The covering member non-joining portion 20b inside the end of the covering member 20 and the covering member non-joining portion 20b at both ends of the covering member 20 are formed so as to be continuous. As a result, the covering member non-joining portion 20b is continuously formed from a region inside the end of the covering member 20 so as to reach both ends of the covering member 20.
上記のように、被覆部材２０の端部よりも内側の領域から被覆部材２０の両端部に達すように被覆部材非接合部２０ｂが連続的に形成されることで、後述する包装袋原反２００を巻き回してロール状にする際に、一対の対向シート予定部１１’，１１’と被覆部材予定部２０’との間から空気が排出される。このため、包装袋原反２００をロール状に安定して巻き回すことができる。 As described above, the covering member non-jointed portion 20b is continuously formed from the region inside the end of the covering member 20 to reach both ends of the covering member 20. This allows air to be discharged between the pair of opposing sheet portions 11', 11' and the covering member portion 20' when the packaging bag original roll 200 is rolled into a roll, as described below. This allows the packaging bag original roll 200 to be stably rolled into a roll.
被覆部材２０と袋本体１０（具体的には、一対の対向シート部１１，１１）とを接合する方法としては、特に限定されるものではなく、例えば、被覆部材２０と袋本体１０（具体的には、一対の対向シート部１１，１１）とを熱融着する方法であってもよく、接着剤や粘着シートを用いる方法であってもよい。 The method for joining the covering member 20 and the bag body 10 (specifically, the pair of opposing sheet portions 11, 11) is not particularly limited, and may be, for example, a method of heat-sealing the covering member 20 and the bag body 10 (specifically, the pair of opposing sheet portions 11, 11), or a method using an adhesive or a pressure-sensitive adhesive sheet.
上記のように構成される包装袋１００は、図３に示す包装袋原反２００から形成することができる。
包装袋原反２００は、一対の対向シート部１１，１１となる一対の対向シート予定部１１’，１１’を一方向の両端部に備える。また、包装袋原反２００は、連結シート部１２となる連結シート予定部１２’を前記一方向における一対の対向シート予定部１１’，１１’の間に備える。また、包装袋原反２００は、被覆部材２０となる被覆部材予定部２０’であって一対の対向シート予定部１１’，１１’のそれぞれに重なるように配置された被覆部材予定部２０’を備える。包装袋原反２００（一対の対向シート予定部１１’，１１’と連結シート予定部１２’と被覆部材予定部２０’）は、他方向に長尺状に形成される。
The packaging bag 100 configured as described above can be formed from a packaging bag roll 200 shown in FIG.
The packaging bag original roll 200 has a pair of opposing sheet portions 11', 11' which become a pair of opposing sheet portions 11, 11 at both ends in one direction. The packaging bag original roll 200 also has a connecting sheet portion 12' which becomes a connecting sheet portion 12 between the pair of opposing sheet portions 11', 11' in the one direction. The packaging bag original roll 200 also has a covering member portion 20' which becomes a covering member 20 and is arranged so as to overlap each of the pair of opposing sheet portions 11', 11'. The packaging bag original roll 200 (the pair of opposing sheet portions 11', 11', the connecting sheet portion 12', and the covering member portion 20') is formed in an elongated shape in the other direction.
そして、包装袋原反２００から所定の大きさのシート材２０１を切り出し、一対の対向シート予定部１１’，１１’と連結シート予定部１２’との境界部分でシート材２０１を折り曲げて一対の対向シート予定部１１’，１１’を対向させると共に、一対の対向シート予定部１１’，１１’の間に連結シート予定部１２’を折り込む。これにより、一対の対向シート部１１，１１と連結シート部１２とを形成する。そして、前記他方向における一方の対向シート部１１の両端部と前記他方向における他方の対向シート部１１の両端部とを連結して本体側方連結部Ｓ１を形成することで、包装袋１００を形成する。 Then, a sheet material 201 of a predetermined size is cut out from the packaging bag roll 200, and the sheet material 201 is folded at the boundary between the pair of opposing sheet portions 11', 11' and the connecting sheet portion 12' to make the pair of opposing sheet portions 11', 11' face each other, and the connecting sheet portion 12' is folded between the pair of opposing sheet portions 11', 11'. This forms the pair of opposing sheet portions 11, 11 and the connecting sheet portion 12. Then, both ends of one opposing sheet portion 11 in the other direction and both ends of the other opposing sheet portion 11 in the other direction are connected to form the main body side connecting portion S1, thereby forming the packaging bag 100.
上記のように構成される包装袋１００には、加熱された物品が収容される。包装袋１００に収容される物品としては、特に限定されるものではなく、例えば、粒状、粉状、または、液状のものが挙げられる。また、包装袋１００に収容される物品としては、例えば、米飯加工食品（具体的には、チャーハンやおにぎり等）、サンドイッチ、カレー等の食品であってもよく、食品以外の物品であってもよい。
また、包装袋１００に収容される物品は、包装袋１００に収容される前に加熱されてもよく、包装袋１００に収容された後で加熱されてもよい。物品を加熱する方法としては、特に限定されるものではなく、例えば、電子レンジ、オーブン、湯煎等が挙げられる。
The packaging bag 100 configured as described above contains a heated item. The item contained in the packaging bag 100 is not particularly limited, and may be, for example, a granular, powdered, or liquid item. The item contained in the packaging bag 100 may be, for example, a food such as a cooked rice food (specifically, fried rice, rice balls, etc.), a sandwich, or a curry, or may be an item other than a food.
Furthermore, the article to be contained in the packaging bag 100 may be heated before being contained in the packaging bag 100, or may be heated after being contained in the packaging bag 100. The method for heating the article is not particularly limited, and examples thereof include a microwave oven, an oven, and a hot water bath.
包装袋１００は、物品が収容された状態で収容空間Ｒが閉塞される。収容空間Ｒを閉塞する方法としては、特に限定されるものではなく、例えば、筒状部１０ａの開口部１０ｃを閉塞するようにシールすることで、収容空間Ｒを閉塞してもよい。又は、包装袋１００に収容された物品と開口部１０ｃとの間の位置で筒状部１０ａ（具体的には、一対の対向シート部１１，１１）を捻りまわすことで、収容空間Ｒを閉塞してもよい。 When the packaging bag 100 contains an item, the storage space R is closed. The method for closing the storage space R is not particularly limited, and for example, the storage space R may be closed by sealing the opening 10c of the tubular portion 10a to close it. Alternatively, the storage space R may be closed by twisting the tubular portion 10a (specifically, the pair of opposing sheet portions 11, 11) at a position between the item contained in the packaging bag 100 and the opening 10c.
以上のように、本実施形態に係る包装袋１００によれば、包装袋１００に物品が収容されてなる包装体を手で把持する際に、物品が加熱された状態であっても、包装体を手で容易に把持することができる。 As described above, according to the packaging bag 100 of this embodiment, when a package in which an item is contained in the packaging bag 100 is grasped by hand, the package can be easily grasped by hand even when the item is in a heated state.
即ち、袋本体１０が備える一対の対向シート部１１，１１における収容空間Ｒを挟んで対向する領域を袋本体１０の外側から覆うシート状の被覆部材２０を備える。また、被覆部材２０は、紙および不織布の少なくとも一方を用いて形成される。また、被覆部材２０は、一方向における一対の対向シート部１１，１１の一端部側に配置される。そして、一対の対向シート部１１，１１は、被覆部材２０で覆われた被覆領域１１ｂと、被覆部材２０で覆われていない非被覆領域１１ｃとを備える。また、被覆領域１１ｂは、一方向における一対の対向シート部１１，１１の一端部近傍に形成される。 That is, the bag body 10 includes a sheet-like covering member 20 that covers opposing areas of a pair of opposing sheet portions 11, 11 that sandwich the storage space R from the outside of the bag body 10. The covering member 20 is formed using at least one of paper and nonwoven fabric. The covering member 20 is disposed on one end side of the pair of opposing sheet portions 11, 11 in one direction. The pair of opposing sheet portions 11, 11 includes a covering area 11b that is covered with the covering member 20 and a non-covered area 11c that is not covered with the covering member 20. The covering area 11b is formed near one end of the pair of opposing sheet portions 11, 11 in one direction.
これにより、物品が包装袋１００に収容されて包装体（図示せず）が形成された状態において、包装袋１００における被覆部材２０を備える箇所では、収容空間Ｒに収容された物品の熱が包装袋１００の外側に伝わり難くなる。このため、包装袋１００における被覆部材２０を備える箇所を手で把持することで、物品の熱の影響を受けずに包装体を容易に把持することができる。また、非被覆領域１１ｃから物品の熱が包装袋１００の外側に放散されるため、被覆部材２０で一対の対向シート部１１，１１の全体が覆われている場合（非被覆領域１１ｃを備えない場合）よりも物品を迅速に冷ますことができる。 As a result, when an item is contained in the packaging bag 100 and a package (not shown) is formed, the heat of the item contained in the storage space R is less likely to be transferred to the outside of the packaging bag 100 at the portion of the packaging bag 100 that has the covering member 20. Therefore, by gripping the portion of the packaging bag 100 that has the covering member 20 with one's hand, the package can be easily gripped without being affected by the heat of the item. In addition, since the heat of the item is dissipated to the outside of the packaging bag 100 from the non-covered region 11c, the item can be cooled more quickly than when the pair of opposing sheet portions 11, 11 are entirely covered by the covering member 20 (when the non-covered region 11c is not provided).
また、袋本体１０は、前記一方向における一対の対向シート部１１，１１の一端部同士を連結する連結シート部１２を備える。また、非被覆領域１１ｃは、前記一方向における被覆領域１１ｂよりも一対の対向シート部１１，１１の一端部側の領域であって該一端部を含む領域と、前記一方向における被覆領域１１ｂよりも一対の対向シート部１１，１１の他端側の領域とに形成される。 The bag body 10 also includes a connecting sheet portion 12 that connects one end of the pair of opposing sheet portions 11, 11 in the one direction. The non-covered region 11c is formed in a region that is closer to one end of the pair of opposing sheet portions 11, 11 than the covered region 11b in the one direction and includes the one end, and in a region that is closer to the other end of the pair of opposing sheet portions 11, 11 than the covered region 11b in the one direction.
ここで、物品が包装袋１００に収容されて包装体（図示せず）が形成された状態において、包装袋１００に収容された物品が粒状や粉状である場合、前記一方向における一対の対向シート部１１，１１の一端部と連結シート部１２との連結位置の近傍に物品が溜まる場合がある。しかしながら、上記のように、前記一方向における一対の対向シート部１１，１１の一端部を含む領域に非被覆領域１１ｃ（以下、一端側非被覆領域１１ｄとも記す）が形成されることで、包装袋１００は、被覆部材２０を備える領域よりも一端側非被覆領域１１ｄの方が変形し易くなる。これにより、前記一方向における一対の対向シート部１１，１１の一端部と連結シート部１２との連結位置の近傍に物品が溜まるような場合であっても、一端側非被覆領域１１ｄを変形させることで溜まった物品を容易に取り出すことができる。 Here, when the article is contained in the packaging bag 100 and a package (not shown) is formed, if the article contained in the packaging bag 100 is granular or powdery, the article may accumulate near the connection position between one end of the pair of opposing sheet parts 11, 11 in the one direction and the connecting sheet part 12. However, as described above, by forming the uncovered area 11c (hereinafter also referred to as the one-end uncovered area 11d) in the area including one end of the pair of opposing sheet parts 11, 11 in the one direction, the one-end uncovered area 11d of the packaging bag 100 is more likely to deform than the area provided with the covering member 20. As a result, even if the article accumulates near the connection position between one end of the pair of opposing sheet parts 11, 11 in the one direction and the connecting sheet part 12, the accumulated article can be easily removed by deforming the one-end uncovered area 11d.
また、被覆部材２０は、前記一方向に交差する他方向における一対の対向シート部１１，１１の両端部間に亘って帯状に形成される。このため、物品が包装袋１００に収容されて包装体（図示せず）が形成された状態において、包装袋１００における被覆部材２０を備える領域をより容易に手で把持することができる。 The covering member 20 is formed in a strip shape across both ends of the pair of opposing sheet portions 11, 11 in the other direction intersecting the one direction. Therefore, when an article is contained in the packaging bag 100 and a package (not shown) is formed, the area of the packaging bag 100 that includes the covering member 20 can be more easily grasped by hand.
また、被覆部材２０は、袋本体１０と接合された被覆部材接合部２０ａと、袋本体１０と接合されていない被覆部材非接合部２０ｂとを備える。また、被覆部材非接合部２０ｂは、被覆部材２０の端部よりも内側の領域から被覆部材２０の端部に達すように連続的に形成される。 The covering member 20 also includes a covering member joint portion 20a that is joined to the bag body 10, and a covering member non-joined portion 20b that is not joined to the bag body 10. The covering member non-joined portion 20b is formed continuously from an area inside the end of the covering member 20 to reach the end of the covering member 20.
このため、物品が包装袋１００に収容されて包装体（図示せず）が形成された状態において、被覆部材非接合部２０ｂと袋本体１０との間の熱が被覆部材２０の端部と袋本体１０との間から排出されるため、包装袋１００における被覆部材２０を備える領域をより容易に手で把持することができる。 As a result, when an item is contained in the packaging bag 100 and a package (not shown) is formed, the heat between the non-jointed portion 20b of the covering member and the bag body 10 is discharged from between the end of the covering member 20 and the bag body 10, making it easier to grasp the area of the packaging bag 100 that includes the covering member 20 with the hand.
なお、本発明に係る製造方法で製造された包装袋は、上記実施形態に限定されるものではなく、本発明の要旨を逸脱しない範囲で種々の変更が可能である。また、上記した複数の実施形態の構成や方法等を任意に採用して組み合わせてもよく（１つの実施形態に係る構成や方法等を他の実施形態に係る構成や方法等に適用してもよく）、さらに、下記の各種の変更例に係る構成や方法等を任意に選択して、上記の実施形態に係る構成や方法等に採用してもよいことは勿論である。 The packaging bag manufactured by the manufacturing method according to the present invention is not limited to the above embodiment, and various modifications are possible without departing from the gist of the present invention. In addition, the configurations and methods of the above-mentioned embodiments may be arbitrarily adopted and combined (the configurations and methods of one embodiment may be applied to the configurations and methods of other embodiments), and further, the configurations and methods of the various modified examples below may be arbitrarily selected and adopted in the configurations and methods of the above-mentioned embodiments.
例えば、上記実施形態では、被覆部材非接合部２０ｂは、被覆部材２０の端部よりも内側の領域から被覆部材２０の端部に達すように連続的に形成されるが、これに限定されるものではない。
例えば、図４に示すように、被覆部材２０の端部よりも内側に形成された被覆部材非接合部２０ｂと被覆部材２０の端部に形成された被覆部材非接合部２０ｂとの間に被覆部材接合部２０ａが形成されることで、被覆部材２０の端部よりも内側の被覆部材非接合部２０ｂが被覆部材２０の端部の被覆部材非接合部２０ｂに達しないように構成されてもよい。具体的には、前記他方向における一対の対向シート部１１，１１（具体的には、筒状部１０ａ）の両端間の全域に亘って被覆部材接合部２０ａが帯状に形成されると共に、該被覆部材接合部２０ａが前記一方向に間隔を空けて複数形成される。そして、前記一方向における被覆部材２０の両端部と、隣り合う被覆部材接合部２０ａの間の領域（即ち、被覆部材２０の端部よりも内側の領域）とに被覆部材非接合部２０ｂが形成される。これにより、前記一方向における被覆部材２０の両端部に形成された被覆部材非接合部２０ｂと、隣り合う被覆部材接合部２０ａの間（即ち、被覆部材２０の端部よりも内側）に形成された被覆部材非接合部２０ｂとの間に、被覆部材接合部２０ａが位置することになる。このため、被覆部材２０の端部よりも内側の被覆部材非接合部２０ｂは、被覆部材接合部２０ａによって被覆部材２０の端部の被覆部材非接合部２０ｂに達しないように構成される。
For example, in the above embodiment, the non-jointed portion 20b of the covering member is formed continuously from a region inside the end of the covering member 20 to reach the end of the covering member 20, but this is not limited to this.
For example, as shown in Fig. 4, a covering member joint 20a may be formed between a covering member non-joining portion 20b formed on the inside of the end of the covering member 20 and a covering member non-joining portion 20b formed at the end of the covering member 20, so that the covering member non-joining portion 20b on the inside of the end of the covering member 20 does not reach the covering member non-joining portion 20b at the end of the covering member 20. Specifically, the covering member joint 20a is formed in a band shape over the entire area between both ends of a pair of opposing sheet portions 11, 11 (specifically, the cylindrical portion 10a) in the other direction, and a plurality of the covering member joints 20a are formed at intervals in the one direction. Then, the covering member non-joining portions 20b are formed at both ends of the covering member 20 in the one direction and in the area between the adjacent covering member joints 20a (i.e., the area inside the end of the covering member 20). As a result, the covering member joint portions 20a are located between the covering member non-joined portions 20b formed on both ends of the covering member 20 in the one direction and the covering member non-joined portions 20b formed between adjacent covering member joint portions 20a (i.e., on the inside of the ends of the covering member 20). Therefore, the covering member non-joined portions 20b on the inside of the ends of the covering member 20 are configured not to reach the covering member non-joined portions 20b at the ends of the covering member 20 by the covering member joint portions 20a.
これにより、物品が包装袋１００に収容されて包装体（図示せず）が形成された状態において、被覆部材２０の端部よりも内側の被覆部材非接合部２０ｂと袋本体１０との間に空気の層が形成され易くなるため、物品の熱が包装袋１００の外側により伝わりに難くなる。このため、包装袋１００における被覆部材２０を備える領域をより容易に手で把持することができる。 As a result, when an item is contained in the packaging bag 100 and a package (not shown) is formed, an air layer is more likely to form between the non-jointed portion 20b of the covering member 20, which is located inside the end of the covering member 20, and the bag body 10, making it more difficult for heat from the item to be transmitted to the outside of the packaging bag 100. This makes it easier to grip the area of the packaging bag 100 that includes the covering member 20 with your hand.
また、上記実施形態では、一対の対向シート部１１，１１のみから筒状部１０ａが構成されているが、これに限定されるものではなく、例えば、図５に示すように、一対の対向シート部１１，１１が筒状部１０ａの一部を構成するようにしてもよい。具体的には、一枚の樹脂シートの対向する端部同士が連結されて背貼り部１０ｄが形成された筒状部１０ａの場合、筒状部１０ａにおける背貼り部１０ｄ側の一部の領域と、該領域に対向する領域とによって一対の対向シート部１１，１１が構成されてもよい。なお、斯かる場合には、袋本体１０は、本体側方連結部Ｓ１を備えなくてもよい。 In the above embodiment, the tubular portion 10a is composed of only a pair of opposing sheet portions 11, 11, but this is not limited thereto. For example, as shown in FIG. 5, the pair of opposing sheet portions 11, 11 may constitute a part of the tubular portion 10a. Specifically, in the case of a tubular portion 10a in which the opposing ends of a single resin sheet are connected to form a back-attached portion 10d, the pair of opposing sheet portions 11, 11 may be constituted by a part of the region of the tubular portion 10a on the back-attached portion 10d side and a region opposite to said region. In such a case, the bag body 10 does not need to have a body side connecting portion S1.
また、上記実施形態では、一対の対向シート部１１，１１は、連結シート部１２によって、前記一方向の一端部同士が間接的に連結されているが、これに限定されるものではなく、例えば、該一端部同士が直接的に連結されてもよい。斯かる場合には、袋本体１０は、連結シート部１２を備えないように構成される。そして、前記一方向における一対の対向シート部１１，１１の一端部同士が直接的に連結されて閉塞部１０ｂが形成される。 In the above embodiment, the pair of opposing sheet portions 11, 11 have their one end portions in the one direction indirectly connected to each other by the connecting sheet portion 12, but this is not limited thereto, and for example, the one end portions may be directly connected to each other. In such a case, the bag body 10 is configured not to include the connecting sheet portion 12. Then, the one end portions of the pair of opposing sheet portions 11, 11 in the one direction are directly connected to each other to form the blocking portion 10b.
また、上記実施形態では、一対の対向シート部１１，１１と連結シート部１２とが一枚の樹脂シートを用いて形成されているが、これに限定されるものではなく、例えば、一方の対向シート部１１と他方の対向シート部１１と連結シート部１２とが別々の樹脂シートを用いて形成されてもよい。また、袋本体１０が連結シート部１２を備えない場合には、一対の対向シート部１１，１１のそれぞれが別々の樹脂シートを用いて形成されてもよい。 In addition, in the above embodiment, the pair of opposing sheet portions 11, 11 and the connecting sheet portion 12 are formed using a single resin sheet, but this is not limited thereto. For example, one opposing sheet portion 11, the other opposing sheet portion 11 and the connecting sheet portion 12 may be formed using separate resin sheets. In addition, when the bag body 10 does not have a connecting sheet portion 12, each of the pair of opposing sheet portions 11, 11 may be formed using separate resin sheets.
また、上記実施形態では、被覆部材２０は、被覆部材接合部２０ａと被覆部材非接合部２０ｂとを備えるように構成されているが、これに限定されるものではなく、例えば、被覆部材接合部２０ａのみを備えるように構成されてもよい。 In addition, in the above embodiment, the covering member 20 is configured to have a covering member joint portion 20a and a covering member non-joint portion 20b, but this is not limited thereto, and for example, the covering member 20 may be configured to have only the covering member joint portion 20a.
また、上記実施形態では、被覆部材接合部２０ａは、千鳥状に点在するように、または、帯状に形成されているが、これに限定されるものではなく、例えば、直線状に形成されてもよく、環状に（具体的には、被覆部材非接合部２０ｂを囲むように）形成されてもよい。 In addition, in the above embodiment, the covering member joints 20a are formed in a staggered pattern or in a band shape, but this is not limited thereto. For example, they may be formed in a straight line or in a ring shape (specifically, so as to surround the covering member non-joined parts 20b).
また、上記実施形態では、包装袋１００は、一対の対向シート部１１，１１それぞれの一部を一対の被覆部材２０のそれぞれが覆うように構成されているが、これに限定されるものではない。例えば、被覆部材２０を筒状に形成し、筒状の被覆部材２０の内側に袋本体１０（一対の対向シート部１１，１１）を配置することで、一対の対向シート部１１，１１における収容空間Ｒを挟んで対向する領域を袋本体１０の外側から環状の被覆部材２０で覆うようにしてもよい。 In addition, in the above embodiment, the packaging bag 100 is configured so that each of the pair of opposing sheet portions 11, 11 is partially covered by each of the pair of covering members 20, but this is not limited to this. For example, the covering member 20 may be formed in a cylindrical shape, and the bag body 10 (the pair of opposing sheet portions 11, 11) may be arranged inside the cylindrical covering member 20, so that the areas of the pair of opposing sheet portions 11, 11 that face each other across the storage space R are covered from the outside of the bag body 10 by the annular covering member 20.
また、上記実施形態では、連結シート部１２は、被覆部材２０で覆われていないが、これに限定されるものではなく、例えば、連結シート部１２の少なくとも一部が被覆部材２０で覆われるように構成されてもよい。 In addition, in the above embodiment, the connecting sheet portion 12 is not covered with the covering member 20, but this is not limited thereto, and for example, at least a portion of the connecting sheet portion 12 may be configured to be covered with the covering member 20.
また、上記実施形態では、袋本体１０は、一端側非被覆領域１１ｄと他端側非被覆領域１１ｅとを備えるように構成されているが、これに限定されるものではなく、例えば、他端側非被覆領域１１ｅのみを備えるように構成されてもよい。斯かる場合には、被覆部材２０は、前記一方向における一対の対向シート部１１，１１の一端部を覆うように配置される。 In the above embodiment, the bag body 10 is configured to have one end uncovered region 11d and the other end uncovered region 11e, but is not limited to this and may be configured to have only the other end uncovered region 11e. In such a case, the covering member 20 is arranged to cover one end of the pair of opposing sheet portions 11, 11 in the one direction.
１０…袋本体、１０ａ…筒状部、１０ｂ…閉塞部、１０ｃ…開口部、１０ｄ…背貼り部、１１…対向シート部、１１’…対向シート予定部、１１ａ…切欠部、１１ｂ…被覆領域、１１ｃ…非被覆領域、１１ｄ…一端側非被覆領域、１１ｅ…他端側非被覆領域、１２…連結シート部、１２’…被覆部材予定部、２０…被覆部材、２０’…被覆部材予定部、２０ａ…被覆部材接合部、２０ｂ…被覆部材非接合部、１００…包装袋、２００…包装袋原反、２０１…シート材、Ｒ…収容空間、Ｓ１…本体側方連結部 10...Bag body, 10a...Cylindrical part, 10b...Closure part, 10c...Opening, 10d...Back lining part, 11...Facing sheet part, 11'...Facing sheet planned part, 11a...Notch part, 11b...Covered area, 11c...Non-covered area, 11d...One end side non-covered area, 11e...Other end side non-covered area, 12...Connecting sheet part, 12'...Planned covering member part, 20...Covering member, 20'...Planned covering member part, 20a...Covering member joint part, 20b...Covering member non-joint part, 100...Packaging bag, 200...Packaging bag roll, 201...Sheet material, R...Storage space, S1...Main body side connecting part
Claims (1)
該袋本体は、対向するように配置された一対の対向シート部を備えると共に、該一対の対向シート部の間に収容空間が形成され、一方向における一対の対向シート部の一端部側で収容空間が閉塞されている包装袋であって、
一対の対向シート部における収容空間を挟んで対向する領域を袋本体の外側から覆うシート状の被覆部材を更に備えており、
該被覆部材は、紙および不織布の少なくとも一方を用いて形成されると共に、一方向における一対の対向シート部の一端部側に配置されており、
被覆部材は、前記一方向に交差する他方向における一対の対向シート部の両端部間に亘って帯状に形成され、
該被覆部材の両端部は、該対向シートの両端部と重なっており、
一対の対向シート部は、被覆部材で覆われた被覆領域と、被覆部材で覆われていない非被覆領域とを備える包装袋を製造する包装袋の製造方法であって、
一対の対向シート部となる一対の対向シート予定部と、該一対の対向シート予定部にそれぞれ重なるように配置された一対の被覆部材予定部とが、長手方向に沿って帯状に延びる包装袋原反を用い、
該包装袋原反を短手方向に沿って切断する工程と、
前記一対の対向シート予定部及び前記一対の被覆部材予定部がそれぞれ対向するように折り曲げた状態で、一対の対向シート部の両端部が連結された本体側方連結部を形成する工程と、を備える包装袋の製造方法。 The bag body is formed into a bag shape using a resin sheet and has a storage space capable of storing an item to be heated.
The bag body is a packaging bag comprising a pair of opposing sheet portions arranged to face each other, a storage space is formed between the pair of opposing sheet portions, and the storage space is closed at one end side of the pair of opposing sheet portions in one direction,
The bag further includes a sheet-like covering member that covers, from the outside of the bag body, areas of the pair of opposing sheet portions that face each other across the storage space,
the covering member is formed using at least one of paper and nonwoven fabric, and is disposed on one end side of the pair of opposing sheet portions in one direction;
The covering member is formed in a band shape across both ends of the pair of opposing sheet portions in another direction intersecting the one direction,
Both ends of the covering member overlap both ends of the opposing sheet,
A method for producing a packaging bag, the method comprising the steps of: producing a packaging bag having a pair of opposed sheet portions each having a covered region covered with a covering member and a non-covered region not covered with the covering member, the method comprising the steps of:
A packaging bag roll is used, in which a pair of opposing sheet portions to be a pair of opposing sheet portions and a pair of covering member portions arranged so as to overlap the pair of opposing sheet portions, respectively, extend in a belt shape along the longitudinal direction,
A step of cutting the packaging bag roll along a short side direction;
and forming a main body side connection portion in which both ends of the pair of opposing sheet portions are connected while folding the pair of opposing sheet portions and the pair of covering member portions so that they face each other.
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| US20040118735A1 (en) | 2002-12-19 | 2004-06-24 | Mize James A. | Patch bag having patch covering seal |
| US20070151888A1 (en) | 2005-11-24 | 2007-07-05 | Daniel Bossel | Packaging unit comprising pouch and outer packaging |
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| JPS615768U (en) * | 1984-06-18 | 1986-01-14 | 日本流通資材株式会社 | food packaging containers |
| JP4205201B2 (en) * | 1998-04-10 | 2009-01-07 | 旭化成せんい株式会社 | Food packaging bag for microwave oven |
| US6683289B2 (en) | 2001-10-29 | 2004-01-27 | Mars Incorporated | Hand-held food package |
| US20060096978A1 (en) | 2004-11-10 | 2006-05-11 | Graphic Packaging International, Inc | Insulated packages for microwaveable foods |
| EP1714892A3 (en) | 2005-04-20 | 2007-02-07 | Alcan Technology & Management Ltd. | Packaging bag with overwrap |
| JP2016037291A (en) | 2014-08-05 | 2016-03-22 | 凸版印刷株式会社 | Pouch |
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| US20040118735A1 (en) | 2002-12-19 | 2004-06-24 | Mize James A. | Patch bag having patch covering seal |
| US20070151888A1 (en) | 2005-11-24 | 2007-07-05 | Daniel Bossel | Packaging unit comprising pouch and outer packaging |
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