JP7442298B2 - packaging bag - Google Patents

Description

The present invention relates to a packaging bag for storing heated articles.

Conventionally, packaging bags formed using resin sheets have been known. The packaging bag includes a bag body forming a storage space for storing articles. The bag body includes a pair of facing sheet parts arranged to face each other, and a storage space is formed between the pair of facing sheet parts (see Patent Document 1).

By the way, the above-mentioned items stored in the packaging bag may be heated before being stored in the packaging bag, or may be heated in a microwave oven, a hot water bath, etc. while stored in the packaging bag. There is. For example, if the item stored in the packaging bag is a processed rice food (e.g. fried rice, rice balls, etc.), when eating the processed rice food, the processed rice food stored in the packaging bag may be heated in a microwave oven, etc. May be heated.

Japanese Patent Application Publication No. 2010-241439

However, when holding a package in which an item is housed in a packaging bag, if the item is heated, the heat of the item will be transmitted to the hand through the packaging bag, causing the package to be held in the hand. It may become difficult to do so.

SUMMARY OF THE INVENTION Therefore, the present invention provides a packaging bag that allows the user to easily grasp the package by hand even when the article is heated. The challenge is to provide the following.

The packaging bag according to the present invention is formed into a bag shape using a resin sheet, and includes a bag body forming a storage space capable of accommodating an article to be heated. A packaging bag comprising a pair of opposing sheet sections arranged, a storage space formed between the pair of opposing sheet sections, and the storage space being closed at one end side of the pair of opposing sheet sections in one direction. The bag further includes a sheet-like covering member that covers areas facing each other across the accommodation space in the pair of opposing sheet parts from the outside of the bag body, and the covering member is formed using at least one of paper and nonwoven fabric. and is disposed on one end side of a pair of opposing sheet parts in one direction, and the pair of opposing sheet parts has a covered area covered with the covering member and an uncovered area not covered with the covering member. Equipped with

According to such a configuration, a sheet-like covering member is provided that covers areas of the pair of opposing sheet portions of the bag body that face each other across the accommodation space from the outside of the bag body. Moreover, the covering member is formed using at least one of paper and nonwoven fabric. Further, the covering member is arranged on one end side of the pair of opposing sheet parts in one direction. The pair of opposing sheet parts includes a covered area covered with the covering member and an uncovered area not covered with the covering member. Further, the covering region is formed near one end of the pair of opposing sheet portions in one direction.

As a result, in a state where the article is housed in the packaging bag and a package is formed, the heat of the article housed in the storage space is difficult to be transmitted to the outside of the packaging bag at the location where the covering member is provided in the packaging bag. Therefore, by grasping the portion of the packaging bag with the covering member with the hand, the package can be easily grasped with the hand without being affected by the heat of the article.
In addition, since the heat of the product is dissipated from the non-covered area to the outside of the packaging bag, the product can be packaged more quickly than when the entire pair of opposing sheet parts are covered with the covering member (in the case where the non-covered area is not provided). can be cooled down.

The bag body includes a connecting sheet portion that connects one end portions of the pair of opposing sheet portions in the one direction, and the non-covered area is closer to the one end portion of the pair of opposing sheet portions than the covered area in the one direction. It is preferable that the coating be formed in a region including the one end and a region closer to the other end of the pair of opposing sheet parts than the covered region in the one direction.

According to such a configuration, the bag main body includes a connecting sheet portion that connects one end portions of the pair of opposing sheet portions in the one direction. Further, the non-covered area includes an area closer to one end of the pair of opposing sheet parts than the covered area in the one direction and including the one end, and an area closer to the one end of the pair of opposing sheet parts than the covered area in the one direction. It is formed in the area on the other end side.

Here, in a state where the article is housed in the packaging bag and a package is formed, if the article housed in the packaging bag is in the form of granules or powder, it is connected to one end of the pair of opposing sheet parts in the one direction. Articles may accumulate near the connection position with the seat portion. However, as described above, by forming the non-covered region (hereinafter also referred to as the one-end non-covered region) in the region including one end of the pair of facing sheet parts in the one direction, the packaging bag has the covering member The uncoated region on the one end side is more easily deformed than the region provided with. As a result, even if articles accumulate near the connection position between one end of the pair of opposing sheet parts and the connecting sheet part in the one direction, the accumulated articles can be deformed by deforming the non-covered area on the one end side. can be easily taken out.

It is preferable that the covering member is formed in a band shape extending between both ends of the pair of opposing sheet parts in the other direction intersecting the one direction.

According to this configuration, the covering member is formed in a band shape between both ends of the pair of opposing sheet portions in the other direction intersecting the one direction. Therefore, in a state where the article is housed in the packaging bag and a package is formed, the region of the packaging bag that includes the covering member can be more easily grasped by hand.

The covering member includes a covering member joint part that is joined to the bag main body, and a covering member non-joining part that is not joined to the bag main body, and the covering member non-joining part is located inside the end of the covering member. It is preferable that it is formed continuously so as to reach the end of the covering member from the region.

According to such a configuration, the covering member includes a covering member joint portion that is joined to the bag main body, and a covering member non-joining portion that is not joined to the bag main body. Further, the covering member non-joining portion is continuously formed from a region inside the end of the covering member to reach the end of the covering member.

Therefore, when an article is housed in a packaging bag and a package is formed, the heat between the non-joined portion of the covering member and the bag body is discharged from between the end of the covering member and the bag body. , the region of the packaging bag provided with the covering member can be more easily grasped by hand.

The covering member includes a covering member joint part joined to the bag body and a covering member non-joining part not joined to the bag main body, and the covering member non-joining part is located at both ends of the covering member 20 in the one direction. and a region inside the end of the covering member, between the covering member non-joining part inside the end of the covering member and the covering member non-joining part at the end of the covering member. It is preferable that the covering member joint portion is formed so that the covering member non-joining portion inside the end portion of the covering member does not reach the covering member non-joining portion at the end portion of the covering member.

According to such a configuration, the covering member includes a covering member joint portion that is joined to the bag main body, and a covering member non-joining portion that is not joined to the bag main body. Further, the covering member non-joining portions are formed at both ends of the covering member 20 in the one direction and in a region inside the end of the covering member. In addition, by forming the covering member non-joining part between the covering member non-joining part inside the end of the covering member and the covering member non-joining part at the end of the covering member, The inner covering member non-joining portion is configured so as not to reach the covering member non-joining portion at the end of the covering member.

As a result, when an article is housed in a packaging bag and a package is formed, an air layer is likely to be formed between the unjoined part of the covering member inside the end of the covering member and the bag body. , it becomes more difficult for the heat of the article to be transferred to the outside of the packaging bag. Therefore, the region of the packaging bag that includes the covering member can be more easily grasped by hand.

As described above, according to the present invention, when a package formed by storing an article in a packaging bag is grasped by hand, the package can be easily grasped by hand even when the article is in a heated state. be able to.

FIG. 1 is a plan view of a packaging bag according to an embodiment of the present invention, viewed from one opposing sheet portion side. FIG. 2 is a sectional view taken along line II in FIG. 1. The top view which showed the packaging bag original fabric used when forming the packaging bag based on the same embodiment. FIG. 7 is a plan view of a packaging bag according to another embodiment of the present invention, viewed from one facing sheet portion side. FIG. 7 is an end view of a cross section of a cylindrical portion of a packaging bag according to still another embodiment of the present invention, which intersects with the axis.

An embodiment of the packaging bag according to the present invention will be described below based on FIGS. 1 to 3. In the following drawings, the same or corresponding parts are given the same reference numerals and the description thereof will not be repeated. Furthermore, in the following description, one direction is the x-axis direction in each figure, and the other direction is the y-axis direction in each figure. Further, the direction in which the pair of facing sheet parts 11, 11 oppose is the z-axis direction.

As shown in FIGS. 1 and 2, the packaging bag 100 according to the present embodiment includes a bag body 10 formed into a bag shape using a sheet material, and a part of the bag body 10 that is covered from the outside of the bag body 10. A sheet-like covering member 20 is provided.

The bag body 10 is formed using a resin sheet. The resin sheet is not particularly limited, and includes, for example, non-axially oriented polypropylene (CPP) film, biaxially oriented polypropylene (OPP) film, polyethylene (PE) film, biaxially oriented nylon (ONY) film, and A polyethylene terephthalate (PET) film or the like can be used. When the covering member 20 and the bag body 10 are heat-sealed as described later, it is preferable to use CPP or OPP as the resin sheet.

Moreover, the bag body 10 forms a storage space R that can store articles.
The bag body 10 also includes a pair of facing sheet parts 11, 11 that are arranged to face each other with the accommodation space R in between, and a connecting sheet that connects one end of the pair of facing sheet parts 11, 11 in one direction. 12. Specifically, the bag body 10 includes a cylindrical portion 10a that is formed into a cylindrical shape extending in one direction and has a storage space R formed therein, and a cylindrical portion 10a that closes one end of the cylindrical portion 10a in the one direction. 10b, and an opening 10c that is formed at the other end of the cylindrical portion 10a in the one direction and opens the accommodation space R to the outside.

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 the other direction intersecting the one direction and both ends of the other opposing sheet portion 11 in the other direction. It is formed into a shape. The closing portion 10b is formed by the connecting sheet portion 12.

Moreover, the pair of opposing sheet parts 11, 11 and the connecting sheet part 12 are formed using one resin sheet. Specifically, one resin sheet includes a region that becomes a pair of opposing sheet portions 11, 11, and a region that becomes a connecting sheet portion 12 between the regions. Then, the resin sheet is bent at the boundary between the area that will become the pair of opposing sheet parts 11, 11 and the area that will become the connecting sheet part 12, and the areas that will become the pair of opposing sheet parts 11, 11 are arranged so as to face each other. At the same time, the region that will become the connecting sheet portion 12 is folded between the regions that will become the pair of opposing sheet portions 11, 11. As a result, a pair of opposing sheet portions 11, 11 and a connecting sheet portion 12 are formed.

The bag main body 10 also includes a pair of main body side connecting parts formed by connecting both ends of one facing sheet part 11 in the other direction and both ends of the other facing sheet part 11 in the other direction. Equipped with S1. The pair of main body side connecting portions S1 are formed continuously (specifically, in a band shape) along the one direction. Each main body side connecting portion S1 includes a region where an end of one facing sheet portion 11 and an end of the other facing sheet portion 11 are directly connected, and an end of the connecting sheet portion 12 in the other direction. and a region indirectly connected via a portion.

Moreover, the bag main body 10 includes a notch 11a formed by cutting out at least one of both ends in the other direction (specifically, the pair of main body side connecting parts S1). The notch portions 11a are formed in each of the pair of main body side connecting portions S1 (specifically, at opposing positions in the other direction).

The pair of opposing sheet parts 11, 11 include a covered area 11b covered with the covering member 20 and an uncovered area 11c not covered with the covering member 20.

The covering region 11b is formed near one end of the pair of opposing sheet portions 11, 11 in the one direction. Further, the covering region 11b is formed in at least a portion (preferably a central portion) 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 over the entire area between both ends of the pair of opposing sheet portions 11, 11 in the other direction.

The non-covered region 11c is a region closer to one end of the pair of opposing sheet parts 11, 11 than the covered region 11b in the one direction, and includes the one end (hereinafter also referred to as one-end non-covered region 11d). and a region (hereinafter also referred to as the other end non-covered region 11e) on the other end side (that is, the opening 10c side) of the pair of opposing sheet parts 11, 11 than the covered region 11b in the one direction. It is formed. That is, in the one direction, the covered area 11b is formed between the one end side non-covered area 11d and the other end side non-covered area 11e.

The one end non-covered region 11d is formed in a band shape extending in the other direction. The width of the one-end non-covered region 11d formed in a band shape is not particularly limited, and may be, for example, 3 mm to 5 mm.

The other end non-covered area 11e is formed in the entire area closer to the other end of the pair of opposing sheet parts 11, 11 than the covered area 11b in the one direction. Further, a cutout portion 11a is formed in the other end non-covered region 11e.

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 parts 11, 11) are heat-sealed as described later, the sheet material forming the covering member 20 may be paper or nonwoven fabric. Preference is given to those comprising a layer and a layer of thermoplastic resin.
Examples of the paper include Japanese paper, rayon, Unryu, pure white paper, and the like. Further, the paper may be oil resistant, water resistant, or heat sealable. Further, the paper may have a basis weight of 9 g/m ² or more and 100 g/m ² or less.
Examples of the nonwoven fabric include PP nonwoven fabric, PE nonwoven fabric, and the like. Further, 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, and is preferably, for example, 30 μm or more.

The covering member 20 is arranged so as to cover regions of the pair of facing sheet parts 11, 11 that face each other across the accommodation space R from the outside of the bag body 10. Specifically, the packaging bag 100 includes a pair of covering members 20 , 20 , and one covering member 20 covers one of the regions of the pair of opposing sheet parts 11 , 11 that face each other across the accommodation space R. Then, the other region of the pair of facing sheet parts 11, 11 facing each other with the accommodation space R in between is covered with the other covering member 20.

Further, the covering member 20 is arranged on one end side of the pair of opposing sheet parts 11, 11 in the one direction (specifically, on the one end side rather than the center part).
Furthermore, the covering member 20 is arranged closer to the other end than one end of the pair of opposing sheet parts 11, 11 in the one direction. Specifically, the covering member 20 is arranged at a distance of 3 mm to 5 mm from one end edge of the pair of opposing sheet parts 11, 11 in the one direction toward the other end side.

Further, the covering member 20 is formed to cover at least a portion (preferably a central 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 area between both ends of the pair of facing sheet parts 11, 11 in the other direction.

The length between both ends of the covering member 20 in the one direction (that is, 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 is the length between both ends of the connecting sheet part 12 in the one direction (between both ends extending in the other direction) when the connecting sheet part 12 is completely folded. It may be 1.5 times or more, it may be twice or more, it may be 10 times or less, or it may be 3 times or less. Further, the length between both ends of the covering member 20 in one direction may be 50 mm or more, 55 mm or more, 60 mm or more, 100 mm or less, or 90 mm or more. The following may be sufficient.

Moreover, the covering member 20 is arranged so that both ends in the other direction overlap the pair of main body side connecting parts S1, S1. Both end portions of the covering member 20 in the other direction are connected to a pair of main body side connecting portions S1, S1 (specifically, they are connected in a band shape along the one direction).

The covering member 20 includes a covering member joining portion 20a joined to the bag main body 10 (specifically, the pair of opposing sheet portions 11, 11), and a covering member joint portion 20a joined to the bag main body 10 (specifically, the pair of opposing sheet portions 11, 11). 11) and a covering member non-joining portion 20b that is not joined. Specifically, the covering member 20 includes a covering member joint portion 20a and a covering member non-joining portion 20b in a region between both ends in the other direction.

The covering member joining portions 20a are formed in a staggered manner in a region between both ends of the covering member 20 in the other direction.
Further, the covering member non-joining portion 20b is continuously formed from a region inside the end of the covering member 20 to reach the end of the covering member 20. Specifically, the covering member non-joining portion 20b includes a region inside the end of the covering member 20, and both ends of the covering member 20 in the one direction (more specifically, both ends of a band-like shape extending in the other direction). ) is formed. 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 in a row. As a result, the covering member non-joining portion 20b is continuously formed from a region inside the end of the covering member 20 to both ends of the covering member 20.

As described above, by continuously forming the covering member non-joining portions 20b from the region inside the end of the covering member 20 to both ends of the covering member 20, the packaging bag original fabric 200 described later is When the sheet is wound into a roll, air is discharged from between the pair of opposing sheet portions 11', 11' and the covering member portion 20'. Therefore, the packaging bag material 200 can be stably wound into a roll.

The method of joining the covering member 20 and the bag main body 10 (specifically, the pair of opposing sheet parts 11, 11) is not particularly limited, and for example, the method of joining the covering member 20 and the bag main body 10 (specifically, This may be a method of heat-sealing the pair of facing sheet parts 11, 11), or a method of using an adhesive or a pressure-sensitive adhesive sheet.

The packaging bag 100 configured as described above can be formed from a packaging bag original fabric 200 shown in FIG. 3.
The original packaging bag 200 includes a pair of opposing sheet portions 11', 11', which will become a pair of opposing sheet sections 11, 11, at both ends in one direction. Moreover, the packaging bag original fabric 200 includes a connecting sheet planned portion 12', which becomes the connected sheet portion 12, between the pair of opposing sheet planned portions 11', 11' in the one direction. The packaging bag original 200 also includes a planned covering member portion 20' that will become the covering member 20 and is arranged so as to overlap each of the pair of opposing sheet planned portions 11', 11'. . The packaging bag original fabric 200 (a pair of opposing sheet planned parts 11', 11', a connecting sheet planned part 12', and a covering member planned part 20') is formed into a long shape in the other direction.

Then, a sheet material 201 of a predetermined size is cut out from the original packaging bag 200, and the sheet material 201 is folded at the boundary between the pair of opposing sheet sections 11', 11' and the connecting sheet section 12' to form a pair of opposing sheets. The sheet planning parts 11', 11' are made to face each other, and a connecting sheet planning part 12' is woven between the pair of opposing sheet planning parts 11', 11'. As a result, a pair of opposing sheet portions 11, 11 and a connecting sheet portion 12 are formed. Then, the packaging bag 100 is formed by connecting both ends of the one opposing sheet section 11 in the other direction and both ends of the other opposing sheet section 11 in the other direction to form the main body side connecting section S1. Form.

The heated article is housed in the packaging bag 100 configured as described above. The articles to be housed in the packaging bag 100 are not particularly limited, and include, for example, granular, powder, or liquid articles. In addition, the articles stored in the packaging bag 100 may be, for example, foods such as cooked rice processed foods (specifically, fried rice, rice balls, etc.), sandwiches, curry, etc., or may be articles other than foods. good.
Moreover, the article accommodated in the packaging bag 100 may be heated before being accommodated in the packaging bag 100, or may be heated after being accommodated in the packaging bag 100. The method of heating the article is not particularly limited, and examples thereof include a microwave oven, an oven, and a hot water bath.

In the packaging bag 100, the storage space R is closed when the article is stored. The method of closing the housing space R is not particularly limited, and for example, the housing space R may be closed by sealing the opening 10c of the cylindrical portion 10a. Alternatively, the storage space R can be closed off by twisting the cylindrical part 10a (specifically, the pair of opposing sheet parts 11, 11) at a position between the article stored in the packaging bag 100 and the opening 10c. You may.

As described above, according to the packaging bag 100 according to the present embodiment, when the package containing the article accommodated in the packaging bag 100 is held by hand, even if the article is in a heated state, the package can be easily held by hand.

That is, the bag body 10 is provided with a sheet-like covering member 20 that covers areas facing each other across the storage space R in the pair of opposing sheet portions 11, 11 of the bag body 10 from the outside of the bag body 10. Moreover, the covering member 20 is formed using at least one of paper and nonwoven fabric. Further, the covering member 20 is arranged on one end side of the pair of opposing sheet parts 11, 11 in one direction. The pair of opposing sheet portions 11, 11 includes a covered region 11b covered with the covering member 20 and an uncovered region 11c not covered with the covering member 20. Further, the covering region 11b is formed near one end of the pair of opposing sheet portions 11, 11 in one direction.

As a result, in a state where an article is housed in the packaging bag 100 and a package (not shown) is formed, the heat of the article housed in the housing space R is transferred to the portion of the packaging bag 100 provided with the covering member 20. It becomes difficult for the light to be transmitted to the outside of the bag 100. Therefore, by grasping the portion of the packaging bag 100 where the covering member 20 is provided by hand, the package can be easily grasped without being affected by the heat of the article. Moreover, since the heat of the article is dissipated to the outside of the packaging bag 100 from the non-covered area 11c, when the pair of opposing sheet parts 11, 11 are entirely covered with the covering member 20 (without the non-covered area 11c) Items can be cooled down more quickly than in other cases.

The bag body 10 also includes a connecting sheet portion 12 that connects one end portions of the pair of opposing sheet portions 11, 11 in the one direction. The non-covered region 11c is a region closer to one end of the pair of opposing sheet parts 11, 11 than the covered region 11b in the one direction and includes the one end, and a region closer to the one end of the covered region 11b in the one direction. is also formed in a region on the other end side of the pair of opposing sheet portions 11, 11.

Here, in a state where an article is housed in the packaging bag 100 to form a package (not shown), if the article housed in the packaging bag 100 is granular or powdery, a pair of opposing Articles may accumulate near the connection position between one end of the sheet parts 11, 11 and the connection sheet part 12. However, as described above, the non-covered region 11c (hereinafter also referred to as the one-end non-covered region 11d) is formed in the region including one end of the pair of opposing sheet portions 11, 11 in the one direction, so that packaging The bag 100 deforms more easily in the non-covered region 11d at one end than in the region provided with the covering member 20. Thereby, even if articles accumulate near the connection position between one end of the pair of opposing sheet parts 11, 11 and the connection sheet part 12 in the one direction, the one end side non-covered region 11d is deformed. This allows the accumulated items to be easily taken out.

Further, the covering member 20 is formed in a band shape extending between both ends of the pair of opposing sheet portions 11, 11 in the other direction intersecting the one direction. Therefore, in a state where the article is housed in the packaging bag 100 and a package (not shown) is formed, the region of the packaging bag 100 provided with the covering member 20 can be more easily grasped by hand.

Further, the covering member 20 includes a covering member joint portion 20a joined to the bag main body 10, and a covering member non-joining portion 20b not joined to the bag main body 10. Further, the covering member non-joining portion 20b is continuously formed from a region inside the end of the covering member 20 to reach the end of the covering member 20.

Therefore, when an article is housed in the packaging bag 100 and a package (not shown) is formed, heat between the covering member non-joined portion 20b and the bag body 10 is transferred to the end of the covering member 20 and the bag body 10. Since it is discharged from between the packaging bag 100 and the main body 10, the region of the packaging bag 100 where the covering member 20 is provided can be more easily grasped by hand.

Note that the packaging bag according to the present invention is not limited to the above embodiments, and various changes can be made without departing from the gist of the present invention. Furthermore, the configurations, methods, etc. of the multiple embodiments described above may be arbitrarily adopted and combined (the configurations, methods, etc. of one embodiment may be applied to the configurations, methods, etc. of other embodiments). Furthermore, it is of course possible to arbitrarily select configurations, methods, etc. according to the following various modification examples and adopt them to the configurations, methods, etc. according to the above-described embodiments.

For example, in the above embodiment, the covering member non-joining portion 20b is formed continuously from a region inside the end of the covering member 20 to reach the end of the covering member 20, but the present invention is not limited to this. It's not a thing.
For example, as shown in FIG. 4, there is a coating between a covering member non-joining part 20b formed inside the end of the covering member 20 and a covering member non-joining part 20b formed at the end of the covering member 20. Even if the member joint portion 20a is formed so that the covering member non-joining portion 20b inside 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. good. Specifically, the covering member joining portion 20a is formed in a band shape over the entire area between both ends of the pair of opposing sheet portions 11, 11 (specifically, the cylindrical portion 10a) in the other direction, and A plurality of covering member joining parts 20a are formed at intervals in the one direction. Covering member non-joining portions 20b are formed in the region between both ends of the covering member 20 in the one direction and the adjacent covering member joining portions 20a (that is, the region inside the end portions of the covering member 20). be done. As a result, the covering member non-joining portions 20b formed at both ends of the covering member 20 in the one direction and the adjacent covering member joining portions 20a (that is, inside the end portions of the covering member 20) are formed. The covering member joining part 20a is located between the covering member non-joining part 20b. Therefore, the covering member non-joining portion 20b located inside the end of the covering member 20 is configured so as not to reach the covering member non-joining portion 20b at the end of the covering member 20 due to the covering member joining portion 20a.

As a result, when an article is housed in the packaging bag 100 and a package (not shown) is formed, there is a gap between the covering member non-joined part 20b inside the end of the covering member 20 and the bag main body 10. Since a layer of air is more likely to be formed, it becomes more difficult for the heat of the article to be transmitted to the outside of the packaging bag 100. Therefore, the region of the packaging bag 100 that includes the covering member 20 can be more easily grasped by hand.

Further, in the above embodiment, the cylindrical portion 10a is configured only from the pair of opposing sheet portions 11, 11, but it is not limited to this. For example, as shown in FIG. The parts 11, 11 may constitute part of the cylindrical part 10a. Specifically, in the case of the cylindrical part 10a in which the back sticking part 10d is formed by connecting the opposing ends of one resin sheet, a part of the area on the back sticking part 10d side of the cylindrical part 10a A pair of opposing sheet parts 11, 11 may be constituted by the area and the area facing the area. In addition, in such a case, the bag main body 10 does not need to include the main body side connecting portion S1.

Further, in the above embodiment, the pair of opposing sheet parts 11, 11 are indirectly connected to each other at one end in the one direction by the connecting sheet part 12, but the invention is not limited to this, for example. , the one end portions may be directly connected to each other. In such a case, the bag main body 10 is configured not to include the connecting sheet portion 12. Then, 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 closing portion 10b.

Further, in the above embodiment, the pair of opposing sheet parts 11, 11 and the connecting sheet part 12 are formed using one resin sheet, but the invention is not limited to this. The sheet portion 11, the other opposing sheet portion 11, and the connecting sheet portion 12 may be formed using separate resin sheets. Moreover, when the bag main body 10 does not include the connecting sheet part 12, each of the pair of opposing sheet parts 11, 11 may be formed using separate resin sheets.

Further, in the above embodiment, the covering member 20 is configured to include the covering member joint portion 20a and the covering member non-joining portion 20b, but is not limited to this, and for example, the covering member joining portion It may be configured to include only 20a.

Further, in the embodiment described above, the covering member joining portions 20a are formed in a staggered manner or in a band shape, but are not limited to this. Alternatively, it may be formed in an annular shape (specifically, so as to surround the covering member non-joining portion 20b).

Further, in the above embodiment, the packaging bag 100 is configured such that each of the pair of covering members 20 covers a part of each of the pair of opposing sheet parts 11, 11, but the present invention is not limited to this. . For example, by forming the covering member 20 in a cylindrical shape and arranging the bag body 10 (a pair of opposing sheet parts 11, 11) inside the cylindrical covering member 20, storage in the pair of opposing sheet parts 11, 11 is possible. Areas facing each other with the space R in between may be covered with an annular covering member 20 from the outside of the bag body 10.

Further, in the above embodiment, the connecting sheet portion 12 is not covered with the covering member 20, but the invention is not limited to this. For example, at least a portion of the connecting sheet portion 12 may be covered with the covering member 20. may be configured.

Further, in the above embodiment, the bag body 10 is configured to include the one end side non-covered area 11d and the other end side non-covered area 11e, but the bag body 10 is not limited to this. It may be configured to include only the side uncovered region 11e. In such a case, the covering member 20 is arranged so as to cover one end of the pair of opposing sheet parts 11, 11 in the one direction.

DESCRIPTION OF SYMBOLS 10...Bag body, 10a...Cylindrical part, 10b...Closing part, 10c...Opening part, 10d...Back sticking part, 11... Opposing sheet part, 11'... Opposing sheet planned part, 11a... Notch part, 11b... Covering area , 11c...uncovered area, 11d...one end side non-covered area, 11e...other end side non-covered area, 12...connected sheet part, 12'...covered member planned part, 20...covered member, 20'...covered member planned part , 20a...Covering member joint part, 20b...Covering member non-joint part, 100...Packaging bag, 200...Packaging bag original fabric, 201...Sheet material, R...Accommodation space, S1...Body side connection part

Claims (2)

It is formed into a bag shape using a resin sheet, and includes a bag body that forms a storage space that can accommodate the article to be heated.
The bag body includes a pair of facing sheet parts arranged to face each other, and a housing space is formed between the pair of facing sheet parts, and the bag body is stored at one end side of the pair of facing sheet parts in one direction. A packaging bag with a closed space,
The bag further includes a sheet-like covering member that covers areas facing each other across the accommodation space in the pair of facing sheet parts from the outside of the bag body,
The covering member is formed using at least one of paper and nonwoven fabric, and is arranged closer to one end than the center of the pair of opposing sheet parts in one direction,
The covering member is formed in a band shape between both ends of the pair of opposing sheet parts in the other direction intersecting the one direction,
Both ends of the covering member overlap with both ends of the facing sheet,
The pair of opposing sheet portions include a covered area covered with a covering member and an uncovered area not covered with a covering member ,
The covering member includes a covering member joining part joined to the bag main body and a covering member non-joining part not joined to the bag main body,
The covering member non-joining portion is formed at both ends of the covering member in the one direction and in a region inside the end of the covering member,
By forming a covering member joint part between the covering member non-joining part inside the end of the covering member and the covering member non-joining part at the end of the covering member, the covering member non-joining part inside the end of the covering member A packaging bag configured such that a non-bonded portion of the covering member does not reach a non-bonded portion of the covering member at an end of the covering member . The bag main body includes a connecting sheet portion that connects one ends of the pair of opposing sheet portions in the one direction,
The non-covered area is an area closer to one end of the pair of opposing sheet parts than the covered area in the one direction and includes the one end, and an area other than the covered area of the pair of opposing sheets in the one direction. The packaging bag according to claim 1, wherein the packaging bag is formed in an end region.