JP2017137111A - Packaging bag - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packaging bag capable of preventing burn injury caused by the heat of gas discharged from a storage space storing an article when holding the bag with hands.SOLUTION: A packaging bag comprises: a body part 2 formed into a bag-like shape with use of seal materials; and an inside arrangement part 3 having a pair of inside opposing parts arranged so as to oppose to each other inside the body part. The body part comprises: a peel seal part 2d where the inside surfaces of the seal materials constituting the body part are sealed and formed in a sealable manner; a storage part 2c formed so as to come into contact with the peel seal part, and capable of storing an article; and a body opening 2e capable of discharging gas inside the storage part. The inside arrangement part comprises: a gas inflow part 3e allowing the gas inside the storage part to flow in between the pair of the inside opposing parts; and a gas discharge part 3f allowing the gas between the pair of the inside opposing parts to be discharged to the outside. The peel seal part is formed between the gas inflow part and the storage part so that the gas inflow part and the storage part cannot come into contact with each other, and the body opening is configured to allow the gas discharged from the gas discharge part to the outside of the body part.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a packaging bag heated in a state where an article is accommodated.

  In recent years, packaging bags that contain retort foods, frozen foods, and the like as articles have been widely used. Such a packaging bag is heated using a microwave oven or the like in a state where the article is accommodated, so that the article can be cooked or heated so that the article can be eaten in a good state. .

  By the way, such a packaging bag is heated, so that the air in the packaging bag expands or the water contained in the article evaporates, so that the internal pressure of the packaging bag increases. Such an increase in internal pressure is a factor that causes the packaging bag to burst. Therefore, in order to discharge the gas (air, water vapor, etc.) in the packaging bag to the outside of the packaging bag when the packaging bag is heated, the sheet material constituting the packaging bag is provided with a through-hole, and the periphery of the through-hole There has been proposed a packaging bag provided with a peel seal portion that seals the inner surfaces of the packaging bag so as to be peelable (see Patent Document 1).

  According to such a packaging bag, when the internal pressure of the packaging bag increases with heating, the peel seal part around the through hole is peeled off, and the space accommodating the article and the through hole communicate with each other. Thereby, since the gas of accommodation space is discharged | emitted to the outer side of a packaging bag from a through-hole, it is possible to prevent that a packaging bag bursts unintentionally by the raise of internal pressure.

JP-A-2015-113131

  However, since a through-hole is formed on the surface of the packaging bag as described above, the gas discharged from the accommodation space is easily touched when the heated packaging bag is gripped by hand. There is a risk of burns.

  Then, this invention makes it a subject to provide the packaging bag which can prevent the burn by the heat | fever of the gas discharged | emitted from accommodation space, when it grips with a hand.

  The packaging bag according to the present invention includes a main body portion formed into a bag shape using a sheet material, and an inner arrangement portion having a pair of inner facing portions arranged to face each other inside the main body portion, The main body includes a peel seal portion formed by releasably sealing the inner surfaces of the sheet material constituting the main body portion, a housing portion formed so as to be in contact with the peel seal portion and capable of accommodating an article, A main body opening capable of discharging the gas in the housing portion, and the inner arrangement portion has a gas inflow portion capable of flowing the gas in the housing portion between the pair of inner facing portions, and the gas between the pair of inner facing portions. A gas discharge portion that can be discharged to the outside, and the peel seal portion is formed between the gas inflow portion and the accommodating portion so that the gas inflow portion and the accommodating portion do not contact each other, and the main body opening portion is a gas It is configured to be able to discharge the gas discharged from the discharge unit to the outside of the main unit. It is characterized in.

  According to such a configuration, the inner arrangement portion includes a gas inflow portion capable of flowing the gas in the housing portion between the pair of inner facing portions, and a gas discharge portion capable of discharging the gas between the pair of inner facing portions to the outside. The peel seal portion is formed between the gas inflow portion and the accommodating portion so that the gas inflow portion and the accommodating portion do not contact each other, and the main body opening portion allows the gas discharged from the gas discharge portion to Since it is configured to be able to be discharged to the outside of the main body, the gas (for example, air or water vapor) in the housing portion is discharged to the outside of the main body through a pair of inner facing portions. Thereby, it can prevent that a packaging bag is damaged by the raise of the internal pressure of a accommodating part. In addition, since the gas in the housing portion flows between the pair of inner facing portions, it is possible to prevent burns due to the heat of the gas when the portion including the inner arrangement portion is gripped by hand.

  Specifically, when the packaging bag is heated in a state where the article is contained in the housing part and the main body part is sealed, the internal pressure of the housing part rises, and the sheet constituting the peel seal part by the increase in the internal pressure A force that peels the inner surfaces of the material is applied to the peel seal portion. As a result, the peel seal part peels off, and the space in the housing part and the space between the pair of inner facing parts communicate with each other via the gas inflow part, and the gas in the housing part passes through the gas inflow part. It flows between the inner facing parts. And the gas which flowed in between a pair of inner side opposing parts is discharged | emitted from the gas discharge part to the outer side of an inner arrangement | positioning part, and is discharged | emitted from the main body opening part to the outer side of a main body part. Thereby, since it is prevented that the internal pressure of a storage part raises, it can prevent that a packaging bag is damaged by the raise of internal pressure.

  Moreover, in the part provided with the inner side arrangement | positioning part in a packaging bag, since an inner side arrangement | positioning part and a main-body part overlap, the heat of the gas which flowed in between a pair of inner side opposing parts becomes difficult to be transmitted to the outer side of a main-body part. For this reason, when the packaging bag is gripped by hand at a position including the inner arrangement portion, it can be prevented from being burned by the heat of the gas discharged from the housing portion.

  It is preferable that the peeling seal portion includes a convex portion that is convex toward the housing portion side.

  According to such a configuration, since the peel seal portion includes the convex portion formed convex toward the housing portion side, the force for peeling the peel seal portion caused by the increase in the internal pressure of the housing portion is convex. Will concentrate on the shape. Thereby, since the peeling seal part is easily peeled from the convex part, the gas in the housing part can be more easily discharged to the outside of the main body part.

  It is preferable that the pair of inner facing portions are configured to be contactable and separable.

  According to such a configuration, since the pair of inner facing portions are configured to be able to contact and separate, when the gas in the housing portion flows from the gas inflow portion to the pair of inner facing portions, the pair of inner facing portions is caused by the pressure of the gas that has flowed in. The space | interval of an inner side opposing part will spread. Thereby, since the gas in the accommodating part is more likely to flow between the pair of inner facing parts, the gas in the accommodating part can be more efficiently discharged to the outside of the main body part.

  It is preferable that the convex portion is formed to be convex toward the central portion of the housing portion.

According to this, since the convex part is formed so as to be convex toward the central part of the housing part, the gas in the housing part can be more efficiently discharged to the outside of the main body part. .
Specifically, when the sealed packaging bag is heated, the accommodating portion expands from the central portion side of the accommodating portion toward the outer peripheral portion of the accommodating portion, so that the convex shape is formed toward the central portion of the accommodating portion. By forming the convex portion, a force for peeling the peeling seal portion is easily applied to the convex portion. Thereby, since peeling of a peeling seal part arises more easily, the gas in a storage part can be discharged | emitted more efficiently to the outer side of a main-body part.

  As described above, according to the present invention, it is possible to prevent burns due to the heat of the gas discharged from the accommodation space when the packaging bag is gripped by hand.

The perspective view which showed the sheet | seat material which comprises the packaging bag which concerns on one Embodiment of this invention. The front view and side view which showed the packaging bag of the embodiment. It is the II cross section of the front view of FIG. 2, (a) is the figure which showed the state before a peeling seal part peels, (b) is the figure which showed the state which the peeling seal part peeled. (A)-(d) is the front view which showed the inner side arrangement | positioning part of the packaging bag which concerns on other embodiment of this invention, and its vicinity. (A) is the perspective view which showed the inner side arrangement | positioning part with which the packaging bag which concerns on further another embodiment of this invention is equipped, (b) is the perspective view which showed the edge part of the packaging bag which concerns on other embodiment. .

  Hereinafter, embodiments of the present invention will be described with reference to FIGS. In the following drawings, the same or corresponding parts are denoted by the same reference numerals, and description thereof will not be repeated.

  First, members constituting the packaging bag 1 according to the present embodiment will be described. The packaging bag 1 which concerns on this embodiment is provided with the main-body part 2 formed from a sheet material, and the inner side arrangement | positioning part 3 formed from a sheet material and arrange | positioned inside the main-body part 2, as shown in FIG. . The material constituting the sheet material is not particularly limited, and is appropriately selected according to the properties of the article. For example, resin materials such as nylon, polyethylene, polypropylene, and polyethylene terephthalate can be used. Moreover, the film by which metal layers, such as aluminum, were laminated | stacked on the film formed from these resin materials can also be used.

  The main body portion 2 includes a pair of main body facing portions 2a and 2a arranged to face each other. Moreover, the main-body part 2 is provided with the folding part 2b folded between a pair of main body opposing parts 2a and 2a. In the present embodiment, the main body 2 is formed by folding a single sheet material. Specifically, the folding part 2b is formed in the substantially central part of one sheet material, and a pair of main body opposing parts 2a and 2a are formed across the folding part 2b. The pair of main body facing portions 2a, 2a are formed in substantially the same rectangular shape. And the folding part 2b is formed between the one end parts of a longitudinal direction of a pair of main body opposing parts 2a and 2a.

  The inner placement portion 3 includes a pair of inner facing portions 3 a and 3 a that are arranged to face each other inside the main body portion 2. In this embodiment, the inner arrangement | positioning part 3 provided with a pair of opposing part 3a and 3a is formed by folding one sheet material in half. Further, the outer peripheral end portion of the inner arrangement portion 3 is connected to the inner connection portion 3b in which the ends of the pair of inner facing portions 3a, 3a are connected to each other and the ends of the pair of inner facing portions 3a, 3a are connected to each other. And a non-connected end portion 3c. In the present embodiment, the inner connecting portion 3b is formed by the end portion formed by folding the sheet material constituting the inner arrangement portion 3, and the non-connecting end portion 3c is formed at the end portion other than the inner connecting portion 3b. The That is, the outer peripheral end portion of the inner arrangement portion 3 is composed of one inner connecting portion 3b and a non-connecting end portion 3c. Thereby, the inner side arrangement | positioning part 3 is comprised so that a pair of inner side opposing part 3a, 3a can contact / separate (specifically, it can contact / separate centering on the inner side connection part 3b).

  Moreover, the inner side arrangement | positioning part 3 is provided with the gas inflow part 3e which can flow in gas between a pair of inner side opposing parts 3a and 3a, and the gas discharge part 3f which discharges | emits the gas between a pair of inner side opposing parts 3a and 3a. . The gas inflow part 3e and the gas discharge part 3f are comprised from the non-connecting edge part 3c. Specifically, the inner arrangement portion 3 has a gas flowing in between a pair of inner facing portions 3a, 3a from a part of the unconnected end portion 3c, and a pair of inner facing portions from the other part of the unconnected end portion 3c. It is comprised so that the gas between the parts 3a and 3a may be discharged | emitted. Hereinafter, a portion constituting the gas inflow portion 3e in the unconnected end portion 3c is referred to as a gas inflow end portion 3e, and a portion constituting the gas discharge portion 3f in the unconnected end portion 3c is described as a gas discharge end portion 3f. That is, the outer peripheral end portion of the inner arrangement portion 3 is composed of the gas inflow end portion 3e, the gas discharge end portion 3f, and the inner connection portion 3b. The gas inflow end portion 3e is formed to extend from the end portion of the inner connecting portion 3b in a direction inclined with respect to the extending direction of the inner connecting portion 3b.

  Next, a state where the article X is packaged in the packaging bag 1 having the above-described configuration will be described. As shown in FIG. 2, the packaging bag 1 includes a main body portion 2 formed in a bag shape and an inner arrangement portion 3 disposed inside the main body portion 2. Moreover, the packaging bag 1 is formed so as to have a quadrangular shape when viewed along the opposing direction of the pair of main body facing portions 2a, 2a constituting the main body portion 2 (in front view).

  Moreover, the packaging bag 1 is provided with the outer periphery seal part 1a formed by sealing the sheet | seat material which comprises the packaging bag 1 in an outer peripheral part. The outer peripheral seal portion 1a includes a seal portion 1b formed by sealing ends of a pair of main body facing portions 2a and 2a, and an end portion of the pair of main body facing portions 2a and 2a and a folding portion 2b. The sealing portion 1c formed in this manner, the ends of the pair of body facing portions 2a, 2a, and the unconnected end portion 3c (specifically, the gas discharge end portion 3f) of the inner arrangement portion 3 are formed to be sealed. And a sealing portion 1d.

  The main body 2 includes an accommodation portion 2c that can accommodate the article X. The accommodating portion 2c is formed in a region other than the region that overlaps with the inner arrangement portion 3 inside the outer peripheral end portion of the main body portion 2 (specifically, the end portion constituting the outer peripheral seal portion 1a). The The article X is not particularly limited, and examples thereof include foods, in particular, foods containing moisture (which may be solid or liquid).

  Further, the main body 2 includes a peel seal portion 2d formed by sealing the inner surfaces of the sheet material (specifically, the pair of main body facing portions 2a, 2a) constituting the main body 2 so as to be peelable. The peel seal portion 2d is formed so as to be adjacent to the accommodating portion 2c. Further, the peel seal portion 2d is formed between the gas inflow end portion 3e and the accommodating portion 2c so that the gas inflow end portion 3e provided in the inner arrangement portion 3 and the accommodating portion 2c do not contact each other. The peel seal portion 2d is formed so as to seal a gap between the end portions of the pair of inner facing portions 3a, 3a constituting the gas inflow end portion 3e. Specifically, the peel seal portion 2d is formed so as to be adjacent to the gas inflow end portion 3e, thereby sealing the gas inflow end portion 3e. Thereby, it is prevented that the space in the inner side arrangement | positioning part 3 (between a pair of inner side opposing parts 3a and 3a) and the space in the accommodating part 2c communicate via the gas inflow end part 3e.

  Further, the peel seal portion 2d includes a convex portion 21d that is convex toward the housing portion 2c side (specifically, toward the central portion of the housing portion 2c). In the present embodiment, the peel seal portion 2d is formed in a triangular shape, so that convex portions 21d are formed at the corners of the peel seal portion 2d. Further, the peel seal portion 2d is formed on the outer peripheral end side (specifically, in the vicinity of the outer peripheral seal portion 1a) with respect to the central portion of the main body portion 2.

  Moreover, the main-body part 2 is equipped with the main-body opening part 2e which can discharge | emit the gas in the accommodating part 2c. The main body opening 2e is formed by the unconnected end portions of the pair of main body facing portions 2a and 2a. That is, the main body opening 2e is formed at the end of the main body 2 (specifically, the corner of the rectangular packaging bag 1). Further, the gas discharge end portion 3f of the inner arrangement portion 3 is arranged inside the main body opening 2e.

  The inner arrangement portion 3 is arranged at an end portion of the packaging bag 1 (specifically, a corner portion of the rectangular packaging bag 1). Moreover, the inner side arrangement | positioning part 3 is arrange | positioned so that the edge part of the main-body part 2 may overlap (specifically, between the edge part of a pair of main body opposing part 2a, 2a). More specifically, the inner arrangement portion 3 is disposed between the portions where the gas discharge end portion 3f constitutes the main body opening 2e at the ends of the pair of main body facing portions 2a and 2a. In the present embodiment, the gas discharge end portion 3f is configured to overlap (specifically, flush with) the main body opening 2e. And the space formed between a pair of inner side opposing parts 3a and 3a is in the state which connected with the space of the outer side of the main-body part 2 via the main-body opening part 2e. In this embodiment, since the main body opening is formed at the corner of the main body 2, the space formed between the pair of inner facing portions 3 a, 3 a is released to the outside of the main body 2 in a plurality of directions. Is done.

  Further, in the inner arrangement portion 3, the gas inflow end portion 3e and a part of the inner connection portion 3b are arranged closer to the accommodating portion 2c than the outer peripheral seal portion 1a, and the gas inflow end portion 3e is closed by the peeling seal portion 2d. ing.

  The packaging bag 1 configured as described above is sealed in a state in which the article X is accommodated by forming the outer peripheral seal portion 1a and the peel seal portion 2d. And such a packaging bag 1 is heated in the state which accommodated the article | item X. FIG. The method for heating the packaging bag 1 is not particularly limited, and for example, the packaging bag 1 may be heated using a microwave oven or may be heated by a hot water bath. And when the packaging bag 1 is heated, as shown to Fig.3 (a), since air expand | swells in the accommodating part 2c or water vapor | steam arises, the internal pressure of the accommodating part 2c will rise. Thereby, a force (hereinafter, also referred to as a peeling force) in a direction to separate the inner surfaces of the region forming the peeling seal portion 2d in the sheet material (specifically, the pair of main body facing portions 2a and 2a) is a peeling seal portion. Will join 2d.

  And by such peeling force, as shown in FIG.2 (b), when the peeling seal | sticker part 2d peels, the space in the accommodating part 2c and the inside arrangement | positioning part 3 (between a pair of inner side opposing parts 3a and 3a) ) Communicated with each other through the gas inflow end portion 3e. Thereby, the gas (air, water vapor, etc.) in the accommodating portion 2c flows into the inner arrangement portion 3 (between the pair of inner facing portions 3a, 3a) from the gas inflow end portion 3e. And the gas which flowed into the inside arrangement | positioning part 3 (between a pair of inner side opposing parts 3a and 3a) is discharged | emitted from the gas discharge | emission end part 3f (at the same time in this embodiment), and the main-body part 2 from the main-body opening part 2e. Is discharged to the outside. Thereby, the gas in the accommodating part 2c is discharged | emitted to the outer side of the packaging bag 1. FIG.

  As described above, the packaging bag 1 according to the embodiment of the present application can prevent burns due to the heat of the gas discharged from the housing portion 2c when gripped by hand.

  That is, the inner arrangement portion 3 discharges the gas in the housing portion 2c between the pair of inner facing portions 3a and 3a and the gas between the pair of inner facing portions 3a and 3a to the outside. A gas discharge portion 3f that can be formed, and the peel seal portion 2d is formed between the gas inflow portion 3e and the accommodating portion 2c so that the gas inflow portion 3e and the accommodating portion 2c do not contact each other, and the main body opening portion 2e is configured to be able to discharge the gas discharged from the gas discharge portion 3f to the outside of the main body portion 2, so that the gas (for example, air or water vapor) in the housing portion 2c is a pair of inner facing portions 3a, 3a. It is discharged to the outside of the main body 2 through the space. Thereby, it can prevent that the packaging bag 1 is damaged by the raise of the internal pressure of the accommodating part 2c. Moreover, since the gas in the accommodating portion 2c flows between the pair of inner facing portions 3a and 3a, it is possible to prevent burns due to the heat of the gas when the portion including the inner arrangement portion 3 is gripped by hand. it can.

  Specifically, when the packaging bag 1 is heated in a state where the article is accommodated in the accommodating portion 2c and the main body portion 2 is sealed, the internal pressure of the accommodating portion 2c increases, and the peeling seal portion is increased by the increase in the internal pressure. A force that peels the inner surfaces of the sheet material constituting 2d is applied to the peel seal portion 2d. As a result, the peel seal portion 2d is peeled off, and the space in the housing portion 2c and the space between the pair of inner facing portions 3a and 3a communicate with each other via the gas inflow portion 3e. Flows between the pair of inner facing portions 3a, 3a through the gas inflow portion 3e. And the gas which flowed in between a pair of inner side opposing parts 3a and 3a is discharged | emitted from the gas discharge part 3f to the outer side of the inner arrangement | positioning part 3, and is discharged | emitted from the main body opening part 2e to the outer side of the main body part 2. FIG. Thereby, since it is prevented that the internal pressure of the accommodating part 2c rises, it can prevent that the packaging bag 1 is damaged by the raise of internal pressure.

  Moreover, in the part provided with the inner side arrangement | positioning part 3 in the packaging bag 1, since the inner side arrangement | positioning part 3 and the main-body part 2 overlap, the heat | fever of the gas which flowed in between a pair of inner side opposing parts 3a and 3a to the outer side of the main-body part 2 is carried out. It becomes difficult to convey. For this reason, when the packaging bag 1 is gripped by hand at the position where the inner arrangement portion 3 is provided, it is possible to prevent burns due to the heat of the gas discharged from the housing portion 2c.

  Since the peel seal portion 2d includes a convex portion 21d formed in a convex shape toward the housing portion 2c, the force that peels the peel seal portion 2d caused by an increase in internal pressure of the housing portion 2c is a convex portion. Concentrate on 21d. Thereby, since the peeling seal | sticker part 2d peels easily from the convex-shaped part 21d, the gas in the accommodating part 2c can be discharged | emitted to the outer side of the main-body part 2 more easily.

  Since the pair of inner facing portions 3a and 3a are configured to be contactable and separable, when the gas in the housing portion 2c flows into the space between the pair of inner facing portions 3a and 3a from the gas inflow portion 3e, the pressure of the inflowing gas As a result, the distance between the pair of inner facing portions 3a, 3a is increased. Thereby, since the gas in the accommodating part 2c becomes easy to flow in between a pair of inner side opposing parts 3a and 3a, the gas in the accommodating part 2c can be discharged | emitted to the outer side of the main-body part 2 more efficiently.

  Since the convex portion 21d is formed to be convex toward the central portion of the housing portion 2c, the gas in the housing portion 2c can be discharged to the outside of the main body portion 2 more efficiently.

  Specifically, when the sealed packaging bag 1 is heated, the accommodating portion 2c expands from the central portion side of the accommodating portion 2c toward the outer peripheral portion of the accommodating portion 2c, and thus protrudes toward the central portion of the accommodating portion 2c. By forming the convex portion 21d so as to have a shape, a force for peeling the peel seal portion 2d is easily applied to the convex portion 21d. Thereby, since peeling of the peeling seal | sticker part 2d arises more easily, the gas in the accommodating part 2c can be discharged | emitted to the outer side of the main-body part 2 more efficiently.

  In addition, the packaging bag which concerns on this invention is not limited to the said embodiment, A various change is possible in the range which does not deviate from the summary of this invention. Further, the configurations and methods of the plurality of embodiments described above may be arbitrarily adopted and combined (even if the configurations and methods according to one embodiment are applied to the configurations and methods according to other embodiments). Of course, it is of course possible to arbitrarily select configurations, methods, and the like according to other various modifications and adopt them in the configurations, methods, and the like according to the above-described embodiments.

  For example, in the said embodiment, although the inner side arrangement | positioning part 3 is comprised so that one gas inflow part (gas inflow end part) 3e may be provided, it is not limited to this, For example, FIG. ), A plurality of gas inflow portions (gas inflow end portions) gas inflow end portions 3e may be provided. In such a case, a plurality of peel seal portions 2d are also formed.

  Moreover, in the said embodiment, although the gas inflow end part 3e of the inner side arrangement | positioning part 3 is comprised so that it may incline with respect to the extending direction of the inner side arrangement | positioning part 3, it is not limited to this, For example, As shown in FIG.4 (b), you may form so as to be substantially orthogonal to the direction where the inner side connection part 3b is extended.

  Moreover, in the said embodiment, although the gas inflow end part 3e is arrange | positioned so that it may extend in the direction substantially orthogonal to the direction which goes to the outer peripheral part from the center part of the accommodating part 2c, it is not limited to this. Instead, for example, as shown in FIG. 4B, it may be arranged so as to extend in a direction along the direction from the central portion of the accommodating portion 2 c toward the outer peripheral portion.

  Moreover, in the said embodiment, although the convex-shaped part of the peeling seal | sticker part 2d is formed in convex shape toward the center part of the accommodating part 2c, it is not limited to this, For example, FIG. ), It may be formed to be convex in a direction (for example, a direction along the outer periphery of the packaging bag 1) different from the direction toward the central portion of the housing portion 2c.

  Moreover, in the said embodiment, the non-connecting edge part 3c other than the gas inflow end part 3e among the non-connecting end parts 3c in the inner side arrangement part 3 is arrange | positioned between the edge parts of a pair of main body opposing parts 2a and 2a. However, the present invention is not limited to this. For example, the other non-connected end 3c other than the gas inflow end 3e is the outer periphery. You may be comprised so that it may be located in the accommodating part 2c side rather than the seal | sticker part 1a. In such a case, sealing is performed so that the facing surfaces of the pair of body facing portions 2a, 2a do not peel in the vicinity of the other unconnected end portion 3c (that is, the sealing portion 1a is formed), The other unconnected end 3c is closed.

  Moreover, in the said embodiment, although the peeling seal | sticker part 2d is formed so that it may adjoin with the gas inflow end part 3e, it is not limited to this, For example, as shown in FIG.4 (c), You may form in the position (specifically, the position spaced apart from the inner side arrangement | positioning part 3) spaced apart from the gas inflow end part 3e.

  Moreover, in the said embodiment, although the peeling seal | sticker part 2d is comprised so that one convex-shaped part 21d may be provided, it is not limited to this, For example, as shown in FIG.4 (d), You may comprise so that the convex part 21d may be provided with two or more.

  Moreover, in the said embodiment, although the inner side arrangement | positioning part 3 is formed by folding one sheet material into two, it is not limited to this, For example, it shows to Fig.5 (a) As such, it may be cylindrical. Specifically, the cylindrical inner arrangement portion 3 includes openings 2g and 2g at both ends in the axial direction, and the unconnected end portions 3c and 3c are configured by opposing portions of the openings 2g. That is, the cylindrical inner arrangement portion 3 includes unconnected end portions 3c and 3c at both end portions in the axial direction. In addition, the cylindrical inner arrangement portion 3 is opposed to the unconnected end portions 3c and 3c at both ends, and a pair of inner facing portions 3a and 3a is configured by a region where the unconnected end portions 3c and 3C are connected to each other. The In addition, the cylindrical inner arrangement portion 3 is configured such that both end portions of one inner facing portion 3a and both end portions of the other inner facing portion 3a, which are positioned in a direction orthogonal to the axial direction, are respectively connected by inner connecting portions 3b. Is done. That is, the cylindrical inner arrangement portion 3 includes a pair of inner coupling portions 3b and 3b. The inner connecting portion 3b is constituted by a portion other than the pair of inner facing portions 3a, 3a in the cylindrical inner arrangement portion 3. And the cylindrical inner arrangement | positioning part 3 comprises the gas inflow end part 3e by the unconnected end part 3c formed in the one end part of an axial direction, and the unconnected end part 3c formed in the other end part of an axial direction Constitutes the gas discharge end 3f.

  Moreover, in the said embodiment, although the gas discharge | emission end part 3f (non-connection end part 3c) of the inner side arrangement | positioning part 3 is comprised so that it may overlap with the main body opening part 2e (specifically, it becomes flush | planar). For example, as shown in FIG. 5B, the gas discharge end portion 3f (non-connecting end portion 3c) is configured to be closer to the housing portion 2c than the main body opening portion 2e. May be.

  Moreover, in the said embodiment, although the main-body part 2 and the inner side arrangement | positioning part 3 are formed using a separate sheet material, it is not limited to this, For example, one sheet material is folded. Thus, the main body portion 2 and the inner arrangement portion 3 may be formed. Moreover, in the said embodiment, although the main-body part 2 is formed from one sheet material, it is not limited to this, For example, a pair of main body opposing part 2a, 2a is formed from a separate sheet material May be. Moreover, in the said embodiment, although the main-body part 2 is comprised so that the folding part 2b may be provided, it is not limited to this, For example, the main-body part 2 which is not provided with the folding part 2b may be sufficient. .

  Moreover, in the said embodiment, although the inner side arrangement | positioning part 3 is arrange | positioned at the corner | angular part of the rectangular packaging bag 1, it is not limited to this, For example, it arrange | positions at edge parts other than a corner | angular part. It may be configured as follows. Specifically, it may be arranged in a region between both ends of each side of the rectangular packaging bag 1 (preferably near the corner).

  DESCRIPTION OF SYMBOLS 1 ... Packaging bag, 1a ... Outer periphery seal part, 1b, 1c, 1d ... Seal part, 2 ... Main body part, 2a ... Main body opposing part, 2b ... Folding part, 2c ... Housing part, 2d ... Peeling seal part, 2e ... Main body Opening portion, 2g ... opening portion, 21d ... convex portion, 3 ... inside arrangement portion, 3a ... inside facing portion, 3b ... inside connecting portion, 3c ... non-connecting end portion, 3e ... gas inflow portion (gas inflow end portion) 3f ... Gas discharge part (gas discharge end part), X ... Article

Claims (4)

A main body portion formed in a bag shape using a sheet material, and an inner placement portion having a pair of inner facing portions arranged to face each other inside the main body portion,
The main body includes a peel seal portion formed by releasably sealing the inner surfaces of the sheet material constituting the main body portion, a housing portion formed so as to be in contact with the peel seal portion and capable of accommodating an article, A main body opening capable of discharging the gas in the housing part,
The inner arrangement portion includes a gas inflow portion capable of flowing the gas in the housing portion between the pair of inner facing portions, and a gas discharge portion capable of discharging the gas between the pair of inner facing portions to the outside,
The peel seal portion is formed between the gas inflow portion and the accommodating portion so that the gas inflow portion and the accommodating portion do not contact each other,
The main body opening is configured to be capable of discharging the gas discharged from the gas discharge portion to the outside of the main body portion.   The packaging bag according to claim 1, wherein the peel seal portion includes a convex portion that is convex toward the housing portion side.   The packaging bag according to claim 1 or 2, wherein the pair of inner facing portions are configured to be contactable and separable.   The packaging bag according to claim 2, wherein the convex portion is formed so as to be convex toward a central portion of the housing portion.