WO2021181690A1 - Container - Google Patents

Abstract

A container (100) is constituted by comprising: one or a plurality of sheet materials that include a body-constituting sheet material (21) obtained by laminating a plurality of film layers that include an inner film layer (23) and an outer film layer (22). The body-constituting sheet material (21) has: a first non-bonded section (24a) in which the inner film layer (23) and the outer film layer (22) are non-bonded; a second body seal section (27) in which the inner film layer (23) and the outer film layer (22) are bonded; and a second non-bonded section (24b) in which the inner film layer (23) and the outer film layer (22) are non-bonded. A filling material is sealed in the first non-bonded section (24a) to form a filled section (60). When an isolating seal section (26c), which is a portion that separates the filled section (60) from the second non-bonded section (24b) in a first body seal section (26), is detached, the filling material is allowed to flow from the filled section (60) into the second non-bonded section (24b).

Description

container

The present invention relates to a container.

As a container having a structure in which a plurality of films are laminated and a filler such as air is sealed between the layers, for example, in Patent Document 1, a storage area for storing a container and a container body surrounding the storage area are provided. (In the same document, it is described as an inner container constituent sheet material) and a main body constituent sheet material in which a plurality of film layers are laminated (in the same document, it is described as a container main body constituent sheet material). (In the same document, it is described as a sheet material container), and the main body constituent sheet material is a main body sealing portion in which a plurality of film layers are joined to each other (in the same document, an inner container sealing portion). The description) and a non-bonded portion in which the plurality of film layers are partially non-bonded, and a filler is sealed between the layers of the plurality of film layers in the non-bonded portion to form a filled portion. Describes the container you are using.
Prior Art Document Patent Document 1 Japanese Patent Application Laid-Open No. 2018-144860

The present invention is a container including one or a plurality of sheet materials including a main body constituent sheet material in which a plurality of film layers including an inner film layer and an outer film layer are laminated, and houses the contents. It includes a storage area and a container body that is composed of the main body constituent sheet material and surrounds the storage area. The main body constituent sheet material is formed by joining the inner film layer and the outer film layer. It is a closed region defined by the first main body seal portion, and the first non-joint portion in which the inner film layer and the outer film layer are non-bonded, and the inside or the inside of the first non-joint portion or On the outside, it is a closed region defined by a second main body sealing portion in which the inner film layer and the outer film layer are joined and the first main body sealing portion, and the inner film layer and the outer film are defined. It has a second non-bonded portion in which the layer is non-bonded, and a filler is sealed between the inner film layer and the outer film layer in the first non-bonded portion to form a filled portion. When the isolation seal portion, which is a portion separating the filling portion and the second non-joining portion in the first main body sealing portion, is peeled off, the filler is removed from the filling portion by the second non-joining portion. Regarding the container that can flow into the joint.

It is a perspective view of the container which concerns on 1st Embodiment. It is a rear view of the container which concerns on 1st Embodiment. It is a bottom view of the container which concerns on 1st Embodiment. It is sectional drawing which follows the AA line of FIG. It is an exploded perspective view which shows the inner film layer and the outer film layer of the main body constitution sheet material. It is an exploded perspective view which shows the inner bag constituent sheet material and the main body constituent sheet material. It is a top view which shows the container composition sheet material which has the inner bag composition sheet material and the main body composition sheet material which are laminated with each other. 8 (a) and 8 (b) are vertical cross-sectional views of the container according to the first embodiment, and FIG. 8 (a) is a view showing a state before the first main body seal portion is peeled off. FIG. 8 (b) is a diagram showing a state in which the first main body seal portion is peeled off. 9 (a), 9 (b) and 9 (c) are views showing the main body constituent sheet material in each of the modified examples of the first embodiment, of which FIG. 9 (a) is the modified examples 1 and FIG. 9 (b) shows a modified example 2, and FIG. 9 (c) shows a modified example 3. It is a plan sectional view of the container which concerns on 2nd Embodiment.

Detailed description of the invention

According to the examination by the present inventors, the container of Patent Document 1 still has room for improvement from the viewpoint of shape retention.

The present invention relates to a container having a structure having a more excellent shape retention.

Hereinafter, examples of embodiments of the present invention will be described with reference to the drawings. In FIG. 3, the position of the center of gravity 200 in a plan view is indicated by a point. 8 (a) and 8 (b) are front sectional views along the central axis of the container 100, and the bottom gusset portion 13 and its periphery are partially enlarged. Further, in FIGS. 8 (a) and 8 (b), the inner bag 40 is not shown.
In all drawings, similar components are designated by the same reference numerals, and duplicate description will be omitted as appropriate.

[First Embodiment]
First, the first embodiment will be described with reference to FIGS. 1 to 8 (b).
The container 100 according to the present embodiment is a container including one or a plurality of sheet materials including a main body constituent sheet material 21 in which a plurality of film layers including an inner film layer 23 and an outer film layer 22 are laminated. It includes a storage area 17 for accommodating the contents 18, and a container body 20 which is composed of a main body constituent sheet material 21 and surrounds the accommodating area 17, and the main body constituent sheet material 21 is an inner film. The first non-bonded area is defined by the first main body sealing portion 26 in which the layer 23 and the outer film layer 22 are bonded, and the inner film layer 23 and the outer film layer 22 are not bonded. The closure defined by the portion 24a, the second main body sealing portion 27 in which the inner film layer 23 and the outer film layer 22 are joined inside or outside the first non-joining portion 24a, and the first main body sealing portion 26. It has a second non-bonded portion 24b in which the inner film layer 23 and the outer film layer 22 are non-bonded, and the inner film layer 23 and the outer film layer in the first non-bonded portion 24a are regions. A filler is sealed between the layers of 22 to form a filling portion 60, and the isolation sealing portion 26c, which is a portion of the first main body sealing portion 26 that separates the filling portion 60 and the second non-joining portion 24b, is formed. When peeled off, the filler can flow from the filling portion 60 into the second non-joining portion 24b.

Since the filler is sealed in the first non-joining portion 24a of the main body constituent sheet material 21, the first non-joining portion 24a bulges in the thickness direction of the main body constituent sheet material 21 to form the filling portion 60. The container body 20 is reinforced by the filling portion 60 so as to be maintained in a desired shape.
The filler enclosed in the filling portion 60 can be a fluid (gas or liquid), a solid (for example, powder or granular material, resin pellets, etc.) or a semi-solid (for example, a foaming agent, etc.), and can be a gas such as air. It is preferable to have.

According to the present embodiment, when a strong impact is applied to the container 100 due to dropping or the like, even if the isolation seal portion 26c is peeled off, the filler inside the filling portion 60 will flow out. However, it is preferably regulated by the second main body sealing portion 27.
More specifically, when the isolation seal portion 26c is peeled off and the filling portion 60 (first non-joining portion 24a) and the second non-joining portion 24b communicate with each other, the filler inside the filling portion 60 is separated. The seal portion 26c flows into the layers between the inner film layer 23 and the outer film layer 22 in the second non-bonded portion 24b through the peeled portion. At this time, when the pressure of the filler in the filling portion 60 (first non-joining portion 24a) and the pressure of the filler in the second non-joining portion 24b are balanced, the outflow of the filler from the filling portion 60 is stopped. As a result, the pressure drop inside the filling portion 60 due to the outflow of the filler to other than the second non-joining portion 24b is suppressed, so that the change in the shape of the container 100 can be suppressed and the structure of the container 100 can be suppressed. Sufficient strength can be maintained.
That is, according to the present embodiment, it is possible to realize a container 100 having a structure having excellent shape retention (deformation resistance).

In the present invention, the form of the container 100 is not particularly limited, and it may be a form that can stand on its own, or a form that is supposed to be laid down without standing on its own. In the case of the present embodiment, the container 100 has a bottom gusset portion 13 as a bottom portion, and is a self-supporting container that can stand on its own in a state where the bottom gusset portion 13 is placed on a horizontal mounting surface.

In the present embodiment, unless otherwise specified, the description of the positional relationship (upper and lower relationship, etc.) of each component of the container 100 refers to the positional relationship of the container 100 in a self-supporting state as shown in FIGS. 1 and 2. This is what I explained. However, the positional relationship in these explanations does not necessarily match the positional relationship when the container 100 is used or manufactured.
In addition, the positional relationship shown in each figure may be described with respect to the positional relationship of each component of the container 100.
The front side of the container 100 (the back side of the paper in FIG. 2) is referred to as the front, the back side of the container 100 (the front side in FIG. 2) is referred to as the rear, and the left side (the right side in FIG. 2) facing the front of the container 100 is the left. The right side (left side in FIG. 2) facing the front of the container 100 is called the right side. Further, the left-right direction of the container 100 may be referred to as a width direction.

In the present invention, the type of the content 18 is not particularly limited. Examples of the content 18 include shampoo, conditioner, body soap, detergent, bleach, fabric softener, beverage, food, engine oil, chemicals and the like.
Further, the content 18 may be a liquid (including a paste), a solid (for example, a granular one (including a granular one), a powdery one, etc.). good.
In the case of this embodiment, the content 18 is, for example, a liquid.
When the content 18 is a liquid, the viscosity of the content 18 is preferably 1 mPa · s or more and 120,000 mPa · s or less (measured with a B-type viscometer. For example, Viscometer TV manufactured by Toki Sangyo Co., Ltd.) at 30 ° C. -10 or measured with a viscometer TVB-10 or the like), more preferably 1 mPa · s or more and 60,000 mPa · s or less.

In the case of the present embodiment, the container body 20 has a body portion 11 and a bottom gusset portion 13. More specifically, the container body 20 further has a gusseted portion 14. The top gusset portion 14 is arranged on the upper side of the body portion 11, the bottom gusset portion 13 is arranged on the lower side of the body portion 11, and the container body 20 is formed in a bag shape.
The container body 20 surrounds the storage area 17 (in the case of the present embodiment, it surrounds the inner bag 40 described later). The container body 20 constitutes the outer shell of the container 100. In the following, the body 11, top gusset 14, and bottom gusset 13 of the container body 20 may be referred to as the body 11, top gusset 14, and bottom gusset 13 of the container 100.
The container 100 further includes a cylindrical mouth and neck portion protruding upward from the gusset portion 14. The mouth and neck portion is composed of an injection tube portion 15a of a spout member 15 described later.
The front shape of the body portion 11 is not particularly limited, but in the case of the present embodiment, for example, as shown in FIG. 2, the body portion 11 has a vertically long shape having a substantially constant width dimension, and the upper edge of the body portion 11 is upward. It is formed in a convex arc shape.
As shown in FIGS. 1 and 2, the body portion 11 has a first planar portion 20a (front panel) and a second planar portion 20b (rear side) facing each other with the accommodating area 17 in between. Has a panel). The first planar portion 20a is located on the front side, and the second planar portion 20b is located on the back side.

The container main body 20 is formed by bending the main body constituent sheet material 21 (see FIGS. 5 and 6) and joining the peripheral edges of the main body constituent sheet material 21 to each other (in the case of the present embodiment, via the inner bag constituent sheet material 41). It is constructed by joining them together.
As shown in FIG. 4, in the case of the present embodiment, the container 100 further includes, for example, an inner bag 40 arranged inside the container body 20. The inner bag 40 is composed of an inner bag constituent sheet material 41 (see FIG. 6), which is the innermost layer sheet material of one or a plurality of sheet materials. More specifically, the inner bag 40 is formed in a bag shape by bending the inner bag constituent sheet material 41 and joining a part of the inner bag constituent sheet material 41 to each other at the peripheral edge portion. The inner bag 40 is covered with the container body 20. The inner bag 40 has a storage area 17 inside the inner bag 40.
However, in the present invention, when the inner container defining the storage area 17 is arranged inside the container body 20, the inner container is not limited to the inner bag 40 made of the sheet material, for example, blow molding. It may be composed of.

The shape of the inner bag 40 is not particularly limited, but in the case of the present embodiment, the inner bag 40 is formed in the same shape as the container body 20.
The inner bag 40 has a first main surface portion 40a located on the front side and a second main surface portion 40b located on the back side with the accommodating area 17 in between.

The container 100 includes, for example, a spout member 15 provided so as to penetrate the top gusset portion 14, and a cap portion 70 attached to the spout member 15 (for example, detachably attached).
More specifically, the spout member 15 is, for example, at one end (lower end) in the axial direction of the tubular pouring cylinder portion 15a through which the content 18 is passed and the pouring cylinder portion 15a, as shown in FIG. It is integrally provided with a plate-shaped plate-shaped portion 15b provided in an arrangement orthogonal to the axial direction. A thread is formed on the outer peripheral surface of the dispensing cylinder portion 15a, and the dispensing cylinder portion 15a has a male screw shape. The plate-shaped portion 15b is provided on, for example, the inner surface or the outer surface of the portion of the inner bag constituent sheet material 41 that is arranged along the top gusset portion 14 of the body portion 11.

The cap portion 70 includes, for example, a mounting portion 71 which is a female screw-shaped tubular portion that is detachably screwed to the dispensing cylinder portion 15a, a pump portion 72 fixed to the mounting portion 71, and a pump. It includes a dip tube 77 extending downward from the portion 72, and a head portion 73 held by the pump portion 72 so as to be able to move up and down with respect to the pump portion 72.
The head portion 73 has, for example, a support cylinder portion 74 projecting upward from the pump portion 72 and a nozzle portion 75 projecting horizontally from the upper end portion of the head portion 73, and is provided at the tip of the nozzle portion 75. Is formed with a discharge port 76 for discharging the contents 18 housed in the storage area 17.
When the head portion 73 is pushed (pressed) with respect to the pump portion 72, the contents 18 are discharged from the discharge port 76 by the action of the pump portion 72.

As shown in FIGS. 5 and 6, the main body constituent sheet material 21 mutually has an outer film layer 22 forming the outer surface side of the container main body 20 and an inner film layer 23 forming the inner surface side of the container main body 20. It is configured by laminating and joining. That is, as an example, in the case of the present embodiment, the main body constituent sheet material 21 is composed of two film layers, an outer film layer 22 and an inner film layer 23. However, the present invention is not limited to this example, and the main body constituent sheet material 21 may have a film layer other than the outer film layer 22 and the inner film layer 23.
In the case of the present embodiment, the outer film layer 22 and the inner film layer 23 are formed to have the same shape. However, the present invention is not limited to this example, and the outer film layer 22 and the inner film layer 23 may have different shapes from each other. In the case of a different shape, the outer film layer 22 preferably has a larger shape than the inner film layer 23.
The outer film layer 22 and the inner film layer 23 are formed with insertion holes through which the ejection tube portion 15a of the spout member 15 is inserted.

The main body constituent sheet material 21 is formed with a non-joint portion 24 in which the outer film layer 22 and the inner film layer 23 are partially non-bonded to each other. The non-joining portion 24 includes a first non-joining portion 24a (FIG. 6) and a second non-joining portion 24b (FIG. 3).
In FIGS. 3, 5, 6 and 7, in the main body constituent sheet material 21, the region where the outer film layer 22 and the inner film layer 23 are joined to each other in order to define the non-joined portion 24, that is, the first For convenience, hatching that rises to the right is provided in the forming regions of the 1 main body seal portion 26 and the 2nd main body seal portion 27.
Further, in FIG. 6, the seal boundary line 21c, which is the boundary line between the seal region of the peripheral portion of the main body constituent sheet material 21 and the other region, is shown by a two-dot chain line. In the case of the present embodiment, in the region outside the seal boundary line 21c of the main body constituent sheet material 21, the outer film layer 22 and the inner film layer 23 are joined to each other at the time of bag making, and the inner film is formed. The layer 23 and the inner bag constituent sheet material 41 are joined to each other.
As a method of joining the outer film layer 22 and the inner film layer 23, as an example, heat sealing, ultrasonic sealing, bonding with an adhesive, or the like can be used.
For example, in one or both of the outer film layer 22 and the inner film layer 23, the surface facing the other is partially non-bonded. The non-bonding treatment can be easily formed by applying a non-bonding agent (so-called glue-killing agent) to bring it into a glue-killing state. As the glue killing agent, any agent can be used as long as it can suppress the bonding between the outer film layer 22 and the inner film layer 23. As the glue-killing agent, for example, printing inks, medium inks, glue-killing inks and the like used for each of offset printing, flexographic printing and letter press printing (letterpress printing) can be preferably used. Further, a thermosetting type ink or an ultraviolet curable type ink can be preferably used. The area where the non-joining treatment is applied is the non-joining portion 24.

Of the first non-joining portion 24a and the second non-joining portion 24b, the filling portion 60 is formed by sealing the filler in the first non-joining portion 24a.
The second non-joining portion 24b is not filled with a filler, or is filled with a filler at a lower pressure than that of the first non-joining portion 24a (filling portion 60).
In the present invention, other non-joining portions 24 other than the first non-joining portion 24a and the second non-joining portion 24b are present, and the filler is not sealed in the other non-joining portions, or the first non-joining portion is not sealed. The filler may be sealed at a lower pressure than the non-joining portion 24a.

In the case of the present embodiment, for example, as shown in FIGS. 1 to 3, the filling portion 60 has a first body portion filling portion 61 formed in a circumferential shape along the peripheral edge portion of the first surface-shaped portion 20a. , The second body filling portion 62 formed in a circular shape along the peripheral edge portion of the second surface-shaped portion 20b, and the bottom filling portion 63 formed in a circumferential shape along the peripheral edge portion of the bottom gusset portion 13. And the top filling portion 64 formed in a circumferential shape around the pouring cylinder portion 15a in the top gusset portion 14.
The lower edge of the first body filling portion 61 is connected to the leading edge of the bottom filling portion 63, and the lower edge of the second body filling portion 62 is connected to the trailing edge of the bottom filling portion 63. The central portion of the upper end portion of the filling portion 61 in the lateral width direction is connected to the central portion of the front end portion of the top filling portion 64 in the lateral width direction.
By providing the filling portion 60 having such a structure, the container 100 is sufficiently structurally strong over almost the entire container main body 20.
In the case of the present embodiment, the entire filling portion 60 is formed in a continuous manner.
In the present invention, the container 100 may include a plurality of filling portions 60 that are independent of each other.

In the case of the present embodiment, each of the outer film layer 22 and the inner film layer 23 has a layer structure including a plurality of resin layers. Further, the inner bag constituent sheet material 41 also has a layer structure including a plurality of resin layers.

The main body constituent sheet material 21 preferably contains any one of a polyethylene-based, polypropylene-based, polyester-based, and polyamide-based resin layers.
The material of the resin layer constituting the outer film layer 22 and the inner film layer 23 of the main body constituent sheet material 21 is not particularly limited, and is, for example, high-density polyethylene (HDPE), medium-density polyethylene (MDPE), and low-density polyethylene (LDPE). ), Linear low density polyethylene (LLDPE), ultra low density polyethylene (ULDPE), polyethylene-based materials such as ethylene-vinyl alcohol copolymer (EVOH), or stretched polypropylene (OPP), unstretched polypropylene (CPP), Polypropylene-based materials such as isotactic PP, syndiotactic PP, atactic PP, random PP, block PP, or polyethylene terephthalate (PET), amorphous polyethylene terephthalate (acrystalline PET), polybutylene terephthalate (PBT), Polyethylene-based materials such as polyethylene naphthalate (PEN) and polybutylene naphthalate (PBN), or polyamides such as stretched nylon (ONy), unstretched nylon (CNy), nylon 6, nylon 66, nylon 11, nylon 12, MXD6, etc. It is more preferably one of the based materials, and among these, the polyethylene-based material is particularly preferable.

As an example, the outer film layer 22 has a four-layer structure formed by laminating four resin layers of the first layer, the second layer, the third layer, and the fourth layer in this order.
Of these, the first layer constitutes the outer surface of the container body 20. The first layer is made of, for example, polyethylene terephthalate (PET) or stretched nylon (ONy). The main function of the first layer is to provide the container body 20 with a glossy feeling and printability, and to secure the rigidity of the container body 20.
The second layer is, for example, a layer of transparent vapor-deposited PET composed of polyethylene terephthalate in which silica and / or alumina is vapor-deposited on the surface of the second layer on the first-layer side. The main function of the second layer is to provide the container body 20 with a gas barrier property.
The third layer is made of, for example, stretched nylon. The main function of the third layer is to secure pinhole resistance of the container body 20.
The fourth layer is made of, for example, linear low density polyethylene (LLDPE). The main function of the fourth layer is to secure heat sealability with the inner film layer 23.

As the layer structure of the inner film layer 23, in addition to the same layer structure as the first to fourth layers of the outer film layer 22, for example, a fifth layer composed of linear low density polyethylene (LLDPE) is used. The structure to be provided can be mentioned. The fifth layer is a layer adjacent to the first layer, and constitutes a surface of the inner film layer 23 opposite to the fourth layer. The main function of the fifth layer is to secure heat sealability with the outer film layer 22.
The main function of the fourth layer of the inner film layer 23 is to secure the heat sealability with the inner bag constituent sheet material 41.
However, the layer structure of the outer film layer 22 and the inner film layer 23 is not limited to the above example, and the material of each layer constituting the outer film layer 22 and the inner film layer 23 is not limited to the above example.

As an example, the inner bag constituent sheet material 41 constituting the inner bag 40 has a three-layer structure formed by laminating the first layer, the second layer, and the third layer in this order.
Of these, the first layer is made of, for example, linear low-density polyethylene. The main function of the first layer is to secure heat-sealing property with the main body constituent sheet material 21 (heat-sealing property with the inner film layer 23).
The second layer is, for example, a layer of transparent vapor-deposited stretched nylon composed of stretched nylon in which silica and / or alumina is vapor-deposited on the surface of the second layer on the first layer side. The main function of the second layer is to secure gas barrier properties and pinhole resistance.
The third layer is made of, for example, linear low density polyethylene. The main function of the third layer is to secure the heat sealability between the inner bag constituent sheet materials 41.
The layer structure of the inner bag constituent sheet material 41 is not limited to the structure described here.

As shown in FIG. 6, the inner bag constituent sheet material 41 is laminated on the main body constituent sheet material 21, and as shown in FIG. 7, the peripheral edge portion of the inner film layer 23 and the peripheral edge portion of the inner bag constituent sheet material 41 are joined to each other. At the same time, the peripheral edge portion of the outer film layer 22 and the peripheral edge portion of the inner film layer 23 are joined to each other. As a result, the container constituent sheet material 51 is composed of the main body constituent sheet material 21 and the inner bag constituent sheet material 41.
Here, the sealing portion of the peripheral edge portion of the container constituent sheet material 51 is referred to as a peripheral edge sealing portion 52. The peripheral edge sealing portion 52 is a sealing portion between the peripheral edge portion of the inner film layer 23 and the peripheral edge portion of the inner bag constituent sheet material 41 (hereinafter, inner / outer sealing portion 43), and the peripheral edge portion of the outer film layer 22 and the inner film layer 23. Includes a sealing portion with the peripheral edge portion (hereinafter, main body peripheral edge sealing portion 28).
In FIG. 7, the peripheral sealing portion 52 is formed with hatching that rises to the left. Further, in FIG. 7, in the region where the forming region of the peripheral edge sealing portion 52 and the forming region of the first main body sealing portion 26 overlap, the hatching that rises to the left and the hatching that rises to the right overlap.
As a method for forming the peripheral seal portion 52, as an example, heat seal, ultrasonic seal, bonding with an adhesive, or the like can be used.

As shown in FIG. 7, the main body constituent sheet material 21 is, for example, a first sheet portion 31 which is a portion constituting the first planar portion 20a and a second sheet which is a portion constituting the second planar portion 20b. A portion 32, a bottom gusset constituent sheet portion 38 which is a portion constituting the bottom gusset portion 13, a heaven gusset constituent sheet portion 39 which is a portion constituting the heaven gusset portion 14, and a tube-shaped extending portion 25. Have. The extending portion 25 extends outward from, for example, the second sheet portion 32.
The top gusset constituent sheet portion 39 is formed with an insertion hole 21a into which the ejection cylinder portion 15a of the spout member 15 is inserted.

In the case of the present embodiment, the inner bag constituent sheet material 41 is formed in the same shape as the portion of the main body constituent sheet material 21 excluding the extending portion 25.
In FIG. 6, the seal boundary line 41a of the inner bag constituent sheet material 41 is shown by a two-dot chain line for convenience. The seal boundary line 41a is a boundary line between a region where the inner bag constituent sheet material 41 is joined (sealed) with the main body constituent sheet material 21 and another region in the inner bag constituent sheet material 41, and the container constituent sheet material 51. This is a boundary line between a region where the inner bag constituent sheet materials 41 are joined to each other when the container 100 is formed (made into a bag) and another region in the inner bag constituent sheet material 41.
In the case of the present embodiment, the position of the seal boundary line 41a and the position of the seal boundary line 21c correspond to each other (overlap each other).

An insertion hole 41b through which the ejection cylinder portion 15a of the spout member 15 is inserted is formed in a portion of the inner bag constituent sheet material 41 that overlaps with the top gusset constituent sheet portion 39.
The plate-shaped portion 15b of the spout member 15 is joined to the inner surface of the portion of the inner bag constituent sheet material 41 that overlaps with the top gusset constituent sheet portion 39, and the peripheral edge of the insertion hole 41b is the inner bag constituent sheet. The peripheral seal portion 52 is formed by joining the material 41, the main body constituent sheet material 21, and the plate-shaped portion 15b.
There is. The injection cylinder portion 15a projects toward the outer surface side of the inner bag constituent sheet material 41 through the insertion hole 41b and the top gusset constituent sheet portion 39 through the insertion hole 21a.

The container constituent sheet material 51 is valley-folded at the fold line 81, the fold line 82, and the fold line 84 shown in FIG. 7, and is mountain-folded at the fold line 83 and the fold line 85, respectively. By joining the peripheral edges of 51 (inner bag constituent sheet materials 41 to each other), the container constituent sheet material 51 is formed in a double-structured bag shape.
That is, the edges of the inner bag constituent sheet material 41 are joined to each other to form the inner bag sealing portion 42 (see FIG. 1), whereby the inner bag 40 is formed by the inner bag constituent sheet material 41 and the inner bag 40 is formed. A bag-shaped container body 20 that covers the bag 40 is formed.
As a method of joining the inner bag constituent sheet materials 41 to each other, as an example, heat sealing, ultrasonic sealing, joining with an adhesive or the like can be used.
In the case of the present embodiment, the main body peripheral edge seal portion 28, the inner bag seal portion 42, and the inner / outer seal portion 43 are arranged at positions corresponding to each other (positions overlapping each other). The peripheral seal portion 28, the inner bag seal portion 42, and the inner / outer seal portion 43 are collectively referred to as the peripheral seal portion 19 (the peripheral seal portion 19 includes the main body peripheral seal portion 28, the inner bag seal portion 42, and the inner / outer seal portion 43. ).
In this way, in the container 100, one or more sheet materials (container constituent sheet material 51 and inner bag constituent sheet material 41) are bent along the bending line, and the innermost layer of at least one or more sheet materials is formed. It has a peripheral edge sealing portion 19 in which parts of the peripheral portion of the sheet material (for example, the inner bag constituent sheet material 41) are joined to each other.

In the first sheet portion 31, the portion of the top gusset constituent sheet portion 39 side of the bending line 85 is the first overlapping portion 31a. The first overlapping portion 31a is arranged so as to overlap one half of the top gusset constituent sheet portion 39 in a state before the non-joining portion 24 is filled with the filler.
In the second sheet portion 32, the portion located on the side farther from the bottom gusset constituent sheet portion 38 than the bending line 86 is the second overlapping portion 32a. The second overlapping portion 32a is arranged so as to overlap the other half portion of the top gusset constituent sheet portion 39 in a state before the non-joining portion 24 is filled with the filler.

After the container constituent sheet material 51 is formed in a double bag shape, for example, the filler is injected into the non-joining portion 24 from the injection port 25a (FIG. 7) formed in the extending portion 25, and then the filling material is expanded. The non-joining portion 24 is sealed at a portion connected to the proximal end side of the protruding portion 25. As a result, the filling material is sealed in the non-joining portion 24 to form the filling portion 60.
The pressure inside the filling portion 60 is not particularly limited, but is preferably higher than the atmospheric pressure, and can be, for example, 10 kPa or more and 500 kPa or less (gauge pressure).
After the filling portion 60 is formed, for example, the extending portion 25 is excised.
In this way, the container 100 is obtained. However, the extension portion 25 may remain even in the state of the container 100.

After the container 100 is manufactured, the content 18 is filled in the accommodating area 17 through the pouring cylinder portion 15a of the spout member 15, and then the cap portion 70 is attached to the spout member 15 to fill the accommodating area 17 with the content 18 A container 100 in which is sealed is obtained.

As shown in FIG. 7, in the case of the present embodiment, the first main body seal portion 26 includes, for example, the outer peripheral side first main body seal portion 26a formed in a circumferential shape along the peripheral edge portion of the main body constituent sheet material. It includes a plurality of (for example, four) inner peripheral side first main body seal portions 26b arranged inside the outer peripheral side first main body seal portion 26a.
The outer peripheral side first main body seal portion 26a is formed in a series, for example, over the first sheet portion 31, the second sheet portion 32, the bottom gusset constituent sheet portion 38, and the top gusset constituent sheet portion 39. There is.
The inner peripheral side first main body seal portion 26b is formed, for example, in the first sheet portion 31, the second sheet portion 32, the bottom gusset constituent sheet portion 38, and the top gusset constituent sheet portion 39, respectively.
The outer peripheral side first main body seal portion 26a is formed in an annular shape, for example. Each inner peripheral side first main body seal portion 26b is also formed, for example, in an annular shape.
Further, the outer line of the first main body seal portion 26a on the outer peripheral side is formed in a shape corresponding to the outer line of the main body constituent sheet material 21.
The center of the inner peripheral side first main body seal portion 26b formed on the first sheet portion 31 is arranged at, for example, the central portion of the first sheet portion 31. The center of the inner peripheral side first main body seal portion 26b formed on the second seat portion 32 is arranged at, for example, the central portion of the second seat portion 32. The center of the inner peripheral side first main body seal portion 26b formed on the bottom gusset constituent sheet portion 38 is arranged at, for example, the central portion of the bottom gusset constituent sheet portion 38. The center of the inner peripheral side first main body seal portion 26b formed on the heaven gusset constituent sheet portion 39 is, for example, arranged in the central portion of the heaven gusset constituent sheet portion 39 and the inner peripheral side first main body seal portion 39. The portion 26b circularly surrounds the insertion hole 21a.
The first non-joining portion 24a (filling portion 60) is a closed region defined by the outer peripheral side first main body sealing portion 26a and the plurality of inner peripheral side first main body sealing portions 26b. That is, in the present embodiment, the circumferential first non-joining portion 24a (filling portion 60) is formed by the outer peripheral side first main body sealing portion 26a and the inner peripheral side first main body sealing portion 26b. However, it is not limited to the circular first non-joining portion (filling portion), but is defined by one first main body sealing portion, and has a semiring-shaped or long first non-joining portion (filling) having both ends. It does not matter if it is a part).

As described above, the main body constituent sheet material 21 has a second main body sealing portion 27 in which the inner film layer 23 and the outer film layer 22 are joined inside or outside the first non-joined portion 24a.
In the case of the present embodiment, the second main body sealing portion 27 is arranged inside the first non-joining portion 24a.
The main body constituent sheet material 21 further has a closed region defined by the second main body sealing portion 27 and the first main body sealing portion 26, and the inner film layer 23 and the outer film layer 22 are not joined. It has a second non-joining portion 24b. That is, the second non-joining portion 24b is adjacent to the first main body sealing portion 26 and adjacent to the second main body sealing portion 27, and is adjacent to the second main body sealing portion 27 and the first main body sealing portion 27. Surrounded by 26. In the first main body sealing portion 26, the portion separating the first non-joining portion 24a (filling portion 60) and the second non-joining portion 24b is the isolation sealing portion 26c.
As shown in FIG. 3, in the case of the present embodiment, the isolation seal portion 26c is formed in an annular shape, for example, and the second main body seal portion 27 is arranged inside the isolation seal portion 26c.
More specifically, for example, any one of the plurality of first main body seal portions (inside) 26b constitutes the isolation seal portion 26c. In other words, the second non-joint portion 24b is defined by the isolation seal portion 26c (first main body seal portion (inside) 26b) and the second main body seal portion 27. Here, in the case of the present embodiment, the isolation seal portion 26c is arranged between the second main body seal portion 27 and the peripheral edge seal portion 19.
Therefore, a structure in which the volume of the second non-joining portion 24b is smaller than the volume of the first non-joining portion 24a (the volume of the filling portion 60) can be easily realized, and this is also the case in the present embodiment.
As a result, even if the isolation seal portion 26c is peeled off, the amount of the filler flowing from the filling portion 60 into the second non-joining portion 24b can be reduced. That is, since the pressure drop inside the filling portion 60 can be further suppressed, the deformation of the container 100 can be further reduced, and the state in which the container 100 is sufficiently reinforced by the filling portion 60 can be sufficiently maintained. ..
The state in which the isolation seal portion 26c is peeled off means a state in which the outer film layer 22 and the inner film layer 23 are separated from each other in at least a part of the isolation seal portion 26c.
Further, in the case of the present embodiment, the second main body seal portion 27 is arranged only inside the isolation seal portion 26c, but the second main body seal portion 27 is arranged only outside the isolation seal portion 26c. Alternatively, they may be arranged on both the inner and outer sides of the isolation seal portion 26c.

As shown in FIGS. 3 and 7, the second main body seal portion 27 is formed, for example, in an annular shape. Further, the isolation seal portion 26c and the second main body seal portion 27 are arranged concentrically with each other, for example. Therefore, the second non-joining portion 24b defined by the isolation seal portion 26c and the second main body sealing portion 27 is formed in an annular shape and is formed on the inner peripheral edge of the filling portion 60 (first non-joining portion 24a). It is formed in a circular shape along the line.
As a result, it is possible to realize a structure in which the filler satisfactorily flows into the second non-joining portion 24b regardless of which portion of the isolation seal portion 26c is peeled off. That is, the structural strength of the container 100 can be maintained more reliably.
Moreover, when the filler flows from the filling portion 60 into the second non-joining portion 24b, the second filling portion 65 arranged in a circumferential shape along the inner peripheral edge of the filling portion 60 is formed. As a result, the pressure drop inside the filling portion 60 can be suppressed, and the container body 20 can be reinforced by the second filling portion 65. That is, the structural strength of the container 100 can be maintained.

Here, as shown in FIGS. 3 and 8A, in the case of the present embodiment, the second main body sealing portion 27 and the second non-joining portion 24b are arranged inside the bottom filling portion 63. Therefore, the first main body seal portion (inside) 26b in the bottom filling portion 63 constitutes the isolation seal portion 26c. The isolation seal portion 26c and the second main body seal portion 27 are each formed in an annular shape in a plan view, and the second non-joining portion 24b is formed in an annular shape in a plan view.
More specifically, each of the isolation seal portion 26c and the second main body seal portion 27 is formed in an elongated rectangular ring shape in the front-rear direction as an example. Therefore, the second non-joining portion 24b is also formed in a long rectangular ring shape in the front-rear direction. The centers of the second main body sealing portion 27 and the second non-joining portion 24b are arranged, for example, in the center of the bottom gusset portion 13.
The bottom gusset portion 13 is shape-retaining and reinforced by the bottom filling portion 63. Further, in the bottom filling portion 63, for example, a pair of left and right side edges of the bottom filling portion 63 are in substantially even contact with each other with respect to the mounting surface, and a pair of front and rear edge portions of the bottom filling portion 63 are mounted. The container 100 is supported in a self-supporting state by being in contact with each other substantially evenly with respect to the placing surface.
Therefore, even if the isolation seal portion 26c is peeled off, the pressure drop inside the bottom filling portion 63 is suppressed by the second main body seal portion 27 and the shape of the bottom gusset portion 13 is maintained, so that the container 100 can be sufficiently self-supporting. Can be secured.
Further, as described above, the second non-joining portion 24b is formed in an annular shape in a plan view. Therefore, when the filler flows into the second non-joining portion 24b, the annular second non-joining portion 24b expands in an annular shape along the peripheral edge of the bottom gusset portion 13, while the second non-joining portion 24b. The filler does not flow into the vicinity of the center of 24b (bottom gusset portion 13) and does not expand (see FIG. 8B). That is, it is suppressed that the vicinity of the center of the bottom gusset portion 13 expands in a downwardly convex shape due to the inflow of the filler. Therefore, since the bottom filling portion 63 can be maintained in good contact with the mounting surface, the container 100 can be stably self-supporting.

In the case of the present embodiment, as shown in FIG. 3, the center of gravity 200 of the container 100 is located inside the second main body seal portion 27 in a plan view.
As a result, it is possible to suppress fluctuations in the center of gravity of the container 100 before and after the filler flows into the second non-joining portion 24b from the filling portion 60, so that the isolation seal portion 26c is peeled off and the filler is filled in the filling portion 60. The container 100 can stably stand on its own even in a state after flowing into the second non-joining portion 24b.
More preferably, even after the isolation seal portion 26c is peeled off and the filler flows from the filling portion 60 into the second non-joining portion 24b, the center of gravity of the container 100 is inside the second main body sealing portion 27 in a plan view. It is designed to be located in. As a result, the container 100 can be more reliably and stably self-supported in a state after the isolation seal portion 26c is peeled off and the filler flows from the filling portion 60 into the second non-joining portion 24b.
More specifically, the second non-joining portion 24b is evenly arranged in the front-rear direction and evenly arranged in the left-right direction with respect to the center of gravity 200. Therefore, when the filler flows into the second non-joining portion 24b, the second non-joining portion 24b swells evenly in the front-rear direction and evenly in the left-right direction with reference to the center of gravity 200.

It is also preferable that the center of gravity 200 of the container 100 is located within the formation region of the second main body seal portion 27 in a plan view. Even with such a configuration, the isolation seal portion 26c is peeled off because the fluctuation of the center of gravity of the container 100 before and after the filler flows into the second non-joining portion 24b from the filling portion 60 can be suppressed. The container 100 can be stably self-supporting even in a state after the filler has flowed from the filling portion 60 into the second non-joining portion 24b.
More preferably, even after the isolation seal portion 26c is peeled off and the filler flows from the filling portion 60 into the second non-joining portion 24b, the center of gravity of the container 100 is formed of the second main body sealing portion 27 in a plan view. It is designed to be located within the area. As a result, the container 100 can be more reliably and stably self-supported in a state after the isolation seal portion 26c is peeled off and the filler flows from the filling portion 60 into the second non-joining portion 24b.
In this case, for example, the inner film layer 23 and the outer film layer 22 are formed in the entire area inside the outer line of the second main body sealing portion 27, which is a region where the second main body sealing portion 27 has a certain area. It may be joined, or the second main body seal portion 27 may be formed in an annular shape.

As described above, in the present invention, the second main body sealing portion 27 may be formed in an annular shape or may be a region having a certain area, but in any case, the center of gravity of the container 100 may be formed. It is preferable that the 200 is located inside the outer line of the second main body seal portion 27 in a plan view.

In the case of the present embodiment, for example, the body portion 11 has a width dimension larger than the front-rear dimension, and the second non-joint portion 24b has a front-rear width larger than the width dimension. That is, the body portion 11 has a narrow shape in the front-rear direction, while the second non-joint portion 24b has a wide shape in the front-rear direction.
As a result, even when the filler flows from the filling portion 60 into the second non-joining portion 24b and the second non-joining portion 24b is expanded, the tilt of the container 100 in the front-rear direction can be suppressed. More stable independence of the container 100 can be realized.
More specifically, the dimensions of the isolation seal portion 26c and the second main body seal portion 27 in the front-rear direction are larger than the dimensions in the width direction, respectively.

The area of the second non-joining portion 24b is preferably 25% or less of the area of the first non-joining portion 24a.
By doing so, when the isolation seal portion 26c is peeled off, the amount of the filler flowing into the second non-joining portion 24b from the filling portion 60 can be more reliably suppressed, so that the pressure drop of the filling portion 60 can be further reduced. It can be surely suppressed.
Further, the volume of the second filling portion 65 formed by the inflow of the filler is also preferably 25% or less of the volume of the filling portion 60.

As shown in FIG. 3, the width dimension of the second non-joining portion 24b is, for example, preferably not more than the width dimension of the first non-joining portion 24a, and more preferably not more than half the width dimension of the first non-joining portion 24a. ..
As a result, the amount of the filler flowing from the filling portion 60 into the second non-joining portion 24b (second filling portion 65) can be made smaller, and the pressure drop of the filling portion 60 can be sufficiently suppressed.
More specifically, for example, the average value of the width dimension of the second non-joining portion 24b is preferably equal to or less than the average value of the width dimension of the first non-joining portion 24a, and more preferably the width dimension of the first non-joining portion 24a. It is less than half of the average value. More preferably, the maximum width dimension of the second non-joining portion 24b is smaller than half the minimum width dimension of the first non-joining portion 24a.

In the case of the present embodiment, as an example, the isolation seal portion 26c may be formed with a joint strength relatively weaker than other portions (parts other than the isolation seal portion 26c) in the first main body seal portion 26. As a method of forming the isolation seal portion 26c with a joint strength relatively weaker than that of the other portions in the first main body seal portion 26, for example, the bonding force of the first main body seal portion 26 is locally applied to the isolation seal portion 26c. Examples thereof include a method of weakening and a method of locally narrowing the width dimension of the first main body seal portion 26 at the isolation seal portion 26c.
According to such a configuration, even if a large impact such that the main body seal portion is peeled off is applied to the container 100, the isolation seal portion 26c is preferentially peeled off, so that the container 100 becomes self-supporting. Sufficient sex can be secured.

As shown in FIG. 3, the second non-joining portion 24b is formed to be narrower than, for example, the isolation seal portion 26c.
As a result, the volume of the second filling portion 65 can be made smaller, so that the amount of the filler flowing from the filling portion 60 into the second non-joining portion 24b (second filling portion 65) can be made smaller. , The pressure drop inside the filling portion 60 can be sufficiently suppressed.

In the above description, an example in which the isolation seal portion 26c is formed by the inner peripheral side first main body seal portion 26b formed on the bottom gusset configuration sheet portion 38 has been described, but the isolation seal portion 26c is the first. It may be composed of the inner peripheral side first main body seal portion 26b formed in the seat portion 31, the second seat portion 32, or the top gusset constituent seat portion 39. That is, the isolation seal portion 26c and the second main body seal portion 27 may be arranged on the first planar portion 20a, the second planar portion 20b, or the top gusset portion 14. Therefore, the second non-joining portion 24b may also be arranged on the first planar portion 20a, the second planar portion 20b, or the top gusset portion 14.

<Modification 1 of the first embodiment>
Next, a modification 1 of the first embodiment will be described with reference to FIG. 9A. Note that FIG. 9A schematically shows the structures of the first non-joining portion 24a (filling portion 60), the second non-joining portion 24b, and their surroundings.

In the case of this modification, the main body constituent sheet material 21 has, for example, a plurality of second non-joining portions 24b that are independent of each other.
As shown in FIG. 9A, in the case of this modification, the second main body seal portion 27 is, for example, the outer peripheral side first arranged outside the outer peripheral side first main body seal portion 26a as the isolation seal portion 26c. 2 The main body seal portion 27a and the inner peripheral side second main body seal portion 27b arranged inside the outer peripheral side first main body seal portion 26a as the isolation seal portion 26c are included.
In other words, in the case of this modification, the second main body sealing portion 27 is arranged both inside and outside the first non-joining portion 24a. The second main body seal portion 27 (second main body seal portion 27a on the outer peripheral side) arranged outside the first non-joint portion 24a is arranged between the isolation seal portion 26c and the peripheral edge seal portion 19.
The second non-joining portion 24b has an outer peripheral side second non-joining portion 69a arranged outside the first non-joining portion 24a and an inner peripheral side second arranged inside the first non-joining portion 24a. 2 Non-joining portion 69b and the like.
More specifically, the outer peripheral side second non-joining portion 69a is defined by the outer peripheral side first main body sealing portion 26a and the outer peripheral side second main body sealing portion 27a, and the inner peripheral side second non-joining portion 69b is defined by the outer peripheral side second non-joining portion 69b. It is defined by the inner peripheral side first main body seal portion 26b and the inner peripheral side second main body seal portion 27b.
Also in the case of this modification, each of the first main body seal portion 26 and the second main body seal portion 27 is formed in, for example, a rectangular ring (for example, a rectangular ring with rounded corners). Further, the first main body seal portion 26 and the second main body seal portion 27 are arranged concentrically with each other. Therefore, the outer peripheral side second non-joining portion 69a and the inner peripheral side second non-joining portion 69b are each formed in a substantially rectangular annular shape (for example, a rectangular annular shape with rounded corners).
In the case of this modification, the second main body seal portion 27 is formed on the first surface-shaped portion 20a as an example, and the outer peripheral side second is formed between the outer peripheral side first main body seal portion 26a and the peripheral edge seal portion 19. The main body seal portion 27a is formed.

In the case of this modification, the area of each second non-joining portion 24b is preferably 25% or less of the area of the first non-joining portion 24a, and the total value of the areas of the plurality of second non-joining portions 24b is the first. It is more preferably 25% or less of the area of 1 non-joint portion 24a.

According to this modification, by any chance the isolation seal portion 26c (the outer peripheral side first main body seal portion 26a or the inner peripheral side first main body seal portion 26b) is peeled off and the outer peripheral side second non-joining portion 69a or the inner peripheral side second Even when the filler flows into the non-joining portion 69b, the outflow of the filler from the filling portion 60 to the outside is suitably regulated by the inner peripheral side second main body sealing portion 27b or the outer peripheral side second main body sealing portion 27a. Therefore, it is possible to suppress a decrease in pressure inside the filling portion 60.

The container 100 is, for example, a squeeze container that discharges the contents 18 by a squeeze operation, and does not include a cap portion 70 with a pump.
The container 100 includes, for example, a valve portion 68 as an outside air introduction port arranged inside the second main body seal portion 27b on the inner peripheral side. The valve portion 68 regulates that the gas in the gap between the inner film layer 23 and the inner bag 40 leaks to the outside of the container 100 when the squeeze operation is performed, and the shape of the container body 20 is changed by releasing the squeeze operation. When restoring, outside air is introduced into the above gap.
The valve portion 68 has, for example, an outer opening 67a penetrating the outer film layer 22, an inner opening 67b penetrating the inner film layer 23 at a position offset from the outer opening 67a, and a second inner peripheral side. It is configured to include a third non-bonded portion 68a, which is a closed region defined by the main body sealing portion 27b and in which the inner film layer 23 and the outer film layer 22 are non-bonded. The third non-joining portion 68a communicates the outer opening 67a and the inner opening 67b with each other, and the outer opening 67a communicates the third non-joining portion 68a with the outside of the container 100 with each other. 67b communicates the third non-joining portion 68a with the above-mentioned gap.
When the user performs a squeeze operation on the container body 20, the squeezing force is also transmitted to the inner bag 40 inside the container body 20, so that the volume of the inner bag 40 contracts and the contents 18 of the storage area 17 spit out. It is discharged to the outside of the container 100 through the outlet 76.
Here, by performing the squeeze operation while closing the outer opening 67a with a finger or the like, it is regulated that the gas in the above gap leaks to the outside of the container 100. It can be transmitted to the inner bag 40 inside the container body 20 via the gas in the gap. Therefore, the squeezing force applied to the container body 20 can be more efficiently transmitted to the inner bag 40, so that the dischargeability of the content 18 in the storage area 17 of the inner bag 40 is improved.
On the other hand, when the user finishes the squeeze operation (when the squeeze operation is released), the shape of the container body 20 is restored (that is, it swells to the original shape), and at that time, the outside air is released through the valve portion 68 as described above. It is taken into the gap. That is, the volume of outside air corresponding to the volume of the accommodating region 17 reduced by the squeeze operation is replenished in the gap through the outer opening 67a, the third non-joining portion 68a, and the inner opening 67b in this order. Therefore, even if the squeeze operation is repeated, the content 18 can be discharged from the container 100 with the same squeeze operability as in the initial state.
The inner peripheral side second main body seal portion 27b is formed in the form in which the gap between the inner film layer 23 and the inner bag 40 and the outside air introduction port for communicating the outside air are formed in the first surface-shaped portion 20a. If not, if the inner peripheral side first main body seal portion 26b is peeled off, the filler in the filling portion 60 may flow out to the outside through the outside air introduction port. As in this modification, the inner peripheral side second main body sealing portion 27b is formed between the outside air introduction port and the inner peripheral side first main body sealing portion 26b, and the inner peripheral side second non-joining portion 69b exists. Therefore, it is possible to suitably regulate the outflow of the filler from the filling portion 60 to the outside.

<Modification 2 of the first embodiment>
Next, a modification 2 of the first embodiment will be described with reference to FIG. 9B. Note that FIG. 9B schematically shows the structures of the first non-joining portion 24a (filling portion 60), the second non-joining portion 24b, and their surroundings.

Also in the case of this modification, the main body constituent sheet material 21 has, for example, a plurality of second non-joining portions 24b (outer peripheral side second non-joining portion 69a and inner peripheral side second non-joining portion 69b) independent of each other. Have.
As shown in FIG. 9B, also in the case of the present modification, the second main body seal portion 27 is, for example, the outer peripheral side second main body arranged outside the isolation seal portion 26c, as in the modification 1. The seal portion 27a and the inner peripheral side second main body seal portion 27b arranged inside the isolation seal portion 26c are included. In other words, also in the case of this modification, the second main body sealing portion 27 is arranged both inside and outside of the first non-joining portion 24a. Further, the second main body seal portion 27 (second main body seal portion 27a on the outer peripheral side) arranged outside the first non-joint portion 24a is arranged between the isolation seal portion 26c and the peripheral edge seal portion 19. ..
The second non-joining portion 24b has an outer peripheral side second non-joining portion 69a arranged outside the first non-joining portion 24a and an inner peripheral side second arranged inside the first non-joining portion 24a. 2 Non-joining portion 69b and the like.
Further, the outer peripheral side first main body seal portion 26a and the inner peripheral side first main body seal portion 26b are each formed in a substantially rectangular ring shape.
However, the outer peripheral side second main body seal portion 27a is arranged at each of the four corners of the outer peripheral side first main body seal portion 26a, and the inner peripheral side second main body seal portion 27b is the inner peripheral side first main body seal portion 26b. They are placed in each of the four corners.
More specifically, for example, one end of the outer peripheral side second main body seal portion 27a is connected to one end of the arcuate portion at the corner portion of the outer peripheral side first main body seal portion 26a, and the outer peripheral side second main body seal portion 27a is connected. The other end of the arc is connected to the other end of the arcuate portion.
Further, one end of the inner peripheral side second main body seal portion 27b is connected to one end of the arcuate portion at the corner of the inner peripheral side first main body seal portion 26b, and the other one of the inner peripheral side second main body seal portion 27b. The end is connected to the other end of the arcuate portion.
In this way, in the case of this modification, four outer peripheral side second non-joining portions 69a and four inner peripheral side second non-joining portions 69b are formed.
In this way, the second non-joining portion 24b is formed in a region where the first main body sealing portion 26 and the second main body sealing portion 27 are connected and defined.
Further, in the case of this modification, the first main body sealing portion 26 is formed in a polygonal annular shape, and the second non-joining portion 24b is arranged at the corner portion of the first main body sealing portion 26. More specifically, the first main body sealing portion 26 is formed in a rectangular annular shape, and the second non-joining portion 24b is formed at a corner portion of the first main body sealing portion 26.
In the case of this modification as well, the area of each second non-joining portion 24b (the outer peripheral side second non-joining portion 69a and the inner peripheral side second non-joining portion 69b) is 25 of the area of the first non-joining portion 24a. % Or less, and more preferably, the total value of the areas of the plurality of second non-joining portions 24b is 25% or less of the area of the first non-joining portion 24a.
Even in the case of this modification, the second non-joining portion 24b is formed at the four corners of the circular filling portion where the strongest force is considered to be applied when a strong impact is applied to the container 100 due to dropping or the like. Even if the isolation seal portion 26c (the corner portion of the outer peripheral side first main body seal portion 26a or the corner portion of the inner peripheral side first main body seal portion 26b) is peeled off, the filler inside the filling portion 60 Is preferably regulated by the second main body sealing portions 27a and 27b.

<Modification 3 of the first embodiment>
Next, a modification 3 of the first embodiment will be described with reference to FIG. 9 (c). Note that FIG. 9C schematically shows the structures of the first non-joining portion 24a (filling portion 60), the second non-joining portion 24b, and their surroundings.

Also in the case of this modification, the main body constituent sheet material 21 has, for example, a plurality of second non-joining portions 24b that are independent of each other.
More specifically, as shown in FIG. 9C, the second main body seal portion 27 extends in the front-rear direction inside the rectangular annular isolation seal portion 26c, and the end portion is connected to the isolation seal portion 26c. It is formed in a grid pattern by a plurality of vertical line portions extending in the left-right direction and a horizontal line portion extending in the left-right direction and having an end portion connected to the isolation seal portion 26c. In other words, in the main body constituent sheet material 21, a plurality of gaps (squares) surrounded by the isolation seal portion 26c and the vertical line portion and the horizontal line portion are formed, and the plurality of gaps are each second. It constitutes a non-joint portion 24b. Therefore, in the case of this modification, the plurality of second non-joining portions 24b are adjacent to each other via the second main body sealing portion 27 (vertical line portion and horizontal line portion).
As described above, also in the case of this modification, the first main body sealing portion 26 is formed in a polygonal annular shape, and the second non-joining portion 24b is arranged at the corner portion of the first main body sealing portion 26. More specifically, the first main body sealing portion 26 is formed in a rectangular annular shape, and the second non-joining portion 24b is formed at a corner portion of the first main body sealing portion 26.
More specifically, in the present modification, the second main body seal portion 27 has one or a plurality of vertical lines extending in one direction and one or a plurality of horizontal lines extending intersecting the vertical lines. The vertical line portion and the horizontal line portion are connected to the first main body seal portion 26 (isolation seal portion 26c). A plurality of second non-joining portions are formed in a region defined by connecting the first main body sealing portion 26 (isolating sealing portion 26c) and the second main body sealing portion 27 (vertical line portion and horizontal line portion). There is.
The dimensions of the plurality of second non-joining portions 24b (plural gaps) may be equal to each other, or may be different in the front-rear direction or the left-right direction.
In the case of this modification, the area of each second non-joining portion 24b adjacent to the isolation seal portion 26c is preferably 25% or less of the area of the first non-joining portion 24a, and a plurality of second non-joining portions 24a are preferably formed. It is more preferable that the total area of the portions 24b is 25% or less of the area of the first non-joining portion 24a.
In this modification, a plurality of second non-joining portions 24b are continuously present (in a state of being separated from each other via the second main body sealing portion 27) over the entire circumference of the annular isolation seal portion 26c. Therefore, even if the isolation seal portion 26c is peeled off, the pressure drop in the filling portion 60 can be further suppressed.

[Second Embodiment]
Next, the second embodiment will be described with reference to FIG.
The container 100 according to the present embodiment is different from the container 100 according to the first embodiment in the following description, and is otherwise the same as the container 100 according to the first embodiment. It is configured.
As shown in FIG. 10, in the case of the present embodiment, the container 100 does not include the inner bag 40. The container body 20 constitutes the storage area 17. That is, in the peripheral seal portion 19 (see FIG. 1 and the like), the container main body 20 is formed and the accommodating area 17 is formed by joining a part of the inner film layer 23 of the main body constituent sheet material 21 to each other. ..

The present invention is not limited to the above-described embodiment, but also includes various modifications, improvements, and the like as long as the object of the present invention is achieved.

For example, in the above, the example in which the container 100 is a pump container having the pump portion 72 has been described, but the container 100 may be other than the pump container. For example, the container 100 may have a cap (screw cap or the like) that closes the pouring cylinder portion 15a.
In this case, the container 100 may have a bottom gusset portion 13 and the discharge port may be self-supporting in an upward posture, or the discharge port may be self-supporting in a downward posture (inverted posture). You may.

Further, the various components of the container 100 do not have to be individually independent, and a plurality of components are formed as one member, and one component is formed of a plurality of members. It is permissible that one component is part of another, that part of one component overlaps with some of another component, and so on.

11 Body 13 Bottom gusset 14 Top gusset 15 Spout member 17 Containment area 18 Contents 19 Peripheral seal 20 Container body 20a First surface 20b Second surface 21 Body composition Sheet material 22 Outer film layer 23 Inside Film layer 24 Non-joining part 24a First non-joining part 24b Second non-joining part 26 First main body sealing part 26c Isolation sealing part 27 Second main body sealing part 28 Main body peripheral sealing part 31 First sheet part 32 Second sheet part 38 Bottom gusset constituent sheet 39 Top gusset constituent sheet 40 Inner bag 40a First main surface 40b Second main surface 41 Inner bag constituent sheet 41a Seal boundary line 42 Inner bag seal 43 Inner / outer seal 51 Container constituent sheet 52 Periphery Seal 60 Filling part 61 1st body filling part 62 2nd body filling part 63 Bottom filling part 64 Top filling part 65 2nd filling part 69a Outer peripheral side 2nd non-joining part 69b Inner peripheral side 2nd non-joining part 70 Cap part 71 Mounting part 72 Pump part 73 Head part 74 Support tubular part 75 Nozzle part 76 Discharge port 77 Dip tube 100 Container 200 Center of gravity

Claims (22)

A container including one or a plurality of sheet materials including a main body constituent sheet material in which a plurality of film layers including an inner film layer and an outer film layer are laminated.
A storage area for accommodating the contents and
A container body that is composed of the main body constituent sheet material and surrounds the storage area, and a container main body.
With
The main body constituent sheet material is
The first non-bonded region is defined by the first main body seal portion in which the inner film layer and the outer film layer are bonded, and the inner film layer and the outer film layer are not bonded. At the joint,
It is a closed region defined by a second main body sealing portion in which the inner film layer and the outer film layer are joined, and the first main body sealing portion inside or outside the first non-joining portion. , A second non-bonded portion in which the inner film layer and the outer film layer are non-bonded,
Have,
A filler is sealed between the inner film layer and the outer film layer in the first non-joint portion to form the filler.
When the isolation seal portion, which is a portion separating the filling portion and the second non-joining portion in the first main body sealing portion, is peeled off, the filler flows from the filling portion into the second non-joining portion. A container that is possible. The isolation seal portion is formed in an annular shape.
The container according to claim 1, wherein the second main body seal portion is arranged inside the isolation seal portion. The container according to claim 2, wherein the second main body seal portion is formed in an annular shape. The container according to claim 3, wherein the center of gravity of the container is located inside the second main body seal portion in a plan view. Even after the isolation seal portion is peeled off and the filler flows from the filling portion into the second non-joining portion, the center of gravity of the container is located inside the second main body sealing portion in a plan view. The container according to claim 4. The container according to claim 1 or 2, wherein the center of gravity of the container is located within the formation region of the second main body seal portion in a plan view. Even in a state after the isolation seal portion is peeled off and the filler flows from the filling portion into the second non-joining portion, the center of gravity of the container remains within the formation region of the second main body sealing portion in a plan view. The container according to claim 6, which is located. The container body has a body portion and a bottom gusset portion, and has a body portion and a bottom gusset portion.
The filling portion includes a bottom filling portion formed in a circumferential shape along the peripheral edge of the bottom gusset portion.
The container according to any one of claims 2 to 7, wherein the second main body sealing portion and the second non-joining portion are arranged inside the bottom filling portion. The body has a wider width than the front and rear dimensions.
The container according to claim 8, wherein the second non-joint portion has a front-rear dimension larger than a width dimension. The container according to claim 1, wherein the second non-joining portion is formed in a region defined by connecting the first main body sealing portion and the second main body sealing portion. The container according to claim 10, wherein the first main body seal portion is formed in a rectangular ring shape, and the second non-joint portion is formed at a corner portion of the first main body seal portion. The second main body seal portion has one or a plurality of vertical line portions extending in one direction and one or a plurality of horizontal line portions extending intersecting the vertical line portions, and the second main body sealing portion has the second main body sealing portion. The container according to claim 10, wherein a plurality of non-joining portions are formed in a region defined by connecting the vertical line portion, the horizontal line portion, and the first main body seal portion. The one or more sheet materials are bent along a bending line, and at least a part of the one or more sheet materials at the peripheral edge of the innermost sheet material is bonded to each other. The container according to claim 1, wherein the second main body seal portion is arranged between the isolation seal portion and the peripheral seal portion. The container according to any one of claims 1 to 13, wherein the area of the second non-joining portion is 25% or less of the area of the first non-joining portion. The container according to any one of claims 1 to 14, wherein the main body constituent sheet material has a plurality of the second non-joining portions that are independent of each other. The container according to claim 15, wherein the total value of the areas of the plurality of second non-joining portions is 25% or less of the area of the first non-joining portion. The container according to any one of claims 1 to 16, wherein the width dimension of the second non-joint portion is equal to or less than the width dimension of the first non-joint portion. The container according to any one of claims 1 to 17, wherein the width dimension of the second non-joint portion is half or less of the width dimension of the first non-joint portion. The container according to any one of claims 1 to 18, wherein the isolation seal portion is formed with a joint strength relatively weaker than that of the other portion in the first main body seal portion. The container according to any one of claims 1 to 19, wherein the second non-joint portion is formed narrower than the isolation seal portion. The container according to any one of claims 1 to 20, which has a discharge port for discharging the contents contained in the storage area. Further provided with an inner bag arranged inside the container body,
The container according to any one of claims 1 to 21, wherein the inner bag is made of an inner bag constituent sheet material which is the innermost sheet material of the one or a plurality of sheet materials.

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