WO2020004387A1 - Container - Google Patents

Abstract

The present invention comprises: a cylindrical member (12) that constitutes a circumferential surface part (12d); a top surface member (11) that is provided at a top surface part (11a); and a bottom surface member (13) that is provided at a bottom surface part (13a). A discharge port (14a) is provided to at least one of the top surface part (11a) and the bottom surface part (13a). The cylindrical member (12) has a circumferential surface junction part at which a sealant layer and a joining layer of an innermost surface face and are joined in the shape of a cylinder. The top surface member (11) has a top surface junction part (12a) at which a sealant layer of the top surface member (11) and the sealant layer of the cylindrical member (12) face and are joined. The bottom surface member (13) has a bottom surface junction part (12c) at which a sealant layer of the bottom surface member (13) and the sealant layer of the cylindrical member (12) face and are joined. The cylindrical member (12) and the bottom surface member (13) are formed from a flexible laminate film. A free-standing barrier layer of the bottom surface member (13) comprises an aluminum foil that is 7–200 μm thick.

Description

container

The present invention relates to a container having autonomy.
This application claims priority based on Japanese Patent Application No. 2018-119969 filed on June 25, 2018 and Japanese Patent Application No. 2019-107166 filed on June 7, 2019, The contents are incorporated herein.

Patent Literature 1 discloses a cylindrical housing cylinder having an open end at a distal end and a base end, a bottom member provided at an open end at a base end, and a top plate member provided at an open end at a distal end. , And a cartridge for a flowable substance in which a flowable substance is filled.

In Patent Literature 2, annular torso-side end joints formed by bending inward are formed at upper and lower ends of a torso member, respectively, and outer peripheral portions of upper and lower closing members are joined to upper and lower torso-side end joints, respectively. Further, a pouch container in which upper and lower ends of a body member are closed by upper and lower closing members is described.

JP 2013-56692 A JP 2015-20787 A

In the fluid substance cartridge described in Patent Document 1, the cylindrical housing cylinder is formed of a laminated film having gas barrier properties and flexibility, and substantially the entire outer surface of the top plate member is formed of a laminated film having gas barrier properties. The exterior film is thermally welded, and the bottom member is formed from a laminated film having gas barrier properties, so that when the entire amount is discharged, substantially the entire area of the cylindrical housing cylinder can be crushed. Further, paragraph 0037 of Patent Document 1 discloses an aluminum film on which aluminum is deposited as a gas barrier film suitable for a laminated film constituting each member.

The pouch container described in Patent Literature 2 is excellent in self-standing stability and shape retention, is excellent in design, can be reduced in volume, and can sufficiently secure liquid tightness between the body member and the closing member. However, there is a problem that the form of the body-side end joint is complicated and the manufacture is not easy.

軟 Thus, the soft packaging container mainly composed of the laminated film is lightweight and excellent in disposal, but the loading efficiency of the container filled with the contents is poor, and the container strength such as the drop strength and the bag breaking strength is low. In addition, containers such as paper cartons and brick packs (registered trademark), which are widely used at present, are stable in shape, have excellent loading efficiency, and are light in weight. Since the interlayer strength of the base material to be formed is inferior, depending on the shape of the container, there is a problem that the base material is weak against impacts such as dropping. In addition, paper containers have poor stab resistance, and are inferior in design such as gloss to appearance as compared with film containers. On the other hand, blow bottles and aluminum cans have high strength, but become bulky when discarded.

The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a self-supporting soft packaging container capable of achieving both strength and disposal.

According to a first aspect of the present invention, there is provided a cylindrical member forming a peripheral portion between a top surface portion and a bottom surface portion, a top surface member provided on the top surface portion, and a bottom member provided on the bottom surface portion. A spout is provided on at least one of the top surface portion or the bottom surface portion, and the tubular member has an innermost sealant layer, a joining layer joined to the sealant layer, the sealant layer, and the sealant layer. A top surface member comprising a laminated film having a barrier layer laminated between the top surface member and a sealing layer formed by joining the sealant layer and the bonding layer in a cylindrical shape so as to face each other; Comprises a laminate having a sealant layer, and has a top surface joining portion in which the sealant layer of the top member and the sealant layer of the cylindrical member are joined to face each other, and the bottom member is a sealant layer. And the base material layer, the sealant layer and the front It is made of a laminated film having a barrier layer laminated between the base material layer, and has a bottom joint portion in which the sealant layer of the bottom member and the sealant layer of the tubular member are joined to face each other, The tubular member and the bottom member are formed of a flexible laminated film, and the barrier layer of the bottom member is made of aluminum foil having a thickness of 7 to 200 μm, thereby providing a self-supporting container.

In the bottom surface joining portion, a peripheral portion of the bottom surface member is bent with respect to the bottom surface portion, and a surface that is inward at the bottom surface portion is joined to an inner surface of a lower end portion of the tubular member. The barrier layer of the bottom member may be made of an aluminum foil having a thickness of 15 to 200 μm.
In the bottom joint portion, a peripheral edge of the bottom member is bent with respect to the bottom portion, and a surface that is outside at the bottom portion is joined toward an inner surface of the tubular member, and the bottom portion is The bottom portion may be located above the lower end of the tubular member so that the bottom portion does not contact the installation surface, and the barrier layer of the bottom member may be made of an aluminum foil having a thickness of 15 to 200 μm. .
The top surface member may be composed of a laminate having the sealant layer, a base material layer, and a barrier layer laminated between the sealant layer and the base material layer.
The bottom member may have a fold line that traverses the bottom surface that forms the inside of the bottom joint.
The cylindrical member, the top member, the bottom member, and the spout may each have at least one or more printed patterns.
A cap may be provided at the spout.
The diameter of the tubular member may be in the range of 10 to 200 mm.

According to a second aspect of the present invention, there is provided a cylindrical member forming a peripheral portion between a top surface portion and a bottom surface portion; a top surface member provided on the top surface portion and joined to the cylindrical member; A bottom member provided on the portion and joined to the tubular member, wherein the tubular member is formed of a first laminate having a total thickness of 50 to 600 μm, and an outer diameter of the tubular member is: 30 to 150 mm, the top surface member and the bottom surface member are formed of a second laminate having a total thickness of 70 to 350 μm, and the second laminate is formed on both sides in the thickness direction of an aluminum foil having a thickness of 40 μm or more. The present invention also provides a container characterized by being a laminate of three or more layers each having at least one resin layer.

The first laminate may be composed of three or more laminates each having at least one resin layer on both sides in the thickness direction of the aluminum foil.
A peripheral portion of the bottom member may be bent with respect to the bottom portion and joined to a lower end of the tubular member.
The thickness of the aluminum foil included in the second laminate may be 200 μm or less.

According to the present invention, it is possible to provide a self-supporting soft packaging container capable of achieving both strength and disposal.

It is a perspective view of a container of a 1st embodiment in a 1st mode. FIG. 2 is a sectional view taken along the line II-II in FIG. 1. It is a perspective view of a container of a 2nd embodiment in a 1st mode. FIG. 4 is a sectional view taken along the line IV-IV in FIG. 3. It is sectional drawing which illustrates the joining part of a cylindrical member and a top member or a bottom member. It is sectional drawing which shows the modification of the structure which integrated the spout in the top surface member in the 1st aspect. It is sectional drawing which shows the 1st modification of the structure which joined the bottom member to the cylindrical member in 1st aspect. It is sectional drawing which shows the 2nd modification of the structure which joined the bottom member to the cylindrical member in 1st aspect. FIG. 13 is a perspective view showing a first modification of the configuration in which the folding line is provided on the bottom surface in the first embodiment. FIG. 13 is a perspective view showing a second modification of the configuration in which the folding line is provided on the bottom surface in the first embodiment. FIG. 15 is a perspective view showing a third modification of the configuration in which the folding line is provided on the bottom surface in the first embodiment. FIG. 16 is a perspective view showing a fourth modification of the configuration in which the folding line is provided on the bottom surface in the first embodiment. It is a perspective view of a container of a 1st embodiment in a 2nd mode. FIG. 14 is a sectional view taken along the line II-II in FIG. 13. It is sectional drawing which shows the modification of the structure which joined the bottom member to the cylindrical member in 2nd aspect.

Hereinafter, the present invention will be described based on preferred embodiments with reference to the drawings.

<First aspect>
FIGS. 1 and 2 illustrate the container 10 of the first embodiment in the first aspect, and FIGS. 3 and 4 illustrate the container 20 of the second embodiment in the first aspect. These containers 10 and 20 are provided on top surface members 11 and 21 provided on top surface portions 11a and 21a, cylindrical members 12 and 22 constituting peripheral surface portions 12d and 22d, and bottom surface portions 13a and 23a. The storage units 16 and 26 are surrounded by the bottom members 13 and 23.

容器 The containers 10 and 20 have autonomy. The self-sustainability of the containers 10 and 20 is at least a property that the containers 10 and 20 can self-support in a state where the contents are filled and sealed. Furthermore, it is preferable that the container portions 16 and 26 that are not filled with the contents can be self-standing even when the spouts 14a and 24a are opened and the spouts 14a and 24a are opened. Moreover, it is preferable that the tubular members 12 and 22 can be self-standing in a single state separated from the top members 11 and 21 and the bottom members 13 and 23.

(4) The top surfaces 11a and 21a become upper surfaces when they become independent, and the bottom surfaces 13a and 23a become lower surfaces when they become independent. The peripheral surface portions 12d and 22d are formed between the top surface portions 11a and 21a and the bottom surface portions 13a and 23a so as to cover a circumferential direction intersecting the vertical direction. The storage portions 16 and 26 of the containers 10 and 20 can be formed of three parts each of which is composed of one of the top members 11 and 21, the cylindrical members 12 and 22, and the bottom members 13 and 23.

The cylindrical members 12 and 22 have peripheral surface joining portions 12b and 22b which are joined in a cylindrical shape with both surfaces in the thickness direction facing each other. In addition, the top surface members 11 and 21 and the cylindrical members 12 and 22 are joined by top surface joining portions 12a and 22a. The bottom members 13, 23 and the tubular members 12, 22 are joined by bottom joints 12c, 22c.

The top surface joints 12a and 22a are formed by bending the peripheral edges 11b and 21b of the top members 11 and 21 with respect to the top surfaces 11a and 21a, and facing the inner surfaces of the tubular members 12 and 22. The bottom joints 12c and 22c are formed by bending the peripheral portions 13b and 23b of the bottom members 13 and 23 with respect to the bottom surfaces 13a and 23a and facing the inner surfaces of the tubular members 12 and 22.

、 In the case of the container 10 of the first embodiment in the first mode, the top surface portion 11a and the bottom surface portion 13a are substantially flat. In the first embodiment, the peripheral portions 11 b and 13 b of the top member 11 and the bottom member 13 are formed such that the inner surface of the top member 11 a and the bottom surface 13 a faces the inner surface of the tubular member 12. Each is joined to both ends in the vertical direction. In this case, the barrier layer of the bottom member 11 may be made of an aluminum foil having a thickness of 15 to 200 μm.

In the case of the container 20 of the second embodiment in the first aspect, the bottom surface 23a is substantially flat, and the peripheral portion 23b of the bottom member 23 faces the inner surface of the bottom surface 23a toward the inner surface of the tubular member 22. The point of joining is the same as in the first embodiment. In the second embodiment, the point that the top surface portion 21a has a conical surface shape and the peripheral edge portion 21b of the top surface member 21 is joined with the outer surface of the top surface portion 21a facing the inner surface of the tubular member 22 is as follows. Different from the first embodiment.

注 At least one of the top surfaces 11a, 21a or the bottom surfaces 13a, 23a is provided with a spout 14a, 24a. The outlets 14a and 24a may be narrow or wide. When opening the openings 11c and 21c, a mark may be provided to control the size and position of the openings. The spout may be integrated by molding the top members 11 and 21 or the bottom members 13 and 23.

In the case of the above embodiment, the spout members 14, 24 having the spouts 14a, 24a and the flange portions 14b, 24b are formed as members different from the top members 11, 21 and the bottom members 13, 23. . Spouts 14a, 24a are arranged in openings 11c, 21c provided substantially at the center of the top members 11, 21, and the flange portions 14b, 24b are joined to the inner surfaces of the top surfaces 11a, 21a.

キ ャ ッ プ Caps 15 and 25 are provided in the spouts 14a and 24a. Male threads may be provided on the outer surfaces of the spouts 14a and 24a, and female threads may be provided on the inner surfaces of the caps 15 and 25, and the caps 15 and 25 may be resealably connected. In addition to the screws, the caps 15, 25 can be connected to the spouts 14a, 24a by bonding, thin portions, fitting, or the like. The resealability of the caps 15, 25 is not essential; for example, after removing the caps 15, 25 from the spouts 14a, 24a, the joints of the caps 15, 25 to the spouts 14a, 24a are irreversibly broken. Thus, the original connection state does not have to be reproduced.

FIG. 5 shows an example of a joint between the tubular member and the top or bottom member. Here, a bottom surface joint where the bottom member 31 and the tubular member 32 are joined is illustrated, but a top joint where the top member and the tubular member are joined can also have the same configuration. The structure of the container 30 shown in FIG. 5 can be adopted for both the container 10 of the first embodiment and the container 20 of the second embodiment.

The top or bottom member 31 can be composed of a laminate having a sealant layer 31a, a base layer 31c, and a barrier layer 31b laminated between the sealant layer 31a and the base layer 31c. The laminate constituting the top member or the bottom member 31 may be a laminated film which becomes flat in a developed state, or a laminated molded body having a three-dimensional molded portion.

The tubular member 32 is composed of a laminate having an innermost sealant layer 32a, a bonding layer 32c bonded to the sealant layer 32a, and a barrier layer 32b laminated between the sealant layer 32a and the bonding layer 32c. can do. The laminated body forming the tubular member 32 is preferably a laminated film that becomes flat when the peripheral surface joint is separated and developed.

The top surface bonding portion or the bottom surface bonding portion can be configured such that the sealant layer 31a of the top surface member or the bottom surface member 31 and the sealant layer 32a of the tubular member 32 face each other. Although not shown in FIG. 5, the peripheral joints 12b and 22b of the tubular members 12 and 22 shown in FIG. 1 or FIG. 3 have the sealant layer 32a and the joining layer 32c of the tubular member 32 facing each other. Can be configured.

It is preferable that the cylindrical members 12, 22, 32 and the bottom members 13, 23, 31 are made of a flexible laminated film. Thereby, the tubular members 12, 22, 32 and the bottom members 13, 23, 31 have flexibility, and when the containers 10, 20, 30 of the present embodiment are discarded, the containers 10, 20, 30 are folded. Then, they can be crushed or grouped together. Further, the top surface members 11 and 21 may be made of a laminated film having flexibility. The flexible laminated film preferably has a total thickness of not more than 500 μm, for example, of about 350 μm or about 200 μm, for example.

バ リ ア The barrier layer included in the bottom members 13, 23, 31 is preferably made of aluminum foil having a thickness of 7 to 200 μm. Thereby, even if the containers 10, 20, 30 of the present embodiment are soft packaging containers having autonomy, the container strength can be maintained. The thickness of the barrier layer included in the bottom members 13, 23, 31 is preferably 9 to 150 μm, more preferably 12 to 120 μm, and still more preferably 15 to 100 μm.

As a material constituting the sealant layer included in each of the top surface members 11 and 21, the tubular members 12, 22 and 32, and the bottom members 13, 23 and 31, for example, polyethylene (PE), polypropylene (PP), etc. Examples include at least one or more of a polyolefin resin, a polyester resin such as polyethylene terephthalate (PET), a cyclic olefin resin such as a cycloolefin polymer (COP) and a cycloolefin copolymer (COC), an adhesive resin, and a coating agent. .

バ リ ア As the barrier layer included in the tubular members 12, 22, 32, an aluminum foil or an aluminum vapor-deposited film is preferable. The barrier layer included in the top members 11 and 21 is preferably an aluminum foil, like the barrier layers included in the bottom members 13, 23 and 31.

接合 The joining layer included in the tubular members 12, 22, 32 is not particularly limited as long as it can be joined to the sealant layer, but a thermoplastic resin that can be joined by heat welding is preferable. Examples of a material forming the bonding layer include polyolefin resins such as polyethylene (PE) and polypropylene (PP), polyester resins such as polyethylene terephthalate (PET), cycloolefin polymer (COP), and cycloolefin copolymer (COC). And at least one kind of cyclic olefin resin, adhesive resin, coating agent and the like.

ナ イ ロ ン Nylon (aliphatic polyamide) is preferable as a material constituting the base material layers included in the top members 11 and 21 and the bottom members 13, 23 and 31. The thickness of the base material layer is, for example, 5 to 50 μm, and more preferably 10 to 30 μm. A thermoplastic resin such as polyethylene may be further laminated on the outside of the base material layer.

The tubular members 12, 22, 32 may be cylindrical, or may be triangular, square, pentagonal, or other rectangular cylinders. The diameter of the tubular members 12, 22, 32 is, for example, in the range of 5 to 250 mm, and preferably in the range of 10 to 200 mm. Here, the diameter when the cylindrical member is a rectangular cylindrical shape is the distance between the apex and the apex facing each other, the side and the side, or the apex and the side, and when these are two or more, the minimum value and Preferably, the maximum value is within the above range. The diameter of the tubular members 12, 22, 32 is not particularly limited, but may be, for example, 20 mm, 50 mm, 100 mm, 150 mm, or the like.

成形 The method of forming the top members 11, 21 and the bottom members 13, 23, 31 having the spouts 14a, 24a may be injection molding, compression molding, blow molding, extrusion molding, air pressure molding, draw molding, or the like. The top members 11, 21 and the bottom members 13, 23, 31 may be directly formed on the cylindrical members 12, 22. After the formation, heat welding, ultrasonic welding, high frequency welding, adhesive, laser welding, or the like is used. You may join. The sealant layers of the top members 11, 21 or the bottom members 13, 23, 31 and the sealant layers of the tubular members 12, 22, 32 may be directly joined. The top members 11, 21 or the bottom members 13, 23, 31 and the tubular members 12, 22, 32 may be joined via an adhesive or a resin layer.

When the spout members 14 and 24 include the flange portions 14b and 24b having the same resin layer as the sealant layer, the flange portions 14b and 24b are connected to the sealant layers of the top surface members 11 and 21 or the bottom surface members 13, 23 and 31. It may be directly joined. The top members 11, 21 or the bottom members 13, 23, 31 and the spout members 14, 24 may be joined via an adhesive or a resin layer.

FIGS. 6 to 12 show various modifications of the first embodiment. In these modified examples, the top surface portion 41a of the top surface member 41, the peripheral edge portion 41b, the top surface joining portion 42a, the peripheral surface joining portion 42b of the tubular member 42, the bottom surface portion 43a of the bottom member 43, the peripheral edge portion 43b, and the bottom surface joining The unit 42c can be configured in the same manner as the corresponding configuration of the first embodiment or the second embodiment, and redundant description will be omitted.

で は In the modification shown in FIG. 6, the spout 41c is integrated with the top surface member 41. The outlet 41c may be provided with a means for closing the outlet, similarly to the caps 15, 25 and the like in the first and second embodiments.

In the modification shown in FIG. 7, the peripheral portion 43 b of the bottom member 43 is joined such that the outer surface of the bottom portion 43 a faces the inner surface of the tubular member 42.
In the modification shown in FIG. 8, the bottom surface 43a is located above the lower end of the tubular member 42, so that the bottom surface 43a does not contact the installation surface. Thereby, the rubbing of the bottom surface 43a by the installation surface can be suppressed. In the modification shown in FIG. 8, the barrier layer of the bottom member 43 may be made of an aluminum foil having a thickness of 15 to 200 μm.

お よ び In the modification shown in FIGS. 9 and 10, the bottom member 43 has the folding lines 44 and 46 so as to cross the bottom surface 43a constituting the inside of the bottom joint 42c. The fold line 44 shown in FIG. 9 reaches the peripheral edge 43b of the bottom member 43, and the fold line 46 shown in FIG. 10 is apart from the peripheral edge 43b of the bottom member 43. By applying a force 45 from both sides so as to intersect the length direction of the folding lines 44 and 46, the bottom surface 43a can be easily bent. The shape of the folding lines 44 and 46 may be linear or curved. The number of the folding lines 44 and 46 may be one or two or more. Two or more fold lines may be provided in parallel with each other.

In the modification shown in FIG. 11, a plurality of fold lines 47 crossing the bottom surface 43a are arranged so as to cross each other. In the modification shown in FIG. 12, a plurality of fold lines 48 are radially arranged on the bottom surface 43a. In this case, it is easy to bend the bottom surface 43a by applying a force to the plurality of folding lines 47 and 48 in appropriate directions. The number of folding lines 47 and 48 can be increased or decreased as appropriate.
9 to 12, the configuration of the bottom member 43 having the folding lines 44, 46, 47, and 48 on the bottom surface 43a is the same as that of FIGS. 1 to 4, but the structure of the bottom member 43 shown in FIGS. Folding lines 44, 46, 47, 48 may be provided on the bottom surface 43a.

In the first aspect, the properties of the contents contained in the containers of the above embodiments and modifications are arbitrary such as liquids, solids, powders, granules, and mixtures of two or more of these. The type of the contents is not particularly limited, and includes beverages, foods, seasonings, cosmetics, pharmaceuticals, detergents, adhesives, household goods, industrial products, and the like. One or two or more functionalities such as an oxygen absorbing function, an odor absorbing function, and a non-adsorbing function may be provided to each member constituting the container. The tubular member, top member, bottom member, and spout may each have at least one or more printed patterns. Each member constituting the container is not limited to a resin, and may be a laminate or a mixture of different materials such as paper, cloth, nonwoven fabric, and fiber.

As described above, the first aspect of the present invention has been described based on the preferred embodiments and modified examples. However, the present invention is not limited to the above-described embodiments and modified examples, and various modifications may be made without departing from the gist of the present invention. Can be modified. Modifications include additions, substitutions, omissions, and other changes of components in each embodiment and each modification. Also, the components used in two or more embodiments or modified examples can be appropriately combined. Further, addition, replacement, omission, and other changes of the constituent elements in each embodiment and each modification of the second aspect described below are included.

The spout is not limited to a three-dimensional molded product having a cylindrical spout and a flange portion along the surface of the top surface member or the bottom member, and may have any structure as long as it functions as an outlet for contents. Further, the means for closing the spout is not limited to the cap, and may have any structure. For example, the opening of the top member may be used as a spout, a sealing film may be attached to the opening, and a straw may be inserted into the film to suck out the contents. Although a spout can be provided in the tubular member, the tubular member may have a structure without a spout from the viewpoint of the container's autonomy and strength.

<Second aspect>
13 and 14 illustrate an embodiment of the container 100. FIG. The container 100 includes a top part 111 provided on the top part 111a, a cylindrical member 112 constituting a peripheral part 112d, and a housing part 114 surrounded by a bottom part 113 provided on the bottom part 113a. ing.

(4) The container 100 has autonomy. The self-supporting property of the container 100 is a property that can be self-supporting at least in a state where the contents are filled and sealed. Furthermore, even if the storage section 114 that is not filled with the contents is empty, it can stand alone. Further, it is preferable that the tubular member 112 be able to stand on its own in a single state separated from the top member 111 and the bottom member 113.

(4) The top surface portion 111a becomes the upper surface when standing alone, and the bottom surface portion 113a becomes the lower surface when standing alone. The peripheral surface portion 112d is formed between the top surface portion 111a and the bottom surface portion 113a so as to cover a circumferential direction intersecting the vertical direction. The accommodating portion 114 of the container 100 can be composed of three parts in which one top surface member 111, one cylindrical member 112, and one bottom surface member 113 are combined. In addition, depending on the use or purpose of the container 100, it is not specified which is the upper surface or the lower surface, and the installation may be allowed such that the top surface portion 111a is the lower surface and the bottom surface portion 113a is the upper surface.

The cylindrical member 112 has a peripheral surface joining portion 112b formed by joining both surfaces in the thickness direction to each other to form a cylindrical shape. The top surface member 111 and the cylindrical member 112 are joined by a top surface joining portion 112a. The bottom member 113 and the cylindrical member 112 are joined by a bottom joint 112c. Hereinafter, the top member 111 and the bottom member 113 may be collectively referred to as end members 111 and 113.

The top surface joining portion 112a is configured such that the peripheral portion 111b of the top surface member 111 is bent with respect to the top surface portion 111a, and is opposed to one surface of the tubular member 112. The bottom joint 112c is formed by bending the peripheral portion 113b of the bottom member 113 with respect to the bottom 113a so as to face one surface of the tubular member 112. Here, the surface of the cylindrical member 112 joined to the peripheral portions 111b and 113b may be an inner surface or an outer surface. In addition, the surfaces of the peripheral portions 111b and 113b to be joined to the tubular member 112 may be inner surfaces or outer surfaces. Note that the inner surface is a surface on the side in contact with the storage portion 114 of the content to be filled in the cylindrical container 100, and the outer surface is a surface on the opposite side to the storage portion 114.
The bending of the peripheral portions 111b, 113b of the end face members 111, 113 may be in the direction approaching the vertical end (that is, the upper end or the lower end) of the tubular member 112, or from the vertical end of the tubular member 112. It may be in the direction to go away. As in the modification shown in FIG. 15, the bottom surface portion 113a may be provided at an upper position away from the lower end portion of the tubular member 112, and the peripheral portion 113b may be bent upward from the bottom surface portion 113a. 14 and 15, since the bottom surface 113a is configured not to contact the installation surface, it is possible to suppress the rubbing of the bottom surface 113a by the installation surface. When there is partial contact between the installation surface and the bottom surface 113a, a rib or a step (a height difference) may be provided on the bottom surface 113a to reinforce the bottom surface 113a.

天 The top surface 111a and the bottom surface 113a of the container 100 are substantially flat. In the example shown in FIG. 14, the peripheral portion 111 b of the top member 111 is joined to the upper end of the cylindrical member 112 with the outer surface of the top member 111, which is the outer side of the top surface 111 a, facing the inner surface of the cylindrical member 112. Have been. Further, the peripheral portion 113b of the bottom member 113 is joined to the lower end of the tubular member 112 with the inner surface of the bottom member 113 facing the inner surface of the bottom member 113a facing the inner surface of the tubular member 112. Contrary to FIG. 14, the peripheral portion 111b of the top member 111 may be joined to the upper end of the cylindrical member 112 with the inner surface of the top member 111 facing the inner surface of the cylindrical member 112. Further, the peripheral portion 113b of the bottom member 113 may be joined to the lower end of the tubular member 112 with the outer surface of the bottom member 113 facing the inner surface of the tubular member 112.

The tubular member 112 is formed of a first laminate having a total thickness of 50 to 600 μm. The cylindrical member 112 is, for example, cylindrical, and the outer diameter of the cylindrical member 112 is 30 to 150 mm. The tubular member 112 may be a rectangular tube such as a triangular tube, a square tube, and a pentagonal tube. The outer diameter when the tubular member 112 is a square tubular shape is the distance between the apex and the apex facing each other, the side and the side, or the apex and the side, and when there are two or more, the minimum value and the maximum Preferably, the value is within the above range. A specific example of the outer diameter of the tubular member 112 is not particularly limited, and examples thereof include 30 mm, 50 mm, 100 mm, and 150 mm.

The first laminate constituting the cylindrical member 112 is composed of, for example, a laminate including an inner sealant layer having a resin layer, a barrier layer having an aluminum foil or an aluminum vapor-deposited layer, and an outer sealant layer having a resin layer. can do. The first laminate is preferably a film-like laminate that becomes planar when the peripheral surface joint 112b is separated and developed. The barrier layer of the first laminate may be composed of an aluminum vapor-deposited film. Further, the first laminate may be composed of three or more laminates each having at least one resin layer on both sides in the thickness direction of the aluminum foil. The thickness of the aluminum foil included in the first laminate may be smaller than the thickness of the aluminum foil included in the end face members 111 and 113 described later, for example, 6 μm or more. The thickness of the deposited aluminum film included in the deposited aluminum film may be smaller than the thickness of the aluminum foil.

The end members 111 and 113 are formed of a second laminate having a total thickness of 70 to 350 μm. The second laminate may be composed of, for example, three or more laminates each having at least one resin layer on both sides in the thickness direction of an aluminum foil having a thickness of 40 μm or more. The second laminate can be composed of, for example, a laminate including a sealant layer having a resin layer, a barrier layer having an aluminum foil, and a base layer having a resin layer. The second laminate may be a film-like laminate that becomes flat in a developed state, or may be a laminate having a three-dimensional molded portion. The outer diameter of the end face members 111 and 113 is a dimension obtained by subtracting twice the total thickness of the first laminate constituting the tubular member 112 from the outer diameter of the tubular member 112 (hereinafter, referred to as “set dimension A”). Preferably, they are substantially equal. That is, it is preferable that the outer diameters of the end face members 111 and 113 are substantially equal to the inner diameter of the tubular member 112. The outer diameter of the end face members 111 and 113 is preferably in the range of 90% to 110% of the above set dimension A, and more preferably in the range of 95% to 105%.

When the configuration of the first laminate and the second laminate is within the above range, the flexibility of the container 100 is ensured, and when the container 100 is discarded, the container 100 is folded, crushed, or compacted. be able to. In addition, the autonomy of the container 100 can be ensured by the thickness of the aluminum foil included in the second stacked body without complicating the structure of the top surface joint 112a and the bottom surface joint 112c. The upper limit of the thickness of the aluminum foil included in the second laminate is not particularly limited, but may be, for example, 200 μm or less. Specific examples of the thickness of the aluminum foil included in the second laminate include 40 μm, 50 μm, 70 μm, 80 μm, 100 μm, 120 μm, 150 μm, 180 μm, 200 μm, and a value in the middle or in the vicinity thereof. Since the peripheral portions 111b, 113b of the end face members 111, 113 or the cylindrical member 112 are cylindrical having a central axis in the vertical direction, by securing a sufficient thickness of the laminated body, rigidity capable of withstanding the load of the contents is ensured. Can be obtained. By using a resin layer for the configuration of the first laminate and the second laminate, the stab resistance can be improved.

に お い て In the first laminate and the second laminate, examples of a material forming the sealant layer include a thermoplastic resin. Specific examples of the sealant material include polyolefin resins such as polyethylene (PE) and polypropylene (PP), polyester resins such as polyethylene terephthalate (PET), and cyclic resins such as cycloolefin polymer (COP) and cycloolefin copolymer (COC). At least one kind of olefin-based resin, adhesive resin, coating agent and the like can be mentioned.

材料 As a material constituting the base material layer in the second laminate, nylon (aliphatic polyamide), polyester and the like can be mentioned. The thickness of the base material layer is, for example, 5 to 50 μm, and more preferably 10 to 30 μm. A thermoplastic resin such as polyethylene may be further laminated on the outside of the base material layer.

し な い Although not particularly shown, at least one of the top surface portion 111a and the bottom surface portion 113a may be provided with a spout. The spout may be narrow or wide. The spout after removing at least a portion of the contents may be closable. For example, a cap, a stopper, a lid, or the like may be provided at the spout. The spout may be integrated with the top member 111 or the bottom member 113 by molding. The molding method for molding the top member 111 or the bottom member 113 may be injection molding, compression molding, blow molding, extrusion molding, air pressure molding, draw molding, or the like.

When the contents are used, an opening may be formed in the top member 111 or the bottom member 113 to obtain a spout. When opening the spout, a mark may be provided to control the size and position of the opening.
For example, a configuration is adopted in which a weakened portion such as a perforation or a half cut is linearly provided in the second laminated body constituting the top member 111 or the bottom member 113, and an opening is formed along the weakened portion by an external force. May be.

The properties of the contents contained in the container 100 are arbitrary such as liquid, solid, powder, granules, and a mixture of two or more of these. The type of the contents is not particularly limited, and includes beverages, foods, seasonings, cosmetics, pharmaceuticals, detergents, adhesives, household goods, industrial products, and the like. One or two or more functionalities such as an oxygen absorbing function, an odor absorbing function, and a non-adsorbing function may be provided to each member constituting the container. The top member 111, the tubular member 112, and the bottom member 113 may each have at least one or more printed patterns. Each member constituting the container 100 is not limited to resin, and may be laminated or mixed with different materials such as paper, cloth, nonwoven fabric, and fiber.

As described above, the second aspect of the present invention has been described based on the preferred embodiments and modified examples. However, the present invention is not limited to the above-described embodiments and modified examples, and various modifications may be made without departing from the gist of the present invention. Can be modified. Modifications include additions, substitutions, omissions, and other changes of components in each embodiment and each modification. Further, addition, replacement, omission, and other changes of the constituent elements in each embodiment and each modification of the first aspect described above are included.

Hereinafter, the present invention will be specifically described with reference to examples.

<First aspect>
The cylindrical member 12 is composed of a laminated film having a total thickness of 350 μm, including a sealant layer made of PE with a thickness of 30 μm, a barrier layer made of vapor-deposited PET with a thickness of 12 μm, and a bonding layer made of PE with a thickness of 30 μm. did. Both ends in the circumferential direction of the laminated film were overlapped, and a cylindrical tubular member was obtained by heat welding.

The top member 11 and the bottom member 13 are made of a sealant layer made of PE having a thickness of 70 μm, an aluminum foil having a thickness of 80 μm, a base material layer made of nylon having a thickness of 15 μm, and an outer layer made of PE having a thickness of 70 μm. Was composed of a laminated film containing the components in this order. After the opening 11c was formed in the top member 11, the peripheral portions 11b and 13b of the top member 11 and the bottom member 13 were bent from the flat top surface 11a and bottom surface 13a by drawing. After the spout member 14 with the cap 15 is attached to the opening 11c of the top member 11, the peripheral portions 11b and 13b of the top member 11 and the bottom member 13 are connected to both ends of the cylindrical member 12 in the vertical direction. They were overlaid and heat welded.

By the above procedure, a self-supporting container 10 as shown in FIGS. 1 and 2 was obtained. The obtained container has strength even if it is lightweight, and the bottom part can be easily folded by hand.

<Second aspect>
(Example of bottom strength test)
In order to compare the strength of the bottom member, six types of samples were prepared as Reference Examples 1 to 4 and Comparative Examples 1 and 2. Three samples were prepared with the same specifications, a weight was applied from above, the value of the load that the sample could endure in the vertical direction was measured, and the load was set as the load resistance, and the average value of the three samples was set as the average load resistance. . When placing a weight on the sample, parallel pressure plates are placed above and below the sample, the lower pressure plate is fixed horizontally, and the upper pressure plate allows horizontal movement while allowing vertical movement. It was held so as not to move in the direction, and a downward load was applied to the upper pressing plate. The load capacity is expressed in kg, and 1 kg corresponds to about 9.8 N. The load-bearing kg is the mass applied to the sample from above, that is, the total value of the upper pressure plate and the weight. Note that equivalent results can be obtained by using a test device that mechanically applies a load instead of the weight.

(Reference Examples 1-4)
The samples of Reference Examples 1 to 4 are samples of the bottom member 113 in which the peripheral portion 113b is bent downward from the bottom portion 113a as shown in FIG. A laminate film having a total thickness of 114 μm having a resin layer on both sides of an aluminum foil having a thickness of 50 μm or 80 μm is drawn and formed so as to have a bottom portion having a diameter of 50 mm and a peripheral portion having a height of 4 mm or 9 μm. Produced.

In Reference Example 1, the average withstand load was about 6 kg, with the thickness of the aluminum foil being 50 μm and the height of the peripheral portion being 4 mm. In Reference Example 2, the average withstand load was about 13 kg, with the thickness of the aluminum foil being 50 μm and the height of the peripheral portion being 9 mm. Further, in Reference Example 3, the average withstand load was about 5 kg, with the thickness of the aluminum foil being 80 μm and the height of the peripheral portion being 4 mm. Further, in Reference Example 4, the average withstand load was about 14 kg with the thickness of the aluminum foil being 80 μm and the height of the peripheral portion being 9 mm.

(Comparative example)
The samples of Comparative Examples 1 and 2 are samples simulating the bottom of a standing pouch. The bottom film is made by folding a film whose left and right widths are equal to the left and right widths of the body film, and whose top and bottom widths are equal to twice the height of the body film, with the folds of the bottom film facing upward. It was prepared so that the lower end of the bottom film was aligned with the lower end of the body film when aligned with the upper end of the film. In the case of a normal standing pouch, the upper portion of the body film extends above the fold of the bottom film to form a storage portion. In this comparative example, the sample of the body is located above the fold of the bottom film. This is a structure in which the film is omitted.

(Comparative Example 1)
Using a laminated film having a total thickness of 124 μm having a resin layer on both sides of an aluminum foil having a thickness of 7 μm, the bottom film is folded in two between two body films having a width of 90 mm on the left and right and a height of 25 mm. A sample of Comparative Example 1 was prepared in which the bottom of the standing pouch was imitated with an arc-shaped heat seal. In Comparative Example 1, the average withstand load was about 2 kg.

(Comparative Example 2)
Using a resin film having no aluminum foil and a total thickness of 171 μm, the bottom film is folded in two and sandwiched between two body films having a width of 120 mm on the left and right and a height of 40 mm. Thus, a sample of Comparative Example 2 simulating the bottom of the standing pouch was produced. In Comparative Example 2, the average load capacity was about 1.6 kg.

(Consideration of experimental example of bottom strength)
Table 1 shows an outline of the experimental results. The “sample height” in Table 1 is the height of the peripheral portion in Reference Examples 1 to 4, and the height of the body film in Comparative Examples 1 and 2. In addition, “left and right widths of the sample” in Table 1 are the diameters of the bottom portion in Reference Examples 1 to 4, and the left and right widths of the body film in Comparative Examples 1 and 2. From a comparison between Reference Examples 1 to 4 and Comparative Examples 1 and 2, it was found that the bottom members of Reference Examples 1 to 4 have a large load resistance and a high strength against vertical compression.

(Example of container)
A bottom member made of any one of Reference Examples 1 to 4 and a top member having the same specification as each bottom member are superimposed on the upper and lower ends of the tubular member and heat-welded. A self-supporting container as shown in Table 1 was obtained. The obtained container has strength even if it is lightweight, and the bottom part can be easily folded by hand.

10, 20, 30, 100 ... container, 11, 21, 41, 111 ... top member, 11a, 21a, 41a, 111a ... top surface portion, 11b, 21b, 41b, 111b ... peripheral portion of the top member, 11c, 21c ... opening, 12, 22, 32, 42, 112 ... cylindrical member, 12a, 22a, 42a, 112a ... top surface joint, 12b, 22b, 42b, 112b ... peripheral surface joint, 12c, 22c, 42c , 112c: bottom joint, 12d, 22d, 112d: peripheral surface, 13, 23, 31, 43, 113: bottom member, 13a, 23a, 43a, 113a: bottom portion, 13b, 23b, 43b, 113b: bottom member Peripheral portions, 14, 24 ... outlet members, 14a, 24a, 41c ... outlets, 14b, 24b ... flange portions, 15, 25 ... caps, 16, 26 ... accommodation portions, 31a 32a ... sealant layer, 31b, 32 b ... barrier layer, 31c ... base layer, 32c ... bonding layer, 44,46,47,48 ... fold line 45 ... force, 114 ... housing part.

Claims (12)

1. A cylindrical member constituting a peripheral surface between the top surface and the bottom surface,
   A top surface member provided on the top surface portion,
   A bottom member provided on the bottom portion,
   A spout is provided on at least one of the top surface portion or the bottom surface portion,
   The tubular member is formed of a laminated film having a sealant layer on the innermost surface, a bonding layer bonded to the sealant layer, and a barrier layer laminated between the sealant layer and the bonding layer, A peripheral surface joining portion formed by joining a layer and the joining layer to face each other in a cylindrical shape,
   The top surface member is made of a laminate having a sealant layer, and has a top surface joining portion formed by joining the sealant layer of the top surface member and the sealant layer of the tubular member so as to face each other,
   The bottom member is formed of a laminated film having a sealant layer, a base material layer, and a barrier layer stacked between the sealant layer and the base material layer. The sealant layer of the bottom member and the cylindrical member Having a bottom surface joint portion which is made by joining the sealant layer so as to face each other,
   The tubular member and the bottom member are made of a laminated film having flexibility,
   A barrier layer of the bottom member is made of aluminum foil having a thickness of 7 to 200 μm;
   An autonomous container.
2. In the bottom surface joining portion, a peripheral portion of the bottom surface member is bent with respect to the bottom surface portion, and a surface that is inward at the bottom surface portion is joined to an inner surface of a lower end portion of the tubular member. ,
   The container according to claim 1, wherein the barrier layer of the bottom member is made of an aluminum foil having a thickness of 15 to 200 μm.
3. In the bottom joint portion, a peripheral edge of the bottom member is bent with respect to the bottom portion, and a surface that is outside at the bottom portion is joined toward an inner surface of the tubular member, and the bottom portion is Located above the lower end of the tubular member, the bottom surface is configured not to contact the installation surface,
   The container according to claim 1, wherein the barrier layer of the bottom member is made of an aluminum foil having a thickness of 15 to 200 μm.
4. The said top surface member is comprised from the laminated body which has the said sealant layer, a base material layer, and the barrier layer laminated | stacked between the said sealant layer and the said base material layer, The Claims characterized by the above-mentioned. The container according to any one of claims 1 to 3.
5. (5) The container according to any one of (1) to (4), wherein the bottom surface member has a fold line that crosses the bottom surface portion that forms the inside of the bottom surface joint.
6. The container according to any one of claims 1 to 5, wherein the cylindrical member, the top surface member, the bottom surface member, and the spout each have at least one or more printed patterns.
7. (7) The container according to any one of (1) to (6), wherein a cap is provided at the spout.
8. (8) The container according to any one of (1) to (7), wherein the diameter of the cylindrical member is in a range of 10 to 200 mm.
9. A cylindrical member constituting a peripheral surface between the top surface and the bottom surface,
   A top surface member provided on the top surface portion and joined to the tubular member;
   A bottom member provided on the bottom surface portion and joined to the tubular member,
   The tubular member is made of a first laminate having a total thickness of 50 to 600 μm,
   The outer diameter of the tubular member is 30 to 150 mm,
   The top member and the bottom member are made of a second laminate having a total thickness of 70 to 350 μm, and the second laminate has at least one layer on each side in the thickness direction of an aluminum foil having a thickness of 40 μm or more. A container comprising a laminate of three or more layers having a resin layer.
10. The container according to claim 9, wherein the first laminate is formed of three or more laminates each having at least one resin layer on both sides in the thickness direction of the aluminum foil.
11. 11. The container according to claim 9, wherein a peripheral portion of the bottom member is bent with respect to the bottom portion and is joined to a lower end of the tubular member. 12.
12. The container according to any one of claims 9 to 11, wherein the thickness of the aluminum foil included in the second laminate is 200 μm or less.

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