JP2021004096A - container - Google Patents

Abstract

To provide a container capable of making compatible strength and disposability in a soft packaging container having a self-standing property.SOLUTION: This container comprises: a cylindrical member 12 constituting a peripheral surface part 12d; a top surface member 11 provided to a top surface part 11a; a bottom surface member 13 provided to a bottom surface part 13a; and a pouring port 14a provided to at least one of the top surface part 11a and a bottom surface part 13a. The container further includes: a peripheral surface joining part formed by facing a sealant layer and a joint layer of the cylindrical member 12 to cylindrically join them; a top surface joining part 12a formed by facing a sealant layer of the top surface member 11 and the sealant layer of the cylindrical member 12 to join them; and a bottom surface joining part 12c formed by facing a sealant layer of the bottom surface member 13 and the sealant layer of the cylindrical member 12 to join them. The cylindrical member 12 and the bottom surface member 13 are constituted by flexible laminated films, and layers other than a barrier layer of the bottom surface member 13 are made of only resin, and the barrier layer of the bottom surface member 13 is made of an aluminum foil whose thickness is 15-200 μm, to ensure a self-standing property.SELECTED DRAWING: Figure 2

Description

The present invention relates to a self-supporting container.

Patent Document 1 describes a cylindrical storage cylinder having an open end portion and a base end portion, a bottom member provided at the open end portion of the base end portion, and a top plate member provided at the open end portion of the base end portion. A cartridge for a fluid substance, which is composed of, and is filled with a fluid substance inside, is described.

Japanese Unexamined Patent Publication No. 2013-566692

In the cartridge for fluid substances described in Patent Document 1, the cylindrical accommodating 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 made of a laminated film having gas barrier properties. The outer film is heat-welded, and the bottom member is formed of a laminated film having a gas barrier property, and when the entire amount is discharged, substantially the entire area of the cylindrical accommodating cylinder can be crushed. Further, paragraph 0037 of Patent Document 1 mentions an aluminum film on which aluminum is vapor-deposited as a gas barrier film suitable for a laminated film constituting each member.

As described above, the flexible packaging container mainly composed of the laminated film is lightweight and excellent in disposability, but the loading efficiency of the container filled with the contents is poor, and the container strength such as drop strength and bag breaking strength is low. In addition, containers such as paper cartons and brick packs (registered trademarks), which are often seen today, have stable shapes, excellent loading efficiency, and are lightweight, but they are used for the strength of containers, especially for paper containers. Since the interlayer strength of the base material is inferior, it is a problem that it is vulnerable to impact such as dropping depending on the shape of the container. Further, the paper container is inferior to the film container in appearance design such as gloss. 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 an object of the present invention is to provide a self-supporting flexible packaging container capable of achieving both strength and disposability.

In order to solve the above problems, the present invention presents a tubular member forming a peripheral surface portion between a top surface portion and a bottom surface portion, a top surface member provided on the top surface portion, and a bottom surface provided on the bottom surface portion. A member is provided, and a spout is provided on at least one of the top surface portion and the bottom surface portion, and the tubular member includes a sealant layer on the innermost surface, a bonding layer bonded to the sealant layer, and the sealant layer. It is composed of a laminated film having a barrier layer laminated between the bonding layer and the bonding layer, and has a peripheral surface bonding portion formed by facing the sealant layer and the bonding layer and bonding them in a tubular shape. The surface member is made of a laminated body having a sealant layer, and has a top surface joint 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. It is composed of a laminated film having a sealant layer, a base material layer, and a barrier layer laminated between the sealant layer and the base material layer, and the sealant layer of the bottom surface member and the sealant layer of the tubular member are formed. The tubular member and the bottom member are made of a flexible laminated film, and the layers other than the barrier layer of the bottom member are made of only resin, and have a bottom joint portion formed by facing each other. The barrier layer of the bottom member is made of an aluminum foil having a thickness of 15 to 200 μm to provide a self-supporting container.

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 surface member may have a folding line that crosses the bottom surface portion that constitutes the inside of the bottom surface joint portion.
The tubular member, the top surface member, the bottom surface 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 the present invention, it is possible to provide a self-supporting flexible packaging container that can achieve both strength and disposability.

It is a perspective view of the container of 1st Embodiment. It is sectional drawing along the line II-II of FIG. It is a perspective view of the container of 2nd Embodiment. It is sectional drawing along the IV-IV line of FIG. It is sectional drawing which illustrates the joint part of the tubular member and the top surface member or the bottom surface member. It is sectional drawing which shows the modification example of the structure which integrated the spout with the top surface member. It is sectional drawing which shows the 1st modification example of the structure which joined the bottom surface member to the tubular member. It is sectional drawing which shows the 2nd modification example of the structure which joined the bottom surface member to the tubular member. It is a perspective view which shows the 1st modification example of the structure which provided the fold line in the bottom surface part. It is a perspective view which shows the 2nd modification example of the structure which provided the fold line in the bottom surface part. It is a perspective view which shows the 3rd modification example of the structure which provided the fold line in the bottom surface part. It is a perspective view which shows the 4th modification example of the structure which provided the fold line in the bottom surface part.

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

1 and 2 illustrate the container 10 of the first embodiment, and FIGS. 3 and 4 illustrate the container 20 of the second embodiment. These containers 10 and 20 are provided on the top surface members 11 and 21 provided on the top surface portions 11a and 21a, the tubular members 12 and 22 constituting the peripheral surface portions 12d and 22d, and the bottom surface portions 13a and 23a. It includes accommodating portions 16 and 26 surrounded by bottom members 13 and 23.

In addition, the containers 10 and 20 have independence. The independence of the containers 10 and 20 is at least a property that allows the containers 10 and 20 to become independent in a sealed state filled with the contents. Further, it is preferable that the accommodating portions 16 and 26, which are not filled with the contents, can be self-supporting even if they are empty and the spouts 14a and 24a are opened. Further, it is preferable that the tubular members 12 and 22 can stand on their own in a single state separated from the top surface members 11 and 21 and the bottom surface members 13 and 23.

The top surface portions 11a and 21a are upper surfaces when they are independent, and the bottom surface portions 13a and 23a are lower surfaces when they are independent. The peripheral surface portions 12d and 22d are formed so as to cover the circumferential directions intersecting in the vertical direction between the top surface portions 11a and 21a and the bottom surface portions 13a and 23a. The housing portions 16 and 26 of the containers 10 and 20 can be composed of three parts in which the top surface members 11 and 21, the tubular members 12 and 22, and the bottom surface members 13 and 23 are combined one by one.

The tubular members 12 and 22 have peripheral surface joining portions 12b and 22b formed by joining the tubular members 12 and 22 in a tubular shape with both sides facing each other in the thickness direction. Further, the top surface members 11 and 21 and the tubular members 12 and 22 are joined by top surface joining portions 12a and 22a. Further, the bottom surface members 13 and 23 and the tubular members 12 and 22 are joined by bottom surface joint portions 12c and 22c.

The top surface joining portions 12a and 22a are configured such that the peripheral edges 11b and 21b of the top surface members 11 and 21 are bent with respect to the top surface portions 11a and 21a so as to face the inner surfaces of the tubular members 12 and 22. Further, the bottom surface joint portions 12c and 22c are configured such that the peripheral portions 13b and 23b of the bottom surface members 13 and 23 are bent with respect to the bottom surface portions 13a and 23a so as to face the inner surfaces of the tubular members 12 and 22.

In the case of the container 10 of the first embodiment, the top surface portion 11a and the bottom surface portion 13a are substantially flat surfaces. In the first embodiment, the peripheral portions 11b and 13b of the top surface member 11 and the bottom surface member 13 have the tubular member 12 with the inner surface of the top surface portion 11a and the bottom surface portion 13a facing the inner surface of the tubular member 12. It is joined to both ends in the vertical direction.

In the case of the container 20 of the second embodiment, the bottom surface portion 23a is a substantially flat surface, and the peripheral edge portion 23b of the bottom surface member 23 is joined so that the inner surface of the bottom surface portion 23a faces the inner surface of the tubular member 22. Is the same as in the first embodiment. In the second embodiment, the top surface portion 21a has a conical surface shape, and the peripheral portion 21b of the top surface member 21 is joined so that the outer surface of the top surface portion 21a faces the inner surface of the tubular member 22. It is different from the first embodiment.

The spouts 14a and 24a are provided on at least one of the top surface portions 11a and 21a or the bottom surface portions 13a and 23a. The spouts 14a and 24a may be narrow or wide. When opening the openings 11c and 21c, a marking may be provided to control the opening size and position. The spout may be integrated by molding the top surface members 11, 21 or the bottom surface members 13, 23.

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

Caps 15 and 25 are provided at 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 so that they can be resealable. In addition to the screws, the caps 15 and 25 can be connected to the spouts 14a and 24a by adhesion, thin-walled portion, fitting, and the like. The resealability of the caps 15 and 25 is not essential, for example, after the caps 15 and 25 are removed from the spouts 14a and 24a, the joints of the caps 15 and 25 with respect to the spouts 14a and 24a are irreversibly broken. Therefore, the original combined state does not have to be reproduced.

FIG. 5 illustrates a joint portion between the tubular member and the top surface member or the bottom surface member. Here, the bottom surface joint portion in which the bottom surface member 31 and the tubular member 32 are joined is shown, but the top surface joint portion in which the top surface 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 surface member or bottom surface member 31 can be composed of a laminated body having a sealant layer 31a, a base material layer 31c, and a barrier layer 31b laminated between the sealant layer 31a and the base material layer 31c. The laminated body constituting the top surface member or the bottom surface member 31 may be a laminated film that becomes flat in the unfolded state, or may be a laminated molded body having a three-dimensional molded portion.

The tubular member 32 is composed of a laminated body having a sealant layer 32a on the innermost surface, 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 constituting the tubular member 32 is preferably a laminated film that becomes flat when the peripheral joints are separated and developed.

The top surface joint portion or bottom surface joint portion can be configured such that the sealant layer 31a of the top surface member or 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 surface joining portions 12b and 22b of the tubular members 12 and 22 shown in FIGS. 1 or 3 have the sealant layer 32a and the joining layer 32c of the tubular member 32 facing each other. Can be configured.

The tubular members 12, 22, 32 and the bottom members 13, 23, 31 are preferably made of a flexible laminated film. As a result, 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. You can crush it or put it together in small pieces. Further, the top surface members 11 and 21 may be made of a flexible laminated film. The flexible laminated film preferably has, for example, a total thickness of 500 μm or less, and may be about 350 μm or about 200 μm.

The barrier layer included in the bottom members 13, 23, 31 is preferably made of an aluminum foil having a thickness of 7 to 200 μm. As a result, even if the containers 10, 20, and 30 of the present embodiment are self-supporting flexible packaging containers, the container strength can be maintained. The thickness of the barrier layer contained in the bottom members 13, 23, 31 is preferably 9 to 150 μm, more preferably 12 to 120 μm, and even more preferably 15 to 100 μm.

Examples of the material constituting the sealant layer contained in each of the top surface members 11, 21, tubular members 12, 22, 32, and bottom surface members 13, 23, 31 include polyethylene (PE), polypropylene (PP), and the like. At least one or more of polyolefin-based resin, polyester-based resin such as polyethylene terephthalate (PET), cyclic olefin-based resin such as cycloolefin polymer (COP) and cycloolefin copolymer (COC), adhesive resin, coating agent and the like can be mentioned. ..

As the barrier layer contained in the tubular members 12, 22 and 32, an aluminum foil or an aluminum-deposited film is preferable. The barrier layer included in the top surface members 11 and 21 is preferably an aluminum foil, similarly to the barrier layer included in the bottom surface members 13, 23 and 31.

The bonding layer contained in the tubular members 12, 22 and 32 is not particularly limited as long as it can be bonded to the sealant layer, but a thermoplastic resin that can be bonded by heat welding is preferable. Examples of the material constituting the bonding layer include polyolefin resins such as polyethylene (PE) and polypropylene (PP), polyester resins such as polyethylene terephthalate (PET), cycloolefin polymers (COP), and cycloolefin copolymers (COC). At least one or more of cyclic olefin resins such as, adhesive resins, and coating agents can be mentioned.

Nylon (aliphatic polyamide) is preferable as the material constituting the base material layer contained in the top surface members 11, 21 and the bottom surface members 13, 23, 31. The thickness of the base material layer is, for example, 50 to 50 μm, 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, and 32 may have a cylindrical shape, or may have a square tubular shape such as a triangular cylinder, a square cylinder, or a pentagonal cylinder. The diameters of the tubular members 12, 22 and 32 are, for example, in the range of 5 to 250 mm, preferably in the range of 10 to 200 mm. Here, the diameter when the tubular member has a square tubular shape is the distance between the vertices and the vertices, the sides and the sides, or the vertices and the sides facing each other, and when these are two or more, the minimum value and The maximum value is preferably within the above range. The diameters of the tubular members 12, 22, and 32 are not particularly limited, but may be, for example, 20 mm, 50 mm, 100 mm, 150 mm, or the like.

The molding methods of the top surface members 11 and 21 and the bottom surface members 13, 23 and 31 having the spouts 14a and 24a may be injection molding, compression molding, blow molding, extrusion molding, pressure molding, draw molding or the like. Top surface members 11, 21 and bottom surface members 13, 23, 31 may be directly molded on the tubular members 12, 22 by heat welding, ultrasonic welding, high frequency welding, adhesive, laser welding, or the like after molding. It may be joined. The sealant layers of the top surface members 11, 21 or the bottom surface members 13, 23, 31 may be directly joined to the sealant layers of the tubular members 12, 22, 32. The top surface members 11, 21, or the bottom surface members 13, 23, 31 and the tubular members 12, 22, 32 may be joined via an adhesive, a resin layer, or the like.

When the spout members 14 and 24 include flange portions 14b and 24b having a resin layer similar to the sealant layer, the flange portions 14b and 24b are with 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. Further, the top surface members 11, 21, or the bottom surface members 13, 23, 31 and the spout members 14, 24 may be joined via an adhesive, a resin layer, or the like.

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

In the modified example shown in FIG. 6, the spout 41c is integrated with the top surface member 41. The spout 41c may be provided with means for closing the spout, similarly to the caps 15, 25, etc. of the first embodiment or the second embodiment.

In the modified example shown in FIG. 7, the peripheral edge portion 43b of the bottom surface member 43 is joined so that the outer surface of the bottom surface portion 43a faces the inner surface of the tubular member 42.
In the modified example shown in FIG. 8, the bottom surface portion 43a is located above the lower end portion of the tubular member 42 so that the bottom surface portion 43a does not come into contact with the installation surface. As a result, rubbing of the bottom surface portion 43a by the installation surface can be suppressed.

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

In the modified example shown in FIG. 11, a plurality of folding lines 47 crossing the bottom surface portion 43a are arranged so as to intersect each other. Further, in the modified example shown in FIG. 12, a plurality of folding lines 48 are radially arranged on the bottom surface portion 43a. In this case, by applying a force to the plurality of folding lines 47 and 48 in an appropriate direction, the bottom surface portion 43a can be easily bent. The number of folding lines 47 and 48 can be increased or decreased as appropriate.
In FIGS. 9 to 12, the configuration of the bottom member 43 having the folding lines 44, 46, 47, 48 on the bottom portion 43a is the same as in FIGS. 1 to 4, but the bottom member 43 shown in FIGS. 7 to 8 Folding lines 44, 46, 47, 48 may be provided on the bottom surface portion 43a.

The properties of the contents contained in the containers of each 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 contents is not particularly limited, and examples thereof include beverages, foodstuffs, seasonings, cosmetics, pharmaceuticals, detergents, adhesives, household products, and industrial products. Each member constituting the container may be provided with one or more functionalities such as an oxygen absorption function, an odor absorption function, and a non-adsorption function. The tubular member, the top surface member, the bottom surface member, and the spout may each have at least one or more printed patterns. Each member constituting the container is not limited to resin, and different materials such as paper, cloth, non-woven fabric, and fiber may be laminated or blended.

Although the present invention has been described above based on preferred embodiments and modifications, the present invention is not limited to the above-described embodiments and modifications, and various modifications can be made without departing from the gist of the present invention. is there. Modifications include addition, replacement, omission, and other modifications of components in each embodiment and each modification. It is also possible to appropriately combine the components used in the two or more embodiments or modifications.

The spout is not limited to a three-dimensional molded product having a tubular spout and a flange portion along the surface of the top surface member or the bottom surface member, and may have any structure as long as it functions as an outlet for the contents. Further, the means for closing the spout is not limited to the cap, and any structure may be used. For example, the opening of the top surface member may be used as a spout as it is, a sealing film may be attached to the opening, and a straw may be inserted into the film to suck out the contents. Further, although it is possible to provide a spout in the tubular member, the tubular member may have a structure having no spout from the viewpoint of the independence and strength of the container.

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

The tubular member 12 is composed of a laminated film having a total thickness of 350 μm, which includes a sealant layer made of PE having a thickness of 30 μm, a barrier layer made of vapor-deposited PET having a thickness of 12 μm, and a bonding layer made of PE having a thickness of 30 μm. did. Both ends of the laminated film in the circumferential direction were overlapped to obtain a cylindrical tubular member by heat welding.

The top member 11 and the bottom member 13 include 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 in this order. After forming the opening 11c in the top surface member 11, the peripheral edges 11b and 13b of the top surface member 11 and the bottom surface member 13 were bent from the flat top surface portion 11a and the bottom surface portion 13a by drawing molding. After attaching the spout member 14 having the cap 15 to the opening 11c of the top member 11, the peripheral edges 11b and 13b of the top member 11 and the bottom member 13 are attached to both ends of the tubular member 12 in the vertical direction. They were overlapped and heat welded.

Through the above procedure, a self-supporting container 10 as shown in FIGS. 1 and 2 was obtained. The obtained container is lightweight but strong, and the bottom surface can be easily folded by hand.

10, 20, 30 ... Containers 11,21,41 ... Top surface member, 11a, 21a, 41a ... Top surface portion, 11b, 21b, 41b ... Peripheral portion of top surface member, 11c, 21c ... Opening, 12, 22 , 32, 42 ... Cylindrical member, 12a, 22a, 42a ... Top surface joint, 12b, 22b, 42b ... Peripheral surface joint, 12c, 22c, 42c ... Bottom surface joint, 12d, 22d ... Peripheral surface, 13, 23, 31, 43 ... Bottom member, 13a, 23a, 43a ... Bottom portion, 13b, 23b, 43b ... Bottom member peripheral edge, 14, 24 ... Outlet member, 14a, 24a, 41c ... Outlet, 14b, 24b ... Flange portion, 15, 25 ... Cap, 16, 26 ... Containing portion, 31a, 32a ... Sealant layer, 31b, 32b ... Barrier layer, 31c ... Base material layer, 32c ... Bonding layer, 44, 46, 47, 48 ... Folded line, 45 ... force.

Claims (9)

Cylindrical members that form the peripheral surface between the top and bottom surfaces,
With the top surface member provided on the top surface portion,
A bottom member provided on the bottom surface portion is provided.
A spout is provided on at least one of the top surface portion and the bottom surface portion.
The tubular member is composed 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. It has a peripheral joint portion formed by joining the layer and the joining layer in a tubular shape so as to face each other.
The top surface member is made of a laminated body having a sealant layer, and has a top surface joint 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 surface member is composed of a laminated film having a sealant layer, a base material layer, and a barrier layer laminated between the sealant layer and the base material layer, and the sealant layer of the bottom surface member and the tubular member. Has a bottom joint formed by facing and joining the sealant layers of
The tubular member and the bottom surface member are made of a flexible laminated film.
The layer other than the barrier layer of the bottom member is made of only resin.
The barrier layer of the bottom member is made of an aluminum foil having a thickness of 15 to 200 μm.
A container that is self-supporting. The claim is characterized in that the top surface member is 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 container according to 1. The container according to claim 1 or 2, wherein the bottom surface member has a folding line that crosses the bottom surface portion that constitutes the inside of the bottom surface joint portion. The container according to any one of claims 1 to 3, wherein the tubular member, the top surface member, the bottom surface member, and the spout each have at least one printed pattern. The container according to any one of claims 1 to 4, wherein a cap is provided at the spout. The container according to any one of claims 1 to 5, wherein the diameter of the tubular member is within the range of 10 to 200 mm. The container according to any one of claims 1 to 6, wherein the barrier layer of the bottom member is made of an aluminum foil having a thickness of 80 to 200 μm. The container according to any one of claims 1 to 7, wherein the base material layer of the bottom member is made of an aliphatic polyamide. The container according to claim 8, wherein the barrier layer of the tubular member is made of an aluminum-deposited film.

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