JP4184477B2 - Tubular container - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a tube-shaped container in which a puncture pouring tool is pierced into a puncture sealing film, and contents can be taken out in a state where outside air does not enter the container.
[0002]
[Prior art]
Conventionally, as a packaging bag for refilling liquid detergent used in each home, etc., the shape of a self-supporting bag is generally used, and in order to refill detergent into a dispensing container, The top corner is cut to form an opening and refilled into a dispensing container from the opening, or in the case of a self-supporting bag with a spout formed at the upper end, refilled to a dispensing container. Yes. However, in the case of refilling as described above, the mouth portion of the dispensing container is narrow, so it takes time for refilling and there is a risk that the contents will be zeroed during refilling. In addition, since the outside air is mixed into the contents when refilling, there is a problem such as deterioration of the contents and propagation of microorganisms, and there is a disadvantage that it is not preferable for packaging contents used in the mouth like liquid toothpaste etc. there were.
[0003]
As a liquid storage bag in which the disadvantages are improved and the contents need not be refilled into the dispensing container, for example, as described in Japanese Patent No. 2661868, the tip of the pouring tool is inserted into the bag and the contents are taken out. Liquid storage bags that are capable of handling are known. In this liquid storage bag, a portion other than the bottom is formed by a first laminate film made of stretched nylon and a polyolefin film, and a bottom portion is formed by a second laminate film made of unstretched nylon and a polyolefin film. This stand pack type bag is stored in the dispensing container body upside down, and a lid provided with a pump member is attached to the upper end of the dispensing container body, and at the same time, the tube of the pump member Is inserted into the film forming the bottom of the stand pack type liquid storage bag to take out the contents. In the case of this liquid storage bag, the effort to refill can be saved and cleanliness can be maintained, but the shape of the liquid storage bag is a stand pack type, and the liquid storage bag is used upside down, It was inferior in terms of space saving and slim body required for products placed on the washstand and vanity.
[0004]
[Problems to be solved by the invention]
An object of the present invention is to provide a tube-shaped container in which the contents can be easily taken out without the outside air being mixed into the container simply by piercing the puncture pouring tool into the puncture sealing film.
[0005]
[Means for Solving the Problems]
A pierceable lid member is thermally bonded to one end portion of a highly flexible cylindrical body having a thermoplastic resin layer on the inner surface while keeping the sealing property, and the other end portion is folded and heated. A tube-shaped container that is bonded and contains contents, and is an annular body having a large circular opening at the center on the inner peripheral surface of one end of the cylindrical body that remains open. An outlet is attached and formed by thermally bonding the outer peripheral surface of the spout , and the piercable lid member is thermally bonded to an annular plane that covers the opening of the spout and forms the upper end of the spout , And it is a tube-shaped container with which sealing performance is ensured in the state which stabbed the stab cylinder of the stab and extractor. In this case, the contents can be easily taken out by piercing the piercing tube of the piercing and dispensing tool into a piercable lid member and sucking it out with a pump. Further, since the cylindrical body has flexibility, the cylindrical body is crushed and the volume is reduced as the stored contents are reduced, so that all the contents can be taken out. By adopting the above-mentioned shape, the container can be slimmed, and is particularly suitable as a container placed on a washstand or a dressing table that requires space saving.
[0006]
In the above tubular container, the pierceable lid is made of a polyolefin resin having excellent flexibility, or the pierceable lid is made of a plastic layer having an excellent gas barrier property on the outer surface side, and the inner surface side is acceptable. By setting it as the polyolefin-type resin excellent in flexibility, the sealing performance at the time of piercing a piercing pipe | tube to the cover material which can be pierced is securable. Moreover, it can be set as the tube-shaped container excellent in the preservation | save property of the contents.
[0007]
In the above tubular container, a cylindrical body formed by stacking opposing edges of a rectangular laminated film and heat-bonding them or a cylindrical body formed by extrusion molding of a plastic is used. By adopting a configuration in which a spout having an opening is molded and attached to the spout, it is easy to attach and seal the piercing sealing film to the spout by thermal bonding.
[0008]
In the above tubular container, a manufacturing process can be simplified by producing a cylindrical body with a spout formed by plastic blow molding.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 is a perspective view showing a first embodiment of a tubular container of the present invention, FIG. 2 (a) is a cross-sectional view taken along the line II in FIG. 1, (b) is a cross-sectional view perpendicular to (a), FIG. FIG. 4 is a sectional view corresponding to FIG. 2 (a) showing a state in which the contents in the first embodiment are taken out, FIG. 4 is a sectional view corresponding to FIG. 2 (b) showing the second embodiment of the present invention, FIG. FIG. 3 is a cross-sectional view showing a state in which the tubular container of the first embodiment is stored in a dispensing container and the contents are taken out, where 1 and 1 ′ are tubular containers, 2 and 2 ′ are cylindrical bodies, and 3 is a side End heat bonding part, 4 is bottom heat bonding part, 5, 5 'is spout, 6, 6' is opening, 7 is a puncture sealing film, 8 is spout heat bonding part, 10 is a dispensing container body, 11 is Lid, 12 is an engaging part, 13 is a pumping tool, and 14 is a piercing tube.
[0010]
The tubular container 1 according to the first embodiment of the present invention is as shown in FIGS. It consists of a cylindrical body 2 formed by overlapping opposite edges of a quadrangular laminated film and adhering them at the side edge thermal bonding portion 3, and a plastic molded product is formed on one edge of the cylindrical body 2. A spout 5 having an opening 6 at the center is attached, and the piercing sealing film 7 is thermally bonded and sealed at the spout heat bonding portion 8 so as to cover the opening 6 of the spout 5, and the other The end edge has a configuration in which the cylindrical body 2 is folded and sealed by the bottom heat bonding portion 4. In the first embodiment, the cylindrical body 2 formed by overlapping and thermally bonding opposing edges of a rectangular laminated film is used. However, a cylindrical body manufactured by extrusion molding of plastic is used. In this case, it is preferable to form a gas barrier cylindrical body by multilayer extrusion including a gas barrier layer.
[0011]
The cross-sectional shape of the first embodiment is as shown in FIGS. 2 (a) and 2 (b), and the spout 5 attached to the cylindrical body 2 is produced by plastic injection molding. The shape is an annular body with a large circular opening 6 in the center. The spout 5 is inserted inside one end edge of the tubular body 2, and the inner surface of the tubular body 2 and the outer peripheral surface of the spout 5 are attached by thermal bonding. A circular puncture sealing film 7 covering the opening 6 is thermally bonded to the spout 5 at a peripheral spout heat bonding portion 8 and sealed. The other end edge of the cylindrical body 2 has a configuration in which the cylindrical body 2 is folded and sealed between the inner surfaces of the laminated films facing each other at the bottom heat bonding portion 4. Since the laminated film used for producing the cylindrical body 2 of the first embodiment is formed by overlapping the opposite edges of the laminated film and bonding them at the side edge heat bonding portion 3. It is necessary to use one having an inner surface and an outer surface made of a thermoplastic resin layer.
[0012]
In order to take out the contents from the tube-shaped container of the present invention, an extraction tool with a pump is used. As shown in FIG. 3, the puncture tube 14 of the pouring tool with a pump is penetrated through the puncture sealing film 7 and stabbed into the tube-like container 1, and the contents can be dispensed by operating the pump. it can. When the piercing tube 14 is pierced through the piercing sealing film 7, the airtightness between the piercing tube 14 and the piercing sealing film 7 is maintained at the piercing portion, so that the contents are taken out and reduced. Accordingly, the tubular body 2 of the tubular container is crushed and the volume is reduced accordingly. Therefore, all the contents can be taken out.
[0013]
The tubular container 1 ′ of the second embodiment of the present invention has a spout 5 made by plastic injection molding at one end edge of the cylindrical body 2 like the tubular container 1 of the first embodiment. It is not an attached structure, but as shown in FIG. 4 and is produced by cutting and removing the bottom of a container with a spout 5 'produced by plastic blow molding. The spout 5 'is formed integrally with one end of the spout 5', and a circular puncture-sealing film 7 is thermally bonded and sealed to the peripheral edge covering the opening 6 of the spout 5 '. The other end of the cylindrical body 2 ′ is configured to be folded and sealed with the bottom heat bonding portion 4. The tubular container 1 ′ of the second embodiment is produced by plastic blow molding, and has a single-layer configuration made of a polyolefin resin, and an outer layer and an inner layer are made of a polyolefin resin, and an intermediate layer has a gas barrier property. A multilayer structure made of plastic can be used.
[0014]
As a dispensing container for taking out the contents, for example, as shown in FIG. 5, the dispensing container body 10 and a lid body 11 provided with a pumping device 13 are used, and the engaging portion 12 of the lid body 11 is dispensed. A dispensing container that can be engaged with and attached to the flange of the main body 10 can be used. The tube-like container 1 is inserted into the inside of the dispensing container body 10, the engaging portion 12 of the lid body 11 is engaged with the flange of the dispensing container body 10, the lid body 11 is attached, and the piercing tube 14 is pierced and sealed. The contents can be dispensed by piercing the adhesive film 7 and inserting the tip of the piercing tube 14 into the tube-like container 1 and operating the pumping tool 13. When the contents in the tube-like container 1 are taken out and reduced, the piercing portion of the piercing sealing film 7 into which the piercing tube 14 has been pierced is kept airtight, so that air from the outside is tubular. The cylindrical body 2 is crushed by the reduced volume of the contents without entering the container 1, and the contents stored in the tubular container 1 are removed as shown in FIG. Can do. By providing a dispensing container in each household, etc., it can be used repeatedly for refilling by simply replacing it with a new tubular container when it is finished.
[0015]
As the puncture sealing film that covers and adheres to the opening of the spout, low density polyethylene (LDPE), linear low density polyethylene (LLDPE), medium density polyethylene (MDPE), ethylene-vinyl acetate copolymer (EVA), Ionomer (IO) and ethylene-acrylic acid copolymer (EAA), ethylene-ethyl acrylate copolymer (EEA), ethylene-methacrylic acid copolymer (EMA), ethylene-methyl methacrylate copolymer (EMMA), etc. A polyolefin film made of an ethylene-acrylic acid monomer copolymer or a multilayer film made of two or more kinds of resins described above is used. By using a multilayer film, it is possible to achieve excellent piercing properties and piercing sealing properties. For example, LLDPE / MDPE / LLDPE, LLDPE / MDPE / LDPE / MDPE / LLDPE, LLDPE / EVA / LLDPE, LLDPE / IO / LLDPE, LLDPE / EAA / LLDPE, LLDPE / EEA / LLDPE, LLDPE / EMA / LLDPE, LLDPE / EMMA / LLDPE, etc. Co-extrusion is suitable for producing a multilayer puncture-sealing film, and an adhesive resin layer may be provided between the layers as necessary.
[0016]
As polyethylene constituting the puncture sealing film, low density polyethylene has a density of 0.915 to 0.925, and linear low density polyethylene has a density of 0.915 to 0.925. Preferably has a density of 0.930 to 0.935. The thickness of the puncture sealing film is preferably from 0.10 to 0.20 mm, and the ratio of the thickness in the case of a three-layer structure is preferably from 1.0: 0.2 to 0.8: 1.0. .
[0017]
As the puncture sealing film having excellent gas barrier properties, a film in which a plastic layer having excellent gas barrier properties is laminated on the outside of the polyolefin film can be used. As the plastic layer having excellent gas barrier properties, unstretched nylon (CN), polyvinylidene chloride (PVDC) -coated unstretched nylon, ethylene-vinyl alcohol copolymer (EVOH), or the like can be used. For example, CN / adhesive / LLDPE / MDPE / LLDPE, PVDC-coated CN / adhesive / LLDPE / MDPE / LLDPE, EVOH / adhesive / LLDPE / MDPE / LLDPE or the like.
[0018]
The laminated film for producing the tubular body of the tubular container of the first embodiment is composed of a laminate of an outer surface layer, an intermediate layer, and an inner surface layer, and the outer surface layer and the inner surface layer are low density polyethylene (LDPE), wire Biaxially stretched polyethylene terephthalate in which the intermediate layer is a biaxially stretched film, a laminate of aluminum foil (AL) and a biaxially stretched film, or a metal or metal oxide is deposited The thing of the structure which is (PET) etc. is used. As the structure of the laminated film, for example, LLDPE / PET / adhesive / AL / LLDPE, LLDPE / metal oxide vapor deposited PET / LLDPE, LLDPE / PET / metal oxide vapor deposited PET / LLDPE, etc., the thickness of the laminated film Is suitably 300 to 500 μm. The pattern is laminated after printing on the film surface as an intermediate layer by a gravure printing method or the like.
[0019]
Examples of the configuration of the cylindrical body manufactured by extrusion molding of plastic or the configuration of the cylindrical body formed with the spout formed by blow molding include LLDPE / high density polyethylene (HDPE) / LLDPE, LLDPE / Examples thereof include ethylene-vinyl alcohol copolymer (EVOH) / LLDPE, polypropylene (PP) / EVOH / PP, LDPE / polyvinylidene chloride resin / LDPE, and an adhesive layer may be interposed between the layers as necessary. The pattern is formed by, for example, offset printing using an ultraviolet curable ink on the surface after forming a cylindrical body.
[0020]
【The invention's effect】
A pierce-sealing film is thermally bonded with one end of a flexible tubular body having an inner surface having a thermoplastic resin layer in a state where sealing is maintained, and the other end is folded and heat bonded. Since it is a tube-shaped container having the above-described configuration, the contents can be easily taken out by piercing the piercing tube of the piercing and dispensing tool into the piercing sealing film and sucking it out with a pump. Further, since the cylindrical body has flexibility, the volume is reduced as the stored contents are reduced, so that the contents can be taken out without being left behind. By adopting the above-mentioned shape, the container can be slimmed, and is particularly suitable as a container placed on a washstand or a dressing table that requires space saving.
In the above tubular container, the piercing sealing film is made of a polyolefin resin having excellent flexibility, or the piercing sealing film is made of a plastic layer having an excellent gas barrier property on the outer surface side and is flexible on the inner surface side. A tube-shaped container that can ensure the sealing performance at the piercing portion when the piercing tube is pierced into the piercing sealing film, and has excellent storage stability of the contents. It can be.
In the above tubular container, a cylindrical body formed by extruding a plastic body or a cylindrical body in which the opposite edges of a rectangular laminated film are stacked and bonded together is used, and injection molding is performed on the end of the cylindrical body. By forming the spout having an opening by attaching the pierce sealing film to the spout by thermal bonding, the tubular container can be sealed with excellent gas barrier properties and printing effect. It can be.
Further, by manufacturing the cylindrical body with the spout formed by plastic blow molding, the manufacturing process can be simplified and the cost can be reduced.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a first embodiment of a tubular container of the present invention.
2A is a cross-sectional view taken along the line II in FIG. 1, and FIG. 2B is a cross-sectional view perpendicular to FIG.
FIG. 3 is a cross-sectional view corresponding to FIG. 2A, showing a state in which contents are taken out in the first embodiment.
FIG. 4 is a cross-sectional view corresponding to FIG. 2B, showing a second embodiment of the present invention.
FIG. 5 is a cross-sectional view showing a state in which the tubular container according to the first embodiment is stored in a dispensing container and contents are taken out.
[Explanation of symbols]
1, 1 'tube-like container 10 dispensing container body 2, 2' cylindrical body 11 lid 3 side end heat bonding part 12 engagement part 4 bottom heat bonding part 13 pumping tool 5, 5 'spout 14 piercing Tube 6, 6 'Opening 7 Puncture sealing film 8 Outlet heat bonding part

Claims (1)

A lid that can be pierced in a state where the sealing property is maintained is thermally bonded to one end portion of a cylindrical body having a thermoplastic resin layer on the inner surface, and the other end portion is folded and heated. A tube-shaped container that is bonded and contains contents, and is an annular body having a large circular opening at the center on the inner peripheral surface of one end of the cylindrical body that remains open. An outlet is attached and formed by thermally bonding the outer peripheral surface of the spout , and the piercable lid member is thermally bonded to an annular plane that covers the opening of the spout and forms the upper end of the spout , And the sealing property is ensured in the state which stabbed the stab cylinder of the stab and extraction tool, The tubular container characterized by the above-mentioned.

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