JP2004136951A - Composite container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a composite container in which a laminated plastic film packaging bag having a narrow projecting spout at the top end part is inserted into a paper container to retain shape retainability and self-supporting ability, as well as enhancing openability. <P>SOLUTION: The composite container comprises the laminated plastic film packaging bag and the paper container to house the laminated plastic film packaging bag. The upper part of the laminated plastic film packaging bag has the projecting spout narrower than the bag width. The paper container is formed into a sleeve shape, surrounding the outer periphery of the packaging bag. The top end side has a releasing part passing through the spout and a closing part to close the shoulder part from the base of the spout. The composite container is constituted so as to retain the laminated plastic packaging bag in the paper container. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a composite container in which a packaging bag made of a laminated plastic film is inserted into a paperboard sleeve, and more particularly to a composite container which facilitates opening of a take-out port portion and has improved autonomy.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, contents have been housed in a packaging bag made of a laminated film, a part of which protrudes as an outlet, and used as a container which is easy to discharge. However, having a partly projecting spout has the drawback that the height of the packaging bag is increased, the packaging bag is easily bent at the body portion, and it is easy to fall down even as a self-standing bag having a gusset structure at the bottom. In addition, the spout that has a part protruded is narrow and easy to bend, which makes it difficult to discharge the contents. Is disclosed, but there is a drawback that the body portion is bent or falls due to the decrease in the contents (for example, see Patent Document 1).
[0003]
[Patent Document 1]
JP-A-2002-225890
Further, in order to solve the above-mentioned problem, a structure is disclosed in which a body is reinforced and an exterior body for facilitating discharge of contents is attached. A trapezoidal front plate and a back plate are connected to each other at the upper and lower edges of the bottom plate via a fold line, a sealing plate is provided at the tip of the back plate, and the sealing plate is attached to and bonded to the outside of the front plate. An adhesive is applied to the inner surfaces of the front plate and the back plate in advance, and the plastic storage bag is bonded and fixed at a predetermined position. However, in this technique, the spout portion of the bag itself does not protrude, and the operation is complicated because the spout portion of the exposed bag is cut and opened after tearing the corner of the carton. At the same time, it has the drawback that it cannot be resealed for a product that is used repeatedly or a product that requires moisture proofing, even though it is effective as a liquid disposable product or a refill bag. (For example, see Patent Document 2).
[0005]
[Patent Document 2]
JP-A-6-32365 [0006]
Further, as another prior art, there is also disclosed one in which a packaging bag having a spout is formed at the upper central portion of the bag and is packaged with a paper container. However, when opening, the upper part of the packaging bag is cut off with scissors or the like after the lid face plate of the paper container is removed, and the opening operation is complicated, and the upper end of the packaging bag before opening is bent and the paper is opened. Since it is stored in the container, it has a drawback that it is difficult to perform the opening operation because it is folded. In addition, in view of the operability of products that require this kind of squeezing, one-handed operation is common, the width dimension is naturally limited, and in the form where the spout is formed to project in the center, the spout width is narrow. The drawback was that it was difficult to maintain the open state of the narrow-width outlets. (See, for example, Patent Document 3).
[0007]
[Patent Document 3]
JP-A-11-208646 [0008]
[Problems to be solved by the invention]
Therefore, the present invention has been made to solve the above-mentioned problem, and an object of the present invention is to provide a laminated plastic film packaging bag having a spout portion protruding in a narrow width at an upper end portion made of paper. Provided is a composite container having improved openability while maintaining shape retention and self-sustainability by being charged into a container.
[0009]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, the invention of claim 1 is a composite container comprising a laminated plastic film packaging bag and a paper container for storing the laminated plastic film packaging bag, wherein the laminated plastic film packaging bag is provided. An upper portion of the paper container is provided with a spout having a protruding shape smaller than the bag width, the paper container is formed in a sleeve shape surrounding the outer periphery of the laminated plastic film packaging bag, and the upper end side is formed with the spout portion. An opening that passes therethrough, and a closing portion that closes a shoulder from the base of the spout portion, and wherein the laminated plastic film packaging bag is glued to the paper container in the vicinity of the lower side of the spout portion. In a composite container, the packaging bag made of laminated plastic film is a sleeve-shaped paper container, which is given a shape-retaining property, is suspended in the paper container, and is filled. And extended paper container bottom by the bag bottom bulge by the weight of the contents, spindle shaped bottom frame for supporting the entire composite container with is formed, self-supporting properties are imparted.
[0010]
The invention according to claim 2 is a composite container comprising a laminated plastic film packaging bag and a paper container for storing the laminated plastic film packaging bag. An outlet having a narrow and protruding shape, the paper container is formed in a sleeve shape surrounding the outer periphery of the packaging bag made of laminated plastic film, and an upper end side is an open portion passing through the outlet. A composite container having a closing portion that closes a shoulder portion from a spout portion base and a closing portion that is closed in a state where a bottom portion of the paper container is expanded, wherein a packaging bag made of a laminated plastic film is The sleeve-shaped paper container provides shape retention and is held and self-supported by the partially or completely closed bottom in the expanded state. That.
[0011]
The invention according to claim 3 is a composite container comprising a laminated plastic film packaging bag and a paper container for storing the laminated plastic film packaging bag. An outlet having a narrow and protruding shape, the paper container is formed in a sleeve shape surrounding the outer periphery of the packaging bag made of laminated plastic film, and an upper end side is an open portion passing through the outlet. A composite container having a closing portion for closing a shoulder portion from a base of a spout portion, and a bag holding piece provided at a lower end side of the paper container, wherein a packaging bag made of a laminated plastic film is a sleeve-shaped paper. While the mold-retaining property is imparted to the container made of paper, the bag holding piece provided at the lower end is folded into a paper container to hold the packaging bag made of the laminated plastic film. Manufactured container bottom is enhanced autonomy is given by deformation spindle shaped bottom frame for supporting the entire composite container is formed to have.
[0012]
According to a fourth aspect of the present invention, in the composite container according to any one of the first to third aspects, a plastic fitting is attached to a spout of a packaging bag made of a laminated plastic film. By attaching it to the spout, resealability is imparted.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
The present invention will be described below in detail with reference to the drawings and the like.
FIG. 1 is a plan view showing a first embodiment of a packaging bag made of a laminated plastic film accommodated in a composite container of the present invention. FIG. 2 is a plan view showing a second embodiment of a packaging bag made of a laminated plastic film. FIG. 3 is a plan view showing a third embodiment of a packaging bag made of a laminated plastic film. FIG. 4 is a developed plan view showing the first embodiment of the paper container in the composite container of the present invention. FIG. 5 is a developed plan view showing a second embodiment of the paper container. FIG. 6 is a developed plan view showing the third embodiment of the paper container. FIG. 7 is a perspective view showing a state in which a packaging bag filled with a product is stored in a paper container in one embodiment of the composite container of the present invention. FIG. 8 is a perspective view showing a use state in which the packaging bag is opened and opened in the same embodiment. FIG. 9 (A) is an embodiment of the composite container of the present invention, and is a cross-sectional view taken along the line XX ′ in a state where a packaging bag made of a laminated plastic film is stored in the first example of the paper container. Sectional view taken along the line XX 'of the second embodiment of the paper container in which the packaging bag made of the laminated plastic film is stored. (C) shows the packaging bag made of the laminated plastic film in the third embodiment of the paper container. FIG. 11 is a cross-sectional view taken along line XX ′ in a state of being performed.
[0014]
FIG. 1 is a plan view showing a first embodiment of a laminated plastic film packaging bag accommodated in a composite container according to the present invention, which is made of a laminated plastic film and has a notch slightly larger than a right angle at one corner of a square. The notched shoulder has a gentle slope, and the upper end side of the narrow width spout formed by the notch also has a gentle slope. , 6a, 6b are formed and sealed, and a plastic occluding tool 7 is attached to the inside of the heat bonding portion 3 at the upper end side of the spout in a direction orthogonal to the heat bonding portion 4, A notch 8 for tearing and opening the bag is formed between the thermal bonding portion 3 at the side end of the bonding portion 4 and the jig 7. As the jaw 7, an ordinary plastic jaw that can be opened and closed by engaging a male nail and a female nail made of polyethylene or the like is used. The plastic jaw 7 is necessary for contents that are repeatedly opened and closed repeatedly, especially for contents that are required to be moisture-proof, etc., for example, a single-use content or a content for refilling. In the case of a thing, it is not necessary to provide.
[0015]
FIG. 2 is a plan view showing a second embodiment of a packaging bag made of a laminated plastic film accommodated in the composite container of the present invention, in which a tape-shaped laminated plastic film folded in two at the bottom is inserted with the folded portion inside. A bag whose peripheral edge is thermally bonded to an opposing laminated plastic film and whose peripheral edge is formed with heat-bonded portions 2 ', 3, 4, 5, 6a, and 6b, and which is sealed. The configuration is basically the same as that of the embodiment. In the second embodiment, the bottom is of a gusset type, so that the capacity of the contents is increased as compared with the first embodiment, and the type has a self-sustaining property. In the case of contents having a large weight, there is a tendency to fall down easily, and by providing self-sustainability by a paper container as in the present invention, it is possible to handle contents having a large liquid or weight.
[0016]
FIG. 3 is a plan view showing a third embodiment of a laminated plastic film packaging bag accommodated in the composite container of the present invention, which is made of a laminated plastic film and has a rectangular shape with a diagonal notch formed at one corner. A heat-sealed portion formed on the peripheral edge of the bag to be sealed, and a heat-bonded portion 3 is provided at the upper end formed by the oblique notch; A plastic zipper 7 is attached to the inside of the bonding portion 3 in a direction orthogonal to the thermal bonding portion 4, and the bag is torn between the thermal bonding portion 3 and the locking device 7 at the side end of the thermal bonding portion 4 to open. Notch 8 is formed.
[0017]
As the film used in the above-described laminated plastic film packaging bag, a configuration in which a base material layer and a thermoadhesive resin layer are laminated, or a configuration in which a base material layer, a gas barrier layer, and a thermoadhesive resin layer are laminated can do. As the substrate layer, a biaxially stretched film such as biaxially stretched polyethylene terephthalate, biaxially stretched polypropylene, or biaxially stretched nylon is used. Low-density polyethylene, linear low-density polyethylene, medium-density polyethylene, high-density polyethylene, ethylene-vinyl acetate copolymer, polypropylene, aluminum-deposited linear low-density polyethylene, aluminum-deposited polypropylene, etc. are used as the heat-adhesive resin layer. You. As the gas barrier layer, aluminum foil, aluminum-deposited biaxially stretched polyethylene terephthalate, silicon oxide-deposited biaxially stretched polyethylene terephthalate, or the like is used.
[0018]
Examples of the configuration of the plastic film include biaxially oriented polyethylene terephthalate / polypropylene, biaxially oriented polyethylene terephthalate / linear low-density polyethylene, biaxially oriented polyethylene terephthalate / aluminum-deposited polypropylene, biaxially oriented polypropylene / polypropylene, and biaxially oriented polypropylene / Aluminum evaporated polypropylene, biaxially oriented polyethylene terephthalate / aluminum foil / linear low density polyethylene, biaxially oriented polyethylene terephthalate / aluminum foil / polypropylene, biaxially oriented nylon / aluminum foil / linear low density polyethylene, biaxially oriented polyethylene terephthalate / Aluminum-evaporated biaxially stretched polyethylene terephthalate / linear low-density polyethylene, etc. Use, known laminated film used for beverage or sundries, either can be used.
[0019]
In addition, the shape is not limited to the above-described embodiment as long as the shape is such that one corner of a square is cut out and a narrow width spout is formed. It is possible to use a method of cutting each individual bag after heat-bonding them in a rectangular shape in a state where they are turned upside down and butted against each other. As in the example, it is desirable that the width of the spout is half of the full width of the bag.
[0020]
FIG. 4 is an exploded plan view showing a first embodiment of the paper container in the composite container of the present invention, in which rectangular side plates 11, 12 and a sticking plate 13 are continuously provided via vertical folding lines L1, L2. An upper end closing portion attaching plate 14 is provided through a horizontal fold line L3 at a width substantially half the width from one end of the upper side of the side plate 12 on the attaching plate 13 side. Near the upper end sides of the side plates 11 and 12, the inner bonding portion 20 indicated by a dotted line and having a width smaller than substantially half the width of the side plates and symmetrical to the vertical fold line L1 is a packaging bag made of a laminated plastic film to be stored. The part to be stuck with an adhesive or the like is shown.
[0021]
FIG. 5 is an exploded plan view showing a second embodiment of the paper container in the composite container of the present invention, in which rectangular side plates 11, 12 and a sticking plate 13 are continuously provided via vertical folding lines L1, L2. An upper end closing portion attaching plate 14 is provided through a horizontal fold line L3 at a width substantially half the width from one end of the upper side of the side plate 12 on the attaching plate 13 side. At the center of the lower end side of the side plate 11, a bottom component plate 15 is provided with a width smaller than the width of the side plate via a horizontal folding line L4, and further, an insertion piece 17 is extended via a horizontal folding line L6, At the center of the lower end side of the side plate 12 at a position facing the bottom component plate 15, a bottom overlap plate 16 is provided via a horizontal folding line L 5, and the central portion of the horizontal folding line L 5 is connected to the insertion piece 17. Corresponding insertion grooves 18 are provided.
[0022]
FIG. 6 is an exploded plan view showing a third embodiment of the paper container in the composite container of the present invention, in which rectangular side plates 11, 12 and a sticking plate 13 are continuously provided via vertical folding lines L1, L2. An upper end closing portion attaching plate 14 is provided through a horizontal fold line L3 at a width substantially half the width from one end of the upper side of the side plate 12 on the attaching plate 13 side. A folding plate 19 having a width slightly smaller than the width of the side plate and a length slightly larger than an expanded dimension formed when the lower end of the paper container is formed at the completion of assembly is provided at the center of the lower end side of the side plate 11 via a horizontal folding line L7. Is provided.
[0023]
Next, before assembling the composite container of the present invention using the first embodiment of the paper container, the composite container of the present invention is folded in advance using the vertical folding lines L1, L2 and the horizontal folding line L3, and the adhesive plate 13 is attached to the side plate 11 in advance. At the same time, the upper end closing portion sticking plate 14 is stuck to a predetermined position of the upper end of the side plate 11 to form a deformable sleeve-shaped paper container 10a closed from one end of the upper end side to substantially the center. An adhesive is applied to the vicinity of the bottom of the spout on both the front and back sides of the packaging bag made of the laminated plastic film which has been pre-filled with the contents, and the spout is formed from the bottom of the paper container 10a to the upper end of the paper container 10a. It is inserted so as to be exposed from the paper container 10a through the open portion of the side, and is adhered and bonded at the positions of the inner surface adhesive portions 20, 20 to complete the assembly shown in FIG. . Specifically, as shown in FIG. 9 (A) XX ′ line sectional view, the packaging bag made of a laminated plastic film is suspended inside the paper container 10a, and the bag is filled with its own weight. When the lower part expands, the lower end of the paper container 10a also expands, thereby forming a spindle-shaped bottom frame that supports the entire composite container, and the composite container becomes self-supporting.
[0024]
As described above, it is preferable that the packaging bag made of a laminated plastic film, which is pre-filled with the content, is stored and fixed in a paper container that is previously adhered and has a deformed sleeve shape, since the content can be easily filled, A filling operation can be performed after the laminated plastic film packaging bag is attached and bonded in a deformed sleeve shape while being wrapped in a blank paper container. Further, from the point of mechanization, it is also possible to supply a packaging bag made of a laminated plastic film pre-filled with contents, and to fold, attach and attach a blank paper container to form a composite container.
[0025]
Next, although a perspective view is omitted, in assembling the composite container of the present invention using the second embodiment of the paper container, the composite container of the present invention is folded and pasted in advance using the vertical folding lines L1, L2 and the horizontal folding line L3. The attachment plate 13 is attached and joined to the side plate 11, and the upper end closing portion attachment plate 14 is attached and attached to a predetermined position at the upper end of the side plate 11 to form a deformed sleeve in which one end of the upper end side is substantially closed from the center. The packaging bag made of laminated plastic film, which is pre-filled with contents, is placed in the paper container 10b, and the outlet is passed through the opening at the upper end of the paper container 10b from the bottom of the paper container 10b. After being inserted so as to be exposed from the container 10b, the transverse fold lines L5, L4 and L6 are bent, and the insertion piece 17 is inserted into the insertion groove 18 while the bottom component plate 15 is superimposed on the bottom overlap plate 16; Paper container 10 Closing the bottom partially. By this operation, the bottom of the paper container 10b is expanded into a substantially spindle shape, and as shown in FIG. 9 (B), the packaging bag made of the laminated plastic film is stored and held in the paper container 10b, and the composite container becomes Become independent. Since the composite container using the paper container of the second embodiment is of a type in which the bottom is closed, it is excellent in the holding property of the laminated plastic packaging bag filled with the contents. The structure for closing the bottom of the paper container can be selected from a structure for closing the entire bottom and a structure by gluing, and is not limited to the above-described embodiment.
[0026]
Next, although a perspective view is also omitted, when assembling the composite container of the present invention using the third embodiment of the paper container, the composite container of the present invention is previously folded using the vertical folding lines L1, L2 and the horizontal folding line L3. A sticking plate 13 is attached to the side plate 11 and an upper end closing portion sticking plate 14 is attached to a predetermined position of an upper end of the side plate 11 to form a deformed sleeve in which one end of the upper end is closed from substantially the center. The packaging bag made of laminated plastic film pre-filled with the contents is placed in the paper container 10c, and the spout port is passed from the bottom of the paper container 10c through the opening at the upper end side of the paper container 10c. After being inserted so as to be exposed from the paper container 10c, the folding plate 19 is bent using the horizontal folding line L7 while the bottom portion of the paper container 10c is slightly excessively expanded, and the laminated plastic film packaging bag is held. As shown in FIG. 9 (C), the folded plastic bag is stored in the paper container 10c as shown in FIG. 9 (C). Thus, the composite container becomes self-supporting. The composite container using the paper container of the third embodiment is suitable for relatively lightweight contents. In the assembling operation, the holding operation of the laminated plastic film packaging bag is performed by a one-touch folding operation using the folding plate 19. It has excellent workability.
[0027]
FIG. 8 is a perspective view showing the use state in which the laminated plastic film packaging bag is opened and opened in the embodiment of the composite container of the present invention shown in FIG. By using a notch 8 provided between the thermal bonding portion 3 at the side end of the thermal bonding portion 4 and the jig 7 to cut and open the tip of the laminated plastic film packaging bag horizontally, the contents can be taken out or Although it can be poured out, in the paper container of the first embodiment of the present invention, the middle of the upper end side of the paper container 10a is closed, and the laminated plastic is provided by the inner surface adhesive portion 20 provided near the upper end side open portion. Since the film packaging bag and the paper container 10a are adhered and bonded, pressing the paper container 10a at the upper ends on both sides as indicated by arrows in the figure deforms the open upper end of the paper container 10a into a spindle shape. And this transformation Note the outlet portion of the laminated plastic film wrapping bag I also opening. In the paper containers of the second embodiment and the third embodiment, although the inner surface bonding portion 20 provided near the above-mentioned upper end side open portion is not provided, the pressing of the paper container on both side upper ends causes the paper container of the first embodiment. In substantially the same manner as the paper container, the upper end opening portion of the paper container is deformed into a spindle shape, and the spout port of the laminated plastic film packaging bag is also opened well with this deformation.
[0028]
【The invention's effect】
As described above, the composite container of the present invention stores and holds a laminated plastic film packaging bag having a spout having a protruding shape narrower than the bag width at the upper end in a deformed sleeve-shaped paper container. In addition to having a self-supporting or unstable self-supporting laminated plastic film packaging bag with self-supporting and shape-retaining properties, it has the effect of improving the openability of the narrow and protruding spout. . Having self-reliance and shape-retaining properties not only improves the consumer's feeling of use as a container, but also facilitates handling at retailers, and tends to occur in the case of film packaging bags. A paper container having no deformation of the shape and the display surface is excellent in printing effect and appearance design.
[0029]
In addition, when used for contents that are used by being repeatedly opened and closed repeatedly by the attachment of the occlusal tool, in particular, contents that are required to be moisture-proof, etc., with a decrease in the contents in the film-made packaging bag, Although there were problems such as the appearance shape and design being impaired and the storage condition being deteriorated, according to the present invention, even if the content is reduced in the laminated plastic film packaging bag which is stored and held, paper There is an effect that the opening shape is maintained without impairing the appearance shape and design of the container.
[Brief description of the drawings]
FIG. 1 is a plan view showing a first embodiment of a laminated plastic film packaging bag stored in a composite container of the present invention.
FIG. 2 is a plan view showing a second embodiment of the laminated plastic film packaging bag stored in the composite container of the present invention.
FIG. 3 is a plan view showing a third embodiment of a laminated plastic film packaging bag stored in the composite container of the present invention.
FIG. 4 is a developed plan view showing the first embodiment of the paper container in the composite container of the present invention.
FIG. 5 is a developed plan view showing a second embodiment of the paper container in the composite container of the present invention.
FIG. 6 is a developed plan view showing a third embodiment of the paper container in the composite container of the present invention.
FIG. 7 is a perspective view showing a state in which a packaging bag filled with a product is stored in a paper container in one embodiment of the composite container of the present invention.
FIG. 8 is a perspective view showing a use state in which the packaging bag is opened and opened in one embodiment of the composite container.
FIG. 9A is a cross-sectional view taken along line XX ′ of a first embodiment of a paper container in which a packaging bag made of a laminated plastic film is housed, according to an embodiment of the composite container of the present invention.
(B) is a sectional view taken along the line XX 'of the second embodiment of the paper container in which a packaging bag made of a laminated plastic film is stored.
(C) is a cross-sectional view taken along line XX ′ of the third embodiment of the paper container in which a packaging bag made of a laminated plastic film is stored.
1a, 1b, 1c Laminated plastic film packaging bag 2, 3, 4, 5, 6, 6a, 6b Thermal bonding part 7 Plastic jaw 8 Notch 9 Laminated plastic film folded part 10a, 10b, 10c Paper container 11, Reference Signs List 12 Side plate 13 Adhering plate 14 Upper end closing portion adhering plate 15 Bottom component plate 16 Bottom overlapping plate 17 Insertion piece 18 Insertion groove 19 Folding plate 20 Inner surface adhesive portion

Claims (4)

A composite container comprising a laminated plastic film packaging bag and a paper container for storing the laminated plastic film packaging bag, wherein the upper part of the laminated plastic film packaging bag has a protruding shape narrower than the bag width. An outlet portion, the paper container is formed in a sleeve shape surrounding the outer periphery of the laminated plastic film packaging bag, and an upper end side has an open portion passing through the spout portion, and a shoulder portion from the spout portion base portion. Wherein the packaging bag made of laminated plastic film is glued to the paper container near the lower side of the spout. A composite container comprising a laminated plastic film packaging bag and a paper container for storing the laminated plastic film packaging bag, wherein the upper part of the laminated plastic film packaging bag has a protruding shape narrower than the bag width. An outlet portion, the paper container is formed in a sleeve shape surrounding the outer periphery of the laminated plastic film packaging bag, and an upper end side has an open portion passing through the spout portion, and a shoulder portion from the spout portion base portion. And a closing part for closing the paper container in a state where the bottom of the paper container is expanded. A composite container comprising a laminated plastic film packaging bag and a paper container for storing the laminated plastic film packaging bag, wherein the upper part of the laminated plastic film packaging bag has a protruding shape narrower than the bag width. An outlet portion, the paper container is formed in a sleeve shape surrounding the outer periphery of the laminated plastic film packaging bag, and an upper end side has an open portion passing through the spout portion, and a shoulder portion from the spout portion base portion. And a bag holding piece provided on a lower side of the paper container. 4. The composite container according to claim 1, wherein a plastic jaw is attached to a spout of the packaging bag made of laminated plastic film.

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