JP2005088940A - Paper-made container for liquid with handle function - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a paper-made container for a liquid with a handle function which does not need a separate member such as a tapelike handle for a gable-top paper-made container for a liquid and can be carried without deforming the container the case of particularly even in a large-sized paper-made container for a liquid. <P>SOLUTION: The gable-top paper-made container for a liquid consists of a barrel made of four sidewall panels, a rectangular bottom, and a gable-shaped head, wherein top ribs are butt-sealed on the top of the head to form a top seal. The container is characterized by a handle hole provided on the top seal. The sidewall panel is rectangular, and a container body is a quadratic prism. Alternatively, the sidewall panel is a trapezoid with an upper side longer than a lower side, and the container body is inverted truncated quadratic pyramid. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a liquid paper container of a gable roof type whose head is a gable roof type, and relates to a liquid paper container having a handle function so as to facilitate handling.

  Conventionally, a gable-top type liquid paper container has been widely used. As shown in FIG. 7, this gable-top type liquid paper container P is a liquid paper container having a gable-shaped roof with a top rib formed with a palm seal and a top seal portion 3, and milk and juice. It is used as a container for storing liquids such as liquor. The gable-top type liquid paper container P is cylinder-bonded before being filled with contents, and is stored and transported in a state of being folded flat. In fact, when filling the contents, the folded liquid paper container is supplied to the high-speed filling and packaging machine, the bottom is formed, the contents are filled, and the head 2 is hermetically sealed with the top seal 3 doing.

In addition, recently, large liquid paper containers are also used for containing liquids such as seasonings, oils and fats, liquid detergents and the like having an internal volume of 1.8 liters or more, for example, 3 liters, 5 liters, etc. It is supposed to be. In the case of such a large liquid paper container, the container itself becomes large, and the weight of the liquid in the contents also increases. Therefore, as in a conventional small liquid paper container, transportation, pouring out the contents, etc. In view of this, it is considered that a tape-like handle is attached to the liquid paper container and the liquid paper container is easily handled by holding the handle by hand. For example, as shown in FIG. 7, a shape in which both ends of a tape-like handle T are attached to and attached to the surfaces of the left and right side wall panels has been proposed (see, for example, Patent Document 1).
Japanese Patent No. 3248542

  However, in the case of a shape in which a tape-like handle is attached to the liquid paper container, the load applied when the container is suspended is directly applied to the tape adhering portion, so that it is easy to peel off and difficult to handle. Moreover, when it attaches to the center upper part of a front wall panel, a design is disturbed and it is unpreferable on an external appearance. Furthermore, the large liquid paper container is heavy, and there is a problem that when the liquid paper container is lifted by the handle, the front and rear wall panels to which the handle is bonded are deformed and the handle is easily peeled off. In either case, there is a problem that a tape-like handle is required as a separate member, and an attachment process for the handle is required, resulting in an increase in cost.

  The present invention does not require a separate member such as a tape-like handle in the gable top type liquid paper container, and particularly has a liquid paper container without deformation even in the case of a large liquid paper container. It is an object of the present invention to provide a liquid paper container with a handle function that can handle.

  In order to achieve the above-mentioned object, the present invention comprises a trunk portion composed of four side wall panels, a rectangular bottom portion, and a gable roof-shaped head portion, and a top rib is jointly sealed on the upper portion of the head portion. A gable top type liquid paper container in which a top seal portion is formed, wherein the top seal portion is provided with a handle hole, and the side wall panel is rectangular. The container body has a quadrangular prism shape, or the side wall panel has a trapezoid whose upper side is longer than the lower side, and the container body has an inverted quadrangular pyramid shape.

  As described above, the liquid paper container with a handle function according to the present invention is a gable-top type liquid paper container having a head portion, and has a top rib at the top of the head. Since the top seal portion provided with the handle hole is formed, the finger can be inserted into the handle hole and held by the handle. Therefore, particularly in the case of a large liquid paper container, it has an effect that the handling is convenient.

  In addition, by making the shape of the barrel part into an inverted quadrangular pyramid shape, it becomes possible to stack in a state where the bottom portion is formed by pasting the barrel before filling, and after filling the contents, the head seal is sealed It is possible to correspond to a simple filling and packaging machine that performs only the process, the equipment cost can be reduced, and it can be used for a liquid paper container of a small-volume production product.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a liquid paper container with a handle function according to the present invention will be described below in detail with reference to the drawings. In addition, the same code | symbol is attached | subjected to the same or similar part over several drawings.

  FIG. 1 is a perspective view showing an example of a first embodiment of a liquid paper container with a handle function according to the present invention, and FIG. 2 shows a first embodiment of a liquid paper container with a handle function according to the present invention. FIG. 3 is a developed view showing a blank of one embodiment, FIG. 3 is a perspective view showing one embodiment of a liquid paper container with a handle function of the present invention, and FIG. 4 is a handle function of the present invention. FIG. 5 is a top view, a front view, and a side view showing an example of the second embodiment of the attached liquid paper container, and FIG. 5 shows an embodiment of the second embodiment of the liquid paper container with a handle function according to the present invention. FIG. 6 is a development view showing a blank of the example, FIG. 6 is a diagram for explaining a process of manufacturing one example of the second embodiment of the liquid paper container with a handle function of the present invention, and FIG. It is a perspective view which shows the example of this liquid paper container.

    As shown in FIG. 1, the liquid paper container 1A with a handle function according to the first embodiment of the present invention has a quadrangular prism shape in which the body 4 is composed of four side wall panels, and the head 2 is a gable. This is a roof-shaped gable-top liquid paper container. Then, the top rib is sealed at the top of the head 2 to form a top seal portion 3 wider than usual, and the top seal portion 3 is provided with a handle hole 3a. A finger can be inserted into the handle hole 3a to hold the liquid paper container 1A with a handle function by hand. As described above, in the liquid paper container 1A with a handle function, the handle function is given to the gable top type liquid paper container.

  FIG. 2 is a development view of the blank 10A of the liquid paper container 1A with a handle function according to the present invention. The blank 10 </ b> A includes a blank body portion D, a blank head portion T, a blank top rib portion R, and a blank bottom portion B.

  In the blank body portion D, rectangular side wall panels 11, 12, 13, and 14 and an adhesive margin 15 are sequentially arranged via broken lines a, b, c, and d.

  In addition, the blank head T is formed on the upper side of the side wall panel 11 with an inclined panel 11T continuously provided via a fold line e, the folded panel 12T provided continuously with the upper side of the side wall panel 12 via a fold line f, and the upper side of the side wall panel 13. The folding panel 13T is connected through the folding line g, and the folding panel 14T is connected to the upper side of the side wall panel 14 through the folding line h. The folding panel 12T and the folding panel 14T include the folding panel 12T, Diagonal broken lines i, i, j, and j that fold 14T obliquely outward are provided.

  The blank top rib portion R is composed of top ribs 11R, 12R, 13R, and 14R that form a top seal portion 3 that is connected to the top side of each top panel via a broken line k. The top rib 11R and the top rib 13R are wider than the top rib 12 and the top rib 14, and a handle hole 3a is provided in the widened portion. The handle hole 3a has a shape and size such that a plurality of fingers can be inserted and the liquid paper container 1 with a handle function can be held by hand. For example, the handle hole 3a has a rectangular shape, an oval shape, etc., and a width of 15 to 25 mm. The length is preferably in the range of 60 to 80 mm.

  Further, the blank bottom portion B is composed of a bottom panel continuously connected to the lower side of each side wall panel of the blank body portion D via a broken line l so that a flat bottom portion 5 without liquid leakage is formed by heat sealing. It has become.

  The inclined panel 13 </ b> T is provided with a spout hole 16 for fitting the spout tool 6.

  If the panel to which the adhesive margin 15 is pasted in the blank head T is the folding panel 12 (or the folding panel 14), the folding panel 12 (or the folding panel 14) is bent when the liquid paper container 1A with a handle function is assembled. Since it becomes difficult, it is preferable to use a shape in which the adhesive margin 15 and the folding panel 12 (or the folding panel 14) are not bonded to each other.

    As shown in FIGS. 3 and 4, the liquid paper container 1B with a handle function according to the second embodiment of the present invention is a vertical surface of the trunk of the liquid paper container 1A with a handle function according to the first embodiment. In contrast to the quadrangular prism shape made of the side wall panels, it has an inverted quadrangular truncated pyramid shape made up of tapered and trapezoidal side wall panels 11, 12, 13, 14, and the head 2 has a gable roof. This is a gable top type liquid paper container. Then, the top rib is sealed at the top of the head 2 to form a top seal portion 3 wider than usual, and the top seal portion 3 is provided with a handle hole 3a. A handle function is imparted to the gable top type liquid paper container so that it can be held by hand by inserting a finger into the handle hole 3a, thereby forming the liquid paper container 1B with a handle function of the present invention.

  FIG. 5 is a development view of the blank 10B of the liquid paper container 1B with a handle function according to the present invention. The blank 10B includes a blank body D, a blank head T, a blank top rib R, and a blank bottom B.

  In the blank body D, the side wall panels 11, 12, 13, and 14 and the adhesive margin 15 are successively arranged via the polygonal lines a, b, c, and d, but unlike the liquid paper container 1A with a handle function, the side walls The shape of the panels 11, 12, 13, and 14 is not a rectangle, but a trapezoid whose upper side is longer than the lower side.

  In addition, the blank head T is connected to the upper side of the side wall panel 11 via the fold line e and the upper side of the side wall panel 12 via the fold line f, similarly to the liquid paper container 1A with a handle function. The folded panel 12T, the inclined panel 13T connected to the upper side of the side wall panel 13 via the broken line g, and the folded panel 14T connected to the upper side of the side wall panel 14 via the folded line h are not rectangular. The upper side is trapezoidal longer than the lower side. The upper folding panel 12T and the folding panel 14T are respectively provided with oblique folding lines i, i, j, j for folding the folding panels 12T, 14T diagonally outward.

  Further, the blank top rib portion R, like the liquid paper container 1A with a handle function, is a top rib 11R, 12R, 13R that forms a top seal portion 2a that is connected to the top side of each top panel via a broken line k. 14R. The top rib 11R and the top rib 13R are wider than the top rib 12 and the top rib 14, and a handle hole 3a is provided in the widened portion.

  Further, the blank bottom portion B is composed of a bottom panel continuously connected to the lower side of each side wall panel of the blank body portion D via a broken line l so that a flat bottom portion 5 without liquid leakage is formed by heat sealing. It has become.

  The inclined panel 13 </ b> T is provided with a spout hole 16 for fitting the spout tool 6.

  The material used for the liquid paper container with a handle function according to the present invention comprises a laminate mainly composed of paper, and an inner layer whose innermost layer is a heat-adhesive resin layer is provided on one side of the paper and an innermost layer is provided on the other side. Basically, the outer layer includes an outer layer which is a heat-adhesive resin layer. And a barrier layer can also be laminated | stacked between paper and a heat bonding resin layer.

  In addition, the thermoplastic resin used for the innermost and outermost layers of the laminate is capable of protecting the contents, especially the function that does not leak even when liquid substances are added, and can also be assembled by bonding with a heat seal. It is necessary to have a function to make. Specifically, for example, low density polyethylene, medium density polyethylene, high density polyethylene, linear (linear) low density polyethylene, ethylene-α / olefin copolymer polymerized using a metallocene catalyst, polypropylene, ethylene -Vinyl acetate copolymer, ionomer resin, ethylene-acrylic acid copolymer, ethylene-ethyl acrylate copolymer, ethylene-methacrylic acid copolymer, ethylene-methyl methacrylate copolymer, ethylene-propylene copolymer An acid-modified polyolefin resin obtained by modifying a polyolefin resin such as a coalescence, methylpentene polymer, polybutene polymer, polyethylene or polypropylene with an unsaturated carboxylic acid such as acrylic acid, methacrylic acid, maleic acid, maleic anhydride, fumaric acid, itaconic acid, Polyvinyl acetate resin Poly (meth) acrylic resins, polyvinyl chloride resins, polyester resins, a resin such as nylon resin may be used. Among these, an ethylene-α / olefin copolymer polymerized using a metallocene catalyst is stretchable, hardly generates cracks and pinholes, and can be suitably used.

  Using the above-mentioned heat-adhesive resin, for example, using an extruder, one or more of the above resins are extruded into a single layer or multiple layers between the paper and the barrier layer, and melt extruded resin A layer is formed, and the paper and the barrier layer can be laminated via the melt-extruded resin layer.

  In the liquid paper container with a handle function of the present invention, the thickness of the heat-adhesive resin layer is preferably in the range of 20 to 200 μm, and more preferably in the range of 25 to 100 μm. If the film thickness is less than 25 μm, it is not preferable because the pinhole tends to be generated, and if it exceeds 200 μm, the moldability of the bottom part 5 and the head part 2 becomes very bad. is there.

  In addition, as a barrier layer constituting the liquid paper container with a handle function of the present invention, it has excellent properties in mechanical, physical, chemical and others, in particular, it has strength and toughness, and is heat resistant. A resin film or sheet having properties can be used. Specifically, for example, polypropylene resin, cyclic polyolefin resin, fluorine resin, polystyrene resin, acrylonitrile-styrene copolymer (AS resin), acrylonitrile-butadiene-styrene copolymer (ABS resin), polychlorination Vinyl resins, fluorine resins, poly (meth) acrylic resins, polycarbonate resins, polyester resins such as polyethylene terephthalate and polyethylene naphthalate, polyamide resins such as various nylons, polyimide resins, polyamideimide resins, Fill of various resins such as polyaryl phthalate resin, silicone resin, polysulfone resin, polyphenylene sulfide resin, polyether sulfone resin, polyurethane resin, acetal resin, cellulose resin, etc. Or it can be used sheets. Furthermore, a film in which a metal vapor deposition film or an inorganic oxide film is provided on these films, a metal foil, or the like can be used.

  The specific material structure is as follows: from the surface side, polyethylene resin layer / paper layer / polyethylene resin layer, foamed polyethylene resin layer / paper layer / polyethylene resin layer, polypropylene resin layer / paper layer / polypropylene resin layer, polyethylene resin layer / Paper layer / polyester resin layer, polyester resin layer / paper layer / polyester resin layer, polyethylene resin layer / paper layer / ethylene-acrylic acid copolymer layer / aluminum foil / polyethylene resin layer, polyethylene resin layer / paper layer / polyethylene layer / Polyester layer / polyethylene resin layer, polyethylene resin layer / paper layer / polyethylene layer / polyester layer / polyethylene resin layer (film), polyethylene resin layer / paper layer / polyethylene layer / aluminum foil / biaxially stretched polyester layer / polyethylene resin layer , Polyethylene resin layer / paper layer / Riechiren layer / vapor deposited aluminum layer / polyester layer / polyethylene resin layer, such as a polyethylene resin layer / paper layer / polyethylene resin layer / silica-deposited layer / polyester layer / polyethylene resin layer (film) and the like.

  Next, the spout tool 6 used in the present invention is not particularly limited, and a known plastic molding can be used.

  Next, a method for producing the liquid paper container with a handle function of the present invention will be described.

  1 A of liquid paper containers with a handle function of 1st embodiment can be manufactured by the method similar to a well-known liquid paper container. First, a blank 10A as shown in FIG. 2 before assembling the liquid paper container 1A with a handle function is produced. In the punching process for producing the blank 10A, the handle hole 3a and the spout hole 16 are processed simultaneously. Next, the blank 10A is used for box making with a box making machine to produce a folded liquid paper container 1A with a handle function.

  Next, in the filling manufacturer of the contents, the liquid paper container 1A with a handle function in a folded state is supplied to the filling and packaging machine, raised to form the bottom 5 and filled with the contents. Folding panels 12T and 14T facing each other connected to the upper end of 14 are folded inward along the oblique fold lines, respectively, and simultaneously facing inclined panels 11T and 13T connected to the upper ends of the remaining side wall panels 11 and 13 are folded inward. 6c, the top ribs 11R to 14R connected to the upper ends of the inclined panels 11T and 13T and the folding panels 12T and 14T, respectively, are opposed to each other with the folded top ribs 12R and 14R interposed therebetween. By forming a top seal portion 3 provided with a handle hole 3a by jointly sealing 11R and 13R It is possible to manufacture the handle function liquid paper container 1 gable-top type which can be held in the hand as shown in Figure 1.

  In this step, the spout tool 6 can also be attached. This attachment method is a general method, and the flange of the spout tool 6 is bonded to the inner peripheral edge of the spout hole 16 of the liquid paper container 1 with a handle function by heat sealing, impulse sealing or the like.

  Next, a method for manufacturing the liquid paper container 1B with a handle function according to the second embodiment of the present invention will be described. First, a blank 10B as shown in FIG. 5 before assembling the liquid paper container 1B with a handle function is produced. In the punching process for producing the blank 10B, the handle hole 3a and the spout hole 16 can be processed simultaneously. Next, the blank 10B is used to produce a liquid paper container 1B with a handle function in a folded state, and the liquid paper container 1B with a handle function in a folded state is raised, As shown in FIG. 6A, the flat bottom portion 5 is formed by assembling into an inverted quadrangular pyramid shape that opens upward and consists of four side wall panels 11 to 14. In this state, as shown in FIG. 6B, stacking can be performed, and a shape that does not take up space for storage, transportation, and the like can be obtained.

  Next, in the filling manufacturer of contents, the liquid paper container 1B with a handle function in a stacked state is supplied to the filling and packaging machine, and after filling the contents, the facing connected to the upper ends of the side wall panels 12 and 14 is performed. As shown in FIG. 6C, the folding panels 12T and 14T to be folded are folded inward along the oblique folding lines, and the opposing inclined panels 11T and 13T connected to the upper ends of the remaining side wall panels 11 and 13 are folded at the same time. Further, the top ribs 11R to 14R connected to the upper ends of the inclined panels 11T and 13T and the folding panels 12T and 14T, respectively, and the top ribs 11R and 13R facing each other so as to sandwich the folded top ribs 12R and 14R are jointly sealed. By forming the top seal portion 3 provided with the handle hole 3a, as shown in FIG. It is possible to produce an inverse truncated pyramid shape of the handle function liquid packaging cartons 1B in gable-top type which can have at.

  In the liquid paper container 1B with a handle function of the second embodiment, it is possible to cope with an automatic filling and packaging machine that consistently performs formation of the bottom 5, filling of contents, and top sealing.

  Applications of the liquid paper container with a handle function of the present invention include milk, juice, alcoholic beverages, fats and oils, seasonings, liquid detergents and the like. In particular, it is effective as a large liquid paper container.

  Next, the liquid paper container with a handle function of the present invention will be described below with a specific example.

As a material, a laminate having a structure of polyethylene resin layer 35 μm / board paper 440 g / m ² / ethylene-methacrylic acid copolymer 20 μm / aluminum layer 6 μm / polyethylene terephthalate resin layer 12 μm / polyethylene resin layer 20 μm / polyethylene film layer 60 μm from the outer surface. First, normal printing is performed on the outer surface side, a blank is produced by a normal punching process using a punching die, and then each side panel is folded and bonded to the paste margin to form a tapered cylinder. Each bottom panel was bent inward to form a bottom portion, and a liquid paper container 1B with a handle function in a state before filling with the contents of an inverted quadrangular pyramid shape having an open top was obtained. In this state, stacking was possible, and it was possible to obtain a shape that does not take up space for storage, transportation, and the like. Next, in the content filling manufacturer, after the stacked liquid paper containers 1B with handle functions are supplied to the filling and packaging machine and filled with the contents, the opposing folding panels are respectively placed along the oblique folding lines. Folded outward, simultaneously folded the remaining opposing top panel inward, folded the opposing top rib, and formed a top seal part with a handle hole by sandwiching and sealing with the remaining opposing top rib to sandwich it, As shown in FIG. 1, it has a gable roof-shaped head, the container body has an inverted quadrangular pyramid shape (the bottom is 140 × 140 mm, the top is 160 × 160 mm, the height is 180 mm), and the internal capacity is 4 A liquid paper container 1B with a handle function filled with 0.0 liter of Chinese seasoning was prepared.

  By inserting a finger into a handle hole provided in the top seal portion of the liquid paper container 1B with a handle function of this embodiment, the liquid paper container 1B with a handle function filled with the contents could be easily held by hand. In addition, stacking can be performed with the bottom formed by pasting the cylinder before filling the contents, and after filling the contents, the product is manufactured with a simple filling and packaging machine that only seals the top surface. It was possible to cope with small-scale production.

It is a perspective view which shows one Example of 1st embodiment of the liquid paper container with a handle function of this invention. It is an expanded view which shows the blank of one Example of 1st embodiment of the liquid paper container with a handle function of this invention. It is a perspective view which shows one Example of 2nd embodiment of the liquid paper container with a handle function of this invention. It is the top view, front view, and side view which show one Example of 2nd embodiment of the liquid paper container with a handle function of this invention. It is an expanded view which shows the blank of one Example of 2nd embodiment of the liquid paper container with a handle function of this invention. It is a figure explaining the process in which one Example of 2nd embodiment of the liquid paper container with a handle function of this invention is manufactured. It is a perspective view which shows the example of the conventional liquid paper container.

Explanation of symbols

1A Liquid paper container with handle function (first embodiment)
1B Liquid paper container with handle function (second embodiment)
P Liquid paper container (conventional)
2 Head 3 Top seal (head)
3a Handle hole 4 Body 5 Bottom 6 Spout 10A Blank (first embodiment)
10B blank (second embodiment)
11-14 Side wall panel 15 Adhesive margin 11T Folding panel 12T Inclined panel 13T Folding panel 14T Inclined panel 11R-14R Top rib 16 Outlet hole T Blank head R Blank top rib part D Blank trunk part B Blank bottom part a ~ l Folding line

Claims (3)

A gable-top type consisting of a body part composed of four side wall panels, a rectangular bottom part, and a gable roof-shaped head part, and a top seal part is formed by sealing a top rib on the top part of the head part. A liquid paper container of
A liquid paper container with a handle function, wherein a handle hole is provided in the top seal portion. The liquid paper container with a handle function according to claim 1, wherein the side wall panel is rectangular and the container body has a quadrangular prism shape. 2. The liquid paper container with a handle function according to claim 1, wherein the side wall panel has a trapezoid shape whose upper side is longer than the lower side, and the container body has an inverted quadrangular pyramid shape.

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