JP4077720B2 - Packaging structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
This invention is a combination of a flexible packaging bag with excellent flexibility and a box, and relates to a packaging structure suitable for use in packaging various liquids, viscous materials, etc. When the packaging bag is opened and the packaged material in the packaging bag is poured out multiple times, the packaging material remaining in the packaging bag is oxidized by the outside air, due to fungi or dust that may be contained in the outside air. We propose a technology that can effectively prevent fouling and others.
[0002]
[Prior art]
For example, so-called PET bottles, blow bottles, glass bottles, and the like have been widely used as packaging structures used for, for example, dispensing a liquid package or the like in a plurality of times, and according to these, By opening and closing the cap, the liquid to be packaged can be poured out as required, and unexpected leakage of the liquid to be packaged can be sufficiently prevented.
[0003]
[Problems to be solved by the invention]
However, in these bolts made of a relatively hard material, when the liquid to be packaged is poured out from the bolt, it is inevitable that outside air having a volume corresponding to the amount of liquid to be poured is taken into the bolt. As the liquid to be packaged remaining in the bolts decreases, the proportion of the outside air increases, so the residual liquid is oxidized by the outside air, the fungus that may be contained in the outside air, the contamination of the residual liquid by dust, etc. In addition to the problem of being forced, the glass bottle cannot be used to exhibit high gas barrier properties except for the glass bottle, so that the liquid is likely to be altered by long-term storage of the packaged liquid.
[0004]
Moreover, these bolts have the problem that a large occupied space is required for storage, transportation, etc. in an unused state, and these are also the same for paper cartons such as milk cartons. .
[0005]
The object of the present invention is to solve such problems of bolts and paper cartons. The object of the present invention is to provide liquids to be packaged and the like under excellent gas barrier properties. In addition to being able to be stored for a long time without alteration, etc., when dispensing liquids to be packed, etc., the soft packaging bag itself is crushed and deformed according to the amount of liquid dispensed, making it unnecessary to take in outside air. In addition, after the completion of one time of pouring, the non-returning pouring nozzle is self-reset to a flat shape, and the pouring flow path of the pouring nozzle is hermetically sealed under the intervention of pouring liquid or the like. Therefore, without using screw caps that are indispensable for bolts, contact with outside air such as liquid to be packaged remaining in the packaging bag is sufficiently prevented, and there is a risk of oxidation, fouling, etc. of the residual liquid. Can be effectively removed It is, after used, of course, noted In the unused state, to provide a package structure which can greatly reduce the occupied volume.
[0006]
[Means for Solving the Problems]
The packaging structure according to the present invention has a non-return dispensing nozzle sealed at the tip, for example, like a three-side sealed packaging bag, at the upper end portion of the flexible packaging bag body, for example, on the upper side or side thereof. A packaging bag that is fused by heat sealing or the like in a protruding direction toward the direction, is preferably housed in a box made of paper, more preferably water-resistant paper, and the reverse pouring nozzle is placed on the top of the box Expansion and contraction of the dispensing flow path of the non-return dispensing nozzle by locally fixing or fixing to the bending insertion piece provided continuously on the side of the canopy by sewing, needle fastening, adhesion, adhesion, etc. A part of the non-return dispensing nozzle is positioned corresponding to the opening / closing bending portion of the bending insertion piece, in other words, the bending portion of the bending insertion piece to which the dispensing nozzle is attached. It has been made.
[0007]
In this packaging structure, the irregularity of a soft packaging bag in which liquid or the like is evacuated and packaged can be supplemented by a box housing it, for example, a box having a prismatic shape. Display, transportation, etc. of the packaged product such as liquid can be performed in a space efficient manner in substantially the same manner as the product packaged in a paper carton.
[0008]
By the way, the packaging bag body in this packaging structure can be provided with a required substance to the packaging bag appropriately by constituting it with a laminated film mainly composed of a plastic film. It can be stored for a long period of time without deterioration, before or after opening the package.
On the other hand, this unused packaging structure can be stored and transported in a very compact manner as a flat packaging bag made of plastic film or the like and a paper box in a disassembled posture.
[0009]
And, for dispensing liquid or the like packaged with such a packaging structure, first open the box and at least fix the non-return dispensing nozzle locally, etc. In this state, the tip sealing portion of the check dispensing nozzle is removed by breaking with, for example, a finger, and then the entire packaging structure is placed so that the check dispensing nozzle is located on the lower side of the packaging structure. This can be done by tilting displacement, so that the soft and flat non-return dispensing nozzle can be used in the area where it is not restricted by its mounting part due to the weight of the liquid to be packaged etc. Enlarging to allow outflow of the packaged liquid. In this case, the liquid pouring direction can be specified by the directing direction of the bent insertion piece with the check pouring nozzle fixed or the like.
[0010]
Here, since the liquid to be packaged from the dispensing nozzle is discharged based on the position head of the liquid under the deformation of the soft packaging bag body corresponding to the liquid discharging amount. However, it is not necessary to take in outside air according to the amount of liquid dispensed, such as bottles, and therefore, contact of the residual liquid in the bag with outside air is sufficiently prevented.
[0011]
On the other hand, after the required amount of liquid has been dispensed, the dispensing can be stopped by returning the packaging structure to its original standing posture. Due to the movement in the bag, the dispensing flow path of the dispensing nozzle is in a reduced pressure atmosphere, and the non-return dispensing nozzle itself exhibits a self-restoring force to the original flat shape, Along with the reduction of the pouring channel, the pouring channel is hermetically sealed under the intervention of the pouring liquid, etc., and this packaging state makes the inside of the packaging bag a reduced-pressure atmosphere. Such assistance is also provided by exhibiting the inherent elastic restoring force.
[0012]
Therefore, when the dispensing of the liquid to be packaged is stopped, the outside air is not taken into the packaging bag, and the residual liquid in the bag is sufficiently protected from the outside air even after the dispensing nozzle is opened. This is also true for the subsequent or subsequent dispensing of the packaged liquid and its termination.
[0013]
Moreover, in this packaging structure, a part of the non-return dispensing nozzle is positioned in correspondence with the opening / closing bent portion of the folding insertion piece that is the mounting portion thereof, so that the liquid to be packaged is dispensed. When the mounting part is closed after completion and when the entire box is closed, a bent deformation part is also generated in the non-return dispensing nozzle, so that the entry of outside air into the packaging bag is more advantageous. Will be prevented.
On the other hand, the bent deformation part of the pouring nozzle maintains a sufficiently sealed state of the pouring channel even when the box body is accidentally laid down, so that it is unpredictable for the liquid to be packaged. Leakage can be prevented without a screw cap or the like.
[0014]
By the way, when the box is made of paper, after the liquid to be packaged has been poured out, the packaging structure can be separated into a box and a packaging bag so that the box can be recycled. Therefore, the amount of waste resources can be greatly reduced compared to bolts.
When the box is made of water-resistant paper, it is possible to prevent the box from being deformed due to water leakage or condensation during use of the box.
[0015]
In the packaging structure as described above, the bent insertion piece provided continuously to the side portion of the canopy is provided with a tongue piece projecting in the free end direction of the canopy, and the outer side of the box body is provided on the side wall. In the case where a slit that allows insertion of the tongue piece is provided under the overlapping posture of the bending insertion piece to the box, the bending of the non-return dispensing nozzle after the completion of the dispensing is maintained in the box. This can be done easily from the outside of the body.
[0016]
In addition, the non-return dispensing nozzle can be locally fixed or fixed to the side wall portion of the upper portion of the box that can be opened and closed, in this case as well. By disposing a part of the dispensing nozzle in correspondence with the opening / closing bent part of the side wall part, the liquid to be packaged can be dispensed and stopped in the same manner as described above.
In this case, the side wall portion to which the dispensing nozzle is attached can be oscillated in a vertical plane, but preferably the side wall portion is oscillated in a horizontal plane and a tongue piece is provided at the tip of the side wall portion. And a slit on the side wall to allow insertion of the tongue. According to this, the non-return dispensing nozzle can be easily bent and held before and after use from either the inside or outside of the box.
[0017]
Here, it is preferable that the soft packaging bag body is composed of a laminated film mainly composed of a plastic film in order to give various barrier properties and other required physical properties thereto, and a check dispensing nozzle is provided. A single layer or laminated plastic film having a thickness of 10 to 100 μm is preferable in terms of enhancing the responsiveness of opening and closing of the pouring channel and enhancing the sealing property of the channel.
In addition, when the non-return pouring nozzle is composed of a laminated plastic film, required physical properties can also be imparted to the pouring nozzle.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 shows a packaging bag as a constituent member of a packaging structure according to the present invention and a box in an unfolded state.
Here, the packaging bag 1 includes a well-known general seal type, for example, a packaging bag body 2 having a substantially three-way seal shape as shown by hatching in the figure, and a side or upper side of the packaging bag body 2. Then, it consists of a non-return dispensing nozzle 3 fused in a laterally projecting posture.
[0019]
The soft packaging bag body 2 here can be composed of a single-layer plastic film, or can be composed of various known laminated films mainly composed of a plastic film. In the latter case, for example, Laminate film such as nylon film and polyethylene film, nylon film and polypropylene film or polyethylene terephthalate film and polyethylene film, etc. can be used, and laminated structure of films vapor-deposited aluminum or silica, laminated aluminum foil or paper, etc. A film having a laminated structure can also be used.
[0020]
A flat check dispensing nozzle 3 with a sealed tip, which is fused to the packaging bag body 2 by heat sealing or other sealing methods, is also hatched in the figure to ensure its flat shape. The non-return dispensing nozzle 3 is preferably 10 in which the outer surface of the open-side end portion is fused to the inner surface of the packaging bag body 2 by heat sealing or the like. It is composed of a single layer or laminated film having a thickness of ˜100 μm.
[0021]
As the monolayer film in this case, for example, a polyethylene film, polypropylene film, etc. can be used, and as the laminated film, for example, a film composed of polyethylene layer / nylon layer / polyethylene layer, polyethylene layer / ethylene vinyl alcohol A copolymer (hereinafter referred to as “EVOH layer”) / polyethylene layer or the like can be used. Among these laminated films, those using a nylon layer can greatly improve the oil resistance and water resistance of the pouring nozzle 3, and those using an EVOH layer can greatly improve the oxygen barrier property.
[0022]
In such a packaging bag 1, it is preferable that one notch is provided in the vicinity of the tip sealing portion of the non-return dispensing nozzle 3 to facilitate tearing and unsealing by the dispensing nozzle 3, and by extension, the fingers of the packaging bag 1. The tear guide rod 4 is formed of a V-notch or a groove or the like in which the film thickness is reduced in a streak shape over the entire width of the pouring nozzle 3.
[0023]
And the box 5 which accommodates what is packed and packaged in the packaging bag 1 as described above, preferably in an evacuated state, and where the bottom is sealed as shown in the figure, preferably The box 5 made of paper, more preferably water-resistant paper, makes the flexible packaging bag 1 in an undefined form filled and packaged with a liquid to be packaged, etc., and makes it possible to secure a specific standing posture thereof. The various dimensions including the thickness of the box 5 can be determined in relation to the volume of the liquid to be packaged.
Incidentally, as a box body thickness for packaging 1 liter about liquid can be 280g ^{/ m 2} ~500g ^/ m 2 using a 80% recycled paper.
[0024]
The box 5 shown in the figure has a columnar hexahedron shape including the side wall 6, the canopy 7 and the bottom cover 8, and the box 5 is like a conventional paper carton such as a liquid to be packaged as a product. Since it is possible to arrange without waste, it is possible to sufficiently increase the space efficiency when displaying, transporting, storing, and the like.
[0025]
The box 5 shown in this figure is also provided continuously on the side bent portion 9 formed on the upper end of the side wall 6 adjacent to one side of the side wall 6 provided with the canopy 7 and the side of the canopy 7. The side wall 6 is provided with a bent insertion piece 10 projecting horizontally to the other side wall 6 side, and at the lower end of each side wall 6 adjacent to the side wall 6 provided with the bottom cover 8. A side bent piece 11 and a joining margin 12 provided continuously to one side wall 6 and extending over the entire length thereof for joining the side walls.
[0026]
The packaging bag 1 filled with an article to be packed in the box 5 assembled by joining the joining margin 12 to the side wall 6 is stored in a relative posture as shown by an imaginary line on the box in the deployed posture in FIG. In this case, the positioning of the soft packaging bag 1 having no fixed shape with respect to the box 5 is held at the upper end of the packaging body 2 as shown by hatching in the figure, for example. This can be performed by locally fixing or fixing the portion to the canopy 7 and the upper end portion of the check pouring nozzle 3 to the bending insertion piece 10 by sewing, bonding or the like.
[0027]
According to this, for example, the slack deformation of the entire packaging bag filled with the liquid to be packaged onto the bottom lid 8 can be effectively restrained, and the canopy 7 is opened as shown in FIG. By setting it in a state, it is possible to remove slack sufficiently from the packaging bag 1 and to easily and reliably dispense the liquid to be packaged.
[0028]
By the way, this pouring of the liquid to be packaged is performed by removing the bent insertion piece 10 from the box 5 as shown in FIG. For example, the tip sealing portion of the non-return dispensing nozzle 3 that has been fixed is removed by, for example, opening the packaging bag 1 from the position of the tear guide bag 4, and the dispensing nozzle 3 together with the bent insertion piece 10. The open position shown by the phantom line in the figure can be taken, and then the box 5 can be tilted so that the tip opening of the dispensing nozzle 3 faces downward as shown in FIG. 3B.
[0029]
When such a liquid to be packaged is poured out, the non-returning nozzle 3 can expand the pouring channel sufficiently large on the basis of its local fixing to the bent insertion piece 10, etc. Since the soft packaging bag 1 is crushed and deformed according to the amount of liquid dispensed, the outside air does not flow into the packaging bag 1. The contact between the outside air and the liquid in the bag is surely prevented.
[0030]
On the other hand, the liquid pouring can be stopped by returning the box 5 to the standing posture shown in FIG. 3 (a). In this case, the check pouring nozzle 3 is operated by the pouring channel. The remaining liquid in the packaging bag 1 moves in the bag from the top side to the bottom side of the packaging bag 1 so that the dispensing channel of the dispensing nozzle 3 has a reduced pressure atmosphere. And the like, the film before and after the pouring nozzle 3 is brought into close contact with the pouring liquid, thereby providing a hermetic sealing of the pouring channel. In this sealed state, the packaging bag 1 is decompressed in the bag. Combined with exhibiting an elastic restoring force inherent to the atmosphere, such as an atmosphere, the subsequent tilt displacement of the box 5 is reliably maintained.
[0031]
Therefore, the intrusion of outside air into the packaging bag 1 at the time of stopping the dispensing of the liquid to be packaged and thereafter is sufficiently prevented under the sealing of the dispensing channel. And this means that the non-return dispensing nozzle 3 is composed of a highly flexible film of 10 to 100 μm, particularly 10 to 60 μm, and the adhesion of the front and back films is enhanced, and the dispensing nozzle The protrusion length from the packaging bag body of 3 is 30 to 60 mm, particularly 40 to 50 mm, which is particularly advantageous in each of the cases where the adhesion of the front and back films is increased.
[0032]
Further, in this packaging structure, when closing the canopy 7 after stopping the pouring, the bending insertion piece 10 is bent and deformed to the closing position shown by the solid line in FIG. Also, the film is bent and deformed to a position of approximately 90 degrees with respect to the packaging bag main body 1, whereby the front and back films of the pouring nozzle 3 are securely adhered at the bent portions. Therefore, when the bent insertion piece 10 is inserted into the inside of the box side wall 6 from the free end side of the canopy 7 when the canopy 7 is closed, the close contact state between the front and back films of the pouring nozzle 3 is sufficient. Even if the box 5 is accidentally laid down, the unexpected leakage of the liquid to be packaged in the bag is surely prevented by the close contact.
[0033]
The subsequent re-pouring and stopping of the liquid to be packaged can be performed in the same manner as described above except that the tip sealing portion of the non-return pouring nozzle 3 is cut off.
[0034]
FIG. 4 is a perspective view of a main part showing another embodiment, which protrudes from the upper end of the bending insertion piece 10 that locally fixes the non-return dispensing nozzle 3 toward the free end of the canopy 7. For example, a quarter-shaped tongue piece 13 is provided, and a slit 14 is provided on one side wall 6 of the upper part of the box so as to allow insertion of the tongue piece 13 in a bent posture of approximately 90 degrees toward the front side in the figure. Is.
[0035]
In the figure, reference numeral 15 denotes a side small bent piece provided on the side wall of the bent insertion piece 10 provided continuously to the canopy 7 and located on the side away from the canopy 7. When the tongue piece 13 and the slit 14 of the box 5 after opening are functioning, the side small folded piece 15 exhibits its original upper end closing function.
[0036]
That is, in the unopened state of the box body 5, the tongue piece 13 bent about 90 degrees toward the front side of the drawing with respect to the bent insertion piece 10 is stored inside the box body 5 together with the insertion piece 10. Therefore, the side small folded piece 15 is bent at approximately 180 degrees so that the tip thereof faces the bottom lid 8 of the box 5, while the box 5 is opened after being opened. As shown in FIG. 5, the piece 10 is bent to the outside of the side wall 6 together with the pouring nozzle 3 fixed thereto, and the tongue piece 13 is moved from the outside of the side wall 6 into the slit 14. In this case, the side small bent piece 15 functions to prevent entry of dust or the like into the box 5.
[0037]
By the way, in order to pour liquid to be packaged in this packaging structure, the box 5 is placed in an open posture as shown in FIG. It can be performed by tilting as shown in 3 (b), and the liquid dispensing direction in this case can be changed as appropriate by adjusting the direction of the bending insertion piece 10.
[0038]
On the other hand, the pouring is stopped in the same manner as before by returning the box 5 to the standing posture, and not only during the liquid pouring but also at the time of the pouring stop and thereafter Intrusion of outside air into the packaging bag is sufficiently prevented.
[0039]
And the pouring flow path of the pouring nozzle 3 is made by making the bending insertion piece 10 into a closed posture of bending it about 90 degrees toward the front side of the canopy 7 as shown by an arrow A in FIG. It will be surely sealed.
After finishing the one-time pouring in this way, as shown in FIG. 5, the tongue piece 13 provided on the bending insertion piece 10 is inserted into the slit 14 to complete a series of operations.
[0040]
FIG. 6 shows still another embodiment, which is an open / close portion that can swing and displace in a horizontal plane on the upper side of the box 5, on one side wall 6, on the side wall 6 facing the side wall provided with the canopy 7 in the figure. 6, and a tongue piece 17 projecting from the opening / closing portion 16 is provided continuously at the tip of the opening / closing portion 16, and a slit 18 that allows the tongue piece 17 to be inserted into the side wall 6 on which the opening / closing portion 16 is formed. The check dispensing nozzle 3 of the packaging bag 1 is locally fixed to the opening / closing part 16.
Here, the tongue piece 17 can be inserted into the slit 18 from the outside of the box 5, and can also be inserted into the slit 18 from the inside of the box 5.
[0041]
In this case, the liquid to be packaged is poured by cutting off the tip sealing portion of the pouring nozzle 3 with the opening / closing portion 16 of the box 5 in the open posture as shown in the figure, and then the entire box 5 is removed. This can be done by tilting as shown in FIG. On the other hand, the pouring can be stopped by returning the box 5 to the standing posture shown in FIG. 6, and in this case, the opening / closing portion 16 is in a closing posture along the side wall 6 provided with the box 5. Further, by inserting the tongue 17 into the slit 18, a more reliable sealing of the dispensing flow path of the check dispensing nozzle 3 can be realized.
[0042]
【The invention's effect】
As is apparent from the above description, according to the present invention, under various barrier properties of the packaging bag based on the selection of the material of the packaging bag, the liquid to be packaged etc. before and after opening the packaging bag, etc. In addition, the liquid to be packaged can be effectively protected by the light shielding property of the box preferably made of paper.
[0043]
In addition, here, when the liquid to be packaged is poured out, at the time when the dispensing is stopped, and after that, it is still possible to prevent the outside air from entering the packaging bag. It is possible to effectively prevent contamination by fungi, dust, etc. that may be contained.
[0044]
Furthermore, since the box and the package can be stored compactly before and after the use of the packaging structure, the occupied volume can be greatly reduced compared to conventional bottles.
By the way, when the box is made of paper, it is possible to use only the packaging bag as a waste resource by subjecting the box to recycling after use of the packaging structure.
[Brief description of the drawings]
FIG. 1 is an exploded view showing an embodiment of the present invention in a developed state of a box.
FIG. 2 is a development view relatively showing the state of storage in a packaging bag in an assembled box.
FIG. 3 is a diagram showing a dispensing process of a packaged liquid.
FIG. 4 is a perspective view of a main part showing another embodiment.
FIG. 5 is a diagram showing a storing process of a bending insertion piece.
FIG. 6 is a perspective view of a main part showing still another embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Packing bag 2 Packing bag main body 3 Non-return pouring nozzle 4 Tear guide rod 5 Box 6 Side wall 7 Canopy 8 Bottom lid 9, 11 Side bending piece 10 Folding insertion piece 12 Joining allowances 13, 17 Tongue piece 14, 18 Slit 15 Side small folded piece 16 Opening and closing part

Claims (7)

A non-return dispensing nozzle that accommodates a packaging bag formed by fusing a flat non-return dispensing nozzle sealed at the tip to the upper end of a soft packaging bag body in a projecting position therefrom. Is fixed locally or fixed to a bent insertion piece provided continuously on the side of the canopy, and a part of the check-out nozzle is positioned so as to correspond to the open / close bending portion of the bent insertion piece. A packaging structure. A tongue piece projecting in the direction of the free end of the canopy is provided on the bending insertion piece, and the tongue piece is placed on the side wall of the upper portion of the box body in an overlapping posture of the bending insertion piece to the outer surface side thereof. The packaging structure according to claim 1, further comprising a slit that allows insertion of the packaging structure. A non-return dispensing nozzle that accommodates a packaging bag formed by fusing a flat non-return dispensing nozzle sealed at the tip to the upper end of a soft packaging bag body in a projecting position therefrom. Is locally fixed or fixed to the side wall portion of the upper part of the box that can be opened and closed, and a part of the check-out nozzle is positioned corresponding to the opening and closing bent portion of the side wall portion. A packaging structure. The packaging structure according to claim 3, wherein the side wall portion is swingable in a horizontal plane, a tongue piece is provided at a tip of the side wall portion, and a slit that allows insertion of the tongue piece is provided on the side wall. The packaging bag body is made of a laminated film mainly composed of a plastic film, and the check pouring nozzle is made of a single layer or a laminated plastic film having a thickness of 10 to 100 µm. A packaging structure according to 1. The packaging structure according to any one of claims 1 to 5, wherein the box is made of paper. The packaging structure according to any one of claims 1 to 6, wherein the box is made of water-resistant paper.

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