JP2003112726A - Packaging container and its manufacturing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a soft touch of a mouth to be attained against a pouring outlet part. SOLUTION: There is provided a thick-walled part 72 not having a lid enclosing a pouring outlet. It has a drink tab 71 adhered to a top wall 37 and a pull-tab 75 adhered to cover the pouring outlet from a front surface side of a packaging material constituting the top wall 37. In this case, it is possible to make a soft touch of a mouth against the pouring outlet because the pouring outlet is enclosed by the thick-walled part 72. In addition, liquid food can be easily drunk. Further, it is possible to simplify a manufacturing step for a packaging container 29 because the thick-walled part 72 is integrally formed with the drink tab 71.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a packaging container and a method for manufacturing the same.

[0002]

Conventionally, liquid foods such as milk and soft drinks are
Generally, they are sold by being housed in a packaging container such as a brick type or a polyhedral type made of a packaging material. Then, in a packaging container having a capacity capable of being completely consumed at one time, a spout is formed on the top wall and the spout is covered with a pull tab.

FIG. 2 is a perspective view of a conventional packaging container.

In the drawing, 10 is a packaging container body for containing liquid food, 12 is a top wall of the packaging container body 10, 19 is a rear wall of the packaging container body 10, and 20 is a side wall of the packaging container body 10. A spout 21 formed of a punch hole is formed at a spout portion set at a predetermined position on the top wall 12, and the spout 21 is covered with a pull tab 15.
In this case, a person who wants to drink the liquid food, that is, a drinker, can pull the pull tab 15 from the packaging container body 10.
Is peeled off, the straw 18 is taken out from the bag 16 of the straw 18 attached to the rear wall 19, and the straw 18 is inserted into the spout 21 to drink liquid food. be able to. It is also possible to put the lips against the opened spout 21 and directly drink the liquid food.

The pull tab 15 has an area larger than that of the spout 21, and when the pull tab 15 is attached to the packaging material 11, the top wall 12 is formed.
A horizontal portion 23 extending along the side wall 20 to protect the spout 21 from contamination and a vertical portion 24 extending along the side wall 20 to serve as a tab when the pull tab 15 is peeled off.

[0006]

However, in the conventional packaging container described above, when the lip is put on the opened spout 21 and the liquid food is directly drunk, the mouth around the spout 21 is not good.

An object of the present invention is to solve the problems of the conventional packaging container and the manufacturing method thereof, and to provide a packaging container and a manufacturing method thereof capable of improving the mouth feel of the spout.

[0008]

Therefore, in the packaging container of the present invention, there is provided a drink tub which is provided on a top wall and has a thick portion without a lid which surrounds a spout, and the top. And a pull tab attached to cover the spout portion from the front side of the packaging material forming the wall.

Another packaging container of the present invention further has an inner tape attached from the back side of the packaging material.

In still another packaging container of the present invention, the drink tab further includes an outer patch seal, and a thick portion formed on the outer patch seal by injection molding.

In still another packaging container of the present invention, the outer patch seal further comprises a main body portion attached to the top wall and a skirt portion attached to the front wall.

In still another packaging container of the present invention, the drink tab further includes a thick portion formed by thermally deforming the film.

In the method of manufacturing the packaging container of the present invention,
A drink tab is attached to the packaging material, a spout is formed on at least the drink tab of the packaging material and the drink tab, and a pull tab is attached to cover the spout from the front side of the packaging material.

In another method of manufacturing a packaging container of the present invention, an inner tape is further attached from the back side of the packaging material.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a diagram showing an initial state of the packaging container according to the first embodiment of the present invention, and FIG. 3 is a diagram showing an opened state of the packaging container according to the first embodiment of the present invention.

In the drawing, 29 is a packaging container and 30 is a packaging container body. The packaging container body 30 has a body portion 31 having a substantially octagonal cross section, and extends upward from the body portion 31. The lower end has a substantially octagonal shape, the upper end has a substantially square shape, and the upper end 32 extends downward from the body portion 31, and the upper end has a substantially octagonal shape.
The lower end has a lower end (not shown) having a substantially rectangular shape. The body 31 includes a front wall 34, a rear wall (not shown), two side walls 35 (only one side wall 35 is shown in the drawing), and between the front wall 34 and each side wall 35. And the four body connecting walls 36 (only one of the body connecting walls 36 is shown in the figure) disposed between the rear wall and each side wall 35. Each of the front wall 34, the rear wall, the side wall 35, and the body connecting wall 36 has a rectangular shape.

The upper end portion 32 includes a top wall 37, a front wall 38 connecting the top wall 37 and the front wall 34, a rear wall (not shown) connecting the top wall 37 and the rear wall, Two side walls 39 connecting the top wall 37 and each side wall 35 (only one side wall 39 is shown in the drawing), and four connections connecting the top wall 37 and each body connecting wall 36. Wall 40 (in the figure, one of the connecting walls 40
Show only. ) Consists of. Each of the front wall 38, the rear wall, and the side wall 39 has a trapezoidal shape with an upper bottom placed on the bottom, and the connecting wall 40 has a triangular shape with one apex on the top wall 37. . Incidentally, 46 is a seal portion formed in the center of the top wall 37, and 47 is an ear portion.
Is fused to the side wall 39.

The lower end portion connects a bottom wall, a front wall connecting the bottom wall and the front wall 34, a rear wall connecting the bottom wall and the rear wall, and a bottom wall and each side wall 35. It is composed of two side walls and four connecting walls connecting the bottom wall and each body connecting wall 36.

The packaging container body 30 is formed by molding a packaging material. Therefore, a fold line is previously formed in the packaging material, and the prototype container is formed by bending the packaging material along the fold line. Then, the prototype container is subjected to a predetermined molding process to form the packaging container main body 30 in the final shape. The packaging material is composed of a flexible laminate, a paper base material (not shown), an outermost layer (not shown) made of polyethylene resin or the like coated on the surface of the paper base material, the back surface of the paper base material. And a barrier layer (not shown) having a gas barrier property and a back surface of the barrier layer, and an innermost layer (not shown) made of polyethylene resin or the like.

By the way, the drink tab 71 is adhered or fused at a predetermined position on the top wall 37, for example, substantially in the center of a position near the boundary line L1 between the top wall 37 and the front wall 38. Affixed by The drink tab 71
Is a “U” -shaped thick portion 72 and outer patch seal 7
6 and the thick portion 72 has an outer patch seal 7
6 is formed integrally by adhering resin onto 6 by injection molding, and has no lid. And the top wall 37
Further, a spout 51 formed of a punch hole is formed at a spout portion set at a predetermined position of the outer patch seal 76.

In this case, since the outer patch seal 76 is arranged around the thick portion 72, the mouth contact around the thick portion 72 can be improved.

A pull tab 75 is attached from the front side of the packaging material so as to cover the spout portion, the inside of the thick portion 72, and the vicinity of the boundary line L1. The pull tab 75 is made of aluminum foil and has a barrier layer having gas barrier properties, an outermost layer made of polyethylene resin or the like coated on the surface of the barrier layer, and a polyethylene resin coated on the back surface of the barrier layer. And the like. And
The pull tab 75 has an area larger than the spout 51 and extends along the top wall 37 when attached to the packaging material.
It consists of a horizontal portion 75a that covers the periphery of the spout 51 to prevent contamination, and a vertical portion 75b that extends along the front wall 38 and serves as a knob when the pull tab 75 is peeled off. Further, an inner tape (not shown) is attached from the back side of the packaging material on the top wall 37, and the pull tab 75 and the spout 51
Sealed with the surrounding area.

Therefore, as shown in FIG. 3, by pulling the pull tab 75 from the packaging container body 30, the inner tape is broken, the spout 51 is opened, and the packaging container 29 can be opened. Then, the lip can be put on the opened spout 51 to directly drink the liquid food. In this case, since the thick outlet 72 surrounds the spout, the spout of the spout can be improved. Moreover, it is easy to drink liquid food.

By tilting the packaging container 29, it is possible to pour the liquid food from the spout 51 into a container such as a glass (not shown).

In the present embodiment, the thick portion 72
Is formed in a "U" shape along the front edge and the side edge of the spout 51, but may be formed in a closed loop along the inner peripheral edge of the spout 51. Further, in the present embodiment, the spout 51 is formed by a punch hole in the spout portion and is opened by peeling off the pull tab 75, but the outer patch seal 76 is provided.
Hole is formed in advance, and the top wall 37
In the above, the spout may be formed by a breaking portion including perforations, pre-lamination, and half-cut portions, and the breaking portion may be broken to open the spout when the pull tab 75 is pulled up. In that case, the inner tape becomes unnecessary.

As described above, since the thick portion 72 is integrally formed on the outer patch seal 76, the manufacturing process of the packaging container 29 can be simplified. Moreover, since the outer patch seal 76 can be made extremely thin,
The packaging material can be easily folded after the drink tab 71 is attached to the packaging material.

Next, a modified example of the pull tab 75 will be described. In addition, about the thing which has the same structure as FIG. 1, the description is abbreviate | omitted by giving the same code | symbol.

FIG. 4 is a diagram showing a modification of the pull tab according to the first embodiment of the present invention.

In this case, the pull tab 75 has an area larger than that of the spout 51, and when attached to the packaging material, the top wall 3 is formed.
7 and a horizontal portion 75a that covers the periphery of the spout 51 to prevent contamination, and when the pull tab 75 is peeled off when the horizontal portion 75a is raised at the rear edge of the horizontal portion 75a, that is, in the vicinity of the seal portion 46. It is composed of a vertical portion 75c which serves as a knob. Therefore, when opening the packaging container 29, the vertical portion 75c is pulled toward the front side.

Next, a method of manufacturing the packaging container 29 will be described.

FIG. 5 is a view showing a method of manufacturing a packaging container according to the first embodiment of the present invention, and FIG. 6 is a perspective view of a drink tab tape according to the first embodiment of the present invention.
In FIG. 6, P1 to P4 represent first to fourth steps in the method of manufacturing the packaging container 29 (FIG. 1).

In the figure, 71 is a drink tab, 72 is a thick portion, 76 is an outer patch seal, 81 is a packaging material, 82
Is a drink tab tape, and the drink tab tape 8
2, a plurality of drink tabs 71 are integrally and continuously formed.

In the first step P1, the outer seal device 83 uses the drink tab tape 82 to the drink tab 7
1 is separated by a cutter (not shown), and each drink tab 71 is attached from the front side of the packaging material 81 by sealing means such as resistance heating, induction heating, and ultrasonic waves. Next, in the second step P2, the punching device 84 simultaneously forms a hole (not shown), which will later become the spout 51, in the spout portion of the packaging material 81 and the outer patch seal 76 set at predetermined positions. Then, in the third step P3, the inner sealing device 85 attaches the inner tape 86 from the back side of the packaging material 81 by the sealing means. Then, the fourth step P
In 4, the pull tab seal device 87 attaches the pull tab 75 from the front side of the drink tab 71 and the packaging material 81 by the sealing means.

Next, a method of manufacturing the drink tab tape 82 will be described.

FIG. 7 is a schematic view of a drink tab tape manufacturing apparatus according to the first embodiment of the present invention.

In the figure, 72 is a thick portion, 76 is an outer patch seal, 82 is a drink tab tape, 91 is a reel of the outer patch seal 76, 92 is an injection molding machine,
Reference numeral 93 is a storage box for storing the drink tab tape 82. In this case, the outer patch seal 76 unrolled from the reel 91 is conveyed by the conveying rollers R1 to R3, during which the molding is performed by the injection molding machine 92, and the resin is adhered to form the thick portion 72. It

Next, a second embodiment of the present invention will be described.

FIG. 8 is a perspective view of a drink tub manufacturing apparatus according to the second embodiment of the present invention, and FIG. 9 is a perspective view showing a method of manufacturing a packaging container according to the second embodiment of the present invention. In addition, in FIG. 9, P11-P14 represent the 1st-4th process in the manufacturing method of a packaging container.

In the figure, 94 is a film, 95 is a reel of the film 94, 97 is a heating block, and 98 is a drink tab formed by sandwiching and heating the film 94 by the heating block 97 to heat-deform it. is there. The drink tab 98 is composed of a “U” -shaped thick portion 99 having no lid and a flat plate portion 101. A mold having a shape corresponding to the thick portion 99 is formed on the heating block 97.

In the first step P11, a first punching device (not shown) forms a hole 102, which will later become the spout 51, in the spout portion set at a predetermined position of the packaging material 81. Next, in a second step P12, an outer seal device (not shown) attaches the drink tab 98 from the front side of the packaging material 81 to the hole 102 by the sealing means. Subsequently, in a third step P13, a punching device (not shown) forms a hole 103 in the plate-shaped portion 101. At this time, the spout 51 is formed by the holes 102 and 103. Then, in a fourth step, an inner sealing device (not shown) attaches the inner tape 86 from the back side of the packaging material 81 by the sealing means.

Next, a third embodiment of the present invention will be described. In addition, about the thing which has the same structure as 1st Embodiment, the description is abbreviate | omitted by giving the same code | symbol.

FIG. 10 is a view showing an opened state of the packaging container according to the third embodiment of the present invention, and FIG. 11 is a third view of the present invention.
FIG. 6 is a perspective view showing the method of manufacturing the packaging container in the embodiment. In addition, in FIG. 11, P21 to P23 represent first to third steps in the method of manufacturing the packaging container 29.

In this case, the drink tab 71 is composed of a thick portion 72 without a lid and an outer patch seal 115,
The outer patch seal 115 is formed integrally with the main body portion 116 attached to the top wall 37, and the main body portion 116,
It consists of a skirt 117 that is attached to the front wall 38.

In the first step P21, an outer seal device (not shown) attaches the drink tab 71 from the front side of the packaging material 81 by the sealing means. Then, the second
In step P22, a punching device (not shown) simultaneously forms the spout 51 at the spout 81 set at a predetermined position on the packaging material 81 and the main body 116. Then, in a third step P23, the inner sealing device (not shown) attaches an inner tape (not shown) from the back side of the packaging material 81 by the sealing means, and the pull tab sealing device (not shown) operates the main body portion 116 by the sealing means. The pull tab 118 is attached from the front side of the packaging material 81 so as to cover a part of the thick portion 72 and a part of the skirt 117.

Next, a fourth embodiment of the present invention will be described. In addition, about the thing which has the same structure as 1st Embodiment, the description is abbreviate | omitted by giving the same code | symbol.

FIG. 12 is a first diagram showing the disposition state of the outer patch seal in the fourth embodiment of the present invention, FIG.
FIG. 3 is a second diagram showing the arrangement of outer patch seals in the fourth embodiment of the invention, and FIG. 14 is a fourth diagram of the invention.
FIG. 7 is a third diagram showing the arrangement state of the outer patch seal in the embodiment.

In the packaging container 29 shown in FIG. 12,
The top wall 37 is lowered as it is closer to the boundary line L2 between the top wall 37 and the front wall 38 and is closer to the center in the width direction,
An outer patch seal 151 is attached near the spout 51.

In the packaging container 29 shown in FIG. 13, the skirt portion 153 of the outer patch seal 152 has a triangular shape, and in the packaging container 29 shown in FIG. 14, the skirt portion 156 of the outer patch seal 155 has an arc shape. Have a shape.

Next, a fifth embodiment of the present invention will be described.

FIG. 15 is a perspective view of a packaging container according to the fifth embodiment of the present invention.

In the figure, 10 is a packaging container body for containing liquid food, 11 is a packaging material, 12 is a top wall of the packaging container body 10, 16 is a bag for containing a straw 18, and 19 is the packaging container body 10. A rear wall, 20 is a side wall of the packaging container body 10, a spout 21 formed of a punch hole is formed at a spout of the top wall 12 set at a predetermined position, and the spout 21 is a horizontal portion. It is covered by a pull tab 15 consisting of 23 and a vertical portion 24. Also, the top wall 1
0 is a "U" that surrounds the spout 21 and has no lid.
A letter-shaped drink tab 161 is attached.

The present invention is not limited to the above-mentioned embodiments, but can be variously modified within the scope of the present invention, and they are not excluded from the scope of the present invention.

[0054]

As described above in detail, according to the present invention, the packaging container has a thick portion without a lid, which surrounds the spout, and is a drink tab attached to the top wall. And a pull tab adhered from the front side of the packaging material forming the top wall so as to cover the spout portion.

In this case, since the spout is surrounded by the thick portion, the spout of the spout can be improved. Moreover, it is easy to drink liquid food.

Further, since the thick portion is formed integrally with the drink tab, the manufacturing process of the packaging container can be simplified.

[Brief description of drawings]

FIG. 1 is a diagram showing an initial state of a packaging container according to a first embodiment of the present invention.

FIG. 2 is a perspective view of a conventional packaging container.

FIG. 3 is a diagram showing an opened state of the packaging container according to the first embodiment of the present invention.

FIG. 4 is a diagram showing a modified example of the pull tab according to the first embodiment of the present invention.

FIG. 5 is a diagram showing a method of manufacturing the packaging container according to the first embodiment of the present invention.

FIG. 6 is a perspective view of the drink tab tape according to the first embodiment of the present invention.

FIG. 7 is a schematic view of a drink tab tape manufacturing apparatus according to the first embodiment of the present invention.

FIG. 8 is a perspective view of a drink tab manufacturing apparatus according to a second embodiment of the present invention.

FIG. 9 is a perspective view showing a method of manufacturing a packaging container according to the second embodiment of the present invention.

FIG. 10 is a diagram showing an opened state of a packaging container according to a third embodiment of the present invention.

FIG. 11 is a perspective view showing a method of manufacturing a packaging container according to the third embodiment of the present invention.

FIG. 12 is a first diagram showing an arrangement state of outer patch seals according to a fourth embodiment of the present invention.

FIG. 13 is a second diagram showing an arrangement state of the outer patch seal in the fourth embodiment of the present invention.

FIG. 14 is a third view showing the arrangement of outer patch seals in the fourth embodiment of the invention.

FIG. 15 is a perspective view of a packaging container according to a fifth embodiment of the present invention.

[Explanation of symbols]

12, 37 Top wall 15, 75, 118 pull tab 29 packaging containers 38 front wall 71, 98, 161 Drink tab 72, 99 thick part 76, 151, 152, 155 Outer patch seal 81 Packaging material 86 Inner tape 94 film 116 main body 117, 153, 156 skirt portion.

Claims (7)

[Claims] 1. (a) A drink tub which is provided on a top wall and has a thick portion without a lid, which surrounds the spout,
(B) A packaging container having a pull tab attached from the front side of the packaging material forming the top wall so as to cover the spout. 2. The packaging container according to claim 1, further comprising an inner tape attached from the back side of the packaging material. 3. The packaging container according to claim 1, wherein the drink tab includes an outer patch seal and a thick portion formed on the outer patch seal by injection molding. 4. The packaging container according to claim 3, wherein the outer patch seal includes a main body portion attached to the top wall and a skirt portion attached to the front wall. 5. The drink tab includes a thick portion formed by thermally deforming a film.
The packaging container described in. 6. (a) A drink tab is attached to the packaging material,
(B) A spout is formed on at least a drink tab of the packaging material and the drink tab, and (c) a pull tab is attached to cover the spout from the front side of the packaging material. Container manufacturing method. 7. The method of manufacturing a packaging container according to claim 6, wherein an inner tape is attached from the back side of the packaging material.