JP2002120867A - Tamper-proof wrapper packaging, and its folding method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tamper-proof wrapper packaging capable of reliably leaving behind any trace of tamper-unsealing, and a folding method capable of folding the wrapper packaging without considerably changing a packaging machine. SOLUTION: This tamper-proof packaging comprises a surrounding part 8 for surrounding the periphery of a box body 2 by folding a film packaging material 4, a body flap folding surface 10 for closing an end face of the box body 2, and a side folding surface 12 for closing both side surfaces of the box body 2. The side folding surface 12 comprises a pair of corner-folding parts 18, a single side flap folding part 20, and an ultrasonic seal line 22 for joining a tip edge of the side flap folding part 20 and the corner-folding parts 18 with the surrounding part 8.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an anti-mischief wrapping package capable of reliably leaving traces of opening by mischief and a method of folding the same.

[0002]

2. Description of the Related Art Various types of this kind of wrapping package with anti-tamper have been already known.
JP-A-110563 discloses an overwrapping package, JP-A-61-107721 discloses a tamper-proof container, and JP-A-3-33764 discloses a banknote bundle. Japanese Utility Model Publication No. 61-110563 discloses an overwrapping package in which the fold seal area is printed, and once the fold seal area is opened, it is impossible to completely restore the fold seal area. It is intended to prevent opening.

The tamper-proof container disclosed in Japanese Utility Model Laid-Open Publication No. Sho 61-107721 completely adheres the film wrapping material and the contents by applying an adhesive to the outer peripheral surface of the contents wrapped from the film wrapping material. In this way, opening by mischief is prevented. Furthermore, the package of the banknote bundle of JP-A-3-33764 is a shrink package using a heat-shrinkable film packaging material, and such a shrink package cannot be opened unless the film packaging material is broken. Because of this, it is excellent in terms of countermeasures against mischief.

[0004]

As a countermeasure against the various mischiefs described above, printing on a film packaging material and bonding between the film packaging material and the contents require a separate process from the original folding molding of the film packaging material. This leads to a drastic change in the packaging machine and a reduction in the packaging efficiency. On the other hand, shrink wrapping is not only poor in opening property, but also has a disadvantage that dust easily adheres to the wrapping body because the film wrapping material is easily charged.

[0005] In addition to the above-mentioned wrapping form, there is a fin-sealing package as disclosed in Japanese Patent Application Laid-Open No. 5-85552, for example. However, since the fin seal is exposed to the outside, the appearance is poor, and the fin seal is not suitable for overwrapping and packaging a favorite product such as a cigarette pack. The present invention has been made based on the above-described circumstances, and the object thereof is to avoid a significant change in the packaging process, and to surely leave a trace of opening by mischief and prevent the misappropriating overwrapping package. And a method for molding the same.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention relates to a box-shaped film wrapping material which is obtained by folding a box body around a box, and encloses a box around the box in a U-shape. Along with folding, a pair of body flaps projecting from the open end face of the box body are sequentially folded toward the end face and a body flap folding surface joined together and a body fold and a body flap folding surface are formed. And a side fold surface obtained by sequentially folding ears protruding from both sides of the box toward the corresponding side surface of the box body. The body has its features on the side folding surface.

That is, the side folded surface of the first aspect is
A pair of fold portions formed by folding a part of the ear from both end edges of the side surface, and one side flap left on the ear due to the formation of the fold portion is connected to one side edge of the side surface. And a single side flap folded portion overlapped with the edge folded portion and having a leading edge coinciding with the other side edge of the side surface, and a surrounding portion extending along the other side edge of the side surface. And an ultrasonic seal line that joins the leading edge of the folded edge portion and the folded side flap portion.

According to the above-mentioned overwrapping package with mischief prevention, even if the side fold surface is mischievous and the single side flap fold portion is to be peeled off, the side flap fold portion is surrounded by the ultrasonic sealing line. Therefore, the side flap folded portion cannot be separated from the surrounding portion unless the ultrasonic seal line is broken. Moreover, since the ultrasonic seal line also joins the edge fold to the surrounding part,
Even if the side flap fold portion is separated, the ear fold portion cannot be separated.

Conversely, if the side fold surface is opened by mischief, the ultrasonic seal line must be broken, so that the trace of the opening remains as a break of the ultrasonic seal line. Opening of the package can be effectively prevented. The present invention also provides a method for folding the above-mentioned wrapped package with mischief prevention (Claim 2), and this folding molding method also has a feature in forming the side folded surface.

That is, in the step of forming the side folded surface, a part of the ear is folded from both end edges of the side surface of the box to form a pair of folded ear portions. One side flap is folded from one side edge of the side surface to form a side flap folded portion that is overlapped with the edge folded portion and whose tip extends from the other side edge of the side surface and overlaps the other side flap; Thereafter, by performing an ultrasonic fusing process along the other side edge of the side surface, the tip of the folded side flap portion and the other side flap are blown. Such an ultrasonic fusing process forms an ultrasonic seal line along the other side edge of the side surface, and the ultrasonic seal line joins the edge fold portion and the side flap fold portion to the surrounding portion.

The above-described step of forming the side fold surface can be performed only by adding the ultrasonic fusing treatment to the normal fold forming, and does not require a significant change in the packaging machine.
Further, in the above-mentioned overwrapping package and the folding forming method therefor, a resistance seal is formed between the side flap folded portion and each of the edge folded portions by a normal heat seal, and the side flap folded portion and the edge folded portion are formed by the resistance seal. It is preferable to join between the parts.

[0012]

FIG. 1 shows an example of an overwrapping package with mischief prevention. The overwrapping package comprises a box 2 containing the product and a heat-fusible film wrapping material 4 wrapping the box 2, and an opening tape 6 is applied to the inner surface of the film wrapping 4 in advance. I have. The box 2 is a hexahedron composed of a pair of end surfaces and side surfaces on the front surface, the rear surface, the long side and the short side. The film wrapping material 4 has a surrounding portion 8 formed by folding a body around the box 2 in a U-shape, a body flap folding surface 10 having one end face of the box 2 closed, and both sides of the box 2. Side folding surfaces 12 each having a closed surface.

More specifically, the body flap folding surface 10 is formed by sequentially folding upper and lower body flaps 14 and 16 projecting from one end face of the box body 2 toward the one end face in accordance with the body folding of the film packaging material 4. And the body flaps 14 and 16 are joined by ordinary heat sealing. Here, as shown in FIG. 2, the film packaging material 4 has a laminate structure in which both surfaces of its base material 4a are covered with a sealant layer 4b, and the heat sealing is performed by the sealant layer 4 which is in contact with each other of the film packaging material 4.
A so-called resistance seal 4c is formed by melting and joining b by heating from an external heating element. Since such a resistance seal 4c heats the film packaging materials 4 overlapping each other from only one side, the sealant layers 4b in contact with each other are melted only in the outer sealant layer 4b satisfactorily. The power is relatively weak.

On the other hand, each of the side folding surfaces 12 is formed such that the film wrapping material 4 protrudes from both sides of the box body 2 in accordance with the above-described body folding of the film wrapping material 4 and the formation of the body folding surface 10.
, That is, the ears are sequentially folded toward the corresponding side surface. More specifically, first, the side folding surface 12 includes a pair of ear folding portions 18 formed by folding ear portions connected to both end surfaces of the box body 2 from both end edges of the box body 2, and these ear folding portions 18. With the formation of
A side flap folded portion 20 is formed by folding one of a pair of side flaps formed of the rest of the ear from one side edge of the side surface of the box body 2. Conforms to and extends along the other side edge of the side surface of body 2.

The front edge of the side flap folded portion 20 and the pair of edge folded portions 18 are joined to the surrounding portion 8 by an ultrasonic seal line 22, and the ultrasonic seal line 22 is provided over the entire other side edge of the side surface. Extending across. Here, the ultrasonic seal line 22 is obtained by performing an ultrasonic fusing process along the other side edge of the side surface of the box 2, and the ultrasonic fusing process is performed by using the other of the pair of side flaps described above. Fusing from the surrounding part 8. Therefore, as is apparent from FIG.
The side flap folding part 20 is single.

The ultrasonic fusing process is different from the heat seal forming the resistance seal 4c described above.
Since the overlapping film wrapping materials 4 are internally heated by ultrasonic vibration to melt not only the sealant layer 4b but also the base material 4a and blow off the film wrapping material 4, FIG.
As shown in the figure, the ultrasonic sealing line 22 formed by ultrasonic fusing is composed of the base material 4a of the film packaging material 4 on the side of the surrounding portion 8, the side flap folded portion 20, and the ear folded portion 1.
The base material 4a of the film packaging material 4 on the eighth side is fused to each other, and the bonding force is stronger than the resistance seal.

Further, the side flap fold portion 20 and each of the ear fold portions 18 are subjected to the same ordinary heat sealing as in the case of the body flap fold surface 10, and are connected to each other by a resistance seal. According to the above-mentioned wrapping package with mischief prevention, even if the side fold surface 12 is mischievous and the resistance seal between the side flap fold portion 20 and each ear fold portion 18 is peeled off, the side flap folds. The leading edge of the part 20, and
Each fold 18 is provided with an ultrasonic seal line 2
2, the side flap folded portion 20 and the ear folded portion 18 cannot be separated from the surrounding portion 8, and the side folded surface 12 is not opened by mischief.

Conversely, if the side fold surface 12 is opened by mischief, the ultrasonic seal line 22 always breaks, so that the trace of the opening is broken by the ultrasonic seal line 22 and remains mischievous. Can be reliably prevented from opening the side folded surface 12. Further, since the ultrasonic seal line 22 does not intersect with the opening tape 6, the ultrasonic seal line 22 does not impair the openability of the overwrapping package.

Next, a method of folding and forming the overwrapping package on the box 2 will be described with reference to FIG. As shown in FIG. 5, the box 2 is transported along a predetermined packaging path,
In this transfer process, the fold forming of the film packaging material 4 is sequentially performed. First, the box body 2 is extruded toward the film packaging material 4 and subjected to the extrusion, and the film packaging material 4 is folded in a U-shape around the box body 2, whereby the box body 2 is moved in the circumferential direction. A surrounding portion 8 is formed, and upper and lower body flaps 14, 16 projecting from the rear end face of the box 2 are formed (position A in FIG. 5).

Here, the film packaging material 4 is supplied from above the packaging path and extends across the packaging path. Also,
Regarding the width of the film packaging material 4 used in this folding forming, as shown in FIG. 5, assuming that the width and height of the box 2 are represented by W and H, respectively, the width X of the film packaging material 4
Is X = W + 2H + 2α, which is longer than the width of the film wrapping material used for normal overwrapping.

At the position A, fixed claw claws (not shown) are arranged on both sides of the packaging path, and these claw claws are arranged on the front side of the box body 2 when the film packaging material 4 is folded. A part of the ear protruding from both sides of the end face is folded toward the corresponding side surface of the box body 2, whereby one of the pair of ear folds 18 described above, that is, the front fold 18 is formed. Is done.

Thereafter, the box 2 is transferred to the next position B,
At the position B, the body flap folding claw (not shown) is arranged above and below the packaging path. At the position B, first, the lower trunk flap folding claw is raised from its standby position, and the lower trunk flap 16 is folded toward the end face of the box 2. After this,
At the same time when the lower trunk flap folding claw starts to descend toward the standby position, the upper trunk flap folding claw descends from the standby position, and the upper trunk flap 14 is folded and overlaps the trunk flap 16. Here, the upper body flap folding claw has a built-in heater. At the same time as the folding of the body flap 14, the body flaps 14, 16 are heat-sealed.
A resistance seal, that is, a trunk seal is formed on the trunk flaps 14 and 16. At this time, the above-mentioned trunk flap folding surface 10 is formed. After that, the upper body flap folding claw is raised toward its standby position.

Following the formation of the trunk flap folding surface 10,
The ears are closed to secure a site for the ear fold 18 to be paired with the ear fold 18. After this, box 2
Is moved to a position C, and movable claw claws (not shown) are arranged on both sides of the packaging path at the C position. These movable claw claws move from the standby position toward the side surface of the box 2 and fold the aforementioned portions of the ears to form a rear cuff portion 18. When the front and rear folded portions 18 are formed in this manner, the upper and lower side flaps 21U and 21L are left on the ear.

Thereafter, the box 2 is further transferred from the position C to the position D, and between the position C and the position D, folding guides (not shown) are arranged on both sides of the packaging path.
These folding guides fold the upper side flaps 21U as the box 2 passes, thereby forming the side flap folding portions 20 described above. Here, as is clear from the drawing, the tip 23 of the side flap folded portion 20 extends to the lower side flap 21L, and is superposed on the lower side flap 21L. Here, the extension length of the tip portion 23 corresponds to the aforementioned α.

Thereafter, the box 2 is transported from the position D to the next position E, where ultrasonic fusing sealers (not shown) are arranged on both sides of the packaging path. This ultrasonic fusing sealer is the base end of the lower side flap 21L, that is,
An ultrasonic fusing process is performed along the lower side edge of the side surface of the box body 2 to blow off the lower side flap 21L from the surrounding portion 8 together with the distal end portion 23 of the side flap folding portion 20, and these lower side flaps 21L And tip 23
And at the same time, the ultrasonic seal line 22 is formed.

Thereafter, the box 2 is transferred to the next F position,
At this F position, side sealers (not shown) are arranged on both sides of the packaging path. These side sealers form a resistance seal, i.e., a side seal, between the side flap fold 20 and each ear fold 18, at which point the overwrapping package is completed. In the folding method described above, the ultrasonic sealing line 22 can be formed only by arranging the ultrasonic fusing sealer at the position E in the packaging path, so that it does not involve a significant change in a normal packaging machine. It can be implemented.

[0027]

As described above, the overwrapping package with anti-mischief of the present invention and the fold forming method thereof (claim 1,
According to 2), since the ultrasonic seal line is formed on the side folding surface of the overwrapping package, the side folded portion and each ear folded portion are separated from the surrounding portion unless the ultrasonic seal line is broken. Becomes impossible. Therefore,
When the side folded surface is opened by mischief, traces of the opening remain reliably as breaks of the ultrasonic seal line, and the misfolding of the overwrapping package can be effectively prevented.

[Brief description of the drawings]

FIG. 1 is a perspective view of an overwrapping package with mischief prevention according to one embodiment.

FIG. 2 is a diagram for explaining a resistance seal.

FIG. 3 is a cross-sectional view of the side folding surface of FIG. 1;

FIG. 4 is a diagram for explaining an ultrasonic seal line.

FIG. 5 is a perspective view showing a folding forming procedure of the overwrapping package of FIG. 1;

[Explanation of symbols]

 2 Box 4 Film packaging material 8 Surrounding part 10 Body flap folding surface 12 Side folding surface 14 Body flap 16 Body flap 18 Ear folding part 20 Side flap folding part 22 Ultrasonic seal line

Claims (2)

[Claims] 1. A box body obtained by folding a film packaging material on a box body, and a surrounding portion surrounding the box body in a U-shape, and projecting from an open end face of the box body with the body folding. A pair of body flaps that are sequentially folded toward the end face and a body flap fold surface that is joined to each other, with the formation of the body fold and the body flap fold surface,
Side folding surfaces obtained by successively folding ears protruding from both sides of the box toward the corresponding side surface of the box, wherein the side folding surface includes a part of the ear and both end edges of the side surface. And a pair of fold portions formed by folding each of the fold portions, and one side flap left on the ear with the formation of the fold portion is formed by folding from one side edge of the side surface, and A single side flap fold portion that is superimposed and whose leading edge coincides with the other side edge of the side surface; and a fold portion and the side flap fold portion that extend along the other side edge of the side surface and extend into the surrounding portion. And an ultrasonic seal line joined to the leading edge of the portion. 2. A box body is folded around a film packaging material to form a surrounding portion surrounding the box body in a U-shape, and a pair of body flaps obtained by the body folding is opened to the open side of the box body. Forming a body flap fold surface which is sequentially folded and joined to the end surface of the box body, and after forming the body fold or the body flap fold surface, the ears respectively protruding from both sides of the box body correspond to side surfaces of the box body. Forming side folding surfaces in order, forming a pair of ear folding portions by folding a part of the ears from both side edges of the side surfaces, and forming the side folding surfaces. One of the pair of side flaps left on the ear is folded from one side edge of the side face, overlapped with the ear fold portion, and the front end extends from the other side edge of the side face and overlaps the other side flap. Side flap folding portion that fits to the formation, along the other side edge of the side performing ultrasonic fusing process,
By fusing the front end portion of the side flap folded portion and the other side flap, an ultrasonic seal line for joining the ear folded portion and the side flap folded portion to the surrounding portion is formed. Folding method for overwrapping package with mischief prevention.