JP2003175972A - Packaging container and packaging sheet - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily discriminate an unfair opening of a lid by surely visually confirm whether a history of opening the lid exists or not in addition to ensuring easiness of packaging an article. <P>SOLUTION: A sheet 10 for wrapping used for packaging the article comprises a sheet main body 30 and a pressure-sensitive self-adhesive layer 40 laminated along at least one edge part of this sheet main body 30 and a perforation 31 is provided on the sheet main body 30 at a position of the pressure-sensitive self-adhesive layer 40 so that when the sheet main body 30 is once peeled off from the article, that fact can be displayed. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packaging container and a packaging sheet used for packaging various articles.

[0002]

2. Description of the Related Art Conventionally, there has been known a packaging container wrapped with a wrapping sheet (packaging sheet) 100 as shown in FIG. The wrapping sheet 100 is used for the purpose of closing an upper opening of a container body 110 of a packaging container used for packaging articles such as strawberries and tomatoes, and is a synthetic resin having a rectangular shape in a plan view. The wrap body 101 is made of a film, and a pair of pressure-sensitive adhesive layers 102 are laminated along side edges of the wrap body 101 facing each other.

Such a wrapping sheet 100 has a container body 11 in which food (articles) 120 such as strawberries and tomatoes are loaded inside so as to close an upper opening of the container body 110.
0, and then each adhesive layer 102 is attached to the container body 11
As shown in FIG. 9A, the upper surface opening of the container main body 110 is closed by pressing it against the side wall 12 of No. 0.

According to such a wrapping sheet 100, the top opening of the container body 110 can be easily closed, and when the wrapping sheet 100 is peeled off, the side on which the adhesive layer 102 is formed. By picking the edge portion of the container with a finger and pulling it upward, as shown in FIG. 9B, the adhesive layer 102 causes the side wall 111 of the container body 110 to move.
Since it can be easily peeled off, the opening / closing operation of the opening of the container body 110 can be easily performed.

[0005]

By the way, the conventional wrapping sheet 100 as described above can be easily peeled off from the container body 110, and the customer or the like can see the packaged food displayed in a store, for example. May be peeled off illegally. Then, even if the wrapping sheet 100 is peeled off, the pressure-sensitive adhesive layer 102 does not lose its adhesive force. Therefore, by pressing the pressure-sensitive adhesive layer 102 against the side wall 111 of the container body 110 again, the upper surface of the container body 110 is pressed. The opening can be closed by the wrapping sheet 100.

[0006] Then, the lid (the wrapping sheet 10
0) is illegally opened and the food 120 in the container body 110
When it is not possible to recognize that the lid opening operation has been performed despite being exposed to the outside, the packaged food loaded in the container body 110 is shipped as a product from the standpoint of hygiene. There is the inconvenience of not getting it.

The present invention has been made in order to eliminate the above-mentioned inconvenience, and ensures the visibility of whether or not there is a history of lid opening, while ensuring the ease of packaging of articles. Therefore, it is an object of the present invention to provide a packaging container and a packaging sheet by which a tampered lid can be easily identified.

[0008]

The invention according to claim 1 is
A packaging container used for wrapping an article, comprising a container body having an opening for loading an article in a part thereof, and a packaging sheet for closing the opening of the container body. An adhesive layer for adhering the packaging sheet to the container body is formed on one or both sides, and a fraud prevention means for visually recognizing that the packaging sheet is once peeled from the container body is provided. It is what

According to the present invention, after the article is loaded into the container body, the opening of the container body is closed by the packaging sheet, and then the pressure-sensitive adhesive layer is pressed toward the container body through the packaging sheet, whereby the packaging sheet is Is bonded to the container body via the adhesive layer, whereby the packaged state of the article in which the opening of the container body is closed by the packaging sheet can be easily obtained. Further, when the article is taken out from the packaging container, the edge portion may be picked and the packaging sheet may be peeled off from the container body.
By doing so, the container body can be easily opened.

Even if the packaging sheet is peeled off from the container body and then re-attached to the container body, the tampering prevention means for visually recognizing the fact is provided. It becomes possible to easily visually identify whether or not the packaging container is opened, and it is possible to effectively prevent the inconvenience that the product is given to the consumer even though the packaging container is once opened.

According to a third aspect of the present invention, there is provided a packaging sheet used for packaging an article, comprising a sheet body, a pressure-sensitive adhesive layer laminated along at least one edge of the sheet body, and the pressure-sensitive adhesive layer. It is characterized in that the agent layer is provided with a fraud prevention means capable of visually recognizing that the agent layer has been peeled off from the adhered article.

According to the present invention, the same effect as the effect of the invention of claim 1 is ensured, and even if the article is not contained in the packaging container, the packaging sheet is directly attached to the article. It is possible to wrap and perform packaging processing. Even in the case of packaging an article by only the packaging sheet in the state where such a packaging container does not exist, when the packaging sheet is illegally peeled from the article, the fraud prevention means can visually confirm that. Once the packaging sheet has a history of being peeled off, by identifying it, it is possible to effectively prevent the inconvenience of the product from reaching the consumer.

According to a second aspect of the present invention, in the first aspect of the invention, the fraud prevention means is a perforation extending in the longitudinal direction of the pressure-sensitive adhesive layer along the pressure-sensitive adhesive layer formed on the packaging sheet side. Alternatively, the packaging container is a printed layer printed on the adhesive layer.

According to a fourth aspect of the present invention, in the invention according to the third aspect, the fraud prevention means is a perforation extending in the longitudinal direction of the adhesive layer or a printed layer printed on the adhesive layer. It is a characteristic packaging sheet.

In these inventions, the printing layer is composed of a printing ink or the like capable of expressing characters, figures, symbols or colors formed by printing or a combination thereof. In addition, in the present invention, not only when the characters and the like can be expressed by the printing layer itself, but also when the characters and the like can be expressed by the relationship between the existence of the printing layer and the environment around the printing layer, Included in the concept.

According to these inventions, when the fraud prevention means is a perforation, the object to be packaged (the container body in the case of the invention of claim 2 and the container body in the case of the invention of claim 4 is various packages. Once the packaging sheet is peeled from the object), the perforation provided along the pressure-sensitive adhesive layer is broken by this peeling operation, so even if the packaging sheet in this state is re-attached, it will break and separate. The perforations are not restored to their original state, and therefore, by visually recognizing the perforations in this state, it is possible to easily identify that the packaging sheet has been once peeled off.

Further, in the case where the fraud prevention means is a printed layer printed on the pressure-sensitive adhesive layer, and in the case of visible image printing in which the printed layer appears from the beginning of the printing process, the packaging sheet is once peeled from the object to be packaged. And this peeling operation deforms the printing layer,
Since this deformation does not easily return to its original state, even if the packaging sheet in such a state is reattached, it is possible to easily identify that the packaging sheet has been once peeled off by visually recognizing the deformed printing layer.

In addition, the printed characters and the like cannot be visually recognized at the beginning, and so-called latent image printing is performed so that the printed characters are exposed by peeling the printing layer with the pressure-sensitive adhesive layer peeled off. When such latent image printing is applied, by peeling the packaging sheet from the article to be packaged, the printed characters are exposed on the adhesive layer by peeling the printing layer, and When the printed characters, etc. are exposed, the exposed printed characters, etc. will not disappear even if the packaging sheet in such a state is re-attached. Therefore, by visually recognizing these printed characters, etc., the packaging sheet was once peeled off. Can be easily identified.

[0019]

FIG. 1 is a plan view showing an embodiment of a wrapping sheet 20 according to the present invention, and FIG. 2 is a sectional view taken along line AA. As shown in these drawings, the wrapping sheet (packaging sheet) 20 covers the upper opening of the container body 11 of the box-shaped packaging container 10 (FIG. 4) described later, and has a rectangular shape in a plan view. The sheet body 30, the pair of widthwise adhesive layers 40 laminated in a strip shape on one surface side (the upper surface side in FIG. 2) of the sheet body 30, and the sheet body 3
0 and the release agent layer 50 laminated on one surface on the other surface side.

The sheet body 30 is manufactured by using a known synthetic resin film made of polyethylene, polypropylene, polyamide, polyvinyl chloride or the like as a raw material. A rectangular sheet body 30 is formed by cutting the synthetic resin film original sheet 21 (FIG. 3) into a predetermined size. Further, in the present embodiment, perforations 31 as fraud prevention means are provided in parallel to the edges (left and right edges extending in the vertical direction in the example shown in FIG. 1) of the sheet main body 30 facing each other. It is provided.

The perforations 31 are provided only in the seat body 30 in the example shown in FIG. 2, but the present invention is not limited to providing the perforations 31 only in the seat body 30. Perforations 31 may be provided so as to penetrate two layers of the main body 30 and the adhesive layer 40, or may be provided so as to penetrate two layers of the sheet main body 30 and the release agent layer 50. Furthermore, perforations 31 are formed so as to penetrate the three layers of the sheet body 30, the adhesive layer 40 and the release agent layer 50.
May be provided.

The adhesive layers 40 are laminated on the sheet body 30 so as to cover the perforations 31 on one side of the sheet body 30. Such an adhesive layer 40
A known material such as rubber is applied to the sheet body 30 by a known application method such as a gravure printing method.

By providing a pair of such adhesive layers 40 on the sheet body 30, the sheet body 3
Between the adhesive layers 40 of 0, the packaging container (container body) 10
A lid portion 32 that closes the upper opening is formed, and a holding edge portion 33 where the adhesive layer 40 does not exist is formed at an outer position of each adhesive layer 40. The gripping edge portion 33 is for gripping with a finger when peeling off the wrapping sheet 20 whose upper surface opening of the container body 11 is closed.

Further, the adhesive layer 4 in the sheet body 30
A non-adhesive portion 34 of a slight size in which the adhesive layer 40 does not exist is formed at a position outside each end portion of 0. These non-adhesive portions 34 are for preventing the adhesive from adhering to the cutting blade 24 in the step of cutting the raw sheet 21 (FIG. 3) when manufacturing the wrapping sheet 20.

The release agent layer 50 is used as the wrapping sheet 20.
In order to prevent the pressure-sensitive adhesive layer 40 of one wrapping sheet 20 from sticking to the other surface side of the other wrapping sheet 20 in a stacked state, silicone-based, wax-based or fluorine-based adhesives are used. It is formed by coating a release agent such as a system by a predetermined method.

FIG. 3 is a perspective view of a raw sheet for explaining the method for manufacturing the wrapping sheet 20. As shown in this figure, when manufacturing the wrapping sheet 20,
A long strip-shaped raw sheet 21 is used. The original sheet 21 is wound in advance to form an original roll 22. The original sheet 21 is unwound from the original roll 22 and sequentially drawn out, and first, a release agent is applied to the back surface side in FIG.
Is formed.

Subsequently, perforations 31 are formed at predetermined positions on both sides in the width direction of the original sheet 21 so as to extend in the longitudinal direction. The process of forming the perforations 31 is performed by using the release agent layer 5
It may be executed before the coating process of 0.

Next, the release agent layer 50 and the perforations 31
The original sheet 21 on which the sheet is being formed and being pulled out,
A predetermined pressure-sensitive adhesive is printed on both sides in the width direction on the front surface side in FIG. 3 by a known printing method such as a gravure printing method, so that the pressure-sensitive adhesive layers 40 are sequentially formed at a predetermined pitch. Then, between the pressure-sensitive adhesive layers 40 that are adjacent to each other in the longitudinal direction, there is provided a portion that has not been subjected to the printing process for forming the non-sticky portion 34. A to-be-cut area 23 extending in the width direction indicated by the alternate long and short dash line passes through this portion.

Then, the original sheet 21 on which the adhesive layer 40 is formed is further pulled out, and cut at a predetermined position along the predetermined cutting area 23 by the cutting blade 24 to sequentially manufacture the wrapping sheet 20. To be done. The produced wrapping sheets 20 are sequentially stacked and commercialized. However, since the adhesive layer 40 is in contact with the release agent layer 50, each of the stacked wrapping sheets 20 is It is possible to prevent the inconvenience of sticking to each other.

FIG. 4 is a perspective view showing an embodiment of the packaging container 10 according to the present invention. (A) is a state where the wrapping sheet 20 has started to be peeled off, and (b) is a wrapping sheet 20.
It shows the state that each is being peeled off.

The packaging container 10 comprises a box-shaped container body 11 having an open top surface, and the wrapping sheet 20 covering the top surface opening of the container body 11. Then, the lid portion 32 of the sheet body 30 covers the upper surface opening of the container body 11,
In addition, each adhesive layer 40 adheres to the side wall 12 of the container body 11 so that the upper opening of the container body 11 is closed by the sheet body 30.

When the wrapping sheet 20 in the closed state is peeled off from the container body 11, as shown in FIG. 4 (a), the holding edge 33 of the sheet body 30 is picked up and directed upward. Pull up. Then, the adhesive layer 40 that adheres is peeled off from the side wall 12 of the container body 11. At this time, the perforation 31 of the sheet body 30 provided along the adhesive layer 40 is shown in FIG. Since it tears as shown, the holding edge 33 is separated from the lid 32.

Even if the perforations 31 are torn when the wrapping sheet 20 is peeled off from the container body 11 in this way, the sheet body 30 is peeled off by pinching the end of the lid portion 32, and the sheet body 30 is peeled off. It can be opened easily.

When the cover body 32 is then picked up and the sheet body 30 is peeled off, the perforation 31 is torn while the lower half of the adhesive layer 40 remains adhered to the container body 11, so that the sheet When the main body 30 is removed from the container body 11, the adhesive layer 40 is attached to the side wall 12 of the container body 11.
And the holding edge of the sheet body 30 remains.

Therefore, once the lid portion 32 of the wrapping sheet 20 is peeled from the container body 11, even if the adhesive layer 40 remaining on the peeled lid portion 32 is re-adhered to the side wall 12, The perforation 31 and the container body 11
It is extremely difficult to fit the perforation 31 of the adhesive layer 40 portion remaining on the side to the original shape, and even if the lid is opened once and then the lid is restored, a trace of the opening remains. . Then, in a state where the lid is once opened and then closed again, it is possible to easily identify that the wrapping sheet 20 has been peeled off by visually recognizing the irregular perforations 31.

FIG. 5 is a plan view showing another embodiment of the wrapping sheet. The wrapping sheet 20 of this embodiment
a is different from the wrapping sheet 20 of the previous embodiment in that the broken line adhesive layer 41 formed by aligning the small unit pressure-sensitive adhesive layer 42 along the perforations 31 in a broken line shape is adopted. ing. Others of the wrapping sheet 20a are the same as those described above. The size and shape of each unit pressure-sensitive adhesive layer 42 can be set arbitrarily. Incidentally, in the example shown in FIG. 5, each unit pressure-sensitive adhesive layer 42 is set in a rectangular shape.

Such a broken line pressure-sensitive adhesive layer 41 is provided only on one side edge of the wrapping sheet 20a, and the same linear pressure-sensitive adhesive layer 40 is provided on the other side edge. Alternatively, the dashed line adhesive layer 41 may be provided on each side of the wrapping sheet 20a.

FIG. 6 is a perspective view showing a wide original roll 25 for explaining another method for manufacturing the wrapping sheet 20. In this embodiment, a wide roll having a width dimension n times (n is an integer, n = 3 in the example shown in FIG. 6) of the width of the wrapping sheet 20 is used as the raw roll (wide roll 25). It is adopted. That is, the wide original roll 25 of this embodiment is the original roll 22 of the previous embodiment.
This is equivalent to the case where n pieces (the unit original rolls 22a in this embodiment) are arranged in a row in a row in the width direction. The wide original roll 25 is divided into n equal parts in the width direction so as to extend in the longitudinal direction (the boundary area 26 between the adjacent sections is indicated by a dashed line), and each unit is divided into units. Each original roll 22a is set.

While the wide original fabric roll 25 is unwound and the wide original fabric sheet 25a is drawn out, perforations 31 are provided for each unit original fabric roll 22a, and the raw fabric sheet 25a shown in FIG. A release agent layer 50 is formed on the back side of the unit, and a pressure sensitive adhesive layer 40 is laminated on the front side of the unit original sheet sheet 22b in FIG. 6 so as to cover each perforation 31, as in the previous embodiment. The wrapping sheet 20 is surrounded by the area to be cut 23 indicated by the two-dot chain line and the boundary area 26 indicated by the one-dot chain line.
Are formed respectively.

Then, in the final step, the release agent layer 5
The wide original fabric sheet 25a provided with 0, the perforation 31 and the adhesive layer 40 is cut by the cutting blade 24 along the boundary region 26 and the planned cutting region 23, and each cut piece becomes the wrapping sheet 20. To be done.

According to the method for manufacturing the wrapping sheet 20 of this embodiment, since the wide original fabric sheet 25a having the width dimension n times that of the original fabric sheet 21 is adopted as the raw material, The production efficiency is n times higher than that of the above, and contributes to the improvement of the productivity of the wrapping sheet 20.

As described in detail above, the wrapping sheet 20 of the present embodiment covers the upper opening of the container body 11 and wraps the articles loaded in the container body 11, and 30 and the pressure-sensitive adhesive layer 40 laminated on opposite edges of the sheet body 30, respectively, so that after the article is loaded into the container body 11, the opening of the container body 11 is opened by the wrapping sheet 20. And then pressing the adhesive layer 40 against the side wall 12 of the container body 11 causes the adhesive layer 40 to adhere to the container body 11, thereby securely closing the opening of the container body 11 with the wrapping sheet 20. be able to.

When the article is taken out from the packaging container 10, the holding edge portion 33 of the wrapping sheet 20 may be picked up to peel off the adhesive layer 40 from the container body 11. By doing so, the packaging container 10 can be easily opened. Since the sheet main body 30 is provided with perforations 31 as fraud prevention means so as to overlap with the adhesive layer 40, the perforations 31 are weaker in strength than other portions when the lid is opened. Fails to withstand tensile stress and breaks.

Therefore, when the wrapping sheet 20 is illegally peeled from the container body 11, the adhesive layer 40 of the wrapping sheet 20 is re-attached to the side wall 12 of the container body 11 after the peeling. However, since the perforation 31 once broken and separated cannot be restored to its original state, visually recognizing the perforation 31 in this state makes it easy to identify that the wrapping sheet 20 has been peeled off illegally. As a result, it is possible to effectively prevent the inconvenience that defective products are given to consumers.

The present invention is not limited to the above-mentioned embodiment, but also includes the following contents.

(1) In the above embodiment, the perforation 31 formed at the edge of the sheet body 30 is adopted as the fraud prevention means, but in the present invention, the fraud prevention means is the perforation 31. However, the present invention is not limited to this, and may be a print layer capable of displaying characters, figures, symbols or colors printed on the pressure-sensitive adhesive layer 40 or a combination thereof. The printing method may be visible image printing in which printing can be seen from the beginning, or latent image printing in which printing does not appear unless the adhered adhesive layer 40 is peeled off.

In the case of visible image printing, when the pressure-sensitive adhesive layer 40 is attached to the container body 11, the printing layer representing characters, figures, etc. may be transferred to the container body 11 side. By doing so, when the adhesive layer 40 is once peeled and then re-attached, the characters, figures, etc. transferred to the container body 11 and the letter figures, etc. remaining on the adhesive layer 40 side are accurately obtained. Since they do not overlap with each other, it is possible to identify visually that the wrapping sheet 20 has been peeled off illegally.

Further, in the case of latent image printing, a printing method may be adopted in which printed characters and the like are exposed on the adhesive layer 40 by peeling off the adhesive layer 40. By doing this, once the pressure-sensitive adhesive layer 40 is peeled off, predetermined characters (for example, "opened") appear on the pressure-sensitive adhesive layer 40, and even if the sheet body 30 is re-attached to the container body 11, Since the printed characters and the like do not disappear, it is possible to identify visually that the wrapping sheet 20 has been peeled off.

FIG. 7 is an enlarged cross-sectional view showing an embodiment of the tamperproof layer (tamperproof means) 43 formed by latent image printing. FIG. 7A shows the tamperproof layer 43 in the container body 11.
The state of being adhered to the side wall 12 of the, (b) is the fraud prevention layer 4
3 shows the state of being being peeled off from the side wall 12 of the container body 11. In addition, the fraud prevention layer 4 described here
3 can serve as an adhesive layer,
It is included in the concept of the pressure-sensitive adhesive layer according to the present invention.

As shown in FIG. 7A, the fraud prevention layer 4
3 is a transparent display layer 44 formed by printing latent image characters and the like on the sheet body 30, a coloring layer 45 printed on the sheet body 30 including the display layer 44, and laminated on the coloring layer 45. And an adhesive layer 46 adhered to the side wall 12 of the container body 11. The fraud prevention layer 43 is printed on the sheet body 30 by a gravure printing method.

The display layer 44 is printed with an ink made of a transparent silicone material having a peeling property.
The colored layer 45 is printed on the surface of the sheet body 30 so as to cover the display layer 44 with a water-based or solvent-based colored ink. A predetermined adhesive material is further applied to the colored layer 45 to form the adhesive layer 46, whereby the fraud prevention layer 43 is finished. Such fraud prevention layer 43
When viewed from the transparent sheet body 30 side, since the display layer 44 is also transparent, only one color of the colored layer 45 can be visually recognized, and the printed characters and the like indicated by the display layer 44 are latent images.

The fraud prevention layer 43 having such a configuration
According to FIG. 7, when the fraud prevention layer 43 is peeled from the side wall 12 of the container body 11, as shown by the arrow in (b) of FIG. 7, the adhesive force of the peelable display layer 44 to the sheet body 30 is colored. Since the adhesive strength to the layer 45 is weaker, the colored layer 45
And the adhesive layer 46 accompanies the sheet main body 30 which has caused film breakage along the edge of the display layer 44. Therefore, when the sheet main body 30 is peeled off from the container main body 11, the sheet main body 30 in the portion where the display layer 44 is laminated becomes transparent, and in association with the surrounding coloring layer 45, the printed characters and the like are visualized as white outlines. Will appear.

When a visible image such as a printed character appears on the sheet body 30 by peeling it off from the container body 11, the tamper-proof layer 43 is re-adhered to the container body 11 and the visible image remains. Since it does not exactly overlap with the upper display layer 44, the visible image does not disappear even if it is re-adhered.
It is possible to identify whether or not 0 has been illegally opened.

As described above, the fraud prevention layer 43 is used as the wrapping sheet 2
Although the example of providing the tamperproof layer 43 on the side of the container body 11 has been described, the same effect as above can be obtained.

(2) In the above embodiment, the adhesive layer 40 is provided on each of the edges of the sheet body 30 which face each other.
Is formed, and a perforation 31 as fraud prevention means is provided in the seat body 30 in this portion.
The perforations 31 and the adhesive layer 40 are not limited to being provided on the edges of the sheet body 30 that face each other, but may be provided on the three edges of the sheet body 30 depending on the packaging situation. , May be provided on all sides. In addition, when the sheet body 30 is opened by fixing one edge portion to the article to be packaged, the pressure sensitive adhesive is applied only to one portion of the edge portion on the opposite side to the fixing side of the sheet body 30. A layer 40 and a perforation 31 may be provided. This also applies to the case where the fraud prevention means is the fraud prevention layer 43 capable of displaying characters, figures, etc. printed on the adhesive layer.

(3) In the above embodiment, the adhesive layer 40 is provided on the wrapping sheet 20 side, but the present invention is limited to the adhesive layer 40 being provided on the wrapping sheet 20 side. However, it may be provided on the container body 11 side. In this case, the perforation 31 is provided on the wrapping sheet 20 side. However, when the fraud prevention layer 43 is adopted instead of the perforation 31, the fraud prevention layer 43 is also used as the adhesive layer 40. It is provided on the 11 side.

(4) In the above embodiment, the release agent layer 50, the perforations 31, and the adhesive layer 40 are sequentially formed while the original sheet 21 is pulled out from the original roll 22. Instead, in the first step, the release agent layer 50 is laminated on the original sheet 21 to form a roll with the release agent layer 50, and in the second step, the release agent layer 50 is removed from this roll.
The original sheet 2 while pulling out the original sheet 21 with
1 is provided with perforations 31 to form a roll with perforations 31, and finally the release agent layer 50 while pulling out this roll.
And the adhesive layer 4 on the original sheet 21 with perforations 31
You may make it stack 0. For this,
The same applies to the wide original roll 25.

(5) In the above embodiment, the release agent layer 50 is laminated over the entire back surface side of the raw sheet 21 in FIG. 3, but instead of this, the pressure-sensitive adhesive layer 4 is used.
The release agent layer may be partially provided only on the surface corresponding to 0.

(6) In the above embodiment, a transparent synthetic resin sheet is used as the wrapping sheet 20, but instead of this, a so-called paper sheet or synthetic resin laminated with a metal foil is used. You may use a laminated film etc.

(7) In the above embodiment, the rectangular parallelepiped container body 11 having an opening on the upper surface is adopted as the object to be wrapped by the wrapping sheet 20, but the present invention is not limited to this. The container body 11 is not limited to the above, and may be the article itself to be packaged.

(8) In the above embodiment, the perforations 31 are provided on the sheet body 30 so as to overlap the pressure sensitive adhesive layer 40, but in the present invention, the sheet body 30 overlaps the pressure sensitive adhesive layer 40. The adhesive layer 40 in the sheet body 30 is not limited to the above.
It may be provided at a more outer position (that is, the gripping edge portion 33). Even if the perforations 31 are provided at such positions, when the gripping edge portion 33 is pinched and the adhesive layer 40 is peeled off, a force is applied to the perforations 31 position of the sheet body 30 to break the perforations 31. Therefore, the function as fraud prevention means is secured.

(9) In the above embodiment, the perforations 31 as the fraud prevention means may be replaced with recessed grooves formed in the sheet body 30 by a press process or the like. By doing so, the thickness dimension of the groove bottom portion of the concave groove is determined by
Since it is thinner than other parts of 0, the seat body 30
When peeling off the container body 11 from the container body 11, the concave groove portion is easily broken, and the function as fraud prevention means can be exerted.

(10) In the above-described embodiment, as shown in FIG. 8, a plurality of adhesive layers 40 are provided on each of the opposing edges of the sheet body 30, and each adhesive layer 40 is provided.
The perforation 3 so that it is overlapped with or between the adhesive layer 40
1 may be provided. By doing so, the joining state of the sheet body 30 to the container body 11 is further ensured by the plurality of adhesive layer 40, and when the sheet body 30 is peeled from the container body 11, the sewing machine provided in a plurality of rows is provided. Since at least one of the eyes 31 is broken, the illicit opening can be more reliably visually recognized.

Incidentally, in FIG. 8, the seat body 30
An example in which two strips of the adhesive layer 40 are provided on each of the opposite edge portions, and perforations 31 are provided both at a position overlapping with each adhesive layer 40 and at a position between each pair of adhesive layers 40 However, according to the present invention, the perforation 31 has each adhesive layer 4
It is not limited to being provided at both the position overlapping with 0 and the position between each pair of adhesive layers 40, and the perforation 31 may be provided only between each pair of adhesive layers 40. The perforation 31 may be provided only at a position overlapping the adhesive layer 40.

[0065]

The packaging container according to claim 1 and claim 3
According to the packaging sheet described, by closing the opening of the packaging container with the packaging sheet, by subsequently pressing the adhesive layer on the outer surface of the container body, the adhesive layer adheres to the container body, thereby the opening of the container body It is possible to easily obtain a packaging state in which the packaging sheet is closed. Further, when the article is taken out from the packaging container, the container body can be easily opened by pinching the edge of the packaging sheet and peeling the adhesive layer from the container body.

Even if the packaging sheet is illegally peeled from the container body and then re-attached to the container body, the illegality preventing means for visually recognizing the fact is provided. It becomes possible to easily identify whether or not the packaging container is opened by visual inspection, and effectively prevent the inconvenience that the product is delivered to the consumer even if the packaging container is once opened illegally. be able to.

According to the packaging sheet of claim 3, in particular, even when an object which is not contained in the packaging container is to be packaged, the packaging sheet is illegally wrapped by directly wrapping the packaging sheet on the article. A packaging process can be applied so that the peeling can be identified.

According to the packaging container of the second aspect and the packaging sheet of the fourth aspect, when the fraud prevention means is a perforation, once the packaging sheet is peeled from the object to be packaged, the peeling operation causes the pressure-sensitive adhesive layer. Since the perforations provided in the vicinity of the perforations are broken, even if the packaging sheet in such a state is re-attached, the perforations that have once been broken will not be restored to their original state. By visually recognizing, it is possible to easily identify that the packaging sheet has been peeled off once.

Further, when the fraud prevention means is a printing layer capable of showing characters, figures, symbols or colors printed on the adhesive layer or a combination thereof, the printing layer is removed by once peeling the packaging sheet from the object to be packaged. Even if the packaging sheet is re-adhered, it is possible to easily identify that it has been peeled off illegally, because it deforms or the printed layer that was a latent image appears as a visible image.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of a wrapping sheet according to the present invention.

FIG. 2 is a cross-sectional view taken along the line AA of the wrapping sheet shown in FIG.

FIG. 3 is a perspective view of a raw sheet for explaining a method for manufacturing a wrapping sheet.

FIG. 4 is a perspective view showing an embodiment of a packaging container,
(A) shows the state where the wrapping sheet has started to be peeled off, and (B) shows the state where the wrapping sheet is being peeled off.

FIG. 5 is a plan view showing another embodiment of the wrapping sheet.

FIG. 6 is a perspective view showing a wide original roll for explaining another method for manufacturing a wrapping sheet.

FIG. 7 is an enlarged cross-sectional view showing an embodiment of an anti-tamper layer formed by latent image printing, (a) shows a state in which the anti-tamper layer is attached to the side wall of the packaging container, and (b) shows , The tamperproof layer is being peeled from the side wall of the packaging container.

FIG. 8 is a plan view of a wrapping sheet showing an example in which two strips of an adhesive layer are provided on opposite edge portions of a sheet body.

FIG. 9 is a perspective view illustrating a conventional packaging container wrapped with a wrapping sheet, and FIG. 9A is a state in which the packaging container is wrapped with a wrapping sheet,
(B) shows the state in which the wrapped wrapping sheet is being peeled from the packaging container.

[Explanation of symbols]

10 packaging container 11 container body 12 Side wall 20,20a Wrap sheet (packaging sheet) 21 original sheet 22 original sheet roll 22a Unit roll sheet 22b Unit roll sheet 23 Area to be cut 24 Cutting blade 25 wide original roll 25a wide original sheet 26 boundary area 30 sheet body 31 Perforations (fraud prevention means) 32 Lid 33 Holding edge 34 Non-adhesive part 40 Adhesive layer 41 dashed line adhesive layer 42 unit adhesive layer 43 Fraud prevention layer (fraud prevention means) 44 display layer 45 colored layer 46 Adhesive layer 50 Release agent layer 110 Packaging container (container body) 111 side wall

Claims (4)

[Claims] 1. A packaging container used for packaging an article, comprising a container body having an opening for loading an article in a part thereof, and a packaging sheet for closing the opening of the container body. An adhesive layer for adhering the packaging sheet to the container body is formed on either or both of the packaging sheet and the fraud prevention means for visually recognizing that the packaging sheet is once peeled from the container body. A packaging container characterized by being. 2. The fraud prevention means is a perforation extending in the longitudinal direction of the pressure-sensitive adhesive layer along the pressure-sensitive adhesive layer formed on the packaging sheet side, or a printed layer printed on the pressure-sensitive adhesive layer. The packaging container according to claim 1, which is characterized in that: 3. A packaging sheet used for packaging an article, comprising a sheet body, a pressure-sensitive adhesive layer laminated along at least one edge of the sheet body, and the pressure-sensitive adhesive layer adhered to the article. A wrapping sheet, characterized in that it is provided with tampering prevention means capable of visually confirming that it has been peeled off. 4. The packaging sheet according to claim 3, wherein the fraud prevention means is a perforation extending in the longitudinal direction of the pressure-sensitive adhesive layer, or a printed layer printed on the pressure-sensitive adhesive layer.