JP2010111422A - Adhesive sheet with peeling-detecting function - Google Patents

Abstract

To realize a configuration capable of detecting adhesion to an adherend and subsequent peeling from the adherend without using release paper.
SOLUTION: A part of one surface of a film substrate 10 has a peeling display function part 20 that remains on the adherend when peeled after being attached to the adherend. A perforation 11 formed in a region adjacent to the peeling display function unit 20 of the material 10, and when the film substrate 10 is folded at the perforation 11, a region facing the peeling display function unit 20 is formed by a release agent. The peeled portion 30 is provided.
[Selection] Figure 1

Description

  The present invention relates to an adhesive sheet with a peeling detection function that can detect peeling after sticking to an adherend.

  Conventionally, food products such as rice cakes and rice cakes are sold in transparent plastic containers. Such a plastic container has an opening surface. After the food product is put through the opening surface, the opening surface is wrapped with a transparent film so that the food product does not fall out of the plastic container. Is done. The transparent film that wraps the opening surface of the plastic container displays a trademark such as the variety and product name of the food product. The consumer purchases the food product while referring to the displayed trademark. Yes.

  However, in recent years, it has been practiced to disguise a food product trademark by replacing the food product contained in the plastic container as described above. The transparent film covers the opening of the plastic container and is attached to the plastic container at both ends, and the food contained in the plastic container is removed by removing the adhesive part and replacing the food product. The trademark of the product is disguised.

  Here, a release layer is provided on a part of one surface of the substrate layer support, and a colored layer and an adhesive layer are sequentially laminated on the entire surface of one surface of the substrate layer support so as to cover the release layer. In the case where the adhesive layer is peeled off after being adhered to the adherend, the portion of the colored layer laminated on the peelable layer remains on the adherend together with the adhesive layer, thereby being peeled off. A pressure-sensitive adhesive sheet is conceivable (for example, see Patent Document 1).

If the structure of such an adhesive sheet is used for the film for wrapping the opening surface of the plastic container described above, it can be detected when the film is peeled off after being attached to the plastic container. It is possible to prevent impersonation of the trademark of the foodstuff that has entered.
JP 2004-323658 A

  In the above-mentioned pressure-sensitive adhesive sheet, since the pressure-sensitive adhesive layer is laminated on the outermost surface of one surface of the base material layer support, the release paper can be peeled so as to cover this pressure-sensitive adhesive layer before use. It is necessary to stick it on. For this reason, there is a problem in that the cost of the release paper is increased, and dust is generated by the release paper after the release paper is peeled off in order to use the adhesive sheet.

  The present invention has been made in view of the problems of the conventional techniques as described above, and detects sticking to an adherend and subsequent peeling from the adherend without using a release paper. It aims at providing the sticking sheet with a peeling detection function which can implement | achieve a possible structure.

In order to achieve the above object, the present invention provides:
Adhering to the adherend by having a peeling display function part that remains on the adherend when part of one surface of the sheet substrate is peeled off after being attached to the adherend. In the adhesive sheet with a peeling detection function that makes it possible to detect the subsequent peeling,
A folded portion formed in a region adjacent to the peeling display function portion of the sheet substrate;
When the sheet base material is folded at the folding portion, the sheet base material has a peeling portion formed by a release agent in a region facing the peeling display function portion.

  In this invention comprised as mentioned above, in the state before use, it is folded in the folding part formed in the sheet | seat base material. This folding part is formed in a region adjacent to the peeling display function part that remains on the adherend when the sheet base material is peeled off after being attached to the adherend. When the sheet base material is folded, the peeling portion is formed by the release agent in the region facing the peeling display function portion. Therefore, when the sheet base material is folded, the peeling display function portion becomes the peeling portion. It is in a state of being stuck so as to be peelable. When using this adhesive sheet with a peel detection function, the peel display function part and the peel part are peeled off, the sheet base material folded at the folding part is opened, and the peel display function part is attached to the adherend. To use. The peeling display function part has a configuration that can be attached to the adherend, but in the state before use, it is attached to the peeling part formed on the sheet base material so that it can be peeled off. There is no need for a release paper to be attached to the release display function part in the previous state.

  Moreover, if the peeling part is provided in the edge part of a sheet | seat base material, when sticking this sticking sheet with a peeling detection function to articles | goods etc., it can pick and stick a peeling part as a picking allowance. Therefore, it becomes easy to stick the sticking sheet with a peel detection function on an article or the like, and the hand or the like is not soiled by the peel display function unit.

  As described above, in the present invention, a part of one surface of the sheet substrate has a peeling display function part that remains on the adherend when peeled after being attached to the adherend, Furthermore, the folding part formed in the area adjacent to the peeling display function part of the sheet base material and the peeling agent formed in the area facing the peeling display function part when the sheet base material is folded at the folding part. Since it has a configuration having a peeling portion, the peeling display function portion has a configuration that can be attached to an adherend, but it is attached to the peeling portion so as to be peelable by folding the sheet base material. Realize a configuration that can detect adhesion to an adherend and subsequent peeling from the adherend without requiring a release paper to be attached to the peel display function section before use. Can do.

  In addition, in the case where the peeling part is provided at the end of the sheet base material, when the sticking sheet with the peeling detection function is stuck to an article or the like, the peeling part is picked and stuck as a gripping margin. Therefore, it becomes easy to stick the sticking sheet with a peel detection function to an article or the like, and the hand and the like are not soiled by the peel display function unit.

  Embodiments of the present invention will be described below with reference to the drawings.

(First embodiment)
FIG. 1 is a diagram showing a first embodiment of an adhesive sheet with a peeling detection function of the present invention, where (a) is a plan view and (b) is a cross-sectional view taken along line AA ′ shown in (a). (C) is a figure which shows the detailed structure of the B section shown to (b), (d) is a figure which shows the state which folded the wrapping film 1 shown to (b).

  In this embodiment, as shown in FIG. 1, a peeling part 30 and a peeling display function part 20 are formed on a part of one surface of a transparent film base material 10 which is a sheet base material made of an easily cut material such as PP (polypropylene). And are provided. The peeling part 30 is formed by applying a stripping agent in a strip shape along each of both ends of one surface of the film substrate 10. The peeling display function part 20 is formed in a strip shape along the peeling part 30 on the surface of the film substrate 10 on which the peeling part 30 is formed. Moreover, the perforation 11 used as a folding part is formed in the area | region adjacent to the peeling display function part 20 of the film base material 10 so that the peeling part 30 and the peeling display function part 20 may be followed. ing. Furthermore, on the surface of the film substrate 10 on which the peeling part 30 and the peeling display function part 20 are formed, PET (in the area opposite to the peeling part 30 of the peeling display function part 20 along the peeling display function part 20) A white tear tape 12 made of a material that is difficult to cut, such as polyethylene terephthalate, is attached, and an H-shaped cut 13 is formed in a part of the region of the film base 10 where the tear tape 12 is attached. ing.

  As shown in FIG. 1C, the peeling display function unit 20 is formed by laminating an anchor agent 21 made of medium or the like on a film base material 10, and a release agent 22 is pattern coated thereon. In the case shown in FIG. 1, the release agent 22 is pattern-coated on the letters “OPEN”. A colored layer 23 is formed by printing ink on the anchor agent 21 on which the release agent 22 is applied with a pattern, and an adhesive 24 such as hot melt is applied on the colored layer 23. In addition, the adhesive force between the release agent 22 and the colored layer 23 is stronger than the adhesive force between the adhesive 24 and the release portion 30.

  As shown in FIG. 1D, the wrapping film 1 configured in this way is such that the surface on which the surface on which the peeling portion 30 and the peeling display function portion 20 of the film substrate 10 are formed is formed. Then, the perforation 11 is folded as a folding part, and the peeling part 30 and the peeling display function part 20 are adhered and stored. That is, the peeling part 30 and the peeling display function part 20 are formed in regions facing each other when the film substrate 10 is folded at the perforation 11. Since the adhesive 24 is applied to the outermost surface of the peeling display function unit 20 as described above, the area where the peeling display function unit 20 faces the peeling display function unit 20 when the film substrate 10 is folded. However, since the area is the peeling part 30, the peeling display function part 20 and the peeling part 30 are stuck so as to be peelable.

  Below, the usage method of the wrapping film 1 comprised as mentioned above is demonstrated.

  FIG. 2 is a view for explaining a method of using the wrapping film 1 shown in FIG.

  As described above, the wrapping film 1 shown in FIG. 1 folds the perforation 11 so that the surface on which the peeling portion 30 and the peeling display function portion 20 of the film base material 10 are formed is inside. The peeling part 30 and the peeling display function part 20 are attached to each other and stored (FIG. 2A).

  When the wrapping film 1 stored in this way is used, first, the peeling part 30 and the peeling display function part 20 attached to each other are peeled off, and the film substrate 10 is opened (FIG. 2B). The peeling part 30 and the peeling display function part 20 are attached to each other by the adhesive 24 applied to the outermost surface of the peeling display function part 20, but they can be peeled by the peeling agent constituting the peeling part 30. Therefore, the peeling part 30 and the peeling display function part 20 which were mutually affixed can be peeled. Further, in the release display function unit 20, there is a portion where the colored layer 23 is formed on the release agent 22 coated on the anchor agent 21, but the adhesive force between the release agent 22 and the colored layer 23 is As described above, since it is stronger than the adhesive force between the adhesive 24 and the peeling portion 30, when the peeling portion 30 and the peeling display function portion 20 are peeled off, the peeling agent 22 and the colored layer 23 are There will be no peeling.

  Then, the wrapping film 1 is applied so as to cover the opening surface of the plastic container 2 having an opening surface into which foodstuffs or the like are put, and the peeling display function unit 20 is coated on the outermost surface of the peeling display function unit 20 in that state. The adhesive 24 is attached to the side surface of the plastic container 2 (FIG. 2C). Thereby, the opening part of the plastic container 2 in which foodstuff etc. were put is covered with the wrapping film 1, and it is avoided that foodstuff etc. spill out from the plastic container 2. FIG. At this time, since the peeling portion 30 is provided at the end portion of the wrapping film 1, when the wrapping film 1 is stuck to the plastic container 2, the peeling portion 30 can be picked and stuck as a handle. As a result, the wrapping film 1 can be easily attached to the plastic container 2 and the hands and the like are not soiled by the adhesive 24 applied to the outermost surface of the peeling display function part 20 of the wrapping film 1.

  Then, when taking out the foodstuffs etc. which were put into the plastic container 2, the film base material 10 of the wrapping film 1 is fractured | ruptured by lifting the tear tape 12 from the cut 13 (FIG.2 (d)). As described above, since the film substrate 10 is made of an easily cut material such as PP (polypropylene) and the tear tape 12 is made of a material that is difficult to cut such as PET (polyethylene terephthalate), the tear tape 12 is By lifting, the region where the tear tape 12 of the film substrate 10 is adhered can be broken.

  And all the area | regions where the tear tape 12 of the film base material 10 was stuck are fractured | ruptured, and the foodstuff etc. which were put into the plastic container 2 will be taken out (FIG.2 (e)). Thus, when taking out the foodstuff etc. which were put into the plastic container 2, instead of peeling the peeling display function part 20 of the wrapping film 1 stuck on the side surface of the plastic container 2 from the plastic container 2, Since foodstuffs etc. will be taken out by fracture | rupturing the area | region which is not stuck to the plastic container 2 of the wrapping film 1, when taking out the foodstuffs etc. which were put into the plastic container 2, foodstuff etc. will be taken out. It is possible to avoid damage such as crushing by hitting.

  Below, the effect | action by the peeling display function part 20 of the wrapping film 1 shown in FIG. 1 is demonstrated.

  FIG. 3 is a diagram for explaining the operation of the peeling display function unit 20 when the wrapping film 1 shown in FIG. 1 is peeled off after being attached to the plastic container 2 shown in FIG. The figure which shows the peeling state of the wrapping film 1, (b) is a figure which shows the state of the plastic container 2 after peeling the wrapping film 1. FIG.

  When the wrapping film 1 shown in FIG. 1 is attached to the plastic container 2 shown in FIG. 2 and then peeled off, the adhesive 24 of the peeling display function unit 20 that has attached the wrapping film 1 to the plastic container 2. Are peeled off from each other at the interface between the plastic container 2 and the release agent 22 in the region where the release agent 22 is coated on the anchor agent 21 of the release display function unit 20. As shown in FIG. 3A, only the region formed on the release agent 22 of the color layer 23 and the adhesive 24 remains on the plastic container 2 side.

  As a result, when the wrapping film 1 adhered to the plastic container 2 is peeled from the plastic container 2, as shown in FIG. It is detected that the wrapping film 1 attached to the plastic container 2 is peeled from the plastic container 2.

  As described above, in this embodiment, a part of one surface of the film substrate 10 has the peeling display function part 20 that remains in the plastic container 2 when peeled after being attached to the plastic container 2, Furthermore, in the perforation 11 formed in the area | region adjacent to the peeling display function part 20 of the film base material 10, and when the film base material 10 is folded in the perforation 11, it is in the area | region which opposes the peeling display function part 20. Since the peeling display function unit 20 has a configuration that can be attached to the plastic container 2, the film substrate 10 is formed at the perforation 11. The plastic container 2 can be attached to the peeling part 30 in a detachable manner by folding, without requiring a release paper to be attached to the peeling display function part 20 in a state before use. It is possible to realize a sticking and a detectable and constitutes a release from the subsequent plastic container 2.

(Second Embodiment)
FIG. 4: is a figure which shows 2nd Embodiment of the sticking sheet with a peeling detection function of this invention, (a) is a top view, (b) is AA 'sectional drawing shown to (a). (C) is a figure which shows the state which folded the wrapping film 101 shown to (b).

  As shown in FIG. 4, the present embodiment is different from the one shown in the first embodiment in that the formation regions in the film base 10 of the peeling display function unit 20 and the peeling unit 30 are interchanged with each other, As a means for breaking the film substrate 10, a difference is that a perforation 112 is formed instead of the tear tape 12 shown in FIG. 1. Further, a notch 113 that is recessed inside the film base material 10 is formed in an area that becomes an end portion of the perforation 112 of the film base material 10, and other areas are formed in a part of the perforation 112. On the other hand, a trigger portion 112a having a longer cut portion is formed.

  Below, the usage method of the wrapping film 101 comprised as mentioned above is demonstrated.

  FIG. 5 is a view for explaining a method of using the wrapping film 101 shown in FIG.

  As shown in FIG. 4C, the wrapping film 101 shown in FIG. 4 is such that the surface on which the peeling portion 30 and the peeling display function portion 20 of the film base material 10 are formed is the inside. Then, the perforation 11 is folded as a folding part, and the peeling part 30 and the peeling display function part 20 are adhered to each other and stored (FIG. 5A).

  When the wrapping film 1 stored in this way is used, first, the peeling part 30 and the peeling display function part 20 attached to each other are peeled, and the film substrate 10 is opened (FIG. 5B).

  Then, the wrapping film 101 is applied so as to cover the opening surface of the plastic container 2 having an opening surface into which foodstuffs or the like are put, and in this state, the peeling display function unit 20 is applied to the outermost surface of the peeling display function unit 20. The adhesive 24 is attached to the side surface of the plastic container 2 (FIG. 5C). Thereby, the opening part of the plastic container 2 in which foodstuff etc. were put is covered with the wrapping film 1, and it is avoided that foodstuff etc. spill out from the plastic container 2. FIG. In this state, a notch 113 that is recessed inside the film base material 10 is formed in a region that is an end portion of the perforation 112 of the film base material 10, so that the end portion of the perforation 112 is the film base material 10. It is not exposed on the end side, and thereby it is possible to avoid the end portion of the perforation 112 from unintentionally contacting an article or the like and breaking the perforation 112.

  Then, when taking out the foodstuff etc. which were put into the plastic container 2, a finger | toe is inserted in the trigger part 112a among the perforations 112 formed in the film base material 10 of the wrapping film 1, and the perforations 112 are moved in one direction. (FIG. 5 (d)).

  And all the perforations 112 of the film base material 10 are fractured, and the foodstuffs and the like put in the plastic container 2 are taken out (FIG. 5 (e)).

  Also in the wrapping film 101 described above, as in the case of the first embodiment, when the film is peeled after being attached to the plastic container 2, a part of the peeling display function part 20 remains on the plastic container 2 side, As a result, the letter “OPEN”, which is the coating pattern of the release agent 22, is displayed on the plastic container 2 by the color of the colored layer 23, and the wrapping film 1 adhered to the plastic container 2 is peeled off from the plastic container 2. Can be detected.

  In the two embodiments described above, the perforation 11 is formed in the film base 10 as a folding part for folding the film base 10, but not the perforation 11 but a fold line by muscle push processing. May be formed.

  Moreover, in the peeling display function part 20, if what was colored as the adhesive 24 is used, it is not necessary to provide the colored layer 23. FIG.

  In addition, the wrapping films 1 and 101 shown in the two embodiments described above are in a single piece, but are continuous in a direction in which the peeling display function part 20 and the peeling part 30 extend in a strip shape. There may be.

It is a figure which shows 1st Embodiment of the sticking sheet with a peeling detection function of this invention, (a) is a top view, (b) is AA 'sectional drawing shown to (a), (c). FIG. 2 is a diagram showing a detailed configuration of a B portion shown in FIG. 2B, and FIG. 4D is a diagram showing a state in which the wrapping film shown in FIG. It is a figure for demonstrating the usage method of the wrapping film shown in FIG. It is a figure for demonstrating the effect | action by the peeling display function part at the time of peeling, after sticking the wrapping film shown in FIG. 1 on the plastic container shown in FIG. 2, (a) shows the peeling state of a wrapping film. FIG. 4B is a diagram showing a state of the plastic container after the wrapping film is peeled off. It is a figure which shows 2nd Embodiment of the sticking sheet with a peeling detection function of this invention, (a) is a top view, (b) is AA 'sectional drawing shown to (a), (c). FIG. 4 is a diagram showing a state in which the wrapping film shown in FIG. It is a figure for demonstrating the usage method of the wrapping film shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,101 Wrapping film 2 Plastic container 10 Film base material 11,112 Perforation 12 Tear tape 13,113 Notch 20 Peeling display function part 21 Anchor agent 22 Peeling agent 23 Colored layer 24 Adhesive 30 Peeling part 112a Trigger part

Claims (2)

Adhering to the adherend by having a peeling display function part that remains on the adherend when part of one surface of the sheet substrate is peeled off after being attached to the adherend. In the adhesive sheet with a peeling detection function that makes it possible to detect the subsequent peeling,
A folded portion formed in a region adjacent to the peeling display function portion of the sheet substrate;
An adhesive sheet with a peeling detection function, comprising: a peeling part formed of a peeling agent in a region facing the peeling display function part when the sheet base material is folded at the folding part. In the sticking sheet with a peeling detection function according to claim 1,
The said peeling part is an adhesive sheet with a peeling detection function provided in the edge part of the said sheet | seat base material.

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