JP7571546B2 - Object to be detected with a fraud detection tag attached - Google Patents

Description

The present invention relates to a tamper detection tag that is attached to a detection target and detects tampering with the detection target.

Conventionally, cable ties are used to prevent unauthorized opening of cases, etc. Cable ties are configured, for example, by connecting a band portion with a series of small teeth formed thereon and a head portion with a hole. Then, by inserting the band portion through the hole provided in the head portion, a locking portion provided inside the hole engages with the teeth of the band portion, and a locked state is established in which the band portion cannot be removed in the direction opposite to the insertion direction. Once in the locked state, the lock cannot be released unless the band portion or head portion is cut (for example, see Patent Document 1).

By using such a cable tie, the band portion of the cable tie is inserted through the holes provided in the body and lid of the case, and then the band portion is inserted through the hole in the cable tie, thereby preventing unauthorized opening of the case.

JP 2013-252169 A

Although the cable ties described above are configured to be bendable, they require a certain degree of stiffness in order to maintain the locked state with the teeth formed on the band portion. For this reason, the band portion is generally often made of plastic having a certain thickness, and the band portion also becomes thicker and stiffer depending on the height of the teeth. For this reason, when objects to be detected with cable ties attached are stacked for storage to prevent unauthorized opening, the cable ties are bulky and get in the way, making it difficult to stack the objects neatly, and making it difficult to handle the objects when storing them.

In addition, depending on the shape of the teeth of the band and the locking part of the head, if the band is pulled with a strong force in the opposite direction to the insertion direction, it may be possible to remove the band from the head without cutting it. In that case, the object to be detected with the cable tie attached may be illegally opened, and the cable tie removed from the object to be detected may then be reattached to the object, leaving no trace of illegal opening.

The present invention was made in consideration of the problems inherent in the conventional technology described above, and aims to provide a tamper detection tag that, when attached to a detection object, can detect tampering with the detection object without making the detection object difficult to handle.

In order to achieve the above object, the present invention provides
A tamper detection tag attached to a detection target and detecting tampering with the detection target,
a sheet base material including a fraud detection section and a roll-up section that rolls up a part of the detected object when the fraud detection tag is attached to the detected object and is partly attached to the fraud detection section;
a release layer laminated on one surface of the fraud detection unit in the shape of a predetermined latent image pattern;
an adhesive layer laminated on the entire surface of the peeling layer of the fraud detection unit so as to cover the peeling layer;
The rolling portion is
a first region that is connected to the fraud detection unit and has a width in a short side direction that intersects with a direction of connection to the fraud detection unit and is narrower than the width in the short side direction of the fraud detection unit;
The second region is connected to the first region on the opposite side to the fraud detection section, and has a width in the short side direction that is wider than the width of the first region in the short side direction and narrower than the width of the fraud detection section in the short side direction.

In the present invention configured as described above, the wrapping portion wraps around a part of the object to be detected, and a part of the wrapping portion is attached to the tamper detection portion, thereby attaching the tag to the object to be detected. After that, in order to open the object to be detected, the part of the wrapping portion attached to the tamper detection portion must be peeled off from the tamper detection portion. When a part of the wrapping portion is peeled off from the tamper detection portion, the peeling layer laminated on one side of the tamper detection portion peels off from the adhesive layer, and a latent image pattern due to the peeling layer appears, thereby detecting that the object to be detected has been opened. In this case, the tamper detection portion and the wrapping portion are made of a sheet base material, and the configuration for detecting tampering of the object to be detected is that a latent image pattern appears due to the peeling layer when a part of the wrapping portion is peeled off from the tamper detection portion. Therefore, when attached to the object to be detected, the tamper detection tag does not become bulky and gets in the way, and tampering of the object to be detected without making it difficult to handle the object to be detected. Furthermore, the wrapping portion has a first region that is connected to the fraud detection portion and has a width in a short side direction that intersects with the direction of connection to the fraud detection portion that is narrower than the width of the fraud detection portion in the short side direction, and a second region that is connected to the opposite side of the fraud detection portion of the first region and has a width in a short side direction that is wider than the width of the first region and narrower than the width of the fraud detection portion in the short side direction. This allows a part of the wrapping portion to be wrapped by the fraud detection portion when it is attached to the fraud detection portion, and when the second region of the wrapping portion is attached to the fraud detection portion, a latent image pattern appears over a wide area of the second region, making it easier to detect that the detected object has been opened.

Furthermore, if the second region is configured to have a folded portion that extends in the direction in which the fraud detection portion and the rolling portion are connected, when the fraud detection tag is attached by inserting the rolling portion into the hole in the detectable object, even if the width of the second region of the rolling portion in the short direction is widened to make it easier to detect that the detectable object has been opened as described above, folding the second region at the folded portion avoids the difficulty of inserting the rolling portion into the hole in the detectable object.

In addition, a detectable object having a fraud detection tag as described above attached thereto may have two members, at least a portion of which separates when the detectable object is opened, and each of the two members is provided at the separated portion and has a hole through which the roll-up portion is inserted, the roll-up portion is inserted into the two holes, and at least a portion of the second region from the portion inserted into the hole to the end opposite the fraud detection portion is wrapped in the fraud detection portion.

According to the present invention, a tamper detection section for detecting tampering with a detectable object is connected to a wrapping section that wraps around a part of the detectable object when the tamper detection tag is attached to the detectable object, and a part of the wrapping section is affixed to the tamper detection section. The configuration for detecting tampering with the detectable object is such that a latent image pattern is revealed by the peel-off layer when a part of the wrapping section is peeled off from the tamper detection section in order to open the detectable object. Therefore, when attached to the detectable object, the tamper detection tag does not become bulky and get in the way, and tampering with the detectable object can be detected without making the detectable object difficult to handle. Furthermore, the wrapping portion has a first region that is connected to the fraud detection portion and has a width in a short side direction that intersects with the direction of connection to the fraud detection portion that is narrower than the width of the fraud detection portion in the short side direction, and a second region that is connected to the opposite side of the fraud detection portion of the first region and has a width in a short side direction that is wider than the width of the first region and narrower than the width of the fraud detection portion in the short side direction. This allows a part of the wrapping portion to be wrapped by the fraud detection portion when it is attached to the fraud detection portion, and when the second region of the wrapping portion is attached to the fraud detection portion, a latent image pattern appears over a wide area of the second region, making it easier to detect that the detected object has been opened.

In addition, when the second region has a folded portion extending in the direction in which the fraud detection section and the rolling-up section are connected, if the fraud detection tag is attached by inserting the rolling-up section into the hole in the detectable object, even if the width of the second region of the rolling-up section in the short direction is widened to make it easier to detect that the detectable object has been opened as described above, folding the second region at the folding portion can avoid making it difficult to insert the rolling-up section into the hole in the detectable object.

FIG. 1 shows one embodiment of the fraud detection tag of the present invention, where (a) is a surface view, (b) is a cross-sectional view taken along the line A-A' shown in (a), and (c) is a diagram showing the shape of the peel-off layer on the back surface of the film substrate. 2 is a perspective view showing an example of a detection target for which tampering is detected by the tamper detection tag shown in FIG. 1 ; 3 is a diagram for explaining a method of inserting the wrapping portion of the tamper detection tag shown in FIG. 1 into a hole portion of the container shown in FIG. 2 . FIG. 3A and 3B are diagrams showing an example of the state in which the fraud detection tag shown in FIG. 1 is attached to the container shown in FIG. 2, in which (a) is an external oblique view, and (b) is a diagram showing the area of the A-A' end face shown in (a) near the area where the fraud detection tag is attached. 5 is a cross-sectional view for explaining a state in which the tamper detection portion and the wrapping portion are peeled off after the tamper detection tag shown in FIG. 1 is attached to a container as shown in FIG. 4 . FIG. 2 is a front view showing the state in which the fraud detection portion of the fraud detection tag shown in FIG. 1 has been peeled off from the wrapping portion.

Below, an embodiment of the present invention will be described with reference to the drawings.

Figure 1 shows one embodiment of the fraud detection tag of the present invention, where (a) is a surface view, (b) is a cross-sectional view taken along the line A-A' shown in (a), and (c) is a diagram showing the shape of the release layer 20 on the back surface of the film substrate 10.

As shown in FIG. 1, this embodiment is a tamper detection tag 1 in which a release layer 20 is laminated on one side of a film substrate 10, an adhesive layer 30 is laminated covering the release layer 20, and a film substrate 40 and a release paper 50 are laminated and attached to the side of the adhesive layer 30 opposite the film substrate 10.

The film substrate 10 is a sheet substrate in the present invention, and is made of a transparent or translucent film, and the color of the other side can be seen from one side. The film substrate 10 has an approximately T-shaped shape in which the fraud detection section 1a and the roll-up section 1b are connected. The roll-up section 1b is composed of a narrow section 1c, which is a first region connected to the fraud detection section 1a, and a wide section 1d, which is a second region connected to the opposite side of the narrow section 1c from the fraud detection section 1a. Here, the widths W2 and W3 of the narrow section 1c and the wide section 1d in the short side direction, which are the direction intersecting the connection direction between the fraud detection section 1a and the roll-up section 1b, are both narrower than the width W1 of the fraud detection section 1a in the short side direction intersecting the connection direction between the fraud detection section 1a and the roll-up section 1b. In addition, the width W3 of the wide portion 1d in the short direction intersecting the connection direction between the fraud detection portion 1a and the rolled portion 1b is wider than the width W2 of the narrow portion 1c in the short direction intersecting the connection direction between the fraud detection portion 1a and the rolled portion 1b, so that the rolled portion 1b has a hook portion 1e at the end opposite the connection side between the narrow portion 1c and the fraud detection portion 1a, where one end edge of the rolled portion 1b is bent at a substantially right angle due to the wider width. The width W3 of the wide portion 1d can be, for example, twice the width W2 of the narrow portion 1c. In the fraud detection portion 1a, a perforation 11 is formed on the extension line of the end edge of the rolled portion 1b that extends from the narrow portion 1c to the wide portion 1d.

As shown in Figures 1(b) and 1(c), one side of the film substrate 10 is partially laminated over its entire surface with a release layer 20, which is made of a release agent such as transparent silicone, applied in the shape of a latent image pattern that appears when the fraud detection tag 1 is peeled off after being attached to an adherend.

The adhesive layer 30 is laminated on the entire surface of the film substrate 10 on which the release layer 20 is laminated, by applying an adhesive to cover the release layer 20. The adhesive layer 30 is made of any color, such as blue, red, or black, and has elasticity.

On the surface of the adhesive layer 30 opposite the film substrate 10, a film substrate 40 is laminated and attached in an area facing the rolled-up portion 1b of the film substrate 10. In an area facing the wide portion 1d of the film substrate 10, a perforation 41 is formed as a fold that extends in the direction in which the fraud detection portion 1a and the rolled-up portion 1b are connected. Note that instead of the perforation 41, a half slit may be provided as the fold.

A release paper 50 is removably attached to the area of the film substrate 10 facing the fraud detection section 1a. As shown in FIG. 1(b), the size of the release paper 50 may be such that a part of it overlaps with a part of the film substrate 40, making it easier to peel off the release paper 50 when using the fraud detection tag 1; however, the size of the release paper 50 need only cover at least the area of the adhesive layer 30 that is not covered by the film substrate 40. Alternatively, the adhesive layer 30 may be coated with varnish instead of the film substrate 40, thereby eliminating the adhesive strength of the adhesive layer 30.

The fraud detection tag 1 configured in this manner has a film substrate 10 made of a transparent or translucent film, so that the color of the adhesive layer 30 is visible from the surface on the film substrate 10 side. As a result, when the fraud detection tag 1 is fraudulently removed from the object to be detected, the latent image pattern created by the peel-off layer 20, which will be described later, becomes visible.

The following describes how to use the fraud detection tag 1 configured as described above.

First, we will explain how to attach the tamper detection tag 1 to the object to be detected for tampering.

Figure 2 is an external perspective view showing an example of a detection target for which tampering is detected by the tamper detection tag 1 shown in Figure 1.

As shown in FIG. 2, an example of an object to be detected for unauthorized opening by the fraud detection tag 1 shown in FIG. 1 is a container 2, which is made up of a container 4 having an opening in which items and the like are stored, and a lid 3 attached to the opening of the container 4 so as to be freely opened and closed, as shown in FIG. 2. The container 2 shown in FIG. 2 has holes 3a and 4a on the lid 3 and the container 4, respectively, in areas that face each other when the lid 3 is closed and are separated when the lid 3 is open, for attaching the fraud detection tag 1 shown in FIG. 1.

Figure 3 is a diagram for explaining how to insert the wrapping portion 1b of the tamper detection tag 1 shown in Figure 1 into the holes 3a and 4a of the container 2 shown in Figure 2.

When using the tamper detection tag 1 shown in FIG. 1 to detect tampering in the container 2 shown in FIG. 2, the rolled-up portion 1b of the tamper detection tag 1 is inserted through the holes 3a and 4a with the lid 3 closed. At that time, as shown in FIG. 3, the wide portion 1d is folded around the perforation 41 in a direction intersecting the connection direction of the tamper detection portion 1a and the rolled-up portion 1b. This makes it possible to avoid the difficulty of inserting the rolled-up portion 1b through the holes 3a and 4a even if the width of the wide portion 1d of the rolled-up portion 1b is increased.

Figure 4 shows an example of the state in which the tamper detection tag 1 shown in Figure 1 is attached to the container 2 shown in Figure 2, where (a) is an external perspective view and (b) is a view showing the area of the A-A' end face shown in (a) near the area where the tamper detection tag 1 is attached.

When the tampering detection tag 1 shown in FIG. 1 is used to detect the tampering of the container 2 shown in FIG. 2, the wide portion 1d is folded around the perforation 41 as shown in FIG. 3, and the wrapping portion 1b of the tampering detection tag 1 is inserted through the holes 3a and 4a. Then, after the wide portion 1 is unfolded, the tampering detection tag 1 is made into a ring shape, and a portion of the area from the portion of the wrapping portion 1b inserted through the holes 3a and 4a to the end opposite the tampering detection portion 1a is attached to the tampering detection portion 1a by the adhesive layer 30. In this way, the wrapping portion 1b wraps up a portion of the lid 3 and the container 4 of the container 2, and a portion of the wrapping portion 1b is attached to the tampering detection tag 1.

In this case, as described above, the widths W2 and W3 of the short side of the wrapping portion 1b, which is the connecting direction between the fraud detection portion 1a and the wrapping portion 1b, are narrower than the width W1 of the fraud detection portion 1a, so that the area of the wrapping portion 1b affixed to the fraud detection portion 1a can be wrapped by the fraud detection portion 1a by folding the fraud detection portion 1a in the short side direction of the fraud detection tag 1, as shown in FIG. 4. In this case, the fraud detection portion 1a has perforations 11 formed on the extension line of the end edge of the wrapping portion 1b that extends from the narrow portion 1c to the wide portion 1d, so that the fraud detection portion 1a can be easily folded in the short side direction of the fraud detection tag 1. In addition, by wrapping a part of the area of the wrapping portion 1b, the fraud detection portions 1a are also affixed to each other in parts.

In this way, the wrapping portion 1b of the tamper detection tag 1 shown in Figure 1 is inserted into the lid 3 of the container 2 and the holes 3a, 4a of the container 4, and is attached to the tamper detection portion 1a while being wrapped in the tamper detection portion 1a. Thereafter, the container 2 cannot be opened unless the tamper detection tag 1 is broken or the tamper detection portion 1a is opened and the tamper detection portion 1a is peeled off from the wrapping portion 1b. In addition, the width W3 of the wide portion 1d of the roll-up portion 1b inserted into the holes 3a and 4a of the container 4 and the lid 3 of the container 2 is wider than the width W2 of the narrow portion 1c, so that at the end opposite the connection side of the narrow portion 1c to the fraud detection portion 1a, there is a hook portion 1e where one end side of the roll-up portion 1b is bent at a substantially right angle. Therefore, when the fraud detection tag 1 is attached to the container 2 in the above manner, if an attempt is made to remove the fraud detection tag 1 from the holes 3a and 4a, this hook portion 1e will catch on the corners of the holes 3a and 4a, making it difficult to fraudulently remove the fraud detection tag 1 from the holes 3a and 4a.

As described above, the tamper detection tag 1 is configured such that the peeling layer 20 is laminated on one side of the film substrate 10, the adhesive layer 30 is laminated covering the peeling layer 20, and the film substrate 40 is further laminated and affixed to a portion of the surface of the adhesive layer 30 opposite the film substrate 10. This prevents the tamper detection tag 1 from becoming bulky and getting in the way compared to a cable tie when attached to the container 2 to detect tampering as described above, making the container 2 difficult to handle. Also, the size of the loop formed by the tamper detection tag 1 can be adjusted by changing the length and area of the wrapping portion 1b that is affixed to the tamper detection portion 1a.

Next, we will explain the action that occurs when the tamper detection portion 1a and the wrapping portion 1b are peeled off in order to tamper-proof open the container 2 to which the tamper detection tag 1 is attached as described above.

Figure 5 is a cross-sectional view illustrating the state in which the tamper detection portion 1a and the wrapping portion 1b are peeled off after the tamper detection tag 1 shown in Figure 1 is attached to the container 2 as shown in Figure 4.

When the fraud detection part 1a and the wrapping part 1b of the fraud detection tag 1 are peeled off from the attached state as shown in FIG. 5(a), in the area of the fraud detection part 1a where the peeling layer 20 is not laminated, the adhesive layer 30 peels off from the wrapping part 1b together with the film substrate 10 as shown in FIG. 5(b), and in the area of the fraud detection part 1a where the peeling layer 20 is laminated, the adhesive layer 30 peels off from the peeling layer 20 because the adhesive layer 30 is attached to the wrapping part 1b with a stronger adhesion force than the adhesion force with the peeling layer 20. Then, the part peeled off from the peeling layer 20 peels off from the wrapping part 1b together with the film substrate 10 because the adhesive layer 30 has elasticity, breaks in a direction perpendicular to the lamination direction with the peeling layer 20, and is pulled by the part that remains laminated on the film substrate 10 of the fraud detection part 1a, and almost does not exist in the area facing the peeling layer 20.

When the fraud detection portion 1a of the fraud detection tag 1 is completely peeled off from the wrapping portion 1b, as shown in FIG. 5(c), the adhesive layer 30 is present almost only in the area where the peeling layer 20 is not laminated.

Figure 6 is a surface view showing the state in which the fraud detection section 1a of the fraud detection tag 1 shown in Figure 1 has been peeled off from the wrapping section 1b.

When the fraud detection tag 1 shown in FIG. 1 is peeled off from the wrapping portion 1b as described above, when the fraud detection tag 1 is viewed from the film substrate 10 side, the color of the adhesive layer 30 is visible through the film substrate 10 in the area of the fraud detection tag 1a that does not face the peeling layer 20 because the adhesive layer 30 is present, while the color of the adhesive layer 30 is not visible in the area of the fraud detection tag 1a that faces the peeling layer 20 because the adhesive layer 30 is no longer present. As a result, as shown in FIG. 6, a latent image pattern 21 due to the peeling layer 20 is generated. At that time, the wrapping portion 1b is not only connected to the narrow portion 1c connected to the fraud detection tag 1a, but also to the wide portion 1 that is wider than the narrow portion 1c connected to the opposite side of the fraud detection tag 1a from the narrow portion 1c, so that the wide portion 1d is wrapped around the fraud detection tag 1a and attached to it, and the latent image pattern 21 is generated in a wide area of the wide portion 1d, which makes it easier to detect that the container 2 has been opened.

On the other hand, in the wrapping portion 1b of the fraud detection tag 1, the film substrate 40 is laminated over the entire surface on which the adhesive layer 30 is laminated, so that the surface on which the peeling layer 20 is laminated is not adhered to the fraud detection portion 1a, and as a result, the latent image pattern 21 due to the peeling layer 20 as described above is not manifested.

Even if the entire or part of the film substrate 10 is printed, the color of the printing will be visible in the area facing the peel-off layer 20 of the fraud detection unit 1a, while in the area not facing the peel-off layer 20 of the fraud detection unit 1a, a color corresponding to the printing color of the film substrate 10 and the color of the adhesive layer 30 will be visible, and the latent image pattern 21 caused by the peel-off layer 20 will appear. For example, if the film substrate 10 is printed in red and the adhesive layer 30 is green, a red latent image pattern 21 will appear on a black background caused by the mixture of red and green.

Even if the wrapping portion 1b of the fraud detection tag 1 on which the latent image pattern 21 is thus revealed is then inserted into the holes 3a and 4a and the fraud detection portion 1a is reattached to the wrapping portion 1b, the adhesive layer 30 is no longer present in the area opposite the peel-off layer 20, so the latent image pattern 21 remains revealed, and the fraud detection tag 1 and wrapping portion 1b are peeled off, making it possible to recognize that the container 2 has been fraudulently opened.

In this manner, in the present embodiment of the fraud detection tag 1, when the fraud detection section 1a is wrapped around the wrapping section 1b and attached to the wrapping section 1b, if the fraud detection section 1a is fraudulently peeled off from the wrapping section 1b, the latent image pattern 21 created by the peel-off layer 20 will be revealed, making it possible to detect the fact that the fraud detection section 1a has been fraudulently removed from the container 2 in order to open the container 2.

In this embodiment, the adhesive layer 30 has elasticity, so that when the fraud detection section 1a of the fraud detection tag 1 is peeled off from the wrapping section 1b, the adhesive layer 30 peels off from the wrapping section 1b even in the area laminated on the peeling layer 20 and does not remain in the wrapping section 1b. However, the adhesive layer may not have elasticity, so that when the fraud detection section of the fraud detection tag is peeled off from the wrapping section, the area of the adhesive layer laminated on the peeling layer may remain in the wrapping section.

In addition, in this embodiment, the film substrate 10 is made of a transparent or translucent film, so that the color of the adhesive layer 30 is visible when viewed from the side opposite to the side on which the peeling layer 20 and the adhesive layer 30 are laminated. However, only the area of the film substrate 10 facing the peeling layer 20 may be transparent or translucent, and the other areas may be colored the same color as the adhesive layer 30.

In this embodiment, the adhesive layer 30 is described as being of any color such as blue, red, or black, but it is also possible to use a transparent adhesive layer 30. In that case, it is possible to cover the entire surface of the film substrate 10 on which the peeling layer 20 is laminated, laminate a colored cushion layer, and laminate the adhesive layer 30 on the cushion layer. In such a configuration, when the fraud detection unit 1a is peeled off from the wrapping portion 1b after being attached to the container 2 as shown in FIG. 4, the cushion layer peels off from the peeling layer 20, and when viewed from the side opposite to the side on which the peeling layer 20 and the adhesive layer 30 are laminated, the color of the cushion layer is visible through the film substrate 10 in the area not facing the peeling layer 20, while in the area facing the peeling layer 20, a gap is generated between the cushion layer and the peeling layer 20, making it difficult to view the color of the cushion layer through the film substrate 10, and therefore a latent image pattern due to the peeling layer 20 is manifested.

In addition, in this embodiment, holes 3a, 4a are provided in the lid 3 and container 4 of the container 2, respectively, for attaching the tamper detection tag 1 to the container 2, and the wrapping part 1b is inserted into these holes 3a, 4a. However, if the lid 3 or container 4 is made of a mesh or other material, through which the wrapping part 1b can be inserted and which has a configuration capable of wrapping a part of the object to be detected, there is no need to provide a hole.

In addition, in this embodiment, the tamper detection tag 1 shown in FIG. 1 is attached to the container 2 shown in FIG. 2 to detect tampering of the container 2, but the tamper detection tag 1 shown in FIG. 1 may be attached to a bag that is opened and closed by a zipper with two pull tabs to detect tampering of the bag. In that case, it is possible to insert the roll-up part 1b through holes provided in each of the two pull tabs when the bag is closed, and attach a portion of the area from the part of the roll-up part 1b that is inserted through the hole to the end on the opposite side to the tamper detection part 1a to the tamper detection part 1a with the adhesive layer 30.

REFERENCE SIGNS LIST 1 tamper detection tag 1a tamper detection section 1b roll-up section 1c narrow section 1d wide section 1e hook section 2 container 3 lid 3a, 4a hole section 4 container 10, 40 film substrate 11, 41 perforation 20 release layer 21 latent image pattern 30 adhesive layer 50 release paper

Claims (2)

A tamper detection tag attached to a detection target and detecting tampering with the detection target,
a sheet base material including a fraud detection section and a roll-up section that rolls up a part of the detected object when the fraud detection tag is attached to the detected object and is partly attached to the fraud detection section;
a release layer laminated on one surface of the fraud detection unit in the shape of a predetermined latent image pattern;
an adhesive layer laminated on the entire surface of the peeling layer of the fraud detection unit so as to cover the peeling layer;
The rolling portion is
a first region that is connected to the fraud detection unit and has a width in a short side direction that intersects with a direction of connection to the fraud detection unit and is narrower than the width in the short side direction of the fraud detection unit;
a second region connected to the first region on an opposite side to the fraud detection unit, the second region having a width in the short side direction that is wider than the width of the first region in the short side direction and narrower than the width of the fraud detection unit in the short side direction,
The detection object has two members at least a part of which is separated when the detection object is opened,
Each of the two members has a hole portion provided in the spaced apart portion and through which the roll-up portion is inserted,
The wrap-around portion is inserted through the two holes, and at least a portion of the second region from the portion inserted through the holes to the end opposite the fraud detection portion is wrapped around the fraud detection portion . The detection object according to claim 1 ,
The second region has a folded portion extending toward the connecting direction of the fraud detection portion and the rolling-up portion.

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