JP2017227833A - Seal member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a seal member which is prevented from being curled up and naturally released even if affixed to a bent portion of a packaging body, and preferably improves forgery prevention effects.SOLUTION: The present invention relates to a seal member having one end and the other end facing the one end and comprising at least two lines of slit patterns extending between both the ends. In the seal member, the slit pattern line includes: a first slit pattern having a non-slit part starting from the one end, a slit part, and a non-slit part reaching the other end successively on a straight line; and a second slit pattern having a slit part starting from the one end, a non-slit part, and a slit part reaching the other end successively on a straight line. The first slit pattern and the second slit pattern in the slit pattern line exist substantially in parallel while interposing an interval of 4 mm or less therebetween.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a seal member.

  In some cases, a tamper-evident seal or sealing paper indicating that the product is unopened is attached to the package of the product. The tamper-evident seal is affixed across the open / close location of the package, typically the top and side of the box. It is confirmed that it does not have.

  However, fraudulent acts that conceal the authenticity of the contents are performed by means of peeling and re-applying the tamper-evident seal so as not to break, or by applying a counterfeit seal after removing the genuine tamper-evident seal. May be.

  In order to prevent such fraud, a tamper-evident seal that is difficult to counterfeit may be used. For example, Patent Document 1 discloses a base material layer, a retroreflective layer laminated on one surface of the base material layer, an adhesive layer laminated on the other surface of the base material layer, and the retroreflective layer. A transparent sealing base material provided on the adhesive layer, the retroreflective layer includes a photorefractive layer, and a holding layer that holds the photorefractive layer in a state in which the surface portion is exposed. And a reflection film provided on the opposite side of the surface portion of the photorefractive material layer, and the adhesive layer forms letters, symbols, figures or a combination thereof, and a forgery prevention seal is disclosed. .

  The technique of Patent Document 1 is an excellent technique that provides a tamper-evident seal that is highly effective in preventing counterfeiting. However, since the seal thickness obtained by this technique is relatively thick and the bending repulsion (rigidity) of the seal is high, it can be applied to a bent portion of a package, for example, a corner portion formed by two adjacent surfaces of a box. Is unsuitable. In other words, in a sticker that is bent and pasted, the high stiffness overcomes the adhesive force and jumps up and peels off naturally, so that the function of preventing unauthorized opening may not be achieved (see FIG. 11).

  There is a limit to increasing the adhesive strength of the adhesive used for the tamper-evident seal, and it is difficult to overcome the above-mentioned problem of seal bounce by increasing the adhesive force. Therefore, in order to prevent the tampering seal from jumping up, a technique for cutting the seal has been proposed.

  For example, Patent Document 2 discloses a seal label in which 3 to 10 linear perforations are provided from an arbitrary position on the periphery of the label toward the opposing periphery.

JP 2012-98568 A JP 2006-71857 A

  The technique of Patent Document 2 achieves both a reduction in rigidity by making a cut in the seal and shortening the length in the width direction of the seal material, and maintaining strength by dividing the cut into perforations. It seems to be based on the idea to aim. However, the effect of lowering the rigidity of the sealing material by the technique of Patent Document 2 is not sufficient, and it is still unsuitable for sticking to the bent portion of the package.

  The present invention has been made in view of the above circumstances. Accordingly, an object of the present invention is to provide a seal member that does not spring up and peel off spontaneously even when attached to a bent portion of a package, and preferably has a high effect of preventing forgery.

  The present invention is summarized as follows.

[1] A seal member having one end and another end opposite thereto, and having at least two continuous cut pattern rows extending between the both ends,
The notch pattern sequence is:
On the straight line, a first notch pattern having in this order a non-notch part, a notch part, and a notch part extending from the one end part to the other end part,
On a straight line, it has a second notch pattern that has a notch part that originates from the one end part, a non-notch part, and a notch part that reaches the other end part in this order,
The sealing member, wherein the first notch pattern and the second notch pattern in the notch pattern row are substantially parallel with an interval of 4 mm or less.

  [2] The length of at least one of the cut portions in the second cut pattern is 15% or more with respect to the distance between the one end portion and the other end portion, and the non-cut portion The seal member according to [1], wherein the length of is 1 mm or more.

  [3] The length of the cut portion in the first cut pattern is 30% or more with respect to the distance between the one end portion and the other end portion, and the length of the non-cut portion is 1 mm. The sealing member according to [1] or [2] as described above.

[4] The notch pattern sequence is
A triple cut pattern comprising the first cut pattern, the second cut pattern, and the first cut pattern, or the second cut pattern, the first cut pattern, and the second cut. It has a triple cut pattern consisting of patterns,
These triple cut patterns are present in the order described above in a substantially parallel manner with an interval of 4 mm or less.
The sealing member according to any one of [1] to [3].

  [5] The seal member according to any one of [1] to [4], wherein the cut pattern row is provided at two locations separated from each other.

  [6] The seal member according to any one of [1] to [5], which is made of a material having at least one resin layer.

  [7] The seal member according to any one of [1] to [6], which includes a retroreflective layer.

  ADVANTAGE OF THE INVENTION According to this invention, even if it sticks to the bending part of a package body, the sealing member which does not jump up and does not peel naturally is provided. According to a preferred aspect of the present invention, there is provided a seal member having an effect that the effect of preventing forgery is high in addition to the absence of bounce and natural peeling.

FIG. 1 is a schematic top view for explaining an aspect of cutting of a seal member in Examples 1 and 2. FIG. FIG. 2 is a schematic top view for explaining an aspect of cutting of the seal member in Comparative Examples 1 and 2. FIG. FIG. 3 is a schematic top view for explaining an aspect of cutting of the seal member in Comparative Examples 3 and 4. FIG. FIG. 4 is a schematic top view for explaining an aspect of the sealing member in Comparative Examples 5 and 6. FIG. 5 is a schematic top view for explaining an aspect of cutting of the seal member in Comparative Examples 7 and 8. FIG. FIG. 6 is a graph showing the rigidity of each seal member measured in the examples and comparative examples. FIG. 7 is a schematic top view for explaining variable notch portions in the seal members of Examples 3 to 5. FIG. FIG. 8 is a graph showing the relationship between the stiffness of the seal member and the P1 value measured in Example 3. FIG. 9 is a graph showing the relationship between the stiffness of the seal member and the P2 value measured in Example 4. FIG. 10 is a graph showing the relationship between the stiffness of the seal member and the P3 value measured in Example 5. FIG. 11 is a schematic perspective view for explaining a problem of the seal member in the prior art. FIG. 12 is a schematic cross-sectional view illustrating an example of a layer configuration of the seal member.

  The seal member of the present invention has one end portion and another end portion facing the one end portion, and has at least two continuous cut pattern rows extending between the both end portions.

  Since the seal member of the present invention has a pattern row composed of at least two predetermined cut patterns, the rigidity (bending repulsion) in the vicinity of the region where the pattern row exists is reduced. For example, the inventors of the present invention have the reason why the rigidity of the seal member of the present invention is effectively reduced, while the conventional seal member having a notch such as a perforation has an insufficient rigidity reduction effect. I guess as follows.

  The conventional seal member has been based on the idea of dividing the seal material in the width direction to reduce the effective width of the material that contributes to the expression of rigidity in order to reduce the rigidity. For example, if a perforation with a length ratio of the notch portion and the non-notch portion is 1: 1, the width of the material that contributes to the expression of the stiffness is halved. However, seal members currently used for preventing tampering, for example, seal members having retroreflective properties, are extremely stiffer than ordinary stickers, and the approach of reducing the effective width is sufficient to achieve sufficient rigidity. It cannot be lowered.

  The present invention is not based on the reduction of the effective bending width, but based on the technical idea of reducing the rigidity by using the twist of the material.

In other words, the seal member
A first incision pattern consisting of one incision existing in the center in the width direction;
When the sealing member is bent by having a second notch pattern formed of two notches existing at both ends in the width direction and having a notch pattern row formed in close proximity to each other, the two notches The seal material sandwiched between the patterns is twisted about the seal width direction as an axis, and the rigidity of the seal material is easily and effectively reduced.

  As will be understood from the examples described later, even when the notch portion in the first notch pattern and the notch portion in the second notch pattern do not overlap, the twist effect is exhibited. . Both notches may overlap.

  The said sealing member can be comprised from the below-mentioned laminated | multilayer film, for example, and is affixed and used for the package body of goods. Therefore, it can be a thin plate having an arbitrary planar shape. The planar shape can be, for example, a rectangle, a circle, an ellipse, etc .; a shape lacking a part of these shapes; a combination of these shapes; an indefinite shape, or the like. Typically, the shape is a rectangle or a rounded corner of the rectangle. Hereinafter, in the present specification, such a shape may be collectively referred to as “substantially rectangular”.

  The size of the seal member of the present invention is arbitrary. When the sealing member is, for example, a substantially rectangular shape, the length of the long side can be 15 mm or more, 20 mm or more, or 30 mm or more, 200 mm or less, 150 mm or less, or 100 mm or less. It can be 5 mm or more, 7 mm or more, or 10 mm or more, 50 mm or less, 30 mm or less, or 20 mm or less.

  In the sealing member of the present invention, one end portion and the other end portion opposed thereto refer to two long sides or two short sides of the substantially rectangular shape when the sealing member has a substantially rectangular shape. Considering the ease of sticking the seal member, etc., it is preferable to form the cut pattern row so as to extend between the two long sides. Here, when the seal member has a circular shape, the long side is an arbitrary circular arc having a central angle of less than 180 ° (preferably 90 ° or more) and a point symmetry with the circular outer periphery. An arc on the opposite side.

  The above-mentioned cut pattern sequence has at least one first cut pattern and one second cut pattern. These cut patterns exist substantially in parallel. The interval between adjacent cut patterns (hereinafter also referred to as “P1”) is 4 mm or less. The smaller the interval, the lower the stiffness. Therefore, the value of P1 is preferably less than 4 mm, more preferably 3 mm or less, and even more preferably 2 mm or less. On the other hand, since it is difficult in processing technology to make the value of P1 less than 1 mm, the value of P1 is preferably 1 mm or more.

  The first notch pattern includes a non-notch portion, a notch portion, and the other end that are emitted from the one end portion on a virtual straight line from one end portion to the other end portion in the width direction of the seal member. It has a non-notch part which reaches a part in this order.

  In this first notch pattern, the distance from one end to the start point of the notch and the distance from the end of the notch to the other end (collectively, hereinafter also referred to as “P2”). The smaller the value, the lower the stiffness. From this point of view, P2 is preferably 35% or less of the width of the seal member (the distance between one end where the cut pattern row exists in the seal member and the other end), and 33.3. % Or less, or 30% or less, more preferably 20% or less, or 16.7% or less. On the other hand, even if P2 is significantly smaller than 16.7% of the width of the seal member, the reduction in stiffness is saturated. Furthermore, if this value is less than 1 mm, there is a concern that it may cause difficulties in processing technology, and handling properties at the time of processing and pasting of the seal member are significantly deteriorated. Therefore, P2 is preferably 1 mm or more, and may be 2 mm or more.

  In the first cut pattern, there are two P2s in the width direction. In order to maintain the rigidity balance of the seal member and prevent partial peeling after the seal member is attached, it is preferable that these two P2s have substantially the same value. Therefore, the length of the cut portion in the first cut pattern is preferably 30% (= 100% − (35% × 2)) or more, and 33.4% (= 100% − (33.3% × 2)) or more, more preferably 40% (= 100% − (30% × 2)) or more, and 60% (= 100% − ( 20% × 2)) or more is particularly preferable. The upper limit of this length is preferably set so that P2 can secure a distance of 1 mm or more or 2 mm or more.

  The second cut pattern is formed on a virtual straight line from one end to the other end in the width direction of the seal member, and a cut, a non-cut, and the other cut from the one end. It has a cut portion that reaches the end portion in this order.

  In this second cut pattern, the length of the cut portion starting from one end portion and the length of the cut portion extending from the end point of the central non-cut portion to the other end portion (hereinafter collectively referred to as “P3”). )), The greater the value, the lower the stiffness. For this reason, at least one of P3 is preferably 15% or more of the width of the seal member, more preferably 16.7% or more, or more preferably 20% or more, and further preferably 30% or more. preferable.

  On the other hand, from the viewpoint of securing a significant length for the non-cut portion remaining in the center portion in the second cut pattern and giving practical strength to the seal member, at least one value of P3 is It is preferably 47.5% or less of the width of the sealing member, more preferably 45.8% or less, still more preferably 40% or less, and particularly preferably 35% or less. The length of the central non-cut portion in the second cut pattern is preferably 1 mm or more as the actual length.

  In order to maintain the rigidity balance of the seal member and prevent partial peeling of the seal member, it is preferable that two P3s present in the second cut pattern have substantially the same value.

According to a preferred aspect of the present invention, the above-mentioned notch pattern sequence is:
Three cut patterns having the first cut pattern, the second cut pattern, and the first cut pattern in this order, or the second cut pattern, the first cut pattern, and the second cut pattern in this order. It has a triple cut pattern.

  In these cases, the above-described twisting effect is more effectively exhibited, and the rigidity can be easily reduced. When the seal member of the present invention has three cut patterns, it is preferable that the value of the interval P1 between the cut patterns is within the above range. In this case, the two first cut patterns that exist may be formed of substantially the same pattern or different patterns. However, from the viewpoint of effectively expressing the twisting effect intended by the present invention, it is preferable that both of them have substantially the same pattern.

  The seal member of the present invention may have only one notch pattern row as described above, or may have two or more places on the same seal member with appropriate intervals. The number of cut pattern rows is preferably one or two.

  A seal member that owns one cut pattern row can be suitably used as an authentication seal that is bent and sealed in a package to seal an opening composed of two adjacent surfaces. For example, in a rectangular parallelepiped box, the case is affixed to the center of the opening of the lid. In this case, the sealing member is attached so that the cut pattern row is bent in the package and coincides with the opening formed by two adjacent surfaces. By sticking in such a manner, the rigidity of the sealing member at the bent portion of the package is low, so the rigidity of the sealing member overcomes the adhesive force and does not jump up and peel off, contributing to prevention of counterfeiting. .

  A seal member having two cut pattern rows can be suitably used as a seal authentication seal for a package having one or two bent openings to be sealed. For example, this is the case of an authentication sticker or the like applied across three surfaces adjacent to the U-shape of the thin case. In this case, by sticking the sealing member so that the two cut pattern rows respectively coincide with the corners of the U-shape, the rigidity of the sealing member overcomes the adhesive force at both of the two bent portions. And no longer bounce off and peel off.

  The notch pattern of the notch pattern row can be a thing that penetrates the seal member, a half cut from the surface of the seal member, or a half cut from the back surface of the seal member (the side that is attached to the product or the like). Among these, since the effect of reducing the stiffness is high, one that penetrates the seal member is preferable.

  The sealing member of the present invention having the above-described cut pattern row can be manufactured using any desired material. Use of a material having high rigidity is preferable in that the effect of the present invention is effectively exhibited. For example, a sealing material having at least one resin layer is suitable. Examples of the resin constituting the sealing material include polyester, polyolefin, cellulose, acrylic resin, and the like.

  Regarding the stiffness of the sealing material, the value of the bending repulsion (Gurley stiffness) measured in order according to the bending repulsion A method of JIS L1096 “General Textile Testing Method” for the sealing material is 0.750 mN or more, 1.000 mN or more, or 1. When the material which is 200 mN or more is used, the effect of the present invention is maximized. The upper limit of the Gurley stiffness of the sealing material may be, for example, 3.000 mN or less or 2.000 mN or less.

  The sealing material used in the present invention may have, for example, a retroreflective layer or a peeling / disintegrating layer, or both.

The retroreflective layer is
Show retroreflection in retroreflection conditions;
In the non-retroreflective condition, it is a layer having optical transparency, or a layer that is optically opaque and in which reflected light from the reflective material can be seen.

  The retroreflective layer preferably has at least a transparent spherical body layer and a reflector layer. In addition to these, a surface coat layer, a fixed resin layer, a base material layer, an adhesive layer, and the like may be included.

  A transparent spherical body layer contains many transparent spherical bodies. Examples of the transparent spherical body include glass small spheres (glass beads), resin beads, and the like. The transparent sphere may have, for example, an average particle size of about 10 μm to 100 μm and a refractive index of about 1.9 to 2.2.

  The reflective material layer is provided directly or indirectly via another layer on the lower surface (inner side of the sealing material) of the transparent spherical layer, and has a function of reflecting light incident on the transparent spherical layer. . Examples of the reflective material layer include a layer containing a pearl pigment, a metal thin film, and the like.

  The base material layer optionally included in the retroreflective laminate has a function of supporting the transparent spherical body layer and the transparent reflector layer, and is a film made of a resin such as polyester, polyolefin, cellulose, or acrylic resin. Can be.

  When present, the fixed resin layer is located between the transparent spherical body layer and the base material layer, and is a layer for fixing a large number of transparent spherical bodies in an aligned manner. As the resin constituting the fixed resin layer, for example, an acrylic resin, a urethane resin, a silicone resin, or the like can be used. In order to increase the strength of the fixed resin layer, a crosslinking agent may be added to the resin.

  When the retroreflective laminate has an adhesive layer, a known material can be used as the constituent material for the sealing member.

  Once the peel-disintegrating layer is attached and then peeled off, characters such as “VOID” and “opened” or a pattern having the same kind of meaning appear on the peel-disintegrating layer and the sticking destination, and peeling By leaving a trace of the history, it is a laminate for facilitating the discovery of unauthorized opening and preventing falsification.

  A peeling collapse layer has a surface base material (base material of a peeling decay layer), a pattern-like peeling layer, a thin film metal layer or a transparent resin layer, and an adhesion layer at least, for example. A printed layer may be further provided on the surface substrate, and a release paper may be further provided below the adhesive layer.

  When the seal having the peel-disintegrating layer is once pasted and peeled off, the thin film metal layer or the transparent resin layer peels off together with the surface base material in the region where the pattern-like release layer does not exist, but in the region where the pattern-like release layer exists, Since the thin film metal layer or the transparent resin layer is peeled off from the surface base material and remains on the sticking destination together with the adhesive layer, characters or patterns corresponding to the pattern of the pattern release layer will be raised.

Examples of the base material for the peel-disintegrating layer include a polyester film;
As the patterned release layer, for example, a silicone resin or the like;
As the thin metal layer, for example, an aluminum vapor deposition layer, a silver vapor deposition layer, a printing layer made of aluminum paste, etc .;
Examples of the adhesive layer include polyester adhesives, acrylic adhesives, urethane adhesives, vinyl oxide adhesives, and the like;
Each can be used.

  When the peel-disintegrating layer is once attached and then peeled off, the security of the peel-disintegrating layer is further improved by leaving a trace of the peeling history on the peel-disintegrating layer and the sticking destination.

  Commercially available products may be used as the peel-disintegrating layer, and examples thereof include “TE Poppy 50 VOID PAT-1 8LK” manufactured by Lintec Corporation.

  FIG. 12 is a schematic view for explaining a configuration of a preferred embodiment of the seal member in the present invention. The seal member 100 of FIG. 12 has the printed layer 20 on the surface base material 11 in the peelable collapsible layer 10, and has the retroreflective layer 30 on it. In FIG. 12, the printed layer 20 is drawn as a thick film layer that constitutes a special layer, but this is a convenient expression for exaggerating the presence of the printed layer. Actually, it should be understood that the printing layer is formed in a thin film form with a visible degree by a known printing means or the like, and it is not necessary to form a special layer due to the presence of the printing layer.

  The peel-disintegrating layer 10 in the seal member 100 of FIG. 12 is a laminate having a surface substrate 11, a pattern-like release layer 12, a thin film metal layer or transparent resin layer 13, and an adhesive layer 14 in this order. is there.

  The retroreflective layer 30 in the seal member 100 of FIG. 12 is a laminate having a transparent spherical body layer 31, a transparent reflective layer 32, a fixed resin layer 33, a base material layer 34, and an adhesive layer 35 in this order. is there.

<Examples 1 and 2 and Comparative Examples 1-8>
In the following examples and comparative examples, the stiffness (Gurley stiffness) of seal members with various cuts was examined.

The sealing member of each Example and Comparative Example is an open type retroreflective film “LIGHT FORCE ^™ LFU-1400” manufactured by Maruhito Co., Ltd. as a retroreflective layer, and “ It is a laminate of “TE Poppy 50 VOID PAT-1 8LK”. Using a seal processing machine “PC45” manufactured by Shiki Co., Ltd., two layers are laminated so that the adhesive layer of the retroreflective layer adheres to the base material of the peeling collapse layer, and this is pinned using a pinnacle blade. At the same time as punching into a rectangular seal shape having a width of 12 mm and a length of 38 mm, a notch was formed, thereby producing seal members of the examples and comparative examples. Here, the notch is assumed to penetrate the seal member.

  The shapes of the cuts in the seal members of Examples 1 and 2 and Comparative Examples 1 to 8 are shown in FIGS.

  Each seal member cut to 25 mm from the end of the long side was used as a sample for measuring the stiffness. Using the Gurley type stiffness meter made by Kumagai Riki Kogyo Co., Ltd., grip the vicinity of the side cut by the chuck (the side far from the remaining notch) and bend repulsion of JIS L1096 “General Textile Testing Method” The stiffness was measured according to Method A. The measurement was performed with n = 5, and the measurement results using the average value as the measurement value are shown in Table 1 and FIG.

<Examples 3 to 5>
In the following examples, in order to verify the preferred mode of the notch pattern in the seal member of the present invention, an experiment was conducted to examine the stiffness by varying the size of each part of the notch pattern. Specifically, after punching out a laminate of the same retroreflective layer and peeling collapse layer as in Example 1 and the like into a rectangular seal shape having a width of 12 mm and a length of 38 mm, P1 and P2 of the notch pattern shown in FIG. , And P3 were varied, and the Gurley stiffness was measured by the same method as described above.

[Example 3]
In Example 3, each of P2 and P3 in the cut pattern was fixed to 2 mm, and the stiffness was measured by varying P1 in the range of 1 to 4 mm. The measurement results are shown in FIG.

  From FIG. 8, it is understood that when P1 = 4 mm, the same degree of rigidity as in Comparative Example 6 is shown, and the smaller the P1 value, the smaller the rigidity. From this, it was found that the value of P1 is preferably less than 4 mm, more preferably 3 mm or less, and even more preferably 2 mm or less. Since it is difficult in processing technology to make the value of P1 less than 1 mm, the value of P1 is preferably 1 mm or more.

[Example 4]
In Example 4, among the slit patterns, P1 was fixed to 1 mm, P3 was fixed to 2 mm, P2 was made the same size at two locations, and the stiffness was measured by varying the range of 1 to 5 mm. The measurement results are shown in FIG. When P2 is 2 mm or more, there is no overlapping portion between the cut portion in the first cut pattern in the upper and lower parts of FIG. 7 and the cut portion in the second cut pattern in the middle.

  Referring to FIG. 9, the smaller the value of P2, the smaller the stiffness, which was good when P2 was 4 mm or less (33.3% or less). When P2 was 2 mm or less, the decrease in stiffness was saturated, and no significant change in stiffness was observed even when P2 was further decreased. Since it is difficult in processing technology to make the value of P2 less than 1 mm, the value of P2 is preferably 1 mm or more. Even in the case of P2 = 2 mm to 4 mm (16.7% to 33.3%) where there is no overlap between the notch portion of the first notch pattern and the notch portion of the second notch pattern, the effect of reducing the rigidity is obtained. It is surprising to have expressed.

[Example 5]
In Example 5, among the slit patterns, P1 was fixed to 1 mm, P2 was fixed to 2 mm, and P3 was set to the same size in two places, and the stiffness was measured by varying the range of 5.5 to 1 mm. . The measurement results are shown in FIG.

  Referring to FIG. 10, the greater the value of P3, the smaller the stiffness, which was good when P3 was 2 mm or more (16.7% or more). When P3 was 4 mm or more (33.3% or more), the decrease in stiffness was saturated, and no significant change in stiffness was observed even when P3 was further increased. From the viewpoint of processing technology, it is preferable to secure 1 mm or more as the length of the central non-cut portion in the second cut portion, and thus the value of P3 is preferably 5.5 mm or less.

From the above results, it is understood that the following range is preferable for the seal member having the size and pattern shown in FIG.
P1: 1 mm or more and less than 4 mm P2: 1 mm or more, 33.3% or less, more preferably 16.7% or less with respect to the width of the sealing member P3: 16.7% or more with respect to the width of the sealing member, and the remainder is 1 mm that's all

DESCRIPTION OF SYMBOLS 10 Peel-disintegrating layer 11 Surface base material 12 Pattern-like peeling layer 13 Thin film metal layer or transparent resin layer 14 Adhesive layer 20 Print layer 30 Retroreflective layer 31 Transparent spherical body layer 32 Transparent reflective layer 33 Fixed resin layer 34 Base material layer 35 Adhesive layer 100 Seal member

Claims (7)

A seal member having one end portion and another end portion opposite to the one end portion, and having at least two continuous cut pattern rows extending between the both end portions;
The notch pattern sequence is:
On the straight line, a first notch pattern having in this order a non-notch part, a notch part, and a notch part extending from the one end part to the other end part,
On a straight line, it has a second notch pattern that has a notch part that originates from the one end part, a non-notch part, and a notch part that reaches the other end part in this order,
The sealing member, wherein the first notch pattern and the second notch pattern in the notch pattern row are substantially parallel with an interval of 4 mm or less.   The length of at least one of the cut portions in the second cut pattern is 15% or more with respect to the distance between the one end portion and the other end portion, and the length of the non-cut portion The sealing member according to claim 1, wherein is 1 mm or more.   The length of the cut portion in the first cut pattern is 30% or more with respect to the distance between the one end portion and the other end portion, and the length of the non-cut portion is 1 mm or more. The seal member according to claim 1 or 2. The notch pattern sequence is
A triple cut pattern comprising the first cut pattern, the second cut pattern, and the first cut pattern, or the second cut pattern, the first cut pattern, and the second cut. It has a triple cut pattern consisting of patterns,
These triple cut patterns are present in the order described above in a substantially parallel manner with an interval of 4 mm or less.
The sealing member as described in any one of Claims 1-3.   The seal member according to any one of claims 1 to 4, wherein the cut pattern row is provided at two locations separated from each other.   The seal member according to any one of claims 1 to 5, wherein the seal member is made of a material having at least one resin layer.   The sealing member according to any one of claims 1 to 6, comprising a retroreflective layer.

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