JP2003053866A - Laminate - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a laminate enabling the easy confirmation of opening or the like and incapable of being reused. SOLUTION: The laminate comprises a laminated structure including stretching layers capable of being stretched in the direction parallel to the layers and a reticulated structure layer. In the laminate, a multilayered structure including the stretching layers holding the reticulated structure layer is provided and the stretching layers are pulled in the direction parallel to the layers to be stretched and, as a result of the deformation of the reticulated structure layer accompanied by stretching, it is suitable to three-dimensionally expose meshes to the surface of the laminate. The laminate for confirming opening is used in a state laminated to an adherend and stretched in the direction parallel to the layers at the time of opening and peeling.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a laminate, and more particularly to improvement of its constituent materials.

[0002]

2. Description of the Related Art In recent years, in order to provide consumers with a sense of security, the necessity of preventing foreign substances from being mixed in pharmaceuticals, cosmetics, foods, etc. and ensuring the safety of products has been highlighted. BACKGROUND ART Conventionally, in order to prevent foreign matter from entering, various packages have been devised, for example, by sticking a laminate on the exterior of a product so that the presence / absence of opening can be determined at a glance. As a conventional general laminated body, a laminated body as shown in FIG. 7 (a) is known.

The laminated body shown in the figure has a multi-layered structure including a base material layer 124, a peeling layer 120, a pattern layer 122 and an adhesive layer 112. The pattern layer 122 is laminated on the adhesive layer 112. The peeling layer 120 is laminated on a part of the surface of the substrate, and the base layer 124 is laminated on the pattern layer 122 with the peeling layer 120 sandwiched between the base layer 124 and the peeling layer 12.
0, the peeling layer 120 and the pattern layer 122 are in close contact with each other. When the laminate is peeled off, part of the base material layer 124, the peeling layer 120, and the pattern layer 122 is separated from the adhesive layer 112, and the pattern layer 122 is destroyed (FIG. 7B). Therefore, the presence or absence of opening can be confirmed by the destruction of the pattern layer 122. This laminate has little adhesive residue even if the adhesive layer 112 is peeled off from the product after purchase of the product or when the laminate is no longer needed, and can be applied to a wide range of containers.

[0004]

However, in the conventional laminate, although it is premised that a part of the base material layer 124, the peeling layer 120, and the pattern layer 122 is separated from the adhesive layer 112 at the time of peeling, the solvent is not used. If the adhesive force of the adhesive layer was weakened by using or heating the product, it was possible to integrally peel it. It retains its shape even after opening and peeling, so it can be reused, and if it is reattached, it will be in the same state as before peeling, and there is a problem in that it is difficult to confirm the presence or absence of opening. There has been a demand for a laminate capable of preventing the above. The present invention has been made in view of the above conventional problems, and an object of the present invention is to provide a laminate that can be easily confirmed for opening and the like and cannot be reused.

[0005]

In view of the above problems, as a result of intensive investigations by the present inventors, a laminate having a multilayer structure including a mesh structure and a stretched layer in the laminate structure has a tensile direction in peeling. The present invention was completed by finding that the presence or absence of opening can be easily confirmed by stretching the sheet and deforming the network structure layer accompanying the stretching.

A first subject of the present invention is a laminate characterized in that it has a laminated structure comprising a stretched layer which can be stretched in a direction parallel to the layer and a network structure layer. The laminate has a multilayer structure including a stretched layer sandwiching a mesh structure layer, and stretched by pulling in a direction parallel to the layers, resulting in deformation of the mesh structure layer due to stretching, resulting in a laminate It is preferable that the mesh is three-dimensionally raised on the surface.

In the laminate, it is preferable that a part of the stretched layer has a non-stretched portion. In the laminate,
A pattern is formed on the surface of the stretched layer, and it is preferable that the pattern is deformed during stretching. In the laminate, it is preferable that the pattern is a hologram or an optical diffraction recording material.

In the laminate, it is preferable that the stretched layer has plasticity. In the laminate, it is preferable that the stretched layer has elasticity. Further, it is preferable to laminate the laminate on the adhesive layer. In the laminate, it is preferable that a non-stretched layer is laminated on the surface of the stretched layer to increase the mechanical strength of the laminate.

A second subject matter of the present invention is a laminate for confirmation of opening, which is characterized in that, in the above-mentioned laminate, it is used by being attached to an adherend and stretched in a direction parallel to the layer at the time of peeling. . In the laminate, a non-stretched layer is laminated on the surface of the stretched layer to increase the mechanical strength of the laminate, prevent stretching during sticking, and stretch by separating the non-stretched layer from the stretched layer during unsealing and peeling. Is preferred. In the laminate, it is preferable to laminate a non-stretched layer on the surface of the stretched layer to increase the mechanical strength of the laminate, prevent stretching during sticking, remove the non-stretched layer after sticking, and stretch during unsealing and peeling. Is.

In the present invention, "stretching" means extending in a plane parallel to the layers as shown in FIG. In the present invention, the elongation means the percentage of the ratio of the elongation between the gauge points on the test piece when pulled by a force of 1 N / cm and the original gauge point distance. Further, in the present invention, elasticity is defined as a deformation rate of less than 5% when the tensile tension is removed after stretching in the tensile direction, and plasticity is defined as a deformation rate of 5% or more.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION As an example of the laminate of the present invention, a laminate for confirmation of opening will be described in detail, but the scope of the present invention is not limited to this. The laminate is
It is used by sticking to the unsealed part of a product etc. by utilizing the adhesive strength of the adhesive layer. In order to open the product etc., it is necessary to peel off this laminate, but since this laminate has a stretched layer, when it is peeled off after being attached to the product etc., it stretches in the pulling direction (Fig. 1). . Therefore, by using the laminate of the present invention, it is possible for anyone to easily determine whether the product to which the laminate is attached has been opened.

A preferred embodiment of the present invention will be described below. The laminate 10 of the present invention is characterized by having a multi-layer structure in which the adhesive layer 12 and the stretched layer 14 with the mesh structure layer 16 sandwiched therebetween are laminated (FIG. 2). Since it has a stretched layer, it is stretched in the tensile direction at the time of peeling from the adherend 30 (FIG. 1), and as a result of the deformation of the network structure layer 16 accompanying the stretching,
A mesh appears three-dimensionally on the surface of the laminate. Therefore, anyone can easily check the presence / absence of unsealing by looking at the surface of the laminated body and cannot reuse it, which leads to prevention of contamination of foreign matter.

[0013]Mesh structure layer The network structure layer used for the laminate in the present invention is stretched.
On the other hand, the mesh structure is deformed and unevenness occurs in the plane.
(Fig. 3). Material used as a mesh structure layer
Examples of the quality include various resins and fibers. As resin
Is a polyolefin such as polyethylene or polypropylene.
Resin, polyurethane resin, polyethylene terephthalate
(PET), polyvinylidene chloride, etc. can be used
Wear. These are printed on the screen when dissolved in a solvent.
It is applied in a mesh shape on the base material by a printing method etc., and the solvent is dried.
After being made into a mesh sheet, it is used.

As the fibers, there can be used polyolefin resins such as polyethylene and polypropylene, polyurethane resins, synthetic fibers such as nylon and rayon, and natural fibers such as silk, linen and cotton. These fibers are formed into a mesh as a woven fabric. The material is not limited to these materials, and various non-woven fabrics and the like can be used. The type of mesh structure is not specified, but the size per mesh is 1 so that unevenness is likely to occur in the laminate.
It is preferable that it is mm to 30 mm. Further, the network structure layer may have a single structure or a multilayer structure.

[0015]Stretched layer The stretched layer used in the laminate of the present invention has stretchability.
After being attached to the adherend, it does not break during peeling and
Stretch in the tension direction. Sandwiched by peeling during peeling
The deformed mesh structure layer deforms, so there are no irregularities on the surface of the stretched layer.
Occurs. Therefore, opening confirmation can be confirmed by the presence or absence of this unevenness.
It The stretched layer may be plastic or elastic,
When used for confirmation of opening, it should be particularly plastic.
It is suitable. If the extensibility is plastic, the product will be
Since the length of the layered body does not return to the original value, the deformation of the mesh structure layer
Easy to check. Also, a pattern is formed on the stretched layer.
Is preferred. If a pattern is formed, stretch
The pattern is deformed by the unevenness generated on the layer surface. Therefore, unevenness
In addition to the presence / absence of the mark, the pattern can be confirmed by opening the pattern.
It is suitable.

The elongation of the stretched layer is preferably 20 to 500%, and most preferably 50 to 200%. If it is 20% or less, it is difficult to determine the presence or absence of unevenness or the destruction of the pattern, and
When it is at least%, it is difficult to handle. As the stretched layer, polyurethane resin, polyethylene resin, polypropylene resin, polyvinyl chloride resin, polyvinylidene chloride resin, silicone resin or the like can be used. Among these resins, polyurethane resin is preferable. The stretched layers on both sides of the network structure layer may be the same material or different materials. The stretched layer may have a single structure or a multilayer structure. If necessary, a curing agent may be added to adjust the strength and elongation. The stretched layer can also be colored by adding a pigment, a dye or the like to the resin used as the stretched layer. Further, a part of the stretched layer may be set as a non-stretched portion to compare the degree of stretching.

The pattern formed on the stretched layer refers to all visually appealing patterns, which may or may not have a specific meaning in terms of content, and functionally,
It may be for the purpose of design, appearance decoration, or for information transmission. Examples of such a pattern layer include images of characters, numbers, symbols, figures, patterns, and tint blocks. The forming method may be various methods such as printing, and is not particularly limited as long as it can be confirmed to be destroyed by stretching, and a hologram or an optical diffraction recording material may be used.

The hologram or optical diffraction recording material can be obtained by a conventionally known method. The hologram can provide a stereoscopic effect, and the optical diffraction recording material can provide a pearlescent effect. Further, the hologram or optical diffraction recording material may be combined with a metal foil, a pigment or a pearlescent agent to improve the design.

[0019]Adhesive layer The adhesive layer serves to attach the laminate to the adherend. Book
In the invention, the adhesive layer may be an acrylic type, a rubber type, or the like.
A general adhesive can be widely used. Also sticky
The adhesive layer is not always necessary when it is attached to an adherend.
Yes. In addition, stack release paper to protect the adhesive side of the adhesive layer.
Layering is preferred. As release paper in the present invention
Is paper made of silicone resin, wax, paraffin, etc.
Alternatively, a coating material such as a film is used.

[0020]Laminated body in which non-stretched layers are laminated Increase the mechanical strength of the entire laminate in the present invention, and when applying
To prevent the laminate from stretching on the
In order to protect the
It can also be layered (Fig. 4). The pattern of the non-stretched layer is external
Constructed from highly transparent material to keep visible
Is preferably provided. The unstretched layer has a single structure,
It may have a multilayer structure. The material of the non-stretched layer is not particularly limited
However, it has properties such as abrasion resistance, stain resistance, and solvent resistance.
It is preferable to select from those having
Nil, polyester, polycarbonate, acrylic resin
It is possible to use grease, urethane resin, or the like.

The thickness of the non-stretched layer is preferably 10 to 200 μm, particularly 38 to 50 μm. If it is thinner than 10 μm, the mechanical strength of the laminate will not be sufficiently increased. Also,
When it is used by sticking to an adherend as an unsealing confirmation laminate, etc., if it is thicker than 200 μm, only the non-stretched layer is separated at the time of sticking. The non-stretched layer can be used after being removed after application, or can be left as it is during application.

When the non-stretched layer is used after being attached to the laminate, it is preferable that stretching of the laminate can be prevented during attachment and stretching of the laminate can be prevented when peeled from the adherend. By laminating the non-stretched layer, the mechanical strength of the entire laminated body is increased and the laminated body is prevented from being stretched when it is attached to the adherend. Further, since the non-stretched layer is removed after sticking, stretching does not hinder stretching of the laminate,
The network structure layer is deformed and unevenness is generated on the surface of the laminate. Therefore, it is possible to confirm the unsealing and the like by confirming the presence or absence of unevenness.

The adhesive force between the non-stretched layer and the stretched layer is 0.0
It is preferably 1 to 0.5 N / cm, particularly 0.04 to 0.3 N / cm. If it is weaker than 0.01 N / cm,
If the protective layer separates during application and is stronger than 0.5 N / cm, it is difficult to remove the non-stretched layer after application and the surface of the laminate is damaged. Further, in this case, the non-stretched layer does not necessarily have to be made of a material having high transparency.

When the non-stretched layer is used as it remains during application, the non-stretched layer 18 is separated from the stretched layer 14 at the time of peeling so as not to hinder the elongation in the pulling direction at the time of peeling from the adherend. Further (FIG. 5), it is preferable to adjust the adhesive force between the adhesive layer 12 and the adherend 30 to be stronger than the adhesive force between the non-stretched layer 18 and the stretched layer 14. Specifically, the adhesive force between the adherend and the adhesive layer is 1 to 10 N / cm, and the adhesive force between the non-stretched layer and the lower layer is 0.01 to 0.5 N / cm, and particularly 0.
It is preferable to set it to 04 to 0.3 N / cm.

By controlling the adhesive strengths of the adherend and the adhesive layer and between the non-stretched layer and the lower layer, stretching of the laminate can be prevented during sticking, and the non-stretched layer 18 can be the stretched layer 1 when peeled from the adherend.
4, which is preferable because it does not hinder the stretching of the laminate. In this case, the non-stretched layer is preferably made of a material having high transparency so that the stretched layer can be seen from the outside.

The laminate of the present invention can be prepared as follows. A resin is applied onto the release paper 32 using an applicator and dried to form a stretched layer 14, and a network structure layer 16 is sandwiched between them, and further resin is applied and dried to form a stretched layer 14. . Characters and patterns are printed on the surface of the stretched layer 14 as needed (FIG. 6A). At that time, the non-stretched layer 18 can be laminated on the stretched layer 14 (FIG. 6B). After that, peel off the release paper 32,
An adhesive is applied to the stretched layer 14 side and dried to obtain an adhesive layer 1
2 is created (FIG. 6 (c)). Further, in order to protect the adhesive surface of the adhesive layer 12, a release paper 32 is attached (see FIG. 6).
(D)).

Since the laminated body of the present invention uses the stretched layer, it exhibits sufficient adhesiveness even on a curved surface or the like which was difficult to adhere to. Further, the shape of the laminate of the present invention is not particularly limited, it is necessary to stretch by a suitable force, the mesh is three-dimensionally raised on the surface of the laminate, or the pattern is deformed or destroyed, so the container to be applied In accordance with the shape of the laminated body, a shape that allows the effect of the laminated body to be easily exhibited is appropriately selected, and for example, a circular shape, an elliptical shape, a strip shape, a polygonal shape, or the like is used.

The laminate of the present invention is made of high-quality paper or art paper by forming each layer by selecting an appropriate material in consideration of adhesiveness, heat resistance, weather resistance, chemical resistance, etc. depending on the product used. , Mirror-coated paper, Japanese paper, rough surface paper, general printing such as E-stage, UV printing, UV varnish, UV coated paper, press coated, various laminated paper such as PVC, PP, PET, etc., soft, hard, foamed Vinyl such as vinyl, ABS, AS, HiPS, AC, PP, PET
It can be used for various materials such as plastics, bookbinding, albums, T-shirts, various textiles such as cloth products, leather, glass, metal, and woodworking. The materials that can be used in the present invention are not limited to those listed here.

[0029]

EXAMPLES The present invention will be described more specifically below with reference to examples.
As will be appreciated, the scope of the invention is limited to these examples.
There is no such thing.Example 1 Stretchable polyurethane resin (Nipporan 51
96^TM: Applies to Nippon Polyurethane Industry Co., Ltd.
Apply with a coater to a coating thickness of 100 μm
It was Dry for 12 hours at room temperature to obtain a dry film thickness of 20 μm.
A stretchable polyurethane sheet was obtained. As the mesh structure layer, laminated nonwoven fabric (Sof NA5
5^TM: Sekisui Chemical Co., Ltd.) 2 sheets produced first
Sandwiched between the stretchable urethane sheets of and heated roller
A heating and pressure drawing process was performed at 140 ° C. using a drawing machine.
Transfer hologram sheet (Kurtz
Made) and 140 using a heating roller stretching machine
The hologram is stretched by heating and stretching at ℃.
Transfer to a resin / mesh layer / stretchable polyurethane laminated sheet
I copied it. After that, peel off the release paper once and stick it on the polyurethane surface.
Adhesive (1549^TM: Three Bond Co., Ltd.) applied thickness 10
It was applied so as to have a thickness of 0 μm. Dry for 20 minutes at 50 ° C
Then, the release paper was attached to the adhesive surface again. Obtained product
A holographic image appears on the surface of the layered body and it is beautiful in design
Met.

[0030]Example 2 Stretchable polyurethane resin (Nipporan 51
96^TM: Applies to Nippon Polyurethane Industry Co., Ltd.
Apply with a coater to a coating thickness of 100 μm
It was Dry for 12 hours at room temperature to obtain a dry film thickness of 20 μm.
A polyurethane sheet was obtained. As the mesh structure layer, laminated nonwoven fabric (Sof NA5
5^TM: 2 sheets made by Sekisui Chemical Co., Ltd. first
Sandwiched between the urethane sheets of the heating roller stretching machine
Was subjected to a heating and pressure stretching treatment at 140 ° C. After that, peel off the release paper once and stick it on the polyurethane surface.
Adhesive (1549^TM: Three Bond Co., Ltd.) applied thickness 10
It was applied so as to have a thickness of 0 μm. Dry for 20 minutes at 50 ° C
Then, the release paper was attached to the adhesive surface again.

[0031]Example 3 Stretchable polyurethane resin (Nipporan 51
96^TM: Applies to Nippon Polyurethane Industry Co., Ltd.
Apply with a coater to a coating thickness of 100 μm
It was Dry for 12 hours at room temperature to obtain a dry film thickness of 20 μm.
A stretchable polyurethane sheet was obtained. As a mesh structure layer on the surface of the polyurethane sheet,
Stretchable polyurethane resin (Nipporan 5196^TMRack
Bridge agent Coronate L^TMWith 5% added: Nippon Polyurine
Retan Kogyo Co., Ltd. screen-printed in a mesh pattern
I applied it. Drying and crosslinking reaction were performed at 50 ° C for 2 hours
After that, overlay the polyurethane sheets and heat
Using a Raler stretching machine at 140 ° C
It was Transfer hologram sheet (curl) on the surface of the obtained sheet.
1) by using a heating roller drawing machine.
The hologram is stretched by heating and stretching at 40 ° C.
Polyurethane / mesh layer / stretchable polyurethane laminated sheet
Transferred to. After that, peel off the release paper once and stick it on the polyurethane surface.
Adhesive (1549^TM: Three Bond Co., Ltd.) applied thickness 10
It was applied so as to have a thickness of 0 μm. Dry for 20 minutes at 50 ° C
Then, the release paper was attached to the adhesive surface again. Obtained product
A holographic image appears on the surface of the layered body and it is beautiful in design
Met.

[0032]Example 4 Stretchable polyurethane resin (Nipporan 51
96^TM: Applies to Nippon Polyurethane Industry Co., Ltd.
Apply with a coater to a coating thickness of 100 μm
It was Dry for 12 hours at room temperature to obtain a dry film thickness of 20 μm.
A stretchable polyurethane sheet was obtained. As a network structure layer on the stretchable polyurethane sheet
Non-stretchable urethane resin (Nipporan 5196^TMTo
Cross-linking agent Coronate L^TMWith 5% added: Nippon Poly
Urethane Industry Co., Ltd.) screen-printed in a mesh pattern
It was applied at. Drying and crosslinking reaction at 50 ℃ for 2 hours
After stacking, stretchable polyurethane sheets are further stacked,
Heating pressure stretching process at 140 ° C using a heating roller stretching machine
Reasoned. After that, peel off the release paper once and stick it on the polyurethane surface.
Adhesive (1549^TM: Three Bond Co., Ltd.) applied thickness 10
It was applied so as to have a thickness of 0 μm. Dry for 20 minutes at 50 ° C
Then, the release paper was attached to the adhesive surface again.

[0033]Comparative Example 1 Transferring holography on the surface of PET film with a thickness of 50 μm
Paste a sheet (made by Kurtz) and stretch with a heating roller
Machine is heated and pressurized at 140 ℃, PE hologram
Transferred to T film. After that, adhesive (1549^TM:
Three Bond Co., Ltd.) applied to a coating thickness of 100 μm
Clothed Dry at 50 ° C for 20 minutes and use as a protective sheet
Then, the release paper was attached.

[0034]Peel test The laminated body obtained in Example 1 and Comparative Example 1 was 1 cm × 5.
Cut into square pieces of cm, and put it on the border between the stopper and the glass bottle.
Stick it and leave it at room temperature for 12 hours to stabilize the adhesive layer
did. Peel off from the end of the laminate and pull in the pulling direction.
Stretching, unevenness on the laminate surface, hologram destruction, stretching
The sex and possibility of reuse were investigated. The results are shown in Table 1.

[0035]

[Table 1]         Tensile direction Laminated surface hologram Extensibility ReusePossibility of breakage due to unevenness Example 1 Yes Yes Yes Yes No plasticity Example 2 Yes Yes--Plasticity impossible Example 3 Yes Yes Yes Yes No plasticity Example 4 Yes Yes Yes-Plasticity impossibleComparative Example 1 None None None None Possible

The laminates of Examples 1 to 4 provided with the stretched layers sandwiching the network structure layer stretched in the tensile direction at the time of peeling and did not return to the original length after peeling. Further, as a result of the deformation of the network structure layer due to the stretching, unevenness was generated on the surface of the laminate. In the laminates of Examples 1 and 3 in which the hologram was formed on the stretched layer, the hologram was broken. Therefore, the laminates of Examples 1 to 4 were in a state where they could not be reused. On the other hand, the laminate of Comparative Example 1 in which the stretch layer was not provided did not stretch in the tensile direction at the time of peeling, the hologram was not destroyed, and after peeling, there was no change from before peeling, and thus it was in a reusable state. . As described above, in the laminates of Examples 1 to 4, the presence or absence of opening can be easily confirmed by the unevenness of the laminate surface and the destruction of the pattern, and it is effective in preventing foreign matter from entering.

[0037]

According to the laminate of the present invention, since the network structure layer and the stretched layer are provided, it is possible to easily confirm the unsealing and the like and obtain a laminate that cannot be reused.

[Brief description of drawings]

FIG. 1 is an explanatory diagram at the time of peeling a laminated body according to the present invention.

FIG. 2 is an explanatory diagram of a laminated body according to the present invention.

FIG. 3 is an explanatory diagram of a mesh structure layer of a laminate according to the present invention.

FIG. 4 is an explanatory diagram of a laminated body in which non-stretched layers according to the present invention are laminated.

FIG. 5 is an explanatory diagram at the time of peeling a laminate in which non-stretched layers according to the present invention are laminated.

FIG. 6 is an explanatory diagram of a method for producing a laminate according to the present invention.

FIG. 7 is an explanatory diagram of a conventional laminated body.

[Explanation of reference numerals] 10 laminated body 12 adhesive layer 14 stretched layer 16 network structure layer 18 non-stretched layer 30 adherend 32 release paper

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) G09F 19/12 G09F 19/12 L (72) Inventor Kenichi Sakuma 2-2 Hayabuchi, Tsuzuki-ku, Yokohama-shi, Kanagawa No. 1 Shiseido Research Center (Shin-Yokohama) (72) Inventor Masayoshi Wada 2-2-1 Hayabuchi, Tsuzuki-ku, Yokohama-shi, Kanagawa Shiseido Research Center (Shin-Yokohama) (72) Inventor Osawa Tetsuyuki 2-2-1, Hayabuchi, Tsuzuki-ku, Yokohama, Kanagawa Shiseido Research Center (Shin-Yokohama) (72) Inventor Asahi Kimura 2-2-1 Hayabuchi, Tsuzuki-ku, Yokohama, Kanagawa Prefecture Shiseido Research Center, Inc. (Shin Yokohama) F term (reference) 3E086 AC33 AC34 BA04 BA33 BA40 BB21 CA01 CA28 4F100 AK51A AK51C AK51E AR00A AR0 0B AR00C AR00D AR00E BA02 BA03 BA04 BA05 BA06 BA10A BA10C BA10D BA10E DC16B EJ37A EJ37C GB15 HB00D JK07A JK20A JL13E JL16

Claims (12)

[Claims] 1. A laminate having a laminated structure including a stretched layer capable of being stretched in a direction parallel to the layer and a network structure layer. 2. A laminate having a multi-layered structure including stretched layers sandwiching a network structure layer between them, and stretching by stretching in a direction parallel to the layers, and as a result of deformation of the network structure layer due to stretching, a laminate. The laminate according to claim 1, wherein a mesh is three-dimensionally raised on the surface. 3. The laminated body according to claim 1, wherein a part of the stretched layer has a non-stretched portion. 4. The laminate according to claim 1, wherein a pattern is formed on the surface of the stretched layer, and the pattern is deformed during stretching. 5. The layered product according to claim 4, wherein the pattern is a hologram or an optical diffraction recording material. 6. The laminate according to claim 1, wherein the stretched layer has plasticity. 7. The laminate according to claim 1, wherein the stretched layer has elasticity. 8. A laminate comprising the adhesive according to any one of claims 1 to 7 laminated on the adhesive layer. 9. The laminate according to claim 1, wherein a non-stretched layer is laminated on the surface of the stretched layer to increase the mechanical strength of the laminate. 10. The method according to any one of claims 1 to 9, which is used by being attached to an adherend and stretched in a direction parallel to the layer at the time of unsealing and peeling.
The laminated body for opening confirmation according to any one of 1. 11. Stretching by laminating a non-stretched layer on the surface of the stretched layer to increase the mechanical strength of the laminate, preventing stretching during sticking, and separating the non-stretched layer from the stretched layer during unsealing and peeling. The laminated body for opening confirmation according to claim 10, which is characterized in that. 12. A non-stretched layer is laminated on the surface of the stretched layer to increase the mechanical strength of the laminate, prevent stretching during sticking, remove the non-stretched layer after sticking, and stretch during unsealing and peeling. The laminated body for confirmation of opening according to claim 10.