JPH09302316A - Highly adhering structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an adhering structure not causing peeling or slipping down. SOLUTION: This highly adhering structure having a plastic foamed material 10 equipped with an adhesive agent layer 20, has holes 11 opened up at a surface N equipped with the adhesive agent layer 20 which is adhered to an objective surface M to be adhered, and equipped with an adsorbing function to the objective surface M to be adhered accompanying with the spring back of the elastic foamed material 10 after compressed deformation thereof.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the provision of a strong viscous structure which is stably adhered to a fastening surface by additionally having an adsorption function.

[0002]

2. Description of the Related Art When attaching various objects that cannot be attached by nails, screws, or the like, for example, when attaching various articles to a tile surface, or fixing various articles that cannot be fixed using nails, screws, etc., such as tiles. As a means of sticking and fastening means such as double-sided adhesive tape,
Alternatively, it has been fixed by suction with a suction cup or the like.

[0003] Further, when it is difficult to leave a stop mark such as a nail or a screw on a surface to be attached or an article to be attached, a means for attaching various articles to the surface to be attached or attaching the article to be attached. As
Adhesive fastening means such as double-sided adhesive tape, or suction in a suction state has been used.

[0004]

When tacking or fastening an attached article using such a double-sided adhesive tape,
The article to be attached is not fixedly fixed to the surface to be attached, and there is a problem that it is displaced on the attachment surface or peeled off from the attachment surface.

[0005] Such deviation or peeling off on the adhesive surface occurs more remarkably as the load applied to the adhesive surface increases in accordance with the weight of the attached article, etc., and becomes more prominent with the lapse of time after adhesion. There was a difficulty.

Further, when various articles are attached by using a suction function such as a suction cup, the smoothness of the attachment surface to be attracted is particularly strictly required, depending on the article to be attached. It was difficult to get many restrictions.

In addition, when attaching various articles by such a suction function, it is difficult to cause inconvenience such as lack of airtightness on the suction surface due to deterioration of constituent materials of the suction tool such as a suction cup over time.

The strong viscous structure according to the present invention relates to the provision of a strong viscous structure in which the adhesion to the attachment target surface is supplemented by the adsorption to the attachment target surface.

[0009]

In order to achieve the above-mentioned object, a strong viscous structure according to the present invention is provided in a plastic foam material 10 provided with an adhesive layer 20. , A hole 11 opened at least on the surface N provided with the adhesive layer 20 to be adhered to the adhesion target surface M
However, when the plastic foam material 10 is elastically restored after being compressed and deformed, the plastic foam material 10 has a suction function of adsorbing to the adhesion target surface M.

Next, in the strong viscous structure according to the invention of claim 2, in the strong viscous structure according to the invention of claim 1, the adhesive layer 20 has an opening hole 11 in the surface N to be adhered to the adhesion target surface M. Is provided so as to cover the surface including all or part of the inside of the above, or the surface of the surface N to be adhered to the adhesion target surface M excluding the surface inside the opening hole 11.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION The viscous structure according to each typical embodiment of the present invention will be described in detail below. FIG.
~ Fig. 3 shows the strong viscous structure A according to the first embodiment, Fig. 4 ~.
FIG. 6 shows a strong viscous structure A according to the second embodiment, and FIGS. 7 to 9 show a strong viscous structure A according to the third embodiment.

First, the strong viscous structure A according to the first embodiment.
In FIG. 1, the adhesive layer 20 is provided on the surface N of the plastic foam material 10 forming the strong viscous structure A, and the surface of the adhesive layer 20 is covered with a release liner 30 in a sectional view. Shows. FIGS. 2 and 3 show various modes of specifically attaching the attachment B, in this example, the plastic sheet 41 to the attachment C by using the strong viscous structure A. In FIG. 2, the attachment B is in a state before the surface N of the plastic foam material 10 provided on the attachment B is attached to the adhesion target surface M of the attachment C, and in FIG. After the attachment object B attached to the target surface M is pressed against the adhesion object surface M of the attachment object C, the adhesion object surface M of the attachment object C is attached.
Release the pressure on the attachment B and attach the attachment B
The state in which the surface M is adhered to the sticking target surface M under the suction state and the sticking state is shown as a cross section of the main part.

Next, in the strong viscous structure A according to the second embodiment, FIG. 4 shows that the adhesive layer 2 is applied only to the surface N of the plastic foam material 10 constituting the strong viscous structure A.
0 is provided and the surface of the pressure-sensitive adhesive layer 20 is covered with a release liner 30 in a sectional view. Further, FIGS. 5 and 6 show various modes in which the strongly viscous structure A is used to specifically adhere the attachment B, in this example, the plastic sheet 41 to the attachment C. In FIG. 5, the state of the attachment B before attaching the surface N of the plastic foam material 10 provided on the attachment B to the adhesion target surface M of the attachment C is shown in FIG. The attachment object B attached to the adhesion target surface M is attached to the attachment object C.
Of the attachment object C, the attachment object B is released from the adhesion object surface M, and the attachment object B is attached to the adhesion object surface M of the attachment object C in a suction state and The state of being fixed under the adhesive state is shown as a cross section of each main part.

Further, the strong viscous structure A according to the third embodiment.
In FIG. 7, the surface N constituting the strong viscous structure A is formed by providing the adhesive layer 20 on both sides of the plastic foam material 10, and the surface of the adhesive layer 20 is covered with the release liner 30. The main part is shown in cross section. Also,
8 and 9 show the attachment B using the strong viscous structure A.
FIG. 8 shows various modes of specifically adhering to the attachment object C by using the plastic foam material 10. In FIG.
In FIG. 9, the state before adhering the other surface N to the one surface N of 0 and the other surface N to the attachment object C is adhered to the adhesion object surface M of the attachment object B in an attached state. After pressing the surface N of the other adhesive material layer 20 of 10 toward the adhesion target surface M of the attachment object C, the pressure of the attachment object B and the attachment object C on each adhesion object surface M is released. Then, a mode in which the attachment B is fixed to the attachment target C under the suction state and the adhesive state is shown as a cross section of the main part.

The strong viscous structure A according to this embodiment is opened in at least the surface N of the plastic foam material 10 which is provided with the adhesive material layer 20 and which is adhered to the adhesion target M of the plastic foam material 10. Hole 11
However, when the plastic foam material 11 is elastically restored after being compressed and deformed, the plastic foam material 11 has an adsorption function of adsorbing to the adhesion target surface M in a negative pressure state.

In the strong viscous structure A having such a structure, the adhesive function and the suction function simultaneously act on the mounting surface, and the objects to be mounted can be securely fixed to each other.

Further, in the strong viscous structure A having such a constitution, the suction surface of the plastic foam material 10,
In particular, the peripheral edge of the opening of the hole 11 is adhered to the adhesion target surface M by the adhesive, which enables the plastic foam material 10 to adhere to the adsorption surface of the hole 11 in an airtight state. .

Next, in the strong viscous structure A having the above-mentioned structure, the pressure-sensitive adhesive layer 20 has the surface N to be adhered to the surface M to be adhered.
Of the inside of the opening hole 11 in, or the opening hole 11 in the surface N adhered to the adhesion target surface M
Further, one of other typical embodiments is that the structure is provided so as to cover the surfaces other than the inner surface of the.

A strong viscous structure A having such a structure, in particular,
In the case where the entire inner surface of the hole 11 is covered with the pressure-sensitive adhesive layer 20, the airtightness of the hole 11 used for adsorption in the plastic foam material 10 is maintained even if the inside of the hole 11 is maintained. Can be promoted by the laminated pressure-sensitive adhesive layer 20.

Further, the viscous structure A constituted, especially the pores 1
In the case where the portion along the hole edge of No. 1 is covered with the pressure-sensitive adhesive layer 20, when the plastic foam material 10 is compressed with respect to the pressure-sensitive adhesive target surface M, the hole edge of the hole 11 is the pressure-sensitive adhesive target surface M. And functions to promote the adsorption function in the holes 11.

Furthermore, the viscous structure A constituted, in particular the pores 1,
Even if the pressure-sensitive adhesive layer 20 is provided on the surface N excluding the inside of the plastic foam material 10,
Is surely adhered to the object surface M to be adhered by the adhesive layer 20 on the surface N, and is surely adsorbed to the object surface M to be adhered due to the adsorption function of the hole 11, and in the plastic foam material 10. Elastic deformation is not hindered by the pressure-sensitive adhesive layer 20.

The strong viscous structure A is used as an attachment means for attaching the attachment B to the attachment object C by means of adhesion and suction. The strong viscous structure A used as such a means for attachment has, for example, a configuration in which a non-breathable base material 40 such as a polyethylene terephthalate sheet is already provided on one surface as the attachment B. Provided plastic sheet 4
1 is used as various display means, and can be used as a stopper. In addition, various objects are used as the attachment B and can be fixed to the attachment target C and used. The strong viscous structure A is the plastic foam material 10
And the plastic foam material 10, in particular, a pressure-sensitive adhesive layer 20 provided so as to cover the surface N to be adhered to the adhesion target surface M of the attachment target C.

The plastic foam material 10 constituting the strong viscous structure A is various plastic foam materials such as polyurethane foam material and polyethylene foam material,
In particular, it is possible to use various plastic foam materials that shrink with the pressing and elastically return to the state before the pressing when the pressing is released.

Here, the plastic foam material 10 constituting the strong viscous structure A has a hole 11 having a vacuum suction function on the surface N to be adhered to the adhesion target surface M of the attachment target C.
Is prepared as having a porous structure.

The hole 11 having such a vacuum suction function, together with the pressure-sensitive adhesive layer 20 to be described later, constitutes the hole 11 opened on this surface N as an independent hole closed by a portion other than this opening. Alternatively, the holes 11 open on the surface N are communicated with each other but not communicated with the surface other than the surface N together with the adhesive layer 20, and as a result, as a communication hole in an airtight state. While forming or connecting the holes 11 opened in the surface N to the holes provided on the inner side of the plastic foam material 10,
A configuration of any aspect, such as a case where the outer surface of the plastic foam material 10 is not communicated with the pressure-sensitive adhesive layer at the portion other than the opening portion on the surface N, and the airtight hole 11 is consequently formed. May be as.

Further, the hole 11 having such a suction function is
Along with the adhesive layer 20 provided in the plastic foam material 10, the surfaces other than the surface N adhered to the attachment object C have a non-ventilated structure, so that the holes 11 opened in the surface N On the other hand, a vacuum suction function for the adhesion target surface M may be provided.

As a means for providing an adsorbing function accompanying elastic recovery after compression with respect to the hole 11 opened in the surface N together with the adhesive layer 20 provided in the plastic foam material 10, for example, plastic Synthetic resin liquid is applied to the surface other than the surface N of the foam material 10, and the surface N
The other surface may be configured as a non-breathable resin coating surface.

Further, by covering the surfaces other than the surface N of the plastic foam material 10 with a non-breathable plastic sheet, a plastic film or the like, the holes 11 opened in the surface N of the plastic foam material 10 are covered. The adhesive layer 20 may be configured to provide the above-mentioned adsorption function.

Further, the above-mentioned plastic foam material 10
The holes 11 provided in the plastic foam material 1
In the case of the continuous hole extending inward from the surface N at 0, that is, the hole 11 provided in the so-called longitudinal open-cell plastic foam material 10, the surface on the side opposite to the surface N is the above-mentioned one. A method, for example, a synthetic resin coating layer may be used to close each opening on the surface, or a plastic film or a plastic sheet attached to the surface may be used to close each opening on the surface.

Further, the surface N of the plastic foam material 10
After the compression of the hole 11 is changed by covering the surface N or a part or the whole of the inside of each hole 11 opened on the surface N with the adhesive layer 20. The structure may be such that the vacuum suction function at the time of elastic recovery in (3) is effectively provided.

From this point of view, the plastic foam material 10 used here has a vacuum in the elastic recovery after the compression of the holes 11 is changed with respect to the holes 11 opened in the surface N according to the various aspects described above. It may be a foam of any aspect as long as it has a structure that brings about an adsorption function, for example, an open-cell type plastic foam material, a closed-cell type plastic foam material, and a closed-cell and open-cell type. Any form of foam material such as mixed type plastic foam material can be used.

In the plastic foam material 10 constituting the strong viscous structure A according to this embodiment, a vertical open cell type plastic foam material can be used as a typical plastic foam material 10.

The pressure-sensitive adhesive layer 20 provided on the plastic foam material 10, especially the surface N where the holes 11 are opened, is typically a solvent-type urethane-based pressure-sensitive adhesive or a solvent-type acrylic-based pressure-sensitive adhesive. Alternatively, an emulsion type vinyl acetate adhesive or the like can be used.

The pressure-sensitive adhesive layer 20 provided in the plastic foam material 10 can be formed by applying a relatively viscous pressure-sensitive adhesive to the surface N of the plastic foam material 10 by a roller coating method or the like. it can. Alternatively, with respect to the surface N of the plastic foam material 10, a pressure-sensitive adhesive having a relatively low viscosity is applied to all or part of the inside of the hole 11 in the plastic foam material 10 by a doctor knife coating method. It can be formed by applying to.

The adhesive layer 20 provided on the plastic foam material 10 is the plastic foam material 1
It is provided so as to cover one surface, both surfaces, or three or more surfaces.

The strong viscous structure A thus constructed is
The joint portion attached by the strong viscous structure A has a firm fastening state due to the vacuum suction function of the hole 11 associated with the elastic return of the compression members and the adhesive function of the adhesive layer 20 on the surface having the hole 11. Can be produced.

(1) Strong Viscosity Structure A According to First Embodiment First, the strong viscous structure A according to the first embodiment shown in FIGS. 1 to 3 will be described. The strong viscous structure A according to the first embodiment has a configuration in which a plastic sheet 41 such as a polyethylene terephthalate sheet is provided as an attachment B on one surface of the plastic foam material 10, and particularly the attachment B The plastic sheet 41 is used as the non-air-permeable base material 40 to provide a strong adsorption function to the strong viscous structure A.

In the strong viscous structure A according to the first embodiment, the plastic foam material 10, particularly the surface N on which the non-air-permeable base material 40 is not provided, corresponds to the plastic foam material 10. A hole 1 that produces a vacuum suction function when compressed and elastically restored when the compression is released.
1 has a configuration.

The holes 11 formed in the surface N of the plastic foam material 10 are crushed when the plastic foam material 10 is compressed, and the compression of the plastic foam material 10 is released.
The inflow of air from the outside into the hole 11 is blocked, and as a result, a negative pressure is generated inside the hole 11 as the plastic foam material 10 returns elastically.
It suffices that the surface M to be adhered, which is adhered to the opening of the hole 11, is sucked by the negative pressure generated on the surface of the hole 11. For example, if the hole 11 has such a function, the surface N is opened. The hole 11 may be configured as a closed cell type hole, or may be configured as a hole having any configuration, such as a continuous cell type hole or a mixed hole type of closed cell and continuous cell.

Further, the surface N adsorbed to the adhesion target surface M is
The holes 11 forming the surface N may be formed as a smooth surface, an uneven surface, or a curved surface as long as they can perform the above-described suction function.

An adhesive is applied to the surface N of the plastic foam material 10 having the plastic sheet 41 functioning as the non-air-permeable base material 40 as the attachment B.
For example, an acrylic pressure-sensitive adhesive or a urethane pressure-sensitive adhesive is prepared as one having an appropriate viscosity, and this is applied to form the strong viscous structure A.

In contrast to the structure of the strong viscous structure A formed by applying the adhesive to the surface N of the plastic foam material 10 having the holes 11 having the suction function, for example, the plastic having the holes 11 not having the vacuum suction function. The surface N of the foam material 10 is provided on the surface N by applying an adhesive such as an acrylic adhesive or a urethane adhesive on the surface N and forming the adhesive layer 20 on the surface N. The hole 11 may be configured as the hole 11 having a vacuum suction function.

The surface N of the plastic foam material 10
For the application of adhesives to
The adhesive layer 20 is prepared in a relatively viscous state and is applied to the surface N of the plastic foam material 10 in an adhesive state by roller coating.
It may be formed as. The pressure-sensitive adhesive applied to the surface N in an adhesive state provides a convenient pressure-sensitive adhesive surface to the surface N as the pressure-sensitive adhesive layer 20 configured on the surface N, and the surface N or this surface N With respect to the hole 11 opened in the surface N, the surface following the opening edge of the hole 11 opened in N or the adhesive applied in an adhesive state so as to cover the inner surface of the hole 11 , Can effectively bring the vacuum adsorption function.

In applying the adhesive to the surface N of the plastic foam material 10, the adhesive having a low viscosity is prepared, and the adhesive having a low viscosity is applied to the plastic foam by doctor knife coating. Apply to the surface N of the material 10 in an adhesive state,
The adhesive layer 20 may be formed on the surface N of the plastic foam material 10.

Plastic foam material 1 of such an adhesive
In the case of application to the surface 0 of 0, a constitution is applied in an adhesive state only to the surface portion of the surface N of the plastic foam material 10, and this is made to function as the adhesive layer 20 on the surface N of the plastic foam material 10. The surface N of the plastic foam material 10
Together with the holes 1 in the surface N of the plastic foam material 10
1, the adhesive may be applied in an adhesive state so as to cover all or part of the inside, and the adhesive may be configured to function as the adhesive layer 20 on the surface N of the plastic foam material 10. This adhesive layer 20 can provide a unique adhesive function to the surface N and an effective vacuum adsorption function to the holes 11 on the surface N.

In the strong viscous structure A thus constructed, a release liner 30 is attached to the surface of the adhesive layer 20 for the purpose of protecting the adhesive layer 20 in the strong viscous structure A. In the strong viscous structure A according to the present embodiment, the release liner 30 is peeled off from the surface N when the plastic sheet 41 is used for adhesion. The surface of the pressure-sensitive adhesive layer 20 on the surface N is exposed, and it is used by being adhered and adsorbed to the attachment target C.

In the strong viscous structure A thus constructed, the surface of the pressure-sensitive adhesive layer 20 is attached to the surface of the object to be attached C, particularly the surface M to be adhered, and the surface of the object to be attached B is attached. As a plastic sheet 41, in particular, in this illustrated example, by pressing from the surface side of the attachment B configured as the non-air-permeable base material 40 against the surface of the attachment target C. , The plastic foam material 10 forming the strong viscous structure A is deformed into a compressed state.

The plastic foam material 1 forming the strong viscous structure A by the pressing accompanied by the compressive deformation.
0, in particular, the portion of the hole 11 is crushed so that the hole 11
With the inside air pushed out, the surface N of the strong viscous structure A
It adheres to the attachment target surface M of the attachment target C in a close contact state.

In this state, the pressure on the plastic foam material 10 is released again, and the elastic return function of the plastic foam material 10 causes the plastic foam material 10 to swell to the pre-pressing state. As a result, the holes 11 that are in close contact with the surface M of the attachment target C are adsorbed to the viscous target surface M in a vacuum adsorption state.

From this point, the plastic foam material 10 attached to the adhesion target surface M of the attachment object C is adhered to the attachment object C by the adhesive layer 20 constituting the strong viscous structure A of the plastic foam material 10. While being adhered to the target surface M, the adhesive surface of the attachment target C to the adhesive target surface M is attracted so as to surely adhere to the adhesive target surface M by the suction function acting on the hole 11. , Functions to more reliably maintain the adhesive state on the adhesive surface.

In the strong viscous structure A according to this embodiment, the plastic sheet material 40 constituting the strong viscous structure A is provided with the plastic sheet 41 as the attachment B in advance. The non-breathable base material 40 is integrally provided, and the surface of the plastic sheet 41, which is the non-breathable base material 40, is attached to the attachment target C as the surface of various display means. is there.

The strong viscous structure A according to the above embodiment
Other various attachments B are prepared in place of the plastic sheet 41 in FIG.
By integrally providing the plastic foam material 10 constituting the above, the respective attachments B may be made to stick to the attachment target C and be adsorbed.

Further, when the plastic sheet 41 is provided so as to function only as the non-breathable base material 40, the attachment B prepared separately is attached to the plastic sheet 41 and prepared. Then, the attachment B is attached to the attachment C using the adhesive layer 20 of the plastic foam material 10 provided in the plastic sheet 41.
Alternatively, it may be configured to be viscous and adsorbed.

(2) Strong Viscous Structure A According to Second Embodiment Next, a strong viscous structure A according to a second embodiment shown in FIGS. 4 to 6 will be described. In the strong viscous structure A according to the second embodiment, the adhesive layer 20 is provided only on the surface N of the plastic foam material 10, that is, the surface portion of the surface N of the attachment object C that is adhered to the adhesion target surface M. The configuration other than that provided is the same as or substantially the same as that of the strong viscous structure A according to the first embodiment.

Therefore, the same or substantially the same components as those of the viscous structure A according to the first embodiment are designated by the same reference numerals, and the description thereof will be omitted.

In the strong viscous structure A according to the second embodiment, as in the strong viscous structure A according to the first embodiment, the adhesive layer 20 provided on the plastic foam material 10 is Unlike the plastic foam material 10 of the strong viscous structure A according to the first embodiment, the plastic foam material 10 of the plastic foam material 10 does not cover the inside of the hole 11 of the plastic foam material 10. The adhesive layer 20 is provided only on the contact surface of the attachment target C with respect to the adhesion target surface M.

As a result, each strong viscous structure A provided on the surface N of the plastic foam material 10 is attached to the attachment B, which is the plastic sheet 41 in this illustrated example, by using this strong viscous structure A. At the time of attaching to the object C, the adhesive layer 20 having the strong viscous structure A is adhered to the object to be adhered M of the object to be attached C, and the edge of the hole 11 is the object to be adhered to the object M of the object to be attached M. In the same manner as in the strong viscous structure A according to the first embodiment, the object C to be attached is viscously adsorbed to the attachment object C.

In the strong viscous structure A according to the second embodiment, the holes 11 in the plastic foam material 10 forming the strong viscous structure A have a vacuum suction function by themselves. It is as a configuration. That is, this second
In the strong viscous structure A according to the embodiment of the present invention, the pressure-sensitive adhesive layer 2
0 does not merely supplement the airtightness of the hole 11 and compliments the airtightness of the hole 11, and does not supplement the airtightness for configuring the hole 11 as a single independent hole. The hole 11 provided in N is itself configured to have airtightness having a vacuum suction function.

In the strong viscous structure A, as in the strong viscous structure A according to the first embodiment, the plastic sheet material 10 as the attachment B and the plastic foam material 10 are provided. By pressing the adhesive layer 20 on the surface N of the plastic foam material 10 against the adhesion target surface M of the attachment object C in a close contact state, the attachment object B is adhered to the attachment object C, and then, The attachment B is attached to the attachment object C by the pressure adhesion, and the attachment B is fixed to the attachment object C in the suction state by releasing the pressure.

(3) Strong Viscous Structure A According to Third Embodiment Next, a strong viscous structure A according to the third embodiment shown in FIGS. 7 to 9 will be described. In the strong viscous structure A according to the third embodiment, the plastic foam material 10 is provided on both surfaces of the plastic sheet 41 provided as the non-breathable base material 40, and the respective plastic foam materials 10 are provided. To the surfaces N, N of the strong viscous structure A according to the first embodiment, the same structure as that of the strong viscous structure A according to the first embodiment, or The configurations are substantially the same.

Therefore, the same or substantially the same components as those of the strong viscous structure A according to the first embodiment are designated by the same reference numerals, and the description thereof will be omitted.

In the strong viscous structure A according to this embodiment, the plastic sheet 41 made of polyethylene terephthalate resin or the like is used as the non-breathable base material 40, and the plastic sheet 41 which is the non-breathable base material 40. The same plastic foam materials 10 and 10 as in the strong viscous structure A according to the first embodiment are integrally provided and provided on both surfaces of the plastic sheet material 41. The strong viscous structure A according to the first embodiment is provided on the surface of each of the plastic foam materials 10 opposite to the mounting surface side of the plastic sheet material 41.
A strong viscous structure A similar to is provided.

Here, each strong viscous structure A provided on the surface N of the plastic foam material 10 is protected by the release liner 30 similarly to the above, and the strong viscous structure A is used to stop the attachments B from each other. Or the attachment B is used as a means for attaching the attachment B to the attachment object C. When the attachments B and B are fastened to each other by the strong viscous structure A, or when the attachment B is attached to the attachment object C, the surface of the pressure-sensitive adhesive layer 20 forming the strong viscous structure A is covered. The release liner 30 is peeled off, and the plastic foam material 10 forming the strong viscous structure A is removed in the same manner as in the strong viscous structure A according to the first embodiment.
Adhesive layer 20 in this plastic foam material 10
After the surface is once pressed to the surface of the attachment B or the adhesion target surface M of the attachment C in an adhesive state, the pressure is released and the plastic is applied to the attachment B or the attachment C. The foam material 10 is fixed in a viscous and adsorbed state.

Then, the release liner 30 covering the surface of the other adhesive layer 20 in the plastic foam material 10 is peeled off, and the exposed surface of the adhesive layer 20 is removed.
Adhering to the respective attachment target surfaces M of the attachment B to be attached to the attachment B or the attachment object C to which the attachment B is attached, and pressing the plastic foam material 10 in this adhesive state. Thus, it is possible to perform adhesion by the adhesive layer 20 on the plastic foam material 10 as well as fastening by the adsorption function of the holes 11.

The release liners 30 on both sides of the strong viscous structure A prepared above are removed, and the adhesive layers 20 on the respective surfaces of the respective strong viscous structures A are attached to the attachments, respectively. B and B are adhered to each other, or the attachment object C and the attachment object B are adhered to each other, and the strong viscous structure A is held by the attachment object B and the attachment object C, and then the attachment object B and the attachment object B are attached. By pressing the objects C and the like against each other, the strong viscous structure A, in particular, the plastic foam material 10 is compressed, and adsorption by the holes 11 in the plastic foam material 10 is caused by the attachment objects B, or It may be used so as to bring it between the attachment B and the attachment C.

[0066]

The strong viscous structure A according to the present invention has the above-mentioned characteristic constitution, in particular, the plastic foam material 10 is provided with the pressure-sensitive adhesive layer 20. Hole 11 opened on the surface N to be adhered
However, since the plastic foam material 10 is configured to have an adsorption function of adsorbing to the adhesion target surface M as the elastic return of the plastic foam material 10 after compression deformation, the adhesive function of the adhesive layer 20 and At the same time, the suction function of the holes 11 acts on the mounting surface of the mounting object B, and has a feature that the mounting object B can be reliably held in a fixed state.

Further, in the strong viscous structure A having such a structure, the adsorption surface of the plastic foam material 10,
In particular, since the periphery of the opening of the hole 11 is adhered to the adhesion target surface M by the adhesive, the hole 11 that provides the plastic foam material 10 with an adsorption function has good airtightness with respect to the adsorption surface. It has the feature of being adsorbed in a close contact state.

Next, in the strong viscous structure A having the above structure, the pressure-sensitive adhesive layer 20 is provided so as to cover the surface including the whole or part of the inside of the opening hole 11 in the surface N in contact with the surface M to be adhered. With the above structure, the urethane foam material 10 has a feature that the airtightness of the holes 11 used for adsorption is promoted by the pressure-sensitive adhesive layer 20 even inside the holes 11.

In any of the strong viscous structures A to be constructed, since the portion along the edge of the hole 11 is covered with the adhesive layer 20, the urethane foam for the surface M to be adhered is adhered. When the material 10 is compressed, the hole edge of the hole 11 surely adheres to the adhesion target surface M in a close contact state, and the hole edge in the hole 11 does not separate from the adhesion target surface M. It has the feature that the adsorption function in is reliably retained.

[Brief description of drawings]

FIG. 1 is an enlarged cross-sectional view of a main part of a state where a strong viscous structure A according to a first embodiment is provided with a release liner.

FIG. 2 is an enlarged cross-sectional view of a main part before the attachment object B is adhered to the attachment object C using the strong viscous structure A.

FIG. 3 is an enlarged cross-sectional view of a main part in a state where an attachment B is adhered to and attached to an attachment object C using the strong viscous structure A.

FIG. 4 is an enlarged cross-sectional view of a main portion of a state where a strong viscous structure A according to a second embodiment is provided with a release liner.

FIG. 5 is an enlarged cross-sectional view of a main part before the attachment object B is attached to the attachment object C using the strong viscous structure A.

FIG. 6 is an enlarged cross-sectional view of a main part of a state where the attachment object B is adhered to and adhered to the attachment object C using the strong viscous structure A.

FIG. 7 is an enlarged cross-sectional view of an essential part in a state where a strong viscous structure A according to a third embodiment is provided with a release liner.

FIG. 8 is an enlarged cross-sectional view of a main part before the attachment objects B are attached to each other or the attachment object B is attached to the attachment object C by using the strong viscous structure A.

FIG. 9 is an enlarged cross-sectional view of a main part in a state where the attachments B are attached to each other or the attachment B is attached to the attachment object C by using the strong viscous structure A.

[Explanation of symbols]

 A strong viscous structure B attachment object C attachment object M adhesion object surface N surface 10 plastic foam material 11 hole 20 adhesive layer 30 release liner 40 non-breathable base material 41 plastic sheet

Claims (2)

[Claims] 1. In a plastic foam material provided with an adhesive layer, a hole opened at least in a surface provided with an adhesive layer to be adhered to a surface to be adhered is for elastic recovery after compression deformation of the plastic foam material. Along with this, a strong viscous structure having an adsorption function of adsorbing to the surface to be adhered. 2. The pressure-sensitive adhesive layer excludes a surface including all or part of the inside of the opening hole on the surface sticking to the sticking target surface, or a surface inside the opening hole on the surface sticking to the sticking target surface. The strong viscous structure according to claim 1, wherein the strong viscous structure is provided so as to cover the surface.