JP6935861B2 - Adhesive member - Google Patents

Description

The present invention relates to a sticking member, for example, a sticking member having an arbitrary shape such as a sheet shape or a panel shape used by sticking to the surface of wallpaper in a room.

Conventionally, various sheet materials such as paper, cellophane, synthetic resin film, and foamed resin have been used as the base material layer for the sticking member, and a self-adhesive resin layer has been provided on the back surface side of the base material layer. The one provided is widely used.

By the way, the conventional sticking member is roughly classified into the following.
(1) A self-adhesive resin layer is provided on the back surface side of a base material layer made of a sheet material having almost no elasticity. (2) Self-adhesiveness is provided on the back surface side of a base material layer made of a closed-cell foamed resin sheet material. Those provided with a resin layer (3) Those provided with a self-adhesive resin layer on the back surface side of a base material layer made of a sheet material of open-cell foamed resin.

The conventional sticking member has the following characteristics.
The sticking member of (1) corresponds to a general adhesive tape or the like, but if the surface to be stuck has irregularities, it is difficult to fit, and since the base material layer has almost no elasticity, for example, wallpaper. When the surface to be attached is made of a weak member, the peeling force of the base material layer tends to act on the surface to be attached via the self-adhesive resin layer at the time of peeling, and the surface to be attached is destroyed. And pollution is likely to occur.
The sticking member of (2) has some cushioning property (flexibility) and has an advantage that it is easy to fit even if the sticking surface has irregularities, but on the other hand, if the sticking surface has no irregularities, the adhesive strength Is too strong and the base material layer breaks when peeling off, and the surface to be attached is likely to be contaminated. If the surface is uneven, it will easily come off.)
The sticking member of (3) has an advantage that it is easy to fit even if the sticking surface has large irregularities, but when pressure is applied during sticking, the resin of the self-adhesive resin layer becomes an open cell foamed resin. It may enter the inside of the base material layer made of the above material, which deforms the surface of the base material and at the same time deforms the adhesive surface, so that the adhesive force is lowered.

An object of the present invention is to provide a sticking member having all of the following characteristics in view of the problems of the conventional sticking member.
-Easy to fit even if the surface to be attached is uneven.
-Even if the surface to be attached is made of a weak member such as wallpaper, or if the surface to be attached is not uneven and the adhesive strength is strong, it can be peeled off smoothly without any problem, and the surface to be attached is destroyed or contaminated. Does not occur.
-The sticking and peeling can be repeated, and even in that case, the shape of the sticking member is not easily deformed.

In order to achieve the above object, the sticking member of the first invention is provided on a base material layer made of either an open-cell foamed resin having elasticity and resin impregnation and a non-woven fabric, and on the back surface side of the base material layer. A resin that maintains elasticity in a state of being impregnated and cured over a predetermined thickness from the interface between the provided self-adhesive resin layer and the self-adhesive resin layer of the base material layer, and the surface of the base material layer. It is characterized by including a non-stretchable surface-side base material layer and a self-adhesive resin layer provided in order on the side.

Further, in order to achieve the same object, the sticking member of the second invention has a base material layer made of a foamed resin having elasticity and elasticity, and flexibility and flexibility provided in order on the back surface side of the base material layer. It is characterized by including a synthetic resin layer and a self-adhesive resin layer having elasticity, and a non-stretchable surface-side base material layer and a self-adhesive resin layer which are sequentially laminated on the surface side of the base material layer. ..

In this case, a protective layer made of a transparent material may be provided on the surface side of the self-adhesive resin layer on the surface side of the base material layer.

Further, the surface of the self-adhesive resin layer provided on the surface layer side of the surface-side base material layer can be made of an uneven surface.

According to the sticking members of the first and second inventions, it is possible to provide a sticking member having all the following characteristics.
-A base material layer made of either open-cell foamed resin or non-woven fabric having elasticity (in-plane and thickness direction) and resin impregnation, and foaming having elasticity (in-plane and thickness direction) and elasticity. Since a base material layer made of resin is used, it is easy to fit even if the surface to be attached has irregularities.
-The stretchable base material layer (in the plane and in the thickness direction) deforms when peeled off, and acts so that the adhesive surface of the self-adhesive resin layer gradually peels off, so it is attached like wallpaper. Even if the surface to be attached is made of a weak member or the surface to be attached is not uneven and the adhesive force is strong, the surface can be peeled off smoothly without any problem, and the surface to be attached is not destroyed or contaminated.
-A resin that maintains elasticity provided over a predetermined thickness from the interface of the base material layer with the self-adhesive resin layer, or a synthetic resin layer that has flexibility and elasticity provided on the back surface side of the base material layer. Prevents the resin of the self-adhesive resin layer from entering the inside of the base material layer and reducing the adhesive force due to the application of pressure during sticking, and when peeling off by the non-stretchable surface side base material layer In addition to being able to prevent the sticking member from being deformed, the sticking and peeling can be repeated.

Further, by providing a protective layer made of a transparent material on the surface side of the self-adhesive resin layer on the surface side of the base material layer, the self-adhesive resin layer and the transparent material on the surface side of the base material layer are provided. A bulletin board such as a photograph can be arranged between the protective layer and the protective layer to be used as a bulletin board panel or the like.

Further, by making the surface of the self-adhesive resin layer provided on the surface layer side of the surface-side base material layer composed of an uneven surface, air fluidity is ensured at the interface of the self-adhesive resin layer, and air is provided. It is possible to prevent a lump from forming and deteriorating the appearance.

It is sectional drawing which shows 1st Example of the sticking member of this invention. It is sectional drawing which shows the 2nd Example of the sticking member of this invention. It is sectional drawing which shows 3rd Example of the sticking member of this invention.

Hereinafter, embodiments of the sticking member of the present invention will be described with reference to the drawings.

FIG. 1 shows a first embodiment of the sticking member of the present invention.
This sticking member includes a base material layer 1A having elasticity and resin impregnation property, and a self-adhesive resin layer 2 provided on the back surface side of the base material layer 1A, and the self-adhesiveness of the base material layer 1A. A resin 3A that maintains elasticity in a state of being impregnated and cured over a predetermined thickness from the interface with the resin layer 2 is provided, and a non-stretchable surface side that is sequentially provided on the surface side of the base material layer 1A. It includes a base material layer 5 and a self-adhesive resin layer 8.
The back surface side of the self-adhesive resin layer 2 (and the front surface side of the self-adhesive resin layer 8) is a release layer 4 (self-adhesive resin layer) made of a release paper, a release film, or the like, if necessary. The release layer on the surface side of No. 8 may be provided (not shown).

In this case, the base material layer 1A is preferably either an open-cell foamed resin layer or a non-woven fabric having elasticity (in a plane and in the thickness direction), particularly having sufficient elasticity in the thickness direction. Can be used for.
Of these, the open-cell foamed resin layer is an open-cell foam made of a polyolefin such as polyethylene or polypropylene having a thickness of 0.5 to 20 mm, preferably 2 to 5 mm, or a synthetic resin such as polyurethane, polyvinyl chloride, polyimide or acrylic. It can be composed of a sex foam resin.
Further, as the non-woven fabric, a felt-like non-woven fabric can be preferably used.

Further, for the self-adhesive resin layers 2 and 8, any of the elastomers and the pressure-sensitive adhesives, which are conventionally widely used in this type of sticking member, can be preferably used.
Of these, as the elastomers, rubber-based or synthetic resin-based elastomers such as rubber-based, urethane-based, olefin-based, styrene-based, vinyl chloride-based, and amide-based elastomers can be preferably used.
Further, as the pressure-sensitive adhesives, synthetic resin-based or rubber-based pressure-sensitive adhesives such as acrylic-based, urethane-based, silicone-based, rubber-based, and synthetic rubber-based adhesives can be preferably used.

The surface of the self-adhesive resin layer 8 (if necessary, the self-adhesive resin layer 2) is preferably an uneven surface (embossed shape or linear shape).
Specifically, the surface side surface of the surface layer 7 provided on the surface side of the surface side base material layer 5 is formed as an uneven surface (embossed shape or linear shape), and the surface of the self-adhesive resin layer 8 is an uneven surface. As shown in another embodiment (FIG. 2) described later, the self-adhesive resin layer 8 is formed on a flat surface so as to have an embossed shape or a linear blank portion. Only the surface of the layer 8 can be an uneven surface.
As a result, the fluidity of air can be ensured at the interface of the self-adhesive resin layer 8 (if necessary, the self-adhesive resin layer 2), and it is possible to prevent an air pool from forming and deteriorating the appearance.

Here, a synthetic resin sheet such as a closed-cell foamed resin sheet can be used for the surface layer 7.
Further, when the base material layer 1A and the surface side base material layer 5 and the surface side base material layer 5 and the surface layer 7 are laminated, they can be laminated via an appropriate adhesive layer 6 if necessary. ..

As the resin 3A to be impregnated from the interface of the base material layer 1A with the self-adhesive resin layer 2 over a predetermined thickness, a synthetic resin that maintains elasticity in a cured state is used.
Here, as the resin 3A, a synthetic resin of the same type as the self-adhesive resin layer 2 can be used, but unlike the self-adhesive resin layer 2, even if pressure is applied when the attachment member is attached, the base is formed. Use a material having a hardness that does not allow it to enter the inside of the material layer 1A, and at the same time, use a thickness that can prevent the self-adhesive resin layer 2 from entering the inside of the base material layer 1A. Specifically, the base material layer 1A is impregnated with a thickness of 0.05 to 2 mm, preferably 0.1 to 1 mm.
Specifically, the resin 3A is an acrylic-based or urethane-based two-component curable resin, a silicone-based resin, a urethane-based moisture-curable resin, an adhesive-based solvent evaporation-curable resin, a polyester acrylate-based resin, or an epoxy-based resin. , UV curable resins such as urethane acrylates, thermoplastic resins such as olefins, urethanes and vinyl chlorides, and thermoplastic elastomas can be preferably used.
Here, for example, when a two-component curable resin is used for the resin 3A and the self-adhesive resin layer 2, it is necessary to set the degree of cross-linking of the resin used for the resin 3A to be larger than that of the self-adhesive resin layer 2. It is possible to have a characteristic (the hardness of the resin 3A is increased by several times the hardness of the self-adhesive resin layer 2 while maintaining the elasticity).

As a method of impregnating the base material layer 1A with the resin 3A, for example, in the case of a thermoplastic resin or a thermoplastic elastomer, a direct coating method using an extruder is used according to the properties of the resin 3A to obtain a liquid resin. In the case of, the roll coating method, gravure coating method, bar coating method, knife coating method, etc. are used in combination with the transfer method. In the case of ultraviolet curable resin, the same method is used, and after transfer, ultraviolet rays are irradiated. By doing so, the resin 3A can be impregnated into the base material layer 1A and cured.

Further, as a method of forming the self-adhesive resin layer 2 on the base material layer 1A impregnated with the resin 3A and cured, the same method as that of the resin 3A may be used according to the properties of the self-adhesive resin layer 2. can.

The non-stretchable surface-side base material layer 5 provided on the surface side of the base material layer 1A is non-stretchable and flexible on the surface side of the base material layer 1A via an adhesive layer 6, if necessary. It is a stack of non-elastic or non-stretchable / non-flexible layers.
As a result, the elasticity of the base material layer 1A in the vertical and horizontal directions is limited, but the elasticity in the thickness direction is not affected. As a result, when the adhesive member is peeled off, the adhesive surface of the self-adhesive resin layer 2 is gradually peeled off while suppressing excessive deformation of the elastic base material layer 1A on the side where these layers are laminated. Even if the surface to be attached is made of a weak member such as wallpaper, or if the surface to be attached is not uneven and the adhesive strength is strong, it can be peeled off more smoothly and without problems. It is possible to prevent the surface to be adhered from being destroyed or contaminated.
In this case, the non-stretchable / flexible material constituting the surface-side base material layer 5 includes a synthetic resin sheet (including a sheet material of closed-cell foamed resin), thick paper, a thick cloth, a rubber plate, and the like. Thin metal boards, thin wooden boards, thin cork boards, etc. can be used, and thick synthetic resin boards, thick metal boards, thick wooden boards, thick wooden boards, etc. can be used as non-stretchable / non-flexible materials. A certain cork board, stone plate (decorative marble stone plate), glass plate (including composite material) and the like can be used, and further, these materials can be laminated and used.

Since this sticking member has the above-mentioned basic form, it is possible to provide a sticking member having all of the following characteristics.
-When the base material layer 1A has elasticity (in the plane and in the thickness direction) and resin impregnation property, specifically, since an open cell foamed resin or a non-woven fabric is used, the surface to be attached has irregularities. But it is easy to fit.
-Since the base material layer 1A having elasticity (in the plane and in the thickness direction) acts so as to gradually peel off the adhesive surface by the self-adhesive resin layer 2 while deforming when peeling off, like wallpaper. Even when the surface to be attached is made of a weak member or when the surface to be attached is not uneven and the adhesive force is strong, it can be peeled off smoothly without any problem, and the surface to be attached is not destroyed or contaminated.
-The resin 3A that maintains elasticity provided over a predetermined thickness from the interface of the base material layer 1A with the self-adhesive resin layer 2 is applied to the self-adhesive resin layer 2 by applying pressure when the base material layer 1A is attached. The non-stretchable surface-side base material layer 5 prevents the resin from entering the inside of the base material layer 1A made of open-cell foamed resin or non-woven fabric and lowering the adhesive force, and the adhesive member is deformed when peeled off. Coupled with the fact that it is possible to prevent this from happening, it is possible to repeatedly attach and detach.

By the way, this sticking member can be used for various purposes by taking the following forms.

FIG. 2 shows a second embodiment of the sticking member of the present invention.
In the sticking member of the first embodiment shown in FIG. 1, the resin 3A that maintains elasticity in a state of being impregnated and cured over a predetermined thickness from the interface of the base material layer 1A with the self-adhesive resin layer 2. However, instead of this resin 3A, a synthetic resin layer 3B having flexibility and elasticity can be provided.
In this case, the synthetic resin layer 3B contains a polyolefin such as low-density polyethylene having a thickness of 0.01 to 0.1 mm, preferably 0.02 to 0.05 mm, a polyurethane, an ethylene-vinyl acetate copolymer resin, and polyvinyl chloride. In addition to a film layer made of synthetic resin such as vinyl or elastomer, a coating layer (film layer) and polyethylene, polyvinyl chloride, acrylic, etc., which have a high density of about 5 to 25 times and have a film, 0.5 to It can be composed of a synthetic resin foam sheet having a thickness of 4 mm, preferably 0.5 to 2 mm.
Further, the foamed resin layer constituting the base material layer 1B is a foamed resin having elasticity (in a plane and in the thickness direction) and elasticity, more specifically, 0.5 to 20 mm, preferably 2 to 2. It can be composed of an open-cell foamed resin or a closed-cell foamed resin having a thickness of 5 mm and made of a polyolefin such as polyethylene or polypropylene, or a synthetic resin such as polyurethane, polyvinyl chloride, polyimide or acrylic.

Since this sticking member has the above-mentioned basic form, it is possible to provide a sticking member having all of the following characteristics.
-Since the base material layer 1B uses a foamed resin having elasticity (in the plane and in the thickness direction) and elasticity, it is easy to fit even if the surface to be attached has irregularities.
-Since the base material layer 1B having elasticity (in the plane and in the thickness direction) acts so as to gradually peel off the adhesive surface by the self-adhesive resin layer 2 while deforming when peeling off, like wallpaper. Even when the surface to be attached is made of a weak member or when the surface to be attached is not uneven and the adhesive force is strong, it can be peeled off smoothly without any problem, and the surface to be attached is not destroyed or contaminated.
-The resin of the self-adhesive resin layer 2 is put inside the base material layer 1B by applying pressure when the synthetic resin layer 3B having flexibility and elasticity provided on the back surface side of the base material layer 1B is attached. Repeated sticking and peeling, in combination with the fact that the non-stretchable surface-side base material layer 5 can prevent the sticking member from being deformed at the time of peeling by preventing it from entering and lowering the adhesive force. Can be done.
The other configurations and operations of the sticking member of the present embodiment are the same as those of the sticking member of the first embodiment.

FIG. 3 shows a third embodiment of the sticking member of the present invention.
In the sticking members of the first embodiment shown in FIG. 1 and the second embodiment shown in FIG. 2, a bulletin board such as a photograph is arranged on the self-adhesive resin layer 8 on the surface side of the base material layers 1A and 1B. As shown in FIG. 3, a protective layer 9 made of a transparent material is provided on the surface side of the self-adhesive resin layer 8 on the surface side of the base material layers 1A and 1B. It can also be provided.
As a result, a bulletin board such as a photograph can be arranged between the self-adhesive resin layer 8 on the surface side of the base material layers 1A and 1B and the protective layer 9 made of a transparent material, and can be used as a bulletin board panel or the like. ..
In this case, the protective layer 9 made of a transparent material includes a sheet or plate material made of synthetic resin such as acrylic, polyester, polypropylene, vinyl chloride, or a glass plate (including a composite material), depending on the use of the sticking member. ) Can be used.
The other configurations and operations of the sticking member of this embodiment are the same as those of the sticking members of the first and second embodiments.

Next, a more specific embodiment of the sticking member of the present invention will be shown.

[Example 1 (see FIG. 1)]
Base material layer 1A: Open-cell foamed polyurethane (thickness 5 mm)
Self-adhesive resin layer 2: Made by Lion Specialty Chemicals, AS-665 (removable adhesive) (trade name), Coronate L (crosslinking agent) (trade name)
Resin 3A that maintains elasticity: Takelac A-950 and Takenate A-4 (urethane resin) manufactured by Mitsui Chemicals, Inc. (trade name)
Release layer 4: Release paper, release film, etc. Surface side base material layer 5: MDF plate material (medium density fiberboard) (thickness 2.5 mm)
Adhesive layer 6: Adhesive surface layer 7: Polyethylene foam (thickness 2 mm, surface embossed)
Self-adhesive resin layer 8: Same as self-adhesive resin layer 2

[Example 2 (see FIG. 2A)]
Base material layer 1B: Closed-cell foamed polyethylene (thickness 3 mm) (manufactured by Sekisui Chemical Co., Ltd., Softlon 3003 (trade name))
Self-adhesive resin layer 2: Made by Lion Specialty Chemicals, AS-665 (removable adhesive) (trade name), Coronate L (crosslinking agent) (trade name)
Flexible and stretchable synthetic resin layer 3B: Low density polyethylene film (thickness 0.03 mm) (Prime Polymer Co., Ltd., Evolu SP2520 (trade name))
Release layer 4: Release paper, release film, etc. Surface side base material layer 5: Polyethylene foam (thickness 2 mm) is laminated on both sides with a polyester film (thickness 0.03 mm) (non-stretchable) Adhesive layer 6 : Adhesive self-adhesive resin layer 8: Same as self-adhesive resin layer 2 (formed linearly)

[Example 3 (see FIG. 2B)]
Base material layer 1B: Closed-cell foamed polyethylene (thickness 3 mm) (manufactured by Sekisui Chemical Co., Ltd., Softlon 3003 (trade name))
Self-adhesive resin layer 2: Made by Lion Specialty Chemicals, AS-665 (removable adhesive) (trade name), Coronate L (crosslinking agent) (trade name)
Flexible and stretchable synthetic resin layer 3B: Low density polyethylene film (thickness 0.03 mm) (Prime Polymer Co., Ltd., Evolu SP2520 (trade name))
Release layer 4: Release paper, release film, etc. Surface side base material layer 5: Polyester film (thickness 0.1 mm) (non-stretchable)
Adhesive layer 6: Adhesive self-adhesive resin layer 8: Same as self-adhesive resin layer 2 (formed linearly)

[Example 4 (see FIG. 3 (a))]
Base material layer 1A: Open-cell foamed polyurethane (thickness 5 mm)
Self-adhesive resin layer 2: Made by Lion Specialty Chemicals, AS-665 (removable adhesive) (trade name), Coronate L (crosslinking agent) (trade name)
Resin 3A that maintains elasticity: Takelac A-950 and Takenate A-4 (urethane resin) manufactured by Mitsui Chemicals, Inc. (trade name)
Release layer 4: Release paper, release film, etc. Surface side base material layer 5: MDF plate material (medium density fiberboard) (thickness 2.5 mm)
Adhesive layer 6: Adhesive surface layer 7: Polyethylene foam (thickness 2 mm, surface embossed)
Self-adhesive resin layer 8: Same as self-adhesive resin layer 2 Protective layer 9: Polyester film (thickness 0.1 mm)

[Example 5 (see FIG. 3 (b))]
Base material layer 1B: Closed-cell foamed polyethylene (thickness 3 mm) (manufactured by Sekisui Chemical Co., Ltd., Softlon 3003 (trade name))
Self-adhesive resin layer 2: Made by Lion Specialty Chemicals, AS-665 (removable adhesive) (trade name), Coronate L (crosslinking agent) (trade name)
Flexible and stretchable synthetic resin layer 3B: Low density polyethylene film (thickness 0.03 mm) (Prime Polymer Co., Ltd., Evolu SP2520 (trade name))
Release layer 4: Release paper, release film, etc. Surface side base material layer 5: Polyethylene foam (thickness 2 mm) is laminated on both sides with a polyester film (thickness 0.03 mm) (non-stretchable) Adhesive layer 6 : Adhesive self-adhesive resin layer 8: Same as self-adhesive resin layer 2 (formed linearly)
Protective layer 9: Polyester film (thickness 0.1 mm)

[Example 6 (see FIG. 3 (c))]
Base material layer 1B: Closed-cell foamed polyethylene (thickness 3 mm) (manufactured by Sekisui Chemical Co., Ltd., Softlon 3003 (trade name))
Self-adhesive resin layer 2: Made by Lion Specialty Chemicals, AS-665 (removable adhesive) (trade name), Coronate L (crosslinking agent) (trade name)
Flexible and stretchable synthetic resin layer 3B: Low density polyethylene film (thickness 0.03 mm) (Prime Polymer Co., Ltd., Evolu SP2520 (trade name))
Release layer 4: Release paper, release film, etc. Surface side base material layer 5: Polyester film (thickness 0.1 mm) (non-stretchable)
Adhesive layer 6: Adhesive self-adhesive resin layer 8: Same as self-adhesive resin layer 2 (formed linearly)
Protective layer 9: Polyester film (thickness 0.1 mm)

Although the sticking member of the present invention has been described above based on a plurality of examples, the present invention is not limited to the configurations described in the above examples, and the configurations described in the respective examples may be combined as appropriate. , The configuration can be changed as appropriate within the range that does not deviate from the purpose.

The sticking member of the present invention is not broken or contaminated on the sticking surface, can be peeled off smoothly without any problem, and can be re-sticked. Therefore, for example, the sticking member can be stuck on the surface of an indoor wallpaper. It can be suitably used for a sticking member having an arbitrary shape such as a tape shape, a sheet shape, and a panel shape used for wearing, and can be widely used for various sticking members.

1A Base material layer 1B Base material layer 2 Self-adhesive resin layer 3A Resin that maintains elasticity 3B Synthetic resin layer with flexibility and elasticity 4 Release layer 5 Surface side base material layer 6 Adhesive layer 7 Surface layer 8 Self Adhesive resin layer 9 Protective layer

Claims (4)

A base material layer made of a foamed resin having a thickness of 0.5 to 20 mm having elasticity and elasticity that deforms when the sticking member is peeled off , and a sticking member provided in order on the back surface side of the base material layer. A synthetic resin layer and a self-adhesive resin layer made of a non-foamed resin having a thickness of 0.01 to 0.1 mm having flexibility and elasticity that deform when peeled off were laminated in order on the surface side of the base material layer. , A sticking member comprising a non-stretchable surface-side base material layer and a self-adhesive resin layer that function to prevent the sticking member from being deformed when the sticking member is peeled off. A base material layer made of a foamed resin having a thickness of 0.5 to 20 mm having elasticity and elasticity that deforms when the sticking member is peeled off , and a sticking member provided in order on the back surface side of the base material layer. A synthetic resin layer and a self-adhesive resin layer made of a foamed resin having a thickness of 0.5 to 4 mm and a foaming ratio of 5 to 25 times, which have flexibility and elasticity to be deformed when peeled off, and the surface of the base material layer. It is characterized by including a non-stretchable surface-side base material layer and a self-adhesive resin layer, which are laminated in order on the side and function to prevent the sticking member from being deformed when the sticking member is peeled off. Adhesive member to be attached. The sticking member according to claim 1 or 2, wherein a protective layer made of a transparent material is provided on the surface side of the self-adhesive resin layer on the surface side of the base material layer. The sticking member according to claim 1, 2 or 3, wherein the surface of the self-adhesive resin layer provided on the surface layer side of the surface-side base material layer is composed of an uneven surface.

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