JPH037373Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a double-sided adhesive binding sheet, and particularly to a double-sided adhesive binding sheet in which the adhesive portions on the front and back surfaces are formed as part of the sheet material.

[Conventional technology] Conventionally, double-sided adhesive tapes have been produced by applying a pressure-sensitive adhesive to the entire surface of both sides of a tape material, applying a double-sided release-treated tape to the adhesive part on the surface of the tape material, and winding this tape into a roll. is generally known.

[Problem that the invention attempts to solve]

However, this type of double-sided adhesive tape requires a peel-off tape that is not needed when in use.
A large amount of dust is generated during use, which is undesirable.Moreover, this release-treated tape has the problem of being extremely expensive since it is necessary to perform release treatment on both sides thereof.

In addition, this type of double-sided adhesive tape needs to be cut to the required length using a cutter or the like, but if you need a large number of pieces of the same length, you may not be able to prepare the cutting process and have to cut the exact dimensions. There is a problem that it is not easy to cut into pieces.

In addition, when the cut tape is attached to the required location, pressure-sensitive adhesive is applied to the entire surface of both sides of the tape, so there is a problem in that the pressure-sensitive adhesive sticks to the hands and makes the user feel uncomfortable.

The present invention was developed in view of the current situation, and it is possible to reduce costs by omitting release paper that is unnecessary during use, eliminates the need to cut the sheet during use, and uses pressure-sensitive adhesive when used. To provide a double-sided adhesive binding sheet that is less likely to stick to hands.

[Means for solving problems]

The object of the present invention is to apply a pressure-sensitive adhesive to a part of the surface of a sheet made of plastic film having a predetermined cut shape so as to remove at least a part of the periphery of the sheet to form a surface adhesive part. At the same time, a surface peeling part is formed in at least a part of the area other than the surface adhesive part, and on the back side of the sheet, a pressure sensitive adhesive is applied to a part corresponding to the surface peeling part, and at least a part of the periphery of the sheet is coated with a pressure sensitive adhesive. a back adhesive part is formed by applying the adhesive so as to remove the adhesive, a back peeling part is formed in a region corresponding to the front adhesive part, and the adhesive force due to the front adhesive part and the adhesive force due to the back adhesive part are different from each other. This is achieved by a double-sided adhesive binding sheet characterized in that a plurality of double-sided adhesive sheets are laminated with the peeling parts and adhesive parts on the front and back surfaces corresponding to each other.

[Effect]

The double-sided adhesive binding sheet according to the present invention has a plurality of laminated double-sided adhesive sheets cut in advance into a predetermined shape, so there is no need to cut the sheets before use, making the work easier, and ensuring that the sheet has a fixed size shape. What you get, and each double-sided adhesive sheet is
Since the peeling parts and the adhesive parts on the front and back sides are laminated in correspondence, there is no need to arrange double-sided release paper between the upper and lower double-sided adhesive sheets, and the cost can be reduced accordingly.

Furthermore, since the front adhesive part and the back adhesive part are formed on a part of the sheet material, there is little risk that the pressure-sensitive adhesive will adhere to hands during use.

Furthermore, there is a difference in adhesive strength between the front adhesive part and the back adhesive part, and since the sheet material is made of plastic film, two adherends can be used, which is a common usage of double-sided adhesive sheets. When adhering to each other, an extremely useful effect can be obtained in practice.

In other words, when adhering a poster, memo paper, etc. to a wall surface, mount, etc., the adhesive sheet is first adhered to the wall surface with its strong adhesive back side, and then the poster, etc. is adhered to the less adhesive surface. ,
It becomes easier to replace posters and the like later, and there is no possibility of scratches or stains on the wall surface. This protective effect on walls, etc. is particularly remarkable when the sheet is made of a transparent material. Further, if the sheet is formed of a material having an easily peelable surface such as polyethylene film, the peeling process itself using silicon or the like for forming the peeling portion can be omitted.

(Example) The present invention will be described below with reference to FIGS. 1 to 4. Figures 1 to 3 are explanatory diagrams showing the basic aspects and functions of the present invention, respectively.
Figures a and b are explanatory diagrams showing the front and back surfaces of a sheet in an embodiment of the present invention, respectively.

In FIGS. 1 and 2, 1 is a double-sided adhesive binding sheet, and this binding sheet 1 is attached to the back cover 2.
It is comprised of a cover 2 formed by connecting a and a top lid 2b via a connecting part 2c, and a plurality of double-sided adhesive sheets 3 laminated on the back lid 2a of this cover 2.

The cover 2 is made of, for example, a rectangular piece of cardboard that is curved in the center to form a connecting part 2c, and both ends thereof are formed as a back cover 2a and a top cover 2b, and the two ends of the cover 2a and 2b are connected to each other. Both sides are coated with silicone or the like to form peeling parts 4a and 4b.
are provided for each.

Each of the double-sided adhesive sheets 3 is formed by cutting, for example, strong soft paper into a rectangular shape, as shown in FIGS. 1 and 3a and 3b. As shown in the figure, a band-shaped surface adhesive part 5 formed by applying a pressure-sensitive adhesive and a band-shaped surface peeling part 6 formed by applying silicone or the like have a narrow interval 7 therebetween. Multiple strips are arranged alternately in the upper and lower directions. At the lower edge of the surface of the double-sided pressure-sensitive adhesive sheet 3 in FIG. 3a, as shown in FIGS. is provided.

On the other hand, on the back side of each double-sided adhesive sheet 3, as shown in FIG. There is a strip-shaped back peeling part formed by applying silicone etc., with a narrow interval 1 between them.
1, and a plurality of strips are arranged alternately in the vertical direction in the figure, and the back adhesive part 9 is provided at a position corresponding to the front peeling part 6, and the back peeling part 10 is provided at a position corresponding to the front adhesive part 5, respectively. Also, the back adhesive part 9 is formed to be slightly narrower than the front peeling part 6, and the back peeling part 10 is formed to be slightly wider than the front adhesive part 5. Further, on the lower edge of the back surface of the double-sided adhesive sheet 3 in FIG. 3b, there is an untreated gripping portion 12 in which neither the back adhesive portion 9 nor the back peeling portion 10 is disposed, as shown in FIGS. 1 and 3b. It is provided corresponding to the gripping part 8. Further, both the bonded parts 5 and 9 are set to have the same area.

Each double-sided adhesive sheet 3 configured in this way is
The back adhesive part 9 of the upper double-sided adhesive sheet 3 is connected to the upper peeling part 6 of the lower double-sided adhesive sheet 3, and the back peeling part 10 of the upper double-sided adhesive sheet 3 is connected to the upper adhesive part of the lower double-sided adhesive sheet 3. 5 are laminated in a state corresponding to each other, and an integrated laminate 13 is constructed by the adhesion between them. Further, this laminate 13 is attached to both lids 2a and 2 of the cover 2.
By disposing it between
and the back cover 2a are integrated, and the laminate 13 and the upper cover 2b are integrated by the surface adhesive portion 5 of the double-sided adhesive sheet 3 located at the uppermost end.

Next, the effect will be explained.

When manufacturing the binding sheet 1, first, a thick rectangular paper is pressed at the center in the longitudinal direction, and a cover 2 is produced which integrally has back covers 2a and 2b on both sides of the paper through a connecting part 2c. do. Then, silicon or the like is applied to the inner surface of each lid 2a, 2b to form peeling portions 4a, 4b, respectively. Note that the peeling parts 4a and 4b may be formed before cutting the paper material into a rectangular shape or before pressing the rectangular paper, and separate release paper may be formed on each of the lids 2a and 2b. It may also be formed by adhering it to the inner surface of.

Next, the required number of double-sided adhesive sheets 3 are laminated and bound together by the adhesive force between the adhesive parts 5, 9 and the peeling parts 6, 10 to form a laminate 13, which is attached to the back cover of the cover 2. At the same time, the upper cover 2b is closed to the back cover 2a side to form the binding sheet 1 shown in FIG. 2.

At this time, the peeling parts 6, 10 of the double-sided adhesive sheet 3 correspond to the adhesive parts 5, 9, and the peeling parts 6, 10 correspond to the adhesive parts 5, 9.
Since the adhesive parts 5 and 9 are formed wider than the adhesive parts 5 and 9, even if a slight positional shift occurs when laminating the double-sided adhesive sheets 3, the adhesive parts 5 and 9 will be connected to the peeling parts 6 and 9.
It never goes beyond 10.

When using the binding sheet 1 manufactured in this way, for example, to attach a picture to a wall surface, first open the top lid 2b, grasp the gripping parts 8 and 12, and peel off the double-sided adhesive sheet 3 at the uppermost end. and paste this on the back of the painting. At this time, whether the front side of the double-sided adhesive sheet 3 is attached to the painting or the back side of the double-sided adhesive sheet 3 is attached to the painting, the peeling parts 6, 1
If you press the part 0, there will be adhesive part 5 on the back side.
9 is compatible, sufficient adhesion force can be obtained.
Therefore, even if the release paper is not attached to one side of the double-sided pressure-sensitive adhesive sheet 3, there is no problem during use.

After the double-sided adhesive sheet 3 is attached to the back side of the painting in this way, the painting is attached to the wall via the double-sided adhesive sheet 3.

By matching the adhesive parts 5, 9 and the peeling parts 6, 10 of the double-sided pressure-sensitive adhesive sheet 3, it is possible to stack the upper and lower double-sided sheets 3 without interposing a release paper between them, and the peeling Even if there is no paper, there is no problem when using it. Moreover, since the front adhesive part 5 and the back adhesive part 9 are formed in the same area using a pressure sensitive adhesive having the same adhesive strength, they can be used in the same manner as a conventional double-sided adhesive sheet.

Further, since the double-sided adhesive sheet 3 is cut into a predetermined shape in advance, unlike conventional double-sided adhesive sheets, there is no need to use a cutter or the like to cut the double-sided adhesive sheet, and a sheet of constant size can always be obtained.

In an embodiment of the present invention based on the above-mentioned basic form, the adhesive strength of the two adhesive parts 5 and 9 of the double-sided adhesive sheet is made different between the front and back sides of the sheet, for example, the back adhesive part 9 is stronger than the front adhesive part 5. The adhesive force is increased.

Such a difference in adhesive strength can be caused, for example, by making the adhesive strength of the pressure-sensitive adhesive itself different between the front and back adhesive parts, or by making the application area of a pressure-sensitive adhesive with the same adhesive strength different between the front and back sides. You can get it by twisting it.

Figures 4a and 4b show an embodiment of the present invention, in which a double-sided adhesive sheet 23 is used in which the areas of the adhesive portions on the front side and the back side are different from each other, and both adhesive portions have the same adhesive force. Even when formed by applying a pressure-sensitive adhesive, there is a difference between the adhesive strength of the entire front surface and the adhesive strength of the entire back surface.

That is, on the surface of this double-sided adhesive sheet 23, as shown in FIG. A surface release agent 26 formed by applying silicone or the like is disposed on the remaining portion excluding the grip portion 8 on the lower edge 25 and the lower edge.

Further, on the back side of the double-sided adhesive sheet 23, as shown in FIG. The peeling part 30 is
It is formed into a circular shape with a diameter slightly larger than that of the surface adhesive portion 25, and is designed to tolerate some positional deviation during lamination. Further, as shown in FIG. 4b, a pressure-sensitive adhesive having the same adhesive strength as the surface adhesive part 25 is applied to the remaining parts of the back side of the double-sided adhesive sheet 23, excluding the back peeling part 30 and the grip part 12 at the lower end. A back adhesive portion 29 is provided.

For other points, see Figures 1 to 3 above.
It has exactly the same configuration as shown in the figure.

Since the back adhesive part 9 is formed in the remaining part of the front adhesive part 25 excluding the back peeling part 30 and the gripping part 12, even if a pressure sensitive adhesive having the same adhesive strength is applied, A difference can be provided between the adhesive strength of the entire surface and the adhesive strength of the entire back surface.

In this embodiment, various plastic films are used as the material for the double-sided adhesive sheet 23. In particular, when the double-sided adhesive sheet 3 is formed using a transparent plastic film, the peeling parts 6, 1
Although the silicon applied to 0, 26, and 30 lowers the transparency to some extent, it still provides enough transparency to confirm the characters on the back side. Therefore, when using this sheet to affix a business card onto a transparent mount, for example, it is convenient to be able to check the contents written on the back side of the business card from the back side of the transparent mount. When a plastic film having an easily peelable surface such as polyethylene film is used as the material for the double-sided adhesive sheets 3, 23, it is not necessarily necessary to apply silicone to the peeling parts 6, 10, 26, 30, and the film surface You can leave it as is. Therefore, in this case, better transparency can be obtained. However, the adhesive parts 5, 9,
It is necessary to apply corona discharge machining to roughen the portions 25 and 29 so that the adhesive force of the pressure sensitive adhesive is higher than that of the peeling portions 6, 10, 26, and 30. When performing corona discharge machining, the transparency remains the same as before machining, and when roughening the surface, pressure-sensitive adhesive is filled into the irregularities to create a flat surface, so silicone must be applied. Better transparency can be obtained.

Further, in the embodiment, double-sided adhesive sheets 3, 23
Although the gripping portions 8 and 12 are provided only on the lower edge of the gripper, they may be provided over the entire peripheral edge, or the gripping portions 8 and 12 may be omitted if necessary.

In both of the above embodiments, the binding force from the laminate 13 is applied to the adhesive parts 5, 9, 25, 29 and the peeling parts 6, 1.
Although the explanation has been given on the adhesive force obtained with adhesive strength between 0.0, 26.0, and 30.0, it is also possible to bind with adhesive.

[Effect of idea]

As explained above, the present invention applies a pressure-sensitive adhesive to a part of the surface of a sheet material having a predetermined cut shape to form a surface adhesive part, and at least part of the part other than the surface adhesive part. A surface peeling part is formed in the part, and a pressure sensitive adhesive is applied to the back side of the sheet material at a part corresponding to the surface peeling part to form a back adhesive part, and a part corresponding to the front adhesive part is formed. A double-sided adhesive sheet is formed by forming an adhesive part on the back side, and multiple sheets of this double-sided adhesive sheet are laminated with the peeling part and the adhesive part on the front and back sides corresponding to each other. As there is no need to cut the material each time it is used, the work is easy, and a product of a fixed size can always be obtained.

In addition, since the peeling part and adhesive part of each laminated double-sided adhesive sheet correspond to each other on the front and back sides, there is no need to place release paper between the upper and lower double-sided adhesive sheets, which can reduce costs accordingly. . For example, if you press the surface peeling part, the back adhesive part is located on the back side, so you can easily attach the double-sided adhesive sheet to the adhesive surface, and it can be used even without release paper. No problems occur at times.

Furthermore, since the adhesive portions on the front and back surfaces are formed as part of the sheet material, there is little risk that the pressure-sensitive adhesive will adhere to hands during use.

[Brief explanation of the drawing]

Figure 1 is a perspective view of the binding sheet showing the basic form of the present invention, Figure 2 is a side view of the binding sheet with the cover closed, and Figure 3a shows the structure of the surface of the double-sided adhesive sheet. Detailed view, Figure b is a detailed view showing the configuration of the same back side, Figure 4a is a view corresponding to Figure 3a showing an embodiment of the present invention, Figure b is a similar view corresponding to Figure 3b. be. 1... binding sheet, 3, 23... double-sided adhesive sheet, 5, 25... surface adhesive part, 6, 26... surface peeling part, 8, 12... gripping part, 9, 29... back adhesive part, 10, 30... Back peeling part, 13... Laminated body.

Claims (1)

[Scope of utility model registration request] The object of the present invention is to apply a pressure-sensitive adhesive to a part of the surface of a sheet made of plastic film having a predetermined cut shape so as to remove at least a part of the periphery of the sheet to form a surface adhesive part. At the same time, a surface peeling part is formed in at least a part of the area other than the surface adhesive part, and on the back side of the sheet, a pressure sensitive adhesive is applied to a part corresponding to the surface peeling part, and at least a part of the periphery of the sheet is coated with a pressure sensitive adhesive. a back adhesive part is formed by applying the adhesive so as to remove the adhesive, a back peeling part is formed in a region corresponding to the front adhesive part, and the adhesive force due to the front adhesive part and the adhesive force due to the back adhesive part are different from each other. A double-sided adhesive binding sheet characterized in that a plurality of these double-sided adhesive sheets are laminated with corresponding peeling parts and adhesive parts on the front and back sides.