JP4095792B2 - Adhesive tape roll - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an adhesive tape roll for cleaning formed by winding an adhesive surface on the front side, and more specifically, relates to an adhesive tape roll suitable for cleaning a surface to be cleaned such as a screen door which is easily deformed.
[0002]
[Prior art]
For example, dust such as debris and dust entangled in a carpet is difficult to remove even if it is sucked with a vacuum cleaner or the like. In such a case, the adhesive tape roll is convenient. FIG. 4 shows an example of an adhesive tape roll for cleaning.
[0003]
The pressure-sensitive adhesive tape roll 1 is a cylinder in which a pressure-sensitive adhesive tape 2 having one of a belt-like base material 21 formed as a pressure-sensitive adhesive surface 22 is wound in a spiral shape along a winding core 3 so that the pressure-sensitive adhesive surface 22 faces the front side. By rolling the adhesive surface 22 on the surface to be cleaned 4 such as a floor, it is possible to capture dust, dust, etc. on the surface to be cleaned 4 with the adhesive surface. A resin sheet 23 is attached to the other surface of the base material 21 in order to improve the reinforcing property and the peelability.
[0004]
In particular, recently, adhesive tape rolls for cleaning are not only used for carpets, but are provided with various properties according to various surfaces to be cleaned such as flooring floors and tatami mats. Some use resin sheets.
[0005]
By using a foamed resin sheet for the base material 21, an appropriate cushioning property is created in the adhesive tape 2 itself, and the adhesive tape roll 1 wound with this is relatively easily deformed, such as a sofa, a car seat, and a screen door. By pressing the adhesive surface 22 against the surface 21 and rolling it, the adhesive surface 22 can be fitted along the surface to be cleaned 21 and dust can be reliably captured.
[0006]
[Problems to be solved by the invention]
However, when the pressure-sensitive adhesive tape 2 having cushioning properties is used, the following problems occur. That is, as exaggeratedly shown in FIG. 4 , the adhesive tape 2 wound around the winding core 3 has weak bonding force between the adhesive tapes 2 at the cut surfaces at both ends, and the foam itself is the original at the end surface. Since the stress (restoration stress) for returning to the thickness is increased, the diameters of both ends are increased compared to the center, resulting in a so-called bobbin shape.
[0007]
Therefore, since the adhesive surface 21 facing the surface 4 to be cleaned is a concave curved surface, when pressed against the surface 4 to be cleaned, in extreme terms, only both ends contact the surface 4 to be cleaned, and the cleaning efficiency is the highest. A void was formed in the center of the good. Therefore, as a result, only the both end sides of the adhesive tape 2 were darkened, and the vicinity of the central portion was often in a clean state. This phenomenon is particularly noticeable when used for screen doors.
[0008]
In particular, many of this type of foamed adhesive tape uses a foamed sheet base material having a large number of closed cells, and since the base material itself is highly shaped and recoverable, the diameter of the end is more prominent. It was easy to appear.
[0009]
Accordingly, an object of the present invention is to also provide a pressure-sensitive adhesive tape roll which can use the entire adhesive face efficiently in a deformable surface to be cleaned, such as a net door.
[0010]
[Means for Solving the Problems]
To solve the above problems, the present onset Ming, an adhesive tape adhesive surface on one surface of a substrate made of a strip-shaped foam sheet is formed to have a cushioning property, winding as the adhesive surface facing the front side In the pressure-sensitive adhesive tape roll formed by wrapping multiple times along the core, the pressure-sensitive adhesive surface is formed so as to increase in thickness toward the center from both ends in the width direction with respect to the base material. It is characterized by being wound so that the diameter (outer diameter) becomes larger from both ends toward the center.
[0011]
According to this, the entire pressure-sensitive adhesive tape roll protrudes from the end of the roll to the center, so-called a drum shape, and the pressure-sensitive adhesive surface becomes a convex curved surface. The dust can be reliably captured by contacting the surface to be cleaned. This is particularly effective for a surface to be cleaned which is easily deformed, such as a screen door.
[0012]
More preferably, the substrate is made of a foam sheet having a large number of open cells. According to this, the number of windings per unit winding diameter can be set larger than that of the closed cell body while maintaining cushioning properties due to the flexibility (restorability) unique to open cells.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows (a) a front view and (b) a side view of an adhesive tape roll 10 according to an embodiment of the present invention, and FIG. 2 shows a cross-sectional view of the adhesive tape 2. .
[0014]
The pressure-sensitive adhesive tape roll 10 includes a pressure-sensitive adhesive tape 2 having a pressure-sensitive adhesive surface 22 on one surface of a base material 21 made of a belt-like sheet having a predetermined width, along a hollow core 3 so that the pressure-sensitive adhesive surface 21 is on the outside. The adhesive tape 2 is wound in a spiral shape so that the diameter (outer diameter) of the adhesive tape 2 increases from both ends toward the center.
[0015]
A plurality of cuts (not shown) are formed at predetermined intervals on the adhesive tape 2, and the new adhesive surface 21 is exposed on the surface by separating the used dirty adhesive surface 21. In the present invention, the structure, shape and position of the cut are not particularly limited, and are merely optional components.
[0016]
As shown in FIG. 2, the base material 21 is a foamed resin sheet obtained by foaming a synthetic resin such as polyethylene at a predetermined foaming rate, and a large number of cells are mixed inside the sheet. . On the other surface of the base material 21, a resin sheet 23 that functions as a release sheet for the reinforcing piece of the base material 21 and the adhesive surface 22 is integrally provided.
[0017]
The foamed cells are roughly classified into open cells and closed cells. In the present invention, open cells are more preferable. That is, by adopting an open cell body, the base material 21 has flexibility in addition to cushioning properties. Therefore, if the winding diameter is the same, the open cell has more windings than the closed cell. Can be set. Furthermore, the restoration rate (ratio of the restoration amount to the compression amount) is 98% or more, and the cushioning property in the outermost layer does not deteriorate.
[0018]
The pressure-sensitive adhesive surface 22 is made of, for example, an acrylic or synthetic rubber-based pressure-sensitive adhesive, and has a convex curved surface shape so that its thickness (thickness) gradually increases from both ends in the width direction to the center. Is provided.
[0019]
In this embodiment, the adhesive surface 22 does not necessarily have to be applied to the entire surface of the substrate 21, and may be applied in a streak shape, a lattice shape, or an island shape. When forming in the shape of a line or a lattice, it is only necessary that the cross section in the width direction has the convex curved surface described above. In the case of an island shape, it is only necessary to gradually increase the build-up amount of each adhesive from both ends to the center, and the tangent line connecting the vertices of each adhesive only needs to be a convex curved surface.
[0020]
Further, even if paper or a non-foamed resin sheet is used for the base material 21, it is possible to obtain both the above-described convex curved surface and elasticity (cushioning) characteristics by foaming the adhesive itself. is there. In this case, a foaming agent that is foamed by heat or the like is mixed in the adhesive, and after the mold formed on the concave curved surface is placed on the adhesive surface, the foaming agent inside the adhesive is foamed to obtain a convex curved surface. It is done.
[0021]
As shown in FIG. 3, if the adhesive tape 2 is wound along the winding core 3, the center of the roll rises from the end of the roll along the cross-sectional shape of the adhesive tape 2, and is so-called drum-shaped. The pressure-sensitive adhesive tape roll 10 formed in the above is obtained.
[0022]
The pressure-sensitive adhesive tape roll 10 formed in a drum shape is used by being pressed against the surface to be cleaned 4 such as a screen door, for example, and first comes into contact with the surface to be cleaned 4 from the central portion having the highest dust collection efficiency, and then on both sides. As the contact area increases, the dust collection efficiency can be reliably increased. In particular, it is suitable for a place where the surface to be cleaned 4 itself such as a screen door or a car seat is easily deformed.
[0023]
In the above-described embodiment, the surface to be cleaned 4 is enumerated as a screen door, a car seat or the like that exhibits the most effect, but any other surface to be cleaned such as a normal carpet, a tatami mat, or a flooring floor. You may use the adhesive tape roll of this invention for 4.
[0024]
【The invention's effect】
As described above, according to the present invention, the surface to be cleaned is formed by forming the pressure-sensitive adhesive tape roll so that the winding diameter of the pressure-sensitive adhesive tape increases from both ends toward the center with the axis of the winding core as the center. Since the contact surface (adhesive surface) of the adhesive tape becomes a convex curved surface and contact starts from the center, dust can be reliably collected even when used on a surface to be cleaned such as a screen door that is easily deformed.
[Brief description of the drawings]
1 (a) front view and (b) a side view of a pressure-sensitive adhesive tape roll according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view of the adhesive tape of the embodiment.
FIG. 3 is a cross-sectional view of the adhesive tape roll of the embodiment.
FIG. 4 is a cross-sectional view of a conventional adhesive tape roll.
[Explanation of symbols]
1,10,100 Adhesive tape roll 2,20 Adhesive tape 21 Base material 22 Adhesive surface 23 Resin sheet 3, 30 Roll core

Claims (2)

An adhesive tape roll in which an adhesive tape having an adhesive surface formed on one surface of a base material made of a band-shaped foam sheet having cushioning properties is wound in multiple directions along the winding core so that the adhesive surface faces the front side. In
The pressure-sensitive adhesive surface is formed so as to increase in thickness as it goes from the both ends in the width direction to the center with respect to the base material, and the winding diameter (outer diameter) of the pressure-sensitive adhesive tape increases from the both ends toward the center. The pressure-sensitive adhesive tape roll is wound so as to become. The pressure-sensitive adhesive tape roll according to claim 1, wherein the substrate comprises a foamed sheet having a large number of open cells.

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