JP2003153846A - Tacky adhesive tape roll - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tacky adhesive tape roll which makes the entire part of a tacky adhesive surface efficiently usable at a surface to be cleaned, such as a screen door which is liable to be deformed. SOLUTION: A tacky adhesive tape 2 having the tacky adhesive surface 21 formed in such a manner that its thickness increases from both ends in the transverse direction of a base material 21 toward the center is wound along a winding core 3, by which the tacky adhesive roll 10 is formed to a drum shape.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an adhesive tape roll for cleaning in which an adhesive surface is wound on the front side, and more specifically, it is suitable for cleaning easily deformable surfaces such as screen doors. Regarding adhesive tape rolls.

[0002]

2. Description of the Related Art For example, dust such as hair dust and dust entangled in a carpet is difficult to remove even if sucked with a vacuum cleaner. In such a case, the adhesive tape roll is convenient. FIG. 5 shows an example of an adhesive tape roll for cleaning.

This adhesive tape roll 1 comprises a strip-shaped base material 2
1 is a cylindrical roll body in which a pressure-sensitive adhesive tape 2 having one side as a pressure-sensitive adhesive surface 22 is spirally wound along a winding core 3 so that the pressure-sensitive adhesive surface 22 faces the front side, and a surface to be cleaned such as a floor Four
By rolling the adhesive surface 22 on the upper surface, dust, dust, and the like on the surface to be cleaned 4 can be captured by the adhesive surface. Base material 21
A resin sheet 23 for enhancing the reinforcing property and the peeling property is attached to the other surface of the.

In particular, recently, adhesive tape rolls for cleaning are not only used for carpets but also have various properties according to various surfaces to be cleaned such as flooring and tatami mats. There is a 21 in which a foamed resin sheet is used.

By using a foamed resin sheet as the base material 21, the adhesive tape 2 itself has a proper cushioning property, and the adhesive tape roll 1 wound around it is relatively deformed such as a sofa, a car seat, or a screen door. By pressing the adhesive surface 22 against the easily cleaned 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]

However, when the adhesive tape 2 having the cushioning property is used, the following problems occur. That is, as exaggeratedly shown in FIG. 5, the adhesive tape 2 wound around the winding core 3 in multiple layers has a weak bonding force between the adhesive tapes 2 at the cut surfaces at both ends, and the foam itself has its original end surface. Since the stress (restoring stress) for returning to the thickness becomes stronger, the diameters at both ends expand compared to the center, resulting in a so-called bobbin shape.

Therefore, since the adhesive surface 21 facing the surface to be cleaned 4 is a concave curved surface, when pressed against the surface to be cleaned 4, in extreme terms, only both ends contact the surface to be cleaned 4, A void was formed in the central part where the cleaning efficiency was the highest. Therefore, as a result, the adhesive tape 2 was darkened only on both end sides, and the central portion of the adhesive tape 2 was often kept clean. Especially when used for screen doors, the phenomenon becomes remarkable.

In particular, most of the foamed adhesive tapes of this type use a foamed sheet base material having a large number of closed cells, and since the base material itself has high formability and restoration property, the diameter expansion of the end portion is large. It was more likely to appear.

Therefore, the present invention has been made to solve the above-mentioned problems, and an object thereof is an adhesive tape roll which can efficiently use the entire adhesive surface even on a surface to be cleaned which is easily deformed such as a screen door. To provide.

[0010]

In order to solve the above-mentioned problems, the present invention has an adhesive surface formed on one surface of a base material made of a foamed sheet in the form of a sheet having a cushioning property, and the adhesive surface faces the front side. In an adhesive tape roll formed by winding multiple windings along a winding core so as to face, the winding diameter (outer diameter) of the adhesive tape becomes larger from the both ends toward the center around the axis of the winding core. It is characterized by being wound around.

According to this, the entire pressure-sensitive adhesive tape roll has a so-called drum shape protruding from the roll end to the center, and the pressure-sensitive adhesive surface has a convex curved surface. By contacting the surface to be cleaned toward the side, dust can be reliably captured. In particular, it is effective for cleaning surfaces such as screen doors that are easily deformed.

As a concrete mode of forming the central portion into a convex curved surface, the pressure-sensitive adhesive surface may be formed such that the thickness increases with respect to the base material from both ends in the width direction toward the center. According to this, by forming the adhesive tape itself in a convex curved surface shape in advance, it is formed in a drum shape when wound in multiple layers.

Alternatively, the winding core may be formed so as to have a larger diameter from both ends centering on the axis thereof toward the center. According to this, a winding drum previously formed in a drum shape is formed. A convex curved surface is formed by winding the adhesive tape multiple times along it.

More preferably, the base material is a foamed sheet having a large number of open cells. According to this, it is possible to set a larger number of windings per unit winding diameter than that of the closed cell body while maintaining the cushioning property due to the flexibility (restorability) peculiar to the open cells.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows a front view and a side view of an adhesive tape roll 10 according to an embodiment of the present invention, and FIG. 2 shows a sectional view of the adhesive tape 2.

This adhesive tape roll 10 comprises an adhesive tape 2 having an adhesive surface 22 on one surface of a base material 21 made of a band-shaped sheet having a predetermined width, and a hollow winding core 3 with the adhesive surface 21 facing outward. The adhesive tape 2 is wound so as to be wound in a spiral shape in multiple layers, and the winding diameter (outer diameter) of the pressure-sensitive adhesive tape 2 increases toward the center from both ends.

The adhesive tape 2 is provided with a plurality of cuts (not shown) at predetermined intervals, and a 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 constituents.

As shown in FIG. 2, a foamed resin sheet obtained by foaming a synthetic resin such as polyethylene at a predetermined foaming ratio is used as the base material 21, and inside the sheet,
Many bubbles are mixed. On the other surface of the base material 21, a reinforcing sheet of the base material 21 and a resin sheet 23 functioning as release paper for the adhesive surface 22 are integrally provided.

The foamed cells are roughly classified into open cells and closed cells, but in the present invention, the open cells are more preferable. That is, by adopting the open-cell body, the base material 21 has flexibility in addition to the cushioning property. Therefore, if the winding diameter is the same, the number of windings of the open-cell is larger than that of the closed-cell. Can be set. Furthermore, the restoration ratio (the ratio of the restoration amount to the compression amount) is 98% or more, and the cushioning property in the outermost layer does not deteriorate.

The adhesive surface 22 is made of, for example, an acrylic or synthetic rubber adhesive, so that the thickness (wall thickness) of the base material 21 gradually increases from both ends in the width direction to the central portion. It is provided in a convex curved shape.

In this embodiment, the adhesive surface 22 does not necessarily have to be applied to the entire surface of the base material 21, and may be applied in the form of stripes, lattices, or islands. When the adhesive is formed in a stripe shape or a lattice shape, the cross section in the width direction may have the convex curved surface described above. In the case of the island shape, the build-up amount of each adhesive from the both ends to the center may be gradually increased, and the tangent line connecting the vertices of each adhesive may be a convex curved surface.

Even if paper or a non-foamed resin sheet is used as the base material 21, it is possible to obtain both the above-mentioned convex curved surface and elasticity (cushioning property) by foaming the adhesive itself. Is also possible. In this case, a convex curved surface is obtained by mixing a foaming agent that foams due to heat into the adhesive, covering the adhesive surface with a mold formed on the concave curved surface, and then foaming the foaming agent inside the adhesive. To be

As shown in FIG. 3, if this adhesive tape 2 is wound up along the winding core 3, the roll center is raised more than the roll end portion along the cross-sectional shape of the adhesive tape 2, and is wound up. The adhesive tape roll 10 formed in a so-called drum shape is obtained.

The drum-shaped adhesive tape roll 10 is pressed against the surface to be cleaned 4 such as a screen door to be used, so that the central portion having the highest dust collecting efficiency comes into contact with the surface to be cleaned 4, Then, the contact area increases toward both sides, so that the dust collection efficiency can be reliably increased. Particularly, 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.

As another method of forming the pressure-sensitive adhesive tape roll into a drum shape, there is also the following mode. That is, as shown in FIG. 4, the pressure-sensitive adhesive tape roll 100 is characterized in that the pressure-sensitive adhesive tape 20 is an ordinary flat tape and the winding core 30 is wound around it.

In this embodiment, the winding core 30 is not a straight cylindrical body but is formed so that its outer diameter increases from both ends toward the center. According to this, even if the general flat adhesive tape 20 is wound, it can be formed in a drum shape with a raised central portion. Such an aspect is also included in the present invention.

In the above embodiment, the surface to be cleaned 4 is
Although screen doors and car seats are listed as the ones that exert the most effect, other than this, even if the adhesive tape roll of the present invention is used on any surface to be cleaned 4 such as ordinary carpet, tatami mat or flooring. Good.

The present invention has been described above with reference to specific embodiments, but the pressure-sensitive adhesive tape roll 1 which is the basic embodiment of the present invention.
As long as the outer diameter of 0,100 increases from both ends toward the central portion and is formed in a so-called drum shape, other modifications that may be considered are naturally included in the present invention.

[0029]

As described above, according to the present invention,
By forming the adhesive tape roll so that the winding diameter of the adhesive tape increases from both ends toward the center around the axis of the winding core, the contact surface (adhesive surface) of the adhesive tape to the surface to be cleaned is convex. Since it becomes a curved surface and the contact is started from the central portion, dust can be reliably collected even when it is used on a surface to be cleaned which is easily deformed such as a screen door.

[Brief description of drawings]

FIG. 1 is a front view and a side view of an adhesive tape roll according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view of the adhesive tape of the above embodiment.

FIG. 3 is a cross-sectional view of the adhesive tape roll of the above embodiment.

FIG. 4 is a cross-sectional view showing a modified example of the adhesive tape roll.

FIG. 5 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 winding core 4 Cleaning surface

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Naomi Kawaguchi             Hanacho Building, 7-16-7 Ginza, Chuo-ku, Tokyo               Nitoms Co., Ltd. F-term (reference) 4J004 AB01 CB04 CC02 EA01 FA10

Claims (4)

[Claims] 1. An adhesive tape comprising an adhesive surface formed on one surface of a base material made of a foamed sheet having a cushioning property, and the adhesive tape being wound along a winding core so that the adhesive surface faces the front side. In the roll, the adhesive tape roll is wound such that the winding diameter (outer diameter) of the adhesive tape becomes larger from both ends toward the center. 2. The pressure-sensitive adhesive tape roll according to claim 1, wherein the pressure-sensitive adhesive surface is formed such that the thickness increases with respect to the base material from both ends in the width direction toward the center. 3. The pressure-sensitive adhesive tape roll according to claim 1, wherein the winding core is formed such that the outer diameter increases from both ends toward the center around the axis of the winding core. 4. The pressure-sensitive adhesive tape roll according to claim 1, wherein the substrate is a foamed sheet having a large number of open cells.