JPH051262A - Self-adhesive tape - Google Patents

Abstract

(57) [Summary] (Correction) [Purpose] To provide an adhesive tape which can easily release a release paper attached to an adhesive layer. A pressure-sensitive adhesive tape comprising a main body made of an elastic material and a release paper releasably attached to the main body with an adhesive, the release paper having a perforated line.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an adhesive tape, and more particularly to an adhesive tape made of an elastic material.

[0002]

2. Description of the Related Art A pressure-sensitive adhesive tape has a lower surface coated with a pressure-sensitive adhesive and is adhered to an adherend for various purposes. For example, there are so-called cellophane tapes for fixing two objects close to each other, and those that are attached for cosmetic purposes such as wallpaper.

Among these, some of them are attached to the wall surface of a house or a reactor for the purpose of heat insulation or heat retention. This has a thick main body part to have a heat insulating property, and an adhesive is applied to it. Of course, from the ease of handling,
Release paper is attached to the adhesive layer. Further, usually, the thick main body portion often has an air layer, and non-woven fabric or foamed plastic is generally used.

[0004]

Such an adhesive tape is used by peeling off the release paper at the time of adhering it to the construction surface, but this peeling is a difficult and time-consuming operation. This is because the release paper is in close contact with the adhesive layer, has the same size, and has no clue. This is remarkable when the main body is made of felt or the like and has a fuzz. That is, when the peeling paper is to be peeled off, the lower main body portion also expands together.

If this peeling takes time and labor, not only it will take time, but also the main body portion may be wrinkled due to the peeling, so that the main body portion may be damaged or deformed.

Therefore, in order to prevent these, there have been devised ones in which the release paper is wider than the main body portion, and one in which only the release paper is cut. However, in the former case, the material for the release paper is wasted, and in the latter case, it is not possible to use a material having a thick main body. Because after attaching the release paper,
It is difficult to cut only the release paper of a thick elastic material because of its lack of flatness and the soft base.

Further, a method of cutting the release paper first and adhering it to the main body can be considered, but it is difficult to cover the entire adhesive surface and not polymerize the release paper with this method.

Further, in the method of cutting release paper, when a long adhesive tape is used, the release paper is intermittent,
Must be peeled many times. This is also a laborious task.

Therefore, there has been a demand in the industry for a thick adhesive tape that does not have the above-mentioned drawbacks.

[0010]

In view of the above circumstances, the present inventor has completed the pressure-sensitive adhesive tape of the present invention as a result of diligent research, and is characterized in that the main body portion made of an elastic material is used. And a release liner which is releasably attached to the main body portion by an adhesive, and is characterized in that a perforation line is formed on the release liner.

Here, the main body portion is a portion that exerts the function of the adhesive tape itself, and for example, if it is attached for the purpose of imparting heat insulating property, it means the portion having the heat insulating property. This body is made of an elastic material. The elastic material is a non-woven fabric, a woven fabric, a knitted fabric, a foamed body, or the like, and there are various types depending on its use. The thickness is not particularly limited, but is about 1 mm to several cm due to the difficulty of cutting. This is because thinner than this has flatness, and if it is more than this, there is no problem even if the main body is cut to some extent, and therefore cutting after the release paper is attached is possible, although difficult. The main body referred to in the present invention may be a normal thick adhesive tape.

The pressure-sensitive adhesive is also a usual one, including all that can be used as a pressure-sensitive adhesive tape, and the release paper is not limited to a particular material and may be a usual one.

The feature of the present invention resides in that the conventional release paper is provided with a ruled sewing machine, and other points may be the same as those of the conventional one. Here, the perforation rule means a discontinuous cutting line. The method of construction may be any method such as passing a roller having a gear-shaped cutting blade therethrough, or piercing the release paper with a large number of needles.

This is because it is possible to cut the release paper after it has been attached, although it is difficult. The main body referred to in the present invention may be a normal thick adhesive tape.

The pressure-sensitive adhesive is also a usual one, including all that can be used as a pressure-sensitive adhesive tape, and the release paper is not limited to a particular material and may be a usual one.

A feature of the present invention is that a conventional release paper is provided with a perforated line, and other points may be the same as the conventional one. Here, the perforation rule means a discontinuous cutting line. The method of construction may be any method such as passing a roller having a gear-shaped cutting blade therethrough, or piercing the release paper with a large number of needles.

In short, it suffices to be able to make breaks intermittently. The sewing ruled line may be linear or curved. In addition, the width of the sewing machine ruled line (how many centimeters the sewing machine ruled line is inserted) and the like are appropriately determined depending on the size of the adhesive tape, the application, and the like. When a sewing machine ruled, the adhesive part returns to its original position by the self-holding force, and the elastic body part is hardly affected, but the release paper is cut reliably at the specified pitch, so only the release paper Can be cut to the extent that it can be easily cut when used.
In addition, since it is not cut with a cutter or the like, even a very soft object can be sufficiently installed.

Further, it is difficult to assemble the stamped product by peeling it off on a line and attaching it, because if the peeling is troublesome, the line will stop or the speed will be reduced. Exerts a great effect.

[0019]

EXAMPLES Next, the method of the present invention will be described in more detail based on examples. FIG. 1 is a perspective view showing an adhesive tape 1 of the present invention. A release paper 4 is attached to the felt main body 2 with an adhesive 3 interposed therebetween. A sewing ruled line 5 is provided at the center of the release paper 4. When using, first pull the release paper 4 left and right from the part of the sewing rule 5,
Cut and peel from the part. Then, the main body is attached to the portion to be adhered by the exposed adhesive. As described above, the position of the sewing rule is preferably at the central portion, but it may be at the end portion.

Further, if the release paper 4 is not only pulled to the left and right, but the main body is bent as shown in FIG. 2, the release paper 4 above it can be easily cut. The adhesive layer and the main body are
It has elasticity to some extent, and it does not break because it expands and contracts.

[0021]

The adhesive tape of the present invention has the following advantages. It is easy to manufacture, and the manufacturing cost can be greatly reduced as compared with the conventional methods such as enlarging the release paper or cutting only the release paper. By simply pulling the release paper at the position of the ruled line on the sewing machine, the release paper can be easily cut and the release paper can be easily peeled from the end portion. Since it can be easily peeled off, the main body is not damaged or deformed. Although it was difficult with the cutting method, in the present invention, it is also easy to put the perforations on the release paper first and then to attach it to the main body.

[Brief description of drawings]

FIG. 1 is a perspective view showing an example of an adhesive tape of the present invention.

FIG. 2 is a cross-sectional view showing a usage state of the example shown in FIG.

[Explanation of symbols]

 1 Adhesive tape 2 Main body 3 Adhesive 4 Release paper 5 Sewing rule

Claims (1)

Claim: What is claimed is: 1. A main body made of an elastic material and a release paper releasably attached to the main body with an adhesive. An adhesive tape characterized in that