JPH0673140U - Roll adhesive tape - Google Patents

Abstract

(57) [Summary] [Object] To provide a roll-shaped pressure-sensitive adhesive tape which has better operability during sticking work than the conventional roll-shaped pressure-sensitive adhesive tape having a separator. [Structure] A roll-shaped pressure-sensitive adhesive tape comprising a pressure-sensitive adhesive tape having a pressure-sensitive adhesive layer 2 on at least one surface of a support 1, and a separator 3 covering and protecting the surface of the pressure-sensitive adhesive layer 2, and wound in a roll shape. Means 4 that can be cut to a predetermined length are formed at different positions on the adhesive tape and the separator. As the means 4, perforations and continuous cuts are provided.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a roll-type pressure-sensitive adhesive tape, and more particularly to a roll-type pressure-sensitive adhesive tape in which means for cutting the pressure-sensitive adhesive tape and a separator into predetermined lengths are provided in advance to improve the workability of application.

[0002]

[Prior art]

 Conventionally, a plastic film such as polyethylene, polypropylene, polyacetate, soft vinyl chloride, paper, non-woven fabric, cotton cloth, etc. is used as a support, and an adhesive layer made of rubber resin or acrylic resin is formed on one side Many adhesive tapes are known. In addition, such an adhesive tape needs to cover and protect the surface of the adhesive layer until it is used, and as a method for that, a method of laminating a separator on the surface of the adhesive layer or a back surface of a support without using a separator is used. That is, there is a method of forming a so-called roll-shaped pressure-sensitive adhesive tape in which a surface opposite to the surface on which the pressure-sensitive adhesive layer is formed is subjected to a peeling treatment such as coating with a release agent and wound around an appropriate core material.

Roll-shaped pressure-sensitive adhesive tapes, which are wound without using the above-mentioned separator, are also commercially available, which are wound with the separators laminated. Usually, in the case of roll-shaped adhesive tape, a separator is not particularly required if the support does not expand when the adhesive tape is rewound during use, but the size of the adhesive tape will be larger if the adhesive tape remarkably grows when rewound. It is preferable to stack separators in order to maintain the thickness (width, length, thickness, etc.).

However, in a roll-shaped adhesive tape in which separators are simply laminated as shown in FIG. 4, an operation of cutting at least a predetermined length when used, an operation of peeling and removing the separator from the surface of the adhesive layer, It is necessary to attach the adhesive tape to the surface of the adherend, which makes the attaching work extremely complicated.

[0005]

[Problems to be solved by the device]

 The present invention is intended to improve the sticking workability of the roll-shaped pressure-sensitive adhesive tape, particularly the roll-shaped pressure-sensitive adhesive tape obtained by laminating the separator on the surface of the pressure-sensitive adhesive layer. Moreover, it provides a roll-shaped pressure-sensitive adhesive tape which is extremely easy to apply to an adherend.

[0006]

[Means for Solving the Problems]

 Therefore, as a result of repeated studies to achieve the above-mentioned object, the inventors of the present invention have found that the adhesive workability can be improved by providing a device such as a slit that can be cut to a predetermined length at different positions of the adhesive tape and the separator. The inventors have found that the above problem is improved and have devised the present invention.

That is, according to the present invention, the surface of the pressure-sensitive adhesive layer of the pressure-sensitive adhesive tape having the pressure-sensitive adhesive layer on at least one side of the support is covered and protected by the separator, and the pressure-sensitive adhesive tape and the separator can be cut to a predetermined length. The present invention provides a roll-shaped pressure-sensitive adhesive tape in which various means are formed at different positions and wound in a roll shape.

Further, the roll-shaped adhesive tape of the present invention is a continuous or intermittent cut of the cuttable means, and such cutable means has the same length of the adhesive tape and the separator. It is preferable to form such a structure.

[0009]

【Example】

 Examples of the roll-shaped pressure-sensitive adhesive tape according to the present invention will be shown below, which will be described more specifically.

FIG. 1 is a side view showing an embodiment of the roll-shaped adhesive tape of the present invention, and FIG. 2 is an enlarged vertical cross-sectional view of a portion of the roll-shaped adhesive tape A of FIG. The part surrounded by the chain line). As shown in FIG. 1, the pressure-sensitive adhesive tape A of the present invention comprises a support 1 and a pressure-sensitive adhesive layer 2 laminated, and a separator 3 laminated on the surface of the pressure-sensitive adhesive layer 2 of the pressure-sensitive adhesive tape. It is formed by winding it around a core material such as. As shown in detail in FIG. 2, the pressure-sensitive adhesive tape A of the present invention is formed with a means 4 that can be cut in the thickness direction on a pressure-sensitive adhesive tape composed of a support 1 and a pressure-sensitive adhesive layer 2. Further, the separator 3 covering the surface of the pressure-sensitive adhesive layer 2 is also provided with the means 4 capable of being cut in the thickness direction.

The severable means 4 forms, for example, continuous cuts or intermittent holes or cuts (so-called perforations) in the width direction of the tape. As other means 4, a uniaxially stretched film may be used for the support 1, a notch may be provided only at the width end of the tape at a predetermined length, or a weakening means such as perforation processing may be provided. .

In the present invention, the forming positions of the means 4 are different from each other as shown in FIG. 2 in view of workability of attaching to the adherend, and the adhesive tape and the separator 3 are provided. It is preferable that each of the above-mentioned means 4 formed in 1 is formed so as to be cut into the same length. Therefore, since the predetermined length in the present invention is a preset length for each roll-shaped adhesive tape, roll-shaped adhesive tapes of various lengths can be prepared.

As the support 1 used in the present invention, those which have been conventionally used as a support for an adhesive tape can be used. For example, various kinds of polyethylene, polypropylene, polyvinyl chloride, polyvinylidene chloride, polyacetate, polyester and the like can be used. Examples include plastic films, pulp paper, hand-woven non-woven fabrics, cloths such as cotton cloths, and laminates thereof. Although the thickness of the support 1 is not particularly limited, it is preferably 10 to 500 μm in terms of handleability.

The pressure-sensitive adhesive layer 2 formed on at least one surface of the support 1 may also be a conventionally known pressure-sensitive adhesive, and specifically, a rubber resin, an acrylic resin, a silicone resin, a vinyl acetate resin can be used. Adhesives mainly composed of resins, vinyl ether resins, cellulose polymers and the like are used. When the roll-shaped pressure-sensitive adhesive tape of the present invention is used for medical applications such as winding ties, it is preferable to use an acrylic-based or synthetic rubber-based pressure-sensitive adhesive from the viewpoint of skin adhesion and skin irritation. The thickness of such a pressure-sensitive adhesive layer is not particularly limited, but from the viewpoint of maintaining the adhesive force and preventing the phenomenon of adhesive residue on the adherend, it is usually set to a thickness of about 10 to 100 μm. preferable.

The separator 3 used for covering and protecting the surface of the pressure-sensitive adhesive layer 2 of the pressure-sensitive adhesive tape comprising the support 1 and the pressure-sensitive adhesive layer 2 is a plastic film or a paper substrate exemplified in the above-mentioned support 1. Etc. can be used, and a peeling treatment is performed by applying a silicone-based or fluorine-based release agent to the adherend surface. As a method of forming the severable means 4 on the separator 3, the same method as the means 4 for the adhesive tape composed of the support 1 and the adhesive layer 2 can be adopted.

Hereinafter, a method of using the roll-shaped adhesive tape of the present invention will be described with reference to FIG.

3 (A) to 3 (D) are enlarged vertical cross-sectional views for explaining the process of applying using the roll-shaped adhesive tape A of the present invention.

First, in the roll-shaped pressure-sensitive adhesive tape A of the present invention shown in FIG. 3A, the separator 3 at the end portion for covering and protecting the pressure-sensitive adhesive layer 2 is cut by using the cutting means 4 located at the end portion. Remove by peeling. As a result, the surface of the pressure-sensitive adhesive layer 2 is exposed as shown in FIG. 3 (B), and this portion is attached to the surface of the adherend, and the pressure-sensitive adhesive tape composed of the support 1 and the pressure-sensitive adhesive layer 2 is directly attached to the end portion. The sticking work is completed by peeling and removing at the cuttable means 4 located at. At this time, the roll-shaped adhesive tape A of the present invention is in the state shown in FIG. When it is used by pasting again, as shown in FIG. 3D, the pressure-sensitive adhesive layer 2 is exposed by peeling and removing the separator 3, and then the method described in FIGS. 3B and 3C is used. By repeating the process, the pasting work will proceed.

Therefore, in the roll-shaped adhesive tape of the present invention, the surface of the adhesive layer 2 is protected by the separator 3 until it is used, and the cutting means 4 is formed at different positions of the adhesive tape and the separator 3. Therefore, when the separator 3 is used, the end portion of the separator 3 is always a gripping portion as shown in FIG. Moreover, since the adhesive tape can be easily peeled from the separator 3 by sticking the exposed adhesive layer surface to the adherend, the sticking work with one hand is also possible.

[0020]

【The invention's effect】

 As described above, the roll-shaped adhesive tape of the present invention has means capable of being cut into a predetermined length formed on the adhesive tape and the separator at different positions and wound in a roll shape. Thus, the work of separating the separator and the work of attaching the separator to the adherend are extremely simple.

[Brief description of drawings]

FIG. 1 is a side view of an example of a roll-shaped adhesive tape of the present invention.

FIG. 2 is an enlarged vertical cross-sectional view (a portion surrounded by an alternate long and short dash line) of a portion where the adhesive tape is fed out from the roll-shaped adhesive tape A of FIG.

FIG. 3 is an enlarged vertical sectional view illustrating a method of using the roll-shaped adhesive tape of the present invention.

FIG. 4 is an enlarged vertical cross-sectional view of a conventional roll adhesive tape.

[Explanation of symbols]

 A roll adhesive tape 1 support 2 adhesive layer 3 separator 4 means

Claims (3)

[Scope of utility model registration request] 1. A means for covering and protecting a pressure-sensitive adhesive layer surface of a pressure-sensitive adhesive tape having a pressure-sensitive adhesive layer on at least one surface of a support, wherein the pressure-sensitive adhesive tape and the separator have different means capable of being cut into a predetermined length. A roll-shaped pressure-sensitive adhesive tape formed at each position and wound in a roll. 2. The roll-shaped adhesive tape according to claim 1, wherein the severable means is a continuous or intermittent cut. 3. The rolled adhesive tape according to claim 1, wherein the adhesive tape and the separator to be cut have the same length.