JPH11139693A - End surface pad for paper tube and paper tube - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent falling and scattering of paper dust from a paper tube end surface in a process to wind up and unwind a lengthy synthetic resin film and an aluminum foil by using the paper tube as a core. SOLUTION: An end surface pad 1 for a paper tube is made by laminating and integrating an adhesive 3 on one surface of a ring type synthetic resin film 2 cut in the same shape as an end surface of the cylindrical paper tube, and this end surface pad 1 is adhered onto the end surface of the paper tube to cover the end surface. Consequently, it is possible to prevent falling and scattering of paper dust from the end surface of the paper tube.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an end pad for a paper tube and a paper tube, and more particularly, to an end pad for a paper tube for preventing paper dust from falling off the end surface of the paper tube and both end surfaces of the paper tube. The present invention relates to a paper tube covered with a ring-shaped synthetic resin film so that paper dust does not fall off and scatter from an end face.

[0002]

2. Description of the Related Art A lightweight and inexpensive cylindrical paper tube is widely used as a long synthetic resin film, aluminum foil, or a core material for winding various kinds of yarn.

[0003] However, a commonly used paper tube is formed by cutting a long paper tube into a predetermined length.
The cut end surface is a rough surface where the material for forming the paper tube is exposed as compared with the surface. Therefore, at the time of transporting the paper tube, or at the time of high-speed winding of a synthetic resin film or aluminum foil, or various types of yarn, fine paper dust falls off and scatters from the end face, and sometimes some of the fallen and scattered paper dust is removed. The inconvenience of being wound up in the above-mentioned rolled-up material occurs. This inconvenience is one cause of, for example, the occurrence of fine scratches and pinholes in a part of the wound synthetic resin film or aluminum foil.

[0004] In addition, when a long synthetic resin film or aluminum foil wound on a paper tube as described above is unwound and printed on the surface of the long body, or when laminating and integrating the films with each other. Even if it is, fine paper powder falls off and scatters from the end face of the paper tube in the same manner as above, and the scattered paper powder adheres to the surface of the film or aluminum foil, causing printing unevenness and film lamination failure. Had become.

The above disadvantages can be solved by applying and penetrating a synthetic resin to the end face of the paper tube to form a resin film on the end face. Was strongly desired.

[0006]

DISCLOSURE OF THE INVENTION The present invention relates to a paper tube for a paper tube which can easily and smoothly cover the end surface of the paper tube and can prevent paper dust from falling off and scattering from the end surface of the paper tube. An end face pad and both end faces of a paper tube are covered with a ring-shaped synthetic resin film to provide a paper tube in which paper powder does not fall off and scatter from the end surface.

[0007]

The end face pad according to the present invention is characterized in that an adhesive layer is laminated and integrated on one surface of a ring-shaped synthetic resin film having the same shape as the end face of a cylindrical paper tube. I do.

A paper tube according to a second aspect is characterized in that a ring-shaped synthetic resin film having the same shape as the end surface of the paper tube is bonded to both end surfaces of the cylindrical paper tube via an adhesive layer. I do.

[0009]

When the release paper is temporarily bonded to the pressure-sensitive adhesive layer laminated and integrated on one surface of the ring-shaped synthetic resin film, the release paper is peeled off, and the release paper is laminated and integrated on one surface of the ring-shaped synthetic resin film. When a plurality of ring-shaped synthetic resin films are laminated in layers via the converted pressure-sensitive adhesive layer, one end face pad laminated on the top is peeled off from the other end face pad. Then, the end face pad in which the exposed pressure-sensitive adhesive layer peeled off as described above is laminated and integrated on one surface is adhered to both end faces of the paper tube by the pressure-sensitive adhesive layer.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One example of an end pad according to the present invention will be described with reference to the drawings. As shown in FIG. 1, an end face pad 1 for a paper tube of the present invention is formed by laminating and integrating an adhesive layer 3 on one surface of a ring-shaped synthetic resin film 2 having the same shape as an end surface of a cylindrical paper tube described later. .

As the above synthetic resin film 2, usually,
A resin film made of polyethylene terephthalate (PET), biaxially oriented polypropylene (OPP), polyvinyl chloride (PVC), or the like having a thickness of about 12 to 50 μm is used, and is laminated on one surface of the ring-shaped synthetic resin film 2. As the integrated pressure-sensitive adhesive layer 3, a pressure-sensitive adhesive that has been widely used in the past is used.

In order to obtain the end face pad 1, for example, an adhesive is applied on release paper, and a synthetic resin film is adhered on the adhesive to obtain a laminate. A slit that does not reach the release paper is inserted into this laminate from the synthetic resin film side to form an end surface pad sheet on which a plurality of end surface pads are temporarily bonded on the release paper, and one end surface pad is peeled from the release paper By doing so, the end face pad can be obtained. In addition to this manufacturing method, a synthetic resin film having a pressure-sensitive adhesive applied to one surface and a release agent applied to the other surface is laminated and integrated in a plurality of layers, and the synthetic resin film in this layer state is punched in a ring shape. Forming an end surface pad layered body in which the end surface pads are laminated and integrated in a plurality of layers, and peeling off the uppermost end surface pad of the end surface pad layer from a subsequent end surface pad to obtain the end surface pad. it can.

As shown in FIG. 2, the paper tube 10 to which the above-mentioned end surface pad is adhered has a cylindrical shape which is generally used in the related art.

Next, a method of using the end face pad of the present invention will be described. First, when the end face pad 1 is formed in the form of an end face pad sheet, the end face pad 1 is peeled off from release paper, and when the end face pad 1 is formed in an end face pad layered body, the uppermost end face pad 1 is successively provided. From the end face pad 1 to be formed.

Then, the end face pad on which the pressure-sensitive adhesive layer 3 laminated and integrated on one surface is exposed is adhered to both end faces 11, 11 of the paper tube 10 by the pressure-sensitive adhesive layer 3. At this time, since the shape of the end face pad 1 is formed so as to have the same shape as the end face 11 of the paper tube 10 to be adhered, both end surfaces 11, 11 of the paper tube 10 are completely covered by the end face pads 1, 1. Is done.

Therefore, even when a long film or the like is wound or unwound onto the paper tube 10, both end surfaces 11, 11 of the paper tube 10 are completely covered by the end surface pads 1, 1. Therefore, the paper dust does not fall off and scatter from the end face thereof due to the rotation of the paper tube 10, and thus, the dropped and scattered paper dust does not adhere to the surface of the film or the like.

[0017]

The end pad 1 for a paper tube according to the present invention is characterized in that the pressure-sensitive adhesive layer is laminated and integrated on one surface of a ring-shaped synthetic resin film having the same shape as the end surface of the cylindrical paper tube. The adhesive layer can be easily attached to the end surface of the paper tube, and the end surface of the paper tube can be smoothly and completely covered.

Therefore, even when a long film or the like is wound or unwound on a paper tube, the paper dust from the end face of the paper tube falls off and scatters, and the long or unwound long film is wound. Paper dust does not adhere to the surface of the synthetic resin film or aluminum foil, preventing scratches and pinholes on the surface of the long body caused by the adhesion of the paper dust, printing unevenness, lamination failure, etc. Can be.

In addition, the end face of the paper tube covered with the above-mentioned end surface pad is formed into a smooth surface by the end surface pad, so that the upright posture of the paper tube is stable and suitable for storage.
In addition, a simple structure such as using a colored synthetic resin film in the form of a ring or displaying the quality of a long body wound on a paper tube by printing on the film surface is also possible. However, it has a number of practically useful effects.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of an end pad for a paper tube according to the present invention.

FIG. 2 is a perspective view showing an embodiment of the paper tube of the present invention in which end pads are attached to both end surfaces.

[Explanation of symbols]

 1. End pad for paper tube 2. 2. Synthetic resin film Adhesive 10. Paper tube

Claims (2)

[Claims] 1. An end pad for a paper tube, wherein an adhesive layer is laminated and integrated on one surface of a ring-shaped synthetic resin film having the same shape as the end surface of the cylindrical paper tube. 2. A paper tube wherein a ring-shaped synthetic resin film having the same shape as the end surface of the paper tube is bonded to both end surfaces of the cylindrical paper tube via an adhesive layer.