JPH0740515A - Decorating film and decorated polyethylene tube container - Google Patents

Abstract

PURPOSE:To prevent the release at an overlapping part by providing an adhesive layer composed of either one of polyethylene and an ethylene/vinyl acetate copolymer resin even to the other surface not provided with a decorative layer of a transparent film by an extrusion laminating method. CONSTITUTION:A transparent film l acts as the support of a decorative layer 2 and an adhesive layer 3 before a decorating film 4 is bonded to the surface of the body part of a polyethylene container 5 and acts as the protective layer of the decorative layer 2 after the decorating film 4 is bonded. The transparent film l is formed using a polyethylene terephthalate resin, an ethylene/vinyl acetate copolymer resin, a polypropylene resin or a polyvinyl alcohol resin. The adhesive layer 3 is formed to the entire surface having the decorative layer 2 formed thereto of the transparent film 1 and an adhesive layer 3 composed of polyethylene or an ethylene/vinyl acetate copolymer resin is provided even to the other surface opposite to the surface having the decorative layer 2 formed thereto of the transparent film 1 by an extrusion laminating method. By this adhesive layer 3, the overlapping part of the winding start part and winding completion part of the decorating film 4 can be sufficiently bonded.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a decorative film and a decorative polyethylene tube container which are not peeled off at overlapping portions after being wrapped around the body of the polyethylene tube container.

[0002]

2. Description of the Related Art Conventionally, as a container for many things such as pharmaceuticals, toothpaste, foods, cosmetics, and adhesives, there is a tube container having a pattern or content indication formed on its body.

For example, a decorative film 4 having a decorative layer 2 provided on one surface of a transparent film 1 and an adhesive layer 3 provided on the entire surface of the transparent film 1 on which the decorative layer 2 is provided is used. (Refer to FIG. 4), after being wrapped around the body of the polyethylene tube container 5 via the adhesive layer 3, the adhesive layer 3 is adhered by applying heat and pressure enough to make the adhesive layer 3 sticky, and the winding start portion and the winding end portion There is a decorative polyethylene tube container 6 that overlaps (see FIGS. 5 and 6). As the material of the adhesive layer 3, polyethylene or ethylene vinyl acetate copolymer resin having good adhesion to the polyethylene tube container 5 is used. Further, as the material of the transparent film 1, polyethylene terephthalate resin, ethylene vinyl copolymer resin, polypropylene resin or the like is used from the viewpoint of easy followability to the deformation of the container and protection of the decorative layer 2.

Since the adhesive layer 3 made of the above material does not have an adhesive force with the transparent film 1 made of the above material at a temperature at which it becomes tacky, the adhesive layer 3 is extruded while extruding the molten adhesive resin. Was formed in close contact on the transparent film by the extrusion laminating method for forming.

[0005]

However, since the adhesive layer at the winding end portion of the decorative film overlaps the transparent film at the winding start portion of the decorative film, a sufficient adhesive force can be obtained at the overlapping portion. Absent. Therefore, there is a problem that the decorative film is peeled off at the overlapping portion.
On the other hand, in order to improve the adhesion, it is sufficient to apply heat pressure or more to the extent that the adhesive layer becomes tacky, but in this case, there was a problem that the shape of the polyethylene tube container itself is distorted. .

Therefore, it is an object of the present invention to provide a decorative polyethylene tube container in which the decorative film is not peeled off at the overlapping portion without heating such that the polyethylene tube container is distorted.

[0007]

In order to solve the above problems, the decorative film of the present invention is selected from polyethylene terephthalate resin, ethylene vinyl copolymer resin, polypropylene resin and polyvinyl alcohol resin. A decorative layer is provided on one side of the transparent film, and an adhesive layer made of either polyethylene or ethylene vinyl acetate copolymer resin is provided by extrusion lamination on the entire surface of the transparent film on which the decorative layer is provided. In the decorative film, an adhesive layer made of either polyethylene or ethylene vinyl acetate copolymer resin was formed on the other surface of the transparent film by extrusion laminating.

In the decorative polyethylene tube container of the present invention, the decorative film has the body part of the polyethylene tube container in which the decorative film is interposed between the decorative layer and the winding start portion and the winding end portion overlap each other. It was configured to be wrapped around.

The decorative film and the decorative polyethylene tube container of the present invention will be described below in more detail with reference to the drawings.

FIG. 1 is a sectional view showing an embodiment of a decorative film according to the present invention, FIG. 2 is a sectional view showing an embodiment of a process for producing a decorated polyethylene tube container according to the present invention, and FIG. It is sectional drawing which shows one Example of the decoration polyethylene tube container which concerns on this invention.

1 is a transparent film, 2 is a decorative layer, 3 is an adhesive layer, 4 is a decorative film, 5 is a polyethylene tube container, and 6 is a decorated polyethylene tube container.

First, the decorative film 4 of the present invention will be described (see FIG. 1).

The transparent film 1 acts as a support for the decorative layer 2 and the adhesive layer 3 before the decorative film 4 is adhered to the surface of the body of the polyethylene tube container 5, and the decorative film 4 is also provided. After being adhered to the surface of the body of the polyethylene tube container 5, it acts as a protective layer for the decorative layer 2. As the transparent film 1, polyethylene terephthalate resin, ethylene vinyl copolymer resin,
Polypropylene resin and polyvinyl alcohol resin are used. Especially if polyvinyl alcohol resin is used,
The gas barrier property of the decorative polyethylene tube container 6 can also be improved. Further, if ethylene vinyl copolymer resin is used, the aroma retaining property of the contents filled in the decorated polyethylene tube container 6 can be further improved.

The decorative layer 2 is formed on the transparent film 1. The decoration layer 2 is formed by using a coloring ink in which ordinary dyes and pigments are mixed in a resin binder and by a printing method such as screen printing or gravure printing or a coating method such as bar coating or spray coating. Further, the decorative layer 2 may be a metal vapor-deposited thin film of aluminum or the like and may exhibit a metallic luster pattern. Furthermore, both the decorative layer 2 having a colored pattern and the decorative layer 2 having a metallic luster pattern may be provided on the transparent film 1. To partially provide the decorative layer 2 having a metallic luster pattern, a metal vapor deposition thin film is formed on the transparent film 1, and a water-soluble resin layer made of sodium acrylate or the like is formed on the unnecessary portion of the metal vapor deposition thin film. The water-soluble resin layer and the metal vapor-deposited thin film on the water-soluble resin layer are removed by washing with water after forming the metal vapor-deposited thin film thereon.
If desired, anchor layers made of an olefin resin or the like may be provided above and below the decorative layer 2 having a metallic luster pattern.

An adhesive layer 3 is formed on the entire surface of the transparent film 1 on which the decorative layer 2 is formed. The adhesive layer 3 is for adhering the decorative layer 2 together with the transparent film 1 to the surface of the body of the polyethylene tube container 5. As the adhesive layer 3, polyethylene or ethylene vinyl acetate copolymer resin having good adhesion to the surface material of the container is used. Adhesive layer 3
The extrusion laminating method is used as a method of forming the. The extrusion laminating method is a method in which molten resin is extruded from a nozzle like a core and laminated.

On the other hand, on the surface of the transparent film 1 opposite to the surface on which the decorative layer 2 is formed, an adhesive layer 3 made of polyethylene or ethylene vinyl acetate copolymer resin is formed by extrusion laminating. The adhesive layer 3 is for sufficiently adhering the overlapping portion when the winding end portion of the decorative film overlaps the winding start portion of the decorative film.

In the decorative polyethylene tube container 6 of the present invention, the decorative film 4 is wound around the body of the polyethylene tube container 5 so that the winding start portion and the winding end portion overlap. (Figure 2,
(See FIG. 3).

Depending on the material, the polyethylene tube container 5 is liable to be deformed in order to squeeze out the contents, and the outer shape is easily restored after squeezing out the contents.

As a method of winding the decorative film 4 around the polyethylene tube container 5, the decorative film 4 is placed on the polyethylene tube container 5 set in a jig and heated with a roll of silicon or iron. There is a method of rotating by sandwiching the polyethylene tube container 5 and the decorative film 4. The decorative film 4 and the polyethylene tube container 5 are fused by the heat pressure of the roll.

[0020]

Since the decorative film and the decorative polyethylene tube container of the present invention are constructed as described above, they have the following effects.

That is, since the adhesive film is formed in close contact with the decorative film on the surface of the transparent film where the decorative layer is not provided by the extrusion laminating method, the decorative film wrapped around the body of the polyethylene tube container is used. Adhesion between the adhesive layers is obtained in the overlapping portion of the film for use.

[0022]

【Example】

Example 1 On a transparent film of polyvinyl alcohol resin having a thickness of 15 μm, a decorative layer was formed by gravure printing using a coloring ink in which a usual dye and pigment were mixed in a resin binder.

Next, polyethylene in a molten state was extruded and laminated on both sides of the transparent film on which the decorative layer was formed to provide an adhesive layer having a thickness of 15 μm to obtain a decorative film having a colored pattern.

This decorating film is placed on a polyethylene tube container set in a jig, and the polyethylene tube container and the decorating film are sandwiched between heated silicon rolls and rotated to start the winding start portion of the decorating film. The decorative film was wrapped around the body of the polyethylene tube container so that the winding end portions overlap with each other, and was fused by the heat and pressure of the silicon roll.

In the decorative polyethylene tube container thus obtained, the adhesive layers are adhered to each other at the overlapping surfaces of the adhesive layers at the winding start portion and the winding end portion of the decorative film, and sufficient adhesion can be obtained. It was

Example 2 Thickness of 20 μm made of biaxially stretched polypropylene resin
On the transparent film of, a decorative layer is continuously formed by a printing machine using a coloring ink in which a normal dye and pigment are mixed in a resin binder, and an olefin is formed on the surface of the transparent film on which the decorative layer is formed. An anchor layer made of a system resin was applied over the entire surface, and a water-soluble resin layer made of sodium acrylate was provided on a portion where the metal vapor deposition thin film was unnecessary.

Next, aluminum was vapor-deposited on the printed surface of the transparent film, and then the water-soluble resin layer and the aluminum vapor-deposited film on the water-soluble resin layer were washed and removed to partially provide a decorative layer made of a metal vapor-deposited thin film.

Finally, melted polyethylene was extruded and laminated on both sides of the transparent film on which each layer was formed to provide an adhesive layer having a thickness of 15 μm to obtain a decorative film having a colored and metallic luster pattern. .

This decorating film is placed on a polyethylene tube container set in a jig, and the polyethylene tube container and the decorating film are sandwiched between heated silicon rolls and rotated, and the winding start portion of the decorating film is started. The decorative film was wrapped around the body of the polyethylene tube container so that the winding end portions overlap with each other, and was fused by the heat and pressure of the silicon roll.

In the decorative polyethylene tube container thus obtained, the adhesive layers are adhered to each other at the overlapping surfaces of the adhesive layers at the winding start portion and the winding end portion of the decorative film, and a sufficient adhesive force is obtained. It was

[0031]

Since the decorative film and the decorative polyethylene tube container of the present invention have the above-mentioned constitutions and functions, the following effects can be obtained.

That is, since the adhesive force between the adhesive layers can be obtained in the overlapping portion of the decorative film wound around the body of the polyethylene tube container, the decoration can be performed without heating such that the polyethylene tube container is distorted. Peeling does not occur at the overlapping parts of the film.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing an example of a decorative film according to the present invention.

FIG. 2 is a cross-sectional view showing an example of a manufacturing process of a decorated polyethylene tube container according to the present invention.

FIG. 3 is a cross-sectional view showing an embodiment of a decorated polyethylene tube container according to the present invention.

FIG. 4 is a cross-sectional view showing an example of a conventional decorative film.

FIG. 5 is a cross-sectional view showing an example of a manufacturing process of a conventional decorative polyethylene tube container.

FIG. 6 is a sectional view showing an example of a conventional decorated polyethylene tube container.

[Explanation of symbols]

 1 Transparent Film 2 Decorative Layer 3 Adhesive Layer 4 Decorative Film 5 Polyethylene Tube Container 6 Decorative Polyethylene Tube Container

Claims (2)

[Claims] 1. A decorative layer is provided on one surface of a transparent film selected from polyethylene terephthalate resin, ethylene vinyl copolymer resin, polypropylene resin, and polyvinyl alcohol resin, and the side of the transparent film on which the decorative layer is provided. In the decorative film in which an adhesive layer made of either polyethylene or ethylene vinyl acetate copolymer resin is provided by extrusion laminating on the entire surface of the transparent film, polyethylene or ethylene vinyl acetate copolymer resin is also provided on the other surface of the transparent film. A decorative film, wherein the adhesive layer made of the above is provided by an extrusion laminating method. 2. The decorative film according to claim 1, wherein the decorative film is wound around the body of a polyethylene tube container with an adhesive layer adjacent to the decorative layer interposed between the winding start portion and the winding end portion. A characteristic decorative polyethylene tube container.