JPH018528Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Industrial application field] The present invention relates to packaging materials.

[Prior Art] In the past, it was believed that it was impossible to use a combination of a shrink film and a non-shrink film, because when used in this way, the non-shrink film would wrinkle due to the contraction of the shrink film. Become,
This was because the printed surface of the film, which does not shrink, was deformed. For example, when wrapping the outer periphery of a dry battery, since the outer periphery of the dry battery is a cylinder of zinc that serves as the cathode, it is necessary to cover this outer periphery with an insulator. It was covered with an insulating film.

[Problems to be solved by the invention] Shrinkable films and non-shrinkable films are also used as the film mentioned above.
If you use a non-shrinkable film, paper, or metal sheet, the print can be clearly expressed as is, but in order to wrap it around the top and bottom shoulders of the battery, you need to use a non-shrinkable material such as paper. In addition, metal sheets have the drawback of requiring time and effort.Also, when using a conventional shrink printing tube, it is easy to roll in the shoulders, but the printed surface also shrinks, resulting in deformation of the printed surface. In order to express the metallic luster that is often required on the printed surface, printed shrink tubes, which are made by applying metal vapor deposition to shrink film, are sometimes used, but when heated and shrunk, a whitening phenomenon occurs on the vapor deposited parts. This is the biggest drawback of the packaging, as it could not serve its purpose.

[Means for Solving the Problems] The present invention was developed in view of the above matters, and the configuration of the present invention will be explained next.

The non-shrinkable film body 1 is transformed into a shrinkable film body 2
At least a part of the side edge of the shrinkable film body 2 is provided with an extension portion 3 serving as a shrinkage allowance, and is attached to the shrinkable film body 2.
In addition, the non-shrinkable film body 1 is made of a rigid material that does not shrink due to the contraction force of the shrinkable film body 2.
Examples of rigid materials that do not shrink due to the contraction force of the shrinkable film body 2 include extremely thin metal sheets with a thickness of about 7 microns and paper members with a thickness of about 60 microns.Also, synthetic resin films can be considered. When used, it is preferable to reinforce the rigidity by closely adhering the film to the packaged object 4.

[Function] The present invention has the above-mentioned structure, and when used, it is wrapped around the object to be packaged 4 and heated and attached in the same way as conventional shrink film packaging. Since only the decorative film body 1 that does not shrink due to heat and the unlaminated portion, that is, the extension portion 3, shrinks, the printed surface does not shrink at all. It is able to express the state as it is, and in order to express the metallic luster that is often required for printed surfaces, printing shrink tubes, which are made by applying metal vapor deposition to shrink film, are sometimes used. However, because the present invention has the above-mentioned structure, it is possible to express a design with excellent metallic luster.

In addition, the present invention provides a decorative film body 1 that does not shrink.
By polymerizing and adhering the shrinkable film body 2 and the shrinkable film body 2 for attachment, the shrinkage force of the shrinkable film body 2 can be reduced, and if both films 1 and 2 are used without being laminated, the rigidity will be slightly wrinkled. Even if the film body 1 does not have any wrinkles, it may be possible to obtain a wrinkle-free state by laminating the film body 1.

[Example] A decorative film body 1 that does not shrink due to heat and a stretched shrinkable film body 2 for attachment are polymerized and bonded, and when attached to a packaged object 4, when heated, the shrinkable film The decorative film body 1 is formed by shrinking the body 2 at least in the stretching direction and forming extending portions 3, 3 with a length that can be attached to the packaged body 4, and which does not shrink. It is necessary to use a material with rigidity that will not shrink due to shrinkage force.

In this case, the film body 1 may be a paper member, an extremely thin metal plate, or a synthetic resin film.
Also, the printing surface is a film body 1 or a shrinkable film body 2.
But that's fine.

The thickness of the above metal sheet is approximately 0.006mm.
The thickness of the cardboard is preferably about 0.06 mm.

The method of wrapping the film around the packaged object 4 may be to apply an adhesive to the back side of the laminated film and wrap it around the packaged object 4, or it may be joined by heat sealing. In some cases.

Of course, the present invention can be used not only for dry batteries but also for packaging various other items.
As shown in the figure, a cylinder with at least the same circumference on the vertical side,
The overlapping adhesive portions of both film bodies 1 and 2 are positioned on the vertical trunk 6 of the container article 4 having a prismatic or cylindrical shape, and the shoulder portion 7 and bottom portion 8 are connected to the extension portion 3 of the shrink film body 2.
It can also be made by heating and shrinking.

Further, as shown in FIG. 4, the extending portion 3 may be formed only on one side, or may be formed in a circular, elliptical, polygonal, etc. shape as in the embodiment shown in FIG.
In this case, a container 4 as shown in FIG. 6 is used.

As described above, in the embodiment, the extending portion 3 of the shrinkable film body 2 is located at the bottom or shoulder of the object to be packaged. It is used by positioning it vertically or horizontally depending on the shape and condition and the shrinking direction of the shrink film body 2.

[Effects of the invention] Since the present invention has the above-mentioned configuration, it is possible to use a combination of a shrinkable film and a non-shrinkable film, which was conventionally considered impossible. Take the good points,
Moreover, it eliminates the drawbacks of both, making it the best packaging material.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the first embodiment of the present invention;
Figure 2A is a perspective view showing one usage state of the first embodiment, Figure 2B is a vertical sectional view of Figure 2A, and Figure 3C.
3D is a longitudinal sectional view of FIG. 3C, FIG. 4 is a perspective view of the second embodiment of the present invention, and FIG. 5 is a perspective view showing another usage state of the first embodiment. is also the third
FIG. 6 is a perspective view showing the embodiment of FIG. 5 in use. 1...Film body, 2...Shrinkable film, 3
...Extending portion, 4...Object to be packaged.

Claims (1)

[Claims for Utility Model Registration] (1) A non-shrinkable film body 1 is attached to a shrinkable film body 2 with an extension 3 provided as a shrinkage allowance on at least a part of the side edge, and the film body 1 is not shrunk. A packaging material characterized in that the film body 1 is made of a rigid material that does not shrink due to the contraction force of the shrinkable film body 2. (2) The packaging material according to claim 1, which is a utility model registration, characterized in that the non-shrinkable film body 1 is an extremely thin metal sheet with a thickness of about 7 microns. (3) The packaging material according to claim 1, which is a utility model registration, characterized in that the non-shrinkable film body 1 is a paper member having a thickness of about 60 microns. (4) The non-shrinkable film body 1 is made of a synthetic resin film body having a rigidity that does not shrink due to the contraction force of the shrinkable film body 2, and the rigidity is increased by adhering the synthetic resin film body to the packaged body 4. The packaging material according to claim 1 of the utility model registration claim, characterized in that it is reinforced.