JPH1111517A - Shrink-packaging film, manufacture, thereof, and method for packaging - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a shrink-packaging film, a method for manufacturing the film, and a method for packaging wherein a structure is simple and unsealing is easy. SOLUTION: An article 24 to be packaged is covered by a heat-shrinkable film 10, at least a pair of ends of the film 10 are fused to weld, and thereafter the film is heated to have the heat-shrinkable film 10 shrunk to package the article 24 with tension. An anti-welding mark 18 for preventing fuse-welding is printed on a part to be fuse-welded, so that a part where the film 10 ends are not welded to each other is formed on a part of the anti-welding mark 18. A part which has not been welded receives tension generated when the heat-shrinkable packaging film 10 heat-shrinks at the time of packaging the article 24 and opens sideward, thereby forming an opening 26.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shrink wrapping film used for shrink wrapping which covers a product with a heat-shrinkable film and wraps the product in a state where the heat-shrinkable film is heated and shrunk, and a method for producing the same. And packaging methods.

[0002]

2. Description of the Related Art Conventionally, there is a pillow-type package in which a product is wrapped in a film as a shrink wrapper for wrapping a product with a heat-shrinkable film having tension. This pillow-type packaging uses a band-shaped heat-shrinkable film. First, a heat-shrinkable film is formed in a tubular shape along the center line in the longitudinal direction of the heat-shrinkable film. Form a body. Then, a product is inserted into the tubular body, and the openings at both ends of the tubular body are fused and welded to wrap the product. Thereafter, the product wrapped in the heat-shrinkable film is heated by a heat tunnel or the like to shrink the heat-shrinkable film and wrap the product under tension.

[0003]

In the case of the above-mentioned prior art, the whole product is wrapped in a heat-shrinkable film. It was necessary to open the heat-shrinkable film while tearing it, and it was not easy to tear, and it was troublesome and hard to open.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and has as its object to provide a shrink wrapping film which has a simple structure and which can be easily opened, and a method for producing and shrinking the film. .

[0005]

SUMMARY OF THE INVENTION According to the present invention, an article to be packaged is covered with a heat-shrinkable film, and at least a pair of ends of the heat-shrinkable film are fused and welded to each other, and then heated to obtain a heat-shrinkable film. A shrink wrapping film for shrinking the film and wrapping the product with tension, wherein a seal for preventing fusing and welding is printed on a part of the fusing and welding portion. Then, a portion where the heat-shrinkable films are not welded to each other is formed at the portion of the welding prevention mark. The non-welded portion is opened to the side under the tension generated when the heat shrink wrapping film is thermally shrunk at the time of packaging the product, and forms an opening.

The present invention also relates to a method for producing a shrink wrapping film for covering an article to be packaged, fusing and welding at a predetermined position, and heat shrinking the film, wherein the portion of the film to be fusing and welding is provided. Is a method for producing a film for shrink wrapping, in which a welding prevention mark for preventing fusing and welding is printed simultaneously or continuously with a pattern on another part.

Further, according to the present invention, the article to be packaged is covered with a heat-shrinkable film, and at least a pair of ends of the heat-shrinkable film are fused and welded to each other, and then heated to shrink the heat-shrinkable film. A packaging method for packaging a product, wherein a welding prevention mark for preventing fusion welding is printed on a part of the heat shrinkable film at a portion where the fusion welding is performed, together with another pattern, and the above-described method is performed so as to cross the portion of the welding prevention mark. The heat-shrinkable film is fused and welded to form an unwelded portion at the welding prevention mark, and the heat-shrinkable packaging film is heat-shrinked by a heat tunnel or the like, and is subjected to tension generated by the heat shrinkage. This is a packaging method in which a portion of the welding prevention mark is opened to the side and an opening is formed in a part of the fusing and welding portion of the heat shrinkable film.

In the shrink wrapping film of the present invention, the opening formed in a part of the fusing and welding portion is scratched when the package is opened, and the shrink wrapping film is formed along the fusing and welding portion and other portions. The product can be easily taken out while breaking.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. 1 to 3 show an embodiment of the present invention. A shrink wrapping film 10 according to this embodiment is a belt-like film formed of a heat-shrinkable synthetic resin such as vinyl chloride, polyethylene terephthalate, polypropylene, and polystyrene. , A picture 12 located on the side of the product at the time of packaging is printed at predetermined intervals.
A little inside the both side edges 14 of the film 10 for shrink wrapping,
It is a pair of fusing and welding portions 16 that are fusing and welding to each other in a packaging process described later, and the fusing and welding portions 16 are straight lines parallel to both side edges 14. On the fusing welding portion 16, rectangular pattern welding prevention marks 18 are printed at equal intervals for each packaging unit, and one welding prevention mark 18 is provided for each pattern 12,
It is provided at a predetermined position. An arrow 20 indicating the welding prevention mark 18 is printed near the welding prevention mark 18.
Further, between a pair of adjacent patterns 12, the strip-shaped shrink wrapping film 10 is individually separated for each pattern 12 in a packaging step described later, and the product to be packaged is wrapped and the openings at both ends are welded. Fusing and welding portion 17
Is a straight line orthogonal to the longitudinal direction of the shrink wrapping film 10.

Next, the shrink wrapping film 1 of this embodiment
How to use 0 will be described. First, the shrink wrapping film 10 is folded into a tubular shape along the center line in the longitudinal direction, the side edges 14 are overlapped with each other, and fused and fused at the fusion welding portion 16 to form a tubular body. A cosmetic bottle 24, which is a product with a cap 22, is inserted into the tubular body, and is fused and welded at a fusion welding portion 17 located at an opening of the tubular body. Wrap in. Thereafter, the film is shrunk by heating in a heat tunnel or the like to shrink the film for shrink wrapping, and FIG.
The decorative jar 24 is packaged in a state where the film for shrink wrapping 10 has tension as shown in FIG.

In this state, since the welding prevention mark 18 is printed on a part of the fusing and welding portion 16, the fusing and welding is prevented by the fusing prevention mark 18 to form a portion which is not welded. The non-welded portion is opened to the side under the tension generated when the shrink wrapping film 10 is heated and shrunk to form a small opening 26.

When the package of the shrink wrapping film 10 is opened, the opening 2 formed in a part of the fusing and welding portion 16 is opened.
A nail or the like is put in 6 and the cosmetic bottle 24 as a product is taken out while tearing the shrink wrapping film 10 along the fusing and welding portion 16.

According to the shrink wrapping film 10 of this embodiment, the process for forming the opening 26 is simply to print the welding prevention mark 18 on the fusing and welding portion 16 and to print other patterns 12 and the like. Can be formed simultaneously or continuously with
No special process for forming the opening 26 is required.
Further, the welding prevention mark 18 can be printed simultaneously with the picture 12, and the manufacturing cost is almost the same as that of the conventional product. An arrow 20 is printed near the welding prevention mark 18 so that the opening 26 is easily visible.

The shrink wrapping film of the present invention comprises
The present invention is not limited to the above embodiment, and can be used regardless of the type and form of the product. The material and thickness of the shrink wrapping film can be freely set. In addition, the form of the shrink wrapping is not limited to the pillow type, and can be used for an L-type wrapping apparatus using a two-fold film. good.

In addition, the design of the welding prevention mark 18 and the arrow 20 can be freely designed in addition to the above-mentioned embodiment. Further, characters are printed on the side of the arrow 20 and an opening for opening the package is provided. May be explained.

[0016]

The shrink wrapping film of the present invention, its manufacturing method and its wrapping method have a simple structure and facilitate the opening operation of the product wrapping. Enables clean packaging.

[Brief description of the drawings]

FIG. 1 is a front view of a shrink wrapping film according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a use state of the shrink wrapping film of this embodiment.

FIG. 3 is a plan view showing a use state of the shrink wrapping film of this embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Shrink wrapping film 12 Picture 14 Side edge part 16, 17 Fusing welding part 18 Welding prevention mark 20 Arrow 26 Opening

Claims (3)

[Claims] 1. A product to be packaged is covered with a heat-shrinkable film, and at least a pair of ends of the heat-shrinkable film are fused and welded to each other, and then heated to shrink the heat-shrinkable film, thereby causing the product to shrink. In the shrink wrapping film for packaging, a welding prevention mark for preventing the fusion welding is printed on a part of the fusion welding part of the film, and the heat shrinkable films are welded to each other at the welding prevention mark in the fusing state. A film for shrink wrapping, characterized in that a portion not formed is formed. 2. A method of manufacturing a shrink wrapping film for covering an article to be wrapped, fusing and welding at a predetermined position, and heat shrinking the wrapped product to form a shrink wrapping film. A method for producing a film for shrink wrapping, comprising printing a welding prevention mark for preventing welding together with a pattern of another part. 3. A product to be packaged is covered with a heat-shrinkable film, and at least a pair of ends of the heat-shrinkable film are fused and welded to each other, and then heated to shrink the heat-shrinkable film and wrap the product. In the packaging method, a welding prevention mark for preventing fusion welding is printed on a part of the heat shrinkable film to be fused and welded, and the heat shrinkable film is fused and welded so as to cross the welding prevention mark. Forming an unwelded portion at the welding prevention mark portion, heat shrinking the heat shrink wrapping film, receiving the tension generated by this heat shrinkage, the welding prevention mark portion is opened to the side, A packaging method, characterized in that an opening is formed in a part of the fusing-welded portion of the heat-shrinkable film.