JPH0633109B2 - Packaging method - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a method for overwrapping a blister package, which does not require the outer packaging of the blister package, has good protection for the packaged object, and This is a packaging method for obtaining a package in which the package can be seen from the outside and which can be easily opened.

[Prior Art] Conventionally, packaging has been performed in which a plastic film is molded into a shape that matches the object to be packaged, the contents are filled and sealed, and such packaging is called a blister package, and is a medicine tablet, daily necessities, Widely used in small parts and processed foods.

In the method of packaging medicine tablets, etc., the packaging obtained by these blister packaging methods is further placed in a container such as a paper box, and further outer packaging is required, or the object to be packaged cannot be seen from the outside. However, it has the drawback that it cannot be opened with one touch when opening, and it is still used as a blister package for daily necessities and small parts, but it is not sufficiently satisfactory in terms of the protection of the packaged item. Had.

[Object of the Invention]

The present invention, as a result of various studies, has conventionally put the blister package in a container such as a paper box, the outer box of the blister package is unnecessary, the packaged item can be protected, and the packaged item is the outside. It is an object of the present invention to provide a packaging method for obtaining a package that can be seen from the outside and that can be easily opened.

[Structure of Invention]

The present invention, as an overwrap of a blister package, cover the overwrap packaging molded product (1) formed at a low temperature without losing the heat shrinkability by the heat shrinkable film from the upper part of the blister package (2), Concerning a packaging method in which heat is not applied to the top surface (3) and only from the side surface, the skirt portion (4) is heated and shrunk by hot air etc., and the upper packaging material is brought into close contact with the lid material (5) of the blister package Is.

The gist of the present invention is that the outer box of the blister package is unnecessary, the object to be packaged can be protected, the object to be packaged can be seen from the outside, and a study for obtaining a blister package that is easy to open is performed. As an overwrap for the package, a heat-shrinkable film is formed without loss of heat-shrinkability, and the obtained overwrap packaging molded product is covered from above the blister package, and the skirt portion of the overwrap packaging material. The present inventors have found a packaging method in which the blister packaging material is closely attached to the lid material.

The details will be described below.

1, 2 and 3 are cross-sectional views for explaining the packaging method of the present invention. The overwrapped packaged article (1) is a single-layer or multi-layer heat-shrinkable film which is heat-shrinkable. To prevent this, clamp the non-molded parts firmly on the upper and lower plates, and at the same time preheat only the parts to be molded by the built-in preheater on the upper plate and cool them by vacuum pressure forming or pressure forming. (3) A flange part (11) and a skirt part (4) are formed.

Then, wrap it over the top of the blister package (2) and package it.
Cover with (1), and then press the cushioning plate (6) from above to cover the top of the molded package (1), especially the top surface (3) and the flange.
While holding (11), heat the skirt (4) from the side and obliquely above with hot air or the like.

Since the skirt part (4) is hardly preheated and shrunk at the stage of the molded product, the heat shrinkage performance is exactly the same as that of the original heat shrinkable film, so that it shrinks when heat is applied. At this time, the skirt portion (4) is contracted until it fits into the lid body (5) of the blister package (2) to form a close contact portion (4 ').

The close contact part (4 ') is wrapped around the cover material (5) of the blister package (2) by the contraction force of the shrinkable film, and the blister package (4') is not broken. The object (7) to be packed in the body (2) cannot be taken out.

The blister package (2) is composed of the article to be packaged (7), the molding container part (8) and the lid member (5). Further, the heat-shrinkable film to be used is not limited to a single substance, but a composite film having a heat-welding adhesive layer laminated on the inner surface can be used to impart the function of shrinkage force and adhesive force.

FIG. 4, FIG. 5 and FIG. 6 are a perspective view, a plan view and a back plan view of an example of a packaged body of medicine tablets obtained by the packaging method of the present invention. It is an example of overwrapping the blister package, (9) is a saw-tooth provided to the blister package, for dividing the blister package of each tablet, (10) is the present invention. Wrapped and molded article (1)
It is a tearing part given to the skirt part (4) of the above, and by tearing this tearing part (10) at the time of opening, the overwrap packaging material of the present invention can be easily separated from the blister package and easily opened. is there.

Further, in the package obtained by the packaging method of the present invention, the article to be packaged (7) is a double packaging of the blister molding container part (8) and the overwrapped packaged article (1) of the present invention. For this reason, the outer box of the blister package is unnecessary, and the product to be packaged (7) can be seen from the outside because it has good protection of the product to be packaged and uses a transparent film made of synthetic resin. Is.

〔The invention's effect〕

As described above, the package obtained by the packaging method of the present invention is easy to open, the outer box of the blister package is unnecessary, the protective property of the packaged item is good, the packaged item is visible from the outside, etc. It has various characteristics.

[Brief description of drawings]

FIG. 1, FIG. 2 and FIG. 3 are sectional views for explaining the packaging method of the present invention. FIG. 4, FIG. 5 and FIG. 6 are a perspective view, a plan view and a back plan view of an example of a package of medicine tablets obtained by the packaging method of the present invention.

Claims (1)

[Claims] 1. An upper package of a blister package, which is formed at a low temperature without losing heat-shrinkability by a heat-shrinkable film, and is overlaid on the blister package (2). , The top surface (3) is not heated and only from the side,
A packaging method, characterized in that the skirt portion (4) is heated and shrunk by hot air or the like, and the overwrapping packaging material is brought into close contact with the lid material (5) of the blister packaging body.