JP2002264907A - Method of manufacturing article package, and the article package - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a blister package made of a resin comprising a polyolefin which is easy to process in a recycling process by an easy manufacturing method for a package having both a surface and a rear face of a mount printed. SOLUTION: The method of manufacturing an article package comprises a process of interposing a belt-like core sheet in the middle of a belt-like print film which is half-folded and overlaid for forming a belt-like three-layered structure, a process of leaving a predetermined printing pattern of the three- layered structure stationary at a predetermined position on a thermally welding table, a process, in tune with the process, of leaving a sheet cover together with an article to be received stationary corresponding to the three-layered structure at a position on the thermally welding table, a process of contact- bonding the polyolefin sheet cover with heat to the structure, and then a process of punching the structure.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing a product package commonly called a blister package and a product package.

[0002]

2. Description of the Related Art Conventionally, when a plastic wrapping sheet having a concave portion large enough to store a product is attached to a backing sheet, the product is stored in a space formed between the two sheets. The body was used. This is called blister packaging and is widely used because it is convenient for display at retail stores such as supermarkets. Many of these blister packages are manufactured by attaching a packaging sheet containing goods with an adhesive to a paper mount. As an alternative to blister packaging, the side edges of the paper mount are fitted and fixed in grooves on the side edges of the plastic seat cover. In addition, a transparent vinyl chloride resin sheet has been used as a plastic packaging sheet so that products inside can be seen. In such a blister package of a composite material of paper and plastic, separation of paper and resin is not easy, and it is difficult to process in a recycling step. Also, incineration of vinyl chloride resin may cause environmental problems. Also, in the case of blister packaging, it is difficult to enclose the instructions for use, and there is a demand for the back of the backing sheet to be printed with explanatory text such as how to use the product. In order to improve purchasing power, it is necessary to print a background design or the like that enhances the appearance of stored products. For this reason, it is necessary to print on both sides of the backing sheet. This means that when the blister package is efficiently manufactured by a continuous manufacturing method, it is necessary to synchronize the printing patterns on the front and back sides.

[0003]

An object of the present invention is to provide a blister package made of the same resin which is easy to manufacture in a package, is printed on both sides of the backing sheet, and is easy to process in a recycling process. It is the purpose. In other words, the present invention provides information on products, advertisements,
An object of the present invention is to provide a method for efficiently and continuously producing a blister package using a polyolefin resin without using paper, for a blister package on which printing for explanation or the like is displayed.

[0004]

Means for Solving the Problems In laminating a print film on both sides of a belt-shaped core sheet used in a continuous production method, the present inventors half-fold the print film to form three layers on both sides of the core sheet. By laminating the structure, the printed pattern on the front and back sides is synchronized, and the laminated film and the blister packaging sheet are made of the same material, so that the blister packaging sheet can be easily fused and fixed to the backing sheet laminated film. It was made. As a result, the inventor has completed a method for producing a blister package that is easy to produce continuously. That is, the present invention includes the following items. (1) At a certain interval determined according to the size of the product package, a substantially center line of the band-shaped printing film is continuously fed while a band-shaped printing film made of polyolefin having a printing pattern repeated in the longitudinal direction is continuously fed. Forming a strip-shaped three-layer structure by sandwiching a polyolefin strip-shaped core material sheet in the middle of the strip-shaped printing film to be half-fold polymerized, and then moving one pitch at regular intervals. By moving, detecting the print pattern of the strip-shaped three-layer structure, a step of stopping a predetermined print pattern of the strip-shaped three-layer structure at a predetermined position on the heat welding table, synchronized with the step, A product to be stored and a polyolefin seat cover having a concave portion for storing the product are left at the position of the heat-sealing table corresponding to a predetermined position of the stationary three-layer structure. A step of fixing the periphery of the polyolefin seat cover to a band-shaped printing film on the upper surface of the band-shaped three-layer structure by means of a thermocompression bonding means, thereby enclosing the product in the concave portion of the seat cover, and then fixing by fusion. A step of punching the band-shaped three-layer structure into a desired outer shape of the product package by thermal fusing and / or mechanical cutting on the periphery of the seat cover or outside the periphery of the seat cover. Manufacturing method of package. (2) The method for producing a product package according to (1), wherein the material of the belt-shaped printing film and the seat cover is polypropylene. (3) The method for producing a product package according to the item (1) or (2), wherein the punching is performed so that a hanging header portion is formed on an upper portion of the product package. (4) Polyolefin having a concave shape at a predetermined position on the printed polyolefin film on one side of the three-layer structure sheet laminated on both sides of the core material sheet with the printed surfaces of the two printed polyolefin films facing inward. A product package, wherein a product is stored in a space formed between the printed polyolefin film formed by heat-sealing the periphery of the seat cover and a polyolefin seat cover having a concave shape. (5) The product package according to item 4, wherein the printed polyolefin film and the polyolefin seat cover are polypropylene. (6) The product package according to (4) or (5), wherein a hanging header portion is provided above the product package.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION The core sheet of the backing sheet used for packaging the package of the present invention, the printing film and the sheet cover laminated on both sides thereof are made of polyolefin resin, and polypropylene, polyethylene and these Resins based on blends can be used. As the polypropylene resin, a copolymer mainly composed of propylene units, which is called oriented polypropylene, soft polypropylene, random polypropylene, or block polypropylene, can be used. In particular, it is preferable that the sheet cover and the printing film are made of polypropylene in terms of transparency and clearness of printing, and by making them both homogeneous, the sheet cover and the printing film to be applied in the manufacturing method of the present invention. Can be easily fixed by fusion. As the print film, a printable thin film, for example, a film having a thickness of about 20 to 70 μm can be used. As the printing film, a two-layer or three-layer laminated film of two or three types of resin films can be used. When a printed laminate film is used, when a three-layer laminated structure is used, if a material which is easily fused to a polyolefin sheet cover is used on the outside, a process of fusing the sheet cover and the printed film in the production of a packaged body. Becomes easier. The core material sheet used in the present invention is a sheet that is stiffer than the print film, and preferably has a thickness of about 40 to 300 μm. As the sheet used for the seat cover of the present invention, a sheet having a greater thickness than the core sheet can be used. The seat cover of the present invention has a concave portion for storing a product, and the concave portion for storing a product can be manufactured by vacuum forming or pressure forming a polyolefin sheet. The seat cover needs to be rigid enough to keep the shape of the product storage section, but a hard resin or a soft resin can be used as a material. In addition, if the thickness of the seat cover is large, the process of thermocompression bonding of the seat cover to the printing film becomes difficult, so that the seat cover can be fused by heat bonding or by high frequency or ultrasonic fusion. The product package of the present invention has a structure 2 shown by the sectional structure of FIG.
As shown in FIG. 2, the product S is stored in a three-layer structure sheet in which a plurality of printing films 1 and 2 made of polyolefin are laminated on both sides of a core material sheet 3 with a printing surface (not shown) facing inward. Peripheral edge 8 of seat cover 4 made of polyolefin
And a printed polyolefin printing film 2 fused and fixed. FIG. 3 is a front view of the package of the present invention, in which the sheet cover 4 is fused to the peripheral edge 8 and the print film 2 so as to be in the center of the three-layer structure of the core sheet 3 and the print films 1 and 2. Fixed. Since the seat cover 4 is colorless and transparent, the inside product S can be easily seen from the outside. At the upper part, there is a header part for suspension provided with suspension holes 6.
In addition, instead of the hanging hole 6, a hanging hook 7 can be provided as shown in FIG. In the case of the hook 7, for reinforcement, it is desirable to fuse a reinforcing sheet to the back surface of the hook portion and to punch out the hook together with the reinforcing sheet. The manufacturing method of the present invention is to continuously manufacture the above-described product package of the present invention. The printed film made of polyolefin used in the manufacturing method of the present invention is a single strip of the print pattern of the back print film 1 of the core sheet (the back side of the package) and the print pattern of the front print film 2 (the front side of the package) in parallel. It can be printed on film. As a result, the print patterns on the front surface and the back surface of the core sheet do not shift from each other. This print pattern is a print pattern that is repeated at regular intervals corresponding to the dimensions of the product package to be manufactured. This fixed interval is a length obtained by adding a margin when punching in the punching step to the length in the longitudinal direction of the product package. This printed film is printed at a symmetrical position with respect to the half-folded center line so that when the printed film is folded in half and laminated on the front and back surfaces of the core sheet, the printed patterns on the front and back surfaces just overlap and match. I have. Therefore, it is necessary to accurately set the position of the bending line of the half-fold polymerization of the printing film in the first step described below.

In the manufacturing method of the present invention, first, while the strip-shaped printing film is continuously fed out in the first step, the half-folded polymerization is continuously performed along the substantially center line of the strip-shaped printing film. A band-shaped three-layer structure having a cross-sectional structure shown in FIG. 5 is formed by sandwiching a band-shaped core sheet made of polyolefin in the middle of the band-shaped printing film. If desired, the stack of strip-like three-layer structures can be fixed with an adhesive or partial fusion. In the second step of the manufacturing method of the present invention, the belt-shaped three-layered structure is converted into a one-pitch movement in which the continuously moved three-layered structure is moved at regular intervals identical to the printing pattern of the printing film. Is detected, and a predetermined print pattern of the strip-shaped three-layer structure is stopped at a predetermined position on the heat fusing table. On the other hand, the third step of the production method of the present invention is a step performed in synchronism with the second step, and in the position of the heat sealing table, a polyolefin sheet having a product to be stored and a concave portion for storing the product. This is a step in which the cover is transferred to a predetermined position on the heat welding table in the second step, and is left standing at a predetermined position of the belt-shaped three-layer structure that is stationary. The articles to be stored can be stored in advance in the recesses of the seat cover, and can be left on the heat-sealing table together with the seat cover, or can be left separately.
In the manufacturing method of the present invention, the belt-like 3
As for the positional relationship between the layer structure and the seat cover, it is a usual method to place the seat cover and the product on the band-shaped three-layer structure, but conversely, the belt-shaped three-layer structure is placed on the seat cover and the product. Methods of joining the bodies can also be used. In this case, the seat cover in which the product is stored in the concave portion can be left at a predetermined position on the heat welding table by one pitch movement.
In this case, the heat welding table is a hot plate corresponding to the shape of the peripheral edge of the seat cover, and a portion corresponding to the concave portion of the seat cover is missing. The seat cover is settled by fitting its concave portion to the missing portion of the fusion mount. The one-pitch movement of the seat cover desirably intersects vertically with the one-pitch movement of the belt-shaped three-layer structure. The fourth step of the manufacturing method of the present invention is a step of fixing the peripheral edge of the seat cover to the belt-shaped printing film on the upper surface of the belt-shaped three-layer structure by a heat-compression bonding means. This heat fusion can be performed by pressing the heated metal plate along the peripheral edge of the seat cover from the seat cover side or the strip-shaped three-layer structure side, and fusing the peripheral edge of the sheet cover to the print film. In this case, as a mode of the heat fusion of the present invention, adhesion by heat fusion of a heat-sensitive adhesive layer provided on the periphery of the seat cover or on the print film can be adopted. As a heat source, not only heat fusion using a hot plate or the like but also high-frequency fusion or ultrasonic fusion can be used as a heat source. The product is sealed in the concave portion of the seat cover by the fusion-fixing of the seat cover in the fourth step of the present invention. In the fifth step of the production method of the present invention, the strip-like three-layer structure is thermally cut and / or mechanically cut on the periphery of the seat cover fixed to the outside or outside the periphery of the seat cover, thereby obtaining the desired product package. This is a step of punching into the outer shape 9 of FIG. In the fifth step, it is desirable that the belt-shaped three-layer structure be moved from the heat-sealing table to the punching table by one-pitch transfer and punched out on the punching table. For this punching, either a punching means by mechanical cutting or a thermal punching means by a hot blade can be adopted. When punching with a hot blade, the outer periphery of the package is melted, so that the strength is increased, which is desirable. For example, when the adhesive force between the printing film of the belt-shaped three-layer structure used in the manufacturing method of the present invention and the core material sheet is weak, fusion with a hot blade is desirable. FIG. 6 is a view showing a situation in which a strip-shaped three-layer structure moving one pitch is punched on a punching table. In FIG. 6, first, the hanging holes 6 are punched out, and then the outer shape 9 of the package is obtained. The figure shows a state in which punching is performed. Here, the punched package is packed and shipped as a product, and the strip-shaped three-layer structure in which the punched space 5 is formed is wound up and collected as it is. Strip 3 collected here
For example, when all materials are made of polypropylene, the layered structure can be recovered as it is and regenerated into polypropylene resin pellets for molded articles. At this time, if the print pattern is limited to within approximately the same area as the punched shape, there is an advantage that the printing ink portion does not remain in the three-layered recovered belt-like structure and the recycled resin is not colored. Although FIG. 6 shows an embodiment in which two packages are taken per one belt-shaped three-layer structure, the manufacturing method of the present invention can be applied to a more-manufacturing method.

[0007]

According to the manufacturing method of the present invention, blister packages can be manufactured efficiently and continuously. Since the material is a polyolefin, no environmental problems arise.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a mount sheet portion used in the present invention.

FIG. 2 is a cross-sectional view of the product package of the present invention.

FIG. 3 is a front view of the product package of the present invention.

FIG. 4 is a front view of another embodiment of the product package of the present invention.

FIG. 5 is a cross-sectional view showing the structure of the strip-shaped three-layer structure of the present invention.

FIG. 6 is an explanatory diagram showing a state of a punching step of the manufacturing method of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Printing film 2 Printing film 3 Core material sheet 4 Sheet cover 5 Punching space 6 Hanging hole 7 Hanging hook 8 Peripheral edge of sheet cover 9 Package outer shape S Product

Claims (6)

[Claims] 1. An abbreviation of a strip-shaped printing film, wherein a strip-shaped printing film made of polyolefin having a printing pattern that repeats along a longitudinal direction is continuously fed out at regular intervals determined according to the dimensions of a product package. A process of forming a strip-shaped three-layer structure by stacking a polyolefin strip-shaped core material sheet in the middle of the strip-shaped printing film to be half-folded along the center line, and then moving at regular intervals. A step of detecting the printing pattern of the band-shaped three-layer structure by one-pitch movement, and stopping a predetermined printing pattern of the band-shaped three-layer structure at a predetermined position on the heat fusing table; synchronizing with the step; Then, a product to be stored and a polyolefin seat cover having a concave portion for storing the product are made to correspond to a predetermined position of the stationary three-layer structure at the position of the heat sealing table. A step of standing, the step of enclosing the periphery of the polyolefin sheet covers a strip printing film of the upper surface of the belt-shaped three-layer structure, the items in the recess of the seat cover by fixing by heat pressing means, then,
The band-shaped three-layer structure is thermally melted and / or cut on the periphery of the fusion-fixed seat cover or outside the periphery of the seat cover.
Alternatively, a method for producing a product package, comprising a step of punching the product package into a desired outer shape by mechanical cutting. 2. The method according to claim 1, wherein the material of the belt-shaped printing film and the seat cover is polypropylene. 3. The method for manufacturing a product package according to claim 1, wherein the punching is performed so that a hanging header portion is formed on an upper portion of the product package. 4. A concave shape is formed at a predetermined position on a printed polyolefin film on one side of a three-layer structure sheet laminated on both sides of a core sheet with the printed surfaces of the two printed polyolefin films facing inward. A product package, wherein a product is stored in a space formed between the printed polyolefin film obtained by fixing the periphery of the polyolefin seat cover by heat sealing and the polyolefin seat cover having a concave shape. 5. The product package according to claim 4, wherein the printed polyolefin film and the polyolefin seat cover are made of polypropylene. 6. The product package according to claim 4, wherein a hanging header portion is provided on an upper portion of the product package.