JP2005132376A - Packaging method and package - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a packaging method which enables collective and efficient packaging of a plurality of articles, and a package. <P>SOLUTION: The packaging method for packaging a plurality of articles (4) collectively includes the following steps of; covering the articles placed on one surface of a tabular body (3) and the tabular body with a thermoplastic resin film (2) in a container, which can be pressurized and depressurized, sealing the container, heating the film (2) and evacuating the container, and creating an atmospheric pressure inside the container. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a packaging method and a packaging body for packaging an object to be packaged using a film and a plate-like body.

Conventionally, a technique for packaging precision instrument parts, electronic circuit boards, etc. using a plate-like body made of a cushioning material such as a blister pack or a polystyrene foam and provided with a depression of the mold of the package is known. ing. The blister pack refers to a package in which an object to be packaged is placed in a resin film case such as polyvinyl chloride / APET, and the film case is thermocompression bonded to a mount. Further, in order to separate the packaged items and shield them from the outside air, a package called a vacuum pack using a vacuum packaging material (for example, Patent Document 1) is proposed instead of such packaging.
JP 2000-294576 A

  However, when packaging with a blister pack, it is necessary to shape the film case in advance according to the shape of the package. Therefore, it takes time and effort to design and mold the film case. In addition, even if the film case is formed in accordance with the shape of the packaged object, the film case does not normally adhere to the packaged object, and there is a gap between the two, so the packaged object may be wobbled. . Accordingly, the blister pack packaging is not optimal when packaging precision instrument parts, electronic circuit boards, and the like.

  In addition, if a plate-shaped body made of a cushioning material such as polystyrene is provided with a depression of the mold of the package, and the package is packed in the depression, it takes time and labor to form the depression. End up.

  Further, when packaging an object to be packaged by a vacuum pack, a mold is required because a mold is used for packaging. And when installing a to-be-packaged object in an apparatus, since it has to arrange | position to a fixed position, it takes an effort. In addition, maintenance of the mold is required.

  The present invention covers a plurality of objects to be packaged and a plate-like body placed on one surface of a plate-like body with a film made of a heated thermoplastic resin, and after the vacuum process, the film is made into a plate-like body by atmospheric pressure. An object of the present invention is to provide a packaging method and a packaging body in which a plurality of objects to be packaged are packaged together by thermocompression bonding.

  (1) In order to achieve the above object, the packaging method of the present invention heats the plurality of objects to be packaged and the plate-like body placed on one surface of the plate-like body in a container that can be pressurized or depressurized. A step of covering with a film made of a plastic resin, a step of sealing the container, a step of heating the film to evacuate the inside of the container, and a step of bringing the inside of the container to atmospheric pressure. It is a feature.

  Thus, in the packaging method of the present invention, the heated film is heated to the plate-like body by the pressure of the air flowing in when the inside of the container used for thermocompression bonding of the film and the plate-like body is changed from vacuum to atmospheric pressure. Packaging is completed simply by crimping. Therefore, since the shape of the article to be packaged is not limited, it is not necessary to form the package into a mold that matches the shape of the article to be packaged. Furthermore, it is not necessary to adjust the arrangement of the objects to be packaged according to the type of the package, and the objects to be packaged can be arranged on the plate-like body and packaged together without being bothered by the arrangement. In addition, when using a vacuum packaging machine with a heater on the lid, if the heater is raised to a predetermined temperature in advance, the film will be heated simply by closing the lid and sealing it. Work for can be omitted. As a result, the packaging effort can be greatly reduced and the working time can be shortened. That is, the packaging operation can be made efficient.

  In the packaging method of the present invention, unlike a conventional blister pack or vacuum pack packaging method, a film heated by atmospheric pressure is pressure-bonded to a plate-like body without using a mold. This eliminates the need for mold design and maintenance. Since the film is heated without being formed into a package and is pressed onto the plate-like body, the package and the package can be brought into close contact with each other, and wobbling of the package during transportation can be eliminated.

  Further, since the film is thermocompression bonded to the plate-like body through the vacuum process, it is possible to prevent dust from adhering to the package.

  (2) Further, the packaging method of the present invention is characterized in that the plate-like body is made of foamed plastic such as foamed polyethylene, foamed polypropylene or foamed polyurethane.

  Thereby, the film made of a thermoplastic resin can be easily welded to the plate-like body made of foamed plastic, and can be easily peeled off. As a result, when packaging or taking the packaging, it does not take time and effort, and the work efficiency can be further improved.

  (3) Moreover, the package of the present invention includes a plate-shaped body, a plurality of packages to be packaged on one surface of the plate-shaped body, and a film made of a thermoplastic resin that covers the plate-shaped body, The film, the plurality of articles to be packaged, and the plate-like body are brought into vacuum contact with each other, and the film is thermocompression-bonded to the plate-like body.

  As described above, the packaging body of the present invention thermocompression-bonds the heated film to the plate-like body by the pressure of the air flowing when the inside of the container used for crimping the film and the plate-like body is changed from vacuum to atmospheric pressure. And wrap it. Therefore, since the package of the present invention can be packaged regardless of the shape of the package, it is not necessary to form the package into a mold that matches the shape of the package. Furthermore, when packaging, it is not necessary to adjust the arrangement of the packaged object according to the mold of the packaged body, and the packaged object can be arranged on the plate-like body and packaged without worrying about the arrangement. . In addition, when using a vacuum packaging machine with a heater on the lid, if the heater is raised to a predetermined temperature in advance, the film will be heated simply by closing the lid and sealing it. Work for can be omitted. As a result, the packaging effort can be greatly reduced and the working time can be shortened. That is, the packaging operation can be made efficient.

  In addition, when the plate-like body is formed of foamed plastic, there is a positional relationship in which the packaged object is sandwiched between the film and the plate-like body. The plate-like body made of foamed plastic constituting the film serves as a cushioning material for the upper and lower packages, and even if no cushioning material is provided between them, the impact on the package can be sufficiently prevented. As a result, when the packaging body according to the present invention is packed in a box, the packaged object can be stored so as not to be impacted and bulky.

  Moreover, in the package of this invention, unlike the package of the conventional blister pack and a vacuum pack, the film heated by atmospheric pressure is crimped | bonded to a plate-shaped object, without using a metal mold | die. This eliminates the need for mold design and maintenance. Since the film is heated without being formed into a package and is pressed onto the plate-like body, the package and the package can be brought into close contact with each other, and wobbling of the package during transportation can be eliminated.

  Moreover, since the film is pressure-bonded to the plate-like body through the vacuum process, it is possible to prevent dust from adhering to the package.

  (4) Moreover, the package of the present invention is characterized in that the plate-like body is formed of foamed plastic such as foamed polyethylene, foamed polypropylene, and foamed polyurethane.

  Thereby, the film made of a thermoplastic resin can be easily welded to the plate-like body made of foamed plastic, and can be easily peeled off. As a result, when packaging or taking the packaging, it does not take time and effort, and the work efficiency can be further improved.

  According to the present invention, packaging is completed simply by thermocompression of the heated film to the plate-like body by the pressure of the air flowing when the inside of the container used for crimping the film and the plate-like body is changed from vacuum to atmospheric pressure. To do. Therefore, since the shape of the article to be packaged is not limited, it is not necessary to form the package into a mold that matches the shape of the article to be packaged. Furthermore, it is not necessary to adjust the arrangement of the objects to be packaged according to the type of the package, and the objects to be packaged can be arranged on the plate-like body and packaged together without being bothered by the arrangement. Also, if a heater is provided on the lid of the container of the vacuum packaging machine, if the heater is raised in advance to a predetermined temperature, the film is heated just by closing and sealing the lid, The work for heating can be omitted. As a result, the packaging effort can be greatly reduced and the working time can be shortened. That is, the packaging operation can be made efficient.

  Also, unlike conventional blister pack and vacuum pack packaging methods, the design and maintenance of the mold is not required by thermocompressing the film heated by atmospheric pressure to the plate-like body without using the mold. can do. Since the film is heated without forming the package and thermocompression-bonded to the plate-like body, the package and the package can be brought into close contact with each other, and wobbling of the package during transportation can be eliminated.

  Further, since the film is thermocompression bonded to the plate-like body through the vacuum process, it is possible to prevent dust from adhering to the package.

  Hereinafter, the best mode for carrying out the present invention will be described. FIG. 1 is a perspective view of a package 1 and a package 4 according to the present invention. As shown in FIG. 1, the packaging body 1 according to the present invention includes a film 2 made of thermoplastic resin and a plate-like body 3 made of foamed plastic. The film made of a thermoplastic resin refers to a film made of a resin capable of obtaining a plasticity that can be molded by heating. For example, it is a film formed of polypropylene, polyethylene, polystyrene, polyvinyl chloride, polyvinylidene chloride, nylon or the like. As the plate-like body made of foamed plastic, for example, a plate-like body made of foamed polyolefin such as foamed polypropylene or foamed polyethylene, foamed polyurethane or foamed polystyrene can be used. An article to be packaged refers to an article packaged in a package according to the present invention, and includes, for example, precision parts such as a camera shutter and the like that require a cushioning package for transportation. As shown in FIG. 1, a packaged object 4 is sandwiched and packaged between a thermoplastic resin film 2 and a foamed plastic plate 3, and a portion close to the packaged object 4 is disposed. Except for this, the film 2 is thermocompression bonded to the plate-like body 3. Thermocompression bonding means that both or one of the materials is plasticized by heat and bonded under pressure. The film 2 has a shape in which a peripheral portion is cut out along the rectangular shape of the plate-like body 3 so as to be easily packed during transportation. About a to-be-packaged object, the packaging by the package which concerns on this invention is possible regardless of the shape or material especially.

  FIG. 2 is a cross-sectional view of a part of the package body and the package object according to the present invention. The package 4 shown in FIG. 2 has a rectangular cross section, and one bottom surface thereof is in contact with the surface of the plate-like body 3 and the other bottom surface is in close contact with the film 2. Further, in the side surface direction of the article to be packaged 4, a gap is generated in a region surrounded by the film 2, the plate-like body 3 and the article to be packaged 4. For this reason, the film 2 is not in contact with the plate-like body 3 in the area close to the packaged object 4, and is thermocompression bonded to the plate-like body 3 in the other areas.

  Next, the packaging method according to the present invention for forming the package 1 configured as described above will be described with reference to the drawings. FIG. 3 is a flowchart showing characteristic steps of the packaging method according to the present invention. In the process of the packaging method described in this embodiment, a vacuum packaging machine is used. A vacuum packaging machine is an apparatus that includes a container that can be pressurized and depressurized and that can create a vacuum state therein, and that includes means for heating the inside of the container. The container inside the vacuum packaging machine is connected to a vacuum pump such as a rotary pump by piping, and the internal pressure can be reduced. It is also possible to return the inside of the container to atmospheric pressure by opening the leak valve of the container. In addition, the lid of the container of the vacuum packaging machine is provided with a heater in which a heating wire such as a nichrome wire is embedded, so that the inside of the container can be heated.

  First, as shown in FIG. 4, a plurality of articles to be packaged 4 are arranged on the surface of a plate-like body 3 made of foamed plastic (step S1). The arrow in the figure represents the direction in which the article 4 is placed on the plate-like body 3. It is not necessary to form the package 1 in accordance with the shape of the package 4 and it is not necessary to adjust the arrangement of the package 4 in accordance with the mold of the package 1, so that the plate-like body is not troubled by the arrangement. 3 to be packaged 4 can be arranged. As a result, labor and time can be saved, and work efficiency can be improved. In addition, although the plate-shaped body 3 is previously installed in the container of a vacuum packaging machine, and the to-be-packaged goods 4 may be arranged on the surface of the plate-shaped body 3, after that, the process of said step S1 is performed first. Thus, the objects to be packaged 4 can be arranged in a place with sufficient space such as on a desk, and the work efficiency can be further improved.

  Next, as shown in FIG. 5, the plate-like body 3 made of foam plastic on which the article to be packaged 4 is placed is placed in the container of the vacuum packaging machine 10 (step S2). In addition, the plate-shaped body 3 may be previously installed in the container of the vacuum packaging machine 10, and then the packaged objects 4 may be arranged on the surface of the plate-shaped body 3. In this case, in particular, when it is difficult to carry the plate-like body 3 while the article to be packaged 4 is placed due to the shape of the article to be packaged 4 or the like, work efficiency can be improved. The lid portion 10a of the container of the vacuum packaging machine 10 is provided with a heater 11 in which a heating wire such as a nichrome wire is embedded. The heater 11 is previously heated to a predetermined temperature and kept constant. .

  Next, as shown in FIG. 6, the article 4 to be packaged and the plate-like body 3 made of foamed plastic are covered with a film 2 made of thermoplastic resin (step S3). The arrow in the figure represents the direction in which the film 2 is pulled.

  Next, as shown in FIG. 7, the lid 10a of the container in the vacuum packaging machine 10 is closed, and the container is sealed (step S4). The film 2 made of thermoplastic resin is heated by closing the lid 10a provided with the heated heater 11 (step S5). By heating, the film 2 changes to a state where it can be sufficiently plastically deformed at a pressure of about atmospheric pressure. When using the vacuum packaging machine 10 in which the heater 11 is provided on the lid 10a, if the heater 11 is raised to a predetermined temperature in advance, the film 2 is heated only by closing and sealing the lid 10a. Therefore, the work for heating can be omitted. When foamed polyolefin, such as foamed polyethylene or foamed polypropylene, or foamed polyurethane is used as the thermoplastic resin of the plate-like body 3 made of foamed plastic, the film 2 made of thermoplastic resin is thermocompression bonded to the plate-like body 3. It can be made easy and easy to peel off. As a result, when packaging or taking the packaging, it does not take time and effort, and the work efficiency can be further improved. On the other hand, when foamed polystyrene is used as the thermoplastic resin of the plate-like body 3 made of foamed plastic, the degree of bonding between the film 2 and the plate-like body 3 is increased, so that the packaged item 4 is heavy or large. In such a case, the film 2 can be prevented from peeling off from the plate-like body 3.

  Next, the inside of the container of the vacuum packaging machine 10 is depressurized to a vacuum by a vacuum pump (step S6). Note that in this embodiment, the decompression step is performed after the heating step, but both steps may be performed simultaneously, the decompression step may be performed first, and then the heating step may be performed. Next, the leak valve of the container is opened, and the atmospheric pressure inside the container is increased to atmospheric pressure (step S7). At that time, since air flows from the opposite side of the plate 2 of the film 2 and pressure is applied to the film 2, the film 2 is pressed against the plate 3 and welded to the plate 3.

  As described above, in the packaging method of the present invention, the packaging is completed simply by pressure-bonding the heated film 2 with the pressure of the air flowing when the inside of the container is changed from vacuum to atmospheric pressure. Therefore, since the shape of the package 4 is not limited, it is not necessary to mold the package 1 into a mold that matches the shape of the package 4. Furthermore, it is not necessary to adjust the arrangement of the package 4 according to the mold of the package 1, and the packages 4 can be arranged on the plate-like body 3 and packaged together without being bothered by the arrangement. .

  Also, unlike conventional blister packs and vacuum packs, the film 2 heated by atmospheric pressure is pressure-bonded to the plate-like body 3 without using a mold, eliminating the need for mold design and maintenance. can do. Moreover, in order to heat the film 2 without shape | molding a package body and to crimp | bond to the plate-shaped body 3, the package body 1 and the to-be-packaged object 4 can be closely_contact | adhered, and the wobbling of the to-be-packaged object 4 during transport is possible. It can be lost. Moreover, since the film 2 is pressure-bonded to the plate-like body 3 by vacuum, it is possible to prevent the dust from adhering to the package 4.

  Next, as shown in FIG. 8, the lid 10 a of the container of the vacuum packaging machine 10 is opened, and the package 1 that wraps the package 4 with the film 2 and the plate-like body 3 is taken out from the inside of the container. The portion of the film that protrudes from the plate-like body becomes an obstacle when packing the packaging body 1 that wraps the article to be packaged 4 for transportation. Therefore, as shown in FIG.

  Next, as shown in FIG. 10, a packaging body 1 for packaging a plurality of articles 4 for packaging is stacked, and a buffer is placed on the surface of the stacked packaging body 1 where the outermost film 2 is exposed. The material 20 is stacked. Since there is a positional relationship in which the object to be packaged 4 is sandwiched between the film 2 and the plate-like body 3 made of foamed plastic, when the packaging body 1 of the present invention is stacked and packed in a box, the foamed plastic constituting the packaging body 1 The made plate-like body 3 serves as a cushioning material for the upper and lower packages 4, and even if no cushioning material is provided between them, the impact on the package 4 can be sufficiently prevented. As a result, when the packaging body 1 according to the present invention is packed in a box, the article to be packaged 4 can be stored so as not to be impacted and bulky.

  As shown in FIG. 11, the stacked body 1 and the cushioning material are bundled using a binding band 21 and packed in a transport box 22. When foamed polyolefin such as foamed polyethylene or foamed polypropylene or foamed polyurethane is used as the material of the plate-like body 3, the degree of thermocompression between the film and the plate-like body does not become too strong, and the film 2 is removed after transportation. It is easy to peel off when it peels off from the state body 3 and opens a package. Accordingly, when foamed polyolefin such as foamed polyethylene or foamed polypropylene or foamed polyurethane is used as the material of the plate-like body 3, the work efficiency can be further improved. In this way, by performing the steps described in this embodiment, it is possible to greatly reduce the packaging effort and shorten the work time. That is, the packaging operation can be made efficient.

  Examples of the present invention are shown below. First, shutters of a plurality of cameras were arranged on the surface of a plate-like body made of foamed polypropylene (Eperan: registered trademark) as an object to be packaged. Arrangements were arranged so that they were equally spaced according to the scale. The FPC portion (flexible printed wiring board) that forms a part of each shutter was arranged so that adjacent parts overlap each other. Thus, the foamed polypropylene plate-like body on which the camera shutter was placed was placed in the container of the vacuum packaging machine.

  As the vacuum packaging machine, a heater in which a heating wire of nichrome wire was embedded in the lid part and a vacuum packaging machine in which a rotary pump was built in the main body part was used. The heater was previously held at 100 ° C. A plate made of foamed polypropylene on which camera shutter parts were placed was covered with a polyvinyl chloride film, the lid of the vacuum packaging machine container was closed, and the film was heated. Polyvinyl chloride is known to exhibit sufficient plasticity at a temperature of about 60 ° C. to 70 ° C. or higher. Next, the rotary pump was turned on, and the inside of the vacuum packaging machine was depressurized to a vacuum of about 266.644 Pa (Pascal).

  Next, the leak valve was opened and the pressure inside the container was increased to atmospheric pressure. The lid of the vacuum packaging machine was opened, and the package for packaging camera shutter parts was taken out from the inside of the container. About the part of the film which protruded from the plate-shaped object, it cut out with the cutter etc. A packaging body for packaging a plurality of camera shutter parts for packaging was stacked, and a cushioning material was stacked on the surface where the endmost film was exposed. A stack of the package and the cushioning material was bundled using a binding band and packed in a shipping box.

  The time from packaging to packaging took about 1 hour per box in the case of a conventional blister pack, but it could be shortened to about 30 minutes by performing the packaging method according to the present invention. The box was transported 400 km to the courier and opened. About each package, the film and the plate-like body maintained the joining by welding. Further, when the film was peeled off and the shutter part for the camera was taken out, the bonding strength between the thermocompression bonding portion of the film and the plate-like body was such that it could be easily peeled off by a normal operator's arm strength. When the characteristics of the taken-out camera shutter parts were inspected, no problems were caused by the impact. Further, the FPC portions that overlap each other were not particularly damaged.

It is a perspective view of a package and a packaged article according to the present invention. It is sectional drawing of a part of package body which concerns on this invention, and an article to be packaged. It is a flowchart which shows the characteristic process of the packaging method which concerns on this invention. It is a perspective view which shows one scene of the process of the packaging method which concerns on this invention. It is a perspective view which shows one scene of the process of the packaging method which concerns on this invention. It is a perspective view which shows one scene of the process of the packaging method which concerns on this invention. It is a perspective view which shows one scene of the process of the packaging method which concerns on this invention. It is a perspective view which shows one scene of the process of the packaging method which concerns on this invention. It is a perspective view which shows one scene of the process of the packaging method which concerns on this invention. It is a perspective view which shows one scene of the process of the packaging method which concerns on this invention. It is a perspective view which shows one scene of the process of the packaging method which concerns on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Packing body 2 Film 3 Plate-shaped body 4 Packaged object 10 Vacuum packaging machine 10a Lid part of vacuum packaging machine 11 Heater 20 Buffer material 21 Band 22 Box

Claims (4)

A packaging method for packaging a plurality of packages to be packaged,
A step of coating the plurality of articles to be packaged and one of the plate-like bodies placed on one surface of the plate-like body with a film made of a thermoplastic resin in a container capable of pressurization and depressurization;
Sealing the container;
Heating the film and evacuating the container;
Bringing the inside of the container to atmospheric pressure;
A packaging method comprising:     The packaging method according to claim 1, wherein the plate-like body is formed of foamed plastic such as foamed polyethylene, foamed polypropylene, or foamed polyurethane. A package that collectively packages a plurality of packages,
A plate-like body;
It is composed of a plurality of articles to be packaged placed on one surface of the plate-like body and a film made of a thermoplastic resin that covers the plate-like body,
The film, the plurality of articles to be packaged, and the plate-like body are in vacuum contact, and the film is thermocompression-bonded to the plate-like body.   The package according to claim 3, wherein the plate-like body is made of foamed plastic such as foamed polyethylene, foamed polypropylene, or foamed polyurethane.