JP3131865U - Plastic packaging container - Google Patents

Abstract

[PROBLEMS] To provide a small amount of a resin film for heat-sealing the opening of a container even with a printed laminate film, and to easily provide a synthetic resin packaging container heat-sealed with a printed laminate film even if it is a variety of small-quantity products. To.
In a synthetic resin packaging container in which a resin film is thermally bonded to an opening and the opening is sealed with the resin film, the second resin film is placed on the first resin film capable of being thermally bonded. Is a laminate film laminated with an adhesive.
[Selection] Figure 1

Description

  The present invention relates to a packaging container made of a synthetic resin, and more particularly to a packaging container made of a synthetic resin that can accommodate a large amount of stored items.

Conventionally, a synthetic resin packaging container as shown in FIG. 5 has been provided. In this packaging container, the upper opening 16 of the synthetic resin container body 15 is heat sealed with a resin film 14 and sealed. The top sealing of the packaging container with the resin film 14 is performed, for example, in the steps shown in FIGS. 5 (a), (b), (c), and (d). FIG. 5 is an explanatory view showing an example of a conventional process for forming a top seal of a packaging container in the order of steps (a), (b), (c), and (d).
Fig.5 (a) has shown the original fabric of the resin film 13 wound by roll shape. As shown in FIG. 5 (b), the resin film 13 is cut into a size corresponding to the size of the opening 2 including the flange portion 17 of the container body 15, and the cut resin film 14 is shown in FIG. 5 (b) to 5 (c), it is thermally bonded to the flange portion 17 of the opening 16 of the container body 15. Next, a seal 18 is attached to the resin film 14 in which the opening 16 of the container body 15 is heat sealed as shown in FIGS. The seal 18 is printed with a product name, predetermined items, design, and the like.

In the conventional packaging container, since a sticker printed with a trade name, predetermined items, design, and the like is attached to the resin film to be top-sealed, it takes time and looks bad. Therefore, the top seal was made with a resin film on which the product name, specified items, design, etc. were printed. However, the gravure printing method is the mainstream for printing on conventional resin films, and the top seal is made by a thermal bonding method. Yes.
For this reason, if the resin film to be top-sealed is a laminate film, the processing process becomes complicated, and it is difficult to produce a variety of small quantities.
The present invention solves such a conventional problem and makes it possible to easily provide a small amount of a resin film for heat-sealing the opening of a container even if it is a printed laminate film. An object of the present invention is to easily provide a sealed synthetic resin packaging container.

In order to solve the above problems, the synthetic resin packaging container of the present invention is a synthetic resin packaging container in which the resin film is thermally bonded to the opening and the opening is sealed with the resin film.
The resin film is a laminate film in which a second resin film is laminated with a pressure-sensitive adhesive on a heat-bondable first resin film.
In addition, the second resin film of the laminate film is characterized in that all or part of the second resin film is adhered to the first resin film with an adhesive so as to be peeled off.
Further, the first resin film that can be thermally bonded has a predetermined hole formed therein.
Furthermore, the second resin film is printed.

As a result, the resin film that heat-seals the opening of the synthetic resin packaging container is a laminate film in which the second resin film is laminated with an adhesive on the heat-bondable first resin film. Can be made into a printed resin film by using the second resin film printed with a trade name and predetermined matters and designs. Therefore, since it is possible to prepare only the necessary amount of the printed second resin film, a resin film to be heat-sealed by preparing a printed second resin film suitable for various small-quantity products. Therefore, it is possible to cope with a printed resin film even in a variety of small-quantity products.
In addition, since a printed resin film (laminate film) is used, there is no need to stick a printed seal or the like after heat sealing as in the prior art, productivity is increased, and the added value of the product is improved.

In addition, since the resin film for heat sealing the opening of the synthetic resin packaging container is a laminate film in which the second resin film is laminated on the first resin film, the second resin film protects the first resin film, Strength is also improved.
In addition, the resin film for heat sealing the opening of the synthetic resin packaging container has the second resin film adhered to the heat-bondable first resin film so that all or part of the second resin film is peelable. Therefore, for example, if the product to be filled is a product in which water or seawater such as tofu or sea urchin is sealed, if the predetermined hole is formed in the first resin film, the second resin film is peeled off at the time of use. By doing so, the water and seawater in a container can be drained, and one part of a 2nd resin film can also be used as an application seal, such as a campaign.

In addition, the 1st resin film should just be a resin film which can be heat-bonded to a synthetic resin packaging container, and there is no restriction | limiting in particular, A conventionally well-known thing can be employ | adopted. For example, resin films such as polyethylene, polyamide, polypropylene, and polyvinyl chloride can be exemplified.
The second resin film is not particularly limited, and may be a thermoplastic resin or a thermosetting resin, and a conventionally known resin film can be adopted. Examples thereof include resin films such as polyvinyl chloride, polyethylene, polypropylene, melamine resin, and epoxy resin.

Moreover, what is necessary is just an adhesive as long as it can adhere | attach the 1st resin film and the 2nd resin film, and a conventionally well-known thing can be employ | adopted for it. Preferably, a preferable pressure-sensitive adhesive is selected depending on which resin is used for the first resin film and the second resin film.
When laminating | stacking a 1st resin film and a 2nd resin film so that peeling is possible with an adhesive, a conventionally well-known means is employable. For example, when ink or the like is applied onto the first resin film, the second resin film is laminated thereon with an adhesive, and the second resin film is peeled off, the ink or the like is applied to the adhesive surface of the second resin film. The structure which transfers and can peel can be illustrated. In short, the adhesive strength of the first resin film and the second resin film with the pressure-sensitive adhesive is reduced, and the film can be peeled off. Therefore, in order to enable partial peeling, the portion to be peeled may be configured as described above.

  Furthermore, the resin forming the synthetic resin packaging container may be a conventionally known resin used as a container, and may be a thermoplastic resin or a thermosetting resin. For example, polyethylene, polypropylene, polyvinyl chloride, polystyrene, ABS resin, phenol resin, epoxy resin, and the like can be mentioned. Using these resins, for example, injection molding, compression molding, blow molding, A container is manufactured by a vacuum forming method or the like. For example, a PET container is well known as a container.

According to the synthetic resin packaging container of the present invention, the following effects can be obtained.
(1) Since the resin film for heat-sealing the opening of the synthetic resin packaging container is a laminate film in which a second resin film is laminated with a pressure-sensitive adhesive on a heat-bondable first resin film, A film can be made into a printing resin film by using what printed a brand name, a predetermined matter, a design, etc. on the 2nd resin film. Therefore, since it is possible to prepare only the necessary amount of the printed second resin film, a resin film to be heat-sealed by preparing a printed second resin film suitable for various small-quantity products. Therefore, it is possible to cope with a printed resin film even in a variety of small-quantity products.

(2) Since a printed resin film (laminated film) is used, there is no need to stick a printed seal after heat sealing as in the conventional case, productivity is improved, and the added value of the product is improved. .
(3) Since the resin film for heat-sealing the opening of the synthetic resin packaging container is a laminate film in which the second resin film is laminated on the first resin film, the second resin film protects the first resin film. Strength is also improved.

(4) The resin film for heat-sealing the opening of the synthetic resin packaging container is bonded to the heat-bondable first resin film so that the second resin film is all or partly peelable with an adhesive. Therefore, for example, if the product to be stored is a product in which water or seawater such as tofu or sea urchin is sealed, if a predetermined hole is formed in the first resin film, the second resin film is used at the time of use. By peeling, the water and seawater in the container can be drained. Therefore, it is contained together with water and seawater such as tofu and sea urchin, and is optimal for use in products that require draining during use.
(5) Since the resin film that heat-seals the opening of the synthetic resin packaging container has a second resin film adhered to the heat-bondable first resin film so that a part of the resin film can be peeled off. The peelable portion of the second resin film can be used as a campaign application seal or a score seal.

  Hereinafter, a synthetic resin packaging container showing an embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is a partially cutaway perspective view of a synthetic resin packaging container showing a first embodiment of the present invention.

  In this synthetic resin packaging container, the resin film 4 is thermally bonded 8 to the upper opening 2 of the container body 1, and the opening 2 is sealed with the resin film 4. The container main body 1 is provided in a box shape with front, rear, left and right side walls connected to each other from the bottom plate, and an upper portion is formed in a box shape with an opening 2. The resin film 4 is thermally bonded 8 to the flange portion 3.

  Examples of the synthetic resin that forms the container body 1 include polyethylene, polypropylene, polyvinyl chloride, polystyrene, ABS resin, phenol resin, and epoxy resin. The container body 1 is manufactured by integrally molding by using, for example, an injection molding method, a compression molding method, a blow molding method, a vacuum molding method, or the like using these resins.

  The resin film 4 for heat sealing the opening 2 of the container body 1 is formed by laminating a second resin film 6 with an adhesive 7 on a first resin film 5 that can be thermally bonded to the flange portion 3 of the container body 1. It consists of a laminate film. In the resin film 4, the second resin film 6 is subjected to printing 9 such as a trade name and predetermined matters and designs, and the second resin film 6 to which the printing 9 is applied is laminated on the first resin film 5. Is formed on the printed resin film 4.

Such a synthetic resin packaging container is formed as follows. FIG. 2 is an explanatory view showing the steps of forming the synthetic resin packaging container in the order of steps (a), (b) and (c).
First, as shown in FIG. 2A, the printed resin film 4 is formed by laminating the second resin film 6 on which the printing 9 is applied on the first resin film 5 that can be thermally bonded with the adhesive 7. In FIG. 2 (a), both the first resin film 5 and the second resin film 6 are shown as rolls, but when the product is small, printing 9 of the second resin film 6 is performed. It is only necessary to be applied in the range of the corresponding length, and it is preferable to stack only the corresponding length so that there is little loss.
Next, as shown in FIG. 2 (b), the printed resin film 4 formed in (a) is cut into a size corresponding to the size of the opening 2 including the flange portion 3 of the container body 1, and this cutting is performed. The printed resin film 4 is thermally bonded to the flange portion 3 at the periphery of the opening 2 of the container main body 1, and the opening 2 of the container main body 1 in FIG.

  Thus, the resin film 4 for heat-sealing the opening 2 of the container body 1 is obtained by using the second resin film 6 printed with the product name, predetermined items, design, etc. can do. Accordingly, only the necessary amount of the printed second resin film 6 can be prepared. Therefore, the printed second resin film 6 corresponding to the second small quantity product is prepared and heat-sealed. Since it can be set as the resin film 4, even if it is a various small quantity product, it can respond as the printing resin film 4.

Also, since a printed resin film (laminate film) 4 is used, there is no need to stick a printed seal after heat sealing as in the conventional case, productivity is improved, and the added value of the product is beautiful and beautiful. Will also improve.
Further, since the resin film 4 for heat-sealing the opening 2 of the container body 1 is a laminated film in which the second resin film 6 is laminated on the first resin film 5, the second resin film 6 is the first resin film 5. Protects and improves strength.

  Moreover, as an adhesive which adhere | attaches (adheses) the 1st resin film 5 and the 2nd resin film 6, the conventionally well-known thing which can adhere | attach the 1st resin film 5 and the 2nd resin film 6 can be used. Since the adhesive strength (adhesive strength) of the pressure-sensitive adhesive varies depending on the type of resin, it is more preferable that the first resin film 5 and the second resin film 6 are made of a resin. Select the agent.

  In the above description, the lamination of the first resin film 5 and the second resin film 6 with the adhesive 7 may be made peelable. A conventionally known means can be adopted as the means for enabling the peeling. In other words, the adhesive strength of the printed second resin film 6 and the first resin film 5 with the pressure-sensitive adhesive 7 is reduced, and a peelable structure is obtained. For example, when ink or the like is applied on the first resin film, the second resin film is laminated thereon with an adhesive, and the second resin film is peeled off, the ink or the like is applied to the adhesive surface of the second resin film. The structure which transfers and can peel can be illustrated.

FIG. 3 is a perspective view of a synthetic resin packaging container showing a second embodiment of the present invention, and shows a case where the second resin film 6 is peelable.
In the synthetic resin packaging container of this example, the printed resin film 4 is provided with a hole 10 in the first resin film 5, and the first resin film 5 and the second resin film 6 provided with the hole 10 are provided with an adhesive. 7, the opening 2 of the container body 1 is formed in a peelable laminate film, and the opening 2 of the container body 1 is heat-sealed with the resin film 4, and the others are the same as in the first embodiment. .

Thus, according to the synthetic resin packaging container of the second embodiment, the opening 2 of the container body 1 is heat-sealed with the resin film 4, and in this state, the hole 10 of the first resin film 5 is also the first. 2 Since the resin film 6 is closed, the opening 2 is sealed, but the resin film 4 can be peeled off from the first resin film 5 in which the holes 10 are formed by the adhesive. Since it is a laminated film, the second resin film 6 can be peeled off from the first resin film 5 to expose the holes 10 of the first resin film 5 as shown in FIG.
In this synthetic resin packaging container, usually, a predetermined product is put in the container body 1 and sealed, and when used, the second resin film 6 is peeled off to expose the hole 10 of the first resin film 5. The liquid such as water in the container body 1 can be discharged from the hole 10. Therefore, when this synthetic resin packaging container is used to contain tofu and sea urchins, even if it is tofu or sea urchins with seawater, water and seawater are discharged during use ( Since it can be used after draining), it is optimal as a container for such products.

FIG. 4 is a perspective view of a synthetic resin packaging container showing a third embodiment of the present invention, and shows a case where a part of the second resin film 6 is peelable.
The resin film 4 of the synthetic resin packaging container of the present example is a laminate film in which a part of the second resin film 6 can be peeled off from the first resin film 5, and a cut line is formed in the peelable part of the second resin film 6. This is the case of the resin film 4 in which the seal 11 is detachably provided at 12, and the others are the same as in the first embodiment.
Thus, according to the synthetic resin packaging container of the third embodiment, as shown in FIG. 4, the seal 11 of the resin film 4 that heat-sealed the opening 2 of the container body 1 is cut off from the tear line 12 and the Since it can peel from 1 resin film 5, this seal | sticker 11 part can be used as an application seal, a score sticker, etc., such as a campaign. This eliminates the need to re-apply the application sticker and score sticker.

  The above embodiment does not limit the present invention, and the present invention allows various modifications without departing from the spirit of the present invention. For example, although the container body 1 of the embodiment is shown as a rectangular parallelepiped box, the shape of the container body 1 is not limited to this, and can be applied to various shapes.

1 is a partially cutaway perspective view of a synthetic resin packaging container showing a first embodiment of the present invention. FIG. It is explanatory drawing which shows the formation process of a synthetic resin packaging container in process order (a) (b) (c). It is a perspective view of the synthetic resin packaging container which shows 2nd Embodiment of this invention. It is a perspective view of the synthetic resin packaging container which shows 3rd Embodiment of this invention. It is explanatory drawing which shows a prior art example in formation process order (a) (b) (c) (d).

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Container body 2 Opening 3 Flange part 4 Resin film (laminate film)
5 First resin film 6 Second resin film 7 Adhesive 8 Thermal bonding 9 Printing 10 Hole 11 Seal 12 Cut line

Claims (4)

In a synthetic resin packaging container in which the resin film is thermally bonded to the opening and the opening is sealed with the resin film,
A synthetic resin packaging container, wherein the resin film is a laminate film in which a second resin film is laminated with an adhesive on a heat-bondable first resin film.   2. The synthetic resin packaging container according to claim 1, wherein the second resin film of the laminate film is adhered to the first resin film so that all or a part of the second resin film can be peeled off with an adhesive.   The synthetic resin packaging container according to claim 2, wherein a predetermined hole is formed in the first resin film capable of being thermally bonded.   The synthetic resin packaging container according to any one of claims 1 to 3, wherein the second resin film is printed.

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