Packaging container and packaged product contained in said packaging container, and manufacturing method and manufacturing apparatus for said packaging container

a packaging container and packaging technology, applied in the field of packaging containers, can solve the problems of deteriorating the aesthetic appearance of the packaging container, affecting the sealing performance of the above-mentioned packaging container, and spilling of liquid content,

Inactive Publication Date: 2017-01-05
INAGAKI HIROMICHI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention is about a packaging container that allows for the display of its contents in a three-dimensional way while still ensuring sealing performance. This invention is a cost-effective and efficient way to provide packaged products to consumers. Additionally, the patent describes the manufacturing method and apparatus for this packaging container.

Problems solved by technology

Although the packaging container described above has its container main body and lid material fixed to each other with a shrink film or adhesive tape, when the contents thereof include a liquid content, the liquid content spills when the packaging container is tilted, because the lid material is fitted into the container main body.
Especially when the entire packaging container is wrapped with the shrink film, the liquid matter leaks into the gap between the packaging container and the shrink film, significantly deteriorating the aesthetic appearance of the packaging container.
In addition, the ability to ensure sealing performance of the packaging container significantly affects food hygiene and the expiration date of the contained food product, and is therefore crucial for the packaging container.
Unfortunately, sealing performance of the above-mentioned packaging container has not yet been ensured.
Although the use of a shrink film to wrap entirely the container main body and the lid material appears to be able to achieve sealing performance, sealing performance is, in fact, not ensured due to the air holes which are formed in the shrink film in order to let air out when heat-shrinking the shrink film.

Method used

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  • Packaging container and packaged product contained in said packaging container, and manufacturing method and manufacturing apparatus for said packaging container
  • Packaging container and packaged product contained in said packaging container, and manufacturing method and manufacturing apparatus for said packaging container
  • Packaging container and packaged product contained in said packaging container, and manufacturing method and manufacturing apparatus for said packaging container

Examples

Experimental program
Comparison scheme
Effect test

embodiment 1

[0158]FIG. 8 shows an example of the configuration of the manufacturing apparatus for the packaging container according to the present invention. The apparatus shown in FIG. 8 is an example of an apparatus for heat-sealing a lid material to a container main body that has a quadrangular bottom face part, a pair of opposing sidewall parts in the shape of a triangular roof, and another pair of rectangular sidewall parts. The container main body is placed and conveyed in such a manner that the pair of opposing sidewall parts in the shape of a triangular roof is perpendicular to the conveyance direction of the container main body. This apparatus heat-seals the lid material to a flange of the container main body by using a heat-seal block.

[0159]In the manufacturing apparatus shown in FIG. 8, as mentioned above, a plurality of container main bodies (701) are arranged on a conveyor (703) and conveyed in such a manner that a pair of opposing sidewall parts in the shape of a triangular roof i...

embodiment 2

[0163]An example of a manufacturing apparatus that is configured to heat-seal a flange of a container main body and a lid material to each other in a vacuum chamber is described hereinafter with respect to the manufacturing apparatus for a packaging container described in Embodiment 1.

[0164]FIG. 9 is a diagram showing an example of a configuration of the vacuum chamber. As shown in FIG. 9, the vacuum chamber has a chamber main body (751) and a chamber lid (752) that can come into abutment with the chamber main body. The vacuum chamber is formed into a sealed vacuum chamber by bringing these chamber main body and chamber lid into abutment with each other. The chamber main body (751) is provided with a container support base (753) on which each container main body is mounted.

[0165]The flanges of the container main bodies and the lid material are heat-sealed to each other in the vacuum chamber, wherein, as in Embodiment 1, the lid material is abut with the plate and thereby deformed in...

embodiment 3

[0170]Another example of the configuration of the manufacturing apparatus for a packaging container according to the present invention is shown in FIG. 10. The apparatus shown in FIG. 10 is an example of an apparatus that arranges and conveys a container main body in such a manner that a pair of opposing sidewall parts thereof is parallel to the conveyance direction of the container main body, the container main body having a quadrangular bottom face part, the pair of opposing sidewall parts in the shape of a triangular roof, and the remaining other pair of rectangular sidewall parts.

[0171]In the manufacturing apparatus shown in FIG. 10, as described above, a plurality of container main bodies (801) are arranged on a conveyor (803) and conveyed in such a manner that a pair of opposing sidewall parts in the shape of a triangular roof of each container main body is parallel to the conveyance direction of the container main bodies. From above, a lid material (802) formed of a film or s...

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PUM

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Abstract

The purpose of the present invention is to provide: a packaging container that can be industrially mass-produced, that can be used as Modified Atmosphere Packaging (MAP) while ensuring sealing performance, and that allows contents to be displayed in a three-dimensional manner; a packaged product contained in the packaging container; and a manufacturing method and manufacturing apparatus for the packaging container. This packaging container has: a container main body having a bottom face part and sidewall parts, and having a flange at the upper end part periphery of the sidewall parts; and a lid material heat-sealed to the flange. The lid material is made of a film or sheet. A pair of opposing sidewall parts has the same shape, and upper end parts of the pair of side wall parts are at least positioned higher than the upper end parts of another pair of opposing sidewall parts.

Description

[0001]This is a divisional of prior U.S. application Ser. No. 14 / 425 959, which was the national stage of International Application No. PCT / JP2013 / 073499, filed Sep. 2, 2013.TECHNICAL FIELD[0002]The present invention relates to packaging containers for containing various types of food products such as packaged lunches (“bento” in Japanese language), noodles and side dishes, the packaging container being formed of a main body and a base material.BACKGROUND ART[0003]A packaging container for containing food items such as packaged lunches, noodles and side dishes uses a lid material formed of a transparent sheet or film to enable visibility of the contents thereof.[0004]For instance, a lid material formed of a sheet or the like is internally or externally fitted into an opening part of a container main body, and the container main body and the lid material are wrapped with a shrink film. For this type of packaging container, there is a case in which the container main body and the lid ...

Claims

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Application Information

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Patent Type & AuthorityApplications(United States)
IPC IPC(8): B65D81/34B65D6/00B65D21/02B65B51/10B65D51/16B65B7/16B65B31/02B65D1/34B65D43/02
CPCB65D81/3453B65D1/34B65D11/10B65D21/023B65B51/10B65D51/1638B65B7/164B65B31/028B65D43/0233B65D77/2024B65D81/2076B65D81/34B65B61/065B65D21/0233B65D81/3446
InventorINAGAKI, HIROMICHITAKAHASHI, SAKARU
OwnerINAGAKI HIROMICHI