JP6534547B2 - Food container - Google Patents

Food container Download PDF

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Publication number
JP6534547B2
JP6534547B2 JP2015069458A JP2015069458A JP6534547B2 JP 6534547 B2 JP6534547 B2 JP 6534547B2 JP 2015069458 A JP2015069458 A JP 2015069458A JP 2015069458 A JP2015069458 A JP 2015069458A JP 6534547 B2 JP6534547 B2 JP 6534547B2
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Prior art keywords
seal
opening
lid
open
layer
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JP2015069458A
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JP2016188103A (en
Inventor
宗人 若井
宗人 若井
森繁 直樹
直樹 森繁
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雪印メグミルク株式会社
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Description

The present invention relates to a food container which is a packaging material of food such as, for example, powdered cheese, sprinkled, dressing, confectionery, and beverage.

  For example, as a packaging material for food such as powdered cheese and sprinkles, a cylindrical container body having an opening at both ends and an opening at the top, and an open / close lid for opening and closing the opening is integrally formed via a hinge There is known a container comprising three parts, an upper lid removably attached to the upper portion of the container body and a bottom lid closing the lower opening of the container body (FIG. 6, or Patent Document 1) Furthermore, as a beverage or confectionery container, for example, a cup-shaped container main body and an opening at the top, and an open / close lid for opening and closing the opening is integrally formed via a hinge There is known a container configured to include two parts of an upper lid that is detachably attached to the upper part (Patent Document 2).

  In addition, in such a container, it is possible to apply a peelable inner seal to the opening of the container body in order to provide a sealing property.

Japanese Patent Application Laid-Open No. 11-76029 Unexamined-Japanese-Patent No. 2010-120308

  However, as shown in FIG. 6, after removing the upper lid 3 once at the start of eating, the conventional container described above peels and opens the inner seal 25 covering the opening of the trunk and attaches the upper lid 3 again for use. Because of this, there was a problem that it took time for the opening work.

The present invention is a container having the following features.
(1) and the opening provided in the cover portion is integrally molded with the lid portion includes a lid for covering an opening in an openable and closable, and an inner seal provided between the opening and closing lid, inner The seal is provided on one surface side of the inner seal, and an inner seal layer adhering to the edge of the opening, and a surface seal layer provided on the other surface side of the inner seal and adhered to the inner surface of the opening / closing lid A food container characterized in that the adhesive strength between the surface seal layer and the open / close lid is stronger than the adhesive strength between the inner surface seal layer and the edge of the opening.
(2) (1) A container according adhesion between the surface sealing layer of the lid and the inner seal, and at least one of adhesion of the edge portion of the opening portion and the inner seal of the inner surface sealing layer, hot melt A food container comprising a resin or a pressure sensitive adhesive.
(3) In the container of (1) or (2), the open / close lid is provided on the lid portion via the hinge, and the opening lid and the inner seal are adhered at least at the outer peripheral portion peeling start portion of the inner seal Food container characterized by
(4) In the container according to any one of (1) to (3), the inner seal is formed of a plurality of layers including at least one metal layer, and the inner seal is an inner seal of the edge of the opening and the inner seal. layer, and food containers, each of the surface sealing layer of the lid and the inner seal is characterized in that it is bonded.
(5) (4) A container according, food containers metal layer included in the inner seal is characterized in that it consists of aluminum.

  Since the adhesive strength between the opening and closing lid and the inner seal is higher than the adhesion strength between the opening and the inner seal, the inner seal sealing layer adhering to the opening peels off at the same time as pulling up the opening lid at the start of use. Therefore, it is possible to open up to the inner seal by one opening operation while maintaining the sealability of the contents.

Perspective view of a container according to an embodiment of the present invention A perspective view of a container according to another embodiment of the present invention A perspective view of a container according to still another embodiment of the present invention Cross section of an example of an inner seal A partial enlarged view showing an example of the bonding portion of the inner seal Perspective view of an example of a conventional container

Hereinafter, an embodiment of a container according to the present invention will be described with reference to the drawings.
[Configuration of container]
As shown in FIG. 1, the container according to the present embodiment is provided between the opening 40, the opening / closing lid 10 and the opening / closing lid 10 with the opening 40, the hinge-type opening / closing lid 10 and the body 30 integrally formed. The inner seal 20 and the bottom plug 2 closing the bottom opening 31 of the main body are provided. When the lid 10 is unopened and closed, the inner seal 20 adheres to the edge of the opening 40 on one side thereof, and the inner surface 11 of the lid on the other side is the opening side of the lid 10. Bonded with.

  The material of the main body 1 in which the hinge-type opening / closing lid 10 and the body portion 30 are integrally molded is a synthetic resin material such as polyethylene (PE), polypropylene (PP), polystyrene (PS), polyethylene terephthalate (PET), polylactic acid The thermoplastic resin such as PLA) can be formed, for example, by injection molding.

  The main body in which the hinge-type opening / closing lid 10 and the body portion 30 are integrally formed is formed so that when the opening / closing lid 10 is closed, the opening 40 located on the lower side is covered by the opening / closing lid 10.

[Configuration of inner seal]
The material of the inner seal 20 is a paper, a synthetic resin such as, for example, a thermoplastic resin such as ethylene (PE), polypropylene (PP), polystyrene (PS), polyethylene terephthalate (PET), polylactic acid (PLA), or aluminum. Metal foil. Alternatively, they may be formed of laminated or composite materials.

  The adhesion between the inner seal 20 and the edge of the opening 40 and the adhesion between the inner seal 20 and the inner surface 11 of the opening and closing lid are achieved by thermal welding, for example, heat sealing, high frequency sealing, ultrasonic sealing, or pressure sensitive adhesion. Ru.

  In the case of thermal welding, the surface seal layer 21 and the inner surface seal layer 22 of the inner seal 20 are “adhesive strength of the inner surface 11 of the open / close lid 11 and the surface seal layer 21> adhesive strength of the edge of the opening 40 and the inner surface seal layer 22 It is preferable that the following relationship be established. For example, when the container having the opening 40 and the open / close lid 10 is molded using PP, the surface seal layer 21 may be formed of PP such as non-oriented polypropylene (CPP) completely welded to PP. It is possible to use a hot melt resin or the like for light bonding.

  As a result, when the cover 10 is pulled up to open the container, the inner seal layer 22 of the inner seal 20 peels off from the opening 40, but the surface seal layer 21 does not peel off the inner surface 11 of the open cover. Since adhesion is maintained, peeling and unsealing of the unsealing lid and the inner seal becomes possible with one operation.

  Further, as shown in FIG. 4, the inner surface 11 of the open / close lid is preferably bonded to the outer peripheral portion 24 of the inner seal at least at the tip of the inner seal 20. By adhering the tip, unsealing can be reliably performed along the path when pulling up the open / close lid.

  When the inner seal 20 is sealed at a high frequency, a metal layer 23 such as aluminum foil is provided between the surface seal layer 21 and the inner seal layer 22 of the inner seal 20 as shown in FIG. The metal layer 23 generates heat when the surface seal layer 21 of the inner seal 20 and the inner surface 11 of the open / close lid are exposed to a high frequency while the back seal layer 22 of the inner seal 20 and the opening 40 are in contact with each other. The seal layer 21 and the back seal layer 22 can be melted and adhered to the opening lid inner surface 11 and the opening 40.

  Further, as shown in FIG. 2, an upper lid 3 having an opening 40 and a hinge-type opening and closing lid 10, an inner seal 20 adhering to the opening 40 and the opening and closing lid inner surface 11, and a tubular shape having openings at both ends. It may be configured to include a body 30 and a bottom plug 2 closing the bottom opening 31 of the body. The upper lid 3 and the body portion 30 are made of, for example, a thermoplastic resin such as polyethylene (PE), polypropylene (PP), polystyrene (PS), polyethylene terephthalate (PET), polylactic acid (PLA), etc. It can be formed by molding. When the upper lid 3 and the body portion 30 are not integrally formed as in the present embodiment, the upper lid 3 and the body portion 30 may be formed of different materials.

  In the embodiment shown in FIGS. 1 and 2, the body and the bottom plug of the container are separately provided, but as shown in FIG. 3, the upper cover 3 having the opening 40 and the hinged opening and closing lid, You may make it the structure provided with the inner seal | sticker 20 adhere | attached with the opening part 40 and the said opening-closing lid inner surface 11, and the bottomed cylindrical cup 4. FIG. The material of the bottomed cylindrical cup 4 is, like the upper lid 3, a synthetic resin material such as polyethylene (PE), polypropylene (PP), polystyrene (PS), polyethylene terephthalate (PET), polylactic acid (PLA), etc. It can be formed, for example, by injection molding using a plastic resin. In the case of the present embodiment, not only the openability is excellent, but it is not necessary to provide the inner seal between the upper lid 3 and the cup 4 as in the prior art, so the upper lid 3 and the cup 4 are welded and integrated This can prevent the leakage of contents and the entry of foreign matter from the gap between the upper lid 3 and the cup 4.

  As mentioned above, although embodiment of this invention and its effect were demonstrated along the Example, embodiment of this invention is not limited to the said Example. For example, the hinge-type lid 10 can be molded and assembled as different portions.

  As described above, the container of the present invention is capable of peeling the inner seal almost simultaneously with the opening of the hinge type opening lid while obtaining the sealing property by the inner seal, and enabling the opening of the container with a small opening operation. Can be expected to be widely used in food and other fields.

DESCRIPTION OF SYMBOLS 1 ... Body 2 ... Bottom plug 3 ... Top lid 4 ... Bottomed cylindrical cup 10 ... Opening-closing lid 11 ... Opening-closing lid inner surface 20 ... Inner seal 21 ... Surface Seal layer 22 ··· Inner surface seal layer 23 · · · Metal layer 24 · · · Outer peripheral portion 25 · · · Inner seal covering the body opening 30 · · · Body 31 · · · Bottom opening 40 · · · Aperture

Claims (5)

  1. An opening provided in the lid,
    An open / close lid that is integrally molded with the lid portion and covers the opening portion so as to open and close ;
    An inner seal provided between the opening and the opening / closing lid;
    The inner seal is provided on one surface side of the inner seal, and is provided on an inner surface sealing layer adhering to the edge of the opening and on the other surface side of the inner seal and bonded to the inner surface of the open / close lid A food container comprising a surface seal layer , wherein the adhesive strength between the surface seal layer and the open / close lid is stronger than the adhesive strength between the inner surface seal layer and the edge of the opening.
  2. At least one of the adhesion between the open / close lid and the surface seal layer of the inner seal and the adhesion between the edge of the opening and the inner surface seal layer of the inner seal is made of a hot-melt resin or a pressure-sensitive adhesive. A food container according to claim 1, characterized in that it is made.
  3. The open / close lid is provided on the lid portion via a hinge, and the open / close lid and the inner seal are bonded at least in the vicinity of an outer peripheral peeling start portion. Food container.
  4. The opening is formed by a plurality of layers including the inner seal including at least one metal layer, and the inner seal is exposed to a high frequency in contact with the edge of the opening and the opening / closing lid. of the inner surface sealing layer of the edge and the in-na Shiru, and according to any one of claims 1 to 3 in which each of the lid and the surface sealing layer of the in-Na Shiru is characterized in that it is bonded Food container.
  5. The food container according to claim 4, wherein the metal layer contained in the inner seal is made of aluminum .
JP2015069458A 2015-03-30 2015-03-30 Food container Active JP6534547B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2015069458A JP6534547B2 (en) 2015-03-30 2015-03-30 Food container

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2015069458A JP6534547B2 (en) 2015-03-30 2015-03-30 Food container

Publications (2)

Publication Number Publication Date
JP2016188103A JP2016188103A (en) 2016-11-04
JP6534547B2 true JP6534547B2 (en) 2019-06-26

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Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4925869B1 (en) * 1969-01-20 1974-07-04
JP2551637B2 (en) * 1987-09-09 1996-11-06 出光石油化学 株式会社 Hermetically sealed packaging container and manufacturing method thereof
JP2575770B2 (en) * 1988-01-18 1997-01-29 出光石油化学株式会社 Easy-open sealed container
JPH09110030A (en) * 1995-10-19 1997-04-28 Toppan Printing Co Ltd Composite container
JP2003321024A (en) * 2002-04-30 2003-11-11 Toppan Printing Co Ltd Container for beverage
US8584876B2 (en) * 2007-07-05 2013-11-19 Kraft Foods Group Brands Llc Food containers adapted for accommodating pressure changes using skip seals and methods of manufacture
JP5542508B2 (en) * 2010-04-01 2014-07-09 昭和電工パッケージング株式会社 Hot beverage container lid material
EP2514684A1 (en) * 2011-04-20 2012-10-24 Becton Dickinson France Packaging for medical containers
GB201107766D0 (en) * 2011-05-10 2011-06-22 Selig Sealing Products Inc Coloured tabbed container closure liners
CH708352A1 (en) * 2013-07-16 2015-01-30 Selig Sealing Products Inc Method and apparatus for creating a tear seam on packaging films.
JP6263907B2 (en) * 2013-08-30 2018-01-24 凸版印刷株式会社 Container sealing structure and inner seal material
JP2014061948A (en) * 2013-10-23 2014-04-10 Uni Charm Corp Package

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