JP3087148U - Packaging containers for fermented foods - Google Patents

Abstract

(57) [Problem] To provide a packaging container for fermented food, which is easy to manufacture, can reduce cost, has good gas release performance, and is excellent in appearance and safety. SOLUTION: A fermented food product 10 such as miso is accommodated inside a synthetic resin container body 1 having an open top surface having a flange portion 2 formed on an outer peripheral edge of an upper end. A through hole 4 is provided at the center of the gas barrier sealing sheet 3 to be sealed in the flange portion 2.
The non-transparent sheet 5 covering the closing sheet is placed on the closing sheet 3, and the lid 6 made of synthetic resin is further placed thereon.
Put on. The lid 6 is locked to the flange 2 of the container main body at a peripheral wall 7 connected to the outer peripheral edge 6b. The non-transparent sheet 5 is formed in a size substantially matching the shape of the upper surface including the flange portion 2 of the container body,
And the cover 6 are held at a predetermined position.

Description

[Detailed description of the invention]

[0001]

[Industrial applications]

 The present invention relates to a packaging container used to accommodate fermented foods such as miso.

[0002]

[Prior art]

 As is well known, fermented foods, such as miso, generate fermentation gas, that is, carbon dioxide gas, upon fermentation. Once the miso once commercialized is filled in the packaging container, the fermentation further proceeds in the distribution process and at the store, and the carbon dioxide gas generated may cause the packaging bag and the like to bulge, which is not preferable. For this reason, fermentation inhibitors such as alcohol and preservatives have been added and sealed in containers, but the use of such additives impairs the original taste.

[0003] Therefore, as a packaging container for miso that does not use a fermentation inhibitor, a packaging container having means for discharging fermentation gas to the outside of the container has been proposed. For example, a one-way valve is attached to an inner lid that is heat-sealed to the container body (Japanese Utility Model Laid-Open No. 62-72991), and a synthetic resin closing plate 5 having an appropriate number of small through holes 7 is used. A container in which the container is welded to the opening and closed, and a transparent cap 8 is fitted (Japanese Utility Model Application Laid-Open No. 61-80288) is known.

[0004]

[Problems to be solved by the invention]

 However, in the former case, the one-way valve attached to the inner lid has a thickness and partially protrudes from the inner lid, so that the stacking is difficult to stabilize due to this projection, which may hinder automatic packaging. is there. In addition, the cost of the one-way valve increases, and an installation process is required. In the latter case, foreign substances easily enter the inside from the small through-holes, and the small through-holes of the synthetic resin plate can be seen through the transparent cap, resulting in poor appearance and high safety. Not really.

The present invention has been made to solve such problems of the prior art, and is easy to manufacture, can reduce costs, has good gas release performance, and has good appearance and safety. It is an object of the present invention to provide a packaging container for fermented food having excellent properties.

[0006]

[Means for Solving the Problems]

 In order to achieve the above object, the packaging container for fermented food of the present invention comprises: (1) A fermented food is accommodated inside a synthetic resin container body having an open top surface having a flange portion formed at an upper peripheral edge, and In the packaging container for fermented food sealed with a sealing sheet having a gas barrier property at a flange portion, a through-hole is provided in a central portion of the closing sheet, and a non-transparent sheet covering the closing sheet is provided on the closing sheet. A synthetic sheet, and a synthetic resin cover is further placed on the sheet.

[0007] Further, it has the following configuration. (2) The non-transparent sheet is formed in a size substantially matching the shape of the upper surface including the flange portion of the container body, and is held at a predetermined position between the closing sheet and the lid. I have. (3) The lid is locked to the flange of the container body at a peripheral wall portion connected to an outer peripheral edge thereof. (4) The non-transparent sheet was made of paper, and the surface of the sheet was printed with a product name and other printed information. (5) The fermented food is miso.

[0008]

[Embodiment of the invention]

 An embodiment of the present invention will be described based on an embodiment shown in the drawings. FIG. 1 is a longitudinal sectional view of a packaging container for fermented food showing one embodiment of the present invention, FIG. 2 is a longitudinal sectional view showing a configuration example of a closing sheet 3, and FIG. is there.

Reference numeral 1 denotes an open-top synthetic resin container body having a flange 2 formed on the outer peripheral edge of the upper end. Usually, a hard material vacuum-formed using a transparent thermoplastic resin is used. Those composed of a single layer or a plurality of layers using a synthetic resin such as polypropylene as a base material are preferably used. The plane shape of the container main body 1 can be formed in a square shape, a rectangular shape, a circular shape, or the like, and is not particularly limited. The outer edge of the flange portion 2 further has a downward bent portion 2a.

Reference numeral 3 denotes a closing sheet. The sealing sheet 3 is sealed by bonding it to the flange 2 of the container body 1. That is, the opening on the upper surface of the container body 1 is sealed by the closing sheet 3. The closing sheet 3 is formed in a size substantially matching the shape of the upper surface including the flange portion 2 of the container body 1. The closing sheet 3 has a gas barrier property, and is preferably a composite synthetic resin film or a synthetic paper having a gas barrier layer such as an aluminum foil layer, and a sheet having a sealant layer in the innermost layer is preferably used. Can be For example, as shown in FIG. 2, a paper 3a is formed by laminating an aluminum layer 3b and a hot-melt adhesive layer 3c such as polyethylene on one surface (surface on the container body side). The innermost hot melt adhesive layer 3c can be sealed by heat sealing to the flange 2 of the container body 1. As the hot melt adhesive layer 3c, for example, polyethylene, ethylene-vinyl acetate copolymer, or other known hot melt adhesives can be used. The thickness of the closing sheet 3 is usually about 100 to 200 μm.

A through hole 4 is provided in the center of the closing sheet 3. One or a plurality of the through holes 4 can be formed. However, instead of providing the through holes 7 over the entire area of the synthetic resin closing plate 5 as described in the above-mentioned Japanese Utility Model Application Laid-Open No. 61-80288, the present invention avoids the outer peripheral side of the closing sheet 3. , Provided at the center. 3A shows an example in which only one through hole 4 is provided, and FIG. 3B shows an example in which four through holes 4 are provided. The size of the through-hole 4 is not particularly limited, but can be, for example, about 1 to several mm for a miso container. Reference numeral 3e denotes a knob for easily peeling off the closing sheet 3 from the container body 1.

A non-transparent sheet 5 that covers the closing sheet 3 is placed on the closing sheet 3. The non-transparent sheet 5 has a size substantially matching the shape of the upper surface of the container body 1 including the flange 2. Its size is almost the same as that of the closing sheet 3. The non-transparent sheet 5 covering the closing sheet 3 covers and covers the through holes 4 provided in the closing sheet 3. The material of the non-transparent sheet 5 is not particularly limited, but paper (including synthetic paper) is preferable because it is inexpensive and easy to print. The surface of the non-transparent sheet 5 can be provided with a product name or other printed display. The perforations 4 do not appear on the non-transparent sheet 5 on which the print indication is given.

A cover 6 made of a synthetic resin is placed over the non-transparent sheet 5. The lid 6 is detachable. The lid 6 has a base surface portion 6a, an outer peripheral edge portion 6b having substantially the same horizontal level as the base surface portion 6a, and a reinforcing rib portion 6c formed therebetween, and is connected downward to the outer peripheral edge portion 6b. A peripheral wall (hanging wall) 7 is provided. The lid 6 is locked to the flange portion 2 of the container body 1 at a peripheral wall portion 7 connected to the outer peripheral edge portion 6b. In the example shown in the drawing, the projection 7a on the inner surface side of the peripheral wall 7 hanging down from the outer peripheral edge 6b of the lid 6 is locked to the flange 2 (bent portion 2a) of the container body 1. I have.

By covering the lid 6, the non-transparent sheet 5 is held between the closing sheet 3 and the lid 6 at a predetermined position. The base surface portion 6a and / or the outer peripheral edge portion 6b of the lid 6 are in contact with the non-transparent sheet 5 placed on the closing sheet 3 or in a state where the non-transparent sheet 5 is lightly pressed. is there. As a result, the non-transparent sheet 5 does not move up and down, and unnecessary gaps between the closing sheet 3 and the non-transparent sheet 5 and between the non-transparent sheet 5 and the lid 6 are eliminated. Very little clearance can be obtained. Although its clearance is small, it allows gas to be released, but it is difficult for air to flow back. If the non-transparent sheet 5 is strongly pressed by the lid 6 so as to be completely sealed, the release of gas is hindered. The cover 6 is usually made of a transparent material, but may be made of a non-transparent material.

The lid 6 may be of a type that can be freely opened and closed at a hinge portion. For example, a ring-shaped frame part that can be fitted to the flange part 2 of the container body 1 and an upper lid part (upper surface part) fitted to the frame part are integrated by a hinge part. . Such a lid that can be opened and closed with the hinge as a fulcrum can be obtained by integrally molding a thermoplastic synthetic resin such as polypropylene or polyethylene. The frame may be configured to be fitted to the flange 2 of the container body 1. For example, a ridge formed partially on the inside of the peripheral side wall forming a part of the frame may be locked to the flange 2 of the container body 1. In this case, the non-transparent sheet 5 can be held at a predetermined position between the closing sheet 3 and the frame of the lid. . In order to prevent the lid 6 from falling off during the distribution process or the like, after the lid 6 is covered, the lid 6 may be securely fixed to the container body 1 using shrink wrapping or other means. Good.

As the contents 10 contained in the container body 1, various fermented foods that generate gas by fermenting during storage, such as miso without the addition of a fermentation inhibitor, such as stem wakame, may be used. it can.

[0017]

[Effect of the invention]

 According to the present invention, gas generated from the fermented food contained in the container passes through the through-hole provided in the central portion of the closing sheet, and flows between the closing sheet and the non-transparent sheet or between the non-transparent sheet and the lid. After being passed through the gap, the container is naturally released from the outer edge of the container by its own pressure from the outer edge of the flange portion of the container, which forms a gap between the container and the lid, thereby preventing expansion and deformation of the container. In addition, since the through-hole is provided in the central portion of the closing sheet and the non-transparent sheet is placed on the closing sheet, foreign matters and the like are hardly mixed or intruded from the outside, which is safe. Since a conventional one-way valve is not used, automatic packaging and the like can be easily and reliably performed at the time of manufacturing, and the manufacturing process is simple, so that costs can be reduced. Further, the through-hole provided in the central portion of the closing sheet is covered and covered by the non-transparent sheet, so that the appearance is excellent and the safety is excellent. According to the configuration in which the non-transparent sheet is formed to have a size substantially corresponding to the shape of the upper surface including the flange portion of the container body and is held at a predetermined position by being sandwiched between the closing sheet and the lid. The transparent sheet does not move up and down, and unnecessary gaps between the closing sheet and the non-transparent sheet and between the non-transparent sheet and the lid can be eliminated, and a small clearance appropriate for releasing gas can be obtained. Although its clearance is small, it allows gas to be released, but it is difficult for air to flow back. In addition, according to the configuration in which the non-transparent sheet is made of paper and the surface of the non-transparent sheet is printed with a product name or other printed information, it is easy to print and can be manufactured at low cost. Unlike printing on a closed sheet, it is divided into a closed sheet and a printed non-transparent sheet, making it easy to handle small lot production. No holes appear on the non-transparent sheet on which the printed indication is given. In particular, in the case of a packaging container for fermented food in which the content is miso, miso having a natural flavor to which a fermentation inhibitor has not been added can be filled and packaged without any trouble, which is extremely useful.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing one embodiment of the present invention.

FIG. 2 is a longitudinal sectional view showing a configuration example of a closing sheet 3.

FIG. 3 is a plan view showing an example of a closing sheet 3.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Container main body 2 Flange part 3 Closure sheet 4 Through-hole 5 Non-transparent sheet 6 Lid 6b Outer peripheral edge part 7 Peripheral wall part 10 Contents (fermented food)

Claims (5)

[Utility model registration claims] 1. A fermented food product in which a fermented food is accommodated inside a synthetic resin container body having an open top surface having a flange portion formed at an upper end outer peripheral edge, and the flange portion is sealed with a gas barrier blocking sheet. In the packaging container, a through-hole is provided in a central portion of the closing sheet, and a non-transparent sheet covering the closing sheet is placed on the closing sheet, and a synthetic resin lid is further placed thereon. A packaging container for fermented food, characterized by being covered. 2. The non-transparent sheet is formed in a size substantially corresponding to the shape of the upper surface including the flange portion of the container body, and is held at a predetermined position by being sandwiched between the closing sheet and the lid. The packaging container for fermented foods according to claim 1. 3. The packaging container for fermented food according to claim 2, wherein the lid is locked to a flange portion of the container main body at a peripheral wall portion connected to an outer peripheral edge portion of the lid body. 4. The packaging container for fermented food according to claim 3, wherein the non-transparent sheet is made of paper, and the surface of the non-transparent sheet is printed with a product name or other printed information. 5. The packaging container for fermented food according to claim 4, wherein the fermented food is miso.