JP2962914B2 - Natto container - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cup-shaped natto container.

[0002]

2. Description of the Related Art Conventionally, a natto container composed of a small paper cup has been widely used for putting and selling about one serving of natto. This paper cup is usually made of plastic processed paper.After putting natto in it and covering the film directly, a plastic film with an appropriate hole that is connected to the outside for fermentation is sealed at the upper opening. By doing so, natto is stored. The natto-containing container is put in a sales form in which two or three natto are collected and packed and shrink-wrapped with a shrink film while being placed on a backing paper.

[0003]

However, in the case of using a conventional natto container, after sealing the plastic film and closing the lid, two or three pieces are placed on a mount and shrink-wrapped. Therefore, there is a problem that it takes a long time for the packaging operation in order to form a sales form.
In addition, there is also a problem that the amount of garbage generated after eating the contents is large due to the large amount of packaging materials.

[0004] The present invention has been made in view of the above problems, and an object of the present invention is to provide a natto container that can be easily packaged and uses little packaging material.

[0005]

In order to achieve the above object, a natto container according to the present invention is formed in a processed paper coated with a thermoplastic resin on the inner surface and has a cup-like shape provided with an outwardly opening flange portion. A plurality of container bodies, and one piece of processed paper having an inner surface coated with a thermoplastic resin, and heat-sealed on the inner surface side with the opening flange portion of each container body in a state where each container body is connected. The cover material has a permeable portion in a cover region corresponding to the opening of each container body , and the cover material has a direction in which a plurality of container bodies are lined up.
It is characterized by having a bent portion on the side .

[0006] It is preferable that a perforation is formed in a connection region of the lid member, which is a portion connecting the container bodies.

[0007]

In the natto container of the present invention having the above-described structure, one lid serves as a lid for each container body and also serves to connect each container body. Then, in the case where perforations are formed in the connection region of the lid material, the food is broken at the perforations at the time of eating and separated into individual lidded containers.

[0008]

Next, an embodiment of the present invention will be described. FIG. 1 is a perspective view of a natto container as one embodiment of the present invention, and FIG. 2 is a schematic cross-sectional view showing a part of the AA cross section in FIG.

As shown in FIG. 1, a natto container 1 has a form in which three container bodies 2 containing natto therein are connected by a lid member 3. As shown in FIG. 2, the container body 2 is formed of a processed paper in which a polyethylene layer 2b is coated on an inner surface of a paperboard 2a, and has a cup shape provided with an outward opening flange portion 21. As shown in FIG. 2, the lid 3 is made of a similar processed paper in which a polyethylene layer 3b is coated on the inner surface of a paperboard 3a. As a result, the respective container bodies 2 are closed with lids 3 at the same time as the respective container bodies 2 are covered. Further, in the lid region 31 of the lid member 3 corresponding to the opening of each container body 2, a gas-permeable portion is formed by a plurality of slit-shaped pores 4 penetrating the processed paper. The hole 4 allows air to enter and exit from the outside.

The lid member 3 has bent portions 32 on both sides.
The bent portion 32 is bent as shown in FIG. 1 after the container main body 2 is attached to the lid member 3, and if necessary,
Flip lid 3 in Rukoto heat sealed to the outer surface of the container body 2 is adapted to serve reinforcement so as not deflect. Further, a perforation 5 for breaking is formed in a connection area 33 of the lid member 3 which is a part connecting the container bodies 2.

The above-mentioned natto container 1 is sold in the form shown in FIG. 1 and is made into individual containers with lids by breaking the lid material 3 at perforations 5 when eating. Since the separated individual containers with lids have a protrusion around the lid region 31, the container is opened by peeling the lid material 3 from the opening flange portion 21 of the container body 2 using this portion as a starting point. .

FIG. 3 shows another example of the air-permeable portion of the lid 3. In this embodiment, an opening 6 is provided in a part of the lid member 3, and the opening 6 is covered with a permeable film 7 such as a nonwoven fabric or a microporous film, so that a permeable portion is formed in the lid region 31 of the lid member 3. ing. Note that a plurality of pores 4 as described above may be provided instead of the openings 6, and a portion of the pores 4 may be covered with a gas permeable membrane 7. And in the natto container 1 provided with such a breathable portion, it is possible to prevent dust and foreign matter from entering the inside of the container body 2.

FIG. 4 shows still another example of the air-permeable portion of the lid 3. In this embodiment, a plurality of pores 8 are provided only in the polyethylene layer 3b of the processed paper constituting the lid member 3, so that a permeable portion is formed in the lid portion 31 of the lid member 3. This air-permeable portion is formed by a method in which a polyethylene film provided with pores 8 in advance is bonded to the paperboard 2a by a thermal lamination method. Alternatively, it is formed by extruding polyethylene onto the paperboard 2a or by laminating a polyethylene film by extrusion lamination, and then forming the pores 8 only in the polyethylene layer 2b by laser processing. And in the natto container 1 provided with such a breathable portion, it is possible to prevent dust and foreign matter from entering the inside of the container body 2 and to prevent excessive ventilation, and Is not over-decomposed.

It is needless to say that the number of the container bodies 2 connected by the lid member 3 is not limited to three, but may be two or four or more. If the number is large, it may be connected in two or more rows.

[0015]

As described above, the natto container of the present invention is constructed so as to cover each container body with one lid member and to simultaneously connect each container body, so that the packaging operation is simplified. In addition to the small amount of packaging material, the amount of garbage generated after use is reduced, which facilitates disposal and is excellent in terms of resource saving. And the lid material is the one where multiple container bodies are lined up
This has a bent part on the side of
And those connected in a state where they are reinforced by parts and do not bend
Become.

Further, by forming perforations in the connection region of the lid material, the lid material can be easily separated into individual lidded containers, and after the separation, the projecting portion of the lid material can be used as a starting point. Can be opened.

[Brief description of the drawings]

FIG. 1 is a perspective view of a natto container as one embodiment of the present invention.

FIG. 2 is a schematic sectional view showing a part of an AA section in FIG. 1;

FIG. 3 is a schematic sectional view for explaining another example of a gas-permeable portion.

FIG. 4 is a schematic sectional view for explaining still another example of a gas-permeable portion.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Natto container 2 Container main body 21 Opening flange part 3 Lid material 31 Lid area 33 Connection area 5 Perforation

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int. Cl. ⁶ , DB name) B65D 85/00-85/84 B65D 77/00-77/40

Claims (2)

(57) [Claims] 1. A plurality of cup-shaped container bodies formed of processed paper having an inner surface coated with a thermoplastic resin and having an outwardly opening flange portion, and an inner surface coated with a thermoplastic resin. A lid region of the lid material corresponding to the opening of each container main body, comprising an opening flange portion of each container main body and a lid material heat-sealed on the inner surface side in a state where each container main body is connected to each other and formed of a piece of processed paper. If the ventilation resistance portion is formed on bets
In addition, the lid is folded to the side in the direction where the
A natto container having a bent portion . Wherein natto container according to claim 1, wherein the perforations in the connecting region of the lid as a portion connecting each container body is formed.