JPH07291367A - Food package container for microwave oven cooking - Google Patents

Abstract

PURPOSE:To prevent such an inconvenience as the drop of cooked food by a method wherein in a food package container suitable for storing a food material of popcorn or the like, a case is provided with a developing part that can be three-dimensionally developed while holding an inner bag expanding as the food material is heated and expanded. CONSTITUTION:A food package container 1 consists of a case 2 and an inner bag 3 contained in the case 2. The inner bag 3 contains seasoned corn expanding under heat and increasing in apparent volume as a material for cooking popcorn 4. In nearly the center of the inner bag 3, an electromagnetic wave-sensitive heating layer is provided. On the other hand, the case 2 is made of hard paper or the like and is so constructed that a top surface area part 5 and a lower surface area part 6 respectively holding the upper and lower surfaces of the inner bag 3 are connected to bellows parts 7, 8 holding both side surfaces of the inner bag 3. A handle area part 10 sectioned by trough-folding lines is provided on the top area part 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a food packaging container for microwave oven cooking, which expands by heating through an electromagnetic wave and an electromagnetic wave sensitive heating agent layer which generates heat by the irradiation of this electromagnetic wave, thereby increasing the apparent volume. The present invention relates to a food packaging container for microwave cooking, which is suitable for housing food ingredients such as popcorn.

[0002]

2. Description of the Related Art A food packaging container for microwave oven cooking is directly loaded into an electromagnetic induction heating device (microwave oven device) so that the stored food material is subjected to heat treatment for cooking. It is a food packaging container, and a wide variety of products are provided centering on so-called frozen foods. Further, in these food packaging containers for microwave oven cooking, there are also provided food materials and an electromagnetic wave sensitive heating agent contained therein in order to heat the food materials evenly to improve heating efficiency.

By the way, popcorn is favored as an easy snack, and is provided not only for commercial use, but also as a household product in a popcorn container as disclosed in, for example, Jitsukaihei 1-85288 "Popcorn container". Has been done. That is, this popcorn container is a frying pan-shaped container body made of a metal material such as aluminum, and the inside of the popcorn container is subjected to a seasoning treatment with an appropriate seasoning and oil such as butter.
And a container body is covered with an expandable metal thin film to form an open-fire container. Therefore, when the popcorn container is directly heated by a stove or the like, the stored corn gradually explodes while pushing up the metal thin film, and the popcorn is easily cooked.

The above-mentioned popcorn products are extremely popular because they can be easily cooked at home. However, since this frying pan type popcorn container has to be cooked using an open flame, there is a problem that it is troublesome and difficult for children and the like to handle. Further, although this open-corner type popcorn product is a product that has been relatively well received, the cost of the container itself is high and the product as a whole is expensive.

Therefore, in such popcorn products, it is desired to provide a product in which popcorn can be cooked by simply loading a container into a microwave oven device and pressing a cooking switch, like a so-called frozen food. ing. However, since the frying pan-shaped popcorn container described above is made of metal such as aluminum, it cannot be loaded into a microwave oven to cook popcorn.

[0006]

By the way, as described above, popcorn is a food product in which the apparent volume is increased several times by expansion of the corn by heat treatment. Therefore, if a container configured to have a corn volume is directly loaded into a microwave oven device or the like and subjected to heat treatment, the container will be broken during cooking and popcorn will be placed in the microwave oven device. Will be scattered. Since this scattered popcorn is in a hot state, it is not only extremely dangerous to treat it, but also post-processing such as wiping off oil and popcorn residue adhering to the inside of the microwave oven is extremely troublesome. There is a point.

As a popcorn packaging container for solving such a problem, it is considered to form the popcorn packaging container in a size that allows for an apparent increase in volume after cooking. However, such a packaging container with a large wind will not only reduce the commercial value but also cause hygiene problems if it is crushed or torn. Therefore, it is necessary to take sufficient consideration and countermeasures during transportation. Becomes In addition, this packaging container requires a large storage space or sales floor area for popcorn, which is a relatively inexpensive product, so it is a product that is difficult to adopt from the current distribution system. .

[0008] Although popcorn is popular as a commercial food sold on the streets and the like mainly due to the circumstances caused by the containers and packages as described above, it is used as a household food such as potato chips. It is no exaggeration to say that the prevalence of is extremely low.

On the other hand, popcorn has a characteristic that the state after cooking greatly changes from the state of corn, so that it satisfies the required specifications that it is excellent in storage efficiency for commercial vending machines and is easy to handle even for commercial use. No suitable container or package is provided. Therefore, the sale of popcorn is exclusively after the salesperson cooks it.
Mainly so-called manned sales, which are packed in cups and sold, are generally considered to be relatively expensive products that are sold at special places such as amusement parks and resorts.

Therefore, the present invention is a packaging container for foods, such as popcorn, in which the apparent volume is increased by heat-treating the food material, which is troublesome to handle, and the characteristics thereof are skillfully utilized before cooking. It is possible to enjoy the change of form after cooking, and it is possible to load it in the microwave oven as it is for cooking, and by making the size before cooking almost equal to the volume of raw material food, storage efficiency is improved. Improved and easy to handle,
The present invention has been proposed for the purpose of providing a food packaging container for microwave oven cooking that can be sold by an automatic vending machine equipped with a microwave oven device.

[0011]

A food packaging container for microwave oven cooking according to the present invention, which has achieved this object, is provided with an electromagnetic wave sensitive heating agent layer, and is irradiated with an electromagnetic wave and an electromagnetic wave receiving member that generates heat by the irradiation of the electromagnetic wave. An inner bag body formed by joining a sheet body in which a food material that swells and the apparent volume increases by being heated through a heat-sensitive agent layer and is sealed in a bag shape, and hard paper or the like into a substantially thin box shape. The folding unit constitutes an unfolding unit by folding and an outer box body provided with an inner bag body loading unit for accommodating an inner bag body in which food materials and the like are enclosed.

Further, in the food packaging container for microwave oven according to the present invention, the outer box body is continuous with the inner bag body loading section for accommodating the inner bag body and the outer peripheral side surface section constituting the inner bag body loading section. It is formed into a substantially thin rectangular tube having a developed portion formed by integrally forming a bellows portion

Further, in the food packaging container for microwave oven according to the present invention, the outer box body is a thin box-shaped inner bag body loading section for accommodating the inner bag body in which the food material is sealed, and the inner bag body loading section. And a lid body portion that folds a plurality of lid body pieces that are continuous from the outer peripheral side surface portion that constitutes the portion to close the inner bag body loading portion that is configured as a deployment portion. Further, in the lid piece that constitutes the lid portion, the deployment guide slit and the deployment guide piece are formed corresponding to each other on the lid pieces adjacent to each other, and the deployment guide slit and the deployment guide piece are relatively engaged with each other. It is configured to be held in a folded state by doing.

Furthermore, in the food packaging container for microwave oven cooking according to the present invention, the outer box body is a thin box-shaped inner bag body loading section for accommodating the inner bag body in which the food material is sealed, and the inner bag body. And a lid part that closes the inner bag body loading part configured as a developing part by folding a plurality of lid part pieces that are continuous from the outer peripheral side surface part that constitutes the loading part, and the lid part has an adhesive force. It is configured to be held in a folded state by a weak seal body.

Further, in the food packaging container for microwave oven cooking according to the present invention, the inner bag body has a storage portion for storing the food material and the electromagnetic wave sensitive heating agent, and an expansion space portion continuous to the storage portion. It is configured by integrally forming the constituting bellows portion.

Further, in the food packaging container for microwave oven according to the present invention, when the inner bag body is inflated into a substantially long bag shape, the end portion is weakly bonded to the portion exposed from the outer box body. The unsealing portion is formed by joining with an agent, and the unsealing string is joined so that one end is exposed to the inner surface of the joining end portion forming the unsealing portion.

[0017]

According to the food packaging container for microwave oven cooking according to the present invention constructed as described above, when the food packaging container is loaded into the microwave oven and the cooking operation is performed, the electromagnetic waves and The encapsulated food material is heated and swelled through an electromagnetic wave sensitive heating agent that generates heat when irradiated with electromagnetic waves. The outer box body, which constitutes the packaging container for the food for microwave oven cooking together with the inner bag body in which the food material is sealed, has a three-dimensional expansion portion while holding the expanding inner bag body in accordance with the heated and expanded action of the food material. Deployment operation.

Therefore, since the food packaging container for microwave oven cooking has a size substantially equal to the volume of the food material sealed in the inner bag before cooking, it is easy to handle and requires a large storage space. There is no need to take it.
Further, according to the food packaging container for microwave oven cooking, a so-called dynamic display of a cooking state is performed by a change in the state of the outer box body that gradually expands as the food material is heated by the cooking operation.

In the outer box body, the bellows portion forming the expanding portion extends in accordance with the inner bag body which expands into a long bag shape when the sealed food material is heated and inflated, and the body portion of the inner bag body is expanded. The unfolding operation is performed as if it is wound in a belly. Therefore, according to the food packaging container for microwave oven cooking, by gripping the outer box body formed of hard paper or the like, the hands are not soiled by oil or the like, and it is not transferred to a plate or the like. Even immediately after being taken out from the microwave oven, it is possible to enjoy the food cooked as it is in the handheld state.

The inner bag body in which the food material is sealed is housed in the inner bag body loading section provided in the outer box body, and the inner bag body loading section constitutes a developing section before cooking. The mechanical strength or the hygienic condition is maintained by being closed by the lid portion configured by the body piece. The lid body piece is pushed from the inside by the inner bag body that expands when the sealed food material is heated and inflated, and the lid piece piece gradually expands.

Therefore, the outer box does not break during cooking, and the dynamic display function of the outer box is achieved by the operation of the lid piece. Furthermore, the lid piece moves in a stable state because the deployment guide piece moves along the deployment guide slit in accordance with the inner bag body that expands when the sealed food material is heated and inflated. .

The seal body that holds the lid piece in the folded state is peeled off by the inner bag body that expands when the sealed food material is heated and expanded. Therefore, the outer box body does not break during cooking, and the dynamic display function of the outer box body is also achieved by the operation of the lid piece.

When the sealed food material is heated and inflated in the inner bag, the bellows portion expands and expands into a substantially long bag shape. Further, the inner bag body that has expanded into the substantially long bag shape is opened via the opening cord of the opening portion provided in the portion exposed from the outer box body. Therefore, this food packaging container for microwave oven cooking can be opened without risk even if it is immediately taken out of the microwave oven after cooking, and the cooked food accidentally spills from the inner bag. The occurrence of such inconvenience is prevented.

According to the food packaging container for microwave oven cooking constituted by the outer box body and the inner bag body, the size before cooking is almost equal to the volume of the food material, and the inner bag body in which the food material is sealed. Is relatively tough and hygienic because it is covered by the outer box made of hard paper. In addition, in this food packaging container for microwave oven cooking, the outer box body gradually expands three-dimensionally during cooking, so that the movement changes. Due to these characteristics, the food packaging container for microwave cooking according to the present invention is extremely suitable for use in a food vending machine equipped with a microwave device.

[0025]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Specific embodiments of the present invention will be described below in detail with reference to the drawings. As a first embodiment of the present invention, FIG.
The food packaging container 1 for microwave oven cooking shown in FIG.
The food is composed of an outer box body 2 and an inner bag body 3 housed in the outer box body 2. The inner bag body 3 is a food product that swells by heat treatment from the state of the material to increase the apparent volume. Seasoned corn 1 which is the raw material for cooking popcorn 4
4 is used as a sealed popcorn container.

The outer box body 2 is made of hard paper or the like,
As shown in FIG. 6, it has a horizontally long rectangle in the unfolded state. That is, the outer box body 2 includes an upper surface region 5 and a lower surface region 6 that hold upper and lower surfaces of an inner bag body 3 described later, and first bellows portions 7 and a second bellows portion 7 that hold both side surfaces of the inner bag body 3. And the bellows part 8 are integrally connected. A glue margin portion 9 is continuously provided on the upper surface region portion 5 at one end portion in the longitudinal direction via a mountain fold line 5a. In addition, in the upper surface region portion 5, the other end portion in the longitudinal direction is provided with a first fold line 5b.
The bellows part 7 is integrally connected. First bellows 7
Are connected to the lower surface region 6 via the mountain fold line 6a. Further, the lower surface region portion 6 is connected to the second bellows portion 8 via the mountain fold line 6b.

In the following description, the operation of bending from the unfolded state to the convex side in the drawing is called a mountain fold, and the operation of bending to the concave side in the drawing is called a valley fold. Further, in the development view of each outer box body, the mountain fold line is shown by a one-dot chain line, and the valley fold line is shown by a dotted line. In addition, in the outer box body 2 that constitutes the popcorn container 1 of the first embodiment, each mountain fold line and valley fold line that are formed are formed as straight lines in the width direction that are parallel to each other in the unfolded state.

In the upper surface area 5 divided by the mountain fold lines 5a and 5b, there is formed a handle area 10 which will be described later and is located in the central region in the longitudinal direction and divided by the valley fold lines 10a and 10b. The width dimension in the longitudinal direction is set to be slightly larger than the width dimension of the inner bag body 3 by the width dimension of the grip region portion 10. A valley fold line 5c is provided at the central position of the grip region portion 10, in other words, at the central position of the upper surface region portion 5. Arc-shaped cut lines 10c and 10d facing each other are provided in the left and right regions of the handle region 10 with the central valley fold line 5c interposed therebetween. The base ends of the cut lines 10c and 10d are connected by valley fold lines 10e and 10f, respectively.

The lower surface area 6 divided by the mountain fold lines 6a and 6b is slightly larger than the width of the inner bag 3, specifically, the width of the inner bag 3 and the thickness of both side surfaces. Has a width dimension substantially equal to the sum of The lower surface region 6 is provided with mountain fold lines 6c and 6d at positions inside the mountain fold lines 6a and 6b and at intervals substantially equal to the thickness dimension of the inner bag body 3. Therefore,
Areas 6A and 6B of the lower surface area 6 divided by the mountain fold lines 6c and 6d are formed such that the longitudinal dimension thereof is substantially equal to the width dimension of the inner bag body 3.

The width dimension of the first bellows portion 7 in the longitudinal direction is made sufficiently larger than the thickness dimension of the inner bag body 3, and the mountain fold line 5 is formed.
It is divided between the upper surface region portion 5 and the lower surface region portion 6 via a and the mountain fold line 6a. A mountain fold line 7a is provided at a central position of the first bellows portion 7, and an area with the mountain fold line 5a on the upper surface area portion 5 side sandwiching the central mountain fold line 7a and a lower surface area portion. A valley fold line 7b and a valley fold line 7c are provided at the respective central positions of the regions of the mountain fold line 6a on the 6 side.

The second bellows portion 8 has the same shape as that of the above-mentioned first bellows portion 7, and is integrally connected to the lower surface region portion 6 via the mountain fold line 6b. That is, the width dimension of the second bellows portion 8 in the longitudinal direction is made sufficiently larger than the thickness dimension of the inner bag body 3, and the mountain fold line 8a is provided at the center position. In addition, the second bellows portion 8 has a valley fold line 7b and a valley fold line at the center positions of the region with the mountain fold line 6b on the lower surface region 6 side sandwiching the central mountain fold line 8a and the region with the side edge portion side. Lines 7c are provided respectively.

The outer box body 2 having the above-mentioned developed shape is bent along the above-mentioned mountain fold lines and valley fold lines, respectively, and then the glue margin portions 9 on both ends are formed on the side edges of the second bellows portion 8. By joining to the inner surface of the part, as shown in FIG. 7, the entire assembly is assembled into a substantially rectangular tube shape. In the assembled state, the outer box body 2 has a rising side surface portion formed by the regions 6A and 6B on the upper portion of the lower surface region portion 6, and further via the folded first bellows portion 7 and second bellows portion 8. The upper surface region 5 is located opposite to the lower region 6, and constitutes the inner bag loading portion 11 of the inner bag 2 inside.

The grip region 10 provided in the central region of the upper surface region 5 is bent along the central mountain fold line 5c so that the left and right regions overlap with each other. Then, in the grip region portion 10, the arcuate portions formed by the cut lines 10c and 10d are folded along the valley fold lines 10e and 10f, respectively, in a state where the left and right regions are overlapped with each other. By folding the arc portion in this manner, the handle region 12 is provided with a handle hole 12 which is an arc-shaped cutout portion.
Is configured. Further, the grip area portion 10 is bent along the upper surface area portion 5.

For the inner bag 3, for example, a film material having excellent heat resistance obtained by coating a polypropylene film with vinylidene chloride is used. In the unfolded state, the inner bag body 3 is located at a substantially central portion, and the electromagnetic wave sensitive heating agent layer 1
3 is formed. The electromagnetic wave sensitive heating agent layer 13 is the inner bag body 3
It is formed directly on the inner surface by a method such as printing, or is formed by a method in which a member hardened in the shape of a thin plate is housed, and is composed of, for example, conductive carbon particles and metal particles such as aluminum and nickel.

The inner bag 3 has a predetermined amount of corn 1 seasoned with an oil such as a suitable seasoning and butter so as to be superposed on the electromagnetic wave sensitive heating agent layer 13 described above.
4 is supplied. The inner bag body 3 is a long bag-shaped container in which the electromagnetic wave sensitive heating agent layer 13 and the cone 14 are sealed by heat bonding or the like after the outer peripheral ends in the longitudinal direction and the width direction are overlapped. Configured as. Further, the inner bag body 3 has side portions 15A, as shown in FIG.
15B is formed by superimposing it on the central portion where the electromagnetic wave sensitive heating agent layer 13 and the cone 14 are disposed. In this state, the inner bag body 3 has a thickness dimension substantially equal to the rising side surface portion of the outer box body 2 assembled in a substantially rectangular tube shape.

The inner bag body 3 constructed as above is shown in FIG.
As indicated by the arrow, the popcorn container 1 is completed by being inserted into the inner bag body loading portion 11 formed inside the outer box body 2 from the opened side surface portion and combined with the outer box body 2. In this case, the inner bag body 3 is, as shown in FIG.
The outer box body 2 is assembled from the side portion 15A side folded into the central portion. Therefore, the electromagnetic wave sensitive heating agent layer 13 provided on the inner surface of the inner bag body 3 is positioned inside the lower surface area portion 6 of the outer box body 2.

As shown in FIG. 1, a seal body 16 is attached to at least one side of the outer box body 2 and the inner bag body 3 combined in this manner.
Prevents the inner bag body 3 from falling off the outer box body 2.
Further, the sealing body 16 has a relatively weak adhesive force,
When the inner bag body 3 expands during the cooking operation described later, the inner bag body 3 is relatively easily peeled off to allow the unfolding operation of the outer box body 2.

Since the embodiment popcorn container 1 having the above-described structure is formed into a flat and substantially thin box shape as a whole, the popcorn container 1 can be housed in an individual packaging box or the like in a stacked state, and can be transported or the like. Is extremely easy to handle. Further, even when the popcorn container 1 is taken out from an individual packaging box and stored and stored in a sales floor, a stocker of a vending machine, or the like, it can be stored in a stacked state or a standing state. The space efficiency can be improved.

The popcorn container 1 is cooked by directly loading the popcorn container 1 into the microwave oven with the handle portion 10 of the outer box body 2 facing upward. When the cooking switch of the microwave oven is operated, the loaded popcorn container 1
Is irradiated with electromagnetic waves. The cone 14 sealed in the inner bag body 3 is heated by the irradiated electromagnetic wave, and the electromagnetic wave sensitive heating agent layer 13 provided on the bottom surface side generates heat by the irradiation of the electromagnetic wave and is also heated from the bottom surface side. As a result, efficient cooking is performed.

The heated corn 14 explodes and expands inside the inner bag 3 to gradually become the popcorn 4, and the seasoning or oil adheres to the popcorn 4. The inner bag 3 is
Since the apparent volume increases as the cone 14 expands, it gradually expands. In this case, the inner bag 3
As shown in FIG. 2, the lateral portions 15A and 15B folded so as to be superposed on the central portion spread to the left and right and greatly expand as a whole to form a long bag shape. Then, the inner bag body 3 pushes the outer box body 2 from the inner side as the corns 14 explode and expand inside one after another to form the popcorn 4.

Since the outer box body 2 receives the internal pressure from the expanding inner bag body 3, the first bellows portion 7 and the second bellows portion 8 are held while holding the outer peripheral portion of the inner bag body 3. It gradually expands and expands in three dimensions. In the popcorn container 1, when the raw material corn 14 sufficiently explodes and expands inside the inner bag body 3, as shown in FIG. 3, the body portion of the inner bag body 3 in which the outer box body 2 has largely expanded is bellows-shaped. The inner bag body 3 is held by being wrapped around.

When the popcorn container 1 has been cooked for a predetermined time, as shown in FIG. 3, the handle portion 10 is raised from the upper surface area portion 5 of the outer box body 2 and the finger is put in the handle hole 12. Taken out of the microwave oven. The popcorn container 1 is composed of an outer box body 2 and an inner bag body 3 which are separate members, and is provided in an upper surface area portion 5 opposite to the electromagnetic wave sensitive heating agent layer 13 where the handle portion 10 generates heat. Therefore, even if the popcorn container 1 is taken out of the microwave oven immediately after the cooking is finished, there is no inconvenience that the popcorn container 1 is hot and cannot be held by hand.

Further, in the popcorn container 1, the outer box body 2 holds the central portion of the long bag-shaped inner bag body 3 and the handle portion 10 is integrally formed on the outer box body 2, so that it is extremely long in the vertical direction. It constitutes a natural container and is gripped. Then, as shown in FIG. 4, the popcorn container 1 is peeled from the inside of the inner bag body 3 by peeling off the joined portion on one side in the longitudinal direction by strongly pulling the peeled portion and the like to be enjoyed. It

Popcorn container 1 of the first embodiment described above
Shows a container in which the outer box body 2 winds and holds the central portion of the long bag-shaped inner bag body 3 in a belly shape, but the present invention can be variously developed as the following containers. A popcorn container 2 shown in FIGS. 9 to 16 as a second embodiment of the present invention.
0 is also composed of an outer box body 21 and an inner bag body 22 housed in the outer box body 21, and the inner bag body 22 is sealed with an electromagnetic wave sensitive heating agent layer and a seasoned corn, although not shown. Has been done.

The outer box body 21 is made of hard paper or the like, and as shown in FIG. 12, the first side face portion 25 to the fourth side face portion 28 are formed on four sides of the square bottom face portion 24 as a center.
Are formed in a wide cross shape. The bottom portion 24 is provided with mountain fold lines 24a to 24d along the outer periphery thereof, and a strip that constitutes the loading unit 23 that accommodates the inner bag body 22 in the assembled state described later via these mountain fold lines 24a to 24d. The first side surface portion 25 to the fourth side surface portion 28 in the shape of a circle are integrally connected.

Of course, all of the first side surface portion 25 to the fourth side surface portion 28 have the same width dimension and the bottom surface portion 24.
The first corner piece 29 to the fourth corner piece 32 are respectively provided on the side portions in the longitudinal direction so as to form a square shape that is larger than the width dimension. The first corner piece 29 to the fourth corner piece 32 are separated by the cuts 29a to 32a so that one corner piece is connected to each of the first side surface portion 25 to the fourth side surface portion 28. ing.

Further, the first side surface portion 25 to the fourth side surface portion 28
Through the mountain fold lines 25a to 28a, respectively.
The lid piece 33 to the fourth lid piece 36 are integrally connected. The first lid piece 33 to the fourth lid piece 36 have the same shape, and their outer dimensions are the same as the bottom surface portion 24. In addition, the first lid piece 33 to the fourth lid piece 3
6, each of the tips has a corrugated shape. The first lid piece 33 and the third lid piece 35, which are consecutively arranged in a symmetrical position with the bottom portion 24 sandwiched, divide the bottom portion 24, the first side surface portion 25, and the third side surface portion 27 into mountains. Folding line 24a,
The deployment guide slits 37 and 38 are provided by arcuate cuts that reach the vicinity of the tip end with 24c as the start end.

The first lid piece 33 and the second lid piece 34, which are adjacent to the bottom surface 24, have arcuate grip pieces at the opposite side ends with valley fold lines 33a, 34a. 39, 4
0 are integrally projected.

The outer box body 21 having the above-mentioned developed shape is
By bending the first side surface portion 25 to the fourth side surface portion 28 with respect to the bottom surface portion 24 through the mountain fold lines 24a to 24d, a thin box-shaped inner bag for accommodating the inner bag body 22 as described later. The body loading unit 23 is configured. On this occasion,
The 1st corner piece 29 thru / or the 4th corner piece 32 connected to the 1st side surface part 25 thru / or the 4th side surface part 28 one by one, respectively,
By being folded inward, the inner bag loading portion 23
Reinforce the corners of.

Thereafter, the first lid piece 33 to the fourth lid piece 36 are bent with respect to the first side surface portion 25 to the fourth side surface portion 28 through the mountain fold lines 25a to 28a. The folded first lid body piece 33 to fourth lid body piece 36 are folded as will be described later to form a lid body portion of the inner bag body loading unit 23. The first lid piece 33 to the fourth lid piece 36 are folded in the following order to form the thin box-shaped outer box body 21 as shown in FIG. 9.

The first lid piece 33 is first bent with respect to the first side surface portion 25 via the mountain fold line 25a, and then the fourth lid piece 36 is provided on the upper portion of the first lid piece 33. Mountain fold line 2
It is bent from the fourth side surface portion 28 via 8a. Then, in the fourth lid piece 36, the deployment guide piece 36A at the tip portion configured to be formed in a corrugated shape is inserted into the deployment guide slit 37 provided in the first lid piece 33. In addition,
The handle piece 39 formed on the first lid piece 33 is a valley fold line 3
It is bent to the upper surface side of the first lid piece 33 via 3a.

The third lid piece 35 includes the above-mentioned first and fourth lid pieces.
Following the lid pieces 33 and 36, the lid pieces 33 and 36 are bent with respect to the third side surface portion 27 through the mountain fold line 27a. Next, the second lid piece 34 is bent from the second side surface portion 26 on the upper portion of the third lid piece 35 through the mountain fold line 26a. Then, in the second lid piece 34, the deployment guide piece 34 </ b> A at the tip portion configured to be formed in a corrugated shape is inserted into the deployment guide slit 38 provided in the third lid piece 35. The handle piece 40 formed on the second lid piece 34 is bent to the upper surface side of the second lid piece 34 through the valley fold line 34a.

The inner bag body 22 housed in the inner bag body loading portion 23 of the outer box body 21 assembled in the thin box shape as described above is also excellent in heat resistance, for example, a polypropylene film coated with vinylideline chloride. A film material or the like is used. The inner bag body 22 is formed into a rectangular bag shape in which a natural shape is folded, and the ceiling surface portion and the bottom surface portion are alternately stacked with triangularly folded portions from both sides. The outer dimensions of the ceiling surface portion and the bottom portion of the inner bag body 22 are slightly smaller than the outer dimensions of the bottom portion 24 of the outer box body 21 described above. The ceiling part is
As will be described later, the opening portion of the inner bag body 22 is configured.

Although not shown, an electromagnetic wave sensitive heating agent layer composed of conductive carbon particles and metal particles such as aluminum and nickel is formed on the bottom surface of the inner bag 22. Then, the inner bag 22 is accommodated with a predetermined amount of cones 46 seasoned with an oil such as an appropriate seasoning and butter so as to be superposed on the electromagnetic wave-sensitive heating agent layer, so that the inner bag body 22 is provided on the bottom surface side. Cone compartment 44
Are configured.

Further, the inner bag body 22 is integrally formed with a multi-stage bellows portion 45 continuously from the cone housing portion 44 on the bottom surface side toward the ceiling surface side. The bellows portion 45 is normally in a folded state. Therefore, the inner bag body 22 is shown in FIG.
As shown in FIG. 3, it has a thin box-like appearance as a whole. Of course, the inner bag 22 has a thickness that is equal to that of the outer box 2
It is configured to be slightly smaller than the height of the inner bag body loading portion 23 of No. 1.

On the other hand, the inner bag 22 is provided with an adhesive layer on the joint end surfaces including the triangular folded portions forming the ceiling surface portion and the bottom surface portion, and these joint end surfaces are superposed on each other and then heated to be joined. It is joined by heat joining. In this case, an adhesive having a relatively weak adhesive force is used for the joining end surfaces 41, 42 of the ceiling surface portion,
The heat bonding process is performed with the opening string 43 interposed. As shown in FIG. 14, the opening string 43 has one end exposed from the inner bag body 22 and joined thereto. This opening string 43 is
The inner bag body 22 is unsealed from the unsealing portion formed on the ceiling surface portion by being pulled during the unsealing operation described later.

The inner bag body 22 having the above-described structure is mounted on the outer bag body 21 in a state in which the first lid piece 33 to the fourth lid piece 36 are not folded, from the bottom side thereof. It is stored in 23. Then, the outer box body 21 is in a state where the inner bag body 22 is housed, and the first lid piece 3 is formed by the procedure described above.
By folding the third to fourth lid pieces 36, the inner bag loading section 23 is closed to complete the popcorn container 20.

Since this popcorn container 20 is also constructed as a flat, substantially thin box as a whole, it can be stored in an individual packaging box or the like in a stacked state, and handling during transportation is extremely simple. Further, even when the popcorn container 20 is taken out from the individual packaging box or the like and is stored and stored in the sales floor, the stocker of the vending machine, or the like, it can be stored in a stacked state or a leaning state. The space efficiency can be improved.

The popcorn container 20 of the second embodiment constructed as described above is directly loaded into the microwave oven for cooking. When the cooking switch of the microwave oven is operated, the loaded popcorn container 20
Is irradiated with electromagnetic waves. The cone 46 sealed in the inner bag body 22 is heated by the irradiated electromagnetic wave, and the electromagnetic wave sensitive heating agent layer provided on the bottom surface side is heated by the irradiation of the electromagnetic wave and is also heated from the bottom surface side. As a result, efficient cooking is performed.

The heated corn 46 explodes and expands inside the inner bag body 22 to become popcorn 47, and seasoning or oil adheres to the popcorn 47. Inner bag 22
Expands gradually because the apparent volume increases as the cone 46 expands. In this case, the inner bag body 22 is, as shown in FIG.
7, the bellows portion 45 gradually expands from the cone storage portion 44 and largely expands upward as a whole.

Since the outer box body 20 receives the internal pressure due to the expansion operation of the inner bag body 22, it is constructed by folding the first lid piece 33 to the fourth lid piece 36 for closing the inner bag loading portion 23. The lid portion gradually expands. In this case, the first
The lid piece 33 and the fourth lid piece 36 are the deployment guide slit 3
As the deployment guide piece 36A inserted along 7 moves, it deploys almost simultaneously. Also, the third
The lid piece 35 and the second lid piece 34 are the expansion guide slits 3
As the deployment guide piece 36A inserted along 7 moves, it deploys almost simultaneously. Therefore, the first lid piece 33 to the fourth lid piece 36 perform the expanding operation in an extremely stable state as if the petals open.

As described above, the first lid piece 33 to the fourth lid piece 33
As shown in FIG. 11, the inner bag body 22 for unfolding the lid piece 36 is largely swelled and exposed from the outer box body 21 in a state where the outer peripheral portion is held by the outer box body 21. And
When the popcorn container 20 has been cooked for a predetermined time, as shown in the figure, the handle piece 3 caused by the first lid piece 33 and the second lid piece 34 of the outer box body 21.
Grasping 9, 40 is taken out from the microwave oven.

The popcorn container 20 is composed of an outer box body 21 and an inner bag body 22 which are separate members, and the lid body on the side opposite to the electromagnetic wave sensitive heating agent layer where the handle pieces 39 and 40 generate heat. Since it is provided in the section, even if it is taken out from the microwave oven immediately after the cooking is finished, there is no inconvenience that it cannot be held by hand because it is hot. And
In the popcorn container 20, the joint portion on the ceiling side is peeled off by strongly pulling the opening string 43 while holding the grip pieces 39 and 40. Thereafter, the cooked popcorn 14 is taken out from the opened ceiling side and enjoyed.

The outer box body for accommodating the inner bag body 22 which expands in the vertical direction is not limited to the popcorn container 20 of the second embodiment, but the third embodiment shown in FIGS. 17 to 20. Example Inner bag 22 constituting the popcorn container 50
Is stored in the outer box body 51.

That is, the outer box body 51 constituting the popcorn container 50 of the third embodiment is also formed of hard paper or the like, and as shown in FIG. The first side surface portion 54 to the fourth side surface portion 57 are integrally connected to each other. The bottom portion 52 is provided with mountain fold lines 52a to 52d along the outer periphery thereof, and is configured by a loading portion 53 which is divided by the mountain fold lines 52a to 52d and accommodates the inner bag body 22 in an assembled state described later. The strip-shaped first side surface portion 54 to the fourth side surface portion 57 are integrally connected.

These first side surface portion 54 to fourth side surface portion 57
Have the same width, and the bottom surface 5
It is formed so as to be integrally projected laterally with a length of about 2/3 of each side of the bottom surface portion 52 in a state of being bent slightly in a V shape from one end portion of 2. In addition, the first side surface portion 54
The fourth side surface portion 57 is configured such that one end portion thereof is divided by notches 54a to 57a provided so as to extend from the mountain fold lines 52a to 52d, respectively.

The first side surface portion 54 to the fourth side surface portion 57 include
The first lid piece 58 to the fourth lid piece 61 are integrally connected to each other via the mountain fold lines 54b to 57b. All of the first lid piece 58 to the fourth lid piece 61 have the same shape, and are substantially in a developed state around the intersections of the mountain fold lines 52a to 52d of the bottom portion 52 and the mountain fold lines 54b to 57b. It has a fan shape.

The first lid piece 58 to the fourth lid piece 61 have bottom surface portions 5 formed by mountain fold lines 58a to 61a passing through the center points.
It is divided into first regions 58A to 61A integrally formed in the outer peripheral region of each side of No. 2 and second regions 58B to 61B protruding sideways from each side of the bottom surface portion 52. Therefore, the outer box body 51 is configured such that its developed shape has a substantially screw-shaped appearance in which the four lid pieces 58 to 61 project substantially spirally around the bottom surface portion 52 in the outer peripheral portion. ing.

The first lid piece 58 through the fourth lid piece 61
Is a valley fold line 58 passing through the center point on the first regions 58A to 61A side so as to divide the region into two substantially equal parts.
b to 61b are provided. Further, the first lid piece 58 is provided with a valley fold line 58c so as to divide the central portion of the fan-shaped tip into an arc shape. As will be described later, the valley fold line 58c forms a handle piece 62 on a part of the first lid piece 58 when the embodiment popcorn container 50 is taken out from the microwave oven.

The outer box body 51 having the above-mentioned developed shape is
The first side surface portion 54 to the fourth side surface portion 57 are bent with respect to the bottom surface portion 52 through the mountain fold lines 52a to 52d,
A thin box-shaped inner bag body loading portion 53 for housing the inner bag body 22.
Is configured. At this time, the protruding portions of the first side surface portion 25 to the fourth side surface portion 28 from the bottom surface portion 52 are overlapped with the adjacent side surface portions by the bending operation of the first lid body piece 58 to the fourth lid body piece 61 described later. This constitutes the side surface of the double wall. Therefore, in the outer box body 51, the outer peripheral portion of the inner bag body loading portion 53 is reinforced by the protruding portions.

After that, the first lid piece 58 to the fourth lid piece 61 are bent with respect to the first side surface portion 54 to the fourth side surface portion 57 through the mountain fold lines 54b to 57b. The folded first lid piece 58 to fourth lid piece 61 are folded as will be described later to form a lid portion of the inner bag body loading portion 53. The first lid piece 58 to the fourth lid piece 61 are thin box-shaped as shown in FIG. 17 when the inner bag body 22 is stored in the inner bag body loading portion 53 and then folded in the following order. The popcorn container 50 of FIG.

The first lid piece 58 to the fourth lid piece 61 are bent in the following order. In this case, the first lid piece 5
As described above, the eighth to fourth lid pieces 61 have the mountain fold line 5
The first area 58A to 61A and the second area 58B to 61B are divided from the center through 8a to 61a. Therefore, the first lid piece 58 to the fourth lid piece 61 are bent with respect to the first side surface portion 54 to the fourth side surface portion 57 via the mountain fold lines 54b to 57b, respectively. 2 across 52 corners
It constitutes a part of the lid body corresponding to the surface.

The first lid piece 58 first has a mountain fold line 54b.
Is bent to the first side face portion 54 through the second side piece 54, and then the second lid piece 59 is changed to the second region 58 of the first lid piece 58.
The first region 59A is superposed on the upper part of B and is bent from the second side face portion 55 through the mountain fold line 55b. Then, the third lid piece 60 is arranged such that the first area 60A is superposed on the second area 59B of the bent second lid piece 59 and the third lid piece 60 is formed through the mountain fold line 56b. It is bent from the side surface portion 56. Further, the fourth lid piece 61 is the second lid piece 60 of the bent third lid piece 60.
The first region 61A is folded over the upper part of the region 60B from the fourth side face portion 57 through the mountain fold line 57b.

Then, the fourth region 61A that has been finally folded is inserted into the second region 61A inside the second region 58B of the first region 58 that has been first folded. Be done. As a result, the outer box body 51 becomes the inner bag body 2
A thin box-shaped popcorn container 50 in which the inner bag loading portion 53 accommodating 2 is closed is configured.

Since this popcorn container 50 is also formed into a flat, generally thin box shape whose shape before cooking is defined by the shape of the outer box body 51, the popcorn container 50 is stored in an individual packaging box or the like in a stacked state. It is very easy to handle for transportation. Further, the popcorn container 50 does not require a joining seal or the like for fixing the first lid piece 58 to the fourth lid piece 61 that closes the inner bag loading portion 53. When the popcorn container 50 is taken out from an individual packaging box or the like and stored and stored in a sales floor, a stocker of a vending machine, or the like, a stacked state or a leaning state,
Since it can be stored in any state, space efficiency can be improved.

The popcorn container 50 of the third embodiment configured as described above is directly loaded into the microwave oven for cooking. When the cooking switch of the microwave oven is operated, the loaded popcorn container 50
Is irradiated with electromagnetic waves. The cone 46 sealed in the inner bag body 22 is heated by the applied electromagnetic waves and explodes and expands inside the inner bag body 22 to become a popcorn 47.
Seasoning or oil adheres to the popcorn 47. The cooking of the cone 46 is efficiently performed by the electromagnetic wave-sensitive heating agent layer provided on the bottom surface side generating heat due to the irradiation of the electromagnetic waves and also being heated from the bottom surface side.

Since the outer box body 51 receives the internal pressure due to the expansion operation of the inner bag body 22, as shown in FIG. 18, the first lid piece 58 to the fourth lid body that closes the inner bag body loading portion 23. The lid portion formed by folding the piece 61 gradually expands. In this case, the first lid piece 58 to the fourth lid piece 61 are
The second region 61 of the fourth lid piece 61 that is finally bent
Since B is inserted inside the second region 58B of the first lid piece 58 that is first bent, the unfolding operation is performed almost at the same time.

As described above, the first lid piece 58 through the fourth lid piece 58
As shown in FIG. 19, the inner bag body 22 in which the lid piece 61 is unfolded largely swells and is exposed from the outer box body 51 in a state in which the outer peripheral part is held by the outer box body 51. And
When the popcorn container 50 has been heated and cooked for a predetermined time, as shown in the figure, a grip portion 62 formed by dividing it by a valley fold line 58c is formed at the tip of the first lid piece 58 of the outer box body 51. Grab it and take it out of the microwave oven.

As described above, the popcorn container 50 of the third embodiment is also a separate member such as the outer box body 51 and the inner bag body 22.
In addition, since the handle portion 62 is provided on the lid portion opposite to the electromagnetic wave sensitive heating agent layer that generates heat, the handle portion 62 is taken out of the microwave oven immediately after the cooking is completed. However, there is no inconvenience that it is too hot to hold. And popcorn container 50
With the grip portion 62 being gripped, the open string 43 is strongly pulled to peel off the joint portion of the inner bag body 22 on the ceiling side, and the cooked popcorn 14 is taken out and enjoyed.

The popcorn container 70 shown in FIGS. 21 to 24, like the popcorn container 50 of the second and third embodiments described above, has an inner bag body 22 that expands in the vertical direction inside an outer box body 71. It is a popcorn container shown as a 4th example stored in inner bag body loading part 73. The outer box body 71 constituting the popcorn container 70 of the fourth embodiment is also formed of hard paper or the like, and has a developed shape of an approximately octagon, as shown in FIG.

That is, the outer box body 71 has a mountain fold line 72a.
Centering on the bottom surface portion 72 divided into squares by to 72d, and the first side surface portion 74 to the fourth side surface portion 77 on the outside of the mountain fold lines 72a to 72d forming the four sides thereof,
The first lid portion 78 to the fourth lid portion 81 and the first corner portion 8
The second to fourth corner portions 85 are formed separately. The first side surface portion 74 to the fourth side surface portion 77 and the first lid body portion 78 to the fourth lid body portion 81 are configured as a horizontally long rectangular area having one side of the bottom surface portion 72 as one side in the longitudinal direction. There is. Further, the first corner portion 82 to the fourth corner portion 8
Reference numeral 5 is configured as an area of a substantially right triangle connecting the adjacent tip portions of the first lid body portion 78 to the fourth lid body portion 81.

The first side surface portions 74 to 4 having the same width
The side surface portion 77 has a first folding line 74a through a first folding line 74a.
The lid body portion 78 to the fourth lid body portion 81 are integrally connected to each other. The mountain fold lines 74a to 77a are extended to the first corner portion 82 to the fourth corner portion 85, respectively, so as to form a large square on the outer peripheral portion of the bottom surface portion 72.

The first lid portion 78 has two parallel mountain fold lines 72b and 72d which divide the bottom surface portion 72 and a first side surface portion 74 which is orthogonal to the mountain fold lines 72b and 72d.
There are two valley fold lines 78a and 78b connecting the center of the outer peripheral portion from two points where the mountain fold lines 74a that divide the area intersect. Similarly, the third lid portion 80 has two parallel mountain fold lines 72b and 72d that divide the bottom portion 72.
And two valley fold lines 80a and 80b connecting the center of the outer peripheral portion from two points where the mountain fold lines 76a that divide the third side surface portion 76 orthogonal to the mountain fold lines 72b and 72d intersect. .

In the first corner portion 82 to the fourth corner portion 85, the mountain fold lines 82a to 85 formed as a perpendicular line connecting the apex which is the corner of the bottom surface portion 72 to the center of the bottom side which is the outer peripheral portion.
a and mountain fold lines 74a to 77a that divide each side surface
And valley fold lines 82b to 85b and 82c to 85c, which are respectively constituted by two perpendicular lines parallel to the mountain fold lines 82a to 85a that connect the bottom sides from the intersections of the mountain fold lines 72a to 72d that divide the bottom surface portion 72, It is provided.

The outer box body 71 having the above-mentioned developed shape is
The first side surface portion 74 to the fourth side surface portion 77 are bent with respect to the bottom surface portion 72 through the mountain fold lines 72a to 72d,
A thin box-shaped inner bag body loading section 73 for housing the inner bag body 22.
Is configured. At this time, the first corner portion 82 to the fourth corner portion 85 are formed into a triangular shape by bending the mountain fold lines 82a to 85a, and the valley fold line 82b.
To 85b and 82c to 85c.

Thereafter, the first lid piece 78 and the third lid piece 80 are bent with respect to the first side surface portion 74 and the third side surface portion 76 via the mountain fold lines 74a, 80a. At this time, the first cover piece 78 and the third cover piece 80 are
It is bent in a triangular shape along a, 78b and valley fold lines 80a, 80b. This folded first lid piece 7
8, the second lid piece 79 and the fourth lid piece 81 are arranged so as to cover the upper portion of the third lid piece 80, and the mountain fold lines 75a, 77a
Is bent with respect to the second side surface portion 75 and the fourth side surface portion 77. As shown in FIG. 21, the bent second lid piece 79 and fourth lid piece 81 are in a state where their outer peripheral portions are abutted against each other.

As described above, the outer box body 70 includes the first lid portion 78 to the fourth lid portion 81, the first corner portion 82 to the fourth corner portion 85, and the first side surface portion 74 to the fourth side portion 74. Side 77
After being bent to form a thin box shape, a seal body 86 is attached across the second lid piece 79 and the fourth lid piece 81 whose outer peripheral portions are butted against each other, and the popcorn container 7 is attached.
0 is completed. The seal body 86 is coated with an adhesive having a relatively weak adhesive force. Therefore, the seal body 86 is easily peeled off as the inner bag body 22 expands during the cooking operation described later.

This fourth embodiment popcorn container 70
Also, as described above, since the shape before cooking is defined by the shape of the outer box body 71 to be a flat and generally thin box shape, it is possible to store them in an individual packaging box in a stacked state. It is possible and very easy to handle for transportation. When the popcorn container 70 is taken out from an individual packaging box and stored in a sales floor or a stocker of a vending machine, the popcorn container 70 can be stored in any state such as a stacked state or a leaning state. Since this is possible, space efficiency can be improved.

The popcorn container 70 of the fourth embodiment configured as described above is directly loaded into the microwave oven for cooking. When the cooking switch of the microwave oven is operated, the loaded popcorn container 70
Is irradiated with electromagnetic waves. The cone 46 sealed in the inner bag body 22 is heated by the applied electromagnetic waves and explodes and expands inside the inner bag body 22 to become a popcorn 47.
Seasoning or oil adheres to the popcorn 47. The cooking of the cone 46 is efficiently performed by the electromagnetic wave-sensitive heating agent layer provided on the bottom surface side generating heat due to the irradiation of the electromagnetic waves and also being heated from the bottom surface side.

Since the outer box body 71 receives the internal pressure due to the expansion operation of the inner bag body 22, as shown in FIG. 22, the first lid piece 78 to the fourth lid body for closing the inner bag body loading portion 23. The lid body formed by folding the piece 81 gradually expands. In this case, the popcorn container 70 includes the second lid piece 7
9 and the fourth lid piece 81 are spread and the joined seal body 86 is peeled off. Then, the first lid body piece 78 to the fourth lid body piece 81 deploy almost simultaneously with the folded first corner portion 82 to the fourth corner portion 85 as guides.

As described above, the first to the fourth lid pieces 78 to 4
As shown in FIG. 23, the inner bag body 22 in which the lid piece 81 is unfolded largely swells and is exposed from the outer box body 71 in a state where the outer peripheral portion is held by the outer box body 71. And
When the popcorn container 70 has been cooked for a predetermined time, as shown in the figure, the first corner portion 82 to the fourth corner portion 8 in a state of protruding outward in the shape of a triangle.
It is taken out of the microwave oven by grasping any one of the five.

As described above, the popcorn container 70 of the fourth embodiment is also a separate member such as the outer box body 71 and the inner bag body 22.
And the first corner portion 82 to the fourth corner portion.
Since it has the grip portion constituted by the corner portion 85, even if it is taken out from the microwave oven immediately after the heating and cooking is finished, there is no inconvenience that it cannot be held by hand because it is hot. Then, in the popcorn container 70, the grip portion is grasped, and the open string 43 is strongly pulled to peel off the joint portion of the inner bag body 22 on the ceiling side, and the cooked popcorn 14 is taken out and enjoyed.

In each of the embodiments described above, the popcorn container in which the corn which is a food material is sealed inside the inner bag body 22 is shown, but the present invention is not limited to such popcorn container, and the material is not limited to the popcorn container. As food, other than a corn, a food material whose apparent volume is expanded by being heated by being irradiated with electromagnetic waves by being loaded in a microwave oven device, for example, a suitable food material such as cake material or bread material may be used. Of course.

[0094]

As described above in detail, according to the food packaging container for a microwave oven of the present invention, a food material that swells and increases in apparent volume when heated is sealed together with an electromagnetic wave sensitive heating agent. It is composed of an inner bag and an outer box containing this inner bag, and the size before cooking is almost the same as the volume of food material, and it is loaded into the microwave oven as it is and cooked. Therefore, it does not require a large storage space and is extremely easy to handle and cook. In addition, even if the food packaging container for the microwave oven is heated and cooked and the food material is inflated, the inner bag body is held by the outer box body and expands, so that it spills from the inner bag body and scatters in the microwave oven device. Since the outer box body is expanded and expanded by the inner bag body that expands, the cooking state is dynamically displayed, so that the cooking state can be identified and made fun. Produce an effect.

[Brief description of drawings]

FIG. 1 shows, as a first embodiment of a food packaging container for microwave oven cooking according to the present invention, a state before cooking of a popcorn container in which corn is sealed in an inner bag as a food material that expands when heated. It is a perspective view shown.

FIG. 2 is a perspective view showing a state after the popcorn container is loaded into a microwave oven and heated and cooked.

FIG. 3 is a perspective view showing a state in which the cooked popcorn container is held.

FIG. 4 is a perspective view illustrating a state in which the inner bag of the popcorn container is opened and popcorn is taken out from the inside.

FIG. 5 is a vertical cross-sectional view of the inner bag body for explaining the schematic configuration of the inner bag body housed in the outer box body of the popcorn container.

FIG. 6 is a development view of an outer box body constituting the popcorn container.

FIG. 7 is a perspective view showing a state in which the outer box body is assembled.

FIG. 8 is an exploded perspective view of a popcorn container for explaining an operation of storing the inner bag body in the assembled outer box body.

FIG. 9 is a perspective view showing a state before cooking of a popcorn container, which is shown as a second embodiment of the food packaging container for microwave cooking according to the present invention.

FIG. 10 is a perspective view showing a state after the popcorn container is loaded into a microwave oven and cooked.

FIG. 11 is a perspective view illustrating a state in which the popcorn container is gripped and the inner bag is opened.

FIG. 12 is a development view of an outer box body forming the popcorn container.

FIG. 13 is a perspective view showing a state before cooking of an inner bag body housed in an outer box body of a popcorn container.

FIG. 14 is a perspective view of the inner bag for explaining a state in which the sealed cone is being inflated by being heated and cooked by being loaded into a microwave oven.

FIG. 15 is a perspective view illustrating a state of the inner bag body after cooking.

FIG. 16 is a perspective view illustrating an opening operation of a cooked inner bag body.

FIG. 17 is a perspective view showing a state before cooking of a popcorn container shown as a third embodiment of the food packaging container for microwave cooking according to the present invention.

FIG. 18 illustrates a state in which the popcorn container is loaded into a microwave oven and heated and cooked, so that the corn explodes and expands, the inner bag expands, and the lid part of the outer box expands. It is a perspective view.

FIG. 19 is a perspective view showing a state where the popcorn container is cooked by heating and then gripped by a handle.

FIG. 20 is a development view of an outer box body forming the popcorn container.

FIG. 21 is a perspective view showing a state before cooking of a popcorn container, which is shown as a fourth embodiment of the food packaging container for microwave cooking according to the present invention.

FIG. 22 illustrates a state in which the popcorn container is loaded into a microwave oven and heated and cooked, so that the corn explodes and expands, the inner bag expands, and the lid part of the outer box expands. It is a perspective view.

FIG. 23 is a perspective view showing a state where the popcorn container is cooked by heating and then gripped by a handle.

FIG. 24 is a development view of an outer box body that constitutes the popcorn container.

[Explanation of symbols]

1 Popcorn Container (Food Packaging Container for Microwave Oven Cooking) 2 Outer Box Body 3 Inner Bag Body 4 Popcorn 10 Handle Area Area (Handle) 11 Inner Bag Body Loading Section 13 Electromagnetic Sensitive Heating Agent Layer 14 Corn (Food Material)

Claims (7)

[Claims] 1. A food material which is provided with an electromagnetic wave sensitive heating agent layer and is expanded by heating through an electromagnetic wave to be irradiated and an electromagnetic wave sensitive heating agent layer which generates heat by the irradiation of the electromagnetic wave to expand and have an apparent volume. An inner bag body formed by joining the sheet bodies to be sealed in a bag shape and a development part by folding hard paper into a substantially thin box shape, and the inner bag body in which food ingredients are sealed is stored inside. The outer box body containing the inner bag body is provided with an inner bag body loading section. A food packaging container for microwave cooking, characterized in that it is configured to gradually expand three-dimensionally while holding the outer peripheral portion. 2. The outer box body is a substantially thin rectangular tube having a developing portion formed by a bellows portion which is integrally formed continuously with an outer peripheral side surface portion which constitutes an inner bag body loading portion for accommodating an inner bag body. The sealed food material is heated and inflated to expand into a substantially long bag shape, and the bellows part expands according to the inner bag body and the body part of the inner bag body is expanded into a belly-wrapped state. The food packaging container for microwave oven cooking according to claim 1, wherein the food packaging container is constructed as follows. 3. The outer box body has a lid body section for closing a thin box-shaped inner bag body loading section in which an inner bag body in which food raw materials are sealed is incorporated.
It is configured as a developing portion by folding a plurality of lid pieces that are continuous from the outer peripheral side surface portion that constitutes the inner bag loading portion,
The microwave oven according to claim 1, characterized in that the lid piece gradually expands from the folded state in accordance with the inner bag body that expands when the sealed food material is heated and expanded. Food packaging container for cooking. 4. An outer box body, wherein a deployment guide slit and a deployment guide piece are formed corresponding to each other on lid pieces which are adjacent to each other and which constitute a deployment portion, and the deployment guide slit and the deployment guide piece are opposed to each other. While being held in a folded state by engaging, the expansion guide piece moves along the expansion guide slit in accordance with the inner bag body that expands by being heated and expanded by the sealed food material. The food packaging container for microwave oven cooking according to claim 3, wherein the lid piece is configured to be gradually expanded from a folded state. 5. A thin box-shaped outer box body, wherein a lid body section for closing an inner bag body loading section for accommodating an inner bag body in which food raw materials are sealed,
It is configured as a developing portion by folding a plurality of lid pieces that are continuous from the outer peripheral side surface portion that constitutes the inner bag loading portion,
These lid pieces are held in a folded state by a seal body having a weak adhesive force, and the lid body is peeled off by the inner bag body that expands when the sealed food material is heated and expanded. The food packaging container for microwave cooking according to claim 1, wherein the body piece is configured to be gradually expanded from a folded state. 6. The inner bag body is provided with an electromagnetic wave sensitive heating agent layer on a bottom surface thereof, and integrally formed with a bellows portion which forms an expansion space portion continuously with a storage portion for storing food ingredients,
2. The bellows portion expands and expands into a substantially long bag shape when the food material is heated and expanded through the electromagnetic wave to be irradiated and the electromagnetic wave sensitive heating agent layer that generates heat due to the irradiation of the electromagnetic wave. To the food packaging container for microwave oven cooking according to claim 5. 7. The outer bag body is an inner bag body when the food material is inflated by being heated and inflated through an electromagnetic wave-sensitive heating agent layer which generates heat by irradiation of electromagnetic waves and electromagnetic waves. The opening part is formed by joining the ends with an adhesive having a weak adhesive force, and the opening string is joined so that one end is exposed to the inner surface of the joining end part that constitutes the opening part. The food packaging container for microwave oven cooking according to any one of claims 1 to 6 characterized by things.