JP2000062857A - Packaged member for heating by microwave oven or the like and heating method for cooking using the member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packaged member for heating suitable for cooking instant noodle or the like and for carrying out the heat cooking a staple food material such as rice, soup, soup stock or the like by a microwave oven or the like and also provide a heating method suitable for cooking using the packaged member. SOLUTION: A packaged member for heating is constituted of a container main body 10 storing a liquid packaged in an inner packaged body 2 on a staple food material and an outer packaged body 20 packaging the container main body 10. The inner packaged body 20 and the outer packaged body 30 are constituted of a packaging film or sheet having small holes 23 and 33 and a sealing member for sealing the small holes 23 and 33 from inside or outside, and the sealing member is formed of a material of tensile strength weaker that that of the packaging film or sheet. The inner packaged body 20 and the outer packaged body 30 are of the constitution in which the sealing member is broken by the pressure when the pressure inside the packaged body is increased by heating by a microwave oven or the like.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packaging member suitable for heating food in a microwave oven or the like and a heating method for cooking using the packaging member.

[0002]

2. Description of the Related Art Conventionally, the problems to be solved by the invention
As a packaging member for heating food by a microwave oven or the like, a bowl-shaped or bowl-shaped packaging container is generally used.For example, oysters, soups, etc. are separately packaged, such as instant udon and instant fried noodles. It is stored in a container with instant noodles. This packaging container is made of synthetic resin and is formed into a bowl shape or a bowl shape.In the case of instant yakisoba, the instant noodles and bag-like oysters, soups, etc. are stored in the container, and the mouth is opened. It is closed by a sealing member made of paper or aluminum foil.

In such a packaging container, when the contained instant noodles are cooked, a part of the sealing member is peeled off and hot water is poured into the container, and after a lapse of a predetermined time, a bag containing syrup or soup is opened. Need to sprinkle on the noodles. In addition, in some instant noodles such as instant yakisoba, it was necessary to throw away the hot water that had been poured before eating, and then open the bag-shaped oyster or soup and sprinkle it on the noodles.

However, the above-mentioned packaging container has a drawback in that it is necessary to open the bag-shaped syrup or soup and sprinkle it, which is troublesome. Further, depending on the type of instant noodles, it is necessary to dispose of the hot water once poured, and there is a risk that the hot water may cause burns and it takes time to dispose of the hot water. Therefore, an object of the present invention is to provide a packaging member for heating with a microwave oven,
The object of the present invention is to provide a packaging member suitable for cooking instant noodles and the like, and a heating method for suitable cooking using the packaging member.

[0005]

In order to achieve the above object, a heating packaging member for a microwave oven or the like according to the present invention comprises:
A heating packaging member capable of heating and cooking with a microwave oven or the like in a state where main ingredients such as rice and noodles and liquids such as soup and dashi soup are packaged on the main ingredients. And a packaging body for packaging the packaging body, the inner packaging body and the outer packaging body have a packaging film or sheet having a small hole and the small hole is closed from the inside or the outside. Consists of a seal member that
The sealing member is formed of a material having a lower tensile strength than the packaging film or sheet, and these packaging members are ruptured by the pressure when the pressure inside the packaging member increases due to heating by a microwave oven or the like. It is characterized by that.

[0006] According to this packaging member, when heated by a microwave oven or the like, the internal pressure of the inner packaging body containing a liquid such as soup or soup stock rises, and the sealing member closing the small hole is broken and small. The hole opens. When the small holes are opened, the liquid such as the stored soup or dashi stock can be added to the main ingredient, and the main ingredient can be subsequently heated. When the main food material is heated together with the liquid, the seal member of the outer package is broken and the small holes of the outer package are opened. When the heating by a microwave oven or the like is finished at about the same time, the internal pressure of the outer package gradually decreases, and the main food material becomes steamed.

According to the heating wrapping member of the second aspect, the film or sheet constituting the wrapping body is made of a synthetic resin material such as nylon, polypropylene, or polyethylene terephthalate. Is characterized by being made of polyethylene, which has a lower tensile strength than the film or sheet.

According to this structure, a synthetic resin material which is easy to manufacture the container can be used. Furthermore, a heating method for cooking using a heating packaging member such as a microwave oven of the present invention, a main ingredient such as rice and noodles, a soup, a liquid such as soup stock, in a microwave oven or the like in a packaged state. A heating method for cooking, wherein after containing the main foodstuff in the container body, a packaging film or sheet having small air vent holes, and a material having a lower tensile strength than the packaging film or sheet, Of the inner and outer wrappings consisting of a sealing member that closes the small holes from the inside or the outside, first, the liquid wrapped in the inner wrapping is placed on the main food material, and the container body is set in the outer wrapping. After packaging, and then heating with a microwave oven etc., the internal pressure of the package in which the liquid is internally packaged rises, the seal member of the internal package is damaged and the small holes are opened, and the package is stored in the internal package. Liquid By adding it to the main ingredients and continuing heating, the internal pressure of the outer package rises, the seal member of the outer package is damaged, and the small holes are opened to reduce the pressure inside the outer package. Is characterized by.

In the heating method for cooking using the heating packaging member in the microwave oven or the like, the heating of the microwave oven or the like increases the internal pressure of the package in which the liquid is internally packaged, so that the internal package is The sealing member is broken, the small holes are opened, and the contained liquid is added to the main food material. Continuing the heating further increases the internal pressure of the outer package when the liquid is added to the main ingredient, breaks the seal member of the outer package, opens the small holes, and then reduces the pressure, so A steaming action can be performed.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a schematic sectional view of a packaging container according to the embodiment of the present invention. A packaging container 1 as an example of a packaging member for heating by a microwave oven or the like of the present invention is a container body 1 for containing a main ingredient M such as rice and instant noodles.
0 and soup stored on the main ingredient M,
It is configured by an inner wrapping body 20 that stores a liquid L such as soup stock and an outer wrapping body 30 that wraps the container body 10 in a state where the liquid L is stored.

The container body 10 is a container made of a synthetic resin foam sheet in which polystyrene is laminated with polypropylene or the like, and is formed into a bowl shape, a bowl shape, or another shape as in a known form. This container body 10
As the material of, it may be formed of a heat-resistant material for heating a microwave oven, a laminated product of polyethylene terephthalate resin, etc. can also be used, and foaming thereof,
Non-foamed sheets can be used.

The inner wrapping body 20 and the outer wrapping body 30 include outer layers 21 and 31 made of a synthetic resin material made of nylon.
An inner layer 22 made of polyethylene, which has a lower tensile strength than the outer layers 21 and 31, preferably low density polyethylene,
32 is laminated to form a two-layer structure. The outer layer 21 of the inner wrapping body 20 is provided with an appropriate number of small holes 23 on the lower side in contact with the main food material M, and the inner layer 22 closes the small holes 23. In addition, the outer package 3
In No. 0, an appropriate number of small holes 33 are provided in the upper outer layer 31, and the inner layer 32 closes the small holes 33.

A process of cooking a main ingredient M such as instant noodles and a liquid L such as soup, which are packaged by using the packaging container 1, will be described with reference to FIG. FIG. 2 is a schematic view showing a process of cooking instant noodles and the like stored using the packaging container 1 of the present invention. However, in the drawings, the outer layer 21 and the inner layer 22 of the inner package 20 are represented as one layer, and the outer layer 31 and the inner layer 32 of the outer package 30 are represented as one layer.

This packaging container 1 contains a main ingredient M such as rice and instant noodles in a container body 10, and an inner package 20 containing a liquid L such as soup and soup stock on the main ingredient M. All of them are packaged in the outer packaging body 30. When cooking, the food is put in a heating device such as a microwave oven in the packaged state and heating is started. When the heating is started, first, the temperature of the liquid L packaged in the inner wrapping body 20 rises, and as shown in FIG. 2 (b), the internal pressure of the inner wrapping body 20 increases and the inner wrapping body 20 increases. 20 swells. Due to the increase of the internal pressure, the inner layer 22 of the inner package 20 is changed to the outer layer 21.
2 swells to the outer layer 21 side through the small holes 23 and breaks beyond the limit of tension (see FIGS. 2C and 2D). When the inner layer 22 is broken and the small holes 23 of the inner package 20 are opened, the contained liquid L is added to the main ingredient M. Then, when the heating by the microwave oven is further continued, the temperature of the main food material M becomes high together with the added liquid L, and the steam generated from these causes the internal pressure of the outer packaging body 30 to rise. When the internal pressure of the outer wrapping body 30 rises, the inner layer 32 expands to the outside of the outer layer 31 through the small holes 33, and the inner layer 32 breaks like the inner wrapping body 20. Therefore, the pressure in the outer wrapping body 30 is reduced, and at the same time, the main ingredient M
Is steamed. Then, since the outer packaging body 30 returns to normal pressure and the cooking is completed, when the outer packaging body 30 is opened, the main ingredient M cooked by adding soup or the like can be eaten. By setting the time until the end of cooking and the heating time of the microwave oven to be substantially the same, it is possible to end the heating of the microwave oven together with the end of cooking.

The time required until the inner layer 22 of the inner wrapping body 20 and the inner layer 32 of the outer wrapping body 30 are broken is the amount of the liquid L or the main ingredient M to be contained, the size of the small holes 23, 33, the inner layers 22, 32. Since the thickness can be adjusted by setting the thickness appropriately, it can be determined in consideration of the types of the main food material M and the liquid L to be stored. The outer layer 21 of the inner wrapping body 20 and the outer layer 31 of the outer wrapping body 30 can be made of a synthetic resin material such as polypropylene or polyethylene terephthalate in addition to nylon. The inner layer 32 of the body 30 can be made of a synthetic resin material such as polyethylene. In the case of polyethylene, low density polyethylene is preferable, but high density polyethylene can also be used. The configuration of the inner package 20 can be changed depending on the liquid to be contained, and depending on the material, it can be configured to melt at a low temperature.

For example, in the case of instant instant noodles,
The inner package 20 has an inner layer 22 of 1.45 atm and 125 ° C.
Are set to burst, and the heating time is set to be about 5 minutes in total. 3 to 6 are schematic cross-sectional views showing other embodiments. The example of FIG. 3 shows an example in which the inner plate 40 is provided at the mouth of the container body 10, and the inner package 20 containing the liquid L is placed on the inner plate 40. The middle plate 40 has a shape in which the center is slightly lower, and a through hole is provided in the center portion. The small holes 23 and 33 formed in the inner wrapping body 20 and the outer wrapping body 30 are formed in the same manner as in the above embodiment. Therefore, the liquid L discharged from the inner package 20 is allowed to fall on the main ingredient M contained in the container body 10 through the through hole.

In the packaging container of this embodiment, the inner packaging body 20 is prevented from coming into direct contact with the main ingredients M and the liquid L, and the used inner packaging body 20 can be easily taken out. The example shown in FIG. 4 shows an example in which the inner wrapping body 20 and the outer wrapping body 30 are partially integrated.

The outer wrapping body 3 on the upper side of the container body 10
0, a space is provided between the outer layer 31 and the inner layer 32 to form the inner wrapping body 20, and the inner wrapping body 20 shares the inner layer 22 with the inner layer 32 of the outer wrapping body 30. . The liquid L is contained in the inner package 20, and at least a portion containing the liquid L is provided with an outer layer 21 having a small hole 23. The small hole 33 of the outer wrapping body 30 is formed in a portion of the inner wrapping body 20 where the outer layer 21 is not provided, and the inner layer of the outer wrapping body 30 is heated after the main food material M and the liquid L are mixed and heated. 32 is configured to break. Therefore, also in the packaging container of this embodiment, it is possible to obtain the same effects as those of the above-described embodiments.

The embodiment shown in FIG. 5 is similar to the embodiment described above, but the outer wrapping body 30 covers only the mouth of the container body 10 without wrapping the entire container body 10. A seal shape is shown. The inner wrapping body 20 has the same configuration as that of the above-described embodiment, is formed by utilizing a part of the outer wrapping body 30, and has the same operation and effect as the packaging container of the above-mentioned embodiment. It plays.

The embodiment shown in FIG. 6 shows an example in which the outer wrapping body 30 for wrapping the container body 10 has a lid shape. The inner wrapping body 20 has the same configuration as that of the above-described embodiment configured separately from the outer wrapping body 30, and the shapes of the small holes formed in the inner wrapping body 20 and the outer wrapping body 30 are also the same. It is configured. The packaging container of this embodiment can have a configuration almost similar to the conventional shape, which contributes to improvement in productivity.

As the outer layer of the outer package, a member such as a paper bag, a paper box, a cloth bag, a wooden box, or a synthetic resin box can be used depending on the type of the main ingredient. In any of the above-mentioned outer layer members, the inner layer member is set to have a lower tensile strength than the outer layer member, so that it is possible to obtain the same effect as that described in each of the embodiments.

In the outer and inner packages, an example in which the inner layer is provided on one side of the outer layer is shown. However, if the strength of the outer layer can be sufficiently maintained, the inner layer should be provided on the entire outer layer. Alternatively, the inner layer can be provided only in the peripheral portion including the small holes. Further, in any of the above-described embodiments, the structure in which the inner layer is provided inside the outer layer having the small holes to close the small holes from the inner side is shown. It may be provided in. In this case, the inner layer is easily peeled off as compared with the case where the inner layer is provided on the inner side. Therefore, it is preferable to increase the sealing strength of both.

[0023]

As described above, according to the packaging member of the present invention and the heating method for cooking using this packaging member, an internal packaging body containing a liquid such as soup or soup stock,
By directly heating the container body containing the main ingredients with a microwave oven, etc., soup, dashi stock, etc. can be added to the main ingredients, and at the same time, the main ingredients can be heated, making it suitable for cooking instant food. You can eat without hassle. Further, since it is not necessary to dispose of the hot water poured into the container, it is possible to eliminate the risk of being injured such as burns.

[Brief description of drawings]

FIG. 1 is a schematic sectional view of a packaging container according to an embodiment of the present invention.

FIG. 2 is a schematic cross-sectional view showing step by step a step of heating with a microwave oven or the like.

FIG. 3 is a schematic cross-sectional view showing another embodiment.

FIG. 4 is a schematic sectional view showing still another embodiment.

FIG. 5 is a schematic cross-sectional view showing another embodiment.

FIG. 6 is a schematic cross-sectional view showing another embodiment.

[Explanation of symbols]

1 Packaging container 10 container body 20 Internal packaging 21 outer layer 22 Inner layer 23 small holes 30 External packaging 31 outer layer 32 inner layer 33 small holes

Claims (3)

[Claims] 1. A heating wrapping member that can be cooked in a microwave oven or the like in a state in which main ingredients such as rice and noodles and liquids such as soup and soup stock are packaged, and the liquid is wrapped in an internal wrapping body. A container body for accommodating the above on the main food and an outer wrapping body for wrapping the container body, wherein the inner wrapping body and the outer wrapping body have a packaging film or sheet having a small hole and the small hole. The sealing member is closed from the inside or the outside, and the sealing member is formed of a material having a lower tensile strength than the packaging film or sheet,
The packaging member for heating by a microwave oven or the like is characterized in that the sealing member is broken by the pressure when the pressure in the packaging body rises due to heating by a microwave oven or the like. 2. The film or sheet constituting the package,
It is made of a synthetic resin material such as nylon, polypropylene, or polyethylene terephthalate,
The heating packaging member for a microwave oven or the like according to claim 1, wherein the sealing member is made of polyethylene having a lower tensile strength than the film or sheet. 3. A heating method in which main ingredients such as rice and noodles and liquids such as soup and dashi soup are packaged and cooked in a microwave oven, etc., after the main ingredients are contained in a container body. ,
A packaging film or sheet having a small hole for venting air,
Of the inner packaging body and the outer packaging body, which are formed of a material having a lower tensile strength than the packaging film or sheet, and the sealing member that closes the small holes from inside or outside,
First, the liquid packaged in the inner package is placed on the main food material, the container body is packaged in the outer package, and then the package body in which the liquid is packaged internally is heated by heating with a microwave oven or the like. The internal pressure rises, the seal member of the inner package is damaged, the small holes are opened, the liquid contained in the inner package is added to the main food, and the heating is continued to increase the inner pressure of the outer package. A heating for cooking using a heating packaging member such as a microwave oven characterized in that the outer packaging body is decompressed by breaking the sealing member of the outer packaging body and opening the small hole. Method.