JPH1143182A - Packaging body for heat-cooking by microwave oven - Google Patents

Abstract

PROBLEM TO BE SOLVED: To integrate the contents without transferring them into other dishes and to efficiently perform heat-cooking by covering a container for a lid on a main body container by piling up the container for a lid and the main body container each contg. a different content by two stages and sealing tightly them with an easily openable film. SOLUTION: An inner side packaging body A is formed by filling a content 8 in a container 1 for a lid and sealing tightly the flange part 3 of the container for a lid with an easily openable film 2 and the flange part 3 of the container for the lid is joined to a fitting-down stage 5 of a main body container 4 filled with a content 9 to embedded the inner side packaging body A in the main body container 4 and the flange part 6 of the main body container is sealed tightly with an easily openable film 7 to form an outer side container B. When cooking is performed, The easily openable film 7 of the outer side packaging body B is peeled off to transfer the content 8 on the content 9 in the main body container 4. Then, the container 1 is covered in the reverse direction on the fitting-down part 5 of the main body container and it is cooked by heating in a microwave oven.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a microwave oven cooking package in which different contents can be integrated and cooked immediately before cooking in a microwave oven.

[0002]

2. Description of the Related Art In recent years, with the spread of microwave ovens, a plastic container with a flange has been filled with cooked contents, an easily-openable lid film is sealed on a flange portion of the container, and then retort sterilization and the like have been performed for microwave cooking. Products in the form of packaging have become widespread. However, since these packaging forms are sealed so as to completely block the outside air, if they are cooked in a microwave oven as they are, there is a drawback that the contents are ruptured by the vapor pressure of the contents. As a method for solving these problems, the contents must be taken out of the package, or a part of the package has to be cut in advance with a knife or the like to form a steam vent, and then heating and cooking must be performed. Recently, to solve these problems,
A small hole for vapor escape is previously formed in the lid film of the package, and the seal is adhered to the package through the adhesive whose adhesive force is reduced by heat in the small hole. There has been proposed a method in which a part is formed as a weak seal portion, and the portion is cleaved by a steam pressure at the time of heating to form a steam escape port.

However, if a small hole is made and a seal is adhered to that portion, the seal has a weak adhesive strength, so that there is a problem that the seal is peeled off during the distribution process. Providing a weak seal portion has a practical problem. The biggest problem with these conventional microwave cooking packages is that different types of contents (foods) cooked under different conditions (eg, spaghetti and meat sauce, fish and flavored juice, etc.) It was difficult to integrally heat when cooking with a microwave oven, except to transfer to tableware and heat. If different kinds of foods are filled in the same container as in the past, meat sauce is soaked in spaghetti, juice is soaked in fish etc., and it is delicious even when cooked in a microwave oven There was a problem that the taste could not be provided.
In order to solve these problems, a method of separately warming different foods and then integrating them has been considered, but there is a problem that it is troublesome and time-consuming.

[0004]

The present invention has been made as a result of various studies to solve these conventional problems.
The purpose is to combine different types of foods cooked under different conditions when cooking them in a microwave oven, and then put the lid container into the main container without transferring them to the tableware and cook efficiently. It is an object of the present invention to provide a package for heating and cooking a microwave oven.

[0005]

According to the present invention, there is provided an inner package body in which contents are filled in a lid container, and a flange portion of the lid container is sealed with an easy-opening film. After filling the contents into the main body container with a flange portion having a drop step into which the flange portion of the container can be inserted, the outer package body is formed by sealing the flange portion of the main body container with an easy-opening film. A microwave oven cooking package characterized by the fact that, after filling the contents into a lid container, the inner package is obtained by sealing the flange portion of the lid container with an easy-opening film. After filling the contents into a main body container having a drop step portion into which the flange portion of the lid container can be inserted, after filling the inner package into the drop step portion of the main container, Do not seal the flange with an easy-open film. A microwave cooking packaging body, comprising the outer package.

That is, in the present invention, the contents are filled,
An inner package body comprising a lid container whose flange portion is sealed with an easy-opening film, and a content different from the content filled in the lid container, and the flange portion of the lid container A microwave oven cooking package characterized by having a drop step portion that can be filled with, and an outer package body consisting of a main body container whose flange portion is sealed with an easy-opening film, Further, the contents are filled, and the inner package body composed of the lid container whose flange portion is sealed with the easy-opening film is filled with contents different from the contents filled in the lid container. Wherein the inner package is inserted into a drop step into which a flange portion of the lid container can be fitted, and the flange portion comprises a main body container sealed with an easy-opening film. Electronic Di-heating cooking for the package.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1, the present invention, as shown in FIG.
Package A, which is sealed with an easy-open film 2
After filling the contents 9 into the main body container 4 with the flange portion 6 having the drop step 5 into which the flange portion 3 of the lid container 1 can be inserted, the flange portion 6 of the main body container 4 is filled.
2 is a package for heating and cooking a microwave oven comprising an outer package B sealed with an easily-openable film 7, and FIG.
After filling the contents 8 into the lid container 1, the inner package B obtained by sealing the flange portion 3 of the lid container with the easy-open film 2 After the contents 9 are filled in the main body container 4 having the drop step portion 5 which can be inserted, the inner package 1 is inserted into the drop step portion 5 of the main container, and then the flange portion 6 of the main container is removed. This is a microwave oven cooking package comprising an outer package B sealed with an easy-open film 7.

The construction of the present invention and the method of using the same will be described in more detail with reference to FIGS. Inner package A in which contents 8 are filled in lid container 1 and flange portion 3 of lid container 1 is sealed with easy-opening film 2.
Is subjected to sterilization such as retort sterilization, and then the contents 9 in an aseptic state or the like are filled in a main container 4 having a drop step portion 5 into which the flange portion 3 of the lid container can be inserted. After the flange portion 3 of the lid container 1 is inserted into the drop step 5 of the main container 4, the main container formed by sealing the flange portion 6 of the main container 4 with the easy-open film 7 is placed in an outer package. A package for microwave heating and cooking as B is manufactured. As a method of use, first, as shown in FIG. 3, the easy-opening film 7 is peeled off, opened, and removed from the outer package B. Further, the inner package A is taken out, the easy-opening film 2 is similarly peeled off, opened and removed, and the contents 8 in the lid container 1 are transferred onto the contents 9 in the main container 4. Next, as shown in FIG. 4, the lid container 1 is turned over to the drop step 5 of the main container 4, the flange portion 3 of the lid container is inserted, and the lid is covered as the lid of the main container 4, and then heated in a microwave oven. Cook. At this time, since the lid container is inserted into the dropping step 5 of the main container 4, there is a sealing effect due to the weight of the lid container 1 as compared with the conventional microwave heating cooking with a film lid. The filling portion of the above became the upper space portion, and the steam spread evenly and good heating cooking became possible. In addition, since different contents can be mixed immediately before microwave cooking, it is possible to obtain delicious and delicious contents.

Here, the shapes of the lid container 1 and the main container 4 can be changed depending on the contents. Generally, a plastic sheet is obtained by a vacuum molding method, a pressure molding method, a vacuum pressure molding method or the like. Alternatively, it can be obtained by an injection molding method. Examples of the plastic sheet used for the lid container 1 and the main container 4 include polypropylene, polycarbonate, polyester, polystyrene,
One or more sheets of nylon or vinyl chloride resin are used. When barrier properties are required, a multilayer sheet containing a saponified ethylene-vinyl acetate copolymer (EVOH) and a vinylidene chloride resin layer is employed.
Further, the innermost layer of the plastic sheet used for the lid container 1 and the main container 4 needs to be a resin layer that can be sealed with the easy-open films 2 and 7. For these sheet configurations, it is necessary to select a plastic sheet having heat resistance such that the lid container 1 and the main container 4 do not deform during heating and cooking in a microwave oven, and obtain the inner package A and the outer package B. Sometimes it is necessary to have the necessary characteristics. These plastic sheets need to be selected according to the shape of the container and the required characteristics. Generally, sheets having a thickness of 0.2 to 1.2 mm are employed.

The shape of the drop step 5 of the main body container 4 needs to be equal to or greater than the total thickness of the easily-openable film 2 and the flange portion 3 of the lid container 1 which are heat-sealed. Specifically, 1 to 5 mm, preferably 3 to 5 mm is employed. As the width, a width longer than the width of the flange portion 3 of the lid container 1 is adopted, but is generally 0.5 to 3 m.
m, preferably 1 to 2 mm longer.

The easy-opening films 2 and 7 are made of a laminated film of polyester, nylon, vinylidene chloride, EVOH, aluminum foil or the like, and can be heat-sealed with the innermost layers of the lid container 1 and the main container 4. Is required to be laminated on the innermost layer. However, the easy-opening function can be provided to the innermost layer of the lid container 1 and the main container 4, or can be provided to both the film and the container.

[0012]

【Example】

<< Example 1 >> Polypropylene / E having a flange width of 5 mm, a depth of 20 mm, a neck diameter of 120 mm and a shape of 0.4 mm.
Using a transparent sheet of VOH / polypropylene, it was molded by a vacuum molding method to obtain a lid container. Beef bowl ingredients 16 in the container
0 g and heat sealed at 200 ° C. to the flange of the container with a 90 μm film of polyester / vinylidene chloride / nylon / easy-open sealant layer to obtain a sealed container, then retorted at 120 ° C. for 30 minutes. Sterilized.
In addition, the shape of the flange part width 7mm, drop step width 5.5mm and depth 2mm, container depth 40mm, neck diameter 135mm is molded by vacuum molding using a 1mm thick polypropylene / EVOH / polypropylene sheet. Then, a main container was obtained. After filling 200 g of aseptic rice into the main container, the remaining air was purged with N ₂ gas, and a 200 μm film of polyester / vinylidene chloride / nylon / easy-open sealant layer was applied to the flange portion of the main container.
The resultant was heat-sealed at ℃ to obtain a sealed container. One month later, the easy-opening films of the lid container and the main container were peeled off and removed, and then the gyudon ingredients in the lid container were transferred onto the rice in the main container. Then, flip the lid container upside down, insert it into the dropping step of the main container, and cook for 3 minutes in a 500 W microwave oven. The lid container is inserted upside down into the dropping step of the main container, and the entire container is sufficiently filled. Due to the natural space, the steam was able to heat the contents evenly without escaping, and could eat hot and delicious gyudon.

<< Embodiment 2 >> Flange width 5 mm, depth 20
Using a transparent sheet of polypropylene / EVOH / polypropylene having a shape of 0.4 mm and a neck diameter of 120 mm, it was molded by a vacuum molding method to obtain a lid container. The container was filled with 150 g of curry roux and heat-sealed at 200 ° C. with a 90 μm film of polyester / vinylidene chloride / nylon / easy-open sealant layer at 200 ° C. to obtain a sealed container. For 30 minutes. In addition, a flange width of 7 mm, a drop step width of 5.5 mm and a depth of 2 mm, a container depth of 45 mm, and a neck diameter of 135 mm were formed using a 1.2 mm thick polypropylene / EVOH / polypropylene sheet by vacuum forming. To form a main container. After filling 200 g of aseptic rice into the main container, filling the dropping step with a retort-sterilized sealed container for lid containing curry roux, and then using a 80 μm film of polyester / vinylidene chloride / nylon / easy-open sealant layer. 2 on the flange of the container body
Heat sealing was performed at 00 ° C. to obtain a sealed outer package in which the inner package was filled as shown in FIG. Half a month later, after peeling off the easy-opening film of the main container, further take out the inner package,
After peeling the easy-opening film from the inner package, the curry of the contents was transferred from the lid container onto the rice in the main container. Then, flip the lid container upside down, insert it into the dropping step of the main container, and heat cook in a microwave oven of 500 W for 3 minutes. Due to the natural space, the steam was able to heat the contents evenly with almost no escape, and could eat hot and delicious curry rice.

<< Embodiment 3 >> Flange width 5 mm, depth 20
Using a white sheet of polypropylene / EVOH / polypropylene having a diameter of 0.4 mm and a neck diameter of 110 mm, it was molded by a vacuum molding method to obtain a lid container. The container was filled with 150 cc of boiled fish sauce and heat-sealed at 200 ° C. to the flange of the container with a 90 μm film of polyester / vinylidene chloride / nylon / easy-open sealant layer to obtain a sealed container. Also, flange width 7mm, drop step width 5.5mm and depth 2mm, container depth 45m
m, a 125 mm neck diameter was molded by a vacuum molding method using a 1.2 mm thick polypropylene / EVOH / polypropylene sheet to obtain a main body container. Fill the main container with 150 g of mackerel fillet and 20 g of 2% saline,
In a N ₂ gas atmosphere, after filling the sealed inner package body filled with the sauce for boiled fish in the dropping step, the polyester / vinylidene chloride / nylon / 80 μm of the easy-open sealant layer
The film was heat-sealed at 200 ° C. to the flange portion of the main container to obtain a sealed outer package in which the inner package was filled as shown in FIG. Thereafter, the sealed outer package was sterilized in a pressurized retort pot at 200 ° C. for 40 minutes. One month later, the peelable film is peeled off from the outer package, the inner package is taken out, the peelable film is further peeled from the inner package, and the boiled fish sauce is removed from the lid container by the fish in the main container. After being transferred onto the fillet, the lid container was turned upside down and inserted into the drop step of the main container. After cooking in a microwave oven of 500W for 5 minutes, the lid container was inserted upside down into the dropping step of the main container and had sufficient space for the entire container, so that steam almost never escaped. The contents could be heated and a boiled fish almost freshly cooked could be eaten.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a state that an inner package and an outer package have separately.

FIG. 2 is a cross-sectional view showing a state in which an inner package is inserted into a drop step of a main body container of the outer package.

FIG. 3 is a cross-sectional view showing a state in which contents of an inner package are transferred into a main container of an outer package.

FIG. 4 is a cross-sectional view showing a state in which the lid container is turned upside down and is heated in a microwave oven in a state where the lid container is inserted into a drop step of the main container.

[Explanation of symbols]

A inner package 1 lid container, easy-opening film, 3 flange, 8 contents B outer package 4 main container, 5 drop step, 6 flange, 7
Easy-opening film, 9 contents

Claims (2)

[Claims] After filling the contents into a lid container, the inner package body in which the flange portion of the lid container is sealed with an easy-opening film, and the flange portion of the lid container are filled. After filling the contents into a main body container with a flange portion having a drop step which can be removed, and sealing the flange portion of the main body container with an easy-opening film. Cooking package. 2. After filling the contents in the lid container, the inner package body in which the flange portion of the lid container is sealed with an easy-open film is filled with the flange portion of the lid container. After filling the contents in the main body container having a drop step portion that can be made, after filling the inner package in the drop step portion of the main container, the flange portion of the main container is sealed with an easy-opening film. And a package for heating and cooking in a microwave oven.