JP2003246353A - Packaging material for microwave heating, package for microwave heating using it, and food for microwave heating - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a packaging material for microwave heating which does not cause harm to a human body by a change in quality, even when a packaging becomes a high temperature by heating the packaging containing a food with a microwave oven for heating or cooking the food, a packaging for microwave heating using the packaging material and the food for microwave heating packed in the packaging. <P>SOLUTION: The packaging material for microwave heating 1 is prepared by sticking a sheet 3, in which a change in quality such as melting or the like does not occur under a high temperature circumstance by heating with the microwave oven, on the surface of a heat resistant synthetic resin film 2 as a base material by the use of a food adhesive 4. The packaging for microwave heating is prepared by forming the packaging material for microwave heating 1 to a bag. The food for microwave heating is prepared by packing it in the packaging. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packaging material for heating a microwave oven, which heats or cooks the enclosed food by heating the packaging material containing the food in a microwave oven, and a microwave oven using the same. The present invention relates to a heating package and a microwave-heated food product.

[0002]

2. Description of the Related Art Foods that are heated or cooked using a microwave oven (hereinafter referred to as "microwave oven foods") are
By heating with a microwave oven without heating when heating or cooking, you can easily heat or cook food to an edible state without polluting the kitchen,
In addition, since it is possible to easily heat and cook a desired amount even in a small amount such as for one person, the demand for it has been greatly increased in recent years.

[0003] And, as a microwave oven heating wrapping body which can wrap such a microwave oven food and can heat the wrapped packaging body as it is in a microwave oven,
A heat-resistant synthetic resin film that can be heat-welded by melting at high temperature and is formed into a bag shape as a packaging base material,
It is generally known that a heat-resistant synthetic resin container is used as a packaging base material and a lid is welded by using a heat-welding adhesive that melts at a high temperature. Therefore, the packaging base material is either heat-meltable or heat-meltable adhesive in order to enable formation into a bag-shaped package or to seal the food insertion opening after containing the food. Must be equipped with agents

[0004]

However, in the microwave heating package as described above, since the synthetic resin film itself as the packaging base material and the adhesive itself are thermally melted, the microwave food is When a package containing food for heating or cooking is heated in a microwave oven, the package sometimes becomes higher than the heat-resistant temperature and deteriorates, melts, or causes some damage to the body. It may give rise to substances such as That is, if the food is simply heated by heating, the temperature will not be so high, but when heating frozen foods or raw food materials, it is necessary to heat them in a microwave oven for a long time. As a result, the packaging base material and the adhesive often have a high temperature higher than the heat resistant temperature.

In this case, if the visible substance melts and adheres to the food, it can be consciously avoided, but invisible components of the packaging base material or the adhesive are dissolved, or the packaging base When some harmful substances are generated from materials or adhesives and are attached to foods, it is unavoidable and the influence on the body is very anxious.
Further, even if no change in appearance is observed, an unpleasant odor other than food may occur when the package is opened, which also gives a certain sense of danger to the body.

[0006] However, no means or measures have been proposed so far that can be considered to be completely harmless to the body and that appropriately responds to the deterioration of the packaging material due to heating in the microwave oven.

The present invention is intended to cope with such a problem, and when heating or cooking food, the entire package containing the food is heated in a microwave oven, and even if the package becomes high in temperature, it deteriorates. And packaging material for microwave oven heating that does not generate a strange odor,
It is an object of the present invention to provide a microwave oven heating package using the same and a microwave oven heated food contained in the package.

[0008]

[Means for Solving the Problems] In order to achieve the above-mentioned object, the present inventor first focused on a packaging material that comes into direct contact with food, and selected a material capable of withstanding high temperature heating in a microwave oven. In addition to the wrapping material, we will also focus on the adhesive used to form this wrapping material into a package such as a bag or container, as well as the packaging material. By selecting a substance capable of withstanding the above, the inventions relating to a packaging material for microwave oven heating, a microwave oven heating packaging body, and a microwave oven heated food, which are safe for the body, have been completed as follows.

That is, the packaging material for heating a microwave oven of the present invention is a packaging material used for a package body in which food is contained and heated as it is in a microwave oven to heat or cook the food. By using a viscous edible adhesive, a sheet that does not deteriorate such that the synthetic resin film is used as the base material and melts in the high temperature environment due to heating in a microwave oven or the release of components is generated It is a laminated structure.

By specifying the wrapping material and the adhesive constituting the wrapping material in this manner, even if the wrapping material is heated to a high temperature for a long time in a microwave oven, a sheet that comes into direct contact with food can be used. It does not cause alterations such as melting, and it does not cause substances that may cause some damage to the body from the adhesive, so it is safe to keep food in the package. You will be able to cook with heating. Therefore, when the food is heated, the heating can be performed under the conventional heating conditions without lowering the heating temperature or shortening the heating time.

At this time, as the heat-resistant synthetic resin film, specifically, for example, nylon, polyethylene, polyester (PET: polyethylene terephthalate),
A simple substance (single layer film) of polypropylene, polyamide, polystyrene, etc., or a composite body (laminated film) of these,
Alternatively, an aluminum vapor-deposited body having aluminum vapor adhered to the surface thereof may be considered. The heat resistant synthetic resin film may be uniaxially stretched or biaxially stretched.

As a sheet which does not deteriorate in a high temperature environment by heating in a microwave oven, it can withstand a temperature of 100 to 120 ° C., which is the temperature inside the package during heating in a microwave oven, and can be used as an encapsulating food during heating. Contact surface temperature is 10
A heat resistant sheet that can withstand 0 to 200 ° C is desirable. Specifically, for example, kraft paper made mainly from pulp, high-quality paper, rayon paper, sulfuric acid pulp paper (glassine), synthetic fiber paper,
Paper such as Hosho paper, non-woven fabric, sutures and bamboo skins from which leaves of trees and plants have been thinly peeled, bamboo leaves, bamboo leaves, banana leaves, hou leaves,
It is conceivable to use thin paper such as.

Further, as an edible adhesive having viscosity,
Food materials, foods, food additives, and other edible materials that can be simply viscous, but if possible, those that cure (solidify) at room temperature,
A material that cures at room temperature but softens when heated is desirable. Specific food materials include, for example, agar, gelatin, sugar (such as starch) glue, rubber, rubber-decomposing resin,
Low-molecular-weight rubber, guaiac resin, gum bases such as jelton, chicle, and ester gum can be considered. Also,
As a specific food, for example, starch syrup and the like can be considered.
Further, as specific food additives, for example, gum arabic, locust bean gum, guar gum, tamarin gum, pectin, xanthan gum, thickening polysaccharides such as tragacanth gum, sodium alginate, sodium caseinate, paste such as carrageenan, glycerin, and the like. Conceivable. The sheet may be entirely attached to the base material made of the heat-resistant synthetic resin film by using the edible adhesive having the above-mentioned viscosity, but if the sheet is partially attached, it may be necessary later. It is desirable because the two can be easily peeled off.

The microwave heating package of the present invention is a package in which food is contained and heated in a microwave to heat or cook the encapsulated food. A single-layer bag body is formed by using a sheet that does not undergo alteration such as melting under a high temperature environment as a packaging material, and bonding the packaging material with a viscous edible adhesive so as to form a bag shape. The sheet used as a packaging material and the viscous edible adhesive used for forming the sheet into a bag are the same as those exemplified in the packaging material for microwave oven cooking.
At this time, as the heat-resistant synthetic resin film is attached to the outer surface of the sheet formed in the bag shape, in other words, the heat-resistant synthetic resin film is formed in the bag shape, and inside the high temperature environment by heating in a microwave oven. You may make it arrange | position the bag body formed with the sheet | seat which does not produce | generate alterations, such as melting below. Then, as the adhesive for attaching the bag-shaped sheet and the heat-resistant synthetic resin film, it is desirable to use the above-mentioned edible adhesive.

By specifying the wrapping material and the adhesive constituting the wrapping material in this way, even if the wrapping material is heated to a high temperature for a long period of time in the microwave oven, the quality of the sheet melts even if the temperature of the wrapping material becomes high. Without causing
In addition, the adhesive does not generate a substance that may be harmful to the body, and the food can be safely heated and cooked. Therefore, when the food is heated, the heating can be performed under the conventional heating conditions without lowering the heating temperature or shortening the heating time.

Another aspect of the present invention is a package for heating a microwave oven, which is a package in which a food is contained and heated in a microwave to heat or cook the encapsulated food, which is a heat-resistant synthetic resin. A sheet that does not cause alteration such as melting under high temperature environment due to heating in a microwave oven on the surface of a film as a base material is pasted with a viscous edible adhesive to form a laminated packaging material, and the laminated packaging material is Also, a laminated bag body is formed by forming the sheet into a bag shape so as to be an inner layer. At this time, similarly to the microwave heating packaging body, the sheet used as a packaging material and the edible adhesive used for forming this sheet into a bag shape are the same as those exemplified in the microwave cooking packaging material. I shall use one.

By identifying the wrapping material and the adhesive which constitute the wrapping material in this manner, and further wrapping so that the sheet side of this wrapping material comes into contact with the food, the wrapping material can also be formed by heating for a long time in a microwave oven. Even if the temperature rises, the sheet that is in direct contact with the food will not be altered such that it melts. In addition, the adhesive does not generate a substance that may be harmful to the body, and the food can be safely heated and cooked. Therefore, when the food is heated, the heating can be performed under the conventional heating conditions without lowering the heating temperature or shortening the heating time.

Still another invention of the microwave heating packaging body of the present invention is a packaging body obtained by heating a food containing food by heating it in a microwave oven and cooking the food. Even if it is a laminated container by sticking a sheet that does not cause deterioration such as melting in a high temperature environment by heating in a microwave oven with a resin-based container as a base material through a viscous edible adhesive is there. At this time, similarly to the microwave heating packaging body, the sheet used as the packaging material and the edible adhesive used for forming this sheet into a bag shape are the same as those exemplified in the microwave heating packaging material. I shall use one. further,
The microwave oven heating package consisting of the above laminated container has a heat-resistant synthetic resin film as a base material, and a sheet on the surface of which does not cause alteration such as melting under high temperature environment due to heating in a microwave oven and has viscosity. It is desirable to provide a lid body made of a laminated packaging material attached with an edible adhesive or a lid body made of a sheet that does not cause alteration such as melting in a high temperature environment simply by heating in a microwave oven.

In this way, by specifying the inner surface material constituting the package and the adhesive for fixing the inner surface material to the base material, it is assumed that the package body is heated to a high temperature for a long time in the microwave oven. However, the inner sheet, which is in direct contact with the food, will not be altered such that it melts.
In addition, the adhesive does not generate a substance that may be harmful to the body, and the food can be safely heated and cooked. Therefore, when the food is heated, the heating can be performed under the conventional heating conditions without lowering the heating temperature or shortening the heating time. In addition, a lid can be attached to the food insertion opening of the package by using the above-mentioned adhesive agent to close the package, so that the package can be safely sealed for long-term heating in a microwave oven.

Further, the microwave-heated food of the present invention is
It is also one in which food is contained in any one of the aforementioned microwave oven heating packages. At this time, it is desirable that the food container be sealed with the edible adhesive having the above-mentioned viscosity. And, as the food to be accommodated in the microwave heating package, not only the half-heated cooked product that has been subjected to heat treatment halfway after seasoning, and the cooked product that has been completely heat-treated after seasoning, It is also intended to be a combination of uncooked food and seasoning liquid, and an unheated cooked food that is a seasoned food. Then, as specific contained foods, for example, dumplings, steamed foods for dim sum, grilled fish, grilled meat, stir-fried vegetables, and the like can be considered. Further, these foods may be frozen.

As described above, by putting the food in the packaging in which the packaging material and the adhesive which come into contact with the food material are specified, the food can be safely cooked by heating it in the microwave oven as it is. Become. Moreover, even for unheated cooked foods and frozen foods that require a long time for heating cooking, the sheet that is in direct contact with the food does not undergo alteration such that it melts, and the adhesive also The food can be cooked warmly without producing any substance that may be harmful to the body.

[0022]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a partially enlarged cross-sectional view showing a packaging material for heating a microwave oven of the present invention, which can heat or cook the enclosed food by enclosing the food and heating it in a microwave oven as it is. The packaging material 1 for heating a microwave oven has a heat-resistant synthetic resin film 2 as a base material, and has a surface that can withstand a packaging temperature of 100 to 120 ° C. during heating in a microwave oven and is a food product during heating. It has a laminated structure in which a heat resistant sheet 3 that withstands the contact surface temperature of 100 to 200 ° C., which does not cause alteration such as melting in a high temperature environment, is attached by a viscous edible adhesive 4.

That is, the heat resistant synthetic resin film 2 is
A single-layer film or a laminated film made of any of the materials described in [0011], and [001
[3] A layer made of the edible adhesive 4 described above is provided, and the sheet 3 made of any material described in [0012] is laminated to form a single packaging material. is doing.

A layer of the edible adhesive 4 is provided on the surface of the heat-resistant synthetic resin film 2 by means such as spraying with a spray or coating with a brush, and the heat-resistant synthetic resin film 2 and the sheet 3 are integrally attached. Can match. Then, the bonding method, that is, the bonding structure, can be arbitrarily selected and adopted depending on the usage conditions as shown in FIGS. 2 to 5, for example. The microwave oven heating packaging material shown in FIG. 2 is one in which a layer of the edible adhesive 4a is provided on the entire surface of the heat resistant synthetic resin film 2a, and the sheet 3a is attached to the upper surface thereof. As a result, the heat-resistant synthetic resin film 2a and the sheet 3a are firmly attached to each other and are not peeled off unnecessarily.

In the packaging material for heating a microwave oven shown in FIG. 3, a layer of the edible adhesive 4b is provided with a predetermined width around the periphery of the surface of the heat resistant synthetic resin film 2b, and the sheet 3b is attached to the upper surface thereof. It is a thing. As a result, the layer of the edible adhesive 4b is not provided in the vicinity of the peripheral edge of the heat-resistant synthetic resin film 2b and remains in a state of being exposed for a predetermined width, so that it is possible to heat-bond later.

In the packaging material for heating a microwave oven shown in FIG. 4, a layer of a dot-like edible adhesive 4c is partially provided on the surface of the heat-resistant synthetic resin film 2c, and the sheet 3c is attached to the upper surface thereof. The packaging material for heating a microwave oven shown in FIG. 5 has a layer of the edible adhesive 4d linearly provided on the surface of the heat-resistant synthetic resin film 2d, and the sheet 3d is provided on the upper surface thereof.
Is pasted. This can reduce the amount of edible adhesive used. The size and number of dot-shaped edible adhesive layers provided on the surface of the heat-resistant synthetic resin film, or the width and number of linear edible adhesive layers may be arbitrarily designed according to the purpose.

Further, in the packaging material for heating a microwave oven shown in FIG. 6, a layer of the edible adhesive 4e is provided only on the central portion of the surface of the heat resistant synthetic resin film 2e, and the central portion of the sheet 3e is attached to the upper surface thereof. It is a thing. Thereby, the amount of the edible adhesive used can be reduced, and the food can be stably wrapped by folding the unbonded portion of the sheet from both sides.

The wrapping material in which materials having different properties are pasted together by using an edible adhesive is a wrapping material having a similar pasting structure formed in advance with a predetermined size or a wrapping having a different pasting structure. It is possible to form an arbitrary bag-shaped package by appropriately laminating (combining) the materials with each other or by using a vertical or horizontal pillow bag-making machine from a continuous winding packaging material.

Further, in the present invention, the heat-resistant synthetic resin film and the sheet are partially adhered to each other, so that the packaging body can be separated into each material constituting the packaging material after heating in the microwave oven. The attached heat resistant synthetic resin film and sheet can be easily peeled off. As a result, the packaging material constituting the packaging body is then sorted according to the properties of the material and disposed of. Therefore, for the above reasons, the edible adhesive is not only viscous, but in particular it is one that firmly adheres when cured (solidified) at room temperature. Furthermore, it cures at room temperature but is softened by heating and can be peeled off. Is desirable.

In these microwave heating packaging materials shown in FIGS. 4 and 5, the sheet is not attached to the entire upper surface of the heat-resistant synthetic resin film, and the attached portion of the sheet is, for example, as shown in the drawings. As shown by the dotted lines (broken lines), by sticking the sheet leaving a certain width so that the edible adhesive layer is exposed in the vicinity of its periphery, the edges of the packaging material will partially overlap when packaging food. It can also be glued. That is, when forming into a bag shape, the edges of the packaging material are not continuously joined by joining the layers of the edible adhesive that are partially exposed at the edges of the packaging material to each other. It is designed to be joined in a state where there is a partial gap. As a result, this gap portion can act as a vent when heating the steamed food. In the drawing, the edible adhesive layer exposed at the edge of the packaging material has an arrangement structure such that the edible adhesive layer and the edible adhesive layer are joined to each other when forming into a bag shape. The arrangement may be shifted so that the adhesive layer and the heat-resistant synthetic resin film or sheet are combined with each other.

At this time, the heat-resistant synthetic resin film portion at the edge of the packaging material joined by using an edible adhesive is further heat-welded depending on the type of food to be contained and the cooking method. Is also good. As a result, since the portion where the edible adhesive layer is present is not joined by heat welding, if a gel-like edible adhesive is used, gas or the like from the edible adhesive portion will be applied only when the internal pressure of the package is high. Is released, and conversely, it can act as a check valve that prevents air from entering the package from the outside.

(First Embodiment) As shown in FIG. 7, the microwave oven heating packaging material 1 constructed as described above has a pair of foods 5 placed on the upper surface thereof so as to enclose the foods 5. The edge portions 1-1 and 1-1 facing each other are joined in a palm-like shape to provide the first joint portion 6. Next, the one opening 1-2 formed by wrapping the food is closed to form the microwave heating package 10. Then, the other opening 1-2 of the microwave heating package 10 is used as a food storage port to store the food 5 therein, and the food storage port is closed to form the microwave heated food 11. On this occasion,
The food to be stored in the package may be steamed foods such as dumplings and dim sum, grilled fish, and grilled meat, which are prepared by heating the food in advance, and may be eaten only by heating. It may be cooked or contain raw fish, meat, vegetables, etc. as they are, and cook by eating. Further, these cooked foods, semi-cooked foods or unheated cooked foods may be frozen.

Therefore, the microwave-heated food 11 is
As shown in FIGS. 8 and 9, the heat-resistant synthetic resin film 2
A heat-resistant sheet 3 that does not cause alteration such as melting in a high temperature environment on its surface as a base material, and an edible adhesive 4 having viscosity.
Microwave cooking wrapping material with structure 1 attached by
Is a package 10 for microwave cooking which is formed in a bag shape so that the side of the sheet 3 is on the inside, and the food 5 is entirely packaged, that is, the sheet 3 is in direct contact with the food 5. Heat resistant synthetic resin film 2
Is used as the outer layer and the sheet 3 is used as the inner layer to package the food 5.

At this time, the packaging material used is the one shown in FIG.
A layer of the edible adhesive 4e is provided only in the vicinity of the central portion of the surface of the heat resistant synthetic resin film 2e as shown in Fig. 3, the central portion of the sheet 3e is attached to the upper surface thereof, and the vicinity of the edge portion 3e-1 is not adhered. It can also be of the type. In this case, as shown in FIG. 10, first, the packaging material is arranged so that the sheet 3e is placed inside, and the food 5e is placed on the upper surface of the packaging material. 3e
Only the sheet 3e is bent in a tubular shape first so that -1, 3e-1 are aligned with each other to provide the overlapping portion 8 (state (a)). Next, heat resistant synthetic resin film 2
The opposing edge portions 2e-1 and 2e-1 of e are joined to each other so as to have a palm, and the first joint portion 6 is provided (state (b)). Then, by closing the front and rear openings formed by wrapping the food, the microwave-heated food may be obtained. Both edges 3e-1 of the sheet 3e
The overlapping portions 8 of the two may be sealed with an edible adhesive depending on the properties of the food to be packaged,
It may be non-adhesive without adhering, and by adjusting the degree of overlap (width) of the edges of the sheet as non-adhesive, steam is appropriately discharged from the gap of this superposition part during heating, and food is It is possible to suppress stickiness caused by steam.

As a method for closing the opening 1-2 formed by joining a pair of opposing edges of the sheet, for example, the packaging material used is a heat-resistant synthetic material as shown in FIG. In the case of the type in which the sheet is attached to the entire surface of the resin film, as shown in FIG. 11, the edible adhesive 8 is applied to the upper surface of the sheet 3a which is the inner layer.
It is advisable to provide the above layer and squeeze the openings from above and below to join the upper and lower sheets 3a to each other.

As another method of closing the opening 1-2, for example, the packaging material used is a sheet which is adhered to the heat-resistant synthetic resin film as shown in FIG. If it is of the type attached,
As shown in FIG. 12, the welded portion 9 is formed by heat-welding the upper and lower heat-resistant synthetic resin film 2b portions which are exposed without a sheet near the periphery of the packaging material by crushing the openings from above and below. It may be formed to close the opening.

When the microwave-heated food 11 having the above-described structure is heated in a microwave oven, even if the food is heated to a high temperature for a long time, the sheet that is in direct contact with the food will be melted. It never happens. In addition, the adhesive that bonds the heat-resistant synthetic resin film 2 and the sheet 3 does not generate a substance that is considered to have some harmful effect on the body or generate an offensive odor. . Further, heat conduction from food to the heat-resistant synthetic resin film 2 is suppressed by the sheet 3, which also causes the heat-resistant synthetic resin film to become unnecessarily high in temperature and change in quality, melt, or cause some damage to the body. It does not give rise to any substance that is thought to cause

The microwave heating package may be formed while packaging the food as described above. However, the microwave heating packaging material 1 having the above-described configuration may be used to form a vertical or horizontal pillow bag. A machine may be used to make bags in advance before inserting the food. Then, one of the opening portions of the bag-shaped package is used as a food insertion port, and a food product is inserted from this opening to obtain a microwave-heated food product.

Further, in the present invention, the form of the bag-shaped package is not particularly limited. As in the embodiment of the above technique, the packaging material is bent into a tubular shape and its ends are joined together on one side, and one opening is flatly joined by squeezing it from above and below. A pouch bag or a gusset bag having gussets on both sides thereof may be used, or a three-sided seal bag in which two packaging materials are stacked and the three sides thereof are joined together may be used. And, these packaging bags can be formed by a packaging material which is formed in a predetermined size as a packaging body in advance as described above, or by a vertical or horizontal pillow bag-making machine from a continuous winding packaging material. It can also be formed.

(Second Embodiment) Next, as a microwave oven heating package according to a second embodiment of the present invention,
The three-way seal bag will be described. As shown in FIG. 13, this type of microwave oven heating packaging body 20 includes two packaging materials 2
0a and 20b are overlapped and the three sides thereof are joined together to form a bag, and the food 5 is accommodated inside the bag and the opening is closed to form the microwave-heated food 21.

At this time, the form of the two packaging materials which are superposed on each other and joined on their three sides can be shown, for example, in FIGS. 14 to 26. FIG. 14 shows a first example of two packaging materials to be joined together, and FIG. 15 is a transverse sectional view showing the joining method. The packaging material of the first example shown in FIG. 14 is a heat-resistant synthetic resin film 2 having a desired size.
Both are laminated packaging materials 20a-1 and 20b-1 of the same form in which a layer of the edible adhesive 4 is provided in a dot shape on the surface of and the sheet 3-1 is attached to the upper surface thereof. Then, as shown in FIG. 15, the sheets 3-1 are superposed on each other such that they face each other to form an inner layer, and their three-sided peripheral portions are joined by using, for example, an edible adhesive 18, This is a package for heating a microwave oven.

FIG. 16 shows a second example of the two packaging materials to be joined together, and FIG. 17 is a transverse sectional view showing the joining method. In the packaging material of the second example shown in FIG. 16, a layer of the edible adhesive 4 is provided in a dot shape leaving a predetermined width so that the vicinity of the surface periphery of the heat-resistant synthetic resin film 2 having a desired size is exposed, and the upper surface thereof. The laminated packaging materials 20a-2, 20b having the same form, in which the sheet 3-2 is attached
-2. Then, as shown in FIG. 17, these are stacked on each other so that the sheets 3-2 face each other and become an inner layer, and their three-sided peripheral portions are heat-welded and joined together to form a microwave oven packaging body. It was made to become.

FIG. 18 shows a third example of the two packaging materials to be joined together, and FIG. 19 is a transverse sectional view showing the joining method. In the packaging material of the third example shown in FIG. 18, a layer of the edible adhesive 4 is provided in a dot shape on the surface of the heat-resistant synthetic resin film 2 having a desired size, and on the upper surface thereof,
A sheet 3-3a or 3-3b provided with a plurality of recessed notches 13-3 ... Thirteen
-3 are two (two types) of laminated packaging materials 20a-3 and 20b-3 that are not overlapped with each other. Then, as shown in FIG. 19, the sheets 3-3a, 3
-3b are overlapped with each other so as to face each other to form an inner layer, and the three-sided peripheral portions thereof are joined by using, for example, an edible adhesive 18 or by heat welding to form a microwave heating package. Is.

FIG. 20 shows a fourth example of two packaging materials to be joined together, and FIG. 21 is a transverse sectional view showing the joining method. In the packaging material of the fourth example shown in FIG. 20, a layer of the edible adhesive 4 is provided in a dot shape leaving a predetermined width so that the vicinity of the surface periphery of the heat-resistant synthetic resin film 2 having a desired size is exposed, and the upper surface thereof. A packaging material 2 including a laminated packaging material 20a-4 having a bag-shaped sheet 3-4 attached thereto and a heat-resistant synthetic resin film 2 having a desired size
0b-4. Then, as shown in FIG. 21, the packaging materials are stacked so that the bag-shaped sheet 3-4 of the packaging material 20a-4 is on the inner side, and the heat-resistant synthetic resin film 2 on the three-sided peripheral portion thereof is stacked. By heat-welding and joining each other, a microwave oven heating package is formed.

FIG. 22 shows a fifth example of the two packaging materials to be joined, FIG. 24 is a cross-sectional view showing the joining method, and FIG. 25 is a longitudinal section showing the joining method. It is a side view. In the packaging material of the fifth example shown in FIG. 22, a layer of the edible adhesive 4 is provided in a dot shape leaving a predetermined width so that the vicinity of the surface periphery of the heat resistant synthetic resin film 2 having a desired size is exposed, and the upper surface thereof. A laminated wrapping material 20a-5 in which a sheet 3-5a provided with a folded-back portion 13-5 is formed by bending inward a peripheral edge portion excluding the edge portion serving as a food insertion port.
And a laminated packaging material 20b-5 in which a layer of the edible adhesive 4 is provided in a dot shape on the surface of the heat-resistant synthetic resin film 2 having a desired size, and the sheet 3-5b is attached to the upper surface thereof.
Is. Then, as shown in FIGS. 24 and 25, the sheets 3-5a and 3-5b are overlapped with each other so that the sheets 3-5a and 3-5b face each other to form an inner layer, and the heat-resistant synthetic resin films 2 in the three-sided peripheral portions are heated. By welding and joining, a package for heating a microwave oven is formed. At this time, the overlapped portion of the sheet peripheral portion may be sealed using, for example, an edible adhesive,
It may be non-bonded without being bonded.

FIG. 23 shows a sixth example of the two packaging materials to be joined, FIG. 24 is a cross sectional view showing the joining method, and FIG. 26 is a vertical section showing the joining method. It is a side view. The packaging material of the sixth example shown in FIG. 23 is provided with a layer of the edible adhesive 4 in a dot shape leaving a predetermined width so that the vicinity of the surface periphery of the heat-resistant synthetic resin film 2 having a desired size is exposed, and the upper surface thereof. A sheet 3-6a in which all of the peripheral portion of the package is bent inward to provide a folded-back portion 13-6
The laminated wrapping material 20a-6 to which is adhered and a layer of the edible adhesive 4 are provided in a dot shape on the surface of the heat resistant synthetic resin film 2 having a desired size, and the sheet 3-6b is provided on the upper surface thereof.
It is the laminated packaging material 20b-6 which stuck. Then, as shown in FIG. 24 and FIG.
-6a, 3-6b face each other so as to be an inner layer, and after accommodating food (not shown) between the sheets (in the packaging material), heat-resistant synthetic resin film on all peripheral portions thereof The two are heat-welded and joined together to form a microwave oven heating package. On this occasion,
Similar to the packaging material of the fifth example, the overlapped portion of the sheet peripheral portion may be sealed with, for example, an edible adhesive, or may be non-adhesive without being adhered.

(Third Embodiment) Next, a microwave oven heating package according to a third embodiment of the present invention will be described. The microwave oven heating package 30 shown in FIG. 27 comprises a container body 25 as a microwave oven heating base 30a and a lid 26 as a microwave oven heating covering material 30b. The microwave oven heated food 31 is obtained by sealing the lid 26.

The structure is as shown in FIG.
First, a tray-shaped heat-resistant synthetic resin container 22 is used as a base material, and a heat-resistant sheet 3 that does not undergo alteration such as melting under a high temperature environment due to heating in a microwave oven is formed on the inner surface of the container 22 as a viscous edible adhesive 4. The microwave oven heating substrate 30a having the structure attached by the above is used as the container body 25. On the other hand, the covering member 30b for heating a microwave oven having a structure in which the heat-resistant synthetic resin film 2 is used as a base material and the heat-resistant sheet 3 is attached to the surface thereof with the edible adhesive 4 is used as the lid 26. Then, the food insertion opening of the container body 25 is covered with a lid 26 so that the sheet 3 side of the microwave oven heating coating material 1 is on the inside, and the lid is closed. Foods at this time are steamed foods such as dumplings and dim sum, grilled fish, grilled meat, and the like, which are foods that have been cooked or cooked in advance, and those that are eaten by heating, raw fish and meat, The vegetables are stored as they are,
It may be prepared by eating by heating, and is particularly suitable for foods with a large amount of juice. Further, these cooked foods, semi-cooked foods or unheated cooked foods may be frozen.

In addition, as a method for closing the food insertion port portion at this time, for example, the covering material used for the lid body is a sheet adhered to the entire surface of the heat resistant synthetic resin film as shown in FIG. In the case of the type, as shown in FIG. 28, the heat-resistant synthetic resin container 22 or the heat-resistant synthetic resin film 2 and the sheet 3 are provided on the upper surface of the sheet 3 which is the inner layer of the microwave oven heating base 30a. A layer of edible adhesive 28 having a viscosity similar to that used to bond the layers is provided. Then, the microwave oven heating coating material 30b is covered thereon, and the microwave oven heating base material 30a and the microwave oven heating coating material 30b are joined to close the food insertion opening.

Further, when the covering material used for the lid is made of only the heat resistant sheet 3 which does not cause alteration such as melting in a high temperature environment due to heating in a microwave oven, as shown in FIG. On the upper surface of the sheet 3 which is the inner layer of the microwave oven heating substrate 30a, the heat-resistant synthetic resin container 22 or the heat-resistant synthetic resin film 2 and the same edible adhesive 28 as used for bonding the sheet 3 to each other. Layer. And the microwave oven heating coating material 30b-2 which consists only of the heat resistant sheet 3 is covered on it, and the microwave oven heating base material 30a and the microwave oven heating coating material 30b-2 are joined, and the food insertion port The block may be closed.

When the microwave-heated food 31 having the above-described structure is heated in the microwave, the quality of the sheet that is in direct contact with the food will be melted even if the food is heated to a high temperature for a long time. Will not cause. Further, the heat-resistant synthetic resin container 22 or the adhesive agent for bonding the heat-resistant synthetic resin film 2 and the sheet 3 may also generate a substance that is considered to have some harmful effect on the body or generate an offensive odor. I will not let you do it. Further, the heat conduction from the food to the heat-resistant synthetic resin container 22 in which the food is stored is suppressed by the sheet 3, which also causes the heat-resistant synthetic resin container to become a high temperature higher than the heat-resistant temperature and to be melted. It does not end up or produce any substance that might be harmful to the body. When the container body is used, depending on the food to be stored, the lid body made of the covering material may not be provided, and only the container body made of the microwave oven heating base body may be used as the microwave oven heating package.

(Fourth Embodiment) As a microwave oven heating package according to a fourth embodiment of the present invention, although not shown in the drawing, such as melting in a high temperature environment due to heating in a microwave oven. A heat-resistant sheet that does not deteriorate is used as a packaging material for microwave oven cooking, the opposite edges of the packaging material are joined together so as to mate together, and a first joint is provided, and one opening is closed. By doing so, a microwave oven heating package is obtained. Then, the other opening of the microwave heating package is used as a food insertion port to store food therein, and the food storage port is closed to obtain a microwave-heated food. In addition, as the food to be stored in this case, similar to the above-mentioned food, steamed foods such as dumplings and dim sum, grilled fish, grilled meat, etc., which are cooked or semi-cooked in advance, are heated and eaten. It is possible to use the thus-prepared one, or the one in which raw fish, meat, vegetables, etc. are stored as they are and are eaten by heating and cooking. Further, these cooked food, semi-cooked food or unheated cooked food may be frozen.

When a microwave-heated food having the above-mentioned structure is heated in a microwave oven, even if the food is heated to a high temperature for a long time, the sheet in direct contact with the food or the sheet used as the lid is It does not cause alteration that would melt. In addition, the heat-resistant synthetic resin container or the adhesive that bonds the heat-resistant synthetic resin film to the sheet may also produce substances that are thought to have some harmful effects on the body, or may give off a strange odor. You won't be chilled. Furthermore, heat conduction from the food to the heat-resistant synthetic resin container that holds the food is suppressed by the sheet, and this also causes the heat-resistant synthetic resin container to become a high temperature above the heat-resistant temperature and to deteriorate and melt. It doesn't get stuffy or produce any substance that might be harmful to the body.

[0054]

EXAMPLES Examples of heating a microwave-heated food product of the present invention in a microwave oven will be described below. (First embodiment) A microwave oven packaging body used in the first embodiment is first 170 mm long x 145 mm wide.
Using a polyethylene / nylon multilayer film of the same size as the base material, two edible adhesive layers consisting of linear starch syrup with a width of 8 mm are provided on the surface, and the surface of the multilayer film as the base material is entirely covered. A sheet made of paper is attached so as to cover it to form a laminated packaging material. Next, two sheets of this laminated package are prepared, and the sheets of paper as sheets face each other and are overlaid on each other so as to form an inner layer. A bag-shaped package for microwave oven cooking is obtained by joining using starch syrup, which is an edible adhesive. Then, 60 g of raw mackerel pickled in miso was put into this package, the food insertion opening was closed, and the package was frozen to obtain a microwave-heated food.

Then, at a later date, before heating in a microwave oven, a part of the package was incised to remove steam, and then heat treatment was performed in a frozen state in a 500 watt microwave oven for 3 minutes. As a result, the food is uniformly cooked in a satisfactory condition, and when the package is opened, it mixes with the delicious scent of mackerel pickled in mackerel, and the packaging material becomes dissimilar in that it has been altered by heat. There was no. Also, in addition to miso-pickled fish, mirin-zuke, kasu-zuke, moromi-zuke, koji-shiki, and salt-and-salt fish could be similarly cooked to a satisfactory condition.

(Second Embodiment) A microwave oven cooking package used in the second embodiment is first 220 mm in length.
A polypropylene multi-layer film having a width of 350 mm is used as a base material, and a large number of edible adhesive layers made of spot-like starch paste having a diameter of 10 mm are provided on the surface of the base material. A sheet of non-woven fabric is attached to the upper surface with the width left to form a laminated packaging material.
Then, the sheet of this laminated package was bent in a tubular shape so that the non-woven fabric surface became the inner layer, and its ends were joined with starch paste exposed in the vicinity of the periphery, and one opening was crushed from above and below and the same. A flat pouch bag-like package for microwave oven cooking is obtained by planarly closing it by joining with starch paste. And, in this package, vegetables such as raw cabbage, carrots, bok choy, mushrooms cut into bite-sized pieces 1
After inserting 20 g of the seasoning for stir-fried vegetables, the insertion opening of the food was closed and packaged to prepare a microwave-heated food, which was stored refrigerated.

Then, at a later date, it was heat-treated in a 500 watt microwave oven for 2 minutes. As a result, the food was cooked uniformly and the taste and texture were satisfactory. Moreover,
When the package was opened, it did not mix with the delicious scent peculiar to stir-fried vegetables, and did not cause heterogeneity such that the packaging material was deteriorated by heat.

(Third Embodiment) A microwave oven packaging body used in the third embodiment is first 210 mm long by 210 mm long.
Polyethylene / nylon with a width of 300 mm
A polyethylene terephthalate multilayer film is used as a base material, and an edible adhesive layer made of glycerin is sprayed on the surface of the film to form an edible adhesive layer. Then, a paper sheet is attached from the upper surface to form a laminated packaging material. Then, the sheet as a sheet of this laminated package was bent into a cylinder so that the inner layer was formed, and its ends were joined together using glycerin, which is a similar edible adhesive, and one opening was opened from above and below. A flat pouch bag-like package for microwave oven cooking is also obtained by planarly bonding with glycerin so as to be crushed and closed. Then, three raw dumplings (75 g) were inserted into this package, and the food was closed with the insertion opening of the food to be packed into a microwave-heated food, which was frozen and stored.

Then, at a later date, before heating in a microwave oven, a part of the package was incised to remove steam, and then heat treatment was performed in a 500 watt microwave oven for 2 minutes and 40 seconds in a frozen state. As a result, the food was cooked uniformly and the taste and texture were satisfactory. Moreover, when the package was opened, there was no possibility that the packaging material was mixed with the delicious scent of dumplings and the packaging material was altered by heat.

(Fourth Embodiment) The microwave oven cooking package used in the fourth embodiment has a length of 190 mm ×
170 mm wide polyethylene / nylon /
The aluminum vapor-deposited multilayer film is used as a base material, and the edible adhesive layer made of sodium alginate is applied to the surface of the multilayer film so that the peripheral edge of the multilayer film is exposed, and the edible adhesive layer is provided on the surface. A first laminated wrapping material is formed by sticking a sheet made of paper, which is formed by bending and folding back a peripheral edge portion of the package, which is an edge portion serving as a food product insertion port portion, and folding it back. In addition, the same multilayer film as the first laminated packaging material is used as a base material, and an edible adhesive layer made of sodium alginate is applied to the surface of the multilayer film leaving a predetermined width so that the periphery of the multilayer film is exposed. An agent layer is provided, and a flat paper sheet is attached to the upper surface of the agent layer to form a second laminated packaging material. Then, the paper surfaces as sheets in the first and second laminated packaging materials are superposed on each other so that they face each other to form an inner layer, and the remaining three-sided peripheral portions except for the edge portion which becomes the insertion opening of the food are the same. By using sodium arginate, which is the edible adhesive, to be joined, a bag-shaped microwave oven cooking package is formed. Then, shredded raw burdock root and 70 g of carrot were inserted into this package together with the seasoning for kinpira, and the food insertion port was closed to make a microwave-heated food, which was frozen and stored.

Then, at a later date, before heating in a microwave oven, a part of the package was incised to create a steam vent, and then heat treatment was performed in a 500 watt microwave oven for 4 minutes in a frozen state. As a result, the food was cooked uniformly and the taste and texture were satisfactory. In addition, even when heated for a relatively long time, when the package was opened, the packaging material was not mixed with the delicious scent peculiar to Kinpira, and the packaging material did not change due to heat.

(Fifth Embodiment) A microwave oven packaging body used in the fifth embodiment is first 190 mm long ×
170 mm wide polyethylene / nylon /
Using a polyethylene terephthalate / aluminum vapor-deposited multilayer film as a substrate, spray an edible adhesive layer made of gum arabic on the surface of the multilayer film, leaving a certain width so that the periphery of the multilayer film is exposed. The first laminated packaging material is provided by further providing a sheet made of paper on which the peripheral portion is bent and folded back inward and the portion is provided. Also, a multilayer film similar to the first laminated packaging material is used as a base material, and an edible adhesive layer made of gum arabic is sprayed in a mist form on the surface of the multilayer film leaving a predetermined width so that the periphery of the multilayer film is exposed. Then, an edible adhesive layer is provided, and a flat paper sheet is attached to the upper surface of the edible adhesive layer to form a second laminated packaging material. Then, after the paper sheet surface of the first laminated packaging material is faced up and 80 g of freshly cut radish leaves are stored therein together with the radish leaf boiled seasoning, the paper sheet of the second laminated packaging material is placed. With the sheet surface facing downward, the sheets of paper in these laminated packaging materials are superposed on each other so as to face each other to form an inner layer, and the peripheral portions thereof are all joined by heat welding, whereby A microwave-heated food product was produced at the same time as the product was formed, and this was frozen and stored.

Then, at a later date, before heating in a microwave oven, a part of the package was incised to remove steam, and then heat treatment was performed in a 500 watt microwave oven for 4 minutes in a frozen state. As a result, the food was cooked uniformly and the taste and texture were satisfactory. In addition, even when the package was opened for a relatively long time, when the package was opened, it did not mix with the delicious scent unique to radish leaf boil and did not cause the heterogeneity such that the packaging material was deteriorated by heat.

(Sixth Embodiment) A microwave oven packaging body used in the sixth embodiment is first 190 mm long ×
A polyethylene multi-layer film having a width of 170 mm is used as a base material, and an edible adhesive layer made of xanthan gum is sprayed on the surface to form an edible adhesive layer. Further, a 165 mm length × 130 mm width is provided on the upper surface. A bag body made of a sheet of paper that has been bent is attached to form a first packaging material in a laminated state. Moreover, what consists only of the same multilayer film as the 1st packaging material is made into the 2nd packaging material. Then, the second packaging material is overlaid so that the paper bag body of the first packaging material serves as an inner layer, and the remaining three-sided peripheral portions except for the edge portion that serves as a food insertion port are heat-welded. And joined together to form a microwave oven cooking package. Then, after inserting four (80 g) steamed Shumai which has been preheated into this package, the food insertion opening is closed to make a microwave-heated food, which is frozen and stored. did.

Then, at a later date, before heating in a microwave oven, a part of the package was incised to create a steam vent, and then heat treatment was performed in a 500 watt microwave oven for 2 minutes in a frozen state. As a result, the food was cooked uniformly and the taste and texture were satisfactory. In addition, when the package was opened, there was no possibility that the packaging material was mixed with the delicious scent of Shumai and the packaging material was altered by heat. In addition, when the raw uncooked Shumai which does not heat-treat the food in advance is housed in the microwave cooking package and frozen and cooked as microwave-heated food, heat treatment is performed for 3 minutes and 20 seconds. So, I was able to get a satisfying taste and texture.

[0066]

As described above, according to the present invention, even if a package containing food is heated in a microwave oven for a long period of time, the packaging material is not likely to be deteriorated such as melting or generating an offensive odor. There is no fear of affecting. Therefore, in order to shorten the heating time in the microwave oven, it is possible to obtain the microwave oven-heated food using the raw food material without preheating or semi-heating the food material to be packed. In addition, even if the food is in a frozen state that needs to be heated for a long time regardless of whether it has been cooked or semi-cooked in advance, it is possible to cook the entire package in the frozen state without thawing. I can.

Further, according to the present invention, after heating in the microwave oven, the packaging material for microwave oven heating which constitutes the packaging body for microwave oven can be easily peeled and separated into the constituent materials. This package can be easily sorted by separating it into burnable and non-burnable refuse.

[Brief description of drawings]

FIG. 1 is a partially enlarged cross-sectional view showing a packaging material for heating a microwave according to the present invention.

FIG. 2 is a partially cutaway plan view showing a first bonding structure of the packaging material for heating a microwave according to the present invention shown in FIG.

FIG. 3 is a partially cutaway plan view showing a second bonding structure of the microwave oven heating packaging material according to the present invention shown in FIG.

FIG. 4 is a partially cutaway plan view showing a third bonding structure of the packaging material for heating a microwave according to the present invention shown in FIG.

5 is a partially cutaway plan view showing a fourth bonding structure of the packaging material for heating a microwave according to the present invention shown in FIG. 1. FIG.

FIG. 6 is a partially cutaway plan view showing a fifth bonding structure of the packaging material for heating a microwave according to the present invention shown in FIG.

FIG. 7 is an explanatory diagram sequentially showing a method of packaging food using the packaging material for heating a microwave according to the present invention.

FIG. 8 is a perspective cross-sectional view showing the structure of the microwave-heated food product contained in the first microwave heating package of the present invention.

9 is a partial enlarged cross-sectional view showing the structure of the portion A-1 shown in FIG.

FIG. 10 is a partially enlarged cross-sectional view showing another structure of the microwave oven-heated food contained in the first microwave heating package of the present invention.

11 is a partial enlarged cross-sectional view showing a first structure of a portion A-2 shown in FIG.

12 is a partial enlarged cross-sectional view showing a second structure of a portion A-2 shown in FIG.

FIG. 13 is a perspective cross-sectional view showing the structure of a microwave-heated food product contained in a second microwave heating package according to the present invention.

FIG. 14 is a partially cutaway plan view illustrating a first example of two packaging materials used in the microwave heating packaging body according to the present invention shown in FIG. 13;

15 is a cross-sectional view showing a method of joining the two packaging materials shown in FIG.

FIG. 16 is a plan view illustrating a second example of two packaging materials used for the microwave heating packaging body according to the present invention shown in FIG. 13;

FIG. 17 is a cross-sectional view showing a method of joining the two packaging materials shown in FIG.

FIG. 18 is a plan view illustrating a third example of the two packaging materials used in the microwave heating packaging body according to the present invention shown in FIG. 13;

19 is a cross-sectional view showing a method of joining the two packaging materials shown in FIG.

FIG. 20 is a plan view illustrating a fourth example of two packaging materials used for the microwave heating packaging body according to the present invention shown in FIG. 13;

21 is a cross-sectional view showing a method of joining the two packaging materials shown in FIG.

FIG. 22 is a plan view illustrating a fifth example of the two packaging materials used for the microwave heating packaging body according to the present invention shown in FIG. 13;

FIG. 23 is a plan view illustrating a sixth example of two packaging materials used for the microwave heating packaging body according to the present invention shown in FIG. 13;

FIG. 24 is a transverse cross-sectional view showing a method of joining the two packaging materials shown in FIG. 22 or 23.

FIG. 25 is a vertical cross-sectional view showing a method of joining the two packaging materials shown in FIG. 22.

FIG. 26 is a vertical sectional view showing a method of joining the two packaging materials shown in FIG. 23.

FIG. 27 is a perspective cross-sectional view showing the structure of a microwave-heated food product contained in a third microwave heating package according to the present invention.

28 is a partial enlarged cross-sectional view showing the structure of a B portion shown in FIG. 27.

FIG. 29 is a partial enlarged cross-sectional view showing another structure of the B portion shown in FIG. 27.

[Explanation of symbols]

1 Packaging material for microwave oven 1-1 End 1-2 Openings 2, 2a, 2b, 2c, 2d, 2e Heat resistant synthetic resin film 3 3a, 3b, 3c, 3d, 3e (non-melting) sheet 4 4a, 4b, 4c, 4d, 4e Edible adhesive 5 Food 6 First joint 7 Second and third joint 8 (for blocking) Edible adhesive 9 Welded portion 10, 20, 30 Microwave heating packaging Body 11, 21, 31 Microwave oven heated food product 22 Heat-resistant synthetic resin container 25 Container body 26 Lid body 28 (for closing lid) Edible adhesive 30a Microwave oven heating base 30b Microwave oven heating coating material

Front page continuation (51) Int.Cl. ⁷ Identification code FI theme code (reference) B65D 81/34 B65D 81/34 UF term (reference) 3E064 AA05 AA08 AA11 BA01 BA21 BB03 BB10 EA18 EA30 3E067 AB01 BA12A BA20A BB01A BB05A BB06A BB14A BB15A BB16A BB24A BB25A BB26A BC07A CA17 CA24 EA04 EA05 EA06 EA07 EA08 EA34 EA35 EA37 EE48 FA04 GB01 GB20 3E086 AB01 AD01 BA04 BA14 BA15 BA24 BB41 BB77 CA01 4B035 LC12 LP16 LP45 LT16 4F100 AK01A AK04 AK07 AK42 AK48 AT00C BA02 BA03 BA07 BA10A BA10C CB00B DC21B DC30B DD31 DG10C GB16 GB23 JA06B JJ03A JJ03C JL05 YY00C

Claims (14)

[Claims] 1. A packaging material for use in a package formed by heating or cooking a food product containing a food product and heating the food product in a microwave oven as it is, wherein a heat-resistant synthetic resin film is used as a base material on the surface thereof. A packaging material for heating a microwave oven, characterized in that a sheet, which does not undergo alteration such as melting under a high temperature environment due to heating in a microwave oven, is pasted with a viscous edible adhesive. 2. The sheet withstands a temperature in a package of 100 to 120 ° C. when heated in a microwave oven, and has a contact surface temperature of 100 to 200 in contact with an encapsulated food when heated.
The packaging material for heating a microwave oven according to claim 1, wherein the packaging material is a heat-resistant sheet that withstands ℃. 3. The packaging material for heating a microwave oven according to claim 2, wherein the heat resistant sheet is thin paper. 4. The microwave oven heating according to claim 1, wherein the sheet is partially attached to a base material made of a heat resistant synthetic resin film. Packaging material. 5. The packaging for heating a microwave oven according to claim 1, wherein the edible adhesive is any one of a viscous food material, a food, and a food additive. Material. 6. A package formed by heating or cooking a food product containing a food product and heating the food product in a microwave oven, which does not cause deterioration such as melting under a high temperature environment due to heating in the microwave oven. The sheet is used as the packaging material, and this packaging material is
A package for heating a microwave oven, which is formed into a bag shape by laminating with an edible adhesive having viscosity. 7. The package for heating a microwave oven according to claim 6, wherein a heat-resistant synthetic resin film is attached to the outer surface of the bag-shaped sheet. 8. A package obtained by heating or cooking food containing food by heating in a microwave oven, the surface of which is a heat-resistant synthetic resin film as a base material and heated in a microwave oven. A sheet that does not undergo deterioration such as melting in a high temperature environment due to the above is attached with a viscous edible adhesive to form a laminated packaging material, and the laminated packaging material is formed into a bag shape so that the sheet serves as an inner layer. A microwave heating package. 9. A package obtained by heating or cooking a food product containing a food product and heating the product in a microwave oven, wherein a heat-resistant synthetic resin container is used as a base material on an inner surface of the container product in a microwave oven. A microwave oven heating packaging body, characterized in that a sheet that does not undergo alteration such as melting in a high temperature environment due to heating is attached with a viscous edible adhesive. 10. A laminated packaging material comprising a heat-resistant synthetic resin film as a base material, and a surface of the sheet which is not altered by melting in a high temperature environment due to heating in a microwave oven, is adhered with a viscous edible adhesive. The packaging body for heating a microwave oven according to claim 9, further comprising a lid body made of: 11. The package for heating a microwave oven according to claim 9, further comprising a lid body made of a sheet that does not undergo alteration such as melting in a high temperature environment caused by heating in a microwave oven. 12. A microwave-heated food product, which is obtained by enclosing a food product with the packaging material for heating a microwave oven according to any one of claims 1 to 5. 13. A microwave-heated food product, wherein food is contained in the microwave heating package according to any one of claims 6 to 11. 14. The microwave heated food according to claim 12, wherein the food is frozen.