JP2010023869A - Bag and food product for microwave oven cooking - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bag for microwave oven cooking which stores a main food product and a seasoning liquid separately whose top face film and a bottom face film do not easily separate from each other, whose main food product or seasoning liquid does not flow out, whose main food product and seasoning liquid are not mixed by an external shock, whose main food storage capacity is large and the whole face of whose top face film or bottom face film is printed, and also to provide a food product for the bag. <P>SOLUTION: This bag 100 for microwave oven cooking provided with a main food storage part A for storing food and a seasoning liquid storage part B for storing a seasoning liquid includes a top face film 11, a bottom face film 12 and an inside film 13 between them. Peripheral edges of the top face film and the bottom face film are heat-fused for forming a rim fused part 21. The whole rim of the inside film is heat-fused to either the top face film or the bottom face film. The seasoning liquid storage part is an area surrounded by the inside film and either the top face film or the bottom face film. The main food storage part is an area excluding the seasoning liquid storage part. The tensile strength of the inside film is smaller than those of the top face film and the bottom face film. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a microwave heating bag and a microwave heating food capable of individually containing a main food and a seasoning liquid.

An example of a microwave heating bag for containing a food product obtained by applying a seasoning liquid (sauce or sauce) to a main food (such as ingredients) is the microwave heating bag (200) shown in FIG. , See Patent Document 1 below).
FIG. 10A is a schematic plan view showing the microwave heating bag (200), and FIG. 10B is an α-α cross-sectional view of FIG. 10A.
In the microwave heating bag (200) shown in FIG. 10, the peripheral edge part of the upper film and the peripheral part of the lower film are heat-sealed to form the peripherally-fused part (51), and an easily peelable tape is interposed. The inside of the microwave heating bag (200) is accommodated in the microwave oven heating bag (200) by the easy peeling part (52) in which the upper film and the lower film are fused, and the seasoning liquid is contained in the main food containing part (54). It is fractionated into part (55).
In the microwave heating bag (200), when the internal pressure of the seasoning liquid storage part (55) becomes a predetermined value or more by heating the microwave oven, the easy peeling part (52) peels off and the seasoning liquid is applied to the main food. It becomes. Therefore, it is not necessary to apply the seasoning liquid to the main food after the heating.

  However, in the microwave heating bag (200), since the easily peelable tape is interposed in a part (53) of the peripheral fusion part (51), the part (53) peels off due to the increase in internal pressure, and the part ( 53), the main food and seasoning liquid (particularly liquid seasoning liquid) may flow out to the outside. Moreover, even if it is going to perform pressure cooking, a vapor | steam will escape outside from a part (53) and the inside of the microwave oven heating bag (200) cannot be maintained at a high pressure.

  Furthermore, when some impact is applied from the outside during transportation or storage, the easy peeling portion (52) may peel off. Moreover, since the upper surface film and the lower surface film were melt | fused by the easy peeling part (52), the capacity | capacitance which can be accommodated in the main food accommodating part (54) was not able to be enlarged. In addition, since printing is crushed in the easy peeling portion (52), printing cannot be performed on the easy peeling portion (52), and the entire upper surface and lower surface of the bag cannot be printed.

JP 2007-217044 A

  The present invention has been made in view of the above problems, and can contain the main food and the seasoning liquid separately, and the fusion between the upper film and the lower film is difficult to peel off, and the main food and the seasoning liquid are outside. There is no problem such as spilling out or maintaining high pressure in the bag, and even when subjected to external impact, the main food and seasoning liquid are not mixed, and the capacity of the main food container can be increased. Furthermore, it is an object of the present invention to provide a microwave heating bag and a microwave heating food that can be printed on the entire upper film or lower film.

  The invention according to claim 1 is a microwave heating bag having a main food containing part for containing food and a seasoning liquid containing part for containing a seasoning liquid to be applied to the main food, the upper film and the lower film, It consists of an inner film disposed between these upper and lower films, and a peripheral fusion part is formed by heat-sealing the peripheral part of the upper film and the peripheral part of the lower film, and all the peripheral parts of the inner film are It is heat-sealed to either one of the upper and lower surface films, the seasoning liquid container is an area surrounded by the inner film and one of the films, and the main food container is inside the bag. In the microwave heating bag, wherein the bag is a region other than the seasoning liquid container, and the tensile strength of the inner film is smaller than the tensile strength of the upper film and the lower film. To.

  The invention according to claim 2 relates to the microwave oven heating bag according to claim 1, wherein all the peripheral edge portions of the inner film are heat-sealed to the upper side of the lower film.

  The invention according to claim 3 is characterized in that a part of the peripheral edge portion of the inner film is sandwiched between the upper surface film and the lower surface film and heat-sealed so as to be integrated with the peripheral edge fusion portion. The microwave oven heating bag according to claim 1.

  The invention according to claim 4 is a pressure in which the main food containing portion releases the internal pressure to the outside by opening a part thereof when the internal pressure rises and exceeds a predetermined value equal to or higher than the atmospheric pressure. 4. The microwave oven heating bag according to claim 1, further comprising a release mechanism.

The invention which concerns on Claim 5 is related with the foodstuff for microwave oven heating by which the main food and the seasoning liquid were accommodated in the bag for microwave oven heating in any one of Claims 1 thru | or 4.
About.

According to the first aspect of the present invention, there is provided a heating bag for a microwave oven having a main food containing part for containing food and a seasoning liquid containing part for containing a seasoning liquid to be applied to the main food, the upper film and the lower film. And an inner film disposed between the upper and lower film, and a peripheral fusion part is formed by heat-sealing the peripheral part of the upper film and the peripheral part of the lower film, and the peripheral part of the inner film All are heat-sealed to either one of the upper and lower film, the seasoning liquid container is an area surrounded by the inner film and the one film, and the main food container is the bag It is an area other than the seasoning liquid container in the interior, and the tensile strength of the inner film is smaller than the tensile strength of the upper surface film and the lower surface film. The increase in pressure Jill the seasoning liquid containing portion, broken by being pulled inner film. Thereby, the seasoning liquid flows out into the main food container, the seasoning liquid can be applied to the main food, and the food for microwave heating can be eaten without the trouble of applying the seasoning liquid to the main food.
Moreover, since it is the structure which forms two accommodating parts without using an easily peelable tape, it will be in the state which the melt | fusion of the film of an upper and lower surface becomes difficult to peel, and a main food and seasoning liquid will flow out outside, in the bag Problems such as inability to maintain high pressure do not occur.
In addition, even when an impact is applied from the outside, the fusion between the upper film or the lower film and the inner film does not peel off, so that the main food and seasoning liquid are not mixed during transportation. Therefore, the main food and the seasoning liquid can be properly stored.
Moreover, since the seasoning liquid accommodation part is formed by providing the inner film, the upper surface film or the lower surface film (the film fused to the entire peripheral part of the inner film) is other than the peripheral fusion part. Even if the seasoning liquid storage part is provided without being fused with the film, the capacity of the main food storage part does not decrease so much.
In addition, the bottom film or top film (the film that is not fused to the entire peripheral edge of the inner film) is not fused to other films except for the peripheral fused part, so that the entire surface can be printed. Excellent appeal.

  According to the second aspect of the present invention, the whole seasoning portion of the inner film is thermally fused to the upper side of the lower surface film, so that the seasoning liquid storage portion is located below the main food storage portion. Therefore, after the inner film is broken by the internal pressure, it is possible to prevent the seasoning liquid from remaining in the seasoning liquid container and not being applied to the main food.

  According to the invention of claim 3, a part of the peripheral edge of the inner film is sandwiched between the upper film and the lower film, and is heat-sealed so as to be integrated with the peripheral fusion part. Fusion of the peripheral edge of the inner film to the lower film can be performed easily.

  According to the invention which concerns on Claim 4, when the internal pressure rises and the internal pressure rises and exceeds a predetermined value equal to or higher than the atmospheric pressure, the internal food pressure is opened to the outside by opening a part thereof. By having the pressure release mechanism for releasing, it is possible to prevent the main food containing portion from being broken by the pressure increase in the main food containing portion accompanying heating, and the main food and seasoning liquid from being scattered outside.

  According to the invention which concerns on Claim 5, it is the food for microwave oven heating by which the main food and seasoning liquid were accommodated in the bag for microwave oven heating in any one of Claim 1 thru | or 3, It heats and contains seasoning liquid By increasing the pressure in the part and breaking the inner film, the seasoning liquid can be poured into the main food container and the seasoning liquid can be applied to the main food. Thereby, the food for microwave heating can be eaten without the trouble of putting the seasoning liquid on the main food.

  Hereinafter, referring to the drawings, a microwave heating bag and a microwave heating food containing a main food and seasoning liquid in a microwave heating bag according to the present invention will be described. In addition, in this specification, the film on the front side when the microwave heating bag is placed is referred to as an upper film, and the film on the back side is referred to as a lower film. Moreover, let the left-right direction in FIG. 1 be X direction, and let the up-down direction in FIG. 1 be Y direction.

FIG. 1 is a schematic plan view showing a microwave heating bag (100) according to an embodiment of the present invention.
2 is a schematic cross-sectional view taken along the line α-α in FIG.
FIG. 3 is a schematic plan view immediately after the inner film (13) of the microwave heating bag (100) according to the embodiment of the present invention is broken and the opening (23) is formed.
FIG. 4 is a schematic cross-sectional view taken along the line α-α in FIG.
FIG. 5 is a schematic plan view immediately after the pressure release hole (32) is formed in the microwave heating bag (100) according to the embodiment of the present invention.
6 is a schematic cross-sectional view taken along the line α-α in FIG.
FIG. 7 is a schematic plan view for explaining another embodiment of the pressure release mechanism (3).
In the microwave heating bag (100), the main food is stored in the main food container (A) and the seasoning liquid is stored in the seasoning liquid container (B). 5 does not show the main food and seasoning liquid.

As shown in FIGS. 1 and 2, the microwave heating bag (100) according to the present embodiment has a pair of upper surface film (11) and lower surface film (12), and further has an upper surface film (11) and lower surface film. An inner film (13) is provided between the films (12).
The microwave heating bag (100) is provided with a pressure adjusting mechanism (3).

The shapes of the upper film (11) and the lower film (12) in plan view are rectangular. And the peripheral fusion part (21) is formed by heat-seal | fusing the peripheral part of an upper surface film (11), and the peripheral part of a lower surface film (12).
The area of the inner film (13) is smaller than the area of the upper and lower surface films (11, 12). Specifically, the length in the Y direction is the same as the length of the upper film (11) and the lower film (12), and the length in the X direction is an abbreviation of the length of the upper film (11) and the lower film (12). Half rectangular shape.
The three sides of the inner film (three sides other than the left side (22) in FIGS. 1 and 2) are sandwiched between the upper film (11) and the lower film (12), and integrated with the peripheral fusion part (21). It is fused to become.

Moreover, the side (22) which does not overlap with the peripheral fusion part (21) in the inner film (13) is thermally fused only with the lower film (12). That is, the inner film (13) has all four sides (all peripheral portions) thermally bonded to the upper side of the lower film (12).
In the microwave heating bag (100), the region surrounded by the lower film (12) and the inner film (13) is a seasoning liquid storage part (B) in which the seasoning liquid is stored, and the seasoning liquid storage part An area other than (B) serves as a main food containing part (A) for containing the main food.

  In the microwave heating bag (100), the upper film (11) and the lower film (12) are not fused except at the peripheral fused part (21). Therefore, the capacity of the main food container (A) can be increased. Thereby, even if the main food is large, it can be accommodated in the bag for microwave oven heating (100).

  Moreover, the upper surface film (11) is not fused with the other films (12, 13) at portions other than the peripheral fused portion (21). Therefore, a brand name, an advertisement, etc. can be printed on the entire surface of the top film (11), and the product appeal can be improved.

Here, the peripheral fusion part (21) and the side (22) are directly fused without using an easily peelable tape. Therefore, the fusion strength of the peripheral fusion part (21) and the fusion strength of the side (22) are the increase in internal pressure caused by the evaporation and expansion of water in the main food and seasoning liquid by heating in the microwave oven. It is strong enough to withstand external impacts. Therefore, there is very little possibility that the peripheral fusion part (21) (the fusion of the upper film (11) and the lower film (12)) will be peeled off during heating, transportation or storage, and the main food or It is possible to prevent the seasoning liquid from flowing out. Further, since the steam does not flow out from the peeled portion, the pressure in the microwave heating bag (100) can be kept high in order to perform pressure cooking.
Furthermore, since it is possible to prevent the fusion of the side (22) from being peeled off by an external impact, the fusion of the side (22) is peeled off during transportation or storage, and the main food and the seasoning liquid are mixed. Can also be prevented. Therefore, the main food and the seasoning liquid can be properly stored.

In addition, the tensile strength of the inner film (13) is smaller than that of the upper film (11) and the lower film (12). That is, the inner film (13) is easier to break than the upper film (11) and the lower film (12).
Therefore, when the water in the seasoning liquid evaporates and expands due to heating and the pressure inside the seasoning liquid storage part (12) rises, the inner film (13) breaks and opens as shown in FIGS. (23) is formed. Thereby, the seasoning liquid flows out from the seasoning liquid container (B) to the main food container (A), and the seasoning liquid is applied to the main food.

The upper film (11), the lower film (12), and the inner film (13) have a tensile strength of the upper film (11) and the lower film (13) by appropriately selecting materials and film thicknesses. What is necessary is just to design so that it may become smaller than the tensile strength of 12).
Specifically, it may be designed such that the difference between the tensile strength of the inner film (13) and the tensile strength of the upper film (11) and the lower film (12) is 61.4 N / 15 mm to 98.6 N / 15 mm. . For example, if a laminate of polyamide and unstretched polypropylene is used for the top film (11) and bottom film (12), the thickness is 75 μm, unstretched polypropylene is used for the inner film (13), and the thickness is 60 μm. The difference in tensile strength is 61.4 N / 15 mm to 98.6 N / 15 mm.
In addition, a cut or the like that does not penetrate the inner film (13) may be made so that the opening (23) is easily formed in the inner film (13).

In this embodiment, the peripheral part of the inner film (13) is fused to the lower film (12) so that the seasoning liquid container (B) is positioned below the main food container (A) ( (See FIG. 2).
Although FIG. 8 is a figure at the time of providing the seasoning liquid accommodating part (B) above the main food accommodating part (A) by fusing all the peripheral parts of the inner film (13) to the upper film (11). When the seasoning liquid storage part (B) is located above the main food storage part (A), the seasoning liquid (S) is stored in the seasoning liquid when the inner film (13) is broken near the side (22). A large amount remains in the part (B), and the seasoning liquid cannot be successfully applied to the main food. Therefore, it is better that the seasoning liquid container (B) is positioned below the main food container (A) as in this embodiment. However, in the present invention, as shown in FIG. 8, the seasoning liquid container (B) is made the main food container (A) by fusing the entire peripheral edge of the inner film (13) to the upper film (11). It is also included when it is provided on the upper side.

The pressure release mechanism (3) opens a part of the main food container (A) when the pressure in the main food container (A) rises and exceeds a predetermined value equal to or higher than the atmospheric pressure. By forming (32), the steam in the main food container (A) is released to the outside to reduce the pressure or keep it constant.
By providing the pressure release mechanism (3), the water in the main food and seasoning liquid evaporates and expands, and the pressure in the main food storage (A) rises to increase the main food storage (A). It is possible to prevent the main food and seasoning liquid from splashing outside.
In this embodiment, the pressure release mechanism (3) is formed by providing a pressure load part (31).
Hereinafter, the pressure release mechanism (3) of this embodiment will be described in detail (mainly refer to FIGS. 5 and 6).

The pressure load part (31) is formed by fusing part of the upper film (11) and the lower film (12) so as to have a predetermined shape (circular shape in the present embodiment).
Moreover, the fusion strength of the upper surface film (11) and the lower surface film (12) in the pressure load portion (31) is weaker than the fusion strength of the peripheral fusion portion (21). This difference in strength is not particularly limited, but preferably has a difference in strength of 50 N / 15 mm or less.
Furthermore, the fusion strength of the pressure load portion (31) is set to be stronger than the tensile strength of the top film (11).

  By having the pressure load part (31), the pressure in the main food container (A) is concentrated around the pressure load part (31), and the pressure around the pressure load part (31) is increased. Here, since the fusion strength of the pressure load portion (31) is set to be stronger than the tensile strength of the top film (11), when the pressure in the main food storage portion (A) reaches a predetermined pressure, the pressure load A pressure stronger than the tensile strength is applied to the upper film (11) around the part (31). Further, as shown in FIGS. 5 and 6, there is a difference in strength between the fusion strength of the pressure load portion (31) and the fusion strength of the peripheral fusion portion (21). The top film (11) is broken, and a pressure release hole (32) having substantially the same shape as the pressure load portion (31) is formed in the top film (11).

  Here, when the size of the pressure load portion (31) increases, the size of the formed pressure release hole (32) also increases. That is, by adjusting the size of the pressure load portion (31), the size of the formed pressure release hole (32) can be adjusted.

In this embodiment, only one pressure load portion (31) is formed, but two or more pressure load portions (31) may be formed.
Moreover, as a formation method of a pressure release mechanism (3), it is not limited to the method of providing a pressure load part (31), You may use another known technique. For example, as shown in FIG. 7 (a), an easily peelable tape (31a) is interposed in a part of the peripheral fusion part (21), and peeling is easier than other parts of the peripheral fusion part (21). As shown in FIG. 7B, a method of making a cut (31b) that does not penetrate the upper film (11) in a part of the upper surface of the upper film (11) can be given.
In the present embodiment, the pressure release mechanism (3) is provided. However, the present invention includes a configuration in which the pressure release mechanism (3) is not provided.

  Next, a process until the microwave heating bag (100) (food for microwave heating) containing the main food and seasoning liquid is heated in the microwave to eat the food for microwave heating will be described.

  FIG. 9 is a diagram showing a process of heating the microwave heating bag (100) (food for microwave heating) with a microwave oven.

First, the microwave heating bag (100) (food for microwave heating) containing the main food and seasoning liquid is heated in a microwave oven (see FIG. 9A).
As the heating proceeds, the moisture in the seasoning liquid evaporates and expands, and the seasoning liquid container (B) expands (see FIG. 9B). And the pressure in the seasoning liquid container (B) reaches a predetermined pressure. Thereby, an inner film (13) fractures | ruptures and an opening part (23) is formed in a seasoning liquid accommodating part (B) (refer FIG.9 (c)). And the seasoning liquid in a seasoning liquid accommodating part (B) flows out out of an opening part (23) to the main food accommodating part (A). And the leaked seasoning liquid will be applied to the main food.

  When heating is continued, the pressure in the main food container (A) reaches a predetermined pressure due to evaporation and expansion of water in the main food and seasoning liquid, thereby forming a pressure release hole (32). (See FIG. 9D). Thereby, the pressure in the main food container (A) can be released to the outside, and the pressure in the main food container (A) can be reduced or kept constant.

  After the heating, the microwave heating bag (100) is taken out of the microwave oven. At this time, the seasoning liquid has been applied to the main food. Therefore, it can be eaten immediately without the trouble of applying the seasoning liquid to the main food after heating.

In the microwave heating bag (100), the upper film (11), the lower film (12), and the inner film (13) are rectangular, but are not limited to a rectangular shape, and may have a circular shape or other polygonal shapes. Also good.
In the microwave heating bag (100), the inner film (13) is heat-sealed so that the three sides of the inner film (13) are integrated with the peripheral fusion part (21). If all are fused with the upper film (11) or the lower film (12), the mode of fusion is not particularly limited. However, as in the microwave heating bag (100), a part of the peripheral part of the inner film (13) is sandwiched between the upper film (11) and the lower film (12), and the peripheral fusion part (21). By heat-sealing so as to be integrated, the inner film (13) can be easily fused to the lower film (12).

The present invention also includes a microwave heating food in which the main food and seasoning liquid are contained in the microwave heating bag (100).
As the combination of the main food and seasoning liquid contained in the microwave heating bag (100), sukiyaki (main food: sukiyaki ingredients, seasoning liquid: under), boiled food (main food: ingredients (vegetables, fish, Meat etc.), seasoning liquid: boiled soup, pork ginger baked (main food: pork, seasoning liquid: sauce), Happo vegetables (main food: ingredients of Happo vegetables, seasoning liquid: sauce of Happo vegetables), etc. Can be mentioned.
In addition, the seasoning liquid may contain ingredients.

  The present invention can be suitably used for foods containing the main food and the seasoning liquid separately. For example, it can be suitably used for sukiyaki, boiled food, grilled pork ginger, Happo vegetables and the like.

It is a schematic plan view which shows the bag for microwave oven heating which concerns on embodiment of this invention. It is the alpha-alpha line schematic sectional drawing of FIG. It is a schematic plan view immediately after the inner film of the microwave oven heating bag which concerns on embodiment of this invention fractured | ruptured and the opening part (23) was formed. It is the alpha-alpha line schematic sectional drawing of FIG. In the microwave oven heating bag which concerns on embodiment of this invention, it is a schematic plan view immediately after a pressure release hole was formed. It is the alpha-alpha line schematic sectional drawing of FIG. It is a schematic plan view for demonstrating other embodiment of a pressure release mechanism. It is a figure at the time of providing a seasoning liquid accommodating part on the upper side of the main food accommodating part. It is the figure which showed the process of heating the bag for microwave ovens (food for microwave oven heating) with a microwave oven. It is a figure which shows the conventional bag for microwave oven heating.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Upper surface film 12 Lower surface film 13 Inner film 21 Peripheral fusion part 3 Pressure release mechanism 100 Microwave heating bag A Main food storage part B Seasoning liquid storage part

Claims (5)

A microwave oven heating bag having a main food containing part for containing a main food and a seasoning liquid containing part for containing a seasoning liquid for the main food,
It consists of an upper film and a lower film, and an inner film arranged between these upper and lower films,
The peripheral fusion part is formed by heat-sealing the peripheral part of the top film and the peripheral part of the bottom film,
All peripheral portions of the inner film are heat-sealed to either one of the upper and lower surface films,
The seasoning liquid container is an area surrounded by the inner film and any one of the films,
The main food container is an area other than the seasoning liquid container inside the bag,
A bag for heating a microwave oven, wherein the inner film has a lower tensile strength than the upper film and the lower film.   The microwave oven heating bag according to claim 1, wherein all the peripheral edge portions of the inner film are heat-sealed to the upper side of the lower film.   The part of the peripheral part of the said inner film is pinched | interposed into the upper surface film and the lower surface film, and it heat-seal | fuses so that it may unite with the said peripheral fusion part, The Claim 1 or 2 characterized by the above-mentioned. Microwave heating bag.   The main food container has a pressure release mechanism for releasing the internal pressure to the outside by opening a part thereof when the internal pressure rises and exceeds a predetermined value equal to or higher than the atmospheric pressure. The microwave heating bag according to any one of claims 1 to 3.   A food for heating a microwave, wherein the main food and seasoning liquid are contained in the microwave heating bag according to claim 1.

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