JP4896082B2 - Heating container for microwave oven - Google Patents

Description

  The present invention relates to a heating container for a microwave oven.

  In recent years, microwave ovens have the advantage that they can be cooked in a short time and can be easily cooked in small amounts. In recent years, such as heating of cold dishes and thawing and heating of frozen foods It is widely used not only for cooking but also for cooking rice, boiled dishes, steamed dishes, and fried foods.

As a container used when cooking food using a microwave oven, in addition to dishes such as dishes and small bowls, for example, a heating container for a microwave oven described in Patent Document 1 is known. The heating container for microwave ovens described in Patent Document 1 is a rice cooker using a microwave oven made of ceramic or porcelain.
JP-A-10-165298

  When food is put in a general heating container and heated in a microwave oven, microwaves are irradiated and the food is heated, but there is a problem of temperature unevenness that the upper part becomes higher in temperature than the lower part. May occur.

  Due to such temperature unevenness, if there is an insufficiently heated part, it may cause food poisoning. Further, if the microwave irradiation time is lengthened in order to eliminate such an insufficiently heated portion, a portion that is excessively heated and loses moisture and becomes hard or scorched is generated.

  Moreover, for example, when cooking with a microwave oven using the heating container for microwave oven of patent document 1, the temperature rise of the to-be-cooked object (water and rice) put in the container is quick, so cook rice with an electric kettle etc. Compared with the case where it went, rice can be cooked in a short time. However, when rice is cooked in a microwave oven using the heating container of Patent Document 1, the time until the water boils is too short, so the water absorption of the rice is insufficient, and the core remains in the cooked rice. May cause problems.

  The present invention has been completed based on the above circumstances, and provides a heating container for a microwave oven that can be heated uniformly without temperature unevenness, and that can produce a delicious dish with a moderate increase in temperature. For the purpose.

In order to solve the above-mentioned problems, the present invention is a heating container comprising a bottomed container body having one end opened and a lid for closing the opening of the container body, the container being made of ceramics, In part, a microwave reflection part that reflects microwaves is provided so that a part or all of the microwave reflection part is above a half of the height of the heating container, and the microwave reflection part The part is a microwave reflection layer provided by baking a microwave reflection film having a pattern pattern by transfer printing on the base material of the heating container, and a ceramic layer containing silver and covering the microwave reflection layer provided, provided the microwave reflective portion in the container main body, the microwave reflective portion lower than the region provided with the container main body, a region including the lower end portion of the container body, the microwave reflective portion That are provided with no region is microwave heating container according to claim.
In the present invention, the half-height position of the heating container means a half-height position of the heating container in a state where the opening of the container body is closed with a lid.

  According to the present invention, since a part or all of the microwave reflecting portion is provided above the half of the height of the heating container, the upper part of the container that tends to increase in temperature (the container In the upper half of the height), the microwave is reflected to suppress the temperature rise, and the temperature difference between the lower part of the container (lower than the half of the container height) is small. Become. As a result, according to the present invention, it is possible to provide a heating container for a microwave oven that can be heated uniformly without temperature unevenness.

  In addition, when cooking is performed by putting the food to be cooked in the heating container of the present invention, the microwave is reflected by the microwave reflecting part formed in a part of the heating container, and the cooking container does not include the microwave reflecting part. The temperature rise of the object to be cooked is more gradual than when cooking using. Therefore, according to this invention, it can prevent that a malfunction arises due to the temperature rise of a to-be-cooked object being too quick, and can make a delicious dish.

  Furthermore, according to the present invention, since the container body and the lid for closing the opening of the container body are provided, the food to be cooked is prevented from being dried and appropriate pressure is applied, so that a delicious dish can be made and the wrap Since no film is required, waste can be reduced.

In the present invention, the microwave reflecting portion is a microwave reflecting layer provided by baking a microwave reflecting film that is transferred and printed into a pattern pattern on the base material of the heating container.
With such a configuration, the microwave reflection film formed by transferring and printing the pattern pattern can be easily provided by attaching and baking the microwave reflection film at a desired position of the heating container, and It is preferable because design properties can be imparted to the heating container.

  In the above configuration, when a ceramic layer covering the microwave reflection layer is provided in the heating container, the microwave reflection layer is not exposed, so that the occurrence of sparks can be prevented and the microwave reflection layer can be removed by washing or the like. It is preferable because it can prevent damage or falling off and can increase the strength of the container itself.

In the present invention, the microwave reflection part contains silver.
  A microwave reflecting material containing silver is preferable because it has a high degree of adhesion to the container and is easily baked.

The present invention may have the following configuration.
You may provide the said microwave reflection part in the said container main body and the said lid | cover.
Such a configuration is preferable because it is possible to more effectively suppress the temperature rise in the upper portion of the container that tends to increase in temperature.

You may provide the said microwave reflection part also in the area | region and / or the bottom part of the said heating container which become below the position of the half of the height of the said heating container.
With such a configuration, the microwave reflected on the area below the half of the height of the heating container reflects the microwave applied to the area, and the microwave reflecting part on the bottom of the heating container Since the microwave irradiated from the bottom part of a container is reflected by this, the temperature rise of a to-be-cooked object can be made more moderate.
Therefore, the above configuration is preferable when it is desired to more moderately increase the temperature of the object to be cooked.

  According to the present invention, it is possible to provide a heating container for a microwave oven that can eliminate temperature unevenness and can be heated uniformly, and can moderately increase the temperature and make delicious dishes.

<Embodiment 1>
A first embodiment in which the present invention is applied to a rice cooking container 10 for microwave oven (hereinafter referred to as a rice cooking container 10) will be described with reference to FIGS. 1 is a perspective view of the rice cooking container 10 of the present embodiment as viewed from above, FIG. 2 is a perspective view of the rice cooking container 10 as viewed from below, FIG. 3 is a side view of the rice cooking container 10, and FIG. It is sectional drawing.

As shown in FIG. 1, the rice cooking container 10 of the present embodiment includes a ceramic container body 11, a ceramic inner lid 20, and a ceramic outer lid 25.
The container body 11 has a bottomed cylindrical shape with an open upper end, and a step 13 with a narrowed inner diameter is provided at a position slightly lower than the upper end. An inner lid 20 and an outer lid 25 are placed on the step 13. It is like that. As shown in FIG. 2, the bottom outer wall 14 of the container main body 11 is provided with an annular leg portion 15 protruding outward in a position closer to the center than the peripheral edge.

  The inner lid 20 has a disk shape as a whole, and includes a knob 21 in the center of the upper surface, and two pressure adjusting holes 22 for pressure adjustment on the outer edge side of the knob 21. The diameter of the inner lid 20 is smaller than the inner diameter of the upper end portion of the container body 11 and is set to a size that can be placed on the step 13.

The outer lid 25 has a dome shape as a whole, and includes a knob 26 at the center of the upper surface, and two pressure adjusting holes 27 for pressure adjustment on the outer edge side of the knob 26.
The outer lid 25 can be placed on the step 13 of the container body 11 to close the opening of the container body 11, and can completely cover the inner lid 20 with the inner lid 20 placed on the step 13 of the container body 11. It is configured to be able to. That is, the diameter of the outer lid 25 is set to be smaller than the inner diameter of the upper end of the container body 11 and larger than the diameter of the inner lid 20, and when the outer lid 25 is overlapped with the inner lid 20, the knob 21 of the inner lid 20. The center is swelled so that it does not hit.

  Now, a pattern pattern (polka dot pattern) is drawn on a part of the rice cooking container 10 of the present embodiment (see FIGS. 1 to 3), and the regions 12A, 14A, and 23 where this polka dot pattern is drawn. Is provided with a microwave reflecting portion 16 for reflecting microwaves.

  In the present embodiment, specifically, the microwave reflecting portion 16 is surrounded by the leg portion 15 of the region 12A under the step 13 in the outer wall 12 of the container body 11 and the bottom outer wall 14 of the container body 11. Of the upper surface of the circular area 14 </ b> A and the inner lid 20, a donut-shaped area 23 excluding the knob 21 and the base portion 21 </ b> A of the knob 21 is formed.

In this embodiment, 12 A of area | regions where the microwave reflection part 16 of the outer side wall 12 of the container main body 11 is provided have the upper end rather than the position X of the half of the height of the rice cooking container 10 as shown in FIG. It is an upper side, and the lower end is below the position X which is half the height of the rice cooking container 10.
That is, a part of the microwave reflection portion 16 of the outer wall 12 of the container body 11 is provided above the position X that is half the height of the rice cooking container 10, and the position X that is half the height of the rice cooking container 10. It is also provided in the following places.
In this embodiment, the position X that is half the height of the rice cooking container 10 means a position that is half the height of the rice cooking container 10 with the opening of the container body 11 closed by the inner lid 20 and the outer lid 25. To do.
Therefore, since the microwave reflection part 16 provided in the inner lid 20 is disposed at the level difference 13 of the container body 11 when the inner lid 20 is set on the container body 11, the height of the rice cooking container 10 is increased. It is located above the half position X.

In this embodiment, the microwave reflection part 16 is formed by the following method, for example.
First, a plate having a pattern pattern (polka dot pattern in this embodiment) is made. When this plate is used to print a paste-like microwave reflecting material on a paper substrate for transfer paper, a polka-dot shaped microwave reflecting film is obtained.
Next, a paste-like ceramic material is printed on the microwave reflection film to form a ceramic film, and then a topcoat material is printed on the ceramic film to form a topcoat layer. Paper is obtained.

Next, after the transfer paper is soaked in water and the paper substrate is peeled and removed, it is attached to the predetermined regions 12A and 14A of the container body 11 and the predetermined region 23 of the inner lid 20, and is baked at 800 to 900 ° C. As shown in FIG. 4, the top coat layer disappears, and the microwave reflection layer 16 </ b> A and the ceramic layer 16 </ b> B are laminated in this order on the surface of the ceramic substrate 17.
In the present embodiment, the microwave reflecting layer 16A is formed on the outer part of the polka dot circle (the part drawn by shading in FIGS. 1 to 3), but the microwave reflecting layer is formed on the inner part of the circle. 16A is not formed.

In the present invention, as the microwave reflecting material for forming the microwave reflecting layer 16A, a paste made of silver, copper, aluminum, stainless steel, or the like can be used. Silver is preferable because it is high and baking is easy.
As a ceramic material for forming the ceramic layer 16B, for example, a paste-like material obtained by mixing about 55% glass powder, about 5% pigment, about 40% medium, etc. with respect to the total mass of the ceramic material. Can be used.
As a material for the top coat for forming the top coat layer (not shown), a material usually used for producing transfer paper for ceramics, for example, an acrylic material can be used.

Next, the operation of this embodiment will be described.
For example, water and rice are put into the container main body 11 of the rice cooking container 10 of the present embodiment, and the inner lid 20 and the outer lid 25 are placed in order on the step 13 of the container main body 11 and put into the microwave oven. When operating, the rice cooking container 10 is irradiated with microwaves. In the rice cooking container 10 of the present embodiment, the irradiated microwave is reflected by the microwave reflection layer 16A and passes through a portion where the microwave reflection layer 16A is not formed.

  Specifically, in the present embodiment, microwaves from the upper side of the rice cooking container 10 (including those directly irradiated from the microwave oven and those irradiated from the upper side reflecting the wall surface of the microwave oven, the same applies hereinafter). Is transmitted through the outer lid 25, but a part thereof is reflected by the microwave reflecting layer 16 </ b> A formed in the donut-shaped region 23 on the upper surface of the inner lid 20.

  And a part of the microwaves (including those directly irradiated from the microwave oven and those irradiated from the side surface of the container 10 by reflecting the wall surface of the microwave oven) from the side surface of the rice cooking container 10 are partially Reflected by the microwave reflection layer 16 </ b> A formed in the region 12 </ b> A of the outer wall 12 of the container body 11, but passes through the band-shaped region 12 </ b> C including the lower end portion of the container body 11 in the outer wall 12 of the container body 11. .

  And a part of the microwaves (including those directly irradiated from the microwave oven and those irradiated from the bottom surface side of the container 10 reflecting the wall surface of the microwave oven) from the bottom surface of the rice cooking container 10 are partially Reflected by the microwave reflection layer 16 </ b> A formed in the circular region 14 </ b> A of the bottom outer wall 14 of the container body 11.

  Water and rice put in the container body 11 are heated by the microwave transmitted through the rice cooking container 10, and the temperature rises gently. In this embodiment, the microwave permeation from the strip-shaped region 12C including the lower end portion of the container body 11 raises the temperature of the lower portion of the container body 11, and convection of the rice cooking water occurs from the bottom to the top. . The rice in the container body 11 is heated while absorbing water, and after a predetermined time, rice cooking is completed.

Next, the effect of this embodiment will be described.
According to the present embodiment, the microwave reflection unit 16 is provided on the outer wall 12 and the inner lid 20 of the container body 11 so as to be above the position X that is half the height of the rice cooking container 10. The temperature rise in the upper part of is suppressed.
As a result, according to the present invention, the temperature difference between the upper part and the lower part of the rice cooker 10 can be reduced, uniform heating can be performed without temperature unevenness, and heating without the microwave reflecting part 16 The temperature rise of the food to be cooked (rice and water) can be moderated as compared with the case of cooking using the container.

  In particular, according to the present embodiment, the microwave reflecting portion 16 is not only on the outer wall 12 of the container body 11 above the position X that is half the height of the rice cooking container 10 but also the height of the rice cooking container 10. The temperature of the water and the rice put in the container body 11 rises more gradually because it is also provided at a position below the half position X and also on the bottom outer wall 14 of the container body 11. . As a result, according to this embodiment, even during the rice cooking process in the microwave oven, the rice sufficiently absorbs water, so that delicious rice with no core can be cooked.

  Moreover, in this embodiment, since the microwave reflection part 16 is not provided in the strip | belt-shaped area | region 12C containing the lower end part of the container main body 11 among the outer side walls 12 of the container main body 11, in the lower part of the rice cooking container 10, it is temperature. Rises. Since convection occurs due to an increase in the temperature of the lower portion of the rice cooking container 10, uniform heat transfer is possible, and uneven rice can be cooked. Furthermore, by providing the microwave reflection part 16 on the inner lid 20, it is possible to prevent dew on the lower surface of the inner lid 20 and to prevent stickiness of the rice. Moreover, since the container main body 11, the inner lid | cover 20, and the outer lid | cover 25 of this embodiment are the products made from ceramics, heat retention is high.

  Moreover, according to this embodiment, the microwave reflection part 16 can be easily provided by sticking and baking the microwave reflection film on which the pattern pattern is transferred and printed at a desired position of the rice cooking container 10. And the designability can be provided to the rice cooking container 10.

  Furthermore, according to the present embodiment, since the ceramic layer 16B covering the microwave reflection layer 16A is provided, the microwave reflection layer 16A is not exposed, so that it is possible to prevent the occurrence of sparks and damage or drop off due to cleaning or the like. Can be prevented, and the strength of the container itself can be increased.

  In addition, according to this embodiment, since it has two lids of the inner lid 20 and the outer lid 25, an appropriate pressure is applied during cooking, and delicious rice can be cooked. Moreover, since a wrap film etc. are unnecessary at the time of cooking, waste can be reduced.

<Embodiment 2>
Next, a second embodiment of the present invention will be described with reference to FIGS.
The present embodiment is an example in which the present invention is applied to a cooking container 30 for microwave oven (hereinafter referred to as a cooking container 30) for producing tea fumigation or pudding. 5 is a perspective view of the cooking container 30 of the present embodiment as viewed from above, FIG. 6 is a perspective view of the cooking container 30 of the present embodiment as viewed from below, and FIG. 7 is a side view of the cooking container 30. In addition, about the structure similar to 1st Embodiment, the same code | symbol is attached | subjected and description is abbreviate | omitted.

As shown in FIG. 5, the cooking container 30 of the present embodiment includes a ceramic container body 31 and a ceramic lid 40.
The container main body 31 has a bottomed cylindrical shape with an open upper end, and a lid receiving portion 33 on which the lid 40 is disposed is formed on the upper end so as to protrude in the outer circumferential direction. A pattern pattern (polka dot pattern) is drawn in a band-like region 32 </ b> A immediately below the lid receiving portion 33 in the outer wall 32 of the container body 31.
As shown in FIG. 6, the bottom outer wall 34 of the container body 31 has a shape in which the center is recessed from the periphery, and a polka dot pattern is drawn in the recessed region 34A.

The lid 40 has a disk shape as a whole, and is placed on the upper end of the container body 31 to close the opening of the container body 31. On the lower surface of the lid 40, an annular protrusion 41 is formed in a portion closer to the center than the peripheral portion placed on the lid receiving portion 33 of the container body 31, and when the lid 40 is placed on the upper end of the container body 31, An annular protrusion 41 is fitted into the inner wall 35 of the container body 31.
The upper surface of the lid 40 has a shape in which the central portion is recessed rather than the peripheral edge, and two cutout portions 42 are formed on the peripheral edge. A polka dot pattern is drawn in a region 43 that is recessed from the periphery of the upper surface of the lid 40.

  Now, in the cooking container 30 of the present embodiment, the regions 32A, 34A, and 43 where the polka dot pattern is drawn are the microwave reflecting portions 16. The microwave reflection part 16 of this embodiment is formed by the same method as the microwave reflection part 16 of Embodiment 1, and the structure is also the same.

In this embodiment, as shown in FIG. 7, the band-shaped region 32 </ b> A in which the microwave reflection portion 16 of the outer wall 32 of the container body 31 is provided has a position Y that is half the height of the cooking container 30. The lower end is below the position Y that is half the height of the cooking container 30.
That is, a part of the microwave reflecting portion 16 of the outer wall 32 of the container body 31 is provided above a position Y that is half the height of the cooking container 30, and a position Y that is half the height of the cooking container 30. It is also provided in the following places.
In the present embodiment, the half-height position Y of the cooking container 30 is a half-height position of the cooking container 30 in a state where the opening of the container body 31 is closed by the lid 4 as shown in FIG. means.
Therefore, when the lid 40 is set on the container body 31, the microwave reflecting portion 16 provided on the lid 40 is disposed above the position Y that is half the height of the cooking container 30. It is located above the position Y that is half the height of.

Next, the operation of this embodiment will be described.
When the lid 40 is fitted into the container main body 31 containing the food to be cooked and placed in the microwave oven, and the microwave oven is operated, the microwave is irradiated to the cooking container 30. In the rice cooking container 30 of the present embodiment, the irradiated microwave is reflected by the microwave reflection layer 16A and passes through a portion where the microwave reflection layer 16A is not formed.

  Specifically, in the present embodiment, microwaves from the upper side of the cooking container 30 (including those directly irradiated from the microwave oven and those irradiated from the upper side reflecting the wall surface of the microwave oven) A part of the light is reflected by the microwave reflection layer 16 </ b> A formed on the upper surface of the lid 40.

  And a part of microwaves (including those directly irradiated from the microwave oven and those irradiated from the side surface of the cooking vessel 30 reflecting the wall surface of the microwave oven) from the side surface of the cooking vessel 30 Is reflected by the microwave reflection layer 16 </ b> A formed on the outer wall 32 of the container body 31, but passes through the band-shaped region 32 </ b> B including the lower end portion of the container body 31 in the outer wall 32 of the container body 31.

And a part of microwaves (including those directly irradiated from the microwave oven and those irradiated from the bottom surface side of the cooking vessel 30 reflecting the wall surface of the microwave oven) from the bottom surface of the cooking vessel 30 Is reflected by the microwave reflection layer 16 </ b> A formed on the bottom outer wall 34 of the container body 31.
The object to be cooked is heated by the microwave transmitted through the cooking container 30 and its temperature rises gently. In the present embodiment, due to the transmission of microwaves from the band-like region 32B including the lower end of the container body 31, the temperature of the lower part of the container body 31 rises, causing convection from the bottom to the top, for a predetermined time. After passing through, cooking is completed.

Next, the effect of this embodiment will be described.
In the present embodiment, the microwave reflection unit 16 is provided on the upper surface of the lid 40 and the outer wall 32 of the container body 31 so as to be above the position Y that is half the height of the cooking container 30. The temperature rise in the upper part of is suppressed. As a result, according to the present embodiment, the temperature difference between the upper portion and the lower portion of the cooking container 30 can be reduced, temperature unevenness can be eliminated, and heating can be performed uniformly, and the microwave reflecting portion 16 is not provided. The temperature rise of the object to be cooked can be made slower than when cooking using a heating container.

In particular, according to the present embodiment, the microwave reflecting portion 16 is not only on the outer wall 32 of the container body 31 above the position Y that is half the height of the cooking container 30 but also the height of the cooking container 30. The temperature of the food to be cooked in the container body 31 rises gradually because it is also provided at a position below the half position Y and also on the bottom outer wall 34 of the container body 31.
If you cook a dish that hardens eggs such as tea fumigation and pudding in a microwave oven using a general heating container, the temperature of the liquid containing the egg rises quickly, and it quickly reaches 100 ° C or more, and soot enters. Although there was a problem, if the cooking container 30 of the present embodiment is used, a delicious dish can be made without any waste.

  Moreover, according to this embodiment, since the microwave reflection part 16 is not provided in the strip | belt-shaped area | region 32B containing the lower end part of the container main body 31 among the outer side walls 32 of the container main body 31, the lower part of the cooking container 30 is provided. Then the temperature rises. Since convection occurs due to an increase in the temperature of the lower portion of the cooking container 30, uniform heat transfer is possible.

In addition, according to the present embodiment, as in the first embodiment, the microwave reflection layer 16A is not exposed, so that it is possible to prevent the occurrence of sparks and to prevent damage or falling off due to cleaning or the like. And the intensity | strength of container itself can be raised.
Furthermore, according to the present embodiment, similarly to the first embodiment, the microwave reflecting portion 16 can be easily provided, and design characteristics can be imparted to the cooking container 30.

  In addition, according to the present embodiment, since the lid 40 is provided, an appropriate pressure is applied during cooking and the food to be cooked can be prevented from drying, and as a result, a delicious dish can be made. Moreover, since no wrap film or the like is required, it is possible to reduce garbage.

<Embodiment 3>
Next, Embodiment 3 of the present invention will be described with reference to FIGS.
The present embodiment is an example in which the present invention is applied to a liquor container 50 used when making sake. FIG. 8 is a perspective view of the sake bottle 50 of the present embodiment as viewed from above, and FIG. 9 is a side view of the sake cup 50. In addition, about the structure similar to 1st Embodiment, the same code | symbol is attached | subjected and description is abbreviate | omitted.
As shown in FIG. 8, the liquor 50 according to the present embodiment includes a ceramic bottle 51 (corresponding to a container body) and a ceramic pot 60 that can also be used as a lid that closes the opening of the bottle 51. .
As shown in FIG. 8, the bottle 51 has a constricted shape that is slightly lowered from the upper opening, and a polka dot pattern is drawn in a band-like region 52 </ b> A below the constricted portion.
A thread bottom 63 is formed on the bottom outer wall 62 (upper side in FIG. 8) of the shed 60, and a polka dot pattern is drawn on the area 62A surrounded by the thread bottom 63 in the bottom outer wall 62 and on the outer wall 61. It is.

Now, in the liquor 50 of this embodiment, the areas 52 </ b> A and 62 </ b> A where the polka dot pattern is drawn are the microwave reflection parts 16. The microwave reflecting portion 16 is also drawn in a polka dot pattern on the outer wall 61 of the shed 60.
The microwave reflection part 16 of this embodiment is formed by the same method as the microwave reflection part 16 of Embodiment 1, and the structure is also the same.

In this embodiment, as shown in FIG. 9, the band-shaped region 52 </ b> A in which the microwave reflecting portion 16 of the outer wall 52 of the bottle 51 is formed has a top end thereof from a position P that is half the height of the liquor 50. Is the upper side, and the lower end is below the position P which is half the height of the sake cup 50. That is, a part of the microwave reflection portion 16 of the outer wall 52 of the bottle 51 is provided above the position P that is half the height of the sake cup 50, and is equal to or less than the position P that is half the height of the sake cup 50. It is also provided in the place.
In the present embodiment, the position P that is half the height of the liquor 50 means the position that is half the height of the liquor 50 in a state where the opening of the bottle 51 is closed at the shed 60, as shown in FIG. To do.
Therefore, the microwave reflecting portion 16 provided in the region 62A of the bottom outer wall 62 and the outer wall 61 of the shed 60 is more than the position P that is half the height of the liquor 50 when the shed 60 is set to the bottle 51. Since it is arranged on the upper side, it is located above the position P that is half the height of the liquor 50.

Next, the operation of this embodiment will be described.
When liquor is put into the bottle 51, the lid 60 is put on the lid 60, put into the microwave oven, and the microwave oven is operated, the microwave is irradiated to the bottle 51 and the bottle 60. In the bottle of liquor 51 of the present embodiment, the irradiated microwave is reflected by the microwave reflection layer 16A and passes through a portion where the microwave reflection layer 16A is not formed.

Specifically, in the present embodiment, microwaves from the upper side of the liquor 50 (including those directly irradiated from the microwave oven and those irradiated from the upper side reflecting the wall surface of the microwave oven, the same applies hereinafter). Is reflected by the microwave reflecting layer 16 </ b> A formed in the region 62 </ b> A surrounded by the thread tail 63 of the bottom outer wall 62 of the shed 60.
And a part of the microwaves (including those directly irradiated from the microwave oven and those irradiated from the side surface of the alcoholic beverage reflecting the wall surface of the microwave oven) from the side surface of the alcoholic beverage device 50 are partially The microwave reflection layer 16A formed on the outer wall 52 of the bottle 51 and the microwave reflection layer 16A formed on the outer wall 61 of the shed 60 are reflected. In the region 52B including the lower end of the bottle 51, the microwave is transmitted.
By the microwaves that have passed through the sake container 50, the sake contained in the bottle 51 is heated and its temperature rises gently. In the present embodiment, the temperature of the lower portion of the bottle 51 increases due to the transmission of the microwave from the region 52B including the lower end of the bottle 51, and convection occurs from the bottom to the top, after a predetermined time has elapsed. A sake is obtained.

Next, the effect of this embodiment will be described.
According to the present embodiment, the microwave reflection layer 16 is located on the bottom outer wall 62 and the outer wall 61 of the shed 60 and the outer wall 52 of the bottle 51 so as to be above the position P that is half the height of the liquor 50. Therefore, the temperature rise in the upper part of the liquor 50 is suppressed. As a result, according to the present embodiment, the temperature difference between the upper part and the lower part of the liquor 50 can be reduced, so that uniform heating can be achieved without temperature unevenness and the temperature rise is moderated. Can be.
Moreover, according to this embodiment, since the microwave reflection part 16 is not provided in the area | region 52B containing the lower end part of the bottle 51 among the outer walls 52 of the bottle 51, temperature is lower in the lower part of the sake cup 50. To rise. Since convection occurs due to an increase in the temperature of the lower portion of the liquor 50, uniform heat transfer is possible.

In addition, according to the present embodiment, as in the first embodiment, the microwave reflection layer 16A is not exposed, so that it is possible to prevent the occurrence of sparks and to prevent damage or falling off due to cleaning or the like. And the intensity | strength of container itself can be raised.
Furthermore, according to the present embodiment, similarly to the first embodiment, the microwave reflecting portion 16 can be easily provided, and design characteristics can be imparted to the liquor 50.

  In addition, according to the present embodiment, since the jar 60 that also serves as a lid is provided, an appropriate pressure is applied during cooking, and evaporation of liquor is prevented. As a result, delicious sake can be made.

[Example]
Hereinafter, the present invention will be further described by examples.
<Example 1>
By the following method, microwave reflection is applied to a predetermined region of a ceramic cooking container (the height of the container is about 8 cm, the inner diameter is about 8 cm at the upper end, and the maximum capacity is about 250 ml) which is the same shape as the cooking container 30 shown in the second embodiment. Part 16 was formed.
(1) Preparation of transfer paper A polka dot-shaped plate with a circular hole having a diameter of about 2.5 mm is made and transferred using this plate and silver paste # 300 [manufactured by Nippon Gold Liquid Co., Ltd.]. A microwave reflection film was formed by screen printing on a paper substrate for paper.
Next, the ceramic material was made into a paste and printed on the microwave reflection film to form a ceramic film. Here, as the ceramic material, 55% glass powder, 5% pigment, and 40% medium were used with respect to the total mass of the material, and these were mixed and kneaded with three rollers to form a paste. .
Next, an acrylic material (manufactured by Mitsubishi Rayon Co., Ltd .; YR 5062RT) was printed on the ceramic coating to form a topcoat layer, thereby producing a transfer paper.

(2) Formation of the microwave reflection portion 16 After the transfer paper prepared in (1) is soaked in water and the paper base material is peeled and removed, the entire area of the outer wall 32 of the container body 31 excluding the lid receiving portion 33 ( The region 32A and the region 32B) in FIG. 5 and the recessed region 34A of the bottom outer wall 34 of the container body 31 are bonded to each other and baked at 800 to 900 ° C., and the microwave reflecting portion 16 is formed. A cooking container 30 was produced. The microwave reflecting portion 16 of the present embodiment has a configuration in which a microwave reflecting layer 16A and a ceramic layer 16B are laminated in this order on a ceramic base material 17. The inner part of the polka dot circle has a structure in which a ceramic layer 16B is laminated on a ceramic substrate 17.
<Example 2>
The transfer paper prepared in (1) of Example 1 was transferred from the outer wall 32 of the container body 31 to the entire area (the area 32A and the area 32B in FIG. A cooking container 30 of Example 2 was produced in the same manner as in Example 1 except that transfer paper was attached to the recessed area 43 and baked.
<Example 3>
The transfer paper produced in (1) of Example 1 is formed by denting the band-like region 32A of the outer wall 32 of the container body 31, the region 43 recessed from the periphery of the upper surface of the lid 40, and the bottom outer wall 34 of the container body 31. A cooking container 30 of Example 3 was produced in the same manner as in Example 1 except that transfer paper was attached to the region 34A and baked.
<Comparative Example 1>
The transfer paper produced in (1) of Example 1 was carried out except that the transfer paper was attached to the entire surface of the outer wall 32 and the bottom outer wall 34 of the container main body 31 and the surface disposed outside the lid 40 and baked. A cooking container of Comparative Example 1 was produced in the same manner as Example 1.
<Comparative example 2>
A ceramic cooking container having the same shape as that of the second embodiment in which the microwave reflecting portion 16 is not formed was used as the cooking container of Comparative Example 2.
<Test Example 1>
The following test was done using the cooking container of Examples 1-3 produced by the said method, and the cooking container of Comparative Examples 1-2.

(1) Heat test 1
180 ml of water is put into each of the cooking containers of Examples 1 to 3 and Comparative Examples 1 to 2, and heated with electric power of 700 W using a microwave oven [manufactured by Matsushita Electric Corporation, NE-S7V7]. The water temperature at 3.5 cm from the upper end was measured every minute. Heating with a microwave oven was performed until the water temperature at 3.5 cm from the upper end reached 100 ° C., and the time required to reach 100 ° C. was also measured. The results are shown in Table 1.
In Table 1, the numerical value described for each example or comparative example is the water temperature (° C.).

As is apparent from Table 1, the cooking container provided with the microwave reflecting portion 16 (Examples 1 to 3 and Comparative Example 2) is more than the cooking container of Comparative Example 1 where the microwave reflecting portion 16 is not provided. The temperature of the water rose slowly and it took a long time to boil. From this, it was found that the temperature rise of the object to be cooked can be moderated in the cooking container provided with the microwave reflecting portion 16.
Moreover, when the cooking container of Example 1 and the cooking container of Example 2 in which the microwave reflection part 16 is provided in the same area | region of the outer side wall 32 of the container main body 31 is compared, the microwave reflection part 16 is provided in the lid | cover 40. The temperature increase of the cooking container of Example 2 provided was slower than that of the cooking container of Example 1 in which the microwave reflecting portion 16 was provided on the bottom outer wall 34 of the container body 31.

(2) Heat test 2
180 ml of water is put in each of the cooking container of Example 2, the cooking container of Example 3, and the cooking container of Comparative Example 1, and power is 700 W using a microwave oven (manufactured by Matsushita Electric Co., Ltd., NE-S7V7). The water temperature at 2 cm (upper part) from the upper end and the water temperature at 1 cm (lower part) from the lower end were measured every minute. Heating with a microwave oven was performed until both the upper water temperature and the lower water temperature reached 100 ° C. The results are shown in Table 2.
In Table 2, the numerical value in the column described as “upper” is the water temperature at 2 cm from the upper end of the container, and the numerical value in the column described as “lower” is the water temperature at 1 cm from the lower end of the container. is there. In the “maximum temperature difference” column, the difference between the upper water temperature and the lower water temperature is calculated for each heating time, and the one with the maximum absolute value of the temperature difference is described.

As is apparent from Table 2, in the cooking container (Example 2 and Example 3) in which the microwave reflection part is formed, the difference between the water temperature at the upper part of the container and the water temperature at the lower part is 5 ° C. at the maximum. Compared with the cooking container of the comparative example 1 in which the reflection part 16 is not formed, it was quite small.
From this result, it was found that the temperature unevenness can be eliminated according to the present invention.
Moreover, in the cooking container of Example 2 and the cooking container of Comparative Example 1, the water temperature of the upper part of the container was higher than the water temperature of the lower part, but in the cooking container of Example 3, the water temperature of the lower part was higher than the water temperature of the upper part. There was a tendency to become. This is considered to be caused by the fact that the microwave reflecting portion 16 is not provided in the band-shaped region 32B including the lower end portion of the container body 31 in the outer wall 32 of the container body 31 of the cooking container of Example 3.

<Example 4>
The rice cooking container of Embodiment 1 was produced and used as the rice cooking container of Example 4 (container height of about 12 cm, upper end inner diameter of about 15 cm, maximum capacity of about 750 ml). The microwave reflecting portion 16 was formed by the same method as (1) and (2) in Example 1.

<Test Example 2>
The rice cooking container of Example 4 and the same shape as the rice cooking container of Embodiment 1, but using the rice cooking container that does not have the microwave reflector 16 (referred to as the rice cooking container of Comparative Example 3), are as follows. A test was conducted.

(1) Heating test Each of the rice cooking container of Example 4 and the rice cooking container of Comparative Example 3 is charged with 500 ml of water and heated with a power of 700 W using a microwave oven [manufactured by Matsushita Electric Corporation, NE-S7V7]. Then, the water temperature at 6 cm (upper) from the upper end and the water temperature at 2 cm (lower) from the lower end were measured every minute. Heating with a microwave oven was performed until the upper water temperature and the lower water temperature reached 100 ° C. Also, the difference between the upper water temperature and the lower water temperature for each heating time was calculated. The results are shown in Table 3.
In Table 3, the numerical value in the column described as “upper” is the water temperature at 5 cm from the upper end of the container, and the numerical value in the column described as “lower” is the water temperature at 2 cm from the lower end of the container. is there.

  From the results of Table 3, the water temperature gradually increased in the rice cooking container of Example 4 and the time to boiling was longer than in the rice cooking container of Comparative Example 3. Moreover, in the rice cooking container of Example 4, the difference of the water temperature of an upper part and a lower part is smaller than the rice cooking container of the comparative example 3, and the time when the upper part water temperature becomes 100 degreeC and the time when the lower part water temperature becomes 100 degreeC The difference was less than 1 minute.

  As mentioned above, according to the rice cooking container of this invention, it turned out that a temperature nonuniformity is eliminated and it can heat uniformly. Moreover, according to the rice cooking container of this invention, it turned out that temperature rise can be made moderate and time to boiling can be lengthened.

(2) Rice Cooking Test Each of the rice cooking container of Example 4 and the rice cooking container of Comparative Example 3 was mixed with 1 rice and 240 ml of water and allowed to absorb water for 30 minutes, and then a microwave oven [Matsushita Electric Co., Ltd., NE -S7V7] was heated for 15 minutes at a power of 500 W and then left to steam for 10 minutes. The cooked rice was visually observed and sampled.

  The rice cooked using the rice cooking container of Example 4 had no core and was cooked evenly, and the taste was good. On the other hand, the rice cooked using the rice cooking container of Comparative Example 3 has a hard and yellow portion in the middle of the upper part, and the lower part is messy, and the rice cooked in the rice cooking container of Example 4 The taste was inferior to that.

  In the rice cooking container of Example 4, the microwave reflecting portion 16 is provided in a portion where the temperature tends to be high, and the microwave reflecting portion 16 is provided at a predetermined position of the container. In addition, the temperature rise was moderated, and it was thought that the rice was fully absorbed during the cooking process, and delicious rice was cooked.

On the other hand, in the rice cooking container of Comparative Example 3, since the temperature rises quickly at the upper part, when heated for the same time as the rice cooking container of Example 4, it was considered that an excessively heated state was produced, and a hard and yellow part was produced.
As mentioned above, according to the rice cooking container of this invention, while eliminating temperature nonuniformity, while heating uniformly, it turned out that a temperature rise is moderated and can cook delicious rice.

<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.
(1) The area | region which provides a microwave reflection part is not limited to what was shown to the said embodiment, For example, you may provide a microwave reflection part only above the position of the half of the height of a heating container.

(2) In the above-described embodiment, the ceramic layer covering the microwave reflective layer is provided. However, the example provided with only the microwave reflective layer is given as a reference example.

  (3) In the said embodiment, although the heating container provided with the ceramic lid | cover was shown, you may provide the metal lid | cover which reflects a microwave.

  (4) In the above embodiment, a polka-dot shaped microwave reflecting portion is provided. However, the microwave reflecting portion may be a pattern pattern such as a lattice pattern or a floral pattern.

  (5) In the said embodiment, although the example which applied this invention to the rice cooking container, the cooking container, and the liquor was shown, the use of the heating container of this invention is not limited to these. For example, the present invention may be applied to a heating container for boiling noodles such as pasta.

It is the perspective view which looked at the rice cooking container of Embodiment 1 from the upper part. It is the perspective view which looked at the container main body of the rice cooking container of Embodiment 1 from the downward direction. It is a side view of the rice cooking container of Embodiment 1. It is a fragmentary sectional view of the rice cooking container of Embodiment 1. It is the perspective view which looked at the cooking container of Embodiment 2 from upper direction. It is the perspective view which looked at the container main body of the cooking container of Embodiment 2 from the downward direction. It is a side view of the cooking container of Embodiment 2. It is the perspective view which looked at the sake container of Embodiment 3 from upper direction. It is a side view of the sake container of Embodiment 3.

Explanation of symbols

10 ... Rice cooking container (heating container of the present invention)
DESCRIPTION OF SYMBOLS 11 ... Container main body 12 ... Outer wall 14 ... Bottom outer wall 16 ... Microwave reflection part 17 ... Base material 20 ... Inner lid (lid)
25 ... outer lid X ... half the height of the rice cooker

Claims (3)

A heating container comprising a bottomed container body having one end opened and a lid that closes the opening of the container body, and is made of ceramic.
A part of the heating container is provided with a microwave reflecting part that reflects microwaves, such that a part or all of the microwave reflecting part is above the half of the height of the heating container,
The microwave reflection portion is a microwave reflection layer provided by baking a microwave reflection film transferred and printed into a pattern pattern on the base material of the heating container, and includes silver.
Providing a ceramic layer covering the microwave reflective layer ;
The microwave reflection portion is provided in the container body, and the region including the lower end portion of the container body below the region where the microwave reflection portion of the container body is provided is provided with the microwave reflection portion. A heating container for a microwave oven, characterized in that it is not a region . The heating container for a microwave oven according to claim 1, wherein the microwave reflection portion is provided on the container main body and the lid. The said microwave reflection part was provided also in the area | region and / or the bottom part of the said heating container which are below the position of the half of the height of the said heating container, The Claim 1 or Claim 2 characterized by the above-mentioned. Heating container for microwave oven.

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