JP7437281B2 - Cold and thermal packaging - Google Patents

Description

The present disclosure relates to a cold/thermal insulating package in which a medium that changes state between liquid and solid is housed in a container, and the medium can be used as a cold insulating material or a heat insulating material.

BACKGROUND ART Conventionally, there have been known cold and thermal packages that can be used as cold insulation materials by freezing a medium (for example, see Patent Document 1).

JP2006-97984A (Paragraph [0021] etc.)

It is desired to make it easier to determine whether the medium is liquid or solid in conventional cold/thermal packages.

A first aspect of the invention made to solve the above-mentioned problems is provided with a container containing a medium that changes from transparent to opaque when the state changes from liquid to solid, and the medium is used as a cold insulating material or a heat insulating material. A cold/thermal insulating package in which it is possible to visually confirm whether or not it is in a usable state through the container, wherein the first and second opposing portions of the container are opposed to each other with the medium interposed therebetween. an opaque first shielding part provided in the first opposing part; a first transparent part provided in the second opposing part, which is opaque and the first transparent part provided in the second opposing part; On the other hand, when the medium becomes solid, it becomes difficult to see through the first transparent part, and the brightness of the color seen through the first transparent part and the liquid medium changes. , and a second shielding portion having a color brightness different from that of the solid medium that is visually recognized through the first transparent portion.

A second aspect of the invention is that the contrast between the second shielding part, which is visible through the first transparent part and the liquid medium, and the first shielding part is higher than the contrast between the second shielding part, which is visible through the first transparent part, and the first shielding part. The cold/thermal package according to the first aspect, wherein the contrast between the solid medium and the first shielding part is smaller.

A third aspect of the invention is the first aspect, wherein the color of the solid medium visually recognized through the first transparent part and the color of the first shielding part visually recognized from the outside of the container are white. It is a cold insulation thermal insulation package as described in a 2nd aspect.

A fourth aspect of the invention is the cold/thermal package according to any one of the first to third aspects, wherein the first transparent part and the liquid medium are colorless and transparent.

A fifth aspect of the invention is according to any one of the first to fourth aspects, wherein the color of the second shielding part that is visually recognized through the first transparent part and the liquid medium is a chromatic color. This is the cold/thermal package as described.

A sixth aspect of the invention is the method according to any one of the first to fifth aspects, wherein the color of the second shielding part that is visually recognized through the first transparent part and the liquid medium is a blue-based color. This is the cold/thermal package according to the embodiment.

In a seventh aspect of the invention, the first transparent part is spaced apart from an edge of the medium storage area and an edge of the storage area when viewed from the opposing direction of the first and second opposing parts. It is a cold insulation thermal insulation package as described in any one of the 1st aspect to the 6th aspect, which overlaps with the center part.

An eighth aspect of the invention is the cold/thermal package according to any one of the first to seventh aspects, wherein the first transparent part is distributed in the first opposing part.

In a ninth aspect of the invention, the first transparent part has a first pattern that is two-dimensionally repeated in a certain pattern formed on the first opposing part, and the second shielding part protects the medium. The cold/thermal package according to any one of the first to eighth aspects, the package being sandwiched and facing the entire first pattern.

A tenth aspect of the invention is that a first pattern in which the first shielding part and the first transparent part are alternately repeated two-dimensionally in a constant pattern is formed on the first opposing part, and A second pattern is formed on the second opposing part, in which the second shielding part and the second transparent part are two-dimensionally repeated alternately in the same constant pattern as the first pattern, and Any one of the first to eighth aspects, wherein the first transparent part and the second shielding part are arranged to face each other, and the first shielding part and the second transparent part are arranged to face each other. This is the cold/thermal package described in .

In an eleventh aspect of the invention, the container is a bag in which the edges of two folded or two-layered resin sheets are pasted together to form a storage area for the medium inside, and the first opposing portion The cold/heat insulated package according to any one of the first to tenth aspects, wherein the first transparent portions are distributed over the entire portion facing the storage area.

A twelfth aspect of the invention is that the container includes a transparent container body and a film covering the outside thereof, and the first shielding part and the second shielding part are printed on the film. It is a cold insulation thermal insulation package as described in any one of the 1st aspect to the 10th aspect.

In the cold insulation package of the first aspect of the invention, when the medium is in a transparent liquid state, the second shielding part is visible through the first transparent part and the medium, while when the medium is in an opaque solid state, the second shielding part is visible through the first transparent part and the medium. It becomes difficult to visually recognize the second shielding part through the part. As the transparency of the medium changes in this way, the brightness of the color inside the container that is visually recognized through the first transparent section changes. This makes it possible to change the contrast between the color inside the container visible through the first transparent part and the color of the first shielding part when the state of the medium changes. This makes it easier to determine whether the material is solid.

In the second aspect of the invention, the contrast decreases when the medium changes to a solid state. That is, when the medium becomes solid, the brightness of the color inside the container viewed through the first transparent part approaches the brightness of the color of the first shielding part. Since there is a standard in which the brightness of the color approaches, it is easier to understand that the medium has become solid compared to when the contrast increases (the difference in color brightness increases) due to a change in the state of the medium. becomes possible.

In the third aspect of the invention, when the medium changes into a solid, both the solid medium visible through the first transparent part and the first shielding part become white, making it easier to know that the medium has become solid. This makes it easier to understand.

As in the fourth aspect of the invention, the first transparent portion and the liquid medium may be colorless and transparent. In this case, the first shielding part and the second shielding part may have different colors when viewed from the outside on the first facing part side.

In the fifth aspect of the invention, the color of the first transparent part and the second shielding part that is visible through the medium is a chromatic color. Therefore, when the medium changes from liquid to solid and becomes white, in addition to changing the brightness of the color inside the container that is visible through the first transparent part, it is also possible to change the saturation of the color of the medium. The presence or absence of freezing can be more easily determined.

In the sixth aspect of the invention, the color of the first transparent portion and the second shielding portion that is visible through the medium is a blue-based color. Since the brightness of blue-based colors can be lowered compared to hues such as yellow, orange, and green, it is possible to easily create a contrast with white. This makes it easier to determine whether or not the medium is frozen.

In the seventh aspect of the invention, the first transparent portion overlaps the edge and center of the medium storage area. Therefore, it is possible to easily understand changes in the state of the medium contained in the container in the central part, which is difficult to melt (hard to freeze), and the edge part, which is easy to melt (easily frozen).

In the eighth aspect of the invention, since the first transparent portions are distributed in the first opposing portion, it is possible to easily determine whether or not there is freezing at a plurality of dispersed locations in the medium.

In the ninth aspect of the invention, since the first transparent portions are arranged in a two-dimensionally repeated manner in a certain pattern, it is possible to make it difficult for the range in which freezing of the medium can be confirmed to be biased. Furthermore, since the second facing part faces the entire first pattern formed by the first transparent parts, it is possible to widen the angular range in which the second facing part can be viewed through the first transparent part.

In the tenth aspect of the invention, the first opposing portion and the second opposing portion can be patterned in the same pattern, making it easy to form the pattern.

The container may be a bag made of a resin sheet (eleventh aspect of the invention) or a container having a printed film (twelfth aspect of the invention).

A perspective view of a cold/thermal package according to a first embodiment of the present disclosure Cross section of cold/thermal package (A) Top view of the cold/thermal package when the medium is liquid, (B) Bottom view of the cold/thermal package Top view of a cold/thermal package when the medium is solid (A) Top view when the medium is liquid, (B) Bottom view of the cold/thermal insulation package according to the second embodiment A plan view of the cold/thermal package according to the second embodiment when the medium is solid (A) Top view and (B) bottom view when the medium is liquid in the cold/thermal package according to the third embodiment A sectional view of a cold/thermal insulation package according to the third embodiment (A) Top view and (B) bottom view when the medium is solid in the cold/thermal package according to the third embodiment

[First embodiment]
As shown in FIGS. 1 and 2, the cold/thermal package 10 (hereinafter simply referred to as "package 10") of the present embodiment has a medium 30 housed in a container 20 that has a sealed area inside. Become. The medium 30 can change its state between a liquid and a solid depending on a temperature change outside the container 20. The medium 30 is used as a cold insulating material or a heat insulating material to maintain the temperature of objects around the package 10 within a certain range by utilizing the latent heat of state change. For example, the package 10 may be used after the medium 30 is cooled to a solid state, or may be used after the medium 30 is warmed to a liquid state.

The medium 30 is transparent when it is a liquid and becomes opaque when it cools and changes to a solid state. In the example of this embodiment, the medium 30 becomes white when it changes from a liquid to a solid. Note that the material of the medium 30 can be appropriately selected depending on the temperature at which the package 10 is used as a cold insulator or a heat insulator. For example, the medium 30 may be one containing paraffin as a main component.

The container 20 may be a bag or a container. In the example of this embodiment, the container 20 is a bag made of a resin sheet. Specifically, the container 20 is made by folding a rectangular resin sheet into two and pasting them together with their edges sealed on three sides to form a sealed area in which the medium 30 is sealed. Note that, for example, this resin sheet may be a laminated sheet in which a nylon sheet and a polyethylene sheet are laminated. When the medium 30 contains paraffin, providing a nylon sheet makes it easy to prevent paraffin from permeating.

As shown in FIG. 2, the container 20 is provided with first and second facing parts 21 and 22 that face each other with the medium 30 interposed therebetween. Specifically, the first and second facing portions 21 and 22 are each formed of a portion separated by a fold line in the above-mentioned resin sheet constituting the container 20.

The first facing portion 21 is provided with a first transparent portion 21T that is transparent and allows the medium 30 to be seen through, and a first opaque shielding portion 21S. As shown in FIG. 3(A), in this embodiment, a plurality of first transparent parts 21T are provided in the first opposing part 21 and arranged in a dispersed manner. These first transparent parts 21T form a first pattern that is two-dimensionally repeated in a constant pattern. In the example shown in the figure, the first transparent portion 21T is, for example, diamond-shaped, and the plurality of first transparent portions 21T are arranged in a staggered rhombic lattice shape with the same orientation. Moreover, the first transparent part 21T is located at the edge of the sealed area that accommodates the medium 30 and at the center away from the edge of the sealed area when viewed from the opposing direction of the first and second opposing parts 21 and 22. It is arranged so that it overlaps with the section. Note that the first transparent portion 21T may be formed so as to overlap the entire edge of the medium 30 in the opposing direction.

The first shielding part 21S consists of the entire portion of the first opposing part 21 excluding the first transparent part 21T. In addition, in the example of this embodiment, the seal part 29 of the container 20, which is sealed on three sides, does not include the first transparent part 21T and consists only of the first shielding part 21S. The portion 21T may be provided in the seal portion 29.

As shown in FIG. 3(B), the second opposing portion 22 is provided with an opaque second shielding portion 22S. In the example of this embodiment, the entire second opposing portion 22 serves as a second shielding portion 22S. Therefore, the second shielding part 22S overlaps all the first transparent parts 21T in the opposing direction of the first and second facing parts 21 and 22.

In this embodiment, since the first transparent section 21T is transparent, the medium 30 can be visually recognized through the first transparent section 21T. Further, when the medium 30 is a liquid, the medium 30 is also transparent, so the second shielding part 22S is also visible through the first transparent part 21T and the medium 30. On the other hand, when the medium 30 becomes solid, the medium 30 becomes opaque, making it difficult to visually recognize the second shielding part 22S through the first transparent part 21T.

Here, in the cold/thermal insulating package 10 of this embodiment, the color of the inside of the container 20 that is visually recognized through the first transparent part 21T can be changed by utilizing the fact that the medium 30 changes from transparent to opaque when frozen. I can do it. That is, the color of the second shielding part 22S that is visible through the first transparent part 21T and the liquid medium 30 is different from the color of the solid medium 30 that is visible through the first transparent part 21T.

Specifically, in the example of this embodiment, the second shielding part 22S is dark blue, and the liquid medium 30 and the first transparent part 21T are colorless and transparent. Therefore, when the medium 30 is a liquid, the color of the interior of the container 20 that is visible through the first transparent section 21T is dark blue, which is the same color as the second shielding section 22S. Moreover, the first shielding part 21S is white. Therefore, as shown in FIG. 3A, when the package 10 is viewed from the first opposing portion 21 side when the medium 30 is liquid, a dark blue color appears in the diamond-shaped portion where the first transparent portion 21T is arranged. The second shielding portion 22S is visible, and a first pattern in the form of a diamond lattice with a dark blue diamond pattern on a white background is formed. In this pattern, the contrast between the white color of the first shielding part 21S and the dark blue color of the second shielding part 22S visible through the first transparent part 21T is large, and the difference in color is clear.

On the other hand, as shown in FIG. 4, when the medium 30 freezes and becomes solid, the medium 30 turns white as described above, hiding the second shielding part 22S and making it difficult to see. In this state, when the package 10 is viewed from the first facing portion 21 side, it appears to be plain white. Note that it is preferable that the white color of the first shielding part 21S and the white color of the solid state medium 30 seen through the first transparent part 21T be exactly the same white color, but the present invention is not limited thereto.

In this way, the color of the interior of the container 20 that is visually recognized through the first transparent portion 21T changes from dark blue to white, making it easier to determine whether the medium 30 is a liquid or a solid. Furthermore, when the medium 30 becomes solid, the colors of the first shielding part 21S and the solid medium 30 become similar, making it difficult to see the rhombic lattice pattern that was visible when the medium 30 was in a liquid state. . This makes it easier to determine whether or not the medium 30 is frozen.

Furthermore, when the state of the medium 30 changes, the first shielding part 21S remains white and does not change, whereas the color of the interior of the container 20 that is visually recognized through the first transparent part 21T changes between dark blue and white. and change the brightness. That is, the contrast between the color of the first shielding part 21S and the color of the inside of the container 20 visually recognized through the first transparent part 21T changes. This makes it easier to determine whether the medium 30 is liquid or solid. In the example of this embodiment, when the medium 30 freezes, the medium 30 becomes white and its brightness increases, and the contrast decreases until it disappears or almost disappears. Therefore, it becomes easier to ascertain whether or not the medium 30 is frozen.

Note that contrast in the present disclosure means a ratio of color brightness. Changes in brightness and contrast can be confirmed numerically by taking images of the package 10 before and after freezing the medium 30 and analyzing the brightness of the images using image analysis software, etc. This can be easily confirmed by displaying or printing in gray scale and comparing whether or not the medium 30 is frozen.

In addition, when the first shielding part 21S and the second shielding part 22S are colored, the outer surface or inner surface of each of the opposing parts 21 and 22 may be colored by printing. Alternatively, each of the opposing parts 21 and 22 may be constructed by laminating a colored film on a transparent film. In this case, a colored film may be partially or entirely laminated on the outer or inner surface of the transparent film.

As described above, in the cold/thermal insulating package 10 of this embodiment, when the medium 30 is in a transparent liquid state, the second shielding part 22S is visible through the first transparent part 21T and the medium 30, while the medium 30 is opaque. When in a solid state, it becomes difficult to visually recognize the second shielding part 22S through the first transparent part 21T. As the transparency of the medium 30 changes in this way, the brightness of the color inside the container 20 that is visually recognized through the first transparent section 21T changes. Thereby, when the state of the medium 30 changes, it is possible to change the contrast between the color inside the container 20 visually recognized through the first transparent part 21T and the color of the first shielding part 21S, and the medium 30 changes. It can be made easier to understand whether it is liquid or solid.

Furthermore, in this embodiment, when the medium 30 changes to a solid state, the contrast becomes smaller. That is, when the medium 30 becomes solid, the brightness of the color inside the container 20 viewed through the first transparent part 21T approaches the brightness of the color of the first shielding part 21S. Since there is a standard for the brightness of the colors to approach in this way, it is easier to understand that the medium 30 has become solid than when the contrast increases (the difference in color brightness increases) due to a change in the state of the medium 30. It becomes possible to make it easier. Moreover, when the medium 30 changes to a solid state, both the solid state medium 30 visible through the first transparent section 21T and the first shielding section 21S turn white, so that it is easy to tell that the medium 30 has become a solid state. This makes it easier to understand.

Moreover, in this embodiment, the color of the second shielding part 22S that is visible through the first transparent part 21T and the medium 30 is a chromatic color. Therefore, when the medium 30 changes from liquid to solid and becomes white, the color inside the container 20 that is visually recognized through the first transparent part 21T changes not only the brightness of the color but also the saturation. This makes it easier to determine whether or not the medium 30 is frozen.

Further, the color of the second shielding part 22S, which is visible through the first transparent part 21T and the medium 30, is a blue-based color. Since the brightness of blue-based colors can be lowered compared to hues such as yellow, orange, and green, it is possible to easily create a contrast with white. This makes it easier to determine whether or not the medium is frozen. Note that blue-based colors include, for example, blue, navy blue (dark blue, etc.), and the like. Note that the color of the second shielding portion 22S may be a chromatic color other than blue, or may be an achromatic color other than white.

In this embodiment, the first transparent portion 21T overlaps the edge and center of the storage area for the medium 30 when viewed from the direction in which the first and second facing portions 21 and 22 face each other. Therefore, it is possible to easily understand changes in the state of the medium in the central part, which is difficult to melt (hard to freeze), and the edge part, which is easy to melt (easily frozen), of the medium 30 accommodated in the container 20. can. Furthermore, since the first transparent portions 21T are distributed in the first opposing portion 21, it is possible to easily determine whether or not the medium 30 is frozen at a plurality of dispersed locations. Further, the first transparent parts 21T are arranged in a two-dimensionally repeated manner in a fixed pattern, and the second opposing part faces the entire first pattern made up of these first transparent parts, so that the medium The range in which the presence or absence of freezing of 30 can be confirmed is less likely to be biased.

In addition, in the package 10 of this embodiment, since the first facing part 21 is provided with the opaque first shielding part 21S, air bubbles are generated in the medium 30 compared to a case where the entire first facing part 21 is transparent. Even if dirt, dust, etc. get mixed in, it is possible to make them less noticeable.

[Second embodiment]
FIG. 5(A) and FIG. 5(B) show a cold/thermal insulation package 10V of the second embodiment. In this embodiment, the color of the first shielding part 21S is different from that in the first embodiment. Specifically, the first shielding part 21S has the same color as the second shielding part 22S, for example, dark blue. As in the first embodiment, the medium 30 is colorless and transparent in a liquid state, and white and opaque in a solid state. Further, the first transparent portion 21T is also colorless and transparent. As shown in FIG. 5(A), in this embodiment, when the medium 30 is in a liquid state, when the cold/thermal insulating package 10V is viewed from the first opposing portion 21 side, it appears to be a plain color (for example, a dark blue plain color).

Here, as shown in FIG. 6, when the state of the medium 30 changes from liquid to solid, the medium 30 becomes opaque white, and the color of the inside of the container 20, which is visually recognized through the first transparent part 21T, becomes white. Become. As a result, when viewed from the first opposing portion 21 side, the inner portions of the plurality of first transparent portions 21T are white, and the rhombic lattice is inverted in color from the example of FIG. 3(A) of the first embodiment. A pattern of shapes is visible. According to this embodiment as well, it is possible to easily determine whether the medium 30 is frozen.

[Third embodiment]
FIG. 7(A) and FIG. 7(B) show a cold/thermal insulating package 10W of a third embodiment. In the present embodiment, the first opposing part 21 is formed with a first pattern in which the first transparent part 21T and the second shielding part 22S are alternately repeated two-dimensionally in a constant pattern. The second opposing portion 22 is provided with a second transparent portion 22T that is transparent and allows the medium 30 to be seen through. A second symbol is formed on the second opposing portion, which is two-dimensionally repeated alternately in the same constant pattern as the first symbol of the first opposing portion 21.

As shown in FIG. 8, the first transparent part 21T of the first symbol faces the second shielding part 22S of the second symbol. Moreover, the first shielding part 21S of the first pattern faces the second transparent part 22T of the second pattern. By doing so, while arranging the transparent parts 21T, 22T and the shielding parts 21S, 22S in the same pattern in the first and second facing parts 21, 22, the medium 30 can be passed through the inner surfaces of the shielding parts 21S, 22S. can be viewed from the outside.

Here, in this embodiment, the medium 30 is colorless and transparent as in the first embodiment, but the colors of the first and second shielding parts 21S and 22S differ between the outside and inside of the container 20. It's different. For example, the color (outside color) when the first and second shielding parts 21S and 22S are viewed from the outside of the container 20 is white. On the other hand, the color (inside color) when the first and second shielding parts 21S and 22S are viewed from inside the container 20 is, for example, dark blue. Therefore, as shown in FIGS. 7(A) and 7(B), when the medium 30 is a liquid, the first pattern and the second pattern are, for example, two-dimensionally repeating diamonds of two different colors. It has a checkered pattern.

As shown in FIGS. 9(A) and 9(B), when the medium 30 is frozen, the medium 30 becomes opaque white, making it difficult to see the inner surfaces of the first and second shielding parts 21S and 22S. At this time, the package 10W appears to be plain white when viewed from either side of the first and second facing portions 21 and 22. The package 10W of this embodiment also makes it easy to determine whether or not the medium 30 is frozen.

In this embodiment, for example, the container 20 is a bag, and a pair of resin sheets constituting the first and second opposing parts 21 and 22 are stacked two on top of each other, and the edges thereof are sealed on all sides. has been formed. Such a container 20 can be constructed by using a resin sheet in which a transparent part and an opaque shielding part are printed with the same constant pattern as the first pattern, so that both the first and second opposing parts 21 and 22 can be used. It can also be formed. Therefore, compared to the case where resin sheets for the first and second opposing parts 21 and 22 are prepared separately, it is possible to form the container 20 more easily.

[Other embodiments]
(1) In the above embodiment, the container 20 is a bag, but it may be a container such as a blow-molded product. When using a medium containing paraffin as the medium 30, it is preferable to provide the container 20 with a nylon resin layer. For example, the container 20 may have a single layer structure of nylon resin, or may have a multilayer structure including a nylon resin layer. Further, when the container 20 is a container, for example, the container 20 has a structure in which the outside of the transparent container body is covered with a film, and the film is covered with opaque shielding parts (first shielding part 21S, second shielding part 22S). etc.) may be printed.

(2) In the above embodiment, when the medium 30 is in a liquid state, it is colorless and transparent, but it may be colored and transparent. Further, the first transparent portion 21T may be colored and transparent.

(3) The shape of the first transparent portion 21T is not limited to a diamond shape, and may be, for example, circular, polygonal, star-shaped, or have a symbol It may also be the shape of a character. For example, when the medium 30 changes to a liquid, the second shielding part 22S may be configured to make characters (for example, a character string indicating that it is a liquid) visible through the first transparent part 21T. Furthermore, when a plurality of first transparent parts 21T are provided, the shapes of the first transparent parts 21T may be different from each other, and the sizes of the first transparent parts 21T may be different from each other. Further, the arrangement pattern of the transparent portion and the opaque shielding portion of the container 20 may be, for example, a checkered pattern, a gingham check, or the like. Further, in the first embodiment described above, the arrangement of the first transparent part 21T and the first shielding part 21S may be reversed, and the first shielding part 21S may be arranged in a dispersed manner.

(4) In the second embodiment (see FIG. 5(A)), the liquid medium 30 is colored so that the color of the second shielding part 22S that is visually recognized through the first transparent part 21T and the liquid medium 30 is changed. , it may be made to have substantially the same color as the first shielding part 21S. As this medium 30, one that becomes white or bluish-white and increases in brightness when frozen is used. In this way, the color of the second shielding part 22S, which is visually recognized through the first transparent part 21T and the liquid medium 30, is made almost the same color as the first shielding part 21S, as in FIG. 5(A). It becomes possible to do so. When the medium 30 is frozen, the solid medium 30 appears whitish through the first transparent portion 21T, as in FIG. 6, and the same effect as in the second embodiment can be achieved.

(5) In the above embodiment, the inner surface of the second shielding portion 22S is plain, but a pattern may be formed thereon. For example, such patterns include various checkered patterns, striped patterns, and the like.

Note that although specific examples of technologies included in the scope of the claims are disclosed in this specification and drawings, the technologies described in the claims are not limited to these specific examples. This includes various modifications and changes to the example, as well as cases in which a part of the specific example is taken out alone.

10 Cold/thermal insulation package 20 Container 21 First opposing part 21T First transparent part 21S First shielding part 22 Second opposing part 22S Second shielding part 30 Medium

Claims (6)

A cold/thermal insulating package containing a medium that changes from transparent to opaque when the state changes from liquid to solid in a container,
an opaque first shielding part provided in the first opposing part of the first and second opposing parts of the container that face each other with the medium interposed therebetween;
a first transparent part provided in the first opposing part and transparent;
Provided in the second opposing part, is opaque and is visible through the first transparent part and the liquid medium, but becomes difficult to see through the first transparent part when the medium becomes solid. , a second shielding part in which the brightness of the color visually recognized through the first transparent part and the liquid medium is different from the brightness of the color of the solid medium visually recognized through the first transparent part ,
The first transparent portion overlaps an edge of the medium storage area and a center portion of the storage area that is remote from the edge when viewed from the opposing direction of the first and second opposing portions. , cold insulation package. A cold/thermal insulating package containing a medium that changes from transparent to opaque when the state changes from liquid to solid in a container,
an opaque first shielding part provided in the first opposing part of the first and second opposing parts of the container that face each other with the medium interposed therebetween;
a first transparent part provided in the first opposing part and transparent;
Provided in the second opposing part, is opaque and is visible through the first transparent part and the liquid medium, but becomes difficult to see through the first transparent part when the medium becomes solid. , a second shielding part in which the brightness of the color visually recognized through the first transparent part and the liquid medium is different from the brightness of the color of the solid medium visually recognized through the first transparent part,
A cold/thermal insulating package, wherein the first transparent part is dispersedly arranged in the first opposing part. A cold/thermal insulating package containing a medium that changes from transparent to opaque when the state changes from liquid to solid in a container,
an opaque first shielding part provided in the first opposing part of the first and second opposing parts of the container that face each other with the medium interposed therebetween;
a first transparent part provided in the first opposing part and transparent;
Provided in the second opposing part, is opaque and is visible through the first transparent part and the liquid medium, but becomes difficult to see through the first transparent part when the medium becomes solid. , a second shielding part in which the brightness of the color visually recognized through the first transparent part and the liquid medium is different from the brightness of the color of the solid medium visually recognized through the first transparent part,
The first transparent part has a first pattern that is two-dimensionally repeated in a certain pattern formed on the first opposing part, and the second shield part is configured to cover the first pattern with the medium in between. A cold/thermal insulating package facing the whole. A cold/thermal insulating package containing a medium that changes from transparent to opaque when the state changes from liquid to solid in a container,
an opaque first shielding part provided in the first opposing part of the first and second opposing parts of the container that face each other with the medium interposed therebetween;
a first transparent part provided in the first opposing part and transparent;
Provided in the second opposing part, is opaque and is visible through the first transparent part and the liquid medium, but becomes difficult to see through the first transparent part when the medium becomes solid. , a second shielding part in which the brightness of the color visually recognized through the first transparent part and the liquid medium is different from the brightness of the color of the solid medium visually recognized through the first transparent part,
A first pattern in which the first shielding part and the first transparent part are alternately repeated two-dimensionally in a certain pattern is formed on the first opposing part, and
A second symbol is formed on the second opposing portion, in which the second shielding portion and the transparent second transparent portion are alternately repeated two-dimensionally in the same constant pattern as the first symbol;
A cold/heat insulation package, wherein the first transparent part and the second shielding part are arranged to face each other, and the first shielding part and the second transparent part are arranged to face each other. A cold/thermal insulating package containing a medium that changes from transparent to opaque when the state changes from liquid to solid in a container,
an opaque first shielding part provided in the first opposing part of the first and second opposing parts of the container that face each other with the medium interposed therebetween;
a first transparent part provided in the first opposing part and transparent;
Provided in the second opposing part, is opaque and is visible through the first transparent part and the liquid medium, but becomes difficult to see through the first transparent part when the medium becomes solid. , a second shielding part in which the brightness of the color visually recognized through the first transparent part and the liquid medium is different from the brightness of the color of the solid medium visually recognized through the first transparent part,
The storage body is a bag in which the edges of two folded or two-layered resin sheets are pasted together to form a storage area for the medium inside,
A cold/thermal insulating package, wherein the first transparent part is distributed over the entire portion of the first opposing part that faces the storage area. The container includes a transparent container body and a film covering the outside thereof,
The cold/thermal insulating package according to any one of claims 1 to 4, wherein the first shielding part and the second shielding part are printed on the film.

Images