JP2000254014A - Insulating container and method for fabricating the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an insulating container which can be easily fabricated at low cost and provide a method for fabricating the same. SOLUTION: In the method for fabricating an insulating container wherein a radiation preventing film 10 is stuck on the outer surface of an inner container 2 which is put into an outer container, by leaving a space 4 therebetween, and the containers 2, 3 are joined to each other by means of mouth parts 2c, 3c, a positioning mark 9 is provided on the outer surface of the container 2, and when the film 10 is stuck on the outer surface of the container 2, an end of the film 10 is aligned with the mark 9 and the film 10 is wrapped around the container 2, while the other end thereof is stuck on the outer surface of the container 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat insulating container for accommodating beverages and the like and a method for producing the same.

[0002]

2. Description of the Related Art Conventionally, a heat insulating container having a double-wall structure in which an inner container is housed in an outer container with a gap therebetween and integrally formed has been used. As this kind of heat insulating container, for example, JP-A-Hei 1
There is one described in JP-A-201646. FIG.
1 shows a heat insulating container described in the publication. The heat insulating container shown here is composed of a container body 31 having a double wall structure made of a synthetic resin, and a body space layer 32 between inner and outer walls of the container body 31. It is provided with a partition member F for partitioning inside and outside. As an example of the partition member F, a member in which a radiation preventing layer is formed on the outer surface of a cylindrical synthetic resin core material by sticking, thermal transfer, or the like. To manufacture this heat insulating container, for example, an adhesive is applied to the entire surface of the aluminum foil to form a sticking sheet, the outer surface of the core is covered with this sheet, and heat is applied to the sheet so that the adhesive is melted to apply the sheet and the core. Depending on the method of bonding,
After producing the partition member F having the radiation prevention layer formed on the core material, a method of arranging this in the space layer 32 is adopted.

[0003]

However, when manufacturing the above-described heat-insulating container, there is a problem that a great deal of labor and cost are required for manufacturing a partition member, and it is easy to manufacture the heat-insulating container at low cost. There was a need for a way to do it. The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an insulated container that can be manufactured easily and at low cost, and a method for manufacturing the same.

[0004]

According to the method for manufacturing a heat insulating container of the present invention, an anti-radiation film is attached to the outer surface of an inner container, and the inner container is accommodated in the outer container with a gap therebetween. And a method for manufacturing a heat insulating container in which the outer container and the outer container are joined to each other at the mouth portion, using an anti-radiation film positioning mark on the outer surface of the inner container, and attaching the anti-radiation film to the outer surface of the inner container. After positioning one end of the film according to the positioning mark,
The film is wound around an inner container. Further, in the method for manufacturing a heat insulating container of the present invention, an anti-radiation film is attached to the outer surface of the inner container, and the inner container is accommodated in the outer container with a gap therebetween. In the method for manufacturing a heat insulating container to be joined to each other, a film formed so as to have a non-reflection symmetric shape may be used as the radiation prevention film. When attaching the radiation prevention film to the outer surface of the inner container, it is preferable to determine the attachment position of the film so that a gap is formed between the film and the outer surface of the inner container. Further, in the heat insulating container of the present invention, the inner container is accommodated in the outer container with a gap therebetween, and these inner container and the outer container are joined to each other at the mouth portion, and a radiation prevention film is attached to the outer surface of the inner container. The inner container has an anti-radiation film positioning mark on the outer surface, and the anti-radiation film is positioned with respect to the inner container with one end aligned with the positioning mark.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A feature of the method for manufacturing a heat insulating container of the present invention is that an anti-radiation film is attached to the outer surface of an inner container, and the inner container is housed in the outer container with a gap therebetween. And the outer container are joined to each other at the mouth portion, and when producing a double-walled container having an anti-radiation film attached to the inner surface of the inner container, use an anti-radiation film having a positioning mark on the outer surface of the inner container. In attaching the film to the outer surface of the inner container, one end of the film is positioned in accordance with the positioning mark, and then the film is wound around the inner container. By using the one having the positioning mark on the outer surface of the inner container, the position of the film with respect to the inner container can be easily and accurately determined. Therefore, the manufacturing operation can be facilitated, the production efficiency can be increased, and the manufacturing cost can be reduced.

In the method for manufacturing a heat-insulating container according to the present invention, an anti-radiation film is attached to the outer surface of the inner container, and the inner container is accommodated in the outer container with a gap therebetween. Are bonded to each other at the mouth, and when producing a double-walled container having an anti-radiation film attached to the outer surface of the inner container, a radiation-prevention film that is formed to have a non-reflective symmetric shape is used. There may be. By using a non-reflective symmetric film as the anti-radiation film, if the film is mistakenly installed with its back side facing out, it can be immediately confirmed. Accordingly, it is possible to prevent an accident in which the film is erroneously installed with the back side facing outside during manufacturing, to improve the manufacturing yield, and to further reduce the manufacturing cost.

When the film is attached to the inner container, the attaching position can be determined so that a gap is formed between the film and the outer surface of the inner container. Thereby, even when the inner container is thermally expanded by the high-temperature content liquid and the outer diameter is increased, it is possible to prevent a tensile force from being applied to the film and to prevent the film from breaking or peeling from the inner container.

Further, the heat insulating container of the present invention is a heat insulating container in which an inner container is accommodated in an outer container with a gap therebetween, and the inner container and the outer container are joined to each other at a mouth portion. An anti-radiation film is attached to the outer surface of the container, the inner container has an anti-radiation film positioning mark on the outer surface, and the anti-radiation film is positioned relative to the inner container with one end aligned with the positioning mark. It is. According to the heat insulating container, as described above, the manufacturing operation can be facilitated, the production efficiency can be increased, and the manufacturing cost can be reduced.

[0009]

1 to 3 show one embodiment of a heat insulating container according to the present invention. The heat insulating container 1 shown in FIG.
Is integrally formed in the outer container 3 with the gap 4 interposed therebetween, a shoulder member 6 attached to the open end of the double-walled container 5, and an opening of the double-walled container 5. It is provided with a plug 7 for closing the part.

The inner container 2 is formed in a bottomed cylindrical shape having a disc-shaped bottom plate portion 2a and a tube portion 2b extending upward from the peripheral edge of the bottom plate portion 2a. A flange portion 2c, which is a mouth portion protruding toward the side, is formed.

On the outer surface of the cylindrical portion 2b, a radiation prevention film positioning mark 9 (hereinafter simply referred to as a positioning mark 9 or a mark 9) extending from the upper portion of the cylindrical portion 2b to the vicinity of the bottom plate portion 2a along the cylindrical portion axial direction. ) Is provided. The mark 9 is used to determine the position of the anti-radiation film with respect to the inner container 2 at the time of sticking the film to the inner container 2 and to facilitate the sticking operation.
It may be a ridge having a trapezoidal cross section of about 2 mm and a height of about 0.5 to 2 mm. Further, a ridge having a semicircular cross section with a diameter of about 0.5 to 3 mm may be used.

An anti-radiation film 10 is attached to the outer surface of the cylindrical portion 2b over a height range from the upper portion of the cylindrical portion 2b to the vicinity of the bottom plate 2a. Anti-radiation film 10
Is for reducing heat transfer loss due to radiant heat transfer when the content liquid is contained in the double-walled container 5. For example, a film-shaped base resin to which metal fine particles are attached by vapor deposition or sputtering. Can be used. As the metal fine particles, antimony-doped tin oxide (ATO), tin-doped indium oxide (ITO) and the like are preferable because of high infrared reflectance. For example, the film 10 has a visible light transmittance of 45 to 80% and an infrared reflectance of 75 to 90%.
% Can be used. A commercially available product suitably used for the film 10 is a heat mirror film (manufactured by Mitsui Chemicals, Inc.).

The radiation prevention film 10 is formed in a substantially rectangular shape, and its height is set so as to reach from the upper portion of the cylindrical portion 2b to the vicinity of the bottom plate portion 2a, and the length is slightly longer than the circumferential length of the cylindrical portion 2b. It is set as follows. Film 10 and tube 2
It is preferable to provide a gap of, for example, 0.1 to 3.0 mm between the outer surface b.

An identification mark 10c, which is an L-shaped notch, is formed at the upper end of one end 10a of the radiation prevention film 10. The discrimination mark 10c is for discriminating whether or not the front side of the film 10 is facing out. By providing this discrimination mark 10c, the film 10 is non-mirror symmetric, that is, The shape is formed so that the shape is different between a state in which the front side faces outward and a state in which the rear side faces outward. The film 10 is wound around the cylinder 2b with one end 10a and the other end 10b fixed along the mark 9 to the cylinder 2b with the adhesive tape 11. As the adhesive tape 11, a material that is colorless and has excellent heat resistance, for example, a polyester material can be suitably used.

The outer container 3 is formed in a bottomed cylindrical shape having a disc-shaped bottom plate portion 3a and a tube portion 3b extending upward from the periphery of the bottom plate portion 3a. A flange portion 3c, which is a mouth portion protruding toward the side, is formed. A circular concave portion 3d is formed substantially at the center of the lower surface of the bottom plate portion 3a of the outer container 3 toward the gap side, and a ventilation hole 3e is formed in the concave portion 3d. The ventilation holes 3e are formed by bonding the bottom plate 3a with an adhesive such as a cyanoacrylate adhesive.
Is closed by a sealing plate 12 adhered to the sealing member. As the sealing plate 12, a member made of polycarbonate can be used.

As the material of the inner container 2 and the outer container 3, synthetic resin, glass and the like can be used.
O _2, N _2, with respect to ^{_{CO 2 1g / m 2 / 24hr}} / atm
It is preferable to use a synthetic resin having the following gas permeability. When the gas permeability exceeds the above-mentioned value, gas permeation from the surfaces of the inner container 2 and the outer container 3 occurs during long-term use, and the heat insulation property is likely to be reduced. It is preferable to use transparent materials for the inner container 2 and the outer container 3 because the contents can be visually recognized from the outside. Specifically, it is preferable to use a synthetic resin such as a polyethylene naphthalate resin, a polyacrylonitrile resin, and a methyl methacrylate resin.

The flange 2c of the inner container 2 and the flange 3c of the outer container 3 are joined over the entire circumference by a joining method such as vibration welding. The gap 4 between the inner container 2 (cylinder 2b) and the outer container 3 (cylinder 3b) is 1 to 8 m.
m is desirable. Further, it is more preferable that the thickness is 3 to 8 mm.

A low thermal conductivity gas having a thermal conductivity smaller than the thermal conductivity of air (κ = 2.41 × 10 ⁻² W · m ⁻¹ · K ⁻¹ ; 0 ° C.), for example, in the void portion 4, for example, Xenon (κ = 0.52
× 10 ⁻² W · m ⁻¹ · K ⁻¹ ; 0 ° C.), argon (κ = 1.
63 × 10 ^-2 W · m ⁻¹ · K ⁻¹ ; 0 ° C.), krypton (κ
= 0.87 × 10 ⁻² W · m ⁻¹ · K ⁻¹ ; 0 ° C.), or a mixed gas thereof.

The shoulder member 6 includes an upper part 13 and a lower part 14 formed so as to be connected to each other. The upper part 13 includes an upper part main body 15 and a handle 16 attached to the main body 15. The upper part main body 15 has an annular portion 18 having an opening 17 and a cylindrical plug attaching portion 19 hanging down from a peripheral portion of the opening 17. The annular portion 18 is provided with a spout 20 for pouring the content liquid in the inner container 2. A groove-shaped engaging recess 21 along the circumferential direction is provided on the outer periphery of the annular portion 18.
Is provided. The engaging recess 21 is formed on the outer periphery of the annular portion 18 over substantially the entire periphery except for the vicinity of the handle 16. A screw portion 19 a is formed on the inner peripheral surface of the plug attaching portion 19. In addition, a welding portion 24 to be welded to a welding portion 23 of the lower part 14, which will be described later, is provided near the base end of the handle of the annular portion 18.

The lower part 14 is formed in an annular shape, and the inner diameter of the opening 14a is set to be larger than the outer diameter of the uppermost part of the cylindrical portion 3b of the outer container 3 and smaller than the outer diameter of the flange 3c. The engagement recess 2 provided in the annular portion 18 of the upper part 13 is provided at the uppermost portion on the inner periphery of the lower part 14.
1 is provided with an engagement convex portion 22 that fits inside. The engagement convex portion 22 is formed so as to protrude inward from the inner periphery of the lower part 14, and is provided substantially over the entire periphery except for the vicinity of the handle 16. At the lowermost portion of the inner periphery of the lower part 14, a contact portion 25 that contacts the flange portion 3c of the outer container 3 is formed so as to protrude inward. At a position near the base end of the handle of the lower part 14, a welding portion 23 welded to the welding portion 24 is provided.
Is provided.

The plug 7 having the threaded portion screwed into the threaded portion 19a is screwed into the plug attaching portion 19, whereby the opening 17 of the annular portion 18 is closed.
Further, a packing 26 is arranged between the plug body attaching portion 19 of the upper part 13 and the inner container 2.

Next, an embodiment of the method for manufacturing a heat insulating container of the present invention will be described with reference to FIGS. First, one end edge 10a of the radiation prevention film 10 is arranged on the outer periphery of the cylindrical portion 2b along the positioning mark 9. Thus, by arranging the one edge 10a of the film 10 along the mark 9 along the cylinder axis direction, the film 10 can be positioned so that the one edge 10a is accurately along the cylinder axis direction.

When positioning the film 10,
The film 10 is configured such that the discrimination mark 10c is located on the upper end side of the one edge 10a. When the film 10 is positioned, since the identification mark 10c is provided on the film 10, an accident that the radiation prevention film 10 is erroneously installed with the back side facing outside can not occur. This is because when the radiation prevention film 10 is disposed on the cylindrical portion 2b with the back side facing outward, the discrimination mark 10
This is because c is no longer located at the upper end of the one edge 10a, and it is possible to immediately confirm that the rear side faces outward.

Next, one end edge 10a is connected to the cylindrical portion 2 as required.
b, using tape or the like, and radiation-prevention film 1
0 around the cylindrical portion 2b for one round, and then the tape 1
1, the other end 10b is attached to the cylindrical portion 2b. At this time, the bonding position of the other end 10b is, for example, 0.1 mm between the film 10 at a portion other than both ends and the outer surface of the cylindrical portion 2b.
It is preferable that the gap is set so as to generate a gap of about 3 mm. By setting the attachment position of the film 10 so that a gap is formed between the film 10 and the outer surface of the cylindrical portion 2b,
Even if the inner diameter of the inner container 2 becomes high due to the high-temperature content liquid and the outer diameter of the cylindrical portion 2b becomes large due to thermal expansion, the film 1
0 can be prevented from being applied with a tensile force, and the film 10 can be prevented from breaking or peeling off from the inner container 2.

Next, the inner container 2 to which the film 10 is attached is housed in the outer container 3, and the inner container 2 has a flange portion 2c.
And the flange 3c of the outer container 3 are joined to each other by vibration welding or the like.

Next, the air in the gap 4 between the inner container 2 and the outer container 3 is evacuated by a vacuum pump or the like through a ventilation hole 3e provided in the bottom plate 3a of the outer container 3.
Next, the low thermal conductivity gas is introduced into the cavity 4 through the vent 3e. It is preferable that the pressure of the gas introduced into the gap portion 4 be approximately atmospheric pressure at normal temperature. Next, the ventilation holes 3e are sealed with the sealing plate 1 using a cyanoacrylate adhesive or the like.
Close with 2.

Next, the upper part 13 is connected to the plug attaching portion 1.
9 was attached to the open end of the inner container 2 so as to be located in the inner container 2, the lower part 14 was passed through the outer container 3 from the bottom plate side, and the engaging projection 22 was provided on the upper part 13. It is joined to the upper part 13 by forcibly fitting it into the engaging recess 21. When the upper part 13 is attached, it is structurally possible to make the circumferential position of the handle 16 substantially coincide with the circumferential positions of the one end and the other end edges 10b and 10c of the film 10. By determining the circumferential position of the handle 16 as described above, the handle 16
Are located radially outward of the one end and the other end 10b, 10c so that the one end and the other end 10b, 10c are hard to be seen from the outside, and the heat insulating container 1 can be made to have an excellent appearance. . Next, the plug 7 is connected to the plug mounting portion 1.
9 to obtain the heat insulating container 1 shown in FIG.

According to the method for manufacturing the heat insulating container, the following effects can be obtained. In the above method, when the radiation prevention film 10 is attached to the outer surface of the inner container 2 using one having the positioning mark 9 on the outer surface of the inner container 2 along the axial direction of the cylindrical portion, one edge 10a of the film 10 is used.
Is positioned in accordance with the mark 9, so that the position of the one end 10a with respect to the inner container 2 can be easily and accurately determined along the axial direction of the cylindrical portion. For this reason, inner container 2
Position of the film 10 with respect to the container 1 can be easily and accurately set, and the manufacturing operation of the container 1 is simplified,
Production efficiency can be increased and manufacturing costs can be reduced.

By using a film 10 having a discriminating mark 10c at the upper end of one edge 10a and having a non-mirror symmetrical shape, the film 10 is erroneously turned with its back side facing out. When it is arranged on the portion 2b, it can be confirmed immediately. For this reason, it is possible to prevent an accident in which the film 10 is installed with the back side facing outside, improve the production yield, and further reduce the production cost.

When the film 10 is attached to the cylindrical portion 2b, the position where the film 10 is attached is determined so that a gap is formed between the film 10 and the outer surface of the cylindrical portion 2b. Even when the temperature of the container 2 becomes high and the outer diameter of the cylindrical portion 2b increases due to thermal expansion, it is possible to prevent the tensile force from being applied to the film 10 and to prevent the film 10 from breaking or peeling from the inner container 2.

In the heat insulating container, the inner container 2 has the positioning mark 9 on the outer surface of the cylindrical portion 2b, and the radiation prevention film 10 has the one end 10a aligned with the positioning mark 9 in the inner container 2. As described above, the position of the film 10 with respect to the inner container 2 can be easily and accurately set as described above, thereby simplifying the manufacturing operation of the container 1 and increasing the production efficiency and reducing the production cost. Can be planned.

In the above-mentioned method, the case where the inner container 2 provided with the positioning mark 9 which is a ridge on the cylindrical portion 2b is exemplified, but the shape of the positioning mark is not limited to this.
The shape may be an arbitrary shape such as a groove shape or a plurality of dot shapes arranged in a predetermined direction (such as the axial direction of the cylindrical portion). Further, the notch is illustrated as the discrimination mark 10c, but is not limited thereto.
It may be a hole formed in the film, or an entry made with ink or the like. In the case where the discrimination mark is notched, the shape is not limited to the L-shape, but may be an arbitrary shape such as a U-shape or a semicircle. Furthermore, the presence / absence and formation position of the identification mark are not limited to those illustrated as long as the state in which the front side of the film faces outward and the state in which the back side faces outward can be determined.

[0033]

As described above, in the manufacturing method of the present invention, the inner container having the mark for positioning the anti-radiation film on the outer surface is used to attach the anti-radiation film to the outer surface of the inner container. Since one end of the film is positioned in accordance with the mark, the position of the film with respect to the inner container can be easily and accurately determined. Therefore, the manufacturing operation can be facilitated, the production efficiency can be increased, and the manufacturing cost can be reduced. In addition, by using an anti-reflection film that is formed to be non-reflective symmetric, it prevents the accidental installation of the film with its back side facing out and improves the production yield. As a result, the manufacturing cost can be further reduced.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an embodiment of a heat insulating container of the present invention.

FIG. 2 is a sectional view showing a structure of a shoulder member of the heat insulating container shown in FIG.

FIG. 3 is a plan view showing an anti-radiation film used in the heat insulating container shown in FIG.

FIG. 4 is a process diagram illustrating an embodiment of the method for manufacturing a heat insulating container of the present invention.

FIG. 5 is a process drawing following FIG. 4;

FIG. 6 is a process drawing following FIG. 5;

FIG. 7 is a sectional view showing a conventional heat insulating container.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Heat insulation container, 2 ... Inner container, 2c ... Flange part (mouth part), 3 ... Outer container, 3c ... Flange part (mouth part),
Reference numeral 4: void portion, 9: mark for positioning the anti-radiation film, 10: anti-radiation film, 10a: one end edge

────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] January 31, 2000 (200.1.3
1)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claims

[Correction method] Change

[Correction contents]

[Claims]

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0004

[Correction method] Change

[Correction contents]

[0004]

According to the present invention, there is provided a heat insulating container comprising:
An inner container made of clear material is placed in an outer container made of transparent material.
The inner container and the outer container are housed with a gap
It is joined to each other at the base, and a transparent material is
A radiation-prevention film made of
That the lum is formed to be non-reflective symmetric
Features. The method for producing an insulated container according to the present invention comprises a transparent material.
A radiation prevention film made of a transparent material is attached to the outer surface of the inner container made of, and the inner container is accommodated in an outer container made of a transparent material with a gap therebetween, and these inner containers and the outer container are placed at the mouth portion. A method for producing a heat insulating container to be joined to each other, wherein a film formed so as to have a non-reflective symmetric shape is used as an anti-radiation film.

[Procedure amendment 3]

[Document name to be amended] Statement

[Correction target item name] 0005

[Correction method] Change

[Correction contents]

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The heat insulating container of the present invention is characterized in that it is transparent.
The inner container made of material is empty in the outer container made of transparent material.
The inner container and the outer container are housed with a gap
Parts are joined to each other in the inner
Anti-radiation film is attached,
Is formed to be non-reflective symmetric.
You.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0006

[Correction method] Change

[Correction contents]

[0006] The heat insulating container of the present invention comprises an anti-radiation film.
Is a non-reflective symmetrical shape (front side facing out and back side
The shape is different from the state of facing out)
So the front and back of the film can be easily identified from the shape
You. Therefore, if the anti-radiation film is
Prevent accidents, improve production yield,
Manufacturing costs can be reduced. In addition, container inside and outside
And the anti-radiation film are transparent,
Is the content liquid external through the outer container and the anti-radiation film?
You can see it from For this reason, the content liquid can be easily obtained.
It can be recognized.

[Procedure amendment 5]

[Document name to be amended] Statement

[Correction target item name] 0007

[Correction method] Change

[Correction contents]

Further, according to the method for producing a heat insulating container of the present invention,
Radiation made of transparent material on the outer surface of inner container made of transparent material
Paste the prevention film and remove this inner container from transparent material
Inside the outer container with a gap between them,
Manufacture of heat-insulated containers that join the outer container to each other at the mouth
Non-reflection symmetric as anti-radiation film
Since it is used to have a shape,
Accidents when the anti-radiation film is installed
Prevent, improve manufacturing yield and reduce manufacturing costs
Can be achieved.

[Procedure amendment 6]

[Document name to be amended] Statement

[Correction target item name] 0008

[Correction method] Change

[Correction contents]

When attaching a film to an inner container
So that there is a gap between the film and the outer surface of the inner container
The attachment position can also be determined. This allows high
The inner container is thermally expanded due to the warm liquid and the outer diameter is increased.
Even when the film is
Breakage of the system and peeling from the inner container can be prevented.

[Procedure amendment 7]

[Document name to be amended] Statement

[Correction target item name] 0016

[Correction method] Change

[Correction contents]

As the material of the inner container 2 and the outer container 3, synthetic resin, glass, etc. can be used.
2, N2, CO2 with respect to 1g / m ² / 24hr / at
It is preferable to use a synthetic resin having a gas permeability of not more than m. When the gas permeability exceeds the above-mentioned value, gas permeation from the surfaces of the inner container 2 and the outer container 3 occurs during long-term use, and the heat insulation property is likely to be reduced. Ma
The inner container 2 and the outer container 3 are made of a transparent material.
Is used. Whether the inner container 2 and the outer container 3 are made of a transparent material
The contents liquid can be visually recognized from outside
become able to. Specifically, it is preferable to use a synthetic resin such as a polyethylene naphthalate resin, a polyacrylonitrile resin, and a methyl methacrylate resin.

[Procedure amendment 8]

[Document name to be amended] Statement

[Correction target item name] 0033

[Correction method] Change

[Correction contents]

[0033]

As described above, the insulated container of the present invention is provided.
, The anti-radiation film becomes non-reflective symmetric
So that the front and back of the film are
It can be easily determined. Therefore, the anti-radiation film
Prevent accidents caused by accidental installation and improve production yield
And manufacturing cost can be reduced. Also,
Since the outer container and the anti-radiation film are transparent,
Through the inner and outer containers and anti-radiation film
It can be seen from the part. For this reason, the content liquid can be easily
Can be confirmed .

 ────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shuo Matsuda 1-16-7 Nishi-Shimbashi, Minato-ku, Tokyo F-term in Nippon Oxide Co., Ltd. 4B002 AA01 BA53 CA43

Claims (3)

[Claims] 1. An anti-radiation film is adhered to an outer surface of an inner container, and the inner container is accommodated in an outer container with a gap therebetween,
A method for manufacturing an insulated container in which the inner container and the outer container are joined to each other at a mouth portion, wherein the outer surface of the inner container has an anti-radiation film positioning mark, and the anti-radiation film is attached to the outer surface of the inner container. At this time, a method of manufacturing a heat insulating container, comprising positioning one end of the film in accordance with the positioning mark and winding the film around an inner container. 2. An anti-radiation film is attached to the outer surface of the inner container, and the inner container is accommodated in the outer container with a gap therebetween,
A method for manufacturing a heat insulating container in which the inner container and the outer container are joined to each other at a mouth portion, wherein the anti-radiation film is formed so as to have a non-reflection symmetric shape. Production method. 3. An inner container is accommodated in an outer container with a gap therebetween, and the inner container and the outer container are joined to each other at a mouth portion, and a radiation prevention film is attached to an outer surface of the inner container. Has an anti-radiation film positioning mark on the outer surface thereof, wherein the anti-radiation film is positioned with respect to the inner container with one end aligned with the positioning mark.