WO2017038098A1 - Contenant à retenue de chaleur et son procédé de fabrication - Google Patents

Contenant à retenue de chaleur et son procédé de fabrication Download PDF

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Publication number
WO2017038098A1
WO2017038098A1 PCT/JP2016/003997 JP2016003997W WO2017038098A1 WO 2017038098 A1 WO2017038098 A1 WO 2017038098A1 JP 2016003997 W JP2016003997 W JP 2016003997W WO 2017038098 A1 WO2017038098 A1 WO 2017038098A1
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WO
WIPO (PCT)
Prior art keywords
heat
resin layer
container
inner resin
thickness
Prior art date
Application number
PCT/JP2016/003997
Other languages
English (en)
Japanese (ja)
Inventor
阿部　雄一
和彦 久保
Original Assignee
パナソニックＩｐマネジメント株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by パナソニックＩｐマネジメント株式会社 filed Critical パナソニックＩｐマネジメント株式会社
Priority to JP2017537553A priority Critical patent/JPWO2017038098A1/ja
Publication of WO2017038098A1 publication Critical patent/WO2017038098A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J41/00—Thermally-insulated vessels, e.g. flasks, jugs, jars
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/34—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within the package
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/38—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation

Definitions

  • the present invention relates to a heat insulation container such as a heat insulation lunch box and a heat insulation water bottle, and a method for manufacturing the same.
  • Patent Document 1 discloses a conventional heat insulation container.
  • the heat insulating container includes an outer resin layer, an inner resin layer, and a heat insulator that is provided between the outer resin layer and the inner resin layer and has a thermal conductivity smaller than that of air.
  • This heat insulation container is small and light and can be used in a microwave oven.
  • FIG. 1 is a cross-sectional view of a heat retaining container in the embodiment.
  • FIG. 2A is a cross-sectional view illustrating a manufacturing process of a heat retaining container in the embodiment.
  • FIG. 2B is a cross-sectional view illustrating a manufacturing process of the heat insulation container in the embodiment.
  • FIG. 2C is a plan view of the heat insulator of the heat insulating container in the embodiment.
  • FIG. 2D is a cross-sectional view illustrating a manufacturing process of the heat insulation container in the embodiment.
  • FIG. 1 is a cross-sectional view of a heat insulating container 51 in the embodiment.
  • the heat retaining container 51 includes a container part 14 and a lid body 16.
  • the container portion 14 includes an outer resin layer 11 made of polypropylene, an inner resin layer 12 made of polypropylene, and a heat insulator 13 provided between the outer resin layer 11 and the inner resin layer 12.
  • the outer resin layer 11 and the inner resin layer 12 seal the heat insulator 13.
  • the outer resin layer 11 and the inner resin layer 12 completely seal the heat insulator 13, and the heat insulator 13 is not exposed from the outer resin layer 11 and the inner resin layer 12.
  • the container part 14 is provided with a storage space 14A for storing the storage 51A.
  • the accommodation space 14 ⁇ / b> A communicates with the outside of the container portion 14 through the opening 15.
  • the lid 16 covers the opening 15 of the container part 14.
  • the lid 16 includes an outer resin layer 111 made of polypropylene, an inner resin layer 112 made of polypropylene, and a heat insulator 113 provided between the outer resin layer 111 and the inner resin layer 112. Have.
  • the outer resin layer 111 and the inner resin layer 112 seal the heat insulator 113.
  • the outer resin layer 111 and the inner resin layer 112 completely seal the heat insulator 113, and the heat insulator 113 is not exposed from the outer resin layer 111 and the inner resin layer 112.
  • the inner resin layers 12 and 112 surround the accommodation space 14A.
  • the outer resin layer 11 covers the inner resin layer 12, and the outer resin layer 111 covers the inner resin layer 112.
  • the thickness of the outer resin layers 11 and 111 and the inner resin layers 12 and 112 is about 0.5 mm.
  • the heat insulator 13 includes a fiber sheet 13A and a xerogel 13B supported on the fiber sheet 13A.
  • the heat insulator 113 includes a fiber sheet 113A and a xerogel 113B supported on the fiber sheet 113A.
  • the xerogels 13B and 113B are silica xerogels.
  • the fiber sheets 13A and 113A are non-woven fabrics.
  • the thermal conductivity of the heat insulators 13 and 113 is about 0.020 W / m ⁇ K, which is smaller than the thermal conductivity of air, 0.026 W / m ⁇ K.
  • the thickness of the heat insulators 13 and 113 is about 2 mm, and the rate of change in thickness when a pressure of 100 kPa is applied to the heat insulators 13 and 113 is about 3%.
  • the heat insulators 13 and 113 in the embodiment have a small rate of change in thickness with respect to the applied pressure, the strength of the heat insulating container 51 can be maintained even if the resin layers 11, 12, 111, and 113 are thinned. it can. In order to obtain this effect, it is desirable that the heat insulators 13 and 113 have a thickness change rate of 10% or less when a pressure of 100 kPa is applied. Furthermore, by making the thickness of the heat insulators 13 and 113 thicker than that of the outer resin layers 11 and 111 and the inner resin layers 12 and 112, respectively, it is possible to obtain the heat retaining container 51 having excellent heat insulation and large capacity.
  • the lid body 16 is provided with a vent hole 17 that allows the accommodation space 14A to communicate with the outside of the heat retaining container 51.
  • the lid body 16 preferably has a valve 17A for opening and closing the vent hole 17. Thereby, heating in the microwave oven is possible with the opening 15 closed by the lid 16.
  • the valve 17A of the vent hole 17 may be manually opened or closed, or may be automatically opened when the pressure increases.
  • Heating the heat retaining container 51 having the heat insulators 13 and 113 inside with a microwave oven prevents heat from escaping to the outside as compared to heating a container without a heat insulator, so that power consumption can be reduced. .
  • the material or thickness of the outer resin layer 11 and the inner resin layer 12 may be different, and the material or thickness of the outer resin layer 111 and inner resin layer 112 may be different.
  • the thickness of the inner resin layers 12 and 112 is about 0.4 mm, and the thickness of the outer resin layer 11 is about 0.6 mm.
  • the thickness of the inner resin layer 12 may be smaller than the thickness of the outer resin layer 11. Thereby, the heat capacity of the inner resin layer 12 can be reduced, the power consumption can be reduced, and the heat retaining container 51 that is strong against external force can be obtained.
  • FIG. 2A and 2B are cross-sectional views for explaining a method of manufacturing the heat retaining container 51.
  • FIG. 2C is a plan view of the heat insulator 13.
  • FIG. 2D is a cross-sectional view for explaining a method for manufacturing the heat retaining container 51.
  • 2A to 2D show a method for manufacturing the container portion 14.
  • the lid 16 shown in FIG. 1 can be manufactured by the same method as the container part 14.
  • polypropylene which is a thermoplastic resin is molded to obtain an outer resin casing 18 shown in FIG. 2A.
  • polypropylene which is a thermoplastic resin is molded to obtain an inner resin casing 19 shown in FIG. 2B.
  • the heat insulating sheet 20 is obtained by carrying the xerogel 13B on the fiber sheet 13A, and the heat insulating sheet 20 is processed into a predetermined shape as shown in FIG. 2C.
  • the container portion 14 is obtained by hot pressing an insulating sheet 20 between the outer resin casing 18 and the inner resin casing 19.
  • the heat insulating container 51 is obtained by molding the lid body 16 shown in FIG. 1 by the same process. Thereby, even if the resin layers 11 and 12 are thinned, the heat insulator 13 can be prevented from being exposed, and even if the resin layers 111 and 112 are thinned, the heat insulator 113 can be prevented from being exposed.
  • the heat-retaining container 51 when the heat-retaining container 51 is applied to a cooking device for a microwave oven, since the resin and the xerogel pass radio waves from the microwave oven, only the food that is the accommodation 51A accommodated in the accommodation space 14A can be heated. In the heat retaining container 51, heat does not escape to the outside, so that heating can be saved in a short time compared with a normal microwave oven cooking utensil. Furthermore, in a normal cooking device for a microwave oven, the heat transmitted from the food hits the entire container, so that it may be difficult to remove the container from the microwave oven due to the heat. On the other hand, the heat retaining container 51 in the embodiment does not become hot in the microwave oven and can be easily taken out from the microwave oven.
  • the heat insulation container 51 when using the heat insulation container 51 for a microwave oven, it is desirable to provide the ventilation hole 17 in the cover body 16, and, thereby, the heat insulation container 51 can be used safely. In this case, in order not to forget to open the vent hole 17, it is more desirable that the valve 17A of the vent hole 17 is automatically opened by the pressure in the accommodating space 14A.
  • the heat retaining container 51 When the heat retaining container 51 is applied to a lunch box, the heat retaining container 51 can be simply used while keeping warm. If the microwave oven can be used, the heat retaining container 51 can be reheated. In addition, if the storage space 14A of the container part 14 is shallow and the opening part 15 is sufficiently wide, the food that is the stored object 51A is packed in the heat retaining container 51, and the container 16 can be frozen in a freezer without closing the lid body 16. Is possible. Although cold air is not transmitted from the bottom surface and side surface of the storage space 14A of the container portion 14, cold air is transmitted from the opening 15 into the storage space 14A, and the food can be frozen.
  • the effect of the heat insulators 13 and 113 can keep the frozen state for a long time, thereby preventing the food from being damaged.
  • the contents 51A can be eaten deliciously by putting them together with the heat-retaining container 51 in a microwave oven and thawing and heating them.
  • the conventional heat insulating water bottle has a metal vacuum insulation structure, it is heavy and cannot be heated in a microwave oven.
  • the heat retaining container 51 in the embodiment is used for a water bottle, it is light and can be heated in a microwave oven.
  • the stored item 51A in the heat retaining container 51 can be heated only by putting it in the microwave oven with the lid 16 opened.
  • the water canteen is made in this manner, even if it is possible to use a microwave oven at a convenience store or the like on the go, even a drink at room temperature can be carried in a warm state.
  • the outer resin layers 11 and 111 and the inner resin layers 12 and 112 are made of a resin film, and a heat insulator 13 is provided between the outer resin layer 11 and the inner resin layer 12.
  • a heat insulator 113 may be provided between the resin layer 111 and the inner resin layer 112, and the container portion 14 and the lid body 16 may each be a so-called pouch container.
  • the thermal insulation container 51 can be applied to a box for transporting fresh food such as fish.
  • a box for transporting fresh food such as fish.
  • a box is made of polystyrene foam, but a thick one is required for heat insulation and strength. Therefore, the internal volume is small with respect to the size of the outer shape. If the heat retaining container 51 in the embodiment is used for such a box, the thickness of the container can be reduced, so that the transportation efficiency can be improved.
  • a pressure valve to the lid 16, it can be used as a pressure cooker. After the cooking material is put into the pressure cooker and the lid 16 is closed, the food can be cooked by heating in a microwave oven. Thereby, since heat hardly escapes out of the heat retaining container 51, a pressure cooker using a microwave oven that can be cooked efficiently can be obtained.
  • the heat-retaining container according to the present invention is a small, light-weight heat-retaining container that can be used in a microwave oven, and can be applied to various items such as a lunch box, a water bottle, and a microwave cooking utensil.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Packages (AREA)
  • Thermal Insulation (AREA)
  • Thermally Insulated Containers For Foods (AREA)
  • Package Specialized In Special Use (AREA)

Abstract

Contenant de retenue de chaleur (21) pourvu d'une couche de résine extérieure (11), d'une couche de résine intérieure (12) et d'un corps d'isolation thermique (13) disposé entre la couche de résine extérieure (11) et la couche de résine intérieure (12) et présentant une conductibilité thermique inférieure à celle de l'air. Le contenant de retenue de chaleur (21) est compact et léger, et peut être utilisé dans des fours à micro-ondes.
PCT/JP2016/003997 2015-09-02 2016-09-01 Contenant à retenue de chaleur et son procédé de fabrication WO2017038098A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2017537553A JPWO2017038098A1 (ja) 2015-09-02 2016-09-01 保温容器およびその製造方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2015172514 2015-09-02
JP2015-172514 2015-09-02

Publications (1)

Publication Number Publication Date
WO2017038098A1 true WO2017038098A1 (fr) 2017-03-09

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PCT/JP2016/003997 WO2017038098A1 (fr) 2015-09-02 2016-09-01 Contenant à retenue de chaleur et son procédé de fabrication

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JP (1) JPWO2017038098A1 (fr)
WO (1) WO2017038098A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020523257A (ja) * 2017-06-09 2020-08-06 イエティ クーラーズ エルエルシーＹｅｔｉ Ｃｏｏｌｅｒｓ，ＬＬＣ 断熱デバイス

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6254972U (fr) * 1985-09-25 1987-04-06
JP2003204886A (ja) * 2002-01-17 2003-07-22 Matsushita Electric Ind Co Ltd 電気湯沸かし器
JP2005342227A (ja) * 2004-06-03 2005-12-15 Nakamura Hiroshi 保温食器

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57133870A (en) * 1981-01-30 1982-08-18 Tokyo Shibaura Electric Co Heat insulating structure
JPH0824520B2 (ja) * 1992-06-23 1996-03-13 リョービ株式会社 保冷箱
JP3445550B2 (ja) * 2000-03-01 2003-09-08 タイガー魔法瓶株式会社 保温容器の蓋構造
JP2005247581A (ja) * 2004-02-03 2005-09-15 Matsushita Electric Ind Co Ltd 冷凍商品の配送方法
JP2014234844A (ja) * 2013-05-31 2014-12-15 日立アプライアンス株式会社 真空断熱材、及び断熱機器

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6254972U (fr) * 1985-09-25 1987-04-06
JP2003204886A (ja) * 2002-01-17 2003-07-22 Matsushita Electric Ind Co Ltd 電気湯沸かし器
JP2005342227A (ja) * 2004-06-03 2005-12-15 Nakamura Hiroshi 保温食器

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020523257A (ja) * 2017-06-09 2020-08-06 イエティ クーラーズ エルエルシーＹｅｔｉ Ｃｏｏｌｅｒｓ，ＬＬＣ 断熱デバイス
JP7228534B2 (ja) 2017-06-09 2023-02-24 イエティ クーラーズ エルエルシー 断熱デバイス

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