WO2021132457A1 - Heat insulation bag, heat retention bag, and method for manufacturing heat insulation bag - Google Patents

Heat insulation bag, heat retention bag, and method for manufacturing heat insulation bag Download PDF

Info

Publication number
WO2021132457A1
WO2021132457A1 PCT/JP2020/048430 JP2020048430W WO2021132457A1 WO 2021132457 A1 WO2021132457 A1 WO 2021132457A1 JP 2020048430 W JP2020048430 W JP 2020048430W WO 2021132457 A1 WO2021132457 A1 WO 2021132457A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat insulating
bag
vacuum heat
outer cover
insulating material
Prior art date
Application number
PCT/JP2020/048430
Other languages
French (fr)
Japanese (ja)
Inventor
宅島　司
裕一 秦
里江 坂内
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 JP2021567608A priority Critical patent/JP7325053B2/en
Priority to CN202080061483.XA priority patent/CN114341021B/en
Publication of WO2021132457A1 publication Critical patent/WO2021132457A1/en

Links

Images

Classifications

    • 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
    • B65D29/00—Sacks or like containers made of fabrics; Flexible containers of open-work, e.g. net-like construction
    • 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
    • B65D81/18—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 providing specific environment for contents, e.g. temperature above or below ambient
    • B65D81/20—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 providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L59/00—Thermal insulation in general
    • F16L59/06—Arrangements using an air layer or vacuum
    • F16L59/065—Arrangements using an air layer or vacuum using vacuum

Definitions

  • the present invention relates to a heat insulating bag, a heat insulating bag, and a method for manufacturing a heat insulating bag.
  • Patent Document 1 describes a heat insulating bag in which a sheet having a three-layer structure made of polyethylene, polyethylene foam, and vapor-deposited polyethylene terephthalate is formed in a bag shape.
  • an object of the present invention is to provide a heat insulating bag, a heat insulating bag, and a method for manufacturing a heat insulating bag, which can improve the heat insulating performance by using the vacuum heat insulating material.
  • the present invention is a heat insulating bag in the form of a sheet having a flexible plate-shaped core material and an outer cover material that accommodates the core material and seals it in a reduced pressure state. It is characterized by having an opening formed by making the vacuum heat insulating material into a bag shape.
  • the heat transfer between the inside and the outside of the heat insulating bag is reduced by the vacuum heat insulating material, so that the heat insulating performance of the heat insulating bag can be improved.
  • FIG. 1 is a perspective view of a heat insulating bag according to the present embodiment.
  • FIG. 2 is a perspective view of the vacuum heat insulating material used for the heat insulating bag of the present embodiment.
  • FIG. 3 is an explanatory view showing a method of manufacturing the heat insulating bag of the present embodiment.
  • FIG. 4 is a partially broken perspective view showing a heat insulating bag provided with the heat insulating bag of the present embodiment.
  • the first invention is a heat insulating bag, which is a sheet-shaped vacuum heat insulating material having a flexible plate-shaped core material and an outer cover material that accommodates the core material and seals it in a reduced pressure state. It is characterized by having an opening formed by forming the shape. According to this, the heat transfer between the inside and the outside of the heat insulating bag made of the vacuum heat insulating material is reduced, and the heat insulating performance of the heat insulating bag can be improved.
  • the vacuum heat insulating material has a rectangular shape, and is bent at substantially the center of the vacuum heat insulating material along a straight line intersecting one side of the vacuum heat insulating material and the other side facing the one side. According to this, the vacuum heat insulating material can be easily formed into a bag shape. Further, since the vacuum heat insulating material is bent, the bottom surface of the heat insulating bag is formed of the vacuum heat insulating material. Therefore, the heat insulating performance of the heat insulating bag can be further improved.
  • the vacuum heat insulating material has a non-insulating portion formed of the outer cover material on the outside of the core material, and the non-insulating portions facing each other are overlapped and folded by being bent. It is adhered to the outer surface of the jacket material. According to this, since the double non-insulating portion is bent on the side surface of the heat insulating bag and adhered to the outer surface of the outer cover material, the heat insulating performance on the side surface of the heat insulating bag can be improved. Therefore, the heat insulating performance of the heat insulating bag can be further improved.
  • the non-insulating portion forming the opening of the vacuum heat insulating material is folded toward the outside of the jacket material and adhered to the outer surface of the jacket material. According to this, since the inside of the opening can be formed smoothly, it becomes easy to put the article in and out of the heat insulating bag.
  • a fifth invention is a heat insulating bag, comprising a protective bag that houses and protects the heat insulating bag, and the heat insulating bag has an opening in which the opening direction coincides with the opening direction of the protective bag. As such, it is adhered to the inside of the protective bag. According to this, it is possible to provide a heat-retaining bag having high heat-retaining property by using a heat-insulating bag. In addition, the vacuum heat insulating material of the heat insulating bag is protected by the protective bag. Therefore, damage to the heat insulating bag can be suppressed.
  • the sixth invention is a method for manufacturing a heat insulating bag, which is formed in a rectangular shape having a flexible plate-shaped core material and an outer cover material that accommodates the core material and seals it in a reduced pressure state.
  • the sheet-shaped vacuum heat insulating material is bent at substantially the center of the vacuum heat insulating material along a straight line intersecting one side of the vacuum heat insulating material and the other side facing the one side, and then the core material is bent.
  • the non-insulating portion formed of the jacket material is adhered to the outside to form a bag shape. According to this, since the vacuum heat insulating material can be bent to manufacture the heat insulating bag, the heat insulating performance of the heat insulating bag can be improved and the heat insulating bag can be easily manufactured.
  • FIG. 1 is a perspective view showing an embodiment of a heat insulating bag according to the present invention.
  • FIG. 2 is a perspective view of the vacuum heat insulating material used for the heat insulating bag of the present embodiment.
  • the thickness of the core material 13 of the vacuum heat insulating material 11 is shown larger than that of the actual product.
  • the heat insulating bag 1 in the present embodiment is configured in the shape of a bag having side sides 3 and 4, bottom 5 and outer surfaces 6 and 7 in FIG. 1 and having an opening 2 in the upper part. It is equipped with a main body 8.
  • the heat insulating bag 1 stores, for example, an article such as food and keeps it warm inside the main body 8 through the opening 2.
  • the vacuum heat insulating material 11 forming the heat insulating bag 1 includes an outer cover material 12, a core material 13, and a moisture adsorbent 14.
  • the outer cover material 12 has a rectangular shape in a plan view, and the outer cover material 12 is formed in a bag shape with one side open.
  • the outer cover material may be any material that suppresses the intrusion of outside air into the vacuum heat insulating material 11 and has flexibility.
  • the heat welding film a resin fill such as a low density polyethylene film can be used.
  • the gas barrier film a known film having a gas barrier property can be preferably used.
  • the upper surface of the vacuum heat insulating material 11 which is the inside of the heat insulating bag 1 is a gas barrier film in which aluminum is vapor-deposited on a resin film, and the lower surface of the vacuum heat insulating material 11 which is the outside of the heat insulating bag 1 is used.
  • Aluminum foil is used as the gas barrier film.
  • the heat-welded film is not particularly specified, but the low-density polyethylene film, the linear low-density polyethylene film, the high-density polyethylene film, the polypropylene film, the polyacrylonitrile film, and the ethylene-vinyl alcohol are all used.
  • a thermoplastic resin such as a polymer film or a mixture thereof can be used.
  • the gas barrier film includes, for example, a metal foil such as an aluminum foil, a copper foil, or a stainless steel foil; a vapor-deposited layer in which a metal or an inorganic oxide is vapor-deposited on a resin film as a base material.
  • a vapor-deposited film; a film in which the surface of the vapor-deposited film is further subjected to a known coating treatment (coated vapor-deposited film); and the like are not particularly limited.
  • the metal or inorganic oxide used in the vapor-deposited film or the coated vapor-deposited film include aluminum, copper, alumina, silica, and the like, but are not particularly limited.
  • the resin constituting the vapor-deposited film or the resin film used as the base material of the coated vapor-deposited film include polyethylene terephthalate (PET) and ethylene-vinyl alcohol copolymer (EVOH), but are not particularly limited.
  • the resin film may be composed of only a resin, or may be composed of a resin composition containing a component other than the resin.
  • the gas barrier film is made of a metal foil, a resin layer or the like may be laminated on the metal foil. Therefore, the gas barrier film may have a single-layer structure or a multi-layer structure.
  • the thickness of the gas barrier film is not particularly limited, and may be a thickness within a range in which the gas barrier property can be exhibited depending on the material of the gas barrier film and the like.
  • the gas barrier of the gas barrier film in the present embodiment may have a gas permeability of 104 [cm3 / m2 ⁇ day ⁇ atm] or less, preferably 103 [cm3 / m2 ⁇ day ⁇ atm] or less. It may be any one, more preferably 102 [cm3 / m2 ⁇ day ⁇ atm] or less.
  • a nylon film, a polyethylene terephthalate film, a polypropylene film or the like can be used as the surface protective film.
  • the core material 13 has a rectangular shape in a plan view.
  • the core material 13 is formed in a sheet shape by laminating, for example, chopped strand mats.
  • the chopped strand mat is obtained by cutting a strand of glass fiber, irregularly dispersing the fiber direction, and forming it into a sheet shape using a binder.
  • the core material 13 is formed by laminating, for example, chopped strand mats having a thickness of 0.5 mm, and is formed so that the thickness under reduced pressure is, for example, 2 mm to 3 mm. Has been done.
  • the fiber direction of the core material 13 is orthogonal to the thickness direction of the core material 13, and it becomes difficult for heat to be transferred in the thickness direction of the core material 13. That is, the heat transfer coefficient of the core material 13 can be reduced. Further, by setting the thickness of the core material 13 under reduced pressure to 2 mm to 3 mm, the flexible vacuum heat insulating material 11 can be formed.
  • the core material 13 is not limited to the chopped strand mat, and any material may be used as long as it has heat insulating properties and is flexible. Specific examples thereof include known materials such as fiber materials and foam materials. Examples of the inorganic fiber include glass fiber, ceramic fiber, slag wool fiber, rock wool fiber and the like. Further, since the core material 13 may be molded into a plate shape and used, a known binder material, powder or the like may be contained in addition to these inorganic fibers. Examples of the material other than the inorganic fiber that can be used as the core material 13 include a thermosetting foam. The thermosetting foam may be formed by foaming a thermosetting resin or a resin composition containing the same (thermosetting resin composition) by a known method.
  • thermosetting resin examples include epoxy resin, phenol resin, unsaturated polyester resin, urea resin, melamine resin, polyimide, polyurethane, and the like, but are not particularly limited.
  • foaming method is not particularly limited, and foaming may be performed using a known foaming agent under known conditions.
  • materials that can be used as the core material 13 include known organic fibers (fibers made of organic materials), and the specific types thereof are particularly specific. Not limited.
  • the moisture adsorbent 14 adsorbs the moisture in the outer cover material 12 to maintain the heat insulating performance of the vacuum heat insulating material 11.
  • the moisture adsorbent 14 is sealed inside the outer cover material 12 together with the core material 13, and the moisture remaining inside the outer cover material 12, that is, the inside of the vacuum heat insulating structure, or the moisture that permeates and invades from the outside over time. It is adsorbed and removed.
  • the specific type of the moisture adsorbent 14 is not particularly limited, and typically, physical moisture adsorption such as silica gel, activated alumina, activated carbon, metal adsorbent, zeolite and the like.
  • materials physical adsorbents
  • materials that exhibit their properties.
  • examples of the water adsorbent include materials (chemical adsorbents) that exhibit chemical water adsorbability, such as alkali metals, oxides of alkaline earth metals, and hydroxides. Only one of these materials may be used as the water adsorbent 14, or two or more of these materials may be appropriately combined and used as the water adsorbent 14.
  • the gas adsorbent may be sealed inside the outer cover material 12 together with the moisture adsorbent 14.
  • the gas adsorbent may be any material that adsorbs and removes the gas component remaining inside the outer cover material 12, that is, the inside of the vacuum heat insulating structure, or the gas component that permeates and penetrates from the outside over time.
  • the gas adsorbent may have at least gas adsorbability, but may have not only gas adsorbability but also water adsorbability.
  • the water adsorbability of the gas adsorbent is basically a property of adsorbing water vapor, and can be regarded as a part of the gas adsorbability.
  • the specific type of the gas adsorbent is not particularly limited, and as with the moisture adsorbent 14 described above, known materials such as silica gel, activated alumina, activated carbon, metal adsorbent, and zeolite can be preferably used. Only one of these materials may be used as a gas adsorbent, or two or more of these materials may be appropriately combined and used as a gas adsorbent.
  • ZSM-5 type zeolite copper ion exchange ZSM-5 type zeolite formed by copper ion exchange can be preferably used as the gas adsorbent.
  • Copper ion exchange ZSM-5 type zeolite has excellent adsorption ability not only for nitrogen and oxygen, which are air components, but also for water (water vapor). Therefore, if the gas adsorbent uses copper ion exchange ZSM-5 type zeolite, the moisture adsorbent 14 can also be used, so that the air that could not be exhausted by the vacuum pump during the production of the vacuum heat insulating material 11 can be used. It is possible to satisfactorily adsorb and remove components, a small amount of gas generated inside the vacuum heat insulating material 11 over time, an air component or moisture that permeates and invades from the outside to the inside of the vacuum heat insulating material 11 over time.
  • the vacuum heat insulating material 11 can realize excellent heat insulating performance for a long period of time.
  • the form of use of the water adsorbent 14 and the gas adsorbent is not particularly limited, and examples thereof include powder, a powder package, and a powder molded product. If the gas adsorbent is a copper ion-exchanged ZSM-5 type zeolite, a molded product obtained by molding powder into a predetermined shape can be mentioned.
  • the amount of the moisture adsorbent 14 and the gas adsorbent used is not particularly limited, and may be an amount that can satisfactorily maintain the reduced pressure state (substantially vacuum state) inside the jacket material 12 of the vacuum heat insulating material 11.
  • the inside of the outer cover material 12 is depressurized, and then the opening of the outer cover material 12 is closed by heat welding or the like.
  • the vacuum heat insulating material 11 whose inside is in a reduced pressure state.
  • the outer cover materials 12 are brought into close contact with each other by reducing pressure in the outer region of the core material 13, and the non-heat insulating portion 20 in which the core material 13 does not exist is formed.
  • the non-insulated portion 20 is a side non-insulated portion 24, 25 extending along the longitudinal direction of the vacuum heat insulating material 11 and an end non-insulated portion extending in a direction orthogonal to the side non-insulated portion 24, 25. It is composed of 21 and 22.
  • FIG. 3 is an explanatory diagram showing a method of manufacturing the heat insulating bag 1 of the present embodiment.
  • the vacuum heat insulating material 11 is formed in the heat insulating bag 1 by the steps A to D.
  • the vacuum heat insulating material 11 bends the end non-heat insulating parts 21 and 22 toward the lower side of the vacuum heat insulating material 11 from the state shown in FIG. 2, and the core material 13 of the vacuum heat insulating material 11 exists. Adhere to the outer surface of the location.
  • the vacuum heat insulating material 11 is formed along the bisection line 12c which is a straight line intersecting the right side 12a of the vacuum heat insulating material 11 and the left side 12b which is the other side facing the right side 12a. Bend approximately 180 ° at approximately the center.
  • the bending direction of the vacuum heat insulating material 11 is such that the surfaces to which the end non-heat insulating portions 21 and 22 are bonded face outward. In this state, the side non-insulating portions 24 and 25 of the vacuum heat insulating material 11 are held in a state of being overlapped with each other.
  • the process of bending the vacuum heat insulating material 11 is divided into two steps, step B and step C.
  • step D one of the side non-insulating portions 24 and 25 overlapped with each other is bent and bonded to one side of the vacuum heat insulating material 11. Further, the other side non-insulating portion 25 is bent and adhered to the other surface side of the vacuum heat insulating material 11.
  • the bottom portion 5 is formed by bending the vacuum heat insulating material 11, and the side portions 3 and 4 are formed by adhering the side non-insulating portions 24 and 25, so that the opening 2 is formed.
  • the bag-shaped heat insulating bag 1 having the above can be manufactured.
  • the end non-insulating portions 21 and 22 and the side non-insulating portions 24 and 25 are adhered by, for example, adhering with an adhesive tape.
  • the steps generated when the end non-insulating portions 21 and 22 and the side non-insulating portions 24 and 25 are bent and adhered are covered with the adhesive tape, so that the heat insulating bag is used.
  • the outer surface of 1 can be formed smoothly.
  • the present invention is not limited to this, and an adhesive, welding, or the like may be used.
  • the end non-insulating portions 21 and 22 are adhered to the outside of the vacuum heat insulating material 11, but the end non-insulating portions 21 and 22 are adhered to the inside of the vacuum heat insulating material 11. You may. Further, the side non-insulating portions 24 and 25 are adhered to one surface and the other surface of the vacuum heat insulating material 11, respectively, but the side non-insulating portions 24 and 25 are adhered to the same surface of the vacuum heat insulating material 11, respectively. You may try to do it.
  • the vacuum heat insulating material 11 is bent along the bisection line 12c in a state where one side non-heat insulating portion 24 is bent and adhered to the vacuum heat insulating material 11, and the other side is manufactured.
  • a bag shape having an opening formed in one side portion non-insulating portion 24 may be formed. ..
  • FIG. 4 is a partially broken perspective view showing a heat insulating bag 51 provided with the heat insulating bag 1 of the present embodiment.
  • the heat insulating bag 51 includes a protective bag 53 that houses and protects the heat insulating bag 1 inside.
  • the protective bag 53 is formed in the shape of a rectangular bag having an opening 52 formed on one side.
  • the width dimension of the inner surface of the protective bag 53 is formed to be substantially the same as the width dimension of the heat insulating bag 1.
  • the length from the inner bottom portion 55 to the opening 52 of the protective bag 53 is formed to be longer than the length from the bottom portion 5 to the opening 2 of the heat insulating bag 1.
  • the specific configuration of the protective bag 53 is not particularly limited, but examples thereof include a bag body formed of a cushioning sheet and having flexibility so as to protect the heat insulating bag 1. Can be done.
  • a protective bag 53 can be formed by laminating an aluminum-deposited polyethylene terephthalate film, a foamed polyethylene sheet, and a high-density polyethylene film and using a sheet having a thickness of about 1 to 2 mm.
  • the heat insulating bag 1 is stored so that the opening direction of the opening 2 coincides with the opening direction of the opening 52 of the protective bag 53. Then, in a state where the bottom portion 5 of the heat insulating bag 1 is in contact with the inner bottom portion 55 of the protective bag 53, the heat insulating bag 1 and the protective bag 53 are adhered to each other, and the heat insulating bag 1 and the protective bag 53 are fixed.
  • the heat insulating bag 1 and the protective bag 53 are adhered to each other by, for example, a double-sided tape 57 attached to the outer periphery of the opening 2 of the heat insulating bag 1.
  • the heat insulating bag 1 and the protective bag 53 may be adhered with an adhesive.
  • a portion of the protective bag 53 longer than the heat insulating bag 1 is a folding portion 56, and the folding portion 56 is a state in which the heat insulating bag 1 is stored in the protective bag 53. , Can be folded.
  • the thickness of the core material 13 is formed as thin as about 2 mm to 3 mm, the heat insulating bag 1 is easily bent, and the heat insulating bag 1 can be easily deformed according to the shape of the article to be stored. Goods can be easily put in and taken out of the bag 1. Further, since the heat insulating bag 1 is bent and deformed according to the stored object, the amount of gas existing in the space inside the heat insulating bag 1 can be reduced, and the heat retention of the heat insulating bag 1 can be improved. ..
  • the article Since the article is covered with the vacuum heat insulating material 11, heat transfer to the article is reduced. Since the bottom 5 of the heat insulating bag 1 is also the vacuum heat insulating material 11, heat transfer from the bottom 5 can be suppressed. Further, the portion where the vacuum heat insulating material 11 is bent is only the bottom portion 5, and the vacuum heat insulating material 11 can be easily formed into a bag shape.
  • the heat insulating bag 1 may close the opening 2 while holding the article inside. By closing the opening 2, it is possible to suppress the inflow of outside air from the opening 2 and improve the heat retention performance.
  • the gas barrier film inside the heat insulating bag 1 is made of a resin film vapor-deposited with aluminum, the metal layer of the gas barrier film inside is thinly formed. Therefore, the heat bridging phenomenon in which heat is transferred through the metal layer of the gas barrier film is reduced as compared with the case of using the gas barrier film using the metal foil.
  • the heat insulating bag 1 Since the heat insulating bag 1 is housed in the protective bag 53, the outer surfaces 6 and 7 of the heat insulating bag 1 are covered with the protective bag 53, and the influence of the heat bridge phenomenon generated in the heat insulating bag 1 can be reduced. By closing the opening 52 and folding the folding portion 56, it is possible to suppress the inflow of air into the protective bag 53 through the opening 52.
  • the heat insulating bag 1 is formed of a plate-shaped core material 13 having flexibility and an outer cover material 12 that accommodates the core material 13 and seals it in a reduced pressure state. It has an opening 2 formed by forming the sheet-shaped vacuum heat insulating material 11 to be made into a bag shape. According to this, since the heat insulating bag 1 is composed of the vacuum heat insulating material 11, the heat transfer between the inside and the outside of the heat insulating bag 1 can be reduced by the vacuum heat insulating material 11, and the heat insulating of the heat insulating bag 1 can be reduced. Performance can be improved.
  • the vacuum heat insulating material 11 has a rectangular shape, and is bisected which is a straight line intersecting the right side 12a which is one side of the vacuum heat insulating material 11 and the left side 12b which is the other side facing the right side 12a. It is bent approximately in the center along the line 12c. According to this, the vacuum heat insulating material 11 can be easily formed into a bag shape. Further, since the vacuum heat insulating material 11 is bent at the center, the bottom 5 of the heat insulating bag 1 is formed of the vacuum heat insulating material 11. Therefore, the heat insulating performance of the heat insulating bag 1 can be further improved.
  • the vacuum heat insulating material 11 has the non-insulating portion 20 formed of the outer cover material 12 on the outside of the core material 13, and the side portions of the non-insulating portions 20 facing each other by being bent.
  • the side non-insulating portions 24 are overlapped and folded and adhered to the outer surface 6 which is the outer surface of the outer cover material 12, and by being bent, the side non-insulating portions 25 facing each other are overlapped and folded to form the outer cover material 12. It is adhered to the outer surface 7 which is the outer surface of the.
  • the heat insulating on the side sides 3 and 4 of the insulating bag 1 Performance can be improved. Therefore, the heat insulating performance of the heat insulating bag 1 can be further improved.
  • the end non-insulating portions 21 and 22, which are the non-insulating portions 20 forming the opening 2 are each folded toward the outside of the outer cover material 12, and are formed on the outer surface of the outer cover material 12. It is adhered to certain outer surfaces 6 and 7 to form an opening 2. According to this, since the inside of the opening 2 can be formed smoothly, it becomes easy to put the article in and out of the heat insulating bag 1.
  • the protective bag 53 for storing and protecting the heat insulating bag 1 is provided, and the heat insulating bag 1 has the opening direction of the opening 2 coincident with the direction of the opening 52 of the protective bag 53. , Adhered inside the protective bag 53. According to this, the heat insulating bag 51 having high heat retaining property can be provided by using the heat insulating bag 1. Further, since the vacuum heat insulating material 11 of the heat insulating bag 1 is protected by the protective bag 53, damage to the heat insulating bag 1 can be suppressed.
  • the method for manufacturing the heat insulating bag 1 includes a plate-shaped core material 13 having flexibility and an outer cover material 12 that accommodates the core material 13 and seals it in a reduced pressure state.
  • the sheet-shaped vacuum heat insulating material 11 formed in a rectangular shape is formed into a bisection line 12c which is a straight line intersecting the right side 12a which is one side of the vacuum heat insulating material 11 and the left side 12b which is the other side facing the right side 12a.
  • the vacuum heat insulating material 11 is bent at substantially the center, and after being bent, the non-heat insulating portion 20 formed of the outer cover material 12 is adhered to the outside of the core material 13 to form a bag shape. According to this, since the vacuum heat insulating material 11 can be bent to manufacture the heat insulating bag 1, the heat insulating performance of the heat insulating bag 1 can be improved and the heat insulating bag 1 can be easily manufactured.
  • the heat insulating bag according to the present invention is formed by bending a sheet-shaped vacuum heat insulating material into a bag shape, and can be suitably used as a heat insulating bag that can be easily manufactured at a low manufacturing cost. Is.
  • Insulation bag 2 Openings 3, 4 Sides 6, 7 Outer surface 11 Vacuum heat insulating material 12 Outer cover material 12c Bisection line 13 Core material 20 Non-insulated part 21, 22 Side non-insulated part 24, 25 End non-insulated Part 51 Thermal bag 52 Opening 53 Protective bag

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Thermal Insulation (AREA)

Abstract

The purpose of the present invention is to provide a heat insulation bag having improved heat insulation performance. A heat insulation bag having an opening part 2 is obtained by forming a sheet-shaped vacuum heat insulation material 11 into a bag shape, the vacuum heat insulation material 11 comprising a plate-shaped core material 13 having flexibility, and an outer skin material 12 in which the core material 13 is accommodated and sealed in a reduced pressure state.

Description

断熱袋、保温袋、および断熱袋の製造方法How to manufacture thermal bags, thermal bags, and thermal bags
　本発明は、断熱袋、保温袋、および断熱袋の製造方法に関する。 The present invention relates to a heat insulating bag, a heat insulating bag, and a method for manufacturing a heat insulating bag.
　食品などを収納し、保温して運搬する際に、軽量かつ携帯し易いことから、消費者や、配送業者等によって断熱袋が使用されている。例えば、特許文献１には、ポリエチレン、ポリエチレンフォーム、及び蒸着ポリエチレンテレフタレートからなる３層構造のシートを袋状に形成した断熱袋が記載されている。 Insulation bags are used by consumers, delivery companies, etc. because they are lightweight and easy to carry when storing food, etc., keeping them warm and transporting them. For example, Patent Document 1 describes a heat insulating bag in which a sheet having a three-layer structure made of polyethylene, polyethylene foam, and vapor-deposited polyethylene terephthalate is formed in a bag shape.
特開２０１０－１５５６４３号公報Japanese Unexamined Patent Publication No. 2010-155643
　断熱袋に対して断熱性能を向上させることが求められている。
　しかし、特許文献１の断熱袋では、ポリエチレン、ポリエチレンフォーム、及び蒸着ポリエチレンテレフタレートからなるシートを積層しただけなので、断熱性能を高めるには限界がある。
　また、断熱性能が高いものとして、真空断熱材が存在している。
　しかしながら、真空断熱材は、比較的厚さがあるため、成形が困難であり、袋状の真空断熱材を得るためには、複数枚の真空断熱材を用意したり、真空断熱材に成形を容易にするための加工を施したりする必要があった。 It is required to improve the heat insulating performance of the heat insulating bag.
However, in the heat insulating bag of Patent Document 1, since a sheet made of polyethylene, polyethylene foam, and vapor-deposited polyethylene terephthalate is simply laminated, there is a limit in improving the heat insulating performance.
Further, a vacuum heat insulating material exists as one having high heat insulating performance.
However, since the vacuum heat insulating material is relatively thick, it is difficult to mold it. In order to obtain a bag-shaped vacuum heat insulating material, a plurality of vacuum heat insulating materials are prepared or molded into the vacuum heat insulating material. It was necessary to perform processing to make it easier.
　本発明は、上記課題に鑑み、真空断熱材を用いて断熱性能を高めることが可能な断熱袋、保温袋、および断熱袋の製造方法を提供することを目的とする。 In view of the above problems, an object of the present invention is to provide a heat insulating bag, a heat insulating bag, and a method for manufacturing a heat insulating bag, which can improve the heat insulating performance by using the vacuum heat insulating material.
　前記目的を達成するため、本発明は、断熱袋であって、可撓性を有する板状の芯材と、前記芯材を収容し減圧状態で密封する外被材と、を有するシート状の真空断熱材を袋状にすることで形成される開口部を有することを特徴とする。 In order to achieve the above object, the present invention is a heat insulating bag in the form of a sheet having a flexible plate-shaped core material and an outer cover material that accommodates the core material and seals it in a reduced pressure state. It is characterized by having an opening formed by making the vacuum heat insulating material into a bag shape.
　これによれば、真空断熱材により構成される断熱袋の内側と外側との間の熱の伝達が低減される。
　なお、この明細書には、２０１９年１２月２４日に出願された日本国特許出願・特願２０１９－２３３１６５号の全ての内容が含まれるものとする。 According to this, the heat transfer between the inside and the outside of the heat insulating bag made of the vacuum heat insulating material is reduced.
It should be noted that this specification shall include all the contents of the Japanese patent application / Japanese Patent Application No. 2019-233165 filed on December 24, 2019.
　本発明によれば、断熱袋の内側と外側との間の熱の伝達が真空断熱材により低減されるため、断熱袋の断熱性能を向上させることができる。 According to the present invention, the heat transfer between the inside and the outside of the heat insulating bag is reduced by the vacuum heat insulating material, so that the heat insulating performance of the heat insulating bag can be improved.
図１は、本実施形態に係る断熱袋の斜視図FIG. 1 is a perspective view of a heat insulating bag according to the present embodiment. 図２は、本実施形態の断熱袋に用いる真空断熱材の斜視図FIG. 2 is a perspective view of the vacuum heat insulating material used for the heat insulating bag of the present embodiment. 図３は、本実施形態の断熱袋の製造方法を示す説明図FIG. 3 is an explanatory view showing a method of manufacturing the heat insulating bag of the present embodiment. 図４は、本実施形態の断熱袋を備えた保温袋を示す一部破断斜視図FIG. 4 is a partially broken perspective view showing a heat insulating bag provided with the heat insulating bag of the present embodiment.
　第１の発明は、断熱袋であって、可撓性を有する板状の芯材と、前記芯材を収容し減圧状態で密封する外被材と、を有するシート状の真空断熱材を袋状にすることで形成される開口部を有することを特徴とする。
　これによれば、真空断熱材により構成される断熱袋の内側と外側との間の熱の伝達が低減され、断熱袋の断熱性能を向上させることができる。 The first invention is a heat insulating bag, which is a sheet-shaped vacuum heat insulating material having a flexible plate-shaped core material and an outer cover material that accommodates the core material and seals it in a reduced pressure state. It is characterized by having an opening formed by forming the shape.
According to this, the heat transfer between the inside and the outside of the heat insulating bag made of the vacuum heat insulating material is reduced, and the heat insulating performance of the heat insulating bag can be improved.
　第２の発明は、前記真空断熱材は矩形状であり、前記真空断熱材の一辺と前記一辺に対向する他辺とに交差する直線に沿って、前記真空断熱材の略中央で折り曲げられる。
　これによれば、真空断熱材を容易に袋状に成形できる。また、真空断熱材が折り曲げられるので、断熱袋の底面が真空断熱材で形成される。したがって、断熱袋の断熱性能を更に向上させることができる。 In the second invention, the vacuum heat insulating material has a rectangular shape, and is bent at substantially the center of the vacuum heat insulating material along a straight line intersecting one side of the vacuum heat insulating material and the other side facing the one side.
According to this, the vacuum heat insulating material can be easily formed into a bag shape. Further, since the vacuum heat insulating material is bent, the bottom surface of the heat insulating bag is formed of the vacuum heat insulating material. Therefore, the heat insulating performance of the heat insulating bag can be further improved.
　第３の発明は、前記真空断熱材は、前記芯材の外側に前記外被材で形成される非断熱部を有し、折り曲げられることにより互いに対向する前記非断熱部が重ねて折り畳まれて前記外被材の外面に接着される。
　これによれば、断熱袋の側面において２重の非断熱部が折り曲げられて外被材の外面に接着されるため、断熱袋の側面における断熱性能を向上させることができる。したがって、断熱袋の断熱性能を更に向上させることができる。 In the third invention, the vacuum heat insulating material has a non-insulating portion formed of the outer cover material on the outside of the core material, and the non-insulating portions facing each other are overlapped and folded by being bent. It is adhered to the outer surface of the jacket material.
According to this, since the double non-insulating portion is bent on the side surface of the heat insulating bag and adhered to the outer surface of the outer cover material, the heat insulating performance on the side surface of the heat insulating bag can be improved. Therefore, the heat insulating performance of the heat insulating bag can be further improved.
　第４の発明は、前記真空断熱材の前記開口部を形成する前記非断熱部が、前記外被材の外側に向けて折られて、前記外被材の外面に接着される。
　これによれば、開口部の内側を平滑に形成することができるため、断熱袋への物品の出し入れが容易となる。 In the fourth invention, the non-insulating portion forming the opening of the vacuum heat insulating material is folded toward the outside of the jacket material and adhered to the outer surface of the jacket material.
According to this, since the inside of the opening can be formed smoothly, it becomes easy to put the article in and out of the heat insulating bag.
　第５の発明は、保温袋であって、前記断熱袋を内部に収納して保護する保護袋を備え、前記断熱袋は、前記開口部の開口の方向が前記保護袋の開口の方向と一致するように、前記保護袋内に接着されている。
　これによれば、断熱袋を用いて保温性の高い保温袋を提供できる。また、断熱袋の真空断熱材が保護袋により保護される。したがって、断熱袋の損傷を抑制することができる。 A fifth invention is a heat insulating bag, comprising a protective bag that houses and protects the heat insulating bag, and the heat insulating bag has an opening in which the opening direction coincides with the opening direction of the protective bag. As such, it is adhered to the inside of the protective bag.
According to this, it is possible to provide a heat-retaining bag having high heat-retaining property by using a heat-insulating bag. In addition, the vacuum heat insulating material of the heat insulating bag is protected by the protective bag. Therefore, damage to the heat insulating bag can be suppressed.
　第６の発明は、断熱袋の製造方法であって、可撓性を有する板状の芯材と、前記芯材を収容し減圧状態で密封する外被材と、を有する矩形状に形成されたシート状の真空断熱材を、前記真空断熱材の一辺と前記一辺に対向する他辺とに交差する直線に沿って、前記真空断熱材の略中央で折り曲げ、折り曲げた後、前記芯材の外側に前記外被材で形成される非断熱部を接着して袋状に形成する。
　これによれば、真空断熱材を折り曲げて、断熱袋を製造できるため、断熱袋の断熱性能を向上させることができると共に、断熱袋を容易に製造することができる。 The sixth invention is a method for manufacturing a heat insulating bag, which is formed in a rectangular shape having a flexible plate-shaped core material and an outer cover material that accommodates the core material and seals it in a reduced pressure state. The sheet-shaped vacuum heat insulating material is bent at substantially the center of the vacuum heat insulating material along a straight line intersecting one side of the vacuum heat insulating material and the other side facing the one side, and then the core material is bent. The non-insulating portion formed of the jacket material is adhered to the outside to form a bag shape.
According to this, since the vacuum heat insulating material can be bent to manufacture the heat insulating bag, the heat insulating performance of the heat insulating bag can be improved and the heat insulating bag can be easily manufactured.
　以下、本発明の実施の形態について、図面を参照して説明する。
　図１は、本発明に係る断熱袋の実施の形態を示す斜視図である。図２は本実施の形態の断熱袋に用いる真空断熱材の斜視図である。
　なお、図２においては、説明の便宜上、真空断熱材１１の芯材１３の厚みを実物と比較して大きく表している。
　図１に示すように、本実施の形態における断熱袋１は、図１において両側辺３，４、底部５および外面６，７をそれぞれ有し、上部に開口部２を有する袋状に構成された本体８を備えている。
　断熱袋１は、開口部２を介して本体８の内部に、例えば、食品などの物品を収納して保温するものである。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view showing an embodiment of a heat insulating bag according to the present invention. FIG. 2 is a perspective view of the vacuum heat insulating material used for the heat insulating bag of the present embodiment.
In FIG. 2, for convenience of explanation, the thickness of the core material 13 of the vacuum heat insulating material 11 is shown larger than that of the actual product.
As shown in FIG. 1, the heat insulating bag 1 in the present embodiment is configured in the shape of a bag having side sides 3 and 4, bottom 5 and outer surfaces 6 and 7 in FIG. 1 and having an opening 2 in the upper part. It is equipped with a main body 8.
The heat insulating bag 1 stores, for example, an article such as food and keeps it warm inside the main body 8 through the opening 2.
　図２に示すように、断熱袋１を形成する真空断熱材１１は、外被材１２と、芯材１３と、水分吸着材１４とを備える。
　外被材１２は、平面視で矩形状を有しており、外被材１２は、１辺が開放された袋状に形成されている。
　外被材は、真空断熱材１１の内部に外気が侵入することを抑制し、屈曲性を有するものであればよい。外被材１２は、例えば、熱溶着フィルムと、中間層としてのガスバリアフィルムと、最外層として表面保護フィルムとを、それぞれラミネートしたものを用いることができる。 As shown in FIG. 2, the vacuum heat insulating material 11 forming the heat insulating bag 1 includes an outer cover material 12, a core material 13, and a moisture adsorbent 14.
The outer cover material 12 has a rectangular shape in a plan view, and the outer cover material 12 is formed in a bag shape with one side open.
The outer cover material may be any material that suppresses the intrusion of outside air into the vacuum heat insulating material 11 and has flexibility. As the outer cover material 12, for example, a heat-welded film, a gas barrier film as an intermediate layer, and a surface protective film as the outermost layer can be laminated.
　熱溶着フィルムとしては特に指定するものではないが、低密度ポリエチレンフィルムなどの樹脂フィルを用いることができる。
　ガスバリアフィルムとしては、ガスバリア性を有する公知のフィルムを好適に用いることができる。本実施形態においては、断熱袋１の内側となる真空断熱材１１の上面には、ガスバリアフィルムとして樹脂フィルムにアルミを蒸着させたものを用い、断熱袋１の外側となる真空断熱材１１の下面にはガスバリアフィルムとしてアルミニウム箔を用いている。 Although not particularly specified as the heat welding film, a resin fill such as a low density polyethylene film can be used.
As the gas barrier film, a known film having a gas barrier property can be preferably used. In the present embodiment, the upper surface of the vacuum heat insulating material 11 which is the inside of the heat insulating bag 1 is a gas barrier film in which aluminum is vapor-deposited on a resin film, and the lower surface of the vacuum heat insulating material 11 which is the outside of the heat insulating bag 1 is used. Aluminum foil is used as the gas barrier film.
　また、本実施の形態では、熱溶着フィルムとしては特に指定するものではないが、低密度ポリエチレンフィルム、直鎖低密度ポリエチレンフィルム、高密度ポリエチレンフィルム、ポリプロピレンフィルム、ポリアクリロニトリルフィルム、エチレン－ビニルアルコール共重合体フィルム等の熱可塑性樹脂、或いはそれらの混合体を使用できる。
　また、本実施の形態では、ガスバリアフィルムとしては、例えば、アルミニウム箔、銅箔、ステンレス箔等の金属箔；基材となる樹脂フィルムに対して金属または無機酸化物等を蒸着した蒸着層を有する蒸着フィルム；この蒸着フィルムの表面にさらに公知のコーティング処理を施したフィルム（コーティング蒸着フィルム）；等が挙げられるが特に限定されない。
　蒸着フィルムまたはコーティング蒸着フィルムに用いられる金属または無機酸化物としては、アルミニウム、銅、アルミナ、シリカ等を挙げることができるが、特に限定されない。また、蒸着フィルムまたはコーティング蒸着フィルムの基材となる樹脂フィルムを構成する樹脂としては、ポリエチレンテレフタレート（ＰＥＴ）、エチレン－ビニルアルコール共重合体（ＥＶＯＨ）等を挙げることができるが、特に限定されない。なお、この樹脂フィルムは、樹脂のみで構成されてもよいし、樹脂以外の成分を含む樹脂組成物として構成されてもよい。ガスバリアフィルムが金属箔で構成される場合には、この金属箔に対して樹脂層等が積層されてもよい。したがって、ガスバリアフィルムは単層構造であってもよいし多層構造であってもよい。
　ここで、ガスバリアフィルムの厚さは特に限定されず、これらガスバリアフィルムの材質等に応じてガスバリア性を発揮できる範囲の厚さであればよい。
　ここで、本実施形態におけるガスバリアフィルムのガスバリアは、おおよそ、気体透過度が１０４［ｃｍ３／ｍ２・ｄａｙ・ａｔｍ］以下のものであればよく、望ましくは１０３［ｃｍ３／ｍ２・ｄａｙ・ａｔｍ］以下のものであればよく、より望ましくは１０２［ｃｍ３／ｍ２・ｄａｙ・ａｔｍ］以下のものであればよい。
　表面保護フィルムとしては、ナイロンフィルム、ポリエチレンテレフタレートフィルム、ポリプロピレンフィルム等を使用できる。 Further, in the present embodiment, the heat-welded film is not particularly specified, but the low-density polyethylene film, the linear low-density polyethylene film, the high-density polyethylene film, the polypropylene film, the polyacrylonitrile film, and the ethylene-vinyl alcohol are all used. A thermoplastic resin such as a polymer film or a mixture thereof can be used.
Further, in the present embodiment, the gas barrier film includes, for example, a metal foil such as an aluminum foil, a copper foil, or a stainless steel foil; a vapor-deposited layer in which a metal or an inorganic oxide is vapor-deposited on a resin film as a base material. A vapor-deposited film; a film in which the surface of the vapor-deposited film is further subjected to a known coating treatment (coated vapor-deposited film); and the like are not particularly limited.
Examples of the metal or inorganic oxide used in the vapor-deposited film or the coated vapor-deposited film include aluminum, copper, alumina, silica, and the like, but are not particularly limited. Further, examples of the resin constituting the vapor-deposited film or the resin film used as the base material of the coated vapor-deposited film include polyethylene terephthalate (PET) and ethylene-vinyl alcohol copolymer (EVOH), but are not particularly limited. The resin film may be composed of only a resin, or may be composed of a resin composition containing a component other than the resin. When the gas barrier film is made of a metal foil, a resin layer or the like may be laminated on the metal foil. Therefore, the gas barrier film may have a single-layer structure or a multi-layer structure.
Here, the thickness of the gas barrier film is not particularly limited, and may be a thickness within a range in which the gas barrier property can be exhibited depending on the material of the gas barrier film and the like.
Here, the gas barrier of the gas barrier film in the present embodiment may have a gas permeability of 104 [cm3 / m2 · day · atm] or less, preferably 103 [cm3 / m2 · day · atm] or less. It may be any one, more preferably 102 [cm3 / m2 · day · atm] or less.
As the surface protective film, a nylon film, a polyethylene terephthalate film, a polypropylene film or the like can be used.
　芯材１３は、平面視で矩形状を有している。
　芯材１３は、例えば、チョップドストランドマットを積層してシート状に形成される。チョップドストランドマットは、ガラス繊維のストランドを、カットし、繊維方向を不規則にして均一に分散させ、結合剤を用いてシート状に成形したものである。
　なお、本実施形態においては、芯材１３は、例えば、厚さが０．５ｍｍのチョップドストランドマットを積層して形成され、減圧状態での厚さが、例えば、２ｍｍ～３ｍｍとなるように形成されている。
　チョップドストランドマットを積層した芯材１３を用いることによって、芯材１３の繊維方向が芯材１３の厚み方向と直交し、芯材１３の厚み方向に熱が伝達され難くなる。すなわち、芯材１３の熱伝達率を低減させることができる。
　また、減圧状態での芯材１３の厚さを２ｍｍ～３ｍｍとすることによって、可撓性を有する真空断熱材１１を構成することができる。 The core material 13 has a rectangular shape in a plan view.
The core material 13 is formed in a sheet shape by laminating, for example, chopped strand mats. The chopped strand mat is obtained by cutting a strand of glass fiber, irregularly dispersing the fiber direction, and forming it into a sheet shape using a binder.
In the present embodiment, the core material 13 is formed by laminating, for example, chopped strand mats having a thickness of 0.5 mm, and is formed so that the thickness under reduced pressure is, for example, 2 mm to 3 mm. Has been done.
By using the core material 13 in which the chopped strand mats are laminated, the fiber direction of the core material 13 is orthogonal to the thickness direction of the core material 13, and it becomes difficult for heat to be transferred in the thickness direction of the core material 13. That is, the heat transfer coefficient of the core material 13 can be reduced.
Further, by setting the thickness of the core material 13 under reduced pressure to 2 mm to 3 mm, the flexible vacuum heat insulating material 11 can be formed.
　また、芯材１３としては、チョップドストランドマットに限定されず、断熱性を有し、可撓性を有するものであればいずれの材料を用いるようにしてもよい。
　具体的には、繊維材料、発泡材料等の公知の材料を挙げることができる。無機繊維では、例えば、ガラス繊維、セラミック繊維、スラグウール繊維、ロックウール繊維等を挙げることができる。また、芯材１３は板状に成形して用いてもよいため、これら無機繊維以外に、公知のバインダ材、粉体等を含んでもよい。
　無機繊維以外で芯材１３として用いることができる材料としては、熱硬化性発泡体を挙げることができる。熱硬化性発泡体は、熱硬化性樹脂またはこれを含む樹脂組成物（熱硬化性樹脂組成物）を公知の方法で発泡させて形成されるものであればよい。熱硬化性樹脂としては、具体的には、例えば、エポキシ樹脂、フェノール樹脂、不飽和ポリエステル樹脂、ユリア樹脂、メラミン樹脂、ポリイミド、ポリウレタン等を挙げることができるが、特に限定されない。また、発泡方法も特に限定されず、公知の発泡剤を用いて公知の条件で発泡させればよい。また、無機繊維、及び熱硬化性発泡体以外で芯材１３として使用可能な材料としては、公知の有機繊維（有機系材料からなる繊維）を挙げることができるが、その具体的な種類は特に限定されない。 Further, the core material 13 is not limited to the chopped strand mat, and any material may be used as long as it has heat insulating properties and is flexible.
Specific examples thereof include known materials such as fiber materials and foam materials. Examples of the inorganic fiber include glass fiber, ceramic fiber, slag wool fiber, rock wool fiber and the like. Further, since the core material 13 may be molded into a plate shape and used, a known binder material, powder or the like may be contained in addition to these inorganic fibers.
Examples of the material other than the inorganic fiber that can be used as the core material 13 include a thermosetting foam. The thermosetting foam may be formed by foaming a thermosetting resin or a resin composition containing the same (thermosetting resin composition) by a known method. Specific examples of the thermosetting resin include epoxy resin, phenol resin, unsaturated polyester resin, urea resin, melamine resin, polyimide, polyurethane, and the like, but are not particularly limited. Further, the foaming method is not particularly limited, and foaming may be performed using a known foaming agent under known conditions. In addition to inorganic fibers and thermosetting foams, examples of materials that can be used as the core material 13 include known organic fibers (fibers made of organic materials), and the specific types thereof are particularly specific. Not limited.
　水分吸着材１４は、外被材１２内の水分を吸着して、真空断熱材１１の断熱性能を維持する。
　水分吸着材１４は、芯材１３とともに外被材１２の内部に封入され、外被材１２の内部、すなわち真空断熱構造の内部に残存する水分、もしくは、外部から経時的に透過侵入する水分を吸着して除去するものである。 The moisture adsorbent 14 adsorbs the moisture in the outer cover material 12 to maintain the heat insulating performance of the vacuum heat insulating material 11.
The moisture adsorbent 14 is sealed inside the outer cover material 12 together with the core material 13, and the moisture remaining inside the outer cover material 12, that is, the inside of the vacuum heat insulating structure, or the moisture that permeates and invades from the outside over time. It is adsorbed and removed.
　また、本実施の形態では、水分吸着材１４の具体的な種類は特に限定されず、代表的には、シリカゲル、活性アルミナ、活性炭、金属系吸着材、ゼオライト等のように物理的な水分吸着性を発揮する材料（物理吸着剤）を挙げることができる。さらには、水分吸着材としては、例えば、アルカリ金属、アルカリ土類金属の酸化物または水酸化物等のように化学的な水分吸着性を発揮する材料（化学吸着剤）を挙げることができる。これら材料は１種のみを水分吸着材１４として用いてもよいし、２種以上を適宜組み合わせて水分吸着材１４として用いてもよい。 Further, in the present embodiment, the specific type of the moisture adsorbent 14 is not particularly limited, and typically, physical moisture adsorption such as silica gel, activated alumina, activated carbon, metal adsorbent, zeolite and the like. Examples of materials (physical adsorbents) that exhibit their properties. Further, examples of the water adsorbent include materials (chemical adsorbents) that exhibit chemical water adsorbability, such as alkali metals, oxides of alkaline earth metals, and hydroxides. Only one of these materials may be used as the water adsorbent 14, or two or more of these materials may be appropriately combined and used as the water adsorbent 14.
　また、水分吸着材１４とともに、外被材１２の内部に気体吸着材を封入してもよい。気体吸着材は、外被材１２の内部、すなわち真空断熱構造の内部に残存する気体成分、もしくは、外部から経時的に透過侵入する気体成分を吸着して除去するものであればよい。ここで、気体吸着材は、少なくとも気体吸着性を有していればよいが、気体吸着性だけでなく水分吸着性を有してもよい。気体吸着材の水分吸着性は、基本的には、水蒸気を吸着する性質であり、気体吸着性の一部とみなすことができる。
　気体吸着材の具体的な種類は特に限定されず、前述した水分吸着材１４と同様に、シリカゲル、活性アルミナ、活性炭、金属系吸着材、ゼオライト等の公知の材料を好適に用いることができる。これら材料は１種のみを気体吸着材として用いてもよいし、２種以上を適宜組み合わせて気体吸着材として用いてもよい。特に、本開示においては、気体吸着材として、銅イオン交換されて成るＺＳＭ－５型ゼオライト（銅イオン交換ＺＳＭ－５型ゼオライト）を好適に用いることができる。 Further, the gas adsorbent may be sealed inside the outer cover material 12 together with the moisture adsorbent 14. The gas adsorbent may be any material that adsorbs and removes the gas component remaining inside the outer cover material 12, that is, the inside of the vacuum heat insulating structure, or the gas component that permeates and penetrates from the outside over time. Here, the gas adsorbent may have at least gas adsorbability, but may have not only gas adsorbability but also water adsorbability. The water adsorbability of the gas adsorbent is basically a property of adsorbing water vapor, and can be regarded as a part of the gas adsorbability.
The specific type of the gas adsorbent is not particularly limited, and as with the moisture adsorbent 14 described above, known materials such as silica gel, activated alumina, activated carbon, metal adsorbent, and zeolite can be preferably used. Only one of these materials may be used as a gas adsorbent, or two or more of these materials may be appropriately combined and used as a gas adsorbent. In particular, in the present disclosure, ZSM-5 type zeolite (copper ion exchange ZSM-5 type zeolite) formed by copper ion exchange can be preferably used as the gas adsorbent.
　銅イオン交換ＺＳＭ－５型ゼオライトは、空気成分である窒素、及び酸素だけでなく、水分（水蒸気）に対しても優れた吸着能力を有する。そのため、気体吸着材が銅イオン交換ＺＳＭ－５型ゼオライトを用いたものであれば、水分吸着材１４を兼用することができるので、真空断熱材１１の製造時に真空ポンプでは排気しきれなかった空気成分、真空断熱材１１の内部で経時的に発生する微量なガス、真空断熱材１１の外部から内部へ経時的に透過侵入してくる空気成分または水分等を良好に吸着除去することができる。その結果、真空断熱材１１は優れた断熱性能を長期間実現することができる。
　水分吸着材１４、及び気体吸着材の使用形態は特に限定されず、粉末、粉末の包装体、粉末の成形体等が挙げられる。気体吸着材が銅イオン交換ＺＳＭ－５型ゼオライトであれば、粉末を所定形状に成形した成形体を挙げることができる。水分吸着材１４、及び気体吸着材の使用量も特に限定されず、真空断熱材１１の外被材１２内部における減圧状態（略真空状態）を良好に保持できる程度の量であればよい。 Copper ion exchange ZSM-5 type zeolite has excellent adsorption ability not only for nitrogen and oxygen, which are air components, but also for water (water vapor). Therefore, if the gas adsorbent uses copper ion exchange ZSM-5 type zeolite, the moisture adsorbent 14 can also be used, so that the air that could not be exhausted by the vacuum pump during the production of the vacuum heat insulating material 11 can be used. It is possible to satisfactorily adsorb and remove components, a small amount of gas generated inside the vacuum heat insulating material 11 over time, an air component or moisture that permeates and invades from the outside to the inside of the vacuum heat insulating material 11 over time. As a result, the vacuum heat insulating material 11 can realize excellent heat insulating performance for a long period of time.
The form of use of the water adsorbent 14 and the gas adsorbent is not particularly limited, and examples thereof include powder, a powder package, and a powder molded product. If the gas adsorbent is a copper ion-exchanged ZSM-5 type zeolite, a molded product obtained by molding powder into a predetermined shape can be mentioned. The amount of the moisture adsorbent 14 and the gas adsorbent used is not particularly limited, and may be an amount that can satisfactorily maintain the reduced pressure state (substantially vacuum state) inside the jacket material 12 of the vacuum heat insulating material 11.
　そして、外被材１２の内部略中央部に芯材１３、及び水分吸着材１４を収納した状態で、外被材１２の内部を減圧した後、外被材１２の開口を熱溶着などにより閉塞することで、内部が減圧状態とされた真空断熱材１１を得ることができる。
　真空断熱材１１には、芯材１３の外側の領域に、外被材１２同士が減圧により密着してなり、芯材１３が存在しない非断熱部２０が形成される。
　非断熱部２０は、真空断熱材１１の長手方向に沿って延在する側部非断熱部２４，２５と、側部非断熱部２４，２５と直交する方向に延在する端部非断熱部２１、２２と、で構成されている。 Then, with the core material 13 and the moisture adsorbent 14 housed in the substantially central portion inside the outer cover material 12, the inside of the outer cover material 12 is depressurized, and then the opening of the outer cover material 12 is closed by heat welding or the like. By doing so, it is possible to obtain the vacuum heat insulating material 11 whose inside is in a reduced pressure state.
In the vacuum heat insulating material 11, the outer cover materials 12 are brought into close contact with each other by reducing pressure in the outer region of the core material 13, and the non-heat insulating portion 20 in which the core material 13 does not exist is formed.
The non-insulated portion 20 is a side non-insulated portion 24, 25 extending along the longitudinal direction of the vacuum heat insulating material 11 and an end non-insulated portion extending in a direction orthogonal to the side non-insulated portion 24, 25. It is composed of 21 and 22.
　次に、断熱袋の製造方法について説明する。
　図３は本実施形態の断熱袋１の製造方法を示す説明図である。
　図３に示すように、真空断熱材１１は、工程Ａ～工程Ｄにより、断熱袋１に形成される。
　工程Ａにおいて、真空断熱材１１は、図２に示した状態から、端部非断熱部２１，２２をそれぞれ真空断熱材１１の下方に向けて折り曲げ、真空断熱材１１の芯材１３が存在する箇所の外面に接着する。
　続いて、工程Ｂ及び工程Ｃにおいて、真空断熱材１１の右辺１２ａと右辺１２ａに対向する他辺である左辺１２ｂとに交差する直線である二等分線１２ｃに沿って、真空断熱材１１の略中央で、略１８０°折り曲げる。真空断熱材１１の折り曲げ方向は、端部非断熱部２１，２２をそれぞれ接着した面が外側に向く方向となる。
　この状態で、真空断熱材１１の側部非断熱部２４，２５が互いに重ね合わされた状態に保持される。
　なお、真空断熱材１１の折り曲げ方を示すために、便宜上、真空断熱材１１を折り曲げる工程を工程Ｂ、及び工程Ｃの２つに分けて示している。 Next, a method of manufacturing the heat insulating bag will be described.
FIG. 3 is an explanatory diagram showing a method of manufacturing the heat insulating bag 1 of the present embodiment.
As shown in FIG. 3, the vacuum heat insulating material 11 is formed in the heat insulating bag 1 by the steps A to D.
In the step A, the vacuum heat insulating material 11 bends the end non-heat insulating parts 21 and 22 toward the lower side of the vacuum heat insulating material 11 from the state shown in FIG. 2, and the core material 13 of the vacuum heat insulating material 11 exists. Adhere to the outer surface of the location.
Subsequently, in the steps B and C, the vacuum heat insulating material 11 is formed along the bisection line 12c which is a straight line intersecting the right side 12a of the vacuum heat insulating material 11 and the left side 12b which is the other side facing the right side 12a. Bend approximately 180 ° at approximately the center. The bending direction of the vacuum heat insulating material 11 is such that the surfaces to which the end non-heat insulating portions 21 and 22 are bonded face outward.
In this state, the side non-insulating portions 24 and 25 of the vacuum heat insulating material 11 are held in a state of being overlapped with each other.
In order to show how to bend the vacuum heat insulating material 11, for convenience, the process of bending the vacuum heat insulating material 11 is divided into two steps, step B and step C.
　次に、工程Ｄにおいて、互いに重ね合わされた側部非断熱部２４，２５の内、一方の側部非断熱部２４を真空断熱材１１の一面側に折り曲げて接着する。また、他方の側部側非断熱部２５を真空断熱材１１の他面側に折り曲げて接着する。
　これらの工程により、図１に示すように、真空断熱材１１の折り曲げにより底部５が形成されるとともに、側部非断熱部２４，２５の接着により両側辺３，４が形成され、開口部２を有する袋状の断熱袋１を製造することができる。
　なお、端部非断熱部２１、２２及び側部非断熱部２４、２５の接着は、例えば、粘着テープで接着することにより行われる。このように、粘着テープで接着することにより、端部非断熱部２１、２２及び側部非断熱部２４、２５を折り曲げて接着する際に生じる段差が、粘着テープにより被覆されるため、断熱袋１の外面を滑らに形成することができる。
　ただし、これに限定されるものではなく、接着剤や溶着等を用いてもよい。 Next, in step D, one of the side non-insulating portions 24 and 25 overlapped with each other is bent and bonded to one side of the vacuum heat insulating material 11. Further, the other side non-insulating portion 25 is bent and adhered to the other surface side of the vacuum heat insulating material 11.
By these steps, as shown in FIG. 1, the bottom portion 5 is formed by bending the vacuum heat insulating material 11, and the side portions 3 and 4 are formed by adhering the side non-insulating portions 24 and 25, so that the opening 2 is formed. The bag-shaped heat insulating bag 1 having the above can be manufactured.
The end non-insulating portions 21 and 22 and the side non-insulating portions 24 and 25 are adhered by, for example, adhering with an adhesive tape. In this way, by adhering with the adhesive tape, the steps generated when the end non-insulating portions 21 and 22 and the side non-insulating portions 24 and 25 are bent and adhered are covered with the adhesive tape, so that the heat insulating bag is used. The outer surface of 1 can be formed smoothly.
However, the present invention is not limited to this, and an adhesive, welding, or the like may be used.
　本実施の形態においては、端部非断熱部２１，２２を真空断熱材１１の外側に接着するようにしたが、端部非断熱部２１，２２を真空断熱材１１の内側に接着するようにしてもよい。
　また、各側部非断熱部２４，２５を真空断熱材１１の一面及び他面にそれぞれ接着するようにしたが、各側部非断熱部２４，２５を真空断熱材１１の同じ面にそれぞれ接着するようにしてもよい。
　また、断熱袋１を製造する場合に、一方の側部非断熱部２４を折り曲げて真空断熱材１１に接着した状態で、真空断熱材１１を二等分線１２ｃに沿って折り曲げ、他方の側部非断熱部２５、及び端部非断熱部２１を折り曲げて真空断熱材１１に接着することで、一方の側部非断熱部２４に開口が形成された袋状に形成するようにしてもよい。 In the present embodiment, the end non-insulating portions 21 and 22 are adhered to the outside of the vacuum heat insulating material 11, but the end non-insulating portions 21 and 22 are adhered to the inside of the vacuum heat insulating material 11. You may.
Further, the side non-insulating portions 24 and 25 are adhered to one surface and the other surface of the vacuum heat insulating material 11, respectively, but the side non-insulating portions 24 and 25 are adhered to the same surface of the vacuum heat insulating material 11, respectively. You may try to do it.
Further, when manufacturing the heat insulating bag 1, the vacuum heat insulating material 11 is bent along the bisection line 12c in a state where one side non-heat insulating portion 24 is bent and adhered to the vacuum heat insulating material 11, and the other side is manufactured. By bending the portion non-insulating portion 25 and the end non-insulating portion 21 and adhering them to the vacuum heat insulating material 11, a bag shape having an opening formed in one side portion non-insulating portion 24 may be formed. ..
　次に、断熱袋１を用いた保温袋５１について説明する。
　図４は本実施形態の断熱袋１を備えた保温袋５１を示す一部破断斜視図である。
　図４に示すように、保温袋５１は、断熱袋１を内部に収納して保護する保護袋５３を備える。
　保護袋５３は一辺に開口５２が形成された矩形の袋状に形成されている。保護袋５３の内面の幅寸法は、断熱袋１の幅寸法と略同一に形成されている。
　保護袋５３の内底部５５から開口５２までの長さは、断熱袋１の底部５から開口部２までの長さよりも長く形成されている。
　なお、保護袋５３は、具体的な構成が特に限定されないが、クッション性を備えるシートにより構成されるとともに可撓性を有し、断熱袋１を保護可能に構成されている袋体を挙げることができる。例えば、アルミ蒸着ポリエチレンテレフタレートフィルムと、発泡ポリエチレンシートと、高密度ポリエチレンフィルムと、を積層し厚み約１～２ｍｍのシートを利用して保護袋５３を形成することができる。 Next, the heat insulating bag 51 using the heat insulating bag 1 will be described.
FIG. 4 is a partially broken perspective view showing a heat insulating bag 51 provided with the heat insulating bag 1 of the present embodiment.
As shown in FIG. 4, the heat insulating bag 51 includes a protective bag 53 that houses and protects the heat insulating bag 1 inside.
The protective bag 53 is formed in the shape of a rectangular bag having an opening 52 formed on one side. The width dimension of the inner surface of the protective bag 53 is formed to be substantially the same as the width dimension of the heat insulating bag 1.
The length from the inner bottom portion 55 to the opening 52 of the protective bag 53 is formed to be longer than the length from the bottom portion 5 to the opening 2 of the heat insulating bag 1.
The specific configuration of the protective bag 53 is not particularly limited, but examples thereof include a bag body formed of a cushioning sheet and having flexibility so as to protect the heat insulating bag 1. Can be done. For example, a protective bag 53 can be formed by laminating an aluminum-deposited polyethylene terephthalate film, a foamed polyethylene sheet, and a high-density polyethylene film and using a sheet having a thickness of about 1 to 2 mm.
　保護袋５３の内部には、断熱袋１が開口部２の開口方向を、保護袋５３の開口５２の開口方向と一致するよう収納される。
　そして、断熱袋１の底部５を保護袋５３の内底部５５に当接させた状態で、断熱袋１と保護袋５３とを接着し、断熱袋１と保護袋５３とを固定する。
　断熱袋１と保護袋５３との接着は、例えば、断熱袋１の開口部２の外周に貼られた両面テープ５７により行われる。なお、断熱袋１と保護袋５３とを接着剤により接着してもよい。
　保護袋５３に断熱袋１を接着した状態で、保護袋５３の断熱袋１よりも長い部分は、折り畳み部５６とされ、折り畳み部５６は、保護袋５３内に断熱袋１を収納した状態で、折り畳み可能である。 Inside the protective bag 53, the heat insulating bag 1 is stored so that the opening direction of the opening 2 coincides with the opening direction of the opening 52 of the protective bag 53.
Then, in a state where the bottom portion 5 of the heat insulating bag 1 is in contact with the inner bottom portion 55 of the protective bag 53, the heat insulating bag 1 and the protective bag 53 are adhered to each other, and the heat insulating bag 1 and the protective bag 53 are fixed.
The heat insulating bag 1 and the protective bag 53 are adhered to each other by, for example, a double-sided tape 57 attached to the outer periphery of the opening 2 of the heat insulating bag 1. The heat insulating bag 1 and the protective bag 53 may be adhered with an adhesive.
In a state where the heat insulating bag 1 is adhered to the protective bag 53, a portion of the protective bag 53 longer than the heat insulating bag 1 is a folding portion 56, and the folding portion 56 is a state in which the heat insulating bag 1 is stored in the protective bag 53. , Can be folded.
　次に、本実施の形態の作用について説明する。
　断熱袋１に物品を挿入する場合に、開口部２が開かれ断熱袋１の内部に物品が挿入される。
　この場合に、端部非断熱部２１、及び端部非断熱部２２のそれぞれが、開口部２の外側に折り曲げられているため、開口部２の内側を平滑に形成することができ、断熱袋１の内側への物品の出し入れを円滑に行うことができる。 Next, the operation of this embodiment will be described.
When the article is inserted into the heat insulating bag 1, the opening 2 is opened and the article is inserted into the heat insulating bag 1.
In this case, since each of the end non-insulated portion 21 and the end non-insulated portion 22 is bent to the outside of the opening 2, the inside of the opening 2 can be formed smoothly, and the heat insulating bag can be formed smoothly. Goods can be smoothly taken in and out of 1.
　また、芯材１３の厚さを２ｍｍ～３ｍｍ程度に薄く形成しているので、断熱袋１が撓みやすく、収納される物品の形状に応じて断熱袋１を容易に変形させることができ、断熱袋１への物品の出し入れを容易に行うことができる。
　また、断熱袋１が撓んで、収納された物に合わせて変形されるので、断熱袋１内の空間に存在する気体を少なくすることができ、断熱袋１の保温性を向上させることができる。 Further, since the thickness of the core material 13 is formed as thin as about 2 mm to 3 mm, the heat insulating bag 1 is easily bent, and the heat insulating bag 1 can be easily deformed according to the shape of the article to be stored. Goods can be easily put in and taken out of the bag 1.
Further, since the heat insulating bag 1 is bent and deformed according to the stored object, the amount of gas existing in the space inside the heat insulating bag 1 can be reduced, and the heat retention of the heat insulating bag 1 can be improved. ..
　真空断熱材１１により物品が覆われるため、物品への熱の伝達が低減される。断熱袋１の底部５も真空断熱材１１であるため、底部５からの熱の伝達を抑制することができる。
　また、真空断熱材１１が折り曲げられる部分は底部５のみであり、真空断熱材１１を容易に袋状に成形できる。 Since the article is covered with the vacuum heat insulating material 11, heat transfer to the article is reduced. Since the bottom 5 of the heat insulating bag 1 is also the vacuum heat insulating material 11, heat transfer from the bottom 5 can be suppressed.
Further, the portion where the vacuum heat insulating material 11 is bent is only the bottom portion 5, and the vacuum heat insulating material 11 can be easily formed into a bag shape.
　断熱袋１の両側辺３，４において、外被材１２の側部側非断熱部２４，２５を２枚に重ねて覆うので、断熱袋１の側辺３，４からの空気の出入りを防ぐことができ、保温性能を向上させることができる。 Since the side non-insulating portions 24 and 25 of the outer cover material 12 are overlapped and covered on both side sides 3 and 4 of the heat insulating bag 1, air is prevented from entering and exiting from the side sides 3 and 4 of the heat insulating bag 1. It is possible to improve the heat retention performance.
　断熱袋１は、内部に物品を保持した状態で、開口部２を閉じてもよい。
　開口部２を閉じることにより、開口部２から外気が流入するのを抑制し、保温性能を向上させることも可能である。 The heat insulating bag 1 may close the opening 2 while holding the article inside.
By closing the opening 2, it is possible to suppress the inflow of outside air from the opening 2 and improve the heat retention performance.
　断熱袋１の内側のガスバリアフィルムに樹脂フィルムにアルミを蒸着させたものを用いているので、内側のガスバリアフィルムの金属層が薄く構成される。このため、ガスバリアフィルムの金属層を熱が伝わるヒートブリッジ現象が、金属箔を用いたガスバリアフィルムを用いる場合よりも低減される。 Since the gas barrier film inside the heat insulating bag 1 is made of a resin film vapor-deposited with aluminum, the metal layer of the gas barrier film inside is thinly formed. Therefore, the heat bridging phenomenon in which heat is transferred through the metal layer of the gas barrier film is reduced as compared with the case of using the gas barrier film using the metal foil.
　保護袋５３内に断熱袋１が収納されるので、断熱袋１の外面６，７が保護袋５３に覆われ、断熱袋１で生じるヒートブリッジ現象の影響を低減できる。
　開口５２を閉じて畳み部５６を折り畳むことにより、開口５２を介した保護袋５３内への空気の流入を抑制することができる。 Since the heat insulating bag 1 is housed in the protective bag 53, the outer surfaces 6 and 7 of the heat insulating bag 1 are covered with the protective bag 53, and the influence of the heat bridge phenomenon generated in the heat insulating bag 1 can be reduced.
By closing the opening 52 and folding the folding portion 56, it is possible to suppress the inflow of air into the protective bag 53 through the opening 52.
　以上説明したように、本実施の形態においては、断熱袋１は、可撓性を有する板状の芯材１３と、芯材１３を収容し減圧状態で密封する外被材１２と、で形成されるシート状の真空断熱材１１を袋状にすることで形成される開口部２を有する。
　これによれば、断熱袋１が真空断熱材１１により構成されるため、断熱袋１の内側と外側との間の熱の伝達を真空断熱材１１により低減することができ、断熱袋１の断熱性能を向上させることができる。 As described above, in the present embodiment, the heat insulating bag 1 is formed of a plate-shaped core material 13 having flexibility and an outer cover material 12 that accommodates the core material 13 and seals it in a reduced pressure state. It has an opening 2 formed by forming the sheet-shaped vacuum heat insulating material 11 to be made into a bag shape.
According to this, since the heat insulating bag 1 is composed of the vacuum heat insulating material 11, the heat transfer between the inside and the outside of the heat insulating bag 1 can be reduced by the vacuum heat insulating material 11, and the heat insulating of the heat insulating bag 1 can be reduced. Performance can be improved.
　また、本実施形態においては、真空断熱材１１は矩形状であり、真空断熱材１１の一辺である右辺１２ａと右辺１２ａに対向する他辺である左辺１２ｂとに交差する直線である二等分線１２ｃに沿って略中央で折り曲げられる。
　これによれば、真空断熱材１１を容易に袋状に成形できる。また、真空断熱材１１が中央で折り曲げられるので断熱袋１の底部５が真空断熱材１１で形成される。したがって、断熱袋１の断熱性能を更に向上させることができる。 Further, in the present embodiment, the vacuum heat insulating material 11 has a rectangular shape, and is bisected which is a straight line intersecting the right side 12a which is one side of the vacuum heat insulating material 11 and the left side 12b which is the other side facing the right side 12a. It is bent approximately in the center along the line 12c.
According to this, the vacuum heat insulating material 11 can be easily formed into a bag shape. Further, since the vacuum heat insulating material 11 is bent at the center, the bottom 5 of the heat insulating bag 1 is formed of the vacuum heat insulating material 11. Therefore, the heat insulating performance of the heat insulating bag 1 can be further improved.
　また、本実施形態においては、真空断熱材１１は、芯材１３の外側に外被材１２で形成される非断熱部２０を有し、折り曲げられることにより互いに対向する非断熱部２０の側部側非断熱部２４が重ねて折り畳まれて外被材１２の外面である外面６に接着され、折り曲げられることにより互いに対向する側部側非断熱部２５が重ねて折り畳まれて、外被材１２の外面である外面７に接着される。
　これによれば、断熱袋１の側面において２重の側部側非断熱部２４，２５が折り曲げられて外被材１２の外面に接着されるため、断熱袋１の側辺３，４における断熱性能を向上することができる。したがって、断熱袋１の断熱性能を更に向上させることができる。 Further, in the present embodiment, the vacuum heat insulating material 11 has the non-insulating portion 20 formed of the outer cover material 12 on the outside of the core material 13, and the side portions of the non-insulating portions 20 facing each other by being bent. The side non-insulating portions 24 are overlapped and folded and adhered to the outer surface 6 which is the outer surface of the outer cover material 12, and by being bent, the side non-insulating portions 25 facing each other are overlapped and folded to form the outer cover material 12. It is adhered to the outer surface 7 which is the outer surface of the.
According to this, since the double side non-insulating portions 24 and 25 are bent and adhered to the outer surface of the outer cover material 12 on the side surface of the insulating bag 1, the heat insulating on the side sides 3 and 4 of the insulating bag 1 Performance can be improved. Therefore, the heat insulating performance of the heat insulating bag 1 can be further improved.
　また、本実施形態においては、開口部２を形成する非断熱部２０である端部非断熱部２１，２２が、それぞれ外被材１２の外側に向けて折られ、外被材１２の外面である外面６，７に接着され、開口部２が形成される。
　これによれば、開口部２の内側を平滑に形成することができるため、断熱袋１への物品の出し入れが容易となる。 Further, in the present embodiment, the end non-insulating portions 21 and 22, which are the non-insulating portions 20 forming the opening 2, are each folded toward the outside of the outer cover material 12, and are formed on the outer surface of the outer cover material 12. It is adhered to certain outer surfaces 6 and 7 to form an opening 2.
According to this, since the inside of the opening 2 can be formed smoothly, it becomes easy to put the article in and out of the heat insulating bag 1.
　また、本実施形態においては、断熱袋１を内部に収納して保護する保護袋５３を備え、断熱袋１は、開口部２の開口の方向を保護袋５３の開口５２の方向と一致させて、保護袋５３内に接着されている。
　これによれば、断熱袋１を用いて保温性の高い保温袋５１を提供できる。また、断熱袋１の真空断熱材１１が保護袋５３により保護されることにより、断熱袋１の損傷を抑制することができる。 Further, in the present embodiment, the protective bag 53 for storing and protecting the heat insulating bag 1 is provided, and the heat insulating bag 1 has the opening direction of the opening 2 coincident with the direction of the opening 52 of the protective bag 53. , Adhered inside the protective bag 53.
According to this, the heat insulating bag 51 having high heat retaining property can be provided by using the heat insulating bag 1. Further, since the vacuum heat insulating material 11 of the heat insulating bag 1 is protected by the protective bag 53, damage to the heat insulating bag 1 can be suppressed.
　また、本実施形態においては、断熱袋１の製造方法であって、可撓性を有する板状の芯材１３と、芯材１３を収容し減圧状態で密封する外被材１２と、を有する矩形状に形成されたシート状の真空断熱材１１を、真空断熱材１１の一辺である右辺１２ａと右辺１２ａに対向する他辺である左辺１２ｂとに交差する直線である二等分線１２ｃに沿って、真空断熱材１１の略中央で折り曲げ、折り曲げられた後、前記芯材１３の外側に外被材１２で形成される非断熱部２０を接着して袋状に形成する。
　これによれば、真空断熱材１１を折り曲げて、断熱袋１を製造できるため、断熱袋１の断熱性能を向上できると共に、断熱袋１を容易に製造することができる。 Further, in the present embodiment, the method for manufacturing the heat insulating bag 1 includes a plate-shaped core material 13 having flexibility and an outer cover material 12 that accommodates the core material 13 and seals it in a reduced pressure state. The sheet-shaped vacuum heat insulating material 11 formed in a rectangular shape is formed into a bisection line 12c which is a straight line intersecting the right side 12a which is one side of the vacuum heat insulating material 11 and the left side 12b which is the other side facing the right side 12a. Along the line, the vacuum heat insulating material 11 is bent at substantially the center, and after being bent, the non-heat insulating portion 20 formed of the outer cover material 12 is adhered to the outside of the core material 13 to form a bag shape.
According to this, since the vacuum heat insulating material 11 can be bent to manufacture the heat insulating bag 1, the heat insulating performance of the heat insulating bag 1 can be improved and the heat insulating bag 1 can be easily manufactured.
　なお、本実施の形態は本発明を適用した一態様を示すものであって、本発明は前記実施の形態に限定されない。 It should be noted that the present embodiment shows one aspect to which the present invention is applied, and the present invention is not limited to the above-described embodiment.
　以上のように、本発明に係る断熱袋は、シート状の真空断熱材を折り曲げて袋状に形成されるものであり、容易かつ少ない製造コストで製造することができる断熱袋として好適に利用可能である。 As described above, the heat insulating bag according to the present invention is formed by bending a sheet-shaped vacuum heat insulating material into a bag shape, and can be suitably used as a heat insulating bag that can be easily manufactured at a low manufacturing cost. Is.
　１　断熱袋
　２　開口部
　３，４　側辺
　６，７　外面
　１１　真空断熱材
　１２　外被材
　１２ｃ　二等分線
　１３　芯材
　２０　非断熱部
　２１，２２　側部非断熱部
　２４，２５　端部非断熱部
　５１　保温袋
　５２　開口
　５３　保護袋 1 Insulation bag 2 Openings 3, 4 Sides 6, 7 Outer surface 11 Vacuum heat insulating material 12 Outer cover material 12c Bisection line 13 Core material 20 Non-insulated part 21, 22 Side non-insulated part 24, 25 End non-insulated Part 51 Thermal bag 52 Opening 53 Protective bag

Claims (6)

  1. 　可撓性を有する板状の芯材と、前記芯材を収容し減圧状態で密封する外被材と、を有するシート状の真空断熱材を袋状にすることで形成される開口部を有する
    　ことを特徴とする断熱袋。     It has an opening formed by forming a sheet-shaped vacuum heat insulating material having a flexible plate-shaped core material and an outer cover material that accommodates the core material and seals it in a reduced pressure state into a bag shape. The heat insulating bag is characterized by that.
  2. 　前記真空断熱材は矩形状であり、
    　前記真空断熱材の一辺と前記一辺に対向する他辺とに交差する直線に沿って、前記真空断熱材の略中央で折り曲げられる
    　ことを特徴とする請求項１に記載の断熱袋。     The vacuum heat insulating material has a rectangular shape and has a rectangular shape.
    The heat insulating bag according to claim 1, wherein the heat insulating bag is bent at substantially the center of the vacuum heat insulating material along a straight line intersecting one side of the vacuum heat insulating material and the other side facing the one side.
  3. 　前記真空断熱材は、前記芯材の外側に前記外被材で形成される非断熱部を有し、
    　折り曲げられることにより互いに対向する前記非断熱部が重ねて折り畳まれて前記外被材の外面に接着される
    　ことを特徴とする請求項２に記載の断熱袋。     The vacuum heat insulating material has a non-insulating portion formed of the jacket material on the outside of the core material.
    The heat insulating bag according to claim 2, wherein the non-insulating portions facing each other are overlapped and folded by being bent and adhered to the outer surface of the outer cover material.
  4. 　前記開口部を形成する前記非断熱部が、前記外被材の外側に向けて折り曲げられて、前記外被材の外面に接着される
    　ことを特徴とする請求項３に記載の断熱袋。     The heat insulating bag according to claim 3, wherein the non-insulating portion forming the opening is bent toward the outside of the outer cover material and adhered to the outer surface of the outer cover material.
  5. 　請求項１から請求項４のいずれか一項に記載の断熱袋を内部に収納して保護する保護袋を備え、
    　前記断熱袋は、前記開口部の開口の方向が前記保護袋の開口の方向と一致するように、前記保護袋内に接着される
    　ことを特徴とする保温袋。     A protective bag for storing and protecting the heat insulating bag according to any one of claims 1 to 4 is provided.
    The heat insulating bag is a heat insulating bag that is adhered to the inside of the protective bag so that the direction of the opening of the opening coincides with the direction of the opening of the protective bag.
  6. 　可撓性を有する板状の芯材と、前記芯材を収容し減圧状態で密封する外被材と、を有し、矩形状でシート状の真空断熱材を、
    　前記真空断熱材の一辺と前記一辺に対向する他辺とに交差する直線に沿って、前記真空断熱材の略中央で折り曲げ、
    　折り曲げられた後、前記芯材の外側に前記外被材で形成される非断熱部を接着して袋状に形成する
    　ことを特徴とする断熱袋の製造方法。     A rectangular and sheet-shaped vacuum heat insulating material having a flexible plate-shaped core material and an outer cover material that accommodates the core material and seals it in a reduced pressure state.
    Bend at approximately the center of the vacuum heat insulating material along a straight line intersecting one side of the vacuum heat insulating material and the other side facing the one side.
    A method for manufacturing a heat insulating bag, which comprises adhering a non-insulating portion formed of the outer cover material to the outside of the core material after bending to form a bag shape.
PCT/JP2020/048430 2019-12-24 2020-12-24 Heat insulation bag, heat retention bag, and method for manufacturing heat insulation bag WO2021132457A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2021567608A JP7325053B2 (en) 2019-12-24 2020-12-24 Thermal insulation bag, thermal insulation bag, and method for manufacturing thermal insulation bag
CN202080061483.XA CN114341021B (en) 2019-12-24 2020-12-24 Thermal insulation bag, and method for manufacturing thermal insulation bag

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2019-233165 2019-12-24
JP2019233165 2019-12-24

Publications (1)

Publication Number Publication Date
WO2021132457A1 true WO2021132457A1 (en) 2021-07-01

Family

ID=76573269

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2020/048430 WO2021132457A1 (en) 2019-12-24 2020-12-24 Heat insulation bag, heat retention bag, and method for manufacturing heat insulation bag

Country Status (3)

Country Link
JP (1) JP7325053B2 (en)
CN (1) CN114341021B (en)
WO (1) WO2021132457A1 (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4185673A (en) * 1978-03-13 1980-01-29 Daniello Margaret M Unitary article-carrying bag and cushion
JP2001317686A (en) * 2000-05-11 2001-11-16 Matsushita Refrig Co Ltd Vacuum insulated container
JP2005231178A (en) * 2004-02-19 2005-09-02 Sekisui Plastics Co Ltd Heat insulating bag and its production method
JP3140178U (en) * 2007-12-27 2008-03-13 株式会社オオバ Drawstring bag
JP2012163138A (en) * 2011-02-04 2012-08-30 Mitsubishi Electric Corp Vacuum thermal insulation material, and thermal insulation box
WO2019230627A1 (en) * 2018-05-31 2019-12-05 シャープ株式会社 Packing container, and method for transporting cold-storage articles

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60126571A (en) * 1983-12-08 1985-07-06 松下冷機株式会社 Heat insulator
JP4479027B2 (en) 1999-11-17 2010-06-09 パナソニック株式会社 Vacuum insulation
JP2002284256A (en) 2001-03-22 2002-10-03 Toho Gas Co Ltd Heat insulating bag for heated asphalt mixture
JP4549565B2 (en) 2001-03-29 2010-09-22 大日本印刷株式会社 bag
JP4774628B2 (en) 2001-05-18 2011-09-14 大日本印刷株式会社 bag
JP2003172493A (en) 2001-12-06 2003-06-20 Toppan Printing Co Ltd Vacuum heat insulating material
JP3563729B2 (en) * 2002-04-25 2004-09-08 松下冷機株式会社 Vacuum insulation material, and refrigeration equipment and cooling / heating equipment using vacuum insulation material
JP2006070908A (en) 2004-08-31 2006-03-16 Hitachi Home & Life Solutions Inc Vacuum heat insulating material and refrigerator
US9290313B2 (en) * 2007-04-23 2016-03-22 Coldkeepers, Llc Insulated shipping bags
WO2017047701A1 (en) * 2015-09-15 2017-03-23 株式会社クラレ Vacuum heat-insulating material, method for producing vacuum heat-insulating material, and outer packaging material for vacuum heat-insulating material
JP2017003119A (en) 2016-07-14 2017-01-05 東芝ホームテクノ株式会社 Heat insulation body
JP2019142582A (en) * 2018-02-19 2019-08-29 奈津子 小川 Production method of cold insulation packaging material
JP2019172364A (en) 2018-03-28 2019-10-10 奈津子 小川 Packaging material for cold insulation and method for producing the same

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4185673A (en) * 1978-03-13 1980-01-29 Daniello Margaret M Unitary article-carrying bag and cushion
JP2001317686A (en) * 2000-05-11 2001-11-16 Matsushita Refrig Co Ltd Vacuum insulated container
JP2005231178A (en) * 2004-02-19 2005-09-02 Sekisui Plastics Co Ltd Heat insulating bag and its production method
JP3140178U (en) * 2007-12-27 2008-03-13 株式会社オオバ Drawstring bag
JP2012163138A (en) * 2011-02-04 2012-08-30 Mitsubishi Electric Corp Vacuum thermal insulation material, and thermal insulation box
WO2019230627A1 (en) * 2018-05-31 2019-12-05 シャープ株式会社 Packing container, and method for transporting cold-storage articles

Also Published As

Publication number Publication date
CN114341021B (en) 2023-09-26
JPWO2021132457A1 (en) 2021-07-01
JP7325053B2 (en) 2023-08-14
CN114341021A (en) 2022-04-12

Similar Documents

Publication Publication Date Title
JP4897473B2 (en) Vacuum insulation
KR20070098486A (en) Vacuum heat insulating material, hot water supply apparatus using vacuum heat insulating material, and electric water heating apparatus
WO2016208193A1 (en) Gas-adsorbing device and evacuated insulating material using same
JP2007253974A (en) Heat insulating body, opposing structure, and insulating container
JP3507776B2 (en) refrigerator
JP2004502118A (en) Vacuum panel for thermal insulation of non-planar objects
JP3482408B2 (en) Vacuum insulation and refrigerators using vacuum insulation
JP2010089802A (en) Insulating container for packing
JP6132826B2 (en) Vacuum insulation and insulation box
JP2015007450A (en) Vacuum heat insulation material vacuum-packaged doubly
WO2021132457A1 (en) Heat insulation bag, heat retention bag, and method for manufacturing heat insulation bag
WO2020066849A1 (en) Cold insulation and heat insulation bag
JP6286900B2 (en) Insulation member and cold insulation box
JP2010138956A (en) Vacuum heat insulating material
JP2021133940A (en) Heat insulation container, heat insulation bag, and vacuum heat insulation material
JP7482437B2 (en) Method for producing vacuum insulation material, method for producing vacuum insulation container, and method for producing thermal insulation bag
JP2007138976A (en) Vacuum heat insulating material and its manufacturing method
CN108779889B (en) Vacuum heat insulation part and household electrical appliance, residential wall or transportation equipment with same
CN107816601B (en) Vacuum heat insulation piece
JP6742076B2 (en) Vacuum heat insulating material and method for manufacturing vacuum heat insulating material
WO2016157931A1 (en) Outer packaging member for vacuum heat insulating member, vacuum heat-insulating member, and device with vacuum heat-insulating member
JP6924948B2 (en) Vacuum heat insulating materials, heat insulating structures using them, and home appliances, residential walls and transportation equipment using them.
JP5377451B2 (en) Vacuum heat insulating material and heat insulating box using this vacuum heat insulating material
JP2010203538A (en) Vacuum heat insulation material and heat insulation board
JP2012057745A (en) Vacuum heat insulation material

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20908030

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2021567608

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20908030

Country of ref document: EP

Kind code of ref document: A1