WO2006103739A1 - Conteneur calorifuge - Google Patents

Conteneur calorifuge Download PDF

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Publication number
WO2006103739A1
WO2006103739A1 PCT/JP2005/005778 JP2005005778W WO2006103739A1 WO 2006103739 A1 WO2006103739 A1 WO 2006103739A1 JP 2005005778 W JP2005005778 W JP 2005005778W WO 2006103739 A1 WO2006103739 A1 WO 2006103739A1
Authority
WO
WIPO (PCT)
Prior art keywords
container
particle size
film
heat
radiation
Prior art date
Application number
PCT/JP2005/005778
Other languages
English (en)
Japanese (ja)
Inventor
Takafumi Fujii
Yu Kobayashi
Original Assignee
Thermos K.K.
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 Thermos K.K. filed Critical Thermos K.K.
Priority to CA002590409A priority Critical patent/CA2590409A1/fr
Priority to PCT/JP2005/005778 priority patent/WO2006103739A1/fr
Priority to DE112005003091T priority patent/DE112005003091T5/de
Priority to US11/720,599 priority patent/US20080190942A1/en
Priority to JP2007510268A priority patent/JPWO2006103739A1/ja
Priority to CNA2005800375552A priority patent/CN101052334A/zh
Publication of WO2006103739A1 publication Critical patent/WO2006103739A1/fr
Priority to GB0710438A priority patent/GB2435091A/en

Links

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
    • A47J41/0055—Constructional details of the elements forming the thermal insulation
    • A47J41/0072—Double walled vessels comprising a single insulating layer between inner and outer walls
    • A47J41/0077—Double walled vessels comprising a single insulating layer between inner and outer walls made of two vessels inserted in each other
    • 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
    • A47J41/02—Vacuum-jacket vessels, e.g. vacuum bottles
    • A47J41/022—Constructional details of the elements forming vacuum space
    • A47J41/024—Constructional details of the elements forming vacuum space made of glass
    • 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
    • B65D81/3837—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 rigid container in the form of a bottle, jar or like container
    • B65D81/3841—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 rigid container in the form of a bottle, jar or like container formed with double walls, i.e. hollow

Definitions

  • the present invention relates to a heat insulating container, and more particularly to a glass heat insulating container formed by joining an inner container and an outer container and evacuating a gap provided between the inner container and the outer container.
  • a heat insulating container made of glass is provided with a certain gap inside the outer container, the inner container is disposed, and the vicinity of the mouth is melted to make the mouth of the inner container and the mouth of the outer container Are integrally formed, and the gap is evacuated to provide a vacuum heat insulating layer.
  • the outer surface of the inner container is exposed to radiation such as an ITO film (a substance in which an oxide of indium (In) is doped with tin (Sn)).
  • a protective film is coated, and this coating is performed by sputtering, CVD, PVD, or the like (for example, see Patent Document 1).
  • Patent Document 1 JP 2003-299582
  • the heat retention performance may vary.
  • the heat insulation performance of the radiation prevention film may be different before and after the replacement of the target even if the sputtering is performed under the same conditions.
  • This heat retention performance is considered to be related to the film thickness of the radiation preventing film.
  • the heat insulation container has a predetermined heat insulation performance is determined by assembling the heat insulation container that is not based on the film thickness until the final process, and then adding hot water to the heat insulation container and the temperature of the hot water after several hours have passed. It must be done directly by measuring This inspection takes time, resulting in high manufacturing costs. Even if it is determined that the heat insulation performance of the insulated container does not meet the standards! The film cannot be coated, resulting in disposal, which further increases the overall manufacturing cost.
  • the present invention has been made to solve such problems, and has an object to provide a heat insulating container having a certain heat retaining performance and capable of confirming the heat retaining performance in a non-destructive manner.
  • the present inventors have found that there is a certain relationship between the average particle size of the particles on the surface of the radiation prevention film and the heat retention performance. .
  • the inventors have found that by maintaining the particle size at a predetermined value or more, a certain heat retention performance can be secured, and the present invention has been completed.
  • the heat insulation container according to claim 1 of the present invention at least one of the outer surface of the glass inner container and the inner surface of the glass outer container is coated with a radiation prevention film, and the inner container is A heat-insulating container formed by providing a space inside the outer container, joining the mouth of the inner container and the mouth of the outer container, and evacuating and sealing the space
  • the average particle size of the particles on the surface of the radiation preventing film is not less than a predetermined value.
  • the heat insulation container according to claim 2 wherein at least one of the outer surface of the glass inner container and the inner surface of the glass outer container is coated with a radiation prevention film, and the inner container is the outer container.
  • the heat insulating container formed by disposing and arranging a gap inside, joining the mouth of the inner container and the mouth of the outer container, and evacuating and sealing the gap
  • the average particle size of the surface particles of at least a portion of the radiation preventing film that is present on the side portion of the heat insulating container is a predetermined value or more.
  • the heat insulation container according to claim 3 is characterized in that, in claim 1 or 2, the predetermined value is 5 Onm.
  • the insulated container according to claim 4 is characterized in that, in any one of the forces 1 to 3, the thickness of the radiation preventing film is 150 nm or more.
  • the heat insulation container according to claim 5 is characterized in that, in any one of the forces 1 to 4, the radiation prevention film is an ITO film.
  • the heat insulating container of the present invention sufficient heat retention performance can be obtained by setting the average particle size of the particles on the surface of the radiation preventing film to a predetermined value or more. Since the particle diameter can be measured non-destructively by observing from the outside, it can be inspected quickly, and even if it is judged that the coating is insufficient, it is possible to form a film repeatedly. Therefore, the inspected thermal insulation container is not wasted, and as a result, the entire manufacturing cost can be reduced.
  • the part of the radiation preventing film that greatly affects the heat retaining performance of the heat insulating container is a part that exists on the side of the heat insulating container. Therefore, if the average particle diameter of the surface particles of at least the side portions of the heat insulating container in the radiation prevention film is equal to or greater than a predetermined value, sufficient heat retaining performance can be ensured.
  • the heat insulating container having the radiation preventing film is sealed with lOOOcc of 95 ° C hot water inside, Even after 6 hours have passed in a room at 20 ° C, the temperature of the hot water inside can be kept above 60 ° C.
  • the heat insulation container equipped with the radiation prevention film is sealed with 95 ° C hot water lOOOcc inside, and the room temperature is 20 ° C. Even after 6 hours, the temperature of the internal hot water can be kept above 60 ° C.
  • FIG. 1 is a cross-sectional view of a heat insulating container according to a preferred embodiment of the present invention.
  • FIG. 2 is a graph showing the relationship between the ITO particle size, the heat retention performance, and the thickness of the ITO film.
  • FIG. 3 is a graph showing the relationship between the soot particle size, the heat retention performance and the thickness of the capsule under different conditions from those in FIG.
  • FIG. 4 Enlarged photographs of capsules with various particle sizes.
  • FIG. 1 is a cross-sectional view of a heat-insulating container 10 that is useful for an embodiment of the present invention.
  • the heat insulating container 10 of the present embodiment includes a glass inner container 12 and a glass outer container 16 disposed with a gap 14 having a certain width outside the inner container 12. Is provided.
  • the outer container 16 is an upper outer container 16a and a lower outer container 16b joined together.
  • the inner container 12 and the upper outer container 16a are joined at the mouth 18, and the inner surface of the outer container 16 and the outer surface of the inner container 12 are joined.
  • the gap 14 between them is kept in a vacuum state.
  • the outer surface of the inner container 12 is covered with an ITO film 20 as a radiation preventing film in order to reduce heat radiation.
  • the ITO film 20 is coated by a sputtering method, and when observed from the outside, the ITO film 20 has particles having a particle diameter of a predetermined value or more on the surface.
  • the ITO film 20 has particles having a particle size of a predetermined value or more over the entire surface of the ITO film 20.
  • the present invention is not limited to this, and the average particle diameter of at least the portion of the surface of the ITO film 20 existing on the side portion 22 of the heat insulating container 10 may be a predetermined value or more.
  • the predetermined value means that 95 ° C of hot water is put in a heat insulating container having an ITO film having particles having a particle size equal to or larger than that value, and sealed, and 20 ° This is the smallest particle size at which the temperature of the hot water inside the insulated container is maintained at 60 ° C or higher even after 6 hours have passed in the C room.
  • place an insulated container in a room at 20 ° C put 10 OOcc of hot water at about 95 ° C in it, seal it, and the temperature of the hot water after 6 hours has passed is referred to as heat insulation performance in this specification.
  • This 60 ° C is generally the lowest temperature required to function as an insulated container.
  • the ITO film 20 is covered on the outer surface of the glass inner container 12, the inner container 12 is disposed with the gap portion 14 provided in the outer container 16, and the inner container 12 and outer container 16
  • the average particle size of the particles on the surface of the ITO film 20 is not less than a predetermined value.
  • the heat retention performance of 60 ° C can be obtained by setting the average particle size of the particles on the surface of the capsule 20 to a predetermined size or more. And since the particle size can be inspected non-destructively by observing from the outside, it can be inspected quickly. Even if the coating is judged to be inadequate, since it has been inspected nondestructively, it is possible to further form a film on the coated ITO film. Therefore, the insulative container that has been inspected is not wasted, and as a result, the overall manufacturing cost can be reduced.
  • the ITO film 20 is used as the radiation preventing film, but the type of the radiation preventing film is not limited to this, and a metal oxide (semiconductor) such as ZnO, SiO 2, SnO 2, or TiO 2 is used. )so
  • the average particle size of the particles on the surface of the anti-radiation film is also sealed by placing 95 ° C hot water in a heat insulating container equipped with the anti-radiation film and placing it in a room at 20 ° C for 6 hours. After the lapse of time, the particle size is not less than the minimum value at which the temperature of the hot water inside the heat insulating container is maintained at 60 ° C or higher.
  • the ITO film 20 is covered on the outer surface of the inner container 12, but the surface to be covered is not limited to this, and may be another surface such as the inner surface of the outer container 16.
  • the relationship between the film thickness and the heat insulation performance of the heat insulation container of the finished product equipped with the inner container coated with the ITO film was investigated.
  • Graph A in Fig. 2 is a graph showing the relationship between the heat retention performance and the ITO particle size, where the vertical axis represents the heat retention performance (° C) of the heat insulating container and the horizontal axis represents the ITO particle size (nm). .
  • the scale of the heat retention performance is shown on the left side of the graph.
  • the temperature of the hot water is 60 ° C even after 6 hours. Maintain above.
  • the heat retention performance is not proportionally improved.
  • the particle size is 150 nm or more, the influence of the particle size on the heat retention performance is reduced, and particularly if the particle size is 200 nm or more, the particle size is increased. Thermal insulation performance is almost unchanged. Obedience Therefore, under the conditions of this example, the particle size is preferably 50 nm or more, more preferably 60 ⁇ m or more, and considering the efficiency of sputtering, 200 nm or less is preferable, and considering the efficiency, 150 nm or less is preferable. is there.
  • Graph B shows the relationship between the thickness of the ITO film and the particle size, with the vertical axis representing the ITO film thickness (nm) and the horizontal axis representing the ITO particle size (nm) as in Graph A.
  • the graph of the ITO film thickness is shown on the right side of the graph. Note that this straight line is slightly deviated from the actual plot because this straight line is an approximate expression for determining the measured force shown in FIG. 3 of Example 2 described later.
  • a particle size of 50 nm corresponds to a film thickness of approximately 150 nm
  • a particle diameter of 60 nm corresponds to a film thickness of approximately 200 nm
  • a particle diameter of 200 nm corresponds to a film thickness of approximately 800 nm
  • a particle diameter of 150 nm corresponds to a film thickness of approximately 600 nm. Therefore, when the above particle size condition is expressed in terms of film thickness, the ITO film preferably has a film thickness of 150 nm or more, more preferably 200 nm or more, and considering the efficiency of sputtering, 800 nm or less is more preferable. Therefore, 600 nm or less is preferable.
  • the average particle size of the surface particles in the heat insulating container 10 covered with the ITO film formed by ITO ITO sputtering in an atmosphere where the weight ratio of argon to oxygen was 76 to 7. It can be seen that when the typical particle size is 50 nm or more, the heat retention performance of 60 ° C or more is maintained even after 6 hours. It can also be seen that when the thickness of the ITO film is 150 nm or more, the heat retention performance of 60 ° C. or more is maintained even after 6 hours.
  • the average particle size (ITO particle size) of the surface particles of the ITO film when ITO is spotted on the outer surface of the inner container 12 is The relationship between the film thickness of the ITO film and the heat insulation performance of the heat insulation container of the finished product including the inner container coated with the ITO film was investigated.
  • Graph A in Fig. 3 is a graph showing the relationship between the heat retention performance and the ITO particle size, with the vertical axis representing the heat insulation performance (° C) of the heat insulating container and the horizontal axis representing the ITO particle size (nm). .
  • the scale of thermal insulation performance is shown on the left side of the graph.
  • graph A under the conditions different from those in Example 1, even in the case of a heat-insulated container in which the outer surface of the inner container is coated with an ITO film having an average particle diameter of about 50 nm or more, 6 It can be seen that the temperature of the hot water remains above 60 ° C even after the time.
  • the heat retention performance is proportionally improved even when the particle size is increased.
  • the particle size is 120 nm or more, the effect of the particle size on the heat retention performance is reduced.
  • the particle size is 150 nm or more, the heat retention performance is hardly changed even when the particle size is increased. Therefore, under the conditions of this example, the particle size is preferably 50 nm or more, more preferably 60 ⁇ m or more. Considering the sputtering efficiency, 150 nm or less is preferable, and 120 nm or less is preferable. Is preferred.
  • Graph B shows the relationship between the ITO film thickness and the ITO particle size, with the vertical axis representing the ITO film thickness (nm) and the horizontal axis representing the ITO particle size (nm) as in Graph A. It is an approximate expression obtained from actual measured values.
  • the scale of the ITO film thickness is shown on the right side of the graph. According to this graph, a particle size of 50 nm corresponds to a film thickness of approximately 150 nm, a particle diameter of 60 nm corresponds to a film thickness of approximately 200 nm, a particle diameter of 120 nm corresponds to a film thickness of approximately 500 nm, and a particle diameter of 150 nm corresponds to a film thickness of approximately 600 nm.
  • the ITO film preferably has a film thickness of 150 nm or more, more preferably 200 nm or more, and the efficiency of sputtering is preferably 600 nm or less. And 500 nm or less are suitable.
  • the average particle size of the surface particles is 5 in a heat insulating container covered with an ITO film in which ITO is spotted in an atmosphere where the weight ratio of argon to oxygen is 76 to 12.
  • the insulation performance of 60 ° C or higher is maintained even after 6 hours.
  • the thickness of the ITO film is 150 nm or more, the heat retention performance of 60 ° C. or more is maintained even after 6 hours.
  • FIG. 4 is an enlarged photograph of the surface of the ITO film.
  • the particles on the surface of the ITO film are not necessarily spherical but also have different sizes.
  • the shape becomes various and elliptical and polygonal, and the size varies as compared with the case where the particle size is about 0.06 ⁇ m.
  • the average particle diameter of the ITO film surface means the average diameter of particles having an average size as shown in the figure.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Food Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)
  • Thermally Insulated Containers For Foods (AREA)

Abstract

Conteneur calorifugé qui présente une performance de rétention de chaleur donnée, permettant l’identification de la présentation de la performance de rétention de chaleur à partir de son apparence. On propose un conteneur calorifugé (10) ayant au moins soit la surface externe du conteneur interne en verre (12) soit la surface interne du conteneur externe en verre (16) enduites avec un film de protection contre le rayonnement (20), le conteneur interne (12) disposé à l’intérieur du conteneur externe (16) avec un espace vide (14) interposé entre eux, le conteneur interne (12) et le conteneur externe (16) réunis ensemble, l’espace vide (14) sous vide et scellé de façon hermétique, caractérisé en ce que le film de protection contre le rayonnement (20) a des particules à sa surface dont le diamètre moyen est ≥ une valeur donnée. Le conteneur calorifugé (10) réalise de façon satisfaisante une performance de rétention de chaleur lorsque le diamètre moyen des particules à la surface du film de protection contre le rayonnement (20) est ≥ une valeur donnée.
PCT/JP2005/005778 2005-03-28 2005-03-28 Conteneur calorifuge WO2006103739A1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
CA002590409A CA2590409A1 (fr) 2005-03-28 2005-03-28 Conteneur calorifuge
PCT/JP2005/005778 WO2006103739A1 (fr) 2005-03-28 2005-03-28 Conteneur calorifuge
DE112005003091T DE112005003091T5 (de) 2005-03-28 2005-03-28 Wärmeisolierter Behälter
US11/720,599 US20080190942A1 (en) 2005-03-28 2005-03-28 Heat Insulated Container
JP2007510268A JPWO2006103739A1 (ja) 2005-03-28 2005-03-28 断熱容器
CNA2005800375552A CN101052334A (zh) 2005-03-28 2005-03-28 隔热容器
GB0710438A GB2435091A (en) 2005-03-28 2007-05-31 Heat insulated container

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2005/005778 WO2006103739A1 (fr) 2005-03-28 2005-03-28 Conteneur calorifuge

Publications (1)

Publication Number Publication Date
WO2006103739A1 true WO2006103739A1 (fr) 2006-10-05

Family

ID=37053012

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2005/005778 WO2006103739A1 (fr) 2005-03-28 2005-03-28 Conteneur calorifuge

Country Status (7)

Country Link
US (1) US20080190942A1 (fr)
JP (1) JPWO2006103739A1 (fr)
CN (1) CN101052334A (fr)
CA (1) CA2590409A1 (fr)
DE (1) DE112005003091T5 (fr)
GB (1) GB2435091A (fr)
WO (1) WO2006103739A1 (fr)

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US20130334089A1 (en) * 2012-06-15 2013-12-19 Michael P. Remington, Jr. Glass Container Insulative Coating
USD815901S1 (en) 2016-05-04 2018-04-24 Hardy Steinmann Portable beverage container
USD821146S1 (en) 2016-05-04 2018-06-26 Hardy Steinmann Portable beverage container
JP6481674B2 (ja) * 2016-11-18 2019-03-13 トヨタ自動車株式会社 真空断熱容器
DE202017101031U1 (de) * 2017-02-24 2018-05-28 Emsa Gmbh Doppelwandige Vakuumglasisolierkanne
CN109528030B (zh) * 2018-12-10 2021-06-18 南充辉泓真空技术有限公司 一种双层玻璃真空保温器皿的制备工艺
CN111319838A (zh) * 2020-04-15 2020-06-23 苏州联胜化学有限公司 储水瓶
US11375835B2 (en) 2020-10-29 2022-07-05 Paul Sherburne Insulated beverage container

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JPH10265718A (ja) * 1997-03-27 1998-10-06 Mitsubishi Materials Corp 防眩性赤外線遮断膜形成用塗料
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Also Published As

Publication number Publication date
JPWO2006103739A1 (ja) 2008-09-04
CN101052334A (zh) 2007-10-10
DE112005003091T5 (de) 2008-02-14
CA2590409A1 (fr) 2006-10-05
US20080190942A1 (en) 2008-08-14
GB0710438D0 (en) 2007-07-11
GB2435091A (en) 2007-08-15

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