JP3304117B2 - Manufacturing method of vacuum insulation pack - Google Patents
Manufacturing method of vacuum insulation packInfo
- Publication number
- JP3304117B2 JP3304117B2 JP01728192A JP1728192A JP3304117B2 JP 3304117 B2 JP3304117 B2 JP 3304117B2 JP 01728192 A JP01728192 A JP 01728192A JP 1728192 A JP1728192 A JP 1728192A JP 3304117 B2 JP3304117 B2 JP 3304117B2
- Authority
- JP
- Japan
- Prior art keywords
- heat insulating
- vacuum
- insulating material
- film
- plastic
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 11
- 238000009413 insulation Methods 0.000 title description 4
- 239000011888 foil Substances 0.000 claims description 22
- 229910052751 metal Inorganic materials 0.000 claims description 19
- 239000002184 metal Substances 0.000 claims description 19
- 230000004888 barrier function Effects 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 18
- 239000011162 core material Substances 0.000 claims description 6
- 239000002650 laminated plastic Substances 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 2
- 229920003023 plastic Polymers 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims 1
- 239000011810 insulating material Substances 0.000 description 23
- 239000002985 plastic film Substances 0.000 description 11
- 229920006255 plastic film Polymers 0.000 description 11
- 239000005001 laminate film Substances 0.000 description 7
- -1 polypropylene Polymers 0.000 description 7
- 238000007666 vacuum forming Methods 0.000 description 7
- 239000006260 foam Substances 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 3
- 238000010924 continuous production Methods 0.000 description 3
- 239000012778 molding material Substances 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 238000010030 laminating Methods 0.000 description 2
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- 101150096674 C20L gene Proteins 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229920001328 Polyvinylidene chloride Polymers 0.000 description 1
- 102220543923 Protocadherin-10_F16L_mutation Human genes 0.000 description 1
- 101100445889 Vaccinia virus (strain Copenhagen) F16L gene Proteins 0.000 description 1
- 101100445891 Vaccinia virus (strain Western Reserve) VACWR055 gene Proteins 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 229910001562 pearlite Inorganic materials 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000005033 polyvinylidene chloride Substances 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Landscapes
- Thermal Insulation (AREA)
- Laminated Bodies (AREA)
Description
【0001】[0001]
【産業上の利用分野】本発明は、冷蔵庫などの断熱材と
して使用可能な真空断熱材パックの製造方法に関するも
のである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a vacuum heat insulating material pack which can be used as a heat insulating material for refrigerators and the like.
【0002】[0002]
【従来の技術】従来の真空断熱材パックは、内部に10
-2Torr以下の真空度を保ったパ−ライトなどの無機
質発泡粉末をプラスチック−金属箔のラミネ−トフィル
ム容器で被覆していたが、長期に真空度を保ち断熱性能
を維持していくために金属箔の厚みを十分にとっていく
と、逆に金属箔の厚みを増すことにより表面熱伝導が増
して初期状態における真空断熱材パックの熱伝導率が大
きくなり、断熱性能が悪くなる欠点があった。2. Description of the Related Art A conventional vacuum heat insulating material pack has 10 internal parts.
Although inorganic foamed powder such as pearlite with a vacuum of -2 Torr or less was coated with a plastic-metal foil laminating film container, metal was used to maintain the vacuum for a long period of time and maintain heat insulation performance. On the other hand, if the thickness of the foil is sufficiently increased, the surface heat conduction increases by increasing the thickness of the metal foil, so that the thermal conductivity of the vacuum heat insulating material pack in the initial state increases, and the heat insulating performance deteriorates.
【0003】例えば、30μの厚みのアルミ箔で被覆す
る場合とそうでない場合とでは、初期値において0.0
080Kcal/mh℃と0.0060Kcal/mh
℃の有意差があった。そこで初期値に優れ経時変化の少
ない容器が必要となっていた。[0003] For example, in the case of coating with an aluminum foil having a thickness of 30 µm and in the case of not covering it, an initial value of 0.0
080Kcal / mh ° C and 0.0060Kcal / mh
There was a significant difference in ° C. Therefore, a container having an excellent initial value and a small change over time has been required.
【0004】このような問題点を解決する手段として実
開昭58−111498号公報に記載されているものが
ある。As a means for solving such a problem, there is one disclosed in Japanese Utility Model Laid-Open No. 58-111498.
【0005】実開昭58−111498号公報記載の内
容を図5及び図6を用いて説明する。The contents described in Japanese Utility Model Laid-Open Publication No. Sho 58-111498 will be described with reference to FIGS.
【0006】図において、31は真空断熱材パックでパ
−ライトなどの無機質発泡粉末32及び、プラスチック
−金属箔のラミネ−トフィルム33製の容器34から成
っている。 前記フィルム33の構成は外層35に20
μの厚みのポロプロピレンなどのプラスチックフィル
ム、中層36に30μの厚みのアルミ箔よりなる金属
箔、内層37に50μの厚みのポリエチレンなどのプラ
スチックフィルムから成っており、それぞれ接着されて
ラミネ−トフィルムとなっており、2枚のラミネ−トフ
ィルム33の間に前記無機質発泡粉末32を充填して外
周をシ−ルしている。[0006] FIG odor Te, 31 Pa vacuum heat insulating material packed - inorganic foam powder 32 and the like lights, plastic - consists Tofirumu 33 made of container 34 - laminating a metal foil. The structure of the film 33 is as follows.
a plastic film such as polypropylene with a thickness of μ, a metal foil made of aluminum foil with a thickness of 30 μ on the middle layer 36, and a plastic film such as polyethylene with a thickness of 50 μ on the inner layer 37. The inorganic foamed powder 32 is filled between two laminate films 33 to seal the outer periphery.
【0007】ここで中層36はシ−ル部38の接着内端
39から5mmの距離までの面を被覆している。Here, the middle layer 36 covers the surface of the seal portion 38 up to a distance of 5 mm from the inner end 39 of the adhesive.
【0008】このような構造のラミネ−トフィルムを用
いることによって、シ−ル部に金属箔がないため、熱伝
導率の低い初期特性の優れた真空断熱材パックが得ら
れ、また、金属箔の無い部分が全体の表面積に対し微小
であるので、金属箔で完全に被覆されている場合と同等
の経時変化の少ない真空断熱材パックが得られることが
特徴となっている。By using the laminate film having such a structure, since there is no metal foil in the seal portion, a vacuum heat insulating material pack having low heat conductivity and excellent initial characteristics can be obtained. Since the non-existing portion is minute relative to the entire surface area, it is characterized in that a vacuum heat insulating material pack with little change over time can be obtained, which is the same as when completely covered with metal foil.
【0009】[0009]
【発明が解決しようとする課題】しかしながら、前記従
来のラミネ−トフィルムの製造にあたっては、容器の大
きさを50×50×4tcmとすると、外層のプラスチ
ックフィルムを53×53cmの大きさに切断し、中層
の金属箔を51.5×51.5cmの大きさに切断し、
さらに内層のプラスチックフィルムを53×53cmの
大きさに切断して、おのおのを貼り付けなければならな
い。However, in manufacturing the above-mentioned conventional laminate film, if the size of the container is 50 × 50 × 4 tcm, the outer plastic film is cut into a size of 53 × 53 cm. Cut the middle layer metal foil to a size of 51.5 x 51.5 cm,
Furthermore, the plastic film of the inner layer must be cut into a size of 53 × 53 cm, and each must be attached.
【0010】このような方法では、あらかじめ所定の大
きさに切断されているため、連続生産が困難であり、工
業的に安価で製造することができない問題があった。[0010] In such a method, since it is cut into a predetermined size in advance, continuous production is difficult, and there is a problem that it cannot be manufactured at a low cost industrially.
【0011】また、中層の金属箔の取り付け位置がずれ
ると、ヒ−トシ−ル部において、上下の金属箔が接触し
てしまい、断熱性能が低下し安定した性能を得ることが
できない問題があった。Further, if the mounting position of the metal foil of the middle layer is displaced, the upper and lower metal foils come into contact with each other in the heat seal portion, and there is a problem that the heat insulating performance is reduced and stable performance cannot be obtained. Was.
【0012】また従来の真空断熱材パックでは、断熱箱
体の壁面に貼り付けた場合、周縁のヒ−トシ−ル部が壁
面から離れているため、発泡断熱材を充填した時にヒ−
トシ−ル部と壁面との空間部に空洞が形成され、収縮に
よる外観不良が生じ製品品質を著しく損なう問題があっ
た。Further, in the conventional vacuum heat insulating material pack, since the peripheral heat seal portion is separated from the wall surface when attached to the wall surface of the heat insulating box, the heat insulating material is filled when the foam heat insulating material is filled.
A cavity is formed in the space between the seal portion and the wall surface, resulting in a poor appearance due to shrinkage, resulting in a problem that product quality is significantly impaired.
【0013】本発明は、上記従来の課題を解決するもの
であり、工業的に安価に製造することができ、また安定
した性能を有する真空断熱材パックを得ることが出来る
と共に、製品品質の優れた断熱箱体を提供することを目
的とするものである。The present invention solves the above-mentioned conventional problems. It is possible to produce a vacuum heat insulating material pack having stable performance, to be industrially inexpensive, and to obtain a product having excellent product quality. It is an object to provide a heat-insulated box body.
【0014】[0014]
【課題を解決するための手段】上記従来の課題を解決す
るために、本発明の真空断熱材パックの製造方法は、プ
ラスチックラミネ−トフィルムを真空成形した容器の一
部にプラスチック−金属箔ラミネ−トフィルムからなる
バリヤ材をヒ−トシ−ルにより取り付け、前記容器の内
部に連続気泡構造を有する芯材を充填し、その後プラス
チックラミネ−トフィルムからなる蓋材により周縁部を
ヒ−トシ−ルし内部を減圧した製造方法である。In order to solve the above-mentioned conventional problems, a method of manufacturing a vacuum heat insulating material pack according to the present invention is directed to a method of manufacturing a plastic-laminated film in a part of a vacuum-formed container. Attach a core material having an open-cell structure to the inside of the container, and then heat seal the peripheral part with a lid material made of a plastic laminate film. Is a production method in which the pressure is reduced.
【0015】[0015]
【作用】上記構成によって、真空成形後の容器にバリヤ
材をヒ−トシ−ルによって取り付ける為、取り付けが容
易であり連続生産が可能となり工業的に安価で製造する
ことができる。[Action] Accordingly to the above-described structure, a barrier material in a container after vacuum forming - tosyl - for mounting by Le, it can be attached to prepared industrially at low cost becomes is easy can be continuously produced.
【0016】また、真空成形によって容器が作られてい
るので、真空断熱パックを断熱箱体の壁面に取り付ける
場合、周縁のヒ−トシ−ル部が壁面に密着するような形
状にすることが可能となる為、発泡断熱材を充填した時
の空洞形成による収縮の発生がない製品品質の安定した
断熱箱体を得ることができる。Further, since the container is made by vacuum forming, when the vacuum heat insulating pack is mounted on the wall surface of the heat insulating box, it is possible to form the heat seal portion on the peripheral edge into close contact with the wall surface. Therefore, it is possible to obtain a heat-insulating box with stable product quality, which does not cause shrinkage due to the formation of a cavity when the foamed heat-insulating material is filled.
【0017】[0017]
【実施例】以下、本発明の一実施例を図1、図2、図
3、図4を用いて説明する。図1において、1は真空断
熱材パックで連続気泡の硬質ウレタンフォ−ムなどの芯
材2とプラスチックラミネ−トフィルム3を真空成形し
た容器4とプラスチック−金属箔ラミネ−トフィルム5
製のバリヤ材6とプラスチックラミネ−トフィルム7製
の蓋材8から成っている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. 1, 2, 3 and 4. FIG. In FIG. 1, reference numeral 1 denotes a vacuum heat-insulating material pack, a container 4 formed by vacuum-forming a core material 2 such as open-celled rigid urethane foam and a plastic laminate film 3, and a plastic-metal foil laminate film 5.
And a cover member 8 made of a plastic laminate film 7.
【0018】前記フィルム3および7の構成は、外層9
に30μの厚みの変性アクリルニトリルなどの耐薬品
性、耐ガスバリヤ性に優れたプラスチックフィルム、中
層10に20μの厚みのポリ塩化ビニリデンなどの耐ガ
スバリヤ性に優れたプラスチックフィルム、内層11に
30μの厚みの変性アクリルニトリルなどの耐薬品性、
耐ガスバリヤ性に優れたプラスチックフィルムからなっ
ており、それぞれ接着されてラミネ−トフィルムとなっ
ている。The structure of the films 3 and 7 is as follows.
30 μm thick plastic film such as denatured acrylonitrile etc. having excellent chemical resistance and gas barrier resistance, middle layer 10 having 20 μm thick plastic film such as polyvinylidene chloride having excellent gas barrier resistance, and inner layer 11 having 30 μm thick. Chemical resistance such as modified acrylic nitrile,
It is made of a plastic film having excellent gas barrier properties, and is bonded to each other to form a laminate film.
【0019】また、前記フィルム5の構成は、外層12
に30μの厚みの変性アクリルニトリルなどの耐薬品
性、耐ガスバリヤ性に優れたプラスチックフィルム、中
層13に9μの厚みのアルミ箔よりなる金属箔、内層1
4に30μの厚みの変性アクリルニトリルなどの耐薬品
性、耐ガスバリヤ性に優れたプラスチックフィルムから
なっており、それぞれ接着されてラミネ−トフィルムと
なっている。The structure of the film 5 is as follows.
A plastic film such as a modified acrylic nitrile having a thickness of 30 μm and excellent in chemical resistance and gas barrier resistance; a metal layer made of an aluminum foil having a thickness of 9 μm in the middle layer 13;
4 is made of a plastic film such as a modified acrylic nitrile having a thickness of 30 μm and having excellent chemical resistance and gas barrier resistance, and is bonded to each other to form a laminate film.
【0020】そして、前記容器4の内面に前記バリヤ材
6がヒ−トシ−ルなどの方法によって取り付けられ、そ
の後前記連続気泡構造の硬質ウレタンフォ−ムなどから
なる芯材2を充填し、内部を減圧後蓋材8をヒ−トシ−
ルすることによって密封されている。Then, the barrier member 6 is attached to the inner surface of the container 4 by a method such as a heat seal, and then the core member 2 made of a hard urethane foam having an open cell structure is filled therein. After the pressure is reduced, the cover material 8 is heat-sealed.
Sealed.
【0021】以上の様な構成によって、金属箔を有する
バリヤ材6が部分的に貼り付けられる為、金属箔による
熱伝導が少なく優れた断熱性能が得られ、また、バリヤ
材6が容器4にのみ設けられているので、バリヤ材6の
貼り付け位置のずれによって上下の金属箔が接触するこ
ともなく、安定した性能が得られる。With the above structure, the barrier material 6 having the metal foil is partially adhered, so that the heat conduction by the metal foil is small and excellent heat insulating performance is obtained. Since only the metal foils are provided, the upper and lower metal foils do not come into contact with each other due to the displacement of the bonding position of the barrier material 6, and stable performance is obtained.
【0022】この真空断熱材パックの製造方法につい
て、図3を用いて説明する。ラミネ−トフィルム15を
真空成形機16によって凹型に成形することによって成
形材17が得られる。A method of manufacturing the vacuum heat insulating material pack will be described with reference to FIG. The molding material 17 is obtained by forming the laminate film 15 into a concave shape by the vacuum forming machine 16.
【0023】その後、成形材17の平面部18の内面に
所望の寸法のバリヤ材19をヒ−トシ−ル機20により
取り付け、連続硬質ウレタンフォ−ムの芯材21を充填
し蓋材22により相対する二辺をヒ−トシ−ルし、真空
チャンバ−23に設置し内部を減圧後、残りの相対する
二辺をヒ−トシ−ルし密閉することによって真空断熱材
パック24が得られる。Thereafter, a barrier material 19 having a desired size is attached to the inner surface of the flat portion 18 of the molding material 17 by a heat sealer 20, and a core material 21 of continuous hard urethane foam is filled, and a cover material 22 is used. Two opposite sides are heat-sealed, placed in a vacuum chamber 23, and the inside is depressurized. Then, the other two opposite sides are heat-sealed and sealed to obtain a vacuum heat insulating material pack 24.
【0024】この様な方法によれば、金属箔を有するバ
リヤ材21をヒ−トシ−ルによって成形材17に取り付
ける為、取り付けが容易であり連続生産が可能となり工
業的に安価で製造することが可能となるのである。According to such a method, since the barrier material 21 having a metal foil is attached to the molding material 17 by a heat seal, the attachment is easy, continuous production is possible, and industrially inexpensive production is possible. It becomes possible.
【0025】図4において、25は断熱箱体で、内箱2
6と、外箱27と、前記外箱27の内面に隙間なく取り
付けられた真空断熱材パック28と、前記内箱26と外
箱27によって形成された空間部29に充填された発泡
断熱材30からなっている。In FIG. 4, reference numeral 25 denotes an insulated box ,
6, the outer box 27, before the vacuum heat insulating material pack 28 mounted without any gap to the inner surface of Kigaibako 27, foam insulation filling the space 29 formed by the front Symbol inner box 26 and outer box 27 It is made of material 30.
【0026】以上の様な構成によって、真空断熱材パッ
ク28が外箱27の内面に隙間なく取り付けられている
為、内箱26と外箱27によって形成された空間部29
に発泡断熱材30を充填した場合の空洞形成がなく、収
縮のない製品品質の安定した断熱箱体を得ることが出来
る。With the above configuration, the vacuum heat insulating material pack 28 is attached to the inner surface of the outer box 27 without any gap, so that the space 29 formed by the inner box 26 and the outer box 27 is formed.
When the foamed heat insulating material 30 is filled, no void is formed, and a stable heat insulating box without shrinkage can be obtained.
【0027】尚、真空断熱材パック28を内箱26の外
面に取り付ける場合は、蓋材22のの構成材料をバリヤ
材19と同じく外層9に30μの厚みの変性アクリルニ
トリルなどの耐薬品性、耐ガスバリヤ性に優れたプラス
チックフィルム、中層10に9μの厚みのアルミ箔より
なる金属箔、内層11に30μの厚みの変性アクリルニ
トリルなどの耐薬品性、耐ガスバリヤ性に優れたプラス
チックフィルムからなるラミネ−トフィルムを用いた方
が、良い性能が得られる。When the vacuum heat-insulating material pack 28 is attached to the outer surface of the inner box 26, the material of the lid member 22 is the same as that of the barrier material 19, and the outer layer 9 is made of a chemical resistance such as a modified acrylic nitrile having a thickness of 30 μm. Lamine consisting of a plastic film with excellent gas barrier resistance, a metal foil of 9 μm thick aluminum foil for the middle layer 10, and a plastic film with excellent chemical resistance and gas barrier resistance such as modified acrylic nitrile of 30 μm thickness for the inner layer 11 for the inner layer 11. Better performance can be obtained by using a film.
【0028】[0028]
【発明の効果】以上のように本発明は、真空成形後の容
器にバリヤ材をヒ−トシ−ルにより取り付ける為、取り
付けが容易であり連続生産が可能となり工業的に安価で
製造することができる。As described above, according to the present invention, since the barrier material is attached to the container after vacuum forming by a heat seal, the attachment is easy, continuous production is possible, and industrially inexpensive production is possible. it can.
【図1】本発明の一実施例における真空断熱材パックの
製造方法で作られた真空断熱材パックの断面図[1] of the vacuum heat insulating material packed in one embodiment of the present invention
Sectional view of vacuum insulation pack made by manufacturing method
【図2】図1の要部拡大断面図FIG. 2 is an enlarged sectional view of a main part of FIG. 1;
【図3】a 真空成形前のシ−ト状のラミネ−トフィル
ムの断面図 b 真空成形機により容器状に成形するところを表わす
断面図 c 容器内面にヒ−トシ−ル機によりバリヤ材を貼り付
けるところを表わす断面図 d 真空チャンバ−により真空断熱材パックの内部を減
圧するところを表わす断面図FIG. 3 a is a cross-sectional view of a sheet-like laminated film before vacuum forming. B is a cross-sectional view showing forming into a container by a vacuum forming machine. C. A barrier material is attached to the inner surface of the container by a heat-sealing machine. Sectional view showing the place where d is attached. Sectional view showing the place where the inside of the vacuum heat insulating material pack is depressurized by the vacuum chamber.
【図4】本発明の一実施例における断熱箱体の断面図FIG. 4 is a cross-sectional view of the heat insulating box in one embodiment of the present invention.
【図5】従来の真空断熱材パックの断面図FIG. 5 is a sectional view of a conventional vacuum heat insulating material pack.
【図6】図5の要部拡大断面図FIG. 6 is an enlarged sectional view of a main part of FIG. 5;
1 真空断熱材パック 2 芯材 4 容器 6 バリヤ材 8 蓋材 DESCRIPTION OF SYMBOLS 1 Vacuum insulation material pack 2 Core material 4 Container 6 Barrier material 8 Lid material
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平5−209700(JP,A) 特開 昭61−101789(JP,A) 特開 平1−189479(JP,A) 実開 平4−64089(JP,U) 実開 昭62−200578(JP,U) 実開 平1−14996(JP,U) 実開 昭62−102093(JP,U) (58)調査した分野(Int.Cl.7,DB名) B32B 1/02 F16L 59/06 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-5-209700 (JP, A) JP-A-61-101789 (JP, A) JP-A-1-189479 (JP, A) 64089 (JP, U) JP-A 62-200578 (JP, U) JP-A 1-14996 (JP, U) JP-A 62-102093 (JP, U) (58) Fields surveyed (Int. Cl. 7 , DB name) B32B 1/02 F16L 59/06
Claims (1)
成形した容器の一部にプラスチック−金属箔ラミネ−ト
フィルムからなるバリヤ材をヒ−トシ−ルにより取り付
け、前記容器の内部に連続気泡構造を有する芯材を充填
し、その後プラスチックラミネ−トフィルムからなる蓋
材により周縁部をヒ−トシ−ルし内部を減圧した真空断
熱材パックの製造方法。 (1) vacuuming a plastic laminate film;
Plastic-metal foil laminate on a part of the molded container
Attach barrier material consisting of film with heat seal
Filling the container with a core material having an open-cell structure
And then a lid made of plastic laminated film
Heat-sealing the periphery with a material and depressurizing the inside
Heating material pack manufacturing method.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP01728192A JP3304117B2 (en) | 1992-02-03 | 1992-02-03 | Manufacturing method of vacuum insulation pack |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP01728192A JP3304117B2 (en) | 1992-02-03 | 1992-02-03 | Manufacturing method of vacuum insulation pack |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH05215292A JPH05215292A (en) | 1993-08-24 |
JP3304117B2 true JP3304117B2 (en) | 2002-07-22 |
Family
ID=11939599
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP01728192A Expired - Fee Related JP3304117B2 (en) | 1992-02-03 | 1992-02-03 | Manufacturing method of vacuum insulation pack |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3304117B2 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101396367B1 (en) * | 2012-05-25 | 2014-05-19 | 한국생산기술연구원 | Pocket Type Heat Insulating Materials Blanket and Method for Preparing the Same |
KR20150106306A (en) * | 2014-03-11 | 2015-09-21 | 삼성전자주식회사 | Vacuum heat insulating material and refrigerator including the same |
CN107830683A (en) * | 2017-11-30 | 2018-03-23 | 合肥美菱股份有限公司 | A kind of vacuum heat insulating plate structure |
-
1992
- 1992-02-03 JP JP01728192A patent/JP3304117B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH05215292A (en) | 1993-08-24 |
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