To reduce heat transfer by radiation of vacuum insulating material used for heat insulation of a refrigerator or the like.
A heat insulating laminated film 1 or a core material 2 structured of a protective layer 2, gas barrier layer 3, and a heat welded layer 6 used for the vacuum insulating material 7 is provided with an absorption layer 6 formed of a far-infrared ray absorbing film with a high absorption rate of radiation or a plastic film coated with a far-infrared ray absorbing substance. Thereby, most of radiation heat transmitting the gas barrier layer 3 with a high reflectivity is absorbed, and insulating performance can be improved by reducing the heat transfer of the radiation of the vacuum insulating material 7. When a surface provided with the absorption layer 6 is arranged on a high temperature side in using the vacuum insulating material 7, a further absorption effect of the radiation is obtained and high heat insulating performance is achieved.
| WO/2012/057933 | INSULATED BEVERAGE CONTAINER |
| JP7346321 | liquid container |
AMAYOSHI TOMONAO
HASHIDA MASAMICHI
Tomoyasu Sakaguchi
Hiroki Naito