| 摘要 |
<p>PURPOSE:To provide a vacuum heat insulating pack which can be manufactured industrially at low cost while being stabilized in performance by making up the pack of core material, a container covering the core material, and of a barrier member, and concurrently providing the barrier member for a part of the container. CONSTITUTION:This pack is made up of core material 2 made of hard urethane foam in a continuous bubble structure and the like, a container 4 which is made from a plastic laminate film 3 under vacuum, a barrier member 6 made from a plastic-metallic foil laminate film 5, and of a cover member 8 made from a plastic laminate film 7. The barrier member 6 is fitted on the inner surface of the container 4 by means of heat sealing and the like, the core material 2 made of hard urethane foam in a continuous bubble structure and the like, is filled therein thereafter, its inner section is decompressed, and the cover member 8 is hermetically sealed by means of heat sealing thereafter. Since the barrier member 6 having the metallic foil is partially stuck thereon as mentioned above, less thermal conduction by the metallic foil takes place.</p> |
