| 摘要 |
PROBLEM TO BE SOLVED: To provide a vacuum heat insulation material by which a coating rate to a part to be heat-insulated is raised, and which can improve temperature-preservation performance.SOLUTION: A vacuum heat insulation material is composed of: a skeleton 2 whose contour has a three-dimensional curved face, and which is constituted of plastic for holding the three-dimensional curved face; a core 3 which is arranged around the skeleton 2, and constituted of an inorganic fiber, an organic fiber or a complex fiber composed of them; and a packaging part 4 which covers the skeleton 2 and the core 3, and holds the inside in a pressure-reduced state. The skeleton 2 is formed in such a manner that a plurality of skeleton materials 20 are vertically and laterally crossed. |
