| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a vacuum heat insulating material improving surface smoothness and having high heat insulating performance, and a refrigerator with high heat insulating performance including the vacuum heat insulating material. <P>SOLUTION: This vacuum heat insulating material (50) includes a core material (51) of a fiber aggregate, an inner bag material (53) for storing the core material (51) and a casing material (54) for storing the inner bag material (53). The core material (51) includes a resin fiber layer (52a) and a fused part having fibers fused with each other of the resin fiber layer (52a). A fused part is provided on a surface of the rein fiber layer (52a). A diameter of the fiber of the resin fiber layer (52a) is 5 to 30μm, and fibers with each other include bundle-shaped fused parts of 10 to 200μm. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
