| 摘要 |
PROBLEM TO BE SOLVED: To provide a vacuum heat insulator of high heat insulating performance and excellent in handleability and recyclability.SOLUTION: In a vacuum heat insulator 10 configured by accommodating a core material 12 formed by laminating a plurality of sheet-like fiber aggregates in a wrapping material 11 and performing pressure reduction, and hermetically sealing the wrapping material 11, a wrapping length adjuster 20 is arranged that is sealed together with the core material 12 and configured to suppress wrinkles due to looseness of the wrapping material 11 that occurs in accordance with a curvature of bending of the core material 12. |
