Abstract: A vacuum insulation material having bending formability while restraining reduction in a gas barrier property of a sheathing material. The vacuum insulation material includes a pouch-shaped sheathing material having a gas barrier property and a core received in the sheathing material as a spacer, the vacuum insulation material having a bendable region, a first surface, and a second surface opposite to the first surface, wherein at least one of the first and second surfaces in the bendable region is provided with a plurality of grooves extending at intervals, the grooves include a pair of outer grooves formed in the bendable region and a plurality of inner grooves formed inside the outer grooves, and an interval between each outer groove and a corresponding one of the inner grooves adjacent to each outer groove is greater than an interval between the inner grooves.

Abstract: A vacuum insulation material having bending formability while restraining reduction in a gas barrier property of a sheathing material. The vacuum insulation material includes a pouch-shaped sheathing material having a gas barrier property and a core received in the sheathing material as a spacer, the vacuum insulation material having a bendable region, a first surface, and a second surface opposite to the first surface, wherein at least one of the first and second surfaces in the bendable region is provided with a plurality of grooves extending at intervals, the grooves include a pair of outer grooves formed in the bendable region and a plurality of inner grooves formed inside the outer grooves, and an interval between each outer groove and a corresponding one of the inner grooves adjacent to each outer groove is greater than an interval between the inner grooves.