Abstract: In a packing material 1 including a plate-shaped member having a surface of thermal weldability, and a gas storing section formed by thermally welding plastic film members having thermal weldability and flexibility and configured to store a gas, the packing material has a planar section formed by linearly thermally welding the plate-shaped member and the plastic film member to form the gas storing section configured to store a gas, and a connecting section bent by thermally welding the plate-shaped member and the plastic film member, and is bent at the connecting section to form a three-dimensional shape to store a material to be packed.

Abstract: Provided is a packing material enabling easy transportation and manufacture, and having a shape configured to protect portions corresponding to corners of a gas storing section by supplying a gas or liquid. In a packing material 1 including a plate-shaped member 21 having a surface of thermal weldability, and a gas storing section 42 formed by thermally welding plastic film members 22 having thermal weldability and flexibility and configured to store a gas, the packing material has a planar section 40 formed by linearly thermally welding the plate-shaped member 21 and the plastic film member 22 to form the gas storing section 42 configured to store a gas, and a connecting section 50 bent by thermally welding the plate-shaped member 21 and the plastic film member 22, and is bent at the connecting section 50 to form a three-dimensional shape to store a material to be packed 90.