| 摘要 |
A packaging device, made from a packaging material comprising an inner structural material (1) and an outer layer material (2), wherein said inner structural material (1) is a hollow material, and said outer layer material (2) is adhered to the outside surface of said inner structural material (1), the packaging device comprising an inner structure (1) formed by folding said inner structural material (1) and an outer layer provided on the outside surface of said inner structure. A manufacturing method of the packaging material comprises producing a middle structural material comprising a cavity or channel, and sandwiching the middle structural material with an outer face material and an inner face material to yield said hollow material; and attaching the outer layer material onto an outer surface of the hollow material. |
