| 摘要 |
[PROBLEMS] To provide a hollow body that can be produced easily; a sheet body that can be produced at low production cost with limited space; and processes for producing these. [MEANS FOR SOLVING PROBLEMS] There is provided hollow body (1) comprising multiple sheets (5,6,9,10) arranged opposite to each other in the up and down direction and bonded to each other via a junction layer. Hollow portion formation sheets (7,8) with a width dimension smaller than that of sheets (5,6,9,10) are interposed between the sheets (5,6,9,10). Beside the hollow portion formation sheets (7,8), the sheets are bonded to each other via junction layers (11,12,13,14). Hollow portion (2) is provided between the hollow portion formation sheets (7,8) and between the sheets (9,10). Further, there is provided sheet body (601) comprising lower layer sheet (602) and, bonded thereonto, upper layer sheet (603), wherein the upper layer sheet (603) consists of, arranged side-by-side in the direction of width, first sheet half body (604) and second sheet half body (605), while the lower layer sheet (602) consists of sheet laminate (504,505) composed of, superimposed one upon another, multiple sheets (5,6,7,8,9,10,503). |
