| 摘要 |
PROBLEM TO BE SOLVED: To provide a wound body of a porous carbonaceous sheet-like material, hardly causing a collapsed package form, having an arranged wound edge surface, hardly imparting damage to the sheet-like material, hardly causing meandering of the sheet-like material when unwinding the sheet-like material, and having excellent handleability, and further to provide a method for stably winding the wound body and an apparatus for winding the wound body, in order to improve productivity in the manufacturing process of a fuel cell. SOLUTION: This wound body (1) is obtained by winding the sheet-like material (2) on a core bobbin (3) while regulating the outer diameter D of the core bobbin (3) and the winding width W of the porous carbonaceous sheet-like material (2) so as to satisfy the formula: W/D<=4.9, further regulating the initial winding tension per unit width and the final winding tension per unit width so as to be >=30 N/m and >=20 N/m respectively, and gradually reducing the winding tension from the start of the winding to the finish of the winding. |
