| 摘要 |
PROBLEM TO BE SOLVED: To provide a cardboard tube that prevents production of paper powder even in repeated use of the cardboard tube and that can improve recyclability.SOLUTION: In a cardboard tube, end covering members 3 are attached to both end surfaces 6 of a cardboard tube body 2. The cardboard tube body has a thin-walled part near an end of an inner surface. The end covering member comprises a flange part 4 that has an annular shape approximately identical to that of the end surface of the cardboard tube body and that becomes gradually thicker toward an outside diameter side, and a skirt part 5 that is long and thick enough to fill a notched part formed from the thin-wall part of the cardboard tube body and that is fitted into the notched part. |
