SubjectIncrease the perforability to the nonwoven fabric.SolutionThe perforating roller has an outer peripheral portion provided with a perforation member 80 having a tip portion 81 which pierces the nonwoven fabric to gradually pierce the hole and perforates the expanded hole and rotates in a predetermined rotation direction. The tip portion 81 has an interval holding portion 81a which is spaced apart from the non-woven fabric in which the perforations are perforated when the perforated portion 80 is removed from the expansion hole at the downstream side in the rotational direction.Diagram【課題】 不織布への穿孔性を高める。【解決手段】 穿孔ローラは、不織布を突き刺して刺孔を徐々に拡げて拡孔を穿孔する先端部81を有する穿孔部材80が設けられた外周部を備え、所定の回転方向に回転する。先端部81は、回転方向の下流側において、拡孔から穿孔部80材が抜き出されるときに拡孔が穿孔された不織布に対して間隔をあけて位置する間隔保持部81aを有する。【選択図】図4
