A sailor roll 120 includes pressing rolls 121,122, and a center roll 123 provided between the pressing rolls 121, 122, the center roll 123 configured to press a central region 203 of a web 200. The portions of the web 200 pressed down by the pressing rolls 121, 122 serve as a fold origin from which the web 200 is folded. Each of the pressing rolls 121, 122 has a tapered shape in which the diameter becomes smaller toward the outer side in the cross direction CD In other word, the pressing rolls 121, 122 respectively have tapered surfaces 121a, 122a tapered toward a side region of the web 200.
