A method for manufacturing fibrous sheets of non-elastomeric fibers, the method comprising: a feed-out driving process configured to adjust a conveying speed of a continuous fibrous sheet and a gather forming process configured to supply the continuous fibrous sheet to an engagement portion of a plurality of gear teeth each extending in a direction intersecting with a moving direction of the continuous fibrous sheet and to form undulating gathers on the continuous fibrous sheet, wherein: a feed-out speed in the feed-out driving process is faster than a feed-out speed in the gather forming process the continuous fibrous sheet in a state of being substantially not stretched in the moving direction is supplied to the gather forming process so as to form the gathers on the continuous fibrous sheet without mechanically fracturing the non-elastomeric fibers and the continuous fibrous sheet is cut out into a predetermined size.本發明課題係有關於提供不存在纖維斷裂或薄片本身的破裂之柔軟纖維薄片及其製造方法。其係包含:對作為纖維薄片(10A)之材料的連續纖維薄片(10)之搬運速度進行調整的送出驅動步驟(12);以及將連續纖維薄片(10)供給至往與其移動方向(MD)交叉之方向(CD)延伸的複數輥齒(25、26)之嚙合部分(28),於移動方向(MD)用以形成連續凹凸狀之皺褶(29)的皺褶形成步驟(13),送出驅動步驟(12)之送出速度(V1)比前述皺褶形成步驟(13)之送出速度(V2)更為高速,並且將連續纖維薄片(10)以在移動方向(MD)實質未被伸長狀態下供給至皺褶形成步驟(13),使非彈性體纖維不被機械性斷裂而在連續纖維薄片(10)形成皺褶(29),將連續纖維薄片(10)切斷成既定尺寸。10‧‧‧連續纖維薄片11‧‧‧連續纖維薄片之製造裝置13‧‧‧皺褶形成部(皺褶形成步驟)14‧‧‧壓花加工部(壓花加工步驟)18‧‧‧導引輥19‧‧‧第2驅動輥20‧‧‧第1驅動輥(驅動輥)21a、21b、21c‧‧‧導引輥22‧‧‧齒輪輥23‧‧‧齒輪輥28‧‧‧嚙合部位29‧‧‧皺褶30‧‧‧旋轉軸40‧‧‧壓花輥40a‧‧‧外周面41‧‧‧壓花部42‧‧‧加壓輥42a‧‧‧外周面43‧‧‧旋轉軸45‧‧‧壓花加工線CD‧‧‧交叉方向MD‧‧‧機械方向(流向)
