Method for manufacturing composite for continuous sheet used in absorbent articles, manufacturing apparatus, and method for manufacturing absorbent article
A method in which a composite for a continuous sheet used in absorbent articles is manufactured by pasting a cut sheet to a continuous sheet at a predetermined pasting pitch. The method has the steps of: holding the cut sheet in a state of surface contact in a holding unit that travels along a circular path and separating the cut sheet from the holding unit when the holding unit moves past a handover position established on the circular path, and pasting and handing over the cut sheet to the continuous sheet travelling through a position in the vicinity of the handover position. In the handover step, the holding force for holding the cut sheet is reduced and the suction force for suctioning the cut sheet toward the continuous sheet is applied through the continuous sheet, whereby the cut sheet is pasted to the continuous sheet without being pinched between the holding unit and the continuous sheet.本發明之課題,在於將單張狀薄片黏貼於連續薄片之際所發生的皺褶加以抑制。其解決方法係將單張狀薄片以既定黏貼間距黏貼在連續薄片,藉此製造出吸收性物品之連續薄片的複合體之方法。該方法之特徵為具有:在前述單張狀薄片以面接觸狀態保持在沿環繞軌道移動之保持部的步驟;以及當前述保持部通過被設定在前述環繞軌道的交接位置之際,使前述單張狀薄片從前述保持部脫離,而黏貼交接至在前述交接位置之鄰近位置行走的前述連續薄片的步驟。在前述交接中,將用於保持前述單張狀薄片的保持力減弱,並且將前述單張狀薄片往前述連續薄片側吸引之吸引力隔著前述連續薄片發揮作用,藉此使前述單張狀薄片不被前述保持部與前述連續薄片所挾壓而黏貼於前述連續薄片。7...單張狀薄片(側翼)7a...第1連續薄片(側翼之基材)8a...第2連續薄片(連續薄片、側面薄片之基材)8b...連續薄片的複合體20...單張狀裝置21...單張狀輥21c...單張狀刀30...黏貼裝置31...旋轉筒32...保持墊(保持部)32s...保持面33h...吸氣孔33p...空氣流路33rn...負壓室33rp...正壓室50...吸引輸送帶(吸引機構、吸氣機構、行走機構)52...無端帶54...吸氣孔60...加壓輥Pin...承接位置Pout...交接位置Pn...鄰近位置P7...黏貼間距P30...位置C20...旋轉軸C60...旋轉軸Dc...環繞方向Dr...環繞半徑方向Tr...環繞軌道B1...切斷部位V7a...供給速度V20...周速V32...環繞速度
