MANUFACTURING METHOD OF ABSORBENT ARTICLE

To provide a manufacturing method of an absorbent article in which a certain amount of liquid material is uniformly applied onto a region being an application target.SOLUTION: In any step among absorbent article manufacturing steps, a liquid material L is applied onto a sheet material S which is one of constituent materials of an absorbent article. The absorbent article manufacturing method comprises a step in which the liquid material L ejected from an ejection device 20, is directly applied to the sheet material S running in one direction at a position separated from the ejection device 20 by a prescribed distance. According to the method, an ejected condition of the liquid material L in a state in which the liquid material L is ejected from the ejection device 20 and before arriving at the sheet material S, is imaged and the resulting captured image is acquired, an edge of ejected locus of the liquid material and background in the image is detected by edge detection processing, and quality of the ejected condition of the liquid material L is determined on the basis of the detected edge.SELECTED DRAWING: Figure 1 【課題】一定量の液状物が塗布対象部位に均一に塗布された吸収性物品の製造方法の提供。【解決手段】吸収性物品を製造する工程のうちのいずれかの工程で、吸収性物品の構成材料の一つであるシート材Ｓに液状物Ｌを塗布する。吐出装置２０から吐出された液状物Ｌを、吐出装置２０から所定距離隔てた位置において、一方向に走行するシート材Ｓに直接塗布する工程を備え、吐出装置２０から吐出され、シート材Ｓに到達する前の状態にある液状物Ｌの吐出状態を撮像して画像を取得し、画像における液状物Ｌの吐出軌跡と背景とのエッジをエッジ検出処理によって検出し、検出されたエッジに基づいて、液状物Ｌの吐出状態の良否を判定する吸収性物品の製造方法。【選択図】図１