ABSORBENT ARTICLE MANUFACTURING METHOD

摘要

PROBLEM TO BE SOLVED: To provide an underpants-type diaper which is less likely to cause detachment of a leg peripheral elastic member while sufficiently securing welding strength at side parts.SOLUTION: An absorbent article manufacturing method includes: a proces of forming an adhesion region on both sides of a cutting position in a conveyance direction of a lower side belt-like member; a process of arranging a part of a leg peripheral elastic member in a state of being expanded in a direction including a component of the conveyance direction to be overlapped with the adhesion region; a process of superposing an upper side belt-like member on the lower side belt-like member and the leg peripheral elastic member to adhere them to one another in the adhesion region; a proces of folding the lower side belt-like member and the upper side belt-like member; a process of welding the lower side belt-like member and the upper side belt-like member; and a process of cutting the lower side belt-like member, the upper side belt-like member, the leg peripheral elastic member together at the cutting position to separate a lower side exterior member and an upper side exterior member that are formed into a shape of underpants and contracting the expanded leg peripheral elastic member from a position where the leg peripheral elastic member is cut toward the adhesion region while the leg peripheral elastic member is displaced relatively to the lower side exterior member and the upper side exterior member.