(1) forming the folded-up section by-folding up a continuous sheet in a width direction of the-continuous sheet, the continuous sheet continuing along a transporting direction, (2) creasing the folded-up section in a folded-up state by pressing continuously the folded-up section along a direction of a fold line of the folded-up section, (3) temporarily-securing the folded-up section in a folded-up state by pressing the folded-up section with a plurality of protrusions that are included in a pressing member, (4) producing the sheet-like member by dividing the continuous sheet with a predetermined pitch in the transporting direction, the continuous sheet having been creased and temporarily-secured, and (5) conveying the produced sheet-like member.
