An adhesive is independently ejected from a plurality of ejecting sections to an outer layer nonwoven fabric continuum conveyed in a conveyance direction. At this time, the adhesive is ejected to three partial regions, of an opening portion formation region in which an opening portion is formed, which are divided by two straight lines passing an inside of the opening portion formation region from the ejecting sections corresponding to the partial regions. Further, when ejection of the adhesive from the ejecting section is stopped, an adhesive non-application region is formed in the inner partial region held between the outermost two partial regions of the three partial regions.