Sanitary napkin

Claim 1

An absorbent article having a body with generally vertically elongated sides, comprising: a liquid permeable outer material top layer to be located next to a wearer's body; a liquid impermeable antileakage material bottom layer to be located next to a wearer's shorts; a liquid retentive absorbent element interposed between said top layer and said bottom layer; and a fixing device mounted on said bottom layer and adapted to fix said body to a crotch portion of the wearer's shorts; said fixing device comprising an antislip portion formed over generally an entire surface of said bottom layer, and a pair of fixing elements mounted on a section of said bottom layer; said fixing elements having a first surface in contact with said bottom layer and a second surface having adhesive portions thereon, said adhesive portions comprising a two-layer adhesive structure having a first layer of strong adhesive strength applied to said second surface of the fixing elements, and a second layer of weak adhesive strength applied to said first layer; said second layer being easily releasable from itself; said fixing elements being foldable so as to remain within said vertically elongated sides of the body, and said fixing elements being unfoldable so as to extend outwardly from said vertically elongated sides of the body; said adhesive portion and said antislip portion requiring no release paper.