A diaper includes front and rear waist panels respectively defining front and rear waist regions, a crotch panel defining a crotch region, and an absorbent structure extending in a longitudinal direction. The crotch panel has a base sheet and a pair of leg sheets attached to both lateral edge portions of the base sheet. In vicinities of front and rear end portions of the crotch panel, first joint regions extending in a transverse direction from the base sheet beyond outer lateral edge portions of the respective leg sheets are formed. Through these joint regions, the crotch panel is joined to the front and rear waist panels. Cover sheets adapted to cover the front and rear end portions are joined to an interior crotch sheet of the crotch panel through second joint regions. The cover sheets extend outwardly in the transverse direction beyond the first joint regions.本發明的課題係在於提供構成褲襠區域的褲襠薄片體的兩側緣部不易被捲入其內側且可密接於穿用者之用後即棄式穿著用物品。用以解決課題之手段為,紙尿布(1)係包含:劃定前後腰圍區域(12、13)的前後腰圍薄片體(20、30);劃定褲襠區域(14)的褲襠薄片體(40);及配置在褲襠薄片體(40)的內側並朝縱方向(Y)延伸之吸收體(50)。褲襠薄片體(40)係具有:基礎薄片(41);及固定在基礎薄片(41)的兩側緣部之一對腳彈性化薄片(42)。在褲襠薄片體(40)的前後端緣部(40A、40B)附近,形成有從基礎薄片(41朝腳彈性化薄片(42)的外側緣部(42C)外側向橫方向(X)延伸之第1接合區域,褲襠薄片體(40)接合於前後腰圍薄片體(20、30)。在褲襠薄片體(40)的內面薄片(43),經由第2接合區域接著有用來覆蓋前後端緣部(40A、40B)的蓋薄片(61、62)。蓋薄片(61、62)係較第1接合區域更朝橫方向(X)外側延伸。12‧‧‧前腰圍區域13‧‧‧後腰圍區域14‧‧‧褲襠區域20‧‧‧前腰圍薄片體20A‧‧‧內端緣20B‧‧‧外端緣20C‧‧‧側緣21‧‧‧內層薄片22‧‧‧外層薄片22A、32A‧‧‧折彎部22B、32B‧‧‧延伸部位24‧‧‧第1彈性體25、35‧‧‧固定薄片26‧‧‧第3彈性體30‧‧‧後腰圍薄片體30A‧‧‧內端緣30B‧‧‧外端緣30C‧‧‧側緣31‧‧‧內層薄片32‧‧‧外層薄片23、33‧‧‧圖形顯示薄膜34‧‧‧第2彈性體36‧‧‧第4彈性體40‧‧‧褲襠薄片體40A‧‧‧前端緣部40B‧‧‧後端緣部40C‧‧‧兩側緣部42‧‧‧腳彈性化薄片42C‧‧‧外側緣部45‧‧‧折彎部位46‧‧‧彈性體46A‧‧‧內側彈性體46B‧‧‧外側彈性體46C‧‧‧中間彈性體50‧‧‧吸收體50A、50B‧‧‧前後端緣部50C‧‧‧側緣部61‧‧‧蓋薄片62‧‧‧蓋薄片X‧‧‧橫方向Y‧‧‧縱方向
