The invention provides a disposable article of wear adapted to prevent migration of an indicator to an absorbent structure and to cause the indicator to undergo a rapid change in color when a bodily fluid is excreted. A disposable diaper (1) has an inner sheet (11), an outer sheet (12), and an absorbent structure (20) situated between the inner and outer sheets (11, 12). An indicator (15) is formed on a first outer sheet (13) on a face thereof opposing the absorbent structure (20). The indicator (15) contains a heat-melting polymer, a chemical indicator that exhibits a color reaction, and a plasticizing oil. The absorbent structure (20) has an absorbent core (21), and a liquid-diffusing cover sheet (22) covering the core (21). A hydrophilic bottom sheet (40) is arranged between the bottom face (21b) of the core (21) and the bottom face area (24) of the cover sheet (22). The lengthwise dimension (W1) in a lateral direction (X) of the bottom sheet (40) is greater than the lengthwise dimension (W2) in the lateral direction (X) of an area (15a) where the indicator (15) is formed, but smaller than the dimension (W3) of the core (21).本發明之課題在提供一種,防止顯示劑往吸液構造體移行的情形,並且在排泄出體液之際,快速使顯示劑變色之用後即棄式穿著用物品。解決手段,紙尿褲(1)具有:內面薄片(11);外面薄片(12);以及位在該等內外面薄片(11、12)之間的吸液構造體(20)。在與第1外面薄片(13)的吸液構造體(20)對向的面形成有顯示劑(15)。顯示劑(15)包含:熱熔融性的聚合物;顯示顯色反應的指示藥;以及可塑化油。吸液構造體(20)具有:吸液性的芯材(21);覆蓋芯材(21)的液擴散性的被覆薄片(22)。在芯材(21)的底面(21b)、與被覆薄片(22)的底面區域(24)之間,配置有親水性的底面薄片(40)。底面薄片(40)的橫向(X)的長度尺寸(W1),是比形成有顯示劑(15)的區域(15a)的橫向(X)的長度尺寸(W2)更大,且比芯材(21)的其尺寸(W3)更小。11...內面薄片21a...吸收面21...芯材W3...長度尺寸21b...底面40...底面薄片W1...長度尺寸22c...側緣22...被覆薄片23...吸收區域24...底面區域22a...前端緣22b...後端緣22c...側緣15a...區域W2...長度尺寸13(12)...第1外面薄片15...顯示劑31...第1卡合手段32...帶片14...第2外面薄片33...鉤要素5...側緣16...腿彈性體7...後端緣6...前端緣34...第2卡合手段
