A disposable diaper (1A) is equipped with a central absorbent body (4) spanning from a back-side section (A) to an abdomen-side section (B), and with waist flaps (6a, 6b) having a hydrophilic sheet (7) disposed therein. The hydrophilic sheet (7) has an inner hydrophilic sheet (71) and an outer hydrophilic sheet (72) disposed on the side of a surface not in contact with the skin. The outer hydrophilic sheet (72) uses elements having greater liquid diffusion properties that the inner hydrophilic sheet (71). The inner hydrophilic sheet (71) and outer hydrophilic sheet (72) are disposed in a waist region (A1) that includes the region between the edge (61) of the wast flap (6a) on the back-side section (A) and the edge (41) of the absorbent body (4). On the waist flap (6a), gathers that extend in the width direction (X direction) of the diaper (1A) are formed in an elastic waist member (8) disposed within the waist flap (6a).本發明之拋棄式尿片(1A)係自背側部(A)跨及腹側部(B)而於中央具備吸收體(4),且於腰部襟翼(6a、6b)處配置有親水性片材(7)而形成。親水性片材(7)具有內側親水性片材(71)、及配置於其非肌膚接觸面側之外側親水性片材(72)。外側親水性片材(72)與內側親水性片材(71)相比,使用液體之擴散性更高者。內側親水性片材(71)及外側親水性片材(72)係配置於腰部區域(A1),該腰部區域(A1)包含背側部(A)之腰部襟翼(6a)之端邊(61)與吸收體(4)之端邊(41)之間的區域。於腰部襟翼(6a)處藉由腰部彈性構件(8)而形成有褶皺,該腰部彈性構件(8)以沿尿片(1A)之寬度方向(X方向)伸展之狀態而配置於腰部襟翼(6a)之內部。1A...拋棄式尿片2...表面片材3...背面片材4...吸收體6a、6b...腰部襟翼7...親水性片材8...腰部彈性構件9...黏扣帶10...腿箍10a...腿部褶皺形成用彈性伸縮構件11...立體防護形成用片材11a...立體防護形成用彈性構件41...吸收體之端邊61...腰部襟翼之端邊A...背側部A1、B1...腰部區域B...腹側部C...胯下部CL...中心線X、Y...方向Y1...線
