A disposable diaper 1A of the invention includes an absorbent assembly 5 provided with a skin facing sheet 2, a backsheet 3, and an absorbent member 4, and a pair of panel materials 6b provided with a fastening tape 61 and extending from both side portions 5s of a rear portion B. The absorbent assembly 5 includes flap regions 52b extending widthwisely outward from end portions 4e of the absorbent member 4 between the pair of panel materials 6b. An embossment line 9L formed by disposing a plurality of embossments 9 in the Y direction is arranged with intervals in the X direction in the flap regions 52b. An embossment line 9L1 among the plurality of embossment lines 9L extends up to close to the absorbent member 4 beyond a position of an outside end front portion 6bs1 in the Y direction of a side edge 6bs on a side where the fastening tape 61 is attached to the panel materials 6b.本創作之拋棄式尿布1A包含:吸收性本體5,其具有肌膚對向片材2、背面片材3、及吸收體4;以及一對翼片材6b,其具有黏扣帶61,且自背側部B之兩側部5s延伸出。吸收性本體5具有翼區域52b,該翼區域52b於一對翼片材6b之間,自吸收體4之端部4e朝Y方向外側延伸出。於翼區域52b,於X方向隔開間隔地配置有沿Y方向配置複數個壓紋9而成之壓紋行9L。排列有複數條之壓紋行9L中之1條壓紋行9L1係越過翼片材6b之安裝有黏扣帶61之側之側緣6bs之Y方向外側前端6bs1之位置而延伸至吸收體4側。1A‧‧‧尿布2‧‧‧肌膚對向片材3‧‧‧背面片材4‧‧‧吸收體4e‧‧‧吸收體之縱向(Y方向)之端部6b‧‧‧翼片材6bs‧‧‧側緣6bs1‧‧‧前端9‧‧‧壓紋9L‧‧‧壓紋行9L1‧‧‧較長之壓紋行21‧‧‧正面片材22‧‧‧側片材32‧‧‧不織布52b‧‧‧翼區域61‧‧‧黏扣帶61e‧‧‧縱向外側端緣90c‧‧‧中央壓紋群90s‧‧‧側部壓紋群CL‧‧‧中心線IL1‧‧‧第1假想線IL2‧‧‧第2假想線IL3‧‧‧第3假想線T1‧‧‧形成側部壓紋群之壓紋行之全長T2‧‧‧自吸收體之端部朝縱向(Y方向)外側之區域之長度T3‧‧‧除較長之壓紋行以外之壓紋行之全長W1‧‧‧側部壓紋群與中央壓紋群之間之間隔W2‧‧‧構成側部壓紋群之壓紋行彼此間之間隔W3‧‧‧構成中央壓紋群之壓紋行彼此間之間隔X、Y‧‧‧方向
