PROBLEM TO BE SOLVED: To improve breathability of the upper portion of a waist circumferential region, and to inhibit an exterior sheet in the waist circumferential region from being damaged.SOLUTION: In a disposal diaper 1, a first waist circumferential region 407, which is the upper portion of a waist circumferential region 406, is formed with a turned-back portion 46 and an opposing portion 47 which are stacked so as to improve breathability thereof. A second waist circumferential region 408 below the first waist circumferential region 407 is formed with the turned-back portion 46, an end sheet 5, a second exterior sheet 42 and the opposing portion 47 which are stacked together, and a second waist elastic member 444 is joined between the turned-back portion 46 and the end sheet 5. The horizontal bending resistance of the turned-back portion 46 is equal to or less than 80 mm in the case of a test piece of 20 mm in width and 150 mm in length in 45° cantilever method. As a result, the second waist circumferential region 408 is improved in flexibility so as to easily contract. Consequently, the second waist circumferential region 408 is increased in thickness so as to be strengthened, thereby inhibiting an exterior sheet 4 in the waist circumferential region 406 from being damaged.COPYRIGHT: (C)2014,JPO&INPIT【課題】胴周り領域の上部の通気性を良くするとともに、胴周り領域における外装シートの破損を抑制する。【解決手段】使い捨ておむつ1では、胴周り領域406の上部である第1胴周り領域407が、折り返し部46および対向部47が積層されて形成されることにより通気性が良くなる。第1胴周り領域407の下側の第2胴周り領域408は、折り返し部46、エンドシート5、第2外装シート42および対向部47が積層されて形成され、折り返し部46とエンドシート5との間に第2胴部弾性部材444が接合される。折り返し部46の左右剛軟度は、45°カンチレバー法において幅20mm長さ150mmの試験片の場合に80mm以下である。これにより、第2胴周り領域408の柔軟性が向上されて収縮しやすくなる。その結果、第2胴周り領域408が厚くなって強度が増大するため、胴周り領域406における外装シート4の破損を抑制することができる。【選択図】図5
