| 摘要 |
PROBLEM TO BE SOLVED: To provide a pants-type disposable diaper, which improves fitness from the gluteal cleft to the crotch, and the crotch area of which is less likely to be bulky when worn.SOLUTION: A bent fit portion 40, which is bent so as to enter the gluteal cleft of a wearer by contracting in the width direction, is provided in a gluteal cleft facing portion of a back section B. Each of elongated and curved ventral elastic members 28 leads from a right side seal portion 21 of a front section F along a right leg opening to the right side of the gluteal cleft facing portion; changes direction forward while crossing the gluteal cleft facing portion in the width direction from right to left; and leads from the left side of the gluteal cleft facing portion along a left leg opening to a left side seal portion 21 of the front section F. The ventral elastic members 28 are fixed in a state of being extended by a predetermined elongation rate in their longitudinal direction, and exert a contractile force on a portion along the right and left leg openings at least from the front section F to the side of the gluteal cleft facing portion of the back section B. |
