| 摘要 |
PROBLEM TO BE SOLVED: To facilitate attachment in the back side of a wearer at the time of changing.SOLUTION: A disposable diaper 1 is such that: a stretchable film 100 is arranged between a top sheet 2A and a back sheet 2B at a back side B than an absorber 2C; and the stretchable film 100 has a structure where at least one stretchable layer 100C is sandwiched between two non-stretchable layers 100A/100B, and a joint 100X between the non-stretchable layers 100A/100B, and the stretchable layer 100C is intermittently present in the product width direction W. When the disposable diaper 1 is in a natural state, a plurality of wrinkles 200 extending in the product longitudinal direction L in the back sheet 2B are formed so as to reach an edge E1 of the back side B. A standard deviation on the number of the wrinkles 200 in a plurality of areas of X1-Xn having a prescribed length in the product longitudinal direction L and extending in the product width direction W is in a range of 0.3-2.0. |
