US Patent 7419480 Disposable diaper

A disposable diaper has a pair of barrier cuffs. Each of the barrier cuffs includes inner and outer sheet strips provided separately of each other. The first and second sheet strips include bottom side edges fixed to the inner surface of the diaper and top side edges left free from the inner surface. The bottom side edge of the first sheet strip is inwardly spaced from the bottom side edge of the second sheet strip. The first and second sheet strips are locally bonded to each other in a part of the overlapping area of these sheet strips. One of the first and second sheet strips has its top side edge spaced from the top side edge of the other sheet strip and is provided with an elastic member.