Patent ID: 7687679

Claim:
A body fluid absorbent wearing article having a longitudinal direction, a transverse direction and a thickness direction, said article comprising: a front waist region and a rear waist region extending in said transverse direction, and a crotch region extending between said waist regions in said longitudinal direction; an excrement receiving structure extending at least in said crotch region; and a liquid-absorbent structure having a liquid-absorbent surface adapted to face a wearer's skin; wherein said excrement receiving structure has a plurality of passages defined by flexible walls; each of said plurality of passages has a first opening facing said liquid-absorbent surface and a second opening facing away from said liquid-absorbent surface; said flexible walls are made of flexible sheets bonded to each other at bonding regions between the passages; said excrement receiving structure has a middle zone separable from said liquid-absorbent surface in said thickness direction; said passages have a gradually decreasing diameter from the second openings towards the first openings; each of said bonding regions is gradually enlarged from the first opening towards the second opening; and a ratio of an area occupied by said second openings to an area of the excrement receiving structure is 80% or more.