Patent ID: 8226623

Claim:
A development type paper diaper adapted to be worn on a human body for absorbing and holding excrement, comprising a back sheet, a first absorbent, a leakage preventing sheet allowing no liquid permeation, a second absorbent and a top sheet providing a body contact surface in the recited order, wherein said first absorbent extends, when worn, from the back side through the crotch to the abdomen side of the user and said second absorbent extends, when worn, from the back side to the crotch of the user, said second absorbent leaves said first absorbent from said crotch to said back side thereby to form a pocket for holding the excrement between said first absorbent and said second absorbent, said leakage preventing sheet, when viewed in section along a longitudinal axis of the diaper, extends from a terminal end thereof positioned substantially at a midpoint of the crotch of the user to the back side of the user and is arranged to contact in said pocket with said second absorbent therealong the entire length of the leakage preventing sheet that is contactable with the second absorbent throughout the entirety of said pocket, and said top sheet, when viewed in section along a longitudinal axis of the diaper, is so conformed to the shape of said pocket so as to follow an outline of the pocket throughout the entirety of said pocket in order to cover said leakage preventing sheet and to cover said first absorbent, said leakage preventing sheet and said second absorbent, throughout said outline of said pocket and within said pocket on top and bottom sides of said pocket so as to conform to the shape of said pocket between said top and bottom sides of said pocket, and exit said pocket so as to continue toward said abdomen side of the user.