Abstract: To prevent a paper diaper reliably from slipping down at a body liquid absorbing time, and to bring the paper diaper into close contact along the line of a body thereby to improve the wearing comfortableness. An armoring sheet includes: waist portion elastic members, and so on; hip surrounding elastic member groups, and so on arranged at the front F and the back B; and a plurality of curved elastic member groups extending, at each of the front F and the back B, from one side jointing edge to the crotch side, reaching the other side jointing edge while passing over the crotch side, and arranged at a spacing without intersecting with each other. The curved elastic member groups have their starting/trailing ends connected at a predetermined spacing substantially over the range from the upper portion to the lower portion of the side portion jointing edge.

Abstract: To prevent a paper diaper reliably from slipping down at a body liquid absorbing time, and to bring the paper diaper into close contact along the line of a body thereby to improve the wearing comfortableness. An armoring sheet includes: waist portion elastic members, and so on; hip surrounding elastic member groups, and so on arranged at the front F and the back B; and a plurality of curved elastic member groups extending, at each of the front F and the back B, from one side jointing edge to the crotch side, reaching the other side jointing edge while bypassing the crotch side, and arranged at a spacing without intersecting with each other. The curved elastic member groups have their starting/trailing ends connected at a predetermined spacing substantially over the range from the upper portion to the lower portion of the side portion jointing edge.