Patent ID: 7207978
Filing Date: 2007-04-24
Classification: A61F

Abstract:
1. A pull-on disposable diaper having a height direction and a transverse direction being orthogonal to said height direction, said diaper comprising: a pants-type covering component having an inner surface and an outer surface opposed to said inner surface; and a bodily discharge absorbent component; wherein said covering component comprises a front waist covering region, a rear waist covering region and a crotch covering region which define together a waist-hole and a pair of leg-holes; said bodily discharge absorbing component is located on said inner surface of said covering component and extends over said crotch covering region into said front and rear waist covering regions; said bodily discharge absorbing component has transversely opposite lateral edges, which extend parallel to each other in said height direction, and a middle zone between said lateral edges; said bodily discharge absorbing component is formed with a first folding guide extending from the middle zone to respective said lateral edges in said front waist covering region, a second folding guide extending from said middle zone to respective said lateral edges in said rear waist covering region, and a third folding guide extending in said transverse direction between said first and second folding guides; said bodily discharge absorbing component has a folded state in which said absorbing component is folded along said third folding guide so that an outer surface of said absorbing component has sections facing each other, and folded along said first and second folding guides so that an inner surface of said absorbing component has sections facing each other; said diaper further comprises flaps formed along said lateral edges of said bodily discharge absorbing component, each said flap having first and second lateral marginal edges extending parallel to said lateral edges of said bodily discharge absorbing component and first and second ends; each said flap is folded around the associated lateral edge of said bodily discharge absorbing component so that said first and second lateral marginal edges of said flap lie on the side of the outer surface and on the side of the inner surface of said bodily discharge absorbing component, respectively; said first and second ends of each said flap are respectively joined to front and rear ends of said bodily discharge absorbing component lying in said front and rear waist covering regions, respectively; said diaper further comprises first elastic members each attached to said second lateral marginal edge of one of said flaps and contractible in a longitudinal direction of said flap; the facing sections of the outer surface of said absorbing component are free of direct attachment to each other, and contraction of said first elastic members in the longitudinal direction maintains the bodily discharge absorbing component in the folded state; the disposable diaper further comprises second elastic members each of which is attached to one of said flaps in an intermediate zone defined between said first and second lateral marginal edges of said flap and is contractible in said longitudinal direction of said flap; the absorbing component includes, between the lateral edges, a middle portion and side portions on opposite sides of said middle portion; the absorbing component is directly bonded to the inner surface of said covering component in said middle portion, and is not directly bonded to said covering component in said side portions and along said lateral edges; and contraction of said first and second elastic members raises at least said lateral edges of said absorbing component away from said covering component.