Disposable absorbent article having backsheet strips
First Claim
1. A disposable diaper having a front waist region, a back waist region, and a crotch region between the waist regions and comprising:
- an absorbent assembly having an interior surface and an exterior surface and laterally opposing longitudinally extending side flaps, each side flap having longitudinally opposing ends and a longitudinally extending proximal edge, each side flap being attached adjacent to its ends to the interior surface of the absorbent assembly and having a longitudinally extending elastic gathering member attached adjacent to its proximal edge such that when allowed to relax, the elastic gathering member contracts and lifts the proximal edge away from the interior surface of the absorbent assembly, thereby raising the side flap to form a side barrier,the absorbent assembly including a lower covering sheet attached in a cruciform attachment pattern having a longitudinally extending portion and a laterally extending portion intersecting in the crotch region, the longitudinally extending portion having a smaller lateral extent than the laterally extending portion and the laterally extending portion having a smaller longitudinal extent than the longitudinally extending portion, such that quadrantal portions of the lower covering sheet lying outside the cruciform attachment pattern are unrestrained by attachment to any other element of the absorbent assembly, at least one of the quadrantal portions of the lower covering sheet being laterally extensible; and
two laterally opposing longitudinally extending backsheet strips attached to the exterior surface of the lower covering sheet.
1 Assignment
0 Petitions
Accused Products
Abstract
A disposable absorbent article includes two laterally opposing longitudinally extending backsheet strips attached to an exterior surface of an absorbent assembly in laterally opposing attachment zones. Each backsheet strip may include a water-impermeable layer and may be extensible. The absorbent assembly includes laterally opposing side flaps which may be formed by folding portions of the absorbent assembly laterally inward. A longitudinally extending elastic gathering member is attached to each side flap adjacent to its proximal edge. When the article is worn, the elastic gathering members contract and raise the side flaps to form side barriers. The absorbent assembly includes an absorbent core that may contain superabsorbent particles, which may be contained inside pockets. A portion of the absorbent assembly such as the portion that lies between the backsheet strip attachment zones may be extensible and may include a water-impermeable layer.
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Citations
16 Claims
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1. A disposable diaper having a front waist region, a back waist region, and a crotch region between the waist regions and comprising:
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an absorbent assembly having an interior surface and an exterior surface and laterally opposing longitudinally extending side flaps, each side flap having longitudinally opposing ends and a longitudinally extending proximal edge, each side flap being attached adjacent to its ends to the interior surface of the absorbent assembly and having a longitudinally extending elastic gathering member attached adjacent to its proximal edge such that when allowed to relax, the elastic gathering member contracts and lifts the proximal edge away from the interior surface of the absorbent assembly, thereby raising the side flap to form a side barrier, the absorbent assembly including a lower covering sheet attached in a cruciform attachment pattern having a longitudinally extending portion and a laterally extending portion intersecting in the crotch region, the longitudinally extending portion having a smaller lateral extent than the laterally extending portion and the laterally extending portion having a smaller longitudinal extent than the longitudinally extending portion, such that quadrantal portions of the lower covering sheet lying outside the cruciform attachment pattern are unrestrained by attachment to any other element of the absorbent assembly, at least one of the quadrantal portions of the lower covering sheet being laterally extensible; and two laterally opposing longitudinally extending backsheet strips attached to the exterior surface of the lower covering sheet. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A disposable diaper having a front waist region, a back waist region, and a crotch region between the waist regions and comprising:
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an absorbent assembly having an interior surface and an exterior surface and laterally opposing longitudinally extending side flaps, each side flap having longitudinally opposing ends and a longitudinally extending proximal edge, each side flap being attached adjacent to its ends to the interior surface of the absorbent assembly and having a longitudinally extending elastic gathering member attached adjacent to its proximal edge such that when allowed to relax, the elastic gathering member contracts and lifts the proximal edge away from the interior surface of the absorbent assembly, thereby raising the side flap to form a side barrier, the absorbent assembly including a lower covering sheet attached in a cruciform attachment pattern having a longitudinally extending portion and a laterally extending portion intersecting in the crotch region, the longitudinally extending portion having a smaller lateral extent than the laterally extending portion and the laterally extending portion having a smaller longitudinal extent than the longitudinally extending portion, such that quadrantal portions of the lower covering sheet lying outside the cruciform attachment pattern are unrestrained by attachment to any other element of the absorbent assembly, at least one of the quadrantal portions of the lower covering sheet being laterally extensible; and two laterally opposing longitudinally extending backsheet strips attached to the exterior surface of the lower covering sheet, each of the backsheet strips having a laterally extending front waist edge and a longitudinally opposing laterally extending back waist edge, at least one of the backsheet strips being laterally extensible and its front waist edge and its back waist edge.
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Specification