Absorbent article having an absorbent assembly with integral containment flaps
View Patent ↗An absorbent assembly includes a liquid permeable bodyside liner, a liquid impermeable backsheet, and an absorbent structure disposed between the liner and the backsheet. A pair of laterally opposed containment flaps is integrally formed from the bodyside liner.
1. A disposable absorbent assembly for use with an absorbent article having a front waist region, a back waist region, and a crotch region, the absorbent assembly comprising:
a liquid permeable bodyside liner;
a liquid impermeable backsheet;
an absorbent structure disposed between the liner and the backsheet; and
a pair of laterally opposed containment flaps integrally formed from the bodyside liner, the backsheet enclosed by the bodyside liner within the containment flaps, wherein the containment flaps are formed by folding the bodyside liner over and adhering the bodyside liner to itself along two longitudinally extending seams with adhesive at least in the crotch region of the absorbent article.
2. The disposable absorbent assembly set forth in claim 1 wherein the backsheet is attached to an inward-facing side of the bodyside liner within the containment flaps.
3. The disposable absorbent assembly set forth in claim 1 wherein the backsheet extends towards a free edge of the containment flaps.
4. The disposable absorbent assembly set forth in claim 3 wherein the backsheet extends to about the free edge of each containment flap.
5. The disposable absorbent assembly set forth in claim 1 wherein the bodyside liner includes a liquid permeable central zone and liquid impermeable lateral outer zones, the containment flaps being formed from the liquid impermeable lateral outer zones.
6. The disposable absorbent assembly set forth in claim 1 wherein each containment flap includes at least one elastic member.
7. The disposable absorbent assembly set forth in claim 1 wherein each containment flap includes a fixed edge and a free edge opposite the fixed edge, the free edge of each containment flap being attached to the bodyside liner within at least one of the front waist region and the back waist region to define a flap attachment zone.
8. The disposable absorbent assembly set forth in claim 1 wherein the bodyside liner extends around at least a portion of the backsheet and the absorbent structure.
9. An absorbent article comprising:
a chassis; and
the disposable absorbent assembly set forth in claim 1 attached to the chassis.
10. An absorbent assembly for use with an absorbent article having a front waist region, a back waist region, and a crotch region, the absorbent assembly comprising:
a bodyside liner including a central zone having a first liquid permeability and lateral outer zones each having a second liquid permeability, the second liquid permeability of the lateral outer zones being less than the first liquid permeability of the central zone;
a liquid impermeable backsheet;
an absorbent structure disposed between the liner and the backsheet; and
a pair of laterally opposed containment flaps integrally formed from the bodyside liner, wherein the containment flaps are adhered to itself along two longitudinally extending seams with adhesive at least in the crotch region of the absorbent article, each of the longitudinally extending seams overlying the absorbent structure.
11. The absorbent assembly set forth in claim 10 wherein the containment flaps are formed from the lateral outer zones of the bodyside liner.
12. The absorbent assembly set forth in claim 10 wherein the containment flaps are formed separately from and attached to the portion of the bodyside liner defining the central zone.
13. The absorbent assembly set forth in claim 10 wherein the lateral outer zones are liquid impermeable.
14. The absorbent assembly set forth in claim 10 wherein the lateral outer zones have a first hydrostatic head, and the central zone has a second hydrostatic head greater than the first hydrostatic head.
15. The absorbent assembly set forth in claim 14 wherein the ratio of the first hydrostatic head to the second hydrostatic head is at least about 2.
16. The absorbent assembly set forth in claim 10 wherein the central zone comprises a liquid permeable central liner, and the lateral outer zones comprise liquid impermeable outer liners, wherein the liquid impermeable outer liners are attached to laterally opposing sides of the central liner.
17. The absorbent assembly set forth in claim 16 wherein the containment flaps are formed from the outer liners.
18. The absorbent assembly set forth in claim 17 wherein the containment flaps are formed by folding the outer liners over and adhering the respective outer liner to itself.
19. An absorbent assembly comprising a liquid permeable bodyside liner and an absorbent structure, a pair of laterally opposed containment flaps being integrally formed from the bodyside liner and formed by folding the bodyside liner over about a foldline and adhering the bodyside liner to itself along two longitudinally extending adhesive seams, each of the longitudinally extending seams overlying the absorbent structure, each containment flap including a fixed edge and a free edge opposite the fixed edge, each of the adhesive seams being adjacent the foldline and disposed on an inner side of the fixed edge of the respective containment flap, each free edge of the containment flap being attached to the bodyside liner within a pair of flap attachment zones, each of the flap attachment zones of the respective pair of flap attachment zones being spaced apart and the respective adhesive seam extending longitudinally between the spaced apart attachment zones.
20. The absorbent assembly set forth in claim 19 further comprising a liquid impermeable backsheet wherein the backsheet extends into the containment flaps.
21. An absorbent article comprising:
a chassis; and
an absorbent assembly set forth in claim 19 attached to the chassis.
22. The absorbent article as set forth in claim 21 wherein the chassis is liquid impermeable.
23. The absorbent article as set forth in claim 21 wherein the chassis is liquid permeable.
24. The absorbent article as set forth in claim 21 wherein the bodyside liner extends around at least a portion of the absorbent structure.
25. The absorbent article as set forth in claim 19 wherein each of the adhesive seams extends the entire distance between the respective spaced apart attachment zones.