Disposable absorbent articles including a first absorbent layer and a second absorbent layer
A disposable absorbent article having a longitudinal centerline and a lateral centerline generally perpendicular to the longitudinal centerline is described herein. The disposable absorbent article has a topsheet; a backsheet; and an absorbent system disposed between the topsheet and the backsheet. The absorbent system has a first and second absorbent core configured such that there is an overlap between the first and second absorbent core and a pair of outboard distances for the first and second absorbent cores.
1. A sanitary napkin having a longitudinal centerline and a lateral centerline generally perpendicular to the longitudinal centerline, the sanitary napkin comprising:
a topsheet;
a backsheet;
a first end region, an opposing second end region and an intermediate region disposed between the first end region and the second end region;
a first absorbent layer disposed between the topsheet and the backsheet, the first absorbent layer having a first end region first absorbent layer width, an intermediate region first absorbent layer width measured along the lateral centerline, and a second end region first absorbent layer width;
a second absorbent layer disposed between the first absorbent layer and the backsheet, the second absorbent layer having a first end region second absorbent layer width, an intermediate region second absorbent layer width measured along the lateral centerline, and a second end region second absorbent layer width,
wherein the respective widths have the following relationships:
the first end region first absorbent layer width is greater than the second end region first absorbent layer width, and the second end region first absorbent layer width is greater than the intermediate region first absorbent layer width, and
the first end region second absorbent layer width is greater than the second end region second absorbent layer width, and the second end region second absorbent layer width is greater than the intermediate region second absorbent layer width,
wherein the first absorbent layer comprises a first end edge and an opposing second end edge, wherein the second absorbent layer comprises a first end edge and an opposing second end edge, and
wherein the first end edge of the first absorbent layer is coterminous with the first end edge of the second absorbent layer or the second end edge of the first absorbent layer is coterminous with the second end edge of the second absorbent layer.
2. The sanitary napkin of claim 1 , wherein the first end region second absorbent layer width is greater than the first end region first absorbent layer width.
3. The sanitary napkin of claim 2 , wherein the second absorbent layer in the first end region extends outboard of the first absorbent layer in the first end region by a first end region outboard distance.
4. The sanitary napkin of claim 3 , wherein the second absorbent layer in the intermediate region extends outboard of the first absorbent layer in the intermediate region by an intermediate region outboard distance.
5. The sanitary napkin of claim 1 , wherein the intermediate region first absorbent layer width is less than the intermediate region second absorbent layer width.
6. The sanitary napkin of claim 5 , wherein a first end region outboard distance is less than an intermediate region outboard distance.
7. The sanitary napkin of claim 6 , wherein the intermediate region outboard distance is between about 5 mm and about 20 mm.
8. The sanitary napkin of claim 1 , wherein the first absorbent layer comprises a first portion, a second portion, and a separation disposed between the first portion and the second portion, wherein the first portion, second portion, and separation generally extend parallel to the longitudinal centerline.
9. The sanitary napkin of claim 8 , wherein the separation is less than 2 times a caliper of at least one of the first portion and the second portion.
10. The sanitary napkin of claim 1 , wherein a second region first absorbent layer width is less than a second region second absorbent layer width.
11. The sanitary napkin of claim 1 , comprising at least one of a distribution layer and a superabsorbent layer.
12. The sanitary napkin of claim 1 , wherein the first absorbent layer comprises a first distribution layer and a first superabsorbent layer and the second absorbent layer comprises a second distribution layer and a second superabsorbent layer.
13. The sanitary napkin of claim 12 , wherein the first distribution layer is joined to the second distribution layer.
14. The sanitary napkin of claim 12 , wherein the first distribution layer is joined to the second superabsorbent layer.
15. The sanitary napkin of claim 1 , wherein the first absorbent layer comprises a first end edge and an opposing second end edge, wherein the first end edge of the first absorbent layer is convex and the second end edge of the first absorbent layer is concave.
16. The sanitary napkin of claim 1 , wherein the second absorbent layer first end edge is concave and the second absorbent layer second end edge is convex.
17. A sanitary napkin having a longitudinal centerline and a lateral centerline generally perpendicular to the longitudinal centerline, the sanitary napkin comprising:
a topsheet;
a backsheet;
a first end region, an opposing second end region and an intermediate region disposed between the first end region and the second end region;
a first absorbent layer disposed between the topsheet and the backsheet, the first absorbent layer having a first end region first absorbent layer width, an intermediate region first absorbent layer width measured along the lateral centerline, and a second end region first absorbent layer width;
a second absorbent layer disposed between the first absorbent layer and the backsheet, the second absorbent layer having a first end region second absorbent layer width, an intermediate region second absorbent layer width measured along the lateral centerline, and a second end region second absorbent layer width,
wherein the respective widths have the following relationships:
the first end region first absorbent layer width is greater than the second end region first absorbent layer width, and the second end region first absorbent layer width is greater than the intermediate region first absorbent layer width, and
the first end region second absorbent layer width is greater than the second end region second absorbent layer width, and the second end region second absorbent layer width is greater than the intermediate region second absorbent layer width,
wherein the first absorbent layer comprises a first end edge and an opposing second end edge, wherein the second absorbent layer comprises a first end edge and an opposing second end edge, and
wherein the first end edge of the first absorbent layer is coterminous with the first end edge of the second absorbent layer and the second end edge of the first absorbent layer is coterminous with the second end edge of the second absorbent layer.
18. The sanitary napkin of claim 17 , wherein at least one of the first end edge and the second end edge of the first absorbent layer is substantially flat.
19. The sanitary napkin of claim 17 , wherein at least one of the first end edge and the second end edge of the second absorbent layer is substantially flat.
20. The sanitary napkin of claim 17 , wherein the second absorbent layer extends outboard of the first absorbent layer in at least one of the first end region, the second end region, and the intermediate region.