Absorbent article featuring a laminated material with a low Poisson's Ratio
View Patent ↗Disclosed is an absorbent article defining a longitudinal direction and a lateral direction perpendicular to the longitudinal direction, the absorbent article including an outercover, the outercover comprising a laminated material including two layers; an absorbent body disposed adjacent the outercover; and a graphic associated with the outercover, wherein the laminated material exhibits a Poisson's Ratio less than 1.0 at 4 percent longitudinal strain using ASTM-E132. The laminated material optimally exhibits a Poisson's Ratio less than 0.75 at 4 percent longitudinal strain using ASTM-E132. The laminated material more optimally exhibits a Poisson's Ratio less than 0.4 at 4 percent longitudinal strain using ASTM-E132.
1. An absorbent article defining a longitudinal direction and a lateral direction perpendicular to the longitudinal direction, the absorbent article comprising:
an outercover, the outercover comprising a laminated material including first and second-layers, the second layer having been joined to the first layer at a point of lamination while the second layer was maintained at a lower tension than the first layer at the point of lamination;
an absorbent body disposed adjacent the outercover; and
a graphic associated with the outercover, wherein the laminated material exhibits a Poisson's Ratio less than 1.0 at 4 percent longitudinal strain using ASTM-E132.
2. The absorbent article of claim 1 , wherein the laminated material exhibits a Poisson's Ratio less than 0.75 at 4 percent longitudinal strain using ASTM-E132.
3. The absorbent article of claim 1 , wherein the laminated material exhibits a Poisson's Ratio less than 0.4 at 4 percent longitudinal strain using ASTM-E132.
4. The absorbent article of claim 1 , wherein a first layer is a film.
5. The absorbent article of claim 1 , wherein a second layer is a spunbond nonwoven.
6. The absorbent article of claim 5 , wherein the second layer is an outermost layer.
7. The absorbent article of claim 1 , wherein the graphic is registered with respect to the article.
8. The absorbent article of claim 1 , wherein the graphic is printed on the outercover.
9. The absorbent article of claim 1 , wherein the outercover is liquid impermeable.
10. An absorbent article defining a longitudinal direction and a lateral direction perpendicular to the longitudinal direction, the absorbent article comprising:
an outercover, the outercover comprising a laminated material including first and second-layers, the second layer having been joined to the first layer at a point of lamination while the second layer was maintained at a lower tension than the first layer at the point of lamination;
an absorbent body disposed adjacent the outercover; and
a graphic associated with the outercover, wherein the laminated material exhibits a Poisson's Ratio less than 2.0 at 6 percent longitudinal strain using ASTM-E132.
11. The absorbent article of claim 10 , wherein the laminated material exhibits a Poisson's Ratio less than 1.5 at 6 percent longitudinal strain using ASTM-E132.
12. The absorbent article of claim 10 , wherein the laminated material exhibits a Poisson's Ratio less than 0.5 at 6 percent longitudinal strain using ASTM-E132.
13. The absorbent article of claim 10 , wherein the outercover is liquid impermeable.
14. An absorbent article defining a longitudinal direction and a lateral direction perpendicular to the longitudinal direction, the absorbent article comprising:
a laminated material including first and second layers, the second layer having been joined to the first layer at a point of lamination while the second layer was maintained at a lower tension than the first layer at the point of lamination;
a graphic associated with the laminated material; and
an absorbent body disposed in the absorbent article, wherein the graphic is registered to the absorbent body, and wherein the laminated material exhibits a Poisson's Ratio less than 1.0 at 4 percent longitudinal strain using ASTM-E132.
15. The absorbent article of claim 14 , further comprising an outercover, wherein the outercover includes the laminated material.
16. The absorbent article of claim 14 , wherein the graphic is printed on the laminated material.
17. A laminated material for use in a product, the laminated material comprising
a film layer including a film; and
a nonwoven layer including a spunbond nonwoven, the nonwoven layer having been joined to the film layer at a point of lamination while the nonwoven layer was maintained at a lower tension than the film layer at the point of lamination, wherein the laminated material exhibits a Poisson's Ratio less than 1.0 at 4 percent longitudinal strain using ASTM-E132.
18. The laminated material of claim 17 , wherein the laminated material exhibits a Poisson's Ratio less than 0.75 at 4 percent longitudinal strain using ASTM-E132.
19. The laminated material of claim 17 , wherein the laminated material, exhibits a Poisson's Ratio less than 0.4 at 4 percent longitudinal strain using ASTM-E132.
20. The laminated material of claim 17 , further comprising an adhesive coupling the film layer to the nonwoven layer.
21. The laminated material of claim 17 , wherein the product is an absorbent article.