Sanitary napkin
First Claim
1. A sanitary napkin comprisinga liquid-permeable topsheet,a backsheet, anda liquid-absorbent layer disposed between the topsheet and the backsheet,wherein the liquid-absorbent layer has a vagina-facing region on a longitudinal centerline of the sanitary napkin configured to face only a wearer'"'"'s vaginal opening and side regions on both sides of the vagina-facing region configured to face only areas of a wearer'"'"'s crotch other than the wearer'"'"'s vaginal opening,wherein the liquid-absorbent layer comprises a lower absorbent core and an upper absorbent core disposed on a body surface of the lower absorbent core, wherein the upper absorbent core has a smaller area than the lower absorbent core and lies only within the vagina-facing region of the liquid absorbent layer,wherein said liquid-absorbent layer further comprises two hinge lines, each extending in the longitudinal direction along opposite lateral boundaries between the vagina-facing region and the side regions of the liquid absorbent layer, andwherein the hinge lines each comprises a plurality of linear cuts extending, along a maximum dimension of the linear cuts, in intervals along a single line in the longitudinal direction of the sanitary napkin and penetrating at least a portion of a thickness of the lower absorbent core, there being no linear cuts in the vagina-facing region,said sanitary napkin further comprising outer compression lines, wherein the liquid absorbent layer is compressed together with the topsheet, on both sides of the longitudinal centerline and extend longitudinally of the sanitary napkin, wherein the outer compression lines are laterally located entirely outside of the hinge lines.
1 Assignment
0 Petitions
Accused Products
Abstract
A sanitary napkin includes a liquid-permeable topsheet, a backsheet, and a liquid-absorbent layer disposed between the topsheet and the backsheet. The liquid-absorbent layer has a vagina-facing region on a longitudinal centerline of the sanitary napkin and side regions on both sides of the vagina-facing region. The liquid-absorbent layer has a greater thickness and a greater bending stiffness in the vagina-facing region than in the side regions to provide hinge lines along boundaries between the vagina-facing region and the side regions.
30 Citations
15 Claims
-
1. A sanitary napkin comprising
a liquid-permeable topsheet, a backsheet, and a liquid-absorbent layer disposed between the topsheet and the backsheet, wherein the liquid-absorbent layer has a vagina-facing region on a longitudinal centerline of the sanitary napkin configured to face only a wearer'"'"'s vaginal opening and side regions on both sides of the vagina-facing region configured to face only areas of a wearer'"'"'s crotch other than the wearer'"'"'s vaginal opening, wherein the liquid-absorbent layer comprises a lower absorbent core and an upper absorbent core disposed on a body surface of the lower absorbent core, wherein the upper absorbent core has a smaller area than the lower absorbent core and lies only within the vagina-facing region of the liquid absorbent layer, wherein said liquid-absorbent layer further comprises two hinge lines, each extending in the longitudinal direction along opposite lateral boundaries between the vagina-facing region and the side regions of the liquid absorbent layer, and wherein the hinge lines each comprises a plurality of linear cuts extending, along a maximum dimension of the linear cuts, in intervals along a single line in the longitudinal direction of the sanitary napkin and penetrating at least a portion of a thickness of the lower absorbent core, there being no linear cuts in the vagina-facing region, said sanitary napkin further comprising outer compression lines, wherein the liquid absorbent layer is compressed together with the topsheet, on both sides of the longitudinal centerline and extend longitudinally of the sanitary napkin, wherein the outer compression lines are laterally located entirely outside of the hinge lines.
Specification