Absorbent article having acquisition layer
View Patent ↗An absorbent article includes a liquid permeable top sheet, a liquid impermeable back sheet, an absorbent core being arranged between the top sheet and the back sheet, and an acquisition and distribution layer (ADL) of a nonwoven material being arranged between the top sheet and the absorbent core. The nonwoven material has a basis weight of 20-40 g/m 2 , 3-20 through holes per cm 2 , the holes having a diameter in CD and MD of 1-3 mm, and at least 70% by weight of the nonwoven ADL includes fibers having a fiber diameter of 12-22 μm.
1. An absorbent article comprising a liquid permeable top sheet, a liquid impermeable back sheet, an absorbent core being arranged between the top sheet and the back sheet, and an acquisition and distribution layer of a nonwoven material being arranged between the top sheet and the absorbent core, wherein the acquisition and distribution layer includes a longitudinal center-line extending in a direction from a front portion of the absorbent article to a rear portion of the absorbent article, and the liquid permeable top sheet covers the longitudinal center-line of the acquisition and distribution layer, and wherein said nonwoven material has a basis weight of 20-40 g/m 2 , 3-20 through holes per cm 2 , the holes having a diameter in CD and MD of 1-3 mm, and at least 70% by weight of the nonwoven material comprises fibres having a fibre diameter of 12-22 μm.
2. The absorbent article according to claim 1 , wherein at least 70% by weight the nonwoven material comprises fibres having a fibre diameter of at least 15 and less than 19 μm.
3. The absorbent article according to claim 1 , wherein 30% by weight or less of the nonwoven material comprises fibres having a fibre diameter of less than 12 μm.
4. The absorbent article according to claim 1 , wherein the nonwoven material has a basis weight of at least 20 g/m 2 and less than 30 g/m 2 .
5. The absorbent article according to claim 1 , wherein the nonwoven material has a thickness of 0.8-1.2 mm at 0.5 kPa.
6. The absorbent article according to claim 1 , wherein the open area of the nonwoven material is 35-65%.
7. The absorbent article according to claim 1 , wherein the nonwoven material has 3-15 through holes per cm 2 .
8. The absorbent article according to claim 1 , wherein the holes have a diameter in CD and MD of 1.5-2.5 mm.
9. The absorbent article according to claim 1 , wherein the through holes are funnel shaped.
10. The absorbent article according to claim 1 , wherein the nonwoven material is a spunbonded nonwoven material.
11. The absorbent article according to claim 1 , wherein the nonwoven material is a spunbond-meltblown-spunbond (SMS) material.
12. The absorbent article according to claim 11 , wherein the spunbond-meltblown-spunbond (SMS) material comprises fibres having a diameter of 0.1 to 12 μm.
13. The absorbent article according to claim 1 , wherein the top sheet is of a nonwoven material.
14. The absorbent article according to claim 1 , wherein the top sheet is of a non-apertured nonwoven material.
15. The absorbent article according to claim 1 , wherein the top sheet has a basis weight of 10-20 g/m 2 .
16. The absorbent article according to claim 1 , wherein the top sheet is of a spunbonded nonwoven material.
17. The absorbent article according to claim 1 , wherein the liquid permeable top sheet covers a portion of the acquisition and distribution layer having 3-20 through holes per cm 2 .
18. The absorbent article according to claim 1 , wherein a surface of the top sheet covers an entirety of a surface of the acquisition and distribution layer which faces away from the absorbent core.