Absorbent article having acquisition layer

Patent metadata

Field	Value
Publication number	US-2016287450-A1
Application number	US-201315037431-A
Country	US
Kind code	A1
Filing date	Dec 3, 2013
Priority date	Dec 3, 2013
Publication date	Oct 6, 2016
Grant date	—

Abstract

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 fibres having a fibre diameter of 12-22 μm.

First claim

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 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 meltblown material comprises fibres having a diameter of 0.1 to 12 μm.

13 . The absorbent article according to claim 1 , wherein the topsheet is of a nonwoven material.

14 . The absorbent article according to claim 1 , wherein the topsheet is of a non-apertured nonwoven material.

15 . The absorbent article according to claim 1 , wherein the topsheet has a basis weight of 10-20 g/m 2 .

16 . The absorbent article according to claim 1 , wherein the topsheet is of a spunbonded nonwoven material.

Assignees

• Sca Hygiene Prod Ab

Inventors

• Andersson Patrik
• Grahn Louise
• Abbas Shabira

Classifications

• A61F2013/53782

  with holes · CPC title

• A61F13/49014

  the elastic means is located at the side panels · CPC title

• A61F2013/1556

  Water permeability · CPC title

• A61F13/51121 Primary

  characterised by the material · CPC title

• A61F2013/530481

  having superabsorbent materials, i.e. highly absorbent polymer gel materials · CPC title