Absorbent article with improved surface material
An absorbent article comprises an absorbent body, a liquid-permeable covering layer arranged over a first surface on the absorbent body, and a liquid-permeable liquid-transfer layer arranged between the absorbent body and the liquid-permeable covering layer. The liquid-permeable covering layer comprises a nonwoven material with a pore volume distribution curve with a maximum at a pore radius greater than or equal to 50 μm and with a wetting angle of at least 120°. The liquid-transfer layer comprises a fibrous layer with a pore volume distribution curve with a maximum at a pore radius of from 105 to 325 μm.
1. An absorbent article comprising:
an absorbent body,
a liquid-permeable covering layer arranged over a first surface of the absorbent body, and
a liquid-permeable liquid-transfer layer arranged between the absorbent body and the liquid-permeable covering layer, said liquid-permeable liquid-transfer layer being immediately adjacent said first surface of the absorbent body,
wherein the liquid-permeable covering layer comprises a nonwoven material with a pore volume distribution curve with a maximum at a pore radius greater than or equal to 50 μm and with a wetting angle of at least 120°, and
wherein the liquid-transfer layer comprises a fibrous layer with a pore volume distribution curve with a maximum at a pore radius of from 105 to 325 μm.
2. The absorbent article according to claim 1 , wherein the liquid-permeable covering layer has a pore volume distribution curve with a maximum at a pore radius greater than or equal to 55 μm.
3. The absorbent article according to claim 2 , wherein the liquid-permeable covering layer has a pore volume distribution curve with a maximum at a pore radius of from 55 μm to 60 μm.
4. The absorbent article according to claim 1 , wherein the liquid-permeable covering layer comprises fibers with a fiber fineness of at least 5 dtex.
5. The absorbent article according to claim 1 , wherein the liquid-permeable covering layer has a basis weight of at most 15 g/m 2 .
6. The absorbent article according to claim 1 , wherein the liquid-permeable covering layer comprises a spunbond nonwoven.
7. The absorbent article according to claim 1 , wherein the liquid-transfer layer comprises a polyester wadding bonded with a binding agent.
8. The absorbent article according to claim 1 , wherein the liquid-transfer layer has a pore volume distribution curve with a maximum at a pore radius of from 115 μm to 185 μm.
9. The absorbent article according to claim 8 , wherein the liquid-transfer layer has a pore volume distribution curve with a maximum at a pore radius of from 135 μm to 155 μm.
10. The absorbent article according to claim 1 , wherein the liquid-transfer layer has a cumulative pore volume in the pore size range of from 110 to 350 μm which is more than 60% of the total pore volume.
11. The absorbent article according to claim 10 , wherein the liquid-transfer layer has a cumulative pore volume in the pore size range of from 120 to 230 μm which is more than 40% of the total pore volume.
12. The absorbent article according to claim 11 , wherein the liquid-transfer layer has a cumulative pore volume in the pore size range of from 150 to 180 μm which is more than 15% of the total pore volume.
13. The absorbent article according to claim 1 , wherein the liquid-transfer layer comprises fibers with a fiber fineness of from 6.7 to 11 dtex.
14. The absorbent article according to claim 1 , wherein the liquid-transfer layer has a basis weight of from 10 gsm to 100 gsm, and a bulk of at least 15 cm 3/ g measured at a load of 0.1 kPa.
15. The absorbent article according to claim 1 , wherein the liquid-transfer layer has a pore volume distribution curve with a maximum located at from 155 μm to 165 μm in combination with a cumulative liquid volume of 0.1 mm 3 /mg of sample or more in pores with radii smaller than or equal to 25 μm.
16. The absorbent article according to claim 1 , wherein the article comprises a liquid-impermeable covering layer located over a second surface on the absorbent body opposite the first surface, and in that the liquid-permeable covering layer and the liquid-impermeable covering layer together enclose the absorbent body.
17. The absorbent article according to claim 1 , wherein the first surface on the absorbent body defines a user-facing surface.
18. The absorbent article according to claim 1 , wherein the absorbent body comprises one or more layers of material.
19. The absorbent article according to claim 1 , wherein said liquid-permeable liquid-transfer layer is immediately adjacent said liquid-permeable covering layer.
20. An absorbent article comprising:
an absorbent body,
a liquid-permeable covering layer arranged over a first surface of the absorbent body, and
a liquid-permeable liquid-transfer layer arranged between the absorbent body and the liquid-permeable covering layer, said liquid-permeable liquid-transfer layer being immediately adjacent said first surface of the absorbent body,
wherein the liquid-permeable covering layer comprises a nonwoven material with a pore volume distribution curve with a maximum at a pore radius greater than or equal to 50 μm and with a wetting angle of at least 120°, and wherein the liquid-permeable covering layer comprises fibers with a fiber fineness of at least 5 dtex, and
wherein the liquid-transfer layer comprises a fibrous layer with a pore volume distribution curve with a maximum at a pore radius of from 105 to 325 μm and wherein the liquid-transfer layer comprises fibers with a fiber fineness of from 6.7 to 11 dtex.
21. The absorbent article according to claim 20 , wherein the liquid-transfer layer has a cumulative pore volume in the pore size range of from 110 to 350 μm which is more than 60% of the total pore volume.