Nonwoven and absorbent articles containing the same
AssigneeThe Procter & Gamble Company
InventorsZhe Liu, Jiahui Wang, Lifeng Zhao
Life of this patent
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Abstract
The present disclosure relates to an absorbent article comprising a liquid pervious topsheet, a liquid impervious backsheet, an absorbent core disposed between the topsheet and the backsheet, and an intermediate layer disposed between the topsheet and the absorbent core, wherein the intermediate layer comprises a nonwoven which comprises a plurality of apertures, absorbent fibers, and ultrafine fibers. The nonwoven comprises the ultrafine fibers of about 3% to about 35% by weight of the nonwoven, and at least most of the plurality of apertures have a hydraulic diameter in the range of about 600 μm to about 4500 μm.
Claims18
An absorbent article comprising:
- a liquid pervious topsheet;
- a liquid impervious backsheet;
- an absorbent core disposed between the topsheet and the backsheet;
- and
- an intermediate layer disposed between the topsheet and the absorbent core, the intermediate layer comprising a nonwoven;
- wherein the nonwoven comprises:
- a plurality of apertures;
- absorbent fibers;
- hydrophobic ultrafine fibers of about 3% to about 35% by weight of the nonwoven;
- wherein the absorbent fibers are entangled with the hydrophobic ultrafine fibers;
- and
- wherein the hydrophobic ultrafine fibers have a diameter no greater than about 2 μm;
- and
- wherein at least most of the plurality of apertures have a hydraulic diameter in the range of about 600 μm to about 4500 μm.
An absorbent article comprising:
- a liquid pervious topsheet;
- a liquid impervious backsheet;
- an absorbent core disposed between the topsheet and the backsheet;
- and
- an intermediate layer disposed between the topsheet and the absorbent core, the intermediate layer comprising a nonwoven;
- wherein the nonwoven comprises a plurality of apertures, absorbent fibers, and hydrophobic ultrafine fibers;
- wherein the hydrophobic ultrafine fibers have a diameter no greater than about 2 μm;
- wherein the hydrophobic ultrafine fibers are split conjugate fibers;
- wherein the split conjugate fibers comprise two components divided into two or more segments arranged in a circumferentially alternating pattern or in a layered pattern;
- wherein the absorbent fibers are staple fibers having a fiber length no less than about 30 mm;
- and
- wherein the nonwoven has an air permeability no less than about 110 m3/m2/min as measured by the Air Permeability Test, and a wicking rate no less than about 120 mm @ 300 s as measured by the Wicking Rate Test.
An absorbent article comprising:
- a liquid pervious topsheet;
- a liquid impervious backsheet;
- an absorbent core disposed between the topsheet and the backsheet;
- and
- an intermediate layer disposed between the topsheet and the absorbent core, the intermediate layer comprising a nonwoven;
- wherein the nonwoven comprises a plurality of apertures, absorbent fibers, and hydrophobic ultrafine fibers;
- wherein the hydrophobic ultrafine fibers have a diameter no greater than about 2 μm;
- wherein the absorbent fibers are entangled with the hydrophobic ultrafine fibers;
- wherein the hydrophobic ultrafine fibers are split conjugate fibers;
- wherein the split conjugate fibers comprise two components divided into two or more segments arranged in a circumferentially alternating pattern or in a layered pattern;
- and
- wherein the nonwoven has a fiber mixing extent of no less than about 0.040 as measured by Fiber Mixing Extent Test disclosed herein.
Dependencies are inferred from the claim text.