ABSORBENT CORE
Absorbent core for disposable absorbent articles having better recovery and resiliency.
1 . An absorbent article absorbent core comprising a substrate layer, a layer of absorbent polymer material, a layer of adhesive, and a layer of foam material;
the substrate layer comprises a substrate layer first surface and a substrate layer second surface,
the layer of absorbent polymer material comprises a layer of absorbent polymer material first surface and a layer of absorbent polymer material second surface,
the layer of adhesive comprises a layer of adhesive first surface and a layer of adhesive second surface,
the layer of absorbent polymer material is comprised between the layer of adhesive and the substrate layer;
the layer of absorbent polymer material second surface is in contact with the substrate layer first surface; and
the layer of absorbent polymer material first surface is in contact with the layer of adhesive second surface.
2 . An absorbent core according to claim 1 comprising a cover layer comprising a cover layer first surface and a cover layer second surface, wherein the cover layer second surface is in contact with the layer of adhesive first surface.
3 . An absorbent core according to claim 1 , wherein the substrate layer comprises the layer of foam material.
4 . An absorbent core according to claim 1 , wherein the substrate layer is constituted by the layer of foam material.
5 . An absorbent core according to claim 1 , wherein the foam material is at least one of melamine foam or polyurethane foam.
6 . An absorbent core according to claim 1 , wherein the foam material is hydrophilic.
7 . An absorbent core according to claim 1 , wherein the layer of foam material has a thickness from about 0.5 mm to about 3 mm.
8 . An absorbent core according to claim 7 , wherein the layer of foam material has a thickness from about 1 mm to about 2 mm.
9 . An absorbent core according to claim 1 , wherein the foam material has bulkiness from about 20 cm 3 /g to about 200 cm 3 /g.
10 . An absorbent core according to claim 9 , wherein the foam material has bulkiness from about 50 cm 3 /g to about 150 cm 3 /g.
11 . An absorbent core according to claim 9 , wherein the foam material has bulkiness from about 80 cm 3 /g to about 120 cm 3 /g.
12 . An absorbent core according to claim 1 , wherein the adhesive is fiberized.
13 . An absorbent core according to claim 1 , wherein the layer of absorbent polymer material is non uniform, and wherein at least a portion of the non uniform layer of absorbent polymer material second surface is in contact with at least a portion of the substrate layer first surface,
and wherein at least a portion of the layer of adhesive second surface is in contact with at least a portion of the substrate layer first surface, and at least a portion of the layer of adhesive second surface is in contact with at least a portion of the non uniform layer of absorbent polymer material first surface.
14 . An absorbent article comprising a liquid permeable topsheet, a backsheet and an absorbent core according to claim 1 comprised therebetween.