Elastic absorbent sanitary article for absorbing bodily fluids

Patent metadata

Field	Value
Publication number	US-9439814-B2
Application number	US-201214112056-A
Country	US
Kind code	B2
Filing date	Apr 27, 2012
Priority date	Apr 28, 2011
Publication date	Sep 13, 2016
Grant date	Sep 13, 2016

Abstract

An absorbent hygiene product for acquiring fluids, having a flexurally yielding topsheet and a flexurally yielding backsheet, has, disposed between these sheets, an absorbent laminate, which in turn has two flexurally yielding outer plies, arranged adheringly between which are at least two diagonally intersecting, pre-tensioned plies of elastic filaments, a quantity of a superabsorbent polymer being incorporated in each of the discrete sections thus formed, and the topsheet-side outer ply of the laminate consists of a hydrophobic material, and the backsheet-side outer ply of the laminate consists of a hydrophilic material.

First claim

What is claimed is:

1. An absorbent hygiene product for acquiring fluids, formed at least of a flexurally yielding topsheet and a flexurally yielding backsheet, inserted adheringly between which is an absorbent laminate, consisting of two flexurally yielding outer plies, incorporated adheringly between which are at least two diagonally intersecting, pre-tensioned plies of elastic filaments, and into which discrete sections of superabsorbent polymer have been incorporated, characterized in that one of the two flexurally yielding outer plies of the laminate faces the topsheet and is a hydrophobic material which in a region of adherence with the elastic filaments and the second outer ply has been locally or sectionally made fluid-pervious mechanically, chemically or thermally.

2. The absorbent hygiene product according to claim 1 , characterized in that the topsheet-side outer ply of the laminate after 300 s fluid addition has a barrier effect of more than 2 cm for fluids.

3. The absorbent hygiene product according to claim 2 , characterized in that the topsheet-side outer ply of the laminate after 300 s fluid addition has a barrier effect of more than 5 cm for fluids.

4. The absorbent hygiene product according to claim 1 characterized in that one of the two flexurally yielding outer plies of the laminate faces the backsheet and is a hydrophilic material having good fluid transport quality.

5. The absorbent hygiene product according to claim 4 , characterized in that the backsheet-side outer ply of the laminate is a hydrophilic material having an areal distribution of more than 10 cm 2 wetted area by a fluid quantity of 1 ml applied pointwise.

6. The absorbent hygiene product according to claim 5 , characterized in that the backsheet-side outer ply of the laminate is a hydrophilic material having an areal distribution of more than 20 cm 2 wetted area by a liquid quantity of 1 ml applied pointwise.

7. The absorbent hygiene product according to claim 1 characterized in that the laminate has cassette-like regions with superabsorbent polymer disposed therein.

8. The absorbent hygiene product according to claim 7 , characterized in that a multiplicity of open transport channels are formed between the cassette-like regions of the laminate.

9. The absorbent hygiene product according to claim 1 characterized in that the absorbent laminate towards the topsheet side bears at least regionally loosely against the topsheet.

10. The absorbent hygiene product according to claim 1 characterized in that the absorbent laminate towards the backsheet side bears at least regionally loosely against the backsheet.

Assignees

• Fenske Wilfried
• Evonik Degussa Gmbh

Inventors

• Fenske Wilfried

Classifications

• B32B2307/728

  Hydrophilic · CPC title

• B32B2555/02

  Diapers or napkins · CPC title

• B32B27/28

  comprising synthetic resins not wholly covered by any one of the sub-groups {B32B27/30 - B32B27/42} · CPC title

• B32B7/02

  Physical, chemical or physicochemical properties · CPC title

• B32B5/26

  another layer {next to it} also being fibrous or filamentary {(relative arrangement of fibres or filaments of different layers B32B5/12)} · CPC title