# US 8,907,156 B2 · Absorbent article having a multifunctional containment member > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,907,156 B2 - Document ID: US8907156B2 - Status: Granted - Kind: B2 - Application number: 13/760,344 - Filed: 2013-02-06 - Published: 2013-06-06 - Granted: 2014-12-09 - Earliest claimed: 2006-06-07 - Assignees: The Procter & Gamble Company - Applicants: The Procter & Gamble Company - Inventors: Donald Carroll Roe; Michael Dale Trennepohl; Olaf Erik Alexander Isele; Kenneth Michael Hammall; Angelli Sue Denmon - Web page: https://patentgrep.com/patent/US8907156B2 ## CPC - A61F 13/51458: {being air-pervious or breathable} - A61F 13/49413: {the edge leakage prevention means being an upstanding barrier} - A61F 13/511: Topsheet, i.e. the permeable cover or layer facing the skin - A61F 13/51401: {characterised by the material} - A61F 13/51405: {treated or coated, e.g. with moisture repellent agent} - A61F 13/5146: {having apertures of perforations} - A61F 13/51462: {being defined by a value or parameter} - A61F 13/51484: {being inhomogeneous in the plane of the sheet, i.e. having zones of different properties or structures} - A61F 2013/51421: {only in special places} - A61F: FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS (dental prosthetics A61C) ## Abstract An absorbent article such as a diaper, training pant, and the like comprises a containment member that has a central zone and a barrier zone. The central zone has greater air flow according to the Air Permeability Test than the barrier zone. The bather zone a greater hydrohead according to the Hydrostatic Head Pressure Test than the central zone. The containment member may be used for absorbent core formation and may have portions configured to serve as barrier leg cuffs for the finished absorbent article. ## Claims ### Claim 1 An absorbent article comprising a garment body and an absorbent assembly joined to the garment body such that the absorbent assembly is disposed between the garment body and a wearer during wear, wherein said absorbent assembly has a garment-facing surface and a body-facing surface, wherein said absorbent assembly comprises: a) a liquid permeable topsheet, b) a containment member joined to the topsheet, and c) an absorbent core disposed between said containment member and said topsheet, said absorbent core having opposing longitudinal core edges; wherein the containment member comprises respective opposing longitudinal containment member edges and a pair of elastic members respectively joined proximate to the containment member edges, and wherein the containment member comprises: i) a central zone disposed between the absorbent core and the garment body, the central zone having a pair of longitudinal sides, and ii) a pair of barrier zones respectively disposed at either longitudinal side of the central zone, between the central zone and the opposing containment member edges, the barrier zones and the containment member edges forming respective upstanding longitudinal barrier cuffs, and wherein the central zone has a greater air flow according to the Air Permeability Test than the barrier zone and the barrier zone has a greater hydrohead according to the Hydrostatic Head Pressure Test than the central zone. ### Claim 2 (depends on 1) The absorbent article of claim 1 wherein the central zone has air flow, according to the Air Permeability Test, about 10% greater than that of the barrier zones. ### Claim 3 (depends on 1) The absorbent article of claim 1 wherein the containment member comprises a substrate having first pores in the central zone having a first average pore size and second pores in the barrier zones having a second average pore size, wherein the first average pore size is about 20% greater than the second average pore size. ### Claim 4 (depends on 3) The absorbent article of claim 3 wherein the barrier zones of the containment member have been heated, compressed, or both to reduce the size of the second pores. ### Claim 5 (depends on 1) The absorbent article of claim 1 wherein the containment member comprises a substrate having a basis weight in the central zone less than the basis weight in the barrier zones. ### Claim 6 (depends on 1) The absorbent article of claim 1 wherein the containment member comprises a fibrous nonwoven. ### Claim 7 (depends on 6) The absorbent article of claim 6 wherein the fibrous nonwoven comprises first fibers in the central zone and second fibers in the ba zones; wherein the first fibers predominately have a first cross-sectional shape, wherein the second fibers predominately have a second cross-sectional shape, and wherein the first cross-sectional shape is different from the second cross-sectional shape. ### Claim 8 (depends on 6) The absorbent article of claim 6 wherein the fibrous nonwoven comprises first fibers in the central zone having a first denier and second fibers in the barrier zones having a second denier; wherein the first denier is different from the second denier. ### Claim 9 (depends on 6) The absorbent article of claim 6 wherein a secondary substrate is joined to the fibrous nonwoven such that the secondary substrate is substantially disposed in the barrier zones. ### Claim 10 (depends on 9) The absorbent article of claim 9 wherein the secondary substrate is liquid impermeable. ### Claim 11 (depends on 6) The absorbent article of claim 6 wherein the nonwoven comprises fine fibers in the barrier zones and, optionally, in the central zone such that the barrier zones comprise a greater basis weight of fine fibers than does the central zone. ### Claim 12 (depends on 1) The absorbent article of claim 1 wherein the central zone of the containment member is mechanically treated to increase air permeability, wherein the mechanical treatment is selected from a group consisting of perforating, laser aperturing, fluid jet aperturing, incremental stretching, ring rolling, tentering, general stretching or combinations thereof. ### Claim 13 (depends on 1) The absorbent article of claim 1 wherein the barrier zones of the containment member are coated with a hydrophobic surface coating or a barrier coating and wherein the central zone is substantially free of the hydrophobic surface coating or barrier coating. ### Claim 14 (depends on 1) The absorbent article of claim 1 wherein the barrier zones exhibit a lower surface energy than does the central zone. ### Claim 15 (depends on 1) The absorbent article of claim 1 wherein the absorbent article further comprises an impermeable member disposed between the absorbent assembly and the garment body. ### Claim 16 (depends on 1) The absorbent article of claim 1 wherein the absorbent assembly further comprises an impermeable member disposed between containment member and the absorbent core. ### Claim 17 (depends on 1) The absorbent article of claim 1 wherein the garment body consists essentially of a liquid permeable substrate. ### Claim 18 (depends on 1) The absorbent article of claim 1 wherein the containment member comprises a continuous substrate. ### Claim 19 (depends on 1) The absorbent article of claim 1 wherein the containment member comprises a composite substrate or laminate substrate. ### Claim 20 An absorbent article comprising a garment body and an absorbent assembly joined to the garment body such that the absorbent assembly is disposed between the garment body and a wearer during wear, wherein said absorbent assembly has a garment-facing surface and a body-facing surface, wherein said absorbent assembly comprises: a) a liquid permeable topsheet, b) a containment member joined to the topsheet, c) an absorbent core disposed between said containment member and said topsheet, said absorbent core having opposing longitudinal core edges; wherein the containment member comprises respective opposing longitudinal containment member edges and a pair of elastic members respectively joined proximate to the containment member edges, and wherein the containment member comprises: i) central zone disposed between the absorbent core and the garment body, the central zone having a pair of longitudinal sides, and ii) a pair of bond zones respectively disposed adjacent to the elastic members, and iii) a pair of barrier zones respectively disposed at either longitudinal side of the central zone, between the central zone and the opposing containment member edges, the barrier zones and the containment member edges forming respective upstanding longitudinal barrier cuffs; wherein the central zone has a greater air flow according to the Air Permeability Test than the barrier zones; wherein the bond zones have zone has a greater hydrohead according to the Hydrostatic Head Pressure Test than the barrier zones. ### Claim 21 An absorbent article comprising a garment body and an absorbent assembly joined to the garment body such that the absorbent assembly is disposed between the garment body and a wearer during wear, wherein the garment body consists essentially of a liquid permeable material, wherein said absorbent assembly has a garment-facing surface and a body-facing surface, wherein said absorbent assembly comprises: a) a liquid permeable topsheet, b) a containment member formed of a continuous substrate, and c) an absorbent core disposed between said containment member and said topsheet, said absorbent core haying opposing longitudinal edges; wherein the containment member comprises respective opposing longitudinal containment member edges and a pair of elastic members respectively joined proximate to the containment member edges, and wherein the containment member comprises: i) a central zone disposed between the absorbent core and the garment body, ii) a pair of barrier zones respectively disposed at either longitudinal side of the central zone, between the central zone and the containment member edges, the barrier zones and the containment member edges forming respective upstanding longitudinal barrier cuffs, and wherein the central zone has a greater air permeability than the barrier zones and the barrier zones have a greater hydrohead than the central zone.