US3916900A - Multilayer one-piece disposable diapers - Google Patents

Multilayer one-piece disposable diapers Download PDF

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Publication number
US3916900A
US3916900A US519415A US51941574A US3916900A US 3916900 A US3916900 A US 3916900A US 519415 A US519415 A US 519415A US 51941574 A US51941574 A US 51941574A US 3916900 A US3916900 A US 3916900A
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US
United States
Prior art keywords
disposable diaper
foam layer
diaper according
batt
layer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US519415A
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English (en)
Inventor
Walter Herman Breyer
Nathan Allen Edelson
Barbara Faye Gilliland
Clarence Henry Schatz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kimberly Clark Tissue Co
Original Assignee
Scott Paper Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Scott Paper Co filed Critical Scott Paper Co
Priority to US519415A priority Critical patent/US3916900A/en
Priority to GB39817/75A priority patent/GB1493476A/en
Priority to CA236,758A priority patent/CA1033904A/en
Priority to AU85412/75A priority patent/AU8541275A/en
Priority to DE19752547078 priority patent/DE2547078A1/de
Priority to BE1006972A priority patent/BE834770A/xx
Priority to FR7532491A priority patent/FR2289130A1/fr
Priority to IT51903/75A priority patent/IT1048324B/it
Priority to JP50127577A priority patent/JPS5166194A/ja
Priority to LU73646A priority patent/LU73646A1/xx
Priority to NL7512511A priority patent/NL7512511A/xx
Application granted granted Critical
Publication of US3916900A publication Critical patent/US3916900A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • 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
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/51—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers of the pads
    • A61F13/514—Backsheet, i.e. the impermeable cover or layer furthest from the skin
    • A61F13/51474—Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by its structure
    • A61F13/51478—Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by its structure being a laminate, e.g. multi-layered or with several layers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • 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
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/49—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape specially adapted to be worn around the waist, e.g. diapers, nappies
    • A61F13/49001—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape specially adapted to be worn around the waist, e.g. diapers, nappies having preferential bending zones, e.g. fold lines or grooves
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • 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
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/49—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape specially adapted to be worn around the waist, e.g. diapers, nappies
    • A61F13/494—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape specially adapted to be worn around the waist, e.g. diapers, nappies characterised by edge leakage prevention means
    • A61F13/49406—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape specially adapted to be worn around the waist, e.g. diapers, nappies characterised by edge leakage prevention means the edge leakage prevention means being at the crotch region
    • A61F13/49413—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape specially adapted to be worn around the waist, e.g. diapers, nappies characterised by edge leakage prevention means the edge leakage prevention means being at the crotch region the edge leakage prevention means being an upstanding barrier
    • A—HUMAN NECESSITIES
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    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/49—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape specially adapted to be worn around the waist, e.g. diapers, nappies
    • A61F13/494—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape specially adapted to be worn around the waist, e.g. diapers, nappies characterised by edge leakage prevention means
    • A61F13/49406—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape specially adapted to be worn around the waist, e.g. diapers, nappies characterised by edge leakage prevention means the edge leakage prevention means being at the crotch region
    • A61F13/49446—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape specially adapted to be worn around the waist, e.g. diapers, nappies characterised by edge leakage prevention means the edge leakage prevention means being at the crotch region the edge leakage prevention means being an impermeable sheet or impermeable part of a sheet placed on or under the top sheet
    • A—HUMAN NECESSITIES
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    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/51—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers of the pads
    • A61F13/514—Backsheet, i.e. the impermeable cover or layer furthest from the skin
    • A61F13/51474—Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by its structure
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • 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
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/51—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers of the pads
    • A61F13/515—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers of the pads characterised by the interconnection of the topsheet and the backsheet
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • 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
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
    • A61F13/539—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium characterised by the connection of the absorbent layers with each other or with the outer layers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • 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
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
    • A61F13/534—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • 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
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
    • A61F13/534—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad
    • A61F13/537—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • 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
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/51—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers of the pads
    • A61F13/514—Backsheet, i.e. the impermeable cover or layer furthest from the skin
    • A61F13/51401—Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by the material
    • A61F2013/51409—Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by the material being a film
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • 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
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
    • A61F2013/530131—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium being made in fibre but being not pulp
    • A—HUMAN NECESSITIES
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    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
    • A61F2013/530481—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having superabsorbent materials, i.e. highly absorbent polymer gel materials
    • A—HUMAN NECESSITIES
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    • A61F13/00—Bandages or dressings; Absorbent pads
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    • A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
    • A61F2013/530802—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium characterized by the foam or sponge other than superabsorbent
    • A—HUMAN NECESSITIES
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    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
    • A61F13/534—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad
    • A61F2013/53445—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad from several sheets
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    • A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
    • A61F13/534—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad
    • A61F13/537—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer
    • A61F13/53708—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer the layer having a promotional function on liquid propagation in at least one direction
    • A61F2013/53721—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer the layer having a promotional function on liquid propagation in at least one direction with capillary means

Definitions

  • ABSTRACT Multilayer, one-piece, disposable diapers including a moisture-pervious facing layer adapted to be positioned in engagement with a wearer; a fibrous absorbent core disposed beneath the facing layer for ab- I sorbing body fluids which pass through the facing layer; an elastomeric, wet-stable foam layer beneath the absorbent core for confining and maintaining the absorbent core in close conformity with the perineal region of the wearer, and having sufficient longitudinal and tranverse dimensions for providing elasticity in regions of the diaper that are disposed about the thighs and front and back of the wearer; a moistureimpervious backing sheet beneath the foam layer for preventing fluids from striking through the diaper; and bonding means for retaining the layers of each diaper in an assembled, one-piece construction.
  • This invention relates to disposable diapers, and more specifically to multilayer, one-piece, disposable diapers.
  • Disposable diapers have become exceedingly popular in recent years.
  • the most successful diapers have been of a multilayer, one-piece construction including a facing layer which is pervious to body fluids, an intermediate absorbent core for absorbing and retaining body fluids which pass through the facing layer, and a moisture-impervious backing sheet beneath the absorbent core for preventing body fluids from striking through the diaper.
  • the absorbent cores in the most popular one-piece disposable diapers include a loosely compacted batt of wood pulp fibers.
  • disposable diapers should be constructedto retain body fluids without leakage therefrom.
  • prior art disposable diapers include fluff cores having a weight of hydrophilic fibers that, based on theoretical calculations, is sufficient to absorb the volume of body fluids which is discharged under the specific conditions of use for which the diaper is designed, e.g., daytime, overnight, infant, toddler, geriatric etc.
  • fluff cores become wet they become considerably weakened, and the stresses imposed on them by normal body movements of a wearer cause them to break up into clumps or rope-like elements. This breaking up of the absorbent cores causes the diapers to lose much of their fluid-retaining capability; thereby resulting in leakage of body fluids from within the confines of the diapers.
  • Multilayer, one-piece, disposable diapers each include a moisture-pervious facing layer adapted to be positioned in engagement with a wearer; a fibrous absorbent core disposed beneath the facing layer for absorbing and retaining body fluids which pass through said facing layer an elastomeric, wet-stable foam layer disposed beneath the fibrous absorbent core for confining and maintaining said core in the peripheral region of the wearer, said foam layer having sufficient longitudinal and transverse dimensions for providing elasticity in regions of the diaper that are disposed about the thighs and front and back of the wearer; a moisture-impervious backing sheet beneath said foam layer for preventing body fluids from striking through the diaper; and bonding means for retaining the layers of each diaper in an assembled, onepiece construction.
  • one-piece refers to a diaper having separate layers which are integrated into a single unit by suitable bonding means, and, with the possible exception of fastening menas forretaining the diaper about a wearers torso, does not require the inclusion or attachment of additional components to render it usable.
  • the bonding means for retaining the layers in a one-piece construction need not bond each layer to an adjacent layer.
  • disposable refers to diapers which are adapted for a single use, i.e., they are not capable of being washed and reused.
  • elastomeric refers to a flexible, resilient foam layer, a 1 inch wide sample of which'has the ability, at room temperature, to recover to at least and preferably to over of its original length after being gripped in opposed jaws of an lnstron tensile tester which are initially spaced 2 inches apart, stretched to twice its original length (4 inches) at a jaw speed of 10 inches per minute, held in its stretched condition for 1 minute and allowed to recover for 10 minutes.
  • wet-stable refers to the ability of the foam layer, after being submerged in water for twelve hours, to exhibit the above-described elastomeric property and to retain substantially the same dimensions it had when dry.
  • the wet foam layer is considered to retain substantially the same dimensions as the dry foam layer if the length and width of the wet foam layer is less than 15% greater than the corresponding dimensions of the dry foam layer.
  • a multilayer, one-piece, disposable diaper of this invention is positioned about the torso of a wearer with the foam layer thereof in a stretched, elastic condition, and the diaper is retained in this stretched, elastic condition by suitable fastening means, such as conventional tape fasteners adhered to the moisture-impervious backing sheet of said diaper.
  • suitable fastening means such as conventional tape fasteners adhered to the moisture-impervious backing sheet of said diaper.
  • This stretched, elastic condition of the foam layer aids in establishing close elastic conformity of the diaper about the thighs and waist region of a wearer, and this close conformity will be maintained when the diaper is wet due to the wetstable property of the foam layer. Establishing and maintaining this close conformity aids in preventing leakage of body fluids from the diaper during usage thereof.
  • the elastomeric, wet-stable foam layer by virtue of being positioned beneath the fibrous absorbent core, will confine the absorbent core in close conformity with the perineal region of a wearer when the diaper is positioned about its torso in a stretched, elastic condition, and will function to maintain the absorbent core in its position of close conformity with the perineal region during normal usage of the diaper. In this position, the absorbent core can best receive and contain body fluids.
  • the absorbent core includes a loosely compacted fibrous batt and the foam layer is wider and longer than said batt. Therefore, the foam layer confines the complete fibrous batt during usage of the diaper. This arrangement provides the best conformity of the batt within the perineal region of a wearer to thereby enhance the fluidretaining capability of the diaper.
  • the foam layer has a width which is greater than one-half the width of the diaper, and a length substantially equal to the length of the diaper.
  • the fibrous batt is shaped so that a central region thereof has a lesser transverse dimension than forward and rearward regions, respectively.
  • This shaped construction permits the batt to conform in a most optimum manner to the perineal region of a wearer.
  • the fibrous batt closely conforms in shape to the perineal region of a wearer it is less likely to encounter excessive stresses resulting from normal body movements. Excessive stresses imposed on the batt can cause it to excessively break up, and thereby lose a significant portion of its fluid-retaining capability. This loss in fluid-retaining capability results in undesirable leakage from the diaper.
  • the loosely compacted batt has excellent fluidretaining capabilities; however, due to the relatively large capillaries associated with the batt, it does not enhance the fluid transmission rate by readily wicking body fluids along either the transverse or longitudinal extent thereof. For some applications the enhancement of fluid transmission is not necessary, and the loosely compacted batt can constitute the entire absorbent core.
  • the absorbent core also includes a wicking layer, which may be in the form of a fibrous sheet having a greater density than the fibrous batt, disposed in engagement with the lower surface of said batt.
  • a wicking layer which may be in the form of a fibrous sheet having a greater density than the fibrous batt, disposed in engagement with the lower surface of said batt.
  • urine which passes through the fibrous batt will be received and distributed by the wicking layer. If the wicking layer becomes over saturated the fluid will pass either into dry portions of the batt to effectively utilize the absorbent capacity of the batt, or into the foam layer.
  • the foam layer is of a relatively low 4 density having large void areas, and does not function effectively to wick body fluids which pass into it. However, the void areas do have the ability to retain some amount of urine therein, and the fluid-impervious backing layer prevents this urine from striking through the backside of the diaper.
  • a wicking layer can also be positioned adjacent the lower surface of the foam layer, between the foam layer and the moisture-impervious backing sheet. This wicking layer functions to wick urine which may pass through the foam layer to distribute the urine within the diaper. In the event that this wicking layer becomes over saturated the urine will be forced back through the foam layer (by virtue of its high void, low density construction) wherein it is either retained, or from where it moves into the absorbent fluff batt.
  • FIG. 1 is a partially exploded isometric view of a multilayer, one-piece, disposable diaper according to this invention
  • FIG. 2 shows the diaper of FIG. 1 in an assembled and folded condition
  • FIG. 3 is a sectional view along line 3-3 of FIG. 2;
  • FIG. 4 is a sectional view similar to FIG. 3, but showing a second embodiment of a multilayer, one-piece, disposable diaper according to this invention.
  • FIG. 5 is a sectional view similar to FIG. 3, but showing a third embodiment of a multilayer, one-piece, disposable diaper according to this invention.
  • the sectional view terminates short of the edges so that the folded side sections of the diaper are not shown.
  • a preferred embodiment of a multilayer, one-piece, disposable diaper 10 of this invention includes a moisture-pervious facing layer 12; an absorbent core 14 including a loosely compacted fibrous batt 15 and a fibrous wicking layer 16 having a greater density than said fibrous batt 15; an elastomeric, wet-stable foam layer 18; and a moisture-impervious backing sheet 20.
  • the moisture-pervious facing layer 12 can be of any construction which permits body fluids initially impinged thereon to pass into the internal absorbent core 14.
  • Representative facing layers which can be employed in this invention are carded rayon webs, waterwettable bonded webs of mixed long and short fibers, slit plastic webs and laminates of paper and textile fibers.
  • the specific construction of the facing layer 12 is not intended to be a limitation on the broadest aspects of the instant invention.
  • the absorbent core 14 is the primary absorbent component i.e. it is the heaviest hydrophilic component of the diaper 10.
  • the absorbent core 14 includes a loosely compacted fibrous batt 15 containing cellulosic fibers of a papermaking length less than one-fourth inch.
  • the batt also can contain some longer fibers to enhance its integrity.
  • the batt can contain various additives, as desired. For example, insoluble hydrophilic homopolymers and copolymers which form a gel upon absorption of water can be added.
  • the fibrous batt 15 is formed from 100% wood pulp fibers by directing a pulp lap, in roll or sheet form, through a fiberizer which separates the fibers from the lap, and by directing the separated fibers onto a carrier as a loosely compacted batt.
  • a fiberizer which is commonly employed to form such a loosely compacted batt is the .loa fiberizer manufactured by Joa, Inc. of North Wales, Fla.
  • the fibrous batt 15 is shaped so that a central region 22 has a narrower transverse dimension than a forward region 24 and a rearward region 26 thereof.
  • the fibrous batt 15 has an hour-glass shape with continuous, concavely curved side margins 28; however, other shaped configurations can be employed.
  • the shaped fibrous batt 15 can be manufactured by employing apparatus of the type disclosed in US. patent application Ser. No. 237,963, filed Mar. 24, 1972, and assigned to Scott Paper Company. The subject matter relating to the formation of a shaped pad is incorporated by reference into the instant application.
  • the wicking layer 16 of the absorbent core 14 can be of many different constructions, such as a layer or layers of wet-formed or dry formed fibrous webs.
  • the specific construction of the wicking layer 16 is not intended to be a limitation on the broadest aspects of the instant invention; however, the wicking layer 16 must have a sufficiently small pore size to perform its wicking function. Accordingly, in the preferred embodiment of this invention in which the fibrous batt 15 is a loosely compacted assemblage of cellulosic fibers, the wicking layer 16 has a greater density than said fibrous batt.
  • the elastomeric, wet-stable foam layer 18 must be sufficiently thick to retain its cellular structure; however, it should not be so thick as to impart an undesirable bulkiness to the diaper. If the foam layer is too thick, the excessive bulk in the diaper will result in an uncomfortable structure for a wearer, and also will prevent the desired conformability of the diaper to a wearers torso. Also, the upper thickness limitation of the foam layer 18 is dictated by economic considerations. Specifically, a thick foam layer includes a' greater weight of material than a thin foam layer of the same density, and accordingly is most costly to manufacture.
  • the elastomeric, wet-stable foam layer 18 employed in the disposable diaper of this invention has a thickness in the range of from about 0.015 inches to about 0.250 inches, and more preferably, in the range of from about 0.015 inches to about 0.080 inches.
  • the foam layer 18 has a density in the range of from about 0.5
  • lbs. per cubic ft. to about 10 lbs. per cubic ft., and more preferably in the range of from about 1 lb. per cubic ft. to about 2.5 lbs. per cubic ft.
  • the foam layer 18 must be of a cellular construction having the elastomeric, wet-stable properties described earlier in this application.
  • Representative foams which may be employed in this invention are synthetic and natural rubber foams, vinyl foams, polyvinyl chloride foams and polyurethane foams of both the polyester and polyether type.
  • polyether polyurethane foam 6 polyether polyurethane foam.
  • the polyurethane foams can be either hydrophobic or hydrophilic, the only requirement being that they be both elastomeric and wetstable.
  • the hydrophobic polyurethane foams are most preferred because they are less expensive than the hydrophilic polyurethane foams.
  • the moisture-impervious backing sheet 20 can be formed of any of the well known materials employed as backing sheets in disposable diapers.
  • the moisture-impervious sheet 20 can be a relatively thin sheet having a thickness of approximately 0.001 inches to about 0.002 inches, and formed from suitable plastics such as polyethylene or polypropylene.
  • suitable plastics such as polyethylene or polypropylene.
  • the specific material from which the backing sheet 20 is formed is not intended to be a limitation on the broadest aspects of the instant invention; however, the backing sheet 20 should be moisture-impervious to prevent body fluids from striking through the diaper.
  • the absorbent core 14 is disposed in overlying relationship with the elastomeric, wet-stable foam layer 18.
  • the foam layer 18 has side margins 30 which extend beyond the side margins 28 of the fibrous batt 15 of the absorbent core 14 to completely confine said fibrous batt when the diaper 10 is placed about the torso of a wearer.
  • the moisture-impervious backing sheet 20 is adhered to both the foam layer 18 and the infolded side panels 12' of the facing layer 12 along spaced longitudinally extending adhesive lines 32. In this manner the components of the diaper 10 are retained in an assembled one-piece construction.
  • pressure sensitive adhesive tapes 34 FIGS. 1 and 2 which are attached to the backing sheet 20
  • the stretching forces imposed on said moisture-impervious backing sheet will be transmitted to the foam layer 18 through the adhesive lines 32 and the frictional engagement between the backing sheet and the foam layer to thereby stretch the foam layer 18.
  • the multilayer, one-piece, disposable diaper 10 is placed about the torso of a wearer with the foam layer 18 in a stretched, elastic condition.
  • the foam layer 18 by virtue of being elastomeric, has a memory for its unstretched condition, and accordingly, will conform to the thigh and waist regions of a wearer to provide a well fitting garment about its torso.
  • the diaper 10 due to the elastomeric property of the foam layer 18, the diaper 10 will readily conform to the perineal region of the wearer, and thereby confine the fibrous batt 15 of the absorbent core 14 in close conformity with the perineal region so that it will be in proper position for receiving body fluids as they pass through the facing layer 12.
  • the fibrous batt 15 is of a reduced width as compared to the width of the diaper l0, and is shaped to provide a central region 22 which is narrower than forward and rearward regions 24 and 26, respectively.
  • This construction of the fibrous batt 15 has been found to be most suitable for conforming to the perineal region of a wearer without encountering excessive stresses during use of the diaper which could cause the fibrous batt to excessively break up into clumps, or rope-like elements, and thereby lose a significant amount of its fluid-retaining capability.
  • the foam layer 18 extends for substantially the full longitudinal and transverse extents of the disposable diaper 10. Accordingly, when the diaper 10 is double-pleat folded at opposed side margins along fold lines 36, 38, 40 and 42, the foam layer is included in the inner panels 44 and 46, and in the outer panels 48 and 50 of said folds. Both the inner and outer panels are adapted to encircle the thighs of a wearer, and accordingly, the stretched foam layer aids in maintaining the diaper 10 in close conformity with the thighs. In addition, the foam layer 18 will circumscribe the waist region of the wearer in a stretched condition to establish excellent elastic conformity therewith.
  • FIG. 4 a second embodiment of a multilayer, one-piece, disposable diaper 10A is shown in which an elastomeric foam layer 18A, is identical to foam layer 18, but terminates short of the transverse ends of the diaper.
  • the foam layer 18 is included only in the inner panels 44 and 46 of the double-pleat folds; however, these inner panels are adapted to encircle the thigh regions of wearer, and accordingly, the foam layer 18A has a sufficient transverse dimension for closely conforming to the thighs of a wearer.
  • the disposable diaper 10A is identical to the disposable diaper l disclosed in FIGS. 1-3.
  • the diaper 10B includes a wicking layer 60 disposed between the foam layer 18 and the backing sheet 20.
  • This wicking layer 60 functions to distribute the urine which may pass into it through the absorbent core 14, the wicking layer 16 and the foam layer 18.
  • the lower wicking layer 60 becomes over saturated the urine will be forced upwardly into the capillary structure of the foam layer 18, wherein the urine can be retained.
  • the urine is confined against passage through the backing sheet 20 due to its moisture-impervious property.
  • the backing sheet 20 in the disposable diaper 10B is connected to the foam layer 18 by adhesive lines 328.
  • the adhesive lines 323 underlying the wicking layer 60 can strike through the wicking layer to adhere to the foam layer 18; however, this construction is optional.
  • the ultimate absorptive capacity of the diaper may be more important than its rate of absorption.
  • the total discharge of several voidings may make added absorptive capacity desirable while the rate of discharge in any one voiding may not be so great as to tax the absorption rate of the loosely compacted batt. Accordingly, for such a use it is not necessary to include a wicking layer to aid in distributing the flow of urine.
  • the densified wicking layers 16 and 60 are shown as extending for less than the full transverse extent of the diaper, it is within the scope of this invention to employ wicking layer(s) of a larger transverse dimension.
  • wicking layer 16 when wicking layer 16 is employed as part of the absorbent core 14 it should underlie the entire fibrous batt 15 to both aid in supporting the batt and in distributing the urine.
  • said wicking layer When the wicking layer 16 extends to the side and/or end margins 8 of the diaper, said wicking layer should be of a capillary structure which will not wick an excessive quantity of urine to the boundaries of the diaper to create a leakage problem.
  • an absorbent core 14 including a loosely compacted fibrous batt which is substantially rectangular, and which extends for the full transverse extent of the unstretched, elastomeric, wet-stable foam layer 18. Even in this construction the stretching of the diaper, including the foam layer 18 therein, about the torso of an infant tends to confine the fibrous batt in the perineal region of the wearer by virtue of the elastomeric property of the foam and the natural pleating of the diaper which takes place in the perineal region.
  • a substantially rectangular fibrous batt as described above, may be subjected to excessive forces resulting from the normal body movements of a wearer to thereby cause the batt to excessively break up into clumps or rope-like elements, and thereby lose a significant portion of its fluid-retaining ability.
  • the particular dimensions of the multilayer, onepiece, disposable diapers of this invention will vary depending upon the intended use of the diaper, i.e. infant, toddler, daytime, overnight, geriatric, etc.
  • a representative multilayer, onepiece, disposable diaper according to this invention, and intended for daytime use has a transverse dimension of 12 /2 inches and a longitudinal dimension of 17 inches.
  • the moisture-impervious backing sheet 20 has the same dimensions as the diaper, and the moisturepervious facing layer 12 has a slightly greater transverse dimension so that end margins 12' thereof can be folded inwardly between the foam layer 18 and the moisture-impervious backing sheet 20 and bonded to the backing sheet (FIG. I).
  • the foam layer 18 has the same dimensions as the diaper, and is positioned in engagement with the moisture-impervious backing sheet 20, except for the transverse ends thereof which are separated from the backing sheet 20 by the end margins of the folded end portions 12' of the moisture-pervious facing layer 12.
  • the absorbent core 14 includes a loosely compacted fibrous batt 15 which has a substantially hour-glass shape in which the central region is 4 inches wide and the forward and rearward end regions are 6% inches wide.
  • the fibrous batt 15 is 13 inches long, and is positioned in the center of the disposable diaper on top of a wicking layer 16 having the same transverse and longitudinal dimensions as the diaper.
  • the diaper is double-pleat folded as shown in FIGS.
  • each of the panels of each of the double-pleat folds is approximately 2 inches wide, and the central, unfolded region of the diaper is approximately 4- /2 inches wide.
  • the diaper described in the preceding paragraph can include the following weights of components:
  • the fibrous batt 15 of the absorbent core 14 is the heaviest hydrophilic component of the diaper.
  • a multilayer, one-piece, disposable diaper includmg: v
  • the disposable diaper according to claim 1 including double-pleat folds at each side margin thereof.
  • said bonding means includes adhesive bonds adhering the backing sheet to the foam layer in spaced apart regions.
  • the disposable diaper according to claim 4 including pressure sensitive adhesive tabs secured to the backing sheet for use in retaining the diaper, about the torso of a wearer.
  • the disposable diaper according to claim 1 including a fibrous wicking layer disposed between the foam layer and backing sheet.
  • said bonding means includes adhesive bonds adhering the backing sheet to the foam layer.
  • said foam layer has a thickness in the range of from about 0.015 inches to about 0.250 inches and a density in the range of from about 0.5 lbs. per cubic ft. to about lbs. per cubic ft.
  • said foam layer has a thickness in the range of from about 0.015 inches to about 0.080 inches and a density in the range of from about 1.0 lbs. per cubic ft. to about 2.5 lbs. per cubic ft.
  • the disposable diaper according to claim 11 including double-pleat folds at each side margin thereof. .14.
  • loosely compacted batt is of a shaped construction having a central region which is narrower than forward and rearward regions thereof.
  • said absorbent core includes a loosely compacted batt of absorbent fibers, said batt having a narrower transverse dimension than that of the foam layer.
  • said fibrous batt is the heaviest hydrophilic component.
  • the disposable diaper according to claim 17 including double-pleat folds at each side margin thereof. 20. The disposable diaper according to claim 17,
  • said absorbent core also includes a fibrous wicking layer having a greater density than said batt and contiguous to a bottom surface of said batt.
  • the disposable diaper according to claim 20 including a second fibrous wicking layer having a greater density than said batt disposed between the foam layer and backing sheet.
  • said foam layer has a thickness in the range of from about 0.015 inches to about 0.250 inches and a density in the range of from about 0.5 lbs. per cubic ft. to about 10 lbs. per cubic ft.
  • said absorbent core also includes a fibrous wicking layer. having a greater density than said fibrous batt and disposed adjacent a bottom surface of said batt.
  • the disposable diaper according to claim 33 including a second fibrous wicking layer having a greater density than said fibrous batt disposed between the foam layer and the backing sheet.
  • a multilayer,- one-piece, disposable diaper including:A. a moisture-pervious facing layer adapted to be positioned in engagement with a wearer; 1 B. an absorbent core containing hydrophilic fibers disposed beneath said facing layer for absorbing and retaining body fluids which pass through said facing layer;
  • E.. bonding means for retaining the components of the disposable diaper in an assembly, one-piece construction.
  • foam layer is hydrophobic.
  • said absorbent core includes a loosely compacted batt of absorbent fibers and a fibrous wicking layer contiguous to a bottom surface of said batt and I wherein the loosely compacted batt is of a shaped construction having a central region which is narrower than forward and rearward regions thereof.
  • a multilayer-,one-piece, disposable diaper including:
  • said fibrous absorbent core has a narrower transverse dimension than that of the foam layer.
  • said absorbentcore includes a loosely compacted batt of absorbent fibers and a fibrous wicking layer contiguous to a bottom surface of said batt and having a greater density than said batt.

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  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Dermatology (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
US519415A 1974-10-31 1974-10-31 Multilayer one-piece disposable diapers Expired - Lifetime US3916900A (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
US519415A US3916900A (en) 1974-10-31 1974-10-31 Multilayer one-piece disposable diapers
GB39817/75A GB1493476A (en) 1974-10-31 1975-09-29 Multilayer one-piece disposable diaper
CA236,758A CA1033904A (en) 1974-10-31 1975-09-30 Multilayer one-piece disposable diaper
AU85412/75A AU8541275A (en) 1974-10-31 1975-10-02 Diaper
DE19752547078 DE2547078A1 (de) 1974-10-31 1975-10-17 Mehrschichtige, einstueckige und nur einmal benutzbare windel
FR7532491A FR2289130A1 (fr) 1974-10-31 1975-10-23 Couche a jeter en une piece et a multiplis
BE1006972A BE834770A (fr) 1974-10-31 1975-10-23 Couche a jeter en une piece et a multiplis
IT51903/75A IT1048324B (it) 1974-10-31 1975-10-23 Pannolino usa e butta in pezzo unico a piu strati
JP50127577A JPS5166194A (enrdf_load_stackoverflow) 1974-10-31 1975-10-24
LU73646A LU73646A1 (enrdf_load_stackoverflow) 1974-10-31 1975-10-24
NL7512511A NL7512511A (nl) 1974-10-31 1975-10-24 Wegwerpabsorptieweefsel.

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JP (1) JPS5166194A (enrdf_load_stackoverflow)
AU (1) AU8541275A (enrdf_load_stackoverflow)
BE (1) BE834770A (enrdf_load_stackoverflow)
CA (1) CA1033904A (enrdf_load_stackoverflow)
DE (1) DE2547078A1 (enrdf_load_stackoverflow)
FR (1) FR2289130A1 (enrdf_load_stackoverflow)
GB (1) GB1493476A (enrdf_load_stackoverflow)
IT (1) IT1048324B (enrdf_load_stackoverflow)
LU (1) LU73646A1 (enrdf_load_stackoverflow)
NL (1) NL7512511A (enrdf_load_stackoverflow)

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US9308131B2 (en) 2012-07-12 2016-04-12 Kimberly-Clark Worldwide, Inc. Containment pant
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US20190076307A1 (en) * 2016-03-17 2019-03-14 Unicharm Corporation Absorbent article

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FR2477010A1 (fr) * 1980-02-29 1981-09-04 Oreal Garniture absorbante notamment serviette periodique
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US5817081A (en) * 1995-01-10 1998-10-06 The Procter & Gamble Company Absorbent articles for fluid management
US5624425A (en) * 1995-04-05 1997-04-29 The Procter & Gamble Company Localized application of fine denier fibers onto a spunbonded web for optimization of leg cuff hydrophobicity in diapers and pads
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US6238379B1 (en) 1998-08-25 2001-05-29 Kimberly-Clark Worldwide, Inc. Absorbent article with increased wet breathability
US6287286B1 (en) 1998-08-25 2001-09-11 Kimberly-Clark Worldwide, Inc. Absorbent article having a reduced viability of candida albicans
US6152906A (en) * 1998-08-25 2000-11-28 Kimberly-Clark Worldwide, Inc. Absorbent article having improved breathability
US6220999B1 (en) 1999-03-19 2001-04-24 Kimberly-Clark Worldwide, Inc. Method and apparatus for forming an apertured pad
US6454690B2 (en) 1999-03-19 2002-09-24 Kimberly-Clark Worldwide, Inc. Method and apparatus for forming an apertured pad
US6632974B1 (en) 1999-06-21 2003-10-14 Kao Corporation Absorbent article
US6448464B1 (en) 1999-07-30 2002-09-10 Kimberly-Clark Worldwide, Inc. Absorbent article which maintains skin temperature when wet
US6296862B1 (en) 1999-08-23 2001-10-02 Kimberly-Clark Worldwide Absorbent article which maintains or improves skin health
US6482422B1 (en) 1999-08-23 2002-11-19 Kimberly-Clark Worldwide, Inc. Absorbent article which maintains or improves skin health
US6558363B2 (en) 1999-08-23 2003-05-06 Kimberly-Clark Worldwide, Inc. Absorbent article with increased wet breathability
US6316013B1 (en) 1999-08-23 2001-11-13 Kimberly-Clark Worldwide, Inc. Absorbent article which maintains or improves skin health
US6620144B1 (en) * 1999-11-08 2003-09-16 Mcneil-Ppc, Inc. Compound napkin
WO2001035889A1 (en) * 1999-11-15 2001-05-25 Kimberly-Clark Worldwide, Inc. Body fluid sealing gaskets for absorbent articles
FR2810879A1 (fr) * 2000-06-28 2002-01-04 Proteco Couche comportant une ame absorbante ayant en section une forme generale en omega
US6797858B2 (en) * 2001-10-09 2004-09-28 Paragon Trade Brands, Inc. Padded absorbent article
US8367570B2 (en) 2002-04-04 2013-02-05 The University Of Akron Mechanically strong absorbent non-woven fibrous mats
US7765647B2 (en) 2002-04-04 2010-08-03 The University Of Akron Non-woven fiber assemblies
US20060153904A1 (en) * 2002-04-04 2006-07-13 Smith Daniel H Non-woven fiber assemblies
US20060246798A1 (en) * 2002-04-04 2006-11-02 Reneker Darrell H Mechanically strong absorbent non-woven fibrous mats
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US20040122393A1 (en) * 2002-12-20 2004-06-24 Michael Tod Morman Disposable leak-proof containment garment
US7393346B2 (en) 2002-12-20 2008-07-01 Kimberly-Clark Worldwide, Inc. Disposable leak-proof containment garment
WO2009106899A1 (en) * 2008-02-28 2009-09-03 Tots Bots Limited Multi-layered nappy
US8719965B2 (en) 2009-09-24 2014-05-13 Nike, Inc. Apparel incorporating a protective element
US20110067160A1 (en) * 2009-09-24 2011-03-24 Nike, Inc. Apparel Incorporating A Protective Element
US8438667B2 (en) * 2009-09-24 2013-05-14 Nike, Inc. Apparel incorporating a protective element
US8683618B2 (en) * 2009-09-24 2014-04-01 Nike, Inc. Apparel incorporating a protective element
US9011398B2 (en) 2012-07-12 2015-04-21 Kimberly-Clark Worldwide, Inc. Containment system
US9011403B2 (en) 2012-07-12 2015-04-21 Kimberly-Clark Worldwide, Inc. Absorbent insert
US9192526B2 (en) 2012-07-12 2015-11-24 Kimberly-Clark Worldwide, Inc. Absorbent insert and containment system
US9192524B2 (en) 2012-07-12 2015-11-24 Kimberly-Clark Worldwide, Inc. Absorbent insert with positioning notch
US9198806B2 (en) 2012-07-12 2015-12-01 Kimberly-Clark Worldwide, Inc. Containment pant
US9198807B2 (en) 2012-07-12 2015-12-01 Kimberly-Clark Worldwide, Inc. Containment pant
US9226862B2 (en) 2012-07-12 2016-01-05 Kimberly-Clark Worldwide, Inc. Containment pant with positioning key
US9308131B2 (en) 2012-07-12 2016-04-12 Kimberly-Clark Worldwide, Inc. Containment pant
US20140053341A1 (en) * 2012-08-27 2014-02-27 Sleep Innovations, Inc. Foam fiber structure and method of making same
US9675499B2 (en) 2014-11-25 2017-06-13 Kimberly-Clark Worldwide, Inc. Containment pant with attachment mechanisms
US20190076307A1 (en) * 2016-03-17 2019-03-14 Unicharm Corporation Absorbent article
CN105726225A (zh) * 2016-04-25 2016-07-06 邓攀 一种类ｕ型吸液纸尿裤
WO2018164702A1 (en) * 2017-03-09 2018-09-13 Harrell Delores Undergarments with multi-layer barriers to lessen emf/emr/ehs emitting features and moisture management properties

Also Published As

Publication number Publication date
NL7512511A (nl) 1976-05-04
DE2547078A1 (de) 1976-05-06
FR2289130B3 (enrdf_load_stackoverflow) 1978-07-28
IT1048324B (it) 1980-11-20
FR2289130A1 (fr) 1976-05-28
GB1493476A (en) 1977-11-30
BE834770A (fr) 1976-04-23
LU73646A1 (enrdf_load_stackoverflow) 1976-08-19
JPS5166194A (enrdf_load_stackoverflow) 1976-06-08
AU8541275A (en) 1977-04-07
CA1033904A (en) 1978-07-04

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