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WO1990004375A1 - Couche jetable peu volumineuse - Google Patents

Couche jetable peu volumineuse Download PDF

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Publication number
WO1990004375A1
WO1990004375A1 PCT/US1989/004783 US8904783W WO9004375A1 WO 1990004375 A1 WO1990004375 A1 WO 1990004375A1 US 8904783 W US8904783 W US 8904783W WO 9004375 A1 WO9004375 A1 WO 9004375A1
Authority
WO
WIPO (PCT)
Prior art keywords
absorbent
panel
diaper
layer
absorbent panel
Prior art date
Application number
PCT/US1989/004783
Other languages
English (en)
Inventor
Heinz A. Pieniak
Gloria Huffman
Original Assignee
Mcneil-Ppc, Inc.
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 Mcneil-Ppc, Inc. filed Critical Mcneil-Ppc, Inc.
Publication of WO1990004375A1 publication Critical patent/WO1990004375A1/fr

Links

Classifications

    • 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
    • A61F13/495—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 with faecal cavity
    • 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
    • A61F13/49007—Form-fitting, self-adjusting disposable diapers
    • A61F13/49009—Form-fitting, self-adjusting disposable diapers with elastic means
    • A61F13/49011—Form-fitting, self-adjusting disposable diapers with elastic means the elastic means is located at the waist region
    • 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
    • A61F13/535—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 inhomogeneous in the plane of the pad, e.g. core absorbent layers being of different sizes
    • 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
    • A61F13/15577—Apparatus or processes for manufacturing
    • A61F13/15585—Apparatus or processes for manufacturing of babies' napkins, e.g. diapers
    • 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
    • A61F13/491—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 specially adapted for gender distinct urine discharge pattern
    • 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
    • A61F2013/49068—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 characterized by the shape of the outline
    • A61F2013/49076—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 characterized by the shape of the outline as "I"-shaped
    • 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
    • A61F13/51—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
    • A61F2013/51411—Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by the material being a film being impervious to fluids but not for air or vapours
    • A61F2013/51415—Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by the material being a film being impervious to fluids but not for air or vapours with pores
    • 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
    • A61F2013/530481—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
    • 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
    • A61F2013/530481—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
    • A61F2013/530489—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 being randomly mixed in with other material
    • A61F2013/530496—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 being randomly mixed in with other material being fixed to fibres
    • 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
    • A61F2013/530481—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
    • A61F2013/5307—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 characterized by the quantity or ratio of superabsorbent material
    • 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
    • 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
    • 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
    • A61F13/56—Supporting or fastening means
    • A61F13/58—Adhesive tab fastener elements
    • A61F2013/583—Adhesive tab fastener elements with strips on several places

Definitions

  • the present invention relates generally to disposable absorbent articles including diapers and incontinent products, and more particularly to a low bulk disposable diaper configured for improved fit and comfort while exhibiting enhanced absorptive and leakage-resistant characteristics.
  • a typical disposable diaper structure includes a layer of liquid-retaining absorbent material sandwiched between a moisture pervious facing layer positioned adjacent the skin of the wearer, and a moisture impervious plastic backing sheet to confine moisture within the absorbent layer.
  • the absorbent layer has typically been comprised of batt of loosely compacted cellulosic fibers, usually comminuted wood pulp or "fluff". While such absorbent material is relatively inexpensive and is capable of quickly absorbing liquids, the typical diaper structure includ.ing such material is configured such that it detracts from the comfort of the wearer.
  • typical disposable diaper products are relatively thick and exhibit high bulk. Such arrangements were thought to be desirable because consumers showed a preference for thicker diapers in view of their higher absorptive capacity and reduced tendency to leak. Even those products which include hydrocolloid or superabsorbent materials in combination with wood pulp are
  • the appearance of bulkiness of a diaper is related to the panel thickness and to the volume of the diaper absorbent panel.
  • the volume of the panel affects the comfort of the product as felt by the wearer, typically infants, and also affects consumer preferences.
  • a snug-fitting diaper not only because of its aesthetic appeal, but also because of the desired ease with which outer clothing can be fit over the diaper. It is therefore preferred that a diaper does not tend to hang low between an infant's legs with a bagging or pouch-like appearance. As will -be appreciated, however, in order for the diaper to fit close to the body in the limited space between the thighs, the diaper must fold or corrugate. As a consequence of this
  • the diaper particularly configured for improved fit and comfort by providing a construction which exhibits relatively low bulkiness, while at the same time providing efficient absorbency so as to avoid leakage while in use.
  • This is achieved by providing the diaper with an absorbent panel structure which is relatively thin and narrow, yet exhibits a high absorptive capacity per unit volume of the panel to obtain the desired characteristics.
  • the structure is configured so as to minimize the unnatural outward displacement of an infant's thighs while wearing the product, thus enhancing comfort.
  • the present disposable diaper includes an absorbent panel, with a moisture-pervious facing layer positioned in overlying relationship on one side of the absorbent panel.
  • the facing layer is adapted for positioning adjacent the wearer of the diaper, and may typically comprise non-woven fabric or the like.
  • the diaper construction further includes a backing layer positioned on the side of the absorbent panel opposite the facing layer. While the backing layer may be formed from moisture-impervious plastic sheet material, the illustrated embodiment is
  • a moisture-impervious barrier layer is provided in association with a
  • the barrier layer has a surface area which is less than that of the backing layer, thereby minimizing the occlusion of the diaper for improved breathability, further enhancing comfort.
  • the absorbent panel of the present disposable diaper comprises a matrix of absorbent material, and includes an impact or target zone, defined as the second and third fifths of the panel length, measured from the front of the diaper.
  • the present diaper is configured such that the minimum transverse dimension of the absorbent panel at the impact zone is no more than about 40 times the thickness dimension panel in this region. Additionally, the absorbent panel is
  • absorbencv efficiency index of at least 1.5. This absorbency efficiency index is determined by
  • the preferred absorbent matrix of the absorbent panel comprises superabsorbent material, preferably in combination with a fibrous web wherein the superabsorbent material comprises from about 200 to about 1500 percent, by dry weight basis, of the fibrous material in the web.
  • the fibrous material is in the form of a substantially high loft, resilient fibrous web layer, with the superabsorbent material distributed within the fibrous web layer. The fibrous web layer is maintained in a compressed state by the superabsorbent material, whereupon wetting of the absorbent matrix wets the
  • the absorbent matrix further includes liquid transport means
  • wicking layer of densified hydrophilic fibers, typically densified wood pulp fibers.
  • the wicking layer is coextensive with at least a portion of a respective expansive surface of the compressed fibrous web layer, and thus promotes liquid transport within the absorbent matrix to maximize utilization of the absorptive capacity of the fibrous web layer and the associated
  • the present diaper has been configured such that the minimum dimension between the opposite, innermost ones of such elastic elements at the impact zone of the diaper is no more than about 1.25 times the minimum transverse dimension of the absorbent panel of the impact zone. This relationship has been found to desirably minimize the bulk of the material which must be accommodated, while at the same time
  • FIGURE 1 is an exploded perspective view of a disposable diaper embodying the principles of the present invention
  • FIGURE 2 is a perspective view, partially cut-away, of the present disposable diaper
  • FIGURE 3 is a cross-sectional view taken along lines 3-3 of FIGURE 2;
  • FIGURES 4 and 5 are illustrations made from photographs of an infant wearing a diaper embodying the principles of the present invention, and a conventional disposable diaper, respectively;
  • FIGURE 6 is a perspective view, partially cut-away, of an alternate embodiment of the present disposable diaper.
  • FIGURE 7 is a cross-sectional view taken along lines 7-7 of FIGURE 6. Detailed Description
  • diaper is intended to refer to an absorbent article which is worn by an individual for absorbing urine and/or fecal matter. It is to be understood that diapers embodying the principles of the present invention can be appropriately sized for use by infants or babies, and can further be sized for use by incontinent adults. It will be further understood that absorbent articles other than disposable diapers can be provided with an absorbent unit or structure embodying the principles of the present invention. Such articles can include sanitary napkins, tampons, incontinent pads, wound dressings, absorbent wipes, and the like.
  • Diaper 10 includes a facing layer or topsheet 12 formed of moisture pervious material, with the facing layer being adapted for positioning adjacent to the wearer of the diaper.
  • the diaper further includes an absorbent panel 14, which in the illustrated
  • absorbent panel 14 preferably comprises an absorbent matrix of a resilient fibrous web with hydrocolloid or superabsorbent material distributed therein, with an associated wicking layer of densified cellulosic fibers provided on one or both of the expansive surfaces of the fibrous web for enhancing liquid transport within the absorbent matrix.
  • Disposable diaper 10 further includes a backing layer 16 positioned on the side of the absorbent panel 14 which is opposite the facing layer 12. While the backing layer may comprise
  • the backing layer 16 comprise a moisture-pervious material, such as a non-woven fabric as used for facing layer 12, except backing layer 16 is preferably more
  • a moisture-impervious barrier layer 18 is preferably provided so that it underlies the absorbent panel, but is positioned inwardly of the backing layer 16.
  • a suitable material for the barrier layer 18 is an opaque polyolefin, for example, polyethylene about 0.0005-0.001 inches thick. Another suitable material for this purpose is polyethylene
  • terephthalate having a thickness of about
  • adhesives, or hydrophobic coatings of silicone or flurocarbon compounds can be applied to the layer 16 to provide the desired barrier properties.
  • the preferred relative dimensioning of the barrier layer 18 and the backing layer 16 should be noted.
  • the barrier layer have a surface area which is less than the surface area of the backing layer, most
  • the surface area of the barrier layer being no more than about 75 percent of the surface area of the backing layer.
  • this construction positions the preferably non-woven backing layer 16 at the exterior of the diaper, with its cloth-like texture desirably lending aesthetic appeal to the construction.
  • facing layer 12 may comprise a non-woven web made of a mixture of fibers consisting predominantly of
  • Patent No. 3,663,348, to Liloia, et al. The
  • non-woven fabrics may also be formed from polyester, polyethylene, polypropylene, nylon, rayon, or the like.
  • Non-woven materials for the facing layer 12 of the present diaper can have fabric weights in the range of from about 0.3 to 5 ounces per square yard and densities of less than 0.2 grams/cc, generally in the range of 0.05 to about 0.1 grams/cc.
  • the dry strength of the facing sheet material for a fabric having a weight of about 1.5 ounces per square yard is at least 0.15 pounds per inch of width, in the machine direction, and at least 0.1 pound per inch of width in the cross direction.
  • Such fabrics have good elongation, loft, softness, and drape characteristics.
  • Facing layer 12 and backing layer 16 may also be made of an apertured non-woven fabric which is formed, for example, in accordance with the
  • these layers may also be made from other types of fabrics such as those disclosed and described in U.S. Patent No. 3,485,706, to Evans. Such fabrics can be made of naturally occurring fibers, synthetic fibers, or blends thereof.
  • polypropylene type fibers may have a weight of about 0.7 ounces per square yard.
  • facing layer and backing layer of the present construction may be made from non-apertured materials such as non-woven isotropic webs or apertured polyolefin or polyester films having the desired moisture permeability.
  • Spun-bonded and melt-blown fabrics can also be employed.
  • the materials should be relatively hydrophobic so as to retard wicking within the material.
  • facing layer 12, absorbent panel 14, and barrier layer 18 all be of a
  • backing layer 16 be of a generally I-shaped, contoured configuration for the desired fit.
  • the backing layer 16 includes a pair of rearward ear portions 20, and a pair of forward ear portions 22, between which are defined a pair of generally cut-out leg openings 24.
  • the desired fit and leakage-resistant characteristics for the present disposable diaper are achieved by providing each leg opening 24 with one or more associated elastic elements whereby a gathering or contracting force is created at the leg openings so that the diaper conforms to and follows the movements of the wearer's legs.
  • elastic members or the like is intended to encompass elastic materials, pre-stretched monofilament strands, polyurethane films or foams, elastomeric films, shrink film and other materials and structures which can be arranged to exert a gathering force on the associated diaper components.
  • elastic refers to sheets, films, ribbons, strands, elastic hot melt adhesives, elastomeric foams and nettings and the like which preferably have a recovery of at least 50 percent, when elongated at least 10 percent of their yield point, and measured in accordance with the following formula:
  • L t length of sample measured three seconds after released from extended length.
  • the thickness of monofilament elastic members is generally 10 mils or less.
  • the thickness of elastic film material is typically about 0.5 to 2.0 mils.
  • Elastomeric foam materials typically have a thickness of 1-2 mm.
  • the elastic members have an extensibility to rupture of at least about 150 percent, and a recovery at 50 percent elongation of at least about 50 percent, and preferably at least about 75 percent.
  • each leg opening 24 is provided with a plurality of generally parallel, elastic members 26 which cooperate to provide the desired sealing or gasketing effect at the leg opening, without applying undue force to the wearer of the diaper.
  • Elastic elements 26 may be adhesively secured in position, or otherwise secured, such as ultrasonically, as is known in the art.
  • the innermost stretch elements will be located, for the most part, in the fold of the groin of the infant while the other stretch elements and the sides of the diaper fold onto the infant's upper thigh. Therefore, the distance between the innermost stretch elements, measured across the absorbent panel, determines the width of the diaper which must be accommodated in the space between the thighs by folding or corrugating. If this distance is
  • the minimum distance between the innermost elastic elements, W E as shown in FIGURE 3, should be no more than about 1.25 time: the width W P of the associated absorbent panel 14.
  • the minimum dimension between the opposite, innermost ones of the elastic elements 26 of diaper 10 is preferably less than the minimum transverse dimension of the moisture impervious barrier layer 18, with the innermost elastic elements 26 positioned on top of the barrier layer 18 in the illustrated embodiment.
  • the superposed, multiple layers of the disposable diaper 10 may be secured together by any manner of known bonding techniques, including use of adhesives in the form of glue lines or sprays, and/or by ultrasonic bonding.
  • barrier layer 18 is secured to backing layer 16, with absorbent panel 14 in turn then secured to the barrier layer.
  • Facing layer 12 is superposed on the absorbent panel, and is secured, typically with glue lines, to the backing layer 16, barrier layer 18, and to the absorbent panel 14.
  • disposable diaper 10 is generally in position for fitting to a wearer (although in FIGURE 2, for purposes of clarity, the product has been shown substantially stretched in opposition to elastic members 26) .
  • a baby With the diaper in a position generally as shown, a baby is placed face up on the diaper.
  • the forward portion of the diaper having ear portions 22 is brought up between the baby's legs to a position covering the perineum and contiguous with the front portion of the baby's waist.
  • the diaper is thereafter secured to the baby by bringing the rearward ear portions 20 around the baby into overlapping relation with the forward ear portions 22.
  • adhesive tape fasteners 28 are provided on the rearward ear portions 20.
  • Each of these fasteners 28 include a tab-like element having pressure-sensitive adhesive thereon which, when brought into contact with the forward, outer waist portion of the diaper, secures the diaper in position.
  • the outer forward waist portion of the diaper is preferably provided with a fastener-receiving strip 30 (sometimes referred to as a "target tape” or a “tape landing zone”) to which the adhesive fasteners 28 are respectively secured.
  • the fastener-receiving strip 30, which typically comprises a strip of plastic film adhesively secured to backing layer 16, is preferred for a variety of reasons.
  • the use of strip 30 assists in the correct positioning of the tape fasteners 28 for achieving the desired fit of the diaper.
  • the strip 30 can be configured to cooperate with the adhesive of the tape fasteners 28 to provide a secure, yet releasable adhesive bond; a mother can thereby easily check to see whether a diaper "needs changing.
  • the strip 30 desirably acts to reinforce the forward portion of the diaper, thus facilitating the above opening and resealing without rupture of the diaper backing layer; this is a particularly desirable feature when the backing layer 16 is made from plastic film material.
  • the backing layer 16 is made from a breathable non-woven fabric as is presently preferred, the provision of strip 30 further desirably functions to provide the desired adhesive coaction with tape fasteners 28, which is desirable since the fibrous nature of a non-woven backing layer does not lend itself to secure bonding with adhesives such as typically used for tape fasteners 28.
  • diaper 110 functions in a manner similar to those elements in the various elements of diaper 110.
  • the disposable diaper 110 comprises a topsheet or facing layer 112, preferably of moisture-pervious non-woven fabric, which is superposed on an absorbent panel 114.
  • the absorbent panel 114 is positioned atop of a backing layer 116, preferably also comprising a non-woven fabric, with a moisture-impervious barrier layer 118 positioned between the absorbent panel and the backing layer.
  • barrier layer 118 are folded inwardly over the opposite lateral edges of absorbent panel 114, with the opposite lateral edges of the absorbent panel also folded inwardly in the illustrated embodiment.
  • This alternate construction can enhance containment of waste material generally upon and within the absorbent panel 114, thus
  • backing layer 116 is of a contoured configuration, including rearward ear portions 120, and forward ear portions
  • a plurality of elastic elements 126 are
  • Adhesive tape fasteners 128 are respectively provided on the rear ear portions 120 for securing the diaper in position on a wearer.
  • the tested embodiment of the present low bulk diaper (designated LBD in the test data) was configured in accordance with the illustrated
  • the test samples included an absorbent panel in accordance with the preferred embodiment of the invention, and which is disclosed in U.S. Patents No. 4,500,315, No. 4,537,590, and No. 4,573,998, and which panel can be formed in accordance with the method of U.S. Patent No. 4,540,454, all to Pieniak, et al., and all of which are incorporated herein by reference.
  • This absorbent panel comprises an absorbent matrix of a substantially high loft, resilient fibrous web layer, with superabsorbent material distributed within the fibrous web layer.
  • the superabsorbent material is preferably in the form of a plurality of particles or globules of superabsorbent disposed in a random and intermittent arrangement throughout the fibrous web.
  • the particles or globules are of a size and spacing so that they do not interfere with the absorption of liquid by adjacent particles.
  • the fibrous web layer is maintained in a compressed state by the superabsorbent material, after undergoing compression during manufacture of the panel.
  • wetting of the absorbent matrix wets the superabsorbent material, so that the fibrous web layer expands from its
  • the absorbent matrix of the panel further includes liquid transport means in operative association with the absorbent fibrous web.
  • the transport mechanism comprises at least one wicking layer of densified hydrophilic fibers, with the wicking layer being coextensive with at least a portion of a respective expansive surface of the fibrous web layer of the absorbent matrix.
  • this arrangement has been found to provide a very efficient absorbent structure, in that the densified wicking layer promotes liquid transport from a point of introduction to various portions of the associated fibrous web and superabsorbent.
  • an absorbent matrix in accordance with the above patents was employed having a density of 0.26 grams/cc, and a mean thickness of 0.13 inches.
  • the above-described wicking layer is provided on each side of the compressed fibrous web of the structure, thus enhancing liquid transport.
  • the superabsorbent material provided in the absorbent matrix comprise 200 to 1500 percent, by dry weight basis, of the fibrous material in the fibrous web, with the
  • the absorbent composite is made by four steps. First, a structure is made by blending polyester fiber T-375W manufactured by DuPont and
  • BICO 1040 fiber made by BASF, in a ratio of 67/33%. This blend is carded into a high bulk non-woven web structure of approximately 1.20 oz/yd 2 weight and passed through an air bonder at a temperature of
  • the second step consists of applying a coating of potassium aery late solution at a
  • the monomer is added by suction coating to a level of 12.0 oz/yd 2 of dry coating weight.
  • the coating is polymerized and cross-linked into a superabsorbent polymer by multiple electron beam irradiations of 2
  • Pulp wicking layers are attached as the third step. Prior to this, the polymer was adjusted to 25% moisture content. It is passed through the suction zone of a Hammermill where pulp is
  • Pulp is applied to the other side similarly and the entire composite is lightly sprayed with water and compressed to a thickness of .143 inches.
  • the fourth step consists of drying the composite in a rotary thru air dryer at 400° F. until it has a moisture content of less than 10%. It is softened by passing through embossing rolls as described in U.S. Patent No. 4,605,402.
  • Samples A-Q For comparison purposes, a number of different commercially available disposable diaper products were tested, with these designated Samples A-Q in the following test data. Between 10 and 20 individual samples were measured for generating the following data, with the arithmetic mean of data collected from like samples set forth in the
  • a measure of comfort can be determined by comparing the cross-section of a diaper crotch area in relation to the distance between the upper thighs of infants.
  • the diaper, and specifically the panel has to fold and/or
  • cross-section (cross-sectional diaper bulk) exceeds the distance between the infant's legs is a measure of discomfort.
  • cross-sectional diaper width of the various samples tested is shown when the panel is folded once (twice the panel thickness) to four times (eight times the panel thickness). Folding of the diaper between twice (four times panel thickness) and three times (six times panel thickness) is very commonly observed when infants wear diapers. As will be observed from Table II, all of the diapers except the present low bulk diaper exceed by far the space (0.0 to 0.46
  • characteristics of the various diaper samples can be expressed as a Diaper Compression Index.
  • the above test data relates to multiples of panel/diaper thickness in relation to the distance between the infant's legs.
  • Another consideration for diaper fit and comfort is panel width and diaper width. Consumers prefer a snug fitting diaper because of its aesthetically appealing appearance, and the ease with which outer clothing can be applied over the diaper. It is therefore undesirable for the diaper to hang or bag in a pouch-like manner between the infant's legs.
  • the diaper with the smallest cross-sectional area should be the least bulky and hence the most comfortable.
  • the present low bulk diaper creates just slightly more than one-half as much cross-sectional bulk area (in square inches) between the infant's legs (0.585 square inches) compared to the next best product tested.
  • Sample A (0.90 square inches). It will be noted that some of the samples are many times bulkier than the present low bulk diaper. It is presently preferred that a medium sized diaper (for infants between 12 and 24 pounds) have a cross-sectional bulk at that portion of the diaper absorbent panel that fits between the thighs of no more than about 0.6 square inches.
  • FIGURE 4 shows the same infant (female, 18 months) for which the distance between the infant's thighs was measured at 0.13 inches when standing without a diaper.
  • FIGURE 4 the infant is shown wearing the present low bulk diaper, with an increase of the distance between the legs being 0.52 inches.
  • Sample D was fitted to the same infant, which resulted in the infant's legs being further spaced apart an increased distance of 2.37 inches.
  • panel volume of the diaper impact zone (within the crotch region) is related to the distance between the infant's thighs without a diaper in a natural standing position.
  • the impact zone is defined as the second and third fifths of the diaper absorbent panel, as measured from the front of the panel.
  • the illustrated embodiment is at least coextensive with this portion of the absorbent panel 14, and preferably coextensive with substantially the entire panel.
  • the length of the impact zone of the diaper where urination is most likely to occur is, for mid-size diapers (for infants 12-24 pounds)
  • this factor for the present low bulk diaper is calculated as follows:
  • Another factor which determines the fit and comfort level of a diaper relates to. the distance between the innermost elastic elements at the leg openings of the product. Elastic elements tend to contract or gather the side portions of the diaper in order for the diaper to conform snugly to the
  • the innermost ones of the elastic elements of a diaper will be located, for the most part, in the fold of the groin of the infant, with other elastic elements in the sides of the diaper folded onto the infant's upper thigh. It is therefore the distance between the innermost elastic members, measured across the absorbent panel, that determines the width of the diaper which has to be accommodated in the space between the thighs via folding or corrugating. As will be appreciated, if this distance is large, excessive bagging or hanging of the diaper between the infant's thighs will occur. Accordingly, it is desirable to minimize this distance, while still providing the desired waste containment characteristics.
  • Diaper Fit Index is shown below, with the following Table VI showing values for the present low bulk diaper, as well as for the commercial products which were tested. As will be observed, this index is a ratio of the distance between the innermost elastic elements of a diaper product, measured across the diaper panel in the crotch area, and the distance between the upper thighs of infants.
  • the present low bulk diaper when compared to other commercial products, has one of the narrowest diaper panels and the smallest distance between the
  • the final parameter of the present low bulk diaper relates to its absorptive characteristics, thus providing a diaper which provides improved fit and comfort, while at the same time providing
  • the parameters of diaper comfort and fit are associated with a thin, narrow pad, with the innermost elastic elements along each panel edge placed as close to the panel as feasible.
  • the diaper panel in the impact zone has to be able to absorb anticipated volumes of voided liquid in a relatively small panel volume.
  • the present low bulk diaper is designed in such a way that the panel bulk (i.e., the volume of the absorptive medium) in the crotch area (i.e., impact zone) is mimimized while the absorptive capacity in the impact zone is at the required level as to assure a low probability of diaper failure due to urine leakage.
  • the impact zone is defined as
  • Urine volume 90th percentile in overnight use 220 cc.
  • Crotch area impact zone 6 Volume in crotch region approximately 60% of the total volume. Crotch area impact zone 6".
  • Crotch area impact zone is defined by the second and third fifths of the panel length measured from front end of diaper. This length is
  • zone length x 16.39 cc/cu in. Note: The highest number denotes a diaper which absorbs the largest with the least panel volume.
  • the disposable diaper embodying the principles of the present invention enhances the comfort for the wearer since the diaper can be worn without forcing a dramatic dislocation of the thighs and legs of an infant as is the usual case with currently available commercial products. Not only does this provide greater comfort, it is believed that the present diaper construction could provide pediatric benefits to the infants by avoiding
  • the present diaper is configured to provide high absorptive capacity in the impact zone while at the same time exhibiting low panel bulk, i.e., exhibits high absorbency
  • the manner in which the present diaper is configured so that the innermost ones of the elastic elements of the leg openings are spaced as closely together provides a snug fit between the infant's legs, thus facilitating

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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)
  • Absorbent Articles And Supports Therefor (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)

Abstract

La couche jetable décrite (10) est particulièrement conçue pour assurer un ajustage et un confort meilleurs, ainsi que pour présenter une capacité d'absorption et des caractéristiques de résistance aux fuites accrues. On obtient un ajustage et un confort meilleurs en équipant la couche d'une bande intérieure absorbante étroite et relativement peu épaisse (14), laquelle est conçue pour assurer une grande efficacité d'absorption en vue de conférer à la couche des caractéristiques de performance accrues. La couche est en outre munie d'ouvertures élastiques (24) pour les jambes, qui comportent chacune plusieurs éléments élastiques (26). Parmi ces éléments élastiques, ceux qui sont le plus à l'intérieur sont disposés relativement proches les uns des autres, pour assurer un meilleur ajustage de la couche.
PCT/US1989/004783 1988-10-27 1989-10-26 Couche jetable peu volumineuse WO1990004375A1 (fr)

Applications Claiming Priority (2)

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US26352988A 1988-10-27 1988-10-27
US263,529 1988-10-27

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0477802A1 (fr) * 1990-09-21 1992-04-01 Kimberly-Clark Corporation Produit absorbent hygiénique
WO1996032083A1 (fr) * 1995-04-13 1996-10-17 The Procter & Gamble Company Articles absorbants pour nourrissons
WO1997046185A1 (fr) * 1996-06-04 1997-12-11 Kao Corporation Article absorbant
EP0890350A1 (fr) * 1997-07-08 1999-01-13 The Procter & Gamble Company Articles absorbants jetables comprenant une couche arrière en tissu imité ayant une perméabilité différentielle au gaz et son procédé de production
US6149637A (en) * 1994-01-03 2000-11-21 The Procter & Gamble Company Elastomeric disposable absorbent article and method of making same
US7211072B2 (en) 2003-01-31 2007-05-01 The Procter & Gamble Company Waist belt for supporting disposable absorbent assemblies and absorbent articles comprising the same

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Publication number Priority date Publication date Assignee Title
US3938522A (en) * 1972-06-26 1976-02-17 Johnson & Johnson Disposable diaper
US4573988A (en) * 1983-06-20 1986-03-04 Personal Products Company Superthin absorbent product
US4838885A (en) * 1985-09-06 1989-06-13 Kimberly-Clark Corporation Form-fitting self-adjusting disposable garment with a multilayered absorbent

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Publication number Priority date Publication date Assignee Title
GB1317156A (en) * 1969-06-05 1973-05-16 Boots Co Ltd Babies napkins
US4699620A (en) * 1985-09-06 1987-10-13 Kimberly-Clark Corporation Form-fitting self-adjusting disposable garment with a multilayered absorbent
US4661102A (en) * 1985-12-03 1987-04-28 The Procter & Gamble Company Disposable diaper featuring crotch tensioning means for improved leakage resistance and fit

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Publication number Priority date Publication date Assignee Title
US3938522A (en) * 1972-06-26 1976-02-17 Johnson & Johnson Disposable diaper
US4573988A (en) * 1983-06-20 1986-03-04 Personal Products Company Superthin absorbent product
US4838885A (en) * 1985-09-06 1989-06-13 Kimberly-Clark Corporation Form-fitting self-adjusting disposable garment with a multilayered absorbent

Non-Patent Citations (1)

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Title
See also references of EP0441842A4 *

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0477802A1 (fr) * 1990-09-21 1992-04-01 Kimberly-Clark Corporation Produit absorbent hygiénique
US6149637A (en) * 1994-01-03 2000-11-21 The Procter & Gamble Company Elastomeric disposable absorbent article and method of making same
WO1996032083A1 (fr) * 1995-04-13 1996-10-17 The Procter & Gamble Company Articles absorbants pour nourrissons
KR100263230B1 (ko) * 1995-04-13 2000-09-01 데이비드 엠 모이어 유아용 흡수제품
CN1098058C (zh) * 1995-04-13 2003-01-08 普罗克特和甘保尔公司 婴儿吸湿用品
WO1997046185A1 (fr) * 1996-06-04 1997-12-11 Kao Corporation Article absorbant
US6551297B2 (en) 1996-06-04 2003-04-22 Kao Corporation Absorbent article
EP0890350A1 (fr) * 1997-07-08 1999-01-13 The Procter & Gamble Company Articles absorbants jetables comprenant une couche arrière en tissu imité ayant une perméabilité différentielle au gaz et son procédé de production
WO1999002114A1 (fr) * 1997-07-08 1999-01-21 The Procter & Gamble Company Articles absorbants jetables a zones de respirabilite differentes, pourvus d'une feuille de support au toucher similaire a celui d'un tissu et leur procede de fabrication
US7211072B2 (en) 2003-01-31 2007-05-01 The Procter & Gamble Company Waist belt for supporting disposable absorbent assemblies and absorbent articles comprising the same

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Publication number Publication date
EP0441842A4 (en) 1992-01-22
CA1333951C (fr) 1995-01-17
EP0441842A1 (fr) 1991-08-21

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