WO1990014815A1 - Absorbent article comprising at least two superabsorbents - Google Patents

Absorbent article comprising at least two superabsorbents Download PDF

Info

Publication number
WO1990014815A1
WO1990014815A1 PCT/SE1990/000362 SE9000362W WO9014815A1 WO 1990014815 A1 WO1990014815 A1 WO 1990014815A1 SE 9000362 W SE9000362 W SE 9000362W WO 9014815 A1 WO9014815 A1 WO 9014815A1
Authority
WO
WIPO (PCT)
Prior art keywords
superabsorbent
liquid
layer
superabsorbents
layers
Prior art date
Application number
PCT/SE1990/000362
Other languages
English (en)
French (fr)
Inventor
Anders Roos
Magnus Quist
Jonas Hermansson
Original Assignee
Mölnlycke AB
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=20376127&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO1990014815(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Mölnlycke AB filed Critical Mölnlycke AB
Priority to CA002055605A priority Critical patent/CA2055605C/en
Publication of WO1990014815A1 publication Critical patent/WO1990014815A1/en
Priority to FI915622A priority patent/FI100298B/sv
Priority to NO914722A priority patent/NO178422C/no

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
    • A61F13/53—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
    • A61F13/5376—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 characterised by the performance of the layer, e.g. acquisition rate, distribution time, transfer time
    • 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
    • A61F13/47—Sanitary towels, incontinence pads or napkins
    • A61F13/475—Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means
    • A61F13/4751—Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means the means preventing fluid flow in a transversal direction
    • A61F13/4752—Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means the means preventing fluid flow in a transversal direction the means being an upstanding barrier
    • 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
    • A61F13/535—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
    • A61F13/53—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
    • A61F13/53743—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 characterised by the position of the layer relative to the other layers
    • A61F13/53752—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 characterised by the position of the layer relative to the other layers the layer is embedded in the absorbent core
    • 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
    • A61F13/15203—Properties of the article, e.g. stiffness or absorbency
    • A61F2013/15284—Properties of the article, e.g. stiffness or absorbency characterized by quantifiable properties
    • 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
    • A61F2013/4512—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 folded in special shape during use
    • 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 articles specially adapted to be worn around the waist, e.g. diapers
    • A61F2013/49068—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterized by the shape of the outline
    • A61F2013/49074—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterized by the shape of the outline hourglass; dog bone-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
    • A61F13/53—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
    • A61F2013/53051—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 only in particular parts or specially arranged
    • A61F2013/530532—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 only in particular parts or specially arranged the maximum being at certain depth in the thickness
    • 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
    • A61F2013/53051—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 only in particular parts or specially arranged
    • A61F2013/530547—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 only in particular parts or specially arranged positioned in a separate layer or 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
    • 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
    • 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
    • A61F2013/530708—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 absorbency properties
    • 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
    • A61F2013/530708—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 absorbency properties
    • A61F2013/530715—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 absorbency properties by the acquisition rate
    • 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
    • A61F2013/530708—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 absorbency properties
    • A61F2013/530715—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 absorbency properties by the acquisition rate
    • A61F2013/530729—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 absorbency properties by the acquisition rate by the swelling rate
    • 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
    • A61F2013/530708—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 absorbency properties
    • A61F2013/530737—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 absorbency properties by the absorbent capacity
    • A61F2013/530744—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 absorbency properties by the absorbent capacity by the absorbency under load
    • 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
    • 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
    • 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
    • A61F13/84—Accessories, not otherwise provided for, for absorbent pads
    • A61F2013/8488—Accessories, not otherwise provided for, for absorbent pads including testing apparatus
    • A61F2013/8491—Accessories, not otherwise provided for, for absorbent pads including testing apparatus including test methods

Definitions

  • the present invention relates to a disposable absorbent article, such as a disposable diaper, incontinence guard, sanitary towel or like article, comprising a liquid-permeable sheet which faces towards the wearer in use, an absorbent pad and a liquid-impermeable sheet which is distal from the wearer in use.
  • a disposable absorbent article such as a disposable diaper, incontinence guard, sanitary towel or like article, comprising a liquid-permeable sheet which faces towards the wearer in use, an absorbent pad and a liquid-impermeable sheet which is distal from the wearer in use.
  • Absorbent bodies or pads for disposable articles of the aforesaid kind have, for many years, normally been produced essentially from absorbent fibre material.
  • the fibre material used has most often been cellulose fluff mate- rial.
  • absorbent materials having a much greater absorption capacity than fluff have been developed and it has become progressively more general to incorporate these highly absorbent materials, so- called superabsorbents, in sanitary articles. Since the superabsorbents are able to absorb liquid in quantities many times greater than their own weight, the use of such materials in sanitary articles enables concider- able savings to be made in other kinds of absorption material, such as cellulose fluff. This is particularly desirable, since the articles can thereby be made thin ⁇ ner and therewith worn more discretely, which is a particularly important advantage in the case of adult incontinence.
  • the object of the present invention is to provide an absorbent article which comprises an absorbent pad having improved absorption properties with respect to earlier known absorbent pads, said absorbent pad com ⁇ bining the essential properties of an absorbent pad such as absorption rate and extremely good liquid- retention properties.
  • An absorbent article which comprises an absorbant pad constructed in accordance with the invention is primar ⁇ ily characterized in that the absorbent pad incorpor- ates at least two mutually different superabsorbents which are distinguished one from the other with respect to their respective absorption rates and liquid-reten ⁇ tion abilities.
  • the ability of the absorbent pad to absorb liquid can be substantially improved by incorporating in the pad two superabsor ⁇ bents which differ from one another with respect to absorption rate and to re-wetting tendency respective- ly. It is highly important to the invention that the different superabsorbents are disposed in separate layers or in separate regions of the absorbent pad or body. It is found that the absorbent pad will have far better absorption properties when the superabsorbents are held separated from one another than if said absor ⁇ bents are mixed together. Similarly, the incorporation of two superabsorbents will provide considerably better absorption than when only one of the superabsorbents is incorporated in the absorbent pad and the other exclu- ded therefrom.
  • the mutually relative location of the superabsorbents in the absorbent pad is also of great significance.
  • the superabsorbent which exhibits a high absorption rate is placed beneath the superabsor ⁇ bent which exhibits low re-wetting tendencies, as seen from the side surface facing towards the wearer, i.e. the liquid-receiving side-surface, better absorption properties are obtained than when the relative posi ⁇ tions of the superabsorbents is reversed.
  • Figure 1 is a view from above of an inventive absorbent article with the side of the article which faces towards the wearer in use facing towards the viewer.
  • Figure 2 is a cross-sectional view of the article shown in Figure 1, taken on the line II-II in said Figure.
  • Figure 3 is a view from above of another embodiment of an inventive absorbent article, with the side which faces the wearer in use facing towards the viewer.
  • Figure 4 is a cross-sectional view of the absorbent article shown in Figure 3, taken on the line IV-IV in said Figure.
  • Figures l and 2 illustrate an absorbent article 1, which is assumed to be a disposable diaper and which comprises a liquid-permeable sheet 3, preferably made of nonwoven fibre fabric.
  • the liquid-permeable sheet 3 is joined at the edge-parts 4 of the diaper to a li- quid-impermeable sheet 6 in a conventional manner, e.g. with the aid of an adhesive binder.
  • the fibre wadding has a loose structure, is elastically resilient, and is shape- stable in both a dry and a wet state.
  • the wadding com ⁇ prises natural or synthetic fibres, such as polyester, polypropylene or polyethylene fibres, or mixtures the ⁇ reof.
  • So-called bicomponent fibres are suitable mate ⁇ rials in this respect, by which is meant fibres co - posed of two types of polymer, for instance polypro ⁇ pylene/polyethylene, polyester/polyester or polyester/- polyethylene.
  • the fibre wadding 5 may also either be bound or non-bound with regard to its structure. Heat and adhesive bonding agents are examples of the means by which a fibre wadding structure can be bound.
  • the adhesive binding agent may be a latex binder, for in ⁇ stance.
  • An absorbent body is placed between the fibre wadding 5 and the liquid-impermeable sheet 6 distal from the wearer.
  • the absorbent pad 2 comprises a plurality of distance-maintaining dispers ⁇ ion layers 7 and superabsorbent materials 8, 9 disposed between said layers.
  • the absorbent pad of the Figure 2 embodiment includes three distance-maintaining disper ⁇ sion layers 7, although this number may be greater than three.
  • the layers 7 may, for instance, comprise one or more layers of tissue, although other materials, such as nonwoven or compressed cellulose fluff, may be used. It is important to the invention that the superabsorbent layers 8, 9 are held mutually separated and that the layer 9 is positioned closer to the wearer of the article than the layer 8.
  • a tissue layer 7 is placed immediately beneath the wadding 5 and is followed se ⁇ quentially by a superabsorbent layer 9, a tissue layer 7, a superabsorbent layer 8 and a tissue layer 7.
  • the superabsorbents in the layers 8, 9 are preferably in powder form, although other forms are conceivable, such as a fibre form for instance.
  • the superabsorbents in the layer 9 comprise a superabsorbent which exhibits very good liquid-retention properties, high surface- dryness and low re-wetting tendency. Such a super ⁇ absorbent is also characterized by a high gel strength.
  • the superabsorbents in the layer 8, on the other hand comprise a superabsorbent which exhibits a very high absorption rate.
  • the absorbent article 1 ' illustrated in Figures 3 and 4 is assumed to be an incontinence guard. With regard to the choice of materials and positioning of the fibre wadding 5, absorbent pad 2 and liquid-impermeable sheet 6, the construction of the incontinence guard 1 ' is identical to that of the diaper 1. Like reference signs in Figures 1, 2 and 3, 4 identify identical elements.
  • the incontinence guard 1' differs from the diaper 1 in a number of respects, however. Similar to the diaper 1 of Figures 1 and 2, the incon ⁇ tinence guard 1' comprises a liquid-permeable sheet 3, e.g. of nonwoven material, which is located nearest the wearer in use. This sheet, however, surrounds the in ⁇ continence guard around the whole of its periphery.
  • a liquid-permeable sheet 3 e.g. of nonwoven material
  • the incontinence guard 1 ' is divided by two longitudi ⁇ nally extending, curved fold lines 10, e.g. formed by weld seams or by adhesive bonds, into a central part 12 and two edge-parts 13.
  • the intention of the fold lines 10 is to fold-up the edge-parts 13 along said lines and to fixate said upwardly folded edge-parts in a perman ⁇ ent upstanding position with the aid of joining means 14, e.g. a binding agent or a welded seam, such as to obtain a three-dimensional basin-like absorbent article in which the edge-parts 13 function as sealing embank ⁇ ments in the lateral direction of the article.
  • the parts 12, 13 are relatively elongated, i.e. their extension in the longitudinal direction of the article is greater than the extension of the article in its transverse direction.
  • the end-parts of the incontinence guard are provided with joins 11, which may, for in- stance, have the form of welded joins or adhesive joins.
  • the fold lines 10 comprise welded joins or seams
  • such joins can be produced by appropriate, conventional welding techniques, e.g. ultrasonic welding, impulse welding or high frequency welding.
  • the fold lines 10 may also have a linear or arcuate shape, as an alterna ⁇ tive to the curve shape shown in Figure 3.
  • the fold lines 10 may either be continuous or discon ⁇ tinuous.
  • the fold lines may be formed by a broken curve of punctiform welds.
  • liquid-impermeable sheet 6 Located immediately beneath the absorbent pad 2, as seen from the wearer, is a liquid-impermeable sheet 6, which extends slightly up along the edge-parts and end- parts of the incontinence guard 1 ' and somewhat in over the fibre wadding 5 on the side surface of the incon- tinence guard 1 ' facing towards the wearer in use.
  • the extension of the liquid-impermeable layer 6 is shown with a broken line 17 in Figure 3.
  • an adhesive layer 15 Positioned on the underside of the incontinence guard is an adhesive layer 15, by means of which the guard can be removably attached to the underclothes of the wearer.
  • the adhesive layer 15 Prior to using the guard 1 ' , the adhesive layer 15 is protected by a protective layer 16, which is preferably siliconized or treated with a release agent in some other way, so that when the guard 1 ' is used, the protective material can be readily removed and therewith render the adhesive layer 15 active.
  • the absorption rate of six superabsorbents was measured in accordance with the Vortex-analysis method.
  • the six superabsorbents tested were all available commercially and sold under the trade names Aqualic CA W-4, Water- lock J 550, Aridall 1125, Aridall 1092, Sanwet IM 2200 D and Sanyo PA 200G.
  • a beaker containing 50 ml NaCl (aq) in a quantity of 9 g/liter was placed on a magnetic stirrer. The stirrer was set to rotate at a speed of 600 ⁇ 20 rpm.
  • 2.0 g of super- absorbent were poured into the beaker, externally of the Vortex.
  • a measurement was taken of the time that lapsed from the moment of adding the superabsorbent to the beaker to the moment that the Vortex disappeared and a completely smooth surface was obtained.
  • the proc- edure was repeated the requisite number of times.
  • Waterlock J 550, Aridall 1092 and Aridall 1125 were found to have much shorter absorption times than the other superabsorbents tested.
  • Waterlock J 550 is used in Examples 3-5 as an example of a superabsorbent which possesses a very high absorption rate.
  • Example 2 Measurements were made of the gel strength of the same superabsorbents as those whose absorption rates were measured in Example 1.
  • Table 2 shows the values obtained with an energy input of 3 mJ.
  • Aqualic CA W-4, Sanwet IM 2200 D and Sanyo PA 200 G exhibited high gel strength, whereas the remaining superabsorbents exhibited moderate or low gel strength.
  • a relationship between high gel strength and low re- wetting tendency, i.e. high liquid-retention, can be shown even though no clear relationship exists. Without intending to provide a complete explanation of this relationship, it can be mentioned that a strongly cross-linked, dense and hard gel is more difficult to compress than a gel having the opposite properties, and consequently it is more difficult to press absorbed liquid from a gel of the firstmentioned kind than from the lastmentioned kind.
  • the greater suc ⁇ tion force of a strongly cross-linked superabsorbent contributes to the low re-wetting tendency of said absorbent.
  • Higher degrees of cross-linking result in finer capillary systems, which in turn result in higher suction forces.
  • Low re-wetting tendencies can also be obtained by subjecting the gel to different types of surface treatment.
  • Aqualic CA W-4 and Sanyo PA 200 G were found to have by far the lowest re-wetting tendency of the superabsor ⁇ bents tested, this being in agreement with the gel strength measurements of Example 2.
  • Aqualic CA W-4 was used in the following examples as an example of a sur ⁇ face-dry superabsorbent having very high liquid-reten ⁇ tion properties.
  • the firstmentioned absorbent pad comprised an upper tissue-laminate in which 2.5 g Aqualic CA W-4 were placed in powder form, and a bottom tissue-laminate which contained 2.5 g Waterlock J 550 relative to the liquid-receiving surface material.
  • the last mentioned absorbent body included a tissue laminate which contained a mixture of varying quanti ⁇ ties Aqualic CA W-4 and Waterlock J 550.
  • All reference bodies included a nonwoven material , manufactured by Shiseida, and two pieces of fibre wad ⁇ ding, sold under the trade mark Dacron, placed on top of the absorbent pad.
  • the reference body was placed on an inclined surface, the angle of said surface to the horizontal being 30%. 100 ml of 0.9% NacL (aq) were poured onto the upper end of the body over a period of 7 seconds. The quantity of non-absorbed liquid was collected at the lower end of the body and weighed. The results are presented in Table 4 below.
  • a plate weighing 3.5 kg was laid on top of the refe ⁇ rence body. 50 ml of 0.9% Nacl (aq) were poured onto the reference body and the body was left to absorb the liquid for a period of 3 minutes. Filter papers weighing 5 g and having a diameter of 50 mm were placed on the wetting location and loaded with a pressure of 8 kg/dm 2 for 1 minute.
  • Aqualic CA W-4 is referenced AL and Waterlock J 550 is referenced WL.
  • the absorbent pad comprised an upper tissue-laminate containing 2.5 g superabsorbent, and a lower tissue-laminate containing 2.5 g of a superabsorbent different to the superabsor ⁇ bent in the upper laminate.
  • the superabsor ⁇ bent which exhibits a low re-wetting tendency can be placed nearest the liquid-receiving region (the so- called wetting location) and the rapidly-absorbing superabsorbent can be placed in a separate region out ⁇ side said wetting location, for instance in a circular region around said wetting location.
  • an absorbent pad can be constructed from more than two mutually diffe ⁇ rent superabsorbents having substantially differing absorption properties.
  • the super ⁇ absorbent may alternatively be placed on a material layer or mixed into said material layer, which in this latter case will preferably comprise a layer of fluff.

Landscapes

  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Veterinary Medicine (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
PCT/SE1990/000362 1989-05-31 1990-05-29 Absorbent article comprising at least two superabsorbents WO1990014815A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CA002055605A CA2055605C (en) 1989-05-31 1990-05-29 Absorbent article comprising at least two superabsorbents
FI915622A FI100298B (sv) 1989-05-31 1991-11-28 Absorberande produkt innehållande åtminstone två superabsorbenter
NO914722A NO178422C (no) 1989-05-31 1991-11-29 Absorbentartikkel omfattende minst to superabsorbenter

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8901964-0 1989-05-31
SE8901964A SE463747B (sv) 1989-05-31 1989-05-31 Absorberande alster innefattande aatminstone tvaa olika superabsorbenter

Publications (1)

Publication Number Publication Date
WO1990014815A1 true WO1990014815A1 (en) 1990-12-13

Family

ID=20376127

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1990/000362 WO1990014815A1 (en) 1989-05-31 1990-05-29 Absorbent article comprising at least two superabsorbents

Country Status (14)

Country Link
EP (2) EP0401189B2 (sv)
JP (1) JP2967207B2 (sv)
AT (2) ATE91876T1 (sv)
AU (1) AU630713B2 (sv)
CA (1) CA2055605C (sv)
DE (2) DE69002403T2 (sv)
DK (2) DK0401189T4 (sv)
ES (2) ES2085056T5 (sv)
FI (1) FI100298B (sv)
GR (3) GR3019463T3 (sv)
HU (1) HU209364B (sv)
NO (1) NO178422C (sv)
SE (1) SE463747B (sv)
WO (1) WO1990014815A1 (sv)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2682591A1 (fr) * 1991-10-16 1993-04-23 Proteco Sarl Couche-culotte a haut pouvoir absorbant.
EP0631768A1 (en) * 1993-06-30 1995-01-04 The Procter & Gamble Company Absorbent core having improved fluid handling properties
EP0640330A1 (en) * 1993-06-30 1995-03-01 The Procter & Gamble Company Hygienic absorbent articles
EP0639965A1 (en) * 1992-05-15 1995-03-01 The Procter & Gamble Company Catamenial device
US5545155A (en) * 1994-03-30 1996-08-13 Mcneil-Ppc, Inc. Absorbent article with plates
US5549590A (en) * 1994-08-01 1996-08-27 Leonard Pearlstein High performance absorbent particles and methods of preparation
US5562650A (en) * 1994-03-04 1996-10-08 Kimberly-Clark Corporation Absorbent article having an improved surge management
US5895710A (en) * 1996-07-10 1999-04-20 Kimberly-Clark Worldwide, Inc. Process for producing fine fibers and fabrics thereof
US6277104B1 (en) * 1997-08-25 2001-08-21 Mcneil-Ppc, Inc. Air permeable, liquid impermeable barrier structures and products made therefrom
US6278037B1 (en) * 1997-03-27 2001-08-21 The Procter & Gamble Company Absorbent article having improved comfort during use by improved fit even when loaded and improved rewet performance
WO2003080136A1 (en) * 2002-03-27 2003-10-02 Sca Hygiene Products Ab Absorbent product
EP0691133B2 (en) † 1994-07-05 2003-12-03 The Procter & Gamble Company Absorbent gelling material comprising a dry mixture of at least two types of hydrogel-forming particles and method for making the same
EP0636017B2 (en) † 1992-12-18 2005-06-29 Kimberly-Clark Worldwide, Inc. Multi-layer absorbent composite

Families Citing this family (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5028224A (en) * 1990-01-09 1991-07-02 Kimberly-Clark Corporation Apparatus for intermittently depositing particulate material in a substrate
US5728082A (en) * 1990-02-14 1998-03-17 Molnlycke Ab Absorbent body with two different superabsorbents
SE465553C (sv) * 1990-02-14 1996-06-24 Moelnlycke Ab Absorbtionskropp, i vilken ingår två skikt innehållande olika superabsorbenter
ZA92308B (en) 1991-09-11 1992-10-28 Kimberly Clark Co Thin absorbent article having rapid uptake of liquid
SE501166C2 (sv) * 1992-04-28 1994-11-28 Moelnlycke Ab Absorptionskropp för absorberande alster såsom en blöja innehållande superabsorbenter samt blöja innefattande absorptionskroppen
DK0576738T3 (da) * 1992-07-02 1997-10-27 Procter & Gamble Absorberende hydrogelsmåpartikler i absorberende strukturer
TW329666U (en) * 1993-05-12 1998-04-11 Kimberly Clark Co Absorbent article having enhanced wicking capability
DE9402463U1 (de) * 1994-02-15 1994-04-07 R. Demhartner GmbH & Co KG, 84051 Essenbach Saugfähiger Verbundwerkstoff
US5714156A (en) * 1994-07-05 1998-02-03 The Procter & Gamble Company Absorbent gelling material comprising a dry mixture of at least two types of hydrogel-forming particles and method for making the same
CA2153125A1 (en) * 1994-08-31 1996-03-01 Frank Paul Abuto Liquid-absorbing article
DE69618173T2 (de) * 1995-01-10 2002-08-22 Procter & Gamble Absorbierender artikel mit flüssigkeitskontrolle
US6020536A (en) * 1996-06-28 2000-02-01 Sca Hygiene Products Ab Absorbent body for absorbent articles
JP3442943B2 (ja) * 1996-10-23 2003-09-02 花王株式会社 吸収性物品
EP0893113A1 (en) * 1997-07-25 1999-01-27 The Procter & Gamble Company Absorbent articles having a liquid swellable breathable backsheet
US6436508B1 (en) 1997-07-25 2002-08-20 The Procter & Gamble Company Absorbent articles having a liquid swellable material coated breathable backsheet
JP3449523B2 (ja) * 1997-08-29 2003-09-22 花王株式会社 吸収性物品
US6383960B1 (en) 1997-10-08 2002-05-07 Kimberly-Clark Worldwide, Inc. Layered absorbent structure
JP3447951B2 (ja) 1998-04-09 2003-09-16 ユニ・チャーム株式会社 使い捨ての体液吸収性物品
US6710225B1 (en) 1998-06-15 2004-03-23 Kimberly-Clark Worldwide, Inc. Layered absorbent structure with a zoned basis weight
SE513261C2 (sv) † 1998-12-16 2000-08-14 Sca Hygiene Prod Ab Absorberande alster innefattande en synergistisk kombination av en pH-reglerande substans och mjölksyrabakterier
WO2000061048A1 (en) * 1999-04-12 2000-10-19 Kao Corporation Disposable diaper
CN1377286A (zh) 1999-09-30 2002-10-30 陶氏化学公司 高吸水性聚合物对基材的粘合
US6416697B1 (en) 1999-12-03 2002-07-09 Kimberly-Clark Worldwide, Inc. Method for obtaining a dual strata distribution of superabsorbent in a fibrous matrix
US6459016B1 (en) * 1999-12-23 2002-10-01 Mcneil-Ppc, Inc. Absorbent article with multiple high absorbency zones
US6437214B1 (en) 2000-01-06 2002-08-20 Kimberly-Clark Worldwide, Inc. Layered absorbent structure with a zoned basis weight and a heterogeneous layer region
US20010037101A1 (en) * 2000-03-17 2001-11-01 Allan David S. Tagged superabsorbent polymers in a multicomponent structure
US6575952B2 (en) * 2001-05-11 2003-06-10 Kimberly-Clark Worldwide, Inc. Absorbent article having a multilayer absorbent core
US20020169428A1 (en) 2001-05-11 2002-11-14 Kimberly-Clark Worldwide, Inc. Absorbent article having a multilayer blended core and a method of forming
JP2003135524A (ja) * 2001-11-07 2003-05-13 Uni Charm Corp 使い捨ておむつ
US20030118764A1 (en) * 2001-12-20 2003-06-26 Adams Ricky Alton Composite fluid distribution and fluid retention layer having machine direction zones and Z-direction gradients for personal care products
US6890622B2 (en) 2001-12-20 2005-05-10 Kimberly-Clark Worldwide, Inc. Composite fluid distribution and fluid retention layer having selective material deposition zones for personal care products
JP2005288265A (ja) 2004-03-31 2005-10-20 Procter & Gamble Co 水性液吸収剤およびその製造方法
ES2382750T3 (es) * 2007-01-12 2012-06-13 The Procter & Gamble Company Núcleo absorbente que tiene una estructura mejorada
FR2914865B1 (fr) * 2007-04-13 2011-03-18 Olivier Revert Composition pulverulente pour absorber les liquides aqueux.
US7977531B2 (en) 2008-01-30 2011-07-12 Kimberly-Clark Worldwide, Inc. Absorbent articles comprising absorbent materials exhibiting deswell/reswell
US9707135B2 (en) * 2013-03-15 2017-07-18 Advanced Absorbent Technologies, Llc Disposable absorbent article
US10307311B2 (en) 2013-03-15 2019-06-04 Advanced Absorbent Technologies, Inc. Methods of making disposable absorbent undergarments
US10335325B2 (en) 2013-03-15 2019-07-02 Advanced Absorbent Technologies, Llc Ergonomic disposable absorbent garment
US9693911B2 (en) 2014-03-11 2017-07-04 Advanced Absorbent Technologies, Llc Core assembly for absorbing liquids
US10369246B2 (en) 2013-06-14 2019-08-06 Krp U.S., Llc Absorbent articles having pockets and related methods therefor
AU2018320726A1 (en) * 2017-08-24 2020-03-12 Arctic Express Packs LLC Cold packs system
WO2020152801A1 (ja) * 2019-01-23 2020-07-30 日洋サービス株式会社 植物の栽培方法及び植物の栽培装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2145661A (en) * 1983-08-24 1985-04-03 Chicopee Absorbent article with internal wicking means
US4578068A (en) * 1983-12-20 1986-03-25 The Procter & Gamble Company Absorbent laminate structure

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE465553C (sv) * 1990-02-14 1996-06-24 Moelnlycke Ab Absorbtionskropp, i vilken ingår två skikt innehållande olika superabsorbenter

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2145661A (en) * 1983-08-24 1985-04-03 Chicopee Absorbent article with internal wicking means
US4578068A (en) * 1983-12-20 1986-03-25 The Procter & Gamble Company Absorbent laminate structure

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0538535A1 (fr) * 1991-10-16 1993-04-28 Proteco Sarl Couche-culotte à haut pouvoir absorbant
FR2682591A1 (fr) * 1991-10-16 1993-04-23 Proteco Sarl Couche-culotte a haut pouvoir absorbant.
EP0639965A1 (en) * 1992-05-15 1995-03-01 The Procter & Gamble Company Catamenial device
EP0639965A4 (en) * 1992-05-15 1995-05-24 Procter & Gamble BAND FOR MONTHLY BLEEDING.
EP0636017B2 (en) † 1992-12-18 2005-06-29 Kimberly-Clark Worldwide, Inc. Multi-layer absorbent composite
EP0631768A1 (en) * 1993-06-30 1995-01-04 The Procter & Gamble Company Absorbent core having improved fluid handling properties
EP0640330A1 (en) * 1993-06-30 1995-03-01 The Procter & Gamble Company Hygienic absorbent articles
TR28301A (tr) * 1993-06-30 1996-04-09 Procter & Gamble Elyafli malzeme ve süper emici malzeme iceren emici gövdeler ve bu gövdeleri iceren emici esyalar.
US5762641A (en) * 1993-06-30 1998-06-09 The Procter & Gamble Company Absorbent core having improved fluid handling properties
US5562650A (en) * 1994-03-04 1996-10-08 Kimberly-Clark Corporation Absorbent article having an improved surge management
US5545155A (en) * 1994-03-30 1996-08-13 Mcneil-Ppc, Inc. Absorbent article with plates
EP0691133B2 (en) † 1994-07-05 2003-12-03 The Procter & Gamble Company Absorbent gelling material comprising a dry mixture of at least two types of hydrogel-forming particles and method for making the same
US5549590A (en) * 1994-08-01 1996-08-27 Leonard Pearlstein High performance absorbent particles and methods of preparation
US5895710A (en) * 1996-07-10 1999-04-20 Kimberly-Clark Worldwide, Inc. Process for producing fine fibers and fabrics thereof
US6278037B1 (en) * 1997-03-27 2001-08-21 The Procter & Gamble Company Absorbent article having improved comfort during use by improved fit even when loaded and improved rewet performance
US6277104B1 (en) * 1997-08-25 2001-08-21 Mcneil-Ppc, Inc. Air permeable, liquid impermeable barrier structures and products made therefrom
WO2003080136A1 (en) * 2002-03-27 2003-10-02 Sca Hygiene Products Ab Absorbent product
CN1296100C (zh) * 2002-03-27 2007-01-24 Sca卫生产品股份公司 吸收制品
AU2003216023B2 (en) * 2002-03-27 2009-02-05 Sca Hygiene Products Ab Absorbent product

Also Published As

Publication number Publication date
SE8901964L (sv) 1990-12-01
HU905140D0 (en) 1992-06-29
ATE91876T1 (de) 1993-08-15
SE8901964D0 (sv) 1989-05-31
FI100298B (sv) 1997-11-14
FI915622A0 (fi) 1991-11-28
DE69002403T2 (de) 1993-11-11
EP0558889B1 (en) 1996-03-27
EP0401189A1 (en) 1990-12-05
NO178422C (no) 1996-03-27
CA2055605A1 (en) 1990-12-01
GR3033027T3 (en) 2000-08-31
NO914722D0 (no) 1991-11-29
JPH04506305A (ja) 1992-11-05
HUT62190A (en) 1993-04-28
EP0558889B2 (en) 1999-12-22
DE69026277D1 (de) 1996-05-02
AU630713B2 (en) 1992-11-05
DK0401189T4 (da) 1996-11-04
AU5837590A (en) 1991-01-07
ES2085056T5 (es) 2000-06-01
GR3019463T3 (en) 1996-06-30
DK0558889T3 (da) 1996-05-20
EP0401189B1 (en) 1993-07-28
SE463747B (sv) 1991-01-21
ES2042269T3 (es) 1993-12-01
DE69026277T3 (de) 2001-10-11
CA2055605C (en) 2000-01-25
JP2967207B2 (ja) 1999-10-25
EP0558889A1 (en) 1993-09-08
ES2042269T5 (es) 1996-10-16
ATE135903T1 (de) 1996-04-15
DE69002403D1 (de) 1993-09-02
DK0558889T4 (da) 2000-05-29
EP0401189B2 (en) 1996-06-26
DE69026277T2 (de) 1996-08-22
HU209364B (en) 1994-05-30
NO914722L (no) 1992-01-29
GR3020762T3 (en) 1996-11-30
ES2085056T3 (es) 1996-05-16
NO178422B (no) 1995-12-18

Similar Documents

Publication Publication Date Title
EP0401189B1 (en) Absorbent article comprising at least two superabsorbents
KR100240359B1 (ko) 초흡수성 하이드로겔-형성 물질의 특정한 입경 분포를 갖는 흡수 구조물
JP3320732B2 (ja) 良好な流体処理特性を有する吸収コア
KR940000805B1 (ko) 1회용 이중층 흡수심 및 이를 포함하는 1회용 흡수용품
EP0637953B1 (en) An absorbent body for an absorbent article
RU2197212C2 (ru) Абсорбирующая структура, имеющая высокую степень использования
KR100312393B1 (ko) 흡수성복합체
US5855571A (en) Absorbent articles containing superabsorbent material which has a delayed activation time
EP0138427B1 (en) Compressed absorbent aggregate
EP0137644A2 (en) Corrugated web structure
US5599336A (en) Absorbent hydrogel fines in absorbent structures
PL168644B1 (pl) Korpus wchlaniajacy do artykulu higroskopijnego PL PL PL
CA2138657C (en) Absorbent hydrogel fines in absorbent structures
EP0442223B1 (en) Disposable absorbent product
JP3722550B2 (ja) 吸収性物品
JPH02189149A (ja) 吸収性エレメント
JPH0698909A (ja) 吸収性物品
JP3805035B2 (ja) 吸収性物品
JPH0520104B2 (sv)
JPH10337305A (ja) 吸収体及び吸収性物品
JPH0410339B2 (sv)
MXPA97001386A (en) Wet lining for auxiliary training for children for the excus
MXPA01006647A (en) Absorbent composites with enhanced intake properties

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AU CA FI HU JP NO US

WWE Wipo information: entry into national phase

Ref document number: 2055605

Country of ref document: CA

Ref document number: 915622

Country of ref document: FI

WWG Wipo information: grant in national office

Ref document number: 915622

Country of ref document: FI