CA2518303A1 - Disposable absorbent article - Google Patents

Disposable absorbent article Download PDF

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Publication number
CA2518303A1
CA2518303A1 CA002518303A CA2518303A CA2518303A1 CA 2518303 A1 CA2518303 A1 CA 2518303A1 CA 002518303 A CA002518303 A CA 002518303A CA 2518303 A CA2518303 A CA 2518303A CA 2518303 A1 CA2518303 A1 CA 2518303A1
Authority
CA
Canada
Prior art keywords
water
absorbent
resin powder
absorbent resin
sheet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002518303A
Other languages
French (fr)
Other versions
CA2518303C (en
Inventor
Taichiro Suzuki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Livedo Corp
Original Assignee
Livedo Corporation
Taichiro Suzuki
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
Priority claimed from JP2003067287A external-priority patent/JP4502586B2/en
Priority claimed from JP2003175148A external-priority patent/JP4416441B2/en
Application filed by Livedo Corporation, Taichiro Suzuki filed Critical Livedo Corporation
Publication of CA2518303A1 publication Critical patent/CA2518303A1/en
Application granted granted Critical
Publication of CA2518303C publication Critical patent/CA2518303C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • A61F13/535—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
    • A61F13/45—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
    • A61F2013/49082—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterized by the shape of the outline being a complex shape not covered by the other groups A61F2013/49068-A61F2013/4908
    • 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

Abstract

A disposable absorbent article includes an absorbent mat between a liquid-permeable top sheet and a liquid-impermeable back sheet. The absorbent mat includes a sheet-shaped water-absorbent layer that contains a water-absorbent resin powder but that does not contain pulp fibers; and a fiber assembly layer that contains a water-absorbent resin powder and pulp fibers in this order from a top sheet side. The sheet-shaped water-absorbent layer includes a plurality of water-absorbent resin presence regions in each of which the water-absorbent resin powder is wrapped; and a plurality of water-absorbent resin powder absence regions each being formed between the two adjacent water-absorbent resin powder presence regions.
CA002518303A 2003-03-12 2004-03-12 Disposable absorbent article Expired - Fee Related CA2518303C (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP2003067287A JP4502586B2 (en) 2003-03-12 2003-03-12 Disposable absorbent article
JP2003-067287 2003-03-12
JP2003-175148 2003-06-19
JP2003175148A JP4416441B2 (en) 2003-06-19 2003-06-19 Disposable absorbent article
PCT/JP2004/003349 WO2004080361A1 (en) 2003-03-12 2004-03-12 Disposable absorbent article

Publications (2)

Publication Number Publication Date
CA2518303A1 true CA2518303A1 (en) 2004-09-23
CA2518303C CA2518303C (en) 2009-06-23

Family

ID=32992963

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002518303A Expired - Fee Related CA2518303C (en) 2003-03-12 2004-03-12 Disposable absorbent article

Country Status (10)

Country Link
US (1) US7767878B2 (en)
EP (1) EP1609448B1 (en)
KR (1) KR100740976B1 (en)
AT (1) ATE463219T1 (en)
AU (1) AU2004220667B2 (en)
CA (1) CA2518303C (en)
DE (1) DE602004026426D1 (en)
ES (1) ES2340279T3 (en)
PT (1) PT1609448E (en)
WO (1) WO2004080361A1 (en)

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KR100740976B1 (en) 2007-07-19
EP1609448B1 (en) 2010-04-07
PT1609448E (en) 2010-04-29
ES2340279T3 (en) 2010-06-01
WO2004080361A1 (en) 2004-09-23
KR20050106025A (en) 2005-11-08
US7767878B2 (en) 2010-08-03
AU2004220667A1 (en) 2004-09-23
AU2004220667B2 (en) 2008-09-11
US20060184146A1 (en) 2006-08-17
ATE463219T1 (en) 2010-04-15
EP1609448A4 (en) 2007-08-08
EP1609448A1 (en) 2005-12-28
CA2518303C (en) 2009-06-23
DE602004026426D1 (en) 2010-05-20

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