DK153916B - Fremgangsmaade til immobilisering af et hoejabsorberende pulverformigt materiale i en fiberstruktur. - Google Patents
Fremgangsmaade til immobilisering af et hoejabsorberende pulverformigt materiale i en fiberstruktur. Download PDFInfo
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- DK153916B DK153916B DK386280AA DK386280A DK153916B DK 153916 B DK153916 B DK 153916B DK 386280A A DK386280A A DK 386280AA DK 386280 A DK386280 A DK 386280A DK 153916 B DK153916 B DK 153916B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/53—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
- A61F13/531—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 a homogeneous composition through the thickness of the pad
- A61F13/532—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 a homogeneous composition through the thickness of the pad inhomogeneous in the plane of the pad
- A61F13/5323—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 a homogeneous composition through the thickness of the pad inhomogeneous in the plane of the pad having absorbent material located in discrete regions, e.g. pockets
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/15577—Apparatus or processes for manufacturing
- A61F13/15617—Making absorbent pads from fibres or pulverulent material with or without treatment of the fibres
- A61F13/15658—Forming continuous, e.g. composite, fibrous webs, e.g. involving the application of pulverulent material on parts thereof
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/51—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers
- A61F13/511—Topsheet, i.e. the permeable cover or layer facing the skin
- A61F13/51121—Topsheet, i.e. the permeable cover or layer facing the skin characterised by the material
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/53—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
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
- A61F13/539—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium characterised by the connection of the absorbent layers with each other or with the outer layers
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/56—Supporting or fastening means
- A61F13/58—Adhesive tab fastener elements
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/15577—Apparatus or processes for manufacturing
- A61F2013/15821—Apparatus or processes for manufacturing characterized by the apparatus for manufacturing
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/51—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers
- 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
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
- A61F2013/530131—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium being made in fibre but being not pulp
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/53—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
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/53—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
-
- 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
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
- A61F13/539—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium characterised by the connection of the absorbent layers with each other or with the outer layers
- A61F2013/5395—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium characterised by the connection of the absorbent layers with each other or with the outer layers with thermoplastic agent, i.e. softened by heat
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/56—Supporting or fastening means
- A61F13/58—Adhesive tab fastener elements
- A61F2013/582—Adhesive tab fastener elements with one strip on one place
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Epidemiology (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)
- Manufacturing & Machinery (AREA)
- Absorbent Articles And Supports Therefor (AREA)
- Laminated Bodies (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Treatment Of Liquids With Adsorbents In General (AREA)
- Multicomponent Fibers (AREA)
- Inorganic Fibers (AREA)
- Artificial Filaments (AREA)
- Bedding Items (AREA)
- Mechanical Coupling Of Light Guides (AREA)
- Glass Compositions (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
- Nonwoven Fabrics (AREA)
Description
i
DK 153916 B
Opfindelsen omhandler en fremgangsmåde til immobilisering af et højabsorberende pulverformigt materiale i en fiberstruktur og af den i krav l's indledning angivne art.
Højabsorberende produkter er sammensætninger, der svul-5 mer op ved tilstedeværelsen af væske til absorbering, men som ikke opløses, d.v.s., at væsken absorberes på quasi-irreversibel måde. Det drejer sig hovedsageligt om celluloseethere, alginater eller modificerede poly-acrylater.
10 Fiksering ved befugtning er i almindelighed fordelagtig ved at være billig og simpel, bortset fra den ved visse af de ovennævnte fremgangsmåder efterfølgende tørringsoperation, men har dog den ulempe, at de absorberende partikler svulmer op før tørringen. Dette betyder et 15 effekttab for de absorberende partikler, fordi deres overfladetilstand ændres. Endvidere kan flere partikler adhærere indbyrdes, hvilket fører til dannelsen af en hinde, som oftest et enkelt lag. For at undgå delvis gelatinering i forbindelse med fikseringsfremgangsmåderne 20 ved befugtning benytter andre fikseringsformer sig af et andet bindemiddel end vand.
Fra beskrivelsen til US patent nr. 3 837 343 kendes en absorberende måtte, hvis fibre er forbundne ved hjælp af et vandskyende klæbemiddel, som i måttens centrale 25 område er tilknyttet et overfladebehandlingsmiddel til forbedring af områdets fugtighedsoptagelse. Noget højabsorberende produkt er der ikke tale om.
Fra beskrivelsen til US patent nr. 3 903 889 er det kendt at dække overfladen af en fibervare med et lag 30 klæbestof, hvorefter der udstrøs partikler af et væskeabsorberende produkt på klæbestoflaget. Her vil klæbestoflaget væsentligt nedsætte partiklernes absorptions- 2
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evne.
En fiksering af det væskeabsorberende produkt med et klæbemiddel er simpel og økonomisk, men svækker produktets absorptionsevne på grund af klæbemidlets tilstedeværelse på en del af granulatets overflade.
5
Fra beskrivelsen til britisk patent nr. 1 193 433 er det kendt at sammenvalse en fiberstruktur omkring et højabsorberende granulat uden anvendelse af noget klæbemiddel. Da granulaterne kan glideforskydes og danne ophobninger visse steder og lakuner andre steder, bliver 10 den indre struktur inhomogen og formindsker herved varens samlede absorptionsevne.
Fra beskrivelsen til britisk patent nr. 1 564 558 kendes et komplet hygiejnebind med et øverste lag til berøring med brugerens krop, et centralt absorberende lag og 15 et impermeabelt underste lag. Det øverste lag består af indbyrdes forbundne absorberende fibre, i hvilke der er indpræget et antal kanaler til at lette fluidumspredningen. Det centrale absorberende lag er ikke fik-seret imellem de to yderste fiberlag, idet det her drejer 20 sig om en indbyrdes stabilisering af fibrene i en fibermåtte.
Opfindelsen har til formål at afhjælpe de nævnte ulemper ved de kendte fremgangsmåder og tilvejebringe en ny fremgangsmåde til indsætning af et højabsorberende pul-25 ver i en fibermåtte, hvorved der kan indsættes væsentlige mængder af pulveret til fuld udnyttelse af dettes absorptionsevne, og dette på en simpel, kontinuert og dermed økonomisk måde.
Dette opnås ifølge opfindelsen ved en fremgangsmåde 30 af den indledningsvis angivne art, der er ejendommelig ved den i krav l's kendetegnende del angivne foranstalt- 3
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ning. Herved opnås en fiksering af selve de absorberende produktområder inden for kohæsionslinierne uden formindskelse af absorptionsevnen.
En foretrukken udførelsesform for fremgangsmåden ifølge op-5 findelsen tilvejebringes ved at gå frem som angivet i krav 2's kendetegnende del.
Den dannede fiberopbygning med et højabsorberende produkt i pulverform kan anvendes i et stort antal absorptionsvarer, såsom barnebleer, hygiejnebind, stiklagener osv.
Opfindelsen forklares nærmere nedenfor i forbindelse med tegningen, hvor: fig. 1 er et tværsnit igennem et produkt fremstillet ifølge en første udøvelsesform for opfindelsen, fig. 2 er en perspektivisk afbildning af produktet på fig. 1, fig. 3 er en skematisk afbildning af de forskellige ar-15 bejdstrin for den første udøvelsesform for fremgangsmåden ifølge opfindelsen, fig. 4 viser opbygningen af et produkt opnået ved en anden udøvelsesform for fremgangsmåden ifølge opfindelsen, fig. 5 er en skematisk afbildning af graveringen i ka-landreringscylindrene, fig. 6 viser en ændret form for den anden udøvelsesform 20 med aflejring af pulveret i flere strimler, fig. 7 er et snit igennem et hygiejnebind med et absorberende element fremstillet ved fremgangsmåden ifølge opfindelsen, og
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4 fig. 8 er en perspektivisk afbildning af hygiejnebindet på fig. 7.
I den på fig. 1, 2 og 3 viste første udøvelsesform for fremgangsmåden ifølge opfindelsen af lægges Ot hø jabsor.be-5 rende produkt 3 i pulverform på e-t celluloseskumlag 1 med ringe tykkelse, mindre end 5 mm og fortrinsvis ca. 1 mm.
Et sådant celluloseskumlag kendes under navnet "fluff".
Det drejer sig om en måtte af cellulosefibre, fremstillet i tør tilstand, dvs. en simpel tør defibrering af en 10 folie af celluloselag, efterfulgt af en opsugning af individuelle fibre på en fast bærer eller et transportbånd. Aflægningen af det højabsorberende pulver kan ske kontinuerligt med en forholdsvis stor hastighed af hensyn til en høj ydelse.
15 Derefter overtrækkes det dannede produkt med. en anden dug 2 af fluff med en ringe tykkelse, fortrinsvis lig med tykkelsen af dugen 1, hvorved pulveret 3 bliver indeklemt imellem de to duge 1 og 2.
For at indeslutte det højabsorberende pulver og bibringe 20 dugene en vis kohæsion foretages derefter en koldpresning af den dannede fiberopbygning ved at lade denne passere imellem pressevalser med periferiske linieformede tænder, som danner kohæsionslinier i produktet imellem de to duge.
25 Fortrinsvis anvendes der cylindre med en gravering, som danner rudeformede alveoler. Eksempelvis kan alveolerne have et omfang på 11 mm x 7 mm og en dybde på 1,5 mm.
På fig. 1 og 2 er presselinieme angivet skematisk ved 4. Det ses, at de danner et netværk, hvor hver maske inde-30 slutter en vis mængde af det højabsorberende pulver.
5
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Fig. 3 er en skematisk afbildning af de forskellige ar-bejdstrin under den første udøvelsesform for fremgangsmåden ifølge opfindelsen. Dejen 5 defibreres i tør tilstand ved hjælp af en defibrator 6, hvorefter cellulosefibrene 5 indsuges ved hjælp af vakuum under et transportbånd, der forskydes i pilretningen d.
På den dannede dug 1 aflejres pulveret 3 gennem en tragt 8. Pulveret indesluttes ved overdækning af det dannede produkt med en anden dug 2 af fluff.
Produktet koldpresses ved gennemgang imellem valser 10 9 med en rudeformet gravering.
Dugen af fluff frembyder en tilstrækkelig elasticitet til at muliggøre en god ekspansion af den efter absorption dannede gel.
15 Det forstås, at man på denne måde kan tilvejebringe en fiberstruktur med en vilkårlig længde og bredde med et eller flere bånd af et højabsorberende produkt med en vilkårlig bredde, idet det absorberende produkt ikke aflægges i nærheden af sidekanterne for at undgå tab af pulver.
20 I en ændret udførelsesform kan man som vist på fig. 2 danne to parallelle presselinier 4a langs kanterne af båndet af det højabsorberende produkt. På denne måde indesluttes pulveret på sikker måde i aflejringsområdet.
I den på fig. 4, 5 og 6 viste ændrede udøvelsesform for 25 fremgangsmåden ifølge opfindelsen aflægges pulveret 13 af det højabsorberende produkt i strimler på en dug 11 af høj-krusede fibre, hvorefter denne opbygning overdækkes med en anden fibermåtte 12 af højkrusede kunstfibre af polyester og polypropylen.
DK 153916 B
6
Den første måtte af højkrusede fibre kan bestå af hydrofobe eller af hydrofile fibre, alt efter de ønskede re- p sultater. Den anden måtte, som har en vægt på 30 g/m , består af fibre med en længde på ca. 60 mm.
5 Den dannede opbygning kalandreres i varm tilstand. Bindingen af fibrene tilvejebringes ved varmsmeltning til indeslutning af pulveret 13» som er aflejret i strimler i fibermassen, ved hjælp af alveoler dannet ved graveringen i den anvendte cylinder (disse alveoler har eksempelvis 10 samme form som de ovenfor beskrevne alveoler i forbindelse med den første udøvelsesform for opfindelsen*(se fig. 5))· I forhold til den første udøvelsesform tilvejebringer denne udøvelsesform en fordelagtig fiberstruktur. Som vist på fig. 6, der viser en aflejring af pulver langs tre 15 strimler 13a, 13b og 13c, er det let at klippe langs afklipningslinier 14.1 og 14.2 beliggende i områderne uden pulver for at tilvejebringe strimler af et højabsorberende produkt ud. fra den dannede fiberstruktur 10. Strimlerne rulles derefter op og frembyder en 10 meget praktisk præsentation af produktet.
Den herved opnåede fiberstruktur er meget let at anvende, da den præsenterer sig i spoleform, hvis bredde varierer som funktion af det ønskede slutprodukt.
Hvad selve fikseringen af det højabsorberende produkt an-25 går, frembyder den mange fortrin: Det højabsorberende produkt opfylder helt sit formål, idet kornet ligger frit i en ekspanderbar alveole (højkrusede fibre). Den væske, der skal absorberes, bevæges og fastholdes i den højabsorberende strimmel som følge af opbygningens struktur 30 (teksturerede hydrofile eller hydrofobe fibre). Det dannede produkt er behageligt at berøre, og det forbliver smidigt, blødt og modstandsdygtigt.
7
DK 153916B
I en ændret udførelsesform kan man opnå et lignende produkt uden varmkalandrering, ved at lade den efter overtrækningen med den anden måtte dannede fiberstruktur gennemløbe en varmluftsovn. Bindingen af fibrene sker ved varm-5 smeltning uden kalandrering.. I dette tilfælde frembyder produktet et lidt større rumfang.
De ifølge de beskrevne udførelsesformer dannede fiberstrukturer. anvendes hensigtsmæssigt til fremstilling af hygiejnebind. Fig. 7 og 8 viser et eksempel på et hygiej-10 nebind fremstillet ud fra den ved frengangsmåden ifølge opfindelsen opnåede fiberstruktur.
Hygiejnebindet består af en absorberende kerne 20, fremstillet ifølge en af de ovenfor beskrevne fremgangsmåder, hvor den fra brugersken bortvendende over-15 flade er overtrukket med et omslag 21 af polyethylen eller lignende materiale. Det U-formede omslag 21 dækker også kanterne af den absorberende kerne 20 for at undgå udsivning til siderne.
Opbygningen omsluttes af et ikke-vævet omslag 22, som 20 kan lukkes med en klat lim 23.
På den side af hygiejnebindet, der er dækket af polyethy-len-folien 21, overtrækkes midterpartiet med et eller flere strøg lim 24 (eksempelvis varmsmeltningsklæbende) til fiksering af hygiejnebindet.
25 Før brugen beskyttes klæbemidlet ved hjælp af en konventionel siliconepapirstrimmel 26.
Til fremstilling af et hygiejnebind med en længde på 230 mm og en bredde på 65 mm anvendes der to duge af fluff med en totalvægt på 5 g og en mængde af et pulverformet 30 højabsorberende produkt på mellem 0,5 og 3 g. Til den absorberende kerne 20 kan der eventuelt knyttes en støttefolie 25 af vat til opretholdelse af fluff-stoffet.
Claims (1)
- 2. Fremgangsmåde, ifølge krav 1, kendetegnet ved, at koldpresningen foretages langs hinanden skærende 20 linier til dannelse af et maskenet (4).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7900717A FR2446357B1 (fr) | 1979-01-12 | 1979-01-12 | Procede d'insertion de produits super-absorbants dans une structure fibreuse |
FR7900717 | 1979-01-12 |
Publications (3)
Publication Number | Publication Date |
---|---|
DK386280A DK386280A (da) | 1980-09-11 |
DK153916B true DK153916B (da) | 1988-09-26 |
DK153916C DK153916C (da) | 1989-02-20 |
Family
ID=9220671
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK386280A DK153916C (da) | 1979-01-12 | 1980-09-11 | Fremgangsmaade til immobilisering af et hoejabsorberende pulverformigt materiale i en fiberstruktur. |
Country Status (13)
Country | Link |
---|---|
EP (1) | EP0022792B1 (da) |
JP (1) | JPH0245458B2 (da) |
AT (1) | ATE7359T1 (da) |
BE (1) | BE880554A (da) |
CA (1) | CA1134126A (da) |
DE (1) | DE2966974D1 (da) |
DK (1) | DK153916C (da) |
ES (1) | ES487220A0 (da) |
FI (1) | FI71873C (da) |
FR (1) | FR2446357B1 (da) |
IT (1) | IT1119650B (da) |
NO (1) | NO151308C (da) |
WO (1) | WO1980001455A1 (da) |
Families Citing this family (36)
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NZ205183A (en) * | 1982-08-13 | 1987-01-23 | Unilever Plc | Wiping cloth includes a liquid"active material" |
US4670011A (en) * | 1983-12-01 | 1987-06-02 | Personal Products Company | Disposable diaper with folded absorbent batt |
US4960477A (en) * | 1983-12-01 | 1990-10-02 | Mcneil-Ppc, Inc. | Disposable diaper with folded absorbent batt |
JPS60215804A (ja) * | 1984-04-04 | 1985-10-29 | 花王株式会社 | 吸収性物品 |
CA1260202A (en) * | 1984-04-13 | 1989-09-26 | Leo J. Bernardin | Absorbent structure designed for absorbing body fluids |
FR2583674B1 (fr) * | 1985-06-24 | 1987-08-28 | Beghin Say Sa | Procede d'incorporation de produits pulverulents a l'interieur d'un matelas de fibres et dispositif pour sa mise en oeuvre |
JPS6323078Y2 (da) * | 1985-06-28 | 1988-06-24 | ||
DE3525379A1 (de) * | 1985-07-16 | 1987-01-22 | Klaus Hagenmeyer Gmbh | Absorbierende vorlage fuer sanitaere, medizinische und/oder hygienische zwecke |
JPH0620476B2 (ja) * | 1985-07-31 | 1994-03-23 | メ−ルンリユ−ケ・ア−ベ− | おむつ、衛生ナプキンまたは傷包帯の如き使い捨て物品用吸収材料 |
FR2599945A2 (fr) * | 1985-10-25 | 1987-12-18 | Boisson Claire | Couches absorbantes jetables a zone fixe d'absorption renforcee, differenciee selon le sexe du porteur. |
FR2604064B1 (fr) * | 1986-09-23 | 1991-02-08 | Boussac Saint Freres Bsf | Coussin absorbant pour des couches-culottes et des articles d'hygiene analogues et couche-culotte comportant un tel coussin absorbant. |
JPH04503168A (ja) * | 1988-11-16 | 1992-06-11 | プリンシプル ビジネス エンタープライジズ インコーポレイテッド | 身体使用吸収製品 |
CA2014203C (en) * | 1989-05-08 | 2000-03-21 | Margaret Gwyn Latimer | Absorbent structure having improved fluid surge management and product incorporating same |
ZA92308B (en) | 1991-09-11 | 1992-10-28 | Kimberly Clark Co | Thin absorbent article having rapid uptake of liquid |
FR2682591A1 (fr) * | 1991-10-16 | 1993-04-23 | Proteco Sarl | Couche-culotte a haut pouvoir absorbant. |
MX213505B (da) | 1993-02-24 | 2003-04-03 | ||
US5433715A (en) * | 1993-10-29 | 1995-07-18 | Kimberly-Clark Corporation | Absorbent article which includes superabsorbent material located in discrete pockets having water-sensitive and water-insensitive containment structures |
US5411497A (en) * | 1993-10-29 | 1995-05-02 | Kimberly-Clark Corporation | Absorbent article which includes superabsorbent material located in discrete pockets having an improved containment structure |
CA2116953C (en) * | 1993-10-29 | 2003-08-19 | Kimberly-Clark Worldwide, Inc. | Absorbent article which includes superabsorbent material located in discrete elongate pockets placed in selected patterns |
US5425725A (en) * | 1993-10-29 | 1995-06-20 | Kimberly-Clark Corporation | Absorbent article which includes superabsorbent material and hydrophilic fibers located in discrete pockets |
EP0729334B1 (en) * | 1993-11-17 | 2003-03-26 | The Procter & Gamble Company | Corrugated capillary substrate having selectively disposed discrete parts of osmotic absorbent material |
ATE167049T1 (de) * | 1993-11-19 | 1998-06-15 | Procter & Gamble | Osmotische und kapillare absorbierstruktur unterschiedlicher dichte und verfahren zu ihrer herstellung |
GB9402706D0 (en) * | 1994-02-11 | 1994-04-06 | Minnesota Mining & Mfg | Absorbent materials and preparation thereof |
SE508244C2 (sv) * | 1994-02-24 | 1998-09-21 | Moelnlycke Ab | Absorptionskropp samt anordning för framställning av en sådan absorptionskropp |
DK0682927T3 (da) * | 1994-05-13 | 1999-11-29 | Procter & Gamble | Skærm mod tab af absorberende partikler i absorberende produkter |
DE69424040T2 (de) * | 1994-06-22 | 2000-10-12 | Procter & Gamble | Verbinden einer Faserbahn mit einem Gewebe durch Prägen |
US5505719A (en) * | 1994-06-30 | 1996-04-09 | Mcneil-Ppc, Inc. | Multilayered absorbent structures |
US5494622A (en) * | 1994-07-12 | 1996-02-27 | Kimberly-Clark Corporation | Apparatus and method for the zoned placement of superabsorbent material |
US5866173A (en) * | 1996-11-18 | 1999-02-02 | The Procter & Gamble Company | Apparatus for producing absorbent products |
ES2170827T3 (es) * | 1996-12-04 | 2002-08-16 | Procter & Gamble | Proceso para fabricar estructuras en capas individuales que comprenden material en particulas, y estructuras en capas asi obtenidas. |
EP0860158A1 (en) | 1996-12-20 | 1998-08-26 | The Procter & Gamble Company | Process for manufacturing individual layered structures comprising particulate material |
US5792513A (en) * | 1997-03-07 | 1998-08-11 | Koslow Technologies Corporation | Continuous solid state web coating process |
EP0875225B1 (en) * | 1997-04-30 | 2003-02-05 | The Procter & Gamble Company | Individual layered structures containing particulate material, and process for manifacturing said structures |
US6872275B2 (en) | 2001-12-14 | 2005-03-29 | Kimberly-Clark Worldwide, Inc. | Process for adding superabsorbent to a pre-formed fibrous web via in situ polymerization |
US7018497B2 (en) | 2001-12-14 | 2006-03-28 | Kimberly-Clark Worldwide, Inc. | Method of making an absorbent structure having high integrity |
US6918981B2 (en) | 2001-12-14 | 2005-07-19 | Kimberly-Clark Worldwide, Inc. | Process for adding superabsorbent to a pre-formed fibrous web using two polymer precursor streams |
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GB1193433A (en) * | 1966-03-09 | 1970-06-03 | Harold Fenton | Improvements in or relating to absorbent sanitary aids |
US3837343A (en) * | 1971-10-07 | 1974-09-24 | Johnson & Johnson | Disposable diaper, fabric useful therein, and method of manufacture |
US3903889A (en) * | 1973-02-16 | 1975-09-09 | First National Bank Of Nevada | Disposable liquid absorbent products |
GB1564558A (en) * | 1976-12-27 | 1980-04-10 | Kimberly Clark Co | Die-cut contoured catamenial napkin of multi-layered construction |
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US2788003A (en) * | 1955-06-06 | 1957-04-09 | Chicopee Mfg Corp | Disposable absorbent pad |
US3881491A (en) * | 1974-03-29 | 1975-05-06 | Procter & Gamble | Self-inflating structure |
US4055180A (en) * | 1976-04-23 | 1977-10-25 | Colgate-Palmolive Company | Absorbent article with retained hydrocolloid material |
-
1979
- 1979-01-12 FR FR7900717A patent/FR2446357B1/fr not_active Expired
- 1979-12-05 JP JP55500051A patent/JPH0245458B2/ja not_active Expired - Lifetime
- 1979-12-05 DE DE7979901666T patent/DE2966974D1/de not_active Expired
- 1979-12-05 WO PCT/FR1979/000120 patent/WO1980001455A1/fr unknown
- 1979-12-05 AT AT79901666T patent/ATE7359T1/de not_active IP Right Cessation
- 1979-12-11 BE BE0/198522A patent/BE880554A/fr not_active IP Right Cessation
- 1979-12-14 CA CA342,102A patent/CA1134126A/fr not_active Expired
- 1979-12-21 ES ES487220A patent/ES487220A0/es active Granted
- 1979-12-31 IT IT69506/79A patent/IT1119650B/it active
-
1980
- 1980-01-07 FI FI800048A patent/FI71873C/fi not_active IP Right Cessation
- 1980-01-11 NO NO800067A patent/NO151308C/no unknown
- 1980-07-29 EP EP79901666A patent/EP0022792B1/fr not_active Expired
- 1980-09-11 DK DK386280A patent/DK153916C/da not_active IP Right Cessation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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GB1193433A (en) * | 1966-03-09 | 1970-06-03 | Harold Fenton | Improvements in or relating to absorbent sanitary aids |
US3837343A (en) * | 1971-10-07 | 1974-09-24 | Johnson & Johnson | Disposable diaper, fabric useful therein, and method of manufacture |
US3903889A (en) * | 1973-02-16 | 1975-09-09 | First National Bank Of Nevada | Disposable liquid absorbent products |
GB1564558A (en) * | 1976-12-27 | 1980-04-10 | Kimberly Clark Co | Die-cut contoured catamenial napkin of multi-layered construction |
Also Published As
Publication number | Publication date |
---|---|
ES8101165A1 (es) | 1980-12-16 |
NO151308C (no) | 1985-03-20 |
ATE7359T1 (de) | 1984-05-15 |
JPH0245458B2 (da) | 1990-10-09 |
NO800067L (no) | 1980-07-14 |
NO151308B (no) | 1984-12-10 |
FI71873C (fi) | 1987-03-09 |
CA1134126A (fr) | 1982-10-26 |
WO1980001455A1 (fr) | 1980-07-24 |
DK386280A (da) | 1980-09-11 |
ES487220A0 (es) | 1980-12-16 |
BE880554A (fr) | 1980-04-01 |
JPS55501088A (da) | 1980-12-11 |
DE2966974D1 (en) | 1984-06-14 |
FR2446357B1 (fr) | 1985-07-12 |
IT1119650B (it) | 1986-03-10 |
EP0022792A1 (fr) | 1981-01-28 |
DK153916C (da) | 1989-02-20 |
FI800048A (fi) | 1980-07-13 |
EP0022792B1 (fr) | 1984-05-09 |
IT7969506A0 (it) | 1979-12-31 |
FR2446357A1 (fr) | 1980-08-08 |
FI71873B (fi) | 1986-11-28 |
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Legal Events
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PBP | Patent lapsed |