SE9403906D0 - Method and apparatus for aerating fiber bodies to create parts with higher surface weight of the fiber bodies - Google Patents

Method and apparatus for aerating fiber bodies to create parts with higher surface weight of the fiber bodies

Info

Publication number
SE9403906D0
SE9403906D0 SE9403906A SE9403906A SE9403906D0 SE 9403906 D0 SE9403906 D0 SE 9403906D0 SE 9403906 A SE9403906 A SE 9403906A SE 9403906 A SE9403906 A SE 9403906A SE 9403906 D0 SE9403906 D0 SE 9403906D0
Authority
SE
Sweden
Prior art keywords
air
flow
mould
fibres
fiber bodies
Prior art date
Application number
SE9403906A
Other languages
Swedish (sv)
Other versions
SE9403906L (en
SE502797C2 (en
Inventor
Claes Goeransson
Gunnar Edvardsson
Original Assignee
Moelnlycke 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
Application filed by Moelnlycke Ab filed Critical Moelnlycke Ab
Priority to SE9403906A priority Critical patent/SE502797C2/en
Publication of SE9403906D0 publication Critical patent/SE9403906D0/en
Publication of SE9403906L publication Critical patent/SE9403906L/en
Publication of SE502797C2 publication Critical patent/SE502797C2/en

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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/32—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed at least two layers being foamed and next to each other

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Epidemiology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Manufacturing & Machinery (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Nonwoven Fabrics (AREA)

Abstract

A method used in a dry laying process fibrous bodies to create sections with relatively high basis weight comprises passing an air-permeable mould (14) through a flow of air containing airborne fibres in a direction at right angles to the direction of flow for the air. The base of the mould is angled relative to the direction in which the mould is being moved and relative to the air flow direction. The velocity of the air carrying the fibres and passing through the mould is uniform. Once the air has travelled through the mould the fibrous body left inside it is transferred to a flat underlay (18) whilst retaining its surface contours in a plane parallel to that of the underlay so that one side of the body is in contact with the underlay. The equipment used in this method is also claimed, including a device (15) for generating an airborne flow of fibres, an air-permeable conveyor (13) with angled sections and devices (16) for sucking air through the conveyor. The fibre flow and suction generating devices are designed to ensure a uniform velocity for the flow of air carrying the airborne fibres.
SE9403906A 1994-11-14 1994-11-14 Air laying process for producing fibrous bodies with regions of varying basis weight SE502797C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE9403906A SE502797C2 (en) 1994-11-14 1994-11-14 Air laying process for producing fibrous bodies with regions of varying basis weight

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9403906A SE502797C2 (en) 1994-11-14 1994-11-14 Air laying process for producing fibrous bodies with regions of varying basis weight

Publications (3)

Publication Number Publication Date
SE9403906D0 true SE9403906D0 (en) 1994-11-14
SE9403906L SE9403906L (en) 1996-01-15
SE502797C2 SE502797C2 (en) 1996-01-15

Family

ID=20395955

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9403906A SE502797C2 (en) 1994-11-14 1994-11-14 Air laying process for producing fibrous bodies with regions of varying basis weight

Country Status (1)

Country Link
SE (1) SE502797C2 (en)

Also Published As

Publication number Publication date
SE9403906L (en) 1996-01-15
SE502797C2 (en) 1996-01-15

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