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 bodiesInfo
- 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
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
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.
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) |
-
1994
- 1994-11-14 SE SE9403906A patent/SE502797C2/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
SE9403906L (en) | 1996-01-15 |
SE502797C2 (en) | 1996-01-15 |
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