Sca Hygiene Products Ab

Husqvarna Ab

Johan Wahlström

Jan Wästlund-Karlsson

Stefan Kullberg

Ken Olsson

Peter Björkman

Carin Håkansson

Bror-Inge Helmfridsson

Kenneth Karlsson

Patrik Andersson

Anne Farbrot

Per O Viktorsson

Carl-Johan Arnesson

Fredrik Krook

Fredrik Cederholm

Lena Björnström

Leif Alm

Sven-Erik Johansson

Margareta Eriksson

Chain saw body

Fibrous material layer intended to be incorporated in an absorbent article. The layer () comprises at least two webs of tow fibers arranged on top of each other, which are bonded to each other into a laminate by means of a bonding pattern, and where one is corrugated and the other web is substantially smooth, wherein the corrugated web exhibits a more open structure in comparison to the smooth web. A method of manufacturing the layer () in question, in which method at least two separate webs () of opened and into a layer spread-out tow are fed into a bonding station (), which webs exhibit different web tensions and/or web speeds, and that the webs () with maintained relative difference in web tension and/or web speed are bonded together in said bonding pattern () into a laminate.

Fibrous material layer, method for its manufacture, and absorbent article comprising the material layer in question

A fibrous material and a method of producing it, the material is mainly intended to be incorporated in an absorbent article and comprises a layer of continuous fibers, so-called tow, which have been bonded together in points, lines or spots in a bonding pattern, but otherwise are substantially unbonded to each other. The tow layer is bonded with at least two bonding patterns: a first relatively strong and diffuse bonding pattern, and a second more distinct second bonding pattern. Bonding of at least the first bonding pattern takes place by thermobonding, wherein a pattern roll is used which provide the desired bonding patterns. In the first welding step the pattern roll is driven at a higher speed than the feeding speed of the tow layer, so as to create a relatively diffuse and strong bonding pattern.

Method of producing a fibrous material layer, a fibrous material layer and an absorbent article containing same

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Göteborg, Sweden

Johan Wahlström