Fibrous material layer, method for its manufacture, and...

Details Fibrous material layer, method for its manufacture, and... Fibrous material layer, method for its manufacture, and...

2006-02-14

2006-02-14

Calvert, John J. (Department: 3761)

Surgery

Means and methods for collecting body fluids or waste material

Absorbent pad for external or internal application and...

C604S379000, C604S384000, C604S380000

Reexamination Certificate

active

06998512

ABSTRACT:
Fibrous material layer intended to be incorporated in an absorbent article. The layer (5) 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 (5) in question, in which method at least two separate webs (15a, b) of opened and into a layer spread-out tow are fed into a bonding station (20), which webs exhibit different web tensions and/or web speeds, and that the webs (15a, b) with maintained relative difference in web tension and/or web speed are bonded together in said bonding pattern (10) into a laminate.

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