Method of producing a fibrous material layer, a fibrous...

Details Method of producing a fibrous material layer, a fibrous... Method of producing a fibrous material layer, a fibrous...

2005-05-03

2005-05-03

Stephens, Jacqueline F. (Department: 3761)

Surgery

Means and methods for collecting body fluids or waste material

Absorbent pad for external or internal application and...

C604S384000, C604S365000, C604S379000, C604S380000, C604S385010, C156S166000, C156S167000, C156S182000, C156S196000, C156S264000, C162S109000, C162S111000, C162S125000

Reexamination Certificate

active

06888045

ABSTRACT:
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.

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