Patent · US Expired

Method of producing a fibrous material layer

US6511566B1 · kind B1 · utility

8Cited by

23References

23Claims

0Family size

Assignee

SCA HYGIENE PRODUCTS AB · SE

Inventors

Peter Wessel · Brussels, BE
Urban Nilsson · Degerfors, SE
Kent Edgren · Mölnlycke, SE
Jose-Maria Mansisidor · Mölnlycke, SE
Dragoljub Kustrimovic · Umeå, SE

Key dates

Filing date	Dec 3, 1998
Grant date	Jan 28, 2003
Priority date	—
Expiry date	Dec 3, 2018

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/24479
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

Method of producing a fibrous material layer mainly intended to be incorporated in an absorbent article such as a diaper, pant diaper, incontinence guard, sanitary napkin or the like. At least one bundle of continuous filaments, so called tow (12), is opened and the filaments are separated and evened to a layer having the desired fiber distribution, after which the layer is bonded in points, spots or lines in a bonding pattern, but where the filaments otherwise are substantially unbonded to each other.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.