US Patent 7560159 Synthetic staple fibers for an air-laid nonwoven fabric

Patent 7560159 was granted and assigned to Teijin on July, 2009 by the United States Patent and Trademark Office.

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Is a

Patent

Patent attributes

Current Assignee

Teijin

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7560159

Date of Patent

July 14, 2009

Patent Application Number

10584468

Date Filed

February 23, 2005

Patent Primary Examiner

‌

N. Edwards

Patent abstract

Synthetic staple fibers having good air opening property and useful for producing an air-laid nonwoven fabric having excellent quality, have a fiber length of 0.1 to 45 mm and a cross-sectional profile having 1 to 30 concavities, in which cross-sectional profile the ratio D/L, of a largest depth D of each concavity to a largest width L of the opening of the concavity, is in the range of from 0.1 to 0.5.