Stretch nonwoven fabric and method for production thereof

Details Stretch nonwoven fabric and method for production thereof Stretch nonwoven fabric and method for production thereof

2004-01-23

2010-02-09

Salvatore, Lynda (Department: 1794)

Fabric (woven, knitted, or nonwoven textile or cloth, etc.)

Nonwoven fabric

Spun-bonded nonwoven fabric

C442S328000, C442S329000, C442S407000

Reexamination Certificate

active

07659218

ABSTRACT:
A spunbonded elastic nonwoven fabric according to the invention comprises fibers formed from a polymer comprising a thermoplastic polyurethane elastomer, wherein the thermoplastic polyurethane elastomer has a starting temperature for solidifying of 65° C. or above as measured by a differential scanning calorimeter (DSC) and contains 3.00×106or less polar-solvent-insoluble particles per g as counted on a particle size distribution analyzer, which is based on an electrical sensing zone method, equipped with an aperture tube having an orifice of 100 μm in diameter, and wherein the fibers have diameters such that the standard deviation of fiber diameters (Sn) divided by the average fiber diameter (Xave) (Sn/Xave) gives a value of 0.15 or less.

REFERENCES:
patent: 1043438 (2000-10-01), None
patent: 07-503502 (1995-04-01), None
patent: 09-087358 (1997-03-01), None
patent: 09-291454 (1997-11-01), None
patent: 2002-522653 (2002-07-01), None
patent: WO 93/15251 (1993-08-01), None
patent: WO 99/39037 (1999-08-01), None
patent: WO 00/08243 (2000-02-01), None
International Search Report for PCT/JP2004/000568 dated Apr. 20, 2004.

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