High strength fine spunbound fiber and fabric

Details High strength fine spunbound fiber and fabric High strength fine spunbound fiber and fabric

1993-11-22

1996-08-20

Ryan, Patrick

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

428224, 428280, 428296, 428365, 526351, 525216, 525 88, 525 95, 525240, C08L 2310, D02G 300, D04H 158

Patent

active

055477461

ABSTRACT:
A nonwoven fiber and fabric and process for production are provided which have comparable strength characteristics to conventional fibers and fabrics and are of a finer diameter. This is accomplished through a process of producing a nonwoven fabric made from at least one polymer which has a melt temperature between about 410.degree. and 470.degree. F. (210.degree. and 243.degree. C.), xylene solubles between about 3.5 and 7.0%, a melt flow rate between about 30 and 45, and an isotacticity of at least about 94%, extruding the polymer through fine openings, drawing the polymer to produce fibers of a denier of 1.4 or less, and then depositing the fiberized polymer on a collecting surface to form a web of disbursed fibers.
The nonwoven fabric of this invention may be used in products such as, for example, diapers, feminine hygiene products, adult incontinence products, wound dressings, bandages, sterilization wraps, surgical drapes and wipers.

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