Soft nonwoven fabric of filaments

Details Soft nonwoven fabric of filaments Soft nonwoven fabric of filaments

1990-04-20

1992-04-28

Cannon, James C.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

428 74, 428 77, 428288, 428296, 428370, 428374, 604378, A61F 1346, D04H 314

Patent

active

051088207

ABSTRACT:
Nonwoven fabrics formed, in spun-bonding process, of crimped bi-component composite filaments composed of (A) a first component composed of (a) 3 to 40% by weight of a propylene/ethylene random copolymer having a melting point, determined from DSC main peaks of 110.degree. to 150.degree. C. and a melt flow rate [ASTM D-1238 (L)] of not more than 15 g/10 minutes and (b) 97 to 60% by weight of polyethylene having a melt flow rate [ASTM-D-1238 (E)] of at least 15 g/10 minutes, and (B) a second component comprising crystalline polypropylene having a melt flow rate [ASTM D-1238 (L)] of at least 10 g/10 min. as a main component, have a soft feel and are suitable for use as, e.g., disposable bed sheets and liners for diapers.

REFERENCES:
patent: 3900678 (1975-08-01), Aishima et al.
patent: 4211819 (1980-07-01), Kunimune et al.

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