Point-bonded jet-softened polyethylene film-fibril sheet

Details Point-bonded jet-softened polyethylene film-fibril sheet Point-bonded jet-softened polyethylene film-fibril sheet

1989-07-24

1990-04-24

Bell, James J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

8639, 428171, D04H 158

Patent

active

049200011

ABSTRACT:
Point-bonding and water-jet-softening of a sheet of flash-spun polyethylene plexifilamentary film-fibril strands provide a nonwoven fabric that is particularly suited for dyeing and use in disposable protective garments. Garments made with the nonwoven fabric are comfortable and provide a good protection against particulate matter, such as air-borne asbestos particles.

REFERENCES:
patent: 3169899 (1965-02-01), Steuber
patent: 3403862 (1968-10-01), Dworjanyn
patent: 3442740 (1969-05-01), David
patent: 3478141 (1969-11-01), Dempsey et al.
patent: 3485706 (1970-02-01), Evans
patent: 4082887 (1978-04-01), Coates
patent: 4152389 (1979-05-01), Miller
patent: 4329763 (1982-05-01), Alexander et al.
"Protective Apparel of Du Pont Tyvek"-Safety You Can Wear, E-02145 (1987).
Research Disclosure, 21126, "Tyvek", Softening Process-(1 Nov. 1981).

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