Melt-blown nonwoven wiper

Details Melt-blown nonwoven wiper Melt-blown nonwoven wiper

1989-12-19

1991-08-13

Bell, James J.

Plastic and nonmetallic article shaping or treating: processes

Forming articles by uniting randomly associated particles

Stratified or layered articles

156 628, 156286, 428284, 428903, 264 6, D04H 116

Patent

active

050394312

ABSTRACT:
There is disclosed a nonwoven wiper comprising a composite web made of a number of interbonded layers of meltblown thermoplastic fibers. The outer layers have average pore sizes greater than 20 microns and preferably greater than 40 microns for rapid pick up of liquid. The internal layers have average pore sizes between 10-20 microns for liquid holding capacity.

REFERENCES:
patent: Re31885 (1985-05-01), Meitner
patent: 3795571 (1974-03-01), Prentice
patent: 3849241 (1974-11-01), Butin et al.
patent: 4165352 (1979-08-01), Volhman
patent: 4436780 (1984-03-01), Hotchkiss et al.
patent: 4666763 (1987-05-01), Hing et al.
patent: 4714647 (1987-12-01), Shipp et al.
patent: 4774125 (1988-09-01), McAmish
NRL Report 4364, V. A. Wente, E. L. Boone, D. C. Fluharty, May 1954.
NRL Report 5265, K. D. Lawrence, R. T. Lucas, J. A. Young, Feb. 1959.

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