Post-treatment of laminated nonwoven cellulosic fiber webs

Details Post-treatment of laminated nonwoven cellulosic fiber webs Post-treatment of laminated nonwoven cellulosic fiber webs

1993-07-22

1995-08-22

Spitzer, Robert

Gas separation

Two or more separators

Plies or layers of different characteristics or orientation

55487, 55524, 55528, 55DIG5, 55DIG39, B01D 3916

Patent

active

054436060

ABSTRACT:
A method for post-treating a laminated precursor nonwoven web which includes layers of thermoplastic man-made fibers and at least one layer of cellulose-based staple natural fibers, including consolidating the web longitudinally and thereby reducing the maximum pore size measure of the web. The precursor web and the resultant consolidated nonwoven web are also disclosed, as is utilization of the product web in medical uses.

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