Pillowed web of blown microfibers

Details Pillowed web of blown microfibers Pillowed web of blown microfibers

1976-03-15

1978-07-25

Lesmes, George F.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including variation in thickness

156 624, 264176F, 264DIG75, 428178, 428180, 428288, 428296, 428401, 428903, B32B 300, B32B 2702

Patent

active

041030583

ABSTRACT:
A novel blown microfiber web having a network of compacted high-density regions and pillowed low-density regions exhibits a unique combination of low density and good tensile strength and integrity. Such a web may be collected on a perforated screen so that microfibers deposited on the land area of the screen form the compacted high-density regions, and microfibers deposited over the openings of the screen form the pillowed low-density regions.

REFERENCES:
patent: 1316010 (1919-09-01), Zocher
patent: 2493968 (1950-11-01), Hepner
patent: 3266969 (1966-08-01), Makansi
patent: 3841953 (1974-10-01), Lohkamp et al.
patent: 3905863 (1975-09-01), Ayers

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