Process for producing melt-blown thermoplastic articles

Details Process for producing melt-blown thermoplastic articles Process for producing melt-blown thermoplastic articles

1980-10-02

1984-04-10

Woo, Jay H.

Plastic and nonmetallic article shaping or treating: processes

Direct application of fluid pressure differential to...

Bulk deposition of particles by differential fluid pressure

19299, 65 44, 156167, 264176F, B28B 500

Patent

active

044420625

ABSTRACT:
A process and apparatus are provided for the production of a non-woven fabric by melt-blowing wherein one or more yarns, e.g. monofilaments, are added or charged into the fabric stream between the extruder and collector by means of a supporting and drawing pressure gas stream. In one embodiment means are provided to regulate flow of the gas stream. In another embodiment means are provided to reciprocate or to rotate through a small arc the one or more charging means.

REFERENCES:
patent: 2731066 (1956-01-01), Hagendoblev et al.
patent: 2732885 (1956-01-01), Hoven et al.
patent: 2785728 (1957-03-01), Slayfev et al.
patent: 2801673 (1957-08-01), Welsh et al.
patent: 2897874 (1959-08-01), Staleso et al.
patent: 4224373 (1960-09-01), Manzocchi et al.

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