Method of producing plastic fibers or filaments, preferably in c

Details Method of producing plastic fibers or filaments, preferably in c Method of producing plastic fibers or filaments, preferably in c

1990-08-17

1992-03-24

Heitbrink, Jill L.

Plastic and nonmetallic article shaping or treating: processes

Direct application of fluid pressure differential to...

Production of continuous or running length

264556, 264174, 425 722, D01D 5088

Patent

active

050986368

ABSTRACT:
In place of discrete orifice spinnerets, a nozzle unit for thermoplastified thermoplastic material in the production of nonwoven fabric has a wide-slit nozzle at least one lip of which is formed with sawtooth serrations so that a film emerges from the nozzle and is broken up by an air stream into continuous filaments or short fibers for the production of the nonwoven fabric by the normal spun-bond drawing process or by the melt-blown process.

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