Extruding nozzle for producing non-wovens and method therefor

Details Extruding nozzle for producing non-wovens and method therefor Extruding nozzle for producing non-wovens and method therefor

1998-08-13

2000-04-18

Tentoni, Leo B.

Plastic and nonmetallic article shaping or treating: processes

Direct application of fluid pressure differential to...

Production of continuous or running length

264103, 2642108, 26421114, 425 722, 425192S, 425463, D01D 5098, D01D 514

Patent

active

06051180&

ABSTRACT:
A parallel plate nozzle for extruding visco-elastic fluidic materials, useable in the manufacture of non-woven materials, and method therefor dispenses a plurality of first and second fluids from a corresponding plurality of first and second orifices to form first and second adjacent fluid flows. The first fluid flows are drawn and attenuated by not more than one corresponding second fluid flow at a second velocity greater than a first velocity of the first fluid flow to form corresponding first fluid filaments, which are preferably relatively continuous and vacillated chaotically. The first and corresponding second fluid flows are spaced as closely as possible to maximize filament drawing efficiency, and adjacent first fluid orifices are spaced sufficiently apart to prevent merging of the first fluid flows prior filament formation.

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