Process for the production of nonwoven webs including a drawing

Details Process for the production of nonwoven webs including a drawing Process for the production of nonwoven webs including a drawing

1988-05-31

1991-03-05

Ball, Michael W.

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

156167, 156181, 156441, 264237, 425 66, 425 722, B29C 4714, B29C 4716, D01D 512

Patent

active

049976117

ABSTRACT:
For the production of spunbonded fabrics there is given a process consisting in that monocomponent or bicomponent fibers are spun from multiline longitudinal spinning nozzles mounted in rows on double spinning beams in such a way that the emerging filament rows overlap over the entire production width, that, before depositing, the filament rows are cooled by transverse blowing from one side and by sucking-off on their other side freed from spinning vapors, mechanically and/or aerodynamically stretched and deposited to the web.
The apparatus described comprises double spinning beams with a length of 800 to 8,000 mm which carry multiline longitudinal spinning nozzles staggered to one another with high hole numbers, with lengths of the individual nozzles from 500 to 700 mm.

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