Non-round spinneret plate hole

Details Non-round spinneret plate hole Non-round spinneret plate hole

2003-11-11

2009-12-29

Del Sole, Joseph S. (Department: 1791)

Plastic article or earthenware shaping or treating: apparatus

Means feeding fluent stock from plural sources to common...

Extrusion shaping means

C425S378200, C425S379100, C425S38200R, C425S382200, C425S461000

Reexamination Certificate

active

07637730

ABSTRACT:
The present invention concerns a spinneret plate (1) for manufacturing a nonwoven fabric, having multiple non-round holes, which are similar to trilobal or multiarmed holes (3) in particular, for polymer flow outlet to produce filaments, in which identical holes are positioned in rows offset relative to one another. At least a first row (2) has a positional arrangement of the holes that differs from the positional arrangement of a second row (7) of rows through rotation of the holes.

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patent: 2003 138464 (2003-05-01), None
patent: WO 03/016606 (2003-02-01), None

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