Patent ID: 11891723
Assignee: FITESA SIMPSONVILLE, INC.
Field: Textile and paper machines (Mechanical engineering)
Classification: CPC D  A | IPC A  D

Claim 16:
17. A method for preparing a nonwoven fabric comprising:
providing a first polymer source;
introducing a first polymer from said first polymer source into a spin beam in fluid communication with the first polymer source, the spin beam including a spinneret assembly having a plurality of rows of filament nozzles that are arranged in an array and, a gas distribution plate disposed downstream of the spinneret assembly, the gas distribution plate including a plurality of gas distribution slots that are each associated with one or more of the rows of the filaments nozzles;
extruding a plurality of filaments comprising the first polymer provided by the first polymer source;
surrounding the filament nozzles and the extruded plurality of filaments with a stream of gas that is introduced into the plurality of gas distribution slots;
drawing and attenuating the plurality of filaments extruded by the plurality of filament nozzles; and
depositing the plurality filament nozzles onto a collection surface disposed downstream of the gas distribution plate to form a nonwoven fabric web, and wherein the gas distribution slots comprise a first chamber and a second chamber that are interconnected via a fluid channel, and wherein each chamber includes at least one filament nozzle disposed therein.