Patent ID: 9303340
Filing Date: 2016-04-05
CPC Classification: D04H,D06C,Y10T

Claim Text:
1. A process for creating a variable density, high loft, non-woven web structure, the process comprising the steps of: (a.) establishing a non-uniform vacuum across the surface of a condenser screen in parallel banded regions to produce at least a first area having greater airflow than a second area; and (b.) condensing fiber onto said condenser screen in a non-uniform variable density arrangement across the surface of said condenser screen; wherein fiber is directed more heavily to the first area of the condenser screen having greater airflow, and fiber is directed less heavily to the second area of the condenser screen having lesser airflow; thereby, resulting in a high loft, non-woven web structure having density variations corresponding to the areas along the surface of said condenser screen having greater and lesser airflow.