Patent ID: 8585958
Filing Date: 2013-11-19
Classification: B26F,B29C,B29D,B30B,B31F,B44C

Abstract:
1. A process for making an embossed film web, comprising: feeding a precursor film web between a static gas pressure plenum and a forming structure comprising a plurality of discrete apertures, discrete depressions, or combinations thereof, the apertures or depressions having a depth of at least substantially equal to a thickness of the precursor web, and wherein the static gas pressure plenum creates static pressure conditions; applying static pressure from the static gas pressure plenum against the precursor web opposite the forming structure creating a pressure differential across the precursor web sufficient to force the precursor web into the apertures or depressions of the forming structure, thereby forming the embossed web comprising a plurality of discrete extended elements having open proximal ends; and applying pressure from a second pressure source against the precursor web sufficient to force portions of the precursor web into void volumes defined by the apertures or depressions, wherein the pressure from the second pressure source is applied sequentially before or after the static pressure is applied against the precursor web from the static gas pressure plenum.