Patent ID: 7138037
Filing Date: 2006-11-21
Classification: B32B,D21F,Y10S,Y10T

Abstract:
1. A press felt for use in the press section of a papermaking machine, the press felt comprising: a base fabric layer comprising interwoven yarns that extend generally in a cross direction (CD) and a machine direction (MD), wherein at least a portion of at least one of the MD and CD yarns comprise a regenerated cellulosic material; and a layer of a staple fiber batt material connected to the base fabric layer, the staple fiber batt material is comprised of between 20% to 80% by weight of a regenerated cellulosic staple fiber having a dtex from at least about 1.1 to about 44, and from 80% to 20% by weight of a polymeric staple fiber, the press felt having a paper side surface (PS) which when in operation is in contact with a paper web conveyed thereon and a machine side surface (MS) which contacts various press section components.