Patent ID: 8551293

Claim:
A paper making process of producing paper having machine direction aligned fibers, said process comprising: operating a forming fabric of a Fourdrinier machine in a rush mode or a drag mode to promote an initial machine direction alignment of paper fibers within a paper web deposited onto the forming fabric; adjusting angles of angle adjustable blades and adjusting heights of height adjustable blades along with vacuum levels on vacuum assisted dewatering units in an initial sheet dewatering zone to produce an early drainage rate so that the paper web has a consistency in the initial sheet dewatering zone within a range of 0.1% to 2% to immediately freeze the machine direction alignment of paper fibers and to produce turbulence so that the paper fibers are kept mobile and entanglement is prevented; and adjusting foil blade angles and heights and vacuum levels after the initial sheet dewatering zone to gradually achieve a consistency of 5%; wherein the foil blades angles and heights are adjusted after the initial sheet dewatering zone to create moderate turbulence levels and prevent disruption of the machine direction fiber orientation achieved in the initial sheet dewatering zone.