Patent ID: 7070678
Filing Date: 2006-07-04
Classification: D21F,Y10T

Abstract:
1. A process for producing a paper web comprising: forming an aqueous suspension of fibers comprising pulp fibers; directing said aqueous suspension between a first forming surface and a second forming surface, said first and second forming surfaces being configured to allow fluids to drain from said aqueous suspension, said first forming surface located on a first drainage roll, said first drainage roll being surrounded by a first drainage roll sleeve, said first drainage roll sleeve being located between said first drainage roll and said first forming surface, said first drainage roll sleeve having a first predetermined pattern of lower permeability sections; and forming a paper web between said first and second forming surfaces from said aqueous suspension of fibers, said paper web defining first areas having a first basis weight and second areas having a second basis weight, said first basis weight being greater than said second basis weight, said second areas forming on said first forming surface where said lower permeability sections are located on said drainage roll sleeve, said first and second areas defining a first pattern of fiber distribution gradients.