Patent ID: 6676807
Filing Date: 2004-01-13
Classification: D21F,D21G

Abstract:
A system for reducing the caliper of a paper web comprising:a first moving conveyor; a second moving conveyor, said second moving conveyor overlapping said first moving conveyor along a predetermined distance, said first and second moving conveyors being configured to receive a base web in between said conveyors; a first support roll and a second support roll located within said predetermined distance, said first and second moving conveyors being at least partially wrapped around said support rolls; and a shear inducing roll positioned in between said first support roll and said second support roll, said shear inducing roll contacting said first support roll and said second support roll thereby forming a first nip and a second nip respectively, said first and second moving conveyors being guided around said first support roll, through said first nip, around said shear inducing roll and through said second nip, said first and second nips having nip pressures sufficient to reduce the caliper of a base web positioned in between said moving conveyors.