Patent ID: 6113741
Filing Date: 2000-09-05
Classification: D21F,D21H

Abstract:
A process for the production of paper on a paper machine containing a dilution headbox which comprises(a) introducing one or more retention components into a main aqueous flow containing cellulosic fibres and filler, and feeding the main aqueous flow into the head box,(b) introducing and additive into a diluting aqueous flow and feeding the diluting aqueous flow into the headbox, the additive being selected from non-ionic or anionic organic polymers, and the additive being added in an amount effective to decrease the rate of dewatering over the rate of dewatering in the absence of the additive, and(c) mixing the main aqueous flow with the diluting aqueous flow in the headbox to form a resulting aqueous flow which is ejected onto a wire and dewatered to form a web of paper.