Patent ID: 6270624
Filing Date: 2001-08-07
Classification: D21F

Abstract:
Stock feed system in combination with a multi-layer headbox having at least two inlet headers into each of which a respective stock flow is passed and which extend in a direction transverse to a flow direction of the respective stock flow, comprisinga single fresh stock storage tank,a branching member,first passage means for continuously passing a single flow of fresh stock from said single storage tank to said branching member where said single flow of fresh stock is divided into a plurality of divided stock flows without storing said single flow of fresh stock between said single fresh stock tank and said branching member,second passage means for continuously passing each of said plurality of divided stock flows from said branching member into a respective one of said at least two inlet headers in said headbox without storing said divided stock flows between said branching member and said respective inlet header, andmeans for independently adding chemicals and/or fillers to each of said plurality of divided stock flows during the flow of said plurality of divided stock flows after said branching member and before said plurality of divided stock flows enter into said headbox such that stock in each inlet header has an independently controllable chemical and/or filler characteristic.