UNDER FELT INCLINED FLAT FORMER TO PRODUCE MULTILAYER OR MONOLAYER SHEET OF PAPER

摘要

The present invention refers to an under felt inclined flat former for maki ng multilayer or monolayer sheets of paper. The forming unit is supported on corresponding rigid supports and is provided with a roll system on which the forming unit rests when the supports are removed, in such a manner that the selected forming unit can be removed from the production line for cleaning o r maintenance purposes, without interrupting the operation of the former equipment. The paper sheet so formed has superior characteristics to that of a sheet made in a fourdrinier manufacturing table. Unlike prior art equipment, the present invention provides controls for fiber orientation. In addition, the present invention discloses a flow head box with a step diffuser. The step diffuser maintains the fibers in a state of complete dispersion. Thus, the advantages of using a step diffuser in combination with activity induction can eliminate streaks. Further, the present invention provides for an adjustable tensile ratio. T he tensile ratio can be controlled by adjusting the fiber orientation while maintaining even distribution of fiber.