Activity induction in papermaking

Paper making and fiber liberation – Apparatus – Running or indefinite length product forming and/or treating...

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Details

162209, 162351, 162356, D21F 120

Patent

active

056814305

ABSTRACT:
The apparatus of the present invention is a papermaking machine with a forming fabric in a looped configuration. The forming fabric carries paper stock through the papermaking process. The forming fabric passes over a liquid-filled cavity which is bounded on its lower surface by a flexible non-permeable membrane. A roll with regular protrusions underneath the membrane is rotated to vertically excite the membrane, the liquid-filled cavity, and, subsequently, the paper stock in order to disperse the paper stock into a random orientation.

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