| abstract |
A refining element for a pulp stock refiner having at least its working edges composed of a relatively soft (e.g. nylon), less stiff material, as compared to ferrous metals, whereby fibers of pulp refined in a refiner having such elements are fibrillated and made flexible and have less tendency to be cut into shorter lengths, as compared to pulp fiber refined with ferrous metal elements, as the stock is processed through the refiner. |