(under subclass 1) Processes combined with a step of applying a mechanical force to the fibrous material, of sufficient magnitude to remove at least a portion of a liquid associated with such material from the cells or surfaces thereof, or to knead or rub the fibrous material.
SEE OR SEARCH THIS CLASS, SUBCLASS:
18, for processes involving compressing, squeezing or compacting of the fibrous material in connection with continuous digestion or continuous charging or discharging of the fibrous material.
20, through 28, for processes which include a defibration or comminution of the fibrous material.
