(under subclass 1) Processes directed to controlling the conditions of the digestion or fiber treatment, e.g., temperature, pressure, feed of fibers or treating agent, etc.
(1) Note. Chemical treatment of fibrous material involving the use of a specified pressure or temperature for example is not sufficient by itself to justify classification in this subclass.
SEE OR SEARCH THIS CLASS, SUBCLASS:
49, for digestion processes combined with a sampling or testing or analysis step.
