| 摘要 |
A process for improving the freeness of paper pulp, which comprises the ste ps of adding to the pulp at least 0.05%, based on the dry weight of the pulp, o f a cellulolytic enzyme, allowing the pulp to contact the cellulolytic enzyme fo r from about 40 minutes to about 60 minutes at a temperature of at least 40.degree. C, adding at least 0.011%, based on the dry weight of the pulp, of a water soluble cation ic polymer, adding at least 0.007%, based on the dry weight of the pulp, of a water soluble anionic or nonionic polymer and forming the thus treated pulp into paper.
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