发明名称 |
ENZYMATIC FREENESS ENHANCEMENT |
摘要 |
<p>A method for enhancing the freeness of pulp made from secondary fiber is provided by adding an enzymatic mixture comprised of cellulase and pectinase enzymes to the pulp and treating under conditions to cause a reaction to produce an enzymatically treated pulp. The freeness of the enzymatically treated pulp is increased from the initial freeness of the secondary fiber pulp without a loss in brightness.</p> |
申请公布号 |
WO9806892(A1) |
申请公布日期 |
1998.02.19 |
申请号 |
WO1997US14324 |
申请日期 |
1997.08.14 |
申请人 |
INTERNATIONAL PAPER COMPANY |
发明人 |
OLSEN, WILLIAM, A.;ZHU, HUI;HUBBE, MARTIN, A. |
分类号 |
D21C5/00;D21C5/02;D21C9/00;(IPC1-7):D21B1/08;D21F11/00 |
主分类号 |
D21C5/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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