发明名称 |
Preparation of paper pulps from dicotyledonous plants |
摘要 |
Paper pulp is prepared from dicotyledonous plants by stirring said plants in an alkaline solution in the presence of a surfactant and stain inhibiting agent to obtain a stock containing a woody core fraction and a bark fraction containing bast fibers, separating said fractions and then cooking and bleaching the bark fraction in an alkaline solution containing an oxidizing agent and an alkyl sulfate surfactant.
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申请公布号 |
US4106979(A) |
申请公布日期 |
1978.08.15 |
申请号 |
US19770779293 |
申请日期 |
1977.03.21 |
申请人 |
CONSORZIO FABOCART S.P.A. |
发明人 |
RUFFINI, GUGLIELMO;PEZZOTTI, ERIO |
分类号 |
D21B1/00;D21C1/00;D21C3/22;(IPC1-7):D21C3/02;D21C3/20;D21C9/16 |
主分类号 |
D21B1/00 |
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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