发明名称 |
Integrated pulping process of waste paper yielding tissue-grade paper fibers |
摘要 |
This invention provides an integrated system for recovering fibers from mixed grades of waste paper and simultaneously cleaning (deinking) waste fibers. The system comprises a mild alkaline pulping process with oxygen and hydrogen peroxide followed by rapid decompression of fibers and then by hot washing.
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申请公布号 |
US5755926(A) |
申请公布日期 |
1998.05.26 |
申请号 |
US19970795462 |
申请日期 |
1997.02.04 |
申请人 |
KIMBERLY-CLARK WORLDWIDE, INC. |
发明人 |
HANKINS, CHARLES W.;PROCHAZKA, OLDRICH C.;SCHMITT, JOHN F. |
分类号 |
D21C5/02;D21C9/10;D21C9/147;D21C9/16;(IPC1-7):D21C5/02 |
主分类号 |
D21C5/02 |
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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