发明名称 |
PROCESS AND COMPOSITIONS FOR REPULPING PAPER |
摘要 |
The present invention relates to a process and composition for the recovery of fibre from waste paper and paper broke which has been treated with wet-strength resins. Specifically the present invention is directed to the removal of such resins from the fibre material, so that such fibre material may be recycled to a paper web forming process, by using selected persulfates such as potassium persulfate. Optionally, the persulfate is used in combination with a surfactant. Improved repulping of the waste paper is achieved.
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申请公布号 |
US2001007277(A1) |
申请公布日期 |
2001.07.12 |
申请号 |
US19990412625 |
申请日期 |
1999.10.04 |
申请人 |
JOBLING PETER GORDON;POIRIER MARC RAYMOND |
发明人 |
JOBLING PETER GORDON;POIRIER MARC RAYMOND |
分类号 |
D21C5/02;(IPC1-7):D21B1/08;D21B1/32;D21C3/20 |
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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