发明名称 METHOD OF RECLAIMING TREATMENT OF WASTE METAL-CLAD PAPER
摘要 <P>PROBLEM TO BE SOLVED: To provide a method of reclaiming treatment of a waste metal-clad paper by which paper and metal foil are efficiently separated from the waste paper in which the metal foil is clad on a paper base material, and a pulp having little mixing of impurities and little deterioration of strength or the like can be recovered. Ž<P>SOLUTION: The method of reclaiming treatment of the waste metal-clad paper, for recovering the waste paper pulp from the waste metal-clad paper in which the metal is clad on the paper base material includes a step of subjecting the waste metal-clad paper to dissolution treatment under a relatively higher concentration condition, and a step of subjecting the waste metal-clad paper to dissolution treatment under a relatively lower concentration condition, and continuously carries out these dissolution treatments in the same waste paper-dissolving device. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
申请公布号 JP2010100951(A) 申请公布日期 2010.05.06
申请号 JP20080271769 申请日期 2008.10.22
申请人 DAIO PAPER CORP 发明人 OTSUKA KIYOAKI
分类号 D21B1/34 主分类号 D21B1/34
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