| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a method for producing waste paper pulp, which is preferable when waste paper as a raw material contains back-paste such as hot melt and compact disk. <P>SOLUTION: The method for producing the waste paper pulp comprises a disintegrating step for disintegrating non-sorted waste paper to provide fiber suspension, a step for removing a contaminant from the suspension passed through the disintegrating step, a flotation step for removing ink/contaminant from the suspension passed through a roughing step by flotation and a classifying step for classifying the suspension passed through the flotation step into short fiber and filament in≥10% classifying ratio by a classifying apparatus equipped with a screen having≤0.12 mm slit width. <P>COPYRIGHT: (C)2004,JPO</p> |
