| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a method for producing reclaimed pulp, keeping, in a process for producing the reclaimed pulp, ink removal efficiency and the residual amount of raw material waste paper ash in the obtained reclaimed pulp high, that is, keeping the ash yield ratio [(yield ratio)(%)=100%-(rejection ratio)(%)] high. <P>SOLUTION: The method for producing reclaimed pulp, keeping ink removal efficiency and the yield ratio of the waste paper ash in the obtained reclaimed pulp high comprises adding, at least before the floatation step, a surfactant specified by some parameter or a solution of at lest one surfactant. <P>COPYRIGHT: (C)2004,JPO</p> |
