| 摘要 |
<p>PURPOSE: To obtain a deinking agent giving deinked pulp having high whiteness and a slight residual ink from old news papers, magazines and old papers for OA. CONSTITUTION: This deinking agent is composed of following components (A) and (B). The component (A); an 8-24C fatty acid or its alkali metal salt, organic amine salt or ammonium salt. The component (B); a polyoxyalkylene compound expressed by the formula: HO (EO)m (PO)p (EO)n }H (EO is oxyethylene group, PO is oxypropylene group, (m) and (n) are each an average adding molar number of oxyethylene group, (p) is an average molar number of oxypropylene group, (m+n)=0-100, (p):10-100 and ((m+n)/(p)):0.1-1).</p> |
