| 摘要 |
<p>PURPOSE:To obtain the title deinking agent capable of providing a regeneration pulp having excellent permeability to ink and releasing property, excellent foaming property and aggregating property of ink and high whiteness and reducing residual ink by adding an alkylene oxide to a dimer acid, etc., of higher unsaturated fatty acid. CONSTITUTION:The objecting deinking agent obtained by adding one or more 2-4C alkylene oxides (e.g. ethylene oxide, propylene oxide or butylene oxide) to at least one kind of dimer acid and polymer acid of 16-20C higher unsaturated fatty acid (e.g. oleic acid or linolic acid) at an amount of <=300mol, preferably 10-200mol.</p> |
