| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a deinking agent capable of enhancing ink collection power in a floatation process and capable of obtaining deinked pulp of high quality without decreasing a yield of the pulp. <P>SOLUTION: This deinking agent contains an ester of an addition product of an alkylene oxide to a trivatent to decavalent alcohol, such as glycerine, wherein a hydroxy value (OHV), a suponification value (SV), and an acid value (AV) of the agent satisfy that a value of OHV/(SV-AV+OHV) is in a range of 0 to 0.3. <P>COPYRIGHT: (C)2004,JPO</p> |
