| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a solvent recovery/reuse type printing ink composition which comprises a polyurethane resin having a weight-average molecular weight of 20,000 to 100,000 and an amine value of 0.5 to 20.0 mgKOH/g and a volatile component in which 90% or more of the volatile component consist of two types, an ester solvent and an alcoholic solvent. <P>SOLUTION: The solvent recovery/reuse type printing ink comprises a mixed solvent comprising two organic solvent components, wherein the mixed solvent has a specific weight-average molecular weight and an amine value. The solvent recovery/reuse type printing ink has excellent printability and is reusable by easy component adjustment of a recovered solvent as compared with a conventional ink. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
