| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide printing ink for plastic labels that contains titanium oxide in high concentration, has high white density, is excellent in printability and storage stability, and also is excellent in adhesion to a substrate (especially a polyester-based film). <P>SOLUTION: The printing ink for plastic labels is printing ink containing a urethane acrylic resin (A) having a structural unit derived from polyester polyol, an acrylic resin (B), and titanium oxide (C), wherein a content of a structural unit derived from a monomer having a (meth)acryloyl group in the urethane acrylic resin (A) is 1-40 wt.%, an acid value of the acrylic resin (B) is 1-40 mgKOH/g, a weight ratio in a nonvolatile component of the printing ink, [(a content of the acrylic resin (B)):(a content of the urethane acrylic resin (A))], is 50:50 to 99:1, and a content of the titanium oxide (C) in the nonvolatile component of the printing ink is 70-81 wt.%. <P>COPYRIGHT: (C)2012,JPO&INPIT |
