| 摘要 |
<p>PROBLEM TO BE SOLVED: To obtain a retroreflective ink composition which is hard to cause the settling of retroreflective particles and is suited in use for colors, or the like. SOLUTION: This retroreflective ink composition comprises at least retroreflective particles, e.g. composed of glass beads and mica and/or colored aluminum particles and a binding resin, and has an increased viscosity of, e.g. 100,000 to 3,000,000 cP so as not to allow the above retroreflective particles to settle and can be diluted with a solvent.</p> |
