| 摘要 |
<p>The present invention relates to a color-changing composition and a multiple- component material including a substrate and a printed layer on the substrate. The printed layer includes a color-changing composition to indicate a change in condition, such as a change in wetness. The color-changing composition includes a matrix-forming component, a leuco dye, a Lewis Acid, a neutral surfactant and an organic solvent.</p> |
