| 摘要 |
Disclosed herein are irreversible thermochromic ink compositions including a solvent and a sublimable dye dissolved in the solvent. The solvent and the sublimable dye can be, optionally, encapsulated. Written marks made with the thermochromic ink compositions can be subjected to a force directing component and/or a heat source, to promote sublimation of the sublimable dye, thereby causing the written mark to change color or become substantially colorless.
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