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How Thermochromic Ink Works

Author's Note

Color isn't just a nice way to change the look of your kitchen. Color affects mood, serves as a powerful visual communicator, alters your physiology and basically plays a tremendous role in human life. Color is dynamic, fun and important.

Color-changing inks, then, are a fascinating study in both chemistry and psychology. If a fancy, candy-red blender can command a premium price, what kind of cash would you be willing to drop on one that changes color depending on whether you're blending hot soup or a frozen smoothie? And how much would you prefer wall paint that changes its hues depending on that day's thermostat setting?

The possibilities for these inks are getting broader by the day. Their future looks bright, and ours looks a lot more colorful.

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