Thermochromic ink changes color with temperature, usually from black (room temp) to clear (when heated) and back to black again when it cools down.
My favorite coffe mug showed the Star Trek transporters with Captain Kirk, Spock and Mr. Scott. When I poured in hot coffee, the three adventurers disappeared, or they were transported, one of the two.
Unfortunately, the thermochromic property tends to wear off in time and the ink becomes less responsive to the heat. So, as a product, it's not long-lasting. As a marketing gimick, it's pretty cool.
What about Bob?
- Bob Tetu
- I'm an engineer with a background in six industries - chemical, medical device, printing, semi-conductor, banking IT, and the internet. What a ride! Hobbies include carpentry, cabinet work and gardening. Making props for school plays and after prom is a volunteer past-time. Basically, I love to understand how all things are made and I hope I can connect to others with a similar interest.
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