thermochromism

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Related to Thermochromic ink: Thermochromic paint

thermochromism

(ˌθɜːməʊˈkrəʊmɪzəm)
n
(Chemistry) a phenomenon in which certain dyes made from liquid crystals change colour reversibly when their temperature is changed
ˈthermochromy n
ˌthermoˈchromic adj
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
References in periodicals archive ?
The special blue and white bottle uses thermochromic ink to reveal a special message when frozen.
OVERT SEMI-COVERT COVERT Guilloche Laser image DNA taggants Rainbow printing Polarised image Molecular taggants Latent image Security fibres Security fibres Colour-changing ink Reactive inks Magnetic element Tactile patterns Microprint Anti-Stokes inks Hologram UV dull paper Reactive inks Watermark Thermochromic ink Legend colour scheme Features present in Features added in Feature present in both first draft and final version draft, but removed final version from final version
Chromatic Technologies Inc.(CTI), provider of thermochromic ink and other environmentally reactive technology, announced the introduction of Tamper Alert, a new irreversible, heat-activated ink technology to identify tamper evidence in labels and packaging for chemicals, pharmaceuticals, food, electronics and other products targeted for theft and counterfeiting.
The back label incorporates a thermochromic ink, which changes color in response to temperature variation.
Thermochromic ink is temperature sensitive and can change color with exposure to heat.
The company's subsequent search for an irreversible thermochromic ink led them to partner with the University of Rhode Island in what is now trademarked and patented as The Food Sentinel System.
A precise thermochromic ink visibly reacts to all the critical parameters of steam sterilization to demonstrate that the desired exposure to steam in a specific cycle has occurred within the pack, container, pouch or wrapped item that was sterilized.
Thermochromic ink is the Pet Rock ink of the New Millennium.
"With thermochromic ink, a teller can hold a finger on an embedded key for a couple seconds, then take the finger away, and the key will disappear.
A small section of it has been printed with thermochromic ink which sees the cloud change from dark and gloomy to a cheerful sky blue when it is touched.
A special thermochromic ink on the wrapper changes colour when it is cooled below 8C (44F) revealing a snow crystal pattern or eskimo cartoon in the choc bar's famous logo.
The firm recently introduced an inpack tester featuring a bright, easy to read thermochromic ink strip that measures the power level of batteries with readings of "good" and "replace."