Thermochromism Thermochromism Hypercolor was a brand of clothing, mainly T-shirts and shorts, that changed color with heat. They were manufactured by Generra (now a division of Public Clothing Company) and marketed in the United States as Generra Hypercolor or Generra Hypergrafix and outside the US as Global Hypercolor. They contained a thermochromic ( temperature sensitive) pigment made by Matsui Shikiso Chemical of Japan, that changed between two colors–one when cold, one when warm. The shirts were produced with several color change choices from the late 1980s until the early 1990s, and were predominantly tie-dye in pattern. Unfortunately the effect could easily be permanently damaged, particularly when the clothing was placed in a hotter than recommended wash. ...more on Wikipedia about "Hypercolor"
A mood ring is a novelty ring which changes color in response to body temperature, using a thermochromic liquid crystal. A form of biofeedback, they supposedly indicated the temperament of the wearer, indicated by the ring's color. Mood rings were a fad whose popularity peaked in the United States in the 1970s, and they are now seen as an icon of 1970s culture. ...more on Wikipedia about "Mood ring"
A thermal printer (or direct thermal printer) produces a printed image by selectively heating coated thermochromic paper when the paper passes over the thermal print head. The coating turns black in the areas where it is heated, producing an image. Two-color direct thermal printers are capable of printing both black and an additional color (often red), by applying heat at two different temperatures. ...more on Wikipedia about "Thermal printer"
Thermochromism is the ability of a substance to change colour due to a change in temperature. A mood ring is an excellent example of this, but it has many other uses. Thermochromism is one of several types of chromism. ...more on Wikipedia about "Thermochromism"
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