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Thermochromic Ink
Thermochromic ink is ink that is designed to change color with the change of temperature.
The printed image will vanish as the temperature increases above the response temperature
of the thermochromic ink. When the temperature lowers below the response temperature
the image will revert back to its original color. Thermochromic ink has various applications including high quality promotional items,
advertising, labels, packaging, security documents, textiles, toys, novelties, and
anti-counterfeiting for such items as event tickets, lottery tickets. Thermochromic
ink can also be used for safety as temperature indicators and warnings for such
items as hot drinks and food. Thermochromic ink contains microencapsulated thermochromic pigment that changes
from color to colorless as the temperature rises, when the temperature decreased
the pigment returns to normal. In aqueous conditions, the pigment is encapsulated,
resulting in a slurry mixture, resembling that of plaster-of-paris. The microcapsule wall of the pigment can endure most standard mixing and application
procedures. However, if too much force is used during the mixing or application
procedure, the microcapsule will be crushed, and the ability of the ink to change
color will be destroyed.
Small business guides: , Thermal Transfer Labels Guide.com |
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