Temperature change ink color nature

Temperature change ink is an ink color as the temperature changes due to changes in temperature change ink .
The first, reversible glow in the dark film ink: original color after the temperature rises into other colors , then drop back to the color temperature also will be changed back .
Depending on the color temperature requirements there are several varieties of frozen food :7 -13 degrees Celsius temperature change ink ,26 -31 degrees Celsius temperature change ink feel ,46 -51 ,38 -43 ,60 -65 degrees Celsius temperature change ink .
Color color is divided into the following three products : photoluminescent technology, black - red, red - yellow.
Second, the reversible thermosensitive achromatic ink: ink temperature change in the original color will disappear when the temperature rises , the temperature returns after the color also will reply.