Interval thermochromic inks for printing
![](https://splinx.pl/wp-content/uploads/2021/03/shutterstock_1759740593-730x350.jpg)
![](https://splinx.pl/wp-content/uploads/2021/03/shutterstock_1759740593-730x350.jpg)
Interval thermochromic inks are inks which retain their colours in a set range of temperatures (e.g. 30° C – 50°C) and discolour when the temperature goes above or below that range.
![](http://splinx.pl/wp-content/uploads/2021/03/shutterstock_1137399008-1024x768.jpg)
The change of colours of interval thermochromic inks is reversible, which means that they can be coloured and discoloured multiple times by maintaining or going beyond a specific temperature interval.
The change in a colouring-discoloration cycle takes place in a range of several degrees, similarly to other reversible thermichromic inks.
Interval thermochromic inks can be used as indicators of maintaining temperature of the product at a certain range.
If the temperature goes below this range, the ink will discolour and the same will happen when the temperature exceeds that range.
![](http://splinx.pl/wp-content/uploads/2021/04/thermochromic-ink-field-notes-1.jpg)
![](http://splinx.pl/wp-content/uploads/2021/04/thermochromic-ink-field-notes-1.jpg)
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