Nowadays a new packaging technology is popular in the market, which can make the color change within a specific temperature range. It can effectively help people to understand the product usage..
Many packaging labels are printed with temperature sensitive inks. Temperature sensitive ink is a special type of ink, which has two types: low temperature induced change and high temperature induced change. The temperature sensitive ink begins to change from hiding to revealing in a temperature range. For example, beer temperature-sensitive ink is low temperature induced change, the range is 14-7 degrees. To be specific, the pattern starts to appear at 14 degrees, and the pattern shows clearly at 7 degrees. It means, under this temperature range, the beer is cold, the best taste for drinking. At the same time, the anti-counterfeiting label marked on the aluminum foil cap is effective. The temperature-sensitive ink can be applied to many printing, like gravure and flexo spot color printing, and thick printing ink layer.
The packaging printed with temperature sensitive ink products indicate color change between high temperature environment and low temperature environment, which mostly can used in body temperature sensitive products.
The basic colors of temperature-sensitive ink are: bright red, rose red, peach red, vermilion, orange red, royal blue, dark blue, sea blue, grass green, dark green, medium green, malachite green, golden yellow, black. The basic temperature range of change: -5℃, 0 ℃, 5℃, 10℃, 16℃, 21℃, 31℃, 33℃, 38℃, 43℃, 45℃, 50℃, 65℃, 70℃, 78℃. Temperature sensitive ink can repeatedly change color with the high and low temperature. ( Take red color as example, it shows clear color when temperature higher than 31°C, it 31°C, and it shows red when temperature lower than 31°C).
According to the features of this temperature sensitive ink, it can not only be used for anti-counterfeiting design, but also widely used in the field of food packaging. Especially baby feeding bags. It is easy to feels the temperature when heating breast milk, and when the liquid reaches 38°C, a pattern printed with temperature-sensitive ink will give a warning. The temperature of feeding milk to babies should be controlled at around 38-40 degrees. But it is difficult to measure with a thermometer in daily life. A temperature sensor milk storage bag has the temperature-sensing function, and the temperature of breast milk is scientifically controlled. These temperature sensor milk storage bags are greatly convenient for mothers.
Post time: Jul-23-2022
