Introduction to the modulation method of temperature change ink

Thermochromic ink

Different from conventional inks, temperature-changeable inks have the function of changing color and are a kind of functional anti-counterfeiting inks. Thermochromic ink is also called thermochromic ink. Temperature sensitive ink is a kind of special ink that can change color with temperature change. Can temperature change ink be prepared by yourself? In order to reduce costs, enterprises want to use temperature-changing raw materials to prepare temperature-changing ink, but they are worried that the adjustment is not good, or that the temperature-changing ink that is adjusted is not easy to use, or even does not change color. Why?

color changing ink

The ingredients required for the preparation of temperature-changing ink are: temperature-sensitive color-changing powder, resin (connecting material), diluent and other auxiliary materials. Among them, temperature sensitive powder, resin and diluent are the most important additives. We need to choose the temperature change powder with suitable temperature and discoloration effect, put the temperature change powder in the container according to the proportion of 10-35%, and then pour the diluent. manufacturer for montanic waxes in china The choice of diluent is very important. Because the resistance of temperature-changeable materials to different diluents varies, soaking in some diluents for 6 months will not affect their discoloration properties, while others can erode the microcapsules within hours or even weeks. The surface layer penetrates into its interior, so that the discoloration property of the temperature-changeable material disappears, and finally the temperature-changeable ink that is adjusted does not change color. In general, avoid high-grade solvents such as methanol, ether, acetone, butanone mixed to avoid osmotic effects affecting the composition of the microcapsules. We choose a solvent with more than 6 carbon atoms as the most suitable diluent. Such as cyclohexanone, boiled oil and water, benzene solvents. After pouring the thinner, wet the warm discoloration powder with the thinner and stir properly. Finally, pour in the resin (connecting material) and other additives that need to be added, and stir evenly.

In order to achieve the best discoloration effect of temperature-changing ink, we recommend using a three-roll mill to disperse the temperature-changing ink. In this way, the temperature-changing microcapsule particles in the ink are protected, and a good dispersion effect is achieved.