Temperature change ink characteristics and influencing factors

When the temperature change ink printed packaging product changes at a certain temperature, its color also changes, not only has the decorative effect of ordinary color ink, and its wonderful changes give people magic-like fun, and its regular repeated changes. Can represent the temperature of the environment, but also has anti-counterfeiting features carrying confidential information. Although the price of the temperature change ink is much higher than that of the ordinary color ink, because the actual area of ​​the printed mark is very small, in order to increase the need to protect the name brand products from counterfeiting and counterfeiting, the number of temperature change inks on the market is still increasing. In order to better play the application function of the temperature change ink, this article gives a brief discussion on the ink composition and influencing factors produced by the reversible temperature change pigment for the reader's reference.

The temperature change ink consists of four parts, including a temperature-varying pigment that provides color, a film-forming resin binder, and a solvent and additive additive. To make good use of it, we must understand the factors that affect the effect of temperature change ink printing from the beginning to the end. We have a unified and coordinated control of the temperature change ink from the composition to the production process and printing methods. It is necessary to realize that the reversible temperature-change pigment is the decisive factor of the temperature change function, which is related to the stability of the temperature change ink, the level of the discoloration temperature, the speed of the discoloration, and the degree of sensitivity (the size of the temperature difference interval during discoloration, and whether the discoloration effect is significant ), which recognizes the crucial importance of choosing a pigment.