[China Packaging News] There are mainly four types of anti-counterfeiting inks used in printing: invisible fluorescent ink anti-counterfeiting, visible fluorescent ink anti-counterfeiting, temperature-varying ink anti-counterfeiting, and spot color anti-counterfeiting. Take a look and see how many you know?

Anti-counterfeiting with invisible fluorescent ink

The material used is invisible fluorescent ink. The printing process is simple. The printed area with this ink has invisible patterns or text. Under ultraviolet light irradiation, it presents a clean and bright pattern. It is convenient to detect and has a wide range of applications. The disadvantage is that because it is invisible, that is, colorless, its registration difficulty is high.

2. Anti-counterfeiting with tangible fluorescent ink

The material used is tangible fluorescent ink. The printing process is simple and the registration is precise. The printing effect is the same as that of ordinary ink. However, under ultraviolet light, the printed matter appears exceptionally bright, which can be distinguished from ordinary ink at this time.

3. Anti-counterfeiting of temperature-varying ink

The material used is temperature-sensitive ink. The methods include changing colored ink to colorless and colorless ink to colored. The range of temperature variation varies from high to low, and it can be classified as reversible or irreversible. This method has a simple printing process and is convenient for detection.

4. Spot color anti-counterfeiting

Spot color anti-counterfeiting is also an indispensable and important anti-counterfeiting technology in flexible packaging anti-counterfeiting technology. As spot colors are specialized colors formulated by ink manufacturers or packaging enterprises with special formulas, they have the characteristic of being difficult to imitate, and their hues are also hard to be imitated. Generally, they cannot be replicated through other means

It is made by blending several types of ink, with a price similar to that of ordinary ink and excellent anti-counterfeiting effect.