Thermochromic pigment as a smart indicator on cold/hot product packaging

Thermochromic pigment is a type of pigment that changes color in response to a change in temperature.

The application of thermochromic pigment in intelligent packaging is mainly reflected in the functions of temperature perception, anti-counterfeiting verification, cold chain monitoring and interactive experience through color change. The following are the specific application directions and examples:

Temperature indication and consumer experience optimization Beverage Drinking Temperature Prompt:

1. Thermochromic pigment can be used for beverage packaging (such as red wine labels) to visually display the "optimal drinking temperature" through color changes, such as colorless at room temperature, and blue after refrigeration to help consumers judge the state of the drink.

2. Enhanced Visual Interaction

Some packaging designs take advantage of the cold-activated properties of thermochromic pigment, such as changing color after touching to add interest. For example, the label of an iced beverage bottle develops color when it is cold, conveying a cooling sensation.

Security and anti-counterfeiting and quality assurance:

1. Instant anti-counterfeiting verification

Thermochromic pigment triggers the visible and hidden changes of hidden patterns or verification codes through hand temperature, such as anti-counterfeiting marks on bills and high-end commodity packaging. For example, after touching the body temperature, specific marks appear, which increases the difficulty of imitation.

2. Cold chain transportation monitoring applies intelligent thawing sensing technology to reflect the thawing status of food in real time. For example, if the temperature exceeds the safe range, the snowflake symbol on the frozen food packaging will disappear and warn that it is not edible to ensure safe transportation.