1. Carbon dioxide in modified atmosphere packaging

Different methods can detect the edible state of modified atmosphere packaging: by detecting the concentration of key carbon dioxide gas in the modified atmosphere packaging, the edibility limit of the modified atmosphere packaging can be judged. Therefore, the time temperature label is no longer based on time, and the environmental temperature change is an indicative parameter.

On the air conditioner packaging cover, the smart label is embedded in a layer of film. In an environment with carbon dioxide, the label is yellow, but the color is consistent before opening the package, carbon dioxide is released, and the ambient gas changes. The label officially starts timing and the indicator light Produce the corresponding color change.

2. Eye-catching color change indication

Over time, the label changes color to indicate when to open the package. The mark is a fully automatic timer to monitor the freshness. The label is made of smart plastic, so they can adjust the color according to changes in the carbon dioxide in the packaging.

The label can visually display the packaging time of unsealed food, encourage consumers to eat it in a fresh state, and help reduce risks and unnecessary food waste.