Food Printing Ink For French Fry Boxes: Black Technology That Can Even Be Eaten In Packaging

In the field of food packaging, traditional inks pose a risk of contaminating food due to the presence of harmful substances such as benzene and lead. And an innovative technology called "edible ink" is quietly changing this situation. This ink is based on a water-based system and uses natural ingredients such as food grade pigments, glycerin, propylene glycol, etc. It meets food hygiene standards and can be directly used for printing on food packaging and even food surfaces.

The core advantages of edible ink lie in its safety and environmental friendliness. Unlike ordinary ink, it does not contain volatile organic compounds (VOCs), and the components in the ink will not migrate to food after printing, completely avoiding the risk of residual benzene solvents or heavy metal pollution. For example, Japan's Toyo Ink Company and the United States' Spectra Company have launched commercial products for surface printing of food such as Pinker potato chips, which not only have bright colors but can also be directly consumed with food.

At the technical level, the development of edible ink needs to overcome challenges such as color stability and adhesion. Although natural pigments are safe, they are easily affected by acidity, alkalinity, and temperature to change color, while synthetic pigments are stable but require strict dosage restrictions. To this end, researchers optimize the formula and use liquid sugar, water colloids, and other connecting materials to ensure that the ink can maintain its performance in both refrigerated and room temperature environments. In addition, the introduction of inkjet printing technology enables ink to accurately adhere to the surface of the French fry box, forming clear patterns.

At present, edible ink has gradually been applied in fields such as biscuits, candies, and pharmaceutical packaging. Although domestic technology is still in its infancy and has high costs, with the increasing demand for environmental protection and consumers' emphasis on food safety, this "black technology" is expected to become the mainstream trend in the future packaging industry. Imagine tearing open a French fry box and being able to confidently enter even the packaging pattern. This is not only a technological breakthrough, but also the ultimate pursuit of a healthy lifestyle.

Zhejiang Dongou Printing Industry Co.,Ltd, the expert in French fried box production