German research and development successful metal coating biodegradable packaging

New product of metallized polylactic acid (PLA) biodegradable film developed by Germany's Treofan company has significantly reduced fragrance, oxygen, and moisture permeability compared with products without metal film. The metalized PLA membrane Biophan is suitable for packaging foods with high fat content such as butter, dried cheese and various kinds of candies. Its appearance is as bright as a mirror, with high barrier properties required for food packaging. The company is also currently researching and developing products with higher barrier properties, allowing Biophan films to be used for the packaging of fresh foods such as meat and fish.

This metal-plated biodegradable film satisfies the European Union (EU) and US FDA specifications for food contact materials and also passes the relevant certification of the German Industrial Standard (DIN). Treofan expects Biophan and paper composite packaging to have a promising future in the candy market. It can also replace aluminum-containing composite packaging, packaging butter and soft cheese to preserve the original flavor of the food. The film's good hydrophobicity is also very suitable for this. application. The company's test results showed that at 23°C and 50% relative humidity, the material's oxygen transmission rate was only 1/12 that of the unplated PLA film, similar to the metal-coated polypropylene film, and higher than the metal plating. cellophane.