Packaging films based on alginate - PTS & Berlin start-up mujō launch development cooperation

This element of the cell walls, which provides structure in the alga, is able to form flexible and at the same time strong films - even without chemical derivatization. It can therefore perform various tasks in paper packaging. Depending on the formulation and material thickness, barrier coatings on paper are just as conceivable as free-standing films that can be used, for example, as viewing windows in cardboard packaging. It is fully SUPD-compliant.

In order to advance the use of this exciting material in the packaging sector, PTS in Heidenau is starting a joint development cooperation with the Berlin-based start-up company mujō. The aim of the work will be to develop packaging products such as films or coated papers with the aid of alginate, a natural polymer obtained from brown algae.

"mujō has set itself the task of developing recyclable packaging materials that can be disposed of in the existing disposal infrastructure and pose no danger to nature or humans even in the event of incorrect disposal. We are initially focusing on water-soluble and water-insoluble transparent alginate films and alginate-coated barrier papers," says mujō co-founder Annekathrin Grüneberg. To make this a reality, PTS is providing its expertise and pilot plant infrastructure as a development partner. In addition to developing formulations and manufacturing the materials using process technology, the work also focuses on issues such as sealability, barrier optimization or recyclability.

"The development of packaging components made of natural polymers complementary to paper meets the spirit of the times" expresses PTS business unit manager Dr. Martin Zahel. "We are therefore proud to be able to support mujō, a young company with an innovative idea, on its way."

PTS is the leading German and transfer-oriented research and development institute in the paper value chain, supporting companies in the development of products and materials.