Packaging nets, which are usually produced on a petrochemical basis and are not bio-degradable, can be made more sustainable by using bio-degradable films, which are produced on the basis of renewable raw materials. The production of packaging nets is a continuous process, which consists of 2 machine parts, the film cutting stretch unit and the circular warp knitting machine. The machines can also be used for processing bio-film. However, the machine parameters, such as transmission ratio, temperature and binding cannot simply be transferred from conventional film. The adjustments of the process parameters are carried out in the work package “Development and manufacturing technology of degradable film tape packaging” at Hochschule Niederrhein - University of Applied Sciences, Mönchengladbach/Germany. In this way, a highly efficient, energy-saving process is to be developed for producing biodegradable packaging film nets. The cooperative project with machine manufacturer Harry Lucas GmbH & Co. KG, Neumünster/Germany, will continue until end of September 2021.
Fig.: Packaging nets process (Source: HS Niederrhein)