In trial and pilot facilities, tesa tests the suitability of these and other materials for many of tesa’s 7,000+ products. Bio-based and recycled materials are promising backing materials.
Alternative mediums such as PLA film (based on natural cornstarch) or from recycled paper and recycled PET film (made from post-consumer plastic waste such as water bottles) are now commercially available and have already been incorporated into various tesa products following extensive test phases.
More complex film made from recycled materials is yet to be developed. “The building blocks we use are often already quite specific and therefore require particular backing materials,” explains Dr. Sebald. Quality is crucial for these, but it is not always possible to find recycled materials that meet the requirements. “We test everything available until we achieve the perfect result.”