CumaPET L04 100 for improved recyclability and sealability
The most commonly used packaging in the meat industry consists of different polymers combined in a multilayer structure, for example PET and PE. For this reason, when this packaging becomes waste, it is deposited in landfills or incinerated because it is not recyclable. European strategy on Plastics requires all plastic packaging in the European market to be fully recyclable by 2030, which makes design for recycling necessary.
PE top layer
For fresh meat and other perishable goods the shelf-life can be increased tremendously by applying a modified atmosphere during packaging. Besides the barrier property of the tray material itself, the performance of the seal between the tray and the lid is extremely important. Especially during packaging of fresh meat, some leakage of juices on the edges of the tray is unavoidable. Due to the composition of meat juice, a combination of high pressure, heat and time needs to be applied to obtain a gas tight seal. Under these circumstances, the physical structure of normal APET will change (crystallization), resulting in a bad quality seal. To obtain a gas tight seal, many producers apply a PE coextrusion layer to their APET tray. The big disadvantage of a PE top layer is that it makes recycling of production- and post-consumer waste much more challenging.