Industrial Manufacture Technology Calls

PepsiCo posted this Technology Call

We have been working on bio-based/biodegradable flexible films for food packaging to help achieve our sustainability goals of having 100% RCB compliance for our packages as well as 20% reduction in GHG by 2030. While flexible package is a very sustainable option from a material use point of view, the multi-layer multi-material structures are not conducive for recycling and mostly end up in the landfill or as litter. While the biodegradable films help us with the end of life issues by designing for managed waste infrastructures like composting and anaerobic digestion, it cannot be at the expense of performance compromises such as reduced shelf stability. Oxygen barrier is not a problem with these films but achieving the very high moisture barrier required for packaging dry foods (< 0.3 g/m2/day under tropical conditions of 38C/90% RH) has been a challenge. We understand that metallization will be needed to achieve the high moisture barrier requirements, but even with metallization we have not been able to reach this barrier with bio-based films. Also, it is important to maintain this barrier under forming conditions in the VFFS process of bag-making. We are looking for novel resins that can be co-extruded with our core resins to form a skin layer with high functionality that can anchor metal to film or highly functional coatings which would serve the same purpose. Inherently high barrier coatings that can be applied as primer coating or top coating over metal could also be a solution.
Seeking moisture barrier for bio-based films