Multilayer lids containing less than 5% of EVOH and sealable onto PET trays addresses the trend of mono material based packaging for an easier recycling
Typical lid structure: Polyester (sealing layer) / Adhesive / EVOH/Adhesive/Polyester
Such lid opens through a burst-peel type mechanism. When the lid opens, delamination occurs at the interface of the sealing layer and the adhesive layer. These lids can be produced on both cast and blown co-extrusion lines.
Orevac® adhesive resin for burst peel lid require both high co-monomer content and maleic anhydride
Grades recommendations:
- Orevac ® 18603 for blown film.
- Lotader® 4513T for cast and extrusion coating.