Ink Migration Barrier and Direct Food Contact Heat Sealing Lacquer Design for Aluminum / Pet Blister Structure

Abstract

The packaging industry as a pioneer in waste production is looking for environmentally friendly and green solutions in these days. These factors are driving the development of packaging and forcing the industry to invest in research and development to make flexible packaging more sustainable than the existing packaging options. In this review, the factors of main ingredient’s selection on migration barrier properties have been investigated within the new designed heat-sealing lacquer. The new heat-sealing lacquer design has been carried out, which will ensure thermal sealing in Aluminum/Pet Blister Packaging structure, suitable for direct contact food, and at the same time prevent the migration of printed ink to the secondary packaging layer, Pet film side. Because of laboratory tests, the effects and results of heat-sealing lacquer formulations have been assessed and prevented the negative ink migration tendencies in existing heat-seal lacquers for blister packaging structure. That would be possible to use the obtained PET film by recycling processes as a green solution to flexible packaging sector. In this way, Pet films can be separated and used in recycling processes when blister packaging printed with new designed heat-sealing lacquer