7. Flexible packaging for foods can be enhanced with two new co-polyamides from leading chemical and plastics company BASF.
• The partially bio-based Ultramid Flex F38L co-polyamide for vacuum skin packaging is immediately soft (without conditioning) and extremely clear, with high melt stability for blown film leading to bubble stability and increased blow-up ratio (BUR). With a unique oxygen and carbon dioxide (CO2) transmission ratio compared to other polyamides, this film enhancer is especially suitable for modified atmosphere packs and cheese-ripening bags.
• Also significantly softer and clearer than other co-polyamides, the new Ultramid C37LC helps shrink films achieve higher hot water and hot air shrinkage. According to the company, reducing a product’s crystallization temperature and melting point significantly cuts the curling of asymmetric films with polyethylene (PE) or polypropylene (PP).
BASF, Hall 10, Booth 43