Application and difficulties of multi-layer co-extrusion blow molding in food packaging

The traditional canned food packaging and jam packaging are mostly tinplate cans and glass bottles; because the tinplate cans are easily deformed during transportation and the glass bottles are easily broken and heavy, the developed countries such as Europe, America and Japan a decade ago. Tinplate cans and glass cans have been gradually replaced by five-layer co-extrusion blow-molded hollow bottles.