We obtain the polypropylene polymer, used in the flexible packaging, through a simple extrusion process, thus forming two big macro categories of products: the cast polypropylene and the bi-oriented polypropylene. The cast polypropylene has a peculiar production that makes the final product typically bright and transparent.
One of the characteristics of the cast polypropylene is the good barrier towards the creation of vapours; so it’s one of the best products for food packaging, often replacing the low-density polyethylene. Moreover, the transparency of this polymer does not alter, so it is highly appreciated by both the food and clothing industries. A lot of companies choose it for the production of gift wrappings.
Often the cast polypropylene is a valid alternative to PVC, as it not only is cheaper in production but it is also easier to recycle.