Are there any alternatives to advanced multilayer blown film lines?

While there is a lot of technical merit to 7/9/11-layer blown film lines,
the market will have to sort out the utility of this new technology.
Until then,there is a very large installed base of 3- and 5-layer blown
film lines,dozens or more oriented film machines,vacuum metallizers,
adhesive laminators and extrusion laminators that,when taken together,
can produce any combination of bulk layers,barrier layers,adhesives and
sealants to satisfy any need without any further capital expenditure.
And while not as Green or environmentally perhaps as a single-step blown
film operation,cost is quite often a driving factor in design or market category.