PET Wine Bottles Making Big Splash in the Marketplace
As consumers embrace greener packaging options, the use of plastic wine bottles is starting to spread. Amcor, which has begun supplying 1L bottles to Societe de Vin Internationale LTEE, a Canadian supplier of alcoholic beverages, already makes wine bottles blowmolded of polyethylene terephthalate (PET) in smaller sizes of 187 ml and 750 ml, but their new 1L flacon is a recent development.
The wine bottles’ gas barrier is applied using the Plasmax plasma coating developed years ago by then-SIG Corpoplast. The equipment uses vapor deposition to apply a silicon-oxide layer to PET bottles for the purposes of creating a barrier to oxygen ingress or, for carbonated beverages, CO2 egress. The coating is less than 100-nm thick, transparent and resists cracking, abrasion, and delamination. The barrier coating is removed during the recycling process and supposedly will not contaminate the recycling stream.
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