Consumer interest in beer bottled in PET has been, yes, pretty flat, but plastics’ use in wine packaging is truly starting to take flight. Proof positive comes out of the blowmolding facilities of Amcor, which has begun supplying 1L bottles to Societe de Vin Internationale LTEE, a Canadian supplier of alcoholic beverages.
Amcor already has commercial sales of wine bottles blowmolded of polyethylene terephthalate (PET) in smaller sizes of 187 ml and 750 ml, but the 1L flacon is a new one for the processor. “This is an important development because it expands the market potential for barrier PET wine containers,” explained Kerry Drewry, sales manager for Amcor Rigid Plastics (Manchester, MN). “We expect continued growth for barrier PET bottles in a range of sizes for wine.”
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 is said not to contaminate the recycling stream....