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Single-Serve Wine Spritzer in Plasma-Coated PET

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19. August 2014

When it comes to barrier containers, the smaller the package volume, the greater the relative surface area and the more challenging it is to achieve barrier protection. A case in point is a new 330-ml PET screw-top bottle for wine spritzers, which must retain carbonation to preserve the “spritz” as well as prevent oxygen ingress that would spoil the wine.

 

That was the challenge facing Amcor Rigid Plastics, Ann Arbor, Mich., in designing the bottle for Andrew Peller Ltd., Grimsby, Ont., a Canadian wine producer and marketer. Its wines are made from grapes grown in Ontario, British Columbia, and around the world. Its new skinnygrape line of ready-to-drink wine coolers are low-calorie drinks aimed largely at women. That factor determined the slender, comfortable shape of the custom PET bottles. Barrier properties are afforded by an ultrathin <100 nm) silicon oxide (SiOx) plasma coating applied to the inside of the bottle, which is clear, resistant to cracking and delamination, and does not degrade over time. This glass coating is applied using technology from KHS Plasmax GmbH in Germany (U.S. office in Waukesha, Wis.).

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