Pasteurizable PET beer bottle emerges.(S-COSMOS bottles from Toyo Seikan)(Brief Article)

Packaging Digest, December, 1999

A process that yields single-serve polyethylene terephthalate bottles capable of undergoing pasteurization has been unveiled by Toyo Seikan, Japan. The S-COSMOS process makes bottles that are stretched and heat-set completely on the bottom and sidewall, allowing the 500-ml bottles to withstand conditions of 73 degrees C for 40 minutes at 3 gas volumes. A production machine, currently in development, will be rated at 30,000 bottles per hour. Notably, this technique offers bottle weight reductions of up to 20 percent versus conventional heat-set bottles. It improves greatly on the company's COSMOS method developed in 98 for 1.5-L bottles.

Although the technology is ideal for pasteurized beer bottles, PD is told the first application is a juice product, presumably...

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