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Vitamin maker counts on electronic filler (sidebar)

Materials makeover

Pw 19640 S Pw 0100 070

Packaging materials are being re-engineered as well at Jamieson. Previously, the firm exclusively used high-density polyethylene or polystyrene bottles. Now polyethylene terephthalate has replaced PS.

“The larger bottles in particular were brittle in polystyrene,” says Cook. With PET, breakage is less of an issue.

Manager of packaging research and control Tom Barr says the PET bottles also provide better barrier against oxygen and moisture, both of which can diminish the potency of Jamieson’s products. However, Barr declines to quantify the barrier improvement.

Barr says the PET containers are less expensive than the PS containers they replace. Part of the savings, he readily admits, is a function of geography: The PS bottles were sourced in the U.S., where the Canadian dollar is weak. The injection/stretch blow-molded PET bottles, on the other hand, are from the Toronto plant of Silgan (Chesterfield, MO), so the unfavorable currency exchange rate doesn’t enter the picture.

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