Netstal targets dairy in Brazil with overmolded PET tech

05/12/2011

Netstal is aiming to chip away at the dominance of coated-paper cartons in the Brazilian dairy market, with plans to install its two-layer polyethylene terephthalate (PET) preform technology in the South American country by the end of the year. Italo Zavaglia, who works for Netstal in Brazil, noted that a PET-based system for milk would be more recyclable, and while there is a higher initial investment for its preform technology, there are not the down-the-line royalties paid when utilizing some other systems. Zavaglia showed off the technology at Brasilplast, where Netstal maintained its own booth, although that will be different at the next event in two years.

There are some blowmolded plastic bottles for dairy currently on the market in Brazil, according to Zavaglia, but they utilize a label across the entire container to protect the milk from UV light exposure. Netstal's system first injects an opaque, black core, which is then overmolded with a white PET, creating a fully UV-protected container that doesn't require a complete sleeve.
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