The need to carry liquids is as old as mankind. In the beginning, skins and shells were used. These were followed by ceramics and glass and, more recently, metals. In the 20th century, two new materials emerged: paperboard and plastics. At first, the idea of carrying liquids in a form of paper seemed unconvincing, yet it has proved highly efficient and, because it is made largely from a renewable resource, meets the ecological challenges of the 21st century better than any of its competitors. To…

Fig. 1—Some of the paper beverage cartons available today. The Tetra Classic carton is shown at the left; the Tetra Top cartons with injection molded polyethylene tops made in the filling machine are shown on the right; and the Tetra Fino Aseptic paper pouch is shown in the foreground.

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  1. Food Processing & Packaging