(Plasticstoday) - Amcor Rigid Plastics seeks to put a cork in its PET wine bottles. The producer of plastic packaging is developing PET bottles with both synthetic and natural corks. "Both types of corks are commonly used in the wine industry," Yi Jiang, market development manager for Amcor, told PlasticsToday. "The corks maintain the traditional wine experience and can ensure smooth conversion to PET on the customer's filling line with minimal changes."