南美塑料协会和包装协会联合举办了1988年国家级会议。会议突出讨论了今后十年塑料用于包装的重要性。塑料比传统的包装材料需要量大,但面临着三个问题:价格问题,树脂供应问题及来自环境的不利因素。硬包装最近才起用了涤纶。可能今后十年将扩大使用。它的优点适用于食品、饮料的包装,尤其是用作中间包装。高压聚乙烯和低压聚乙烯包装薄膜在南 South American Plastics Association and Packaging Association jointly held a 1988 national conference. The meeting highlighted the importance of plastic packaging for the next ten years. Plastics are more demanding than traditional packaging materials but face three problems: price problems, resin supply problems, and unfavorable factors from the environment. Hard packaging recently started using polyester. It may be expanded in the next ten years. Its advantages apply to food and beverage packaging, especially for intermediate packaging. High-pressure polyethylene and low-pressure polyethylene packaging film in the South