国外两种新包装材料美国最近开发两种新包装材料。美国杜邦公司推出“特卫克”包材,是用高度聚乙烯微细纤维经特殊处理成型的一种无纺布,具有强度高、重量轻、光滑、不起毛、遮光、防水、耐腐蚀、耐磨、防燃和良好的可印刷性等优点,兼有纸、薄膜、布的优良性,应用广泛。美国Tic Two new foreign packaging materials The United States recently developed two new packaging materials. The United States DuPont launched the “Tyvek” package material, is a non-woven fabric formed by a special treatment of high degree of polyethylene microfiber, with high strength, light weight, smooth, lint-free, shading, waterproof, corrosion resistance, Grinding, flame-retardant and good printability, etc., both paper, film, cloth excellent, widely used. American Tic