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一、软包装材料的透气性研究 传统的金属、玻璃包装对氧气和水蒸气等具有完全不渗透性能,是食品、医药等包装的最好材料,但是随着包装技术的不断发展,能够提供保质、保鲜、保风味以及延长货架期的高阻隔塑料包装材料,因为具有成本低、重量轻、耐冲击、透明、可微波加热、方便、包装设计的选择余地大等特点已成为金属、玻璃包装材料的强有力的竞争者,在食品、医药等包装方面获得了迅速发展和广泛应用。
First, the permeability of flexible packaging materials Traditional metal, glass packaging on oxygen and water vapor completely impermeable, is the best food, medicine and other packaging materials, but with the continuous development of packaging technology to provide durability, Preservation, security flavor and shelf life of the high barrier plastic packaging materials, because of its low cost, light weight, impact resistance, transparency, microwave heating, convenience, packaging design options such as the large size has become a metal, glass packaging materials Strong competitors in the food, medicine and other packaging has been rapid development and widespread use.