复合材料包装是继塑料薄膜包装之后发展的新包装方法。因为塑料薄膜包装有气密性差和强度低等缺点,所以六十年代以后,国外采用了塑料、铝箔和纸等组成多层包装材料,广泛应用于包装多种轻工产品。这种复合材料包装有许多优点:它可以延长产品贮藏期,提高产品保藏质量;可以代替金属、玻璃等包装材料,降低包装成本;同时便于在生产中实现自 Composite packaging is the new packaging method developed after the plastic film packaging. Because plastic film packaging with poor air tightness and low strength shortcomings, so the sixties later, the foreign use of plastic, aluminum foil and paper, and other multi-layer packaging materials, widely used in packaging a variety of light industrial products. This composite package has many advantages: it can extend the shelf life of the product and improve the quality of the product; it can replace the metal, glass and other packaging materials, reduce packaging costs; at the same time facilitate the production of self