Aluminum foil bags and composite bags are two common packaging materials, they have some obvious differences in performance and use, as shown below:

Material composition: Aluminum foil bag is composed of aluminum foil and plastic film, and composite bag is composed of multiple layers of plastic film, can include polyethylene (PE), polypropylene (PP) and other materials. Barrier performance: Aluminum foil has good gas and moisture barrier performance, which can effectively block oxygen, water vapor and light, etc., thereby extending the shelf life of the product. In contrast, the barrier performance of composite bags is poor, but still provides a certain degree of moisture resistance and barrier.

Overall performance: Aluminum foil bag has excellent oxygen barrier performance, waterproof performance and UV resistance, suitable for long-term storage of liquid, powder or granular products. The composite bag has good wear resistance, tear resistance, sealability and temperature resistance, and is suitable for packaging a variety of dry or wet products.

Transparency: Aluminum foil bags are usually opaque and can not directly observe the items in the bag, while composite bags can be set up transparent Windows according to customer needs, so that the items in the bag can be visible, easy to display and inspect goods.

Cost: Under normal circumstances, the cost of aluminum foil bags is relatively high, and the cost of composite bags is relatively low. In addition, the production process of aluminum foil bags is slightly more complicated and requires special equipment and processes. According to product characteristics and needs, it is very important to choose the right packaging materials. Aluminum foil bags are suitable for products that require excellent barrier properties and preservation effects, such as food, medicine, etc. Composite bags are suitable for products that require good durability and visibility, such as clothing, groceries, etc.