Our commonly used composite bags have two or more materials and glue them together. The main purpose is to fit all product packaging present. Composite packaging materials have been used in various fields, such as food, medicine, military supplies, daily chemical products, daily necessities, etc. Among them, composite packaging materials are used most in the food industry.

1. The composite bag has the advantage of high strength: due to the multi-layer material, the product has strong puncture resistance and tear resistance;

2. The composite bag can resist cold and high temperature: it can be sterilized at high temperature and refrigerated at low temperature;
3. Beautiful appearance: it can better reflect the value of the product;

4. Good insulation performance, strong protection performance, airtight gas and water vapor characteristics, not easy to be attacked by bacteria and insects, good shape stability, and not affected by humidity changes;

5. The composite bag has stable chemical properties, strong acid and alkali resistance, can be placed for a long time, has strong tear resistance, good packaging effect, and the packaged items are not limited by shape and state, and can hold solids and liquids;

6. The composite bag has low processing cost, low technical requirements, and can be mass-produced; moreover, the composite bag is easy to form, and the production raw materials are abundant and cheap;

7. The composite bag has high transparency, and the composite packaging bag is relatively high-end and atmospheric, and the composite bag has good insulation;

8. The composite bag has high strength, good ductility, light weight and strong impact resistance.