First, what is a composite bag?
Composite bag is a bag made of different materials composite. It usually includes the composite of plastic film, paper, aluminum foil and other materials. Composite bags are moisture-proof, oxidation-proof, anti-static and other functions, which can protect the quality and safety of products.

Second, the types of composite bags
1. Plastic composite bags

Plastic composite bag is a plastic film as the substrate, after the composite processing of bags. Commonly used in packaging food, cosmetics, medicine and other products. Plastic composite bags have moisture-proof, anti-oxidation, anti-static, shockproof and other functions, can effectively protect the quality and safety of products.

2. Paper-plastic composite bag

Paper-plastic composite bags are paper and plastic film as the substrate, after composite processing of bags. Commonly used in packaging cosmetics, medicine, food and other products. Paper-plastic composite bags have moisture-proof, anti-oxidation, anti-static and other functions, can effectively protect the quality and safety of products.

3. Aluminum-plastic composite bag

Aluminum-plastic composite bag is made of aluminum foil and plastic film as the base material, after composite processing of the bag. Commonly used in packaging coffee, tea, beef jerky and other products. Aluminum-plastic composite bags have good oxygen barrier and moisture resistance, can protect the taste and quality of the product.

Third, the use of composite bags
Composite bags are widely used in various fields such as food, cosmetics, medicine, food and so on. The main uses include:

1. Food packaging: such as cookies, chocolate, candy and so on.

2. Cosmetic packaging: such as creams, shampoos, shower gels and so on.

3. Pharmaceutical packaging: such as drugs, health products, etc.

4. Grain packaging: such as rice, flour, wheat and so on.
Composite bag is a kind of bag made of different materials composite, with a variety of functions, can effectively protect the quality and safety of products. Commonly used in food, cosmetics, medicine, food and other areas of packaging. Different kinds of composite bags have different uses and characteristics, you need to choose the right composite bag according to the needs of the product.