The 6 main barrier characteristics of composite packaging film

Laminated packaging film is becoming more and more popular in our industry, but are you clear about the barrier characteristics of laminated packaging film? Through the interaction of different materials in the film, the advantages of each layer are accumulated, and the following are the functions of composite packaging film.

(1) Water vapor barrier: composite packaging roll film can protect dry goods from moisture, such as baked products, powdered products.

(2) Acid barrier: prevent oxidation and ensure the freshness of food, such as for fat and fresh goods, etc.

(3) carbon dioxide barrier: to prevent carbon dioxide loss in MAP packaging, to achieve a stable composition of the packaging gas, such as carbonated beverages.

(4) Aroma barrier: composite packaging roll film will effectively protect the aroma does not volatilize out in the packaging and loss, such as coffee and milk tea, etc.

(5) light barrier: to prevent the oxidation of light, such as dairy products.

(6) Seal firmly: in order to prevent its rupture, the seal uses the heat pressure sealing technology.

These are the barrier characteristics of composite packaging film. So what are you waiting for, find us, we look forward to cooperating with you!