Definition and Uses

Snack vacuum bags are airtight packaging containers. By removing the air inside the container, the sealed container reaches a predetermined vacuum degree. This packaging method is also called decompression packaging. It can maintain a highly decompressed state in the bag. The scarce air is equivalent to the low oxygen effect, which makes it impossible for microorganisms to survive, thereby achieving the purpose of keeping the fruit fresh and free of disease and rot. ‌

Material and Characteristics

The materials of snack vacuum bags are generally PET/AL/CPE or PET/NY/AL/CPE, etc. Among them, PET (polyester) has a better printing effect, NY (nylon) has low oxygen permeability, AL (aluminum foil) has strong barrier properties and is opaque, and CPE (polyethylene chloride) is used as the inner layer of the packaging. The selection of these materials directly affects the storage life and taste changes of food. Good material selection is the key to successful packaging. ‌

Usage scenarios and advantages

Vacuum bags for snacks are widely used in the food, clothing and other industries, and have the advantages of moisture-proof, dust-proof and anti-bacteria. In terms of food preservation, vacuum packaging can extend the shelf life and maintain the color, aroma and taste of food. In addition, vacuum packaging is also used for packaging of fluffy products such as mechanical parts and down products, which can reduce the space occupied by items and facilitate transportation and storage.

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