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Milk film is a packaging film made of polyethylene or similar materials, usually used for packaging food, cosmetics and other goods. Its working principle is mainly divided into the following aspects
First of all, the physical isolation function of the milk white film can effectively prevent the invasion of outside air, moisture and microorganisms, thereby extending the shelf life of the product. This isolation can effectively protect the goods from oxidation, pollution and corruption, and maintain the freshness and quality of the goods.
Secondly, the milky white film has a certain moisture-proof and fresh-keeping performance, which can effectively prevent the loss and infiltration of water. In this way, the moisture balance within the commodity can be maintained, and the commodity can be prevented from drying and deteriorating, thereby extending the shelf life of the commodity.
In addition, the milky white film also has a certain tensile and abrasion resistance, which can effectively protect the product from the friction and extrusion of the external environment. This protection can reduce the damage and wear of the goods, and maintain the integrity and aesthetics of the goods.
In general, the working principle of the milk white film is to provide effective packaging and protection for the product through physical isolation, moisture-proof preservation and protection. It plays an important role in the process of commodity transportation, storage and display, and has become one of the indispensable packaging materials in modern life.