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Packaging film is one of the most widely used packaging materials. Its main working principle is to use the softness, abrasion resistance and waterproofness of the film material to wrap the goods and play a protective role. The packaging film is usually made of plastic materials such as polyethylene, which has good stretch resistance and wear resistance, and can effectively prevent the packaged goods from being damaged by external impact during transportation and storage.
In addition, the working principle of the packaging film also includes preventing the product from being contaminated and maintaining the appearance of the product. By wrapping in the packaging film, the goods can avoid contact with dust, water vapor and other pollutants, so as to keep the goods clean and hygienic. At the same time, the packaging film with high transparency can make consumers clearly see the appearance and quality of the goods, and increase the desire to buy.
In general, the working principle of the packaging film is to use the characteristics of its material and structure to provide comprehensive protection and display functions for the product. Understanding the working principle of packaging film is helpful to choose the appropriate material and specifications of packaging film, improve the packaging quality of goods, and ensure the integrity and reliability of goods in the process of transportation, storage and sales.