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Food packaging bag

Food packaging bag is a kind of packaging design. In order to keep fresh and store food conveniently in life, the product packaging bag is produced. Packaging of food in direct contact with food containers and film.
Food packaging bag should use food grade plastic film for production, generally more than two layers of composite material packaging bag.
According to the application scope, food packaging bags can be divided into: ordinary food packaging bags, vacuum food packaging bags, inflatable food packaging bags, boiled food packaging bags, steamed food packaging bags and functional food packaging bags.
The quality of food packaging bags in the flexible packaging industry, especially the sanitary quality, is directly related to the food safety of the packaging. Therefore, it is necessary to ensure that the raw materials and additives used meet the quality requirements of the management system.
In order to ensure the healthy development of the flexible packaging industry, it is necessary to improve the industry and national standards of packaging film bags and strictly implement them, strengthen the inspection and supervision of food packaging, prevent unqualified food packaging from entering the market, and strengthen management.
The inspection items of food packaging single film bags are mainly divided into the following categories:
The appearance shall be free of defects such as air bubble, perforation, water mark, rib burst, poor plasticization, fisheye block, etc.
The deviation of specification, width, length and thickness shall be within the specified range.
The physical and mechanical properties include tensile strength and elongation at break, which reflects the ability of the product to be stretched in the process of use. If this item is not qualified, the food packaging bag is prone to rupture and damage during the use process.
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