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Are there any standards for food bags?

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food packaging bag is a kind of packaging design. In order to keep fresh and store food in life, product packaging bag is produced. Food packaging bag refers to the film container directly in contact with food and used to contain and protect food

the inspection items of single film bags for food packaging are mainly divided into the following categories. The appearance shall be free of defects such as bubbles, perforations, water marks, broken tendons, poor plasticization, fish eye stiffness and so on, and the deviation of specification, width, length and thickness shall be within the specified range

physical and mechanical properties include tensile strength and elongation at break, which reflect the ability of the product to be stretched during use. If this item is unqualified, the food packaging bag is prone to rupture and damage during use

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the inspection items of food packaging composite film bag are mainly divided into the following categories: the appearance shall be flat without scratch, scald, bubble, oil break and wrinkle, and the heat seal shall be flat without false seal. The film shall be free from cracks, pores and composite layer separation. There shall be no impurities, foreign matters, oil stains and other pollution. The bagged soaking solution shall be free of peculiar smell, odor, turbidity and decolorization

food packaging requirements:

the food itself shall be hygienic and safe, free of impurities, and meet the unique sensory requirements of this kind of food. The outer packaging requirements shall ensure the hygiene and safety of packaging materials, and the packaging shall ensure that the food will not deteriorate within the shelf life

primary protection provides the surface protection of the product, forming a very light and protective appearance around the product, so as to achieve the purpose of dust, oil, moisture, water and theft prevention. It is particularly important to wrap film packaging to make the packaged articles bear uniform force and avoid damage to the articles caused by uneven force, which can not be achieved by traditional packaging methods (binding, packaging, tape and other packaging)

the use of winding film for product packaging can effectively reduce the use cost. The use of winding film is only about 15% of the original box packaging, about 35% of the heat shrinkable film and about 50% of the carton packaging. At the same time, it can reduce the labor intensity of workers and improve the packaging efficiency and packaging grade

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