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What are the standards for food packaging bags?

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depending on your material, you can refer to the following standards
GBT 28118-2011 plastic and aluminum foil composite film and bag for food packaging
GBT 30768-2014 paper and plastic composite film and bag for food packaging
GB 9688-1988 hygienic standard for polypropylene molded products for food packaging
GB 9687-1988 hygienic standard for polyethylene molded products for food packaging

what is the standard of BOPP composite CPP structure

1. 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 bubbles, perforation, water marks, broken tendons, poor plasticization, fish eye stiffness and so on
the deviation of specification, width, length and thickness should be within the specified range
physical and mechanical properties include tensile strength and elongation at break, which reflect the ability of the product to stretch with the use process. If this item is unqualified, the food packaging bag is prone to rupture and damage during use
2. The inspection items of food packaging composite film bags 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. No impurities, foreign matters, oil stains and other pollution
the bagged soaking solution shall be free from peculiar smell, odor, turbidity and decolorization.

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