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  • What plastic bags are safe for food?

    Time: 2022-01-06 Source: Plastic Bag Wholesale Author: Julie

    Now we all like to use plastic bags for shopping, which is convenient, but do you know its harm? So, What plastic bags are safe for food?
    There are many types of plastic shopping bags, but the only plastic products that are allowed to directly contact or contain food are plastic bags made of raw materials such as polyethylene, polypropylene and melamine. These three kinds of plastics cannot be added with additives when making food bags, so they are basically non-toxic. It is a product allowed by the country, but the price is more expensive.  Food-grade plastic bag is safe and healthy.
    Generally speaking, non-food contact plastics are made of polyvinyl chloride. Polyvinyl chloride is cheap, easy to color, bright in color, not easy to deform, easy to process and manufacture, and various additives can be added. This kind of plastic is widely used, such as industrial and agricultural plastics, daily necessities and raincoats, sandals, toys, etc. Polyvinyl chloride is currently the largest plastic produced in China. The main reason why it cannot be used in food packaging is because of its toxicity. There are two sources of toxicity of PVC. One is the quality of the vinyl chloride plastic itself. Fully polymerized polyvinyl chloride is a high molecular compound, which cannot be absorbed by humans and animals, and is basically non-toxic. Its toxicity lies in the toxicity and carcinogenicity of the incompletely polymerized free vinyl chloride monomer. The second is the toxicity of the additives added in the polymerization process. Many industrial additives are toxic.

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