According to national regulations, disposable paper cups "cannot be artificially added with fluorescent whitening agent". Disposable paper cups are divided into cold drink cups and hot drink cups according to their purpose. Once misused or misused, it will affect the health of the body. The raw material for the waterproof layer of the disposable paper cup is polyethylene. Inferior paper cups are made of recycled polyethylene, which will produce many harmful substances in the process of processing and production. The paper cup is coated with a layer of polyethylene water-proof film on the inside to achieve the water-proof effect.
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