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Standard marking for plastic tableware (3)

Update:29 Dec 2018
Summary:

The number "4" indicates that the plastic is made of LD […]

The number "4" indicates that the plastic is made of LDPE. Typical products are cling film, plastic film, and the like. The heat resistance is not strong. Generally, the qualified PE cling film will have a hot melt phenomenon when the temperature exceeds 110 °C, leaving some plastic preparations that cannot be decomposed by the human body. Moreover, the food wrapped in plastic wrap is heated, and the fat in the food can easily dissolve the harmful substances in the wrap film. Therefore, when the food is placed in the microwave oven, the wrapped plastic wrap is first removed.

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