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The human way of life and production should be adjusted to be more friendly and harmless to the environment. That is, the measures to control environmental pollution should be put on the adjustment of lifestyle and production process, not just after the generation of pollutants. According to this principle, in the late 1980s, human society began to pay attention to various impacts on the environment in the whole process of production, use, recycling and discarding of products, that is, to comprehensively analyze the impact of each link on the environment in the whole life process of products from cradle to grave.
In order to obtain a long-term market share for a new product, in addition to the impact of the product production process on the environment, it is also necessary to analyze and evaluate the various impacts of the source of raw materials and the destination of products on the environment, and make quantitative analysis, so as to draw a correct conclusion about which product is more viable.
PP lunch box is a disposable lunch box made of plastic, mainly including PP polypropylene and PS polystyrene, which are non-toxic, tasteless and odorless, and PP is relatively soft. Generally, PP is used at a temperature of - 6 ° C to+120 ° C, so it is especially suitable for holding hot food, which can be heated in a microwave oven or even cooked in a steam cabinet. The use temperature of modified PP can be controlled at - 18 ° C to+110 ° C, The lunch box made of this PP can not only be heated to 100 ℃ for use, but also be put into the refrigerator for refrigeration. After use, it can be completely recycled.