What are the classifications of disposable fast food boxes?

Classification: Plastic type: Disposable lunch boxes made of plastic mainly include PP polypropylene and PS polystyrene. 120 degrees, so it is especially suitable for hot meals and hot dishes. It can be heated in a microwave oven, or even cooked in a steam cabinet. The temperature of the modified PP can be adjusted from -18 degrees to +110 degrees. This kind of PP is made of In addition to heating to 100 degrees, the lunch box can also be used in the refrigerator. Cardboard type: The cardboard fast food box is made of 300-350 grams of bleached salt wood pulp cardboard, which is made by die-cutting bonding or die-cutting pressing, shaping and other processes through a stamping process similar to sheet metal processing. In order to prevent its oil seepage or water seepage, it is necessary to coat its surface or apply chemical additives. In the process of production and use, it is non-toxic and has no effect on the human body. Pulp molding type: pulp and purify wood pulp or reed, bagasse, wheat straw, rice straw and other annual herbaceous plant fiber pulp, add appropriate amount of non-toxic chemical additives, form, dry, shape, shape, and trim. The aesthetics of the product is not high, and it will also increase the pollution of wastewater.