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1. Plastic type: disposable lunch boxes made of plastic mainly include PP polypropylene and PS polystyrene, which are non-toxic, tasteless and odorless.
2. Cardboard type: Cardboard snack box is made of 300-350g bleached kraft wood pulp paperboard through die cutting, bonding, die cutting, pressing, shaping and other processes similar to sheet metal processing.
3. Starch type: edible fast food box made of starch. It is made of starch plants, added with dietary fiber and other edible additives, stirred and kneaded. It is refined by biological compounding, cross-linking of glycans, calcium ion chelation and other technologies
4. Pulp molding type: wood pulp or annual herbaceous fiber pulp such as reed, bagasse, wheat straw and rice straw are pulped and purified, added with appropriate non-toxic chemical additives, and formed, dried, shaped, shaped, cut and disinfected.
5. Plant fiber type: In terms of environmental protection advantages, plant fiber lunch box has obvious advantages. It is made of plant fiber extracted from rice straw, rice husk, bagasse, etc. as raw materials, added with molding agent, adhesive, water resistant agent and other additives, and then molded through a molding machine, and then dried, shaped, disinfected and other post-processing.
6. Degradable plastic lunch box: the so-called degradable plastic is to add a certain amount of additives in the production process of plastic
7. Biodegradable lunch box: it takes starch as the main raw material, adds one-year growth period plant fiber powder and special additives, and is processed by chemical and physical methods to make a biodegradable snack box.
After a detailed introduction of the above seven different kinds of lunch boxes, it is not difficult to see that the biodegradable lunch box is an advanced environmental protection product, which does not pollute the environment and can completely replace the foam lunch box.