PLA degradable lunch box usually refers to the product that combines PLA composite film and pulp molded product in the pulp molding process, that is, PLA film-coated product.
PLA composite film is a completely degradable film produced and processed from polylactic acid, which can be compounded on pulp molding and paper products by heating.
Polylactic acid (PLA) is a new type of biodegradable material, made from starch raw materials proposed by renewable plant resources (such as corn). Starch raw materials are saccharified to obtain glucose, which is then fermented by glucose and certain strains to produce high-purity lactic acid, and then a certain molecular weight polylactic acid is synthesized by chemical synthesis. It has good biodegradability and can be completely degraded by microorganisms in nature after use, and finally carbon dioxide and water are generated without polluting the environment. This is very beneficial to environmental protection and is recognized as an environmentally friendly material.
In view of the advantages of PLA, after the filming process is combined with the pulp molded product, not only can the use of water and oil repellent be saved, but it can also better seal the pores of the pulp molded product, making it impossible to prevent alcohol. The product can prevent alcohol leakage. At the same time, after the air holes are sealed, the tableware reduces the air permeability of the product during actual use, and the heat preservation performance is higher and the heat preservation time is longer.