PLA coated paper is mainly used for packaging and containers of food products and packaging materials. It is used in paper cups, lunch boxes, packaging, bags, etc. Because the product is completely made of raw materials extracted from plants, it can be 100% biodegradable into organic fertilizer in the laboratory environment for 90 days, fertilizing the land, absorbing carbon dioxide in the air in the degradation process and reducing the room temperature. PLA products have been legislated in some European countries. As a necessary product for food packaging, as a substitute for existing plastic products (petroleum extracts), PLA products are the first choice for packaging materials in the future.