Fully biodegradable plastic bags are made of biodegradable polymers formed by biological fermentation of plant straw and starch. And its quality can be compared with the quality of plastic bags we usually use. In terms of quality, biodegradable plastic bags have good tension, strong stretch, high softness and good hand feel. The key is that it can degrade naturally. It is a new product advocated at present. All biodegradable plastic bags have been put into use in large supermarkets and will not cause environmental pollution. Plastic bag is a kind of bag we often use, but the fully biodegradable plastic bag is different from the plastic bag we usually see. Under the action of biological environment such as sunlight and water, it can degrade itself and does no harm to people or the environment. It belongs to green packaging bag. Therefore, this kind of bag is cleaner and hygienic in restaurants, supermarkets and other places. It is a green product.