PLA+PHBV= Bio-Ban PHBV: It is an aliphatic polyester biomaterials made from starch using fermentation engineering technology. Different from aromatic polyester materials such as polyester, it is digested and fermented by specific bacteria, but can be completely decomposed into carbon dioxide, water and biomass under soil or compost conditions after being discarded.So this material will not pollute the earth's environment after being discarded. PLA: Polylactic acid (PLA) is also a new biodegradable material, which is made from starch extracted from renewable plant resources such as corn.Starch is obtained by saccharification to glucose, and then fermented by specific strains to produce high purity lactic acid, through synthesis to obtain a certain molecular weight polylactic acid.It has good biodegradability. After being discarded, it can be completely degraded by microorganisms in nature, resulting in carbon dioxide and water, without causing environmental pollution Advantage of Bio-Ban material 1. It is more stable than hemp natural material against bacteria and has a wider range of antibiotics and viruses, suitable for hospitals and clinics. 2. Material can be environmentally renewable, the whole production process is environmental and pollution-free 3. It is more safe, durable and healthy than normal products treated with antibacterial agents, suitable for infants and children.