While the express delivery industry is becoming more and more intelligent, express packaging bags must also keep pace with the times, and they cannot be polluted and suffer from customer com PLA ints due to express packaging bags. Distinguish between biodegradable express packaging bags and ordinary PLA stic express packaging bags in terms of materials:Biodrop express bags are PLA The modified materials are all bio-based degradable materials. Ordinary PLA stic courier bags are made of petroleum-based PLA stics or added with recycled materials.The process of using recycled materials to produce express bags is not illegal, but the waste materials used to produce recycled materials are confusing and difficult to trace.”Non-compliant recycled materials are exactly these’poison’The fundamental source of express bags also makes express bags a source of pollution.The most important point is that biodegradable express packaging bags can be composted, because all-degradable express packaging bags can be degraded into carbon dioxide and water under composting conditions, and turned into organic fertilizers, ensuring ecological balance.Ordinary PLA stic express bags cannot be directly landfilled due to factors such as materials, and need to be sorted. Landfilling or incineration will deteriorate the soil and pollute the air environment.