As the name suggests, garbage bags are used to hold garbage. Garbage bags include ordinary garbage bags and environmental garbage bags.
The raw material of ordinary garbage bags is non degradable polyethylene. According to the traditional burial or incineration methods, it will cause environmental pollution, so it does not really play the role of "environmental protection". Some garbage bags add degradable "starch machine" to the raw materials, but they can only be "partially" degraded, and the garbage bags are scattered into "flakes". The broken garbage bags can not be safely degraded, so this is not really "environmental protection".
Only fully degradable garbage bags are really environmentally friendly garbage bags. They degrade into water and carbon dioxide without polluting the air and soil. Because photodegradation and water degradation need to be degraded in a specific environment, "biodegradation" is relatively common in the market. So far, the cost of degradable garbage bags is 3-5 times that of ordinary garbage bags, and the use cost is much higher than that of ordinary garbage bags, so few users will choose to use environmental protection garbage bags. Biodegradable garbage bags occupy a very small market share, so the circulation is very small. When we choose to buy, we must be careful.