Biodegradable plastic bags are commonly known as fully biodegradable plastic bags. The executive standard is GB / t38082-2019. PBAT + PLA, PBAT + PLA + st and other mixtures are used. The relative decomposition rate is more than 90%. Soft material, translucent bag body, can be naturally degraded, the price is relatively expensive.

Starch based degradable plastic bag bio based corn plant starch ST30 degradable material, the executive standard is GB / t38079-2019, using ST30 plant corn starch mixture, bio based content of 20% - 50%. The material is slightly soft, the bag body is milky white and yellowish, which can be buried and degraded, and the price is moderate.