Differences between degradable plastic bags and ordinary plastic bags

　　1. Different materials

　　The degradable plastic bag (that is, environment-friendly plastic bag) is made of PLA, PHAs, PBA, PBS and other polymer materials.

　　The non degradable traditional plastic bag is made of PE plastic.

　　2. Different production standards

　　The degradable plastic bag shall comply with the national standard GB/T21661-2008, which has reached the environmental protection standard. The traditional non degradable plastic bags do not need to comply with this standard.

　　Degradable plastic bag

　　Environmental protection plastic bag production equipment includes plate making equipment, blow molding machine (also known as film blowing machine), plastic printing machine (types include intaglio printing machine, plate printing machine, cylinder printing machine and screen printing machine), compound machine and plastic bag making machine (generally divided into two types: hot cutting machine and hot cutting machine); The supporting equipment for the production of environment-friendly plastic bags includes: mixer, proofing machine, punch, punching machine, packer, granulator and pelletizer.

　　The annual output of plastics in China is 30 million tons, and the consumption is more than 6 million tons. If the plastic bag is calculated by 15% of the plastic waste every year, the annual plastic waste in the world is 15 million tons, while the annual plastic waste in China is more than 1 million tons, and the proportion of waste plastic in garbage accounts for 40%. Thus, a large amount of waste plastic is buried underground as garbage, which undoubtedly brings greater pressure to the originally scarce arable land.

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