First, Bright Plastic follows safety and health principles. Urban residents need close contact when they use public facilities. Therefore, hygiene and safety are particularly important. On one hand, the production materials of the dustbin should be safe. So it’s important to choose materials with strong corrosion resistance and easy to clean; on the other hand, avoid contact with the hands as much as possible; For the dustbins in the living quarters, the design should avoid sharp edges and corners, providing safety and convenience for the elderly and children. Second, Bright Plastic follows the human-computer interaction principle. The process of throwing garbage is only a few seconds. If you encounter a human-computer interaction obstacle when using a public dustbin, such as, you don't know how to turn it on, the opening method is laborious or you cannot quickly determine which sorting bin to deliver, etc. People are confused and cannot follow the design to complete the operation process. Therefore, the design of the dustbin should follow the principle of easy-to-identify and easy-to-operate human-computer interaction. Third, Bright Plastic follows coordination with the environment principles. Urban public dustbins are coordinated with the surrounding environment. They are an important part of public environmental facilities and exist between cities as part of the urban landscape environmental system. The design of public facilities with environmental art characteristics should follow the principle of harmony with the environment: The facilities and the surrounding environment should be harmonious. The facilities should reflect the cultural characteristics of the city and reflect the unique tradition and culture of the city. The design of the urban waste bin can be coordinated with the surrounding environment. Plastic Dustbin is extensive in various industries including cleaning and sanitation, cleaning our cities, communities which is an environmentally friendly product in real life around us. More than 500 million dustbins are in use in China, 66% of which are iron and wood dustbins, and recyclable dustbins account for only 30%, so there is still a lot of space for plastic dustbins.