"Hide", people show good things, and bad things are hidden. Therefore, the design draws on people's "psychology" and USES the color change of ink and ink as the design element, reflecting people's dependence on resources, which is a symbol of coexistence and circulation. Ink can turn clean water into black, putting the unrecyclable waste into recyclable waste and polluting recyclable resources. Transparent and black can be more visual to see garbage classification. It suggests the psychological consciousness of public garbage classification from the Angle of psychological suggestion.

He is a teacher from China. He majored in industrial design. He liked to observe life. To discover new problems. He learned that the public service through a course design is an important direction. This made him on the design of public interest. He felt that the improvement of the common design for society and environment, the whole country has a lot of help. Through the course at the peace of the study, social investigation, he found the Chinese public waste classification of consciousness is very low, is much weaker than the developed countries. Through the course of the study and discussion research, and others have made the relevant design. He is an ordinary student. Learn what utilitarianism. Important is to want to make some contribution to society. Through the design to improve the social development. And the protection of people live in their homes.

Ink is a traditional Chinese writing instrument. The ancients used him to water, depicting and writing patterns and texts of different shades. By using the color change of water and ink as an inspiration for the design of this type of office trash can, reflecting people's dependence on resources, there is a symbol of coexistence and circulation.