Classification color of trash can

1. Green-kitchen waste: Green is a symbol of environmental protection, which is closely related to plants in nature. For primitive humans, green environment means sufficient food and water, and the positive feeling of green has been integrated into the brain during the evolution and has been preserved to this day. Otherwise, it is always said that "green mountains and green waters are Jinshan Yinshan", and green represents freshness, safety, calmness, life, nature, vitality and recyclability, coming from nature and returning to nature.

2. Blue-recyclable garbage: Blue is an eternal symbol, just like the purpose of garbage recycling, which can increase the overall service life of materials, reduce the pressure on resources and reduce dependence on the international raw material market. Blue gives people a comfortable feeling, representing a broad mind, endless and harmonious place. Blue is often used as a hint and indication in the marking color standard. Using blue to represent the recyclable garbage sorting bucket can also better symbolize the meaning of garbage recycling.

3. Gray-other garbage: among the four garbage sorting barrel combinations, gray is the only achromatic color. It is a color between black and white, belonging to an extreme "gray zone". It is quiet, tolerant and neutral. Because, "other ambiguous garbage" belongs to it.

4. Red-harmful waste: Red has always been used to warn dangerous places, and is regarded as a symbol of bloodshed, danger and terror. We have known from an early age that red means danger and reminds us to avoid danger. It will first remind people of mistakes and failures. Therefore, red is applied to every scene in life, including memorizing, proofreading and reading warning slogans.