About 36 billion garments are produced worldwide each year, which means we have to produce 36 billion tags to match it, which is a staggering number. This consumes a lot of wood to make labels, and the deteriorating natural environment is also greatly threatened. We redesigned the tag based on protecting the ecological environment and taking sustainable development as the premise. It is mainly composed of sodium stearate, soluble fiber, which is elastic and soluble, and the string is also water-soluble. We can put the bought new clothes directly into the washing machine for cleaning, and the tag will dissolve in water to form a liquid detergent, which is used to eliminate the chemical substances remaining in the clothes, so as to avoid harm to the skin of consumers.