It belongs to mulberry silk. Avoid oil stain. Don't rub the washing liquid directly on the surface of clothes, which will produce hairiness. Hand washing water temperature below 30 degrees Celsius or cold water is preferred. First, soak the clothes in clear water (preferably with tea juice or a little salt) for 5- 10 minutes; Then add special silk detergent or gold spinning lotion (shampoo can also be used) into water to completely dissolve it, and then put it into the clothes that have just been soaked; Hand wash the back of clothes gently, pat them with clear water after washing, and take them out and put them in a cool place (do not dry or expose them to the sun).

The dyeing process of hongyun yarn is very strict, and it is the only fabric in the world that uses pure plant dyes. Generally, it takes at least six months to dry completely, and the dye presents sunset-like color through photosynthesis.