Silk pajamas have poor color fastness because the silk fabric has strong hydrophilicity and dyeing properties. When silk pajama comes into contact with water or cleaning agents in the washing or cleaning process, the dye easily dissolves and penetrates into the fiber, causing staining. However, due to the loose fiber structure of silk, the dye easily penetrates into the fiber, leading to poor color fastness and easy fading or color loss.
To avoid fading or color loss of mulberry silk pajamas, mild cleaning agents and cold water should be used for washing, and cleaning agents containing bleach should be avoided. Also, rubbing and friction should be avoided during cleaning, and gentle rubbing is recommended to reduce the risk of damaging the pajamas. Additionally, silk pajamas should be kept away from direct sunlight as UV radiation can also affect the color fastness of silk fabric. Before washing, the pajamas can be soaked in a saltwater solution to help maintain their color and prevent fading.
In summary, when choosing pure silk pajama sets, attention should be paid to their color fastness, and cleaning with mild detergents and cold water is recommended. Soaking in saltwater and gentle rubbing can help maintain the color of the pajamas and keep them looking fresh for longer.