Why silk garments crumples in hot water?

Silk garments crumple in hot water primarily due to the protein structure of silk fibers, which can be altered by heat and moisture. When exposed to hot water, the fibers may lose their natural tension, leading to a loss of shape and the formation of wrinkles. Additionally, the heat can cause the fibers to relax, resulting in crumpling as they dry. Proper care, such as using cold water and gentle handling, can help maintain the fabric's appearance.