The phenomenon of garment size reduction following a cycle in a heated clothes-drying machine is a common occurrence. This dimensional change is primarily attributable to the application of heat and mechanical action on textile fibers, causing them to contract and tighten. This effect is more pronounced in natural fibers, such as cotton and wool, compared to synthetic fibers like polyester.
Understanding the underlying causes of this contraction is beneficial for both consumers and textile manufacturers. For consumers, it allows for better garment care practices, minimizing the likelihood of unwanted size alterations and prolonging the lifespan of clothing. For manufacturers, this knowledge informs fabric pre-treatment processes, such as pre-shrinking, which aims to mitigate shrinkage after purchase. Historically, shrinkage has been a persistent issue in textile production, leading to ongoing research and development of methods to control fabric stability.