Wool fibers have microscopic scales that when agitated and then exposed to water and heat tend to stick together causing the shrinkage. The edges of the scales in wool fiber interlock during the washing process, which prevents the fabric from returning to its original size once it has dried. This effect is also known as felting.Know More
Wool originally refers to the fleece of sheep. In the textile industry, however, wool fabric has also come to include the hair fibers taken from other animals such as alpaca, vicuna, angora goat and camel.
Hair that is harvested from Angora rabbits is not classified as wool, although the look, appearance and feel of the resulting fabric bears strong resemblance to wool. The fabric produced from the Angora rabbits also tends to shrink the most compared to any other type of wool fabric.Learn more in Clothing
According to a 2009 article in the Los Angeles Times, cashmere is eight times warmer than sheep's wool. It is also significantly lighter if the garment is made of high-quality, 100-percent cashmere.Full Answer >
Wool that shrinks due to an accidental hot water wash may be restretched. However, if shrinkage is noted only after the piece has been washed and dried, restretching is not helpful, according to About.com.Full Answer >
Washing the hoodie in hot water and drying it at a high heat is the best way to shrink it. That said, some types of fabric are resistant to shrinkage, especially those that are prewashed.Full Answer >
A simple way to shrink clothes that are too big is to wash them in cold water and heat them in a dryer. You need cold water, laundry detergent and a dryer to accomplish this task.Full Answer >