The pure cotton fabric is composed of plant fibers. When the fabric is infiltrated, water molecules will enter the cotton fiber, which will cause the fiber to expand. The longer the time in the water, the larger the shrinkage. Of course, this is only relative,... большеThe pure cotton fabric is composed of plant fibers. When the fabric is infiltrated, water molecules will enter the cotton fiber, which will cause the fiber to expand. The longer the time in the water, the larger the shrinkage. Of course, this is only relative, and it will not shrink endlessly.