The main reasons why pure cotton clothes shrink during the washing process are as follows:
1. Structural characteristics of cotton fiber: The characteristics of cotton fiber are: There are certain gaps between fibers, and the bonding force between fibers is weak. When pure cotton clothing comes into contact with water, the fibers absorb water and expand. At this time, the gaps shrink and the bonding force between the fibers becomes stronger, causing the overall clothing to shrink.
2. The role of hot water and hot air: Hot water and hot air can accelerate the process of water absorption and extrusion drying of cotton fibers, thereby increasing the density of cotton fibers. The bonding force between them causes the clothing to shrink more obviously. Therefore, high-temperature washing and high-temperature drying will make cotton clothing more likely to shrink.
3. The role of mechanical force: Mechanical forces such as stirring and friction in the washing machine will also have a certain impact on pure cotton clothing. During the washing process, the fibers are pulled and squeezed by mechanical forces, causing micro-damage to the fibers, which in turn affects the bonding force between fibers and aggravates the shrinkage of clothing.
4. Chemical treatment: Some clothes may undergo chemical treatment during the production process, such as bleaching, degreasing, etc. These chemical treatments may break down the bonds between fibers, making the garment more susceptible to shrinkage.
5. Detergent selection: Improper detergent may cause clothes to shrink. Some detergents contain strong alkaline ingredients, which can corrode cotton fibers, damage the fiber structure, and cause clothing to shrink.
In order to reduce the shrinkage of pure cotton clothing, we can take the following measures:
1. Choose low-temperature washing: Try to choose low-temperature water to wash pure cotton clothes to avoid high temperature accelerating water absorption and shrinkage of fibers.
2. Hand wash or gentle mode: For pure cotton clothes that are particularly prone to shrinkage, you can choose to hand wash or use the gentle mode of the clothes washing machine to reduce the impact of mechanical force on the clothes. Fiber damage.
3. Choose the right detergent: Choose a detergent suitable for pure cotton clothes and avoid using strongly alkaline detergents to reduce fiber damage.
4. Prevent excessive drying: Avoid exposing washed cotton clothes to the sun for too long to reduce fiber shrinkage.
In short, pure cotton clothing is prone to shrinkage during the washing process, and various factors can cause the bonding force between fibers to weaken. By choosing the appropriate washing method and detergent, you can effectively reduce the shrinkage of cotton fibers and extend the service life of your clothes.
