The Causes of毛巾变硬
The causes of towel hardening can be traced back to the water quality and the soap used in the cleaning process. Hard water, which contains high concentrations of calcium and magnesium ions, reacts with soap to form a sticky residue that adheres to the fibers of the towel. Over time, this residue builds up and makes the towel feel harder and less absorbent. Additionally, the use of synthetic soap, which often contains harsh chemicals, can also contribute to the hardening of towels as they leave a layer of soap scum on the surface of the fibers. To prevent towel hardening, it is recommended to use a water softener to reduce the concentration of minerals in the water, and to opt for eco-friendly soaps that are gentle on the skin and the environment.
When we use towels for a long time, we may find that they become harder and less absorbent. This can affect the comfort and performance of the towel. So, what are the reasons for the hardening of the towel?
One of the main reasons for the hardening of the towel is the accumulation of calcium and magnesium ions in the water. These ions come from the hardness of the water and can be absorbed by the towel fibers during use. When these ions reach a certain concentration, they will react with each other to form scales, making the towel fibers brittle and less soft.
Another reason for the hardening of the towel is the use of chemical additives in the production process. Some manufacturers will add formaldehyde or other formaldehyde-releasing agents to improve the wrinkle resistance and moisture absorption of towels. However, these additives will cause irritation to the skin and affect the softness of the towel, resulting in a harder texture.
In addition, the way we use towels also affects the hardness of the towel. If we often use towels to wipe hands or face, the friction between the towel fibers will increase, resulting in more serious hardening of the towel. At the same time, if we do not wash the towel regularly, the dirt and grease on the surface will also accumulate on the fiber, making the towel harder.
To sum up, the hardening of the towel is mainly caused by the accumulation of calcium and magnesium ions in the water, the use of chemical additives in production, and our use habits. In order to maintain the softness and performance of the towel, we should try to reduce the hardness of the water, choose safe and healthy towels, and regularly clean and replace the towels.
Key words: towel hardening, water hardness, chemical additives, use habits, fiber脆性
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