What does it mean to wash pants in Hetao?

There is a saying that "the Hetao washes the pants"---if you don't do it, you won't leave~! I used to think it was a joke. Clothes that people wear daily are mainly divided into two categories: natural fibers and chemical fibers. Since they absorb ultraviolet rays in sunlight and the degree of damage to fibers caused by ultraviolet rays are different, they should be treated separately when drying.

1. Clothes made of pure wool, polyester, or chlorine can be dried in the sun after washing.

2. Although cotton and blended wool clothing can be left to dry in the sun after washing, they should be put away in time to avoid fiber damage caused by excessive exposure to the sun.

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3. Clothes made of tussah silk, polyester, and polypropylene fabrics , after washing, you can hang it in the sun to dry until it is 50% to 60% dry, and then move it to a cool and ventilated place to dry.

4. Silk, nylon fabrics, and viscose fiber clothing should not be exposed to the sun after washing. They should be ventilated and dried in a cool place