Ultraviolet rays and their effects on the human body

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UV protection UV fabric Textile UV protection fabric

For a long time, people have only known that ultraviolet rays in the sun are beneficial to the human body, such as promoting the production of vitamin D. Synthesis, promotes the development of bone tissue; growing children spend more time in the sun and do more outdoor activities, which is beneficial to preventing rickets and good for health. Dark and red skin is a symbol of health, etc. However, modern scientific research shows that the harmful effects of ultraviolet rays on the human body are far greater than its beneficial effects. Excessive exposure to UV radiation is harmful. It mainly affects the eyes and skin, causing acute keratitis and conjunctivitis, chronic cataracts and other eye diseases, and inducing skin cancer.

Ultraviolet rays can be divided into ultraviolet A (wavelength 315-400nm), ultraviolet B (wavelength 280-315nm), and ultraviolet rays (wavelength 280-315nm) according to their different radiation wavelengths. There are three bands of UV C (wavelength below 280cm). Since the atmospheric ozone layer absorbs very little UV-A, UV-A can reach the ground, and changes in its radiation amount are basically not related to changes in the ozone layer; UV-C, on the other hand, is completely opposite to UV-A. It is almost completely absorbed by the ozone layer. Therefore, it basically does not reach the ground; and the amount of ultraviolet B radiation is closely related to changes in the ozone layer, and it also has a greater impact on humans.

In recent years, there are more and more UV-resistant fabrics. Generally, UV finishing agents are added to the fabrics, and fabrics are processed with UV-resistant fibers to prevent UV rays. To reduce the harm to the human body, various UV-resistant fabrics have also begun to be sold on the market. The anti-UV fabric produced in the city has good UV resistance and can reach UPF50+.

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