Introduction To UV Resistant Fabric

More and more consumers have paid attention to preventing the harm of ultraviolet rays to human body. Ultraviolet rays in the solar spectrum not only fade and embrittle textiles, but also cause sunburn and aging of human skin, resulting in melanin and color spots. More seriously, they can also induce cancer and endanger human health.

Ultraviolet rays have the most obvious effect on human skin and eyes. The absorption of ultraviolet rays by skin is related to its wavelength. The shorter the wavelength, the smaller the penetration depth into the skin, and the weaker the melanin deposition after irradiation; The longer the wavelength, the greater the penetration depth into the skin, and the stronger the melanin deposition after irradiation. Due to the photochemical reaction, the photon flow with higher energy level can cause the denaturation of nucleoprotein and some enzymes in cells. Therefore, after being exposed to ultraviolet radiation, it takes 6-8 hours for cells to change and show symptoms, including dry skin pain, skin wrinkling, and even blistering.

Because the penetration of ultraviolet rays to tissues is very weak, the deep tissues under the skin are less injured. However, severe ultraviolet radiation can cause fatigue, low heat, lethargy and other systemic reactions. Some people's skin is allergic to ultraviolet light, and they suffer from solar dermatitis (also known as sunburn) after exposure. The skin in the exposed area is itchy, tingling, desquamation, and may fester and form scabs. The actual observation shows that in the plateau area with an altitude of 3500 meters (the ultraviolet light is usually 3-4 times as much as that in the plain area), the exposed skin is exposed to ultraviolet light around noon for 20-40 minutes, and the skin is burning and peeling; For 40-80 minutes, the skin will develop papular blisters and cause various lesions.