Features of UV-resistant fabric: UV-resistant fabric is a protective material for the human body to avoid excessive ultraviolet radiation. Preventing ultraviolet rays from harming the human body has been valued by more and more consumers. Ultraviolet rays in the solar spectrum not only make textiles fade And embrittlement can also cause sunburn and aging of human skin, produce melanin and pigmentation, and more seriously, it can induce canceration and endanger human health.
The ultraviolet region in sunlight can be divided into three segments, which can be divided into three segments. The wavelength 400-320nm region is called UV-A; the wavelength 320-280nm region is called UV-B; the wavelength 280-200nm region is called UV-C. UV-C The wavelength is shorter, it has been absorbed in the air, and cannot reach the surface of the earth. Ultraviolet rays account for about 6% of sunlight, of which the proportion of UV-A is large, and the proportion of UV-B is small. UV-A will penetrate under the epidermal tissue It causes muscles to lose their elasticity and rough skin, causing wrinkles. UV-B has skin cancer problems. Therefore, it is required to effectively shield the short-wavelength parts of UV-B and UV-A.
The absorption of ultraviolet light by the skin is related to its wavelength. The shorter the wavelength, the smaller the depth of penetration into the skin, and the weaker melanin deposits after irradiation; the longer the wavelength, the greater the depth of penetration into the skin, and the stronger melanin deposits after irradiation. Due to the photochemistry The effect of the reaction, the higher energy photon flow can cause the denaturation of nuclear proteins and some enzymes in the cell.
Due to the weak penetration of ultraviolet rays into tissues, deep tissues under the skin are less injured. However, severe ultraviolet rays can cause systemic reactions such as fatigue, low fever, and drowsiness. Some people's skin is allergic to ultraviolet rays and sunlight occurs after light. Dermatitis (also known as sunburn), itching, tingling, desquamation of the skin in the exposed area, and may ulcerate and scab.
