Interpretation of Ultraviolet Antiseptic Effect

Whether the skin care film affects ultraviolet disinfectionmore and more people have been aware of the long-term serious damage caused by ultraviolet radiation to human body, and it is important to strengthen the protection against ultraviolet radiation from sunlight. With the wide application of full UV protection window film, people began to worry about whether the benefits of UV radiation will be shielded. Here is to read the sterilization effect of ultraviolet radiation.
The sterilization and disinfection effect of ultraviolet ray is related to the wavelength. The ultraviolet ray that really has the sterilization and disinfection effect in sunlight is UVC band (100-280nm). The ultraviolet ray wavelength in the range of 240-280nm can destroy and change the molecular structure of DNA (deoxyribonucleic acid) or RNA (ribonucleic acid) in the bacterial virus. Causes the growth sex cell death and the regenerative cell death, causes the bacterium to die immediately or cannot reproduce the offspring, thus achieves the sterilization disinfection effect. This band coincides with the range of UV absorption and photochemical sensitivity of DNA in the cell nucleus of the microorganism, especially the strongest bactericidal effect of UV at the wavelength of 253.7. But most of the UVC in sunlight is absorbed by the ozone layer in the atmosphere and can hardly reach the ground. Therefore, for the ultraviolet disinfection effect, the main use is artificial ultraviolet lamp (wavelength in the range of 240-280nm) irradiation method.
Most of the sun's UVB ultraviolet rays are absorbed by the ozone layer, and only 2% reach the earth's surface. Most of the UVB ultraviolet rays are absorbed by the skin epidermis and cannot penetrate into the skin interior again, which has the effect of erythema on the human body. Short-term irradiation can promote the mineral metabolism and the formation of vitamin D in the body. Timely and appropriate sunlight irradiation is beneficial to health. 98% of the ultraviolet (UV-τ) Max band (wavelength 380nm ~ 400nm) and UV-A band (wavelength 315nm ~ 380nm) in the sunlight can penetrate the atmosphere to reach the earth's surface, which has strong damage. Ultraviolet radiation has been determined to be related to the production of many diseases, such as: Wrinkles, sunburn, cataracts, skin cancer, visual damage and damage to the immune system, so the harmful effects of prolonged exposure to UV rays far outweigh their beneficial effects.
SANYOU window film has excellent absorption and blocking performance to UVA, car glass or building glass affixing skin care film, can 100% prevent UVA damage to human body, effectively protect human health.